Improvements in Casters.
Year: 1896

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 18 of the Patents, &c. Act, 1883) as allowed by
the decision of the Comptroller General of the 30th day of April 1898.
Date of Application, 16th Nov., 1896
Complete Specification Left, 16th Aug., 1897-Accepted, 16th Oct., 1897
Improvements in Casters.
We, NICHOLAS PROUD and JAMES PERCY ERNEST PROUD, both of 20, Westmore-
land Street, Dublin, Ireland, Gentlemen, do hereby declare the nature of this
invention to be as follows:-
Our invention relates to casters of the kind wherein the caster wheel is mounted
in a casing having a conical or substantially conical recess which receives a
correspondingly shaped pin affixed to the article to be supported, such casters,
for instance, as those described in the Specification of former Letters Patent
Nos. 18783/4 and 15811/95.
The object of our present invention is to improve the means of fixing such
casters to articles of furniture or other objects to be moved.
According to our present invention the conical pin is of such a length that it
only just projects above the rotating casing and in the case where the said pin
is applied to the leg of a chair, table or the like the fixing screws serve also for
preventing the two parts of the caster from becoming separated the casing having
an internal groove for receiving the heads of the said screws which are placed
in position through a hole formed, through the side of the rotating casing into
the said groove.
When the caster is to be adapted for luggage baskets such as Post Office
parcel baskets, trolleys, and the like, the pin has formed integral with it or
firmly secured to it a metal plate designed to bear against the underside of the
basket or the like, the said plate being so arranged that it only just clears the
top of the rotating casing. This plate may have a screwed stud or shank upon it
which forms a continuation of the pin portion of the caster the said shank being
screw-threaded to carry the nut for pressing or holding the bottom of the basket
between the lower plate and another plate forming a washer upon the stud.
In some cases the said shank is formed upon the said washer plate just referred
to, the lower end of the shank in this case being screw-threaded and introduced
into a correspondingly screw-threaded opening formed through the lower plate
and in the pin portion of the caster.
It is to be understood that when this mode of fixing is adopted the screws herein-.
before referred to, having their heads in the groove in the casing, serve only for
preventing the two parts of the casing from becoming separated.
1 13.
1011
N1000

page_text: Improvements in Casters.
We, NICHOLAS PROUD and JAMES PERCY ERNEST, PROUD, both of 20, Westmore-
land Street, Dublin, Ireland, Gentlemen, 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:-
Our invention relates to casters of the kind wherein the caster wheel is mounted
in a casing having a conical or substantially conical recess which receives a
correspondingly shaped pin affixed to the article to the supported, such casters,
for instance, as those described in the Specifications of former Letters Patent
Nos. 18783/94 and 15811/95.
The object of our present invention is to improve the means of fixing such
casters to articles of furniture or other objects to be moved.
The invention will be best understood by reference to the accompanying
drawings in which
Figure is an elevation, and
Figure 2 a vertical section of one form of our improved caster.
Figure 3 is a horizontal section on the line 3-3 of Figure 2 and
Figure 4 is a vertical section of a second form of the caster.
Like letters indicate like parts throughout the drawings.
According to our present. invention the conical pin A is of such a length that,
as shown in the drawings, it only just projects above the rotating casing B.
In the case where the pin A is applied to the leg of a chair, table or the like as
shown in Figures 1, 2 and 3 wherein C represents a portion of such a
leg, the
pin A is formed preferably in the shape of a taper or conical socket for receiving
the end of the said leg and is perforated to receive conveniently two or more
screws D, preferably three as represented in Fig. 3 by means of which the pin
or socket A is secured to the leg C. The casing B is provided with an internal
groove B the surrounding wall of which is perforated at B2 to admit of the
screws D being screwed into the leg C when the parts BA and C are fitted together
or one over another in the manner shown in Fig. 2, the casing B being turned
around the pin or socket A to the positions necessary for the insertion of the
screws 1); the rounded or otherwise projecting heads of the screws D by engaging
with the groove 13 prevent the parts A and B from becoming separated.
The pin or socket A and casing B are so arranged that they are in contact
only at the upper and lower parts as shown in Fig. 2 so as to reduce friction to
a minimum and the casing B is provided with the necessary housing B for
receiving the roller E substantially as indicated in the aforesaid Specification
No. 15811/95.
When the caster is to be adapted for luggage baskets such as post office
parcel baskets, trolleys and the like the pin A which as shown in Fig. 4 may
be solid has formed integral with it or firmly secured to it a metal plate F
designed to bear against the underside of the basket or the like G, the said
plate being so arranged that it only just clears the top of the rotating casing B.
The plate F may have a stud or shank A upon it, which as it were forms a
continuation of the pin A. the said shank being screw-threaded to receive a nut A²
for pressing or holding the bottom of the basket between the lower plate F and
a plate F forming a loose washer upon the stud A¹.
The plate F may be separate from the pin A and adapted to bear on an annular
shoulder or projection thereon.
In some cases the shank A¹ is formed upon the washer plate F¹ and its lower

page_text: end is screw threaded and adapted to engage with a corresponding screw threaded
opening formed in the plate F and pin A.
In the arrangements described in connection with Fig. 4 the screws D serve
only for preventing the two parts A, B of the caster from becoming separated
and are quite independent of the means for fixing the caster to the basket or
device on which it is mounted.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is:
1. A caster consisting of two separable parts such as A B so arranged that when
applied to a piece of furniture the screws 1) which serve for securing the part A to
the piece of furniture also serve for retaining the two parts together substantially
as described with reference to Figures 1, 2 and 3 of the accompanying drawings.
2. The combination and arrangement of parts constituting the complete caster
substantially as described and illustrated in Figures 1, 2 and 3 of the accompanying
drawings.
3. The combination with a caster comprising two parts such as A and B
swivelled together by screws D engaging in a surrounding groove B₁ of means
for connecting it to a basket trolley or the like substantially as described and
illustrated in Figure 4 of the accompanying drawings.
4. In a caster a fixed member comprising a conical portion A a reduced shank A¹
nut A and plates F and F substantially as described and illustrated in Figure 4
of the accompanying drawings.
5. The complete basket caster and fixing substantially as described and illus-
trated in Figure 4 of the accompanying drawings.
Dated this 16th day of August 1897.
BOULT & WADE,
Agents for the Applicant.