Telephone-Switch Page: 2 of 4
[1], 3 p. : ill. ; 23 cm.View a full description of this patent.
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UNITED STATESPATENT OFFICE.
TIMOTHY S. MOUNT, OF RHOME, TEXAS.
TELEPHONE-SWITCH.
No. 851,994. Specification of Letters Patent. Patented April 30, 1907.
Application filed September 19, 1903. Serial No. 173,762.
To all whom it 7Tha7y coibcern: 'this block. The contacts are mounted on
Be it known that I, TIMOTHY S. MOUNT, a the block 6 between said block and the wall 5
citizen of the United States, residing at of the box. The bell contacts 13 and 14 are 55
Rhome, Texas, have invented certain new shown in Fig. 2, the face of the block 6 being
5 and useful Improvements in Telephone- shown in that view. Wires 15 and 16 are
Switches, of which the following is a specifi- connected with the contacts 13 and 14 re-
cation. spectively and then passed back through the
This invention relates to switches for tele- block 6. The wire or line 17 is connected to 60
phones and more particularly to shifting de- the mechanism of the bell 18 and to the gen-
io vices for short-circuiting certain classes of erator 19. A shunt wire '20 is connected to
lines, and the object is to provide a system of the generator 19 at two different points and
cutting off communication in what are called the wire 15 is connected to the shunt wire 20.
"party" lines whereby conversations will be This completes the bell circuit of the tele- 65
private on such lines and whereby the capac- phone from the contacts 13 and 14. The
15 ity of the lines is increased,--making con- block 6 carries the line contacts 21 and 22.
versations more distinct and clear. The circuit is connected and disconnected
Other objects and advantages will be fully by means of the hook 11 which is pivotally
explained in the following description and mounted in the box 5 and a spring 23 is pro- 70
the invention will be more particularly vided for pressing the hook 11 up when the
20 pointed out in the claims. receiver 24 is removed from the hook. The
Reference is had to the accompanying line contact 22 is connected with the hook 11
drawings which form a part of this applica- by means of a line 25. The line contact 21
tion and specification. is connected with the receiver 24 by means of 75
Figure 1 is a diagrammatic view in detail, the line 26 which line also connects with the
25 shoving a broken section of a box and show- secondary induction coil 27' and primary in-
ing the shifting block partly in section. Fig. duction coil 27 and the transmitter 28. The
2 is a face view of the shifting block. Fig. 3 transmitter and the batteries 29 are connect-
is a view of the interior of the side of the box ed by means of a wire 30. The drawings 8o
on which the contacts are mounted. show two contacts for the hook 11. One
30 Similar characters of reference are used to contact 31 is connected with the secondary
indicate the same parts throughout the sev- induction coil 27' by means of the line or wire
eral views: 32. The other contact 33 is connected with
This invention consists in an attachment the batteries 29 by means of the line or wire 85
to be applied to the telephone boxes already 34. When the receiver is removed from the
35 in use. hook 11 the hook will rise up and rest against
The numeral 5 indicates a box of usual the contacts and thus complete a circuit
construction. A shifting block 6 is pivoted through the line wires 1 and 2 or through the
to the inside of the box 5 by means of a pivot line wires 3 and 4, as may be determined by 9o
bolt 7, holes S and.9 being made in the block the shifting block 6. The wire 1 is connected
40 6 and the box 5 for the bolt 7. The box 5 to a spring contact 35. The wire 2 is con-
has, instead of the usual vertical slot, a V- nected to the spring contact 36. The line 3
shaped slot 10 for the hook 11 to move up is connected to the spring contact 37, and
and down. The block 6 has also a slot 12 the line 4 is connected to a spring contact 38. 95
for the hook 11. The block 6 is rocked on When the block 6 is in its normal position,
45 the pivot bolt 7 by reason of the V-shaped that is, when the telephone is not in use, it
slot 10 which causes the hook 11 to move to stands in a vertical position and the contacts
the left or right as the hook 11 goes up in the 36 and 38 engage the line contact 39 so that
left or right branch of the slot 10. The hook the circuit through the line wires 2 and 4 is Ioo
11 going up in the slot 12 of the block will complete or unbroken. At the same time the
50 cause the slot 12 to register with the slot 10. circuit through line wires 3 and 4 is complete
The block.6 carries contact making devices through the bell 18 by reason of the contacts
and all the box lines or wires are connected to 13 and 14, contact 37 resting against contact
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Mount, Timothy S. Telephone-Switch, patent, April 30, 1907; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth513299/m1/2/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.