US228878A - Frank denninger - Google Patents

Description

(No Model.) 8

F. DENNINGER.

Wood Bending Machine.

No. 228,878. Patented June 15,1880.

WITNESSES:

ATTORNEYS.

UNITED STATES PATENT OFFICE.

FRANK DENNINGER, OF NEWsYORK, N. Y.

WOOD-BENDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 228,878, dated June 15, 1880 Application filed April 5, 1880. (No model.)

To all whom it may concern:

Be it known that I, FRANK DENNINGER, of the cit-y, county, and State of New York, have invented a new and useful Improvement in \Vood-Beuding Machines or Presses for Bending and Veneering Piano-Forte Rims, of which the following is a specification.

The object of my invention is to construct a press for bending rims of piano-fortes to the shape required, and at the same time veneering the rims, by which press a number of the rims may be operated on at once.

My invention consists in a press-bed of rect angular form having combined with it loose presser-blocks of the shape to which the rims are to be pressed, and fitted with clamping shackles and screws for compressing and holdin g the rims which areplaced between the blocks in the press. The presser-blocks are also fitted with adjustable gages for retaining the rims in position.

The improved press'is shown in the accompanying drawings, wherein Figure 1 is a side elevation. Fig. 2 is a vertical section on line as m of Fig. 1.

Similar letters of reference indicate corresponding parts.

A is the stand of the press supporting the bed, which consists of the short side portion, a, and long side, a, forming the rectangular bed. These side pieces, a a, are tied by bolts 1), and are fixed with the angle at the center of stand A.

Upon the stand A is fitted a shackle, B, composed of a side bar, 0,

end bars, (I d, and

strap 6, connecting the end bars, d. The upper end bar, (1, is fitted with screws h h.

0 are the presserblocks, made to the shape to which the rims are to be bent, and fitted with strips or gagesff at their ends, which retain the blocks 0 apart and prevent end movement of the rims. The stripsff are adjustable on each block 0, so as to be moved in or out, according to the length of the rim.

1) D are shackles or clamps placed around the side a of the bed and the blocks 0, and fitted with screws 9 for clamping those parts together.

In using this press the shackles D and the strap eof shackle B are first removed, and the blocks 0 then put in place with the rimsi between them. The strap cand shackles D are then applied and the screws h 9 turned to bring the blocks tightly together. By these means four or more rims may be pressed at once and the same bend given to each.

The veneering will be applied to the rims immediately before they are placed in the press, and by the bending operation will be pressed tightly to place.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination, in a wood-bending machine, with the frame A, of the angular bed a a, the clamps B I), having screws h g, and the presser-blocks U, having gages f, for the special purpose set forth.

GEO. D. WALKER, O. SEDGWICK.

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