US829209A - Nut-lock. - Google Patents

Description

No. 829309. PATENTED AUG. 21, 1906.

" EL HENRY & J. M. POWERS.

N UT LOOK.

APPLIGATION VE/VTORS FILED APR. 14, 1905.

F/ llV E5 FRANCIS M Wupg/ JOHN M. P0 R5 I BY flu! M M THE/R ATTORNEYS v of t e bolt, showing the flattened locking-suri Iran-TENT. oFrioE.

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. .n rseaece r I "rat oame April 14, 1905. Serial v4 'V v I l I vide the annular flange or ring 6 by .aws'er'ies '0 'aLbiU/umnit may concern: l f

f 1 Be "itfknown that we, FRANois HENRY nd' JoHN -POWERS, of Minneapolis, Henepihco 'u'1t'y,.- llfinnesota, have invented certain; new and useful Improvements in Nut- Loo of which the'following is a specifica- .The object of: our invention is to provide means fbrsecuring a nuton a bolt which will permit-the removal of the nut at anytime without the use of special tools.

A-further object is'to provide apinut-lock that will be simple and inexpensive to manufacture and one that will be strong and dura- He and easily and [quickly manipulated to In the accompanying drawings, forming part of this specification, Figure 1 1s a view of a bolt and nut, partially in section, showfiat surface of the bolt.

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ing the. position of the locking flange or ton es on the'nut. Fig. 2is'asectional view face thereon. Fig. 3 is a similar view Show ing the flange pressed down upon the flat sur face of the bolt. Fig. 4 is a sectional view showing a shoulder formed on one side of the Fig. 5 illustrates a locking-tongue pressed down upon the shoul- Fig. 6 is an enlarged sectional view showing the manner of raisin the tongue from the flat surfaceby parti'a ly revolving the nut. Fig; 7 is a similar view showing the locking-tongue raised sufficiently to clear the shoulder on the bolt.

In the drawings, 2 represents a bolt.'having threads 3 at one end and a flat surface 4, which on one side is rounded off and merges into the threads of the bolt, the other side being left flat, as indicated in Fig. 2.

5 represents a nut having a flange 6 on one side, that may be, of the form of a continuous ring extending around the bolt, as shown in Fig. 2. To look the nut, this ring is struck with a hammer or other tool and a portion of it forced down upon the flat surface, as shown.

in Fig. 3. We may prefer, however, to divide this flange into a series of tongues 7, that project from the nut and may be forced down independently of one another upon the flat surface. These tongues may be formed in various Ways on the nut; but probably as economical a method as any would be to di- 1, iiT-Look.

- I ratenteanu flai, 1906.

a-aanaof saw-cutss When one of these tongues has been-forced down upon the fiat surface, "the nutwill besecurely locked. 1f, however, it is desired to release the'nut, it is'tui'ned to ward the right, and the depressed tongue following 'thecurved surfacewill ride up onto thethreads and be lifted sufficiently to clear the flat surface when the nut is turnedin the opposite direction." To insure the locking of 8 on the flat surface thatwill be'i'n thepath of the locking-tongue and positivelyprevent the nut from turning toward the left until the tongue has been. raised sufficiently to clear the shoulder. When this shoulder is used, its corner may be beveled, as shown in Fig. 7, and a similar bevel may be provided on the edges ofthe ton being removed t e tongue will ride over the shoulder without catching thereon, having previously been raised oil the flat surface by use of this form of lock-nut with the curved surface on the bolt merging into the threads permits us to dispense with the use of all special tools usually required for unlocking nut-locks of this type. A track-walker or simply rotating the nut toward the-right can raise the tongue a sufficient-distance to clear the flat surface or the shoulder and allow the nut to be removed from the bolt, or if it is merely necessary to tighten the nut the workman can turn it toward the ri ht sufficiently to tighten it and then force own another tongue upon the flat surface to lock the nut in its new position.

. We claim as our invention 1. The combination with a bolt having a threaded end and a flat surface extending on said bolt across the threads lengthwise of the bolt and in a plane substantially at right angles to the radius of the'bolt, the threads on one side of said flat surface gradually decreasing in depth as they approach said surface and finally merging therein in a gradual curve and forming a convex continuation of said flat surface on one side thereof, of a nut havin an annular flangeon one end adapted to be orced down at any desired point in its circumference upon said flat surface and lock said nut against accidental movement, the depressed portion of said flange being ralsed sufliciently by engagement with said convex surface when the nut is turned to tighten 1t es, so that when the nut is the rotation of the nut toward the right. The

section-man with an ordinary wrench by the nut, we may prefer to provide a shoulder" on the bolt to clear the said surface when the nut is turned backward to loosen it on the bolt whereby the nut can be locked on the bolt and tightened thereon to allow another portion of said annular flange to be forced down 11 on said flat surface or the nut removed om the bolt without the use of special tools, substantially as described.

2. The combination, with a bolt, having a threaded end and a flat surface extending on said bolt across the thread .len thwise of the bolt and in a plane substantial at right angles to the'radius of the bolt, t e threads on one side of said flat surface gradually decreasing in depth as the approach said surface and finally merging tlierein in a gradual curve and forming a convex continuation of said flat surface on one side thereof, 'said bolt being, provided on the opposite side of said surface with a low stop having a shoulder facing said surface and extending lengthwise thereof on said bolt, of a nut having an annular flange on one end adaptedto be forced down at any desired point initscircumference upon said flat surface and lockjsaid nut against acciden tal movement, the depressed portion of said flange being raised sufiicientlyby engagement with said eonvex surface when the nut is turned to tighten it on the bolt to clear thesaid surface and the shoulder of said stop when the nut is turned backward to loosen it on' the bolt, whereby the nut can be locked on the bolt and tightened thereon to allow another portion of said flange to be forced down upon said flat surface or the not re- ;moved from the bolt without the use of

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