IMPROVEMENTS IN THE CONSTRUCTION OF PORTABLE HAND PUMPS FOR THE EXTINGUISHMENT OF FIRE OR OTHER PURPOSES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
SAMUEL BENJAMIN WILKINS 1 Parliament Square Edinburgh, Fire Master of the
City of Edinburgh in the County of Mid-Lothian, I, do hereby declare the nature
of my Invention for IMPROVEMENTS IN THE CONSTRUCTION OF PORTABLE HAND
PUMPS FOR THE EXTINGUISHMENT OF FIRE OR OTHER PURPOSES to be as
follows:-
a
Improvements in the construction of portable hand pumps, for extinguishing
fires or other purposes to simplify and ease its working, thereby allowing it to
be worked at a much greater speed with considerably less manual labour, and
discharging the water upon the burning or other material with greater force, than
can be accomplished by the present mode of working the ordinary hand pump now
in uso. To carry this mode of working into effect, I place on the upper or outer
end of the piston rod, instead of a handle as now used for a person raising it up in
perpendicular position, and forcing it downwards to make the motion, I connect
a cross head or a sloted piece of metal, to which I attach a connecting rod, the other
end of this rod being connected to a pin fixed on the outer edge of a disc or round
plate or a wheel which forms a crank motion. This disc, round plate or wheel is
secured to a spindle or shaft working through a plumber block or bush. This
plumber block or bush is supported by means of a bracket secured to the pail or
cistern in which the pump is placed. To the other end of the spindlo or shaft is
fixed a handle for turning the disc, plate or wheel round which forms the pump
motion. The whole of this arrangement is kept within the space of the diameter
of the pail or cistern in which the pump is placed, thus offering no obstruction to
its being placed in a hall or lobby.
Dated thi. Ni sh down T1001

page_text: SAMUEL BENJAMIN WILKINS, 1 Parliament Square Edinburgh, Fire Master of
the City of Edinburgh in the County of Mid-Lothian, I do hereby declare the
nature of my Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF "PORTABLE
HAND PUMPS " FOR THE EXTINGUISHMENT OF FIRE OR OTHER PURPOSES and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
To simplify and ease its working thereby allowing it to be worked at a much
greater speed, with considerably less manual labour, and discharging the water
upon the burning or other material with greater force than can be accomplished by
the present mode of working the ordinary hand pump now in use. To carry this
mode of working into effect, I place on the upper or outer end of the piston rod,
instead of a handle as now used for a person raising it up in a perpendicular
position and forcing it downwards to make the motion, I connect a crosshead or a
slotted piece of metal, to which I attach a connecting rod the outer end of this rod
being connected to a pin fixed on the outer edge of the disc or round plate, or a
wheel which forms a crank motion. This disc round plate or wheel is secured to a
spindle or shaft working through a pillow block or bush. The pillar block or bush
is supported by means of a bracket secured to the pail or cistern in which the pump
is placed. To the other end of the spindle or shaft is fixed a handle for turning
the disc, plate or wheel round which forms the pump motion. The whole of this
arrangement is kept within the space of the diameter of the pail or cistern in
which the pump is placed thus offering no obstruction to its being placed in a hall
or lobby.
And in order that my said Invention may be properly understood, I now proceed
more particularly to set forth the system, mode or manner in or under which the
same is or may be used or practically carried into effect, reference being had to the
annexed Sheet of Drawings, and to the letters and figures marked thereon, that is
to say.
Figure I, is a front view of my improvements to simplify and case the working
of the portable hand pumps in present use.
Letter (A) is a metallic cistern for holding water, (B) the pump, (C) piston rod,
(D) forked eye screwed on the end of piston rod, (E) connecting rod, (F) crank pin,
(G) disc, plate or wheel, (H) revolving shaft, (1) iron bracket for supporting pillow
block for revolving shaft, (K) bracket for hand to rest on to steady the pump when
working (L) driving handle, (M) delivery outlet.
Figure 11, fully illustrates my improvements, (E) section of connecting rod,
(F) section of crank pin, (G) section of disc, plate or wheel, (H) section of revolving
sbaft, (1) front view of iron bracket for supporting pillow block for revolving
shaft, (J) front view and section of pillow block, (K) bracket for hand to rest on to
steady the pump when working (L) driving handle.
Figure III, shows a front view and section of connecting rod.
By these arrangements it will thus be seen that a great amount of manual labour
required to work the ordinary band pump in present use, by a person having to
raise the plunger up in a perpendicular position and forcing it downwards to make
the motion will be very greatly reduced. One great feature in these improvements
is that they can be easily fitted to any of the hand pumps in present use at a
reasonable cost.
Having now described and particularly ascertained the nature of my said
Invention, and the system mode or manner in or under which the same is o

page_text: may be used or practically carried into effect, I would observe in conclusion that
what I claim as my Invention is the application of a disc, plate or wheel, keyed on
a revolving shaft which is moved by a cranked handle, the revolving shaft being
supported on a pillow block. A pin is also fixed on the disc, plate or wheel to
which one end of the connecting rod is attached, the other end of the connecting
rod being attached to the forked eyo screwed into the end of the piston rod of the
pump.
In witness whereof, I, the said Samuel Benjamin Wilkins have here-unto set
my hand and seal this Twelfth day of May One thousand eight hundred and
eighty-four
SAMUEL BENJAMIN WILKINS.