US369233A - salmon - Google Patents

Description

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MN E m V. 0 M L &A m MA M PB BM H m d O M 0 m No. 369,283. Patented Aug. 30, 1887.

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' E. B. COXE & S. SALMON.

MECHANICAL MOVEMENT.

PatentedAug 30, .1887;

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E. B. OOXE & s. SALMON. MECHANICAL MOVEMENT.

No. 369,233. 3 Patented Aug. 30, 1887.

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UNITED STATES PATENT OFFICE.

EOKLEY B. OOXE AND SAMUEL SALMON, OF DRIFTON, PENNSYLVANIA; SAID SALMON ASSIGNOR TO SAID COXE.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 369,233, dated August 30, 1887.

' Application filed April 25, 1887. Serial No. 236,012. (No model.)

To all whom it may concern:

Be it known that we, EoKLEY B. COX E and SAMUEL SALMON, of Drifton, in the county of Luzerne, and in the State of Pennsylvania, have invented certain new and useful Improvements in Mechanical Movements; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which Figure 1 is a perspective view of a plate which is supported by and horizontally movable upon our improved bearings. Fig. 2 is an enlarged perspective view of the roller and one of the bearings which are preferably employed, said parts being separated from each other. Fig. 3 is a side elevation of the same, with its bearings in section; and Figs. 4 and 5 are like views ofmodifications of said parts.

Letters of like name and kind refer to like parts in each of the figures.

In the use of screening apparatus and in various kinds of mechanismit is desirable that a horizontal gyratory motion should be produced, and for such purpose the part to be u gyrated has heretofore been suspended by chains or upon pivoted bars; but in each instance the result has been that the part gyrated had more or less vertical motion and that a considerable amount of friction and wear was caused to the bearing or suspensory parts. To obviate these obj ections is the design of our invention, which invention consists, principally, as an improvement in mechanical movements, in two relatively movable parts which have parallel inner faces, in combination with a double cone that is placed between and has rolling contact with the inner faces of said parts, and is adapted to furnish a rolling gyrating bearing and support for the upper part, substantially as and forthe purpose hereinafter specified.

It consists, further, as an improvement in mechanical movements, in two relatively movable parts whichupon orwithin their parallel inner faces are each provided with a circular track or bearing, in combination with a double cone that is placed between and has rolling contact with said tracks, and is adapted to furnish a rolling gyrating bearing for the upper part, substantially as and for the purpose hereinafter shown.

It consists, further, as an improvement in mechanical movements, in two relatively movable parts which have parallel inner faces, and are each provided within or upon its inner face with a circular guide track or hearing, in combination with a double cone that is placed between and has rolling contact with each of said faces and guidetracks, and is adapted to furnish a rolling gyrating bearing for the upper part, substantially as and for the purpose hereinafter set forth.

7 It consists, further, as a means for enabling a relatively gyratory motion to be produced between two parts which have parallel inner 1 faces, and in combination therewith, a double cone that is placed between and has rolling contact with said faces, substantially as and for the purpose hereinafter shown and described.

It consists, further, as a means for supporting a part parallel with and enabling the same to be gyrated over a relatively stationary part, in the combination therewith of two or more double cones which are placed between and have rolling contact with the contiguous parallel faces of said parts, substantially as and for the purpose hereinafter specified.

It consists, further, as a means for supporting a part parallel with and gyrating the same over a relatively stationary part, in the combination therewith of two or more double cones that are placed between and have rolling contact with'thc contiguous parallel faces of said parts, and a crank which engages with said relatively movable part and operates to move the same bodily in a circular plane, substantially as and for the purpose hereinafter shown.

It consists, further, as a means for supporting a part parallel with and enabling the same to be gyrated over a relatively stationary part without change of circumferential position, in the combination therewith of two or more double cones that are placed between the contiguous parallel faces of said parts and have rolling contact with parallel circular guide-tracks which are provided upon or within each of said faces, substantially as and for the purpose hereinafter set forth.

It consists, finally, as a means for supporting a part parallel with and gyrating the same over a relatively stationary part without change of circum ferential position, in the combination therewith of two or more double cones that are placed between and have rolling contact with parallel circular guidetracks which are provided upon or within the contiguous parallel faces of said parts, and a crank that engages with said relatively movable part and operates to move the same bodily in a circular plane, substantially as and for the purpose hereinafter shown and described.

As the special organization to which our invention is applied forms no part of such invention, it will be sufficient to illustrate its operation in connection with a supportingtable that is adapted to receive any desired machine, which table consists of a rectangular plate, A, that has any required thickness and corresponds in general size and proportions to the like features of a second plate, B, which is supported in a horizontal position and is usually fixed in place.

Near each corner upon the upper face of the base-plate B is secured a circular plate, 0, which at a point midway between its center and periphery is provided with an annular flange, c, that extends upward and in crosssection has the form of an inverted letter V, with the point preferably cut away, so as to produce at such point a horizontal bearing.

Upon the plate 0 is placed a double cone, D, which within each of its conical faces (1 is provided with a circumferential groove, d, that transversely corresponds to the shape and size of the flange 0, so that when said cone is placed upon the circular plate 0 its point will coincide with the axis of the latter and its face will rest upon the face of said plate upon each side of said flange, and its said groove will fit over said flange with the sides of said parts in contact, as shown in Fig. 3. If, now, said cone is rotated, it will roll around said flanged plate without change thereon of radial position, and its entire bearing-surface will have contact with the corresponding surface of said plate without slipping and with no friction other than such as is produced by the rolling together of two surfaces.

The plate or table A is provided with four of the circular flanged plates 0 and G, which are attached to the lower face of said table in positions that correspond tothe positions of the like plates upon the base 13 and rest upon and engage with the upper portions of the cone-rollers D, their bearings upon the faces of said rollers being precisely the same as in case of the lower portions of said cones and their plates. As thus arranged, the entire weight of the table is supported by the cone-rollers, and said table may be gyrated horizontally in either direction by applying sufficient power to overcome its inertia and cause said cones to roll around their lower tracks. As the axis of each cone is oblique to the plane of its track, it will be seen that when traveling around said track the central portion of said cone will describe a circle the diameter of which will determine the amount of movement of said table in opposite directions. As the contact of said cones with both series of bearingplates is a rolling contact, the friction caused by their movements is so slight as to render necessary for the movement of the table the expenditure of no appreciable amount of power over what would be required to effect such movement were said table suspended by the theoretically frictionless spring of a clockpendulum. By the employment of cones and bearing-plates having hardened surfaces the wear upon the same will become practically nothing,and the durability of the mechanism-- if breakage is prevented-will exceed that of any possible construction in which there is sliding contact between the bearing-surfaces.

The movement of the table A is preferably secured by means of a crank, E, which has its shaft journaled at or near the center of the base B, and has its upper end or pin, 0, journaled within the center of said table. The throw of the crank coincides with the oscillations of the cone-rollers D and D, so that said crank is subjected to no strain other than such as is necessary in order to start said table and keep it in motion. Any desired means may be employed for rotating said crank-shaft; but a belt and pulley are preferably used.

The annular flanges c of the plates G operate to prevent radial displacement of the conerollers and are preferably employed; but such result can be attained by other forms, if desired. In Fig. 4 is shown a modification in the construction of said parts, in which the roller has plane conical faces d and d and a cylindrical periphery, (1, while the bearingplate has a plane face surrounded by an annular flange, c, that has a face, 0', which inclines upward and outward at the precise angle necessary to enable it to receive rolling contact from the periphery d of said roller.

In Fig. 5 is seen another modification, in which the faces (Z and d of the roller are plane, and at the end or apex of each is provided a small cylindrical boss, d, that is in a line axially with the axis of said roller and terminates in a cone, d, as shown. The bearing-plate C has a plane upper face, and at its center is provided with a cylindrical recess, 0, which is in a line axially with the axis of said plate, and has such size as to enable it to receive the boss d and enable the conical end (2 of the same to bear against and have rolling contact with its sides, as shown.

Having thus thus described our invention, what we claim is-- 1. As an improvement in mechanical movements, two relatively movable parts which have parallel inner faces, in combination with a double cone that is placed between and has rolling contact with the inner faces of said parts, and is adapted to furnish a rolling gyrating bearing and support for the upper part, substantially as and for the purpose specified.

2. As an improvement in mechanical movements, two relatively movable parts which upon or within their parallel inner faces are a each provided with a circular track or bearing, in combination with adouble cone that is placed between and has rolling contact with said tracks, and is adapted to furnish a rolling gyrating bearing for the upper part, substantially as and for the purpose shown.

3. As an improvement inmechanical movements, two relatively movable parts which .have parallel inner faces and are each procombination therewith, a double cone that is placed between and has rolling contact with said faces, substantially as and for the purpose shown anddes'cribed.

5. As a means for supporting a part parallel with and enabling the same to be gyrated over a relatively stationary part. the combi nation therewith of two or more double cones which are placed between and have rolling contact with the contiguous parallel faces of said parts, substantially as and for the purpose specified.

6. As a means for supporting apart parallel with and gyrating the same over a relatively stationary part, the combination therewith of two or more double cones that are placed between and have rolling contact with the contiguous parallel faces of said parts,and a crank which engages with said relatively movable part and operates to move the same bodily in a circular plane, substantially as and for the purpose shown.

7. As a means for supporting a part parallel with and enabling the same to be gyrated over a relatively stationary part without change of circumferential position, the combination therewith of two or more double cones that are placed between the contiguous parallel faces of said parts and have rolling contact with parallel circular guide-tracks which are provided upon or within each of said faces, substantially as and for the purpose set forth.

8. As a means for supporting a part parallel with and gyrating the same over a relatively stationary part without change of circumferential position, the combination therewith of two or more double cones that are placed between and have rolling contact with parallel circular guide-tracks which are provided upon or within the contiguous parallel faces of said parts, and a crank that engages with said relatively movable part and operates to move the same bodily in a circular plane, substantially as and for the purpose shown and described.

In testimony that we claim the foregoing we have hereunto set our hands this 7th day of April, 1887.

EOKLEY B. OOXE. SAMUEL SALMON.

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