US721734A - Wire-holder for trolley-wires of electric railways. - Google Patents

Description

N0.72l,734. PATENTED MAR. a, 1903.. f L, VON ORTH. I WIRE HOLDER FOR TROLLBY WIRES 0F ELECTRIC RAYILWAYS.

LPrL-Ioumn FILED 111:0. 2s, 1901. no MODEL.

m: NORRIS PETERS c0, PHOTOJJTNQ, WASHINGTON, u, 0..

' cording to Fig. 2 only inthat the lateral flexi- UNITED STATES PATENT OFFICE.

LUDWIG VON ORTH, OF BERLIN, GERMANY.

WIRE-HOLDER FOR TROLLEY-WIRES OF ELECTRIC RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 721,734, dated March 3, 1903.

Application filed December 26 1901 To aZZ whom it may concern.-

Be it known that I, LUDWIG VON ORTH,(lOctor of philosophy, a citizen of the German Eur pire, residing at 9 Ludwigskirchstrasse, Berlin W., Germany, have invented a new and useful Improvementin Wire-Holders for Trolley-Wires of Electric Railways, of which the following is a specification.

My invention relates to wire-holders for trolley-wires of electric railways; and it consists in fitting to the ordinary wire-holderwireholding devices which are connected in a yielding manner with the wire-holder and secure the wire at points which are located on the farther side of the points of attachmenton ordinary wire-holders.

The invention is shown in the accompanying drawings. a r

Figure 1 is a side elevation of an ordinary wire-holder with the end of a wire held thereby. Fig. 2 is a side elevation of a wire-holder according to my invention. Fig. 3 is a modification of the wire-holder shown in Fig. 2.

The part marked a is a non-flexible wireholder of the ordinary kind,such as that shown alone in Fig. 1.

b is a flexible metal piece which is connected to the holder CL and is provided with claws c, 0 and c dis the conducting-wire, which is held by the holder a and also by the claws 0', c and 0 On the drawings there is only one metal piece I) provided on one sideof the holder; but, as a rule, I shall use such a metal piece with claws also on the other side of the holder, so that the conducting-wire d will be gripped on both sides of the holder o by claws c. The claws 0, c and c are not rigidly connected to the holder a, but can slide in relation thereto for a purpose to be hereinafter described.

The modification shown in Fig. 3 of the new wire-holder differs from the arrangement acble parts 19 are not connected directly to the middle part a, but are secured to separate insulators e.

The apparatus acts as follows: The metal piece b, with the claws 0', c and c certainly takes part in the oscillations of the wire d,

. $erialNo.87,157. (NomodeL) but offers a certain resistance thereto, so that the oscillations are diminished. The result is that the wire breaks less frequently than when it is held by the ordinary holder a; but in cases in which the wire breaks it is held by the claws 0, c and 0 as the breakage is always close to the holder a, as has been shown by experience.

In contradistinction to known arrangements for preventing damage when the wires break, by cutting off the current from the broken wires, in which case it must be assumed that an adjacent Wire is present that is connected to the other pole, by my construction of wire-holder only the falling of broken wires is prevented without having to rely on the cooperation of another wire in order to out off current from the broken wire.

holder can be effected in any desired manner.

Furthermore, I may arrange on each side of the middle holder two or more lateral holders b, since the only essential part of the in- .vention is that in addition to the holder at at least one auxiliary holding device is used for the wire, which device can take part'in the oscillations of the wire. This is necessary in order that the fracture of the wire may take place always between the point of attachment to the holder a and that of the auxiliary holding device.

Having now particularly described and ascertained the nature of my invention and in what manner the same is performed, I declare that what I claim is- 1. In a holder for electric-railwaytrolleywires, the combination of a non-flexible holder adapted to support the strained wire, and an auxiliary flexible holder connected at one end to the non-flexible holder and at its other end to the wire and being normally under no said flexible holdenbeing normally under no 10 strain from said wire, substantially as and strain from said wire, substantially as and for for the purpose set forth. the purpose set forth.

2. In a holder for electric-railway trolley- Signed this 11th day of December, 1901, at 5 wires, thecornbination ofanon-flexible holder Berlin.

adapted to support the strained wire, and an LUDWIG VON ORTH. auxiliary flexible holder connected at one end Witnesses: to the non-flexible holder and provided at its HENRY I-IASPER,

other end with claws connected to the Wire, WILLIAM MAYNER.

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