US1053139A - Type-writing machine. - Google Patents

Description

A. W. SMITH.

TYPE WRITING MACHINE.

APPLICATION FILED AUG. 17, 1912.

Patented Feb.11,1913.

2 SHEETSSHEET 1.

INVENTDR:

WITNESEEi HiSATTURNEY A. W. SMITH.

TYPE WRITING MACHINE.

APPLICATION FILED AUG. 17, 1912. 1,053,139, Patented Feb. 11, 1913.

2 SHEETS-SHEET 2.

WITNESEES: |NVENTEIRH UNITED STA'. I I11S PATENT OFFICE.

ARTHUR W. SMITH, OF NEW YORK, N. Y., ASSIGNOR TO YOST WRITING MACHINE COMPANY, OF ILION', NEW YORK, A CORPORATION OF NEW YORK.

a TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Feb. 11, 1913.

Original application filed February 23, 1912, Serial No. 679,372. Divided and this application filed August To all whom it may concern: Be it known that I, ARTHUR IV. SMITH, citizen of the United States, and resident of the borough of Manhattan, city of New 5-York, in the county of New York and State of New York, have invented certain new and useful Improvements in Type-VVriting Machines, of which the following is a specification.

My invention relates to typewritin machines and more particularly to tabu ating mechanism.

The main object of the invention, generally stated, is to provide comparatively simpie and efiicient column selecting mechanism.

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 0 forth in the following description and par ticularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicate corresponding parts in the various views, Figure 5 1 is a fragmentary vertical fore and aft sectional view of a typewriting machine embodying my invention, only so much of the typewriting machine being shown as is necessary to an understanding of the invention.

0 Fig. 2 is a detail plan view, partly in section, of the tabulator or column selecting mechanism. Fig. 3 is a detail perspective view of the column selecting stop and the frame which carries it. Figs. 4, 5, 6 and 7 3 are detail fragmentary side views, each showing the rear end portion of one of the column selecting key actuated levers and the universal bar with which it cooperates. Fig. 8 is a detail perspective view of the J universal frame, by an actuation of which the carriage is released from the control of the escapemcnt mechanism.

The present case is a division of my application Serial No. 679,372, filed Februaiw So far as this invention is concerned. the printing instrumentalities and the means for actuating the same may be of any suitable character.

) The construction shown in the present instance, however, is embodied in a front strike typewriting machine in which a cylinq drical platen 1 is carried by a suitable car riage and, travels over the top plate 2 of the 17, 1912. Serial No. 715,590.

machine from side to side thereof, and in which the types are intended to strike against the front face of the platen. The frame of the machine comprises side plates 3, a rear cross plate 4, the top plate 2 here inbefore referred to, and a top plate 5. Fixed oppositely grooved guide rails 6 are secured to the side plates 3 of the frame and receive anti-friction rollers 7 which are likewise received in oppositely grooved rails 8 of a carriage truck 9. In this manner the carriage is supported for traveling movement from side to side of the machine. The truck 9 supports a platen frame 10 in which the platen l is mounted. Thccarriage is connected in the usual manner to a siidable spring drum 11 in the same geneiahmanner, for example, as in the No. Yost machine. This spring drum is effective to move the carriage in a letter feed direction under control of the escapement mechanism. The escapement mechanism in the present instance comprises a feed rack 1:2 carried by depending arms 13 which are pivoted at 14 to lugs 15, which latter project downwardly from the truck 9. Forwardly extending arms 16, on the arms 13, are adapted to contact with set screws 17 and to limit the swinging movement of the rack forwardly into mesh or engagement with a feed pinion 18. A leaf-spring 19 hears upon a rearwardly pro jecting arm 20 on each of the arms 13, to normally maintain engagement between the feed rack and the pinion. The feed pinion 18 is controlled by a suitable escapcincnt inechanisn'l, as will hereinafter more clearly appear.

The tabulator mechanism comprises a column stop bar 21 provided with teeth 22 on opposite sides thereof. Column stops 2;), which are preferably bifurcated [lat sheet metal stops, are adaptcd to straddle the stop bar and to be received in the interdcntal spaces between the teeth 22 on the column stop bar, so that the column stops may be adjusted to different lcttcr space positions throughout the length of the column stop bar. Each column stop carries a pivoted retaining device, designated as a whole by the reference numeral 24. Each of lhcsc dcvices is pivoted to its stop, as indicated at 25. and has an engaging portion 26 which is adapted to bear against the crown of an ad j acent tooth 22 of the column stop bar when the ends thereof; i t bei aft of the machine.

the column stop is in position thereon, to prevent an accidental displacement of the column stop from the bar. Each retaining device 24 is formed with a spring extension 27 adapted to bear against the forward edge of the associated column stop and press the engaging portion 26 of the retaining device against the column stop bar with sutlicient pressure to prevent the accidental displacement of the column stop from the bar. The column stop bar2l is mounted on suitable brackets 28 secured to upwardly extending lugs 29 formed on the c rriage truck near g understood that the column stop bar extends throughout, or substantially throughout, the length of the carriage. It will be observed that the engaging portions 30 of the column stops extend rearwardly different distances from the column stop bar and that four column Stops of different length are shown in the present instance.

A, single column selecting stop 31 is formed as a .part of an upright arm or lever 32, and extends through a guide slot formed in a plate 33 carried by the top plate 5 of the machine. a From an inspection of Fig. 3 itwill be seen that the arm 32 is formed as an upward extension of an arm 34 apertured at 35 for cotiperation' with a pivot rod 36. This pivot rod 'is' received in a depending portion, support or standard 37 of a cross bar 38 which issecured at its ends to the side plates 3 of themachine. The pivot rod 36 is secured in place in its bearing in the part 37 by a set screw 39. The lever 32-34 has a cross arm 40 riveted thereto at 41. The arm 40 is extended to form an arm 42 parallel with and similar to the arm 34. The arm 42 is likewise perforated as at 43, for cooperation with the pivot pin 36. A universal bar 44 extends between the two supporting arms 34 and 42 and is riveted at its ends to said arms. It will be seen that the stop carrging frame thus formed is pivotally supporte on the pivot rod 36 to aflord a swlnging movement of the arm 32 fore and A contractile spring 45 is connected at one end, as atj46, to the arm 32, and at its opposite endwto a plate 47 fixedto the r-ear 'cr0ss plate 4 of the frame.

The power of. this spring is exerted to nor-.

mally'maintainthe stop 31, or upper. engagin'g portion of the lever,32, in the position shown in Fig,- 1 and out of the path of the column stq'ps23. Four column selecting actuated'levers48, 49, 50/and, 51 are received and guided in slots in the supporting member 37 and :are apertured/at 52 for the. reception of the pivot pi'n p36. The rear end portions of these levers" are provided with engaging members 53 which extend beneath the universal bar 44 on the frame of the column selecting lever.

From aminspectionof Figs. 4, 5, (Sand 7 it will be-seen that the engaging portions 53 on the different column selectin levers are of different widths, considere vertically, and that the upwardly engaging faces therefore are normally arranged at varying distances from the universal bar 44. By this arrangement varying degrees of lost motion are provided between the difl'erent key actuated column selecting levers 48, 49, 50 and 51 and the universal bar 44, for purposes which will hereinafter more clearly appear. Each of these column selecting levers is also provided with an upwardly and rearwardly extending arm 54, apertured at 55 for coiiperation with one end of a contractile spring 56 which is connected at its opposite end, as at 57, with the late 47. Each of the column selectin key evers is also provided with a depen in contact or engaging portion 58 which is a apted to cooperate with a universal carriage releasing device or member, designated as a whole by the reference numeral 59. This member comprises a plate-like cross-piece 60 and parallel side arms or ears 61 which are a ertured at 62 for coiiperation with the pivot pin 36, the arms 61 being received and guided in slots in the supportin member 37. A centrally disposed, upward y and rearwardly directed lever arm 63 is riveted at its lower end to the cross plate 60 of this device in the rear of the pivot pin 36. The rear end of this arm is apertured at 64 for cotiperation with one end of a contractile spring 65 which is connected at its opposite end to the plate 47. The arm 63 is also apertured at 66 for pivotal connection with a two-part link 67 by which the carriage is released from the control of theescapement mechanism and is simultaneously placed. under control of the carriage retarding mechanism, as will hereinafter more clearly appear.

A set screw 68 is received in a tapped opening in the cross piece 60 and projects upwardly therefrom and is ada ted to contact with the cross bar 38 when the parts are in the normal position, as shown in Fig. 1. From an inspection of this figure it will be seen that the engaging portions 58 on the key actuated column selecting levers normally extend above the cross plate 60 of the releasing device and are adapted to coiiperate therewith at the last portion of the downward movement of the key actuated levers 48, 49, 50 and 51. This movement effects a turning movement of the member 59 on its pivot 36 to efiect an upward movement of the arm 63. The same movement of the key-controlled lever is effective to bring about an en agement between, the en aging portion 53 reef and the universal ar 44 to effect a rocking movement of the lever 32, and to move. the column selecting stop 31 forwardly a given distance, depending on 1,063, use

The extent of this forward movement of the stop 31 determines which column stop 23 the stop 31 will be brought into the path of. The forward end of each key controlled lever 48, 49, 50, 51 is provided with a reduced portion 69 which as received in a slotted portion of a key stem 70, which is guided in guide openings in upper and lower guide plates 71 and 72 respectively. The upper guide plate is secured to the frame of the machine by screws 73, whereas the lower guide plate is secured by screws'74 to in wardly-projecting lugs 75 in side plates on the right-hand key and indicatin of the frame. I

I From an inspection of Figs. 1 and Zit'will be seen that the upper end of each key stem is provided with a cold-inn selecting key 76, and that these keys bear column selecting indices suchas the numerals 1 2 3 and 4, the lowest numeral 1 being on the"lefthand-key and indicating the first column, and the highest numeral 4 being the fourth column. Thelower end of eac 1 key stem has a washer 77 thereon which is held in place'by a headedscrew' 78, received in a tapped opening in the lower end of the key ,stem. Each of these washers 77 is preferably made of fibrous material and is adapted to contact with the lower face of the plate 72, to limit the upward movement of its key stem and-the parts controlled thereby. The

. plate 7 2 is bent'downwardly' at the rear portion thereof, as at 79, to form a support for a-metallic casing 80, which is substantially U -shaped in' cross section and is adapted to receive a felt pad 81 against which the lower .ged ges of the key actuated levers 4'8, 49, 50

and 51 are adapted to bear to limit the downward movement thereof.

From an inspect-ion of Fig. 1 it will be seen that the feed pinion 18 is fixed to an escapement wheel shaft 82 bya pin 83. This shaft receives, a bearing at its upper end in a bracket 85, which latter is secured by screws 86 to a cross bar 87 fixed to-the side plates of the machine. The shaft 82 is supported at its lower end by a pivot screw 88 received in a tapped opening 89 in the mem' ber 37. An outwardly projecting flange 93 which is .operatively connected with the shaft 82 constitutes a support with which ,the hub 94 of an escapementwheel 95 cooperates. The escapement wheel turns freely on the shaft andis provided with ratchetlikeclutcli teeth 96 which extend upwardly therefrom. A spline 97 is fixed to the shaft -82 on opposite s des thereof by a pin 98 and bears atits lower end against the-upper hub of the escapement wheel and within the line of the. teeth 96 to prevent the escapementwheel from moving upwardlyon the shaft 82. 1 A sleeve 99 surrounds the 'escapement wheel shaft"82and- 1sprovided 'with a circumferential groove 100 therein Q'Tl iis sleeve 99 is slotted vertically on opposite sides as at 101 for the reception of the spline 97. This spline connection between the escapement wheel shaft- 82 and the sleeve-99 is effective to lock the sleeve to rotate with the shaft although a vertical movement of the.

sleeve on the shaft may be effected. Aclutch member or pawl 102 is formed on a yoke 103 which is pivoted at 104 onthe sleeve 99. A light spring 105 is connected at one end to the yoke 103 and-5t its opposite end tothe sleeve 99, by a'snrew; 106. Theforce of this spring is exerted to turn the yoke 10?) on its pivots to normally maintain theclutch tooth 102 in the lowermost or engaging position, and to maintain anengagemcnt between the clutch tooth 102 and the clutchVteet-h 90 on the escapement wheel.

A release member 127 is in-the form of two sheet metal strips riveted together at 128 and separated at the forward-end to form a yoke. This yoke is provided with inwardly projecting pins 129 which are received in the circumferential groove 100 in the sleeve or clutch section 99. The rear end of this member 127 is pivoted at 130 to a depending pin 131 received at its upper end in an opening in the cross bar 87, andfixed therein by a set screw 132.

The parts are normally disposed, as indicated in Fig. 1. A depression of a column selecting key 76 is effective to move'the movement of the stop portion 31 determines i with which column stop the selecting stop 31 shall be brought into cooperation, and what columnar position the carriage will be arrested in. The depression of the column selecting key is likewiseiefi'ective to turn the releasing device 59 on itspivot 36 to effect an upward movement of the link 67. This brings about an upward movement of the sleeve 99 from the position shown in Fig. 1. This movement. of the sleeve effects a disengagement between the clutch members 102 and the coopcrative clutch teeth 96 on the escapeinent wheel,

thereby freeing the carriage froin the control of the escapemeut wheel and the escapement dogs 133 and 13 1 that cooperate therewith.

From the foregoing description it will be understood that a depression of one of the column selecting keys 76 effective, todetermine the columnar position of arrest of the est extent of forward movement to bring it into the path of the first or left-hand column stop 23, thus arresting the carriage in the first columnar position; whereas if the right-hand or fourth column selecting key 76 be depressed, the stop- 31 will receive the shortest extent of forward movement so thatit will be brought into the pat-h of the engaging portion 30 on the fourth column stop, counting from left to right, thus enabling the first three column stops to pass the stop3l and to'etl ect an arrest of the carriage at the fourth columnar position.

It will be seen that the 'two universal bars 44 and 60 are pivoted on the same pivot rod 36 on which the column selecting levers turn; that these two universal bars are thus arranged .on opposite sides of the fulcrum of said levers and are mounted for independent movement; that each of the levers 48, 49, and 51 co-acts directly with both of said universal bars to move them in opposite directions, the universal bar moving downwardly at the down stroke of a key and the universal bar 44 moving upwardly; that each .of the key actuated levers 48, etc., acts on one universal bar as a lever of the first order and on the other universal bar as a lever of the second order; that the universal bar 60 forms part of a frame which constitutes inetfect a lever ofthe first order for releasing the carriage, whereas the universal bar 44 and the frame, ofwhich. it forms part, constitute in effect a lever of the third order and of which the columnselecting stop forms a part, and that the construction is such that the stop 31 may be given four extents of movement in but one direction from the normal position to cooperate with the column stops of different lengths.

\Vhat I claim as new and desire to secure by Letters Patent, is

1. In a typewriti'ng machine and tabulating mechanism, the combination of a carriage, carriage releasing means, a variably movable column-selecting stop, key actuated tabulator levers, and two independently movable universal bars arranged on opposite sides of 'the fulcrum of said levers and with which the levers directly coact to move the universal bars in -o posite directions at each stroke of a lever, tiie carriage releasing means being connected with one of said universal bars and the column selecting stop being connected with the other. a

2. In a typewriting machine and tabulat ing mechanism, the combination of a carriage, carriage releasing means, a variably movable column selectlng stop, key actuated column selecting levers and two independently movable universal bars arranged on opposite sides oft-he fulcrum of said levers and with which the levers directly to act to move the universal bars in opposite d rections at each stroke of a lever, the can riage releasing means being connected with one of said universal bars and the column selecting stop being connected with the other, and said levers having varying extents of lost motion in'their cooperation said column seing means being connected with-one ofsaid universal bars and the column selecting stop being rigidly connected with the other of said universal bars.

4. In a typewriting machine and tabulating mechanism, the combination of a carriage, escapement mechanism therefor, a variably movable column selecting stop, key actuated tabulator levers, and two independently movable universal bars arranged on opposite sides of the fuler'um of said levers and with which the levers directly'co-act to move one of said-universal bars up and the other down at the depression of any of said levers, a clutch by which the carriage is placed under control ofits escapement mechanism, and means for operativelyconnecting said clutch with one of said universal bars, the other of said b arsbeing connected with 'the column selecting 'stop 5. In a typewriting machine and 'tabulat-' ing mechanism, the combination of a carriage, escapement mechanismv therefor,

clutch by which the carriage is placed under control of the escapement mechanism, a se ries of key actuated stop controlling'tabulator levers, a universal'bar arranged beneath said levers and with'which the levers directly co-act, said universal bar being in the nature of a plate formed as an integral part of a ivoted frame which is in effect a lever of tii e first order, means for opera-j tively connecting said universal bar and.

clutch to release the clutch and free the car 3 riage when the universal bar is depressed,

and adjustable means for limitingthe return movement of said universal bar.

6 In a typewriting machine" and tahulating mechanism, the combination of a'carriage, escapement 'mechanism therefor, a clutch by which the-carriage is placed under control'of the escapement mechanism, a series of key actuated 'stop controlling tabulator levers, a universal bar arranged beneath said levers and with which the levers directly o-ac said universal bar being in the nature of a plate formed as an integral part of a pivoted frame which is in effect a lever of the first order, an upwardly extending link which is connected with said universal bar, a lever controlled by said link, and means for operatively connecting said lever with said clutch to release the clutch on the depression of a key lever and free the carriage from control of the escapement mechanism.

7. In a typewriting machine, the combination of a power driven carriage, a series of graduated column stops carried thereby, a pivoted frame carrying a column selecting stop and a universal bar, a series of key actuated column selecting levers which are cooperative with said universal bar to effect varying extents of movement of said frame and varying extents of movement of the column selecting stop into the paths of the graduated column stops, a slotted support or standard in the slots in which the levers and portions of the frame are received and guided, and a single pivot rod carried by said support and on which the selecting levers and frame are pivoted.

8. In a typewriting machine, the combination of a power driven carriage, a series of graduated column stops carried thereb a pivoted. frame carrying a column sele ting stop and a universal bar, and a series ,of key actuated column selecting levers which are cooperative directly with said universal bar to effect varying extents of movement of said .frame and varying extents of movement of the column selecting stop into the paths of the graduated column stops, said key actuated column selecting levers having varying extents of lost motion in their cooperation with said universal bar.

9. In a typewriting machine, the combination of a power driven carriage, escapement mechanism therefor, a clutch which renders the escapement mechanism effective to edit trol the carriage, a series of graduated column stops carried thereby, a pivoted frame carrying a column selecting stop and a universal bar, a series of key actuated column selecting levers WhICll are cooperative with said universal bar to effect varying extents of movement of said frame and varying extents of movement of the column selecting stop into the paths of the graduated column stops, escapement mechanlsm, and separate means controlled by said column selecting key actuated levers for effecting a release of said clutch to free the carriage from control of the esca ement mechanism when the pivoted frame s actuated.

10. In a typewriting machine, the combination of a power driven carriage, a se ies of graduated column stops carried thereby, a pivoted frame carrying a column selecting stop and a universal bar, a series of key tuated column selecting levers having varying extents of lost motion in their cooperation with said universal bar, escapement mechanism," a second universal release bar or frame with which all of said column selecting key actuated levers cooperate, and connections from said release frame to the escapement mechanism for effecting ,a release of the carriage from control of the escapement mechanism. v

ll. In a typewrit-ing machine, the combination of a power driven carriage, a series of graduated column stops carried thereby, a pivoted frame carrying a column selecting stop and a universal bar, a series of key actuated column selecting levers which are co- -operative with said universal bar to effect varying extents of movement of said frame and varying extents of movement of the column selecting stop in but one direction from it's normal position and into the paths of the graduated column stops, escapement mechanism, clutch mechanism which operatively connects the carriage with said escapement mechanism, a universal release bar or frame with which all of said key actuated column selecting levers cooperate, and intermediate connections between said release frame and said clutch mechanism.

12. In a typewriting machine, the combination of a carriage, column stops of different lengths carried thereby, a frame which is in the nature of a'lever of the third order, a column selecting stop forming a rigid part of said frame, a universal bar which likewise forms a part of said frame, and a series of key actuated column selecting levers cooperative directly with said universal bar to move it variably and thus effect vary ing extents of movement of the column selooting stop'into the path of a longer or shorter column stop depending on the particular selecting lever which is actuated, there being varying extents of lost motion between said levers and said universal bar.

13. In a typewriting machine, the combination of a carriage, column stops of different lengths carried thereby, a frame which is in the nature of a lever of the third order, a column selecting stop forming a rigid partof said frame, a universal bar which likewise forms a part of said frame, a series of key actuated column selecting levers cooperative directly with said universal bar to move it variably and thus effect varying extents of movement of the column selecting stop into the path of a longer or shorter column stop depending on the particular selecting lever which is actuated, there be ing varying extents of lost motion between said levers and sald universal bar, a second independently movable universal bar arranged beneath said levers and with which the levers directly co-act, and carriage releasing means controlled by said second universal bar.

14. In a typewriting machine, the combination of a carriage, column stops of different lengths carried thereby, a frame which is in the nature of a lever of the third order, a column selecting stop forming a rigid part of said frame,- a universal bar which likewise forms a part of said frame, a series of key actuated column selecting levers cooperative directly with said universal bar to move it variably and thus effect varying extents of movement of the stop into the path of a longer or shorter column stop depending on the particular se column selecting lecting lever which is actuated, there being varying extents of-lost motion between said levers and said universal bar, a second independently movable universal bar arranged beneath said levers and with which the levers directly co-act, said second universal bar forming part of a frame which is in the nature of a lever of the first order, and a carriage releasing clutch with which said second universal v bar is operatively connected.

Signed at the borough of Manhattam-city of New York, in the county of New York, and State of New York, this 16th day of August, A. D. 1912.

ARTHUR W. SMITH.

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