provements in Devices for Closing Punotures in Pasumatio Tyres, Hose, or Tubing.
Year: 1899

page_text: Date of Application, 31st Aug., 1899
Complete Specification Left, 25th May 1900-Accepted, 7th July, 1900
PROVISIONAL SPECIFICATION
Improvements in Devices for Closing Punotures in Pasumatio Tyres,
Hose, or Tubing.
I, ROBERT WILLIAM SAMPSON, of No 259, St John Street, in the City of Quebec,
Province of Quebec, Dominion of Canada, Machinist, do hereby declare the nature
of this invention to be as follows
-
This invention relates to devices for effectually closing punctures and holes in
pneumatic tyres, hose. or tubing, and it has foi its object the production of a
simple, strong, and efficient puncture-closing device, adapted to be readily and
accurately applied,- my invention being particularly adapted for closing holes
and punctures in pneumatic wheel tyres
Rubber and other flexible plugs have been devised for closing punctures with
the aid of cement, but such plugs are difficult to apply, and, owing to the flexibility
of the rubber plugs, they fiequently are so bent or folded, us to render it piacti-
cally impossible to, at times, effect a perfect closure So, too, conical-headed
plugs have been devised, provided with a threaded shank to receive a cap, the
material of the trie or tubing being held between the base of the cone and the
cap, and flat caps having threaded shanks have also been devised Such devices,
however, are defective, for the reason that the first mentioned device tends to
greatly enlarge the puncture, and the yielding material of the tubing will not fit
tightly around the base of the plug, so that a tight closure cannot be effected,
while the second mentioned device is defective, because a cap is required to be
sunk into the outer cover of the trre, thus increasing the size of the hole, and,
besides, embodying a complicated construction
By my present invention, I obviate the objectionable features of the flexible
or metallic plugs referred to, and, without the use of cement, I am enabled to
effect a tight and effective closure of a hole or puncture without increasing the
size of the hole
Specifically speaking, my novel puncture-closing device comprises, essentially,
a head (preferably made of hiass or other rigid material) a threaded shank to
which the head 18 pivotally connected by a ball and socket joint, and a detachable
cap or nut adapted to take over the shank, and bear upon the extenor of the
tyre or other tube, while the outer end of the shank is off-set, to form a tem-
porary handle, and the cap or nut has the edge of its outer face rounded, and its
inner face provided with a serrated flange tending to lock it in place when
screwed down into the rubber of the tyre
The head is of oval form, and provided with a socket to receive the ball on the
end of the shank, such socket being usually formed by a depression from the
inside of the head outward, and an inside partial covering stup for such depres-
sion, having a slot narrower than the ball, but wide enough to accommodate the
shank, and extending from said depression
The slot in the head for accommodating the shank 18 the main feature of my
invention, as it enables the head to he turned, to lie agast the shank, thus

page_text: allowing the head to be passed endwise through the puncture, without enlarg-
ing it
1000
NEWTON & SON,
Agents for the Applicant
Improvements in Devices for Closing Punctures in Pneumatio Tyres,
Hose, or Tubing.
I, ROBERT WILLIAM SAMPSON, of No 259. St John Street, in the City of Quebec,
Province of Quebec, Dominion of Canada, Machinist, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement
This invention relates to devices for effectually closing punctures and holes in
pneumatic tyres, hose, or tubing, and it has for its object the production of a
simple. strong, and efficient puncture-closing device adapted to be readily and
accurately applied,—
-my invention being particularly adapted for closing holes
and punctures in pneumatic vehicle-tvies
Rubber and other flexible plugs have been devised for closing punctures with
the aid of cement, but such plugs are difficult to apply, and, owing to their
flexibility, ther frequently are so bent or folded аз to lende it practi-
cally impossible to at times effect a perfect closure So, too, conical-headed
plugs have been devised, provided with a threaded shank to receive a cap, the
material of the tyre or tubing being held between the base of the cone and the
cap, and flat caps having threaded shanks have also been devised Such devices,
however are defective, for the reason that the first-mentioned tends to
greatly enlarge the puncture. and the yielding material of the tubing will not fit
tightly around the base of the plug, so that a tight closure cannot be effected,
while the second mentioned device is defective, because a cap is required to be
sunk into the outer cover of the tyre, thus increasing the size of the hole, and.
besides embodying a complicated construction By my present invention. I
obviate the objectionable features of the flexible or metallic plugs referred to,
and, without the use of cement, I am enabled to effect a tight and effective
closure of a hole or puncture, without increasing the size of the hole
For full comprehension, however, of my invention, reference must be had to
the accompanying diawings, forming a part of this specification, wherein the
same letters indicate corresponding parts, and in which:
:-
Figure 1 represents, in cross section, and enlarged, a portion of tubing with my
novel puncture-closer applied thereto
Figure 2 18 a like view, showing the manner of inserting the device into the
puncture
Fig 3 is an enlarged side elevation, partly in section, of the plug, and
Fig 4 is a plan view of the head of my closing device, with the shank shown
in section
My novel puncture-closing device comprises, essentially, a head n, preferably
made of brass or other rigid material, a threaded shank h, to which the head is
pivotally connected by a ball-and-socket joint, and a detachable cap or nut c,
adapted to take over the shank b, and to bear upon the exterior of the tyre or
other tube, while the outer end of the shauk is off-set, to form a temporary handle
The cap or nute has the edge of its outer face rounded, and its inner face pro-

page_text: vided with a serrated flange f, tending to lock it in place, when screwed down
into the rubber of the tyre
The head a 18 of oval form, and provided with a socket to receive the ball on
the end of the shank b, such socket being usually formed by a depression from
the inside of the head outward, and an inside partial covering-strip h for such
depression, having a slot, nanower than the ball e, but wide enough to accom-
modate the shank
In order to apply the closing device to a punctured tyre or other tube, T, the
head a, having been turned up against the shank, is forced edgewise through the
hole or puncture into the interior of the tube When the head is entirely
within it, it can be readily turned on its pivot into position at right angles to
the shank, and, by means of the shank (after the nut has been screwed down
into contact with the tyre), drawn up close against the inner surface of the tube,
as in Fig 1, with the shank in the hole or puncture. When the head a has been
drawn tightly up against the inside surface of the tyre, and the latter clamped
firmly between the head and out, that portion of the shank projecting out beyond
the nut is filed off, leaving the device as shown in Fig 1
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to he performed, I declare that what
I claim 18.-
1 A puncture-closer for tubing, compusing a shank, a head, a universal
joint for connecting said head to said shank: sand head having a slot extending
from said universal joint, and of sufficient width to accommodate said shank, and
a co-operating retaining cap, substantially as described
2 A puncture-closer for tubing, consisting of the threaded shank b, with its
upper end off-set to form a temporary handle, and having a ball, e, formed upon
its lower end, the head a, formed with a socket to receive and loosely retain said
ball, and the slot 3, narrower than the ball, e, and of sufficient width to accom-
modate the shank b, and the co-operating retaining cap with seriated under sui-
face, substantially as described
Dated thus 25th day of May 1900.