US879097A - Joint-binder. - Google Patents

Description

m GLARDON. JOINT BINDER APPLICATION FILED MAY 24, 1907.

Fa 5. F694 #2616556; I fizz/670602 THE NORRIS I ETE PATENTED FEB. 11, 1908.

EDOUARD CHARLES GLARDON, OF HAMBURG, GERMANY.

JOINT-B INDER.

Specification of Letters Patent.-

Patented Feb. 11, 1908.

Application filed May 24. 1907. Serial No. 375.530

To all whom it may concern:

Be it known that I, EDOUARD CHARLES GLARDON, a citizen of the Swiss Republic, and resident of No. 27 Grosse Bleichen, Hamburg, in the Empire of Germany, have invented a new or Improved J oint-Binder, of which the following is a specification.

The present invention relates to an improved clamp for binding together wooden planks, boards and the like, the special sphere of application of the invention being the safeguarding of wooden boxes or chests against fraudulent opening in their transport or storing.

Special objects of the invention are to render more eflicient, serviceable and durable in operation devices of the kind referred to.

With these ends in view the invention consists in the novel combination arrangement and adaptation of parts, all as more fully hereinafter explained, shown in the accompanying drawings and then specifically set out in the appended claims.

In the annexed drawings Figure 1 is a pers ective elevation of the improved binding 0 amp in its application for connecting the lid with the body of a box, Fig. 2 is a front elevation of Fig. 1 showing the improved binding clamp edgewise, Fig. 3 represents an elevation of the improved binding clamp seen from the left of Fig. 2, Fig. 4 is a top elevation of Fig. 3,

The invention relates to an improvement in that well known class of binding clamps, which are employed in connecting and fasten.-

ing together wooden planks and boards,

more especially in binding and securing the lids in regard to the boxes, so as to safeguard the contents of the latter against pilfering and being tampered with. Binding clamps of this kind generally consist of two perforated shanks connected. together and integral with a web or bridge. These shanks are to be driven into the two parts to be bound together, whereupon a nail is inserted vertically in regard to the shanks through the holes in the latter. By employing barbed nails and by driving each nail in until its head is countersunk, the connection between the two 7 arts can generally not be disturbed without leaving visible traces in the surfaces of the wooden parts. It is however possible to drive a suitable chisel along the shanksinserted in the wood and in this way to sever the nail closely above the upper and closely beneath the lower shank. The clamp can terrupted and the I then be extracted with facility, enabling the connection between the two parts to be inlid to be lifted off. After driving home again the clamp the original appearance of the connection between the two parts can be reproduced without n0- ticeable traces or external damages.

According to this invention the clamp is constructed in such a manner, that the shanks a, a do not connect directly with the web or bridge I), as is customary with the ordinary clamps but rim'portions c, c are provided by the web or bridge I) which extend some distance beyond the shanks a, a. These rim portions 0, c are referably produced by bending and dou ling back the metal sheet blank of suitable length employed for manufacturing the clamp, as shown in the various figures.

When binding clamps according to this invention of the nature just before described are used, the insertion of a chisel at the ex.

ternal edges of the rim 0, c for the purpose of cutting or severing the nail cl produces a clearly visible indentation by the cut of the chisel, without affording the means of separating the two parts 0, f connected together. The chisel, which would attack the nail d at a distance from the shanks a, a corresponding to the length of the rims 0, generally bends the nail inside the wood without severing it. Even assuming the nail will be severed, the middle portion of the nail, divided off by the cutting action of the chisel, would project with both extremities sufficiently beyond the shanks a, a to prevent the clamp being extracted.

Inserting the chisel obliquely i. e. directed from the edges of the rims c of the web or rib b towards the point of intersection of the shanks a and of the nail (1, would either split and chip the wood or at any rate prevent the nail being cut close enough at the surface of the shanks, to enable the clamp to be withdrawn.

The Web or bridge of the clamp is suitably curved or otherwise figured at its two marginal portions as indicated by the refer ence letter g to prevent the clamp and the wood portions beneath same being excavated by a mortise chisel or the like.

I do not desire to be understood as limiting myself to the detail construction and. arrangement of parts as herein shown and described, as it is manifest that variations and modifications therein may be resorted to, in

the adaptation of my invention to varying conditions of use, without departing from the spirit and scope of my invention and improvements. I therefore reserve the right to all such variation and modification as properly falls within the scope of my invention and the terms of the following claims.

Having thus described my invention, I claim and desire to secure by Letters Patent:

1. In an improved binding clamp of the nature set forth consisting of a pair of perforated shanks a, a connected together by a Web or bridge I), the rim 0 arranged at each end of the connecting web, said rims 0 lengthening the Web I) and extending at both extremities of the latter beyond the shanks a, substantially as described and shown and for the purposes set forth.

2. In an improved binding clamp of the nature set forth consisting of a pair of perforated shanks a, a connected together by aweb or bridge I), the rim 0 arranged at each end of the connecting web, said rims a being produced by bending and doubling back the metal blanks of the clamp at the web portion and by subsequently bending off the shanks a at a distance from the external edges of the rim 0, substantially as described and shown and for the urposes set forth.

In witness whereof I have hereunto signed my name this 10th day of May 1907, in the presence of two subscribing witnesses.

EDOUARD CHARLES GLARDON.

WVitnesses:

ERNEST H. L. MUMMENHOFF, IDA CHRIST. HAFERMANN.

Images