US692913A

US692913A - Valve-gearing.

Info

Publication number: US692913A
Application number: US7084301A
Authority: US
Inventors: William N Rumely
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-08-05
Filing date: 1901-08-05
Publication date: 1902-02-11
Anticipated expiration: 1919-02-11

Description

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VILIIAM N. RUMELY, OF LAPORTE, INDIANA.

VALVE-GEARING.

SPECIFICATION forming part of Letters Patent No. 692,913, dated -February 1 1, 1902.

Application lecl August 5, 1901. Serial No. 70,848. (No model.)

To all whom, it may concern.:

Be it known that I, WILLIAM N. RUMELY, a citizen of the United States, residing at Laporte, Laporte county, Indiana, (post-office address Laporte, Indiana,) have invented certain new and useful Improvements in Valve- Geariug, of which the following is a specilication.

This invention relates to improvements in that type of reversing valve-gearing in which the eccentric is on a counter-shaft geared tothe engine-shaft, the reversal of the engine motion being effected by adjusting the counter-shaft in a planetary path relative to the engine-shaft. (See, for instance, Marshs patent, No. 236,052, of December 2S, 1880.)r

My improvements will be readily Linderstood from the following description, taken in connection withl the accompanying drawings, in which- Figure l is a side elevation of the valvegear embodying my improvements and arranged for a quarter-crank double engine; Fig. 2, a plan of the same; Fig. 3, a perspective view of the same, and Fig. 4 a horizontal central section. Eccentric-rods and engine-cranks appear only in Fig. 2, and adjusting apparatus appears only in Fig. 1.

In the drawings,1 indicates the en gine-shaft; 2, the spur-gear fast thereon; 3, a short counter-shaft parallel with the engineshaft; 4, a spur-gear fast on the counter-shaft and having the same diameter as and meshing with gear 2; 5, housing straddling and partially inclosing the gears and having bearings engaging the engine-shaft and the counter-shaft at each side of the gears thereon, this housing being adapted for angular adj nsting motion upon the engine-shaft as a pivot; 6, caps for those journal-boxes of the housing which engage the engine-shaft; 7, caps for those journal-boxes of the housing which engage the counter-shaft; S, eccentric wrists projecting from 'the opposite ends of the countershaft and having an angular relationship to each other in correspondence with the angular relationship of the cranks of the double engine in connection withwhich the device is to be employed. Thus in a double engine with cranks set quartering the eccentrics S lwill be set quartering.

9 indicates thc eccentric-rods engaging cccentric S and adapted to go thence into action with the respective engine-valves; l0,a curved standard disposed concentrically to the engine-shaft in the central vertical plane of the housing 5, this standard to have rigid support; 1 1, projections from the caps 7 toward bracket 10, these projections meetingand being bolted together and presenting a notch neatly fitting the standard l0; 12, an arm rigidly projecting from housing 5; 13, a device for angularly adjusting the housing, the same being illustrated as an ordinary detent-sector and hand-lever; li, a link connecting the adjusting device 13 with the arm 12; 15, the center crank of the double engine, and 16 the second crank of the engine, assumed as having quartering relationship with crank 15, gear 2 and housing 5 engaging the engineshaft at a point between cranks 15and 16."

The effect upon the valves due to adjustment of the counter-shaft 3 angularly with reference to the engine-shaft will at once be obvious to those who are familiar with this general type of reversing-gear. In the present case the angular adjustment of a single housing simultaneously eects the proper adjustnient of the two valves of a double engine. The form of the housing 5 straddling the gear on the engine-shaft and having a bearing on the shaft at each side of the gear gives superior stability to the structure in its several positions of adjustment. The form of the housing straddling lthe gear'on the countershaft also serves in giving superior and continued stability t-o the motion parts. The engagement of the housing-jaws 1l with the housing lO also serves in maintaining the proper relationship of parts in the several positions of adjustment. The housing 10 is illustrated as having adjustable stop-screws to determine the limits of the adjustment of the housing, these being a mere refinement.

The construction illustrated is of special advantage in connection with double-crank engines, the housing being readily applied to and detached from that portion ot (the shaft lying between cranks, thus requiring that only the spur-gear 2 need be secured upon the shaft before the second crankis secured there to. The provision ofthe housing with bearing-caps 6 and 7 provides for convenient assembling of the parts and for the taking up IOO of lost 1notion,so as to secure a continued proper operation of the valves so far as the relative movements of the crank-shaft and the counter-shaft are concerned.

I claim as my inventionl. In a valve-gear, the combination, substantially as set forth,'of an engine-shaft, a spur-gear fast thereon, an angularly-adjustable housing having its axis of oscillation coincident with that of the engine-shaft and having bearings of oscillation at each side of said spur-gear, a counter-shaft journaled in the housing parallel with the engineshaft,an eccentric carried by the counter-shaft, a spurgear on the counter-shaft and engaging the first-mentioned spur-gear, and means for angularly adjusting the housing.

2. In a valve-gear, the combination, substantially as set forth, of an engine-shaft, a spur-gear fast thereon, an angularly-adjustable housing having its axis of oscillation coincident with that of the eugine-shaftand having bearings of oscillation at each side of said spur-gear, a counter-shaft journaled in the housing parallel with the engine-shaft, apair of eccentrics carried by the counter-shaft, a

spur-gear on the counter-shaft and engagingthe first-mentioned spur-gear, and means for angularly adjusting the housing.

3. In a valve-gear, the combination, substantially as set forth, of an engine-shaft, a spur-gear fast thereon, an angularly-adjustable housing having its axis of oscillation coincident with that of the engine-shaft and having bearings of oscillation 'at each side of said spur-gear, a counter-shaft journaled in the housing parallel with the engine-shaft, said housing having a pair of journal-bearings engaging said counter-shaft, an eccentric carried by the counter-shaft, a spur-gear on the counter-shaft and engaging the first-mentioned spur-gear and disposed between the two counter-shaft bearings of the housing, and means for angularly adjusting the housing.

4. In. a valve-gear, the combination, substantially as set forth, of an engine-shaft, a spur-gear fast thereon, an angularly-adjustable housing having its axis of oscillation coincident with the axis of the engine-shaft, a counter-.shaft journaled in the housing parallel with the engine-shaft, an eccentric carried by the counter-shaft, a spur-gear fast on the counter-shaft and engaging the first-mentioned spur-gear, a curved standard rigidly supported concentric With the engine-shaft, jaws projecting from the housing and engag ing the sides of said standard, and means for angularly adjusting the housing.

5. In a valve-gear, the combination, substantially-as set forth, of an engine-shaft, a spur-gear fast thereon, a counter-shaft parallel with the engine-shaft, a spur-gear on the counter-,shaft engaging the first-mentioned spur-gear, an eccentric carried by the counter-shaft, an angularly-adjustable housing having half-boxes engaging the counter-shaft and engine-shaft upon opposite sides of the spur-gears thereon, journal-box caps engaging said half-boxes, and means for angularly adjusting said housing. Y

6. In a valve-gear, the combination, substantially as set forth, of an engine-shaft, a spur-gear fast thereon, a counter-shaft parallel with the engine-shaft, a spur-gear on the counter-shaft engaging the first-mentioned spur-gear, an eccentric carried by the counter-shaft, an angularlyadjustable housing having half-boxes engaging the counter-shaft and engine-shaft upon opposite sides of the spur-gears thereon, journal-box caps engaging half-boxes of the housing at the engineshaft, journal-box caps engaging the halfboXes of the housing at the counter-,shaft and having outward extensions bolted together and formed with a notch, a rigid curved standard concentric with the engine-shaft and engaging said notch, and means for angularly adjusting said housing.

7. In a valve-gear, the combination, substantially as set forth, of an engine-shaft, a counter-shaf t parallel therewith, an eccentric carried by the counter-shaft, intermembering spur-gears upon the engine-shaft and counter-shaft, a housing having journal-bearings engaging the engine-shaft and counter-shaft on opposite sides of the gears thereon and having a box inclosing the communicating portions of said gears, and means for angularly adjusting said housing.

VILLIAM N. RUMELY.

Witnesses:

H. S. WASSER, GEO. H. WARDNER.