US329149A - Four-edge-tin-folding machine - Google Patents

Description

(No Model.) 2 Sheets-811Mb 1.

J. W. & H. EAGER. FOUR EDGBTIN FOLDING MACHINE.

Patented Oct. 27, 1885.

EFFII Wfineases- (No Model.) i I J. W. 8v H. EAGER. FOUR EDGE TIN FOLDING MACHINE.

2 Sheets-Sheet 2..

No. 329,149. Patented 0613. 27, 1885.

6 1, a J @P fine as ll rrEn STATES PATENT Orrrcn.

JAMES WV. EAGER AND HENRY EAGER, OF SYRACUSE, NEWV YORK.

FOUR-EDGE-TlN-FOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 329,149, dated October 27, 1885.

Application filed March 11, 1885. Sciial No. 158,470. (No model.)

2" 0 all whom it may concern.-

Be it known that we, JAMES W. EAGER and HENRY EAGER, citizens of the United States, residing at Syracuse, in the county of Onondaga and the State of New York, have invented a new and useful Four-Edge-Tin-Folding Machine, for folding tin for flat-seam tin roofing, of which the following is a specification.

Our invention consists in a combination of folders or wings adjusted to swing at the four beveled edges of two plates or clamps, over which the edges of tin are formed or bent, and so connected by means of levers and mitergears so arranged that the movement of one lever by the hand or foot moves or swings the four folders or wings each in its proper direction and all simultaneously.

Referring to the accompanying drawings, Figure 1 represents a plan of the machine; Fig. 2, a side elevation and section taken on the line a: a: of Fig. 1. Figs. 3 and 4 show sections taken on line 00 m of Fig. 1, showing mechanism consisting of cams, levers, and releasing-plate. Fig. 3 shows the plates or clamps open preparatory to inserting the flat sheet of tin to be operated on or bent. Fig. 4 shows the plates or clamps closed and in position for folding or bending the edges of the tin. Fig. 5 represents a detached View of the universal bearing, more fully described hereinafter. Fig. 8 represents the sheet of tin before being operated on; and Figs. 6 and 7, the sheet of tin after the edges are folded or bent, Fig. 7 being shown in perspective.

Similar letters refer to similar parts in the several views.

In the operation the upper plate or clamp, A, is raised by movement of the lever B in the direction of the arrow, as shown in Fig. 3, the lever B being connected to or a part of the cam O, which swings onapivotal point, a, which is supported over the plate A in the arm F, the extremities of which are rigidly attached to the lower plate, E. The plate or clamp A, being attached by the slotted connection b to arm 6 of cam O, is raised by the I pin f during the movement of the lever B in the direction of the arrow shown in Fig. 3. The releasing-plate D is moved diagonally under plate A and from the edges g and h of plate E through the connection a, which is attached to the cam O and upwardlyprojecting lug t on the releasing-plate D, all clearly shown in Figs. 3 and 4.. The releasing-plate D is guided in its movement by suitable guidepins, as, sliding in slots 8 8. (Shown in Fig. l.) The sheet of tin is inserted between the plates or clamps A and E while open, as shown in Fig. 3, and placed in contact with the upwardlyprojecting stops or pins j j j located on the sides 9 and h, and attached to the lower plate, E. (Clearly shown in Fig. 1.) The sheet of tin having been inserted and placed as just described, the next operation is to lower the plate or clamp A onto plate or clamp E through the movement of the lever B in the direction of the arrow, as shown in Fig. 4. During the movement of the lever B, as just described, the releasing-plate D is moved in a diagonal direction toward the edges gand h of the plate E, thus forming two beveled edges,over which the tin is folded or bent, the cam G pressing the plates or clamps A and D firmly against the sheet of tin, all clearly shown in Fig. 4. The sheet of tin being now placed in position, the next operation is to fold or bend the edges, as shown in Figs. 6 and 7, two edges being folded over from above by the swinging of the two folders or wings G and H, and two edges folded or bent under by the swinging of the folders or wings I and J. A swinging motion is imparted to the folders or wings G and I by the rotation of the shaft is, to which are rigidly attached arms Z and Z, motion being imparted to the arms at and n, which are rigidly attached to the folders or wings G and I, by means of the connections m and m.

The mechanism used to swing the folders or wings H and J is an exact counterpart of that just described for swinging folders G and I, motion being imparted by means of the mitergears p and 1), (shown in Figs. 1 and 2,) the supports 1" and r for the bearings of the folders or wings being rigidly attached to each end of 5 the machine, as shown in Figs. 1 and 2.

The support r being rigidly attached to the lower plate, E, and the support 0" being rigidly attached to upper plate, A, as the upper plate, A, is raised or separated from the lower plate, E, perfect alignment is secured for the bearings q q and q g by means of the universal bearing shown in detail in Fig. 5, which is a longitudinal section taken on any of the ISO bearings q q or q q, clearly showing by the dotted lines the movement allowed for the swinging of the folders or wings J and H in a longitudinal direction.

We are aware that prior to our invention tin-folding machines have been made; but

What we claim as our invention, and desire to secure by Letters Patent, is 1. In a four-edge-tin-folding machine, the beveled-edge plates A and E, in combination with the releasing-plate D, operated by the cam C, pivoted to the arm F, and having the arm 6, with the lifting-pin f, the slotted connection b, and the connection 0 to the plate D, all as shown and described,

2. In a four-edge-tin-f01ding machine, the

releasing-plate D, operated as described, and

for the purpose set forth.

3. In a four-edge-tin-folding machine, the combination of the plate A, the plate E, the supports r and 1", respectively attached to said plates, the yielding bearings qq q q, carried by said supports, and the folders or wings J and H, journaled in said bearings, so that the folders or wings are allowed to swing in a longitudinal direction as the plate A is raised or lowered, all substantially as described, and for the purpose set forth.

JAMES WV. EAGER. HENRY E AGER.

Witnesses:

J. H. WATLING, J AS. W. Dow;

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