Improvements in Carriage Window Frames.
Year: 1892

page_text: Date of Application, 28th Nov., 1892
Complete Specification Left. 4th Feb.. 1893-Accepted. 4th Mar. 1893
PROVISIONAL SPECIFICATION.
Improvements in Carriage Window Frames.
JOHN EVERARD HENRY COLCLOUGH 22 Duke Street in the County of Dublin,
Ireland Coach Builder do hereby declare the nature of this invention to be as
follows:-
:
Noiseless carriage window frames being made of india rubber in two parts, or
sections. The inner portion being of hard material to render the whole firm &
rigid. The outer being of soft material. By this combination the frame is kept
firm, & rigid, & being soft in all the bearing edges, & grooves for glass, the frame
is perfectly noiseless.
The frames are made from suitable lengths of the above combination of rubber
and other material & are jointed at the corners by means of proper metallic or other
fasteners.
Dated this 26th day of November 1892.
JOHN EVERARD HENRY COLCLOUGH.
COMPLETE. SPECIFICATION.
Improvements in Carriage Window Frames.
I, JOHN EVERARD HENRY COLCLOUGH of 22 Duke Street, in the County of
Dublin, Ireland, Coach Builder, 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
My invention relates to improvements in the windows of railway, tramcar, road
and other carriages, and more particularly to the window frames of such vehicles,
as are not absolute fixtures, but require to be periodically raised or lowered to
afford ventilation, and for other purposes, the object of my invention being to prevent
vibration, and the irritating rattle and noise that usually accompanies such frames
when the vehicle is travelling, and to reduce the possibility of the glass of such
windows being broken either by the aforesaid vibration, or the accidental fall of
said frame when being raised or lowered, and I attain this object by constructing
the frame of india rubber, or rubber composition or other similar non-resonant
resilient material, instead of wood as hitherto employed for that purpose, and the
said frame when constructed according to my invention and the glass fixed therein
may be coated with suitable paint of any desired color, and if required grained to
resemble mahogany or any other wood.
To render my invention perfectly clear I append hereunto a sheet of drawings,
in which
Figs. 1 and 2 are cross sections of my said frame shewing two different methods
I employ in the construction of the same.
Figs. 3 and 4 are front and back views respectively of the corner plates or mitre
fasteners employed by me, while
Fig. 5 is a perspective view of Figs. 3 and 4 shewing how these are employed in
pairs or more at each corner joint of the frame.
Fig. 6 is a view of one corner of said frame shewing the position in which said
plates are fixed upon the frame when one pair only are employed at each joint.
Fig. 7 is a view of part of the lower rail and one corner of said frame when

page_text: glazed, for the purpose of illustrating how two or more pairs of said corner plates
may be employed at each joint, and the manner in which the raising and lowering
strap is fastened upon the bottom rail.
In carrying my invention into effect I employ the use of rubber or rubber com-
position or other resilient material, which I cast, mould or otherwise form into
suitable lengths, and of such dimensions in cross section as that of the frames in
general use for this purpose, one edge of which I prefer to make rectangular to be
used as the outer edge of the frame, while the opposite edge may be more or less
semicircular in cross section, which I employ as the inner edge, and in this I form
during moulding or otherwise, a longitudinal groove, in which the edge of the glass
is placed when the frame is made. The cross sectional form of the said lengths
will be understood by reference to Figs. 1 and 2, in which A is the resilient
substance employed, and B the said groove or rabbet for the glass.
In order to render the said material sufficiently rigid for the purposes required,
I place centrally and longitudinally within the said lengths, by moulding the said
resilient material therearound, or by any other convenient means, a like length of
wood, vulcanite, xylonite, celluloid or any other non-resonant material harder and
less elastic than A, as shewn by C in Fig. 1, or I may where greater strength is
required, employ the use of brass, iron, steel or other metal as a core for said lengths,
in which case I prefer that such core shall occupy a position in A as shewn by D
in Fig. 2, or thereabouts.
The said material having been prepared in either of the manners stated is cut into
suitable lengths according to the size of the frame required, and these when mitred
or otherwise cut to forin the corner joints, are placed together to form the frame,
and I fasten the said mitres or other joints together and hold them firmly in position,
by placing upon each side one of the plates E Figs. 1 and 2, so that one occurs upon
each face of the frame, and these being provided with suitable holes are bolted or
screwed together in the manner illustrated by Fig. 5, so that the bolts or screws F
pass through holes in the inner material C or D, and the joint when finished appears
as at Fig. 6. In Fig. 5 I illustrate the use of screws passing through a countersunk
hole in the one or front plate, and engaging with a threaded hole in the back plate,
but I may use bolts with nuts upon the back plate, or pins burred over at the back
end, or any combination of these as circumstances may require. Or in large frames
or where greater strength is needed, I may employ two or more pairs of such plates
at each joint, as shewn by the dotted outlines at Fig. 7, in which case the screws,
bolts or pins F in either or both pairs would engage with C or D in like manner.
The glass G would be placed in the rabbetts B before fixing in position the fourth
or last portion A. of the frame.
The usual strap employed for raising and lowering such windows would be
attached to the bottom rail of the frame by the means of one or two brass or other
plates H upon the front or front and back faces of the frame, this or these being
arranged to grip the strap J when held in position by screws, bolts or pins K passing
through it or them and the core C or D, in the same manner as F of the plates E.
The frame may be painted or grained as desired.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is..
1st. In an improved carriage window frame the employment of india rubber or
rubber composition or other resilient and non resonant material, moulded or other-
wise surrounding a core of wood, vulcanite, xylonite, celluloid, metal or other hard
"substance substantially as and for the purposes herein described and shewn by the
accompanying drawings..
2nd. In an improved window frame the combination of rubber or other resilient
material A, with hard core Cor D, and rabbett or groove B for holding in position
"the glass G, the corner or joint plates E, connected in pairs by bolts, screws or

page_text: pins F, the strap J held in position by a plate or plates H, and bolts, screws, or
pins K, substantially as and for the purposes herein set forth and shewn by the
appended drawings.
Dated this 4th day of February 1893.
GEO. THOS. HYDE,
4, Moorfields, Fore Street, London, E.C., Agent for the Applicant.