US368443A

US368443A - Speed-regulating device for engines

Info

Publication number: US368443A
Authority: US
Publication date: 1887-08-16
Anticipated expiration: 1904-08-16

Description

(No Model.) 3 Sheets-Sheet 1.

C. W. BALDWIN.

SPEED REGULATING DEVICE EUR ENGINES. 180.868,448. Patented Aug. 16,1887.

3 Sheets--Sheet' 2.

(No Model.)

C. W. BALDWIN.

SPEED EEGULATING DEVICE 'EUR ENGINES.

Patented ug. 16, 1887.

N. PETERS. vnanwumagm'pngr, wmmgwn. D. c.

(No Model.) A 3 Sheets- Sheet 3.

C. W. BALDWIN.

SPEED REGULAIING DEVICE -ER ENGINES.

No. 368,443. Patented Aug. I6, 1887.

UNiTED STATES PATENT OFFICE.

OYRUS IV. BALDVIN, OF YONKERS, NEW YORK, ASSIGNOR TO VILLIAM E. HALE, OF CHICAGO, ILLINOIS.

SPEED-REG ULATING DEVICE FOR ENGINES.

SPECIFICATION forming part of Letters Patent No. 368,443, dated August 16, 1887.

l Application filed August 19, 18E6. Serial No. 211,299. (No model.)

To all whom it may concern.-

Beit known that I, CYRUs W. BALDWIN, a citizen of the United States, residing at Yonkers, in the county of Vestchester and State of New York, have invented certain new and useful Improvements in Speed-Regulating Devices for Engines, of which the following is a specification.

My invention relates to devices for regulating the speed of engines; and it consists of two heads revolved by the engine and a. disk connected to move the engine-valve or other regulating device, and a governor whereby the contact of the disk with one or other of the heads is determined by the governor, and the regulation of the engine thus effected.

In the drawings, Figure l is aside elevation, in part section, of sutlicient of a gasengine to illustrate the use of my speed-regulator in connection therewith. Fig. 2 is a longitudinal section of a portion of the rear end of the working cylinder and adjacent valve-chamber. Fig. 3 is an enlarged sectional plan of the speed-regulating devices. Fig. 4 is a longitudinal section on the line l 2, Fig. 3. Fig. 5 is a side view of the speed-regulating devices. FigfG is a section on the line 34, Fig. 1. Fig. 7 is a view illustrating a modiiication.

A represent-s a governor, which may be a ball-governor, as shown, or of any other suitable construction. B is what Iterni a ""spool, consisting of a sleeve provided with two parallel circular heads or flanges, 9' l, or of such tlanges mounted upon a spindle, a, and preferably adjustable thereon.

In the construction shown the spindle a slides in a hollow portion of the governorshaft 3, to which are hung the arms carrying the usual balls, connecting-rods being jointed to the balls and to the governorvsleeve 4. A transverse pin, 5, lcarried by the sleeve 4, passes through a longitudinal slot, 6, in the governor shaft and through the spindle a, which is thus connected to move longitudinally with the sleeve.

The usual spring, 7, serves to force the sleeve outward until it is drawn in by the movement ofthe balls. Between the heads j Z is arranged, upon a shaft, L', at right angles to the spindle, a disk, b, which, as shown, consists of two flat plates, between which is clamped a disk, of rubber, leather, or other frictional material, which projects very slightly beyond the edges of the plates, so as to make a frictional rim for contact with the inner faces of the heads, and the latter are arranged at such a distance apart-slightly greater than the diameter of the disk b -that the disk may occupy a central position out of contact with either head; but a very slight longitudinal movement of the spindle c will sufiice to bring one head or the other into contact with the disk.

The governor-spindle is provided with a belt-pulley, 8, receiving a belt, or is otherwise geared to be revolved by the action of the engine to be governed, and the parts are so adjusted that when the engine is operating at its proper speed the heads j Z will both be out of contact with the disk b. Vhen thus arranged, an extremely slight increase of speed, causing the balls to ily out, will move inward the sleeve 4 and at once bring the head j into contact with the disk b, and will cause the latter to be at once revolved in the direction of its arrow; and any reduction from the normal speed will carry the head Z into contact with the disk Z1 and revolve the latter in an opposite direction. These movements of the diskbare made the medium of altering the position of the governing-valve, shifting-bar, electrical switch, or other engine regulator, according to the character of the engine, and the intermediate devices for communicating motion from the disk to such regulator maybe varied to a great extent.

The construction shown in the drawings is adapted for use with a gas-engine, and in this case the shaft 7c is threaded at one point and there 'passes through a nut, 9, pivotally supported by a bracketV, so that a longitudinal movement will be imparted to the shaft in one direction or the other, according to the direction in which it is turned, this longitudinal adjustment of the shaft altering the position of the regulator.

To prevent the disk from continuously revolving after either head has been brought into contact therewith, and until the position of the head is changed, I make the inner face of one head, j, convex or conical and the in IOO ner [face of the head Zparallel therewith, or concave, as shown in Fig. 3. kIf the head j is brought against the edge of the disk b, it will be revolved until the shaft 7c, turning in its nut 9 in the direction of its arrow, moves outward sufficiently to carry the edge of the disk b from contact with the conical face of the head, a slight movement of the shaft effecting this result, so that the disk b is turned only a few revolutions sufficient to eff'ect a slight adjustment of the regulator before it ceases its motion-the regulator therefore being altered in position only just enough to compensate for the slight increase of speed. A like result ensues Vwhen the concave head Z is brought against the disk; but if in either case the engine continues to'accelerate or decreaseits motion one head or the other is continuously moved toward the disk 'to maintain contact therewith until the regulator is moved to the desired extent.

The head Z is -slightly larger inA diameter than the head j, and is also provided with a recess, c, near its center or hub, so that if the head Z continues in contact with the disk b the latter will only turn until the regulator is at the limit of its position, whenl the disk will pass opposite the recess o and will then stop. Inlike manner,'when the disk continues in contact with the head j, the disk will be turned until the regulator reaches the limit of its movement in the opposite direction,when the motion of the disk will be arrested by its passing from contact with the head. By these means an extremely slight variation in the speed of the engine will at once turn the disk b in onei'directionor the other and change the position of the regulator-valve or other regu lating appliance; but no further movement of the latter will ensue unless the engine continues to increase or decrease its speed.

Instead of altering the position ofthe spool in respect to the disk, the spool may have no longitudinal movement, andthe disk b may swing'between the heads. One means of effecting this is shown in Fig. 7, and consists in connecting the sleeve 4 to a sliding rod or spindle, a', carrying the nut 9.

lThe regulator inthe construction shown is a wedge, g, slotted for the passage of the spindle 12` of the lift-valve h, which controls the flow 'of the gaseous charge into the cylinder J Y of the engine, as set forth in the Letters Patent No. 325,378, issued to me September 1, 1885.

ln the construction shown-the wedge is carried at one end of a pivoted lever, c, carrying at the other end a pivoted bearing, 13, in which the end of the shaft k turps without sliding. rlhe wedge is curved to correspond to the arc of a circle having the pivot d of the lever o for its center.

The lever c consists of 'a sleeve or hub, 14, from which the two arms project in opposite directions, the said sleeve turning on a pendent pintle, 16, supported by a bracket, 17,and

the lower end of the sleeve rests on a spiral spring, 18, supported by a nut, e, on the pintle, whereby the wedge is kept up to its upper seat to prevent noise.

It will be obvious that the revolving heads and intermediate disk may be used with many different devices for relatively adjusting them under varying speeds, as described, and that they may be employed in many different connections.

The charge is admitted to the rear end of the cylinder and is compressed on the return movement of the piston, and when exploded actsiagainst and propels the piston. When the piston passes and uncovers the outlet-port a, the spent charge passes out of the exhaust. rEhe ignition of the charge results from separating the terminal yelectrodes within the cylinder in a manner notnecessary to be here described, as this and other features constitute the subject-matter of another'application for Letters Patent, Serial No. 194,353.

I do not here claim the combination of the parts described with a gas-engine, as this will constitute the subject of a separate application for Letters Patent.

Without limiting myself to the precise construction and arrangement of parts shown, I claimms 1. A speed-regulating device consisting of two parallel revolving disks or heads driven by the engine, one larger than the other, a disk occupying a position between said heads and connected to operate the engine-valve or other regulator, and a governor whereby one or other of the heads is brought into frictional contact with said disk, according as the speed increases or decreases, substantially as set forth.

2. The combination, with the disk connected to operate the regulator, of two revolving heads on opposite sides of the disk, one greater in diameter than the other, and the latte`- recessed near the center, and a governor for bringing the disk and entire head into contact, according as the speed of the engine must be increased or diminished, substantially as set forth.

3. The combination of the parallel revolving heads, one with a central recess, a disk arranged, between the heads, and a governor for shifting the parts according to the speed of the engine, substantially as described.

4. The combination of athreaded shaft turning in a nut and carryinga disk, heads of different diameters carried by a revolving shaft driven by the engine, and a governor whereby the contact of the disk with one or other of the heads is insured upon a change of speed, substantially as described.

5. rI he combination of the sliding and revolving shaft connected to the regulating device of an engine and carrying a disk, revolving heads upon opposite sides of the shaft, one convex and the other concave, and a governor and connections whereby the contact of the I i i i i ha.,

disk with one or other of the heads results upon a change of speed of the engine, substantially as described.

6. The combination of the heads revolved 5 by the engine, one convex and the other con cave, a disk arranged between the heads, a threaded shaft carrying the disk and passing through a nut, and connections between the shaft and the engine-regulating device, sub- Io stantially as described. 7. The combination ofa shaft driven by an engine and carrying two heads with concave and curved faces, a governor for shifting the heads, a shaft carrying a disk arranged be- 15 tween the heads, and a nut supportingthe shaft .substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two sub- 25 scribing witnesses.

CYRUS XV. BALDVIN. Vi tnesses:

JOHN C. HARRIGAN, WILLIAM RILEY.