US131161A - Improvement in governors - Google Patents

Description

l. H; AJGERICKE. Improvement in Governors.

Patented Sep.

. .lli

ENT rien.

JOHN H. A. GERICKE, OF HOBOKEN, NEW JERSEY.

IMPROVEMENT IN GVERNORS.

Specification forming part of Letters Patent No. ldl, dated September 10, 1872.

To alltfwhom 'it may concern:

Be it known that I, J onN HARTMANN AU- GUSVT GERICKE, of Hoboken, in the county of Hudson and State of New Jersey, have invented a new and useful Improvement in Governors; and I do hereby declare the following to be a full, clear, and exact descriptionthereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawing forming part of this specification, in which drawing- Figure 1 represents a vertical central section of my governor.v Fig. 2 is a top view of the reservoir or turbine wheel case A. Fig. 3 is a top view of the rotating turbine-wheel B, with the jacket H removed. Fig. 4 is a section of of said turbine-wheel with a part of the jacket removed.

The remaining figures are details, which will be referred to as description progresses.

Similar letters indicate corresponding parts.

This invention relates to an improvement on the class of huid-governors, and it is intended particularly to facilitate the construction of these governors, and also to reduce the friction, and so to give a greater pressure with less revolution. My improvement consists in the arrangement of a reservoir with cover, and an inclosed turbine or reaction wheel receiving motion from the engine; the reservoir and cover, which are provided with flanges for the purpose of being fastened together, the cover of said reservoir being bored out and faced to receive the bevelgear, shaft, and stuffing-box 5 and the reservoir to receive a turbine or reaction water-wheel, which is mounted on a shaft that has'its bearing at one end in a socket in the hub of the stationary guide-curves, while its other end extends through the stuffing-box in the cover, and then through the bevel-gear, in which the shaft forms a square, and in said square a friction-roller is inserted which has the form of a V on its circumference. The upper end of the shaft is turn ed out to receive a collar for the connection of the weighted lever working the throttle-valve, in such a manner that, when the speed of the engine increases beyond the desired point, the pressure of the fluid brought to bear on the governorpiston or turbine-wheel by the action of the quick-turnin g turbine-wheel closes the throttle-valve, and when the speed of the engine decreases this action is reversed.`

In the drawing, the letter A designates the reservoir or turbine-wheel case. This case is provided, at its upper end, with a ange, a, which is faved off, so that when the cover C is fastened to it`by means of screws c, a tight joint will be produced between them. The base of the case A is provided with a hub, d. It is bored out to receive the shaft F, and with fixed vanes or guides of a like general character as the vanes of the turbine-wheel, as shown in Fig. 2. The long vanes f extend from the hubd of the base ofthe case to the side of the) case A 5 the other vanes, g, h, and l, being shorter, not extending to the hub, but distant therefrom by varying degrees, and yet being joined to the sides of said case A. These vanes, therefore, f, g, h, and l, severally project over the annular openings of the turbinewheel, and divide the stream of water or fluid which forces it into an equal number of branches, which are deflected by them toward the center of the case, as indicated by the arrows in Fig. 2, while the fluid proceeds through the cells made by said vanes. The rotary motion imparted to the fiuid by the turbine-wheel is gradually lost as it proceeds toward the center of the case A, and it becomes quiet and n10- tionless therein while it is gradually forced by the pressure of the currents from above in those cells, the turbine-wheel B with its shaft F being raised. The upper part of the case A is bored out to receive the turbine or reaction wheel B, detached views of which are shown in Figs. 3 and 4. B designates a turbinate wheel, consisting of a hollow truncated cone, inverted, with vanes or paddles m, n, o, and r. The wheel is mounted on a shaft, F, which has its bearing at one end in the hub d of the case A, while its other end extends through the cover O, which is provided with stuffingbox and a tube, e, and a stand, p, which are cast solid with the cover and projecting outside and above, as shown in Fig. 1. On the shaft F is mounted a bevel-gear, 7s, which transmits the motion to the turbine or reaction wheel received from the shaft N and bevelgear s, which receives the motion from the engine. In the bevel-gear 7c the shaft F forms a square, with a roller, g, inserted, which forms,

at its circumference, a V, as shown in Figs. 5 and 6. The upper end of shaft F, rises to meet the weighted lever D, to which it is properly connected, so as to be capable of rotary motion, as well as longitudinal motion. The lever D connects with the throttle valve. The vanes or paddles on the turbine-wheel B, detached views of which are shown in Figs. 8 and 4--Fig. 3 being a top view with jacket H removed, and Fig. 4 a side view with jacket removed-are made in three, four, or more systems-that is to say, three of them, m, extend from near the center to the circumference of the wheel; ythree of them, n, extend from the center about one-fourth to the circumference of the wheel; three of them, o, extend from the center about one-half to the circumference of the'wheel; and the remaining three extend from the center about threefourths to the circumference of the wheel. Their shapes are seen in Figs. 3 and 4, their upper ends extending radially from the wheel, and being cut in horizontal planes, and their lower ends being bent to tangential lines on the circumference of the wheel, while outside of the vanes it receives a jacket, H, cast solid with the wheel, as shown in Figs. l, 3, and 4. Through this jacket H all the slip ofthe fluid or water is prevented.

The long paddles m take the water first near the center of the shaft, and move it out and downward toward the circumference of the wheel. Next after them the paddles n, and then o, and then the paddles r, take the water or fluid and so compress the same in the cells of the case A and underneath of the hollow coneof the turbine-wheel B, so that the same is elevated and driven against the cover C of the case A.

By combining the guide-curves of caseA and the turbine-wheel B, the fluid to be compressed is conducted to and from the wheel with the least possible friction; and by enabling the fluid to exert its full power on the bottom of the wheel I have produced a governor which gives a correct result; and, furthermore, by securing all those parts which are liable to wear outside, so that easy access can be had to them.

What I claim as new, and desire to secure by Letters Patent, is

The combination of the reservoir A with a series of guides f g h l, the wheel B with a se ries of paddles m n o r, and jacket H, and the roller q in shaft F working in a square of the gearing, all constructed and arranged substan tially as and for the purposes set forth.

This specification signed by me this 17th day of July, 1872.

J. H. A. GERICKE.

Witnesses:

RICHARD GERNER, FRANKLrN BARRETT.

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