US1763060A - Telephone-exchange equipment - Google Patents

Description

June 10, '1930. D. c. MEYER TELEiI IONE EX CHANGE EQUIPMENT Filed May 13, 1927 //y VEN TOR 0151/55/17 61 MEYER ,4 TTORNEY Patented June 10,; 1930 UNITED, STATES PATENT OFFICE DELIBERT C. MEYER, OF EAST ORANGE, NEW J'ERSEY, ASSIGNOR TO BELL TELEPHONE LABORATORIES, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION NEW YORK TELEPHONE-EXCHANGE EQUIPMENT Application filed May 13, 1927. Serial No. 191,002.

This invention relates to telephone eX- change equipment and more particularly to improvements in distributing frames.

The term distributing frame is well known in the art of telephony and is applied to that part of central office equipment which is employed as a means for uniting incoming line wires with Wires or conductors leading to the switchboard apparatus.

As is clearly shown in Figs. 2 and 3 of Patent No. 816,847 to F. B. Cook, April 3,

V 1906,a distributing frame consists primarily rated. According to usual practice, holes are I of coordinately disposed supporting. members, at the intersections of which are placed jumper rings, which provide an efficient means for supporting wires which interconnect terminals, the positions of which, on the distributing frame, may be widely sepa drilled in the various supporting members to provide means for positioning the jumper rings and clamping them in posit-ion on the frame by means of nuts and bolts. 7

It is the object of this invention to provide an improved means for securing jumper rings to distributing frames. This object is accomplished by the provision of a distributing 1 or jumper ring having a hooked portion adapted to engage a flangeon a distributing frame member, and a clamping member having a hooked portion adapted to engage anotherflange of the same member and coact with said ring to 'securelyhold'the ring position.

Referring to the drawings, Fig. 1 is a perspective view, partly in section, of a portion of a horizontal supporting'member of a distributing frame, with a' distributing rlng mounted thereon.

Fig. 2 is a similar perspective view of a modified form .of'the' invention in which the distributing ring'is mounted at a differ-v ent angle relative to the supporting member.

Fig. '3 is an BlGVatlOIHLl VIBW of a portion of a distributing frame with the distributing or supporting member 4, and a spring clamp 5 with its hooked ends engaging the other flange of bar 4 and its body engaging ring 2,

in such a manner as to securely clamp it. in position on the channel bar. The portion of a distributing frame as shown in Fig. 3 con sists of the channel bars 4 secured to and coordinately disposed with respect to a vertical supporting member 6. The clamping spring 5 is provided with aninverted hump'or bulge 8 which engages a bend in the ring'member as shown, whichprevents slipping of the clamping member and provides a tension which permits :thering to be more easily placed on the frame and more firmly secured thereto.

This arrangement permits a quicker assembly of the distributing frames in that fewer operations are required to attach a also obviates the necessity of drilling holes in the framework and the'consequent weaken ing thereof. With this arrangement a j umperrlng may be removed or its position changed on the supporting member with very little difiiculty. I What is claimed is:

. .In a mechanical device for mounting on a support, said support and said spring clamp coacting to efiect a resilient fastening means for securing the "device to the flanged member. l a

In witness whereof I hereunto subscribe 7 my name this 12th day of May, A. D. 1927.

DELBERT C. MEYER.v A

rings in position on the horizontal frame members. a I

In detail, the drawings show a distrlbuting ring 2 with its hooked portion 3 in engagement with a flange of the channel bar loo.

jumper ring to the supporting members, and 7 V

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