Improvements connected with Grease Lubricators.
Year: 1892

page_text: Date of Application, 15th Aug., 1892
Complete Specification Left, 21st Oct., 1892-Accepted, 26th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements connected with Grease Lubricators.
I, WILLIAM WELSH BRANSTON, of the firm Parsons Fletcher and Co.,
Gravel Lane, Southwark, London, Grease Merchant, do hereby declare the nature
of this invention to be as follows:-
:-
This invention has for object, the construction of a grease lubricator in such a
manner that the quantity of grease in the article can be ascertained without the
necessity of removing the lid or cover.
For the purpose of my invention, I screw thread the inner wall of the grease
cup, and arrange a screw plunger or piston to be raised and lowered therein. The
stem of the piston has a square, or other angle face in its length, and the cover has
a correspondingly shaped hole to fit somewhat loosely on the stem to enable both to
be turned to the right, or to the left.
The cover has a depending flange, and a screw pin therein rides in an annular
groove formed in the outer rim or edge of the cup. The cover thus serves not only
to keep out dust but as a handle by which the stem and piston can be operated.
The height to which the stem projects above the cover indicates the quantity of
grease which the cup contains.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said W. W. Branston.
COMPLETE SPECIFICATION.
Improvements connected with Grease Lubricators.
I, WILLIAM WELSH BRANSTON, of the firm Parsons Fletcher and Co.,
Gravel Lane, Southwark, London, Grease Merchant, 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 :-
This invention has for object, the construction of a grease lubricator in such a
manner that the quantity of grease in the article can be ascertained without the
necessity of removing the lid or cover.
For the purpose of my invention and as shown in the annexed drawings, Figure 1,
perspective elevation, Figure 2, vertical section, I screw thread the inner wall of
the grease cup A and arrange a screw plunger or piston B to be raised and lowered
therein. The stem C of the piston has a square or other angle face in its length
and the cover D has a correspondingly shaped hole to fit somewhat loosely on the
stem C to enable both to be turned to the right, or to the left by an action on the
cover, or on the stem only.
The cover has a depending flange E, and a screw pin F therein rides in an
annular groove G formed in the outer rim or edge of the cup. The pin or pins F
are preferably in a ring H and this by the pins F, F, enables the cover to be held
on the cup by bayonet joints I, I, one being on either side. The cover D thus
serves not only to keep out dust but as a handle by which the stem C and piston B
can be operated. If the groove G be dispensed with, the ring H can be held by a
burring down of the edge of the cup.
The height to which the stem C projects above the cover D indicates the quantity
of grease which the cup contains.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The particular construction of grease lubricator shown on the annexed
drawings, the parts being arranged and operated in the manner and for the purpose
described.
2. Combining a cover and plunger stem of a grease lubricator that a turning
motion on one operates the other, and so lowers or raises the plunger without
separating them, as set forth.
Ine 21st day or October 1892,
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said William Welsh Branston.