US1098922A - Type-writing machine. - Google Patents

Description

B. C. S'HOKNEY,

TYPE WRITING MACHINE,

APPLICATION FILED MM4,1909.

atented June 2, i914.

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B''ELINHM C. STICKNEW', GIE* ELIBETH,

TYPEWRITER MPANY, ULF NEW 'FRK, 1l. Y., A.

lll tllillltllillill l rtrn-Wnirno trentaine.

Specification ot llettere. Patent.

Patented tune t2, i" little Application tiled May 1909. A@ferial lilo. 1193,908.

To all whom 'it may concern.:

lle it known that l, BURNHA'M C. STICK- Nnr, e citizen ot the United States, residing in Elizabeth, in the county ol Union and State of New Jersey, have invented certain new and useful linprovements in TypelWriting Machines, of which the following is e specification.

This invention relates to the linospacinpg mechanism of typervriting machines, and particularly to ineens for eonvenientlgI Writing exponents and characters above end below the line of Writinga The platen is usually mounted for rotetion and is provided with a notched linespace Wheel, in Which plays a spi.ing:g-}}ressed detent or check. According to the present invention, a handle controls seid detent or check., a pivotal connection being,I provided between the handle and the check, whereby the handle may move the elieelr, together with the wheel, in either direction from initial position,` tor about halt' a line el spring-pressed cani is preferably provided for returning the handle and checlr to nor mel positions; end stops are also provided for limiting the stroke in each direction to less than o linespacea till lill

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ln. the accompanying drawings, Figure l. is a sectional end elevation oi: the platen trarne and line-spacing Wheel with inv int proveniente applied thereto; the 'parte he ing shown in normal positions. 5?; io o similar view, showing the platen turned to the right for less than a line rlistence, to permit a charecte, Written shove t line ot Writing5 it is e similar vr showing;l the platen turned to the lett Iter e similar distance, to permit a character to be Written below the line oiE Writino. lll all is a perspective View ola pivotetlj eatin arno. for coperation with the platen adj'listing;I lever. Fig. 5 is a front view oli the platen and its connected parte, the lino-space Wheel. being partly broken away.

.lypes l strike upon the front ot a cylindrical platen 2, which is mounted by means ot an axle 3 in the ends fl of a platen tre/nie 5. llixed on the axle outside of the platen trarne is a line space Wheel o.. ein arm, 'l' carries at its lower end a roll 8, which is pressed by o sprint` 9 against the teeth ol the line-spoce wheel, to check or detain the lotter against accidental rotation. Said detent 'i' has a large hub, whereby it is pivoteol upon a ivf 'et 10, which is provided upon a lever 12 iiaviin; s, handle l, seid lever pivoted upon a stud 14 projecting from theplaten traine enel. The wrist 1Y0 is eccentric to the stud le, so that by turning the lever l2 baclmvardly and forwardly, the Wrist and wardly, as et llig. 2 or Fig. 8. lThe bore for the stud let passesthrough the Wrist l0; and the spring 9 is coiled around the hub et' the detent and bears et ,one end against a pin l5 projecting from the 'pleitenframe; the other end bearing Vegg-einst the detent itself. it nut or other keeper 16 inetA loe provided on the stuo Eel to retain the parts. llloe lever l2 also has an arm 17, having at its end a roller stud 1S to engage a lt-notch termed on a plate or erin which ispiv# otod et 52o upon a bracket 2l` secured to the platen trarne. ends fl. sprinpY Q2, coiled erounfl the stud 2G and bearing; at one end ogoinst a lined pin 23 and atl the other end against a pin on the erm 19, causes the of the il-notch .in said arm 19; this being the normal position of the parts,as et Fig, l.

lill hen the handle 13 is swung beclrwordly, the roller stud t8 rolls down one cam edge .l of the lll-notch. Upon relieving the handle 13 troni, pressure, a spring' 22 Lliorccs the erin 19 to the right, the earn edge 25 forcing the arni 17 to rise until the stud lci rests in the bottom ot the notch; Thus the ole-tent "l is thrown np and the platen is there by moved from the 'position at liip. l. to that at llil the pieten turn d downwardly) toi' the distance between the horizont-el arial plane ot" the pieten to the point indicated at 2i', 2, thus *een initting a character to he Written a little lease ofthe handle 13, the parte are returned by the spring' 2i?, to normal positions.

When the handle pulled forwardly to the position at Fin'. 8., the roller stud 25 rides up along a 1,ein edge lll 'forming the other side ot' the il-notch, and the eccentric l0 svi/ings downwardly and forces down the tletent 7, together with the line-space wheel and pieten, so that the ti'ontof' the latter is turned upwardly from 2G to 2l, to permit n chrectei' to be written below the line of writing. Upon release of the handle 13, the spring Q2 again returns the parts to initial position. lt will be seen that the handle 13 cletent l may be carried upwardly or downroller stufll to be. held firmly to the bottom` titi @lli

above the line of Writing. Upon the res reo lll@

is constantly connected to the platen, and that by a single stroke it may advance or retract the platen.

The cam Q5 terminates in a shoulder or stop 29, and the cam 28 terminates in a stop 30, 'the stops limiting the movement of the inet-space wheel in each direction from normal ifo less than the distance from one tooth to the next of the line-space wheel.

The invention is not limited to the employment of the spring for retuining the platen to initial position from the position at Fig. 2 or at Fig. 3, or for holding the parts in their normal positions.

Having thus described my invention, I claim:

1. In a typewriting machine, the combination with a platen and a line space wheel., of a lever having an eccentric wrist, a detent pivoted on said wrist and pressed by a spring against the teeth of said line-space wheel, said lever provided with ahandle and movable in opposite directions from normal position, and means to hold said lever in normal position.

2. In a typewriting machine, the combination with a platen and a line-space wheel, of a lever having an eccentric wrist, a detent pivoted on said wrist and pressed by a spring against the teeth of said line-space wheel,"'said lever provided with a handle and movable in opposite directions from normal position, means to hold said lever in normal position, and means to determine the length of stroke of said lever in opposite directions away from normal position.

3. In a typewriting machine, the combination with a platen, a platen frame and a line-space wheel, of a lever pivoted upon the platen frame and having a handle and an arm, and also provided withan eccentric wrist, a detent pivoted on said wrist and pressed by a spring against the teeth of said line-space wheel, a pivoted cam-plate or detent to engage a stud provided upon said arm, and a spring to enable the cam plate to cooperate with said arm to return the latter and said detent to a normal midway positlon.

4. In a typewriting machine, the combination with a platen, a platen frame and a line-space wheel, of a lever pivoted upon the platen frame and having a handle' and an arm, and also provided with an eccentric wrist, a detent pivoted on said wrist and pressed by a spring against the teeth of said line-space wheel, a pivoted cam-plate or detent to engage a wrist provided upon said arm, a spring to enable the cam plate to cooperate with said arm to return the latter and said detent to a normal midway position, and stops to limit the strokes of said arm away from normal position.

5. The combination of a revoluble platen, a dci/ice for determining the extent of linespacing movement thereof, a nger-piece operatively connected to said device for shifting said device and with it the platen either forwardly or backwardly less than a line-space in either direction from a central normal position, and spring actuated means for returning said device to initial position together with the platen.

6. In a typewriting machine, the. combination with a platen and a line-space wheel, of a detent pressed by a spring against the teeth of said wheel, a member having a finger-piece and to which said detentl is pivoted, and means to hold said member and detent in normal positions, said member movable in opposite directions from normal position to shift said detent and rotate said wheel in opposite directions to bring the. printing line either above or below its normal position.

7. In a typewriting machine, the combination with a platen and a line-space wheel, of a spring-pressed detent constantly engaging said line-space wheel, said detent mounted to yield to permit rotation of the platen independently thereof, a handle, means for enabling said handle to move said detent together with said line-space wheel forwardly and backwardly, stops to limit the strokes oit the detent and linespaee wheel to less than a line-space in either direction from a central normal position, and means mechanically determining the normal central position of the detent. l

8. rIhe combination with a platen, of a toothed wheel connected to the platen, a lever pivoted eocentrically of the platen, said lever being capable only of turning movement about its pivot, and being movable on said pivot only in either one of two directions fromA normal central position, means operated by such movement of the lever to turn the said wheel and platen in the direction of movement of the lever, and means to return the lever to normal central position and to return said wheel and platen with said lever and hold said parts in returned position.

9. The combination with a platen, of a toothed line-space wheel connected thereto, a linger piece, means to hold said finger piece in normal position, said finger piece mounted for movement in a single plane only, and movable in said plane either `forwardly or backwardly from normal position, and means operated by such movement of the finger piece to 'turn the wheel and platen either forwardly or backwardly to displace the printing line on the platen either above or below its normal position, and to return the said wheel and platen to restore the printing line to normal position when the lingerpiece is returned to normal position.

10. The combination with a platen, of a toothed linespace wheel connected thereto,

, noname a finger piece, means to hold said finger piece in normal position, said nger piece mounted for movement in a single plane only, and movable in said plane either forwardly or baekwardly from normal position, means operated by such movement of the linger piece to turn the Wheel and platen either for- Wardly or baekwardly to displace the printing line on the platen either above or below its normal position, and means to return said linger piece to normal position together with said wheel and platen.

11. The combination with a platen, of a toothed linerspaee Wheel connected thereto9 a linger piede, said finger piece mounted for and movable in or baclivardly pressure applied means to hold said from normal position by thereto, normal direction, said Wheel to be moved thereby to rotate the platen platen, of a toothed line-space Wheel connected thereto,

a finger piece, said finger piece mounted for movement inra sin lle plane, and movable in said plane either forwardly or back- Wardly from normal position b i pressure applied thereto, means to hold said .iinger piece in normal position and to return it to normal position after it has been moved in either direction, a spring held detent engaging said Wheel and connected to said linger piece to be moved thereby to rotate the platen either forwardly or baekwardly to displace the printing` line either above or below its normal position, and means to return the finger piece to normal position together with the Wheel and platen.

BURN HAM C. STICKNEY. Witnesses Jox-IN O. SnirnRT, K. Fnaivnronr.

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