A New or Improved Lubricator for the Pitch Chains of Bicycles and Tricycles.
Year: 1893

page_text: Date of Application, 5th May, 1893-Accepted, 10th June, 1893
COMPLETE SPECIFICATION.
A New or Improved Lubricator for the Pitch Chains of Bicycles
and Tricycles.
I, HENRY CLIFFORD HUGHES, of 15, Marlborough Road, St. John's Wood,
London, N.W. Gentleman, 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 object of my invention is to provide a lubricator for supplying oil in
regulated quantity to the driving pitch chain of a bicycle or tricycle when the
machine is running.
The invention is illustrated in the accompanying drawing, forming part of this
Specification, wherein
Figure 1 is an end elevation Figure 2 a side elevation (partly broken away) and
Figure 3 a plan of the improved lubricator in position above the lower member of
the driving chain. Figure 4 is a detail view, on a larger scale, of the device for
regulating the flow of the oil. The same letters of reference indicate the same
parts in all the figures.
9
b
The device consists of an oil box a, preferably in the form of a horizontal tube
closed at both ends and adjustably secured by a spring clip 6 and binding screw d
to the back lege, or other convenient part of the frame in such position as to be
directly over the lower member of the driving chain f, the box a being provided
with a flexible brush or dabber g consisting of a strip of leather, (or other suitable
material) to conduct the oil to the chain which as it runs comes lightly in contact
therewith. This strip g is secured between the jaws of a clip 4 which is mounted
on the end of the oil box a, the jaws being formed of a bent strip of spring metal
forcibly closed together by a cam lever i, so that when the lever is turned down
the jaws spring open to allow of the leather or other strip being readily adjusted
or replaced. The box a is closed at both ends and provided with an orifice in the
underside in the form of a slit k, (Figure 4) which is regulated by an encircling
band fitting friction tight around the box a. This band has an aperture m of
triangular or equivalent form, the edge of which is inclined with regard to the
slit k, so that by adjusting the band circularly upon the box a this edge will lie
across the slit so that the latter will be more or less covered and the area of the
orifice regulated accordingly. Instead of the band being apertured it might be
cut right across and one of its ends be inclined to answer the same purpose.
the slit k instead of being longitudinal, might be oblique the regulating edge of
the band being transverse thereto. The oil as it flows from this orifice, is con-
ducted, down an incline n carried by the clip, to the brush as fast as it is removed
from the latter by the contact of the chain. By this means the flow of oil may be
easily regulated and waste of oil avoided. The leather strip y is preferably
V-tongued at the extremity which comes in contact with the driving chain, so as to
conduct the oil to the points where it is required. The oil regulating band has its
ends bent outwards and rivetted together to form a handle by which to turn it
and its movement is limited by stops p' formed by the rearwardly-bent ends of a
wire p soldered around the box, between which and the flanged end of the box
the band is confined. The clip b encircles the box a and has rubber pads b' at
the parts which grip the frame e. The box a being cylindrical may be turned
round in the clip 6 to bring the brush directly over the chain, should the clip b not
be of the right length or to enable the device to be reversed, to prevent any oil
flowing out when the machine is not in use. The box a is provided with a filling
orifice o closed by a can.
Or

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A lubricator for the driving chains of bicycles and tricycles, consisting of an
oil box having an exit orifice in combination with means of regulating the area of
the orifice and with a flexible brush or strip for conveying the oil to the chain,
substantially as specified.
2. In the herein described lubricator, a cylindrical oil box having a slit in its
circumference encircled by a band having an edge which may be made to lie across
the slit by the circular adjustment of the band for regulating the flow, as
specified.
3. In the herein described lubricator, the combination, with the horizontal
cylindrical oil box provided with an exit orifice and regulator and a flexible brush
or dabber, as described, of a clip embracing the box for affixing it to the frame
and permitting its adjustment about its own axis, as specified.
4. The herein described lubricator consisting in the combination of the cylindrical
oil-box, the slitted orifice with circumferentially-adjustable encircling regulator,
the flexible strip or dabber, and the lever-closed spring clip holder for the strip,
substantially as specified.
CM 1000
H. C. HUGHES,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.