Improvements in or relating to Telephonic Apparatus.
Year: 1896

page_text: Date of Application, 6th Oct., 1896--Accepted, 12th Dec., 1896
COMPLETE SPECIFICATION.
Improvements in or relating to Telephonic Apparatus.
I, PHILIPP JOHANN BÖSE of 18 Jüststrasse Bremen in the Empire of Germany,
Expert, do hereby declare the nature of this invention and in what manner
the same is to be performed to be particularly described and ascertained in-
and by the following statement :-
The present invention relates to telephonic apparatus comprising a transmitter
and a receiver or a pair of receivers. In apparatus as heretofore constructed it is
intended that the receiver when not in use should be suspended upon a hook
connected to the transmitter so that the hook is pressed down by the weight of the
receiver and, makes contact with the call bell; when the receiver is taken off the
book the line wire is brought into circuit.
It is not unfrequently the case that persons omit to hang up the receiver after
use, also that the apparatus is sometimes used by persons who are ignorant of the
method of its use. On the other hand to hold the receiver to the ear for a long
time is tedious and where two receivers are used both hands are occupied in holding
the receivers and are not free for holding papers etc.
These inconveniences are removed by the present invention in which the
receivers are held automatically.
In the annexed drawing Fig. 1 shows in front elevation a telephone call box.
with the improved fittings. Figs. 2 to 4 are detail views of the same fittings.
To the right and left of the call box above and below are fitted the wall plates B
having eyes b in which are journalled the pivots of the rods C. Around the
pivots c are helical springs d the ends of which extend on the one side against the
plates B and on the other in slits in the pivots c. Caps d' cover these springs.
The rods C are prismatic and on them slide loosely the sockets F of the
tubes G. The outermost tube G is attached to the socket F, the others slide in
the outer tube and form in effect a telescopically sliding arm extending rect-
angularly from the rod C and having vertical adjustment thereon, remaining in
the position in which they may be placed owing to the leverage exercised by the
weight of the receivers shown in dotted lines suspended in the hooks G' at their
ends. The springs d are so wound as to tend to turn the rods C so as to move the
receivers together towards the call box.
K represents the movable hook (the other being a fixture) on which one of the
receivers is suspended in the construction used heretofore. On the rod C adjacent
to this hook is an arın H the end of which is inclined in such a way that when the
springs d turn the rod C as aforesaid the arm H rides over and depresses the hook K
to the same extent as if the receiver were hung thereon. When the user of the call
box pushes aside the receivers, these, adjusted by him to suit his height and distance
from the transmitter, are held to his ears by the springs d operating to turn the
rods C, but the arm H has moved off the hook K which has therefore risen making
contact with the line wire.
When the call box is constructed expressly for the fittings herein described it is.
of course unnecessary for the lever K to have the form of a hook, it may end in a
knob or any suitable device to be operated by the arm H.
After the conversation is completed the removal of the speakers head will enable
the receivers to move together under influence of the springs d, causing the arm H
to automatically press down the hook K and bring the call bell again in circuit..

page_text: The outward displacement of the receivers is limited by the projections 61 on the
rods C.
Having now particularly described the nature of this said invention and in what
manner the same is to be performed I declare that what I claim is ;-
In telephonic apparatus of that kind in which a hook, or equivalent device, is
usually employed for suspension of the receiver so that its weight operates in the
manner herein described; on one or both sides of the apparatus vertical rotary
rods with laterally projecting arms adapted to hold the receiver or receivers in
combination with springs or equivalent devices tending to turn said arms inwards
and an arm movable therewith for depressing the said hook or equivalent device
when said arms are turned inwards as aforesaid and for releasing the same when the
arms are turned outwards for applying the receiver or receivers to the ears.
Dated this 6th day of October 1896.
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C.,
Agents to Applicant.