US1641303A - Furring nail - Google Patents

Description

' 6, Sept 1 27 J. M. THORPE FURRING NAI L Filed Jan. l8, 1926 IN V EN TOR.

J M THORPE,

I Q BY QWQW Patented Sept. 6, 1927.

JOSEPH M. 'rrronrnor SANFRANCISCO, CALIFORNIA;

rmmme NAIL.

Application filed January The present invention relates to furring nails such as are used for spacing a wire netting from the wall of a house for the purpose of applying plaster thereto.

The principal object of the invention is to provide a furring nail that is usedvin construction will not tear the paper against which it rests and isformed in such a mannor that the spacing element is firmly held to the nail penetrating the same so that the whole device may be conveniently handled as a single unit. Y

Further objects and advantages of my invention will appear as the specification proceeds.

The preferred form of the invention is illustrated in the accompanying drawing in which Figure 1 shows a side view of my furring nail.

Figure 2 an end view of the same.

Figure 3 a top plan view of the spacing element before the nail is driven therethrough.

Figure 4 a top plan view of the spacing element after a nail has been driven through the same and been removed.

Figure 5 an assembly view of my furring nail in place on a wall.

Figure 6 a side elevation of two dies by means of which my furring nail may be made.

Figure 7 an end view of a modified form of furring nail.

While I have shown only the preferred form of the invention I wish to have it understood that various changes or modifications may be made within the scope of the claims hereto attached without departing from the spirit of the invention. 7

My furring nail 1 may be made of a short strip of metal the central portion of which is bent into an arcuate form 2 shown in the drawing while at the ends it terminates in flat wings 3 which before application to the wall are slightly inclined toward the latter as appears partlcularly well from Figure 1.

In the center of the arc there is provided a hole 4; from which depends a short sleeve 6 having a narrow mouth 7 of oval form as illustrated in Figure 3.

When a nail is forced through this sleeve the mouth of the same stretches or flows to the form of the nail without causing a fracture in the formation of the sleeve whereby greater frictional contact is created between 18, 1926'. Serial No. 81,997.

the nail and thesleevea After a nail has been driven through the sleeve it looks in top plan view as illustrated in Figure 4, the oval mouth having been rounded and the sleeve being of substantially the same length all around the nail without showing any longitudinal splits.

This form of hole or. sleeve is brought about by the manner in which the device is made and to explain this feature reference is made to the dies 8 and 9 shown in Figure 6. It will be notedthat the arcuate section in the strip of metal is formed between a male die 11 and a femaledie 12 and that a short punch 13 is placed inside of the latter in such a manner that the metal is first curved into arcuate form before the punch becomes active on the material. The latter being thus under tension the punch causes a longitudinal split in the same rather than a round hole and this longitudinal split develops into the sleeve with an oval mouth illustrated in Figure 3. The further operation of forcing a slightly larger nail through the mouth causes the metal to stretch in the manner previously described.

Along the side edges of the arcuate portion of the spacing element are provided flanges 14 which are sufliciently far apart to accommodate between the same the nail head 16 in the manner illustrated in Figure 5 and the strands of wire 17 between the nail head and the top of the spacer. In this manner the nail head does not project beyond the top edges of the flange and does not interfere in any manner with the operation of the plasterer applying the material to the wall.

A further advantage gained by the par- .5

ticular construction shown in the drawing is that the flange may be used for picking up the wire the device being first tilted to introduce one of the flanges underneath the wire strand and then tilted back into a As a particular advantage of the arc form of the furring nail, it might be mentioned that the plaster may freely enter under the are from both sides and close inon the nail so as to prevent any leakage of water along the nail to the wall surface. s V I If it is desired to strengthen the structure of the spacer the latter may be slightly more contracted as shown in Figure 7 in which the sides 18 of the spacer are vertical and of considerable length while the arc is shortened as shown at 19. This form will withstand a heavier blow than that previously described. It should also be noted that due to the shortened arc the tubular eX- tension becomes longer, giving greater frictional surface to hold the nail.

I claim:

1. A furring nail of the character described, comprising an arcuate metallic spacer formed with a perforation in the cen- -ter thereof and with a sleeve depending from the margin of the perforation, the

sleeve having a narrowed oval mouth causing the metal to stretch to the form of a nail driven through the sleeve without being fractured.

2. A furring hail of the character'described comprising an arcuate spacer terminating in flat wings at the ends made for contacting engagement with a wall, the wings being inclined slightly toward the wall and causing the spacer to spread without tearing interposed paper when the spacer is struck.

3. A furring nail of the character described, comprising a. metallic arcuate spacer formed with a perforation in the center thereof and with a sleeve depending from the margin of the perforation, the sleeve having a narrowed mouth causingthe metal to stretch to the form of a nail driven through the sleeve without being fractured.

In testimony whereof I aflix my signature.

JOSEPH M. THoRPn.

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