US1216251A - Type-writing machine. - Google Patents

Description

C. H. BROWN.

TYPE wmmva MACHINE.

' I APPLICATIQN HLED FEB- 9, I914- 1,216,255 1 Parental Feb. 13, 1917.

2 SHEETS-SHEET l.

C. H. BROWN.

TYPE WRIHNG MACHINE.

APIUCATION FILED FEB.9, x911. 1,216,251. 7 V Patented M1113, 1917. 1

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

onannzucn H. BROWN, or CHICAGO, ILLINOIS, assmnon BY MESNE ASSIGNMENTS, 'r'o uimn'nwoon COMPUTING MACHINE company, or new Yomc, n. 2., A comm- TION 0]? NEW. YORK.

To all whom'it may concern: Be it known that I, Cnaiusnoa H. Brown, a citizen of the. United States, residing in Chicago, in the county of Cook and State of :Illinois,have invented certain new and use-\ ful Improvements in .Type-Writing Machines, of whichthe following is a specification.

This invention relates to paper feeding and controlling devices for typewriting ma; chines, and particularly to tally strips and means for feeding the same in con unction.

, unction with the line-space mechanism for the platen. As the tally strip is wound on the receiving spohl the diameter of the roll on the spool is gradually increased, and as the angular rotations imparted to the shaft carrying said spool remain constant, the

spaces between the lines on the tally .strip, are graduallyincreased to an undesirable extent.

. object of the present invention is to overcome said objection, and to this end provision is: made for adjusting the line space mechanism for the tally strip so that asf'the diameter of the receiving spool in- .creases, the line-space mechanism may be adjusted tdjfreduce. the distances between .consecutivelines and thus secure a practiqeally uniform .s pacing.

features of, this invention are the Other' lp rovision- (it simple andcompact arrange ment of the lily strip mechanism in which v thejreceivihgjspool is closet-o the platen, and

may be, quickly and easily removed or replaced, and iii which the tally strip mechascar y qffl flndefwoodtypewriti ng machinerand nism is furt er adapted to be readily at tached to standard. makes of machines.

The tally may be'supplied from spool mounted on the paper, shelf at the rear 'of thefplatenpmnd the tally strip may extendf 'downward behind and beneath the paper shelf aroimdthe platen and upward of. r the printing point,-"and"thence to a 1': giving spool which maybe fixed to a stair? located overlhe platen and extending longitudinally "thereof. I The platen may be F e usual line-space mechanism TYPE-WBITING MACHINE.

Specification of Letters Extent. Patented Feb. 13, 1917. Application filed February 9, 1914. Serial in. 817,473.

nism, 'the la! ter plunger carrying a pawl to rotate a linz-space wheel, said wheel. connected to a g ear running in mesh witlr a pin ion on the s raft carrying the said receiving spool. The auxiliary line-space mechanism may be adjl sted bya lever carrying a cam to hold the pawl off the ratchet wheel, said cam adjustable with the lever to vary the point at which the pawl engages the ratchet. r. aid adjusting lever may carry a pointer working 0v :1- a. scale to indicate the extent the receiving spool will be rotated by each line-space operation. may also be set to hold the pawl ofi' the ratchet and prevent the operation of the auxiliary li 1e spacer. The shaft carrying the tally str: p receiving spool maybe quickly limited in i1 suse to' winding a tally strip on a receiving spool 01' roll, as such mechanism will drive the roll whether. the worksheet is wo 1nd thereon or merely advanced thereby.

Other, features and advantages will hereinafter app ear.

In the ac companying drawings,

The adjusting lever Figure 1 is a perspective view, partly in section, showing the invention applied to an Underwood typewriting machine, the inelosing casings or coversfor the line-space mechanisms being removed.

. Fig. 2 is a perspective view-of the adjuster and indicator for the auxiliary line spacer.

Fig. 3is a sectional elevation view of the mechanism shown at Fig. 1,,but looking in the ,opposii e direction.

Fig. 4 is a detall perspective view of parts i ofthe aux iliafyjline spacer. v

Figs. 5, i "andl are detail views showing the auxilia j'ylines'pacer, Fig. 5 showing the adjustable cam positinnedto allow the rotation of the line-space Wheel through a comparatively wide angle, that is, the distance of two teeth; Fig. 6 showing the cam adjusted for a single tooth rotation; and Fig.

showing the cam pawl off the ratchet rotation of the latter.

Fig. 8 isa detail view showing parts of wheel and prevent the I the main line-space mechanism.

ward behind the paper shelf mounted on a she t 22 platen and extending parallel therewith,

Fig. 9 is a diagrammatic view illustrating a modified-means operated by the auxiliary line-space mechanism for feeding a work sheet or web.

The rotary platen 1 may he fixed to the platen shaft 2 .journaled. in the ends of the platen frame 3, said ends connected by the inclined paper shelf 4 located at the rear of the platen and extending forwardly beneath the platen; Said shelf may be made in one or, as'shown, may comprise a hinged section 5 adapted to swing forward to permit ready access to the mechanism behind the shelf. The main worksheet 6' may be fed forward around the platen by means of the usual feed rolls .(not shown), and upward in front ofthe platen in position to.receive impressions from the types 7, on the upwardly and rearwardly swinging type are 8. 1

The tally strip or web 9 is normally wound up in the form of a roll 10 upon the supply spool 11, the strip being led down- 4, around the platen, and upward over the printing line to the receiving spool 12. The tally strip 9 may have its inner face provided with. carbon or other impression material for trans ferring impressions of the types 7 frorn'the tally strip'to the underlying worksheet 6, and it may comprise two sections 9 and 9 provided with impression material of different colors if desired. If preferred, a separate carbon strip or other transfer medium might be wound with the tally strip so as to be interposed between the latter and the main Work-sheet.

The supply spool 11 may be supported in rackets or arms 13, -,the lower ends of a slot- 14 in a rod 15 supported in a head 16 formed on the" upper edge of tl 1e paper shelf 5. The rod 15 is ad ustable longitudinally in the head 16, and clamping screws 1'? threaded through the arms 13 bear against said head and clamp the parts in adfllsted position. A

interposed between a flange of the spool '11 a collar 19 on the shaft-20 of the spool, and forms-a friction hra ew the spool. The web 9 extends over a guide rod or bail 21 which is supported from the rod 15' and guides the web and prevents undue sagging ,e receiving. s 001 is adjustably located over the positioned to hold the.

the plunger 29 actuated by -34. The plunger 52.9

- wheel 53 fixed to the shaft 48 and ets or supports 23 and 24 mounted respectively on the ends of-the platen frame. The spool 12 is fixed to the shaft 22 by set screws 25 which when loosened permitthe spool to be adjusted to any position along the shaft 22. The supply spool 11 may i adjusted in the direction of its axis by loosening the set screws 17, so that the tally-strip may he placed the ,ilaten. The main lineespace mechanism for rotating the platen comprises the line'spece ratchet wheel 26,'fixed to the platen axle 2 and rotated by a pawl '27 pivoted at 28 to a linespace lever 30 mounted on a pivot 31. When the linespace leverv is actuated, the plunger 29 is moved rearwardly and the pawl 27 engages the ratchet wheel 26 and rotates the platen. During the initial movement of-the plunger, the pawl held oil the rod 3% is supported and guided at the rear end by a pin 35 extending through" aslot 36 in the rod, and said pin 35 may form a pivot for the usual spring detent 37. The adjusting lever 33 may or'rearward to permit the pawl 27 to' drop intoengagement with the line-space wheel the platen is rotated at each line-space operation. The lever 33 may beheld in adjusted position hy spring detent 38 seat-' mg in openings or depressions 39 in the rod and line-spaoe lever 30 are returned by a spring 40. A spring 41- bcaring od'the pawl 27 insures apositive a(: 1

tion of the latter.

he auxiliary feeding the tally strip is moun frame or bracket 24 which may be removahly attached to the platen frame.

line-space mechanism for tejd in the i the plunger 42. The pawl 1-9 is held ,in operative position .by a spring 51 connected to the plunger 42 and, to a tail 52 on j'the pawl. he movement of the ratchet wheel is imparted to the receiving roll 12 through in mesh with a pinion 54 fixed on the end the shaft 22. The pawl 49 is held off the ratchet wheel during a portion of its travel l kewise be at any desired position along I ratchet wheel by a v ledge 32 on a rod. 341- connected to an adjusting lever 33 pivoted on the platen axle. vThe be moved forward I driven by a pawl 49-connected by a --p1vot screw 50 to lar distance of two teeth.

of pawl 49 rides o'fi the cam surface 56 when r the plunger 42 has been movedv rearwardly a comparatively short distance, whereby said pawl is permitted to drive the ratchet wheel di|ri11gtl1e greater portion of its rear- I ward movement, thus rotatmg the receiving spool 12 through a comparatively large angle during each line-space rotation. In Fig. fi'tl'ie pawl 49 is shown by dotted lines at the limit of its rearward throw. It Will be noted that with this adjustment, the ratchet wheel at each operation is rotated the angu The receiving spool is therefore rotated through a correspondin angle at each line-space operation. If the :fijusting lever is moved to the position shown in Fig. 6, the cam 56 is moved rearwardly and holds the pawl 49 off the ratchet wheel fora longer period, so that the ratchet wheel is rotated the distance of only one tooth at each operation. By throwing the adjusting lever forward, as in Fig. 7, the cam-'56 is positioned to hold the pawl on the ratchet during the entire throw of the pawl.

-ldistanee through which the platen is ro- In other words, the auxiliary line-space mechanism is silenced.

The lever 57 ,is yieldingly held in its several normal positions of adjustment by a spring detent 58 which seats in notches 59 formed in a holding plate 60. An index or pointer 61 carried by the lever 57 moves over'a' scale or dial 62 having characters indicating the position of the lever. or the dis tanbe through which the receiving spool will be rotated- Said dial may be formed on a cover plate or casing 63 which incloses the auxiliary line space mechanism. The detent 58 and pointer 61 may be formed "of a single piece secured to the lever 57 by a screw 64. When the line-space lever 31 is operated for returning the platen for a new line and imparting a linespace rotation to 1 it, the auxiliary line spacer is simultaneouslyoperated to rotate the spool 12. The

tated is determined by the adjustment of the lever 33 and is entirely independent of the auxiliary line-space mechanism. The adjustment of the latter is likewise independent o fthe main line spacer and does not afl'eet the'o eration ofthe latter. When the vwinding o the tally strip on the-spool 12 iscominenced, the ,diameter of the 'roll thereonis comparatively small, and the peripheral movement correspondingly slow. a .The adjustinglever 57 is therefore preferbly set, as 1n Fig. 5, to secure sufficient mg on the tally strip. 1As th,e"storage:f "roll space between -.the' consecutive lines of writ V between 81Gb two consecutive lines on the tally strip In order to compensate for this increase (r Widening of the line-spacing, the lever 57 is set to elfect a smaller angular rotation of the line-space wheel, and thus secure the proper spacing of the lines By decreasing t e size of the ratchet teeth on the wheel 47 and increasing the number of positions to which the lever 57 may be adjusted, a. greater refinement of adjustment may be ol tained.

The tall; strip 9 may be against the platen along the prlnting' line by means of :1 guide frame'WhIch comprises a rod 65 connected to arms 66 mounted to swing on the shaft 22 whereby said guide frame may he swung upwardly and then guided and held rearwardly to the dotted line position indicated in Fig. 3 where it rests on a tie-rod 67 of the )laten frame. Said guide frame may also (omprise a plate 68 extending between the arms 66 and whichmay be used as a suppr rt'or backing for thcitallyiistr-ip forward tc release the shaft and permit it to be lifte dfrom its bearings. hand end f the shaft 22 is releasably held in like manner by asliding latch- 74.

Fig. 9 il ustrates amodifica-tion in which a work-she et or other form of Work mem- The left i ber mdy'be fed over the platen by meansof the. auxiliary line-space mechanism and spool or r1 all.

shown in the patent to Kurowski, 1,063,887.

dated June 3, 1913. Such. feeding mechay desired width said .feed roll 12* c 91 spending to the feed rol l'l'fi of said patent. A pressure roll 75 on a shaft76 cooperates with the spool or roll 12to feed a work sheet 9 ove r the platen, and may be confined The'feeding meansin this 'nistance may resemble, for'e'xample, that between thc end flanges, of thespool so that when the latter is adjusted, along the shaft the; pressure roll will move with it. .Villh this arrangementlthe supply s 901 11 or may not be omitted as-desiredQQf widths of aheets may be ad auxiliary )lls. 12*,f575l l may be placed betweeirjjther and '9. p

I 66 mg said strip -against the platen along he Variations may be resorted to within the printing line, said guide mounted'to swing scope'of the invention, and portions of the upwardly over the said shaft and rearimprovements may be used without others. wa'rdly behind the same to a position where Having thus described my invention, I it rests upon said tie rod. fifclaim: 7. In a typewriting machine, the combi- 70 ,1. In a ty ewriting machine, the 001m nation, with a rotary platen, and a shaft. bination with a platen frame and a platen supported thereabove; of a receiv ng spool journaled therein, of a shaft located over for a tally strip mounted on sand shaft; the platen, .a spool on said shaft to receive and a depending guiding frame for said a :tally strip extending around the platen strip pivoted to said shaft, said frame com- 75 and upward to said spool, and a swinging prising side members arranged adjacent the guide depending from said shaft and holdends of said spool, and a guide rod connectmg the tally strip against the'platen along ing thefree ends of said side members and the printing line. extending transversely across the strip.

2. In a typewriting machine, the com- 8. In a typewriting machine,the combibination with a platen frame and a platen nation, with a rotary platen, and a shaft supjournaled therein, of a shaft located over ported thereabovewf a receiving spool for a the platen, a spool on said shaft to receive tally strip mounted on said shaft; and a af tally stri extending around the platen depending guiding frame for said strip;

and upward o'said spool, and a swinging pivoted to said gshaft, said frame compris- 85 guide depending from said shaft and holding .side members arranged adjacent the ng the tally strip-against the platen along ends of said spool, a transversely-arranged t e printing line,v said guide mounted to plate connecting said side members inter--- swing upwardly over the said shaft and mediate their ends and disposed behind the 25. rearwardly to a position behind said shaft, strip said plate forming a backing against 90 3. In a typewriting machine, the comwhic said strip may he held to permitv hination with arotary platen, of a receiving erasures, and a guide rod connecting the spool for a tally strip, and. a guiding frame free ends of-said side members and extendforsaid strip comprising a plate forming a ing transversely across and in" front of; said backingagainst which the strip may be held strip. A

- to permit erasures. 9. The combination," with a rotary platen,

4 In atypewriting machine, the eombivand a platen frame comprising a paper nation, with a rotary platen; of a shaft shelf formed at its upper edge with a bead located over the platen; a spool on said or curl; of a rod' adjustable longitudinally I shaft rto receive a tally strip extending in said head; a pair of vertical arms having 100 around the platen and upward to said spool; curled lower ends projecting into said head and a guiding frame for said strip depend and anchored to said rod; a spool carried by ing from said shaft and holding said strip said arms at their upper ends; and means against the platen-along the printing line, for rigidly retaining said rod in adjusted 40 said frame comprising a plate forming a position.

backing against which the strip may beheld 10. The combination, with a rotary tolpermiterasures. platen, and a' platen frame comprising a 5 In a typewriting machine, the combipaper shelf formed at its upper edge with nation,- with a' rotary platen; of a shaft lo 'a head or .curl; of 'a rod adjustable long!- catedov'er the platen; a spool on said shaft tudinally in' said head; a pair of Vertical 110 to receive a tally strip extending around the arms having curled lower ends projecting platen and upward to said spool; and a into said head and anchored to-said rod; a swingingguide depending from said shaft spool carried by said arms at their upper L and holding the tally strip against the ends; and clamping screws threaded platengalong the printing line, said guide through said arms and bearingagainst said -mountedtoswing upwardly over the said bead. for rigidly retaining said rod'in adshaft and rearwardly to a position therejusted position. behind ;.and comprising a plate forming a 11. The combination, with a rotary ackin'g against which the strip may be held platen, and a platen frame comprising a H 55' to permit erasures. a paper shelf formed at its upper edge withla ,6. In a typewriting machine, the comhi head or curl; of a rod adjustable longitudination with ja platen frame having a tie nally in said head; arms secured to said rod rod connecting the ends thereof, and a rofor adjustment therewith; a paper spool car- 'tary platen mounted in said frame; of a ried by said arms and adjusted thereby;

60 shaft-located over theplaten in front of means for rigidly retaining said rod in adsaid,.tie. -rod; a spool on said shaft to receive juste position; .a shaft supported upon a tally-stri extending around the platen said ".rame parallel with said rod; apaper .and upwlhg' to sail spool; and a swing n spool adjustable along said shaft in 'conguide dependingfrom said shaft and hold-- K fdrmity with the position the first-named spool, whereby a work-strip leading from one sqool around the platen to the other spool may he adjusted to different positions upon said platen; means for reiaiuing the seoondmame-Il s oo] in adjusted position; and, means for eeding said strip in the direction in which it led? 1.2. Ina l-ypewritinig machine, the combination with a platen and a tally-strip mechaninn including a vindingspool, of 1nechanism for" Winding said spool and turning the platen including a reciprocating driver common 'to the platen and the Winding, spool, pawl and ratchet mechanism operated by said drii'e'r to impart uniform step-by-step angular rotations to said spool, whereby as the spool fills, the spacing of the lines written upon the tally-strip is increased, manually settahlc means for decreasing the angulzir motions the spool at the operations of said driver, whereby excessive linespacing of the items; written upon the tally-strip is molded, and :1 pawl, and ratchet mechanism also actuated 'hy said driver for line-spacing said platen and including a line-space regulator adjusnable independently of said manually set table means.

13. In a typewritin machine, the combination with a revolub e platen upon-which to carry 21 vi ork-sheet, and a second revoluble member upon which to carry a .worksheet, said work-sheets being superposed upon the platen, of a common driver, a pawl and latohet .mechanism actuated by said common driver for rotating the platen, a second. p11 wl and ratchet mechanism also actuated'by said driver, for rotating said second sheet-carrying Ifiember, and space regulatin mechanism for each of said pawl and rate et'mechanisms, each linespace regulating mechanism being settable independenaly of the other.

CLARENCE H. BROWN.

Wunesses:

F. B. Fn ms,v Gnu. W. Kmmmm.

Images