AN IMPROVED BEARING FOR VEHICLES SPECIALLY APPLICABLE TO COLLIERY CORVES KNOWN ALSO AS TUBS, WAGONS, TRAMS AND HUTCHES
Year: 1884

page_text: We ROBERT LIDDELL WATSON Engineer and JOHN ROBERT WILSON Colliery
Manager both of Swaithe Main Collieries Barnsley in the County of York do
hereby declaro the nature of our Invention for AN IMPROVED BEARING FOR
VEHICLES SPECIALLY APPLICABLE TO COLLIERY CORVES KNOWN ALSO AS TUBS,
WAGONS, TRAMS AND HUTCHES and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :—
This Invention consists in the construction in one piece of n self-lubricating
bush, for corves, tubs, wagons, or trams having in combination a box for tho
lubricant (or grease box) a strap for retaining the axle in position and flanges for
securing the bush to the frame the under part of the bush being cut away or being
in the form of a narrow strap so as to allow the greater portion of the journal of
the axle to revolve free, the full length of the bush bearing only on the top part
of the axle. The bush is made as narrow as possible so as not to project beyond
the frame being practically of the width only of the frame thus being little liable
to injury for this purpose the wood frame is cut away or recessed to admit the
lubricant to the upper part-or grease box of the bush. The accompanying
Drawings illustrate our Invention. The same letters refer to similar parts
throughout the several views:
Fig. 1 is a front view in elevation of the bush fixed to the wood frame of the
corf, tub, wagon, or tram.
Fig. 2 is a plan or top view of the bush.
Fig. 3 is a transverse vertical section as taken through the dotted line YZ
(Fig. 1) the upper part of the wood frame being broken off.
A is the bush and A' and A' are flanges by which it is secured to the wood
frame;
B is the wood frame of the corf C is a recess in the wood frame, D is a
lid which covers the front of the recess C in the wood frame B; E is a pin on
which tho lid D turns; G is the journal of the corf axle; the lower part of the
bush (A) is cut away so as to surround the journal of the axle G in part only,
the end of the axle and the under part thereof working free, the underside of the
bush (A³) is only a narrow strap to retain the axle in position. The upper part of

page_text: the bush is made hollow to form a grease box and the cavity C in the wood
frame is formed to admit of the passage of the grease into the upper part of
the bush.
The bush is secured to the wood frame by holts and nuts; the back and sides
of the upper part of the grease box are, or can be, made to project into the wood
frame the wood frame being recessed for that purpose.
The bush illustrated is one for a corf having outside bearings but a similar
construction of bush is equally applicable to curves with inside bearings.
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:
The construction of a self-lubricating bush in one piece for corves, tubs, wagons,
or trams with cavity to contain the lubricant, strap A³ to retain the axle in
position and allow it to work as free from friction as possible, flanges A¹ A³ to
secure it to the frame, the bush being practically of the width only of the frame.
4th 1001.