US2069695A - Safety reel for a blasting cable - Google Patents

Description

SAFETY REEL FOR A BLASTING CABLE Filed March 27, 1935 ank WawmvEm-on ATTOR N EY Patented Feb. 2, 1937 l 2,069,695

UNITED sTATEs PATENT oFFicE 2,069,695v SAFETY REEL Fon A BLAs'rING CABLE Frank W. Brown, Elkridge, W. Va.

Application March 27, 1935, Serial No. 13,362

' 1 claim. (ci. 242-71) The invention relates to a blasting cable carrier opposed pair of spokes has a valley member inor reel and more especially to a safety reel for a n tegrally formed therewith and that the said spokes blasting cable. are of a substantially U-shaped formation. The The primary object of the invention is the prohub 5 is rotatably fitted upon a journal screw II 5 vision of`a reel of this character, wherein a short which is secured into the support A for the rota- 5 circuiting switch is carried thereby and the same tion of such reel when winding the cable I thereis closedwhen the cable is wound upon the reel on or on the unwinding of the cable therefrom. so that it is impossible for one to come in contact Made fast to the post A by a staple I2 is a chain with an electric current when attaching the cable I3, the same being adapted for engagement about ,0 to the blasting cap and such switch can not be one oi the spokes 6 at the inner side of the reel 10 opened until the cable has been worked ofi of the and be fastened by a lock Il so as to avoid theft reel thereby preventing injury to the user oi the of the reel, the chain I3 being freed from the reel reel, when the latter is to be turned.

Another object of the invention is the provi- Disposed crosswise of the reel and carried by l5 sion of a reel of this character, wherein the conan insulating base I5 upon hangers I6 suitably 15 struction thereof is novel in form and will support fastened to pairs of adjacent spokes is a short a blasting cable as employed by miners for blastclrcuiting switch I1 having the swinging blade ing purposes, the reel being made safe against I8 and with the switch are connected the curtheft and also, assures safety against accidental rent wires I 9 of the cable I0. The blade I8 of u injury when connecting the cable with a blasting the switch l1 is disposed so that when the blade go cap of the electric type. I8 is closed the cable when wound upon the reel A further object of the invention is the provi will prevent the opening of the switch by opension of a reel of this character which is simple in ing the blade I8 thereof until the cable l0 has construction, thoroughly reliable and eillcient in been worked off of the reel, the cable being enits operation, strong, durable and inexpensive to gaged in a, clip 20 carried by the hub 5 so as to 25 manufacture. avoid any strain upon the connections of the With these and other objects in view, the inwires i9 of this cable with the switch il when vention consists in the features of construction, unwinding the cable from the reel. combination and arrangement of parts as will be When the switch blade i8 is closed the current hereinafter more fully described, illustrated in is short circuited at the point oi the switch Il 30 the accompanying drawing, which discloses the so that connections of the cable with the electric preferred embodiment of the invention and pointblasting cap can be had without injury to a pered out in the `claim hereunto appended. son by contacting with the current wires charged In the accompanying drawing: Y with current as the current will not flow through Figure 1 is an elevation of a reel constructed the cap until the switch I1 is opened and this 35 in accordance with the invention. is accomplished on completely letting off the Figure 2 is a vertical transverse sectional View cable from the reel. thereof. At certain of the spokes 6 at the outer side Similar reference characters indicate correof the reel are hooks 2l for the engagement of do sponding parts throughout the several views in the cable therein at its outer free end when wound 4,0 the drawing. upon the reel for the holding of this end of the Referring to the drawing in detail,Adesignates cable. These hooks are also in the nature of generally a portion of a post or upright constitutwire members and have their ends coiled around ing a support for the reel embodying the present the ring members 8 at the opposite sides of the t5 invention and hereinafter fully described. spokes and contact with the coiled portions of 4.5

` The reel comprises a center hub 5 in the form said spokes to prevent any tendency of the spokes of a metal sleeve with which are connected inner moving on the ring members or the said ring and outer spaced radially disposed wire spokes 6 members moving circumferentially through the which are provided with coils 'I to embrace the coils of the spokes.

perimeter rings 8 of the reel. The opposed coils 1 On the ring 8 of the reel at the outer side 50 `each have `extending from one of their ends inthereof is a wire gate member 22 which when wardly rounded portions 9 that provide the valley thrown from the position shown by full lines members for permitting the seating of a blasting in Figure 2 to the position shown by dotted lines cable I0 in the reel on the winding of the said in said Figure 2 of the drawing will hold the cablethereon. It will be noted that each of the cable from riding from the reel and out of the 55 What is claimed is:

A reel for the purpose set forth, including a hub and spokes radiating from said hub, each of said spokes comprising, a wire member which is substantially U-shaped in plan and whose parallel arms have their ends xed to the hub, the

. rings being bowed said arms at their outer ends being coiled upon themselves, rings received through said coils, the connecting portions ot said arms between the in the direction oi' the hub to provide cable receiving valleys, hooks each comprising a wire member engaged with one of the rings and bent to provide a beak and arms coiled around said ring and in contact with the opposed sides of the coiled-portions of the arms of the spokes, and a coiled wire gate comprising an angle member approximately centrally mounted rings and designed to have one of its arms normally swung over the second or opposite ring.

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