US288146A

US288146A - williams

Info

Publication number: US288146A
Authority: US
Publication date: 1883-11-06
Anticipated expiration: 1900-11-06

Description

(N0 Medal.) 3 Sheets$heet 1.

J. WILLIAMS.

REGULATOR FOR ENGINE GOVERNORS. No. 288,146. Patented Nov. 6, 1883.

AME {KILL/4M5 (No Model.) 3 Sheets-Sheet 2.

J. WILLIAMS.

RBGULATORYPOB ENGINE GOVERNORS. N0. 288,146. Patented Nov. 6, 1883.

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(No Model.) 7 3 Sheets-Sheet 3f 7 J. WILLIAMS. REGULATOR FOR BNGIHE GOVBRNTJRS.

Patented Nov. 6, 1883.

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UNITED STATES ATENT Fries,

JAMES WILLIAMS, or men; LANE, NEAR sroonronr, COUNTY or onnsrnn,

ENGLAND.

REGULATOR FOR ENGlNE-GOVERNORS.

SPECIFICATION forming part of Letters Patent No. 288,146, dated November 6, 1883. Application filed October 11. 1883. (No model.)

To all whom it may concern:

Be itknown that I, JAMES \VrLLIAMs, a subject of the Queen of Great Britain, residing at High Lane, near Stockport, in the county of. Chester, England, have invented a new and useful Improvement in Regulators forEngine- Governors, of which the following is a specification.

In Letters Patent of the United States No. 279,097, dated June 5, .1883, and No. 282,908,

dated August 7, 1883, granted to William Knowles for improvements in governors for steam-engines, certain novel means for regulating the speed of such engines are set forth and claimed, a feature common to all being the employment of governor-controlled devices for regulating with nicety the longitudinal movement of the governor-connections through which the throttle-valve or cutoff is operated, said regulating devices receivingrotary motion from the spindle of the main governor, or preferably from that of a supplementary governor, driven like the former from some convenient rotary part of the engine.- The object, common to said Knowless improvements and my present improvement thereon, is to reduce to a minimum variations of speed in steam engines and other fected by'the addition of an element in the the form of a change-gear device, or its mechanical equivalent, for varying the transmission of rotary motion to the aforesaid regulating device, which, furthermore, without materially complicatingthe simple mechanism of the Knowles governors, adapts the same perfectly to the varying requirements of an engine or'of different engines, and at the same time providesfor their accommodation in contracted space.

My invention hereinafter described and claimed consists in three novel combinations of parts, embodied in an improved Knowles governor or governor-regulator, which may be fundamentally of either of the types set forth in said Letters Patent Nos. 279, 097 and 282,908, or a modification of either, with said additional element as the distinguishingfeature. The obj cots peculiar to-said combinations, respectively, are, first, to regulate the speed of the en gine with greater nicety, as aforesaid; second-' ly, to do this with said rotary motion taken from a governor-spindle, whereby one and the same pattern or size of governor or governor attachments is adapted to all sizes of engines; and, thirdly, to accomplish said general result, as I prefer to, with said rotary motion taken from the spindle of a supplementary governor fitted with the requisite attachments for regulating and transmitting saidmotion under its separate control, the throttle-valve or cut-off being connected with the ordinary or main governor, whereby a suitable highspeed governor, for example, may be employed in all cases, as the supplementary governor, so that the same shall be sensitive to the smallest variations of speed, while the device for regulating the longitudinal movement of the governor-connections may be operated more or less slowly, as may be required, to meet the varying circumstances, caused by the engine being heavily loaded or light loaded in proportion to its nominal horse-power.

Three sheets of drawings accompany this specification as part thereof.

Figure 1 of these drawings is a side elevation of a Corliss steam-engine provided with my improved governor-regulator, illustrating a preferred combination and arrangement of parts. 'Fig. 1 represents an enlargement of a portion thereof. Fig. 2 is an elevation of 0 the supplementary governor and the partsv attached thereto, from a point of view at right angles to that of Fig. 1 and on a larger scale. Fig. 2- represents a longitudinal section through the changegear stud of the changegear device, as indicated at a? a", Fig. 2. Fig. 3 isa face view of said supplementary governor and the parts attached thereto on the same scale as Fig. 2, and Fig. 3 is an edge view of its slottedarm.

Like letters of reference indicate corresp onding parts in the several figures.

-ed upon theengine-frame F at convenient points, and both driven directly fromthe engine-shaft S through ordinary connections. Said main governor My, as shown, is connected with the valve-gear of the engine by a divided connecting-rod, 0, having its inner ends fitted to and united by a right-andleft screwnut, d, forming extensible and contractible connections communicating between said governor and the valve or cut-off controlled thereby, asan illustrative and preferred device for regulating the longitudinal movement of said connections and said supplementary governor Sg serves to operate and control a device for transmitting rotary motion to said'regulating device, said nut d being provided with a grooved pulley which is embraced by a light driving-band, 76, from which it receives said rotary motion in one direction orthe other, as required, to assist in raising or lowering the speed, and said transmitting device, as shown, comprises by preference a pair of frictiondisks, f g, on a sliding sleeve,-which embraces 'dial shaft, c, and supported thereby between and rotates with the spindle e of the supplementary governor, a like disk, h, fast on a rasaid disks f so as to be normally out of contact with both, and driven by one or the other and in one direction or the opposite, according to whether the speed is above or below thestandard rate, and, finally, a pulley, j, to coact with said band is.

In all the particulars above set forth my improved governor-regulator issubstantially identical with that described and claimed in said Knowles specification forming part of said Letters Patent No. 279,097. It may instead have as its basis either of the arrangements set forth in said Knowless specification, forming part of said Letters Patent No.

' 282,908, or a modification of either, as before stated; but the former is preferred.

In practice an adjustablestop, 8, Figs. 1, 1, formed by a cage screwed onto the lower end of said nut d, and embracing a pair of jamnutson one of the threaded ends of the rod 0,

a change-gear device, (represented by cg in Fig. 1,) the permanent large gear of which, instead of said shaft 2', carries said pulley j of the transmitting device. 1 Said change-gear device, jointly with said transmitting device, comprises a bracket, b, bolted through its lower end to a divided ring, r,which embraces the cylindrical upper end of the governor-pedestal p, as clearly shown in Fig. 2. This provides for turning the governor attachments so as to present said pulley j toward the governorconnections 0, or an accessible part thereof,

from different relative locations of the supplementary governor. At suitable heights above said ring r said bracket 12 is drilled to receive said shafti of the transmitting device, its outer endbeing provided with a pinion, aa, of, say, twenty teeth, (more, or less,) and at its upper extremity with a stud, 2, upon which said large gear dd of sixty teeth,(more or less,) carrying on its face said pully j, as aforesaid, rotates freely. To the face of the bracket, be tween said shaft and stud, a fiat piece,with an offset therein, as shown in Fig. 3", is attached, to form a slotted arm, 3 having a curved slot in its depressed outer end, concentric with said large gear dd. Said slot is occupied bya flattened portion of the rear end of a flanged stud, 00, (shown detached in Fig. 2%) the protruding extremity of said rear end of this stud 00 being screw-threaded and provided with a nut and washer for fastening the stud in its different positions by clamping its flange or collar tightly against the face of the arm in customary manner. A pinion, cc, of, say, ten teeth,- (more or less,) in constant mesh with said large gear dd, runs loosely on said stud w, and the hub of this pinion, being suitably extended and shouldered, as clearly shown in Fig. 3, receives a change-gear, bb, of any required size-of fifty four teeth in the examplemeshed by said pinion ad when the parts are in working order.

The rotary motion transmitted from the spindle of the supplementary governor'Sg through -IOO said disks-f and h or g and h and shaft i may consequently be readily varied by simply changing saidgear bb or pinion dd for one of I 15 alarger or smaller size, so asto make said within no more space thanwould be required for simple reducing-gear, a relatively-slow speed for the transmitting-pulley j, as com pared with that of the spindle e of the highspeed supplementary governor, beingrequired in all cases.

The governor-regulator for any particular engine is fitted with the appropriate changegear by feeling-the engine with different sizes, until racing? of the engine stops, should it occur.

In the arrangement represented the parts having been appropriately secured in-working order, and" the engine being at work, any variation toward excessive speed causes the balls of the supplementary governor S9 to rise, and

' as the circumstances of the individual engine may demand. Should the tendency be to a rate of speedbelow'the normal rate, the reverse movement of said governor-balls brings said 7 disk f incontact with said disk It, and the motion is transmitted from the spindle e through said disk f, disk h, shafti, pinion ad, changegear bb, pinion 00, large gear dd, pulley j, band k, and the pulley on said nut din a reverse direction, but at the same or substantially the same relative speed suited to the requirements of the engine, as before stated.

Having thus described my said improvement in regulators for engine governors, I claim as my invention 1. The combination, substantially as herein specified, of an enginegovernor, governoreonnections transmitting motion to a throttlevalve or cut-ofi', a device for regulating the longitudinal movement of said connections, means, substantially as described, for transmitting rotary motion under the control of said governor to said regulating device, and a device, substantially as described, for varying said rotary motion to suit the requirements of the engine, for the purpose set forth.

2. The combination, substantially as herein specified, of an engine governor, governorconnections transmitting motion to a throttlevalve or cut-off, a device for regulating the longitudinal movement of said connections, means, substantially as described, for transmitting rotary motion from the spindle of said governor to said regulating device, and a change-gear device for varying said rotary moti on to suit the requirements of the engine, in the mannerset forth, for the objects stated.

3. The-combination, substantially as herein specified, ofa main governor, connections transmitting motion therefrom to a throttle-valve or cutoff, a device for regulating the longitudinal movement of said connections, a supplementary governor provided with means, substantially as described, for transmitting automaticallycontrolled rotary motion to said regulating device, and a change-gear device for varying said rotary motion to suit the requirements of the engine for regulating the speed of an engine, in the manner set forth.-

In testimony whereof I have signed this specification at Boston, lliassachusetts, this 2d day of October, A. D. 1883.

' JAMES WILLIAMS.

Witnesses:

F. W. LANNSBURY, E. H. MoINrosH.