US1659170A - Typewriting machine - Google Patents

Description

Feb. 14, 192

G. A. SEIB TYPEWRITING MACHINE Filed Maiy 13. 1925 3 Sheets-Sheet l ATTORNEY WITN ESEES Feb. 14, 1928.

G. A. SEIB TYPEWRITING MACHINE Filed May 3, 1925 s Sheets-Sheet 2 NV i a a M. 2 m H WSW mm 7 11].

NT I Tm h INVLNTOR ywwg ATTORNEY Feb. 14, 1928.

(3- A. SEIB TYPEWRITING MACHINE Filed May 13, 1925 3 Sheets-Sheet 3 INVENTOR VYM FM ATTORNEY Patented Feb. 14, 1928.

UNITED STATES PATENT OFFICE.

GEORGE A. SEIB, F ILION, YORK, ASSIGNOR 'I'O REMINGTON TYPEWRITER GOM- IPANY, OI ILION, NEW YORK, A CORPORATION OF NEW YORK.

- mnwnrrrive Macrame.

Application filed May 13, 1925. Serial No. 29,874.

My invention relates to typewriting machines, and more particularly totabulating mechanism therefor.

1 and (c) carriage retarding mechanism in which the parts are simple, in construction,

cheap tomanufacture and install, and coact to 'operate'in a highly effective manner to attain the desired results. j

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 description and particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters designate corresponding parts irf the different views- Figure 1 is a fragmentary fore-and-aft vertical sectional view of a typewriting machine equipped with the mechanism of my invention; the section being taken on the line 1.1 of Fig. 2 with parts removed and looking in the direction of the arrows at said line.

Figure 2 is a fragmentary top plan view of a portion of the same.

Figure-3is a fragmentary rear elevation of the machine with parts in section and parts broken away. 1

Figure 4 is a fragmentary detailrear elevationt showing a portion of the tabulator mechanism as the parts appear just before a column. stop reaches the cb-acting projected tabulator stop and the carriage is moving. in the direction of the arrow.

Figure 5 is a like v1ew of the same show I in the parts as they appear just after a co umn stop has. reached and engages the projected tabulator stop.

I'have shown my invention, in the present instance, incorporated in a machine resembling the No. 12 Remington, but have illustrated only so much of said machine as is necessary to arrive at an understanding of my invention in its embodiment therein. It should be understood, however, that the invention maybe included in various styles of typewriting or like machines.

The frame of the machine 'com'prisesa base 1, corner posts 2, and a top plate 3. A carriage 4 of the usual construction is supported on bearing rollers to travel from sideto-side of the machine over the top plate. The bearing rollers at the rear of the carriage are indicated by the reference numeral 5. This carriage supports a platen 6 and is moved in the direction of its feed, or from right to left, by a spring drum/Z connected to the carriage by a pull band 8. j

A feed rack 9 is secured by screws 10 to a "cross bar 11 having forwardly projecting arms 12 pivoted at-13 on upstanding lugs 14 on brackets 15. These brackets .are secured by .screws 16 to the'rear cross bar 17 of the carriage, one near each end of 'said cross bar.- The bar 11 near the center thereof carriesan' adjustable screw stop 18 which coacts with a companion stop 18 secured to the rear cross bar of thecarriage by screws 19 and a plate 20. In the present instance this stop 18 is shown as forming a platelike foot piece of an upwardly and rearwardly extending integral bracket arm 21, for purposes which will hereinafter appear. The stops 18 and 18" co-act 'to limit the downward movement of the feed rack intov engagement with the teeth of a feed pinion 22. Said pinion constitutes part of the usualacarriage escapement mechanism, being operatiyely connected to the escapement wheel (not shown) .which controls the stepby-step letter feed movement of the carriage. A -double ended leaf spring 23'is secured at the middle thereof to the rear cross bar of j the carriage by the screws 19, plate 20 and foot piece 18 Each freelend ofthis leaf spring is bent down at its sides, as shown' 1n Fig. 1 and extends over and bears down on a horizontally disposed pin 24: carried by therefore, tends to movethe feed rack down into engagement with the feed pinion '22 and hold it in such engagement.

rearwardly extending arm 25, on which arms is adjustably secured in the usual manner a column stop bar 26 carrying aseries of column stops 27, 28 and 29. Each column stop, in the present instance, is made of sheet metal and is bifurcated in order that it may be detachably secured in .the interdental the bar 11. The pressure 'of this spring,

Each bracket 15 is also providedwith a spaces 30 on opposite sides of the bar, and thus maybe adjusted to any letter space interval along the bar.

Each of the bracket arms carries an of. These stops constitute limiting means for llmiting the upward releasing movement of the feed rack against the force of the spring 23 when ,the rack is disengaged from the feed pinion 22, for purposes which of the machine;

will hereinafter more clearly appear. On carriages of standard length it will suflice to employ the two screw stops 32, each coacting with the rack near one end thereof. However, when long carriages are used I prefer to employ a third screw stop 34 located'about midway in the length of the carriage and co-aetmg with the top of the feed rack intermediate the ends thereof. This third, stop 34 is mounted in a manner which will presently appear.

A bracket 35 which may be made of sheet metal has feet 36 apertured to receive the shanks of headed screws 37, received at their 4 threaded ends in tapped openings in the top plate 3 of the machine. This bracket has an inwardly extending arm 38 that terminates in a' rearwardly bent end portion 39' near the fore-and-aft vertical median plane vertically disposed slot 40 therein. The upper and lower end walls 41 and 42 of this slot constitute arresting means for limiting respectively the up and down rectilinear movements ofa combined tabulator and anti-rebound. stop into and out of effective position, as will presently appear. This combined stop is designated as a whole by the reference numeral 43 and comprises a slide or plate-like member 44 mounted on the left-hand face'of the bracket end 39;"

Headed rivets 45 and 46 are riveted at their right-hand ends to the slide 44, and at their left-hand ends to a second plate 47. The intervening shouldered portion of each rivet passes freely through the slot 40 to slide up and down therein and maintain the members 44 and 47 properly spaced apart, and secure the stop member 43 for sliding movement on the fixed bracket 35. When the member 43 has been fully projected to effectiveposition, as shown in Fig. 5, the upper rivet 45 coacts with the upper end wall of the slot 40 to limit the further upward movement of said member. In the return of the member 43 to lowermost or normal position the lowerrivet v46 co-acts with the bottom wall of the slot 40 to arrest said member. Extending to the leftfrom the This end portion 39' has a face 57 on the left-hand side thereof. There is an'intervenin space or slot 58 between the face 51 of t e tabulator stop and the face 57 of the anti-rebound stop, which space is of a width slightly in excess of the thickness of each of the column stops. It will be observed, moreover, that the upper edge of the stop 50 is at a slightly higher elevation than the top edge of the stop 54.

Motion is transmitted from the tabulator key to project the combined stop member 43 to effective position by the following means I A tabulator key 59 is arranged at one'side of the keyboard on the forward end of a key lever 60 fulcrumed at the rear end thereof on the usual fulcrum bar 61 and guided in slotscof guide combs 62 and 63. A returning spring 60 is connected at one end to the key lever'60 and aids in returning said lever and the parts controlled thereby to normal position. This key lever carries a laterally projecting pin 64 by which it is detachably pivoted with the aid of a cotter pin 65, to the lower end .of a bent sheet metal link 66. This link extends rearwardly and upwardly from its point of pivotalconnection with the key lever, and is twisted at 67 .so that the upper end portion of the link lies in a lateral plane vhile the lower end thereof, lies in a fore-and-aft plane. The upper endof the link is pivoted by a shouldered-pivot screw 68 to'the outer end of an arm 69, the forward end of the screw 68 engaging a lock nut 70. The arm 69 is mounted intermediate its ends on a shouldered screw 71 receivedat its threaded end in a tapped opening in the left-hand arm of a lever 72;. the screw 71 bein held by a lock nut 73. The inner end 0 the arm 69 has a slot 74 struck in an are around the pivot screw 71 as a center. The threaded shank of a headed binding screw 75 passes freely throu h a slot 74 and is received in a tapped opening in the lever 72- and extends therethrough for engagement with a lock nut 76. The lever 72 is pivoted intermediate its ends on a shouldered pivot screw 76, received at its threaded end in a tapped opening in the bracket 35 and held in place may be adjusted relatively to the other.

i to 'bring the tabulator Thus, by loosening the screw 7 5, the outer end of the arm 69 may be raised or lowered key to the proper elevation on the keyboard, while the inner end of the lever '7 2 and the parts controlled thereby remain in the normal position, shown in Fig. 3. The screw 75 may then be tightened to connect the members 69 and 72 in their adjusted relation to move together as one part. I

The lever 72 is provided at its inner end with a finger 78 thatoverlies the pin 49 and with.

is incontact therewith when the parts are in normal position, shown in Fig. 3. A leaf springv 79 has afoot-piece 80 bent at right angles to the plane of the body thereof, and this foot-piece is secured to the rear side of the lever 72 by screws 81. The inner free end of the spring extends forwardly at 79 (see Fig. 2) where it underlies the "pin 49. The power of this spring 79, when theparts are in the normal position, shown in Fig. 3, exerts a comparatively light upward pressure on the pin 49 to hold it normally in engagement with the finger 78 on the lever 72.

The sheet metal lever 72 is also provided with a forwardly extending arm 82- (see Fig. 2) that may be formed integral there- This arm terminates in a contact shoe, rack lifter or carriage releasing'device or member 83 that also acts as a brake shoe erted to return the entire tabulator when actuated. This member 83 is preferably curved in cross section to present an upper convex contact face where it underlies the teeth of the feed rack 9, as best shown in Fig. 5. A wire returning spring 84 is coiled. around the shank of a headed screw 85 secured to and projecting from the rear side of the bracket 35. One arm 86 of this spring bears down against the arm 82, whereas the other arm 87 of the spring bears down against a foot piece '36 of the bracket 35. The force of this spring is therefore exto the normal, Fig. 3, position, including the tabulator key, the cor bined stop 43'and all of the intervening parts.

The operation of the mechanism, of my invention is as follows:

A depressionof the tabulator key 59. is effective to draw down the outer end of the lever 72 and elevate the inner end thereof. This results in carrying the spring 79 up and transmitting through said spring an upward sliding rectilinear movement to the combined stop member 43 by the co-operation of said spring with the pin 49. This upward motion of the stop member 43 continucs until it is arrested by its independent arresting means 41, 45. .However the motion of the lever 72 under control of the tabulator key may continue against the. resistance of the spring 79 which is beingflexed at this time. During the motion of the lever 72 the, rack releasing device 83 thereon is carried up, lifting the feed rack 9 out of engagement with the feed pinion 22. The

independent motion of the lever 72 which,.

arrested by its independent arresting means orscrewstops 32, and also by the stop 34 i if the latter be employed. Such stops are the only thing that limit the depression of the tabulator key and the actuating movement of..the lever 72 controlled thereby. It will be understood therefore, that after the feed rack is arrested in its releasing movement by said stops, the harder the pressure exerted on the tabulator key the greater will be the force exerted bythe carriage -releasing member 83 against the feed rack. At this time, therefore, the member 83 will act as a positively applied brake shoe to retard the carriage in its otherwise free movement across the machine. Therefore, the speed of the carriage in this movement will depend on the application of the brake and the amount of pressure exerted by the operator on the tabulator key. This latter, by reason. of the long leverage provided by the key lever 60, need not be very great, and the operator will soon learn to apply just the pressurelto the key to requisite amount of tabulatmg movement of properly retard the the carriage.

The first part of the de n'esslon of the tabulator key projected the stop member to ef- Assuming that the.

the brake applied by the same act'otdepressing the tabulator key, the carnagewill travel to the left until it co acts with the bevel face 56 of the anti-rebound stop 54, as shown in Fig. 4," The effect of this co-operation'o'f the stops in question is to force the member 43 down against the force of the s )ring 79 without, however, affecting thebraking action which is still maintained on the carriage. In Fig. 4 the parts are shown stop member 43 is almost depressed to its lowermost position against the action of the spring 79, and just before the stop 29*moves displayed as they appear when .the i into register with theslot 5 8. When this does occur the stop member 43 will be quickly moved up by the flexed spring 79 to the Fig. 5 position. Atthis time, the coloperation described has umn stop 29 will engage the abrupt face 51 of the tabulator stop 50 and the carriage will be arrested. Any rebound of the carriage at this time is limited by the abrupt face 57 ofthe anti-rebound stop 54 coacting with the right-hand face of the column stop 29. It is unnecessary to absolutely prevent all rebound of the, carriage, but merely to limit the extent of such rebound to less than a letter space distance. Fig. 5 shows the parts as they appear after the tabulating been completed. The operator now releases the. tabulator key and the parts will be returned to the normal Fig. 3 position by the springs 84 and 60. During the return movement of the parts the stop member 43 will be held projected by the spring 7 9 while the lever 72 1s moving back to normalposition, and until the finger78 cnga'gesthe pin-49 to move the stop member 43 downwardly. This lead -in the movement of'the lever '("2 enables the feed rack 9 to be moved down into engagement with the feed pinion 22 before the stop member .43 releases the engaged column stop. This, of course, meansthat the carriage is restored to control of its escapement mechanism before the tabulator mechanism releases the control of the carriage.

From an inspection of Fig. 5 is will be understood that the construction and arrangement of.the parts are such that the column stops may be adjusted relatively one to another so that they are separated two letter spaces apart without interfering with the operation of the tabulator mechanism.

This affords a jump of the carriage of one letter space, the minimum amount required in practice. However, the parts may be so proportioned that the column stops may be set'at letter space intervals without interfering with the operation of the tabulator.

I have described the operation of the tabulator in controlling the carriage in its movementfrom right to left. It should be understood, however, that the mechanism also is capable of use for backward tabulat-' ing, in which the carriage is moved from left to right to tabulating position. At such time the tabulator operates substantially as before except that the carriage is pushed from left to right. At this time, however, the first approaching column stop co-acts with the bevel face 52 of the stop 50 and depresses the stop member 43 against the action of the spring 79. When the slot 58 registers with the column stop, the stop member 43 will be shot rapidly by the fiexed spring 79 to the projected position. 60

This movement of the stop member 43 is so rapid that the column stop does not have an opportunity to pass the abrupt face 57 of the stop 54 and is engaged thereby, the stop 54 at this time acting as a tabulator stop and the stop 50 as an anti-rebound stop.

Otherwise the operation of asgpreviously described.

stop bar 26.

from being mediate its ends when a column stop therethe tabulator is I have hereinbefore indicated that the stop 34 may or may not be-employed, de-

pending on the length of the carriage. When a long carriage is used I prefer to form the bracket arm 21 integral with the retaining plate or foot-piece 18. The bracket arm 21 has an integral flat substantially horizontally disposed part 88 provided with a comparatively long slot 89 that extends longitudinally parallel with the column stop bar 26. A plate 90 underlies the part 88 and is adjustably secured thereto by a headedclamping screw 91, the stem of which passes freely through the slot 89 and is received in a tapped opening in the plate 90 to secure the latter in place. The plate 90 carries a rearwardly projectin stop, brace, or finger 92 that overlies an contacts with the upper side of the column The purpose of this stop or finger 92 is to prevent the column stop bar bent or flexed upwardly interon engages either of the bevel faces 56, 52 and forces the stop member 43 down against the force of thespring 7 9. Of course it will be understood that the longer the carriage, and consequently the longer the stop bar 26, the

more apt the latter is to be bent 'or flexed in the circumstances pointed out. In carriages of standard length the use of the stop finger 92 may be found unnecessary,

The object of making the plate 90 which carries the finger or brace 92 adjustable in the general direction of the travel of the carriage, is to enable said finger to be'adjusted to one side or the other of a column stop in the event that said finger should happen to be at a'point on the column stop bar where it is desired to position a column stop.

When the stop or brace 92 is employed it is also desirable to employ the adjustable screw stop 34. In the present instance I prefer to provide a laterally projecting arm 93 on the plate 90. This arm overlies the feed rack 9 and is tapped to receive the screw stop 34, which is held in its adjusted position by a lock nut 94. The lower end of not be a rigid resistance of the rack at the center thereof to the action of the brake shoe, and a defective and unreliable operation of the tabulator might result. I-Iowever, when shorter standard carriages are used the feed racks are proportionately shorter and there is less liability of the rack loo being bent or flexed in theaction of the releasing device against it.

It will be seen that the key controlled stop member 43 is carried wholly by and slides on the comparatively heavy bracket 38 which is fixed to theframe of the ma chine. Therefore, the resistance to the impact between the stops, in arresting the carriage, is borne by said bracket and not by the lever 72 or any key controlled part by which the stop 43 is projected to eifective position through theinterposed spring 79 It also will be seen that by a simple form of construction motion may be transmitted from the tabulator keyat one side of the machine to the stop member 43 located about centrally thereof and that I have provided a, highly eflicient tabulator, anti-rebound, and

brake mechanism which is simple in construction and may be manufactured .and assembled in the machine at comparatively small cost. It will be seem-moreover, that the construction is such that it may be readily embodied in existing typewriting machines, such for example as the No. 10,the'

improved N o. 10, the Nos. 11. and 12 Remington machines, without material modification of such machines except by way of substitution of the present tabulating mecha-' nism and carriage retarding mechanism for those formerly employed.

It should ,be understood that various changes may be made in the construction,

and parts thereof may be omitted, without departing from the invention as it is defined in the accompanying claims.

What I claim as'new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a carriage, escapement mechanism therefor including a feed rack mounted for movement on the carriage to releasing position, a limiting stop-for positively arresting the releasing movement of the feed rack, a column stop carried by the carriage, a cooperative tabulator stop, a tabulator key, a spring between said key and tabulator stop' and through which the latter is projected to efiective position by the actuation of said tabulator key, and a rack releasing device controlled by said tabulator key and operative topress the rack against said limiting stop while the key is maintaining the tabulator stop in its projected position, thus exerting a braking action by the releasing device to retard the movement of the carriage when the tabulator key is maintained depressed.

2., In a typewriting machine, the combination-of a carriage, escapement mechanism therefor including a feed rack mounted for movement on the carriage to releasing position, a limiting stop for positively arresting the releasing movement of the feed rack, a column stop, a combined tabulator and antirebound stop, a tabulator key vfor moving said combined stop into efiectivwposition and a rack releasing device also controlled by said tabulator key and effective to force the rack against said limiting stop after the combined stop has been moved to effective position and thereby cause the releasing device to act as a braketo retard the movement of the carriage from the time the latter is 1 rebound stop, a tabulator key, a spring be-f' tween said. key and combined stop and through which motion is transmitted from the key .to the combined stop, arresting means independent of said key for limiting the motion of said combined stop to eifec- 'tive position, and a rack releasing device controlled by said tabulator key and effective to act as a brake to retard the movement of the carriage.

'4. In a typewriting machine, the combinationof a carriage, column stops carried thereby, a fixed support carried onthe frame of the machine, a one-piece combined tabulator stop and anti-rebound stopmounted and adapted to slide with a rectilinear movement on said support, a tabulator key, a spring interposed between said key and said one-piece combined tabulator stop and antirebound stop and through which the latter is moved to effective position to co -act with said column stops, a .feed rack mounted for releasing movement onthe carriage, limiting means for limiting the releasing movement of said 'feed r.ack, and a releasing device controlled by said tabulator key and effective to exert a braking action on the feed rack to retard the carriage in its tabulating movement.

5. In a typewriting machine,- thecombination of a carriage, column stops carriedthereby, a fixed support carried on the frame of'the machine, a one-piece combined tabulator stop and anti-rebound stop mounted and adapted to slide with a rectilinear moyement on said support, a tabulator key, a lever actuated by said key, a spring carried by said lever and through which motion is transmitted from said lever to said one-piece combined tabulator stop and anti-rebound stop to move it to effective positiontdco-act with said column stops, a feed rack mounted for releasing movement on the carriage, a stop co-acting directly with said feed rack to limlt its releasing movement, and a releasing device carried by said lever and co-acting directly with said feed rack to release it and apply a braking action thereto to retard the carriage.

6. In a typewriting machine, the combination of a carriage, column stops carried thereby, a fixed support carried on the frame of the machine, a one-piece combined tabulator stop and anti-rebound stop mounted and adapted to slide with a rectilinear movement on said support a tabulator key, a lever actuated by said key, aspring carried by said lever and through which motion is transmitted from said lever to said onepiece combined tabulator sto and anti-re bound stop to move it to efi ctiveposition ,to co-act with said column stops, and stoppingmeans between said fixedsupport and said combined tabulator stop and anti-rebound stop for limiting the movement of the combined stop to efi'ective position.

7. In a typewriting machine, the combination ofa carriage, column stops carried thereby, a fixed support carried on the franie of the machine, a one-piece combined tabulator stop and anti-rebound stop mounted and adapted to slide witha rectilinear movement on said support, a tabulator key, and a spring interposed between said keyand said one-piece combined tabulator stop and antirebound stopand through which the latter is moved to effective position to co-act with said column stops;

8. In a typewriting machine, the combination of a carriage, column stops carried thereby, a fixed support carried on the frame of the machine, a one-piece combined tabulator stop and anti-rebound stop mounted and adapted to slide with a rectilinear movement on said support a tabulator key, a le- Ver actuatedby said key, and a spring carried by said lever and through which motion is transmitted from said lever to said onepiece combined tabulator stop and-anti-re bound stop to move it to eifective position toco-act with said column stops.

-between said fixed support and sa1dcom- 9. In a typewriting machine,the combination of acarriage, column stops carried thereby, a fixed support carried on the frame of the machine, acne-piece "combinedtabulator stop and anti-rebound stop mounted ment on said support, a tabulator key, a lever actuated by said key, a spring carried by said lever and through which motion is transmitted from said lever to said one-piece combined tabulator stop and anti-rebound stop to move it'to efi'ectlve position to co-act with said column stops, and stopping means bined tabulator stop and anti-rebound stop for limiting the movement of the latter to": effective position.

10. In a typewriting'machine, the combination of a carriage, column stops carried thereby, a support fixed on the frame of the machine about centrally'thereof, a tabulator I stop. carried by said support and slidably mounted thereon for movement into and out ofeflective position and limited in'its movement into effective position by said fixed support, a tabulator key lever mounted near connected at one end to said link, and a leaf spring carried by the other end of said sublever and through which motion is transmitted to said slidably mounted tabulator stop from said sub-lever.

11. In a typewriting machine, the combination of a carriage, column stops carried thereby, a support fixed on the frame of the machine about centrally thereof, a tabulator stop carried by said support and slidably of effective position, a tabulator key lever mounted fnear one side of the machine, an upwardly extendin link connected to said key lever, and a su -lever pivoted intermediate its ends and extending transversely of the machineand connected at one end to said link andoperatively connected at'its other end to said tabulator stop, said sub-lever comprising two parts one of which is adj ustable to different se positions relatively to the other part. 7

12. In a typewriting machine, the combination of a carriage, column stops carried thereby, a support fixed on the frame of the machine about centrally thereof, a tabulator stop carried by said support and slidably mounted thereon for movement into and out of effective position, a tabulator key lever mounted near one side of the machine, an upwardly extending link connected to said key lever, a sub-lever pivoted intermediate its ends and extending transversely of the machine and connected at one end to said link and operatively connected at its other end to said tabulator stop, a feed 'rack carried by and movable to releasing position on the carria e, and a rack lifting shoe carried by; said subever and underlying said feed rac ,13. Inga typewriting machine, the combination of a carriage, column stops carried thereby, a support fixedon the frame of the machine about centrally thereof,-a tabulator stop carried by said support and slidably mounted thereon for movement into and out of effective position, a tabulator key lever mounted near one side of the machine, an upwardly extending link connected to said key lever, a sub-lever pivoted intermediate its ends andextendin transversel of the machine and connecte at one en to said link, a spring carried'by said sub-lever near the other end thereof and through which direct connection is made with said tabulator stop to move it to effective position. v 14. In a typewriting machine, the combination of a carriagi, thereby, a support ed onthe frame of the columnstops carried -mounted thereon for movement into and out inacliine about centrally thereof, a singlepiece combined tabulator and anti-rebound stop member co operative with said column stops to effect ordinary or reverse tabulation and to prevent rebound of the carriage in either direction, said stop member being mounted for sliding movement into and out of effective position on said support, a key lever mounted near one side of the machine, a link connected therewlth, a sub-lever connected-at one end to said link, and a spring I rectly with said stop member to move it to carried by said sub-lever and. co-acting dieffective position.

15. In a ty'pewriting machine, the combination of a carriage, column stops carried thereby, a support fixed on the frame of the machine about centrally thereof, a singlepiece combined tabulator and ant i-rebound stop member co operative with said column stops to effectordinary or reverse tabulation -and to prevent rebound of the carriage in nected at one end to said link, a spring carried by said sub-lever and co-acting directly 'with said stop member to move it to efiective position, means for arresting the movement of said stop member to; effective position, a

feed rack mounted for releasing movement on the carr age, arresting-means for'limlting the releasing movement of the rack, and a combined feed rack releasing'device and 4 brake shoe carried by said sub-lever.

16. In atypewriting machine, the combination of a carriage; escapement mechanism therefor including a: feed rack mounted for movement on the carriage to releasing posi-v .tion; adjustable stops for limiting such releasing movement of the feed rack; tabulatorf being flexe mechanism ,including a column sto bar carried by the carriage, an adjustab e stop or contact that co-acts therewith intermediate its ends to revent the column stop bar from dlor bent, column stops carried by said bar, a co-operative tabulator stop, a. tabulator key therefor, and a rack releasing device controlled by said key and effective to force the rack with more or less force against said limiting stops and to act as a brake to retard the movement of the carriage. i

17. Thecombination ofa carriage, escapement mechanism therefor including a feed rack mounted on thecarriage for movement to releasing position, an adjustable limiting stop for positively arresting the releasing -movement -of'the feed rack, a carriagecan ried tabulator stop, a counter stop mounted on the frame of the-machine for limited movement into the path of the carriage carried stop, a key, ,a rack releasing lever constop tolift it tothe limit of its movement into the path of the carriage carried stop a during the actuation of said rack releasing '75 4 lever and thereafter permit a further continued movement of said lever to bring the rack against said adjustable stop and apply a brakingaction from said rack lifting shoe against the feed rack and thereby retard the carriage more or less dependingon the pressure exerted on said key.

Signed at Ilion, in the county of Herkimer and State of New York this 9th-day of May, ADJ-1925. 7

GEORGE A. SEIB.

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