US186116A

US186116A - Improvement in governors

Info

Publication number: US186116A
Authority: US
Publication date: 1877-01-09
Anticipated expiration: 1894-01-09

Description

W. N." COSGROVE & T. MEE.

GOVERNOR.

Patented Jan.9,1877.

N.PETERS. PHOTO-UTHOGRAFHER, WASHINGTON, D C

UNITE STATES PATENT OFFICE WILLIAM .N. OOSGROVE AND THOMAS MEE, OF FABIBAULT, MINNESOTA.

IMPROVEMENT IN GOVERNORS.

Specification forming part of Letters Patent No. [86,l 16, dated January 9, 1877; application filed February 14, 1876.

To all whom it may concern:

Be it known that we, WILLIAM N. GOS- GROVE and THOMAS MEE, of Faribault, in

the county of Rice and State of Minnesota,

specification, reference being had to the ac companying drawings.

The object of our invention is to furnish an automatic cut-off, whereby steam can be used in the cylinder of a steam-engine with great economy by cutting off steam at any point in the cylinder where the regular motion of the engine requires it.

In the accompanying drawings, Figure 1 is a ftsectional or end view of an automatic cut- 0 A is a friction-wheel attached to screw B, which is located on flange I by two bearings, one at the point of the screw and one at the verge of flange I. Screw B is intended to raise and lower rack O, which is held into place by flange friction-wheel G, and meshes into spur-gear D on main shaft H. Spur'gear D is a part of a long sleeve or hub of eccentric F. Eccentric F is intended to work the cut-off valve. J represents the face of one of the flanges which works friction-wheel A. The face of the flanges is made of a softer material than friction-wheel A by cutting a groove in the wheel J and filling it with leather or other suitable material 23. Eccentric E is stationary on shaft H, and works the inside valve.

Fig. 2 represents a longitudinal view of an automatic cut-off on a section of main shaft H. Flanges J are bolted together at a sufficient distance apart to allow friction-wheel A to revolve between them. The verge of flanges J is fastened to a point onthe bed of the engine, and not allowed to revolve with the main shaft.

Flange I carries friction-wheel A, screw B, rack O, and friction-roller G, and is stationary on main shaft H.

When the speed of the engine is increased or decreased the governor acts at once by moving flanges J horizontally on main shaft, which is to set friction-wheel A in motion, and screw B to raise or lower rack C, geared to the hub of eccentric F, which will set it immediately in the required position.

Steam is always admitted into the cylinder at boiler-pressure, and is cut off at a point necessary to do the work.

When the engine is running at its regular speed friction-wheel A is allowed to revolve between flanges J without any interference, and holds eccentric F unchanged. When the governorweights drop and move flanges J toward the eccentrics screw B moves rack and gives the engine more steam. When the governor-weights are thrown out, and draw flanges back, the motion of friction-Wheel A is reversed and motion of engine retarded.

This cut-off can be worked by any steamgovernor.

What we claim is- In combination with the eccentrics E F, the latter being movable on main shaft H of the parallel beveled flanges J, the angular rack v(l, the screw-shaft B, carrying the beveled friction-wheel A, the segment gear-wheel D, and a governor mechanism, substantially as specified.

WILLIAM N. OOSGROVE. THOS. MEE. Witnesses:

Jno. S. JORDAN, E. E. SMITH.