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Publication numberUS556642 A
Publication typeGrant
Publication dateMar 17, 1896
Filing dateMay 31, 1895
Publication numberUS 556642 A, US 556642A, US-A-556642, US556642 A, US556642A
InventorsFred Reessing
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 556642 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

(No Model.)


NUT LOOK Patented Mar. 17,1896.




SPECIFICATION forming part of Letters Patent No. 556,642, dated March 17, 1896.

Application filed May 31, 1895. Serial No. 551,134. (No model.)

To aZZ whom it may concern-.-

Be it known that I, FEED REEssING, a citizen of the United States, and a resident of Moline, in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Nut-Locks; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to improvements in nut-locks adapted more especially for use in connection with railroad-rails and for connecting parts of machinery which are subjected to vibration whereby the nuts are liable to work loose.

The object of the invention is to provide an improved nut-lock which shall be simple and economical in construction, and which shall possess superior advantages with respect to efficiency in operation.

The invention consists in the novel construction and combination of parts hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a side elevation showing my improved device used for locking the nuts of the bolts which connect two railroad-rails together. Fig. 2 is a detail perspective view showing the locking-arm thrown out of engagement with the nut. Fig. 3 is a cross-section on the line at .50, Fig. 1. Fig. 4 is a plan view of the lockingarm detached. Fig. 5 is a sectional view of a modification.

In the said drawings the reference-numeral 1 designates two railroad-rails, and 3 a fishplate, which may be of any ordinary or suitable construction. These rails and fish-plates are formed with aligned apertures, through which pass bolts i provided with nuts 5, which may be square, hexagonal or of any other form desirable.

Connected with the fish-plate at one side of each of the bolts 4 is a screw-bolt 6,.which engages with a correspondingly-threaded aperto this pin between the head thereof and one of the sides of the bolt is a locking-arm 9 having a flattened head 10.

The numeral 11 designates a screw-pin, also engaging with a corresponding recess in the head 7, to which is pivoted a plate 12, which, when the locking-arm is thrown into engagement with the nut, can be turned over the end thereof and thus hold it in place.

In the modification shown in Fig. 5 the bolt is made with a bottom left-hand screwthreaded recess and the screw-bolt is formed with corresponding screw-threads. The locking-arm 9 in this instance is bent backward at aright angle and the extremity turned inward at an angle, so that when turned on its pivot said extremity will engage with the side of the nut and lock the same. The plate 12 is also bent at an angle at its free end and its axis is at a right angle to the axis of plate 9, so that it can be turned sidewise with respect to said latter plate, and its turn ed or inwardlybent end engaging with the outer edge of plate 9 will prevent the same from turning on its pivot, thus locking the nut.

While I have shown and described the device as being used for connecting two railroad-rails together, it is obvious that it may be employed for all other purposes for which nut-locks are applicable.

Having thus fully described my invention, what I claim is- In a nut-lock, the combination with the screw-bolt adapted to be passed through apertures in a railroad-rail and fish-plates and having a screw-threaded recess in one end and a head at the other end, the nut fitting on said bolt, the headed screw-bolt fitting in said recess, the locking-plate pivoted to one side of the head and the plate pivoted to the end of the head adapted to be turned down against the side of said locking-plate and hold it in place, substantially as described.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.



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US7322984Jan 6, 2005Jan 29, 2008Spinal, LlcSpinal plate with internal screw locks
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US7468069Feb 10, 2004Dec 23, 2008Atlas Spine, Inc.Static anterior cervical plate
US7740649Oct 26, 2004Jun 22, 2010Pioneer Surgical Technology, Inc.Bone plate system and methods
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US9655665Jan 22, 2013May 23, 2017Pioneer Surgical Technology, Inc.Bone plate systems
US20060036249 *Aug 12, 2004Feb 16, 2006Baynham Bret OBone plate with screw lock
US20060149253 *Jan 6, 2005Jul 6, 2006Doubler Robert LSpinal plate with internal screw locks
US20060149255 *May 6, 2005Jul 6, 2006Doubler Robert LSpinal implant kit
US20060161157 *Oct 26, 2005Jul 20, 2006Lawrence MoscaBone plate system and methods
US20070123879 *Feb 5, 2004May 31, 2007Pioneer Laboratories, Inc.Bone plate system
US20090012571 *Jul 3, 2008Jan 8, 2009Pioneer Surgical Technology, Inc.Bone Plate System
US20090062862 *Aug 27, 2008Mar 5, 2009Pioneer Surgical Technology, Inc.Bone Plate System
Cooperative ClassificationF16B39/08, Y10S411/927, Y10S411/989