CERTAIN IMPROVEMENTS IN CASTORS FOR FURNITURE
Year: 1877

page_text: LETTERS PATENT to Albert Fenton and Thomas Dowler Green, both of
Birmingham, in the County of Warwick, for the Invention of "CERTAIN
IMPROVEMENTS IN CASTORS FOR FURNITURE."
Sealed the 27th October 1877, and dated the 3rd May 1877.
PROVISIONAL SPECIFICATION left by the said Albert Fenton and Thomas
Dowler Green at the Office of the Commissioners of Patents on the 3rd May
1877.
ALBERT FENTON and THOMAS DOWLER GREEN, both of Birmingham, in the
County of Warwick. "CERTAIN IMPROVEMENTS IN CASTORS FOR FURNITURE."
Our Invention consists of the improvements herein-after described in the con-
struction of castors as applied to furniture.
We will describe our Invention as applied to a plate castor, although our
Invention can be adapted to socket and other castors. We use the circullar
metallic plate, having through its centre a screw for attaching or securing to
the furniture on the one side; the other side consists of a tapered pin or pivot
passing through a circular hole in the frame (the said frame carrying the bowl or
wheel); at the lower part of the said frame, and in close proximity to the wheel is a
hole corresponding in form to the tapered pin or pivot, and in this the said pin or
pivot rotates, being secured by a washer at the extreme end of the pin and from the
underneath.
The advantages aimed at by this Invention are,—
First. The action or bearing is nearly centralized, so that it is not liable to such
disarrangement as hitherto.
Secondly. The friction is reduced to a minimum, and the freedom thereby
increased.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Albert Fenton and Thomas Dowler Green in the Great Seal Patent
Office on the 2nd November 1877.
ALBERT FENTON and THOMAS DOWLER GREEN, both of Birmingham, in the
County of Warwick. "CERTAIN IMPROVEMENTS IN CASTORS FOR FURNITURE."
Our Invention consists of the improvements herein-after described in the con-
struction of castors as applied to furniture.
We will describe our Invention as applied to a plate castor, although our Invention
can be applied to socket and other castors. We use the circular metallic plate,
having through its centre a screw for attaching or screwing to the furniture on the
one side; the other side consists of a tapered pin or pivot passing through a circular
hole in the frame (the said frame carrying the bowl or wheel); at the lower part of
the said frame, and in close proximity to the wheel is a hole corresponding in form
to the tapered pin or pivot, and in this the said pin or pivot rotates, being secured
by a washer at the extreme end of the pin and from the underneath.
The advantages aimed at by this Invention are,-
First. The action or bearing is nearly centralised, so that it is not liable to such
disarrangement as hitherto.
Secondly. The friction is reduced to a minimum, and the freedom thereby
increased.
I will now proceed to describe my Invention more fully in detail, reference
being had to the Drawings hereunto annexed, and to the letters marked thereon.
Figure 1 represents a side view of my Invention, being shewn in section, a socket
castor, differing from the plate castor by substituting the socket in lieu of the plate
and screw.
Figure 2 shows my Invention in its entirety. a is the socket; b is a pin
or pivot passing through the base of a, and permanently affixed by a washer and
rivet, indicated at c in Figure 1; d is a frame carrying the pin b by passing
through its upper and lower parts, but secured to the lower, immediately over the
bowl or wheel; approaching the base of b is a taper form, finding its bearing
at e, and working freely in either desired direction; f is a seat for reducing
the strain and friction upon b.
Having thus described the nature and object of my said Invention, I would
observe in conclusion that I do not restrict myself entirely to the above description,
as various modifications may be made without departing from the features of my
said Invention, but what I do claim and desire to be secured to me by the herein-before
in part recited Letters Patent is, the certain improvements in castors for furniture,
substantially as herein-before described and shewn on the accompanying Drawings,
or any mere modification thereof.
In witness whereof, I, the said Thomas Dowler Green, have hereunto set my
hand and seal, this Thirty-first day of October, in the year of our Lord One
thousand eight hundred and seventy-seven.
mr
AIT AT ADR
THOMAS DOWLER GREEN. (L.S.)