US65821A - William e - Google Patents

Description

@einen grains atwt @ifi-r2' WILLIAM E. LONDON AND JOHN RICHARDSy CINCINNATI, OHIO. Letters Patent Na. 65,821, dated June 18, 1867.

IMPROVEMENT IN SHAIT-GOUPLING.

T0 ALL WHOM IT MAY CON'CERN:

Beit known that We, WILLIAM E. LONDON and JOHN RICHARDS, of Cincinnati, in the county of Hamilton. and State of Ohio, have invented a new and improved Coupling for Shafts; and vie do hereby declare the following to be a full and exact description of the same, reference being had to the drawings, accompanying and forming part of this specification, in which- Figure 1 is a side elevation.

Figure 2, a longitudinal section.

Figure 3, an end view; and

Figure '4, a transverse section through the centre.

-Similar letters of reference on the different figures indicate corresponding parts. The nature of this invention consists in a shaft-coupling, with two conical sleeves within two separate conical shells, arranged to act independently on the ends of separate shafts, and when bolted together forming a shaft-coupling for connecting shafts of different or the same diameters, as set forth and described in this specificaton.

This coupling belongs to that class of shaft-couplings Where a split conical sleeve orsleeves are used to clamp the ends o f shafts, so arranged as to be readily disengaged for mounting pulleys, or in removing a shaft or parts thereof. In couplings of this class, Where two independent conical sleeves have been employed, the outer shell or casing has been made whole and of a single piece, making the removal of the coupling necessary in transportation or in removing sections of the shaft. The arrangement here shown, in which the coupling is formed in two independent halves, enables the machinist to dt the coupling to the shaft and leave them duringl the erection or transportation of the shafts. Either shaft can be removed from the coupling without loosing the other, or both can be removed without separating the coupling, orthe coupling can'be unbolted and sepasr'ated in the centre, leaving each independent half attached to the ends of the shaft. Another peculiarity of a couplingso constructed, is that the internal compressing sleeves being drawn'or moved by means of a revolving" nut, and by means of a screw-thread on their periphery, cannot be made to spring or bend the shaft, as in the case of split sleeves moved by bolts, when the strain may fall unequally on the diderent sides or the sleeve, causing a bend in the shaft by such unequal strain.

To enable others skilled in the art to -make and use our invention, ive ivill proceed Ato describe the manner of its construction and mode of application, with the aid of the drawings.

The main parts of the coupling, consisting ofthe flanged hubs I: IJ, are not unlike the common flange-coupling and are bolted together in the same manner with flush bolts, as shown, or in any other manner to connect them firmly together. The hubs b b are bored larger than the shaft, and of taper form to receive the sleeves a a. These sleeves a a are made of wrought iron or other strong material, are bored to fit the shaft, 'and turned on their lexterior to lit Jthe conical bore in the hubs Z) b, with a parallel extension to receive the ring-nuts C C. These nuts are threaded. on the sleeves a a, and dran' them from the centre by Working against the hub b in the manner shown. 'lhe sleeves a a, when drawn from the centre against the taper on their exterior, are closed concentrically upon the shaft, clamping it firmly, and holding it for ordinary uses without the Vkey e. The sleeves a a are spl-it on one side, to admit of their being expanded and closed to rit shafts of different diameters, when such variation is slight; and can also be grooved at one or more points, as shown in iig. 4, to make them more flexible without altering their functions.

In applying the coupling, the ring-nut C is first put over thc end of the shaft, the main shell b is thenput on, and lastly the sleeve a. The end of sleeve C being set ilush with the end of the shaft, the shell is then put on'over sleeved, and the nut C turned on'the4 threaded extension, as shown in g. 2, forcingA hub on to sleeve a until the necessary pressure is secured. The coupling can then be bolted together in the same manner as a common flange-coupling. When a key, e, is used, the ends of the two shafts al d are brought together-after putting on the parts ofV the coupling; the sleeve a passing over this key, the di`erent ends are tightened in the same manner as before described. The key e can also be made to fit the slot or split in sleeve a, shown at g', fig. 4, or a corresponding mortise on the opposite side, so as to use the strength of sleeves a in communicating the force from one shaft to thc other. 4Either shaft can be removed from the coupling by loosing the nut C, or l both shafts can be removed Without separating the coupling in the centre. The coupling can also be separated by removing the bolts O O in the flanges, leaving each half upon` the shaft, and without loosing the cone-sleeves a a. The nuts C C a-re turned by a. wrench fitting into holes shown at a a.

Having thus described the nature of our invention, its inode lof construction and manner oil operation, we

u do not claim the use of a split cone or sleeve in :i shaft-coupling; but what we doclaim, and desire`to secure by Letters Patent, is-

The use of two conical sleeves within two separate conical shells, orrangeil to act independently on each shaft, and forming the two halves of a shaft-coupling, as herein setforgh and described.

W. E. LONDON, JOHN RICHARDS; Witnesses:

W. C. HARD, YW S. KELLEY`

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