US1314851A - Valve-grinder - Google Patents

Description

W. C. BROWN.

VALVE GRINDER. APFLICATION FILED OCT-20l I911. 1,314,85 1. Patented Sept. 2, 1919.

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4 i L9 3 s 10 a I I .1 13 .J 2 1 WILLIAM 0. BROWN, OF NILES, OHIO.

VALVE-GRINDER.

Specification of Letters Patent.

Patented se ta, 1919.

Application filed October 20, 1917. Serial No. 197,790.

To all whom it may concern.-

- Be-it known that I, WILLIAM 0. BROWN, a citizen of the United States of America, residing at Niles, in the county of Trumbull and State of Ohio, have invented certain new and useful Improvements in Valve- Grinders, of which the following is a specification.

My present invention relates to improvements invalve-grinders for use on. internal combustion engines and motors in general; and specific reference is hereby made to Letters Patent No. 1,150,874, of Aug. 24, 1915, issued to Morris, et aL, of which I am the sole licensee (of record), and I herein claim nothing protected by said patent.

My improvement consists of elements to be easily assembled and, temporarily, operatively located in position to grind the valves of such engines when built with either removable caps or heads; and the objects of my invention are, first, so to do; second to greatly reduce the number of working parts and the cost thereof; third to shorten the time required to grind the valves; and, fourth, to enable the operator to grind one or a plurality at a single operation, as required.

I accomplish those objects by the mecha nism described in the followin speeification, clearly expressed in the c aims, and illustrated 1n the drawings, in which- Figure 1 shows in elevation a portion of the housing of an explosive engine, in part broken away, with a cylinder and a valve and one form of my invention attached.

Fig. 2 is a top plan view of the engine with head H removed.

Fig. 3 is a plan .of a bar and an elevation of a rivet, as used in my invention, and

Fig. 4 shows an element described.

Fig. 5 illustrates a modification, and Fig. 6 shows my invention as used in series.

Like characters refer to similar parts throughout the several views.

Most explosive or combustion engines have a head H, within which are located cylinders O, with piston heads and piston rods operatively connected with a crank shaft by pitmen; and in Fig. 1 I have shown one which has a cover or top, T, also shown in Fig. 2; and to which top is bolted a removable head, H, which covers the as chamber G, the cylinders and certain ot er of the working elements and wirings, and into which are screwed the spark plugs 1,1.

hole 7, through it (Fig. 4); and a horizontalbase 8 having a slot 9.

The head H having been removed the sup- 7 port 6 is fastened to the top, T, by a screw 4 through the slot 9 and hole 3 after the stem 10 (Fig. 1) has been passed through hole 7 of the arm 6".

Thereupon the screw driver edge 11 at the base of the stem 10 fits into a kerf 12, in the valve head 5.

A handle 14 having a square hole 15, is then placed on the end of the stem 10 and by means of it the operator can oscillate the valve head 5 in the valve seat 2, with or without rouge or the like, until that valve is true.

In order to save the operator from the necessity of manually retaining the grinding parts in contiguous relation, I introduce a spiral spring, S, coiled about the stem 10, and below an annular enlargement 16 thereon, which threads into the hole 7 (Figs. 1 and 4), which spring serves to press the grinding parts together evenly.

To grind the valve 2 the support 6 may be located and held by the screw 4 through the hole 13; and then turned to grind the next valve, comprising seat 2 and a corresponding valve head 5, valves 2" and 2 etc.

When it is desired to be grinding more than one valve at a time I provide a bar 17 Figs. 3 and 6 with a plurality of holes, 18, 18, and loose rivets 20. A series of supports 6, 6, etc., having been located with a series of edges 11, 11, fitting into kerfs 12', 12, of several valves, each support being equipped with its handle 14, 14, etc., the bar 17 is laid on top of them all and rivets 20, 20, dropped through the holes 18, 18 which correspond to the several holes 19, 19 of the handles; whereupon a forward and backward movement given to the bar 17, oscillates all of the grlnding valve heads in their respective valve seats.

On engines which do not have tops- T,

a the valve heads are exposed and covered by a removable threaded cap [similar to the plug 21 shown in F ig. 5, but usually slightly v larger in' diameter than the threaded holes .7 infthe arm 6. a

i To grind those I provide a special plug 21:01 the right size and thread, .as shown 7' equipped with stem 10,-thread 16, a spring ls andzan-edge 11, which temporarily replaces the plug that comeswith the engine, and is reciprocated oroscillated by the 1 On. this modification a plurality of plugs 1(21) are; used and their respective handles 1 let are operated conjointly and sirnultasired to a time: 7

; l' clai-m I purpose set-forth, V

In testlm ony whereof v I afiix my signature 7 1."Thearcornbination of a plurality of valve grinders of the kind described,' hav.-V

111g individual oscillatory handles with supplemental holes therethroughywith an operatingbar having a corresponding-plurality of holes and a plurality of removable locking elements fitting said holes, for the purpose set forth.

'2. In a device of the kind described 'for grinding :valves of combustion engines and having operatinghandles with holes there- 7 through; a removable element'consistingvof a bar with a plurality of'aprop'erlyz spaced ,holeswtherethrough and removable rivets V fitting said holes in'saidele'ment. and han-' dles, Ias shown and idescribed land: {for the in the presence of two witnesses.

, ILLIA BROWN. 7 V Witnesses- 7 .PLBETHUNE', 1 a

V M. PUERNER."

I 7 Copies ;.of-this' patent may 15 obtained'for five-cents ejachybyiaddressingithei conlimissioner of i atents,

Washington, D. G.

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