An Improved Lubricator and Anti-rattling Pad for Driving Chains of Velocipedes.
Year: 1895

page_text: Date of Application, 10 h Jan., 1895
Complete Specification Left. 10th Oct., 1895-Accepted, 16th Nov., 1895
PROVISIONAL SPECIFICATION.
An Improved Lubricator and Anti-rattling Pad for Driving Chains
of Velocipedes.
I, HORACE WALTER DOVER, of 15, Beaconsfield Terrace, Northampton,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to a combined chain lubricator and anti-rattling pad applied
to the gear cases in which the driving chains of bicycles and other velocipedes are
enclosed, and it has for its object to maintain a continuous and sufficient lubrication
of the chain and at same time to prevent the chain when slack from rattling against
the sides of the gear case.
The invention consists of a hollow backed U-shaped brush having the bristles
directed inwards, one of said brushes being within both the top and bottom halves
of the gear case and the one fitted in the top half being surmounted by an oil cup
or container communicating with the hollow back of the brush at the summit
thereof, through an orifice controlled by a pin valve to limit the supply of
the oil.
In order that the major part of the oil shall be conducted directly on to the
joints of the chain, a dabber is provided formed of tufts of long bristles set in the
summit of the brush back immediately beneath the oil cup, said tufts converging in
the downward direction so as to convey the oil where required and reaching down
a sufficient distance to lightly touch the top side of the chain which takes the oil
from the dabber in passing beneath it. The remaining bristles are of uniform
length and project inwards from the opposite sides of the U-shaped brush back just
far enough to touch the sides of the chain whilst allowing it to run freely between
them, the bristles serving to maintain the chain central within the case and prevent
it rattling against the sides of the gear case when loose. The bristles are all set in
a stock preferably of celluloid which is enclosed by a backing of sheet metal whose
inwardly turned edges embrace the edges of the celluloid strip, space being left
between the celluloid and metal casing to form a passage for the oil which flows
through the holes in the celluloid stock and is conducted by the bristles to the chain
which is thus kept efficiently lubricated.
The device as above described is fitted into a recess of corresponding form
countersunk on the inside of the gear case and is secured in place by screw bolts
passing through the two ends of the U-shaped brush and the sides of the gear case
which are thereby stiffened and maintained in shape.
C 1
1005
A. M. & W M. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.

page_text: An Improved Lubricator and Anti-rattling Pad for Driving Chains
of Velocipedes.
I, HORACE WALTER DOVER, of 15, Beaconsfield Terrace, Northampton,
Engineer, 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 :--
My invention relates to a combined chain labricator and anti-rattling pad applied
to the gear cases in which the driving chains of bicycles and other velocipedes are
enclosed, and it has for its object to maintain a continuous and sufficient lubrication
of the chain and at same time to prevent the chain when slack from rattling against
the sides of the gear case.
The invention consists of a U-shaped brush having the bristles directed inwards,
one of said brushes being within the top half and the other within the bottom half
of the gear case and the one fitted in the top half being surmounted by an oil cup
or container communicating with the surface of the brush through an orifice at the
summit of the brush back. In order that the major part of the oil shall be
conducted directly on to the joints of the chain, a dabber is provided formed of
tufts of long bristles set in the summit of the brush back immediately beneath
the oil cup, said tufts converging in the downward direction so as to convey the
oil where required and reaching down a sufficient distance to lightly touch
the top side of the chain which takes the oil from the dabber in passing beneath
it. The remaining bristles are of uniform length and project inwards from the
opposite sides of the U-shaped brush back just far enough to touch the sides of
the chain whilst allowing it to run freely between them, the bristles serving to
maintain the chain central within the case and prevent it rattling against the
sides of the gear case when loose. The bristles are all set in a stock, preferably
of celluloid, which is enclosed by a backing of sheet metal whose inwardly turned
edges embrace the edges of the celluloid strip. The device, as above described,
is fitted into recesses of corresponding form countersunk on the inside of the gear
case, each half being secured in place by screw bolts passing through the two ends
of the U-shaped brush and the sides of the gear case which are thereby stiffened
and maintained in shape.
The device is illustrated in the accompanying drawings, wherein Figure 1 is a
sectional side elevation showing the device with so much of the gear case as
is necessary to illustrate the invention, while Figure 2 is a cross-section on line 1-1
Figure 1. Figure 3 is a cross-section on an enlarged scale of the brush, serving to
illustrate the preferred form of brush stock.
A is the U-shaped brush or pad fitted in the top half, and B the brush or pad of
corresponding form fitted in the bottom half, of the gear case. The former is
provided with an oil container c of any known form, at its summit from which the
oil passes to the dabber which consists of tufts of long bristles set in the upper
portion of the brush A converging towards one another and serving to convey the
oil to the chain C. The brushes A and B are preferably fitted in correspondingly
shaped recesses in each half of the gear case and held in position by screw bolts d
which pass through the ends a, b, of the brush stock and the sides of the gear case
and are provided with nuts b', which screw against the exterior of the case and
prevent liability of the brush being accidentally detached. e, e, are strips of leather
or other suitable material each of which is clamped at the upper end by the nuts b',
to the exterior surface of the upper half of the gear case, the other ends of these
strips being free and resting against the upper portion of the brush surface of the
lower brush B. These strips serve to convey the oil as it trickles over the

page_text: surface of the upper brush to the lower brush and avoid liability which would
otherwise occur, of leakage of oil at the junction of the halves of the gear case.
The device is preferably secured to the gear case at its mid-length. The brush
stock is preferably made of the form shewn in cross-section in Figure 3, that is
to say thicker at the central portion than at the edges so as to afford sufficient
substance to securely hold the bristles in place. g is the metal backing for the
brush or pad, being a strip of metal whose edges are bent over the edges of
the stock.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1st. The herein described lubricator and anti-rattling pad for the driving chains
of velocipedes, substantially as specified.
2nd. The combination, with the gear case and the driving chain of a bicycle or
other velocipede, of an anti-rattling pad consisting of a pair of U-shaped brushes
constructed as described, one of the brushes being secured within the upper, and
the other within the lower, half of the gear case, substantially as specified.
Dated this 10th day of October 1895
A. M. & WM. CLARK,
53 Chancery Lane, London, Chartered Patent Agents.