US1115669A - Type-writing machine. - Google Patents

Description

G. C. HARTING.

TYPE WRITING MACHINE. APPLICATION FILED JAN. 21, 1914.

Ea'tented Nov. 3, 1914.

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mi2/My l III .H. .il-.lll L.. "Il En n u K .u Il' "u u... l. d i d 'l lllllll'll' s "/YS- A eLAYToN o. KARTING, or Woonsrocn. ILL-mors, Assenos TO THE OLIVER TYPE- WRITER COMPANY, GFCHIC'AGO, ILLINOIS, A CORPORATION OF ILLINOIS.

TYPE-W-RITING MACHINE.

Specification of Letters Patent.

Patented Nov. 3,1914.

Application filed January 21, 1914. Serial No. 813,374.

To all w71 ont it may concern:

Be it known that I, CIAY'roN C. Hamme, a citizen of the United States, and a resident of Woodstock, in the county of McHenry and State of Illinois, have invented certain new and useful -Improvements in Type-1V riting llflachincs; and 1 do hereby declare that the following ijsra full, clear, and exact dcscription thereof, reference being had to the accompanying drawings, and to the letters ot reference marked thereon, which form a part of this specification.

This invention relates to an improved device for releasing the carriage of a typewrit-k ing machine from its letter spacing` mecha\.

nism, whereby the carriage may be moved freely in either direction from end to end of its travel, for the purpose ot' `facilitating the insertion ot characters in an alreadyY printed line, or tor other purposes.

The device. constituting my invention 1nvolves substantial innirovements in carriage release mechanism of the torm shown in U. S. Letters Patent to Ingersoll, No. 8217,543.) December -l-, 1906.

lMy in'iprovements are shown asiipplied to an Oliver typcwriting machine. wherein endwise movement of the carriage, 'tor letter spacing, under the action ot' its` actuating spring'. is etl'ected through the medium of an escapement n'iecha'nisln elnbraci g a rotative pinion which is yieldingly heh in intermeshingV relation, with a rack-bar on the carriage traine and means for disengaging said carriage from the escapement mechanisn'. embracing a release bar adapted to force said pinion out ot mesh with the rack har.

A mechanism constructed according to the Jfeatures olI nl v invention may. honorer. he applied to other typewritingv machines, hav.- ing similar means for effecting letter spacing.

itlv ..rva-,ntiou consists in the mattersA herein described, more particularly pointed out iu the appended claims and t'ully illustrated in the accompanying drawings. in which- Figure 1 is a view in `liront elevation ot thc carriage of an Oliver typewriting machine; Fig. 2 is a view in horizontal section, raken on line of Fig. 3, with portions broken awa)` to show the carriage release device: Fig. 8 is a view in transverse, vertical seetion of the carriage and portionsof the mamechanism olf the machine, as illustrated,

comprises features as follows: A rack-har 16 forms the lower, liront, longitudinal mem her of the carriage; said rack-bar being pro- `\vided at its forward edge with rack-teeth, which are located below, and project a short distance torwardlv trom. the platen 13k. A vertical shalt 1T. jonrnaled in suitable bearings on the lift-trame V11. is provided at its upper end with a pinion 1S, adap'tcd to engage the tet-th on said raclcbar and to he thrown out ot' engagement therewith by means et the release device, as hereinafter described. As herein shown, the shaft 1T is relatively mounted at its upper end in a block lt). adapted to slide toward and Yt'ron. the melt-har within a guide slot in a lorwardly projecting bracket '2O on the shittl'raunn A spring 21, mounted within said slot, acts to lvieldinglv torce the block toward the rack-bar. The lower end of the shaft is mounted upon the shift-traine, in such a manner as to permit the upper end of said shaft to oscillate toward and from the rackbar. An escapement wheel (not shown), mounted upon the lower portion ot' the shaft and operativelyl connected to the letter spacingl mechanism oi the machine, forms part o1 the escape-mcchanism which controls the rotative n'iovemei'it'- oli the shaft.

Referring now to the means tor actuating the .shaft 1T, for throwing the pinion 1S forwardly out o'l" mesh with the rack-hariw, a release "par E21 is longitudinally arranged upon an .ilnvardly facing, horixonal hearing sui-'face of the said rack-bar 1G. release har is similar in construction to that shown in the prior U, S. Letters Patentto (Hiver, Jo. 590,963, a nd lngersoll. No. 8237.569, and is adapted to move. or slide on the rack-bar in a direction. toward and from the shaft. As illustrated in the drawings, said Said.

release bar consists of a fiat metal plate slightly tapering toward its ends and provided at its forward margin with an upright flange 25, adapted to engage a roller 26 mounted at the upper` end of the shaft 17 immediately above the pinion 18. Said flange is preferably formed by bending upwardly the forward marginal portion of the bar. Adjacent to the ends of the release bar are pre-vided two parallel slots 27, 27,

arranged obliqnely with reference to the forward margin of the bar. These slots engage headed screws or studs 28, 28,` extending therethrough and fixed in the rack-bar, said studs acting to hold said release bar in position and to guide the same so that it has an oblique movement on the rack-bar. The margins of the bar adjacent to the said slots 27 are curved rearwardly, thereby forming projections 27, 27", within which the rear parts of said slots are formed.

At the left side of the carriage is an actuating rod I29, the same comprising a Hat metal strip having sliding engagement with the flat top bearing surface of the rack-bar and arranged parallel with the release bar slightly in the rear of its forward margin. Said rod 29 extends laterally beyond the carriage and passes through a guide slot formed injthe adjacent side plate 30 of said carriage. At the outer end of the rod is provided a knob 31 adapted to be pressed by the finger of the operator to effect the inward endwise movement of the rod. The

inner end portion of the rod is enlarged 1 transverse shoulder 24a and an oblique movement is given to the release-bar by the action ofthe guide slots 27, 27 on the studs 28, 28, whereby the release-bar is shifted forwardly; the end of the rod sliding on the shoulder 24 as the release-bar 24 moves forwardly.

At the opposite right-hand end of the carriage, the release-bar is provided with an actuating device performing the same function as the actuating device at the left hand end of the carriage, but embracing a combination of levers operating as a compound lever. As illustrated, these levers are two in number. One of the levers 35 is pivoted upon the carriage in the Irear of and inwardly from the end of the release-bar, by means of a pivot-stud 36, inserted in the raclebar and e'xtending though the lever intermediate of its ends, thereby forming two arms 37 and 38. The left-band or longer arm 37 is curved and partially embraces a rearward projection 27b of the release-bar, in which is formed the rear part of the right-hand slot 27, and engages the left hand and rearward part o-f the margin 'of said projection so as to act thereon in a direction forwardly and to the right, when the said arm 47 is swung forwardly. The right-hand arm 38 of the lever is made of U-shape and is provided at its outer end with a short bearing surface 39. The other lever 40 of the compound lever is pivoted to the rack-bar at the right of the lever 38 and adjacent to the end of the release-bar. This lever is pivoted on the rack-bar so as to swing in a horizontal plane, by a pivot stud 41 located intermediate of its ends. The longer or right-hand arm 42 of the lever 40 projects outwardly through a slot in the adjacent side plate of the carriage and beyond the same, said arm being suitably formed to provide a finger-piece having a rearwardly facing surface, adapted to receive the pressure of the operators finger in j manipulating the actuating device. The inner or left-hand arm 43 of the lever 40 extends toward the lever 35 and constantly engages the front face of the arm 38 thereof. By exerting a pressure in a forward direction upon the outer end of the arm 42, t-he attached one end of a coiled spring 44, the

opposite end of said spring 4being fixed to the carriage and at such point that the axis of the spring substantially coincides with the direction of movement of the releaseibar.

As shown in the drawings, the rear margin of the release-bar provided With a hooked projection 45 preferably formed integral with the bar, and to which the end of the spring may easily be attached. he function of the spring is to draw the release-bar rearwardly to its non-operative position when the pressure on either of the actuating devices is released. These actuating devices are provided at both ends of the carriage to permit the release-bar to be operated by either hand of the operator and are designed to bcreadily vand easily accessible to the hand of the operator when grasping either of the knobs of the platen for the purpose of turning the platen, or for shifting the carriage from left to right. The left-hand actuating device, embracing the endwise movable rod, enables the operator, in pressl ing' o-n the rod, to shift the carriage to the right while simultaneously operating the re' lease-bar to release the escapement mechanism from'the rack-bar. This feature is fully set forth in the prior U. S. Letters Patent to Ingersoll and hence does not constitute a part of the present invention. The right-hand actuating device made as described, however, has advantages over the corresponding devicey shown in the said patent ztolngersoll, as will appear 'from thev following. In the prio-r device, the lever handle, corresponding to the lever arm 42 in my present invention, was moved rearwardly to operate the release-banand to so operate the device it was necessary for the operator to use the thumb for this purpose. In shi/fting the carriage with the right hand, the natural manner in doing so is to grasp the right-hand platen knob with the thumb and index finger, and to also utilize the thumb for operating the release-bar involves an unnatural position of the hand. Moreover, when the thumb is used to press the righthand release lever'backwardly, the thumb and hand are'brought in position for contact with parts cf the machine forward of the carriage, as the latter is moved toward the left. but when the release lever` is arranged to be operated by the, finger, as herein dey scribed, the fingers and thumb may pass behind the parts in front of the carriage, without liability of striking the parts referred to.

In my 'device the lever arm 42 is shifted forwardly/toward the operator to operate the release-bar. Thus when the platen knob is grasped by the right hand in the most natural manner, the second finger may be easily and conveniently employed in manipulating the release-bar without shifting the position of the hand upon the platen knob, and without liability of injuring` the hand by its contact with the parts at the right side of the machine, in the rapid movement of the carriage toward the left.

A. furthe-r advantage gained b v the construction described in the right-hand release device, is that the release-bar may be thereby more sn'ioothly and easily thrown lorward against the action oi its retraeting spring, because of the fact that the lever arm which directly engages the release-bar, acts thereon in an oblique direction and substantially in the. direction of movement of the release-bar.

rl"he features of the device embodied in my inventionmay be modified in the detailsl of construction without departing 'from the spirit of my invention, and for that reason l do not wish to be limited to the particular details of construction illustrated and desrrilwd, except in so far as specifically pointed out in the appended claims.

l claim as my invention:

l. The combination with a carriage rackbar, a pinion, a platen mounted on the carriage, of a release bar on and having horizontal movement transversely of the carriage, means acting on thev release-bar to move the same transversely backward, and means for actuating said release-bar transversely forward, comprising a lever pivoted on said carriage and having an arm which extends to the left of its pivotal axis and acts on the release bar in a direction to movethe same forward, and a second lever pivoted on the carriage and having an outer arm extending outwardly from the adjacent end of the carriage, and an inner arm adapted to act rearwardly on the right-hand arm of the rst mentioned lever.

2. The combination with a carriage rack bar, a pinion, a platen mounted on the carriage, of a release-bar having horizontal movement on the carriage endwise and transversely in an oblique path, means acting on the release-bar to move the same endwise and transversely backward, and means for actuating said release-bar endwise and transversely forward, comprising a rearward projection on the release-bar having a bearing surface facing rearwardly and to the left, a lever pivoted on said carriage and -provided with two arms, one of said arms acting on said bearing surface in a direction forwardly and to the right, and means adapted to act rearwardly on the other arm of said lever. i

3. The combination with a carriage rackbar, a pinion, a platen mounted on the carriage and having turning knobs at both ends of the carriage, of a release-bar having horizontal movement on the carriage endwise and transversely in an oblique path, a relx1-acting spring acting on the release-bar to move the same endwise and transversely` backward, and means for actuating said release-bar endwise and transversely forward, comprising a lever pivoted on said carnage,

and having an arm which extends to the left' of its pivoted axis and acts on the releasebar' in a direction forwardly andl to the right, and a second lever pivoted on s aid carriage and having an outer arm extending outwardly from the end of the carriage adjacent to the platen turning knob at the right-hand end of the carriage and an inner arm adapted to act rearwardly 'on the righthand arm of the rst mentioned lever.

1. The combination with a carriage rackbar, a pinion, a platen mounted on the carriage and having turning knobs at both ends of the carriage, of a release-bar having horizontal movement on the carriage endwise and transversely in an obvided with two arms, one of said arms eX- tending to the right of the pivotal axis of the lever and the other of said arms eX- tending to the left of said pivotal axis and Aacting on said bearing surface in a direction rwardly and to the right, and a second lever plvoted on sald carriage and provided with an outer arm extending outwardly from the right-hand end of the Carriage adjacent to the platen turning knob at that end of the carriage, and an inner arm adapted to act rearwardly on the right-hand 15 arm of the first mentioned lever.

In testimony, that I claim the foregoing as my invention I aliix my signature in the presence of two Witnesses, this 19th day of January, A. D. 1914.

y CLAYTON C. HARTING.

Witnesses:

EUGENE C. WANN, MAURICE D. HERMAN.

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