US387408A

US387408A - Francis x

Info

Publication number: US387408A
Authority: US
Publication date: 1888-08-07
Anticipated expiration: 1905-08-07

Description

(No Model.)

F. X. GANTER. MACHINE FOR CUTTING THE METAL OP SHOW CASE MOLDINGS. No. 887,408. Patented Aug. '7, 1888.

ATTORNEY.

N, PETERS. Phmo-umum hu. Wumn mn. D. r;

UNITED STATES PATENT @rricn.

FRANCIS X. GANTER, OF BALTIMORE, MARYLAND.

MACHINE FOR CUTTING THE METAL OF SHOW=CASE IVIOLDINGS.

SPECIFICATION forming part of Letters Patent No. 387,408, dated August '7, 1888.

Application filed January 17, i888. Serial No. 261,0l7. (No model.)

To aZZ whom it may concern:

Be it known that I, FRANCIS X. GANTER, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Machines for Cutting the Metal of Show- Gase Moldings, of which the following is a specification.

My invention relates to a machine for cutting metal show-case moldings, and is illustrated in the accompanying drawings, in which- Figure 1 is a vertical section of the machine. Fig. 2 is a top view of the machine. Fig. 3 is a front elevation of the machine, in which certain parts are shown in section. Fig. at shows two views of the cutter-shaft drawn to alarger scale. Fig. 5 is a cross section of the feedchute on line 5 5. Fig. 6 shows two views of the cutter-plate on a larger scale. Fig. 7 is a top view of the cutter-plate and the cross-bar on which it is seated. Fig. 8 shows two views of show-case molding, in which two pieces of molding, a b, are jointed together by the end of one piece, I), abutting against the side of the other. The abutting end of piece I) is made to fit accurately against the side of piece a by being out with the machine.

The show-case molding-such as may be seen on the show-cases in drug and jewelry storesis composed of wood covered by sheet metal, usually German silver. Heretofore in joining two pieces of thismetal-covered molding,as shown in Fig. 8 of the drawings, the fit of the jointed parts has been secured .by the laborious operation of filing by a hand-file. The machine shown in the drawings is intended to do this work with accuracy and dispatch, and avoid the necessity of hand-filing referred to.

The letter A designates two standards; B, a crossbar between them and secured to each standard by screws 0. This crossbar has in one side a recess, d, at the bottom of which is a seat, d, for the cutter-plate e, the cuttingedge e of which is on top. To provide for the vertical adjustment of the cutter-plate 6, two set-screws, f, pass up through the seat d and bear on the bottom edge of the cutterplate, and two other set-screws, f, enter laterally into holes gin the plate,and each screw projects through a vertical slot, 9, which opens horizontally through the front of the recess in the cross-bar B. It will thus be seen the said set-screws f andf enable the cutterplate to be adjusted vertically to a nicety and hold it firmly.

The cutter h,which coacts with the cuttingedge e on the plate, is on a rock-shaft, h, which has bearings in a box on top of the two standards. The top of each standard forms the lower half, 6, of the said box, and a half-tubular-shaped plate, I, forms theupper half. This top plate, I, extends entirely across the machine and covers the entire length of thecuttor-shaft h, except one end, to which a lever or arm, k, is attached, and by which the said cutter-shaft is rocked. This box has a Babbitt-metal lining, Z, and the top plate is secured by the screws m. The top plate has holes a, which provide for oiling the shaft and hearing.

The cutter h is on the center of-the shaft h, and in the present. instance is formed by removing a portion of the rounded side of the shaft, leaving a flat surface, 71., whose edge h serves as the cutter. Thus the cutter h does not project beyond the plane of the rounded side of the shaft. By grasping the lever k the cutter-shaft h may be rocked backward and forward in the box I, and thereby the twojaws of the cutter-to wit, the cutter h on the shaft and the edge e on the plate-are made to coact. It is immaterial to the operation whether the cutter h is formed integral on the rockshaft or not. As the top plate, I, of the box covers the cutter-shaft h over its central part, where the cutter h is, it prevents the cuttershaft from springing or yielding when the cutters h e are acting on the metal molding and enables a small cutter-shaft, h, to be used.

The top plate, I, of the box has at its center and front side a feed-inlet, 0, to admit the end of the metal. molding to the'cutters.

The cutters h 0 may vary in their shape or configuration to be adapted to various designs of molding, and may have any shape that will best suit the particular design that is to be cut. The said cutters,.therefore, are removable from the machine, and may be exchanged for others at any time.

A feed-chute, 1?, supports the molding and presents it to the cutters properly. This chute has its end connected to the front of the cross ICO bar by pivot-bolts which pass through the said end of the chute and throughlugs q on the cross-bar. A bracerod, r, supports the chute. This bracerod has its upper end jointed at s to the chute and projects downward to and passes loosely through a roller, 1, supported in bearings I. on the lower edge of the crossbar B. A set'serew, u, in the said roller impinges against the brace'rod r and holds it at any desired point. It will be seen the pivoted chute P maybe inclined to any desired extent. This is of importance, because the same cutters h 0 will have a varying effect on the metal molding by changing the angle of inclination at which the said molding is presented to the cutters. The same cutters may, by thus changing the inclination of the chute P, out one design, I), of molding so that it will joint neatly and accurately with several other moldings, a, each latter being of different design. The feed'ehute has a stop-block, 0, Fig. 2, provided with a set-screw, w. This stopbloek serves to determine the exact length of the molding as it shall be cut by the machine.

This matching together of two pieces of molding I have here termed jointing. it may properly be termed miter-jointing or mitering, and the moldingpieces which form the joint may meet at any angle.

Having described my invention, I claim and desire to secure by Letters Patent of the United Statesl. A machine for cutting metal show-case moldings, comprising a cutter-plate, 0. having an edge shaped to fit a design of molding, and a shaft, h, mounted in suitable bearings, and

intermediate of its ends having a portion of its rounded side 1.'emovcd,whereat is asurface, h, whose edge bisects the said rounded side and serves as a cutter, h, to coach with the said cutterplatc.

2. A machine for cutting metal showcase moldings, comprising a cutter-plate, c,having an edge shaped to tit a design of molding, a shaft, 7/, provided intermediate of its ends with a cutter, h, which is the counterpart of the cutter-plate edge and which does not project beyond the plane of the rounded side of the shaft, and a boxhearing for said shaft,said box-bearing covering the shaft along its length where the cutter is.

3. A machine for cutting metal show-case moldings, having in combination a cross-bar, 13, provided with a recess, d, a cutter-plate, e, occupying the recess, a shaft, h, provided in termcdiate of its ends with a cutter, h, which is the counterpart of the edge on said cutten plate, and a box-bearing covering the entire length of the cutter-shaft.

i. A machine for cutting metal show-case moldings, having in combination a stationary cuttenplal'e, e, a shaft, h, provided intermediate of its ends with a cutter, h, which is the counterpart of the edge on said cutterqdate, and a chute pivoted by one end adjacent to the cutter-plate.

In testimony whereof I affix my signature in the presence of two witnesses.

FRANCIS X. GANTER.

Witnesses:

JOHN E. Mourns, JNo. T. MADDOX.