US987925A - Type-writing machine. - Google Patents

Description

f J. S. STEWART. TYPE WRITING MACHINE. APPLIGATION FILED JUNI: 19, 1909.

Patented 111111.28, 1911.

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-is a plan view of so much JAMES S. STEWART, OF NEW YORK,

' PANY, OF NEW YORK, N.

N. Y., ASSIGNOR TO ROYAL TYPEWRITER COM- Y., A CORPORATION OF NEW JERSEY.

TYPE-WRITING MACHINE.

Specification of Letters Patent. Application led .Tune 19, 1909.

Patented Mar. 28, 1911. Serial No. 503,051.

To aZZ whom it may concern.

Be it known that I, JAMES S. STEWART, a citizen of the United States of America, residing-in the borough of Brooklyn, city and State of New York, have invented certain Improvements in Type-Writing Machines, of which the following is a specification.

This invention relates to scale bar devices to aid the operator in adjusting a point on the. sheet in the machine to the printing point.

In the-accompanying drawing; Figure 1 of a Royal Standard typewriting machine as is required to illustrate this invention: Fig. Q, is a detail sectional view: and Fig. 3 is a detailsection showing the relationship of the dust guards v and the platen of the machine.

a is the platen provided with usual turning knobs 5,5; and c, c, are the side plates ofthe platen frame. Extending between the side plates below the platen is a transverse rod d upon which is adjustably mounted a pointer or index finger c formed with a projection e on its under face havingV a circular seat to tit vided with a set Screw f extending through its top portion and impinging against the rod. By this means, the pointer may be accurately set.

Royal Standard machines are equipped with dust guard plates g, g between the inner contiguous edges of which the type bars pass to the usual type bar guide 7L. These dust guards serve to protect the type bar segment and the bars themselves from dust and dirt of erasure. Their rear edges are horizont-ally disposed in a plane below the platen and may extend somewhat under it as indicated. On these dust guards is inscribed a scale there being preferably a scaleV section on each clust guard respectively on opposite sides of the printing point; and in that case there may be two index fingers e as indicated. The dust guard plates may be considered as part of the frame of the machine and the scale and pointer may be -the center to the left hand the transverse rod d and. proadjacent the rear/ed and a operating with the s aleV and moving with'- a supplementary scale has the advantage of being always in convenient view of the operator no part of it ever being obscured. Moreover, such a supplementary scale may be' provided with large figures that may be easily read by the operator. This plan of providing a scale on the frame of the machine in a plane below the platen is, so far as I am aware, new. In Royal Standard machines, the platen is removable and therefore-the pointers e may be readily reached for adjustment. However, when they are once adjusted in assembling of the ma chine, there is no occasion for thereafter disturbing them. The scale at the left of the printing point or type barguide h, reads from` side of the machine and is a margin scale. That 011 the dust guard to the right reads from the right hand side of the machine and is a tabulating scale. There is a pointer c for each scale.

I claim:

1. A; front strike, bar, chine comprising Va frame, a transversely movab'le platen, two cover-plate dust guards overl ling the type bars," arranged respectivel y' on opposite sides ofthe printing poinig' ,located below and'in/ front of the platentand' #having a; scale on one or both typewriting ma- 2. A front strike, bar,l typewriting machine comprising a frame, a transversely movable platen, two hor'zontallydisposed cover-plate' dust guards verlying the type bars, arranged-respectively on opposite sides of the printing pointFlocated .below and in vfront of the platen and having a scale on the flat horimntal face of one or'both adjacent the rear edge, and a pointer cooperating with the scale and moving with the platen.

In testimony whereof, I have hereunto subscribed my name.

JAMES S. STEWART.

used in lieu of, or as supplementary to, the Witnesses:

ordinary scale bearing upon the face of the L. C. MYERS,

platen adjacent the line of print. Such A. O. SACKE'IT.'

Copies of this patent may be obtained for iive cents each, by addressing the Commissioner of Patents) Washington, D. C.

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