Improvements in the Manufacture of Castor Bowls.
Year: 1895

page_text: Date of Application, 2nd Sept., 1895
Complete Specification Left, 1st June, 1896-Accepted, 4th July, 1896
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Castor Bowls.
1, JOHN HARRINGTON, of Claremont, West Street, Ryde, in the Isle of Wight,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
The invention relates to improvements in the manufacture of castor bowls whereby
elegance of appearance, cheapness of construction and other advantages are obtained.
According to my invention instead of casting the bowl in one solid piece of metal
and finishing said casting by turning, or instead of making them of solid earthen-
ware, I form castor bowls by building them up of an outer running ring or periphery,
a central bush or bearing, and two side cheeks fitting recesses in the sides of the
outer running ring or periphery.
The outer running ring or periphery may be made of metal, vulcanized fibre or
other suitable material, whereby the periphery or running ring may be of different
material from that forming the sides or cheeks and central bush. When employing
vulcanized fibre or other material than metal for the periphery or running ring I
make the aperture therein so small that the central bush or bearing requires some
amount of power applied thereto to force it into position within such aperture, but
when making such outer running ring or periphery of metal I preferably make
the aperture therethrough much larger in diameter than that of the central bush or
bearing in order to secure lightness of weight.
The sides or cheeks are stamped from sheet metal whilst the metal running ring
and central bush or bearing are made of suitable lengths of drawn tubing fitting
tightly the one over the other so as to leave a shoulder at each end for rivetting
or spinning over, or they may be cast of suitable shape.
When the main portion or periphery of the wheel is made of vulcanized fibre or
other material than metal, it may be turned out of the solid or produced by means
of dies and pressure.
The side cheeks are made of such external diameter in relation to the recesses
in the running ring or periphery, and the aperture therein is made of such diameter
in relation to the central bush or bearing, as to require some amount of power
applied thereto to force them into position within the side apertures in the outer
running ring or periphery and over the bosses of the central bush or bearing.
After the parts are forced together as above described, the bosses of the central
bush or bearing are rivetted or spun over and the side rims of the outer running
ring, when the latter is made of metal, are also rivetted or spun over the outer
edges of the side cheeks to secure the parts firmly together.
Dated this 2nd day of September 1895.
HARRIS & MILLS,
23 Southampton Buildings, London, W.C., Agents.

page_text: Improvements in the Manufacture of Castor Bowls.
I, JOHN HARRINGTON, of Claremont, West Street, Ryde, in the Isle of Wight,
Manufacturer, 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 :-
The invention relates to improvements in the manufacture of castor bowls
whereby elegance of appearance, cheapness of construction and other advantages
are obtained.
My invention is illustrated in the accompanying drawings in which Figures 1 to 3.
represent one form or modification of my improved castor bowl and Figures 4 to 7
another form or modification thereof, Fig. 8 representing a form of central bush
or bearing adapted for use in both forms or modifications.
In the first form or modification, Fig. 1 is a side elevation, Fig. 2 a cross section
and Fig. 3 a longitudinal section.
In the second form or modification, Fig. 4 is a side elevation, Fig,, a cross
section showing the parts in relative position but not finally secured together,
Fig. 6 a cross section of the finished bowl and Fig. 7 a longitudinal section
thereof.
According to my invention instead of casting the bowl in one solid piece of metal.
and finishing said casting by turning, or instead of making them of solid earthen-
ware, I form castor bowls by building them up of an outer running ring or
periphery a, a central bush or bearing b, and two side cheeks c fitting recesses in
the sides of the outer running ring or periphery a.
The outer running ring or periphery a may be made of metal, vulcanized fibre
or other suitable material, whereby the periphery or running ring may be of
different material from that forming the sides or cheeks c and central bush b.
When employing vulcanized fibre or other material than metal for the periphery or
running ring I make the aperture therein as represented in the form shown at
Figures 1, 2, 3, so small that the central bush or bearing 6 requires some amount
of power applied thereto to force it into position within such aperture, but when
making such outer running ring or periphery of metal I preferably make the
aperture therethrough as represented in the form shown at Figures 4 to 7, much
larger in diameter than that of the central bush or bearing in order to secure
lightness of weight.
The sides or cheeks are stamped from sheet metal whilst the metal running ring
and central bush or bearing may be made of suitable lengths of drawn tubing
fitting tightly the one over the other so as to leave a shoulder at each end for
rivetting or spinning over, or they may be cast of suitable shape, examples of
each of which constructions are shown in the drawings. When the main portion or
periphery a of the wheel is made of vulcanized fibre or other material than metal, it
may be turned out of the solid or produced by means of dies and pressure.
The side cheeks c are made of such external diameter in relation to the recesses
in the running ring or periphery a, and the aperture therein is made of such diameter
in relation to the central bush or bearing 6 as to require some amount of power
applied thereto to force them into position within the side apertures in the outer
running ring or periphery a and over the bosses of the central bush or bearing b.
After the parts are forced together as above described, the bosses of the central
bush or bearing bare rivetted or spun over and the side rims of the outer running
ring a, when the latter is made of metal, are also rivetted or spun over the outer
edges of the side cheeks e to secure the parts firmly together.
:

page_text: 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. A castor bowl built up of a central bush or bearing with reduced ends,.
centrally perforated side cheeks fitting tightly such reduced ends, and a running
ring with side recesses fitting tightly the side cheeks the whole being secured
together by rivetting or burring the ends of the central bush or bearing and the
edges of the running ring or periphery substantially as herein shown and described.
2. In a castor bowl built up as herein described, a central bush or bearing
having reduced ends to form shoulders for the reception of a pair of side cheeks and
arranged to be rivetted or burred over such side cheeks as hereinbefore stated.
3. In a castor bowl built up as herein described, centrally perforated side cheeks
fitting tightly over the reduced ends of a central bush or bearing and held in
position thereon by rivetting or burring the ends of said central bush or bearing
as stated.
4. In a castor bowl built up as herein described, a centrally perforated running
ring fitted tightly on a central bush or bearing and provided with side recesses
for the reception of a pair of side cheeks fitted on the reduced ends of said central
bush or bearing as herein shown and described.
5. In a castor bowl built up as herein described, a running ring provided with
circular side recesses to receive a pair of side cheeks fitted on the reduced ends of
a central bush or bearing and arranged to leave a circular space between the.
central bush, the side cheeks and the running ring as shown and described.
6. The improved construction of castor bowl substantially as herein set forth.
DL 11000
HARRIS & MILLS,
23 Southampton Buildings, London, W.C., Agents.