US793780A - Paper-feeding mechanism for type-writers. - Google Patents

Description

PATENTED JULY 4, 1905. W. R. P0X 6; G. J. BARRETT. PAPER FEEDING MECHANISM FOR TYPE WRITERS.

APPLICATION FILED DEG. 6,1902.

3 SHEETS-SHBET 1.

VVitgesses:

No. 793,780- PATENTED JULY 4, 1905. W. R, POX (L2 G. J'. BARRETT.

R PAPER FEEDING MECHANISM FOR TYPE WRITERS.

APPLIOATION FILED DEG. 6,1902.

3 SHEETS-BHEET 2.

No. 793,780. PATENTED JULY 4-, 1905. W. R. FOX T1: G. J. BARRETT. PAPER FEEDING MECHANISM FOR TYPE WRITERS.

APPLICATION FILED 1330.6,1902.

3 SHEETS-BHEET 3.

itgesses:

IcII IIIIIEII STAUIFIMI IF'atented {I'uly II, 1905..

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IIZIIII'IIIBZIWII titties.

tA N I) RAPIDES, (It). LTD, (IF

FI IWEI I IFEEUINGI WIEUMI tNIIQIiII t 'tfill t "IYWE WWWI'IEIWEn QP'ECIFIGATION forming part of Letters Patent No. YQBJTPBO, dated July 4, 1905.

Application filed December 6, 1902. Serial Nov 134,110.

To (IN Iv/1 0111, i/z nu/ 1 concern:

lie it known that we, "WILLIAM It. Fox and titans J. Banurrur, citizens of the United (til/ates, residing in the city of Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and uselul Impr. i ven1ents in Paper-Feedinc lhlechanism tor 'Ilvpe-Itriters, ol which the following is a speci lication.

This invention relates to in]proven'ieuts in type-uniting machines, and pertains more nutitailarly to i|n novements in the paperl eedine' mechanism.

'lhe objects of this invention are, first, to

provide improved means of retaining the pa per in position; second, to provide an improved means of releasing; the lecd rolls; third, to provide an improved :u'ljustable platen.

Further objects will delinitely appear in the detailed description to follow.

Vi e accomplish the objects of our invention by the devices and means described in the following specification.

The invention is clearly defined, and pointed out in the claims.

A structure embodying the features of this invention is fully illustrated in the accompanying drawings, forming a part oi this specilication, in which;

Figure 1, is a plan view of the carriage and adjacel'it parts of a type-writing machine. Iiig. 2 is a front elevation view of the same when the platen is swung to the position For inspection. Fig. 3 is a rear elevation view oi the carriage detached from the machine. Fig. 4.- is a detail longitudinal sectional view through the platen, showing the structure whereby the platen is adjustable, the same being taken on line et t of Fig. 1. l in. 5 is a detail view, partially in section, of the feed-rolls and supporting-arms, one of the rolls being shown in longitudinal section. l ie. (3 is a detail transverse sectional view of the platen and adjacent parts, taken on a line corresponding to line (3 6 of Fig. 1. Fig. 7

is an enlarged detail sectional View taken on the irregular sectional line 7 7 of Fig. 3.

Fig. 8 is an enlarged detail view oi? the adjustii'ig means for one of the paper clips or guides. Fig. 9 is a detail sectional view on line 9 I) of Fig. 8. Fig. II) is an enlarged detail perspective view of the central guideroller and its su 'iport.

In the drawings the sectional views are taken looking in the direction of the little arrows at the ends of the section-lines, and similar letters ol re ierence reler to similar parts throughout the several views.

Referring to the lettered parts of the draw incs, A is the main frame 0]. the type-writer. A is the carriage-lraine, which is aiila ited to reciprocate thereon in any well-known way. The platen frame or cradle is made up of side pieces II Ir and a back rod B and a front rod ll, coupled thereto, and rests upon the main frame A of the carriage and is shi lted back and forth by suitable connections, which are de scribed in our concurrent patent application, liled December 11, 1901, Serial No. 85,433. The platen C is covered with the usual rubber casing and is made hollow, having journals extending out at each end through the end pieces B B of the platencradle. The platen is provided with the usual ratchet-head C at the right-hand end, which is actuated and controlled by the line-spacer lever (1", and a finger-lever O is provided at the left-hand end for tipping the platen up for inspection. The central shaft of the platen is divided into two parts L L, one at each end, on which the twirlers are fixed. The left-hand end M is made integral with the platen, and the part L is rigidly secured thereto by a suitable pin. The right-lnuid end (see l i wi) is made screwthreaded and is adapted to screw into a threaded hole in the right-hand end oi the part IQ, whereby the two parts can be rigidlvscrewed together. The right-hand end M of the platen is llQVfOl'ltiltMl, and a ratchet-wheel G, by which the line-spacing is accomplished, is provided with a journal which ex tends in \vardly through the head Id. The shaft Ii turns freely in a socket Formed in a sleeve carried by the ratchet-wheel (I, which sleeve is shouldered in its inner end. The sleeve at this end is journaled in the end piece B of the platenframe, which thus embraces and supports the shaft L.

hen it is desired to adjust the platen-roll, both of the twirlers are grasped and turned in opposite directions, loosening the screw, or the right-hand twirler is turned backward, loosening the screw, as the case may be. The platen is then set in the desired position and the right-hand twirler is turned to screw the shaft L tight in position and clamp the parts in their adjusted position. This adjustment is desirable, because it enables the accurate adjustment of the platen and for the reason that by this simple means wear and tear on the different ratchet mechanisms is entirely avoided. Further, this enables the operator to write on ruled paper of different widths of spacing, also providing for the changing of the position of the platen in relation to the printing-point, so that the whole surface of the platen comes in contact with the type.

The feed-rolls J J jj are best illustrated in Figs. 3, 5, and 6, where the supporting means for the same and the means for applying the spring-pressure fully appear. These rollers are composed of short pieces of metal tubing J ,7", covered with rubber rolls J f. In the end of each piece of tubing a bushing J is placed, through which a suitable journal-bearing is formed. Supporting-arms I I I I, having paper-guiding projections at their lower extremities, extend from the rear rod B of the platen-frame downwardly and forwardly into the proper position for receiving the shafts K, on which these rollers operate, there being a shaft for each roller J1, two or more rollers being provided and a pair of arms 1 I for each shaft. At each end of each roller J we provide small flanged rollers K K, against which the pressure-springs w w engage, the p ressu resprings being rigidly secured by suitable rivets or otherwise to the rear rod B of the platen-cradle, the same being suitably extended and curved to secure the desired elasticity.

Through the arms I 1 extends a rod N, square or irregular in cross-section, as clearly appears in Fig. 7, which is deflected forwardly and upwardly at the left-hand end of the platen, terminating in a linger lever N. Owing to the fact that this red is irregular in cross-section, when pressure is applied to the finger-lever portion N the arms I will be deflected rearwardly and all of the rollers will be released on account of the action of said lever tending to turn the said rod N. This would have the same action if the feed-rollers were all supported on a single shaft; but by supporting them on separate shafts in connection with this device much greater freedom of movement is secured and a much better contact with the paper is insured.

A paper-apron (a is secured to the rear stayrod B and extends downwardly and forwardly toward the point of tangeney of the feed-rolls and platen. To the upper edge of this aprou is suitably hinged the paper-table a. Ears a e are struck out of the apron and bent rearwardly and upwardly to serve as stops for the paper-table.

On the front stay-rod B are supported sliding spring-clip fingers D, the same being carried on suitable sleeves D, which are adjustable back and forth on the said red, the front of the said rod being notched at c, and a pin 0, held normally in contact by a coiled spring 0", carried in suitable sockets I) in the finger-pieces, retaining the said spring-lingers adjustably in position at any point desired. The spring-lingers I)" are notched at (Z (Z to indicate the exact location of the printingline, as clearly appears in Fig. 2. This enables the proper adjustment of the paper within the roll, so that it can be readily set to begin or insert the printing at any point desired.

The center paper-guide is best illustrated in Figs. 1, T, and 10. It consists of a frame F, attached to the front stay-rod B, extending upwardly therefrom and then downwardly in convenient form, as clearly appears in Fig. 7, and serves to catch the paper as it comes from under the platen-scale. The center portion of this paper-guide frame is cut out, as shown in Fig. 10, and at the bottom we attach the spring F, bearing a roller F at its upper end, adapted to rest with slight springpressnre against the platen C, the position of the contact being clearly illustrated in Fig. 7, and a view of the structure from the front clearly appears in Fig. 10. The roller F" is for the purpose of holding the paper against the platen C, thereby causing sullicient friction to feed the paper along on the actuation of the platen after the paper has passed from under the feed-rolls J. The spring is sulliciently yielding, so that it is not necessary to adjust it away from the platen when carbon work is being done.

We have shown our improved paperfeeding device for type-writers in the form which seems to us to be the most practical, though we desire to remark that the structure is capable of considerable variation in detail without departing from our invention, many of which changes we have indicated by the language of our description. Other changes in form will no doubt readily suggest themselves to those skilled in the art to which our invention appertains.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a paper-feeding device for a typewriter, the combination of a platen-cylinder mounted in a suitable frame or cradle; a plurality of feeding-rollers J of yielding material, adapted to revolve upon suitable bearingshafts K; supports I for said bearings or pivots Ii, depending from said platen-cylinder "rear/en frame or cradle, said supports having a paperguiding projection arranged toward the platen at their lower extremities; flanged rollers it. mounted upon said bearing-pivots; a plurality of springs n attached to said platen-cylinder cradle or frame, and adapted to bear upon said ilanged rollers; the release-rod N of irregular cross-section,extending through openings in said feed-roller supports 1 at a point between said feed-rollers and the platen-cylinder frame or cradle and iitting the same, one end of said release-rod being bent forwardly overthe platen-shaft and provided with a suitable finger-piece, substantially as described.

2. in a paper-feeding device for typewriters, the cou'ibination of a platen-eylinder mounted in a suitable frame or cradle; a pinrality of feeding-rollers i l of yielding mate rial, adapted to revolve upon suitable bearil'igshafts It; supports 1 for said bearings or piv ots b1, dc mnding from said platen-eylimler frame or cradle; llanged rollers Ii mounted upon said bearingpivots; a plurality of springs 91 attached to said platen-cylinder cradle or frame, and adapted to bear upon said flanged rollers; the release-rod N, irregular in cross-section, extending through openings in said feed-roller supports 1 litting the same, one end of said release-rod being bent forwardly over the platen-shaft and provided with a suitable iinger-pieee, substai'itially as described.

3. in a paperfeeding device for typewriters, the combination of a platen-cylinder mounted in a suitable frame or cradle; a plurality of feedinga'ollers J of yielding material, adapted to revolve upon suitable bearingshafts iii; supports l for said bearings or pivots it, depending from said platen-cylinder frame or cradle; iilanged rollers K mounted upon said bearing pivots; a plurality of springs a attached to said platen-cylinder cradie or frame, and adapted to bear upon said Hanged rollers; the release-rod N, irregular in Cl'USS-SQClJlOH, extending through openings in said fecdroller supports l, iitting the same, one end of said release-rod being bent forwardly over the platen-shaft, substantially' as described.

i. in a paper feeding device for typewriters, the combination of a platen-cylimler n'iounted in a suitable frame or cradle; a plurality of feeding-rollers of yielding material adapted to revolve upon suitable shafts or pivots; supports for said bearing shafts or pit ots, depending from said platen cylindtn' frame or cradle, said supports having a guiding projection toward theplaten at their lower extremities; flanged rollers mounted upon said bearing-pivets; and a plurality of springs attachedto said platen-cylimler frame or cradle and adapted to bear upon said ilanged rollers; a release-rod of irregular cross-section, extei'uling through openings in said feed-roller supports, fitting the same, one end of said release-rod beil'ig bent forward over the platenshaft, substai'itially as described. I

In a paper feeding device for typewriters, the coi'nbination ofa plateircylinder mounted in a suitable frame or cradle; a plurality of feeding-rollers of yielding material adapted to revolve upon suitable shafts or pivots; su u'iorts for said bearing shafts or pivotsaltmendiug fromsaid platencvlinder frame or cradle; ilanged rollers mounted upon said bearing shafts or pivots; and a pluralitv of springs attached to said platen-cylinder frame or cradle and adapted to bear upon said flanged rollers; a release rod of irregular cross'section, extending through openings in said i'eed roller supports, iittingthe same, one end of said release-rod being bent forward over the platen -shaft, substantially as described.

G. In a paper-feeding device for typewriters, the combination of a ulaten-cylimler mounted in a suitable frame or cradle; a pinrality of feeding-rollers of yielding material adapted to revolve upon suitable shafts or pivots; supports for said bearing shafts or pivots, depending from said platen cylinder :frameoreradle; flanged rollers mounted upon said bearing-pivots; and a plurality of spriiigs attached to said l)litliiil QYlllKlQi' frame or cradle and adapted to bear upon said ilanged rollers; a release-rod of irregular cross-section, extending through openings in said feedroller supports, one end of said release-rod being bent forward over the platen-shaft substantially as described.

7. in a paperfeedii'ig device for typewriters, the combination of a laten evlinder mounted in a suitable frame or cradl B; a plu rality of feedbig-rollers of yielding material ada ued to revolve upon suitable shafts or pivots; supports for said ljiearing shafts or pivots, depending from said platen-cylinder 'fIill'ilO or cradle; rollers mounted upon said bearing-pivots; and a plurality of springs attached to said )late1'i-eylinder frame or cradle and adapted to bear upon said rollers; a release-rod of irregular cross-secti'on, extending through openings in said feed-roller supports, one end of said release-rod being bent :forward over the platen-shaft, substantially as described.

8. in a paperfeeding device for typcwriters, the combination of a 1daten-cylinder mounted in a suitable frame or cradle; a pin- ,rality of feeding-rollers of yielding material adapted to revolve upon suitable shafts or pivots; supports for said bearing shafts or pivots, depending from said platen cylinder frame or cradle; rollers mounted upon said l.)earing-pivots; and a pluralitv of springs attached to said platen-eylii'uler frame or cradle and ada 'ited to bear upon said rollers; a release-rod of irregular eross-section extci'iding through openings in said feed-roller supports, one end of said release-rod being bent forward, substantially as described.

9. In a paper feeding device for typewriters, the combination of a platen-cylinder mounted in a suitable frame or cradle; a plurality of feeding-rollers of yielding material, adapted to revolve upon suitable shafts or pivots; supports for said bearing shafts or pivots, depending from said platen cylinder frame or cradle; a plurality ofsprings attached to said platen-cylinder frame or cradle; a release-rod of irregular cross-section extending through openings in said feed-roller supports, one end of said release-rod being bent forward, substantially as specified.

10. in a paperfeeding device for a typewriting machine, the combination of a main platen-roll; feed-rolls on a suitable shaft carried by pivoted arms; a release-rod of irregular cross-section extending through said arms, and deflected upwardly and forwardly in a lever for the release of said feed-rolls, coacting for the purpose specilied.

11. In a type-writing machine, the combination of a paper table or leaf hinged to a paper-apron, normally extending backwardly, and a stop for limiting the swing of said paper table or leaf, substantially as described.

12. In a typewriting machine, a paperapron attached to the rear of the platen frame or cradle, having its lower extremity bent forward and downward toward the point of contaetof the feedrolls and platen, and a papertable secured to the top of said apron, substantiall y as described.

13. In a type-writing machine, a paperapron attached to the rear of the platen cradle or frame, and having its lower extremity bent coarse forward toward the point of contact of the feed-rolls and platen; a paper-table hinged to the upper edge thereof, with suitable stops for holding it in position.

1a. In a type-writing machine, the combination of a platen; a frame or cradle therefor; a central paper-guide attached to said frame or cradle, the main portion Fof which is formed of sheet metal and extended upwardly from said cradle and folded downwardly in proximity to the platen-cylinder extended transversely to the said platen and with its central portion cut out; a forked spring F secured to the lower inner portion of said guide and extended upwardly within said cut-out portion; and a roller F secured between the divided parts of said spring, adapted to bear upon the said platen centrally of said frame F, coacting as specilied.

15. In a type-writing machine, the combination of a platen; a frame or cradle therefor; a central paper guide attached to said frame or cradle, the main portion F of which is formed of sheet metal extended transversely to the said platen and with its central portion cut out; a forked spring F secured to the innor portion of said guide and extended within the cut-out portion; and a roller li secured between thcdivided parts of said spring adapted to bear upon the said platen centrally of said frame F, coacting as specilied.

In witness whereof we have hereunto set our hands and seals in the presence of two witnesses.

\VILLI AM R. FOX. s] GLENN J. BARRETT. It. s.

\Vitnesses:

Enwann (i. MATTER, Geo. K. MoMULLnx.

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