US113728A - Improvement in shaft-couplings - Google Patents

Description

duidt rzte tiene ermj JAMES BLESSING, 0F ALBANY, NEW YORK, ASSGNOR T0 HIMSELE AND TOWNSEND & J AGKSON, @ESAME PLACE. l

Letters Patent No. 113,728, dated April 18, 1871.

IMPROVEMENT IN SHAFT-COUPLINGS.

The Schedule referred to in these Letters Patent and making of the same.

T o all whom t may concern Be it known that I, J AMES H. BLEssING, of Albany, in the county of Albany and State of New York, have invented a new and improved Coupling for Shafting; and Ido hereby declare that the following is a full, clear, and exact description thereof, reference being had'to the accompanying drawing making part of this specification, in whichv Figure-'1 is a side view of two sections of shafting connected together by my improved plan. g

Figure 2 is a diamctrical section Vthrough the same.

Figure 3 is a cross-section.

Figure 4 is a perspective view of the gib or coupling-plate.

liigure 5 is a perspective of the end of one of the shaft sections.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to an improved mode of connecting sections'of shafting, and consists in the combination of a gib, a sleeve, and a key with shafts, the ends of which are slotted transversely at f and diametrically at a.

The transverse slots f intersectthe diamet'i-ical slots a at right angles, as shown by iig. 5.

G represents a gib or coupling-plate which exactly fits into the two diametrical slots, al a, of the two shafts, A A, and which is constructed with segments g g on two of its corners on the same edge, which exactly tit into the transverse grooves f of the two shafts.

The plate Gr is wider than the diameter of lthe shafts A A, as shown in figs. 2 and 3, and is received into a groove, c, which is made longitudinally into a tapering key, C

This plate G with its segments and projecting portion prevents the two shafts from separating longitudinally, and it prevents the shafts from being twisted at their joint under ordinary strain. lhe Hat portion of the gib G prevents the shaft-s from being twisted about their axes, while the segments y g prevent sep- :tration of the shafts endwise.

In addition to the gib I employ a very. strong sleeve, B, and a key, O.'

The sleeve B is bored through centrally to receive the ends of the two shafts, A A, and this bore through the sleeve is slotted on a taper lettered b, to

quently the key cannot be removed from its place While it is inelosed by th'e collar B. A g

rlhe key 0 not only receives the projecting end of the gib G but it enters a tapering groove in the sleeve B, and when driven home prevents this sleeve from slipping from its place endwise.

It will .be seen, from the above description, that when the key O is driven home the strain of torsion on the shaft will be transferred in a great measure to the collar or sleeve B, which is made strong enough to resist any strain which the solid portions of-the shaft would sustain.

It will also be seen that the termination ofthe key-slot c at e prevents this key from being withdrawn while the sleeve B covers the end of the gib. Y

It will also be seen that the transverse segments g g on the gib G, when fitted into the transverse grooves ff iu the ends of the two abutting shafts, A A, will prevent these shafts from endwise movement.

Having described my invention,

A shaft-coupling consisting of a gib, G, a slotted key, C, and a sleeve, B, applied to shaft-sections, and constructed substantially as described.

-JAMES H. BLESSIN,G.

Witnesses A. l?. STEVENS, J. A. REED.

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