US1140170A - Pattern-perforating. - Google Patents

Description

f. M. L ASERSON. PATTERNPERFORATING IAPPIUQATION man Nov. 5. 191g,

' Patcnteda May 18; 1915,

' fa SHEETS-SHEET. 1

I I 0000000000000 I F. M. LASERSON.

PATTERN PERFORATIIJG.

APPLICATION FILED NOV. 5. 1912.

Patented May 18, 1915.

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;F. M; 'LASERSONyjj; PATTERN PERFORMING},

Ammo: m'sn' News; 1912, r

= Patented May 18, 1910.

e SHEETS-SHEET a F. M. LASERSON.

PATTERN PERFORATlNG.

APPLICATION FILED NOV. 5. 1912.

4 6 SHEETS-SHEET 4.

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Patented May'18, 1915.]

; PATTERN PERFORMING. APPLICATION FILEDNQV, 5, 1912.

Patented M@ 18',19 15.

F. MQLAISERSOINI.

I PATTERN PERFORATING. r I APPLlCATION FILED NOV. 5. W12.

Patented May'18, 1915 6 SHEETS-SHEET 6- TED erases FREDERICK MAURICE LASEESON, F MANCHESTER, ENGLhNE.

PemERn-Pnarona'rmo.

Specification of Letters Patent.

I ?atentedill l'ay ie, 1915 application filed: November 5, 19-12. @rial 1%. teases.

To all whom it may concern:

Be it known that I, F REDEBICK MAURICE LASERSON, a subject of the King of Great Britain and Ireland, and resident of Cheetham Hill Road, Manchester, England, have invented certain new and useful Improvements in Pattern-Perforating,of which the following is a specification.

This invention refers to and consists of a self-heated perforating hand tool fnr use in the production of stencils as used by clothing and other garment manufacturers in the marking of cloth preparatory to cutand its teeth resembling an ordinary patparticularly designed. Fig. 4

tom tracing Wheel. at their extremity to the shape and size of the intended perforations. The tool also comprises a handle by which the Wheel is axially supported and by Which it may be traveled over the material to be perforated.

Forming part of or fitted to the handle are means for connecting it to a gas supply pipe, and also means for producing a- Bunsen burner, the burner tube extending through the handle, and the ignition end lying at a point adjacent to the periphery of the wheel. 0n gas being supplied and ignited the flame plays on to and heats the Wheel to incandescence. In using the tool the teeth of the wheel are traveled over and simultaneously gently pressed upon thepaper, When, owing to the heat, perforations are formed in the paper. In lieu of being heated by gas, the perforator may be heated by spirit,'or electricity.

Upon the accompanying drawing," Figure 1 illustrates a side elevation of the improved tool. Fig. 2 illustrates a front or end View. F 3 illustrates a plan partly in section. Figs. 4: and 5 illustrate wheels with various forms of teeth that may be used. Fig. 6 illustrates a plan of a stencil for the production of which this invention is more illustrates a The teeth correspond side elevation (partly sectional) and Fig. 8 a front or end view (also partly sectional) of another form of the improved tool. Fig. 9 illustrates a side View, and 10 a sectional plan of another form. of the wheel end of the tool. Figs. 11 and i2 illustrate a side elevation and sectional plan respectively of a further form of the Wheel end of the tool. Fig. 13 illustrates in section a modification of the Wheel. Fig. 14 illustrates a side elevation of an arrangement whereby the periorations are formed by the reciprocations of a single tooth. Fig. 15

illustrates a cross section. of a further modlfication. Fig. 16 illustrates a longitudinal section of the improved tool when heated by spirit, such as benzin. Fig. 17 illustrates a side elevation (partly broken away) and Fig. 18 a transverse section of the improved tool adapted to beheated by electricity. 1* Fig. 19 illustrates a side elevation (partly broken away) and Fig. 20 a'transversesection of an alternative arrangement of the v electrically heated tool.

As shown, a is the Wheel, which ispnefer ably made of steel or bronze. Itsteeth a' correspond, as aforesaid, in size and shape to the intended perforations. stitntion of Wheels with teeth of other sizes and shapes the perforations will vary. 1

By the subb. is the tool handle preferablymade of i Wood or other light and suitable material and shaped to allow of being easily grasped in the hand. The handle is hollow and through it passes a metaltube 0, hereinafter tern'aed the burner tube. This tube extends beyond the-end of the handle, and on to its end is secured a forked metal part d; In

the extremities of the forks of such am are holes for the reception of a spindle 8 forming an axis for the'wheel a about which it freely rotates, the spindle being preferably held rigidly relatively to the part 05 nuts f, f. Between the part d and the handle I;

is a metal sleeve 5; in which are perform tions, the ends of the sleeve being held con-= centric by means ofa metal end collar .5, and recessed metal dish 21. I

T18 interior of the handle 5 is made larger at the eminent the sleeve 9, and the space thus formed is filled with asbestos The purpose of the sleeve g and asbestos is to isolate the handle item the heat of the,

wheel g. and thus keep it cool; For a similar purpose there may be a sheet metal guard or shield 70. At the other end of the handle is a metal mount Z with perforated sleeve m and gas-regulating valve 71.. Forming part of, or connected to the mount 6 1s a tapered connecting nipple 0, these parts be ng sunllar to an ordinary gas-supply fitting. By

'means of the nipple 0, an india-rubber or other flexible tube may be connected to. the

tool, the other end of the tube being connected to any convenient gas supply.

The burner tube 0 extends from the metal mount Z to the part d, and thus, on screwing up the part (13 against the .shield ft or collar 71, the sleeve, collar, disk and slneld are all held tightly together. As shown in Fig. 3,

the burner tube ends immediately behindthe wheel a, therefore, on the tool be ng supplied with gas and air and a light being applied at the wheel end of the tube a flame is projected on the wheel, see Fig. 3. With,

the wheel fully heated and rendered incandescent, which takes place in a few minutes, the tool is taken hold of by the handle ('2 and the wheel a placed teeth downward on thepaper to be perforated. The wheel is then traveled at a moderate speed over the paper, a slightpressure being applied to' insure of the proper contact of the teeth with thepapcr. Owing to the heat of the wheel the paper is rapidly-burnt through at each point touched by the. teeth, each of which forms a sharp well-defined perforaon each side of the whccL- For a like pur pose, the wheel maybe inc'losed on each side by a side shield composed of sheet metal or wire gauze. lntraveling the wheel over the lines marked on the-paper which often he at sharp angles to each other or comprise small curves, it is desirable that the wheel a be free to'readily follow the angles or curves or change the direction of movement without the handle 5 of the tool being of necessityhcld in line with the plane of the wheel. To'allow of this the wheel is carried by a swivel carrier (6 sec l igs. 7 and 8,

the carrier being tubular to convoy the gas,

etc, to the wheel and the bnndlh a being preferably arranged horizontally and conncctcd by a tube (1 to a vertical tube or gas mixing chamber 7), the lou'or end ol' which forms part of the swivel joint; ln such tube 7) are holes for the ingress of auxiliary air and surrounding snob tubo is a por'l'drutcd sloovo 71" for regulating tho admission of the air to tho burner lube.

[For the purymso ,ol inolosingr tho fame as much as possible and thus reduce tlleq'islt' of fire, the wheel may hemade to the section shown in Fig. 8, "and the gas may issue from openings in that side of the enlarged and of the carrier (1 next the wheel. 'lhe wheelin this case will he provided with a long. hub part and be free to rotate about spindle or axis 0, rigidly secured to the ear rier.- For the purpose of strengthening the connection between the tube 1/ and handle 7; a short bar or link 6 may be: provided.

Instead of being arranged horizontally the handle 6 may be arranged vertically and in such case may be connected directly to the tube Z).

Fig. 9 shows a slight modification of the gas mixing chamber which is formed c0ni-" cal and provided with air holes and a regulator for such holes at the top end. This same figure, in conjunction with Fig, 10, also shows how the carrier a? may close in the two sides of the wheel a, the teeth of the wheel alone protruding and the fiamebeing' entirely screened from View. The gasmlxvture, which issues through holes a, is supplied under pressure.

In Figs. 11 and 12 the wheel a is inclosed The carrier,

by the carrier on both sides. which is inade'in two parts, is shaped to extend into the recesses onthe sides of the wheel, see Fig. 12, and except for the space for the wheel is closed in on the under side.- On the top side the carrier is open to allow the gas to burn. To facilitate the manipulass a tion or guidance of the tool when passing over the sharp curves, or when suddenly changing the direction of movement, the

tool maybe provided with an attachment,

such as (7 shown in Fig. 11, and consisting or a rod with forked, end detachably connected by screws '1' to the carrier and provided with awooden handld at its 'upper end. By means latthis attachment the user may use both hands, one for grasping the tool and the lines. v

As shown in Fig. 13 the wheel a may be made hollow and the gas mixture (uhder pressure) he conducted into it through a other for guiding it along the hollow axis, holes .9 being provided for the escape of the products of combustion.

Fig. 16 illustrates the tool as adapted to be heated by spirit, such as bcnzin. In the handle 7) or tube r: is a filling of cotton wick .'1: -:1nd the end oi the burner tube 0 is closed excl-pt for asmall hole 0'. Over such end may be a. cup or nozzle 7/ by the heat of which, after starting the tool, the spirit will constantly vaporize. At the other end of the handle is a cap 7/ and valve 1)", this lat tor being for mliovin'g pressure. By removing the cap 7) and pouring spirit into the bundle, it isrcadily ubsorliod and held by tho wick. lVbrn [be wit-leis fully charged tho cap I)" is replaced. The burner end of the tube is lbcn'hcatcd in a lame until'the spirit issues through the hole a in the form of vapor. .VVith the vapor ignited a hot flame is delivered on to the wheel a which rapidlybecomes incandescent. While showing the tool a adapted to be heated by gas orspirit, it will be understood that it may be heated electrically. In this, as in other connections, the wheel .may be other than metal. Figs. 17 and 18 illustrate one example of the electrically heated tool, the arrangement consisting of a hollow wheel madein two parts a a. and held together by insulated cross bolts a7. The two parts of the wheel arealso insulated from each other where they meet by sheet mica: 1

lVithin the wheel (the interior of which is lined with thin sheet mica) is a ring of mica z, see Fig. 18, while around such ring is wound platinoid or other suitable wire .2. One end of this wire passes through the mica lining half of the wheel, while the other end also passes through the mica lining and is connected to the other halfof the wheel, By means of a divided axle e, the wheel is rotatably connected between the forks of t. i

carrier (Z, which is-also in two parts insulated from each other and held together by bolts d. Upon the carrier are terminal screws (1*, d, one for each part by which flexible conducting wires from an electric generator may be connected to the carrier. lVith the current turned on, the wire a becomes incandescent, and thewheel heated to incandescence. I

Figs. 19 and 20 illustrate another example of the electrically heated tool. The car rier d is made with a disk-like part d of similar diameter to' that of the wheel and near its con er is provided with a boss (F. In this boss is 'rotatably mounted theaxis of the wheel 6 which is held to the 'carrier by washer and nut. Encirclingthe boss (Z and fixed to the (girrier dby screws cl is a ring of quartz or compressed asbestos 2 Coiled around this ring is a platinoid or other suitable wire 2', the ring being of such a width and diameter as'to cause the wire to lie close tov (but not touching) the interior of the wheel. The ends of the wire pass, through holes in the ring and carrier and are respec tivel y connected to the positive and negative conducting wires of a generator. With the current turned on, the wire 2 becomes incandescent and the wheel is heated to candescence.

In Fig.- 14 the perforator is in the form of a needle or single'tooth, and the action of the perforator is regulated electrically. That is to say, the perforator is supported ina frame b, a spring If serving-to hold its lower end normally just clear of the paper. By means of a bevel-ended lever b engaging a beveled project-ion Z2 on the of the wheel and is connected to one.

perforator, and also an armature carried by thelever and an electro-magnet b" carried the magnet windings, and is preferably ef fected by means of a ball 2 provided with small protuberances upon its surface and free to roll.in a housing 71 secured to the frame b. I t is also effected by a spindle" 2 insulatedfrom the housing, and designed on a protuberance on the hall pressing ,it upward (against the resistance of a spring 2) to bridge across the terminals of the two conducting wires of the magnet 7) and thus complete the circuit by which the magnet is energized, the armatureattracted, and the perforato-r. rapidly lowered into contact with the paper, the circuit being broken as soon as the protuberance passes the spindle 2, and the perforator rapidly rising under the action of the spring 7/. Immediately after i the perforator meets the paper the lever i stop pin 71" serves to limit the downward movement of the armature, while a spring I) returns the lever after the armature leaves the maguetpoles. 1 The perforator will be heated electrically,- or by gas, or spirit in like manner to the wheel.

As shown in Fig. 15, the wheel (a may be heated by branch jets w? from the carrier, and for the purpose of preventing the flame reaching the paper the heel may be formed with flanges 1.0. For keeping the teeth or projections of the wheel free from ash, a small metal brush or scraper 111 may be provided which will bear'on the teeth of the wheel, see Fig. 15.

\Vhat I claim is 1. A'hand, pattern perforating tool com-' prising a wheel formed with teeth corresponding to the required perforations, a frame in whiclrs'uch wheel is rotatable, a handle for the same by which the said wheel is guided in the required dirccti ms to follow lines 'inaikcd on the material to he perforated ar .d, means associated with. the handle frame and wheel for continually heating the latter to incandescence.

2 Ahand tool for perforating stencil material by burning. comprising a perforater, means for holding and guiding the perforator, and means integralwitl'l the tool for enabling the perforator to he continually heated to incandcscence and a handle for the complete tool, such as to permit of follow lines marked on the material to be marked on the stencil material and producing,

" perforated and means spaced. from said wheel to heat the teeth thereof to incen l "perforations will descence, whereby asthe wheeltravels over the material soymarked, sharp and clear-cut be produced therethrough. 4. A hand perforating tool forperforating stencil materials by'burning, compristhe said line-to rapidly produce a consecutive series of perforations, means for ening a rotatable perforator movable along a line marked on the stencil material and c079- tacting with the said material at points 111 abling the ,perforator to, be continually heated to incandescence and a handle capable of angular movement at any one of said points of contact, and thereby to vary the direction .of movement of the perforator to r the material, comprising a perforator ed to rapidly and intermittently make con-' permit the same tobe accurately moved along said marked lines.

5. A perforating I ing stencil materials along lines marked on adapttact with and burn perforations without bur in the material as 1t is traveled along the lines marked on the material, means for holding and guiding the perforator and means carried by the tool for heating the perforator to and maintaining it at 1ncandescencc whereby the material will be per-'- forated by contact, thereby avoiding the exertion of undue pressure.

(3. A hand. perforating tool for perforat- 4 ing stencil materials by burning, comprising a wheel formed with teeth corresponding to the required perforations, a tubular the required perforations, a,

' ing to hand tool for perforat handle and a forked carrier for wheel,

the wheel being axially mounted between the a I forks of the carrier, and means within thehandle for enabling the wheel to'becontinually heated to incmndescenee,1 whereby the.

material will be perforated by contact. 7. A hand perforating tool for perforating stencil materials by burning, comprising a wheel formed with teeth correspond V the required perfozations, a tubular handle and forked carrier ,for such wheel, the wheelbeing axially mounted between the forks of the carrier, and means associated with the handle and carrier for heating the, teeth of the wheel to incandescence where bythe material'will be perforated by the guiding of the wheel thereover; 1

8. A hand perforating tool for perforating stencil materials by burning, compris-Q ing a wheel formed with. teeth'correspond: v

ing to the for directing the movements of the wheel in the required direction, and a carrier for such wheel, said, carrier inclosing the sides of-the wheel and means carried by the tool for enabling the wheel to be continually heated to incandescence at the peripheral portion thereof.

required perforations, a handle 9. A hand perforating tool for perforat ing stencil materials by burning, comprising a wheel formed withtecth corresponding to the required perforations, a hollow handle V ands forked carrier for such wheel, a tube extending through the handle and lying near to thevwheel at one end, said tube hav ing means to admit air thereto and fuel supply means to supply fuel to mix with said air to cause a flame to issue from the tube against the teeth of the Wheel for heating the same to a state of incandescence."

In witness whereof I have hereunto set my hand in the'presence of two witnesses.

FREDERICK MAURICE .tisrason.

Witnesses Finn J. MEREDITH, C. PENNINGTON. l

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