Improvements in and Additions to Cycle and other Air Pumps or Inflators, and in the Manufacture of Parts of the same.
Year: 1893

page_text: Date of Application, 5th July, 1893
Complete Specification Left, 5th Apr., 1894-Accepted, 5th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in and Additions to Cycle and other Air Pumps or
Inflators, and in the Manufacture of Parts of the same.
I, ROBERT FREDERICK HALL, Managing Director of The R. F. Hall Manu-
facturing Company Limited, of Sampson Road North, Sparkbrook, in the City of
Birmingham, do hereby declare the nature of this invention to be as follows:-
My invention relates to detail improvements in the construction of, and in the
accessories of, cycle and other air pumps or inflators, and in the manufacture of
parts of the same.
My invention relates in the first part, to the grips of air pumps; in the second
part, to tie-ups for the flexible tubes of the connections, in the third part, to the air
valve connections carried at the extremities of the flexible tubes; in the fourth part,
to the carrying clips, and in the fifth part, to the manufacture of certain forms of
grips.
In carrying out one form of the first part of my invention, I provide the outer
end of the piston rod, or that part adjacent to the flexible tube, with a grip in the
form of. a large ring, affixed to the piston rod, or to one side of the front of the
piston rod in a downwardly slanting direction, that is, in a slanting direction to
the barrel of the pump, through the outer cap of which the said piston rod
works.
The barrel of the pump forms the handle for the working of the instrument,
whilst the annular or ring grip is of sufficient size for the fore part of the hand to
pass through in order to lay hold of the same.
When in use, the said ring is taken hold of by the left hand, and the pump then
worked by the right hand, so that the piston remains stationary relative to the tyre,
and the barrel is reciprocated.
As a further form of grip, the inclined ring or annular part, which may be of the
figure of a cross-directed ellipse, is carried by a crescent or other shaped guard,
secured or permanently affixed to the outer end of the piston rod.
This guard, which is directed parallel or nearly so, to the cross direction of the
barrel, prevents portions of the hand from being pinched by coming between
opposed shoulders or parts.
As a still further form of this part of my invention, the downwardly inclined ring,
which may be elliptical or circular, is made only in the form of a grip, or rest for
the hand, without the hand being able to be introduced through its middle for
holding.
As a still further form of this part of my invention, both the guard and the grip
are made in the form of jointed-together rings, with the outer ends of the piston rod
passing through the guard ring or loop, and with the same attached to the inner
presented walls of the grip-ring which carries the guard-ring.
In a still further form of this first part of my invention, I make the grip in the
form of a shield or an arched piece of metal bent saddle wise and with the flaps of
the same depending or being directed towards the barrel, and through the middle
of which, the piston rod passes and is there affixed by brazing or otherwise.
The said saddle shaped grip may have a broad surface for the inside of the hand
to bear upon, and may, if necessary, be cut away or scolloped at the front.
Thus, in working the pump the fingers are placed around the end of the piston
rod, which is hollow, and wherethrough pumped air is forced, and with the inside
parts of the same coming upon the said saddle, whilst the barrel of the pump is laid
hold of by the other hand, and forced forward, and drawn backward.

page_text: In carrying out my invention of the fifth part, in connection with the manufacture
of the said grips when made in the form of finger bows, I make the said bows from
a strip or blank of sheet metal, with the said blank fashioned alike in shape to a
double dovetail or cone, with the narrow parts joined together, and pierced with a
hole suitable for the end of the piston rod to take through.
This blank is then fashioned bridge-wise into a double loop, with the inner walls
or bearing surfaces of the same broadened out or expanded, so as to present a large
surface to the parts of the hand coming in contact with them.
These combined finger bows are slipped over the end of the piston rod, and then
affixed by cross rivettings, with the stems of the rivets or pins directed on the two
opposite sides of the piston rod, and with the said stems taking into cross depressions
or grooves sunken within the opposite sides of the tube constituting the piston
rod.
By thus connecting the terminal ends of the loops of the finger bows in this
manner, the same are rigidly affixed, or the said extended-bearing finger bows may
be affixed in position by brazing. In such a case, I channel the terminal ends of
the loops in the direction of the piston rod, so that the said rod lies within the
groove when affixed.
In carrying out the second part of my invention in connection with the tie-up, I
provide the metallic connection at the end of the flexible pipe leading from the end
of the hollow piston rod, with a chain or flexible cord, having a screw cap at its
head, which takes upon a screwed peg or the like carried at a suitable part of the
barrel, so that by connecting the flexible end through the medium of the chain to
the pump barrel, the piston and piston rod are tied up, and retained within the said
barrel.
In carrying out the third and connection part of my invention, I take a box cap,
with a tail end upon which the flexible pipe takes, and with an axial hole through
its middle.
The bottom of the said box part is fitted with a washer or seating of vulcanized
fibre, leather, rubber or other like yielding material, with a central piercing of the
same cut out by a cutting-out tool, instead of the same being drilled as heretofore.
The box part or the mouth of the said connection is fitted with an inside
screwed bush, which takes and screws upon the male screwed part of the valve of
a tyre.
The inner end of the bush which is fitted sound within the cap, may come upon a
seating, or it may come within a short distance of it, so that when the connection is
serewed home upon the valve stalk, the end or tip of the said last-named part comes
upon the seating, and as a space is left for the seating to expand itself within, the
material is consequently outwardly pressed, leaving the said material of the seating
forced outwardly from around its central hole intact or clear.
The said seating is also prevented from being accidentally or otherwise withdrawn
or disarranged from its assigned position.
The connection collar, or the screwed stalk collar of the valve is annularly coned
sunken, so that a washer, when the male and female parts of the connection come
together, is forced towards the centre.
The nozzles or outlets of the air pumps may come upon one side of the outer
termination of the barrel, but in this case the grips are carried by the barrel, and
the piston rod is provided with a suitable handle for actuating the same.
In carrying out the fourth and clip part of my invention, I attach or affix to the
framing of a machine, two ring brackets, placed at suitable distances apart, and with
outer parts of them formed with concaved seatings, upon which the pump barrel
comes and rests.
In the middle of the space separating the said seatings comes a three-quarter
clip, with an upright limb or member terminated by a branched or forked end,
which forms an abutment and stop for limiting the motion of a spring encircling the
said upright member, and a second sliding member, branched with thumb rests upon
its lower part and with the upper part coming above and crossing the framing, as

page_text: aforesaid, between the brackets, and with the said upper or outstanding part made
semi-circular, and adapted to embrace the barrel of a pump resting upon the
brackets.
The end of this semi-circular or hook ended member is terminated by an enlarged
end, and upon and over the naked part, a rubber or like tube is stretched, so as to
prevent damage to the instrument, and to present a rubbered bearing surface.
When an air pump is required to be placed upon the framing of a machine, the
branched members of both parts are pressed together; when the spring yields, and
the rubber covered clipping member rises, so that an instrument can then be placed
in position, and the pressed-to parts released, when the rubber covered part
forcibly holds the instrument firmly up to the brackets by the force of the
spring.
As a further form of bracket clip, I take a length of strip or other metal, and
form the same into a double clip, of the figure of a letter M, or alike unto the figure
of a letter W.
The same is made from spring metal, and with the mouths or entrances contracted,
and when in use, one of the clips embraces and holds the barrel of an inflating
instrument, whilst the other clip takes upon the framing of a machine.
Dated thin 1th d
STL 1002
.
COMPLETE SPECIFICATION.
Improvements in and Additions to Cycle and other Air Pumps or
Inflators, and in the Manufacture of Parts of the same.
I, ROBERT FREDERICK HALL, Managing Director of The R. F. Hall
Manufacturing Company, Limited, of Sampson Road North, Sparkbrook, in the
City of Birmingham, 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 relates to detail improvements in the construction of, and in the
accessories of, cycle and other air pumps or inflators, and in the manufacture of
parts of the same.
My invention relates in the first part, to the grips of air pumps; in the second
part, to tie-ups for the flexible tubes of the connections; in the third part, to the
air valve connections carried at the extremities of the flexible tubes; in the fourth
part, to the carrying clips, and in the fifth part, to the manufacture of certain
forms of grips.
In carrying out one form of the first part of my invention, I provide.the outer
end of the piston rod, or that part adjacent to the flexible tube, with a grip in the
form of a large ring, affixed to the piston rod, or to one side of the front of the
piston rod in a downwardly slanting direction, that is, in a slanting direction to
the barrel of the pump, through the outer cap of which the said piston rod works.
The barrel of the pump forms the handle for the working of the instrument,
whilst the annular or ring grip is of sufficient size for the fore part of the hand to
pass through in order to lay hold of the same.
When in use, the said ring is taken hold of by the left hand, and the pump then
worked by the right hand, so that the piston remains stationary relative to the tyre,
and the barrel is reciprocated..
As a further form of grip, the inclined ring or annular part, which may be of

page_text: the figure of a cross-directed ellipse, is carried by a crescent or other shaped guard
secured or permanently affixed to the outer end of the piston rod.
This guard, which is directed parallel or nearly so, to the cross direction of the
barrel, prevents portions of the hand from being pinched by coming between
opposed shoulders or parts.
As a still further form of this part of my invention, the downwardly inclined
ring, which may be elliptical or circular, is made only in the form of a grip or rest
for the hand, without the hand being able to be introduced through its middle for
holding.
As a still further form of this part of my invention, both the guard and the grip
are made in the form of joined together rings, with the outer ends of the piston rod
passing through the guard ring or loop, and with the same attached to the inner
presented walls of the grip-ring, which carries the guard-ring.
In a still further form of this first part of my invention; I make the grip in the
form of a shield or an arched piece of metal bent saddle wise, and with the flaps
of the same depending or being directed towards the barrel, and through the
middle of which, the piston rod passes and is there affixed by brazing or
otherwise.
The said saddle shaped grip may have a broad surface for the inside of the hand
to bear upon, and may, if necessary, be cut away or scolloped at the front.
Thus; in working the pump, the fingers are placed around the end of the piston
rod, with the palm of the hand and the inside parts of the fingers coming upon the
back of the said saddle, whilst the barrel of the pump is laid hold of by the other
hand, and forced forward and drawn backward.
In carrying out my invention of the fifth part, in connection with the manufacture
of the said grips when made in the form of finger bows, I make the said bows from
a strip or blank of sheet metal, with the said blank fashioned alike in shape to a
double club with the narrow or handle-like parts joined together and pierced with
a hole suitable for the end of the piston rod to take through.
This blank is then fashioned bridge-wise into a loop, which is slipped over
the end of the piston rod, and then affixed thereto by a collar or by cross
rivettings.
In carrying out the second part of my invention in connection with the tie-up, I
provide the metallic connection at the end of the flexible pipe leading from the end
of the hollow piston rod, with a chain or flexible cord, having a screw cap at
its head, which takes upon a screwed peg or the like carried at a suitable part of
the barrel, so that by connecting the flexible end through the medium of the chain
to the pump barrel, the piston and piston rod are tied up, and. retained within the
said barrel.
In carrying out the third and metallic connection part of my invention, I take a
box cap, with a tail end upon which the flexible pipe takes, and with an axial hole
through its middle.
The bottom of the said box part is fitted with a washer or seating of vulcanized
fibre, leather, rubber or other like yielding material, with a central piercing of
the same cut out by a cutting-out tool, instead of the same being drilled as
heretofore.
The box part, or the mouth of the said connection, is fitted with an inside
screwed bush, which takes and screws upon the male screwed part of the valve of
a tyre.
The inner end of the bush, which is fitted sound within the box of the cap, may
come upon a seating, or it may come within a short distance of it, so that on the
connection being screwed home upon the valve stalk, the end or tip of the said last-
named part comes upon the seating and forces the material of the same outwardly
and away from the central piercing.
The said seating is thus also prevented from being accidentally or otherwise
withdrawn or disarranged from its assigned position.
In carrying out the fourth and clip part of my invention, I attach or affix to the

page_text: framing of a machine, two bearing brackets, placed at suitable distances apart, and
with parts of them formed with concaved seatings, upon which the pump barrel
comes and bears..
In the middle of the space separating the said seatings is a two-part clip, with an
adjustable limb or member with a hooked end adapted to embrace the barrel of a
pump through the action of a spring encircling parts of the members, of the said
two part clip.
The end of the semi-circular or hook ended part of the clip is terminated by an
enlarged end, and upon and over the naked part, a rubber or like tube is stretched,
so as to prevent damage to the instrument, and to present a rubbered bearing
surface.
When an air pump is required to be placed upon the framing of a machine, the
branched members of both parts are pressed together, when the spring yields, and
the rubber covered clipping member retires so that an instrument can then be
placed in position, and the pressed-to parts released when the rubber covered
part forcibly holds the instrument firmly up to the brackets by the force of the
spring.
As a further form of bracket clip, I take a length of strip or other metal, and
form the same into a double clip, of the figure of a letter M, or alike unto the
figure of a letter W.
The same is made from spring metal, and with the mouths or entrances
contracted, and when in use, one of the clips embraces and holds the barrel of an
inflating instrument, whilst the other clip takes upon the framing of a machine.
Figure 1 of the accompanying drawings represents in elevation, with the grip or
holding part in section, an air pump or a pneumatic tyre inflator constructed
according to or provided with improvements made in accordance with, one form of
my invention. The piston rod, which is hollow, is terminated by a flexible air
valve connection tied to the barrel, which constitutes the working handle, by an
attachable and detachable connection, whilst the grip or that part held by the
hand in working, is fixedly connected to the outer terminal end of the hollow piston
rod, whose inner end carries an ordinary piston and whose hollow middle forms the
passage or conduit up which air passes on the working of the pump.
Figure 2 represents a transverse vertical section upon the dotted lines A B
Figure 1.
a is the barrel or tubular casing, closed at one end at a², and with the hollow
piston rob b, working through a cap at the other end a¹. This barrel part a,
constitutes the handle or means by which the pump is worked, on the grip c,
carried by the end 62, of the hollow piston rod b, being held either by passing the
fingers from back to front through the loop of the said grip, or by the palm of a
hand of the operator being placed at the back of the grip, and then by reciprocating
the handle whilst the piston rod with piston is held stationary by the grip, air is
forced up the piston rod and through the flexible connection d, past the air valve
and into the tyre in the usual way.
The flexible connection is tied back when the pump is not in use, by a chain or
cord e, connected at one end to the barrel a, and having at the other end, a
swivelling and screwed plug e², having a collar stop e¹, and taking into the inside
screwed metal end d', of the flexible connection d.
Figure 3 represents a modified form of the grip or holding part of the pump.
Figure 4 represents an end elevation of the same.
In this modification, the loop or ring part constituting the grip is made smaller,
and is designed only to form an abutment for the same to bear against the palm of
the hand on the working of the pump.
a
Thus, when in use, the ring, loop or like grip c, is presented to the palm of the
hand which comes at the back of the said grip, so that as the barrel is
reciprocated for inflation the grip c, and the piston rod b, are held quiescent relative
to the tyre.

page_text: By holding the pump from the back of the ring, the fingers of the hand are
shielded from being pinched or nipped between the meeting parts of the pump.
Figure 5 represents partly in section and partly in elevation a pump or
inflator provided with improvements made according to a still further form of
my invention.
Figure 6 represents a topside plan of the fore end part of Figure 5, whilst
Figure 7 represents a front end elevation thereof, showing the grip armed with
a shield for preventing parts of the hand being nipped between fixed and movable
parts of the pump.
a is the barrel and is the hollow piston rod, terminated at its outer end by a
screwed nozzle 62, and having fitted and made fast to the said end, a combined hand
abutment or grip and shield c, c'. The former is directed at an acute angle relative
to the pump whilst the latter stands upwardly and at right angles to the said axis
and forms a defence for the hand.
Figure 8 represents a modification of the arrangement Figure 5, whilst Figure 9
is a front end elevation of Figure 8.
In this modification, two rings are united together to form a combined hand
abutment or grip and shield.
I wish it to be understood that the shape of the shield is immaterial so long
as the same presents a defence for the hand in the form of a plate, loop or
equivalent.
Figure 10 represents, partly in elevation, and partly in section, a further form of
pump or pneumatic tyre inflator provided with improvements made according to a
further form of my invention.
The said view represents the piston rod, which is terminated by a hand grip or
strap or by a hand or ground abutment slightly withdrawn, with the guard taken
away from the cap of the barrel wherethrough the hollow piston rod passes.
It will be seen that the junction of the said hollow piston rod end with the nozzle
is made by the shield and the grip or abutment and from this it can be seen that
the said instrument can be either held by the hand or the abutment placed upon the
ground and the foot of a person placed within it stirrup-wise whilst the barrel
is reciprocated by the hand."
Figure 11 represents the pump in use, with the grip placed upon the ground and
held by the foot during the pumping.
a is the barrel of the pump having a closed outer end and an inner end a¹, closed
by a cap wherethrough the hollow piston rod b, passes, which rod is terminated by
a pummel c³, carrying a grip or hand or ground abutment c, and having a shield c¹,
through which the end 6, of the hollow piston rod b, passes and terminates at the
.side at 63, to which the flexible connection d, is secured.
It will be seen that by reciprocating the barrel a, over the piston which is at the
inner end of the piston rod b, air is forced up the hollow of the rod, through
the side extension 63, and flexible connection d, and past the valve in the
ordinary way.
When pumps are made of a large size for use in depôts, factories and the like,
the holding of the same in the hand becomes tiring, hence the grips may be
conveniently rested upon the ground as the support.
Figure 12 represents a still further form of pump with combined hand abutment
or grip and guard constructed according to a still further form of this part of my
invention.
Figure 13 represents a front end elevation of the fore part of the pump.
Figure 14 represents a cross section of the combined abutment or grip and guard
upon the dotted lines CD Figure 13.
a is the barrel of the pump, 6 the hollow piston rod, surmounted at its fore end by
a combined rest abutment, grip and shield c, made fast to the said end, and adapted
to rest within the palm of the hand, whilst the nozzle part of the piston rod and the
flexible connection (not shown) passes between two of the fingers.

page_text: Figure 15 represents a pump having the finger bows made according to my
invention.
Figure 16 represents a transverse section of the said bows upon the dotted
lines E F Figure 15.
Figure 17 represents in plan and edge view the blank from which the bows.
are made.
Figure 18 represents the blank Figure 17 pierced and Figure 19 represents the
same turned up into a loop or bow.
Figure 20 represents an affixing collar for uniting the terminal ends of the bow
to themselves and to the piston rod end.
a is the barrel, & is the piston rod and c is a sheet metal finger bow, bent up into
the shape as represented in Figure 17, and having a screwed hole c', at its middle
which takes upon the screwed end 63, of the piston rod b, whilst the front terminal
ends c², are united together by the ears c, of a collar c³, taking and being clenched
over the solid parts c³, of the said end c², and with the ring part taking over the
contracted end 62, and taking a bearing against the shoulder 63, of the piston rod
end b.
Figure 21 represents in longitudinal section the metallic tip end of the flexible.
connection of an air pump.
Figure 22 represents a transverse section of the same upon the dotted lines G H.
Figure 21.
Figure 23 represents the box cap separately.
Figure 24 is a section of the seating of vulcanized fibre separately and Figure 25.
is a section of the bush.
is the body of the box cap having fitted within the hollow interior f¹, of it, a
seating g, having a cut-out central opening g', whilst tightly fitted within the said
hollow interior forward of the seating is a bush i, screwed within its interior to take
the nozzle end, of the valve stalk j.
fis the tail end of the cap upon which the flexible connection is secured.
Figure 26 represents in vertical section, a pump clip or pump clip carrying means.
constructed and arranged according to one form of my invention.
Figure 27 represents a back elevation of the same showing the pump connected
to the tubular framing member of a machine.
Figure 28 represents a like section as Figure 26 but with the movable part of
the two-part clip opened.
Figure 29 represents a front elevation of the said clip Figure 26.
Figure 30 shows a safety bicycle having a pump carrying clip carried by the top.
tubular member of the framing.
k¹ are bearing brackets, fixedly secured at suitable distances apart to the tubular
framing member k, and with sides k³, provided with concaved seatings k³, upon which
the pump a, is drawn through the medium of a coiled spring m, encircling the
stems n', o, of the parts n and o, of the two-part clip p. The part n, has a hooked
termination n², covered by a rubber tube n³, and its inner terminal end is formed
into a thumb piece n', whilst the other part o, which may also be rubber covered or
faced, has a like hooked end o², and a fixed thumb piece o*, so that by pressing the
thumb piece n', the coiled spring m, located between the said branches or thumb.
pieces o³, n³, is compressed and the distance between the impingement faces of the
hooked ends n², o³, is increased thus admitting of the introduction and clipping of
the pump a, to be carried upon the cross seatings k².
Figure 31 represents a further form of a pump clip constructed according to my
invention and Figure 32 is a cross section of the same.
The said clip consists of a band of sheet metal fashioned into dual clipping
parts, one for clipping and embracing the member of a machine and the other for
clipping and embracing the barrel of a pump to be carried.
Thus, p is a double clip, made from a strip or length of thin sheet metal formed.
nto embracing clips n², o³, respectively having yielding mouth entrances n³, o³, and.
turned back terminal ends n¹, o*.

page_text: The resilient chip o, may take upon the framing member k, which the chip ny
may embrace and carry the pump a, or vice versa.
In air pumps where the piston rod is reciprocated and the barrel held stationary,
the grips or hand abutments may be carried by the barrel or casing instead of by
the piston 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. In pneumatic tyre inflators or air pumps, providing the same with ring or
loop-shaped grips or hand abutments substantially as described and set forth in
Figures 1 to 11.
Secondly. In pneumatic tyre inflators or air pumps, providing the same with
obliquèly directed ring or loop-shaped hand grips, straps or abutments, carried by
the fore or connection end of the piston rod, substantially as described and set
forth in Figures 1 to 11.
Thirdly. In pneumatic tyre inflators or air pumps, providing the fore or
connection end parts of the piston rods, adjacent to the hand grips or abutments
with shields or guards, substantially as and for the purpose as described and set
forth in Figures 4, 5, 6, 7, 8 and 9.
Fourthly. In pneumatic tyre inflators or air pumps, the combination with the
fore or connection end of a piston rod, of a combined guard and grip or hand
abutment, substantially as and for the purpose as described and set forth in
Figures 4 to 9.
Fifthly. In pneumatic tyre inflators or air pumps, providing the outlet end of the
hollow piston rod at its junction with the loop with a side outlet or punimel to
which the flexible connection is fitted or secured whereby the instrument admits of
being supported either by the hand or upon the ground substantially as described
and set forth in Figures 10 and 11.
Sixthly. In pneumatic tyre inflators as described and set forth in Figures 10
and 11, the general construction arrangement and combination of the parts, with or
without the shield c'.
Seventhly. In pneumatic tyle inflators or air pumps providing the connection
end of the piston rod with a combined shield and grip or band abutment,
substantially as and for the purpose as described and set forth in Figures 12, 13
and 14.
Eighthly. In the manufacture of the finger bows of air pumps or tyre inflators,
making the same from sheet metal in the way and by the means substantially as
described and set forth in Figures 15 to 20.
Ninthly. In pneumatic tyre inflators or air pumps, tying the end of the flexible
connection to the barrel of the pump by a chain or equivalent having a swivelling
connection at one end, substantially as described and set forth in Figure 1..
Tenthly. In the metallic tip ends of the flexible connections of air pumps or
inflators, providing or fitting the same with a yielding seating with the middle
piercing made by a cutting-out or punching tool, and with the said scating kept in
position by an inserted and fitted bush or equivalent, substantially as described and
set forth in Figures 21 to 25.
Eleventhly. In the metallic tip end parts of flexible connections, the general
construction, arrangement and fitting of the parts, substantially as described and
set forth in Figures 21 to 25.
Twelfthly. A two-part connection or carrying clip for pneumatic tyre inflators
or air pumps, consisting, of a fixed part and a movable part, the fixed part
carrying rest brackets and having a fixed clip and the movable part being free and
with the said parts drawn together by a spring, whereby a clip is attached to a
frame member of a machine and the inflator to the attachment clip, substantially
as described and set forth in Figures 26, 27, 28, 29 and 30.
Thirteenthly. A dual connection or carrying clip for pneumatic tyre inflators or

page_text: air pumps, made from a strip or length of sheet metal fashioned into the shape of
a W or an M, substantially as described and set forth in Figures 31 and 32.
Dated this 4th day of April 1894.
ROBERT FREDERICK HALL,
By Henry Skerrett,
6, Livery Street, Birmingham, Agent for Applicant..