US13183A - Machine for feeding- sheets of paper to printing-presses - Google Patents

Description

UNITED sTATEs PATENT oEEroE.

A. H. ROWAND, OF ALLEGHENY, PENNSYLVANIA.

MACHINE FOR FEEDING SHEETS OFPAPER TO' PRINTING-PRESSES.

Specification of .Letters Patent No. 13,183, dated July 3, 1855.

tion, in which- Figure l, is a longitudinal vertical section of my improvement, the plane of section being through the center. Fig. 2, is a plan or top view of ditto. Fig. 3, is a detached side view of the clamp which grasps the detached sheet of paper and moves it forward from the pile of sheets.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to a new and im-' proved machine for feeding sheets of paper to printing presses, and consists in the employment of a swinging frame provided with rollers, and a vibrating arm and clamp arranged and operating as will be presently shown and described.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

A, represents a rectangular box of suitable dimensions in which a bed B, is fit-ted, said bed having vertical rods (c) attached to its under surface, on which rods spiral springs (b) are fitted. The spiral springs are attached at their upper ends to buttons (c) on the rods (a) and these buttons are held or sustained at proper points by slides C, see Fig. l. To the under side of the bed B, there is also attached a rod A', which passes through the bottom of the box and has a lever D, attached to its lower end, said lever having its fulcrum at (ci) see Fig. l. The rods (a) and springs (b) also pass through the bottom of the box, the slides C, Aresting on the bottom of the box.

To the front side of the box A, there are attached two uprights (e) (e) one at each corner or side of the box, and the upper ends of these uprights are connected by a cross piece (f) which has a pendent (g) attached to its center. To each upright (e) there is attached a horizontal bar (h) the bars being attached to the inner sides of the uprights. To the ends of these arms there is attached a swinging frame E, having a shaft F, at

.r f l its lower end, which shaft extends entirely across the bed B. On the shaft F, there are placed two rollers G, Gr, and at one end there is a pulley around which a belt (j) passes, said belt also passing around a pulley on a shaft 'I-I, at-the upper part of the frame E. There is also 4a pulley on the shaft I-I, adjoining the pulley (7c) and around this pulley (Z) a belt (m) passes, said belt also passing around a pulley (n) on a shaft I, which has a cone J, upon it. Directly underneath the shaft I, there is a shaft K, which is the driving shaft. The shaft K, has also a cone L, upon it, and by means of the cones J, L, the proper speed is given the machine, a belt or band of course passes around the cones.

To one end of the shaft I, there is a crank M, to which an arm N, is connected. And there is also placed on the crank an eccentric O, to which a bar P, is connected. The arm N, has a projection or prominence Q, on its upper edge and a small bar R, is fitted on the arm near its outer end and secured thereto by a set screw (o). Transversely in the bar R, there is placed a small pin or shaft (p) which has a lip (g) attached.

to it, said lip extending below the under surface of the bar R, and at one end of the pin or shaft (p) there is attached a small segment (1) see Fig. 3. This segment (r) is fitted in a slot the ends of which are curved. The slot (s) is made in a bar S, which is connected to the bar P, the bar S, slides in a groove at the side of the bar R. To the back part of the box A, there are attached two guides T, T, which are rendered adjustable by setscrews The outer end of the arm N, works in a guide U, attached tothe back part of the boxA.

V, V, are spiral springs which are attached to the swinging frame E, and to the uprights (e) (e).

The sheets of paper represented by W, to be fed to the press are placed in a pile upon the bed B, and the springs (ZJ) force or press the paper up against the rollers Gr, G, on the shaft F, of the swinging frame E. Motion is then given the driving shaft K, in any proper manner. The rollers Gr, G, first move the uppermost `sheet of paper backward against the guides T, T, as shown in Fig. 2, and by a red line in Fig. l, and the projection or prominence Q, on the arm N, then strikes against the shaft F, on the swinging frame E, and raises it, and conse quently the rollers Gr, G, are freed from the uppermost sheet of paper, and arm P, is also moved back and the lip (g) is depressed or forced downward in consequence of the bar S, being operated by the eccentric O, the'slot (s) moving the segment (r) at the proper time. The arm N, and bar P, is now moved forward and the lip (g) catches the back edge of the uppermost sheet which was previously moved backward, and the lip closes and grasps the edge of the sheetI which is shoved forward as shown in blue Fig. 1, and caught by nipper or other devices by which it is passed to the form on the printing press. The swinging frame is brought back to its original position by

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