US411056A - Governor - Google Patents

Description

(No Model.)

S. QUAST.

GOVERNOR.

NO- 411'055' Patented Sept. 17, 1889.

N. PETERS. Pham-umngmpher, wmingwn. D. c.

UNITED vSTATES PATENT OFFICE.-

STEPHAN QUAST, OF CHICAGO, ILLINOIS.

GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 411,056, dated September 17, 1889. Application filed March 12, 1889. Serial No. 302,940. (No mcdel.) Patented in Germany March 22, 1881, No. 16,159.

manner ofregulating an engine bycontinually changing from one position to another and alternately increasingV and diminishing the speed of the engine within a given range.

The primary objects of my improvement are to provide a regulating mechanism wherein the pendulum shall act upon and control the valve, but in which, on the other hand, the latter shall not exert any influence upon the pendulum, and whereby the movement of the mechanism through which it acts on the valve shall be directly proportional to the vertical play of the governor and aiford regularity or evenness in the movement of the pendulum.

In the accompanying drawings, Figure 1 shows my improved device in sectional elevation. Fig. 2 is a broken sectional view of the part of the device from orfrom near the lower end of the screw, the section being taken at right angles to Athat of Fig.` l; and Fig. 3 is a broken view similar to that presented in Fig. 1 and showing a modification.

A, Figs. l and 2, is the ordinary rotary spindle, having supported from its upper end, in a usual manner, the pendulum portion B.

C is the weight on the spindle, but loose thereon, so as to be unaffected immediatelyby its rotary movement and having a sleeve-extension r below it around the spindle, and q' is a collar loosely surrounding the sleeve r to permit of its sliding up and down on the latter, and having a circumferential groove q', into which extends the end of the valve-controlling lever p, which may be fulcrumed on an arm o, extending outward from a frame portion D of the device, which serves also to support other parts hereinafter described.

E is a beveled gear-wheel secured in horizontal position upon the spindle A, near the lower end of the latter, to rotate with it.

F is the driving-shaft, supported on the frame D and carrying vertically a beveled gear-wheel E, meshing with the wheel E', and also with a similar Wheel E2, loosely surrounding the spindle A above the wheel E', so as not to rotate with the spindle. Each wheel E and E2 has respectively on the opposing faces a flange @the edge of which flanges are provided with clutch-teeth m.

G is a sleeve surrounding the spindle and terminating at its lower end in a lateral flange Z, extendingbetween the flanges n of the wheels E and E2, and provided on its upper and lower sides wit-h clutchteeth m to interlock with those above or below them, in the manner and for the purpose hereinafter described. The parts n and Z thus form clutches or a preferred form of the mechanism for interlocking the screw, hereinafter described, with the driving-shaft and valve-controlling mechanism p, as shown in Fig. 1 or in Fig. 3.

The sleeve G is threaded externally toward its upper end to form a screw H, having a diametrically-smaller screw H inserted into it and .loose upon the spindle, but confined against vert-ical movement between collars @c and which rotate with the spindle. The screw I-I ,has a key g, and t-he screw H a keysleeve g', in which the key g may move up and down. Around the larger section of the screw is a flanged nut 7c, connected from its flange by means of rods t' with a flanged collar 7c', loosely surrounding thesleeve r toward its lower end, and around the part H of the divided screw is a flanged nut h, connected by means of rods i', extending vertically at right angles to the rods 11, with laterallyflanged extensions of the collar q.

The operation is as follows: The wheel /E on the rotating driving-shaft, by its permanent engagement with the beveled gear-wheels E and E2, turns the former, and with it the'- spindle A, in one direction (right or left, depending on the direction of rotation of the driving-shaft) and the wheel E2 in the opposite direction. As the load of the engine lightens, producing increase of the speed of the driving-shaft and divergence of the pendulum-balls B, the weight C is raised, and with it, through the sleeve r, rods t, and nut la, the sleeve G, thereby moving over-that is, sliding vertically uponmthe screw H and bring-v IOC ing the teeth ou the upper side of the flange Z in mesh with the teeth m above it, and causing the divided screw on the sleeve to be re volved in the direction of rotation of the wheel E2, and thus turning the stationary screw Il in the nut 7.1 and the screw II in the nut h in a direction which causes the nuts to rise and the nut h to raise the collar q, which raising of the latter actuates the lever p to shut to the required extent the valve. (Not shown.) \Vhen the engine attains its regular speed, the pendulum, collar la', and nut 7n stop rising, and the screw II will follow the clutchilange n until flange Z is disconnected from the flange n. As the speed of the engine gets lower, the pendulum, the collar 7,3', the nut 7c, and the screw .II move downward, and the clutch-flange l will engage the clutch m 011 the lower flange 'n of the beveled gear E' until the engine again attains its regular speed. Then the pendulum and the parts it carries stop moving downward and the clutchflange Z follows the clutch-ilange n until it becomes disconnected. \Vhen in the divergence of the pendulunrballs they reach an elevation corresponding with that at which they remain stationary, as meeting the requirements of the engine, the clutch is naturally thrown out of mesh, thereby enabling thc pendulum and collar q to remain in their attained positions.

It will be understood that when the lower screw H is moved upward or downward through' the medium of the pendulum the key g moves in the key-sleeve gwithout pro ducing any effect upon the screw Il', but that as soon as the screw H is turned by engagement between the clutch and a flange n the screw H will be turned in the same direction. The thread on the screw Il is provided to allow the pendulum to move up and down. lVhen the pendulum rises, the screw H will be turned through the engagement with a clutchflange n and works in the nut k, which is connected through the rods L' with the collar 7a so long as the pendulum continues to rise. As soon as the pendulum stops to change its position, the clutch-flangel on the screw ll disconnects from the clutch-flange n and stops the rotation ot the screw Il and the vertical movements of the nut k and collar k.

The screw l-I is herein referred to as being stationary in the sense that it has no vertical movement, as has the screw II, inasmuch as Vthe collars :c hold it against vertical play; but it. does not mean that the screw H is non-ro tary, since it is loose on the spindle and must turn with the turning ot the screw H, owing to the provision of the key g.

The modification illustrated in Fig. 3, while substantially like the construction illustrated in Fig. l, affords an adaption ot t-he invention particularly for controlling slide-valves. To this end a worm-wheel p (corresponding with the lever p in Fig. l) on a shaft g, connected 1 with the valve (not shown) to be controlled,

meshes with a worm-sleeve p', secured around a vertical rotary shaft A, which is normally stationary and actuated to turn in one ldirection or the other as the divergence or convergence of a pendulum (with which the device is connected from a stem c) causes a sleeve r', carrying the screw II and forming with the latter a part of the shaft or spindle A, to ascend or descend, and thereby produce engagement of the teeth m on the upper or lower side of the flange Z with the re* spectively adjacent teeth m on the flange n of the gear-wheels E2 and E', which are both loose on the shaft.

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

l.. In a governor, the combination, with the pendulum, drivingshaft,and connecting me dium between the governor and the valve to be controlled, of a vertically-movable screw Il and a vertically-immovable screw II ,both surrounding the governorspindle and con nected to rotate together, and interlocking mechanism actuated by the rise and fall of the pendulum to rotate the screw respeetf ively in opposite directions, and thereby actuate thc said conneetin g medium between the governor and valve to regulate the valve, sub stantially as described.

2. In a governor, the combination, with the pendulum, driving-shaft, and connecting me dium between the governor and valve to be controlled, of a vertically-movable screw II and a vertically-immovable screw Il', both surrounding thc governor-spindle and connected to rotate together, a miter-gear E on the driving-shaft, miter-gears E and E2 on the spindle and in mesh with the wheel E, and clutch mechanism actuated by the rise and fall of the pendulum alternately to interlock the screw with the respective miter-gears on the spindle, and thereby turn the screw and produce action upon the said connecting medium to regulate the valve, substantially as described.

In a governor, the combinationvith the pendulum, driving-shaft, and connecting' medium between the governor and the valve to be controlled, of a vertically-movable screw I-I and vertically-immovable screw Il', both surrounding the governor-spindle and connected to rotate together, a miter-gear E on the driving-shaft, miter-gcars E and E2 on the spindle and in mesh with the wheels E, flanges n on the respective wheels E and E2 and provided with clutch-teeth m, and clutch-teeth m', connected with the screw and extending between the toothed flanges fn, whereby the rise and fall of the pendulum alternately interlocks the screw with the mitengears on the spindle, and by the resultant turning of the screw actuatcs the said connecting medium to regulate the valve, substantially as described.

4. A governor comprising, in combination, a rotary spindle A, supported by a suitable frame D and carrying a pendulum B, a weight C, having a sleeve-extension r loosely sur- IIO rounding the spindle, a sliding collar q onv the said sleeve-extension to engage with the lever b, leading to the valve to be controlled,

a vertically-movable screw H, having a key g, and a vertically-immovable screw H', having a key-sleeve g', and both loosely surrounding .the spindle, a toothed flangel on the lower end of the screw H, nutsk and h,respeetively surrounding the screws H and H', and oon- Io heated, respectively, with a collar k on the sleeve-extension 7' and With the collar q, miter-gears E and E2, surrounding the spindle on opposite sides of the toothed ange Z, and a miter-gear E in mesh with thevvheels E and E2 and actuated by th'e driving-shaft, r 5

substantially as and forthe purpose set forth.

- STEPHAN QUAST. In presence of M. J. BOWERS,

J. W. DYRENFORTH.

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