US895050A - Rat-trap. - Google Patents

Description

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appease@ mea November is, 19m'. seriai No. 402,425.

To all 'whom it 'may concern: v I

Be it known that ,1, Tnnonone L. SMITH, a citizen of the United States, and a resident of Detroit, in the county'of Wayne and State 5 of Michigan, have invented anew and Improved Rat-Trap, of which the following is a specification.

This improvement relates broadly to fastening devices between longitudinal and transverse members of metal webs, and the object of this invention is to provide e construction irhereby flat longitudinal members and round transverse members may be secured together. A

My invention, a fastener .for metal webs to form tubes, comprising dat longitudinal members end transverse members of' any forni, consists of staggerei'l fingers formed by flat members at I ill'erent sections and turning them up, the fingers being turned down over the transverse members after they are positioned to hold them in place.

My invention is partici-iisrly adapted to rat-traps for fastening together the ongitudinal and circumferential members, and in the accompanying drawings, Figure 1 is a general View of strap. Fig. 2 is a view of a section o e, lon itudinal member showing the fingers turner up. Fig- 3 is a view'of a similar section with transverse members held in 1l-aceY by the turned down fingers.

iniilar reference characters refer to like parts throughout the several views.

The foi-sn of trap 'shown in Fig. l hns been in general use for some time. the longitudinal and transverse members being of round wire and secured together by means of a light Wire passing around both members at their points o Contact. T he union was far from positive, so the transverse `rires were often separated by imprisoned. rats. 'lhe thin fastening rrircs quickly rested oil" and the trap becsnie useless. The cost o'f lacing in the fastening wires by lie-ind is very great.

The longitudinal members 1 shown 'in the drawings are strips of merel about one fourth of an inch wide and about fifteen one-thousandths of an Inch thick- The fingers 2 measure about one-fourth inch long, and are about one tenth inch Wide at the base. These dimensions are such ns I have found to give satisfaction, but may be varied from as desired by having the edges of the 1ongi- 55 tudinal members slitted alternately or stag- Specication o! Letters Patent.

Patented Aug. 4, 1908.

gered, that is, not directly opposite it is possible to use a strip of metal of muc narrower width and be stronger and stiffer than when oppositely slit-ted. Each rin is held by each rib so that one finger is o y necessary and required t-o be turned down, thus avoiding extra. operations and cost of manipuletion.

The body of the trap is formed ou a mandrel havin@ dinai members are positioned and their ends hooked onto the -tirst rin 1 of circumferential wire 3 at 4. The man( relthen revolves,

ing bent down to h the Wm V of wirel in position. The opposite ends grof the strips i are also bent over to grip the f inelrwrep'of wire. The door 7 is then put in"th\e tra 'diagonally slittin the alternate edges of the i door holding screenY 8 is insertedfind t e conical end 9 is secured in positioneonipleting the trap. The auxiliary parts areill consiructed in the same manner as other wire fabric.

Haring now explained my improvements, what I claim as my invention and desire to secure by Letters Pat-ent is l. A rat trap comprising a series ,of Hat longitudinal metal members having their opposite edges slitted elternately or staggered and diagonally to form retaining tingers, and circumferential wire members extending around the flat members and held in position by said lingers, the ends of the flat members being bent'to hook around the cir- 2. Ara-t trap comprising a. series of spaced dat longitudinal members having then' opa circumferential member Wound s irally around the longitudinal members and eld in position by 'said nngers.

specification in the presence of two subscribi ing witnesses.

ll'itnesses:

MINNIE C. WADHAM, ELizABLTn M. BROWN.

the desired form. The longitu.

winding the wire 3 in1 (place, the lingers 2 bethe trap, of ilat andround members, th "tide members having the' fingers 2 to hold th\\\\\ round members in position. While this. `8 method of fastening is particularly adapted'` to rat-traps, it may be employed to form any cnniferential membersat the ends ofthe trap.

posite edges slitted alternately or staggered and diagonally to form retaining fingers, and

In testimony whereof, I have signed this l 'rnEoDoRE L. SMITH.

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