US510653A - Machine - Google Patents

Description

, (-NoMoaeLj L 5sheens-sheet1.. J. SINCLAIR. TYPE WRITING MACHINE.

No. 510,653. Pawn-ted Deo. 12, 189s.

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(No Model.)

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J. o. SHVCLMR. TYPE WRITING MACHINE.

Patented Dec. l2, 1893.

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`(No Model.) ,K 5 Sheets-Sheetv. J. C. SINCLAIR. TYPE WRITING MACHINE.

Patented Deo. 12, 1893.

(No Model.) 5 Sheets-Sheet 4. J. C. SINGLAIR.

TYPE WRITING MACHINE.

Patented Dec. 12,v 1893.

(No Model.) 5 Sheets-Sheet 5 J. G. SAINGLAIR.

TYPE WRITING MACHINE.

`No.' 510,653. Patented Deo. 12,V 1893.

Afr-ENT FFICEQ,

JEREMIAH o. sINOLAIR, OF TOLEDO, OHIO, ssIGNOR or onlie-linuty To HOMER HOOD, OF SAME PLACE.

SPECIFICATION forming part of Letters Patent 116,510,653, daten December 12, 189s.

Appncaion ined August e, 1892.A

T0 all zul/1,0711, t may concern/.-A

Be it known that I, JEREMIAH C. SINOLAIR, of Toledo, county of Lucas, and `Itate of Ohio, have invented certain new and useful Imchine, and has for its'object to simplify thel construction, cheapen the manufacture, and render the operation easier than heretofore by dispensingr with the necessity of manually operating certain parts. f

The invention consists in the partsand combinations of parts hereinafter described and pointed out in the claims. f

In the drawings-Figure 1 yisa plan view of a sectional detail view showing the type bars and the connection of the key levers therewith. Fig. 4 is a front elevation of a portion;

of the carriage and carriage support. Fig."5 is a transverse vertical section on lines -x Fig. 1.

employed for returning the carriage, and also the mechanism for feeding the ribbon. Fig. 7 isa transverse section through the frame of the machine on lines y-y Fig. l showinga modified form of mechanism for returning the carriage, this mechanism being located at the end opposite to that shown in Fig. 6. Fig. Sis an edge view of the mechanism on the top plate shown in Fig. 7. Fig. 9 is'an end v iew of the mechanism shown in Fig. 7 looking directly attheend of the machine. Fig. 10, is a detail view-of the spool shaft and spool, showing the means employed for holding the spool in adjustment. Fig. 1l is a detail view of one of the pawls. Fig. 12 is a plan view of the cleaning brush and operating lever. Fig. 13 is aside view of the same.

The frame of the machine comprises base plate 1, top plate 2, rear end plate 3, curved Fig. 2 is'an end ele- Fig. 6 is an end View of the carriage, and carriage support illustrating the means' snainrmasg. Nomaden front plate 4 and frontend plate 5. Formed integral with the top plate at each end are two rectangular projections 6, into which are j Ournaledscrew-threaded shafts 7 upon which ismounted M'a carriage support comprising a front bar 8, end bars 9 and a rear rod 10. Journaled in end bars 9 is a screw shaft 11 extending the entire length of the Vcarriage support, and provided at'one end with a disk 12 having four projecting pins 13 with which the hook of 'a bar 14 engages to revolve the same when the bar is'pulled downward by a key lever 15 fulcrumed at 15v and normally raised at the outer end to excrt'a downward pull upon bar 14 by reason of a spring 16 secured at the base ot' the machine, and pressing against the under side of the lever. The bar-14 is normally held in engagement with pin 13, by means of a spring 14. See Fig. 2.

It will be seen from the foregoing that lwhen the outer end of lever 15 is depressed, v bar "14 is raised, and the hook of the bar ywill engage a pin- 13 when upon releasing the spacing key, the spring will raise the front end of the lever, and cause the rear end to be depressed, thereby revolving the wheel ya one-fourth turn which gives to the carriage the proper movement to space the letters, anyv further spacing being given by merely depressing the spacing key, as many times as necessary to advance the carriage the desired distance. I have provided however, for au vautomatic control of thelever 15 for spacing between `the letters-which consists in extending aV barY 17 at right angles to lever 15 and connected with the end, so that when any of the key levers are operated to print a character, it depresses the outer end of the lever 15 and when the key is released the same operation takes place and the screw yshaft is given one-fourth turn.

The carriage comprises a rectangular frame v IOO to the carriage in either direction, according to the direction of rotation of the screw shaft, the opposite or front side of the carriage being provided with traveler wheels 22 which roll upon bar S of the carriage support frame. Bar 1.4 being employed to revolve the screw shaft to advance the carriage when writing, I will now describe the means employed to revolve the screw shaft in an opposite direction to return the carriage.

Referring to Figs. l, 5, and 6,23 designates a gear journaled upon the right hand side of the machine within the frame, and meshes with a small pinion 24 secured upon the end of the screw shaft ll,there being a barrel 23 upon the gear, to which a strap 25 is secured, the strap passing below an idler pulley 26 secured in hangers attached to the base of the frame, and secured at the opposite end to the' end of alever 27 fulcrumed upon the frame at 27 and extending beneath the key board, and provided with a key. In this construction the revolution of the screw shaft to ad- Vance the carriage revolves pinion 24, gear 23, and barrel 23' and winds strap 25 upon the barrel, so that when it is desired to revolve the shaft to return the carriage, the outer end of lever 27 is depressed, causing a pull upon the strap, and a rapid revolution of the screw-shaft through the multiplying gears 23 and 24.

In Figs. 7, 8, and 9 I have shown a modified form of mechanism for returning the screwV shaft, Fig. 9 being a somewhat enlarged view. In this construction gear 23 is movable upon its shaft, but revolves therewith being secured by a key and a key way. Upon the same shaft with gear 23 is secured a :ratchet wheel 23 and brake wheel 29, there being a coiled spring 30 secured at one end to a pin 3la projecting from the frame the opposite end being secured to the ratchet wheel, so that when the ratchet wheel is revolved the spring is put in tension. and brake wheel 29 are revolved by means of a pawl lever 31, and pawl 32, lever 31 being connected with a lever 33 the outer end of the lever being provided with a cross bar 34 with which the key levers contact to cause the pawl to revolve ratchet wheel 23 one notch or the distance of one ratchet each time a character is printed, or a space formed. In order to hold the ratchet wheel against the tension of the spring, a pawl 35 is pivotally secured upon a bar 36 pivoted upon the frame in a manner to engage with the ratchet wheel and hold the same as advanced from return movement. By this arrangement the spring is put in tension as the screw shaft is advancing the carriage and being in slight tension initially, it is ready to return the carriageupon the release of the pawls 32 and 35 and engagement of gears 23 and 24, whether the carriage has traveled the distance to form but a character of a line, or the entire length. In order to engage the gear 23 with gear 24 and at the same time release pawl 35, I at- Ratchet wheel 23 tach a spring 37 to a lug 38 upon the frame and curve the spring centrally perforating it at this point to allow the spring to receive the journal of wheel 23, and attach the spring to the wheel so that the outward normal tension of the spring will hold gear 23 out of mesh with pinion 24, the lower end of the spring being inclined away from the wheel and bent at an acute angle at 39, there being a bar 40 bent at the upper end atan opposite angle to angle 39, so that as the bar is raised by depressing lever 4l to which bar 40 is pivoted, the spring is forced in carrying the gear 23 with it and forcing it into mesh with pin ion 24. Bar 36'to which pawl 35 is pivoted is formed with an angular arm 42, the end of which is in a path of travel of a pin 43, uponbar 40, and as the bar 40 is raised the pin contacts with arm 42 and trips the pawl (pawl 32 having normally dropped from contact with the ratchet wheel) thereby releasing the ratchet wheels, and allowing the spring to act upon the same causing gear 23 to revolve gear 24, and the screw shaft to return the carriage. Should the spring revolve the gears with too great rapidity, a further depression of lever 4l will apply brake 44 secured to bar 40 by means of an angular hanger 45, and check the speed of rotation of the same. As each type lever is supplied with upper and lower case type and characters, the carriage is moved forward to print the capitals, and this movement is accomplished by revolving screw shafts 7 thron gh the medium of quadrant shaped rack bars 46 pivoted to the frame at 46', and meshing with miter gears 47 upon shafts 7, there being levers 48 connected with rack bars 46 and operated by a key marked in the `drawings shift it being understood that the two levers 48 are connected by a cross bar 4S' so that the twolevers work in unison to revolve the quadrant rack bars to advance the carriage support toward the operator, the levers being raised to return the carriage by means of a spring 50 secured at one end to the up per portion 3 of the frame and bearing at the free end upon the lever, so that the carriage is advanced by rocking the quadrant rackbar, on depressing the key, and returned by the action of the spring, as it returns the levers to their normal horizontal position, and in the act rocks the quadrant rack bar to reverse the direction of rotation of the screw shafts 7.

5l designates the platen, revolubly journaled upon the carriage, and provided with a wheel 52 at the right hand side of the machine, by whch to turn the same manually, the opposite end being formed with a circular ratchet face 53 by which to automatically revolve the platen through the medium of a mutilated gear 54 journaled upon the carriage and meshing with a gear 55, also jonrnaled upon the carriage and provided with a pawl 5G which engages with the ratchet face 53 of the platen.

Gear 54 is formed with a depending' tooth IOO tog:

l54 having an inclined side adapted to ride over a catch 57 pivoted at the left hand side of the frame and allowed to swing outwardly sufficient to allow the .tooth to pass the same but prevented from swinging inwardly by a stop 57 so that as the carriage is returned, tooth 54 will ride over catch 57 and engage the same, andas the carriage moves to the right the gear 54 will be given a partial turn communicating a like motion to gear 55 and pawl 56, which gives to the platen a rotary lnovement sufficient to space a line, the spring 58 returning gears 54 and 55 to their original position.

In order to notify the operator of the near approach to the end of the movement of the carriage, I have provided for a plurality of alarms by means of a catch 59pivoted tothe carriage support and allowed to swing out of the way when the carriage is being returned, but prevented from swinging in an opposite direction by means of a stop 59.

60 designates a lever fulcrumed centrally vand formed with a plurality of notches 60 at .one end and a hammer at the opposite end adapted when the lever is depressed at the end upon which the notches are formed by riding over the catch, and allowed to rise by reason of the notches to sound an alarm by reason of the hammer striking a gong61, the alarm being sounded once for each notch, and again as the lever passes the catch finally, causingthre alarms if the carriage is moved to cause the lever to fully passthe catch the free swinging movement of the catch toward the left hand kside ot' the machine allowing the return of the carriage as the catch swings freely when the lever contacts therewith.

62 designates Ya guide for the paper comprising arms to which is secured a rod 63 by which to align the paper there being a guidev 64 upon the rear side of the platen.

I provide for a continuous wind of the ribbon in either direction by means of revoluble shafts upon the outer ends of each of which is secured wheels 65, having four projecting pins, with which the hook ends of bar 66 engage, the bars being hooked upon each side of their upper ends, and secured at their lower ends to a lever 67 operated by the key levers as the opposite end of cross bar 17 attached to lever l5` is secured to the end of this lever by which means a synchronous movement is given to bars 14 and 66, and the ribbon is advanced and revolved fromone spool 70 to the spool 70 upon the shaft upon the opposite side of the platen. The bar 66 is held in engagement with the pin of wheel by means of a spring 66 as shown in Fig. 5. When the ribbon has been wound from one spool to the other, bars 66 are shifted from one side of the pin-wheels to the opposite side to give a reverse movement to the spools. In order to shift the ribbon laterally to present a new surface to the type the spools are movable upon their shafts as shown in Fig. 10, and are held in adjustment by means of a spring dog 7l which engages notches' formed in the key which key prevents the spool from rotating upon the shaft.

72 designates an ordinary friction roller, for insuring a proper movement of the paper.

The type bars comprise each asingle rod or wire with a. horizontal portion 73, journaled in grooves formed in semi-circular boards 74 having top plates 75 of semi-circular contiguration, and formed with co-incident grooves so that the rods are closely confined but prevented from other than rotative movement. The rear ends 76 of the type bars are bent vertically downward from the horizontal portions, and are provided with the type and type characters usually employed in type writing both in small and capital letters, the capitals being arranged above the small letters. The opposite ends 77 of the type bars are bent horizontally at right angles to the horizontal portions and are connected with the key levers, which are right angled levers the horizontal portions 78 of which are fulcrumed upon a rod 79 and the vertical portion 80, connected with the type bar so that by depressing a key 8l the vertical portion 8O of the key lever rocks the horizontal portion of the type bar, and raises the end 7 6 to cause the same to contact with the ribbon and print the character. to regulate the movements ofthe key levers to cause each character to impact with the ribbon ,with the desired force, and to prevent an excessive impact, a bar 82 is arranged across the machine above the horizontal portionsof In order thelevers and provided with set screws 83,

one for each lever, and directly over each lever, whereby the nest adjustment may be madevto the movement of each lever.

In order` to assemble the type bars within the smallest area, and to cause the type` to strike at the proper point, in perfect alignment, the horizontal portions 73 are arranged at such an obtuse angle to the impact point of the type as will bring the type to a common point when eleva-ted.

In order-to clean the type mechanically, I provide a brush 84 ot' semi-circular form and secure the same to a swinging frame 85, which normally rests below the type, and arrangea lever 86 which when depressed at one end raises the brush and causes the same to retog1 IIO

movevany foreign substance from the type that may be thereon. The keys are formed with a horizontal portion with which the [ingers contact, and a vertically inclined portion 88 immediately in front of theoperator, and designed to receive the character to in dicate the particular key to be depressed, this arrangement being of great value as it presents the character in proper position to be more readily observed, than when placed upon the top ofthe key.

In operation, the carriage being at .the extreme movement to the left ofv the machine, and the paper properly arranged upon the platen, the operator depresses the keys in the act of writing, which depresses the outer ends of levers 15 and 67, revolving the screw shaft 11 by lever 15 and the action of,bar 14 upon wheel 12, and revolving the ribbon spools by the action of lever 67 and bars 66, until the carriage has advanced to its limit, the alarm being sounded in the meantime by lever contacting with catch 59, when the carriage is returned either by depressing lever 27 and pulling upon strap 25, or by depressing lever 41 and releasing the pawl to allow spring 30 to act. When carriage has returned the full limit of its return movement tooth 54 is in engagement with catch 57 when upon the forward movement of the carriage thegears 54e and 55 are given a sufficient turn to cause pawl 56 to turn the platen the distance to space a line.

If it is desired to use capitals, levers 4S are depressed causing the quadrant rack bar to revolve shaft 7 and advance the carriage support and carriage.

That I claim is- 1. In a type writing machine, the combination with a support, of a threaded shaft jonrnaled therein at the rear, the carriage connected with the shaft at its rear side, a disk upon one end of the shaft having laterally projecting pins, a hooked rod for engaging the pins, the lever attached to said rod and the key levers for operating the same.

2. In a type writing machine, the combination with a carriage and its support, of the transverse screw shafts upon which said support is mounted, the shifting lever and devices connected therewith for revolving said sc rew shafts simultaneously to shift the car riage. y

3. In atypewriting machine, a carriage support, a carriage supported thereon, a screw shaft j ournaled in the carriage frame, a screw threaded connection from the carriage to the screw shaft, a pinion upon the screw shaft a gear meshing therewith, a lever, exible connections between the gear and lever, means for revolving the screw shaft to advance the carriage and wind the strap, and a key for depressing the lever to unwind the strap and return the carriage.

4. In atype writing machine, acarriage support, a carriage supported thereon, means for movingthecarriagelongitudinally, and means for imparting a front and back movement to the carriage support, by means of screw shafts journaled in the frame and passing through threaded supports of the carriage support, gears upon the ends of the shafts and rack bars meshing with the pinions, and a key for actuating the rack bars to revolve the screw shafts.

5. In atype writing machine, aframe, screw shafts journaled upon each side, a carriage support mounted upon the screw shafts by threaded supports through which the screw shaft passes, a screw shaft journaled in the carriage support a y, carriage mounted upon the screw shaft by threaded supports through which the screw shaft passes, and means for revolving the last named screw tovimpart longitudinal motion to the carriage, and means for revolving lthe end screws to impart lateral motion to the carriage.

6. In a type writing machine, a carriage support, a carriage mounted thereon, a platen journaled in the carriage, and provided with a circular ratchet upon one end, a catch upon the machine pivoted to swing freely in one direction but rigid with relation to an opposite movement, gears upon the carriage one of which engages with the catch as the carriage is advanced from 4the limit of its return movement, a pawl upon an intermeshiug gear which contacts with the ratchet teeth upon the platen, whereby the platen is automatically revolved by the advance movement of the carriage.

7. In a type writing machine, an alarm mechanism, comprising a lever pivoted to the carriage support havinga plurality of notches at one end and a hammer at the opposite end, a gong secured in th-e path of travel of thc hammer, and a catch pivoted upon the carriage adapted to swing freely in one direction, but secured from movement in an opposite direction.

8. In a type writin g machine, a carriage su pport, shafts journaled upon each side thereof, ribbon spools upon the shafts wheels upon the outer ends of each shaft, projections upon the wheels, a lever fulcrumed upon the machine key levers pivoted upon the machine, and contacting to actuate said lever, bars formed with ends for engaging the projec- IOO

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