US1736112A - Paper holder for typewriters - Google Patents

Description

Nov. 19, 1929. DENZER PAPER HOLDER FOR TYPEWRITERS Filed May 4, 1929 /rwenfm Patented Nov. 19, 1929 main,

LUIDWIG D'ENZER, OF HAMBURG, GERMANY I PAPER HOLDER FOR TYPEWRITEBS Application filed. May 4, 1929, Serial No. 360,486, and in Germany March.28, 1929. p

The object of the present invention is to produce a simple and efficient device for holding the paper on the platen of a typewriter so as to prevent it from bulging and creasing,

and the invention consists in the provision in the carriage frame of a pair of lever arms which are mounted by means of a sleeve on a rigidly-secured bar and fitted with spring catches which engage in notchesin said bar so as to maintain rollers, carried by the free ends of the arms, normally in contact with the platen, the notches being chamfered so as to cause the catches to be retracted when the arms are turned for separating the rollers from the platen in order to admit the paper.

Fig. 1 of the accompanying drawings represents a front view of the device,

Fig. 2 is a top view of the same, and Fig. 3 is a cross-section. 2O

vers are connected by a rod 6 whereon' rollers f are arrangedso as to allow of belng applied to the platen Z for clamping the paper to the latter, the rollers being arranged to slide and rotate on the rod. Each arm m is fitted with a spring catch 9 in the form of a bellecrank The platen Z of the typewriter is mounted arating the'roller from the platen. in the usual manner in the side plates Z) of a in the arms are formed with finger pieces.

The arms are fitted with finger pieces d whereby they can easily be manipulated.

I claim:

1. In a typewriter, the'combination with a carriage frame and with a platen in said frame, of a bar arranged parallel to the platen and secured to the frame, a sleeve arranged rotatably on said bar, a pair of lever arms secured to said sleeve, a rod connecting the free I ends of the arms, rollers arrangedrotatably and slidably on said rod and adapted to be ap plied by means of the latter to the platen, and spring catches pivoted to the armsand formed with nose pieces whichengage through slots I 111 the sleeve in notches in the bar so as to maintain the rollers normally in contact with the platen,-the edges of the notches being chamfered so as to cause the catches to be retracted when the arms are deflected for sep- 2. Astructure asclaimed in claim 1 where- LUDWIG DENZER.

which is pivoted at h andwhich is controlled V by a spring is situated in a slot in the arm. The bell-crank has a nose piece 1' which works in a slot in the sleeve 0 and which bears under J v the influence of the spring'against the bar a. The latter is formed with notches with which catches, for separating the rollers 7" from the platen in order to admit the paper. When the arms arereturned, the catches snap into re-engagement with the notches soasto press the rollers against the paper.

O the nose pieces 2 normally engage so as to therefore be deflectd, in opposition to the

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