US358894A

US358894A - Comb ehbubottom

Info

Publication number: US358894A
Authority: US
Publication date: 1887-03-08
Anticipated expiration: 1904-03-08

Description

(No Model.)

' VAN SGHAIGK SHARP.

MACHINE EOE SEAMING SHEET METAL.

UNITED STATES PATENT EEICE.

VAN SCHAICK SHARP, OF VEEDSPORT, NEV YORK, ASSIGNOR TO HOL- COMB RHEUBOTTOM & CO.

MACHINE FOR SEAMING SHEET METAL.

SPECIFICATION forming part. of Letters Patent. No. 358,894, dated March 8, 1887.

Application filed June 19, 1886. Serial No. 205,652.

To al whom, it may concern:

Be it known that I, VAN Sonaten SHA Reef Veedsport, in the county oi' Cayuga, in the State of New York, have invented new and useful Improvements in Machines for Seaming Sheet Metal, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

. This invention consists in a novel organization of a machine by means ot' which the socalledcross-seams7 and analogous splicings of tin and other sheet metal can be formed in an expeditious and perfectly workmanlike manner.

This invention is fully illustrated in the annexed drawings, wherein- Figure 1 is aside elevation of the machine having portions of the frame broken away to illustrate more perfectly other more important features. Eig. 2 is a front elevation. Figs. 3 and 4 are enlarged transverse sections on line :v ,Fig. 2, showing the press-beam in different operative positions, and Fig. 5 is a transverse section showing the knife in its operative position for trimming the end of the metal sheet.

Similar letters of reference indicate correspendingY parts.

A represents a stout upright frame, carrying a tab1e,B. Across the top of said table is extended the press-beam G, the under side of which is curved longitudinally in the form of an inverted archgand under the pressbeam, and parallel therewith, is a vertical offset, a, extending across the surface of the table, for the purpose hereinafter described. The ends of said press-beam are provided with trunnions or stud-pins,which project through vertically-slotted guides D D,risingfrom opposite sides of the table and rigidly secured to the frame A.

Underneath the table,and parallel with the pressbeam G,is arranged a shaft, cl., journaled in suitable bearings on the frame. To the ends of said shaft are attached two cranks, Z) Z), which are set at an angle in relation to each other, for the purpose hereinafter explained. These cranks are connected with the trunnions on the ends of the press-beam,at the outside of the guides D D, by means of pitmen F F. On the shaft a is also secured a pinion,

(No model.)

. P, which meshes in asegment of a gear, I, journaled on a gudgeon attached to the leg ofthe frame A,below the shaftc. On the side of the gear I is a segment of a pulley, L, which is rigidly attached thereto and journaled in common therewith.

To the base of the frame A is connected a treadle, T, and to the latter is attached one end of a belt, c, the opposite end of which runs over the periphery of the pulley, and is firmly secured to the end of the segment thereof. To the same end of said segment is attached one end of a spring, d, the opposite end of which is secured to a cross-bar, e, or other suitable support on the frame A.

To the top of the table B, inl front of the press-beam,is attached a straight gage, e, eX- tending along one side of the table,for the purpose of guiding the tin or sheet metal so as to bring the seam thereof parallel with the press beam.

Backof the press-beam, and parallel therewith, is a skeleton roller, R, journale'd in arms Z, projecting from the rear end of the table, said roller having longitudinal cleats on which to hang the end of the sheet metal, which is bent over so as to permit of hooking it onto one of the cleats. The roller is provided with a crank, m, by which to turn it, and on the end of said roller is also aiiixed a ratchetwheel, u, with which engages a dog, o, connected to the table, as shown in Fig. l of the drawings.

Across the table B, some distance above it and back of the preSsbeam, is extended a bar, j', which is secured at opposite ends to the guides D D, adjustable vertically thereon, and from the bottom of said bar project downward two or more lugs, c v, which serve as stopgages in placing the sheets to be seamed under the press-beam, the vertical adjustment of said gages being necessary to accommodate the same to different thickness of the sheet metal.

The operation of my invention thus far described is as follows: Before the tin or sheet metal is subjected to the operation of the machine the edges of the sheets to be joined are bent over so as to hook into or interlock with, each other, and the sheets thus interlocked are passed along the top of the table B until ar `23 ings.

4o seam of. the sheet metal.

5 pressing the treadle T the pulley L and gear I receive a partial rotation and transmit rotary motion to the pinion l?, which, being fastened to the shaft a, imparts rotary motion to the cranks b b, and the latter imparts to the ro press-beam a combined longitudinal rocking or oscillatory and vertical reciprocating motion at right angles to the plane of the table. The press-beam is thereby caused to press upon the folded or interloeked edges of the sheet metal successively from one side of the table toward the opposite side, the pressure being applied with sufficient force to effectually close the seam of the sheet metal, as represented by dotted lines in Fig. et of the draw- The offset u in the surface of the table is of the proper depth to receive in front thereof the compressed folded edges of the sheets and leave the tops of the sheets flush with each other. The folded forward edge of z5 the first sheet is hooked onto the skeleton roller R, upon which the joined sheets are subsequently wound by turning the crank m. The engagement of the dog o with the ratchetwheel a serves to retain the roller R from re- 3o verse movement after it is released from the make adjustable vertically by providing the knife with vertical slots, through which the attaching-bolts M' pass. rIhis allows the knife to be raised, so as not to interfere with the operation Of the press-beam in compressing the By lowering the knife so as to project below the bottom of the press-beam,said knife can be employed for cutting or trimming the sheets.

Having described my invention, what I desire to secure by Letters Patent is- 1. The combination,with the sheet-supporting table, of a press-beam extended across the top of said table and arranged movably at right angles to the plane thereoi`,and oscillatory lon` 5o gitudinally, substantially as and for the purpose specified.

2. The combination, with the sheet-support ing table, of a press-beam arranged across the top of and movably at right angles to the plane of the table, and oscillatory longitudinally,and curved at its under side longitudinally in the form of au inverted arch, substantially as described and shown.

3. In combination with the sheet-supporting table, vertical guides rising from opposite sides of said table, a press-beam extended across the top of the table and arranged movably vertieallyin said guides, pitmen on opposite ends of the press-beam, and cranks connected with said pitmen and set at an angle in relation to each other to impart a longitudinally-rocking motion to the press-beam, substantially as and for the purpose set forth.

4t. In combination with the shect-supporting table, a longitudinally-rocking press-beam, a pulley and gear pivoted in common on the frame Y of the machine, abelt on the pulley, a treadle connected to the belt, a shaft extended across the frame parallel with the press-beam, a pinion on the said shaft meshing in the aforesaid gear, cranks set at an angle to each other on the ends of the shaft, and pitm'en connecting the cranks with the ends of the press-beam, all combined to operate substantially as and for the purpose specified.

5. In combination with the sheet-supportin g table and pressbeam, a knife extended lengthwise said press-beam and secured thereon to be adjustable vertically, substantially as and for the purpose set forth.

6. In combination with the sheet-supporti ng table and press-beam, a shaft parallel with said press-beam, cranks set at an angle to each other on the ends of said shaft, pitmen connecting the cranks with the ends of the press-beam, a pinion on said shaft, a pivoted segmental gear meshingin said pinion, a segmental pulley on the side of said gear and pivoted in common therewith, abelt on the pulley for turning the same in one direction, a treadle connected with said belt, and a spring for turning the pulley iu the opposite direction, all combined substantially as described and shown, for the purpose set forth.

In testimony whereof I have hereunto signed my name and affixed my seal,in the presence of two attesting witnesses', at Syracuse, in the county of Onondaga,in the State of New York,

l this 14th day of June, 1886.

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