US1607112A - Typewriting machine - Google Patents

Description

Nov. l6 1926. 1,607,112

E. E. BARNEY TYPEWRITING MACHINE Filed June 2, 1926 2 Sheets-Sheet 1 INVENTOR ATTORNEY WITNE'iSgE E. E. BARNEY TYPEWRITING MACHINE Nov. 16 1926.

Filed June 2; 1926 2 Sheets-Sheet 2 INVENTOR a um? M W ATTORNEY WITNESSES (05% Qwinvention.

Patented Nov. 16, 1926.

'EDW'IN E. BA'ENEY, on NEW ROCHELLE, ew YORK, AssIeNoja T0 REMINGTON TYPE- WRITER COMPANY, OF ILIION, NEW YORK, A CORPORATION on NEW YORK. v

TYPEWRITING- MACHINE Application filed i'une 2, 1926. Serial No. 113,241.

7 My invention relates to typewriting and like maohinesand more particularly to tabulator mechanism, Morespecifically stated, the invention relates to'devices for selectively setting and for clearing or restoring the column stops.

, I The main object of my invention is to provide simple and inexpensive, yet highly efficient, devices of the characterspecified which may be readily incorporated in existing typewriting machines, and may be combined with existing tabulator mechanism, without modifying, or materially 'modify? ing, the structural features of such existing structures.

To the above and other ends which, will hereinafter. appear, my invention consists in the features of construction,arrangements of parts, and combinations of devices set forth in the following specification and particularly pointed out in the following claims. In the accompanying drawings, wherein like reference characters designate corre sponding parts in the different views,

Figure 1 is a fragmentary rear elevation with parts in section of part of a typewrit ing mac hine equipped with the devices of my Figure? is a. detail fragmentary top plan view ofthe same. I

Figure 3 1s a, detail side elevat on of the stop setting device represented in its actuated position and showing a column stop set thereby. i

stop clearing device and some of the column stops; theview showing the stop clearing device in its actuated position. 1 Figure 5 is a detail view taken transversely through the column stop bar and showing a column stop in its normal ineffective position on the bar.

Figure 6 is a fragmentary, enlarged detail frontelevation of the column stop bar.

Figure 7 is a fragmentary, detail fore and aft, vertical sectional view of the parts represented in Fig. 1; the section being taken on the line 77 of 1 and looking in the direction of the arrows at said line;

My invention is shown, in the present in-,

Figure 4 is a detail rear elevation of the the'maohine as they now exist; only .a- Suficient number of parts of said machine being 17 shown to illustrate the invention in its embodiment therein. Y It should be understood, I

vThe carriage with correspondingsupporting neans at the front thereof is thus supported and guided to travel from side to side of the machine over the top plate under control 'of its"escape'ment and tabulator mechanism. l

The escapement mechanism may be of the usualconstruotion represented in part by a feed rack 6 and a feed pinion 7 with which the rack meshes to control the step-bystep letter-feed movement of the carriageunder the power applied thereto by the [usual spring drum, not shown. The feed rackfi is supported on arms 8 pivoted at 9 on the rear cross bar 20f the carriage to enable the rack 6, to be'lifted out of mesh with the pinion 7, and thus-free the carriage from control of its escapement mechanism. 1 v

. Rearwardly extending bracket arms 10 fixed to thecarriage, supportja column stop bar 11 fixed to said arms. This stop bar has on opposite .sides thereof interdental spaces 12 at letter space intervals throughout: the

effective length thereof, and in each of which, spaces betweenthe teeth 12 is receiveda bifurcated sheet metalcolumn stop 13. In accordance with my invention the teeth 12* on the column stop bar are preferably arranged on the front and rear sides of. the bar so that the interdental'spaceslQ permit a vertical movement of each of the column stops from the uppermost ineiiec tive position to a lowermost eifective position where it may coact with a key controlled counter stop, as will presently appear.

s In order that each column stop may be retained against accidental displacement from either of said positions, and in order to prevent each of said column. stops from dropping off or being accidentally removed hereinafter specifically described.

from the bar, I provide means which will be It will suffice at the present to understand that each column stop 18 is retained against accidental displacement from either the effective or ineffective position to which it may be set.

Each of the lowermost effective column stops coacts with a suitable counter or cooperative key controlled tabulator stop. In the present instance such counter stop and the means for actuatingit are the same as are disclosed and claimed in the application of George A. Seib Serial No. 29,874 filed May 18, 1925 and will now be briefly described. Mounted on the top plate of the machine is a sheet metal bracket plate 14 on the inner end of which mounted a member, slide or stop 15 to receive. a limited vertical sliding movement on the bracket. This member has a stop at its upper end that comprises two oppositely disposed bevel faces 16, and 17 and an intervening slot 18 in which a projected column stop is received'to arrest the carriage. The counter stop, ar. ranged directly beneath the column stop bar, is elevated to effective position by an arm or lever 19 pivotedat 20 on the bracket plate 14. The outer end portion 21 of this arm is adiustably secured to the main body of the arm 19, and is pivoted at 22 to a depending; link 23 actuated by a suitable key at the keyboard. The inner. end portion of the arm 19 carries a leaf spring 24, the innerfree end of which underlies a pin 25 connected to the slide 15. When the lever 19 is rocked from normal position it elevates the counter stop- 15 throughthe' spring, 24 and interposes said stop in the path of the projected column stop. This same movement of the lever 19 effects a lifting of thefe'ed rack 6 to freeit from the pinion 7, and enable the carriage to travel until arrested by the first active column stop coacting with'the counter stop. The lifting of the feed rack is effected by ashoe 26, (Fig. 1) carried by.

and offset laterally on the lever 19 and er:- tending beneaththe teeth of the rack.

The ta'bulator. mechanism having, been described, I will now proceed to describe the stop setting and clearing devices of the pres-. ent invention.

A comparatively heavy bracket 27, preferably of cast metal, is secured by screws 28 to the top plate in the rear of the stop bar 11 and near the fore and aft median plane of the machine, which is indicated by the axis of the feed pinion 7 in Fig.1. Pivoted on a headed and shouldered pivot screw 29, threaded into the inner free end of the bracket, is a sheet metal stop setting member 30. This memberis preferably in the nature of an angular lever, one arm 31 of which is sub stantially-horizontally disposed and projects forward from its pivot and overlies the column stop bar and the stops carried thereby.

The thickness of the blade-like stop setting arm 31 corresponds substantially to the thickness of each of the column stops 13, so as to coact individually and with said stops and move them selectively to effective position, depending on the position of the carriage in its line of travel. The other arm 32 of the stop setting member is substantially vertically disposed and swings fore and aft of" the machine to produce respectivelyan up and down movement of the arm 31. The lower end of the arm 82 is bifurcated at 83 to receive a fiat lug 34, in tegral with and off-set laterally from the upper end of an upright crank arm 35 which has an integral'hub 36 at its lower end secured by a pin 37 to a rock shaft 38. The construction is such that when the. parts are in the actuated position, represented in 3, the opposite jaws 39 and 40 at the bifurcated end of the arm will bind or crank against the interposed lug 34 and act to arrest further motion of the parts away from normal position. In other words, at this time there can be no further angular movement of the arms'32 and 35 in the di rection of the arrows in Fig. 3, consequently said arms and all other parts connected thereto are arrested. At this time the column stop is arrested in its projected position and this in itself may be relied on to arrest the stop setting member and the parts connected therewith. The movement of the parts in the opposite direction is limited by the arm 32 coacting with a stop pin 41 extending from the bracket 27. The rock shaft 88 extends in the: direction of the. travel of the carriage and is located in the rear of the column stop bar. The inner end of the rock shaft 38 is reduced at 42 where it is received in a bearing opening in the foot piece of the bracket 27 The outer reduced end portion of the shaft 38 is received in a bearing opening in a bracket 43, secured by screws 44 to the top plate. The shaft 38 at its outer end extends beyond the bracket and has secured thereto, by a pin 45, the hub of a depending crank arm or actuating member 46 which terminates in a finger piece 47. It will be seen that this finger piece while at the rear of'the machine is located near one side thereof where it may be conveniently manipulated by the operator. A. coiled spring 48 surrounds the shaft 38 and is secured at one end to the bracket 43 and at the opposite end to a collar 49 secured to the shaft 38 by a screw 50. The power of this spring is exerted to turn 'the shaft 38 in an anti-clockwise direction, as the parts appear in 7, and to return it and the parts connected therewith to normal position, represented in this figure. The force of spring 48 may be increased or decreased by loosening the screw50 and turning the collar 49 on the shaft 88 in one direction or the other and tightening the screw to hold the collar in its newly adjusted'position on the shaft. forward movement of the finger piece 47: is effective to move the stop setting arm 31 down from the .Fig; 7 to the Fig.

3 position, forcing the registering column stop 13 down on the column stop bar to efiective pos1t1on, as shown 1n the last mentioned figure. When the finger piece 47. is

released the spring48 will return the stop setting devices to normal position, ready to "and aft of the machineto receive the threaded end of a shouldered pivot screw 52 having an enlarged head. 53. The stop restoring or returmng. device, shownin the. present instance, is made of sheet metal and comprises two parallel members or cam supporting lever arms 54 united at the lower edges thereof by an integral cross piece 55. The arms .54 are further united by a shouldered rivet 56 that projects at its'rear end beyond the arms to. provide an actuating or connecting pin 57, for purposes which will presently appear. The arms 54 extend in the direction of the travel of the carriage, and nearlthe right hand ends thereof are provided with registering openings that receivethe unthreaded shank of the screw '52 and pivotthereon. It will be seen that these arms are prevented from moving axially on the pivot screw 52 in one direction by the head 53 of the screw, and in the opposite direction by the projection 51 on the bracket.

vide oppositely disposed cammed faces or wipers 58 and 59. These cams .coactwith the'lovveriedges of the projected column stops to cam them successively up to ineffective position whenthe arms 54 are elevated to the Fig. 4 position and the carriage is'moved in the line of its travel. Whether'the cams 58 or 59 are efiective for this purpose depends on whetherthe carriage is moved from left to right or from right to left in returning the stops. 7

It will be seen that the pivoted lever arms 54 and the cams thereonare directly beneath the column stop bar and the stops carried thereby, and that the pivoatal movement of the arms from ineffective to effective position is in the same general direction as the movement of the stops on the ,bar to ineffective position. in short, both The. upper edge of each of the arms 54 is shaped to prohave an upward movement atthis time. Itv follows thereforethat if there should 'be any stops 13 in the path of the cams '58and59 when the latter are'elevated, such stops will merely be moved up to ineffective position by the cams and not obstruct the movement of the cams to effective position. V I have provided. a very simple andlinexpensive, yet highlyeffective, means for controlling the restoring, or clearing cams which vwill now be described. I V. 1 1

They rearwardly extending, connecting pin 57 on the arms 54, herein'before referred, to,

is received in'a cam slot 60 of a sheet metal cam member or lever 61, pivoted at 62130 the bracket 27. The member 61is extended up beyond its pivot to provide anarm 63 which terminates inan off-set finger piece 64. A coiled'contractile spring 65is secured at one end to a pin 66 projecting rearwardly from the member 61, the opposite end of said spring being anchored on a screw 67 threaded into extension 51 of the bracket;

27. This spring 65;returns the member 61 and the arms 54 to the normal ineffective position whenthe operator. releases the finger piece 64, in which position the parts are arrested by the pin 57 coactingwith the head of a screw 68 carried by the escapement bracket 69. in the opposite direction is arrested by the stops 13, when they are moved upward to The movement of the parts,

the limit of their movement on the stop bar 11. Since the stops l3-can move no further in this direction there can be no further upward movement'of the arms 54, nor a furtgher operating movement of the cam memer 61. i Y

It will be seen that the levers 61" and 54 extend at substantially right angles 'oneto the: other, and that the cam slot 60 is ec.- centric to the pivotal center 62 on which the lever 61 turns, the-pivotal movement ofthe member 61 being transverseto the pivotal movement of the arms 54. By reason of the construction and arrangement of the parts described, the pin 57 is substantially dead centered against the pivot 62 at all I times under action of column stops on the restoring cams, such dead centering resisting the tendency to displace the restoring cams from effective position during the restoration of the column stops. Otherwise I expressed, the stops 13 acting'on' the, re storing cams 58, 59 cause the latter to exert a dead center thrust against the pivot 62 of the controllinglever 61, and thusresist any tendency to displace said cams from effective position. This will be appreciated from a consideration of "Fig. 4 from which it will be seen that'the reaction of the column stops against the restoring cams 58 or 59 tends to force the pin 57- down, but that this is effectively resisted by the dead center thrust of the pin 57 against the pivot 5 dentally displaced, and there is no reaction against the finger of the operator in holding the restoring cams in effective position.

I will now describe the means for preventing an accidental displacement of the column stops on the stop bar, and for preventing an accidental detachment of the stops from the bar.

Referringmore particularly toFigs. 3, 5 and .6, it will be seen that a spring 70 is secured at 71 to each column stop 13. This springis provided with two arms 72 and 73 that extend upward, theformer in the rear and the latter in front of the stop bar 11'. The upper end of the spring arm 72 is provided with a projection 74 which overlies an adjacent tooth 12 of the stop bar. Said projection has a horizontally disposed lower contact face 7 5 that coacts with the upper corner or edge of said adjacent tooth, as shown in Fig. 3, thus limiting the motion of the column stop to effective position, andpreventing the stop from dropping off orbeing accidentally detached from the bar. However, a removal of the stop may be effected, when desired, by springing the arm 72 and carrying the projection 74 to a position where it will clear the coacting tooth 12 of the bar.

The spring arm 73 on the opposite side of the bar carries a laterally extending projection 76' beveled at its top and bottom edges. Extending longitudinally of the stop ,bar 11 is a groove 77 formed in the front face thereof, and providing a locking notch in' the front edge of each forward tooth 12 The location of each of these notches is, such that the projection or spring detent 76 is seated therein when the associated stop 13 is in theeffective position. This prevents the stop from being accidentally jarred or pushed up from effective position, as for example, when the stop 18 coacts with a bevel face 16 or 17 of the counter stop 15. The detent 76 does not, however, prevent the associated stop 13 frombeing positively cammed'up to ineffective'position by the restoring cam 58+-59. From an inspection of Fig. 5 it will be seen that when a stop 18 is thus cammed .up to ineffective position, the projection 7 6 will spring over the upper edge of an adjacent tooth 12' of the stop bar, thus holding the stop from accidentally dropping from such position to the lowermost effective position. The force of this spring detent is insufficient, however, to materially affect or resist the setting of the stop by the stop set ting devices. 7 From the foregoing it will be seen that I have provided simple and inexpensive means for attaining the results specified, and such means in practice have proved highly efficient;

Various changes may be madewithout clepartmg from my mventlon as it is defined in the accompanying claims, and certain of the features thereof may be employed without others. I

What I claim as new and desire to secure by Letters Patent, lSI-T" 1. In atypewriting machine, the combination of a carriage,'a series of column stops carried thereby and movable vertically there on from ineffective to effective position and vice versa, and stop setting mechanism car- :rock shaft, and a pivoted angular lever one arm. of which constitutes a stop setting blade that extends above said column stops and the other arm of which is operatively connected with said crank arm and by which the lever is rocked, said operative connection being formed by a bifurcation in one arm" that receives the other arm, .said connection limitingthe moton of the stop setting mechanism in one direction.

2. In a typewriting machine, the combination of a carriage, a series of column stops carried thereby and movable vertically thereon from ineffective to effective position and vice versa, and stop setting mechanism carried by the frame of the machine and co-operative selectively with said column stops depending on the position of'the carriage in its line of travel to move them to efi'ective position, said stop setting mechanism comprising a rock shaft that extends longitudinally in the'dir-ection of the travel of the carriageand has an upstanding crank arm at its inner end .and a depending finger piece at its outer end, abracket detachably secured to the top plate of the frame of the machine, and an angular lever pivotedon said bracket and having a substantially horizontally disposed arm that extends over the column stops and a substantially vertically disposed arm operatively connected to said upright crank arm on the rockshaft.

3. In a typewriting machine, the combination of a carriage, a series of column stops carried thereby and movable vertically there onfrom ineffective to effective position and vice versa, and stop setting mechanism carlUf) cured to the topplateof the frame of the Vmachine, 'an angular leverpivoted on said a bracket and having a substantially horizontally disposed arm that extends over the column sto s anda' substantiall verticall dis posed arm operatively connected to said uprighterank arm on the rock shaft, said operative connection being formed by, a b1furcation in one arm'thatreceives the other arm, said connection limiting the operating movement of the stop setting mechanism,

" and a stop on said bracket with which said angular lever coacts to limit the return movement of the parts.

4. In atypewriting machine, the combina tion of-a carriage, a column stop bar carried thereby, column stops mounted for vertlcal movement on' said column stopbar to and f'romefl'ective position, a key controlled cooperative stop movable up from beneath the column stop to effective position, and stop setting mechanism carried by the frame of the machine and co-operative selectively tachably securedto the top. plate of themachine,,a rock shaft extending longitudinally in the direetionof the travel of the carriage and mounted to turn in bearings in said brackets, a crank arm that extends upward y from the inner end portion of said rock shaft 7 said rookjshaft V a 5. In-a typewrlting'machlne, the com b1-' nation of a'carriage, a column stop bar car in the rear ofsaid columnstopbar, a finger piece dependmg fromfthe other or outer end of said rock shaft,- and an ,angular lever pivoted on one of said brackets andflhaving onear'inthat extends substantially horizontally over said" column stopsand a'secon'd substantially"vertically disposed arm that is operatively connected to thej cr'ank arm on: v

' i a hand actuated controlling lever for said ried' thereby, column stops mounted for vertical movement on said column stop bar to andffrom effective position, a key contion andstopf setting mechanism carried by the frame of the machine and co-oper'atlve selectively with the, column. stops depending: on the p'osition of. the carriage in its line of travel to move them to effective position,

said stop setting mechanism comprising two brackets detachably secured to the top plate; of the machine, a rock; shaft extending longitudinally in the direction of the travel oft'he carriage andmounted' to turn inbeartends upward from the inner end portion ing s'fin'said brackets, a crank arm that ex-v of said rock shaft in the rearof said column parts conn'ected therewith, a stop for limit:

infgthe return motion of the parts, and an angularleverpivoted on one of said brackets and having onearm that extends substantially horizontally over said column stops and a; second substantially vertically dis tionin'one arm that receives the other arm,

said connection limiting the operating movement' of said stop setting mechanism.

6.111 a typewriting machine, the combination of a carriage, a series of column stops carried thereby and'movable thereon into andout of effective position, and stop returning mechanism carried by the frame of the machine and co-operative with said stops to "return them to ineffective position, said returningmechanism comprising posed arm'that, is op eratively connected to "'the'crankarrn on said rockshaft, said'opera tivefconnection being formed by a bifurca-J the latter and thus resist the displacement returning mechanism carried by the frame of-the machine and co-operative with said stops to return them to lneffeetive position, said returning mechan sm comprising a restoring cam which coa cts with the effective stopsitof cam them- 'to' ineffective position, a

lever ar' mron which said cam is supported,

cam, and intermediate actuating connections between said last mentioned-lever and-said lever arm that enable'the cam carrying lever arm substantially to dead center against the pivot of said controlling lever and thus resist the displacementof said restoring cam under the action of the stopsthereon,

8. In a typewriting machln'e, the combi-' nation of a carr1age,,a series-of column stops carried ithereby' and movable thereon into loo andout of effective position," and stop returning mechanism'carr ed by the frame of the machineand co -operative with said stops to return them to ineffective position,

said returning mechanism comprising re i storing ca'm which 'coactswith the effective.

stops to cam them to ineffectiveposition,"a

hand actuated? lever for controlling "said cam, andla cam on said lever by which said restoring, cam"; is =actL1ated' -and through which the restoring cam substantially dead lever and thus resists the displacement of centers against the pivot of the controlling the restoring cam under the action of the stops thereon.

9. In a typewriting machine, the combination of a-carriage,a series of column stops carried thereby and movable thereon into and out of effective position, and stop returning mechanism carried by the frame ofthe machine and. co-operative with said stops to return them to ineffective position, said returning mechanism comprising a restoring cam which coacts with the effective stops to cam them to ineffective position, a hand actuated lever for controlling said cam, said lever having a cam slot therein, and-a pin connectedwith said restoring cam and received in said cam slot to'actuate the restoring cam, therestoring cam exerting substantially a. dead center thrust'against the pivot of said controlling lever and thus resist the displacement'of the restoring cam under the action of the stops thereon.

it). in a typewriting machine, the combi-. nation of a carriage, a series of column stops carried thereby and movable thereon into and out of effective position, and stop returning mechanism carried by the frame of the machine and co-operative with said stops to return them to ineffective position, said returning mechanism comprising a restoring cam which coacts with the-effective stops to cam them to ineffective position, a supporting lever on which said restoring cam is mounted, and a hand actuated controlling lever coacting with an arm of said support- 2 ing. lever through an intermediate cam, the

motions of the coacting arms of said levers being transverse one of the other so that the'supporting leverwill substantially dead, center against the pivot of the controlling lever and thus resist the displacement of the restoring camnnder the act on of the stops thereon.

11.. In a typewriting niachine,the combi nation of a carriage, aseries of column stops carried thereby and vertically movable there on into and out of effective position, and

stop. returning meohanisni' carried by the frame or" the machine and co-operative with said stops to return them to ineffective po sition, said-returning mechanism comprising a restoring cam arranged beneath said stops andivhich coacts with theeffective stops to cam them upward to ineffective position, a supporting lever for said cam,fa hand actuated controlling lever havingia cam slot therein, and a pin onsaid suppoi'ting'lever received in saidcam slot, the arms of said levers having said cam slot and pin extending one transversely of the other so that the supporting lever will substantiallydead center against the pivot of the controlling lever,

and thus resist the disnlaceinentof the reable thereon into and outof effective posi tion, a stop setting device carried by the frame of the machine and operable by a pivotal movement on the stops from above to move them selectively down to effective position, the stop to be selected depending on the position of the carriage in its line of travel, a bracket secured to the top plate of the machine and on which said stop setting device is pivoted, a key controlled counter stop beneath said column stops and movable upward to coaet with the effective col umii stops, a restoring cam beneath said column stops and movable up to effective position to coact with the effective column stops, a lever on which said restoring cam is mounted, a hand actuated lever for controllin said restoring cam and which is a t. L pivoted on said bracket and extends transversely of said supporting lever, and means for operatively connecting said levers so that. the pivot of the controlling lever will resist a downward movement of the support ing lever and thus resist a displacement of the restoring cam under the action of the stops thereon.

13. In a typewriting machine, the combination of a column stop bar having a longitudinally extending locking groove there n,

stops shiftable vertically on said barintiO' and out of effective positions, means forpreventing the accidental detachment of each of said stops from said bar and'f'or holding each of said stops against-accidental vertical displacement from its lowermosteffective position and also from its lowermost ineffective position, saidmeans including a spring carried by each stopandhaving an engaging projection that engagesan upper corner of the barwhen the associated stop is in the uppermost ineffective position and engages in. said-locking groove when the stop. is in the lowermost-effective position, a second projectionv on said spring which coacts with an"uppencornerof the.

stop bar to limit the motion of the stop in its movement'to the lowermost effective position, means, for moving said stops to the uppermost effective position, and means for moving said stops to lowermost ineffective position.

Signed at' the borough of Manhattan, city of New York in the county of New York and State of New York this 1st day ofJune,

A..D.1926.. i 1 t n'nwnranaemia?

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