Improvements in or Appertaining to Telephone Transmitters.
Year: 1889

page_text: Date of Application, 12th July, 1889
Complete Specification Left, 9th Jan., 1890-Accepted, 15th Feb.. 1890
PROVISIONAL SPECIFICATION.
Improvements in or Appertaining to Telephone Transmitters.
I, JOSEPH CUTHBERT GOULDING of 10 Mandeville Street, Cardiff in the County of
Glamorgan, Accountant and Journalist, do hereby declare the nature of this invention
to be as follows:-
This invention has for its object a transmitter so arranged that it can be placed at
any desired height by the person temporarily using it, and thus a man can either sit,
stand or if necessary even lie down while transmitting a message.
In carrying out my invention I arrange the wires with a considerable amount of
play and place the transmitter on a carriage preferably of wood travelling vertically
in guides or rails on the wall. One mode of carrying it out is to form the telephone
with a couple of dovetails. These dovetails slide in hollow vertical dovetail rails
made of brass or other material fixed to the wall. A handle and a stop are placed on
the carriage, these if desired may be connected together. The handle is used for
raising or lowering the carriage when the stop is withdrawn. The stop can fit into a
series of holes porforated closely together in one or both of the rails or it can rest in
the teeth of a ratchet placed alongside the rail or projecting from it, or it can be made
simply to act by friction when the weight of the transmitter comes on it the friction
device wedges itself against the rails and makes the transmitter immovable. By
lifting up the wedging device, however, by the handle that guides the transmitter or
by other mechanism or by simply withdrawing it the transmitter can be raised and
lowered as desired.
It will be obvious that almost any shaped pattern of rail and guide already known
for the purposes of allowing a device to slide vertically can be used, and 1 have only
mentioned the particular arrangement herein shown as being one which I prefer at
the present time, not as confining myself in any way to that arrangement. A cushion
of some sort is preferably placed at the base of the vertical railway or guides so that
the transmitter and its carriage shall be unable to fall out of them at the bottom, and
even at top a screwed stop is preferably placed so that no unauthorised person can
withdraw the transmitter carriage from the guides but only those who have a key to
fit the screwed stop or lock. It will be obvious also that an ordinary bolt worked by
a handle either in a reciprocating manner or radially can be used to lock the
instrument in place when it has been put to the desired height.
Dated this 11th day of July 1889
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or Appertaining to Telephone Transmitters.
I, JOSEPH CUTHBERT GOULDING of 10, Mandeville Street Cardiff in the County of
Glamorgan, Accountant and Journalist 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 :-
This invention has for its object a transmitter so arranged that it can be placed at
any desired height by the person temporarily using it, and thus a man, tall or short,
can either sit, stand or, if necessary, even lie down while transmitting a message.
In carrying out my invention, I arrange the wires with a considerable amount of
play, and place the transmitter on a carriage of wood or other material travelling
vertically in guides or rails on or in proximity to the wall.
The telephone can be made to serve when required as many floors as there may be
Price 81

page_text: t
in the building in which it is used, all that is required to adapt it
being a sufficient lengthening of the vertical guides and the terminal wires.
The invention is best described by aid of the accompanying drawings, in which,
Figure 1 is a side elevation of the upright guides fixed in proximity to the wall,
and of the telephonic apparatus mounted on the carriage adapted to slide vertically 5
between said uprights.
Figure 2 an elevation viewed from the back, of the uprights, sliding carriage, slack
wires, and device for clamping the carriage in any required position in its vertical
path.
Figure 3 a front elevation of the clamping device, shewn in Figure 2, but drawn 1
on a larger scale than said figure.
Figure 4 a side elevation of a portion of said clamping device.
In these, A A are hollow uprights, preferably of metal, C the carriage having
guides e and d and capable of sliding vertically between said uprights and on which
the telephonic apparatus B is mounted. D is a wall or partition to which the uprights
aforesaid are fixed by brackets d¹ or their equivalents so as not to lie against the
wall, thus overcoming the vibration from that source, and preventing noises or
conversation in an adjoining apartment (which would be audible if the telephone
were placed in contact with the wall) from disturbing the operator while he is at
work. EE are pulleys over which pass cords ee attached at one end to the
carriage C and at the other to counterweights e e², the combined weights of which
are approximately equal to the weight of the carriage aforesaid and the telephonic
apparatus attached thereto. The telephonic apparatus can thus be raised or lowered
as desired without undue exertion, to suit the height or convenience of each individual
operator.
The guides e e aforesaid are permanently fixed to the carriage C, in proximity to
its lower end, the other guides d d are designed to slide horizontally and clamp the
carriage at any height in its vertical path. F is a disc, axially mounted on the
carriage C, and adapted to be rotated by the handle b. ff are eccentric grooves or
slots in said disc which receive the studs on the clamping guides d (Figures 3 and 4).
When the handle is rotated in one direction, the eccentric grooves in the disc
aforesaid simultaneously thrust the clamps d d outward against the uprights A, and
so bind the carriage C that it cannot be moved accidentally or otherwise until the
handle is turned in the opposite direction when the clamps d are drawn back clear
of the uprights and leave the carriage free to be moved in its vertical path.
To the transom G are attached two terminals i i. To these, and to the telephonic
apparatus on the carriage C, are connected the flexible wires g which are of such a
length as to allow of the board being moved from the top to the bottom of the
uprights.
Another arrangement is to provide the carriage with a handle and a stop, which if
desired may be connected together. The handle is used for raising or lowering the
carriage when the stop is withdrawn. The stop can fit into a series of holes perforated
closely together in one or both of the rails or it can rest in the teeth of a rack
placed alongside the rail, or projecting from it, or it can be made simply to act by
friction; when the weight of the transmitter comes on it the friction device wedges
itself against the rails and makes the transmitter immovable. By lifting up the
wedging device, however, by the handle that guides the transmitter or by othe
mechanism, or by simply withdrawing it, the transmitter can be raised and lowere
as desired. It will be obvious also that an ordinary bolt worked by a handle eithe
in a reciprocating manner or radially can be used to lock the instrument in plac
when it has been put to the desired height.
A cushion or base H is placed at the bottom of the vertical uprights, so that th
transmitter and its carriage C shall be unable to fall out of them at the bottom, an
at the top the cross-piece or transoni G aforesaid is placed so that no unauthorise
person can withdraw the transmitter carriage.
If desired, the cords e e¹ may be utilised as conducting wires for the electr
current in addition to their use as suspenders.

page_text: said
Having now particularly described and ascertained the nature of my
invention, and in what manner the same is to be performed, I declare that what
I claim is :-
1. The improvement in telephone transmitters, which consists in mounting the
telephonic apparatus upon a carriage capable of being raised and lowered upon
guide-ways and of being readily adjusted thereon at any desired height, the connecting
wires being provided with sufficient slack to permit of such vertical movement,
substantially as described.
2. A telephone transmitter, in which a carriage having the telephonic apparatus
mounted thereon is adapted to slide vertically between parallel uprights, and to be
held stationary in any position in its vertical path by a friction device capable of
setting up a sufficient amount of friction between its sides and the opposing surfaces
of the uprights, substantially as described.
3. The combination of the hollow parallel uprights A, the carriage C adapted to
slide vertically between said uprights and having the telephonic apparatus mounted
thereon, the pulleys E mounted axially near the top of said uprights and the balance
weights suspended by cords over the said pulleys and connected to the carriage C
aforesaid, substantially as and for the purpose described.
Dated thin 8th day of January 1890
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.