US771145A

US771145A - Gig-saddle-bolt clipper.

Info

Publication number: US771145A
Application number: US18080603A
Authority: US
Inventors: Oscar O Harris
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-11-12
Filing date: 1903-11-12
Publication date: 1904-09-27
Anticipated expiration: 1921-09-27

Description

No. 771,145. PATENTED SEPT. 27, 1904. 0. O. HARRIS.

GIG SADDLE BOLT CLIPPER.

APPLICATION FILED NOV. 12. 1903.

no MODEL.

UNITED STATES Patented September 27, 1904.

OSCAR O. HARRIS, OF INDIANAPOLIS, INDIANA.

GIG-SADDLE-BOLT CLIPPER.

SPECIFICATION forming part of Letters Patent No. 771,145, dated September 27, 1904.

Application filed November 12, 1903. Serial No. 180,806.

To all whom, it may concern:

Be it known that I, OsoAR O. HARRIS, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana, have invented new and useful Improvements in Gig-Saddle-Bolt Clippers; and I do declare the following to be a full, clear, and exact description of the invention, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to hand-power clippers for cutting off the ends of bolts and rivets in cases where excessive lengths thereof after completion of the work would prove unsightly or undesirable, and the invention has particular'reference to clippers that are especially designed to operate in narrow spaces under gig-saddles for cutting off the ends ofv the saddle-bolts after the nut thereof may have been applied and tightened.

The object of the invention is to provide a powerful yet inexpensive portable clipper for gig-saddle bolts and other bolts and rivets of simple and durable form of construction which may be employed economically by the ordinary workmen and in which the cutters particularly may be cheaply produced and economically maintained.

The invention consists in the novel improved forms embodied in the several features of construction, as hereinafter particularly described, and pointed out in the claims hereto appended.

Referring'to the drawings, in which similar reference characters in the several figures designate corresponding parts or features, Figure 1 represents a side elevation of a clipper constructed substantially in accordance with the invention adapted for bench use; Fig. 2, a fragmentary top plan view; Fig. 3, a perspective view of a cutter employed in the clipper; Fig. 4:, a transverse sectional detail view on a line 1 1 in Fig. 1; Fig. 5, a transverse sectional detail View on a line 2 2 in Fig. 1, showing the gear-head without the gearing thereof; Fig. 6, a fragmentary side elevation showing the rear or side opposite to that in Fig. 1; Fig. 7 a fragmentary horizontal sec- (No model.)

tional detail view centrally of the cutter-head; Fig. 8, a fragmentary side elevation of the operating-lever and eccentric attached thereto; Fig. 9, a perspective View of a coupler for retracting the movable cutter; and Fig. 10 is an end view of the clipper, in connection with which is indicated in broken lines the outline of a gig-saddle as it should be placed against the cutter-head for clipping the bolt end ofpivot-pin 0, in the gear-head, the lever having a stop (Z attached thereto operating against the beam A. It should be understood that the beam A may be held movably by the operator when most convenient to do so, and when not required for bench use the stock a and the projection b may be omitted from the beam.

The gear-head B comprises a pair of opposing sides a and a, between which the eccentric E is situated, the side 0 having a circular aperture f and the side 0 having a threaded aperture f to receive the pivot-pin c, which is threaded to correspond. The gear-head is integral with the beam A, and the guideway for the movable cutter F extends therein from the cutter-head C, so that the fixed cutter G may be inserted into the guideway through the gear-head. The guideway for the cutters comprises opposing guide-faces g and g, extending from the gear-head Bthrough the cutter-head O nearly to the end thereof, the head O being integral with the head B. The planes of the guide-faces g and g are convergent toward the operative front of the tool, this front being open in the head O, so that the narrower faces of the cutters are flush with the front face of the cutter-head, the outer upper and lower faces it and it being also convergent nearly in conformity to the inner guide-faces g g. The cutters F and G have guide-faces 2' and z",which are also convergenttransversely to conform to their guides g 9. Each cutter has a chisel-end form of cutting edge 7', one opposing the other. The guidcways for the cutters may be drifted out by a suitable tool inexpensively. The cutters F and G are substantially alike, except that the movable cutter is somewhat longer than the other and has a socket l: to receive a lug 3 or 4: of a coupler H, which operates in a guideway Z in the innor face of the side a, the other lug of the coupler operating in a curved groove m in the side of the eccentric E, which groove corresponds to the curvature of the face of the eccentric with respect to the hole 5 in the eccentric, whereby the eccentric and the leverD are connected to the gear-head by the pin 0. The cutter-head C has an opening 12. in its rear side to permit the escape of the bolt end when severed from the bolt. At the end of the cutterhead C is an abutment p, closing the guideway for the cutters to support the fixed cutter against the action of the movable cutter. The cutter-head C is fitted with an adjustingscrew I, having a jam-nut J for taking up lost motion of the movable cutter F in its guides, although this feature may in some cases be omitted. A binding-screw K is also fitted in the head C, and it bears forcibly against the back of the cutter G, so as to insure rigidity thereof, yet permit adjustment of the cutter when repeated sharpening requires the cutter G to be advanced toward the other cutter. The adjustment is provided for by means of a screw L, extending into a threaded hole 9 in the butt-end of the cutter G, the screw L having a collar 1 bearing against the abutment 1) and also having a slotted stem 8 extending through the abutment, so as to beaccessible to a screw-driver. The coupler H is of suitable length to hold the cutter F close to the eccentric E at all times.

In Fig. 3 the cutter I has the threaded hole 9 in its end, which, however, is not necessary in the movable cutter, nor is the socket 7 shown in this figure necessary in the fixed cutter, as will be understood. In other respects both cutters are alike in form and interchangeable, although it is preferable that the fixed cutter be somewhat shorter than the other, so that the cutter-head need not be excessively long. In this plan, however, it is obvious that repeated grinding in resharpening the cutters willrender the fixed cutter too short for use before the movable cutter becomes worn out, and in order to economize in the use of cutters it is proposed to substitute the old movable cutter for the worn-out fixed cutter and supply a new movable cutter rather than two new ones. In such cases originally the fixed cutter will have the hole 1 and not the socket 7", while the movable cutter will have both of these features, so that the screw L may be used in the hole q when the movable cutter may have replaced the worn-out fixed cutter.

In practical use the lever D is to be moved oppositely from the beam A, causing the eccentric E to be rotated about the pivot c, and by means of the coupler H drawing the cutter F toward the pivot, thus admitting the bolt or rivet end between the cutters, whereby the end. may be easily clipped ofi by a reverse movement of the lever D. It will be seen that the wedge-like front of the cutter-head may enter very narrow places where bolts may be found, especially under gig-saddles.

Having thus described the invention, what I claim as new is v 1. A bolt-clipper including a cutter-head provided with a binding-screw in the back thereof and having a pair of inclined guides disposed oppositely to the binding screw, a stationary cutter held by the binding-screw against the inclined guides, a movable cutter operating against the inclined guides, a guide for the back of the movable cutter disposed oppositely to theinclined guides, an eccentric for operating the movable cutter, and a coupler cooperating with the eccentric and the movable cutter.

2. A bolt-clipper including a cutter-head having guideways, a pair of cutters of which one may be transposed in the guideways and substituted for the other, and an eccentric having its operative face in engagement with the butt-end face of the transposable cutter.

3. A bolt-clipper including a cutter-head having an open front, a stationary cutter, a movable cutter, an eccentric for operating the movable cutter, a coupler connected to the movable cutter and also to the eccentric for retracting the movable cutter, a bindingscrew in the back of the cutter-head forcing the stationary cutter toward the open front of the cutter-head, and guides in the cutter-head opposed to the cutters and the binding-screw.

A. A bolt-clipper comprising a gear-head having a guideway therein, an eccentric mounted in the gear-head and having acurved groove extending across the front of the guideway, a cutter-head attached to the gear-head, a stationary cutter mounted in the cutterhead, a movable cuttermounted in the cutterhead operatively connected with the eccentric and having a socket therein opposite the guideway, and a coupler in the guideway and extending into the socket and also into the curved groove.

5. In a bolt-clipper, the combination of a gear-head comprising a pair of sides, a cutterhead comprising a broad back extending from one of the sides and a top and bottom attached to the back and also to the gear-head and inclined toward one another, the cutter-head having an open narrow front opposite the broad back thereof, a stationary cutter in said cutter-head, a movable cutter in said cutterhead, an eccentric pivoted in said gear-head cooperating with the movable cutter, and a coupler cooperating with the movable cutter and the eccentric for retracting the movable cutter from the stationary cutter.

6. In a bolt-clipper, the combination of a beam, a gear-head having a pair of sides integral with the beam, a cutter-head having the convergent top it and bottom 72. forming a narrow front and broad back, the pivot attached to said head sides, a lever provided with an eccentric mounted on said pivot and having the curved groove in the side thereof, a movable cutter provided with a coupler extending into said groove, and an adjustable cutter.

7. In a bolt-clipper, the combination of the beam A having the stock a and also the pin 6, the gear-head B having the sides 6 6 attached to said beam, the cutter-head having theconvergent top it and bottom it forming a narrow front and broad back, the pivot 0 attached to said head sides, the lever D provided with the eccentric E mounted on said pivot and having. the curved groove in a side thereof, the movable cutter provided with a coupler extending into said curved groove, the adjustable cutter, the adjusting-screw for the adjustable cutter, the binding-screw in the back of said cutter-head at right angle to said adjusting-screw, the adjusting-screw for said movable cutter in the back of said cutterhead, and a stop for said lever D.

8. In a bolt-clipper, the combination of a beam, a gear-head having a pair of sides integral with the beam, a cutter-head having the convergent top h and bottom A forming a narrow front and broad back, a stationary cutter in said cutter-head, a binding-screw forcing the stationary cutter against the inner sides of said convergent top and bottom, a movable cutter, a lever provided with an eccentric pivoted in said gear-head for operating the movable cutter, a coupler connected to the movable cutter and also to the eccentric for retracting the movable cutter, and an adjusting device operating to hold the movable cutter against the inner sides of the convergent top and bottom.

9. In a bolt-clipper, the combination with a cutter-head, of cutters mounted in the head and consisting each of an oblong bar having four plane side faces extending from end to end thereof and three of said side faces forming guide-faces one of the ends of the bar having a cutting edge, the transverse dimensions of the bar being uniform throughout from the cutting end to the opposite end thereof, as herein described, for the purposes set forth.

In testimony whereof I affix my signature in presence of two witnesses.

OSCAR O. HARRIS.

Witnesses:

WM. H. PAYNE, E. T. SILvrUs.