US1694745A - Sheet feeder - Google Patents

Description

Dec. 11, 1928. 1,694,745

w. M. KELLY SHEET FEEDER Qriginal Filed Aug. 6, 1921 5 s t sh t 1 Dec. 11, 1928. 1,694,745

w. M. KELLY 7 SHEET FEEDER Original Filed Aug. 6. 1921 s Sheets-Sheet 2 Dec. 11, 1928. 1,694,745

' W. M. KELLY SHEET FEEDER Original Filed Aug. 6, 1921 3 sheets-Sheet 3 anon Mo:

4 72% @j I V! drmm Patented Dec. 11, 1928.

UNITED s'r WILLIAM M. KELLY, OF W'ESTFTELD, NEW JERSEY, ASSIGNGR TO AMERICAIT TYPE FOUNDERS COMPANY, OF JERSEY CITY,

JERSEY.

NEW JERSEY, A CORPORATION OF NEVJ SHEET FEEDER.

Original application filed August 6, 1921. Serial No. 490,290, and in Great Britain July 2-7, 1922. Divided and. this application filed April 15. 1927.

The present invention relates to sheet feeders, and more particularly to the type having a pivot-ed frame carrying sheet handling mechanism.

This application is a division of my c0- pending application Serial No. 490,290, filed August 6, 1921.

The object of the present invention is to provide, in a sheet feeder having a pivoted frame carrying sheet handling mechanism, means facilitating the raising and lowering of said frame with respect to the feed board.

The sheet feeder shown in the application referred to is provided with a frame pivoted over the feed board and carrying sheet controlling mechanism. This frame with the parts carried thereby is rather heavy in the large size machines. The present invention provides means for raising and lowering of this frame easily, said means comprising davits secured to the sides of the feeder frame and extending over the pivoted frame and provided with flexible connections to the pivoted frame and suitable operating means therefor, the operating means being adapted to positively hold the pivoted frame in its highest raised position and to impositively hold it at any intermediate position.

Referring to the accompanying drawings for a detailed description of one embodiment of the invention Figures 1 and 2 are fragmentary views of opposite sides of the machine, showing mechanism for raising and lowering the frame pivoted over the feed board;

Figures 3 and4 are detail sectional views illustrating more particularly a brake device for impositively holding the frame at any desired elevation; and

Figure 5 is a. plan view of the press.-

In the drawings, the feed board 210 is shown pivoted at 211 to the side brackets 243 and 244 of the feeder frame. A frame 212 extends above and parallel to the feed board 210 and is pivoted at its rear end on a shaft 213. This frame carries certain sheet manipulating mechanism comprising a side register operating shaft 221 and a lazy or slow down finger operating shaft 222, and the rollers 220 and balls 219 cooperating with the tape 218 on the feed board to advance the sheets. A pair of clavits 242 are secured to the tops Serial No. 184,118.

of the brackets 243 and 244, these davits projecting over the said frame 212 at the sides thereof. Each of the davits has one end of a cable 245 secured to its tip and each cable then passes around a pulley 246 on the frame 212, thence around a pulley 247 at the tip of the davit and thence to a drum 248 secured to a transverse shaft 249 rotatively carried by the davits, there being two drums, one for each cable. This shaft project-s laterally from one of the davits and has an operating handle 250 secured thereto and also a ratchet plate 251 having a ratchet notch 252 adapted to receive the pawl 253 when the frame is in its highest position and thus positively hold it elevated.

In order that the frame may be held at any other elevated position, brake means is provided adapted to frictionally hold the frame against lowering. In the form of the invention shown, this brake mechanism comprises a pivoted brake shoe 254 disposed within a recess in each of the drums 248. One end of these brake shoes is pivoted as at 255 andthe other end is yieldingly forced in a direction to expand the brake, this being effected in the present instance by a lever 256 having a cam end 257 bearing on the free end of the brake, this lever being turned in a direction to expand the brake by the spring 258. The frictional effect is sufficient to hold the frame at any adjusted elevated position and yet may be easily overcome to lower the frame by a slight effort exerted on the handle 250.

Any suitable mechanism may be used on the frame and feed board, or either, for advancing sheets from the left of Fig. 2 to the cylinder 138. When it is desired to feed sheets from the feed board by hand, or get at mechanism on the feed board, the frame 212 may be raised by the means described herein, a raised posit-ion being shown in dotted lines in Fig. 1. A raised position of the feed board 210 is also shown in dotted lines in Fig. 1.

The mechanisms carried by the frame are actuated from shaft 213 and as the frame swings about this shaft, the said mechanisms are not disconnected by the raising movement.

Having thus described the invention, what is claimed as neW and desired to be secured by Letters Patent is:

1. In a sheet feeder, in combination, a pivoted frame, sheet manipulating mechanism mounted thereon, a pair of davits extending over said frame, and means carried by said davits for elevating said frame comprising two drums at the base of the davits and a cord extending from each side of the frame over a pulley at the tip of the adjacent davit and thence to one of said drums, and friction means associated with the drums to hold the frame in any raised position comprising a brake shoe in a recess in the drums and spring over said frame, and means carried by said 20 davits for elevating said frame and holding itin any raised position and releasable means to positively hold the frame in its highest position.

In testimony whereof I hereunto afiix my 25 signature.

l VILLIAM M. KELLY.

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