US814623A - Type-writing machine. - Google Patents

Description

7 N0. 814-,623.' PATENTED MAR. 6, 1906.

W. A. ROBBINS & B. s. HYATT.

TYPE WRITING MACHINE.

APPLICATION FILED SEPT. 27, 1904.

3 SHEETSSHEBT 1v No. 814,623. I I PATENTED MAR. 6 1906.

W. A. ROBBINS & B. S. HYATT.

TYPE WRITING MACHINE.

LP LIOATION FILED 821F127, 1904.

a SHEETS-SHEE'i" 2.

Witnesses zw fi Rttomegs m 814,623. I PATENTED MAR, 6, 1906. w; A. ROBBINS & B. s. HYATT.

TYPE WRITING MACHINE.

APPLICATION FILED SBPT.27,1904.

3 SHEETS-SHEET 3- Witnesses Attorneys UNITED s ATns PATENT OFFICE.

TEE It i'lORY.

WILLI'AM A. ROBBlNS AND BENJAMIN S; HYA'lT, OF V INITA, iNDIAN TYPE-WRETENG MAGHlNE.

Specification of Letters Patent.

Patented March 6, 1806.

Appl cation filed September 27, 1904. Serial No. 226,181.

To all whom it may concern.-

Be it known that we, WILLIAM A. Rosnnvs and BENJAMIN S; HYATT, citizens of the United States, residing at Vinita, Cherokee Nation, Indian Territor have invented a new and useful Typeriting Machine, of which the following is a specification.

This invention relates to type-writing machines, and has ,for its object to effect an automatie return of the carriage at the completion of its forward movement, thereby to obviate the manual return of. the carriage and to make possible increased speedin the maniputhe .tor'natic tri in the forward i g man pulation of the lation of themachine; In this connection it is proposed to employ pneumatic pressure for returning the carriage and to effect an auof the controlling-valve at rmt of the carriage, soas to set the pneumat'c return mechanism in operation independent of any manual controlling thereof.

While theinvention is capable of use in connection with any of the type-writing machines now in general use, it has been especially designed for application to the Remington machine and is also designed to provi efor raising theescapement rack-bar from escapement-wheel during the. return movement of the carriage, so as to avoid friction between and breakage of said par-ts. A still further object of the invention is to provide for automaticall feedin or rotating the platen at the comp etion o the return movement of the carriage, wherefore it will be understood that the-carriage and platen need no attention whatsoever, as theyare automatically controlled in order that the hands of the operator may be entirely free for keys only. With these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the accompanyin drawings, and particularly pointed out 1n the appended claims, it being understood that changes in the'form, proportion, size, and minor details ma be made within the scope of the claims wit out departing from the spirit or sacrificing any of the advantages of the invention.

In the ac'com a plan view of a ltenungton' tggpe-writing ma.- nhmeequ pped} with t e controlling mechan piston an its rod cap or sleeve 10, anymg drawings, Figure 1 is ism of the present invention, the top of the pressure-chamber being the controllingvalve o the pneumatic apparatus. Fig. 2 is a detail sectional view on the line 2 2 of Fig. 1. Fig.3 is a fragmentary perspective view looking at one end of the type-Writing machine with the carria e at its rear limit. Fig. 4 is an enlarged etail sectional viewon the line 4 4 of Fig. 1. Fi s'. 5 and 6 are detail elevations of the device or limiting the movement of the valve-actuating means. Fig. 7 is a fragmentary perspective View illustrating the means for automatically feeding the platen. Fig. 8 is a detail per. spective view illustrating the. means for automatically dise gaging the escapement rackbar from the escapement-wheel. Fig. 9 is a. detail sectional view on the line 9 9 0. Fig. 1.

Like characters of reference designate corremoved to disclose responding'parts in each and every figure of the drawings.

As hereinbefore indicated, the present invention is applicable to various forms of type-writing machines, the present disclosure being 1n connection with a Remington machine, a portion of the frame of which has been indicated at 1 in drawings, while 2 designates the ordinary form or carriage mounted to travel back and forth across the top of the frame and having the platenroller 3, all oil which parts, together with others shown, but not described, are common and well known ,and form no part of the present improvements. 7

In carrying out the present invention a c linder 4 is supported in rear and parallel wlth the top of the frame. of the machine by means of one or more brackets, one of which-has been shown at 5. Within this 0 linder there is a piston 6, having a piston-r0 7, pr jected at what will be termed the rear on of the cylinder, which is adjacent the right-hand end of the machine. The outer or rear end of the piston-rod is provided with a bracket-arm 8, which is rigidly connected to, the rear end of the carrier e, as indicated at 9, whereby the with the carriage. lar and carries upon its rear projected end a which is open at its forward the accompanying are carried by and moved The piston rod 7 is tubuend, so as to receive and telescope'upon the rear end of the cylinder 4.-' The b M racket 8 is" p q d d h u d rpinl iwhiehientemi the port.

' when the piston is moved forwardly with the the carriage; but seid valve is closed means of a end of the passage 22.

controlling-shaft 2, which pierces the presinner end of the shaft the rear open end of the piston-rod, and a hell-- cal spring 12 embraces this pin and bears in opposite directions against the bracket-arm 8 and the back of the sleeve 18. [9. limiting arm or rod 13 rises from the outer end of the bracket 8 and extends forwardly, so asto overlap the sleeve 10, with its forward .end passing loosely through a guide loop. 14 an having its forward end promoted laterally to form a stop-shoulder 15, against which the uide 14 is designed to engage and limit the orward movement of the sleeve under the pressure of the spring .12. The purpose of the spring 12 is to take up the jar upon the piston when the'carriage stops at the limit of its-rearward movement.

- At the front of the cylinder a pressurechambcr 16, supported upon a suitable admin cent portion of the frame of the machine i bracket 17 and in communication with a reservoir or supply-tent 18 by means of a suitable pipe connection 19. v The interior of the pressure-chamber is divided into two compartments, (indicated at 20 end 21,) the compartment 20 containing a suitable regulating-valveto maintain a constant pres sure within the chamber 21 less than that contained within the reservoir or supplytank. The compartment 21 of the pressurechamber 16 is in communication with the front end bf the cylinder 4 by means of a pipe or passage 22 and has a valve-seat or port 28 within thenornpartment and at the forward l Vithin the compart ment 21 is a substantially horizontal lever 24, .fulcrumed intermediate of its ends, at 25, upon a bracket 26, projected from one of the walls of the compartment, with its outer end provided with a substantially sernispher ical valve 27, normally closing; the port or valve-seat 23, there being a suitable spring 28 to yieldably maintain the valve closed. In. the passage 22 there is a vent ort or opening 29, which is controlled by a iihpwalve 30, having a guide projection 31 working through This valve is arranged to open carriage, so as to permit of the escape of arr from he cylinder, and thereby not interfere with tile srward movement of the piston and under the action of the'air entering from the pressure-chamber 16 into the cylinder in order that all of the force of the compressed air may be directed against the piston.

For controllinthe pivotal valve-stem 2 there is provide a substantially horizontal l sure-com'iertmefot 21 above and in substanl tial para lelism with the valve-stem 24, the being journaled in the bracket 26 with its intermediate portion passing through a suitable stuffing-box 33 in the viioll Of the chamber. A tapoet crank arm' 34. is carried by the shaft 32 within the pressure 42 and 43, designed for ,42 and 43 with the bracket.

the bar 39 in position for one or chamber and, in from-of the free end of the" valvcdstern 2f and-capable of engagement therewith to swing the valve 22 away from its seat, and thereby establish communication from the pressure chamber to the cylinder. At the outer end of the shaft 32 thereis a pendent crank-arm 35, and between the arm 35 and the pressure chamber is another crank arm 36, depending from thefshaft, with a spring 37 connected to the lower end of the arm and to a fixed. portion of the frame of the ably hold the crank trip-arm 35 ofthe shaft at one limit with the tappet arm 34 close to H or in engagement with t 1e swinging valve stem 24.

' machine, asindicated at 38, thereby to yield- 8c The spring-actuated movement'of' the shaft 32 is limited by means of a plungen rod 39, pivotally connected at the lower end of the crank arm. 36 wardly therefrom and working across the adjacent top portion of the frame of the machine, as clearly indicated iri Figs. 3, 5, and 6 of the drawings. A bracket 40 is rigidly secured upon the top of the frame and is pro jected in advance thereof, with its end provided with an upstanding slotted pro.- jection or 0st 41, through. is .designe to work. The under side of this.

projected.

and extending forwhich the red rod is provided with a pair of stop-shoulders alternate engagement limit the spring-actu shaft 32.

with the bracket 40 to ated movement ofthe A bowed. U

spring 44 is carried by the top of the rod and" works through the slot of the post 41, so as to bear against the 11 per end wall of the slot, thereby to yielda ly hold the bar down against the bracket, so as to insure the e n "a ement of one or the other of the shoulders} D To ma ntain the other the shoulders "42 and 43 to enga e the; bracket ,there is a slotted or link-shaped. eeper 1 45 disposed transversely across the rear on of the bracket 40 and pivoted, as at 46, thereon to swing vertically in the direction of movement of the bar and provided at one end with a lever 47 directed upwardly above the; carriage of the machine, whereby the keeper, 45 may be swung from one limit to the opposite limit. In the position of the keeper as shown in Fig.

5, with the bar 39 working."-

across the top thereof, thebar is freeto move vertically against the resistance of the spring 44, thereby to permit of the shoulder-12 pass T ing the frontof the bracket 40 until the'b'ar is stopped by the shoulder 43 engaging the bracket, whereby the bar 39 has its greatesfit' springactuating -movement. By manual manipulation of the crank arm 35 of the shaft 32 the bar 39 may be drawn forwardly until its free end passes the keeper 45, whereupon the handle 47 may be swung forwardly, so to elevate the slotted keeper for the, reception of the free end of the bar, wlmrebyv send free end will beheld down and the other shoulder 42 will eng ge the bracket,and therebylimit the spring-actuating movement of the bar 39 and t e shaft To provide for automatically 0 ening the valve 27 by the carriage of the mac me, there is provided a trip device, as best shown in Fig. 3 of the drawin s, comprising a. bracket 48, rigidly connects to the left-hand endof the carriage,-at the back thereof, and carrying an upright rocking pin or shaft 49, having a crank-arm 50 upon its upper end and a erank-arm 51 uponits lower end,,the arm 50 being extended rearwardly and in position to engage the crank-arm of the shaft 32 and pass heath the latter, as shown in Fig. 1 of t e drawings, so as to rock the shaft against, the influence of the spring 37, and thereby swing the tappet arm 34 away from the swinging valve-stem 24 until the trip-arm 50 escapes from the free end of the'crank-arm 35,

whereupon the spriri 37 will operate tor turn the shaft 32 t0 its normal position, which ,plnn er. ere :arm 35, it is held against displacement will result in the ta pet-arm 34 striking the swinging valve-stem24 to 0 en the valve 27, and thereby admit air uniizir pressure into the cylinder 4 against the-plunger 6 to automatically return the- :carnage to its right hand limit b reason of the-movement of the en the trip-arm 50 en ages the hy'means of a stop projection 52, pendent our the bracket 48 and-engagingthe lower crank-arm 51. After the arm 50 disengages the arm 35 and reengages the same upon its opposite" side during the return movement of the carriage the arm 50 will wipe ast the crank 35 and when disengaged there om will be returned to its normal position under the influence of the spring 53, which is coiled about the pivoted portion 49 of the trip.

It will here be explained that, the bar 39 is originally set to have its front shoulder 42 contact with the stop 40, and after the apparatus has been in use for some time and the set to have its shoulder 43 engage the stop 40, so as'to obtain a greater movement of the rod 39 and a comparatively greater movemeht for the tappet -arm 34, whereby said arm strikes the pivotal valve-stem 24 with greater momentum, which opens the port between the case 16 and the cylinder 4 to a greater extent and for a greater length of time in order that the pressure upon the piston 6 may increased, so as to make up for the redub- 1 a oi pressure in the supp] 'tank 18. it is proposed to throw t e escapement of --thecarriage out of operation during the return movement of the carriage under the influence 5 of the pneumatic carriage-operating mechanism, and this feature is carried out as llustrated in Figs. 8 and 9 of the drawings, wherein the reference character 54 designates the vertipally-sln'ftable cscapement rackbar normally in engagement with the upper peripheral portionof the idle escapement ratchet-wheel 55. Ordinarily the escapement-bar 54 is manually shifted out oi engagement with the es capeinentwvheel, and in providing for the autome-tic disengagement of the bar a trip device is mounted upon the bar, consisting of an upright spring-pressed post or pin 56, mounter. in a suitable bearing 57 upon the front side of the rack-bar with its upper end terminatin in a cranherm 58, projected forwardly, anc its lower end terminating in a harwardly-projected crank-arm 59, provided with :1 antifiiction-roller 60. In front of and below the rack-bar 54 there is provided a shift rail or track 6l,terminall supported at itsleit-han'd end upon a suitable base-plate or bracket 62,]

suitable manner.- Inverted substantially L- shaped posts 65 rise from the bracket 62 in front of the track 63 and support a trip-bar 67, disposed in front and also above the rack 54- and. in. the path. of the trip-arm 58 in the forward movement of the carriage. V /hen the carriage is at its rear or right-hand limit, the foot 59 of the trip device travels beneath the track 61 until the trip-arm 58 engages with the trip-bar 6'7, whereupon the arm 58 will swing rearwardly, and thereby throw the foot from beneath the track until the trip device disengages the bar 67, when the spring-actuated trip device will return to its normal position under the influence of its spring and the foot 59 will engage the upper side of the inclined portion es of the track, thereby to elevate the rack-bar 54 out of engagement with the escapement-wheel 55 during the re- 1 turn movement of the carriage. At the rear limit of the carriage the foot 59 runs ofi of the unobstructed rear end of the track 61, thereby permitting the rack-bar 54 to gravitate into I This tripping of the escapeinent device is of Ieourseautomatic and requires no'manual manipulation whatsoever. In addition to tripping the escape-ment of the carriage it is also designed to automatic ally feed or rotate the platen 3, the mechanv ism for carrying out this feature being shown I in Figs. 1 and '7, wherein has been shown the usual hand-lever 68, provided with the dog or pawl 69, cooperating with theratchet 70 at theri-ght-hand end of the platen 3. Lpon i the upper and inner portion of the lever 68 there is provided a bracket 7 i, projected at the right of the lever, with an arm 72 carried by the bracket and extended rearwardly i aizross the adjacentend of the carriage into erank-armfi i upon a substantially l1orizontal sh'ait 7- mounted in a bearing-bracket 75, secured to the rear portion of the right- I hand end. of the frame of the machine. A

engagement wi h the escapement -'wheel.

RIO

the path of the downward movement of a ben, and a trip thereby trip the valve.

' vice tojtrip the ,of-the trip mechanism.

7 the crenl she-ft disposed in forward movement ol the trip loractiuition thereby to trip the v pendent crsink-erm 7G is provided upon the rear end of the shaft 74 in position to engage 2L spring-pressedvertically-swinging tri'p lin k 77, mounted upon the top oi the frame of the machine. During the letter port of the return movement of the carriage the crank- SLI'III 76 engages the link 77 end throws the latter upwardly and reerwu-rdly against the post 78, when the hull becomes fixed and the arm 76 is swung lmchwcn'llv,therchy swing ing the crank-arm 73 downwardly against the arm 72, which tilts the lever G8 upon its fulcrum 79 and moves the dog 69 forwardly, so as to rotate the pluten one or more notches, according to the rel tion of the sx-verul 'inrts I N hen the carriage moves forwardl y, the trip mecnnnisni grnvh totes to its normal position, whereby the parts are again in positimi for octuution by contact of the arm 7e with the trip-link. 77 upon the return movement oi the carriage.

Having fully described the invention, what is claimed is '1. ln u type-writing nntchinc, the combination with the frame and the carriage thereof, of automatic cm'rioge-return i'neclun'iism comprising n, cylinder, a piston, a pistoi'i-rod, a connection between the piston-rod and the carriage, a pressure-clunnber, u valved coinmunication between the chamber and the cylinder, vwlve-controlling means including a crank-shaft proj ectcd on t cruelly-oi th e chenimounted. upon the carriage to on age the crunl: oi the crank-shalt at the forward limit ol' the carriage i'ni'ivement an 2. Inn typc-writing mac e, the combination with the carriage thercoi, oi pneu- Inetic currisgz-return mechanism including o normally closed v alve huvin a pivotal stem, at spring cctuuted crank-short having :iinppet-arm for engagement with the salve-stem to swing the latter upon its pivot, and a trip mounted upon the carriage with the (trunk ol" the path of the slve Lt the 'lorwurd limit of the carriage.

3. The combination with the frame of a tv e-Writing machine and the carriage theref,'of automatic carriage-41 1'urn mcclmnism including a valve, :1, movable vnlvwconlmlling device, a spring; extending between the controlling device and the mine oi" the innchine, moons to limit the inovmnent oi the controlling device under the influence of the spring, uncle trip mounted upon the curriuge for engagement with the 'alve-controlling dene against the influence of the spring.

y 4. The 001 e-writing machine and bination with the 'lrameo'f a the carriage there in movnbie control-- ling device, it spring to yieldsbly maintain l the controlling device at one limit, movable l means connected to the contiolling device tol limit the movement, of the same underthe in. lluenoe of the spring, and a trip mounted upon the carriage totri'p the valve-controlling device against the influence of the spring.

5. In at type-writing machine, the a'zomhi nstion with the eerriagc thereof, of neurnutic curriuge-return mechanism inclu ing it normslly closed valve, at controlling crank shalt therefor, a spring connected to the crcnlnshal't, s, movshle lii'niting device con nected to the shalt, it stop curried by the frame of the nicchine with the limiting de vice normally engaging thestop, 51nd a trip i'noimt'cd upon the carriage innosition to en gage the erzmh oil the'shuft and trip the-some against the uctionol the spring at the ion nrd limit of the carriage is open the valve.

l l l l. l l

(3. The eon'ibinution wit-.1 th li ct 'tv iewi'iting machine and the c *1 e tl'l i mesh t, a s mg extefo guged with said stop, and a trip mounted upon the carriage andloc'sted to engage the crank of the the forward valve. v

7. The combination with. the Ere-me of e tvpe-writingmachine and the carriage thereol", ol' meui'nutio cncrriuge-retixrn mechanism including a valve having a coi'itrollingcrsnkshu l t, an arm uponthe shalt, spring con nected to the arm and to the frame of the machine, it slotted stop upon the frame, c limiting-bur pivoted to the arm and working through the slot of the stop, the our being provided with a, succession oi shoulders for 1 individual engagement with the stop to limit the loiwurd inoveinent of the bar, a sn'ing to vieldubly maintain the banut one limit of the limit of the carriage to open the slot, menus to udjustobly guide the her for contact of any oi its shoulders with the stop,

and a trip mounted upon the cursiege for engagement with the crank of the shalt to trip lhesnme and open the valve at the 1301- I word limitol the carriage. x f

i S. The combination with the imme ot a type-writing; machineundthecurriege therel of, of i 1 including a valve having-u controllingcmnkshalt, an arm carried by the shaft, a spring connected to the ,a-i'm and the frame of the machine, u slotted stop upon the theme, a,

\ limiting-bar pivotully connected to the arm l and workinsgin the slot, one edge of the be? being provided with stepped shoulders for individunl engagement with the stop to a? justcbly lent the I spring-actuated movef d the name of the i crunk-shelt and trip thcluttei? st ,meumetic cerriage-i'eti'u'n mechanism and provided with upper and lower substantia y horizontal cranl .-arms, one of the arms being located to engage the controllingcrank, a stop for engagement by the other to prevent yielding of the first-mentioned arm when engaged with the controlling-crank, said trip ble of wiping est the cranl movement oi the carriage, and

combination with the frame of a type-Writing machine and thecarriage therepneumatic carriage-return mechanism in avalve, a sprung-actuated valve- 13. l

(7 connected to the controlling evice and ro- I mechanism including a cylinder, a piston a vided with a succession of stop-shoulders, a piston-rod projected at one end of the cylinstop carried by t e ame in cooperative reder, a rac et carried byth device caper" during the return type writing machine, 01 carriage return rision the slidahle movement 0 the plun er-rod mg a rocking link mounted upon the heme upon the bracket at the 'rear limit 0 t e car- 85 to alternately receive and lie beneath the bar, riagc.

14. The combination with the carriage of a type writing machine, of carriage return mechanism including a cylinder, a iston, a piston-rod projected at one end of t e cyhnder, a bracket carried by th slidab a handle forcontrolling the link, and a trip mounted upon th with tire same against the influence of t e forward limit of the carriag 10. c e combination with the frame of a type-writing machine and the jected end of the piston-rod ally embracing the cylindenand a spri butler interposed between the sleeve and the racket. Y L

15. The combination with the carriage of a itln -bar plvoted to the arm and worlnn type writing machine, of carriage return the ower portion of the slot with its unde mechanism including a cylinder, :1 iston, a side IOVl ed with steppedshoulders for in piston-rod projected at one end .of t e cylindivi ual en" agement with the sto a s rm er with its projected end provided with a, carried by tile bar and working t oug ,the longitudinal socket, a bracket carried by the 7 carriage and provided pi in the socket of the piston-r0 a sleeve carried by the piston-rod-and'tele opically embracing the cylinder, and a hehcal sprin emracing the pin and bearing against the s eeve and the bracket to cushion the plunger. I he combination with the carriage of a type-writing machine, of carriage-return slot in engagement with the upper end there of, a vertically-tiltable link t e ame to alternately receive and he 11 telescoping ment thereof, and a tri u on the carria e to engage the crank of tli e sliaft and same against the influence of thespring at e orward limit of the cairia e.

1 1. The combination with the carriage of a d rojected at one end of t e cyhntype writing machi et carried b the carriage, the piston-rod having a slide le connection with the bracket, a spri 'enga 'ng the bracket and the piston-rod to yielda ly force the latter away from the bracket, and means extending between the bracket and the p1st0nrod to limit the spring-pressed movement piston-r der, a brac crank-arm during the forward movement of t e'carriage, said trip device capable of WI t ereof. I

ing past the crank-arm uring the return 1 7. Thecombinat on-wlth the carriage ofa movement of the carriage and means to re- 1 type-writing machine, of carriage-return mechanism including a cylinder,'a iston, a

piston-rod projected at der, :1 brac 8i carried ge return piston-rod having a slidable connection with crank, the bracket, a sleeve carried y the pistondevice comprising an upstanding rod and telescopicallyembracing the cylinrotatable shaft mounted upon the carriage I der,

after I'EiPfiSSiIlg the crank.

hecornbination with the carriage of a one end of t e cylinby-the carriage, the

mechanism including a'cylinder, a iston a a spring bearing 1n opposite directions 3 erm eerrie d- 1 her consisting gem-m d "and the bracket, an y the bracket end overiep ping the sieeve, e guide eefi'ied by the sieeve and telescopically receiviog'the arm, and a shoui def/u on the en'njiii front of the uide to t e spring-pressed movementoi' the pi- W l- 0 gainst the 18. in e type-writihg'machine, the combi- {netion with a shiftobi "means for automatically shiftin the resig- & ting device e escepement rack,

of a track,

"eorried by the reek-bin? mind having a portion vice to move the same 'rmge, and. means traveling against one side of the track in the forward movement of I the carriage and. against the opposite side of the track in the reverse movement 01 the eel-liege to maintain the reek-bar m an inoperative position, a, trip located in the pethof the shifting doout of engagement with the treok at the forward. limit of the earto direct the shifting device to the opposite side of the track upon'the reiriorement of the carriage to'shiit the reek her.

i'g "e-e io itmg Machine, the combi- 'iiationrrith e shiftabie escepement rook-bar,

' riege, the inciined end of the track operating to eievete the roeieshuft and the rack-her during the return movement of the carriage. in testimony that we claim the foregoing as our own We have hereto aflixeii our signetures in the presence of two witnesses. WILLIAM A. ROBERTS.

BEN JAMZ'N HYATT. Witnesses:

J. L; QIIELLION, (3. B. it" imormiost beneath and against

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