US1114123A - Threadless nut or collar. - Google Patents

Description

H. DALTON. THREADLBSS NUT 0R COLLAR. APPLICATION FILED PEB.'7, 1914.

1, 1 1 4, 1 23. Patented Oct. 20, 1914.

WITNESSES: a

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HUBERT DALTON, or NEW YORK, N. Y.

THREADLESS NUT OR COLLAR.

Specification of Letters Patent.

Patented Oct. 20, 1914..

Application filed February 7, 1914. Serial No. 817,148.

more particularly aims to provide improved means for quickly detachable adjustment upon a cooperant support to the end that the said means when so adjusted may act as a stop or retaining member in a variety of situations. e

The present invention is particularly valuable in providing an instrumentality forassociation with a revoluble shaft, or with a fixed shaft upon either of which is suitably mounted a revoluble member as a gear or pulley, to the end that when so associated said instrumentality may prevent a displacement of said revoluble member longitudinally of its shaft.

A cardinal object of the invention is to provide an embodiment thereof which will be cheap and simple in construction, having few parts and those few parts Simple and ments ofthe latter.

easily formed, and which will be convenient of mounting and demounting, and reliable, efficient and .safe in performance.

An important object of the invention is to disclose an embodiment which when mounted upon said shaft or the like will not be keyed thereon, but which, on the other hand,

.even while performing its appointed duties with absolute positiveness, will not be carrid for revolution by said shaft and will remain immovable during the turnin move- This is an en which has been a heretofore existing desideratum, on account of the fact that the retaining nuts or the like in the past employed in connection with high-speed machinery have carried projecting parts or conformations; these conformations, due to the simultaneous rotation of each such niit and its support, having constituted an always present source of danger toany person in the vlcinity.

Otherobjects and aims of the invention,

' more or less broad than those stated above,

together with the advantages inherent, will be in part obvious and in part specifically referred to in the course of the following description of the elements, combinations, arrangements of parts, and'applications of principles constituting the invention.

Referring now to the accompanying drawing, which is to be taken as a part of this specification, and wherein-is shown a possible embodiment of this invention as at present preferred, Figure 1 is an end elevation, partially broken away, of said embodiment, looking toward the terminus of the shaft upon which the retaining member is mounted; Fig. 2 is a perspective 'view of the parts shown in full-lines in Fig. 1; and Fig. 3 is a vertical sectional view, taken on the line 66 of Fig. 1.

Similar reference characters refer to similar parts throughout the several views of the drawing.

I will now describe with particularity the device of thedrawing, reserving it to the claims to define the scope of the invention, it being understood that these claims will be given due range of equivalents.

Referring now particularly'to Figs. 1, 2 and 8, the reference numeral 8 may representin the present instance a revoluble driving shaft, adapted to have detachably adjusted thereon, for revolution therewith, a suitable pulley or the like. The main body of the shaft here merges into a reduced integral endortion 9. End-portion 9 is provided exterlorly with an annular groove 10.

' This end-portion preferably carries a spherical end-face 9'. A member 18,-which may be termed a threadless nut, is adapted to be sleeved upon end-portion 9' as shown.

slots 19 the bottom walls of which if prolonged as indicated in dot-and-dash lines in Fig. 1 would preferably converge. The slots 19 are so cut as to break into the bore of the nut 18, and consequently when nut 18 is properly positioned on end-portion 9 to afford a' plurality of openings communicatin with the interior of the groove 10. A lea spring 20 generally U-shaped as shown, and

which carries a crimp or upstanding portion Nut' 18 carries exteriorly a plurality of straight 20 and whose legs 20 nut 18 upon the end-portion 9 in a Well undental drag turning from the scope thereof,

derstandable manner. associated with said 2, at the proper time to ment of the crimp 20.

Having described this embodiment of the invention, the operation thereof may now be understood. I

It will of course be appreciated that the present invention will be of great value, for instance, when associated with a lathe or the like when the shaft 8 is adapted to carry one of an interchangeable plurality of gears or pulleys; and the same remarks may as well apply to anyiother'embodiment of the invention. Assuming that a pulley or the like is selected for tempora drive upon and by the sha ft-8,' and assumlng further that the nut 18 and its leaf-spring 20 is preliminarily removed from the end-portion 9 6f the shaft, the aforesaid pulley or the like is suitably positioned upon the shaft and' thereupon the nut 18 is adjusted into its locked engagement with said sha'ft preferably by, first, advancing the nut longitudinally of the endportion 9 and toward the main body of the shaft, and, next, by mounting the leaf-spring 20 as shown in Fig. 1. Upon a drive being imparted to the shaft 8, the aforesaid pulley, of course, being driven ,with it, the nut 18, while efiective to prevent a longitudinal displacement of the pulley upon its shaft, is not necessarily rotated with said shaft, since as shown the legs 20 preferably in slight frictional contact with the bottom of the slot 10. Should an accibe imparted to said nut, however, the crimp 20 will come into abutment with stop-pin 16 and prevent any further movement of the nut; thus preventing injury to any operator or operators coming into proximity to the turning parts.

t will thus be seen that therehas been provided an embodiment of this invention well adapted to attain the various ends, objects and advantages set forth and apparent hereinabove; an embodiment which, more over, possesses marked superiority in the matters of reliability, efliciency, simplicity and cheapness of construction, and safety.

Inasmuch as'many changes could be made in the above construction, and many apparently widely different embodiments of my invention could be made without departing it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense. It is also to be under- ,stood that the language used in the following claims isintended to cover all the generic and specific features of the invention A stop-pin .16 may be nut 18 as shown in Fig. arrest further moveof leaf-spring 20 are,

and 0 herein described and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

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1..In .a device of the class described, a shaft having formed in the cylindrical surface thereof an annular groove, a cylindrical nut mountable upon said shaft to overlie said groove, said nut having a pluralit of channels cut in its outer cylmdrical sur ace, one of said channels having a straight bottom and being so deep that it cuts through and opens into the bore of the nut, !both of said channels being non-parallel and cut in a common plane normal to the axis of the bore of the nut, and a single resilient generally U-shaped bent-wire locking member so conformed that sertible in said channels so that by virtue of the resiliencyof said member and the nonparallelism of said channels said member when thus inserted in said channels is prevented from accidental'disengagement from the nut, the portion of said member which lies in the bore-intersecting channel being adpated to enter the shafts annular groove when the said bore-intersecting channel overlies any portion of said annular groove, said locking member carrying a portion which projects from the outer cylindrical surface of the nut and which is manipulable to displace from its normal engagement with said annular groove the portion of said member which lies in the said bore-intersecting channel so that said demounted from or shaft.

2. In a device of the class described, a shaft havin formed in the cylindrical surface thereo an annular groove, a cylindrical nut mountable upon said shaft to overlie said groove, said nut having a plurality of nut may be readily mounted upon said channels cut in its outer cylindrical surface,

one of said channels having a straight bottom, and being so deep that it cuts through ens into the bore of the nut, both of said 0 annels being non-parallel and cut in a common plane normal to the axis of the bore of the nut, and a single resilient generally U-shaped bent-wire locking member so conformed that the legs of the U converge more and more as they leave the bow of the U, said legs being readily insertible in said channels so that by virtue of the resiliency of said member and thenon-parallelism of the said channels said legs when thus inserted in said channels are prevented from accidentah disengagement from the nut, the le which lies in the bore-intersecting channe being adapted to enter the shafts annular groove when the said bore-intersecting channel overlies any portion of said annular groove, the bow of said locking member carrying a portion which projects from the portions thereof are readily inouter cylindrical surface of the nut and "In witness whereof I have hereunto signed which 1is manipulable to illisplaeie from 1its my name in the presence of two witnesses. norma engagement wit sai annu ar oove the le which lies. inthe said bore- HUBERT DALTON 5 mtersectin c annel so that said nut may In the presence ofbe readil emounted from or mounted upon MARY H. LEWIS, said she t. ALDA L. MILLER.

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