US997043A - Cable-terminal. - Google Patents

Description

F. B. COOK;

CABLE TERMINAL.

APPLICATION FILED JULY 15,1909.

997,043, Patented July 4, 1911.

2 SHEETS-SHEET 1. .34

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CABLE TERMINAL,

APPLICATION FILED JULY 15,1909.

Y 997,043, Patented July 4,1911.

2 SHEETS-SHEET Z.

FRANK B. COOK, OF CHICAGO, ILLINOIS.

CABLE-TERMINAL.

Specification of Letters Patent.

Patented July 4, 1911.

Application filed July 15, 1909. Serial No. 507,773.

- The principal objects of my invention are,

to provide an improved cable terminal as will be hereinafter more fully described; and to provide an improved construction in porcelain cable terminals of the character specified. Other objects will be apparent from the following specification.

Heretofore it has been customary to make protected cable terminals of the closed-head type of either cast metal or sheet metal, and provide on such cable terminals fanning strips or distributin strips of either. wood or of metal. Such cable terminals are generally expensive to make and the metal employed in their construction is objectionable under certain conditions. I

In the improved cable terminal of this invention I have provided a protected cable terminal of the closed-head type made of two porcelain halves suitably placed -to- 85 gether, these halves having extended edges thereon adapted for fanning strips or distributing strips. Such a cable terminal, it will be readily seen from the following description, is very simple in its construction, very substantial and practical, and elimi- "nates the large metal parts used in older forms of cable terminals.

3 In the accompanying drawings illustrating the preferred form of my invention,

: cable terminal, with some of the lower porti'ons broken away; and Fig. 2 is a plan view of Fig. 1, with some of the portions removed. -Like characters refer to like parts in the 50. several figures.

By. reference to the drawings, 1 is a circular base plate having a rearwardly-eX-' tending portion 2 adapted to be mounted to a suitable support. The head of the cable 5 terminal, comprising two porcelain halves 3 3, is mounted on the base plate 1 by means Figure l is'a side elevation of the improved of angle irons 4 4 and bolts 32 32 and 33 33, the halves 3 3 being suitably bolted together by bolts 5 5 and 6 6 and having suitable gaskets 7 and 8, preferably of felt, therebetween as shown. Between the head 3-3 and the base plate 1 there may be placed a suitable gasket to form, a tight joint between these parts. At the top-ends of the halves 3 3 may be placed a top plate 34, suitably held in place by bolts 31 31, to cover the top end of the cable terminal. This plate 34, however, may be dispensed with if desired.

Each of the porcelain halves 3 3 is provided with a forwardly-extending edge 9 and a'rearwardly-extending edge 10 formed integral therewith, the edges 9 9 and 10 10 serving to support a cylindrical cover which may be placed down over the cable terminal and the circular base plate 1 in a manner well understood. Each of the edge extensions 1O 10 is provided with a series of holes 11 11 therethrough serving to accommodate aerial conductors leading up through an opening 12 in the base plate 1 and out through the holes 11 11 to suitable terminal members which will be hereinafter described.

Each of the porcelain halves 3 3 has two vertical rows of projections 13 13 thereon formed integral therewith, the front row of projections 13 13 carrying a series of fuse clamping springs 14 14 and a series of lightning arrester springs 15 15, and the rear row of projections 13 13 carrying a series of fuse clamping springs 16 16. The

springs 14 14 and 15 15 are held in place by hollow binding posts 17 17 which extend through the walls of the portions 3 3 into the opening 18 of the terminal head formed by the two halves 3 3 being placed together; these posts 17 17 being riveted over as at 19 19 against suitable metal washers 2O 20,

preferably of a soft metal such as lead, to securely hold the parts together.

arid 16 16 in a manner well understood, andalso a series of lightning arresters 24 24 placed between the corresponding springs The springs 16 16 are suitably held in place by 15 and ground strips 25 which are attached to the porcelain halves 3' 3 by suitable pins or rivets 26 26. Each of the ground strips 25 25 is provided with a series of tongue portions 27 27' adapted to fit in grooves of the corresponding lightning arresters and thereby hold same against lateral movement, in a manner well understood. It will-readily be understoodthat the fuses 23 23 and lightning arrcsters 24 24; may be removed, or replaced by others, as desired.

The base plate 1 carries a nozzle 28 the upper end of which is preferably formed outwardly against the plate 1. as shown at 29 to suitably secure the nozzle28 in place. The nozzle 28 opens into the opening 18 of the terminal head and is for accommodating cable conductors extending up through the nozzle 28 and the base plate 1 into the opening 18 of'the terminal head, in a manner Well understood. The cable conductors from the opening 18 are distributed out through the hollow binding posts 17 17 in a manner well understood, and are secured to the outer ends of these posts 17 17 by solder which tightly seals the openings in the posts 17 17-. I The spring members 14 14 and 16 16 have inwardly-projecting lugs 30 30 fitting over the projections '13 13 as shown, to prevent these spring members from turning on their mountings.

When it is desired to separate the halves 3 3 of the cable terminal for distributing the cable conductors out through the hollow binding posts 17 17, such separation may be accomplished by loosening or removing the bolts 5 5, 6 6,-31 31 and 32 32, vwhereupon the halves 8 3 may be readily separated as desired. Vhen the cable conductors have been distributed as desired, the parts may be again bolted together as described to condition the terminal foruse. If desired, a suitable insulating compound or material may be poured into the opening 18 of the terminal head to suitably seal the cable conductors in the terminal. head and prevent any moisture from penetrating into the end of the cable or into the coverings of the cable conductors.

It will be readily seen that the projections 13 13 greatly increase the insulation between the adjacent spring members of the cable terminal, because they provide an increased extent of surface between such adjacent spring members.

I do not wish to limit this invention to all of the particular details herein set forth, as various modifications of same may be made without departing from the scope of the appended claims.

lVhat I claim as my invention is:

1. A cable terminal of the character set forth having a head portion composed of two halves separately secured together to form the head and each having front and rear vertical edges for forming guides for a cover, suitable protective apparatus mounted on the said halves, the two rear edges of the said halves being separated from each other to form two separated supports for the cover in the rear of the head, and the two front edges of the said halves being secured together to form but a single support for the cover in front of the head.

2. A cable terminal of the character set forth having a head portion composed of two halves separably secured together to form the head and each having front and rear vertical edges for forming guides for a cover, the two rear edges of the said halves being separated from each other to form two separated supports for the cover in the rear of the head, and the two front edges of the saidhalves being secured together to form but a single support for the cover in front of the head.

As inventor of the-foregoing I hereunto subscribe my name, this 10th day of July, 1909.

FRANK B. COOK.

lVitnesses FREDERICK It. PARKER, Mannie J. BALL.

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