US1102162A - Appliance for breaking metal nuts. - Google Patents

Description

J. F. NORMAN.

APPLIANCE FOR BREAKING METAL NUTS. APPLICATION FILED JULY 22, 1913.

1,102, 1 62, Patented June 30, 191i 2 SHEETB BKIHT 1.

COLUMBIA PLANOCIRAPN 410-. WASHINGTON, D c.

J. F. NORMAN.

APPLIANCE FOR. BREAKING METAL NUTS. APPLICATION FILED JULY 22. 1913.

1,102, 162. Patented June 30,1914

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COLUMBIA PLANOUIAPII $0.. wnsnmo'rou. D. b

UNITED STATES PATENT onnron.

JOHN F. NORMAN, 0F LIMA, OHIO, ASSIGNO-R OF ONE-HALF TO CHARLES ERSHICK, OF

LIMA, OHIO.

APPLIANCE FOR BREAKING METAL NUTS.

Specification of Letters Patent.

Patented June 30, 1914.

Application filed. July 22, 1913. Serial No. 780,586.

To all whom it may concern.-

Be it known that I, Jonn F. Norman, a citizen of the United States, residing at Lima, in the county of Allen and State of Ohio, have invented new and useful Improvements in Appliances for Breaking Metal Nuts, of which the following is a specification.

This invention relates to appliances for breaking metal nuts which are not readily removable from their bolts, such a device having general utility in various environments, being especially useful in the repair of freight cars.

The object of the invention is to provide a device for the purpose stated having means whereby the breakage of the nut and its consequent removal from the bolt may be accomplished quickly and with facility, and having its parts constructed to accommodate nuts of varying shapes and sizes.

The improved appliance is simple in its structural details and is of substantial nature, whereby it will not be detrimentally affected by rough usage.

An embodiment of the invention is illustrated in the accompanying drawings, where- Figure 1 is a perspective view of the appliance; Fig. 2 is a vertical cross sectional view thereof; Fig. 3 is a vertical longitudinal sectional view thereof; and Fig. 4 is a horizontal sectional view on the line 1-4 of Fig. 3, looking inthe direction of the arrow.

Similar characters of reference designate corresponding parts throughout the seve 'al views.-

The nut to be broken is supported upon a relatively heavy anvil 1, preferably in the form of an i'lpright oblong block and having at one side thereof a handle 2 by means of which the appliance may be readily carried in the hand. The breaking of the nut is accomplished by a cutter or chisel 3 and the nut is centered with relation to said cutter or chisel by a pair of jaws 4 associated with the upper face of the anvil 1.

A bracket 5 is secured tothe anvil 1 and projects upwardly therefrom, this bracket being provided with horizontal webs 6 having openings through which the chisel 3 is movable, and which, of course, guide said chisel in its movements. The chisel 3 is held in a normal relation by an expansive coil spring 7 which is arranged between the webs 6. The spring 7 is preferably of tapering form and is secured at its center, as by a cotter pin 8, to the chiscl, a coil of the spring passing through the eye of said cotter pin.

The bracket 5 includes a pair of checks 9 which lie adjacent the sides of the anvil 1 and are secured thereto. The checks 1) are provided with longitudinal slots 10 and a bolt 11 passes through a transverse opening in the anvil and through the slots 10, the bolt 11 being provided with a head at one end and a wing nut 12 at the other end. The cheeks 9 are clamped against the sides of the anvil by tightening the nut 12, as is obvious, and in order that the bracket 5 may be positively held against movement relative to said anvil, the inner faces of the checks 9 and the adjacent faces of the anvil are provided with mating corrugations 13. The checks 9 have a certain measure of resiliency, and tend to spring away from the sides of the. anvil, and it follows that when the nut 12 is turned to relieve the clamping pressure on the checks, the latter disengage the corrugated sides of the anvil, thereby enabling the bracket 5 to be adjusted vertically with relation to the anvil, such adjustment being provided for by the slots 10.

The vertical adjustment of the bracket 5 relative to the anvil is made in view of the diameter of the nut to be broken, in order that, as the diameter of the nut may be greater or less, the cutting edge of the chisel 3 may have a normally greater or less spacing from the upper face of the anvil, the normal position of the chisel relative to the anvil therefore being selected to conform to the diameter of the nut. The position of the jaws -:t relative to one another may also be varied in accordance with the diameter of the nut. The means for adjusting the jaws 4 preferably comprises a right and left threaded screw 1 1 which passes through a dovetail recess 15 formed t 'ansverscly in the upper face of the anvil and through the slots 10 in the cheeks 9, and lugs 16 formed as parts of the jaws t and which are engaged with the respective right and left threads of the screw 141:. The lugs 16 are of dovetail outline and fit conformably in the recess 15. To prevent the screw 14 from having any play which might iterfere with the accuracy of the adjustment of the jaws 4;, a wing nut 17 is secured on one end of said screw, as by a cotter pin and an expansive coil 'end of the screw to take up loose play, and a chisel carried by the bracket.

8. An appliance for breaking metal nuts, comprising an anvil, a bracket upright therefrom and having a pair of cheeks which are held adjacent the side faces of the anvil and are provided with longitudinal slots, a bolt passing through the anvil and through said slots and having a clamping nut at one end thereof to hold the cheeks in locked relation to the anvil, a pair of centering jaws associated with the upper face of the anvil, the anvil having a transverse groove in its upper face and the jaws having lugs which engage in said groove, a right and left threaded screw disposed in the groove and having its oppositely directed threads engaged with said respective lugs, the ends of the screw projecting through the slots, a coil spring acting on one end of the screw to take up loose play, and a chisel carried by the bracket.

9. An appliance for breaking metal nuts, comprising an anvil, a bracket upright therefrom, means for adjusting the elevation of the bracket relatively to the anvil, a pair of nut centering jaws associated with the upper face of the anvil, means for adjusting said jaws relatively to one another, and a chisel carried by the bracket.

10. An appliance for breaking metal nuts, comprising an anvil, a bracket upright therefrom, a pair of nut centering jaws associated with the upper face of the anvil and having a diverging relation, a chisel carried by the bracket and movable along its axis,

the axis of the chisel being inclined relatively to the perpendicular,- and means for adjusting said jaws relatively to one another.

11. An appliance for breakin metal nuts, comprising an anvil, a bradket upright therefrom, a pair of nut centering jaws associated with the upper face of the anvil and having a diverging relation, a chisel carried by the bracket and movable alon its axis, the axis of the chisel being inclined relatively to the perpendicular, means for ad justing said jaws relatively to one another, and means for adjusting the elevation of the bracket relatively to the anvil.

12. An appliance for breaking metal nuts, comprising an anvil, a bracket upright therefrom and having a pair of checks which are held adjacent the side faces of the anvil and are provided with longitudinal slots, one of which extends to the lower edge of the check in which it is formed, a bolt passing through the anvil and through said slots and having a clamping nut at one end thereof to hold the cheeks in locked relation to the anvil, nut centering jaws associated with the upper face of the anvil, and a spring held cutter carried by the bracket.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOHN F. NORMAN.

Witnesses A. D. MILLER, M. A. HoAcLANn.

copies of thin patent may he obtained for five cents each, by addressing the Commissioner of Intent, Washington, D. G."

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