|Publication number||US242249 A|
|Publication date||May 31, 1881|
|Publication number||US 242249 A, US 242249A, US-A-242249, US242249 A, US242249A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (3), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
I (N0 Model.)
Wood Bending Machine.
No. 242,249. Patented May 31,1881.
no rnzns. Phulo-Lhhngmmr. Washington. D. c.
UNITED STATES PATENT OFFICE.
LUDWIG BARTHELMES, OF ASTORIA, NEW YORK.
SPECIFICATION forming part of Letters Patent No. 242,249, dated May 31, 1881.
Application filed September 16, 1880. (No model.)
To all whom it may concern Be it known that I, LUDWIcr BARTHELMES, of Astoria, in the county of Queens and State of New York, have invented a new and useful Improvement in Wood-Bending Machines or Presses for Bending and Veneering Piano- Forte Rims, of which the following isa specification.
The object of my invention is to constructa press for bendingrims 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.
Myinvention consists in a press bed of rectangular form having combined with it loose presser blocks ofthe shape to which the rims are to be pressed, and fitted with clamping shackles and screws for compressing and holdin g the rims, which are placed between the blocks in the press.
The improved press is shown in the accompanying drawings, wherein Figure 1 is a side elevation. Fig. 2 is a vertical section on line 00 w of Fig. l.
A is the stand of the press supporting the bed B, which consists of the short side portion, a, and long side, a, forming the rectangular bed, that is supported diagonally on the frame A. These side pieces,a a,are tied by bolts 11, and are fixed with the angle at the center of stand A.
Upon the stand A is fitted a shackle, (J, composed of a side bar, 0, end bars, dd, and strap 0, connecting the end bars, (I. The upper end bar, d, is fitted with screws 71 h. The shackle O operates vertically in line with the angle of the rectangular bed B.
D are the angular prcsser-blocks, made to the shape to which the rims are to be bent, and fitted with blocksf at their ends, which retain the blocks D apart and prevent end movement of the rims.
E are shackles or clamps placed around the long side a of the bed and the blocks D, and fitted with screws for clamping those parts together. Another suitable clamp, F, is placed horizontally around the side pieces, a and a.
In using this press the shackles E and the strap 0 of shackle O are first removed, and the blocks D then put in place with the rims, i, to be bent between them. The strap 0 and shackles E are then applied and the screws of said shackles turned to bring theblocks tightly together. By these means four or more rims may be pressed at once and the same bend given to each.
The veneering may be applied to the rims immediately before t-heyare placed in the press, and by the bending operation will be pressed tightly to place. The central vertical pressure obtained by my invention is the essential feature of my invention.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- In a wood-bending machine, the combination of the upright frame A, with the screws h, angular fixed bed 13, having long sidea and short side a, rigidly united with each other and with frameA, and placed diagonally upon the frame A pointdownward, with the upright shackle U and one or more angular presserblocks, D, each presser-block D being one single angular piece to match the angle of the bed B, substantially as herein shown and described.
LUI) \VIG BARTHELMES.
Witnesses WILLY G. E. SCHULTZ, JAMES TURK.
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