Improvements in Tools for Repairing Pneumatic Tires for the Wheels of Velocipedes and other Vehicles.
Year: 1895

page_text: Date of Application, 22nd July, 1895-Accepted, 24th Aug., 1395
COMPLETE SPECIFICATION.
Improvements in Tools for Repairing Pneumatic Tires for the
Wheels of Velocipedes and other Vehicles.
1, FREDERICK MYERS, Manufacturer, of 47 Centre Street, New York, United
States of America, 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 that class of tire-repairing tools comprising first, an
expansible tube or guide adapted to be inserted in a hole or puncture in a pneumatic
tire for the purpose of temporarily enlarging said puncture; secondly, means
whereby the tube may be expanded and contracted after its insertion in the
puncture, and thirdly, a plug-carrying plunger which is movable in the tube and
is adapted to carry a headed plug through the temporarily enlarged perforation or
puncture in the tire and to leave the said plug in the puncture, the walls of the
hole contracting sufficiently to engage the shank of the plug after the detachment
of the tube, so that as the tube and plunger are withdrawn the contracting arms of
the tube clutch the shank of the plug and draw the head of the same snugly against
the inner wall of the tire, completely healing the puncture.
The invention has for its object to provide a simple and effective tool of this
class, and to this end it consists in the improvements which I will now proceed to
describe and claim.
Of the accompanying drawings, forming part of this Specification,
Figure 1 represents a side view of my improved tool, the tube being closed and
the plunger retracted.
Figure 2 represents a section on line 2, 2 of Figure 1.
Figure 3 represents a side view showing the tube expanded and the plunger
projected.
Figure 4 represents a side view showing the tube expanded and the plunger
retracted.
Figures 5, 6, 7 and 8 represent side views showing different steps in the operation
of the device.
Figures 9 and 10 represent perspective views of certain parts detached.
The same letters of reference indicate the same parts in all the figures.
In the drawings:
a represents a circular plate or head, which is provided with a central orifice or
guide a¹ (Figure 10) for the plunger hereinafter described, and with a series of
orifices or guides a² for the tapering or wedge-shaped tube-expanding pins herein-
after described. On the head a are formed ears a³ to which are pivotally connected
at at the sections b, b, b which comprise the expansible penetrating tube or guide.
Said sections are formed so that when closed together as shown in Figures 1, 2
and 5, they collectively form a tube which is contracted at one end, the said
sections being tapered at that end and formed to readily penetrate a perforation or
The sections 6 are provided with external
puncture in a pneumatic tire c.
projections which collectively form a sectional disc surrounded by a contracting
band or spring d, which may be an ordinary rubber band, sprung into a groove in
the external surfaces of said projection, said band serving to normally hold the
e represents a plug-carrying plunger
sections together and thus contract the tube.
fitted to slide in the central guide a' of the head a and provided at its lower end
with a socket.to receive a headed plug of rubber or other suitable material, said
plug being designated by the reference letter f. e' is a suitable handle or head at
"

page_text: the outer end of the plunger e. represents a collar having a central orifice gl
which surrounds the plunger e, the plunger having a free sliding movement in said
collar. To the collar g are attached a series of downwardly projecting pins g² the
lower portions of which are tapered or wedge-shaped, as shown at g³. Said pins
pass through the guides a² in the head a and slide freely therein, their lower
portions being interposed between the sectional projections on the tube-sections b,
as shown in Figure 2..
When the collar g is raised as shown in Figures 1 and 5, the tapered ends of
the sections b, b, are drawn toward each other by reason of the fact that the
smaller portions of the tapering pins 92 are then interposed between the projections b¹
on the tube-sections. A downward movement of the collar and its pins 92 will
cause the tapering portions of the said pins to separate the projections b¹ and the
tube-sections b, b, b, thus expanding the tube as shown in Figures 3, 4 and 6. By
preference, provide near the lower end of the tube-sections b, b, b, enlarge-
ments 62, 12 which form substantially, when the tapered ends of the sections h, b, b,
are contracted, an annular raised bead around the point of the instrument, the
purpose of the said enlargements 62, 62 being to afford a means to prevent the tool
from slipping away from the walls of the puncture in the tire when the tube-
sections b, b, b, are being expanded.
The operation is as follows:-
The plug which has an enlarged head f' is first inserted into the socket of the
plunger e, the plug being inserted shank first as illustrated. The contracted
end of the sectional tube is then inserted through the puncture in the tire, the lower
ends of the tube-sections are then expanded and the plungere forced down as shown
in Figure 6, thus inserting the plug within the tire. The collar and the pins 9²
are then raised sufficiently to permit the contraction of the tube-sections against
the plunger, the plunger is then withdrawn and the ends of the tube-sections engage
the shank of the plug f, as shown in Figure 7, the ends of the tube-sections resting
against the inner side of the plug-head f¹ preventing the said plug from being
withdrawn when the plunger e is withdrawn. By withdrawing the instrument from
the tire, the inner surface of the plug f may be drawn snugly into contact with
the inner surface of the tire, the inner face of the plug-head resting closely
against the inner surface of the tire, while the surface of the shank portion of the
plug is firmly engaged by the contracting walls of the perforation, as shown in
Figure 8. The tube-sections may then be expanded and the instrument entirely
removed from contact with the plug. That portion of the shank of the plug which
remains above the outer surface of the tire may be cut off so as to afford a smooth
outer surface. The plug may be and by preference is coated with a suitable
cement so that it will adhere firmly to the tire and more completely heal and
render air-tight the said puncture.
such
It will he seen that the above-described device is simple in construction and
efficient in operation. The hinged or pivoted tube-sections being closed by a
spring which can readily be renewed, are not liable to lose their effectiveness, and
are easily kept in operative condition, it being an easy matter to remove a worn
out spring or tube-section and substitute others therefor. The construction
that it is not necessary to separate the parts of the device, they being always
assembled in operative relations to each other so that there is no liability of their
being mislaid. It is obvious, however, that, if desired, the plug-carrying plunger e
may be detachable from the rest of the instrument.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is :-
1st. A tire-repairing tool comprising a head having a central orifice, a series of
separable jaws pivoted to said head and constituting a longitudinally divided
expansible tube or guide having a penetrating tapered end, and means for
expanding and contracting said tube or guide, substantially as described.

page_text: 2nd. A tire-repairing tool comprising a head having a central orifice, a series of
separable jaws loosely attached to said head and constituting a longitudinally
divided expansible tube or guide having a penetrating tapered end, said jaws being
provided with external sectional projections, a contracting band or spring applied
to said projections to normally contract the tube, and means for expanding said
tube, substantially as described.
3rd. A tire-repairing tool comprising a head having a central orifice, a series of
separable jaws projecting downwardly from said head and constituting a longi-
tudinally divided expansible tube or guide having a penetrating tapered end, said
jaws being provided with external sectional projections, a contracting band or
spring applied to said projections to normally contract the tube, and a plug-holding
plunger movable within said tube or guide, and means for expanding said tube.
4th. A tire-repairing tool comprising a head having a central orifice and a series
of guides, a series of separable jaws pivoted to the head and constituting a longi-
tudinally divided expansible tube or guide having a penetrating tapered end, said
jaws having external sectional projections, a contracting band applied to said
projections to normally contract said tube or guide, a collar having a series of
tapered or wedge-shaped pins fitted to slide in the guides and interposed between the
projections on the jaws, substantially as and for the purpose specified.
5th. A tire-repairing tool comprising a head having a central orifice, a series of
jaws adapted to be expanded and contracted, said jaws being tapered so as to form
a penetrating point and provided with enlargements toward their pointed ends to
form a substantially annular tire-engaging bead.
6th. A tire-repairing tool comprising a head having a central orifice, a series of
separable jaws pivoted to said head constituting a longitudinally divided expansible
tube or guide, said jaws being provided near their lower ends with enlargements
whereby the tool may be engaged with a tire during the process of repairing, and
means for expanding and contracting the tube or guide, and a plug-holding plunger
movable within said tube or guide.
Dated 1 day
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.