US247340A

US247340A - pipee

Info

Publication number: US247340A
Authority: US
Publication date: 1881-09-20
Anticipated expiration: 1898-09-20

Description

(No Model.)

A'. GURNEY & R. .H. PIPER.

LEATHER CHAMPERING MAGHINE.

No. 247,340. Patented Sept.-20, 1881.

WITNESSES: mymon:

N. PETERS. Pholo-hlhognphcn Wnxhmgion. nv c UNITED STATES PATENT OFFICE.

ALFRED GURNEY AND ROBERT H. PIPER, OF NEWBURYPORT, MASS.

LEATHER-CHAMFERING MACHINE.

SPECIFICATION forming part of Letters Patent No. 247,340, dated September 20, 1881.

Application filed J une 24, 1881. (No model.)

To all whom it may concern Be it known that we, ALFRED GURNEY and ROBERT H. PIPER, both of N ewbury port, in the county of Essex and State of Massachusetts, haveinvented certain useful Improvements in Leather-Ohainl'ering Machines, of which the following is a specification.

Figure 1 is a plan view of our improvement. Fig. 2 is a side elevation of the same. Fig. 3 is a sectional side elevation of the same, taken through the line w m, Fig. 1. Fig. 4 is a sectional end elevation of the same, taken through the line y y, Fig. 3.

The object of our invention is to facilitate the operation of ohaml'ering the edges of shoesoles and promote accuracy in the work.

The invention consists in a leather-chainferin g machine constructed of a stock faced with metal plates, the knife secured in place adjustably by set-screws, the adjustable guard for holding the leather down while being cut,

' and the adjustable gage for regulating the depth of the chamfer, as will be hereinafter fully described.

1n the drawings similar letters of reference indicate corresponding parts.

Arepresents the stock of the machine, which is made of wood or other suitable material, and is faced upon its four sides with metal plates B. The top plate B should be made of steel to prevent it from being worn uneven, and thus causing imperfect work.

0 is the knife, which passes through a slot, 1), in the stock A. The slot D is made wide in its lower part, and tapers to the thickness of the knife U at its upper part, where it passes through the top plate B, as shown in Fig. 3, so that the said knife 0 can be adjusted to give any desired inclination to the chamfer or bevel of the sole-edge. The inclination of the knife 0 is regulated by the set-screws E, which pass through the upper and lower sides of the stock knife forward as it wears by use and sharpening, and thus allows a knife to be used longer than would otherwise be possible.

The leather or sole to be operated upon is held down upon the plate B while being cut by the spring G, which is secured at its rear end to the stock Abya clamping-screw, H, as shown in Figs. 1, 2, and 3. The rear end of the spring G is slotted longitudinally to receive the screw H, so that it can be adjusted forward or rearward, as may be required. The inner edge of the spring G is cutaway to form a space to receive the gage I, the shank of whichis extended laterally, and is bent downward at right angles to overlap the forward side of the stock A, where it is secured to the said stock by a screw, J. The downwardlyprojecting shank of the gage I is slotted to receive the fastening-screw J, sothat the said gage can be set back, as shownin Fig. 3,when it is desired to chamfer the sole to a feather edge, and set forward, as shown in Fig. 2, when it is desired to chamfer the sole to a square or mock-welt edge.

With this construction the operator can chainl'er the soles quickly and to any desired depth without any danger of nicking the edges of the soles, and thus spoiling them,

Having thus described our invention, we claim as new and desire to secure by Letters Patent 1. A leather-chainferin g machine constructed, substantially asherein shown and described, of the stock A, faced with metal plates B, the knife 0, the set-screws E F, that secure the said knife adjustably in place, the spring-guard G, and the adjustable gage I, as set forth.

2. In a leather-chamferin g machine, the combination, with the stock A, the adjustable knife 0, and the adjustable guard G, of the adjustable gage I, substantially as herein shown and described, whereby the sole can be chamfered to a feather edge or a square edge, as set forth.

ALFRED GURNEY. ROBERT H. PIPER. Witnesses:

DAVID J. MERRILL, HUGH WALKER.