Improvements in Mechanism for Fishing Up or Replacing the Clack or Bottom Valve from Bucket Pumps when Required for Repair or other purpose.
Year: 1890

page_text: Date of Application, 21st Oct., 1890
Complete Specification Left, 21st July, 139!-Accepted, 5th Sept., 1891
PROVISIONAL SPECIFICATION.
Improvements in Mechanism for Fishing Up or Replacing the Clack
or Bottom Valve from Bucket Pumps when Required for Repair
or other purpose.
I CHARLES LEWIS of 120 Duke Street St. Helens in the County of Lancaster
Steam Engine Erector do hereby declare the nature of my invention for IMPROVE-
MENTS IN MECHANISM FOR FISHING UP OR REPLACING THE CLACK OR BOTTOM
VALVE FROM BUCKET PUMPS WHEN REQUIRED FOR REPAIR OR OTHER PURPOSE
to be as follows
And consist of constructing or making the bows in complete castings, or in
forgings, of wrought or other iron or steel with the exceptions of two studs or
stoppers thereto. The bow will be a ring, the section of which is oblong and
which is attached by two arms (the sections of which are square) to a boss fitted
and fastened to the spindle of the pump clack by means of a cotter. The above
mentioned ring has two spaces or slots cut away from the inside to admit of the two
lifting wings of the fishhead (hereinafter referred to) going easily through. The
arms are designed to guide the two lifting wings through the spaces or slots in the
ring of bow. The ring on the under side is fitted with two studs or stoppers which
are placed in such positions as to form guides of fishhead on the opposite sides of
the spaces or slots to those of the arms and which also act as stoppers so as
to prevent fishhead from becoming detached from bow whilst being hoisted or
lifted.
The fishheads to be made complete of iron or steel castings or forgings and to
consist of four wings each at right angles and equal distance apart and designed so
as to be attached to the pump rods on the under side of the bucket and to remain
there permanently. Two of the wings are to be used for lifting the bow and which
wings may be either permanently fixed or removable as may be desired and the
other two are to be used for keeping the fishhead central over the bow. The lifting
wings are of such a diameter as to pass easily through the spaces or slots in the ring
of bow and the upper portion is reduced to the same diameter as the guiding wings
thus forming a set off which gets on the under side of the ring of bow after being
partly turned round by turning slightly the pump rod and thereby getting a good
hold of bow.
The object of the invention is to facilitate the removal and replacement of
defective pump clacks and whereby a gain is obtained of at least two thirds of the
time occupied at the present time in so doing and also to avoid the necessity of
employing divers to repair or replace such pump clacks.
Dated this Eighteenth day of October 1890.
CHARLES LEWIS.
COMPLETE SPECIFICATION.
Improvements in Mechanism for Fishing Up or Replacing the Clack
or Bottom Valve from Bucket Pumps when Required for Repair
or other purpose.
I, CHARLES LEWIS of 69 Campbell Street, St. Helens in the County of
Lancaster, 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 obiect of this invention is to facilitate the removal and replacement of

page_text: seating from the clack box through the pump barrel, the combination of a ring A
attached to either the clack seating or the bucket, (or its equivalent the pump rod)
and vaned fish head D permanently attached to the other of them (the bucket or
clack seating), and capable of passing through the ring and hooking securely
thereon, whereby the clack and seating can be drawn up by the pump rod or let
down by same.
2. The combination of pump bucket, clack bows and fish head or wings D,
substantially as herein described.
Date : 01- LT1 1001
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Nottingham, and London,
Patent Agents.