US1502492A

US1502492A - Lock nut

Info

Publication number: US1502492A
Application number: US555776A
Authority: US
Inventors: Frederick C Warne
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-04-20
Filing date: 1922-04-20
Publication date: 1924-07-22
Anticipated expiration: 1941-07-22

Description

July 22 192 1,502.492

F.c.wARNE LcK NUT Patented July 22, 1924.

stares FREDERICK C. WARNE, 0 F MANSFIELD5DHIO.

LOCK NUT.

Application filed Apri120, 1922. Serial No. 555,776.

To all whom it may concern:

Be it known that I, FREDERICK C. WARNE, a citizen of the United States, residing at Mansfield, in the county of Richland and State of Ohio, have invented certain new and useful Improvements in Lock Nuts, of which the following is a specification.

My invention relates to improvements in lock-nuts, and more particularly to that class or type in which the nut is provided with a locking element or member adapted to be manually forced into seated or locked position in a lock receiving recess or opening in the bolt whereby to lock these parts as agamst relative movement or rotation.

My invention further relates to lock-nuts of the type or class exemplified in my reissued Patent No. 14,928 of July 27, 1920, and to certain improvements thereover 'as will hereinafter more fully appear.

The primary object of my invention is to provide a generally improved lock-nut of the class indicated which will be exceedingly simple in construction, cheap of manu facture, and efiicient in use.

A further and very important object is the provision of a bolt and nut in w hich the cooperating locking elements orfeatures thereof are so arranged and disposed relative to each other as to not only permit the normal locking of the nut in position with respect to the bolt but will permit the nut to be moved through the application offorce by a wrench whereby the locking element will be positively unlocked or unseated to assume a position above and to bemoved over the adjacent threads of the bolt .for removal of the nut or for the assumption of a new locking position as desired.

There are other features of the invention residing in elemental combinations and particular construction of parts, all as will be hereinafter more fully referred to.

With the above mentioned and other ends in view, the invention consists in the novel construction, arrangement and combinations of parts, hereinafter described, illustrated in some of its embodiments in the accompanying drawings and particularly pointed out in the appended claims.

Referring to the drawings, forminga part of this specification, Figure 1 is a side elevation, partly in longitudinal section, ofabolt and loclrnut, constructed in accordance with this invention and applied to two connected parts, the lock-nut losing shown in locked position.

2, an end elevation of the Same. Flg. .3, a side elevation of the threaded end of a bolt,'a portion beingbrokenaway to more clearly show the details of the lock receiving recess.

Fig. .4, an endview of the same.

Fig. 5, a side elevation, partly in section, of a bolt and nut showing another modification or embodiment of the invention.

Fig. 6, an end view of the same, with oppositely disposed. locking elements or members in locked engagement with opposite portions of a modified form of lock receiving recess.

Fig. 7, an end view illustrating a further modification ofa lock receivingrecess in thethreaded end of the shown in seated or locked position.

bolt, the locking element of the nut being:

Similar numerals of reference designa e like parts throughout all the g-figures ofthe drawings.

The bolt 1, and bolt 1 may be of any suitable and convenient construction and so likewise as to the general form or type of the body 2, of the lock nut.

As a means of providing the nut 2 with a plurality of regularly spaced and formed locking elements or fingers 2, adapted to be seated'in and to interlock with a suitable lock receiving recess or opening in the adjacent threaded portion 1", of the bolt as hereinafter referred to, and alsoproviding the interior of such locking elements or fingers 2* with threads corresponding to the threads in the bore of the body of the nut, the latter is preferably provided with an internally threaded cylindrical section 2,

the latter being preferably of less external diameter than the minimum transverse external diameter of the body 2 of the nut, so that the locking elements or fingers will not project beyond the outer periphery of the of a bolt and nutreceiving recesses, as shown in Figs. 5 and 6 of the drawings, and in which instance, the outer surfaces of the cylindrical section 2 are initially bevelled toward the outer edge for the purpose of forming corresponding bevelled surfaces on the fingers, as illustrated in Fig. 5 of the drawings.

As a means of dividing the cylindrical section 2 into a series of locking elements or fingers 2 and particularly as a means of forming such locking elements with wedge shaped sides to cooperate with similarly inclined or wedge shaped lock receiving recesses in the bolt in the locking and unlocking operation, the cylindrical section 2 is provided with suitably spaced radially extending slots or recesses and the lock receiving recess 1, is provided with correspondingly formed and inclined sides 1 which, it will be seen upon reference to Figs. 2 and 4: of the drawings, are at a considerable angle or inclination. The relative arrangement and disposition of the sides of the locking elements or fingers 2 and of the sides 1 of the recesses 1 are such that when a locking element 2 is in seated or locked position,-as shown for example in Figs. 1 and 2 of the drawings, the coaction of such inclined portions will, upon the application of force by a wrench to the nut body 2, cause the locking elements 2 to be forced out of such recess into an unlocked position and to ride over the adjacentthreads of the bolt for the removal ofthe nut'or for the assumption of a new locking position as desired.

In the form shown in Figs. 1 to 4 inclusive of the drawings the lock receiving recess 1 is provided with a rearwardly inclined bottom portion 1, the outer portion intersecting the end 1, of the threaded end of the bolt as well as the threaded portion of the bolt which normally rests beneath the locking elements 2 In the form shown in Figs. 5 and 6 of the drawings, the lock receiving recess is in the specific form of a slot 1 which intersects o posite threaded portions of the bolt dividlng such threaded portion of the bolt into bifurcations or branches 1 said slot, in the present instance, extending to a depth corresponding substantially/to the depth or length of the tapered locking elements 2*. In such instance one of the looking elements or fingers 2 may. be bent down into the recess or slot 1- a'substantial distance and it will also be obvious that the unobstructed end of the slot 1 offers free access for the use of a. suitable tool for ejecting the tongue or finger 2 in the unlocking operation, it being obvious that when such locking element is bent down, as shown in the upper portion of Fig. 6 of the drawings, that the automatic return of such element by the application of force the drawings.

As a further modified form of lock receiving recess or opening in the bolt, a relatively wide and relatively fiat recess 1 as shown in Fig. 7, may be provided, and in which instance a right angled shoulder 1 is provided to prevent retrograde movement of the nut and an inclined'shoulder 1, at the opposite side is provided. In thisinstance also the locking element 2 may be unseated by the return movement of the nut through the application of a wrench, the inclined portion of the finger 2* being adapted to ride over the shoulder 1 or if moved forward a sufficient distance the inclined shoulder 1 will engage with the similarly inclined side of the locking element 2 in an obvious and a well understood manner.

From the foregoing description taken in connection with the accompanying drawings, the operation and advantages of my invention will be readily understood.

Having thus described some of the embodiments of my invention, without having attempted to set forth all the forms in which it may be made, or all the modes of its use, what I claim and desire to secure by Letters Patent is,-

1. A lock-nut having an interiorally threaded cylindrical section divided into a plurality of regularly spaced longitudinally tapered wedge shaped locking fingers.

2. A lock-nut having a cylindrical extension threaded on its interior corresponding with the threads in the body of the nut and divided into a plurality of longitudinally tapered bendable fingers having wedge shaped sides.

8. A lock-nut having a cylindrical axial extension threaded on its interior corresponding with and forming a continuation of the threads in the bore of the nut and divided into a plurality of longitudinally tapered parallel extending bendable fingers having radially diverging sides. I

4. In a nut and bolt lock, a threaded bolt having its outer terminal threads intersected by a longitudinally extending wedge shaped recess having a rearwardly inclined. bottom portion, and a lock-nut having longitudinally extending locking fingers provided with wedge shaped sides adapted'to be wedged and seated in said wedge shaped recess the inclination of the sides of said fingers and of the walls ofsaid recess being such as to normally look the nut in position on the threaded bolt and to permit the nut to be moved through the application of force by a wrench whereby the engaged locking finger will be unseated by riding over the adjacent inclined side of the recess and will be moved about the threads of said bolt.

5. In a nut and bolt lock, a threaded bolt having its outer terminal threads intersected by a longitudinally extending recess opening from the outer end of the bolt, and a lock-nut having an axial cylindrical extension divided into a plurality of regularly spaced longitudinally tapered wedge shaped locking fingers adapted to be wedged into and seated within the longitudinally extending recess, the inclination of the Sides of said wedge shaped locking fingers relative to the walls of such recess being such as to normally lock the nut in position and permit the same to be moved through the application of force by a wrench whereby the engaged locking finger will be unseated by the coaction of the inclined sides of the finger with the adjacent portion of the recess causing the finger to ride upon and be moved about the threads of said bolt.

6. In a bolt and lock-nut, a bolt having a threaded portion intersected by a lock receiving recess extending longitudinally from the outer end of said bolt and through the outer terminal threads thereof only, said recess having a circumferentially inclined portion and a lock-nut including equally spaced similarly shaped locking elements having beveled side portions adapted to be seated in said recess and to coact with said circumferentially inclined portion whereby said locking elements may be selectively driven into and seated in said longitudinal recess to lock said bolt and nut against relative movement therebetween and whereby said seated locking element may be unseated and moved into nut unlocking position through the coaction of the beveled side portion of said locking element with the circumferentially inclined portion of said recess upon'the application of positive nut rotating force upon said nut.

In testimony whereof I have afiixed my signature,

FREDERICK WARNE.