US1841899A - Typewriter - Google Patents

Description

Jan. 19, 1932. W. Lim 1,841,899

TYPEWRITER Filed Jan. 24, 1928 INVEN TOR.

ATTO EYS.

Patented Jan. 19, 1932 WILLIAM LILLY, OF NEW YORK, N. Y.

TYPEWRITER This invention relates to-typewriters and more especially to that type of machine in which the type is carried by a shuttle supported upon a stationary anvil and the type and paper are brought into printing relation by a hammer-like blow by means of a pivotally mounted lever. The well known Hammond typewriter is an example of such a machine.

It is an object of this invention to dispense with the hammer-like blow and to provide improved means for bringing the paper and type into printing relation. According to this invention the pivoted member for producing the hammer-like blow is replaced by a jointed member pivoted at one end and having at the other end a roller for bringing the paper into printing relationship with the type. Resilient means are provided for i) yieldably holding the roller in a predetermined position and maintaining uniform pressure of the roller against the paper. When the member is rotated about its pivot, the roller rolls the paper into printing relation with the type in tead of bringing it into such relation with a hammer-like blow as heretofore. The noise incident to the opera tion of the machine in which hammer-lilie blows are struck is overcome and the force necessary to secure a good imprint on the paper is reduced since a better imprint is obtained by means of the roller.

Other objects, novel features and advantages of this invention will be apparent from the following specification and accompanying drawings, wherein Figure 1 discloses the pivoted member in its inoperative position.

v Figure 2 discloses the position assumed by the pivoted member when the paper is rolled into printing relation to the type; and

Figure 3 is a section on the line 33 of Fig. 1.

In the drawings the disclosure is limited to the particular elements which have been improved and those elements directly cooperating therewith. The remainder of the machine has not been disclosed as it (litters in no way from the commercial Hammond typewriter.

Application filed January 24, 1928. Serial No. 249,071.

10 designates the stationary anvil upon which the type shuttle 11 is movably mounted. As in the Hammond machine three rows of characters are provided on the shuttle, the various rows being brought into printing position by vertical movement or" the anvil. 12 and 13 designate the rollers by means of which the paper 14; is held in proper position and advanced as desired. 15 is the ribbon shield which is provided. with a slot with which the particular character on the type shuttle that is to be imprinted is brought into register upon movement of the shuttle 11 who a key, not shown, is depressed.

16 is a levermounted on a shaft 16a and replaces the hammer provided in the Ha...- inond machine and movement is imparted thereto in exactly the same manner as heretofore. To the upper end of the lever 16 is pivoted an arm 17 comprising a pair of spaced members between the free ends 01 which. is rotatably supported a wheel 18. Rollers 19 are arranged at spaced points on the periphery of the wheel. A link 20 has one end attached to the arm 17 and has its other end extending through an eye formed in the shoulder 21 projecting from the lever 16. A nut 22 is provided on the end of the link and contacts with the shoulder 21. A helical spring 23 surrounds the link 20 and so has one end bearing against the shoulder 21 and the other end bearing against a collar threaded on the link 20.

The arrangement of the various elements inst described is such that when the lever 16 is rotated about its pivot one of the rollers 19 comes in contact with the ribbon shield 15 just below the bottom of the slot therein and then rolls upwardly into contact with the paper 14, thus bringing the paper and the ink ribbon 25 into printing relation with the par ticular character arranged in alin-em lit with the slot. The upward movement of the roiler is continued a suflicient distance to bring the entire surface of the type character into printing relation with the paper. The upward movement is so limited however that should a type character on the bottom or middle row be in printing position there will be no pres sure applied to the paper above the top of such character, thus avoiding pressing the paper into printing relation with more than one row of type. Suflicient pressure is sup-- plied by the spring 23 to cause a good imprint to be made on the paper and to main; tain uniform pressure. The pressure applied by the roller 19 may be varied by'adjustment of the spring 23.

A detent 26 is p ovided for holding the wheel 18 against rotation, the arrangement being such that anyone of the rollers 19 may be utilized. The peripheral faces of the three difl'erent rollers may be suitably curved to adapt them for different uses to which the typewriter may be put, namely, single sheet ty ing, manifolding and stenciling.

It is of course understood that various structural changes may be made in the device above disclosed without in any way departing from the spirit of the invention as defined in the appended claims.

I claim:

1. In a typewriter, a type carr er, a pivoted lever movable toward and away from said carrier, an arm pivoted to said lever at a point removed from the a. 1 of said lever, a roller carried by said arm, a resilient connection be tween said arm and lever, and means to support a sheet of paper between said roller and carrier whereby the roller engages the paper and forces the same into printing relationship to the carrier upon actuation of said lever.

2. In a typewriter, a type carrier, a pivoted 1 lever movable toward and away from said carrier, an arm pivoted to said lever, a wheel rotatably carried by said. arm, a plurality of rollers mounted on said wheel, a resilient connection between said arm and lever, and means to support a sheet of paper between said roller and carrier whereby the roller engages the paper and forces the same into printing relationship to the carrier upon actuation of said lever.

3. In a typewriter, a type carrier, a pivoted lever movable toward and away from said carrier, an arm pivotally connected to said lever, a link having one end connected to said arm and having a sliding connection with said lever, resilient means tending to force said link in one direction, means for limiting movement of said link, a roller carried by said arm, and means to support a sheet of paper between said roller and carrier whereby the roller engages the paper and forces the same into printing relationship to the carrier upon actuation of said lever.

4. In a typewriter, a type carrier, a pivoted lever movable toward and away from said carrier, an arm pivotally connected thereto, a link having one end connected to said arm and having a sliding connection with said lever, resilient means tending to move said link in one direction, means for limiting such a movement, a wheel mounted on said arm,

a plurality of rollers carried by said wheel, and means to support a sheet of paper between said roller and carrier whereby the roller engages the paper and forces the same into printing relationship to the carrier upon actuation of said lever.

5. In a typewriter, a type carrier, a pivoted lever movable toward and away from said carrier, an arm pivoted to said lever, said arm having a yoke formed at its free end, a wheel supported by said yoke, a plurality of rollers supported by said wheel, a resilient connection between said arm and lever, and means to support a sheet of paper between said roller and carrier whereby the roller engages the paper and forces the same into printing relationship to the carrier upon actuation of said lever.

6. In a typewriter, a type carrier, a pivoted lever movable toward and away from said carrier, an arm pivoted to said lever at a point removed from the axis of said carrier, a roller carried by said arm, means tending to maintain said arm in a predetermined position relative to said lever, and means to support a sheet of paper between said roller and carrier whereby the roller engages the paper and forces the same into printing relationship to the carrier upon actuation of said lever.

In testimony whereof, I have signed my name to this specification.

WILLIAM LILLY.

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