US596075A - Russell marvin - Google Patents

Description

(No Model.)

R. MARVIN. BGGENTRIG.

No. 596,075. Patentedne. 28,1897.

C I F695 RUSSELL MARVIN, OF FINDLAY, OHIO, ASSIGNOR OF ONE-HALF TO S. N. E. PRIDDY, OF SAME PLACE.

ECCENTRIC.

SPECIFICATION forming part of Letters Patent No. 596,075, dated December 28, 1897.

Application led July l, 1895. Renewed May 3, 1897. Serial No. 634,967. (No model.)

To all whom it may concern: Be it known that I, RUSSELL MARVIN, a citizen of the United States, residing at Findlay, in the county of Hancock and State of Ohio, have invented a new and useful Eccentric, of which the following is a specification. My invention relates to improvements in eccentric-s used for the transmission of power, in which an eccentric inner wheel operating by revolution upon a proper inclosing but non-rotating ring communicates thereto at all points an oscillatory motion, so that it may be transmitted in any direction directly by attaching at any point in said ring a suitable Inechanical device for the purpose desired.

The objects of my invention are, iirst, to make convenient the transmission of the power developed by such oscillatoryv motion in any direction in the plane of the eccentric; secondly, to provide a friction-roll bearing continuously lubricated between said eccentric and such inclosing ring, and, thirdly, to provide, when such mechanism is used in horizontal planes or in planes oblique to the horizon,

Va horizontal bearing between such eccentric wheel and'inclosing ring by means of travelers working upon aproper extension of said eccentric wheel and carrying the vertical load of said ring, and to so provide such travelers as not to interfere with the continuous lubrication of the face of the friction-rolls through the inclosing flange of said ring. I attain these objects by means of the mechanism illustrated in the accompanying drawings, which are here referred to and made a part of this specification, in which- Figure l is a plan view of the eccentric wheel from the upper side, with the frictionrolls upon it and the inclosing ring removed. Fig. 2 is a plan view of the lower side of the inclosin g ring; and Fig. 3 is a cross-section of the eccentric wheel and the inclosing ring when iitted together with the rolls in place between them, as in operation.

Similar letters refer to similar parts throughout the several views, and the parts as shown are with reference to an eccentric in a horizontal plane.

In the various gures, A represents the entire eccentric wheel with its various parts otherwise lettered, as noted below.

O is the eccentric axis or center.

In like manner B represents the inclosing rin g with its parts otherwise lettered. A, preferably cast solid, is provided with the flange F, the outside face of which forms the bearing of A upon the friction-rolls D. Extending from the lower side of A and beyond the flange F is the projection G, provided on its upper side with the oil-groove K, outside of which is a suitable bearing O for the lower ends of the rolls D when used in a horizontal position or in any position out of the vertical. Gr also has outside of the track O a suitable track L for the travelers E, which bear the vertical burden of the ring B, as hereinafter noted. B is provided with the flange H upon its under side, the inside face of which is its bearing on the rolls D. B is also provided with any convenient number of travelers E, preferably three, to carry its weight and minimize the friction of its contact with A. The travelers are conveniently hung upon axles mounted in H and in some convenient projection, as N, through which axles pass oil-ducts M for lubricating the face of the rolls D. The upper horizontal part of B should extend in from H far enough to cover the flange F of A, thus forming a chamber inclosing the friction-rolls D, holding them in place and protecting them from dust or other improper matter. Upon the circumference of B at any point and at as many points as desired may besuitable bearings I to engage any suitable device for the transmission of power.

Arranged for operation the parts are as follows: A being properly hung upon its shaft O, with the iiange Gr on its lower side, the friction-rolls D are placed on end on the bearing O on G and against the face of the flange F. B is then placed over A, inclosing the rolls D by flange H and resting on G by means of the travelers E upon track L. In rotation the oil-ducts passing through the axles of E permit continuous lubrication of the faces of D and are not interfered with by the movement of the travelers E. Any surplus fluid used in lubricating or cleaning D is convenientlyk drained yoff by the groove K, which for the purpose may be furnished with a drip. The diameter of B between the inner faces IOO of II is slightly greater than the diameter of A from the faces of F plus the diameter of the rolls D. The parts being thus placed for operation,`A in rotating` upon its eccentric-axis C communicates to all points of B an oscillatory motion equal to twice the cccentricity of A.

Although I have described my improvement as applied to a machine used in a horizontal plane or one practically so, it may with such slight variation of form as will suggest itself to any practical machinist be applied to eccentric inotion in any plane, vertical or otherwise.

I am aware that prior to my invention eccentrics have been used having both roller and ball bearings between the eccentric wheel and the encircling strap or ring. I therefore do not claim novelty in such a combination broadly; but,

Having thus described my invention so that any one skilled in practical mechanics may make and operate it, what I claim as novel, and desire to secure by Letters Patent, is"

l. In an eccentric, the combination of an eccentric body, having a flange G, a ring B su rron ndin g said eccentric body, friction-rolls D interposed between said eccentric and ring, and travelers E mounted upon and supporting said ring, and traveling upon said flange

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