US 663489 A
Description (OCR text may contain errors)
No. 663.489. Patented Dec. il, I900. W. B. CLEVELAND.
(Application filed Feb. 7, 1900.)
Fla l- Wztuessea Inventoz;
UNITED STATES PATENT CFFICE.
WILLIAM B. CLEVELAND, OF CLEVELAND, OHIO.
SPECIFICATION forming part of Letters Patent No. 663,489, dated December 11 1900.
Application filed February '7, 1900 Serial No. 4,356. KNO modet To all whom it may concern:
Be it known that LWILLIAM B. CLEVELAND, a citizen of the United States, and a resident of Cleveland, county of Cuyahoga, and State of Ohio, have invented a new and useful Im pro vement in Electrical Con nect-ions,of which the following is a specification, the principle of the invention beingherein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.
My invention relates to devices comprising two or more electrical conducting mediums united to form a homogeneous conductor, and has fol-its object the production of such combination in a mannersuch as to combine the greatest possible economy of manufacture, durability, and conductivity.
Said invention is particularly adapted for nsein unions of such conducting mediums in which one is fixed and the other is subject to vibration or other movement in a direction transverse to its axis; and it consists of a structure hereinafter fully described.
The annexed drawings and the following description set forth in detail certain means embodying the invention, such disclosed means constituting but one of various mechanical forms in which the principle of the invention may be used.
In said annexed drawings, Figure I represents a vertical axial cross-section of a union embodying my invention and illustrating same as applied to a cable consisting of a plurality of conductors and a bond or other conducting body to which it may be desirable to attach said cable, and Fig. II represents a plan view of such union.
The connection consists of the two conductors A, the cable, and B, the bond-both usually constructed of the same metal. The bond B consists of an end tubular portion 1) and a spatulate portion Z), united by an intermediate and integral portion 19 increasing in thickness from portion 1) toward portion b. The cable enters the end of the tubular portion bof the bond and passes therethrough, the metal of said portion normallysurrounding the cable, the strands of which are of normal size and shape at this point. Passing through the intermediate portion b of the bond these strands are compressed into a flattened form as they pass through the portion b and are by such construction more intimately associated with each other and the bond. This intimacy of association continues to increase until the cable reaches the spatulate portion 1) of the bond, where the intimacy is of a degree such as to incorporate the strands in such portion and form a homogeneous structure of uniform density.
Such above-described structure may be produced by means of the application of heatand pressure and the use of suitably-formed dies, as will be apparent to any one skilled in the art. The incorporated member hence retains its normal diameter and form at the point of emergence from the bond, so that when the former is of greater flexibility than the bond and the latter is rigidly attached to a fixed object bending occurs at such point of emergence and in a part of the incorporated conductor of normal condition when it is subjected to transverse movement, preventing such bending in a flattened or compressed and hence weakened portion of said conductor. The metal at the point of bending is hence in the best possible condition to withstand the strains occasioned by such bending and maintains its integrity for the longest possible time under the conditions of strain before brealc ing. In the case of a cable made up of thin Wire, and hence comparatively weak conductors, this increased durability is especially marked as compared with a cable whose entire incorporated portion is intimately united with the bond by compression and which is flattened immediately upon entrance into the bond.
Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means covered by any one of the following claims be employed.
I therefore particularly point out and distinctly claim as my invention- 1. In an electrical connection, two conductors, the one incorporated in the other in varying degrees of intimacy, and forming at one portion a homogeneous structure with the other, substantially as set forth.
2. In an electrical connection, two conductore, the one homogeneously united with the doctor and normally surrounding same at ils point of entrance, substantially as set forth.
5. In an electrical connection, the com bination with a plurality of conductors, of a bond incorporating same, said bond normally surrounding said conductors at their point of entrance and homogeneously united therewith 20 at its inner portion, sul'lstantially as set forth. Signed by me this 30th day of Jan nary, 1 900.
WILLIAM B. CLEVELAND. Attest:
D. T. DAVIES, A. E. MERKEL.