US657208A - Marine-engine governor. - Google Patents

Description

No. 657,208. Patented Sept. 4, I900. J. WEIR.

MARINE ENGINE GOVERNOR.

(Application filed May 15, 1900.)

(No Model.)

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MARINE-ENGlNE GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 657,208, dated September 4, 1900. Application filed May 15, i900. Serial No. 16,769. (N0 model.)

To all whom it may concern.-

Be it known that I, JAMES WEIR, a citizen of the United Kingdom of Great Britain and Ireland, residing at 48 Love street, Paisley, county of Renfrew, Scotland, have invented certain new and useful Improvements in Marine-Engine Governors, of which the following is a specification.

This invention relates to marine-engine governors of the class wherein the throttlevalve in the steam-pipe is controlled to prevent racing of the engines by the movement relatively to the ship of a pendulum connected to operate said valve and so weighted as to insure its remaining practically plumb in heavy seas.

The invention has for its object to provide simple and efficient devices for so connecting the pendulum to the throttle-valve that the latter is more or less closed when the vessels stern rises out of the water, while on the greater immersion of the stern and propeller the pendulum is prevented from acting on the throttle-valve. To that end the pendu lum is attached to and suspended from adisk or strap centered upon a stationary disk secured to a carrying-bracket, the disks being adjustable upon each other in order to allow of the pendulum finding its plumb irrespective of the manner of loading the vessel; On the pivoted disk is adj ustably secured a lever connected by a rod or like means to the lever on the throttle-valve spindle, and when the pendulum swings relatively to the vessel as it pitches forward and the stern rises the lever on the pivoted disk acts on the throttlevalve to partially close it.

In the accompanying drawings, which illustrate the invention, Figure 1 is an elevation of my improved marine-engine governor, showing its connection to the throttle-valve in the steam-supply pipe of an engine. Fig. 2 is a vertical section at right angles to Fig. 1, and Figs. 3 and at are details of the governor hereinafter particularly described.

To the pendulum-rod A, carrying an adjustable weight B at its lower end, I secure at the upper end thereof a disk 0, formed with a flange O. This disk 0 is centered upon and arranged to turn freely at its center about a pin D, formed on or secured to one face of a stationary disk D, around the outer periphery of which the flange C of the disk 0 also bears, the stationary disk having also projecting from its other face a stud D by which it is secured to a carrying-bracket E, bolted to any convenient part of the engineroom. The stationary disk D is formed with a slot D carrying two pins F F,whose position may be. adjusted in said slot D so that as the pendulum oscillates the pins come sooner or later into contact with aweb C on the pivoted disk 0 to limit the travel or motion of the disk 0 upon the pin D and outer circumference of the stationary disk D, whereby the complete opening or the entire or partial closing of the throttle-valve G on the steam-supply pipe I is controlled. The pin F is preferably so positioned in the slot D of the stationary disk D as to bear against one side of the Web 0 when the plumb of the pendulum is found, which will naturally vary in relation to its bracket E, according as the ship is loaded heavily or lightly forward. The relative movement between the pendulum and the ship when the latter pitches is transmitted to the throttle-valve G from a lever H, which is centered on the pin D of the stationary disk D and secured to the pivoted disk 0 by a screw-pin H, passing through said lever. This screw-pin H is entered in one of a series of holes 0 (shown particularly at Figs. 1 and 3) in the pivoted disk 0, which holes admit of the lever H being secured in either of the three positions shown in full and dotted lines at Fig. 1 in order to suit the requirements of the connections between the lever H and the spindle G of the throttle-valve G.

Between the bearing-surfaces of the disks 0 and D balls may be inserted to reduce friction, and the pendulum may be jointed athwart ships in order to take the strain off the axis of the pendulum-disk.

Owing to the sensitiveness of the pendulum action and the above-described arrangement of disks for allowing the pendulum to find its plumb, a governor is provided, which speedily and effectually prevents racing of the en= gines.

Suitable springs or buffers may be used in connection with the pendulum, so as to absorb the shock or jar which would occur when the ship itches.

. Having now described the invention, what I claim, and desire to secure by Letters Patent, is-

1. In a marinefiengine governor, the combination with a=stationary disk secured upon a fixed center, of a weighted pendulum attached to a disk or stl'ap fitted to turn about the axis of the stationary disk and having secured upon its axis a lever connected to the throttle-valve spindle of the engine.

2. In a marincengine governor, the combination with a stationary disk secured to a carrying-bracket, of a pivoted disk fitted to turn about the axis of the fixed disk and car rying a weighted pendulum, a slot in the fixed disk, stop-pins adapted to be secured in any I5 position in said slot, a web in the pivoted disk designed to limit the extreme travel of the pivoted disk by contact with said pins, and a lever ad justably secured to the pivoted disk and connected to the throttle-valve spin- 2o dle of the engine.

In witness whereof I have hereunto set my hand in presence of two witnesses.

JAMES VEIR.

Witnesses:

WALLACE FAIRWEATHER, J NO. ARMSTRONG, Jr.

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