US2463787A - Clamping device - Google Patents

Description

March 8, 1949. A MaGDONA 2,463,787

' CLAMPING DEVICE Filed Sept. 10, 1947 a I .INViILTORLX wwiefacf Patented Mar. 8, 1949 UNITED STATES" PATENT OFFICE CLAMPING DEVICE Archibald A. MacDonald, Boston, Mass.

Application September 10, 1947, Serial No. 773,224

2 Claims. 1

My present invention relates to clamps or fastening devices, particularly to clamps or fasteners of the clothes pin type.

Reference is made to my pending patent application, Serial No. 631,978, filing date November 30, 1945, for a Clamping device, now Patent Number 2,442,701, June 1, 1948.

The principal object of my invention is an improved device of this type formed from a single length of wire having legs defining an enclosing passage, and with a resilient closure for said passage comprised of a loop having its axis substantially perpendicular to the plane of the handle of the device.

The foregoing and other objects which will appear as the nature of the invention is better understood, may be accomplished by a construction and combination such as is disclosed by the drawings and specification. The nature of this invention is such as to render it susceptible to various changes and modifications, and, therefore, I am not to be limited to said disclosures; but am entitled to all such changes therefrom as fall within the scope of my claims.

In the drawings:

Figure 1 is a front elevational view of my fastening device.

Figure 2 is a side elevational view of the structure shown in Figure 1, viewed from the left of said Figure 1.

Figure 3 is an elevational view of the structure shown in Figure 1, on an inclined plane, to more clearly show the relationship of the axis of the anchor loop with respect to the legs and to the handle of the device.

Referring to the drawing, my device consists of a single, unitary length of wire of resilient material, and of any appropriate length. In forming the clamp or fastening device embodying my present invention, I form, at a point about midway of the ends of said single wire, a double anchor loop of at least one and one-half turns, one loop portion being designated H, and the other loop portion being designated l2. The loops II and 12 have a common axis and they preferably define a central opening or hole H. From the loop I l and [2 the free ends of the wire are brought downwardly to form the parallelly arranged double legs l3 and M respectively.

In forming the double leg Hi, the free end of 2 the said wire is brought down from the loop ll to form the leg member [5, and at the lower end is formed into a loop IE, and is then extended upwardly to form the leg member ll, the leg mem-- bers I5 and I! being substantially parallel to each other most of their length. As the material approaches the loop I I, it is flared outwardly, as viewed in Figure 1, and is then formed into a handle portion l8, terminating above and partially surrounding the loops II and I2.

The double leg 14 extends from the loop l2, and the material forms a leg member [9 having a loop 20 at its lower end, and is then extended upwardly to form the leg member 2i, the leg members I9 and 2| being substantially parallel to each other most of their length. As the material approaches the loop l2, it is flared outwardly, as viewed in Figure 1, and is then formed into a handle portion 22, partially surrounding the loops II' and I2, and overlapping the end of the handle portion IS.

The lower ends of the double legs l3 and I4 are bent outwardly from each other to form a flaring mouth or passage 24 to more readily receive a line or cord to which the clamp is to be attached. The double legs [3 and M are spaced apart from and are substantially parallel to each other to thereby define a narrow passage throughout the major portion of their length.

The free end portions l8 and 22 that overlap are welded or otherwise united together, as at 25, thus forming a rigid handle which yields slightly at both sides when the device is under tension. Said single wire preferably is made of resilient material, either rust resisting in itself, or coated with a material which renders it rust resisting.

The common axis of the loops II and I2 is preferably perpendicular, or, at least, substantially perpendicular to the plane in which lie the handle members l8 and 22.

What I claim as new is:

1. A clamping device formed of a single unitary length of resilient material and comprising a loop portion, two extending portions from said loop portion lying substantially parallel to form legs, said legs embodying portions extending in a reverse direction beyond and outside said loop portion to form a handle, the axis of said loop portion extending crosswise of said handle, said loop portion lying in a plane parallel to said legs.

2. A clamping device formed of a single unitary length of resilient material and comprising a loop portion embodying at least one and onehalf turns, two extending portions from said loop portion lying substantially parallel to form legs, said leg portions embodying portions extending in a reverse direction beyond and outside said loop portion to form a handle, the axis of said loop portion extending crosswise of said handle, said portions forming said handle being united directly above said loop portion to form a closed handle, said loop portion lying in a plane parallel to said legs.

ARCHIBALD A. MACDONALD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,003,842 Williams Sept. 19, 1911 1,267,694 Ralston May 28, 1918 2,019,380 Andrews Oct. 29, 1935 2,442,701 MacDonald June 1, 1948

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