A New or Improved Combination Tool.
Year: 1892

page_text: Date of Application, 29th June, 1892
Complete Specification Left, 29th Mar., 1893-Accepted, 29th Apr., 1893
PROVISIONAL SPECIFICATION.
A New or Improved Combination Tool.
I, JOHN MCCOOL, of 27 King George Street, Greenwich, in the County of
Kent, Engineer, do hereby declare the nature of the said invention to be as
follows:-
This invention relates to a new or improved combination tool adapted to be used
as a cramp for drawing articles or parts of articles together or towards one another
and as a jack or thrusting appliance to push articles or parts of articles apart of
away from one another.
The said tool consists of a right and left handed screw provided at or about the
centre of its length with a boss by means of which it can be turned round, the said
boss being preferably square, or hexagonal, for example, to receive an ordinary
screw key or spanner, or the said boss may be provided with a hole or holes into
which the point or end of a lever can be inserted for the purpose of turning the
screw, or again the said screw may be provided with a ratchet wheel and pawl
handle after the manner of a ratchet brace. The two ends of the screw take into
socket pieces which are tapped to suit the said ends of the screw and these sockets
are each provided with a tee head. When the aforesaid right and left handed
screw is turned and the two tee headed sockets prevented from turning, the latter
are either forced further apart or drawn closer together according to the direction
in which the screw is turned, and by applying the outer surfaces of the tee heads.
or the inner surfaces of the arms thereof to articles or parts of articles to be moved,
the same may be thrust further apart or drawn towards each other as may be
required by turning the aforesaid right and left handed screw in one direction or
the other. The aforesaid surfaces of the tee heads that come in contact with the
articles or parts of articles to be moved are preferably made of steel and roughened
to secure a better hold or to prevent slipping.
The tee heads may be fitted with shackles to facilitate the tool being used as a
means of hauling by chains or ropes, and they may be fitted with removable or
interchangeable dies or parts whereby the tool may be used as a press to force out
bolts or rivets that may have become rusted in or otherwise tightly fixed in their
holes, as a drill brace centre, as a drift for expanding the ends of tubes in the tube
plates of boilers or other similar vessels or apparatus, as a press for forcing ferrules
into such tube ends, or as a tool for extracting ferrules from such tubes or bushes
from their seats and so forth. When used for the latter purpose the interchange-
able die or part is preferably formed with a pivotted tee piece which can be turned
at right angles to the said die or part after the latter has been inserted in place so
as to take a bearing behind the ferrule or bush to be extracted, the other end of the
tool being held by a suitable cross bar or frame forming the point of resistance for
the right and left handed screw to pull against.
Dated this 29th day of June 1892.

page_text: COMPLETE SPECIFICATION.
A New or Improved Combination Tool.
I, JOHN MCCOOL, of 27 King George Street, Greenwich, in the County of
Kent, Engineer, do hereby declare the nature of the said invention, and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement, reference being had to be accompanying sheet
of drawings, and to the letters and figures marked thereon, that is to say :-
This invention relates to a new or improved combination tool adapted to be used
as a cramp for drawing articles, or parts of articles together or towards one another,
and as a jack or thrusting appliance to push articles or parts of articles apart or
away from one another.
The tool consists, as shown in Figures 1 and 2 of the drawings, of a right and
left handed screw A provided at or about the centre of its length with a boss B by
means of which it can be turned round, the said boss being preferably square or
hexagonal to receive an ordinary screw key or spanner, or the said boss may be
provided with a hole or holes Cinto which the point or end of a lever can be
inserted for the purpose of turning the screw; or again, the said screw A may
be provided with a ratchet wheel D and pawl handle E after the manner of a
ratchet brace as shown in Figure 2. The two ends of the screw A take into nuts or
socket pieces F which are tapped to suit the said ends of the screw and these
sockets are each preferably provided with a tee head G. When the aforesaid
right and left handed screw A is turned and the two nuts or sockets F prevented
from turning, as for example by means of a screw key applied to the square or
hexagonal part F*, the said nuts or sockets F are either forced further apart or
drawn closer together according to the direction in which the screw is turned, and
by applying the outer surfaces of the tee-heads, or the inner surfaces of the arms
thereof to articles, or parts of articles, to be moved, the same may be thrust further
apart or drawn towards each other as may be required, by turning the screw A in
one direction or the other. The aforesaid surfaces of the heads, that come in con-
tact with the articles or parts of articles to be moved, are preferably made of steel
and roughened to prevent slipping as shown at Figure 3 for example which is a
view of the outer surface of one of the tee-heads G, and at Figure 4 which is a view
showing the inner surfaces of the arms of one of the said tee-heads.
The tee-heads may be fitted with shackles H, see Figures 5 and 6, to facilitate
the tool being used as a means of hauling by chains or ropes, and the nuts or
sockets may be fitted with removeable or interchangeable dies or parts for example.
Figure 7 shows a die the stem I of which may be inserted in the hole F¹ in one
of the nuts or sockets F and secured therein by a pin passing through the hole F
in the nut and through the hole I' in the stem I. The front part I' of this die
may be used to press or force out bolts or rivets that may have become rusted in or
otherwise tightly fixed in their holes, or it may be used as a drill brace centre, the
hole in the end serving to receive the conical end of such centre by which means
the tool becomes a drill brace packer. The shoulder 1 of the same die may be
used for forcing ferrules into the ends of tubes in the tube plates of boilers or other
similar vessels or apparatus.
Figure 8 shows a die the stem I of which is adapted to fit into and be secured
in the hole F¹ in one of the nuts or sockets F while the front part I is adapted to
be used as a conical drift for expanding the ends of tubes in the tube plates of
boilers and so forth.
In using the tool with the dies shown in Figures 7 and 8, the tee-head G at the
end opposite to that in which the die is inserted is made to take a bearing against
a sufficiently firm point of resistance and the screw A is turned in such a direction
as will force the die forward against the part to be operated upon.
In Figures 1 and 2 is shown in place in one of the nuts or sockets F a removable

page_text: device K for extracting ferrules from the ends of boiler tubes; or bushes from their
seats, or for effecting any such like operation. The stem I of this device enters
the hole in the nut or socket F and is secured therein by the pin L. The part K
is slotted at its outer end as shown in Figure 2 and has pivotted in the slot a tee
piece M which can be turned at right angles to the part K, after the latter has been
inserted into the ferrule, so that its two arms take a bearing behind the ferrule or
bush to be extracted as shown in dotted lines in Figure 1. In this case the other
end of the tool may be held by any suitable means so as to form the point of
resistance for the screw A to pull against, for example the tee-head at the said
other end may be anchored back by means of a chain passed through shackles H
applied to the arms of such tee-head as shown in Figures 5 and 6.
The tool, suitably modified, may be advantageously employed as a strut for
holding-up ground during excavating or mining operations, and for this and other
similar purposes tubular extension pieces, such as that shown in Figure 9, may be
employed to adapt it to suit the width of the excavation, the stem I of the said
extension piece fitting into the nut or socket F as explained in reference to the
other removable or interchangeable parts and, when necessary, chisel or wedge
shaped pieces such as shown in Figure 10 may be mounted in the nuts or sockets F
or on the ends of the aforesaid extension pieces. These chisel or wedge shaped
pieces cut into the supporting timbers across the grain of the latter and prevent
the tool from slipping.
It will be understood that the tee-heads give a large thrusting surface and that
the arms of the said tee-heads form convenient parts wherewith to pull or cramp,
but it is obvious that the tee-head on either or both of the nuts or sockets F may
be dispensed with in cases where they are not required, and the various removeable
or interchangeable parts used with the nuts or sockets alone, the ends of such nuts
or sockets being shaped in any way best suited to the purpose for which the tool is
to be used.
Similar letters of reference relate to like parts in all the figures of the drawings.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I desire to have it under-
stood that I make no claim generally to the use of a right and left handed screw
with corresponding nuts for the purpose of pushing articles, or parts of articles
asunder, or for pulling, raising, or lowering, as I am aware that such a device has
been used for many years for such purposes but what I do claim is:-
First The new or improved combination tool consisting of a right and left.
handed screw, corresponding nuts or sockets F and movable or interchangeable
parts for effecting various operations, combined and arranged substantially as
hereinbefore described, and illustrated in the drawings.
Second-The combination with a right and left handed screw A of nuts or
sockets F having tee heads G for the purpose of pushing, pulling, or cramping,
substantially as hereinbefore described, and illustrated in the drawings.
J. MCCOOL,
Per W. H. Beck,
115, Cannon Street, London, Agent.
J. MCCOOL,
Per W. H. Beck,
115, Cannon Street, London, Agent.