US531702A - Cleat for electric wiring - Google Patents

Description

(No Madel.)

J. H. SWIFT 82: W. P. MAINTIEN.

GLBAT FOR ELECTRIC WIRING.

No. 531,702. Patented Jan. 1, 1895 k w w. M

0 C M in \W VLQAQQM UNITED STATES PATENT @FEICE.

JOSEPH ll. SWIFT AND WILLIAM F. MAINTIEN, OF PLAINVILLE,

' MASSACHUSETTS.

CLEAT FOR ELECTRIC WIRING.

SPECIFICATION forming part of Letters Patent No. 531,702, dated January 1, 1895.

Application filed March 17, 1894- Serial No.504,082. (No model.)

To all whom, it may concern.-

Be it known that we, JosEPH H. SWIFT and WILLIAM F. MAINTIEN, citizens of the United States, residing at Plainville, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Cleats for Electric Wiring; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

Our invention relates to improvements in cleats for electric wiring; that is cleats adapted more particularly for interior work.

The object we have in view is to provide a cleat which is comparatively inexpensive; which can be readily located and secured in position, and so arranged that the wire or wires can be quickly introduced into and as easily removed from the cleat, and having the latter adapted to firmly clamp the wire in place without injury to the covering or insulation enveloping it.

To that end our invention consists essentially of a two-part cleat, arranged to be secured in place, having the contiguous faces of the said two parts substantially concavoconvex transversely and extending longitudinally of the cleat and further having curved wire-holdin g notches or grooves formed the rein, as will be more fully hereinafter set forth and claimed.

In the accompanying drawings, Figure l is a plan view, showing our improved cleats in use. Fig. 2 is a side elevation of the cleat, taken on line a w of Fig. 1. Figs. 3 audit are transverse sectional views, taken on lines a: m and 0 0, respectively, of Fig. 2, and Fig. 5 is a plan view showing a common form of eleat and the manner of parallel angular wiring by the use of such cleats.

In the drawings a indicates our improved cleat as a whole, consisting of the two parts I) and c. It may be made of any suitable material, such as wood, metal, papier mach, &c. We prefer, however, to make it of insulating material, such for example as porcelain.

The general form or shape of the cleat may be substantially as common to articles of this class.

Our invention resides in providing the contiguous or clamping faces of the cleat with curved or bent surfaces,that is to say the face of one of the parts, b, is provided with a longitudinally extending groove or depression, and the other, or fellow member 0 of the cleat, with a convex or slightly elevated face, the latter being the counterpart of the other face and forming a curved joint h, substantially as shown in Fig. 4. The cleat is further provided at or near each end with a transverse notch f arranged to receive the currentconducting wire m. The notch or recess f is practically concentric or parallel with and is cut transversely into the said joint k; that is the portion, or half h, of the notch formed in the piece I) of the cleat is concave, the other half k of the notch being convex, as clearly shown in Fig. 3. The form or shape of the notch transversely may be round, V-shape or any other suitable form adapted to receive the wires m.

The two parts of the cleat are made interchangeable only with respect to the location and arrangement of the notches and screwholes; that is the part b may he turned around, end for end, relatively to part a, and vice versa, but they are not interchangeably alike.

Our improved cleat is well adapted to be employed in parallel wiring where the direction of the wires is to be changed, say at an angle of ninety degrees, as represented in Fig. 1. In such case the outer or end portions of the notch f are cut away and made quite flaring, as shown at l in said figure. By means of this construction one cleat a only is needed to hold the pair of wires in place at the point where the direction of the wires is changed, whereas it has been usual heretofore to employ two cleats s, s, for the purpose, as shown by full lines in Fig. 5, although in some cases the cleat s and outer wire have been ar ranged as indicated by dotted lines in said figure.

By means of our invention it will be seen that when in use the two halves or parts 5, c, of the cleat are held in position laterally with comparatively little strain upon the holding down screws 6; the wires m are clamped in place without injury to the insulation covering them; the curved notchfserving to produce a slight bend in the wire and thus prevent the latter from endwise movement.

The contiguous or meeting faces h of our improved cleat are not level or plane, therefore they are more readily kept in place, as before stated. a

We claim as our invention and desire to secure by United States Letters Patent 1. The improved two-part wiring-cleat hereinbefore described, having the working face of one member longitudinally grooved or recessed and having the contiguous face of the other member the counterpart of said recessed face; the end portions of said cleat being provided with transversely arranged curved notches, as f, to receive the wires, and having" vertical holes extending through the cleat notches being well rounded and arranged to 30 7 receive and hold the bent portions of the current-conducting wires m.

In testimony whereof we have affixed our signatures in presence of'two witnesses.

JOSEPH H. SWIFT. WILLIAM F. MAINTIEN.

Witnesses:

GEO. H. REMINGTON, FRED. ARNOLD.

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