US69458A

US69458A - Improvement in governors

Info

Publication number: US69458A
Authority: US
Publication date: 1867-10-01
Anticipated expiration: 1884-10-01

Description

@einer tats @anni @Hire IMPROVEMENT IN GOVBRNORS.

digi tlgetnle nfzmh tu im tlgeszsttrrs ntent rut maling putt nt, its same.

TO ALL WHOM I'I MAY CONCERN:

Be it known that I, THOMAS B. MCCONAUGHEY, of Newark, Delaware, have invented certain new and useful Improvements in Governors; and I hereby declare that the following is a true, full, and exact description of the same, referenccbeing had to the accompanying drawings and to the letters of reference marked thereon. 'In-the annexed drawings which make a part of this specification- Figure 1 represents a side elevation of' my governor.

Figure 2 'is horizontal section of the governor and arms attached.

The letter A, in fig. 1, exhibits the balance-wheel, with the governorB placed o'n the end of shaft C outside of the balance-wheel, the said governor being constructed and arranged as herein described. D represents a broad board of suitable thickness, extending across the balance-wheel, having its centre to correspond with the centre of the balance-wheel. On this board are the two arms e e, which are made circular at their outer ends, (see fig. 1.) The said arms arekept in position as follows: first, by means of a bolt which passes through an Oblong hole in the circular heads of arms e e, these bolts having large heads, as shown in the drawings; secondly,`

by the notched levers y g, which play laterally on the bolt that confines ythem to hoard D, and act on the arms e e by a bolt that eonflnes them to said arms. In addition to the levers gg, the two guide-barsff are pivcted to the arms e e and board D, which conf-ine the said arms to a lateral motion. h represents a spiral spring, the ends of' which are looped over the notched-levers gg. The inner end of governor B is hollowed out, having the rim or fiangcn at its outer circumference. 'm represents a shoulder on arms e e, which will press against flange n when the arms e e are thrown Voutward by th'e rapid motion of' the governor B. L designates a brake-lever, which is bent so as to form a loop near its centre, to which loop a cord is fastened, one end of said cord being attached to the governor, the other part, after having .been secured to afloop at the end of the upper arm of lever L, is made to extend sufiieien'tly far to be fastened, when required, to a pin in the frame of the horse-power. To the lower arm of lever L is fastened the brake S, the action of which will be hereinafter described. i

The operation of my machine is as follows: When the fly-wheel to which the governor is attached. is made to revolve rapidly the arms e e will'be by centrifugal force thrown outwards so that the shoulders m mgwill presslngainst the flange n. This pressure will cause the governor B to revolve and windup the cord attached to the brake-lever L, und the centre of the brake-lever being elevated bythe winding up of the cord, will bring the bral-ce S in contact with the balance-wheel A, and check its motion. When the motion becomes too slow, the arms e e will be drawn together by the spiral spring h operating on notched levers g g, and the flange n being now relieved from the pressure of shoulders m on arms e, the metier-1 of the balance-wheel will be unimpeded. The speed may be changed from fast to slow by shift-ing the spring t in the notches of levers g, so as to increase or diminish the pressure of' arms e c on the flange n. When it is desired `to stop the motion of my machine entirely, thc looped end'of cord L will be passed over a pin on the rim of the driving-wheehand the brakes made to press against the circumference of the balance-wheel A.

Having thus described my invention, what I claim, and desire to secure by Letters Pat-ent, is-

1. The combination of notched levers gg with spiral spring h, constructed as and for the purpose set forth.

2. The looped lever L when combined with brake S inthe manner and for the purpose described.

3L The governor B, in combination with arms e e, notched leversg g, the spring h, and lever L, the whole constructed and operating in the manner and for the purpose substantially as herein set forth.

THOS. B. McCONAUGI-IEY.

Witnesses:

E. B. McCoNAUGHEY, JOHN K. McCAnNE.