US1564879A

US1564879A - Copy-holding pointograph

Info

Publication number: US1564879A
Application number: US583307A
Authority: US
Inventors: Mathews Louis Thomas
Original assignee: POINT O GRAPH MACHINE CO
Current assignee: POINT O GRAPH MACHINE CO; POINT-O-GRAPH MACHINE Co
Priority date: 1922-08-21
Filing date: 1922-08-21
Publication date: 1925-12-08
Anticipated expiration: 1942-12-08

Description

Dec. 8, 1925., 1564,@79

L. T. MATH E ws Y yCOPY HOLDING POINTQGRAPH Filed Auge 21, 1922 2 Sheets-Sheet l ffl/W" ff Suva/M4704:

LayzTMAmrya Dee. 8,1925. 1,564,819 v l L. T. MATHEws COY HOLDING POINTOGRAPH Filed Aug. 21. m22 2 Sheets-Shea; 2

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,Patented Dee. 8.1925.

UNITED STATES PATENToFFlcE.

LOUIS THOMAS MATI-IEWS, OF SAN ANTON'IO,`TEXAS, ASSIGNOR TO POINT-OGRAPH MACHINE CO., OF DOVER, DELAWARE, A GORIORATION OF DELAWARE.

CCYY-HOLDING POINTOGRAPH.

Application led August 21, 1922. Serial No. 583,307.

To all lwhom it may concer/n:

Be it known that I, LOUIS T. MATHEWS., a citizen of the United States, residing at San Antonio, in the county of Bexar and State of Texas, have invented certain new and useful Improvements in Copy-Holding Pointographs, of which the following is a specification.

My invention relates to copy holders or pointographs and indicators and shifting mechanism therefor, and the object is to provide simple and practical apparatus for holding documents to be copied and for indicating the particular line and word to be copied and for shifting the indicating mechanism automatically, and to operative con-V nections between said devices and the typewriter carriage or other movingpart of a writing machine wherebyI the devices will be automatically adjusted and operated by moving parts of the typewriter or other writing machine so vthat the indicator will move step by step'to the next word, letter or ligure to be copied and thev line-spacing bar will be automatically shifted from line to line; Means are also provided for changing the beat or travel of the indicator to y longer or shorter lines so that the indicator may be madeto point to dierent sizes of type or differently spaced letters or figures and also differently spaced lines. I do not limit my invention to typewriters as the devices can be used with writing or copying machines generally. It is apparent that these devices can be used with typesetting or linotype machines. n i

Other,objects and advantageswill be fully explained in the following description and the invention will be more particularly pointed ont in the claims. i

Reference is had to the accompanying drawings which form a part of this application.

Fig. 1 is a perspective view of the machine, showing ,the face'and one side. Fig. 2 is a rear .view of the machine. Fig.l Sis a detail view ofthe line spacing devions with means for adjustin the line-spacing de; vices. Fig.` 4 is Aa ace view of thedrive wheel. Fig' is a face view of one of the line spacing wheels, Fig. 6.is' an enlar yed view `oflthel rear faceV of the machine, s own in perspective.A Fig.- 7 is a detail'view, of the .'step by step 1control bar and co-operating parts.' .'Fig. .sall .,nlmyged detail View pf the line spacer and the co-operating parts. Fig. 9 is an enlarged plan view of the same, Fig. 10 is a detail view of the barrel spring for moving the letter indicator. I

Similar characters of reference are used to indicate the same parts throughout the several views.

The improved pointograph is provided with a copy-holding frame 1 whichis a boxlike structure and the, exterior of this frame constitutes a bearing face 2 for'the papery or sheet which has the -matter lto be copied. The frame 1 is supported on bars 3I and/4 which` are riveted to the upper fiange 5 and the lower flange 6 of thelooX-like frame 1. Angular bracket frames 7 are riveted to the

`bars

3 and 4 and constitute thesupports for v'the machine. The sheet of paper which con-k tains the' matter to be copied. restsi on the face 1 of the frame.V The paper isheld on the face by a spring-controlled bar 8.V This bar is bent U-shaped with the legs 9 which project through the frame 1 and spiral springs v10 are confined on the legs 9 and tend to keep the bar 8 held in close contact with the lface of the frame 1 iand so adapts the bar8 to hold sheets of paper on'the face of the frame 1.

The machine is provided with a line marker 11 and the line marker or spacer 11 carries an indicatory 12. Means are provided for moving the markerV and the indi# y cator both longitudinally and transverselyk on the face of the bearing face 2. y The machine is driven by a ychain or cord 13 which is provided with a hookv 14 for engagingv some part of a typewriter carriage (not shown). The chain 13 runsover an idle pulley 15 which is mounted in a bracket" bearing 16 yand then down to the drive wheel` 17 and is attached thereto, the chain 13 running or vlying in a groove 18 in the wheel 17 and being partly Y wound thereon; The wheel 17 is a barrel spring wheel, having barrel spring 19 which has one yend attached .to the outer rim 17 andthe inner end at.-

tached to a bar 20 which is attached rigidly to tho flange 21 of the frame. The chain`13 runs under a` pulley 22 which is journaled in a bearing 23 which may be integral with' the flange 6 of the frame. The wheel 17 is rigidwith shaft 24 and'drives'V this shaft. A stepped wheel 25 is rigid with the shaft 24. The different steps constitutepulleys of v.different diameters forvarying the travelpf 2-e'nd flanges 5 and' Lon the 'frame 1.

the indicator 12 and line space-r band 11. rllhe Wheel rotates with the shaft'24 and is prevented from turning on the shaft by a -key Way and a groove longitudinally of the shaft so that the Wheel is movable axiallyv on the shaft to permit line spacing A bracket yoke 26 is mounted on the

kshafts

24 and 27 and is movable axially on these shafts. A spool 28 is provided With a shaft which is journaled in the yoke 26. One end of the line spacing v"band 11 is attached to the stepped whee'l`25 and the other end is attached to the spool '28. VThe band V11 runs` over idlers 29 Which are journaled in brack- -et bearings v30 Which-serve as guides and antifrictio'n devices. The bracket bearings 30 are adjustable and are held at dilferent adjustments -on the yoke 26 by set screws or bolts 31. l The object of the 'bracket bearings 3() is'to'make provision for documents or `l`books of-'di'lferent thicknesses vto be placed on the frame 1 Vto be copied.

The sha'iits'24 and 27 are-journaled in the The yoke26 fis 'imovable axially on the shafts 24 Y and 27 and jis made Vto move von vthese 'shafts vgroove A spring actuated bar 3G is slfidably mounted on the yoke 26 and held :in -place 'by keepers B7 land this bar ris prolvidedavith ya tongue 38 which projects in the groovei. Then lthe'shaft 27 is rotated, the groove With bar '-36 With tongue 3S,

causes the carriage'or Ayoke 2G and the line spacer 11 and indicator 12 to move from `the upper lpart of thelframe 1 to the lower part`r step'by 'step'for' the linespacing. To

vmove "the line spacing` mechanism back to sthe upper part `of the 'frame '1, draw the tO'ngueBS from: theigroove 35 andinove the mechanism lmanually back'to the upper part ot the frame. The moving' ot the indicator 12 is'con'trolled as to amount ofspace moved Vatk each vstep by ythe typewriter carriage. i The tension ot thefband 11 is'controlled and .the slaekftaken up by a barrelspri'ng 39 which cooperates Witht-he shaft 40 ot' the vWheel llVheel 17 has ratchet teeth 40. rThe Wheel 33 carries. a dog 41 which is con- Itrolled by a spring-42 Which is attached to Wheel 33. The spring 42 holds the'dog 41 projected "through an opening in Wheel 33 and linto'.engagement With the teeth -40.

leo

Wlhen the Wheel 17 is driven, i't'carries With it Wheel Beuntil a dise'ngaging device 48 liftsithe dog,r 41 out of engagement With .the

' teeth 40.

4'VV'hen'the Wheels

17 and 33 are moving together, Wheel 32 is being` driven Vwhich causes shatt'27 to turnand move they line spacer :.11 therequired distance. 'As

soon as the dop,` V-41 is disengaged `from the lteeth 40, Wheel 33 stops and consequently starting point, the dog- 41'is in position` to be druiven bythe ratchet 4t). The operations are repeated iin the same manner.

The disengaging device 43 is mounted on a gaging 'disk 4G and the distance to bel traveled er turned by Wheel' 33 .is controlledl by position of disengaging device 423 on the disk-45. The disk'46'fisiheld in position by Ia set screw `47 which is adjustable in a curved slot in the frame' 6 of the machine.

The stepped Wheel 25 `is moved to 'dilierent 3positions by an adjustable bracket 47 to bring any one'of the steps in alignment With the giride'pulley 29. y

The variations areshoivn'iln Figs. 6 and 8. 'The ypreferred 'form of "the device is shown in Figs-`2 and 9. The line spacer 11 is preferably av continuous band land Jwhen different steps onthel Wheel 25 'are used, the slack taken up by pulleys 48 'and 49, the pulley 49 being` vmovable and controlled. rby a spring-controlled `yoke bearing l50.

The shaft 27is provided with va handwheel 5 11for 'adjusting'l the shaft independently Aofthe operatingunechanism for adjusting theline Vspacingmechanism to the exa-ct position required. What I claI1n,Ais:-,

1. A copy-holding pointograph comprising af frame, shafts j ournaled :longitudinally Viii-said 1frame,'a yoke movable on said shafts,

a line spacing band carif-iedby said yoke and transversely disposed` on the 'face of said frame and an yindicator carriedby said band, and gearing for causing said yoke to move step by step longitudinallyon said shafts. i

V2. A copy-holding pointograph comprisinga frame, shafts journaled :longitudinally 11n said frame, one shaft being a driving shaft 'and the other being a spacing shaft a yokemovable on'said shafts and a spring- 'actuated dogcarried saidyoke and e`ngaging said spiralgrooveJ-for moving said .by saidband,'thergearingfor vsaid band be- 'Ing' operatively connected to said driving shaft, a 'drive ,pulley on said *driving shaft provided' 'with 'a barrel spring 'for returning and provided Withv a spiral groove therein, .120

said shaft to starting point, and a chain operatively connected to said pulley and to a moving part of a Writing machine to vbe moved step by step by the Writing machine.

3. A copy-holding pointograph comprising a frame set at an angle, a driving shaft and a spacing shaft journaled longitudinally in said frame, a yoke movable on said shafts and a spacing band operatively connected to said yoke and extending transversely on said frame and an indicator carried by said band, gearing Jfor said driving shaft operatively connected to a movable part of a Writing machine for driving said spacing band step by step, and gearing actuated b-y said driving shaft gearing for driving said spacing shaft intermittently for moving said band from one line to another.

4. A copy-holding pointograph comprising a frame having an inclined face7 a driving shaft and a spacing shaft journaled longitudinally in said Vframe, a yoke on the back of said machine movable on said shafts,

a stepped gear wheel rigid With said driving shaft, a re-Winding gear Wheel carried by said yoke, a spacing band operatively connected to said Wheels and disposed transversely on the face of said lframe and provided With an indicator, said spacing shaft having a spiral groove therein and said yoke carrying a spring-actuated dog adapted to engage said groove for moving said yoke when said spacing Shaft is driven, driving gear for said driving shaft operatively connected to a moving part of a writing machine for causing a step by step movement of said spacing band, and gearing operatively connected to said driving gear and 'to said spacing shaft and timed to. drive said spacing shaft just after said indicator has traversed the face of said frame once, said rewindiug Wheel being adapted to move the indicator back to starting point.

In testimony whereof, I set my hand, this 4th day of August, 1922. i

LOUIS THOMAS MATHEVVS.