Improvements in Telephone Cabinets and other Structures, where it is desirable that they should be Sound-proof.
Year: 1894

page_text: Date of Application, 3rd July, 1894
Complete Specification Left, 3rd Apr., 1895-Accepted, 18th May, 1895
TRUYISIONAL SPECIFICATION.
Improvements in Telephone Cabinets and other Structures, where
it is desirable that they should be Sound-proof.
We, THOMAS Weighill, of 24, Drury Lane, Liverpool, in the County of
Lancaster, Joiner, and GEORGE MOORE, of 15, Brunswick Street, Liverpool.
aforesaid, Agent, do hereby declare the nature of this invention to be as
follows: :-
This invention has for its object a telephone box or cabinet that will he abso-
lutely sound-proof. It is a development of our earlier Patent No. 19899 of
November 17th 1891. The invention is of course available for making other
buildings or structures sound-proof besides telephone boxes.
In carrying the invention into effect the plan we prefer is to form the structure
with double hollow or cellular walls, each wall being formed either by fastening
two single hollow walls together, or by dividing each wall vertically into two
separate hollows or cavities by means of suitable panels or boards. The hollows in
the walls are filled with fibrous peat, slag wool, asbestos, sawdust, spent tan or
other suitable material. Any of these can be used alone or with the addition of
all or any of the other materials. The top, bottom, and door of the cabinet can be
formed in the same way as the walls if so desired.
We have described one way in which our invention may be carried into effect
but it is obvious that the structure can be made with triple cavities or cells in the
walls, or in fact with any number of these cavities or cells that may be required to
deaden the sounds that have to be dealt with, and the degree of silence required
inside the cabinet. The above description will, however, serve sufficiently to
indicate the nature of the invention and the manner of carrying it into effect.
Dated this 2nd day of July 1894.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicants.
Improvements in Telephone Cabinets and other Structures, where
it is desirable that they should be Sound-proof.
We, THOMAS WEIGHILL of 24 Drury Lane, Liverpool in the County of
Lancaster. Joiner, and GEORGE MOORE of 15 Brunswick Street, Liverpool,
aforesaid, Agent 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 telephone box or cabinet that will be
practically sound-proof. It is a development of our earlier Patent No. 19899 of
November 17th, 1891. The invention is of course available for making other
buildings or structures sound-proof beside telephone boxes
In carrying the invention into effect the plan we prefer is to form the structure
with double hollow or cellular walls, each wall being formed either by fastening
two single hollow walls together, or by dividing each wall vertically into two

page_text: separate hollows or cavities by means of suitable panels or boards. The hollows in
the walls are filled with fibrous peat, slag wool, asbestos, sawdust, spent tan or
other suitable material. Any of these can be used alone or with the addition of all
or any of the other materials. The top, bottom, and door of the cabinet can be
formed in the same way as the walls if so desired.
In the accompanying drawings-
Figure 1 is a perspective view of a telephone-cabinet constructed in accordance
with this invention; and
Figure 2, a horizontal section showing each wall divided vertically into two
separate hollows or cavities.
In these,
A, are the double hollow walls of the structure, B being the outside panelling or
boards, C, the inside linings preferably formed of half inch tongued and grooved
boards or sheeting aud D a dividing wall of very thin boarding. The hollow cells
or spaces between B and D and the hollow cells or spaces E' between C and D
are filled with fibrous peat, slag wool, asbestos, sawdust, spent tan, diatoniaceous
earths or other suitable material.
In actual practice we prefer as a rule to fill the hollow space E with sawdust or some
fibrous material and the other space E' with slag-wool or diatomaceous earths. The
boards or panelling B and C preferably overlap the posts at the corners or other parts as
shown, and at the door where the two frames of the door come together, we arrange
rabbets or tongue pieces F in one, fitting into holes of the other, and form a doub'e
frame G H, the joint of one frame being further back than the joint of the other.
The bottom and top of the structure may be formed in the same way as the walls.
I is a window.
We have described one way in which our invention may be carried into effect but
it is obvious that the structure can be made with triple cavities or cells in the walls.
or in fact with any number of these cavities or cells that may be required to deaden
the sounds that have to be dealt with, and the degree of silence required inside the
cabinet. The above description will however serve sufficiently to indicate the
nature of the invention and the manner of carrying it into effect.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The improvement in telephone cabinets and other structures requiring to be
sound-proof, which consists in forming the walls thereof with two, three or more
hollows or cells therein, said hollows or cells being filled with fibrous peat, slag
wool, asbestos, sawdust, spent tan, diatomaceous earths or the like substantially as
described.
2. The manufacture of telephone cabinets and other structures requiring to be
sound-proof of double hollow or cellular walls formed either by fastening two single
hollow walls together or by dividing each wall vertically into two separate hollows
or cavities, one hollow being filled with sawdust or loose fibrous material, and the
other with slag-wool or diatomaceous earths with or without the addition of other
materials substantially as described.
Dated this 2nd day of April 1895.
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Birmingham, and London, Patent Agents.