US1530999A - Telephone switch - Google Patents

Description

March 24. 1925. 1,530,999 7 C. L. GOODRUM TELEPHONE SWITCH Filed May], 1923 2 Sheets-Sheet 1 I /7V6/7f0/i' 074M615 L 6001/0/22 M 4 0] March 24. '1925.

1,530,999 I C. L. GOODRUM 1 TELEPHONE SWITCH Ix Filed May], 1923 2 Sheets-Sheet 2 4 7 2d Patented Mar. 24, 1925.

UNITED STATES PATENT. OFFICE.

CHARLES I. GOODRUM, 013 YORK, N. .Y., ASSIGNOR T0 \VESTERN ELECTRIC COM.-

PA'NY, INCORPORATED, OF NEW, YGBK, NJ Y A CORPORATION OF NEW YOBK.

mennrnonn swrToH.

Application. filed May 2, was. Serial No. 637,106.

To all whom it may concern: Be it known that I, CHARLns L. GooDnUM,

a citizen of the United ,States,residingat New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Telephone.

Switches, of which the following is a full, clear, concise, and exact description.

This invention relates to switches of the type adapted for establishing connections in an automatic or semiautomatic telephone system. More particularly it refers to improvements in switches of the general character such as that'shown in the application of J. N; Reynolds, Serial No. 486,367, filed July 21, 1921, and in the British patent to Western Electric Company, Limited, No. 183,438, accepted September 6, 1923. i

Heretofore, .it has been customary in switches of this type to provide an insulating support whereby the sets of contacts were mounted collectively. This method necessitates the disturbance of all sets of contacts associated with the insulating member whenever one or more sets are to be repaired or replaced.

The object of this invention, therefore, is

to mount each setzof contacts individually and to effect the removal or replacement of each set as the occasion may arise without disturbing any other sets of contacts mounted on the switch.

A feature in'this invention resides in the provision of unitary sets of active and passive contacts and a portion of the contact,

' tion and the claims appended thereto, ref

erence being had to the accompanying drawings, in which Fig. 1 is a partial top as sembly view of said switch, Fig. 2is a left side view thereof,F1g. 3 is a back view of telephone 1 on upright supports and extend at right angles therefrom, in operable relation with an operat ng mechanlsm adapted for selectively moving the-active contacts of each set into contacting engagement with their associated sets ofpassive contacts. 1

Each set of active contacts generally comprises a number of bare wires 21, 22, 23, which are associated'with a similar number of passive contact wires 24, 25, 26. Each set of active and passive contacts are arranged between'a number of superposed insulating str-ips27, 28, 29 and-30 which are held securely in position by means of a channel-shaped'trame .31. .On two opposite sides of frame .31 and integrally formed therewith, extend the arms 32 and 33 on which is fixedly arranged a card 34 having in its upper portion a plurality'of V-shaped recesses 15,- 16 and 17 in which the passive contacts 24, 25 and 26 are positioned. In the downward portion of the card 34 there is provided a number of slots 12, 13 and. 14 in which the active contacts 21, 22 and 23 are located in contacting relation with the flattened end portions of their associated passive contacts 24, 25 and 26, respectively.

The contacts of each unitary set comprising the wires 21, 22, 23 and 24,25, 26,- protrude through an apertured card 35 which is slidably arranged between the fixed card 34 and the inwardly bent portions 36 and 37 of arms 32 and 33, respectively.

On two opposite sides of frame 31 and integrally formed therewith, there extends at right angles thereto, the stops 38 and 39 which are provided for readily locating and securing the frames 31 in position on their supporting members.

The unitary sets of contacts are generally arranged in rows on upright supports shown in Fig. 3 which are disposed parallel to each other and securely held on a cross bar 40 attached to the switch frame (not shown). On two oppositev sides of supports 20 there are provided a number of similarly disposed recesses 19 in which the unitary set of contacts are positioned. On eachsupport 20 there is slidably arranged a latching member 41 each having a number of pro;- jections .42 adapted to engage the stops 38 i and 39 of each frame 31 in one row and lock hooked on the bar 43 and is held in posi-s tion on arm 44 by means of a screw 46 and a stop 47. i 1 I For each bar 43 there is provided a pair of electromagnets 48 and 49 each associated with an armature 50 and 51', respectively, which are arranged on the bar at different angular distances with reference to the operating magnets. Armature 51 is pivotally arranged on the bar43 and is adapted to move it one step in response to the energization of its respective electromagnet 49. Armature 50 is rigidly fastened on the bar 43 and is adapted to move the bar another step in response to the energization of its respective electromagnet 48-.

Fig. 4 shows an arm 44 and the'resilient member 45 carried thereby in normal nonoperated'position. The first step of bar 43 imparted by the energization of magnet 49 moves the resilient member 45 to position shown at 53 in operable relation with its associated arm 56. bar 43 imparted by the energization of magnet 48 moves the resilient members in position shown at 54.

For each vertical row of active contacts there is provided a vertical bar 55 each provided with a plurality of arms 56 .and an arm 57 which is in operable relation with an armature 58 adapted to rotate the bar in response to each energization of its respective magnet 59. Each arm 56 is as sociated with a card 35 and a resilient member 45, but it is to be noted that normally member 45 is free to move along theside of the card 35 without engaging it. When the horizontal bar 43 is rotated one step A second step of the lifting members 45 are moved in operative relation with their associated arms 56 wherein a movement of a bar 55 moves its respective member 45 in en-gageable relation with the card as shown at 60 in Fig. 4 and the second step of bar 43 is eiiec tive to move the selected card for effecting the interengagement between aset of active and passive contacts.

After the connection has been established, the ma net 59 may be released to permit the ver ical bar 55 to restore to it's normal osition. The connection is maintaine by the continued energization of the magnet 48, which holds the arm 44 in its rotated position against the resilient member 45.

What is claimed is: I I

1. In a switching device, a set of active and passive contacts arranged between strips of insulating material, a frame for holding said contacts in adjusted position, a pluralitfy of notched supports. for said frame,

and means "carried by each of said supports for holding said frame in position thereon.

2. In a switching device, a set of active contacts, a set of passive contacts, said contacts arranged between superposed insulating strips, a frame for securing Said strips, notched supports for locating said frame, and lockingimeans on each of said supports for holding said framein adjusted position thereon.

3. In a switching device, a set of passive contacts, a set of active contacts arranged in spaced relation on insulating strips, a channel shaped frame for securing said contacts'between said strips, a pair of notched supports for said frame, a latching member arranged. on each of said supports for locking said frame in adjusted position thereon.- v

'4. In a switching device, a plurality'of superposed unitary sets of active and passive contacts, notched supports therefor, a latching member slidably-arranged on each of said supports for locking said contact sets thereon collectively.

5-. In a switching device, unitary sets of active and passive'contacts arranged in rows, a plurality of supporting members therefor, each of said members being common to two rows of said sets, means arranged on said supports for locking said contact sets in one of said rows collectively.

6. In a switching device, sets of active and passive contacts arranged in rows, supporting members therefor each common to a plurality of sets in each of said rows, and means arranged on each of said membersfor locking and releasing said sets in a number of said rows. a

7. In a switching device, a unitary set of active and passive contacts arranged on mao ses a a frame, supporting members extending each of said members cooperating with said from two opposite sides of said frame for stops for holding said contacts in position supporting the free end portion of each of thereon. 10 said contacts, a pair of stops integrally In witness whereof, I, hereunto subscribe 5 formed with said frame and extending at my name this 4th day of May A. D., 1923.

right angles relative to the direction of said supporting members, and means on CHARLES L. GOODRUM.

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