US535949A - Grinding-machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

H. A. HAYWARD.

, GRINDING MACHINE. No. 535,949. Patented Mar. 19, 1895..

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donderry, in the county of Windham and State HORACE A. HAYWARD, OF LONDONDERRY, VERMONT.

MACHINE.

SPECIFICATION forming part oi Letters Patent No. 535,949, dated March 19, 1895.

Application filed October 22, 1894.

To aZZ whom it may concern:

Be it known that I, HORACE A. HAYWARD, a citizen of the United States, residing at Lonof Vermont, have invented certain new and useful Improvements in Grinding-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to grinding machines for use in connection with mowing machine sections or sickles, guards, and other similar articles; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings: Figure 1 is aside view of the grinding machine. Fig. 2 is a front view of the grinding machine.

A is a stationary support which may conveniently be formed of wood.

B is a bracket secured to the support A. The .top portion of the bracket B rests on the support A and is provided with a split boss 19 having lugs b, one on each side of its split or groove.

G is a vertically-adjustable and revoluble disk provided with a stem 0 passing through the said boss 19; and O is a clamping screw, engaging with the lugs b and provided with an operating handle or lever c, for securing the said disk in any desired position.

The rear portion of the bracket B is provided with a vertical guide D.

E is a bracket provided with a vertical slide e which is adjustable in the guide D and is provided with a vertical slot 6.

F is a screw which passes through the slot e and screws into the bracket B, so that the bracket E may be clamped to it after its vertical position has been adjusted. A horizontal circular disk E is provided at the top of the bracket E.

G is a standard having a base g. This base has acircular recess g on its under side and is j ournaled upon the disk E. A screw H passes through a hole in the disk E and screws into the base g so that the standard is clamped to the bracket B when the said screw is tightened. A toothed wheel I is journaled on a engage the point of the guard.

Serial No. 526,587. (ITomodeLl sition is adjusted by raising or lowering the bracket E; .and it is set to various angles by turning the standard upon the disk E.

K is a table which is secured to the disk 0 hereinbefore described, and k are removable rests-for the cutter bar. These rests have stems k which are dropped into sockets m let into the table.

A support N is provided for grinding guards, as shown in the drawings. The support N is removable and is provided with a stem n which is journaled in the socket 'n' which is let into the table. I

O is a revoluble bar which is free to slide horizontally in the lugs o of the support N. The bar 0 has a stationary vertical arm p at one end which is provided with a collar p. A slidable arm q is clamped on the other end of the bar 0 by a screw q, and the upper end of the arm q is provided with a conicalrecess s. The guard is slipped over the end of the arm 19 and rests on the collar 19, and the arm q is moved so as to cause the recess 8 to The arm q is then secured to the bar 0. The guard is grasped by thehand and is slid back and forth and is pressed against the grinding wheel.

The pivotal and vertical adj ustability of the standard and table permits the grinding wheel and the articles to be ground to be moved about into a great many positions with respect to each other, and permits the machine to be used for grinding a large variety of articles.

What I claim is- 1. In a grinding machine, the combination, with the grinding wheel, and means for supporting and revolving it; of the verticallyadjustable disk 0 and the table secured to it; and a support fora guard provided with lugs and with a stem journaled in the table, and a horizontally-slidable bar journaledin the said disk at its top; the standard for supporting lugs and having astationary arm at one end the grinding wheel and its driving mechanprovided with a collar, and a slidable arm at ism, provided with a recessed base revoluble I5 the other end provided with a recess, substanupon the last said disk; and clamping devices 5 tially as set forth. for securing all the said adjustable parts, sub- 2. In a grinding machine, the combination, 1 stantially as set forth.

with the bracket B provided with a vertical In testimony whereof I aflix my signature guide at its rear; of the vertically-adjustable in presence of two witnesses.

disk provided with a stem journaied in aboss HORACE A. HAY WARD. 10 at the front of the said bracket; a vertically- Witnesses:

adjustable bracket provided with a slide en- F. N. WESTCOTT,

gaging with the said guide, and a horizontal B. SPARROW.

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