US959243A - Desk-telephone standard. - Google Patents

Description

C. T. MASON. DESK TELEPHONE STANDARD.

APPLICATION FILED ,001220, 1909.

Patented May 24, 1910. kg SHEETS-4mm' 1.

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APPLICATION FILED 00T. zo, 1909.

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CHARLES T. MASON, OF SUIVITER, SOUTH CAROLINA, ASSIGNOR TO THE SUMTER TELEPHONE MFG. CO., OF SUMTER, SOUTH CAROLINA, A CORPORATION OF SOUTH CAROLINA.

DESK-TELEPHONE STANDARD.

Specification of Letters Patent.

Patented May 24, 1910.

To all whom 'it may concern:

Be it known that I, CHARLES THOMAS Ma soN, a citizen yof the United States, residing at Sumter, in the county of Sumter and State of South Carolina, have invented certain new and useful Improvements in Desk- Telephone Standards; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the ligures of reference marked thereon, which form a part of this specification.

My invention relates to a desk telephone standard and consists of an improved and simplified structure of few parts which may be easily and quickly assembled. The transmitter may be permanently attached to the outer casing and need not be removed when inspecting the hook mechanism, which is removably mounted inthe casing.

The following description read in connection with the drawings will enable those skilled in the art to which my invention relates, to understand its nature and to construct same in the form as shown, but it will be understood that my invention is not limited to the precise form herein described, as various modifications and changes' can be made by those skilled in the art to carry out my invention without departing essentially from the features herein claimed by me.

Figure 1 is a sectional view of a complete stand. Fig. 2 is an elevation of the hook mechanism removed from the casing. Fig. 3 is a section on line y-Fig 1. Fig. 4, a view of the upper portion of the casing showing the slot for the hook mechanism. Fig. 5 is a view of the interior of the base, showing the cord terminals.

The same figures of reference designate the same parts wherever they are shown.

The casing consists of the stem 1, the base 2, and the transmitter support 3, these may be in one piece or joined together in any suitable manner. The transmitter support 3 has a hollow center opening into stem 1 to permit the passage of the conducting cords 25 and 26, which connect toa transmitter of the ordinary type, mounted on support 3. The upper end of stem 1 is adapted to receive a metal plug 4 supporting a plate 5. This structure is kept from rotating by the off-set 6 which engages a slot 7 formed in the top of stem 1.

A unit hook switch mechanism of any suitable type may be mounted upon plate 5. A preferred type is shown in the figures. This consists of the usual hook lever 8 the inner end pivoted at 9 and the outer end adapted to project through the tubular stem 1 as shown in Fig. 4, the lever being shown at 8 in this figure. The inner end of this lever has a downwardly extending arm 10, equipped with a pin projecting through an opening in the supporting plate 5, and engaging a suitable spring 11. The width of the opening through which this pin passes determines the movement of the hook lever, which is, therefore, made independent of any adjustment of the height of the slot. The portion of the lever near the pivot is provided with insulated pins 12 and 13 which i bear upon the hook springs 14. The tension of spring 11 is such that when an ordinary telephone receiver is hung on the forked portion of hook lever 8, same will be depressed and the contact springs 14 will be separated from each other and held out of contact. When the receiver is removed the lever 8 rises, pin 12 recedes from the long contact spring while pin 13 presses on the short contact spring, thereby compressing the springs together, closing the contact points. The contact springs are insulated and securely held in position by suitable insulating pieces 15 which are fastened in the usual manner to a bracket 16 riveted to plate 5.

To assemble the complete instrument after the transmitter has been attached to support 3, the plate 5 carrying the entire hook structure is pushed inside of stem 1 as far as it will go, off-set 6 in the metal plug 4 serving to locate the hook switch lever in its proper position, and to close the top of slot 7 in npright 1, as shown in Figs. 3 and 4. The screw 17 is then inserted through the metal felt covered bottom 18 and engages the bottom of plate 5 which is shaped as shown in section at 35. This screw serves to hold the entire hook mechanism as well as the bottom of the stand in position. It will be observed that the edges of the felt are securely clamped between the head of the screw 17, the bottom 1S, and the edge of the base 2.

lVires with connecting clips shown at 19, 20, 21, are attached to the hook contact springs, and when the hook mechanism is in place these may be clamped or soldered to suitable terminals Q2, 23, and 2%. Wires 25 and 2G connecting with the transmitter are also soldered or otherwise permanently attached to the proper terminals.

The receiver and circuit connecting` cords 33 and 31 are provided with suitable tips 2T, QS, 29, 30 and 31, adapted to be clamped in the terminals to which the connecting wires or cords 19, 20, 21, and 2G terminate. 1twill be understood that any circuit arrangement` may be used, or that more terminals, hook contact springs, and cord conductors may be used than indicated.

From the foregoing it will be evident that the cord connections may be readily examined without disturbing any of the operative parts ot the stand by removing screw 1T, and bottom 1S Without disturbing any other part; and if it is desired to remove the hook switch for inspection, it is only necessary to loosen wires 19, Q0, and 21, whereupon the entire hook mechanism can be withdrawn trom the stem without interfering with the t ansmitter connections or without loosening the cord tips, or having to pull the cords through the bushing 32, which eliminates wear and danger ot breaking the cord, always present from this source.

Having thus described my invention, I claim and desire to secure by Letters Patent the following:

1. A one piece desk stand casing, a transmit-ter supported thereon, the casing having an opening for the insertion of a unit switch hook mechanism, a unit hook switch mechanism, and means for supporting the hook mechanism to allow of itsremoral without disturbing the transmitter connections.

2. In a telephone desk stand, the combination ct a suitable base, a stem carried thereby, a transmitter support attached to said stem all forming a casing, a transmitter attached to the support, a hook mechanism placed within said casing and closing the top thereof, means for attaching the hook mechanism to the casing, terminals mounted within the base and electrical connections between the terminals hook mechanism and transmitter.

3. in a telephone desk standard, a base tubular easing and transmitter support forming one structure, in combination wit-h a hook mechanism adapted to be inserted in the top oit said casing, and means for removably supporting` said hook mechanism therein.

In testimony whereof I hereunto atlix my signature in the presence of two witnesses.

CHARLES T. MASON.

lVitnesses E. M. HABL, F. C. MANNING.

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