cutters
Year: 1895

page_text: Date of Application, 3rd Sept., 1895
Complete Specification Left, 3rd June, 1896-Accepted, 25th July, 1896
cual of cutters.
The handle is formed with a hole in the lower end of it to take the shank of
guide box and to afford a means of turning the handle without any twisting of the
said guide box.
Upon the outside of lower end of handle a thread is formed to take the nut,
which latter is arranged with lugs, hooks or other suitable means of holding the
ends of cutter chain.
The guide box is constructed in such a manner as to form a guide to the sides
and backs of links of chain, for the purpose of retaining it within bounds and for
assisting the cut and drawing the chain closer round the pipe to be operated upon
than would be the case, if it were allowed to strain directly from the nuts at its
natural tangential line to circumference of pipe under operation.
Under the guide box there may be either a cutter, or a roller or other suitable
means of reducing friction or assisting the cut.
:
The guide box has on its upper side a shank, which enters the before-mentioned
hole formed to receive it within the handle.
When it is desired to cut a pipe with this tool, the chain which may be already
attached to one side of the nut on handle is passed first thro' the guide box (if not
already through) round the pipe, thro' the other side of the guide box and then
attached to the opposite side of the nut, to that already connected to one end of
the chain.
It is in this manner put in working position, and by turning the handle in one
direction the nut is caused to recede from the pipe thus drawing up the ends of the
chain and causes pressure upon the cutting discs on the circumference of the pipe
the tool being then by means of the handle moved backwards & forwards thro'
any desired angle in the usual way. Further turning of the handle feeds the cut
as required.
Upon turning the handle in the opposite direction the nut is caused to approach
the pipe and the chain is thus slackened.
Of course in working upon short lengths of pipe the chain need not be detached
at all from nut, but may be slipped over the end of the tube.
It is obvious that a pipe or tube need not be absolutely circular, so long as there
are no sharp curves or angles upon its perimeter, to be cut.
Price 8d l
:

page_text: It is preferable to have a small cross bar in upper end of handle to facilitate its
turning by offering a better grip to the hand.
Dated this Third day of Ninth month One thousand eight hundred and
ninety-five.
3rd. A guide box and shank.
4th. A chain' of cutters.
The handle is formed with a hole in the lower end of it to take the shank of
guide box and to afford a means of turning the handle without twisting the said
guide box.
Upon the outside of the lower end of handle a thread is formed to take the nut,
which latter is arranged with lugs, hooks, or other suitable means of holding the
ends of cutter chain.
The guide box is constructed in such a manner as to form a guide to the sides,
and backs of links of chain, for the purpose of retaining it within bounds, and for
assisting the cut and drawing the chain closer round the pipe to be operated upon,
than would be the case if it were allowed to strain directly from the lugs, at its
natural tangential line, to circumference of pipe under operation.
Under the guide box there may be either a cutter, or a roller, or some other
suitable means of reducing friction, or assisting the cut.
The guide box has on its upper side a shank, which enters the before-mentioned
hole, formed to receive it, within the handle. This guide box may, if desired, have
its sides so formed, as to permit of a certain amount of upward and downward
adjustment, on the shank, either by means of serrations upon guide box sides,
and internal block, or slot and bolts, or internal and external screw contact, or
other suitable methods.
When it is desired to cut a pipe, with this tool, the chain A, which may be already
attached to one side of the nut B on handle F, is passed first through the guide
box C, (if not already through), round the pipe D, through the other side of the
guide box C, and then attached to the opposite side of the nut B, to that already
connected to one end of the chain A.
It is in this manner put in working position, and by turning the handle, in one
direction, the nut B, is caused to recede from the pipe D, thus drawing up the ends
of the chain A, and causing pressure, upon the cutting discs, on the circumference
of the pipe D; the tool being then by means of the handle F, moved backwards

page_text: and forwards, through any desired angle, in the usual way.
the handle F, feeds the cut as required.
Further turning of
Upon turning the handle F, in the opposite direction, the nut B, is caused to
approach the pipe D, and the chain A, is thus slackened.
Of course in working upon short lengths of pipe, the chain A, need not be
detached at all from the nut B, but may be slipped over the end of the tube under
operation.
It is obvious that a pipe or tube, need not be absolutely circular, so long as there
are no sharp curves, or angles, upon its perimeter to be cut.
It is preferable to have a small cross bar, in the upper end of handle, to facilitate
its turning, by offering a better grip to the hand.
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 handle having a screwed end.
2nd. A screwed nut to fit upon the same.
3rd. A guide box and shank, in combination with the above handle and nut, in
such a manner, that a turning motion of the handle, causes the nut to travel upon
the handle without the twisting of the guide box.
4th. A handle having a screwed end and screwed nut fitting the same, a guide
box and shank, assembled in combination with a chain of cutters, forming together
one tool substantially as specified and described above, and shown in the drawings
herewith.
Dated this First day of Sixth month One thousand eight hundred and
WILLIAM F. RICHMOND.