US1131828A - Type-writing machine. - Google Patents

Description

S. H. FARNHAM, A. W. SMITH & J. PHELPS. TYPE WRITING MACHINE.

APPLICATION FILED iiIAY 14. 1913.

i li gl g g Patented Mar. 15, 1915.

4 SHEETS-SHEET 1.

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TMQEATTBRNEV S. H. FARNHAM, A. W. SMITH & J. PHELPS.

TYPE WRITING MACHINE.

APPLICATION FILED MAY 14, 1913.

Patented Mar. 16, 1915.

4 SHEETSSHBET 2.

NV ENTERS:

TNESSES:

THEIRATTDRNEY S. H. FARNHAM, A. W. SMITH & J. PHELPS.

TYPE WRITING MACHINE.

APPLICATION FILED MAY 14, 1913.

Patented Mar. 16, 1915.

4 SHEETS-SHEET 4.

nmN

v- F- N R U T T A R U H our invention,

H OF NEW YORK N. Y.,

GTON TYPEWRITER A CORPORATION or ew YORK.

TYPE-WRITING MACHINE.

Original application filed January 18, 1913, Serial No. 742,786. Divided Specification of Letters Patent.

Patented Mar. 16, 1915.

and this application filed May 14,

' 1913. Serial No. 767,529.

To all whom it may concern:

Be it known that we, STEPHEN H. F ARN- HAM, ARTHUR W. SMITH, and JOSEPH PHELPS, citizens of the United States, and residents, respectively, of the borough of Brooklyn, county of Kings, city andState of New York; borough of Manhattan, city, county, and State of New York, and Belleville, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Type-Writing Ma chines, of which the following is a specification.

Our present invention relates to paper feeding devices for typewriting machine and its object is to provide new and improved devices of the character specified.

To the above and other ends our invention consists in the features of construction, combinations of devices and arrangements of parts hereinafter described and particularly pointed out in the claims.

This application is a division of our prior application, Serial No. 742,786, filed January 18, 1913, and while the principles of our present invention are applicable generally to typewriting machines the preferred embodiment herein illustrated is especially adapted for feeding paper in connection with a machine of the character disclosed in said prior application.

In the accompanying drawings, Figures 1 and '2 are respectively the front and rear portions of a fore and aft vertical sectional view of a typewriting machine embodying only so much of said machine being shown as is necessary to a fall understanding of said invention. Fig. 3 is a fragmentary plan view, partly in section, showing part of the paper feeding mechanism for the main carriage. Fig. 3 is a fragmentary detail View of the same. Fig. 4 is a fragmentary vertical transverse sec tional view taken through the main and sub-carriages and showing certain of the paper feeding devices mounted on the subcarriage. Figs. 5 and 6 are respectively a fragmentary plan view and fragmentary rear elevation of the sub-carriage and some of its appurtenances, and illustrating especially the paper'feeding devices on the subcarriage.

The main frame of the machine as appears from Figs. 1 and 2 comprises a base 1, whence rise sets of posts 2, 3 and 4, the posts 3 and 4 at each side being connected by a web 5. A top plate comprising a rear .part 11 and two front parts 12 is mounted A type bar segment 13 proon the posts. Vides a support for hangers 14 on which are pivoted type bars 15 each connected to a key lever 18 by connections comprising a link 19, a lever 20 and a second link 21. The type bars may print on superposed work sheets which are supported on main and subcarriages, the sub marriage being mounted on the main carriage as set forth in detail in our prior application aforesaid. The main carriage comprises end plates or bars 26 and 27, a front bar 28 and two rear bars 29 and 30. The bars 28 and 29 are grooved to coiiperate through anti-friction balls 31 with stationary grooved guide rails 32 and 33 which extend beyond the ends of the top plate, as the main carriage is of a length to support a long platen 36 which is mounted on an axle 37 bearing in the end plates 26 and 27. A spring drum 39 pivoted to a stationary bracket 40 is connected to the main carriage by a strap 41. said strap being hooked over a finger 42 depending from the right-hand one of a pair of brackets 43 secured to the bar 29. Leftward movements of the carriage are controlled by escapement devices comprising a feed rack 45 supported on arms 46 pivoted at 47 to the inward ones of pairs of ears 48 rising from and integral with the brackets 43. Said feed rack normally meshes with a feed pinion 49 supported on a shaft (not shown) bearing in a bracket 51. Said pinion is operatively connected with escapement wheels 52 and 53 with which is adapted to co-act a feed dog 54 mounted on a rocker 55 pivoted at 56 to ears 40 on the bracket 40. Said rocker is operatively connected by a link 57 with a crank arm 58 fixed to a rock shaft 59 bearing in the base 1 and provided near its ends with crank arms 60 which support links 61 carrying the universal bar 62 underlying the key levers 18 and operative thereby.

In order to control, guide and feed or advance the sheet or sheets on the main carriage and around the platen 36, devices are provided which, as illustrated in Figs. 2, 3 and 3, comprise main feed roller Sections 92 cooperative directly with the lower rear side of the platen 36. In the present case two separate roller sections 9:2 are provided and together constitute the main feed roller. each section being mounted ona shaft 93 which bears in arms 94.- supported on a rock shaft 95 that bears near its ends in the ears 48 of the brackets 4:3. The arms 91 are not secured directly to the rock shaft 95 but each is associated with an arm 96 which is fixed to said rock shaft, the arms 96 being provided with set screws-97 having pointed ends which engage in a V-groove 98 extending longitudinally of said rock shaft. Each arm 96 is contiguous to its associate arm 94 and is held in fixed relationship therewith by a headed screw 99 and a cooperating locking nut 100. Each screw 99 is provided with an eccentric shouldered portion 99 which passes loosely through a hole in the arm 94, the screw shank passing freely through an opening in the arm 96. The head of said screw is maintained in clamping engagement with the arm 94: by the locking nut 100.

It will be'understood that the relationship between each arm 96 and the rock shaft 95 is predetermined by reason of the associate set screw and groove connections 97, 98 between the parts, while the connection of the arms 94: and 96 through the eccentric screws 99 permits of a slight variation in the location of said arms suiiicient to afford accurate adjustment of the feed roller sections 92 in respect of the platen. Said feed roller sections are pressed constantly toward the platen 36 by springs 101, said springs being coiled around the rock shaft 95 and one being arranged between each pair of the ears 48. One end of each spring is anchored to one of the associate ears 48 while the other end is secured in an adjustable sleeve 102 which is provided with ratchet teeth that cooperate with similar ratchet teeth on a collar 103 fixed to the shaft 95. The construction is such that by turning the sleeve 102 the tension of the associate spring 101 may be varied as desired and will, after adjustment, be transmitted through the associate sleeve 102 and collar 103 to the rock shaft 95 and thence to the main feed roller. In order to release said feed roller the left-hand collar 103 is provided with a forwardly extending arm 104 which terminates in a finger piece or release key 105 depressible to overcome the springs 101 and throw the main feed roller sections 92 off or away from the platen.

Arranged in an inclined position at the rear of the platen 36 is a paper apron or deflector 106 which is screwed or otherwise secured to blocks 107 pivoted loosely on the rock shaft 95. One or more of said blocks may be confined between collars 108 fixed to said shaft, thus locating said deflector. The

deflector 106 is provided with slots 109 through which the roller sections 92 protrude to cooperate with the platen 36 and said deflector is constantly pressed toward the platen by leaf springs 110 having ears 111 secured by screws 112 to the outermost arms 96. Arranged at the left end of the deflector and suitably secured thereto as by soldering is a marginal portion or guide finger 113 which curves forward and upward around the platen and terminates above the same. This finger may be formed integral with the deflector 106 and may be duplicated at the right side thereof if desired. Arranged above the movable deflector 106 so as to form therewith a practically continuous means or guiding surface and support for the paper on the main platen is a paper table or guide plate 114 which is supported on brackets 115 on the main carriage. Said guide plate 114 curves upward and rearward, being extended far enough back to prevent the paper which may overhang at the rear from being obstructed by the tabulating mechanism (not shown) during endwise movements of the main carriage. A pressure device comprising rolls 130 cotiperates with the upper face of the platen 36.

Line spacing devices of the character disclosed in our prior application aforesaid but not shown herein are operative to turn the platen 36 and cause the feed rollers above described to cooperate therewith to feed or advance the paper around and over the-said platen.

It will be observed that the feed rollers 92 are mounted on arms or hangers 94 which while themselves loose on the rock shaft 95 are adjust-ably secured to other arms 96, said arms 96 being so connected to the rock shaft 95 that their relationship circumferentially thereof isfixed while at the same time they may be variably adjusted lengthwise of said rock shaft. The main or body portion of the deflector 106, it will be seen, terminates below the printing line at the front face of the platen while the marginal portion 113 of said deflector extends upward across the printing line and is adapted to guide the paper back over the platen.

The sub-carriage which is supported for relative movement on the main carriage comprises, as shown in Figs. 2 and 4, a base plate 183 having upturned end portions 183*, and underlies the cross bar 30 on the main carriage, said cross bar being formed with a groove 184 providing a trackway with which the base plate 183 is connected by roller bearing devices 185. A cord 193 connects the sub-carriage to a spring drum 194 which constantly impels it toward the right. To hold the sub-carriage against the pull of its spring drum 194 and set in proper relationship with the main carriage, detent devices area-gees are provided comprising a rack bar 198 on the main carriage and a cooperative releasable pawl or detent 200 pivoted at 201 on the sub-carriage. The sub-carriage is adapted to carry a work sheet, which while movable independently of the main carriage and its platen 36 is nevertheless guided upward at the front of said platen and over the sheets fed around the same, and is adapted to receive type impressions against the front printing face of said platen. Means for feeding and controlling the sub-carriage work sheet are illustrated in Figs. 2 and 4 to 6. The base plate 183 is provided at its front with downwardly and rearwardly inclined lugs or fingers 206 to which is screwed at 207 or otherwiserigidly secured, a combined paper support and receptacle .or basket 208. Said support or guide is preferably of light sheet metal and beginning at a point slightly above and forward of the plate 183 curves downward and rearward, its lower portion being bent or curved forward and upward providing a holder or pa er basket proper.

uitably secured to the front side of the basket at about its middle is a flexible guide finger 209 which extends over the top ofthe lower or basket portion and has a frictional contact with the inner face of the basket, the purpose of said finger being to direct the paper downward into the basket and to hold it lightly against the inner face thereof. The basket is provided at its left-hand side with a side guide or gage 210 for the paper fed through the sub-carriage. An end gage or stop device comprising a rod or bar 215 is also suitably supported on the basket 203 and extends from side to side thereof. The paper, it will be understood, is introduced downward into the basket and between it and the spring finger 209 and is adjusted against the side gage 210 and the end gage 215.

Above the basket 2'08 guiding and controlling devices for the paper on the sub-carriage are provided as shown in Figs. 2 and 4 to 6. Said devices comprise a deflector or guide plate 224 which is inclined forward at about the same angle as the upper part of the basket 203 and terminates slightly below and forward of the upper edge portion of the same. Saidguide plate is secured at its ends to fingers 225 which are fixed by screws 226 to arms 227, said arms being secured by set screws 228 to a sleeve or hollow rock shaft 229. Fixed in the ends of said shaft 229 are bearing plugs or bushings 230 which projedtbeyond the ends of the shaft and bear in openings in angular plates 231 which are secured to the under side of the sub-carriage base plate 183 and extend downward vertically in the planes of the associate end portions 183. The arms 227 also provide bearings for a additional papershaft 232 which carries two feed roller sections 233 that are adapted to protrude rearward through slots 234 in the deflector 224. A space .or gap is left between the sections 233, and in this gap is received a shaft-supporting finger or member 235 which is bent around the shaft 229. and clamped adjustably thereagainst by a clamping screw 236. The free end of the finger engages with the shaft 232 and supports the same between its ends. The sections 233 constitute a secondary feed roller which cooperates with a main feed roller located behind the deflector 224. Said mainfeed roller comprises a metal tube or sleeve 237 provided with a sheath 238 of rubber or the like. Fixed in each end of the tube 237 by a' screw 239 is a flanged bushing 24.0, the flanged end whereof is outside the tube and abuts against the associate end portion or bar 183 of the sub-carriage. EX- tending through the bushings 240 and secured in place by the screws 239 are inner bushings 241 and 242. The left-hand bushing 241 has a plain flange outside the associate end bar 183 but the right-hand bushing 242 is formed outside its end bar with a ratchet wheel 243 with which cooperates a roller detent 244 mounted at the free end of a spring arm 245 secured by a screw 24:6

to the under side of the right-hand one of a pair of lugs 183 integral with and projecting rearward from the base plate 183. The detent devices 243 and 24st coiiperate to maintain the main feed roller 237, 238 in adjusted positions and thus control the feeding movements of the paper 477 which passes between the main feed roller and the secondary feed roller 233. These feed rollers are maintained in spring pressed re lationship by draw springs 247, one at each end of the sub-carriage, the rear ends of said springs being anchored to lugs 183 on the base plate 183 and their forward ends being hooked over pins 248 projecting laterally from the arms 227. Said springs tend constantly to turn the rocking frame comprising the shaft 229, arms 227 and fingers 225, toward the rear and maintain the feed roller 233 pressed against the main feed roller; while the deflector 224 which is also mounted on said rocking frame is held in the normal position shown in Figs. 2 and 4 with its upper edge contiguous to the platen 36 below the printing line thereon. The rocking frame is adapted to be swung forward to separate the feed roller 233 from the feed roller 237, 238 andto provide a gap, throat or space between the upper end of the plate 224 and the lower front face of the platen 36 as indicated by dotted lines in Fig. 4. This throwing 0d of the deflector and the feed roller is accomplished automatically during traveling movements of the main carriage and sub-carriage by devices comprising an arm 2459 which is fixed to the shaft or sleeve 229 near its righthand end by a set screw 250. The arm 249 extends downward and is off-set somewhat to the rear and carries at its lower end a roller 251 which bears on a headed shouldered screw 252 which is threaded into the end of said arm.

The roller 251 is adapted to coiiperate with a cam device 253 fixed to a slide 254 adj ustable on a toothed bar 179 that is fixed to ears 4' on the frame posts 4. The cam device 253 is in the form of a lip or ledge which projects horizontally rearward from the face of the slide 254, the ledge having its left-hand and right-hand sides inclining forward oppositely so as to provide oblique cam edges or surfaces each of which is adapted during traveling movements of the carriage to engage with the roller 251 when it is in its forward or Fig. 2 position and thereafter to force it rearward as the movement of the carriage is continued until said roller engages with the extreme rear face of the cam device 253 between the two cam surfaces, this position being indicated by dotted lines in Fig. '4. When during leftward movement of the main and sub-carriages the roller 251 is brought into engagement with the right-hand cam surface of the double cam 253, said roller will be forced rearward on to the straight portion of said cam and will rock the shaft 229, swinging the feed roller 233 and the deflector 224 for ward as described to the dotted line position of Fig. 4, thus providing a gap or throat into which the sub-carriage work sheet may readily be introduced downward into the basket 208 or may be withdrawn for the substitution of a fresh work sheet. The front of the deflector plate 224 beyond its upper edge is preferably provided with a scale (as indicated by dotted lines in Fig. 6) to cocperate with the paper on the subcarriage below the printing line. When the carriages are returned toward the right the roller 251 passes out of control of its associate cam, the springs 247 will restore the rocking frame to normal or operative position, closing the throat and clamping the paper. Even should the carriages be moved far enough leftward to carry the roller 251 to the left of the cam member their return movement will not be obstructed for the reason that the roller will ride up over the left-hand end of the double cam 253 and thus permit an unobstructed rightward return movement of the carriages. Additional means may be provided operated by a key on the main carriage as disclosed in our prior application aforesaid for controlling the rocking frame to open and close the throat, that is, to swing the deflector 224 away from and toward the platen and also to cause the sub-carriage feed rollers to separate and rengage.

Means are provided operative from the main carriage for turning the feed roller 237, 238 to advance or retract at will the work sheet or sheets carried by the subcarriage. Said means comprise a squared shaft 265 which passes through said feed roller and bears in the end bars 26 and 27 of the main carriage. The shaft is adapted when turned to transmit motion to the feed roller through the bushing 242 which is formed with a squared hole of slightly greater dimensions than the shaft 265 so that while the bushing may slide freely along the shaft during endwise movements of the sub-carriage on the main carriage yet in any of its positions rotary motion communicated to the shaft 265 will be transmitted to the feed roller 237, 238, causing it to turn and advance or retract the paper in coiiperation with the roller 233. The right-hand end portion of the shaft 265 projects some distance beyond the end bar 27 and is provided with a knurled finger wheel 268 by which the feed roller 237, 238 may be turned back and forth for feeding and adjusting purposes. Other means for turning said feed roller may also be provided as set forthin our prior application aforesaid.

Owing to ofiicial requirements as to division the claims in this case relate to the specific construction of the feed mechanisms of the main and sub-carriages. This application discloses subject-matter not herein claimed but which is claimedin our parent application, Serial No. 742,786 and in other divisional applications thereof.

What we claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a platen carrier, a platen. a coopcrating pressure roller, a rock shaft on said platen carrier, arms'fixed to said rock shaft,

hangers for said" pressure roller loosely mounted on said rock shaft, and screw and nut connections between said hangers'and said arms, said arms being provided with set screws which engage with a groove or depression in said rock shaft.

2. In a typewriting machine. the combination of a platen carrier, a platen, a coiiperating pressure roller. a rock shaft on said platen carrier, arms fixed to said rock shaft, hangers for .said pressure roller loosely mounted on said rock shaft, means for adjustably securing said hangers to said arms, a paper apron and deflector pivoted loosely on said rock shaft, and leaf springs secured to certain of said arms for maintaining said paper deflector in coiiperation with the platen.

3. In a typewriting machine, the combination of a platen carrier, a platen. a coiiperating pressure roller, a rock shaft on said platen carrier, arms fixed to said rock shaft, hangers for said pressure roller loosely mar-see mounted on said rock shaft, meansfor adjustably securing said hangers to said arms, springs adjustably connected to said rock shaft, and a release key also connected to said rock shaft.

4. In a front-strike typewriting machine, the combination of a traveling platen, a paper receiving basket arranged at the front side of and below said platen, paper feeding devices for feeding the paper from said basket over the rinting face of said platen, a paper guide aiiove said basket, and means for moving said guide away from said platen to facilitate the introduction of the paper at the front side thereof. 7 a

5. In a front-strike typewriting machine, the combination of a traveling platen, a paper receiving basket arranged at the front side of and below said platen, a paper guide plate above said basket, paper feeding devices for feeding the paper from said basket over said plate and across the front face of said platen, and means for moving said guide plate away from said platen to facilitate the introduction of the paper at the front side thereof, said paper feeding devices being also separable for this purpose.

6. In a front-strike typewriting machine, a

the combination of a platen, a paper receptacle arranged below the platen, two cooperating paper feeding devices arranged between the platen and the upper end of said paper receptacle, a movable support for one of said devices, a paper guide mounted on said support and arranged between said devices and forming ineffect an upward continuation of said receptacle, and means for moving said support so as to swing said guide away from the platen and also separate said devices, paper being introduced at the front side of the platen downward over said guide and between saiddevices into said receptacle.

7. In a front-strike typewriting machine, the combination of a platen, a paper basket arranged below said platen, a paper feed roller between said basket and said platen, a pivoted support, a cooperating feed roller on said support, and a guide plate also mounted on said support and slotted-to permit said feed rollers to cooperatively engage, said guide plate inclining upward and forward toward the front side of the platen, and said support being movable to swing the upper edge of said guide plate away from the platen and to separate said feed rollers, thereby facilitating the introduction of paper at the front side of the platen downward over said guide plate between said feed rollers and into said receptacle.

8. In a typewriting machine, the co1nbination of a platen, a main feed roller below the same, a support pivoted below said platen, a secondary feed roller mounted on said support, a paper guide plate mounted on said support, a paper receptacle below said guide plate mounted independently of said support, said guide plate extending from a point about opposite the upper portion of said receptacle diagonally upward toward the platen and terminating at the front side of the platen below the printing line there on, spring means tending constantly to swing said guide plate and said secondary feed roller toward the platen, and means for overcoming said spring means and swingmg said guide and said secondary feed roller away from the platen to provide an opening or throat between the upper edge of said guide and the platen to facilitate the introduction of the paper downward over said guide between said feed rollers and into said receptacle, the lower portion of which is shaped so as completely to house the lower portion of the paper.

9. In a typewriting machine, the combination of a platen, a main feed roller below the same, a support pivoted below said platen, a secondary feed roller mounted on said support, a paper guide mounted on said support, a paper receptacle below said guide mounted independently of said support, spring means tending constantly to swing said guide and said secondary feed roller toward the platen, automatic means for overcoming said spring means and swing-- ing said guide and said secondary feed roller away from the platen to facilitate the introduction of the paper, and hand actuated releasing means for at will overcoming said spring means.

10. In a front-strike typewriting machine. the combination of a traveling platen, a paper receiving basket arranged. at the front side of and below said platen, a paper end gage mounted on said basket, a paper side gage mounted on said basket, and paper feeding devices for feeding the paper from said basket over the front side of said platen.

11. In a typewriting machine, the combination of a platen, two cooperating paper feeding rollers, a movable'support for one of said rollers, a paper guide plate on said support, a paper receptacle below said guide, means for moving said support to facilitatethe backward introduction of the paper into said receptacle, and an end gage on said paper receptacle to cooperate with said paper when so introduced.

12. In a typewriting machine, the combination of a platen, two cooperating paper feeding rollers, a movable support for one of said rollers, a paper guide plate on said support, a paper receptacle below said guide, means for moving said support to facilitate the backward introduction of the paper into said receptacle, an end gage on said paper receptacle to cotiperate with said paper when so introduced, and a side gage for the paper also mounted on said receptacle.

13. In a typewriting machine, the combinationof a carriage, a paper feed roller thereon, a support pivoted to swing on said carriage, a cooperating feed roller on said support, a guide plate on said support slotted to permit said feed rollers to cooperate, a paper basket arranged below said feed rollers, a platen above said feed rollers, means for swinging said support to move said guide late and separate said feed rollers, there y facilitating the backward introduction of the paper, and an end stop bar supported on and extending from side to side of said paper basket, said bar cooperating with the paper when it is thus introduced backward.

14. In a typewriting machine, the combi- STEPHEN H. FARNHAM. ARTHUR W. SMITH. JOSEPH PHELPS.

Witnesses as to Farnham and Smith:

M. F. HANNWEBER, CHARLES E. SMITH.

' Witnesses as to Phelps:

R. A. SHEPARD, (J. E. PHILLIPS.

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