US666609A - Governor for spring-motors. - Google Patents

Description

Patented lan. 22, |901.

B. G. ROYAL.

ovsrmon Fon spams morons.

' (Application led June 22, 1899.)

(No Model.)

` UNITED STATES PATENT OFFICE.

EELEQEDl e. EoYA'L, oF PI-nL-ADELPi-HA, PENNSYLVANIA, AssicNoE To' 'r1-mints PARvixvor sAiiE PLACE.

f GOVERNOR Foa SPRING-MOTORS.

:SPECIFICATION forming part of Letters Patent Io. 666,609, dated January 22, 1901.

Application tiled June 22, 1899.

`and cheapen the construction of. devices of this character and also'to produce a strong and durable governor, doing,` away with the delicate fiat springs which are often used in this class of machines. v`

A further object'of my inventionis to provide a simple form ot' brake mechanism to actin combination with the governor mechanism, whereby the speed of the machine can be quickly regulated and controlled 4to suit the character of the reproduction to be made on the machine.

iVith these objects in view my invention consistsin the construction,combination, and arrangement such as will be hereinafter fully described, and particuiarly pointedl out in the claims.

Referring to the drawings, Figure lis a sectional elevation of a portion of a gramophone, showingl my improved governor in side elevation. Fig-2 is an end view'ot` the governor mechanism, and Fig. 3 is a sectional detail elevation of the same. i

. The supportiiig-frame A consists ot a base-1 platea and a curved arm b, in which the upper and lower ends of the `governor-spindle l5 are jonrnaled, preferably in pivot-hearings. On the upper portion ot the spindle B, I provide a transversely-arranged arm c, rigidly secured thereto by means of a pin or rivet o' and having on each of its ends a slotted or bifurcated lng d. In the slotted portions of the lugs cl I pivot the arms e ol the governorballs'E. g l

Looselyinounted on the spindle B below the arm c is a sleeve F, having formed integral with its lower end the disk f. The upserial No. 721,493. \No model.)

per end of the sleeve F is provided witha radial slot f', into which the curved ends e ot' the arms e rest. yOn the lower end of the spindle I3 is a pinion y, which meshes with a -pinion 7L, which is driven bythe motor mechanism. interposed between the pinion g and the low'er end of the sleeve F is a coilsprinf l z', which serves to keep the said sleeve F up and the ball-supporting arms in theirfnormal position, as illustrated in Fig. lof the drawings. Thus as the spindle B revolves and the balls F rise by centrifugal force t' e curved inner ends e' of the arms e, which rest in the slot f of the sleeve F, push the said sleevef in a downward direction, which compresses the spring I', as shown in Fig. 3 of the drawings. AS soon as the spindle slackens and the balls drop the spring i returns the sleeve to normal position.

Pivoted to the arm b of the frame A is a crank L, having the forked arms l, which project under the disk fon the sleeve F, a friction-teat Z being provided on each end, as illustrated. The portion Z2 of the'crank is provided with a slot m, through which passes the reduced end m of the operating-stud M. The inner end of the reduced portion m' is screw threaded and adapted to engage a screw-threaded aperture lm2, formed in the frame A. he shoulder'n, formed at tlie beginning'o` the reduced portion my', bears against the arm l? of the crank. vInierposed between the arm [2 and the frame A isa coilspring n, which allows the crank L to yield slightly as the disk f comes in contact with the teats Z' and also keeps the arm P in contact with the shoulder m3.

The operation of the above-described brake mechanism is as follows: As the governorspindle revolves and the ball-arms e push the disk f downwardly the said diskwill come intoslight contact with Ithe teats Z', carried by the arm Z, and when it is desired to reduce the speed of the governor the stud M is turned -or unscrewed partially from the threaded aperture m2,l which moves the shoulder insoutwardly, and the coil-spring n forces the arm Z2 outwardly, and thereby causes' the inner ends of the forked arms l and the teats Z to move upwardly into greater frictional contact with the disk f, and thus retard the speed IOO of the governor. When the stud M is turned in an opposite direction audits threaded end screwed in'to the aperture m2, the shoulder m3 will bear against the arm Z2 and force it. inwardly, thereby throwing down the inner ends of the arms Z and their teats Z', and thus decreasing the frictional contact between the said tears Z and the disk f or removing said teats entirely out of contact with said disk.

The slot m is of a length sufficient to allow the lever Lto be tilted sufficiently to remove the 4feats Z entirely away from contact with the disk f, and when this position is attained the spring-n will be compressed between the arm Z2 and the frame b.

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

1. In a governor for spring-motors, the cmbination with the governor-spindle of alooselymounted sleeveJ F, having a disk, f, onits lower end, a spring, i, for supporting the same, a horizontally disposed cross-arm, c,

rigidly secured to the spindle above the sleeve, governor-balls, E, having arms, e, pivoted at vtheir upper ends in cross-arm, c, and extensions e' formed on the inner ends of the arms, e, adapted to engage the top of the sleeve, F, substantially as described.

2. In a governor for spring-motors, the coinbination with the governor-spindle of a sleeve, F loosely mounted thereon, a disk, f, formed -on the lower end of said disk, a coiled spring, 1', carried by the spindle adapted to bear against the under side of the sleeve, F, a horizontally disposed cross-arm, c, rigidly secured to the spindle above the sleeve, F, lugs, d, formed on each end of the said cross-bar, govern'or-balls, E, having supporting-arms, e, pivoted at their upper ends to the lugs, d, extensions, e', provided on the inner ends of Athe'arxns, e, and the slot-s, f', provided on the upper end of the sleeve, F, adapted to be engaged by the extensions, e', of the governorarms, substantially as described. .o l 3. The combination with the governor-spindle, of a spring-supported sleeve loosely mounted thereon having a friction-disk on its lower end, a rigid cross-arm carried by the spindle, the governor-balls having arms pivoted to said cross-arm, extensions formed on .der the 'friction-disk on the movable sleeve,

a perpendicular arm, Z2, on the outer end ot' said leverl having a slotted upper end, an operating-stud, M, having a reduced screwtlireaded portion adapted to pass through the slot and engage the machine-frame and a coilspring interposed between said' frame and the perpendicular arm, Z2, siihstan tially as described. e

5. The combination with the governor-spindle, a movable sleeve, F, adapted to be thrown down by the centrifugal action of the balls, a fr 'i-ction-disk,'f, carried on the lower end of said sleeve, a brake'comprising the forked arm, Z, having aL teatfon theend of each fork adapted to contact with the friction-disk, f, the said arm, Z, being pivoted to the frame of the machine, a -perpendicular arm, Z2, connected to the end'of the forked arm, a slot, on, formed in said arm, an operating-stud, M, having a reduced end, m', adapted topass through t-hel slot, 'm, and-engage a screwthreaded opening, m2, formed in the machineframe, and a coiled spring, n, .interposed between the frame and the arm, Z?, substantially as described.

In witness whereof I havehereunto set my hand this 10th day of March, A. D. 1899. BELFORD G. ROYAL.

Witnesses:

BENJ. F. PERKINS,

Hoi/1ER PETTIS.

Images