US1391798A - Typewriting-machine - Google Patents

Description

G. A. SElB. TYPEWRITING MACHINE.

APPLICATION FILED MAY 1 1920.

Patented Sept. 27, 1921.

2 SHEETS-SHEET 1.

INVENTUR WITNtEEES Z 711. M

H5 ATTURNEY e. A. SE IB. TYPEWRITING MACHINE.

APPLICATiON FILED MAY 1, 1920- 2 SHEETS-SHEET 2.

lNVENTDR Patented Sept. 27,1921.

WITNESSES UNITED STATES PATENT OFFICE.

GEORGE A SEIB, OF ILION, NEW YORK,

AS SIGN'OR T0 REMINGTON TYPEWRITER conn ng,- or InIoN, NEW YORK, A CORPORATION OF NEW YORK.

, I rxrnwnrrme-mncnmn.

.specificaaan'or mars en Patented Sept. 27, 1921.

Application filed May 1,1920. Serial No; 378,174.

To wll whom it may concern: I

Be it known that I, GEORGE A. SEIB, citizen of the United States, and resident of Ilion, in the county of Herkimer and State of New York, have invented certain new and useful Improvements in Typewriting: Machines, of which the following is a specification. 4

My present invention relates to carriage governors for typewriting machines, and its main object "is to provide new and improved carriage governing or controlling mechanism for regulating the speed of the traveling element or carriage of typewriting or similar machines.

To theabove and other ends which will hereinafter appear, my, invention consists in the features of construction, combinations of devices and "arrangements of parts to be hereinafter described and particularly.

with the top or upper side ofa toothed pinion pointed out in the claims.

In the accompanying drawings which illustrate the preferred form of my invention applied to a machine generally resembling the Remington typewriter,

Figure 1 is a fragmentary front to rear. vertical sectional view showing parts of a typewriting machine embodying my inventioni V,

Fig. '2 is a fragmentary plan view illustrating my invention and associate parts.

Fig. 3 isa vertical longitudinal section through the governor, said View being taken on a plane indicated by the dotted line 33in Fig.2 and looking in the direction of the arrow at said line.

Fig. 4 is a perspective viewillustrating the parts of the'governor separated from one another. p V

Fig. 5'is a plan view corresponding to Fig. 2 and showing the cover swung away to expose the interior of the cup or housing.

Fig. 6 is a fragmentary plan view corre- "ponding to Fig. 5 but showing the rel'ationship of parts of the governor when the carriage is moving backward or' in reverse direction.

.Figs. 7 and 8 are perspective views of details.

Figs. 3 and 4 are drawn on a larger scale than the other views. l

Themain frame of the machine, as illustrated in Fig. 1, comprises a base 1, posts 2,

and a top plate 3 above which are fixed grooved trackways 4 that cooperate through anti-friction rollers 5 witha traveling element or platen carriage comprising a rec tangular frame consisting of front and rear groovedbars and connecting side bars, the rear bar 6 and one of the side bars 7 alone being illustrated. Suitable printing instrumentalities (not'shown) cooperatewith the front face of the platen and are adapted to actuate the escapement mechanismwhich during letter feeding controls the leftward step-bystep movements of the carriage under the influence ofsuitable carriagemotor or impelling mechanism vcomprising a spring drum 8 pivoted on 'a stationary bracket 9 and connected by a band or strap 8 with the carriage. A releasable feed racklO is secured to arms 11 fulcrumed at 12 in ears 13 fixed to the rear part of the carriage. Said feed rack normally meshes 14 (Figs. 2 and 3) that is secured to an escapementwheel shaft (not shown), said shaft bearing ina bracket 15 fixed to the top plate, the rear end of said shaft being operatively connected withan escapement mechanism referred to above.

Tabulating mechanism bearing a general,

resemblance to the tabulating mechanism disclosed in my prior'Patent No. 1,132,286, dated Mch. .16, 1915, and embodied in some Remington typewriting machines, is illus- '80 wheel 16, comprised in the escapement" trated. in Fig. 1, said tabulating mechanism I comprising a rectangular stop bar '17 mounted on arms or bracketsfl8 secured Cooperative with the, column-stops are a set of frame stops or stop members arranged one above the other, only the lowermost frame stop, 21 being shown, said frame.

stops being suitably mounted in the head portion 22 of a stop "frame 23which is detachably secured to the mainframe of the machine at its rear. The frame stop 21 and its associates are each adapted to be actuated by a separate train of key actuated 25 on the frame 23. Each lever 24.- has associated with it a restoring spring 26 and the upper end of said lever cooperates with its frame stop to project it forward'into the path of one of the column stops when the associate tabulator key is operated. The lower end portion of the lever 24 projects forward horizontally at right angles to' the body of the lever, said-lower portion being.

pivotally connected at 27 at the rear end of a horizontally disposed link 28. The forward end of said link is pivotally connected at 2 9 with an angular lever member 30 fulcrumed at 31 and terminating at its front end in a forwardly extending finger 32. This finger slidably engages in an opening in a vertically disposed key stem 33 provided at its upper end with a cap ortabulating key 34, the upper end portion of said key stem passing through an opening in a guide plate 35 and the lower end being guided by a stationary guide plate 36 through which it passes. It will be understood that there are five tabulator keys 34 and associate trains of devices, each tabulator key and its train controlling one of the frame stops to project it into the path of oneof the carriage or column stops of whichthere are five. also.

It is preferredin the present instance to release the carriage automatically from the control of the escapement whenever one of the :tabulator keys 34c'is actuated, this train of releasing mechanism including the'g0vernor or speed regulator itself. The releastion 37 and two vertically disposed arms 38 I pivoted at31, the arrangement being such that thebail depends from its pivot and the horizontal releasing bar. 37 is disposed behind the vertical portions. of the levers 30 and in position to be actuatedby each of them. A coiled spring.39,. connected to the 4 f pivoted at 45 to a bracket 46 that is secured to the rear portion of the base 1. The lever member l4: has aforwardly extending arm or finger 4 A to which is pi-votally connected at 427 the lower end of an upwardly extending link 48, the upper portion of said link being curved or offset rearwardly and projecting through an opening 49 in the top plate The upper end of saidlink 48 is formed with a lateral hole which receives mg mechanism comprises a. U-shaped bail composed of a horlzontal bar or-body' por-.

a pin 50 projecting laterally fromthe-iearwardly extending portion or ear 51 of an angular bracket 52, that is secured by screws 53 to the right-hand sideof the governor body. A spring clip or finger 54:, riveted or otherwise secured to the side of the link 48, maintains said link engaged with the pin 50 and prevents accidental disconnection.

.Referring more especially to Figs. 1 to 4:, it'willbe seen" that the governor or carriage speed regulator comprises a body, designated generally as 55, preferably of cast metal, the body comprising a head portion 56 and a forwardly extending barrel or stem. 57 near the forward end of which is a cylindrical cross bar or bearing arm 58,.integral with the barrel at its under side and projecting laterally at right angles from it. The ends of the cross bar 58 are formed with depressions or seats which receive the reduced inner bearing ends 59 of screws 60, said screws having also threaded portions 61 of larger, diameter which are screwed into the upstandingears 62 of a- U-shaped bracket 63, said bracket being formed with an open, endedslot fiiand a closed slot65, which slots respectively'receive headed screws 66 and 67 that are threaded into the top plate 3 and adjustably fix the bracket 63 thereto. The construction is such that the screws 69 when threaded into the bracket cars '62 are fixed thereto and the screw ends 59 which are smooth and without threads provide in effect stationary pintles on which the governor contrivance as a whole may bearland may be swung up and down, its normal position beingat an incline. to the horizontal, as illustrated by full lines in Fig. 1, this position being maintained by the spring means 39 acting through the connectedtrain ofdevices. The barrel 57 is bored out, as indicated at 6 8, to receive a shaft 69 of considerably less diameter than the bore 68. The forward end portion of the shaft 6.9,. as best appears in Fig. 7, is reduced in diameter, the reduced portion 70 and thebody portion of the shaft forming a shoulder. .At diametrically opposite sides of the reduced end portion 7 0 the body of-the shaft is cut away or flattened, as'indicated at 71, the distance between the flats substantially corresponding to the diameter of the portion 70. Said portion 70 receives a pinionrnember 72, shown depinion member has been put in place the end of the shaft part 70 is upset to fill out the outer end of the bore which is flared slightly, the construction being such that as airesult of this upsetting the pinion member and shaft become substantially integral. The sleeve portion 74 fits in and is adapted to turn freely in the bore 68, said sleeve being in effect the forward bearing end of the shaftf An oil hole, indicated at 77 (Fig. 3) may be provided for oiling the bearing. The rear portion of the body 55 is cut out at its under side, as indicated at 78, this cut-out exposing part of the shaft 69. Mounted on the exposed part of the shaft within the cut-out 78 is. a collar 7 9 which is secured in 15* place by a set screw 80, the inner end whereof abuts against a flattened face 69 of the shaft. The forward face of the collar 79 contacts with-the front wall or sideof the cut-out .78 and prevents forward endwise movement of the shaft 69, rearward endwise movement being prevented by cooperation of the back of the pinion 7 3 with the endof the barrel 57.. Also arranged within the cut-out 78 and mounted on the shaft 69 is a gear member 81, this gear. member being disposed back of the collar 79 and compris-.

ing a circular set of crown teeth 82 and a collar portion 82 which receives a set screw 83 that abuts against the flat 69 and fixes the gear member 81 to the shaft 69. It will be observed from Fig. 3 that the rear end portion of the shaft 69 bears in a hearing opening 84 formed in the. casting or body 55 back of the cut-out 78-. The top of the head portion 56 of the casting or body 55 is cut out to provide a shallow circular depressionor seat, indicated at 85, and centrally of this shallow seat is a deeper depression or seat of lesser diameter, indicated at 86, :40

this depression 86 connecting with the cutout 78 as will be understood clearly. from Figs. 3 and 4:. Arranged centrally in this depression 86 is an upright bearingtpost, stud or screw 87, thelower end of which is reduced and threaded so that it may screw into a tapped hole 88. in the casting, thereby securingthe post'in fixed position. post or stud 87 provides a bearing for a pinion 89, which is formed with a hole to fit over and bear on the post, and isseated in) the depression 86, said pinion meshing with the crown gear82 As best appears in Fig. 4, the upper end of thefpinion 89 is reduced and squared to provide a rectangular head 90 that accommodates a spider, fan

or rotary pushing device 91. This spider which is accommodated in the shallow seat 85 comprises arms 92 arranged at right an gles to each other, there being four of these arms; Centrally the spider is formed with a square hole indicated at 93 to fitover the squared head 99 and engage with the sides thereof. the spider being adapted to rest on the upper surface of thepinion teeth 89 and being forced to turn when the gear 89 turns This by reason ot'its engagement with the head 90. The length of the arms 92 of the driver is such that they do not contact with the inner circular wall or boundary of the casing or housing within which they are seated. Disposed within the spaces formed by the arms 92 are slidable detached pieces or member-s94, there. being four of these members. These members which are loose in the casing resting on the bottom of the depression 85, are generally triangular in shape, having; two straight faces at right angles to each other, which straight faces are adapted to contact with the faces of the arms 92. The third or outer face of the plate or member 94 is curved, preferablyconforming to an arc of a circle somewhat less in diameter than the circular curve of the wall of the seat 85 with which said. curve-dface is adapted peripherally to engage. The dimensions of the members 94 are such that when they are nearest the center of rotation, which cen ter of course is coincidental with the axis of the post 87, each of said members 94 may contact at both of its straight faces with the arms 92 and then the curved surfaces of said members are separated from or out of contact with the circular wall of'the seat 85. The housing, casing, or cup within. which are arranged the detached members 94 and the spider 91 is provided with a circular cover 95, which is pivoted at one side on a shouldered screw 96 that is received in an enlargement 97 of the rim of the housing while at the diametrically opposite side a shouldered screw 98, received in a tapped hole in a corresponding enlargement 97, is adapted to cooperate with a book on the cover so as to maintain the cover closed, this being insured by screwing down the screw 98. until it engages frictionally with the surface of the cover surrounding the hook. In order to enable the cover to be swung back to the Fig. 5 position and expose the interior'of the housing, it is only necessary slightly to loosen the screw 98, after which thecover' may be pulled away, turning on the screw 96 as a center. h i

Referring to the operation of the mechanism, it will be understood that normally during back and forth movements of the carriage the feed rack 10 is presseddown and maintained in normal engagement with the feed pinion 14 while the pinion 73 of the governor lies belowand out of engagethe governor on its pivot 60 from the in-.

clined full line position of Fig. 1 to'the sub stantially horizontal position illustrated by dotted lines in said Fi 1 and b full lines in B 1g. 5. This swinging movement of the governor will bring the pinion 73 into engagement with the teeth of the rack and will swing the rack upward, disengaging it from the feed pinion 14 while connecting it through the pinion '73, shaft 69, gear 81 and pinion 89 with the pushing device or spider 91. As a result, if the carriage be permitted to run freely under the influence of its spring drum 8 toward the left, the pushing device 9i will turn in the direction indicated by the arrow in Fig. 5, this turning movement rendering one of the contact faces of each arm 92 effective. The effective conact faces aforesaid are radially disposed; that is to say, they are coincident with radial lines passing through the center of rotation of the device 91, such lines being indicated in Fig. 5 by the dotted lines ma. These radial contact faces 6 will act against the proximate straight faces of the slidable or detached friction pieces or plates 94 and will tend to push these pieces around ahead of said arms, the force applied through the arms to the pieces following substantially a path concentric with the center of rotation of the device 91. As the pieces 94: are pushed ahead they will be free to be acted upon by centrifugal force and by this forcealone said pieces will be, forced outward until their curved Jeri )heral faces or ed es frictionall engage with the inner curved wall or face of the casing or depression 85. of pressure exerted will of course depend on the speed atwhich the device '91 is turned, this speed corresponding with or being relative to the speed of advance movementof the carriage during its tabulating run. As the speed increases the pressure will increase and as the speed diminishes the pressure will lessen, so that it will be seen that a self regulating speed device or governor for controlling the speed movement of the carriage is provided, the/result being that the carriage will move smoothly and uninterruptedly and will'be arrested by its cooperating tabulator stops without shock or jar. On.

releasing the tabulator key the parts will be restored to normal position, as has been described, the limit of movement being determined by the contact of a finger 3O on the lever with a stationarypad or stop 100.

The present'invention also affords means for governing or controlling the speed of the carriage during reverse tabulating. Sup- Said connector 481 The amount engagement of said surfaces posing that one of the tabulating keys be actuated, as has been described, to project a;

frame stop andconnectthe governor with the carriage, and that then the operator pushes or thrusts the carriage by hand in reverse direction or from left to right. Then the rotary device 92will turn in reverse direction, as indicated by the arrow in Fig 6, and the othercontactffac'es c ofthe arms 92, opposite the radial contact faces b,willbeconic effective'o nthe loose or detached friction pieces or plates 96L. These opposite contact faces 0, which are at this time effective, have a different pressure angle from the faces Z). The faces 0 arenot radially arranged but are offset or disposed atangles to radii passing through any point on their surfaces and through the center of rotation. Owing to the fact that the faces 0 are non radial they have a different vaction-0n the sliding plates than the radialfaces b, and this different action causes (greater pressure of the peripheral faces oredges of the plates against the interior of the casing or cup than is caused by the radial faces I). The result is that when the carriage is returned andthe speed governor is connected thereto, the

operator will encounter considerable resistance to the return of the carriage and thus be prevented from throwing it too violently to the right against the reverse tabulator stops. v V p i It will be perceived that by the'present invention there is provided an exceedingly effective speed regulator or speed controller for the traveling carriage, which governor is effective both during tabulating runs of.

the carriage in one direction under the impulse-of its spring drum and is also effective during retuin movements of the carriage in the; opposite direction. The governor is comparatively simple and inexpensive, is strongly constructed and consists of few parts. which are not liable to become disarranged or get' out of order, andthe motions are-transmltted' through a comparatively short train of mechanism which reduces friction and unnecessary work and conduces to promptness and accuracy of operation.

Various changes may be made without ,departing from my invention.

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

1. A governor for regulating the speed of a traveling carriage; said governor comprising a loosely mounted movable friction surface, a relatively stationary friction surface, and operating means for insuring frictional through centrif ugal force alone.

2. A governor for regulating the speed of a. traveling carriage comprising a casing, a piece slidable withinsaid casing, a pushing device'and means for moving said device to housing and by centrifugal force alone cause "their surfaces to engage frictlonally with the wall of said housing. V o

4. A governor for regulating the speed of a traveling carriage comprising a casing, a

part loose in said casing and capable of centrifugal action, and :means for employing the centrifugal force of {said loose part to g tact faces,-one radial and one offset from a press against the face of said casing and to force said part to move relat vely to said casing when thus frictionally pressed agalnst it, the retarding effect on the carriage being due solely to the centrifugal force'of said loose part. 1 r

5. A governor for regulating the speed of a traveling carriage comprising a circular casing, a slidable devicewithin said casing provided with a straight face'and-a curved face, and a rotary arm provide'd'with a radial face cooperative with said straight face to insure frictional engagement of said curved face with the circular inner wall of said casing.

6. A governor for regulating the speed of a traveling carriage comprising a casing, a plurality of angularly disposed rotary arms within said casing, and pieces loosely confined between said arms, the rotary movements of said arms pushing against said pieces and compelling them through the action of centrifugal force alone to frictionally engage with the inner wall of said casing.

7. A governor for regulating the speed of the traveling carriage comprising a casing, a plurality of pieces loose within said casing, a pushing device provided wlth a plurality of arms one for each of said pieces, means for moving said arms to render them effective, said means comprising a pinion with which said device is connected through one part having a portion engaging in an opening in the other part, and a pivoted cover for said casing, which cover may be swung aside to permit the removal'of said pieces, said device and said pinion.

8. A. governor for regulating the speed of a traveling carriage comprising a casing, a

"single member composed of a plurality of arms angularly related to each other, said device being pivotally mounted within the casing, pieces supported on the floorof the casing and loosely confined between said arms, and automatically operative connections between said device andthe traveling carriage, said pieces being forced into frictional cooperation with the inner periphery of said casing through the action of centrifugal force alone. p 1 v 9. A governor for regulating the speed of the traveling carriage comprising a rotary arm having two contactfaces, one contact face being radial and the other offset from a radial position, two pieces separate from said arm and'against which said contact faces are adapted to push, and a relatively stationary surface with which said pieces are adapted to friotionally cooperate when acted upon by said arm.

10.- A governor for regulating the speed of a'traveling carriage comprising a casing, aplurallty of angularly related rotary arms within said casing, each arm having two conradial position, and pieces loosely confined between said arms, the rotary movements of said arms pushing against said pieces and compellingthem through the action of centrifugal force to frictionally engage with the said arms pushing against said pieces and compelling them through the action of centrifugal force to frictionally engage with the inner wall of said casing, said pieces being provided each with two straight faces for re spective contactive engagement with the radial contact face on one of said arms and the offset contactface on one of said arms.

' 12. A governor for regulating the speed of a traveling carriage comprising a casing, a plurality of angularly related rotary arms within said casing each arm having two contact faces, one radial and one offset from a radial position, pieces loosely confined between said arms, the rotary movements of said arms pushing against said pieces and compelling them through the action of centrifugal force to frictionally engage with the inner wall of said casing, and means for rotating said arms oppositely to render their depression, a rotary arm arranged in said depression, a friction piece controlled by said arm, and means for connecting said arm with said carriage when a governor is swung on its pivot, said connecting means comprising a pinion rigid with said arm, a shaft mounted on said governor and provided with a pair of gears, one of said pair of gears cooperating with said pinion and the other of said pair of gears being adapted for connection with the carriage.

, 15. The combination of a carriage, a releasable feed rack mounted thereon, tabulating vmechanism comprising a key'controlled stop, a pivotally mounted speed governor controlled automatically by said tabulator mechanism and comprising a casting formed with a seat or depression, governing devices within said depression, one of said governing devices carrying a pinion, and means adapted to connect said pinion with said rack, said connecting means comprising a shaft mounted on said casting, a crown gear at one end of said shaft constantly meshing with said pinion, and a gear at the said rack. 7

16. The 'COIIlblIliLtlOD of a carr1age,a reof April, A. D. 1920.

opposite end of said shaft engageable with lator mechanism and comprising a casting formed with a seat or depression, governing devices within said depression one of said governing devices carrying a pinlon, and means adapted to connect said pinion with said rack, sald connecting means comprising a shaft mounted on said casting, a crown gear at one end of said shaft constantly meshing with said pinion, and a gear at the opposite end of said shaft engageable with said rack, the construction being such that when the tabulating mechanism is actuated said last recitedgear engages with said rack to disconnect it from the escapement mechanismofthe machineand-toronnect it with said governing devices.

Signed at llion, in the county of Herkimer, and State -of New York this 26th day ,GEoRGE A. sans. "Witnesses E LINNIE F. BURNETT, v ELBERT S. ,Donon.

Images