US980276A

US980276A - Type-writing machine.

Info

Publication number: US980276A
Application number: US55349810A
Authority: US
Inventors: Ward S Ireland
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-04-05
Filing date: 1910-04-05
Publication date: 1911-01-03
Anticipated expiration: 1928-01-03

Description

w. s. IRELAND. TYPE WRITING MACHINE.

. APPLICATION FILED APR. 5l 1910. 980,276, Patented Jan. 3, 1911.

3 SHEETS-SHEET 1.

INVENTOR ITNESSES W., S. IRELAND. TYPE WRITING MACHINE. APPLICATION FILED APR. 5, 1910.

Patented Jan. 3, 1911.

3 BHBBTS`SHEET 2 Patented Jan. 3, 1911.

3 BHEETS-SHBBT 3.

W. S. IRELAND. TYPE WRITING MACHINE. APPLIoATIoN FILED APR. 5. 1910.

WARD S. IRELAND, F DALLAS,` TEXAS.

TYPE-WRITING MACHINE.

y Specification `o1! Letters Patent.

Patented Jan. 3', 1911.

Application tiled April 5, 1910. Serial No. 553,498.

Im rovementsin Type-Wri'tin Machines;

an I do hereby' declare the fol owing to 'ple t eA a full; clear, and exact description of invention, suchas will enable. others skilled in theart to which it appertains to make and to ribbon mechanism therefor, the

, limprovements plan view with the frame of 'shown in the drawing after each manipulation of a key or keys,

use the samen4 This invention relates to improvements in typewriting machines and m'ore particularly same be-y ing' shown in the present instance on a -machine adapted for stenographicv` writin The object of the linvention 1s to simple"`and eflicient means for feeding the inklng ribbon and for insuring the reversal of the feed.

With this1 object in view the invention consists in certain novel features of construction and combinations of arts as herein after set forth and pointe out .in the claims..

yIn the accompanying drawings, ,Figure 1 is a longitudinal sectional view of a" stenographic typewriting machinev having my applied thereto. Fig. 2 is a the machine in section. Fig. 3 is a transverse sectional viewand Figs. 4, 5 and 6 `are detail views.v 1 represents the frame of the machine in which va series of `key-levers 2 is mounted and provided with suitable keys or but- -tons 3. A platen roller 4 is mounted in the upper portion of the frame near the central ortion thereof and above this platen an inking ribbon 5 is adapted to ass. Typebars 6- are pivotally mounte u on the frame 1 and connected by adjustab e rods 7 with the key-levers 2. The key-levers are 4sustained in their normal position by means of springs 8 andl these sameI springs serve, throu h the mediumofthe ke -lever's and thev roigis 7, to maintain the .type-b elevated positions as shown inFig. 1. It is ap arent that when a ke is depressed, a typear will be moved ownwardly and its type caused to strike theinking ribbon and print a character upon a stri or sheet of paper on the laten roller 4. he paper strip or sheet 9 om a supplyroll 10 passes about the platen roller as clearly shown'in Fig.' 1 an `a paper feed mechanism 11 is for feeding the paper have invented certain new and useful `ing ribbon provi e E ywhen a' key-lever is ars in thelr.

33-34 are mounted `but as this mechanism forms no part of the invention to be hereinafter pointed out in the claims, it need not be further described.

Reels 12--13 for the inkin ribbon 5 are carried by shafts 14 mounte in the frame 1 and these shafts are projected be ond the rear end of-saidframe' and provi ed with crank-arms 15 for turnin said shafts and the reels thereon to manua l wind the inkon to one of sai reels from the othen Each reel shaft 14 has secured thereto a beveled pinion 16 to mesh with beveled pnions 17 at or near the outer ends of two shaft sections 18-f-19 mounted in Isuitable bearin s in the framework. Mounted in `a plane elow that of the shaft sections 18 19, is a shaft 20 provided wi-tharm in which pawls 22 are pivotall supported for coperat-ion withy ratchet w eels 23-4-23 secured respectively to the shaft sections 18-,-19. Each pawl 22 is made with aA wei hted tail member 24 for a purpose here a' rod or pitman 26 1s plvotally attached,- the upper end of said rod or pitman being connected `with an arm 27 ony a shaft 28'.-

The shaft28 is also provided with arms 29 connected4 by means 'of rods 30 with a univesalybar 31 disposed under the key-levers. From this construction it is; apparent that depressed, mot-ion .will be im arted throu h the medium of the'universa' bar and ro s 30 to the shaft 28 and from the' latter,l through the medium of the rod or pitman 2G to 2O foroseillat-irgx thel latter and operating the pawls 22. e mechanism Iis such however that when the awls are thus operated, onlyone of them wi l coperate with the advjacent ratchet wheel 23 and therefore only one' of the reel shafts (18 or 19) `will be s1- tively actuated v to reel the inking ri bon and cause the same to be fed over the. platen roll 4, from one ribbon reel to the other. order to prevent retrograde rotation of the reel shafts, they are engaged by dogs 32 loosely mounted onl the shaft 28,but the dog 32 which/engages the .ratchet wheel 'which is, not being positively actuated will be held out of 'co erative relation to said ratchet wheel. For t e purpose of shifting the pawls 22 and dogs 32, the devices now to be explained are em loyed.

Two ongitudinally movable shafts or rods 1n the sides of the frame the arm 25 on the shaft 1 and are connected by cross-bars 35 which' cause said rods or shafts to' move together them manually, one of said" or shafts is extended at both endsgbe" -yond the sides of the I with knobs'36. The" rod or shaft 33 is and for, moving rods vframe l andfpl'cdvided ro- Iided with two cams 37 andthe rod or shaftl 34 is 'on-eac of said shafts being so disposedthat when the shafts are moved in one direc tion, the pawl 32 which engages one of the ratchet wheels 23 will be raisedout of cooperativel relation with said ratchet wheel andone ofthe cams on the rod or shaft 3 4 coperating-with the tail 24 will move the pa-wl 22 out of operative relation with the same ratchet-wheel. At the same movement will operate to permit the dogs or

pawls

22 and 32 to 23 on thed other reel shaft. The rod or shaft 33 is made near one end with recesses 39 to be engaged by a small roller 40 carried at the end o f aspring arm 41 for retaining the shift shafts or rods 33 34 in the position'to which they maybe 'moved aving described the manner of operating `the inking ribbon reels when the key-levers are operated, and also the manner of manually ,shifting this mechanism to cause one or the other of the ribbon reelsttobe positively actuated, I will proceed to describe the means whereby this shifting is effected automatically when the inking ribbonshall hatl'e been fully unwound from one of the ree s.

Each ribbon reel is provided with a lil-1b- 42 projecting laterally therefrom and provided withfa recess'43 and adjacent to the base of this recess, one head or disky of the reel is provided with an opening 44. The

recess 43 isnormally covered (when ribbon .is wound on the reel) bya trip-plate 45 as shown in Fig. 4, and thistrlp-plate is made with an extension opening 44 in the reel disk and partially embracing the core of the reel@ The trip-plate is pivotally attached at one`end ,to one end o f. Ithe hub 42 and the extension 46 of said' trip; late is pivotall su 'orted at itsfree end irri the reel disk oy pospilie-v the one having the opening 44. Eac vided with aweighted arm 47 so that when the inking ribbon shall have been fully unwound and therefore the extension 46 of the trip-plate has been released, the weighted turn 'said/ trip-plate andarm 47 will act to open the recess 43 rin the hub 42. rIwo arms 48 are pivotally supported at their lower ends in the lower ortion of the framework and provided att eir upper ends with lat'- eralextensions 49 carrying rollers 50 to norma hubs 42 ofthe ribbon'reels, in Fig. 4, and these rollers are pressed attached to4 the arms 48 and to a of the framework. Arms 52 are rovided with two cams 38, the cams the other cams thereonl coperate with the ratchet' wheel 46 projecting through the trip-plate 45 is proy run against the peripheries of they as clearly shown` s )rings 5l lxed part adjustably secured to theI cross-bars 35 and provided at their free ends with .hooks 53 to coperate with pins 54 on the arms 48.

When the inking ribbon shall have become against said hubs by the action of Aexhausted from one of the reels and the tripplate or gate shall have been swung outwardly by the action of its weighted arm 47, the laterally projecting portion 49 of the arm 48 will enter the recess 43 in the reel hub 42, being caused to thus move by the action of the spring 51. When the Iarm 48 is thus permitted to move, the pin 54 engaging lthe hooked end of the adjacent arm 52 will cause the shafts 33-34'tov be moved longivtudinally and thus shift the reel operating mechanism in the manner before explained.' The reel which has just caused the automatic shifting of the operating mechanism, will at once begin to turn in the reverse direction as the key-levers are operated and the trip-plate or gate 45 moving away from the position indicated in Fig. 5 will become closed afterthe `roller end of the lateral ex# tension 49 of arm'48 has been moved out of the recess43 in the reel hub 42 by the en-l gagement of one end Wall of said recess with the roller 50. During the continued reelin of the ribbon on this reel, the gate will be maintained closed by thev winding of the ribbon over the extension- 46 thereof, as clearly indicated in Fig. 4.

Having fully described my invention what I claimv as new andl desire to secure by Letters-Patent, is y l. In a ribbon feedlng mechanism, the

.combination with ribbon reels, two shaft sections, a ratchetwheel on-eac. shaft section, and means for transmitting motlon from the shaft sections to the ribbon reels, of a rod or shaft, arms thereon, dogs or pawls carried by said arms for coperating with said 4ratchet wheels, a longitudinally mov-v able rod, two camscarried by said rod for moving one of said dogs or pawls into and the other out of operative relation to the adjacent ratchet wheel, and means for oscillating the shaft carrying said dogs or pawls.v

2. In atribbon feedlng mechanism, `the combination with ribbon reels, :two tions, a ratchet wheel on each shaft section, and means for transmitting motion from' the v shaft sections to the ribbon reels, of 'an os? shaft seccillatory shaft, dogs or pawls carried bysaid shaft for coperation lwith sa"id .ratchetv `wheels, loosely mounted1 dogs or. pawls for coperation with said ratchet wheels to pre- 1 vent retrograde movementitliereof, -two con. nected longitudinally movable rods, and two? cams carried by-each of said' rods for mov-` into coperative relation therewith for shiftingthe direction of travel of the inking ribbon between the reels.

3. In a ribbon feeding mechanism, the combination with two reels, operating means for each of said reels land shifting devices for said operating mechanism, of recessed hubs carried by said reels, a hinged tripplate or gate for normally closing the recess of each hub and having an extension entering the reel, a Weighted arm on each tripplate or gate for opening the latter when the ribbon has been exhausted from the reel, a spring actuated arm to enter the recess in the reel hub when said trip-plate or gate is open, and means for transmittm the movement of said army to the shifting evices of the reel operating mechanism.

4. In a ribbon feeding mechanism, the combination with two reels, shaft sections, and means for transmitting motion from the shaft sections to the reels, of a ratchet wheel carried by each shaft section, dogs or pawls for cooperation with the respective ratchet wheels, longitudinally movable rods, crossbars connecting said rods, cams carried by each of said rods for moving the pawls or dogs of one ratchet wheel into coperative relation' therewith and the pawls or dogs of the other ratchet wheel out of coperative relation with the same, hubs rotatable with said reels and each having a recess, weighted gates closing the recesses of the hubs and provided with extensions entering the reels, piv'oted arms provided with rollers to run on said hubs, springs connected with said arms and. causing the rollers to enter the recesses in the hubs when the gates are open, and connections between said pivoted arm and the-crossbars connecting the longitudinally movable rods, whereby, when the ribbon has become exhausted from one reel the weighted .gate thereon will be released and the pivoted arm permitted to be moved into the recess of the hub bythe action of the springattached to said pivoted arm and motion be transmitted to the longitudinally movable rods for shifting the dogs or pawls to change the direction of travel of the inking ribbon between the reels.

n testimony whereof, I have signed this vspecification in the presence of two subscribing witnesses. v

WARD S. IRELAND.

' Witnesses:

S. G. No'i'rINGHAM, GEO. F. DowNING.