US793123A - Wire nail. - Google Patents

Description

PATENTED JUNE 27, 1905.

G. J. CARROLL. WIBE NAIL.

APPLIOATION HLBD 0014 1904.

Q w z Patented June 27, 1905.

ATENT OFFICE.

WlRE NAIL.

SPECIFICATION formng part of Letters Patent No. 793,123, dated June 27, 1905.

Application filed October 4, 1904. Serial No. 227.120.

more, in the State of Maryland, have invented l form a straight tack end (r, an arched head 7), Be it known that I, CHARLus J. CARROLI.. a l a circle or ring c around the tack end, and a citizen of the United States` residing at Balticertain new and useful lmprovcments in fire Nails, of which the following' is a specification.

This invention relates to an impr;ved Wire nail for securing rooling-paper or tarred paper to wood structures. Heretofore it has been the practice to secure such paper by employing tin-plate disks and tacks. The tinplate has usually been` stamped up,to form a convex surface with a small hole in the center. This` disk is placed on the paper with its con- Cave side toward the paper. By thus utilizing the circular base of the disk it has a bearing over the largest possible area of the paper. The point end of the tack or nail is inserted in the said small central hole, and' the tack is then d riven in until its head bears on the convex part of the disk. paper securely; but there are various practical objections to its use. There being' two pieces, it cannot be handled rapidly enough, it cannot be removed and used ag'ain, and its cost is too great.

The object of my invention is to dispense with the tin-plate disk and to provide a wire nail of such shape as will serve the same functions of both the convex tin-plate disk and tack and at less cost and which can be handled and applied with greater rapidity and be withdrawn whenever desired and used again.

The invention is illustrated in the accompanying drawings, in which* Figure 1 is a top view of the wire nail. Figs. 2 and are side views of the wire nail in normal positions, taken in relatively transverse directions. Fig. 4: is a section of the nail, a 'Sheet of roofing-paper, and a piece of wood, the nail being driven only partly in. Fig. 5 shows a side view of the nail and other parts in the same relation, but here the nail has been driven entirely in. Fig. (3 is a similar view to that in Fig. 5, but differs thercfrom in showing the nail at the same side seen in Fig. 3.

The Wire that composes the nail is bent to This device holds the cle or ring.

radial bar (Z, connecting the said head and cir- To more specifically describe it, the tack end 11 is pointed and is in the center of the circle or ring' and the head /1 of the tack end, which connects with the radial bar, has a short Vertical doubled back bend in the form of an arch. This short or abrupt arch projects above the radial bar and above the plane of the circle or ring. The single circle or ring c is concentric with respect to the tack'end u, and normally-that is, when the nail is unattachedfl--this ring` has a spiral formation which is observable when viewing the tack end sidewise, as in Figs. 2 and 3. The radial bar M connects one side of the arehed head with the highest part of the spiral-shaped ring` and the free extremity of the ring is the lowest part of the spiral and is beveled on top, as at c', to form a sharp slightly down-pointed end. A wire nail having these features is sufiicient by itself without a tin-plate disk and answers all the re- (ipiirements for holding roofing or weatherexcluding paper without any of the additional devices heretofore used.

The head /1 affords several ad vantageous results. The short or abrupt arch makes the wire lirm enough to receive the blows of a hammer without being flattened or injured, and the loop 1/, which the arch forms, remains open and stands up above the plane of the ring' c after the tack end has been driven entirely in. This up-projecting loop serves for the reception of a suitable pronged instrument to withdraw the tack. As the free extremity of the ring is the lowest part thereof and as it has a beveled down-pointed end c', it is the lirst part of the ring' to bear on the paper when the nail is being driven, and it cngages with or pricks into the paper and prevcnts the ring and tack end from turning or rotating. Then the tack end /1v has been driven in far enough to cause the radial bar (Z to press on the paper, all parts of the ring c will be found bearing lirmly on the paper and covers the largest possible area thereof.

Having thus fully describcd my invention,

what 1 claim as new, and desire to secure by stands above the plane of said Circle or ring, Letters Patent. isas set forth. Io

The improved Wire nail having a straight In testimony Whereof liafix mysignature in tack end, a; a single cir'cle or ring concentric presence of two witnesses.

With said tack end; and a radial bar con- CHARLES J. CARROLL. nected With said circle or ring and having a Witnesses: doubled back bend forming for the tack end HARRY L. PRICE,

an arched head with an open loop which l EUGENE FREDERIGK.

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