US735518A - Mechanical movement. - Google Patents

Description

PATENTED AUG. 4, 1903.

J. H. HUSSEY. MECHANICAL MOVEMENT.

k APPLICATION FILED AUG. 14, 1902.

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No. 735,518. PATENTED AUG. 4, 1.903. J. H. HUSSEY. MECHANICAL MOVEMENT.

APPL IOATION FILED AUG. 14, 1902: N0 MODEL.

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dam-4% PATENTED AUG. 4, 1903 J. H. HUssEY. MEGHANIGAL'MOVEMENT.

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UN TED STATES Patented August 4, 1903.

PATE T OFFICE.

MECHANICAL MOVEMENT.

v SPEGIFIGATION forming part of Letters Patent No. 735,518, dated August 4, 1903.

Application filed August 14, 1902. Serial No. 119,653. (No model.)

To aZZ whom it may concern:

Be it known that I, JAMES HANSON HUSSEY,

'of Spokane, in the county of Spokane and State of Washington, have invented a new and useful Improvement in Mechanical Movements, of which the following is a specification.

My invention is in the nature of an improvement in mechanical movements, my object being to reduce to aminimum the motive power necessary to maintain a constant motion.

My invention consists in the novel construction and arrangement of parts herein described and claimed, and illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of mechanism illustrating the principles of my invention. Fig. 2 is a rear elevation of similar mechanism with the walking-beams shown in section. Fig. 3 is atop plan view of the walking-beam employed with my invention. Fig. 4 is a perspective view of the balancing-car.

The invention,broadly speaking, comprises mechanism interposed between the driving power and the work it operates upon whereby the power derived from a reciprocating motor is evenly delivered to the work. Taking for purposes of illustration the commonest form of motor now in use, the steam-engine, it is a well-known fact that the power derived therefrom is delivered with constant-variation, according to the position of the crank-shaft of the engine, position of the piston, 66c.

Referring to the drawings, A A indicate suitable towers upon which the walkingbeams and operating-levers of my device are supported. These towers are two or more in number, and the two sides of each tower parallel with the main shaft are strongly braced with angle-irons. These bracesA are socured to the corner-posts of the towers by rivets. Suitably supported at the top of each tower upon the short bars A is the shaft a, upon which the walking-beam B is balanced. The main drive-shaft O, carrying the flywheels D, is supported upon a suitable foundation E, said shaft C being disposed beneath the walking-beams and in a line at right angles to them. Each walking-beam is reinforced by the truss-rods B B on each side thereof. These rods are secured to the beam at each end by the bolts B walking-beam is provided with the cones B which operate as spreaders to hold the rods suitably separated from the beam at their centers. Each of these rods is provided with a turnbuckle B for imparting the necessary tension thereto from time to time.

The wrist-pin B is carried by each walkingbeam at a suitable distance from its center and projects outwardly at one side of said beam to be engaged by the upper end of the connecting-rodF, the lower end of said rod engaging the crank D of the fly-wheel D on the main shaft. It will be noticed that one of these cranks is set ninety degrees in advance of the other, so that while one of the cranks is passing over its dead-center the other will always be in position to exert the greatest power upon the load. If three Wheels with driving-cranks are used, the cranks are then set at an angle of one hundred and twenty degrees to each other, so that the force exerted upon the main shaft to revolve the same will remain practically constant whatever the position of the difierent cranks with reference to their deadcenters maybe.

The walking-beam is preferably operated from its end opposite that carrying the wristpins B I In order to adapt a long beam, as I have shown, to be operated by an engine of comparatively short stroke, I employ the construction illustrated in Fig, 1, in which A is a bracket forming a support for the bellcrank lever G, said support being securely riveted to the tower A and having pivotal connection for the bell-crank lever at G. The said lever has the short downwardly-extending arm G and the longer arm G3 at right angles to the arm two arms areunited by the brace-section G The pitman or piston-rod H of the engine has pivotal connection with the lower end of the short arm G2 of the bell-crank lever, while the longer arm G3 of said lever carries at its outer end the connecting-rod I, which forms the connection between the bell-crank lever and the walking-beam.

When my invention is used in the propulsion of ships, I provide the means illustrated in Fig. 1 for steadying the walking-beam when the ship is rocked in a rough sea. Said Atits center the G The outer ends ofthese means consists of the transverse guide-bar B, rigidly secured to the end of the walkingbeam adjacent the fly-wheels and having bifurcated ends carrying the friction-rollers B adapted to travel in the channels B which are suitably disposed with reference to the walking-beam and are of a curvature corresponding to the arc of a circle described by the end of said beam when in operation. These channels are parallel to each other and are rigidly secured to the ship, so that they only move as it moves. On the top side of the half of the walking-beam adjacent the engine is the counterbalance-weight, preferably in the form of a car J, adapted to be moved longitudinally on said beam to produce an equilibrium of lever-power between the engine and the work, thus insuring a more steadyand even movement of the machinery. When the load is such that the weight of the car itself is not suflicient to produce this effect, weights may be placed within it. For lighter machinery, where the variation of load is not so great, a solid block of iron adjnstable on the beam in the same way that the car is adjusted will ordinarily be sufficient 'for every requirement. The carJmoves upon flanged rails J, secured, preferably, by bolts J to the walking-beam. The flanges of these rails extend inwardly from their tops and engage a cooperating flanged section J carried by the bottom of the car. Intermediate the section J and the car J is the spacing or separating section J which elevates the top section of the car sufiiciently above the rails to prevent it from contacting with the bolts J". The flanged section J of the car may, if preferred, simply consist of a transverse bar socured to the section J at each end of the car, as indicated in dotted lines in Fig. 4. The section J of the car isprovided with a th readed aperture designed to receive the threaded shaft J having at its outer end the operating hand-wheel J. This shaft is mounted in suitable bearings at each end, so that the car maybe moved in or out by revolving the handwheel.

The main shaft of the mechanism herein shown (see Fig. 2) is provided with a crank K preferably midway between the fly-wheels, and to this crank is connected the machinery to be operated upon by my device, provided said machine is of the nature of a pump requiring a reciprocating movement to be imparted thereto. The said main shaft Ois also provided with the band-wheel L for forming the connection between my device and such machinery as is to be operated by belts.

It should be borne in mind that myso-called walking-beam is of the nature of a lever, its center representing the fulcrum, the work done and the machinery operated by the wristpin the weight, and the end with the car the point where power is applied.

Usually the wrist-pin is removed from the center of the levera distance equal to the radius of the fly-wheel, while the length of the lever is usually equal to about twice the diameter of the fly-wheel.

When very long levers are required, they may be made in sections suitably secured together by bolts. I prefer that each section shall consist of a single piece of wroughtsteel the full length and width of the lever and that a sufficient number of these shall be bolted together to give the required thickness and strength. For small sizes the levers may be made of solid cast-steel.

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

1. An apparatus for evenly delivering the power of an engine or other motor to its work comprising suitably-braced towers, shafts at the tops of said towers,walking-beams mounted on said shafts,a main drive-shaft,fly-wheels on said shaft, cranks on said shaft, disposed at angles to each other, connecting-rods for uniting said cranks with their respective walking-beams, a crank on the main shaft for connecting with the work, a pulley on said main shaft for the same purpose, a bell-crank lever having a long and a short arm, a bracedv support, projected from the side of the tower for said lever, a connecting-rod uniting the longer arm of the bell-crank with the walking-beam, means at the end of the short arm for connecting with the engine from which power is derived, flanged rails upon one end of the walking-beam, a counterbalancing-car adapted to move longitudinally on said rails, and a threaded shaft jonrnaled to the beam and adapted to move said car longitudinally, all arranged as specified and for the purpose set forth.

2. An equalizing mechanism for motors including a pivoted lever interposed between the motor and its work, said lever having at one end a guide mechanism comprising a guide bifurcated at its ends, rollers carried in said bifurcated ends, channel-irons parallel with each other and curved to conform to the are described by the end of the lever, said channel-irons being designed to cooperate with said rollers to form guides therefor.

3. An equalizing mechanism for motors, a main shaft, a plurality of cranks at angles to each other u pon said shaft, walking-beams, a suitable tower upon which each of said beams is mounted, bell-crank levers, each having a long and a short arm, a braced support upon each tower for supporting said levers, connecting-rods for uniting the longer arm of each of the bell-crank levers to their respective beams at one side of the fulcrumpoint of said beams and for connecting the cranks on the main shaft to the'other side of their fulcrum-point, and adjustable means carried ,upon one end of said lever for counterbalancing the power of the motor exerted upon the work through said lever as specified and shown.

4:- An apparatus for balancing its power to the work to be done,.comprising levers or said beams at.

walking-beams, towers on which the levers right angles to each other, connecting-rods are mounted, flanged rails on said levers, between said cranks on the main shaft and weights adapted to move longitudinally on the walking-beams, fiy-wheels on said shaft,- said rails, a threaded shaft journaled to each said shaft adapted for pulley connection with lever and adapted to move the weight theremachinery to be rotated by belt, and for crank on longitudinally to produce an equilibrium connection with machineryto be reciprocated, between the lever-power and work,bell-cranks as specified and for the purpose set forth. each having a long and a short arm, the latter adapted for connection with the motor, a JAMES HANSON HUSSEY' connecting-rod uniting the longer arm of each Witnesses: bell-crank with the lever or walking-beam, a

WALTER E. LEIGH, main shaft, said main shaft having cranks at i E. M. HEYBURN.

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