US247426A - Engine-governor - Google Patents
Engine-governor Download PDFInfo
- Publication number
- US247426A US247426A US247426DA US247426A US 247426 A US247426 A US 247426A US 247426D A US247426D A US 247426DA US 247426 A US247426 A US 247426A
- Authority
- US
- United States
- Prior art keywords
- governor
- lever
- engine
- speed
- balls
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005096 rolling process Methods 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 2
- 230000003247 decreasing Effects 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
- G05D13/08—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover without auxiliary power
- G05D13/10—Centrifugal governors with fly-weights
Definitions
- My invention is applicable to allgovernors employing fly-balls for movement of the valve, and has for its object to secure more perfect; uniformity in the speed of engines with which such governors are employed.
- My invention consists in a curved lever carryingarolling weigh t,combin'ed with the valvestem of the governor in such manner that the weight is shifted nearer to the lever-fulcrum as the speed decreases, and vice versa, thereby increasing and decreasing the resistance of the governor to the speed.
- Figure l is a side elevation, partially sectional, of a governor containing my improvement
- Fig.2 is a cross-section of the lever.
- A is the stand of the governor, in which the valve-stem a is fitted to slide vertically.
- B B are the balls, hung by arms I) to the revolving upper part of the stand, and connected to valve-stem a, as usual.
- the bottom plate of stand A is fixed a post, 0, in the slot-ted upper end of whichis pivoted a curved arm or lever, O, that has its shorterarm extended beneath alu g, c, on valvestem a.
- the lever 0 curves upward from post 0, and is grooved lengthwise or formed troughshaped, as shown in Fig. 2, to receive the ball f.
- the lever is also provided with guide-rods g at each side, which prevent the ball from falling out.
- the post 0 passes through an aperture in the bottom plate of the stand, and is clamped by a nut at each side of the plate, so that it may be raised and lowered as desired to vary the inclination of lcverO.
- the moving weight f may be fitted to slide instead of rolling, as shown.
Description
(N0 Model.) I
r W. SNEDDON.
ENGINE GOVERNOR. I No. 247,426. Patented Sept. 20,1881.
WITNESSES: INVENTOR:
ATTORNEYS.
UNITE STATES PATENT OFFICE.
WILLIAM SNEDDON, OF BURRTON, KANSAS.
ENGlNE-GOVERNO R.
SPECIFICATION forming part of Letters Patent No. 247,426, dated September 20, 1881. Application filed February 4, 1881. (No model.)
To all whom it may concern Be it known that I, WILLIAM SNEnnoN, of Burrton, in the county of Harvey and State of Kansas, have invented a new and useful Improvement in EngineGovernors, of which the ibllowing is a Specification.
My invention is applicable to allgovernors employing fly-balls for movement of the valve, and has for its object to secure more perfect; uniformity in the speed of engines with which such governors are employed.
My invention consists in a curved lever carryingarolling weigh t,combin'ed with the valvestem of the governor in such manner that the weight is shifted nearer to the lever-fulcrum as the speed decreases, and vice versa, thereby increasing and decreasing the resistance of the governor to the speed.
In the accompanying drawings, Figure l is a side elevation, partially sectional, of a governor containing my improvement, and Fig.2 is a cross-section of the lever.
Similar letters of reference indicate corresponding parts.
A is the stand of the governor, in which the valve-stem a is fitted to slide vertically.
B B are the balls, hung by arms I) to the revolving upper part of the stand, and connected to valve-stem a, as usual.
0n the bottom plate of stand Ais fixed a post, 0, in the slot-ted upper end of whichis pivoted a curved arm or lever, O, that has its shorterarm extended beneath alu g, c, on valvestem a. The lever 0 curves upward from post 0, and is grooved lengthwise or formed troughshaped, as shown in Fig. 2, to receive the ball f. The lever is also provided with guide-rods g at each side, which prevent the ball from falling out. The post 0 passes through an aperture in the bottom plate of the stand, and is clamped by a nut at each side of the plate, so that it may be raised and lowered as desired to vary the inclination of lcverO.
In operation, the speed being normal and valve-stem a moved down by rise of balls B, the lever O is correspondingly raised at its outer end and ball f rolls toward post a. If the speed is checked from any cause, the fall of balls B causes the rolling weight f to roll outward; then as speed increases the weight freturns inward. Thus a tension, increasing and decreasingas required, is kepton the valvestem 0 and sudden movements of the stem are prevented.
The moving weight fmay be fitted to slide instead of rolling, as shown.
I am aware that itis not new to use a weight suspended from a lever by an arm attached to a friction-roll running in the slot of a vibratory lever, or to use mercury running in a cavity of the vibratory lever; but
What I claim as new is-- 1. In a steam-engine governor, the combination, with the lever G, ofa ball,f, arranged to run loosely in a groove thereof, as and for the purpose specified.
2. In an engine-governor, the grooved lever 0, ball f, running loosely in the groove, post a, sliding valve-stem a, and fly-balls B, combined for operation substantially as shown and described.
WILLIAM SNEDDON.
Witnesses J AMES M. TUPPER, W. O. PAsLEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US247426A true US247426A (en) | 1881-09-20 |
Family
ID=2316750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US247426D Expired - Lifetime US247426A (en) | Engine-governor |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US247426A (en) |
-
0
- US US247426D patent/US247426A/en not_active Expired - Lifetime
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