US1135505A - Valve-grinding machine. - Google Patents

Description

F E, DEVSNF,

VALVE amwomc MACHINE,

APPLICATION HLLD JULY 6, H314,

Patented Apr. 13, 1913 13 SEBETS SHLEZ l FNVENTQR F O RREST DEE ENE WITNESSES a a I 7 By 4: d H i S ATTGR N EV F. E. UEHNE.

VALVE GRENDiNG MACHINE APPHCATiON FILED Hum. :924.

1,135,505, Patented Apr.13,1915.

3 SEEETS- QHEET 2.

a i I KAHTNESDSEQ) INVENTOFI v AQfZf/ZTAA:04,04. FURREST FLINT/NE: w. 5%: av /Ma QimV ZJJ Hi8 ATTOR N D To all whom it may] concern:

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FORREST E. DEVINE, OF MADISON, WISCONSIN.

VALVE-GRINDING MACHINE.

Application filled July 6, 1914. Serial No. 849,368.

Be it known that I, FORREST E. Davina, a citizen of the United States, residing at Madison, in the county of Dane and State of Wisconsin, have invented certain new and useful Improvements in ,Valve-Grinding Machines, of which the following is a specification.

My invention relates to machines for grinding the valves in automobile engines one or more at the same time; and the objects of my'invention are, first, to provide an adjustable clamping device adapted to attach to the valve chamber or cylinders; second, to afford facilities for readily attaching to or removing from the top of said clamping device a frame, said frame being provided with a'plurality of pinions meshing with a rack and a crank handle and reciprocating mechanism for operating the pinions; third, to have the pinions disposed in bearings adjustable independently of each other; and fourth, to drive vertical shafts slidably disposed through the center of the said pinions. I attain these objects by the mechanism shown in the accompanying drawings in which Figure 1,"is a plan of my device attached to an engine, ig. 2, is a front elevation attached to an engine, the valve chest being shown in section, Fig. 3,, is a front elevation of the clamping bracket and strap, Figc h, is a sideelevation of the same, and Fig.5, s,-

a section on line A-;B, Fig. 1.

F imilar numerals. refer to similar parts throughout the several views.

' The brackets 1, with the in and lugs 3, secured together by the bar 4, c nstitute the clamping member 0 f my device. The lugs 3, are threaded to receive the set screws 21. The top of the brackets 1, are

flat and in horizontal alinement with each rthcr. A distance from the front of said brackets 11, are disposed integral lugs 22, threaded to receive the adjusting screws 20. T he part designated as the frame comprises a front bar 5, a rear flanged bar 6, end blocks 23, and bracket 16. The front and rear bars are secured to the end blocks by screws and the bracket 16, is secured to the fnont bar by rivets. Approximate the longitudinal center of bracket '16, is disposed the bearing 24. Jeurnaled in said bearing 18 shaft 14. Jand mounted upon the inner end of said shaft is crank disk 12. Adjacent the outer end of said shaft 14, is disposed crank Specification of Letters Patent.

valves. at its left end and forms a bearing for the tegral ledges 2,

Patented Apr. 13, 1915.

handle 15, and a distance from the center of the crank disk l2,'upon its inner face is rigidly disposed crank pin 13, which extends through the center of slide blodk 11,

with thepinions 8, which are provided with a downwardly projecting hub, that is journaled in the blocks 9, Which" are slidably disposed-between the front and rear rails of the frame and spaced and secured in the desired position by the screws 19. Said screws are revolubly disposed through the brackets 18, which are rigidly" attached to the front side ofthe front bar of the frame. The pinions 8, aforesaid are bored and key seated to receive the driving spindles 25 and 26. Said spindles being provided with keys 9, distance downward from their upper ends to engage the key seats in the pinions, thereby cooperating therewith. Being slidably disposed, vertically through the pinions, the

the valves for grinding. The lower ends.

of the spindles are constructed bifurcated or with screw driver points to fit the various The bracket 16, is turned backward bar 17.

Having clamped my device to the chest of an engine and adplsted the pinions in vertical alinement with the valves and the spindles in connection with the valves, it is obvious that byturning the crank 15, a re-.

ciprocating movement will be produced in the rack and a rotative reciprocating movement set up in the valves necessary to the proper grinding of them to their seats, and that one or more valves can be ground simultaneously.

Having thus described my invention What I claim as new is: I

In a-device of the kind described, two brackets extending downward and hooking under the chest of an engineyledges on the inner faces of said brackets resting upon the top edges of said chest, set screws through the bottom lugs, a bar secured to the front side of said brackets fastening the two together, a frame adjustably secured to the 2 1,1sa,aoa

top ofrlzhesaidbrackets, a bracket securedcarrying vertical spindles, said -spihdles 15 to the front and left end of said frame, a adapted to engage the valves of an autobearing through said bracket, a shaft jourmobile engine, means for adjusting said pinnaled in said bearing, a crank handle ations longitudinally of a frame, means for tached to the outer end of said shaft, a. adjustingthe frame laterally on the brackcrank disk attached to the inner end of said ets, weights attached to the top of the afore- 20 shaft, ,a crank p,i in said crank disk, a slidsaidspindles, as described and set forth. 7 ing block revolub y disposed onsaid crank In testimony whereof I afiix niy signature pin, said block slidably disposed'within a in the presenceof two subscribing witnesses. link, said link secured to a bar, the bar slidably disposed in the rear bar of the frame, FORREST a toothed rack secured to the face of said 'Witnesses: sliding bar, said rack in mesh with a plu- CARL N. HILL,

=rality of pinions, said pinions operatively r W. W. FRENCH.

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