US80511A - John schumacher and henry upjohn - Google Patents

Description

@uiten taten atttt @ffice Letters .Patent No. 80,511, dated July 28,1868.

IMPROVE-'JD MACHINE -FOB. PRESSING AND -GROOV-ING' SEAMS IN TINWARB.

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'.IO` ALL WHOM IT MAY CONOERN:

Beit known that we, JOHN SonUMAonssn and4 HENRY Unions, ot nn Arbor, in the county of Washtenaw, and in the State of Michigan, have invented certain new and useful Improvements in Machines for Grooving and Pressing Scams in Tin-Ware; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters-of reference marked thereon.

In the annexed drawings, making part of this specification, A represents the base of this machine, which may consist simply of a b-lock of sufiicient size andweight to keep the machine steady in its place. Upon this base is erectedha standard, B, which is'rnade of metal, and-divided 'or' made double at its upper end. Projecting from' this standard are two arms, and D, said arms being. made` of metal, and placed parallel to each other a suitable distance apart. Between these' two arms is placed a' rack-bar, E, with its teeth projecting downward.. This rack-bar is moved by means `of a pinion, Gr, seen in dotted line, and secured upon a shaft which runs crosswise through the standard B. The shaft is provided with a crank'fhandle, by means of which itis revolved, and the pinion rests between the two parts of the standard.

That end of the ba-r E which plays between the arms C and D, is -secured between two metalijaws, I I. These jaws embrace the arm D, and have a bolt, e, passed through, above said arm, to secure them to it, and also to regulate the position olf the bar E. The jaws are to be perforated withiseveral holes, so that the' boli: can be shifted, in orderdto raise or lower the bar E at pleasure.

Between thejaws I, andat the end of bar E, is secured a corrugated roller, J. To the upper side of bar E, and above the roller J, is secured a strong spring, and to this spring is connected a friction-roller, a. The roller J plays, when' the machine is not in use, against the lower arm C, and the roller a plays :all the while against the arm D. v i

H represents a slotted gauge-plate, which is secured to. the side of the arm C, and which is capable of adjustment longitudinally upon said arm.

In'using this machine, the tin, lafter being lient in the usual manner for forminga joint, is placed with its joint upon the arm C, beneath the groove or corrugation in the -roller J, the 4inner edge Vof the pieces of tin resting against the gauge H.. The-rack-bar E is then operated the pinion G, so that the roller J is passed over the seam enjoint. The roller presses the groove in the joint'as it passes over it, being pressed down firmly upon it by the spring upon the upper side of the' rackbar, and to which the frictionroller a is attached. The portion of roller J', markedrx, presses the edge of the seam down. Y

The gauge H serves to regulate the distance which the tin passes over the arm C, and also acts as a rest for its inneredge while it is being operated upon. i v

We arefully aware that the machine composed of the arms C D, rack-bar E, having a roller on its end, and operated substantially as herein set forth; 'is lnot newf Our invention only 'consists in the adjnstability of the rack-bar, the construction of the roller, and the addition of .the gauge.

Having thus fully described our nvention, what we claim as new, and desire to secureby Letters Patent, is-

'lhe gauge H, used in combination with the arm C, as and, for the purpose set forth.

In'testimony,thatwe claim the foregoing, wephave hereunto set our hands,- this 25th day of'March, 1868.

` JoHNsonUMAoHnn,

HENRY UPJOHN.

Witnesses:

ZIM P. Kme, Tnnooonu Besseren.

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