Improvement in Castors, Antifriction Rollers and the like.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvement in Castors, Antifriction Rollers and the like.
MESSRS. COPE & TIMMINS LIMITED, Brassfounders, and JOSEPH GEORGE
ROLLASON, Tool Maker, of Summer Works, Icknield Square, Birmingham, do
hereby declare the nature of this invention to be as follows:-
Instead of rivetting the wheels, bowls, or rollers in the usual manner we make
a bush of any suitable material on which the wheel can revolve easily & some-
what longer than the width of the wheel, having a central hole which fits the pins
tightly. We make the space between the horns, cheeks, or side pieces a tight
fit for the bush.
We make the pin in two parts of such length that they will nearly meet in
the middle of the bush. We drill the horns a tight fit for the pins.
When assembling & putting together we place the bowl on the bush & force
the bush between the horns then we drive the half pins in from either side &
being tight in the horns & in the bush they prevent the bush turning but allow
the wheel to revolve easily.
We have described our invention as applied to castors, but it is equally
applicable to rollers, pulleys and to similar articles.
Dated this 9th day of November 1899
Improvement in Castors, Antifriction Rollers and the like.
MESSRS. COPE & TIMMINS LIMITED, Brassfounders, and JOSEPH GEORGE
ROLLASON, Tool Maker, of Summer Works, Ickuield Square, Birmingham, 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 follow-
ing statement:—
Instead of rivetting the axle on which the wheel, bowl or roller revolves in
the usual manner through the horns, cheeks or side pieces we make a hollow
axle or bush of any suitable material on which the wheel can revolve somewhat
longer than the wheel and a tight fit for the space between the horns. Through
this bush we make a hole to receive the pin. We make the pin in two parts
which nearly meet in the middle of the hollow axle or bush. Each part is
.
037

page_text: formed with a head of any required shape and is a tight fit both in the horn aud
in the hollow axle or bush, or we form a shoulder on the part which fits in the
horn so as to ensure its being tight therein.
Drawing No. 1 shows the hollow axle which may be a piece of tube or a piece
of metal bent up into tubular form and the ends may be serrated as shown ou
Drawing No. 2 to prevent them turning round.
Drawing No. 3 shows a half pin.
Drawing No. 4 shows a half pin with shoulder.
Drawing No. 5 shows a wheel fixed in complete, in which A is the wheel B
&B are the horns. The hollow axle is shown with plain end No. 1 and the
serrated end No. 2 and the pin plain No. 3 and shouldered No. 4
When putting in the wheel A we place it on the hollow axle No. 1 or 2 and
force same between the horns B, B which are made a tight fit for same then
when the hole in the hollow axle is opposite the holes in the horns we drive in
the half pins No. 3 or No. 4. By this means we secure a very firm axle which
is prevented from turning by being tight between the horns and on the pins;
and avoid the usual process of rivetting which always spoils the side surface of
the horns.
We have described our invention as applied to castors but we do not limit
ourselves to the particular forms shown which we can modify as required either
for frame pulleys for windows; sash or door rollers and other kinds of anti-
friction rollers and the liko.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that
what we claim is:
A method of fixing wheels bowls rollers and the like in their frames by means
of a hollow axle or bush fitted tightly between the horns, cheeks or side pieces
and a pin formed in two parts and driven in to the said hollow axle, substantially
as described and shown on the drawings.
D
A
1000