Improvements in Pumps, Specially Applicable to Life Boats and other Small Craft.
Year: 1887

page_text: Date of Application, 13th July, 1887
- "Complete Left, 12th Apr., 1888
Complete Accepted, 18th May, 1888
PROVISIONAL SPECIFICATION.
. Improvements in Pumps, Specially Applicable to Life Boats and
other Small Craft.
I EDWIN JAMES PRESTON of the firm of J. Stone & Co. of Deptford in the
County of Kent, Engineers do hereby declare the nature of this invention to be as
follows:-.
This invention refers to that kind of pumps for life boats and other small craft in
which the barrel of the pump is below the level of the deck, floor boards or the like.
Heretofore in such pumps when not in use the handle of the pump bucket rod pro-
jected above the level of the deck being thereby inconveniently in the way or the
whole pump bucket or part of same had to be removed and was liable to be mislaid
or lost and not be ready for use just when required.
According to this invention I improve the construction of such pumps. I make.
the upper part of the pump with a recess of a form to correspond with the shape
of the handle of the pump bucket rod so that when the pump is not required the
handle is pushed down below the level of the deck. A cover is hinged to the recessed
upper part of the pump and so as to lie flush with the deck. The cover prevents
any dirt from finding its way down the pump and into the valves. The bucket valve
or valves may be hinged. The suction valve may be arranged in a seat placed in a
conical part of the barrel so as to be easily removed for inspection. The aforesaid
upper part of pump is by preference a separate piece screwed onto the barrel and
serving to secure the pump to the deck or floor boards the barrel may be removed by
means of a tee key or spanner for repairs or other purpose.
n
"
EDWIN JAMES PRESTON.
By Jensen & Son,
77, Chancery Lane, London, W.C.,
Patent Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in Pumps, Specially Applicable to Life Boats and
other Small Craft.
I, EDWIN JAMES PRESTON of the firm of J. Stone & Co., of Deptford in the
County of Kent Engineers do hereby declare the nature of the said 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 refers to that kind of pumps for life boats and other small craft in
which the barrel of the pump is below the level of the deck floor boards or the like.
Heretofore in such pumps when not in use the handle of the pump bucket rod pro-
jected above the level of the deck being thereby inconveniently in the way or the
whole pump bucket or part of same had to be removed and was liable to be mislaid or
lost and not be ready for use just when required.
According to this invention I improve the construction of such pumps. I make
the upper part of the pump with a recess of a form to correspond with the shape of
the handle of the pump bucket rod so that when the pump is not required the handle
is pushed down below the level of the deck. A cover is hinged to the recessed upper
part of the pump and so as to lie flush with the deck. The cover prevents any dirt
from finding its way down the pump and into the valves. The bucket valve or valves
may be hinged. The suction valve may be arranged in a seat placed in a conical part
of the barrel so as to be easily removed for inspection. The aforesaid upper part of
pump is by preference a separate piece screwed onto the barrel and serving to secure
the pump to the deck or floor boards. The barrel may be removed by means of a tee
key or spanner for repairs or other purpose.
Figure 1 of the accompanying drawings is a vertical section through a pump con-
structed according to this invention, Figure 2 a plan of same with the lid removed
and. Figure 3 a plan of the lid.
The upper part A of the pump is by preference made separate from and screwed
onto the barrel B. This upper part A is made with a recess A¹ on each side of the
barrel the recesses being of a form to correspond with the shape of the wooden
handle C of the pump bucket rod D so that when the pump is not in use the
handle C is pushed down below the deck. The part A is formed with a flange provided
with holes, in this case twelve in number for bolting it down onto the deck. The
flange may be let in so as to be flush with the deck. E is a cover which by lugs E¹
is hinged to the corresponding lug on the flange part A and so as to lie flush with
its upper side or with the deck. The lugs are low and are chamfered off so as
to offer little obstruction.
The cover E prevents any dirt from finding its way down the pump and valves.
The pin e in a recossed part of the cover serves to raise it by. The barrel B is formed
with two holes 6 for inserting a T key when it is desired to unscrew and remove

page_text: the barrel and the lower valve part of same and also at the same time if required the
bucket with rod and handle. The bucket valve F may be of the form shewn being
guided on the bucket rod D or it may be hinged. The suction valve G is here
shewn hinged to a lug H which is screwed into the seat I. This latter is screwed
onto the bottom part of the barrel and can easily be removed for inspection being
formed with lugs I¹ for unscrewing. This arrangement of suction valve and bucket
takes up much less height than heretofore usual thus enabling me to obtain a
maximum length of stroke in cases of limited depth of hold.
Figure 4 is a vertical section through a modified form of upper part of pump
Figure 5 plan of same Figure 6 side elevation and Figure 7 a vertical section of
part of same the section being at right angles to that of Figure 4.
The arrangement of parts is very similar to that just described but I here provide
a ring K which by means of two thumb screws L is secured to the top of the barrel B
and covers the two holes formed in the latter. The thumb screws L are pinned
onto the ring K so that they cannot be lost or mislaid. The ring K is for the
purpose of preventing the bucket from being accidentally withdrawn from the
barrel.
In order to remove the barrel I first remove the ring K by screwing the screws L
out of the barrel and I can then by inserting a T key in the holes 6 unscrew the
barrel B from the flange part A. The lid E is held in place by the pivoted lug M.
In the form here shewn the hinge lugs are left almost flush with the deck so as to
offer no obstruction. C is the metal handle for the bucket rod.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is,
First Forming the upper part of pumps especially applicable for life boats and
other small craft recessed to correspond with the handle of the bucket rod for the
purpose of enabling the handle with rod and bucket when pushed down to offer no
obstruction above the deck when the pump is not in use and while enabling the pump
to be ready for use whenever required, substantially as set forth.
Second-The combination and arrangement of parts forming the improved
construction of pump described with reference to the accompanying drawings.
Dated this 12th day of Anril 1888