Gilbert Wells insulator patent

1510. "Insulators." A. GILBERT, G. WELLS. Dated April 13. 4d. The invention has for its object the production of an insulator so constructed as, without affecting the insulation, to secure the wire, so that, in the event of the wire breaking betwen any two posts, the other parts of the wire on the other sides of the posts between which the breakage occurs shall remain securely held as before. Fig. 1, represents a section taken through the insulator in a line with the wire; fig. 2, a transverse section. The insulator proper is of the ordinary bell shape. The part, C, has embedded in it at the time of making a screw bolt, D, so that when the wire, after being properly strained, is laid in the groove made for its reception in the part, C, the cap, E, of the insulator, which has a corresponding groove, and through the centre of which the bolt, D, passes, is placed thereon, and by means of the nut, G, is brought to bear tightly upon the wire, F, which is thus rigidly held between the grooves in the insulator, C, and cap, E. The bolt, D, is made of the shape as shown in fig. 2, so as to allow of the wire being readily placed in or removed from the insulator, and at the same time to bring the pressure of the nut directly over the centre of the cap.

Fig. 1.

Fig. 2.