US628919A

US628919A - Governor mechanism.

Info

Publication number: US628919A
Application number: US70184799A
Authority: US
Inventors: Gustav A Brachhausen
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-01-11
Filing date: 1899-01-11
Publication date: 1899-07-18
Anticipated expiration: 1916-07-18

Description

No. 623,9l9. Patented July I8 I899.

G. A. BBACHHAUSEN. GOVERNOR MECHANISM.

(Application filed Jan. 11, 1899.)

(No Model.)

ITNESSES: i l INVENTOR W BYM %%i/% W 7 m: norms .ETERS cc., FHOTO-LITHCL, WASHINGTON, o. c

Prion.

GUSTAV A. BRACHHAUSEN, OF RAIIWAY, NEWV JERSEY.

GOVERNOR MECHANISM.

SPECIFICATION forming part of LettersPatent No. 628,919, dated July 18, 1899.

1899. Serial No. 701,847. (No model.) I

Application filed January 11,

To aZZ whom it may concern.-

Be it known that I, GUsTAv A. BRACHHAU- SEN, a resident of Rahway, Union .county, State of New Jersey, have invented certain new and useful Improvements in Governor Mechanism, of which the following is a full, clear, and exact description.

My invention relates to an improved governor mechanism more particularly adapted for use in musical instruments for regulating the speed thereof.

The present invention is in the nature of an improvement upon the governor mechanism shown and described in Patents Nos. 593,759 and 593,760, granted to me on the 16th day of November, 1897.

In mechanical musical instruments as heretofore made governors have been provided which operated automatically to cause the instrument to be driven .at a uniform rate of speed, and additional mechanism, in the nature of a brake operable upon the shaft of the governor, was provided to control the rate of speed at which the instrumentwas to be op-.

erated. In all such devices the application of the brake to slacken the speed of the governor causes the fly-fans or governing elements to be brought nearer the center of rotation, which in itself would tend to allow the governor to be rotated at a higher rate of speed. For this reason great difficulty has been experienced heretofore in providing an efficient governor, and it has been found impossible to provide a governor wherein the automatic action was not interfered with by the application of the brake or hand-controlled regulating device.

The object of the inventions embodied in the patents hereinbefore referred to was to overcome these defects.

The present invention has a like object in View.

A further object of the invention is to provide a governor mechanism of the character described wherein there is little or no friction between the governor and its hand-controlled regulating mechanism.

0 these ends my invention consists in the novel arrangement and combination of parts hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a side view, with parts broken away, of a portion of an automatic musical instrument to show the application of my governor. Fig. 2 is an end view of the same,looking in the direction of the arrow in Fig. 3. Fig. 3 is a sectional view of the same, taken on line 3 3 of Fig. 2;

Inthe accompanying drawings,A represents the framing of a motor,which preferably supports a main spring-barrel B, from which is driven a train of gear a b c, and a sprocketwheel 0, which is intended to engage in perforations in the note disk or sheet G to operate a musical instrument. The gear a, operates upon the worm d of the governor-shaft c in the usual manner. Upon the governorshaft 6 is carried a rigid arm or support f, to which are movably or pivotally connected, as at g, the arms D, so that said arms D have a movement independent of their movement with the governor-shaft. Pivotally secu red to these arms D are win gs or. governing elements E, which in the present instance are shown as extending to each side of the pivot h, upon which they are supported. These wings or' governing elements E are maintained in the normal position by springs 2', each of which is shown in the present instance as connected at one end to a wing E, as indicated atj, and at the opposite end to one of the wing-carrying arms I), as indicated at 7o, though I would have it distinctly understood that the springs may be otherwise arranged. Connected to the wing-carrying arms D,. as indicated at l, are spring-arms F,which have their opposite ends secured to a sleeve in, which is connected to or forms part of a movable section it, which is preferably grooved, as indicated ato. This section, together with the sleeve on, connected thereto, is loosely carried upon the shaft'e of the governor and is adapted to slide longitudinally thereon, as will be hereinafter more fully explained. Projecting from the sleeve m is a spring-pressed pawl or frictionclutch p, the free end of which is adapted to cooperate with the rack-like portion q, fixed to the shaft 6 of the governor. The springpressed pawl 19 normally bears upon the racklike port-ion q and maintains the sleeve or, together with the parts connected thereto, in the position to which they are moved. It will thus be observed that the spring. tension of the arms F is constantly exerted upon the arms D, and that the tension of said spring cou nterbalances, so to speak, the pressure exerted by the spring-pawl, so that only the slightest pressure need be exerted uponthe section n in order to move the pawl 19 from one to another of the points or ridges on the rack-like portion q, and that the spring-arms F likewise form positive connections between the arms D and the sleeve m, so that a movement of said sleeve longitudinally upon the shaft e of the governor will impart a corresponding movement to the arms D to move them around their pivots g, and that this movement of the arms D aroundtheir pivots will cause the pivots h of the wings of the governor to be drawn to or forced from the adapted to cooperate with the scale a, as indicated in Fig. 1 of the drawings. By setting this pointer or arm upon any one of the indicating characters on the scale a the section it will be moved to a corresponding position,

' and the movement of the section n will cause the wing-supporting arms D of the governor to lee-adjusted to a corresponding degree. It will be observed that by these means a regulating device in addition to the automatic operation of the governor is provided and that there is no frictional contact between the hand-controlled shifting mechanism of the governor and thegovernor itself, so that the a speed of the governor is not affected by an application of the hand-controlled adjusting or regulating means.

It is thought that from the foregoing description the operation-of my governor mechanism will be clearly understood. When the regulating means has been set and the instrument started, the governor will rotate in the direction of the arrow in Fig. 2 and the wings will be automatically contracted or expanded to carry them farther into or out of the overlapping position represented in Fig. 2 as the tension of the spring in the drum or spring-barrel B is greater or less. If the operator desires to change the fixed rate of speed of the instrument, it is merely necessary to adjust the pointer t upon the scale, and thereby convey the pivots hot the wings toward or away from the center of rotation of the governor, as heretofore explained, when the speed of the instrument may be changed as desired.

Having described my invention, what I claim, and desire to secure by Letters Patent, 18;

1. In a governor mechanism, the combination of automatically-expanding governing elements, arms carrying the said governing elements, said arms being movable independently of their movement with the governorshaft' spring-arms connected to said movable arms and means for adjusting said springarms.

2. In a governor mechanism, the combination of automatically-expanding governing elements, arms carrying said governing elements, said arms being movable independentlyof their movement with the governorshaft spring-pressed arms connected to said movable arms, means for adjusting said spring-arms and means rotatable with the governor for maintaining the spring-arms in the adjusted position. 1

3. In a governor mechanism, the combination of automatically expanding springpressed overlapping wings, arms to which said wings are pivotally connected, said arms being movable independently of their'movement with the governor-shaft spring-armsconnected to said movable arms and means for adjusting said spring-arms.

4. In a governor mechanism, the combination of automatically expanding springpressed overlappingwings, arms to which said wings are pivotally connected, said arms being movable independently of their movement with the governor-shaft spring-arms connected to said movable arms, means for adjusting said spring-arms and means rotatable with the governor for maintaining the spring-arms in the adjusted position.

5. In a governor mechanism, the combination of automatically-expandinggoverning elements, movablearms carrying said governing elements, springarms connected with said movable arms, a sleeve longitudinally movable upon the governor shaft and to which sleeve the spring-arms are connected and means for securing the sleeve in the adjusted position.

6. In a governor mechanism, the combination of automatically-expanding governing elements, movable arms carryingsaid governing elements, spring-arms connected to said movable arms, a sleeve longitudinally movable upon the governor-shaft and to which sleeve the spring-arms are connected, means for moving said sleeve and a spring-pressed friction pawl or clutch and a cooperating rack carried by and rotatable with the governor for securing the sleeve in the adjusted position.

'7. In a governor mechanism, the combination of automatieally-spring-pressed overlapping wings, movable arms to which said wings are pivotally connected, spring-arms connected to said movable arms, a sleeve longitudinally movable upon the governor-shaft and to which sleeve the spring-arms are connected, means for moving said sleeve and a spring-pressed friction pawl orclutch and a cooperating rack carried by and rotatable with the governor for securing the sleeve in the adjusted position.

GUSTAV A. BRAQIIHAUSEN. v Witnesses:

MAURICE BLOCK, Joi-IANNA M. STRoPr.

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