IMPROVE- MENTS IN SPRINGS FOR DOORS
Year: 1878

page_text: LETTERS PATENT to James Alfred Daniel, of No. 22, Hopwood Lane, Halifax,
in the County of York, Plumber and Engineer, for the Invention of "IMPROVE-
MENTS IN SPRINGS FOR DOORS."
Sealed the 14th March 1879, in pursuance of an Order of the Lord Chancellor, and
dated th
Sealed the 14th March 1879, in pursuance of an Order of the Lord Chancellor, and
dated the 4th September 1878.
PROVISIONAL SPECIFICATION left by the said James Alfred Daniel at the
Office of the Commissioners of Patents on the 4th September 1878.
JAMES ALFRED DANIEL, of No. 22, Hopwood Lane, Halifax, in the County of
York, Plumber and Engineer. "IMPROVEMENTS IN SPRINGS FOR DOORS."
This Invention relates to an improved spring for doors to prevent the clashing
and injuring of the same, also deadens the sound.
According to this Invention I attach to the frame or that part of the woodwork
to which the doors are hinged a metal plate or plates, on which is or are adjustable
buffer or buffers. The edge of the door to which the hinges are fixed has a plain
plate of corresponding size. The buffers I construct as follows:-On one side of
the plate is or are a hollow metal tube or tubes (which form holders or cases for
the buffers). The end of each tubo is chased and has chased adjusting cap thercon.
Within each tube is a cylindrical plug, formed part way its length of metal and tho
other part of india-rubber or other elastic substance. The other end of the metal
part of each plug is of larger diameter, and forms a thin neck which fits into a
corresponding recess or recesses on front of plate. When the adjusting cap is
scrowed on to end of metal tube the india-rubber portion of plug abuts against it,
and causes its other or rim end to project from front of plate, and as the cap is
[ Prica fid l

page_text: screwed up more or less so will the rim or buffer project more or less from plate.
Each buffer is kept in its place by a small screw slot in buffer holder.
The whole let into the woodwork until the outer or front surface of the plates
are flush with the woodwork, the ends of the buffers alone projecting according
as the cap has been screwed up. When a door is suddenly and voilently blown
or pushed to, the plate on the door comes in contact with the projecting buffers,
which, (containing a spring, composed preferably of india-rubber) checks and prevents
the door from clashing or making a noise and so shaking or injuring itself.
When
the door is shut the india-rubber is compressed, and the rims of buffers are in the
recesses of the buffer plates. The number of buffers and plates used are according
to the size and weight of the doors.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Alfred Daniel in the Great Seal Patent Office on the 14th March
1879.
JAMES ALFRED DANIEL, of 22, Hopwood Lane, Halifax, in the County of York,
Plumber and Engineer. "IMPROVEments in Springs for Doors."
This Invention relates to an improved spring for doors to prevent the clashing
and injury of same, and deadens the sound.
According to this Invention I attach to the frame, or that part of the woodwork
to which the doors are hinged, a metal plate or plates on which is or are adjustable
buffer or buffers. The edge of the door to which the hinges are fixed bas a plain
plate of corresponding or other size.
The buffers I construct as follows:-On one side of the plate is or are a hollow
metal tube or tubes (which form holders or cases for the buffers). The end of
cach tube is chased and has a chased adjusted cap thereon. Within each tube
is a cylindrical plug, formed part way its length of metal, and the other part
of india-rubber or other elastic substance. The other end of the metal part of each
plug is of larger diameter and forms a thin neck, which fits into a corresponding
recess or recesses on front of plate. When the adjusting cap is screwed on to the end
of metal tube, the india-rubber portion of plug abuts against it, and causes its
other or rim end to project from front of plate, and as the cap is screwed up more
or less, so will the rim or buffer project more or less from plate. Each buffer is
kept in its place by a small screw and slot in the buffer holder.
The whole are let into the woodwork until the outer or front surface of the plates
are flush with the woodwork, the ends of the buffers alone projecting according as
the cap has been screwed up.
The action is as follows:When a door is suddenly and violently blown or pushed
to, the plate. on the door comes in contact with the projecting buffers, which con-
taining a spring, composed preferably of india-rubber, checks and prevents the door
from clashing or making a noise, and so shaking or injuring itself. When the door
is shut the india-rubber or other spring is compressed, and the rims of buffers pushed
into recesses of the buffer plates. The number of buffers and plates used aro
according to the size and weight of the doors. The above are also applicable to
"French windows" or casements, sashes, and windows, to prevent breaking of glass
on sudden shutting or falling of same.
Such being the nature and object of this my said Invention, in order that tho
same may be fully understood I have hereunto annexed a Sheet of Drawings illus-
trative thereof, and marked the same with figures and letters of reference.
Fig. 1 shews sectional elevation of spring buffer; Figs. 2, 3, 4, and 5 are modifi-
cations.
According to this my Invention I attach to the frame, or that part of the wood-
work to which the doors are hinged, a metal plate or plates A, on which is or are
adjustable buffer or buffers B. The edge of the door to which the hingos aro fixed
has a plain plate C of corresponding or other size.
By another method the buffers B are attached to one plate of the door hinge, 800
Fig. 3, the buffer end or face when door is shut impingeing the other plate of hinge
see Fig. 5.
I construct the buffers as follows:-On one side of the plate is or are a hollow
metal tubo D or tubes, which form holders or cases for the buffers B and springs G.
The end of each tube is chased, and has a chased adjusting cap E thereon. Within
each tube is a cylindrical plug B, formed part way its length of metal and the other
part of india-rubber or other spring G.
The other end of the metal part of each buffer plug or tube is of larger diameter,
and forms a thin neck K, which fits into a recess or recesses K₁ on front of
plate. When the adjusting cap E is screwed on to the end of metal tube D
5 the india-rubber portion of plug abuts against it, and causes the other

page_text: end or rim K of the buffer to project from front of plate A, and as the cap is
screwed up more or less so will the rim or buffer project more or less from plate. Each
buffer is kept in its place by a small screw H and slot J in the buffer holder. The
whole are let into the woodwork until the outer or front surface of the plates aro
flush with the woodwork, the ends of the buffers alone projecting according as the
cap has been screwed up.
The action is as follows:-When a door is suddenly and violently blown or pushed
to, the plate C on the door comes in contact with the projecting buffers B, which
containing a spring G, composed preferably of india-rubber, checks and prevents the
door from clashing or making a noise, and so shaking or injuring itself. When the
door is shut the india-rubber or other spring is compressed, and the rims K of
buffers B are pushed into the recesses K₁ of the buffer plates A. The number of
buffers and plates used are according to the size and weight of the doors.
"
The above are also applicable to "French windows or casements, sashes, and
windows, to prevent breaking of glass on sudden shutting or falling of the same.
Having thus fully described the nature and particulars of this my Invention,
together with the manner in which the same is to be or may be performned or carried
into practical operation, I would have it understood that
I claim the apparatus as illustrated, and as described for the purposes set forth.
In witness whereof, I, the said James Alfred Daniel, have hereunto set my
band and seal, this Twenty-eighth day of February, in the year of our Lord
One thousand eight hundred and seventy-nine.
Witness,
JOHN E. WALSII,
Mechanical Draughtsman to
Walter Brierley,
Patent Agent,
Crossley St.,
Halifax.
JAMES A. DANIEL. (L.S.)