US9130A - Machine fob - Google Patents

Description

UNITED STATES PATENT OFFCE.

ABEL BRADVAY, OF MONSON, MASSACHUSETTS.

MACHINE FOR SHAVING SHING-LES.

Specication of Letters Patent No. 9,130, dated July 20, 1852.

To all whom 'it 'ma/y concern:

Be it known that I, ABEL BRADWAY, of Monson, in the county of Hampden and State of Massachusetts, have invented a new and Improved Machine for Dressing Riven Shingles; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which- Figure l, is a plan of my improved machine for dressing shingles; Fig. 2, a longitudinal vertical section thereof, in the line of Fig. l; Fig. 3, a transverse vertical section of the same, in the line y, y, of Fig. l; Fig. 4, a transverse vertical section, in the line e, e, of Fig. l; and Figs. 5, and 7 are views of portions of the machine det-ached.

Like letters refer to corresponding part-s in all the figures. t

The movements of my improved machine for dressing riven shingles, are placed in an oblong frame constructed in any usual manner. A bottomless rectangular box E, for the reception of the riven shingles to be operated upon, is secured to the top of the frame, a little one side of its center. lVhen placed in the said box E, the riven shingles rest upon an elastic bed nF, which is supported by two or more springs (Z, (Z, that are secured to, and rise above the cross piece D.

A lug 71 of the shape shown in Fig. 2, projects from the rear end of the said bed F, into a mortise in the cross piece J, and is embraced by a loop z', rising from the bottom of the said mortise-or other equivalent fastening, which will allow the bed to rise and fall freely, and prevent it from being drawn lengthwise from the same. A sliding plate C, having grooves in its edges, is supported by the ledges or ways a., a, which are secured to the side beams of the frame, and is reciprocated by the pitinan B, connected to a crank on the shaft A. The plate C, passes immediately below the lower edges of the sides of the shingle-box E. A recess is cut out of the front end of the plate C, of a little greater width, and somewhat greater length, than the elastic bed F. rl`he inner edges of the legs p, p, formed by cutting the recess out of the plate C, are on a line with the inner sides of the box E; and the end le, of the said plate C, between the legs p, p,

when the plate is drawn back to its extreme limit of motion-is in a line with the inner side of the rear end of the said box. Consequently, the front end of the bed F, will be forced by its springs a short distance up between the legs p, p. The rear end of the said bed F, will be prevented from being forced up between the legs p, Z9, by the projection of the lug 7i, beyond the end 7c, of the sliding plate C, when the said plate is drawn back to its extreme limit of motion.

Tapering patterns 0,' c, corresponding with the size and shape of the longitudinal section of a shingle, are formed on the upper a'nd lower sides of the inner edges of the aforesaid legs p, p, which project forward from the sliding platform C. The said shingle patterns c, o, are embraced by two knives e, e, placed opposite to each other, and secured to elastic arms f, f, which are secured, to and project from the cross piece H, of the frame. The said knives e, e, are secured to their arms f, f, by means of slots formed in the arms and set screws passing through the same into the knives. A roller 5, is placed between the upper knife e, and the front end of the box E, to bear upon the shingles while being operated upon, and to form the mouth piece to the said knife.

rlhe front end of the bed F, bears upward against the shingles just in front of the lower knife e, and forms t-he mouth piece to the said knife. The opening between the lower edge of the front end of the shingle box, and the elastic bed F, must be of sufficient depth to allow the thickest shingle to pass through it to the roller b; but not of sulicient depth to allow the passage at the same time of two thin shingles through the same.

The thickness of the end 7c, of the sliding plate C, should be less than the thinnest shingle, so that as it is forced forward, it will never act upon more than one shingle at a time.

The operat-ion of my machine is as follows: Shingles having been placed in the box E, and motion imparted to the driving shaft A, the bottom shingle in the said box, will be carried forward by the end 7c, of the sliding plate C, and brought in contact with the knives e,- e; the said knives being governed in their positions by the patterns c, c, and the inward pressure exerted by their elastic arms f, f, will shave the shingle, as it is pressed against them, to the proper tapering'shape, and discharge lthe same at the open space between the knife arms f, f. Should a riven shinglebe too thin to be acted upon by the knives at its thickest4 part, in shingle machines of the usual construction, the upward pressure of the bed F, in my machine, will in all cases'insure a perfect finish to the upper side of a shingle by bringing the same into close Contact with the roller b, andthe upper knife.

Having thus fully described my improved machine for dressing riven shingles, what

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