An Apparatus for Fixing Inside Tubes, or Apertures, a Means of Connection for an Outer Blanking Flange, or other Connection.
Year: 1897

page_text: Date of Application, 12th Feb., 1897
Complete Specification Left, 25th Oct., 1897-Accepted, 15th Jan., 1898
PROVISIONAL SPECIFICATION.
An Apparatus for Fixing Inside Tubes, or Apertures, a Means of
Connection for an Outer Blanking Flange, or other Connection.
ELIJAH JAMES HEARNAH, of 7 Belgrave Road, St. John's Wood, in the County
of Middlesex, Coppersmith, and GEORGE ROBERT BALE, of 36 Eyot Gardens,
Hammersmith, in the County of Middlesex, Engineer, do hereby declare the nature
of this invention to be as follows:-
This invention consists of a central screwed bolt, which may be solid or hollow,
held securely in position inside a tube or aperture by means of two or more
gripping pieces connected by pin-joints or other suitable fastening, at one end, to
the central bolt, and at points near their other ends by means of links connected
to a collar running free upon the central bolt, a nut is screwed on to the central
bolt above this collar which on being turned drives the collar along the bolt, thus
forcing the gripping pieces outward and securing a hold upon the sides of the tube
or aperture. A suitable blanking flange or other connection may now be slipped
over this central bolt and held securely in position by means of a second nut.
the accompanying drawing A is the central bolt, held in position by the gripping
pieces BB formed with suitable serated outer surfaces, these gripping pieces being
forced against the inside of the tube by screwing on the bolt A, the nut C, which
drives the collar D) along the bolt A, transmitting a force through the links EE
and the bolt A to the gripping pieces BB which causes the said gripping pieces
to bear, and take a hold upon the inner surface of the tube or aperture.
In
In the drawing a cover F is shewn held in position over the end of the tube by.
means of the second nut G screwed on to the central bolt A; and it will be seen
that on screwing this nut against the cover a pressure-tight joint may be made
at H, and at the same time the hold on the tube may be increased.
Dated this 30th day of January 1897.
ELIJAH JAMES HEARNAH.
GEO. R. BALE.
An Apparatus for Fixing Inside Tubes, or Apertures, a Means of
Connection for an Outer Blanking Flange, or other Connection.
ELIJAH JAMES HEARNAH, of 7 Belgrave Road, St. John's Wood, in the County
of Middlesex, Coppersmith, and GEORGE ROBERT BALE, of 36 Eyot Gardens,
Hammersmith, in the County of Middlesex, Engineer, do hereby declare the nature
Price 811

page_text: 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:
-
According to this invention a bolt which may be solid or hollow, is held securely
in position inside a tube or aperture by means of two or more gripping or holding
pieces each connected at one end by a pin joint or other suitable fastening to the
bolt and at a point near the other end by means of a link to a collar running freely
upon the bolt on which a nut is screwed above the collar, which on being turned
in one direction will drive the collar along the bolt thus forcing the gripping or
holding pieces outward and securing a hold upon the tube or aperture. A suitable
blanking flange or other connection may now be slipped over the bolt and held
securely in position by means of a second nut. In the drawing accompanying the
provisional specification, A, is the bolt which is arranged centrally and is held in
position within a tube as shown by the gripping or holding pieces B, B, each
formed with a suitable serrated outer surface, these gripping or holding pieces
being forced against the inside of the tube by screwing on the bolt A, the nut C,
which drives the collar D, along the bolt A, transmitting a force through the
Links E, E, and the bolt A to the gripping or holding pieces B, B, which causes
them to bear and take a hold upon the inner surfaces of the tube.
In the drawing a cover F is shewn held in position over the end of the tube by
means of the second nut G screwed on to the central bolt A, and it will be seen that
by screwing this nut against the cover a pressure-tight joint may be made at H,
and at the same time the hold on the tube may be increased.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:
(1). In an apparatus for fixing inside tubes or apertures a means of connection
for an outer blanking flange or other connection, the combination of a bolt two
or more gripping or holding pieces and a collar free to move along the bolt and so
connected to the gripping or holding pieces that when the collar is moved along
the bolt in one direction, it will cause the gripping or holding pieces to move out-
ward and to press against and engage with or take a hold upon the inner surface
of the tube or aperture within which they are located and thereby to secure the
bolt to the tube or to the body in which the aperture is found.
(2). The apparatus constructed, arranged and operating substantially as herein
above described and illustrated for the purposes mentioned.
Dated this 25th day of October 1897.
ELIJAH JAMES HEARNAH,
GEO. R. BALE.