An Improved Lubricating Device.
Year: 1888

page_text: Date of Application, 5th Nov., 1888
Complete Specification Left, 3rd Aug., 1889-Accepted, 7th Sept., 1889
PROVISIONAL SPECIFICATION.
An Improved Lubricating Device.
I, JOHN SNOWDON, the Younger, of 38 Old Church Road, Stepney, London, E.
Manufacturer, do hereby declare the nature of this invention to be as follows
My Invention consists essentially in the production of a lubricating device wherein
is embodied and combined in one lubricator the important features and functions of
the needle, worm or rod, and plunger or piston.
The lubricator according to my Invention may be formed wholly or in part of
glass, metal or other suitable substance or substances. It has at its lower part a
tubular contraction or neck which may be plain or corrugated; or, if desired, a
screw thread may be formed thereon to allow of the attachment of the lubricator
to the object to be lubricated. Within the body of the lubricator is a plunger or
piston of any suitable material or substance baving adapted centrally thereto a tube
which passes through and moves freely within a hole formed centrally in a cap or
cover devised to slip or screw on to the upper part of the body of the lubricator.
Within the tube aforesaid of the plunger or piston-which serves as a support or
guide is a needle, worm or rod of any suitable shape and material extending
through and beyond the tubular contraction or neck of the lubricator. The plunger
or piston which may be flat, concave, convex or of other convenient shape,-
presses by its own weight upon the lubricant, tending to force the same out through
the tubular neck aforesaid of the lubricating device; or, if desired, the pressure of
the plunger may be increased by ausiliary weights, such for instance as shot, or by a
spring, screw or equivalent means.
A lubricator constructed in the manner above described is specially applicable for
use with solid lubricants, such as Asbestoline or the like.
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1000
JAMES
STEVENSON,
20, High Holborn, London, W.C., Agent for Applicant.
COMPLETE SPECIFICATION.
An Improved Lubricating Device.
I, JOHN SNOWDON, the younger, of 38, Old Church Road, Stepney, London, E.,
Manufacturer, 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 consists essentially in the production of a lubricating device wherein
is embodied and combined in one lubricator the important features and functions of
the needle, worm or rod, and plunger or piston.
And in order that my Invention may be thoroughly understood 1 have appended
the accompanying drawings.
Fig. 1 is an elevation, partly in section, of one arrangement of my lubricator, and
Fig. 2 a section of a modified arrangement.
The body A of the lubricator may be formed wholly or in part of glass, metal or
other suitable substance or substances. It has at its lower part a tubular contraction
or neck B, which may be plain, as in Fig. 1, or corrugated; or, if desired, a screw-
thread a may be formed thereon to allow of the lubricator being attached to the
object to be lubricated. Within the body of the lubricator is a plunger or piston C
of any suitable material or substance having adapted centrally thereto a tube D which
passes through and moves freely within a hole E formed centrally in a cap or cover F,
devised to slip or screw on to the upper part of the body of the lubricator.
Within

page_text: the tube D of the plunger or piston, which serves as a guide or support is a needle G,
Fig. 1, worm G', Fig. 2 or rod, of any suitable shape and material extending through
and beyond the tubular contraction or neck of the lubricator. The needle, worm, or
rod rests at its lower end on the shaft or journal to be lubricated, in the well-known
manner. The plunger or piston C, which may be curved, Fig. 1, or flat, Fig. 2,
or of other convenient shape, presses by its own weight upon the lubricant, tending
to force the same out through the tubular neck B of the lubricating device; or,
if desired, the pressure of the plunger may be increased by an auxiliary weight H,
Fig. 1, or weights, such for instance as shot, or by a spring I, Fig. 2, screw or
equivalent means.
A lubricator constructed in the manner above described is specially applicable for
use with semi-solid or what are technically known as "solid" lubricants, such as
Asbestoline or the like.
The needle or the like may be of a definite length and as the plunger moves
down, the length of same projecting from the tube D of the plunger serves as a means
of ascertaining the amount of lubricant in the lubricator, when the body of the latter
is not formed of glass or other transparent material.
I am aware that lubricators having separately, pistons alone or provided with
weights, springs, etc., and also lubricators separately provided with the worm,
needle or rod device have been used before, and I make no claim to the separate use
of any of these arrangements, but that what I claim is :-
In lubricators for solid lubricants the combination of the lubricator body, screwed
or otherwise attached to the part to be lubricated, the piston or plunger moving therein,
and the worm, needle or rod passing therethrough and resting on the shaft or journal
to be lubricated, substantially as described and illustrated by the accompanying
drawings.
ՄՇԱ Dis day of august 2009.
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C., Agent for Applicant.