An Improved Portable Telephone for Short Circuits on Board Ships, Public Buildings, and General Domestic Use.
Year: 1886

page_text: Date of Application, 21st Oct., 1886
Complete Left, 21st July, 1887.
Complete Accepted, 21st Oct., 1887
An Improved Portable Telephone for Short Circuits on Board Ships,
Public Buildings, and General Domestic Use.
I HENRY BINKO of 2 Peters Lane Cow Cross Street London Manufacturer do
hereby declare the nature of my said invention to be as follows:-
-
The object of my Invention is to construct a portable Telephone of small compass
requiring no fixture or support, and which being complete in itself, requires by new
Installation neither Bell or Push for signalling and which can be likewise utilised by
being brought in a simple and cheap way in the circuit of an already existing Electric
signalling system, either with or without Indicators.
For the purpose of my Invention I construct an apparatus of about 3 inch diameter.
The part forming the face of the Apparatus contains an Electro Magnet and a
vibrating plate of any kind serving for receiving and transmitting. At the back of
this I place an Electric Bell constructed on the principle for which I obtained Letters
Patent on the 1st April 1882 No. 1583, by which principle the working parts are
entirely covered by the dome. On the side of this Apparatus I place 2 spring
Terminals one for bringing the Bell and the other for bringing the Telephone in the
Circuit. Practice shows that according to the length of the Circuit and strongth of
Battery the distance of the vibrating plate from the Electro Magnet makes the
Telephonic Action more or less distinct. This being of great importance in an
Apparatus of such small compass, I have devised a simple improvement in the
Telephonic part of the Apparatus so as to enable any one to regulate it as required,
and for this purpose, I screw the Electro Magnet in the Case on a piece of India
rubber or other Elastic material, and by turning the screws forward or backward I am
able to regulate the distance correctly.
The connections of the wires inside the Apparatus are made on well known
principles, therefore require no description, but in so far contact has to be made with
the wires forming the Circuit I give further on sufficient explanation.
The portable Telephone when not in use is simply laid down on tTable like a
paper weight, or suspended in a convenient place and having a sufficient length of
flexible wire attached can be used in any part of the room, even in bed.

page_text: The same kind of Apparatus is used as Receiver and Transmitter, and to explain
the practical way how my portable Telephone can be utilised I give in the annexed
Drawing two diagrams which will be easily understood.
Fig. 1, shows position of simple Arrangement to transmit from two Rooms to one
Receiver and vice versa. P.T. are the portable Telephones. W the Wires, no special
Push or Bell is by such new Installation required.
Fig. 2, the system is shown how to arrange the portable Telephone by an already
existing Electric Signalling Arrangement with Indicator, the existing pushes are left
at 1. 3. where the portable Telephone Wires are connected above the Push, or, as at
4. 5. 6. the Pushes are removed and the portable Telephone wires are connected
simply like Pushes.
In Fig. 3. 4. 5. 6. T is the Telephone forming the face of the Apparatus and B. the
Bell forming the back. B. C. is the Bell Terminal and T. C. the Telephone Terminal,
to be used as required, and H, is the hook to suspend the Portable Telephone if
desired.
Fig. 3. shows the face of the Apparatus.
Fig. 4. shows the back of the Apparatus.
Fig. 5. shows a view of the Apparatus.
Fig. 6 shows a horizontal cross section in which V is the vibrating plate, M the
'Electro Magnet, S S the 2 Screws by which the former is fixed on the Rubber plate R.
to the middle plate of the Apparatus. B is the Bell part of the Apparatus. B² the
dome of the Bell under which the Bell movement is fixed.
What I claim as my Invention is the compact portable Apparatus containing Tele-
phone Bell and Push as described and shown generally in the annexed Drawings.
I do not claim as new the construction of the Telephonic part of the Apparatus
consisting of a vibrating plate and Electro Magnet, but what I claim as new is the
Device by means of the India Rubber or other Elastic substance, placed between the
Electro Magnet and the Middle Base of the Apparatus, and the regulating screws as
previously explained.
Dated this 21st dos
1000

page_text: Public Buildings, and General Domestic Use.
I HENRY BINKO of 2 Peters Lane, Cow Cross Street, London, manufacturer, 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 relates to portable telephonic apparatus of small compass intended
more particularly for naval, military, field, vehicular and domestic purposes and
consists in the combination of a transmitter, receiver, bell and pushes in one apparatus
so constructed as to be practically one instrument, conveniently used by one hand,
two only of such apparatus being required one for the sender and the other for the
receiver of any message-the batteries and connecting wires used being similar to those
at present in use. The invention further embraces the use of an elastic plate or washer
for regulating the distance or position of the diaphragm of the telephone combined
with an adjusting screw or screws or equivalents. The drawing lodged with my
provisional specification illustrates a convenient mode of performing my invention; in
said drawing, Fig. 1 represents an arrangement of two or more rooms or compartments,
PT in each case being my improved telephone, W wires connected with a battery
as shown-no extra push or bell being required.
Fig. 2 is intended to illustrate the application of my invention to an existing system
of electric signalling having an indicator, here PT, PT, PT3 show my telephone
connected with the existing wires above the push, and PT4, PT and P T without
the existing push which can be dispensed with.
Fig. 3 is a front view of my, apparatus showing the transmitter or receiver T.
Fig. 4 a back view of same showing the bell B, Fig. 5 a side and perspective view
of the whole, Fig. 6 a cross section. In these four Figures BC are the bell push
and TC the telephone push and H is a loop hook or handle for suspending attaching
or holding the apparatus.
In Fig. 6, V is the vibrator, M an electro magnet, SS screws, by which the magnet
is held on the elastic plate R,-B the bell, B³ dome thereof. The electro magnet may
be of the same kind as at present in use for telephones, as also the electric machinery
for sounding the bell, the said machinery being preferably arranged within the bell ;
the wires and their batteries are made and connected as at present.-My improved
apparatus can be very conveniently fitted on a tricycle or other vehicle which can also
carry the battery and a roll or rolls of wire for military or field purposes.-The élastic
regulator plate R may be placed as shown, and the distance of the electromagnet from
the diaphragm regulated by the screws SS altering the position of the magnet with
regard to the casing and therefore to the vibrator fixed in said casing, or preferably the
vibrator may
be held between flanges of the casing capable of being approached to each
other, a washer or rubber or other elastic material may be placed upon the said
flange immediately under the vibrator and nearest to the electromagnet; the casing

page_text: holding the same may then be made of two sections screwed together and embracing
between the sections the vibrator and the rubber washer thereunder; by screwing
up or unscrewing the sections the washer is compressed or released and the vibrator
is approached to or withdrawn from the electromagnet. In lieu of the hook H,-I
sometimes use a handle in which case I may place the pushes BC and TC con-
veniently therein or near thereto for being operated by the fingers of the hand holding
the handle.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is :
1) The combination in one apparatus of a transmitter, receiver, bell and pushes
with or without a suspender or handle substantially as described.
2) The compressible and resilient plate or washer for regulating the distance of the
vibrator from the magnet.