Alvin Drafting Tips & Techniques from 1956

S t U (\ \ l \\ t t 1 1\\lS S \l \ l\ li l \ ft l\ \\ l) and

Select Drawing Scoles and Slide Rules

ALVIN

10l[W00D WIDTE EDGE - ENGINE DIVIDED Our finest profenional grade triangular Boxwood 1cale, of 1uperior workman1hip and appearance, facea completely embodied in while pla11ic for durability, engine divided for abarpneu of gradua\ion1, diviaiona ol precise accuracy .( with colored furrow, for quick choice of dHired 1cale, , improved dHign.

X-ACT 5 " POCKET S L I D E RULE

Machine divided prec1s 1 0 ·1 graduations deeply engraved with black and red scales. Fabricated of pure white Oivinyl Plastic dimensionally stable and resistant to acids, oils, etc. Complete 5" r u l e with scales K , A ,8, C i , C, D, S & T. Smooth riding Cursor, specia l l y designed chrome finish frame will not s l i p off rule. Furnished with leather sheath with simpl ified instructions.

NO. 222P

. . . . . . . . . . . . . . . . . . . . . .

1 0 " ALL-PLASTIC STUDENT MANNHEIM

fOI ,n,rc, HNCll lfTIUING OjJ(tlOIIUINl,"lf\lYH T11 SUlto'lla•••tft�IJ�,a" .,.,,,1 u�•• ro Al)CIEGHJKLMNt,, ,STUVW11Vl23-4�7e•tl * Al3CIEGHJKLMNI� � ,STUVWX'fZ23"1�i7••91.

$4.95 EA.

ABCHITECTS' OPEN DMDED No. z•1-12 in. Divided: 3/32, 3/16, 1/, . 1/, . 1/t , I. ¥., >/, , 1 1/1, 3" lo the fool. one edge divided to l6th1.

ENGINEEIIS' CHAIN SCALES - FULLY DIVIDED No. 241-12 in. Divided: 10, 20, 30, 40, 50, 60 parls to the inch.

l,1,1i11l,1,1,1,l,1i1,1rt1i1,1il,11i111li1,11111lt1,1iltl!L1ilwlilt!

Nos. 240 - 24 1 $4 .75 ea.

BOXWOOD WHITE EDGE - ENGINE DMDED

A very popular scale tor lhe Professional with oppos1le beveled edges SupplLed in polished ftntshed Boxwond with while gloshc edges Engine 01v1dcd graduations that are sharply engraved These scales are of a superior qualily i n hmsh and desion (double numbered) No. ZSS-12 i n. Divided full size, t 1 2·· ·.:. I It l inches lo ! 61hs. ( l f. ths acluall Holl size ( 6"' - � l lt.l inches to 1 6ths (32nda octuall.

NO. 360Y DO·ALL LETTERING GUIDE Three sins, '/1 ", 3/1&", an d 1/4 " upper case letters and numb ers with 1/1" lower case let­ ters, all on one quide. Size's 1 ¥1" x 9l,4" x .020". $2.60 EA. NO. 3605 Same as above with slant letters. $2.60 EA. NO. 260V Same as above without lower case . . . $2.20 EA. letters · NO. 2605 Same as No. 260V, but with slant . . , $2.20 EA, letters NO. 460V 31," Letters an d Numerals. . $1 .50 EA. NO. 560V 5h" Letters and Numerals $1 .75 EA. NO. 1 60G GrHk Lettering . . . . . . $2.50 EA,

$ 1 .95

ea.

10" ALL·PLASTIC STUDENT BASIC TRIG

ADJUSTABLE "A" SCALE

Ill--IJ<--0

.

--': 1�:�·l;· ;·;' 1' ' l.;· ;�·; I U.1 , , , . l.. .tl f, .,.l, I·.�.... . · :' �, - --''!c..'/'� ;�·,; !\;' ·,� L r-•,.....� , ...-�•r� 1

l

-SR-600NO. SR600 AdJu•table acalea divided Into degrees and minule1.

20" S "scale. AdJu1tabJe· cuu�r. Ideal tor all arlthmellc. ffiechanir:al and navigational problem,. $4 .9 5 ea.

10" ALL-METAL PROFESSIONAL LOG LOG

NO. SRl 3 1 1 Magnesium alloy core with white nllrale facing•.

Adjustable 2-color 1calea. Double cursor. C-D acalea on both aidea.

Sc�des: L-LLI-DF-CF-CI F-CI-C-D-LL3 and LL2 on one side in register with LLO <!ind LLOO-A-8-K-CI-C-D-S,ST and T on reverse side.

Complete with leatherene sheath $ 1 3.95 .ea.

" Cj) U I C· K L E E N " DRAFTI N G CLEAN I N G POW D E R

-.o3o thick s 1 .00 No. 50 Pocket Pal Useful circles, hexes, deltas and squares. Cul ouls scaled from 1 / 1 6" up lo 1 •. 3-5/16" x 5'

BOXWOOD WHITE EDGE - ENGINE DIVIDED rour bevel Pocket Scale, w:1 h plastic laces embodied ever sea soned Boxwood The ideal pocket scale. 1nciispens1ble ic proless1onal nd technical men in the held or on th� Job Engine d1v1ded gradua� 11<:>ns are precise and clearly engra�·eci for lasting wear. in strongly sl1lched genuine lealher sheath, conveniently earned 1 n onc"s pocket Truly a versatile & m. scale supplied in various graduations to cover moat phas,is ol measurement.

No. 57. Screw Head Template 1 3 he•ogons, 1 3 circles, 13 cul outs ond 9 Jquore, 7 % " • 5"-.030 lhic\ $2.00

.c

ARCHITECTS" - OPEN DIVIDED No. 266-6 in. Divided: 1/e , I/• , 1'2 , 1, %, l/4 , l 'h , and 3" lo the loot.

ENGINEERS" CHAIN SCALES - FULLY DIVIDED No. 267-6 in. Divided: 1 0 , 30, 40 and 50 parts to the inch. (double numbered)

A good quality gr::!�:�g��r 1cale for bolh Collegiate and Vocational use. Made of choice bo:rwood neatly poli1hed to a natural finish and graduated clearly for preci1e mea1uremenl.

Heavier atyled conalruclion regular deaign.

OPtN DIVIDED ABCHITECTS' No. ZIZ-12 in. Divided, 3/32. 3/16, >/, , 'I,, it,. I, \\, ¥,, l l/1 , 3" lo the loot, one edge divided lo 16tba.

ENGINEEB.S' CHAIN SCALES - FULLY DIVIDED No. 213-12 in. Divided : 10, 20, 30, 40, 50, 60 parts lo the inch .

ALVIN

$. so

NO. 1 246 Canister witb shaker top (2" x 211, " ) N O . 1 247 I lb. conta i n e r with metal pour spout

No. 2300

PENCI L POINTER

$3.00

$.35 ea.

314'' x 1 0 yds.

'Ii " x bO yds. %" x bO yds.

I " x bO yds.

$. 3 5 EA. $ 1 .00 EA. $ 1 .20 EA. $ 1 .55 EA.

TRANSPARENT I R R E G U LAR C U RVES

Professional quality, .060 thick, hand finished acrylic. Individu­ ally wrapped.

"SUl'ER" l-WAY ,ocKET PENCIL SH.U '(NER �fay Be C o1 r,i e d In Your Pod•f, Pu11e, Or 8r,.fcue

• COMPACT

<>;:========='.'

• <>

No. 77R E L L I P S E M A S T E R Projections of 25°, 350 16', 450 and 60o. ·contains 60 ell ipses ranging in sizes from. · l/4"to 1 ·3/8". Each ellipse precision m illed to engraving machine accuracy.

Size 5" x 10·7/16". $2.50 THICKNESS .030

·•••••••••• -•••••············- ·· · •••••••

-<>�-------I <>c::::========>"n <>

-

,�----------.

.030" thick.

rti'j���������:;;_��

· · · ·!

• · ··•···· .• '"", --­ __ . . e . e • • • • • � .

Some as No. 422 except made of

Scale: I ' •" = l 'O" Size 51/4 " x 63/., " . Used for circles_. rec�angles, spacing, roof pitch gage, plum�mg fixtures, doors, kitche'n equipment, electric symbols, and stairs.

. . .. _. • • A _.

CLEAR plastic.

,...

$ 1 .00 EA.

Tips and Techniques

� � ­ · ·-

.. --

---

�-

•,..--...

N O . 3296 FLEXIBLE STAINLESS STEEL ERASING SHIELD. Made of the finut material .005" thick, highly polished, with 16 aperture1 of voriou, si.J,I", to allow oc.curate erarnrei. Si1e 2 1/i" x l l/,1 ".

SEMI-CIRCULAR AND CIRCULAR PROTRACTORS

Extra heovy .090 tronsporent plostic protractors with cut­ out cenler .and bev­ eled outer edge.

Accurate gradua­ tions printed be­ tween two lominat­ ed sheets cannot rub off.

PROFESSIONAL GRADE NO. '76 SEMI-CIRCULAR PROTRACTOR 6"· SI .00 ea. $ .30 ea.

NO. ]76 ••oTA•CTOR •..

... ... - • • • •... • • ----- - - •-. .•.. •-.. •••.. •••. ••••. ••..

-: .

JI' •10' .,. 40' 4S'

:

e

No. 2 0 1 DU-ALL ELLIPSE GUIDE

Contains 80 small ellipses from 15 ° through 60 ° . Milled from .020" matt finished green plastic. Size 3" x 5'h'' $1.85 ea.

DRAFTING AIDS Helpful Drawi ng Techniques

2

Simplifyi ng Drafting Practices

6

Protecti ng Prints and Drawi ngs .

13

Tips for Drawing Lines and Curves

16

Modifying Equipment for Extended Use

20

Getti ng the Most from Drawing I nstruments

27 1 956 - 1 957

A Reprint From NO. 1 248 $.65 EA.

:

n• w

·IXl·ALL ILLIN[ OUIO[

NO. L666

• CLEAN

1 .50

No. 4 0 1 Electronic Symbols Contains the latest revisions in Electronic Sym· bols, Milled from .020'� Mott finished green plastic . . Size 5 1/4 " x 9 'fi. . . $3.85 Ea.

VOLUME I

• RELIABLE

1et In plastic • Packed In oltractive lhree-calor carlon1 NO. 6132 $1.00 ea.

!

••••••... I

Size 4 \/7" x 6".

4330 DO-ALL TEMPLATE -

$1 .50 EA.

No. 1 35 Alphabet Template Block leften >/8 " High.

Size 61/4 " x 33/4 " , . . . . . . . . . . . . . . . . .

ERA SING �HI ELDS

STEEL

DUSTING BRUSHES

Canta=- 42-;;eZon ;;'ile�ir�s ;:;.1n;i'n sizes from 1/32." to 2" in diameter. Each circle size is clearly niarked; all hav� center guide lines. Top leading edge Qltemplate is 7" scale, graduated In 16ths. BOtUrm leading edge Is graduated .up to 18 centimeters. Right and left edg.es or template. contain lOths and 50ths engi­ neering graduations , Fine quallty matte finish non-glare tinted green vinyl plastic . . 030 thick.

Overall size 8" x 4 3/4". Individually packaged In polyethel}?ne sheath._ NO. 4 3 5 $ 1 . 00 ea ..

tic.

No. 30T

Packed 1 Doz. to a Box Individually enveloped.

NO. 306 Th, "Ev•lut" Multi-File. S in. lonq. l dul pencil le,d poinhr, eruer clean,, . tad lifter or h,ndy lethr open••· Pr.cliul end inde1huclible.

Economic,lly priced.

- - ·- - - - - - - -

Mode of GREEN tronsoorent oles·

TEMPLATE

I

.. tI

No. 3 f Electroneer Dtagramatic elements of eledronic and cathode ray tubes are provided and all t,lectronic syr.· bols. -4 % • • 6 % •-.0-40 thick $3.00

422 D DO-ALL TEMPLATE -

PLAN

MECHANICAL DIIAFTSNEN'S - OPEN and FULL DIVIDED No. 212X· 12 in. Divided: ¥. , l/4 , 1/,, 1/• , 1/J, I, SO. half and lull ..... $ 1 .:2s ea.

.,,

·,

NO. 445 - · $2. 50 ea. J

HOUSE

$.20 ea.

For cleaner drawings, sharper lines, and better prints. Ideal for preventing and removing soil on drawings. Ory cleans tracings and art work. Keeps drawings clean without lessening their sharpness. Recommended for cleanser of old dirty drawings . . . .

Draws circles quickly, easily, accurately. No. 445 circle master template contains 44 circles grouped In progressive sizes with Increments In 64ths, 32nds, 16ths and 8ths, 4ths and 1/2".

Circle diameter sizes from 1/16" tp 3". Four corners of template precision cut to give radii 5/B" , .3/4", 7/B" and 1" diameters. Fine quality matte Cinlsh non-glare acrylic vinyl plastic . 030 thick. Rigid, durable and shatter proof. Overall size of template 7" x 9 1/4". Precision milled circles with ailowance for pencil clearance of 1/32". Each circle size clearly marked; all have center guide lines. Assures neat accurate circles. Template Is supplied in sturdy card folio.

ilf�!

BOXWOOD WHITE EDGE - ENGINE DIVIDED flat. lour bevel Boxwood scale beautdutly hnished wit� embodied plashc edges A high grade prolessional and lechn1cal scale of unsurpassed workmanship Engine divided graduations clearly engraved lor eai;y lcg1bd1t y, durable construchon for lasting r;ervice .

ARCHITECTS - OPEN DIVIDED No. 250- 1 2 in Divided 1,, . 1/t . 1/i. I, 'I, . 1,, , ] If: . and 3" to the loot ENGINEERS ' CHAIN SCALES -·ruLLY DIVIDED No. 2 6 1 - 1 2 in Divided 1 0, 30. 40 and 50 parls lo the inch.

-�........ .

TRU, CIRCLE TEMPLATE GUIDES

NO. 440 LETTERING-SLOT-GUIDE Made of .060" thick acrylic material. 1/1", e a d 1 �'. �··�ir�1:·' q���s i� 5 ';i�es� r.��ru?:/�i� on leading edge. Durable, shatterproof, and 3 " 6 " transparent. Siz:e 41/1 x ,4 . $1 .50 EA.

MECHANICAL DRAFTSMEN"S - FULLT DIVIDED •110. 258-1 2 in. D1v1ded . full siz e, inches reading to 32nd1.

Full size, inches reading to 50th1.

NO. SR400 NO. SR400 1.4" thick. pla11ic bracket,. plain back.

ALVIN . . • Handy Drawing Templates

Copyright 1 956- 1 957 by The Penton P u b l ishing C o . , Cleveland 1 3 , O h i o

Select Drawing Scoles and Slide Rules

ALVIN

10l[W00D WIDTE EDGE - ENGINE DIVIDED Our finest profenional grade triangular Boxwood 1cale, of 1uperior workman1hip and appearance, facea completely embodied in while pla11ic for durability, engine divided for abarpneu of gradua\ion1, diviaiona ol precise accuracy .( with colored furrow, for quick choice of dHired 1cale, , improved dHign.

X-ACT 5 " POCKET S L I D E RULE

Machine divided prec1s 1 0 ·1 graduations deeply engraved with black and red scales. Fabricated of pure white Oivinyl Plastic dimensionally stable and resistant to acids, oils, etc. Complete 5" r u l e with scales K , A ,8, C i , C, D, S & T. Smooth riding Cursor, specia l l y designed chrome finish frame will not s l i p off rule. Furnished with leather sheath with simpl ified instructions.

NO. 222P

. . . . . . . . . . . . . . . . . . . . . .

1 0 " ALL-PLASTIC STUDENT MANNHEIM

fOI ,n,rc, HNCll lfTIUING OjJ(tlOIIUINl,"lf\lYH T11 SUlto'lla•••tft�IJ�,a" .,.,,,1 u�•• ro Al)CIEGHJKLMNt,, ,STUVW11Vl23-4�7e•tl * Al3CIEGHJKLMNI� � ,STUVWX'fZ23"1�i7••91.

$4.95 EA.

ABCHITECTS' OPEN DMDED No. z•1-12 in. Divided: 3/32, 3/16, 1/, . 1/, . 1/t , I. ¥., >/, , 1 1/1, 3" lo the fool. one edge divided to l6th1.

ENGINEEIIS' CHAIN SCALES - FULLY DIVIDED No. 241-12 in. Divided: 10, 20, 30, 40, 50, 60 parls to the inch.

l,1,1i11l,1,1,1,l,1i1,1rt1i1,1il,11i111li1,11111lt1,1iltl!L1ilwlilt!

Nos. 240 - 24 1 $4 .75 ea.

BOXWOOD WHITE EDGE - ENGINE DMDED

A very popular scale tor lhe Professional with oppos1le beveled edges SupplLed in polished ftntshed Boxwond with while gloshc edges Engine 01v1dcd graduations that are sharply engraved These scales are of a superior qualily i n hmsh and desion (double numbered) No. ZSS-12 i n. Divided full size, t 1 2·· ·.:. I It l inches lo ! 61hs. ( l f. ths acluall Holl size ( 6"' - � l lt.l inches to 1 6ths (32nda octuall.

NO. 360Y DO·ALL LETTERING GUIDE Three sins, '/1 ", 3/1&", an d 1/4 " upper case letters and numb ers with 1/1" lower case let­ ters, all on one quide. Size's 1 ¥1" x 9l,4" x .020". $2.60 EA. NO. 3605 Same as above with slant letters. $2.60 EA. NO. 260V Same as above without lower case . . . $2.20 EA. letters · NO. 2605 Same as No. 260V, but with slant . . , $2.20 EA, letters NO. 460V 31," Letters an d Numerals. . $1 .50 EA. NO. 560V 5h" Letters and Numerals $1 .75 EA. NO. 1 60G GrHk Lettering . . . . . . $2.50 EA,

$ 1 .95

ea.

10" ALL·PLASTIC STUDENT BASIC TRIG

ADJUSTABLE "A" SCALE

Ill--IJ<--0

.

--': 1�:�·l;· ;·;' 1' ' l.;· ;�·; I U.1 , , , . l.. .tl f, .,.l, I·.�.... . · :' �, - --''!c..'/'� ;�·,; !\;' ·,� L r-•,.....� , ...-�•r� 1

l

-SR-600NO. SR600 AdJu•table acalea divided Into degrees and minule1.

20" S "scale. AdJu1tabJe· cuu�r. Ideal tor all arlthmellc. ffiechanir:al and navigational problem,. $4 .9 5 ea.

10" ALL-METAL PROFESSIONAL LOG LOG

NO. SRl 3 1 1 Magnesium alloy core with white nllrale facing•.

Adjustable 2-color 1calea. Double cursor. C-D acalea on both aidea.

Sc�des: L-LLI-DF-CF-CI F-CI-C-D-LL3 and LL2 on one side in register with LLO <!ind LLOO-A-8-K-CI-C-D-S,ST and T on reverse side.

Complete with leatherene sheath $ 1 3.95 .ea.

" Cj) U I C· K L E E N " DRAFTI N G CLEAN I N G POW D E R

-.o3o thick s 1 .00 No. 50 Pocket Pal Useful circles, hexes, deltas and squares. Cul ouls scaled from 1 / 1 6" up lo 1 •. 3-5/16" x 5'

BOXWOOD WHITE EDGE - ENGINE DIVIDED rour bevel Pocket Scale, w:1 h plastic laces embodied ever sea soned Boxwood The ideal pocket scale. 1nciispens1ble ic proless1onal nd technical men in the held or on th� Job Engine d1v1ded gradua� 11<:>ns are precise and clearly engra�·eci for lasting wear. in strongly sl1lched genuine lealher sheath, conveniently earned 1 n onc"s pocket Truly a versatile & m. scale supplied in various graduations to cover moat phas,is ol measurement.

No. 57. Screw Head Template 1 3 he•ogons, 1 3 circles, 13 cul outs ond 9 Jquore, 7 % " • 5"-.030 lhic\ $2.00

.c

ARCHITECTS" - OPEN DIVIDED No. 266-6 in. Divided: 1/e , I/• , 1'2 , 1, %, l/4 , l 'h , and 3" lo the loot.

ENGINEERS" CHAIN SCALES - FULLY DIVIDED No. 267-6 in. Divided: 1 0 , 30, 40 and 50 parts to the inch. (double numbered)

A good quality gr::!�:�g��r 1cale for bolh Collegiate and Vocational use. Made of choice bo:rwood neatly poli1hed to a natural finish and graduated clearly for preci1e mea1uremenl.

Heavier atyled conalruclion regular deaign.

OPtN DIVIDED ABCHITECTS' No. ZIZ-12 in. Divided, 3/32. 3/16, >/, , 'I,, it,. I, \\, ¥,, l l/1 , 3" lo the loot, one edge divided lo 16tba.

ENGINEEB.S' CHAIN SCALES - FULLY DIVIDED No. 213-12 in. Divided : 10, 20, 30, 40, 50, 60 parts lo the inch .

ALVIN

$. so

NO. 1 246 Canister witb shaker top (2" x 211, " ) N O . 1 247 I lb. conta i n e r with metal pour spout

No. 2300

PENCI L POINTER

$3.00

$.35 ea.

314'' x 1 0 yds.

'Ii " x bO yds. %" x bO yds.

I " x bO yds.

$. 3 5 EA. $ 1 .00 EA. $ 1 .20 EA. $ 1 .55 EA.

TRANSPARENT I R R E G U LAR C U RVES

Professional quality, .060 thick, hand finished acrylic. Individu­ ally wrapped.

"SUl'ER" l-WAY ,ocKET PENCIL SH.U '(NER �fay Be C o1 r,i e d In Your Pod•f, Pu11e, Or 8r,.fcue

• COMPACT

<>;:========='.'

• <>

No. 77R E L L I P S E M A S T E R Projections of 25°, 350 16', 450 and 60o. ·contains 60 ell ipses ranging in sizes from. · l/4"to 1 ·3/8". Each ellipse precision m illed to engraving machine accuracy.

Size 5" x 10·7/16". $2.50 THICKNESS .030

·•••••••••• -•••••············- ·· · •••••••

-<>�-------I <>c::::========>"n <>

-

,�----------.

.030" thick.

rti'j���������:;;_��

· · · ·!

• · ··•···· .• '"", --­ __ . . e . e • • • • • � .

Some as No. 422 except made of

Scale: I ' •" = l 'O" Size 51/4 " x 63/., " . Used for circles_. rec�angles, spacing, roof pitch gage, plum�mg fixtures, doors, kitche'n equipment, electric symbols, and stairs.

. . .. _. • • A _.

CLEAR plastic.

,...

$ 1 .00 EA.

Tips and Techniques

� � ­ · ·-

.. --

---

�-

•,..--...

N O . 3296 FLEXIBLE STAINLESS STEEL ERASING SHIELD. Made of the finut material .005" thick, highly polished, with 16 aperture1 of voriou, si.J,I", to allow oc.curate erarnrei. Si1e 2 1/i" x l l/,1 ".

SEMI-CIRCULAR AND CIRCULAR PROTRACTORS

Extra heovy .090 tronsporent plostic protractors with cut­ out cenler .and bev­ eled outer edge.

Accurate gradua­ tions printed be­ tween two lominat­ ed sheets cannot rub off.

PROFESSIONAL GRADE NO. '76 SEMI-CIRCULAR PROTRACTOR 6"· SI .00 ea. $ .30 ea.

NO. ]76 ••oTA•CTOR •..

... ... - • • • •... • • ----- - - •-. .•.. •-.. •••.. •••. ••••. ••..

-: .

JI' •10' .,. 40' 4S'

:

e

No. 2 0 1 DU-ALL ELLIPSE GUIDE

Contains 80 small ellipses from 15 ° through 60 ° . Milled from .020" matt finished green plastic. Size 3" x 5'h'' $1.85 ea.

DRAFTING AIDS Helpful Drawi ng Techniques

2

Simplifyi ng Drafting Practices

6

Protecti ng Prints and Drawi ngs .

13

Tips for Drawing Lines and Curves

16

Modifying Equipment for Extended Use

20

Getti ng the Most from Drawing I nstruments

27 1 956 - 1 957

A Reprint From NO. 1 248 $.65 EA.

:

n• w

·IXl·ALL ILLIN[ OUIO[

NO. L666

• CLEAN

1 .50

No. 4 0 1 Electronic Symbols Contains the latest revisions in Electronic Sym· bols, Milled from .020'� Mott finished green plastic . . Size 5 1/4 " x 9 'fi. . . $3.85 Ea.

VOLUME I

• RELIABLE

1et In plastic • Packed In oltractive lhree-calor carlon1 NO. 6132 $1.00 ea.

!

••••••... I

Size 4 \/7" x 6".

4330 DO-ALL TEMPLATE -

$1 .50 EA.

No. 1 35 Alphabet Template Block leften >/8 " High.

Size 61/4 " x 33/4 " , . . . . . . . . . . . . . . . . .

ERA SING �HI ELDS

STEEL

DUSTING BRUSHES

Canta=- 42-;;eZon ;;'ile�ir�s ;:;.1n;i'n sizes from 1/32." to 2" in diameter. Each circle size is clearly niarked; all hav� center guide lines. Top leading edge Qltemplate is 7" scale, graduated In 16ths. BOtUrm leading edge Is graduated .up to 18 centimeters. Right and left edg.es or template. contain lOths and 50ths engi­ neering graduations , Fine quallty matte finish non-glare tinted green vinyl plastic . . 030 thick.

Overall size 8" x 4 3/4". Individually packaged In polyethel}?ne sheath._ NO. 4 3 5 $ 1 . 00 ea ..

tic.

No. 30T

Packed 1 Doz. to a Box Individually enveloped.

NO. 306 Th, "Ev•lut" Multi-File. S in. lonq. l dul pencil le,d poinhr, eruer clean,, . tad lifter or h,ndy lethr open••· Pr.cliul end inde1huclible.

Economic,lly priced.

- - ·- - - - - - - -

Mode of GREEN tronsoorent oles·

TEMPLATE

I

.. tI

No. 3 f Electroneer Dtagramatic elements of eledronic and cathode ray tubes are provided and all t,lectronic syr.· bols. -4 % • • 6 % •-.0-40 thick $3.00

422 D DO-ALL TEMPLATE -

PLAN

MECHANICAL DIIAFTSNEN'S - OPEN and FULL DIVIDED No. 212X· 12 in. Divided: ¥. , l/4 , 1/,, 1/• , 1/J, I, SO. half and lull ..... $ 1 .:2s ea.

.,,

·,

NO. 445 - · $2. 50 ea. J

HOUSE

$.20 ea.

For cleaner drawings, sharper lines, and better prints. Ideal for preventing and removing soil on drawings. Ory cleans tracings and art work. Keeps drawings clean without lessening their sharpness. Recommended for cleanser of old dirty drawings . . . .

Draws circles quickly, easily, accurately. No. 445 circle master template contains 44 circles grouped In progressive sizes with Increments In 64ths, 32nds, 16ths and 8ths, 4ths and 1/2".

Circle diameter sizes from 1/16" tp 3". Four corners of template precision cut to give radii 5/B" , .3/4", 7/B" and 1" diameters. Fine quality matte Cinlsh non-glare acrylic vinyl plastic . 030 thick. Rigid, durable and shatter proof. Overall size of template 7" x 9 1/4". Precision milled circles with ailowance for pencil clearance of 1/32". Each circle size clearly marked; all have center guide lines. Assures neat accurate circles. Template Is supplied in sturdy card folio.

ilf�!

BOXWOOD WHITE EDGE - ENGINE DIVIDED flat. lour bevel Boxwood scale beautdutly hnished wit� embodied plashc edges A high grade prolessional and lechn1cal scale of unsurpassed workmanship Engine divided graduations clearly engraved lor eai;y lcg1bd1t y, durable construchon for lasting r;ervice .

ARCHITECTS - OPEN DIVIDED No. 250- 1 2 in Divided 1,, . 1/t . 1/i. I, 'I, . 1,, , ] If: . and 3" to the loot ENGINEERS ' CHAIN SCALES -·ruLLY DIVIDED No. 2 6 1 - 1 2 in Divided 1 0, 30. 40 and 50 parls lo the inch.

-�........ .

TRU, CIRCLE TEMPLATE GUIDES

NO. 440 LETTERING-SLOT-GUIDE Made of .060" thick acrylic material. 1/1", e a d 1 �'. �··�ir�1:·' q���s i� 5 ';i�es� r.��ru?:/�i� on leading edge. Durable, shatterproof, and 3 " 6 " transparent. Siz:e 41/1 x ,4 . $1 .50 EA.

MECHANICAL DRAFTSMEN"S - FULLT DIVIDED •110. 258-1 2 in. D1v1ded . full siz e, inches reading to 32nd1.

Full size, inches reading to 50th1.

NO. SR400 NO. SR400 1.4" thick. pla11ic bracket,. plain back.

ALVIN . . • Handy Drawing Templates

Copyright 1 956- 1 957 by The Penton P u b l ishing C o . , Cleveland 1 3 , O h i o

ALVIN ... Lead Holders, Lead Pointers, and Refill Leads

..

1 Pen ... 6 Line Widths

TECIIA&IJAPII

FOUNTAIN PEN • Writing Ink • Drawing Ink • • India Drawing Ink • Waterproof Ink e

For drafting, lettering, art work and general writing.

Provides a continuing supply of ink thereby reducing the time now being taken bv continual refilling. This same time problem applies to freehand lettering, lettering with the use of guides, and also template work.

Enlarged View of non·slipping lock· clutch lead grip.

TECHAGRAPH. is filled directly from your ink bottle, and is easily cleaned.

• Reproducing • Ozalld • Blueprints • Etc.

Instantly ejects lead simply by pressing button at top of barrel ... upon release it automatically grips lead firmly and secures it at any desired position ..."positive-action-clutch" holds lead firmly and will not shear or weaken lead.

Non�rolling, form-fitting knurled shaft makes for easy handling. Hard rubber featherweight barrel assures perfect balance and years of service .. . and will hold any standard size drawing lead.

Knurled nickeled furrows complement the jet black finish and modern design . .. colored plastic washers instantly identify lead degree ... comes with or without pocket clip.

Holders supplied with lead in degrees B to 9H.

No. 5020, $1.35 each, $16.00 daz.

No. 5021, $1.45 each, $17.00 daz.

No. 50215 $1.45 each, $17.00 daz.

6 ;nches long 6 inches long With cli p Packet Model 5 in With clip

Flo(f)

Feather ol only

(IT f

NO. P395 ......... EA. $4.75 1.50

Point section only

AL VIN TECH-LETTER-GUIDES lettering is quicker, neater, more uniform with Alvin ..Tech-Letter Guides". Vertical letters, (upper end lower case) and numerals. Durable transparent green tinted plastic with raised aluminum metal edging for rigidity and to prevent ink smeors. For use with Alvin Techagraph Fountain Pens. Seven guides to a set. .NO. TG7\ LETTER GUIDE -SETf20.oo

Weight 1/, oz.

Unconditional Guarantee for Mechanical Perfectiqp the CONSTRUCTOR FLAT PROPELLING DRAWING PENCIL

Extended guide edge for straight edges and triangles assures extremely accurate work at high speed ...represents a new concept in drawing pencils ...sharp uniform lines can be urawn wilh even density ...flat ribbon lead in­ serts are only .016 thick and .047 wide and can be used to last fraction of an inch.

Excellent for block printing, drafting, graphs, charts, plans, accurate pencil work. ..,,,..-, Made of finest hard rubber for lightness and durability . .. tops arc stamped and -::=='i'��;ll� various colored rings are supplied for instant selection of different grades of lead // hardness ...form-fitting knurled shaft makes for easy handling. , I Especially designed for graphs, charts, plans, drafting. Assures clean hands, clean work. \ / NEVER NEEDS SHARPENING!

No. 5022, $2.75 each, boxed with a lube of 1 doz. leads, $32.00 doz.

Smoother, longer lasting PARAMOUNT-CONSTANT Flat Ribbon Lead Inserts: Degrees; HB, H, 2H, 3H, 4H, and 5H. I doz.leads to a tube

'

No. 5011, 35c tube, $4.00 doz.

State hardness when ordering.

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"Wii(p-

"KLEEN-POINT" POCKET LEAD POINTER NO. 5555, LEAD POINTER $1.95 each. $22.00 daz.

A convenient, handy, compact pocket poi;iter ...easy to operate . : . four tempered steel blades assure perfect, clean points every ti.m e ... graphic cup retains lead particles, and is easily removed for cleaning ... guide tube prevents snapping . . . non-rolling square design . . . made of durable anodized aluminum 34" thick, 2 '/2 • long ...a pointer for every­ one in the home, office, shop, school or field.

edge.

ALVIN'S "PARAMOUNT" REFILL DRAWING LEADS LEAD THE WAY

ALVIN'S NEW

NO. R555B, BLADES 25c set of 4, $2.75 doz. seh

Enlarged view

af the "CONSTRUCTOR" extended guide

Select from 18 degrees of hardness from 78 to 9H manufactured with utmost care ...choice top grade imported refill drawing leads of superior quality and drawing strength ... dense, uniform lines guarantee perfect drawings and sharp blueprints without inking.

Standard diameter, pointed leads, 5 inches long, fit any standard make of lead holder or artist pencil.

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I

No. 5018

No. 5018, $1.00 per tube 1 doz. packed refill leads, $11.00 doz. tubes PREPARED CqMPASS LEADS IN TUBES

made especially for all types of drawing instrumcuts ... standard diameter, 11/.i" long, with chisel sharp points ...neatly packed in clear plastic tubes.

D_egrees: HB, H, :ZH, 3H and 4H

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No. 5112, 1 doz. leads per tube, $1.75 doz. tubes PREPARED COMPASS LEADS IN BULK

No. 5144

Ideal for schools, industries and commercial use . for economy and compact usefulness. Packed 144 leads in wooden box with slide top.

Degrees: HB, H, 2H, 3H, and 4H

No. 5144 ,

$1.00 per box, 1 degree only per box