Certain Improvements in the Manufacture of Furniture Castors and the like.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Certain Improvements in the Manufacture of Furniture Castors and
the like.
I, ARTHUR MOORE, of No. 33, Victoria Street, Small Heath, in the City of
Birmingham, Brass Founder, do hereby declare the nature of this Invention to be
as follows:-
This Invention has reference to furniture castors of all kinds and to castors for
use on piano-fortes organs and harmoniums and this Invention consists of the herein
described improved means for securing to the castor plate or socket the pivot peg
on which the horn piece of the castor turns. This Invention is applicable more
particularly to those castors which are constructed for use with heavy articles such
as heavy furniture piano-fortes organs and harmoniums but my Invention is also
applicable to furniture castors of a lighter kind.
In one arrangement of carrying out this Invention the said castor peg or pivot
pin is forged or otherwise formed with a head at its upper end and is threaded
through and driven into a hole in the castor plate or socket from the upper side
of the same so that the said head is situated on the upper side of the castor plate
or socket and the shank of the peg or pin projects through the lower side of the
same. In order to fix the peg or pivot pin in place I provide a steel or other ductile
metal collar which is placed on the castor peg or pivot pin and fits upon the same
close up against the underside of the castor plate or socket. By means of tools
worked in a press or by other means this washer (the sides of which are by prefer-
ence rounded or inclined) is squeezed and compressed round the castor peg or pivot
pin so as to fit very tightly against the same and against the underside of the plate
or socket thus effectually securing the castor peg or pivot pin and the plate or
socket together. That part of the peg or pin which fits in the plate or socket and
on which the said collar fits may be either square round or of other shape.
The plate or socket may be sunk to a domed or inclined shape on the upper side
to receive the head of the said peg or pivot pin forming a domed boss on the under-
side for the horn piece to work against. In this case the said collar is dispensed
with and the domed boss is by press tools or other means squeezed or compressed
round the neck of the pivot pin or peg to secure the same to the socket or plate.
The said centre peg or pin may be continued beyond the head part of the same
in the form of a screw threaded or other shank to take into the leg or other part
of the furniture or musical instrument to which the castor has to be fixed.
The said collar which I compress round the neck of the castor peg or pivot pin
as aforesaid may, when applied to socket castors, be raised from sheet steel or other
metal in the form of a washer with upturned rim to fit around the bottom of the
castor socket and a domed centre to fit against a shoulder on the pin and to be com-
pressed around the pin to strengthen the same and the castor socket, said pin head
fitting inside the castor socket as aforesaid.
Instead of the castor peg or pivot pin head fitting against the upper side of the

page_text: castor plate or socket as above described, the said peg or pivot pin may be threaded
through the horn piece with the head downwards and then forced through the
said collar and through the castor socket or plate and the upper end of the castor
peg or pivot pin be rivetted over on the upper side, said collar taking against a
shoulder on the peg or pivot pin if necessary.
Dated th: 1111
..
1 1007
Certain Improvements in the Manufacture of Furniture Castors and
the like.
I, ARTHUR MOORE, of, No., 33, Victoria Street, Small Heath, in the City of
Birmingham, Brass Founder, 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 reference to furniture castors of all kinds and to castors for
use on piano-fortes organs and harmoniums and this Invention consists of the herein
described improved means for securing to the castor plate or socket the pivot peg
on which the horn piece of the castor turns. This Invention is applicable more
particularly to those castors which are constructed for use with heavy articles such
as heavy furniture piano-fortes organs and harmoniums but my Invention is also
applicable to furniture castors of a lighter kind.
I will describe my invention by referring to the accompanying drawings on
which Fig. 1 is a sectional elevation of a castor plate and pivot pin fixed together
in accordance with this invention; Fig. 2. is an inverted plan of the same; Fig. 3
is a cross section shewing the pivot pin and castor plate and collar part placed
together ready for fixing; Fig. 4 is a side elevation and inverted plan of the pivot,
pin separately; Fig. 5 shews the collar part of the said combined castor plate and
pivot pin separately; Fig. 6 is a sectional elevation of a castor plate and pivot pin
constructed and fixed together in accordance with a modification of my invention;
Fig. 7 shews another form of combined castor plate and pivot pin fixed together in
accordance with this invention; Fig. 8 illustrates a further modification of my
invention applied to a socket castor; Fig. 9 is. a part of the said socket castor
separately; and Fig. 10 illustrates a further modification of my invention.
The same letters of reference indicate the same or corresponding parts in all
the figures.
In one arrangement of carrying out this invention (see Figs. 1 to 5 both
inclusive) the castor peg or pivot pin A is forged or otherwise formed with
a head a¹
at its upper end and with a square or other shaped neck below the head which, neck
is somewhat larger than the part as of the pivot pin on which the castor horn piece
turns. The pivot pin A is threaded through and driven into a hole in the
castor plate B (or in the socket) from the upper side of the same so that the head a¹
is situated on the upper side of the castor.plate B (or inside the castor socket) and
the shank a³ of the peg or pin projects through the lower side of the same as shewn
for instance in Fig. 3. In order to fix the peg or pivot pin A in place I provide a
steel or other metal collar C shewn separately by Fig. 5 which is circular when
viewed in plan and rounded so as to work easily in the usual recess in the top of
the horn piece D. This collar C has a hole el corresponding in shape and size with
the neck a² and is made flat on, one face so as to fit against the underside of the
castor plate B or castor socket. After the collar C has been threaded on to the
'

page_text: peg A against the underside of the plate B'as represented in Fig. 3, the collar is
there fixed by a press tool or other means which squeezes or compresses the collar C
round the neck a² and also spreads outwardly at at the corners of the shoulder a
at the termination of the neck a² (as shewn in Figs: 1 and 2) so that the collar C
and pivot pin A are then 'securely fixed to the castor plate B or to the castor socket.
The castor plate B (or the bottom of the socket) may be sunk to a dome or
inclined shape at 62 at the upper side (as represented in Fig. 6) to receive the
head a¹ of the peg or pivot pin A (which head is by preference made round) thus
forming a domed boss 62 on the underside of the castor plate B (or of the socket)
for the horn piece to work against. In this case the collar C is dispensed with
and the domed boss 62 is by press tools or other means squeezed or pressed round
the neck a² of the pivot pin or peg to secure. the same thereto and the corners at of
the neck a² are also compressed and spread outwardly as shown in Fig. 6 over the
hole in the underside of the boss '62)
-
t
[!1 4
The centre peg or pin A which is secured to the castor plate B as above described
may as represented for instance by Fig. 7 be continued beyond the head part a¹
of the same in the form of a screw threaded or other shank a to take into the leg
or other part of the furniture' or musical instrument to which the castor has to be
fixed.
The collar C when applied to socket castors to secure the pivot pin A in the socket
castor E may, as represented by Fig. 8, be raised from sheet steel or other sheet
metal in the form of a washer with the upturned rim 3 to fit round the bottom of
the castor socket E and also made with a domed central part to fit round the
shoulder or neck a² on the pin A to be pressed round and secure the pin A as afore-
said and strengthen the same and the castor socket as represented in Fig. 8, the
pin head a fitting inside the castor socket E as aforesaid.
Instead of the head of the castor peg or pivot pin fitting against the upper side
of the castor plate B or inside the bottom of the socket E as above described, the
head a of the peg or pivot pin may be at the bottom as represnted by Fig. 10
and the pin be threaded through the horn-piece D and through the said collar C
which will fit up against a shoulder a formed on the pin and through the castor
plate B (or through the bottom of the castor socket) the upper end of the pin A
being rivetted over at a8 on the upper side of the plate B as shewn in Fig. 10 or
inside the castor socket E thus effectually securing the horn-piece and the central
pin or pivot and castor plate or socket and collar C together.
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:-
1
1. In castors for furniture and for musical instruments securing the castor peg
or pivot pin (on which the horn-piece turns) to the castor plate or socket by means of
the said peg or pivot pin passing through the castor plate or socket bottom and
made with a head which fits against the upper side of the same and an enlarged
neck which fits in a hole in the same and a collar such as C which is fixed on said
neck of the peg or pivot underneath the castor plate or socket and secures the castor
peg or pivot pin to the castor plate or socket all in the manner substantially as
herein before described with reference to Figs. 1 to 5 both inclusive of the
accompanying drawings.
2. In castors for furniture and for musical instruments securing the castor peg
or pivot pin (on which the horn-piece turns) to the castor plate or socket by means
of the said peg or pivot pin passing through a hole in the castor plate or socket
bottom which is made with a sunk recess on the upper side in which the head of
the pivot pin fits and a corresponding pommel or boss such as 2 on the underside
which is secured to the neck of the castor peg or pivot pin in the manner substan-
ially as hereinbefore described with reference to Fig. 6 of the accompanying
Irawings.
3. In a furniture castor the combination with the castor plate B of the castor

page_text: peg A fitting in a hole in the same and made with a head a¹
fitting against the upper side of said plate and continued above said head
as a screwed shank a and made with an enlarged neck a fitting in a hole in said
plate and the collar C fixed on said neck of the pin underneath the castor plate B
to fix the peg thereto all substantially as herein before described and illustrated
by Fig. 7 of the accompanying drawings.
4. The combination with the socket of a furniture castor, of the pivot pin or
peg A fitting in a hole in the socket bottom and made with a head a¹ within the
socket and the stamped sheet metal collar C made with a rim 2 to embrace the
bottom of the socket and with a central boss c which is fixed round the neck of
the pivot pin to fix the same to the socket, substantially as herein before described
and illustrated by Fig. 8 of the accompanying drawings.
5. The combination with a castor plate or castor socket of the pin or peg A pass-
ing through a hole in the same and made with a head a' at its lower end, the castor
horn-piece threaded on and turning on said pivot pin the collar C fitting on the
neck of said pivot pin against a shoulder a thereon and against the inside of the
castor plate or socket bottom all substantially as hereinbefore described with
reference to Fig. 10 of the accompanying drawings.
Dated this 11th day of December 1897.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.