provements in Inflators for Pneumatic Tyres
Year: 1895

page_text: Date of Application, 4th May 1895
Complete Specification Left, 4tn Feb, 1896--Accepted, 14th Mar, 1896
PROVISIONAL SPECIFICATION
Improvements in Inflators for Pneumatic Tyres
I, HARRY LUCAS, of the Firm of Joseph Lucas & Son, of Tom Bowling Lamp
Works, Little King Street, in the City of Birmingham, Lamp Manufacturer
do hereby declare the nature of this invention to be is follows
This invention relates to improvements in inflators for compressing and forcing
air into pne imatic tyres of cvcles and other vehicles, my object being to construct
an inflator of few and simple parts that can be very readily attached to the tyre
valve when required, and when not in use the parts can be tele.coped, and thus
closed within a small compass
In the application of my invention I form the inflator or pump bariel or cylinder
preferably from a tube drawn from one dist or piece of brass or other metal, the
tube having one end closed or solid Within the tube I fit a plunger consi ting of
a metallic disc with the ordinary cup leather or other packing secured thereto
Through the dise I form an au passage having seating for the reception of a
delivery or check valve
A metal tube is screwed or otherwise attiched to the plunger, the tube being of
sufficient length to cause its upper or outer end to project through the cap or cover
screwed into or attached to the upper or open end of the bariel The projecting
end of the plunger tube has a sciew thread cut upon its exterior surface to enable
the handle to be attached when required for use
The inflator handle consists of a tube having one end closed by a disc rigidły
secured to the tube A hole or passage is formed through the closed end, the
outer side berg screwed to receive the end of the plunge tube herein before
described, whilst the inner side of the hole 1 screwed to receive the end of a small
metallic tube projecting beyond the open end of the handle tube The flexible
Connecting tube for attachment to the pneumatic tyre valve is secured by binding
we, or other convenient means to the outer or projecting end of the inner metallic
tube
When the handle is screwed on to the plunge tube and the flexible tube is
screwed or attached to the tyie valve, the inflator is in readiness for charging the
tyre with compressed air, such charging being effected by giving reciprocating
movement to the barrel, the plunger remaining stationary
The an is drawn into
the barrel preferably through the cap or cover, and is compressed on the under-side
of the plunger and forced passed the delivery valve through the plunger tube, the
uner handle tube and the flexible connecting tube, to the ty re
When the tyre is thus charged the flexible tube is detached from the tyre valve
and the handle unsciewed from the plunger tube The handle is then reversed and
by passing the attached connecting tube and the inner handle tube within the
plunger tube, the handle is fitted or telescoped over the barrel and the complete
inflator is thus closed up within a small compass
I sometimes dispense with the intermediate or inner handle tube as herein before
described and at ach the flexible connecting tube directly to the lower or closed
end of the handle Instead of securing the flexible tube to the handle as herein-
before described, I sometimes employ detachable connecting tube which when
not coupled up for service is inserted within the plunger tube
To protect the outer end of the handle tube I sometimes employ sliding cap'

page_text: having a hinged bayonet joint permitting it to be turned back upon the tube or
closed and secured over the end of the same as requn ed and I make other
modifications in the construction of my improved inflator without departing from
the essential features of my invention
D
CM 1005
MARKS & CLERK,
18 Southampton Buildings, London, WC, and
13 Temple Street, Birmingham, Agents for the Applicant
Improvements in Inflators for Pneumatic Tyres
I, HARRY LUCAS, of the Firm of Joseph Lucas & Son, of 1om Bowling Lamp
Works, Little King Stiect, in the City of Birmingham, Lamp Manufacturer,
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 relates to improvements in inflators for compre sing and forcing
a into the pneumatic tyics of cycles and other vehicles, my object being to
construct an inflator of low and simple parts tha can be very readily attached to
the tyre valve when required, and when not in use the parts can be telescoped, ind
thus closed within a smill compass
In the
referred to,
accompanying sheet of explanatory drawings to be heicinafter
Figure is an external view,
representing my improved inflator
and Figuic 2 an internal or sectional view,
In the application of my invention I form the inflator pump barrel or cylinder A
from a tube of brass or other metal and close one end by a cap such as B fitted
permanently to the burel Within the tube I fit a plunger consisting of a
metallic disc with the ordin uy cup leather or other picking secured thereto
Through the disc 1 form an au pissage having a seating f» the reception of a
delivery or check valve
A metal tube is screwed or otherwi e attached to the plunger, the tube being
of sufficient length to cause its upper or outer end to project through the cap or
cover D screwed into or attached to the upper or open end of the barrel The
projecting eid C¹ of the plunge tube has a sciew thread cut upon its exterior
surface to enable the handle Ì to be attached when requned for use in the manner
illustrated at Figure 1
The inflitui bandle L consists of a tube having a closed end L', with externally
and internally projecting bosses through which I form hole or air passage, the
outer side being screwed internally to receive the externally screwed end of the
plunger tube herein before described whilst the inner and smallci side of the hole is
internally screwed to icceive the externally screwed end of small metallic tube
The outer end F¹ of the tube F projects beyond the open end of the handle tube E
as shown at Figure 1, and the Hexible connecting tube G for attachment to the
pneumitic tyre valve is secured to such projecting end in any convenient manner
When the handle is screwed on to the plunger tube is shown at Figure 1, and
the flexible tube is screwed or attached to the tyie valve, the inflator is in readiness
for charging the tyre with compressed air such chuging be effected by giving
a reciprocating movement to the barrel, the plunger remaining stationary
air is drawn into the barrel preferably through a small hole in the cap or cover D,
and is compressed on the underside of the plunger, and forced past the delivery or
check valve in the plunger, through the plunger tube C, the inner tube F attached
The

page_text: to the handle, and the flexible connecting tube G, and thus into the tyre to be
inflated
When the tyre is sufficiently charged, the flexible tube is detached from the
tyre valve and the handle unscrewed from the plunger tube The handle is then
reversed and by passing the attached connecting tube and the inner handle tube
within the plunger tube, the handle is fitted or telescoped over the barrel as
shown at Figure 2, and the complete inflator is thus closed up within a small
compass
I sometimes dispense with the intermediate or inner handle tube F as berein-
before described, and attach the flexible connecting tube G directly to the lower
or closed end of the handle, or instead of securing it to the handle, I sometimes
employ a detachable connecting tube which when not coupled up for service is
inserted within the plunger tube I employ such a detachable flexible tube either
with or without the intermediate or inner handle tube F
To protect the end E' of the haudle tube when not in use, I screw into the same
the cap or plug H, which has a sciew thread cut or formed upon it similar to the
thread on the end C¹ of the plunger tube
Instead of a screw cap or plug to protect the outer end of the handle tube when
the inflator is not in service I sometimes employ a sliding cap having a hinged
bayonet joint permitting it to be turned back upon the tube, or closed and secured
over the end of the same as requued, and I make other modifications in the
construction of my improved mflator without departing from the essential features
of my invention
Having now particularly described and ascertained the nature of my said inven-
tion, and in what minnei the same is to be performed, I declare that what I
claim is
1 In inflators, the use of a reversible handle arranged for attachment to the
outer end of the plunger tube and for telescoping over the barrel or cylinder,
substantially as described
2 In inflators, the combination of a reversible handle having an open end for
telescoping over the barrel or cylinder and the opposite end screwed for attach-
ment to the outer end of the piston tube, with an intermediate metallic tube fitting
within the handle and having a projecting end for attachment of flexible
connecting tube substantially as herein before described and as illustrated in the
accompanying drawing>
3 Ihe gencial construction and arrangement of the improved inflator, sub-
stantially as described and illustrated
Deted this 3rd day of kabuo 1000
MARKS & CLERK,
18 Southampton Buildings, London, WC, and
13 Temple Street, Birmingham, Agen s for the Applicant
MARKS & CLERK,
18 Southampton Buildings, London, WC, and
13 Temple Street, Birmingham, Agen s for the Applicant