IMPROVED MACHINERY AND APPARATUS TO BE EMPLOYED IN THE MANU- FACTURE OF PLUMBERS' PIPE HOOKS
Year: 1876

page_text: LETTERS PATENT to Henry Sutcliffe and Wright Sutcliffe, both of Halifax,
in the County of York, Brassfounders and Finishers, for the Invention of
IMPROVED MACHINERY AND APPARATUS TO BE EMPLOYED IN THE MANU-
FACTURE OF PLUMBERS' PIPE HOOKS,"
"
PROVISIONAL SPECIFICATION left by the said Henry Sutcliffe and Wright
Sutcliffe at the Office of the Commissioners of Patents on the 5th August
1876.
HENRY SUTCLIFFE and WRIGHT SUTCLIFFE, both of Halifax, in the County of
York, Brassfounders and Finishers. "IMPROVED MACHINERY AND APPARATUS TO
BE EMPLOYED IN THE MANUFACTURE OF PLUMBERS' PIPE HOOKS."
Heretofore in the manufacture of plumbers' pipe hooks (which are employed for
the purpose of securing gas and water pipes and bell tubes in position) the practise
has been to forge these by hand.
The object of this Invention is the construction of improved machinery and
apparatus to be employed for producing such hooks mechanically and at greatly
reduced cost. We employ a pair of rollers (by preference of steel) mounted upon
standards and having driving gear. The perhipery of the bottom roller is cut or
recessed to the form and size of the pipe hook to be made, and there are as many of
such recesses in continuation as will embrace the whole circumference of the bottom
roller.
The iron or metal from which the pipe hooks are to be made will be supplied to
the rollers in a continuous form or strip, that is to say, for small hooks stout wire
may be used. The wire will be heated to a proper degree for compression by
means of a furnace or by gas blast, or the two combined, the rollers being prevented
from becoming heated by a flow of water therethrough.
To facilitate the cutting or recessing of the roller the latter may be made in two
parts, these being mounted upon a shaft or mandril and turned to the size required,
the form or outline of the pipe hook recess being marked equally on each side of
the junction line of the two parts, on separating which free access is afforded for the
Devine G73

page_text: use of a cutting tool or tools for forming the recesses, and these are so cut that the
point of junction of one recess with the next one forms a cutting edge which severs,
or nearly so, each hook as made. The recesses are cut slightly "on" the lovel so
as to prevent the pipe hook sticking in the recess.
The hooks being formed by the machine as described will be finished by a
reciprocating pressure having a semicircular foot which acts upon the broad end" or
flap" and curves the latter to an arc oqual to the circumference of the pipe to
which it is to be applied.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Henry Sutcliffe and Wright Sutcliffe in the Great Seal Patent Office
on the 5th February 1877.
HENRY SUTCLIFFE and WRIGHT SUTCLIFFE, both of Halifax, in the County of
York, Brassfounders and Finishers. IMPROVED MACHINERY AND APPARATUS TO
"
BE EMPLOYED IN THE MANUFACTURE OF PLUMBERS' PIPE HOOKS."
Heretofore in the manufacture of plumbers' pipe hooks (which are employed for
the purpose of securing gas and water pipes and bell tube in position) the practise
has been to forge them by hand.
The object of this Invention is the construction of improved machinery and
apparatus to be employed for producing such books mechanically and at greatly
reduced cost. We employ a pair of rollers (by preference of steel) mounted upon
standards and having driving gear. The periphery of the bottom roller is cut or
recessed to the form and size of the pipe hook to be made, and there are as many of
such recesses in continuation as will embrace the whole circumference of the bottom
roller.
The iron or metal from which the pipe hooks are to be made will be supplied to
the rollers in a continuous form or strip, that is to say, for small hooks stout wire
may be used. The wire will be heated to a proper degree for compression by
means of a furnace or by gas blast, or the two combined, the rollers being prevented
from becoming heated by a flow of water therethrough.
To facilitate the cutting or recessing of the roller the latter may be made in two
parts, these being mounted upon a shaft or mandril and turned to the size required,
the form or outline of the pipe hook recess being marked equally on each side of
the junction line of the two parts, on separating which free access is afforded for the
use of a cutting tool or tools for forming the recesses, and these are so cut that the
point of junction of one recess with the next one forms a cutting edge which severs,
or nearly so, cach hook as made. The recesses are cut slightly "on the bevel" so
as to prevent the pipe hook sticking in the recess.
The hooks being formed by the machine as described will be finished by a
reciprocating presser having a semicircular foot which acts upon the broad end "or
flap" and curves the latter to an are equal to the circumferance of the pipe to which
it is to be applied.
Such being the nature and object of this our said Invention we will now proceed
to describe the same in detail, and in order that the Invention may be clearly
understood we have hereunto annexed two Sheets of Drawings, and have marked
the same with figures and letters of reference.

page_text: serves as strap pulley; E, E, are gear wheels coupling the shafts of the rollers;
the periphery of the bottom roller is cut or recessed to the form and size of the pipe
hook to be made, as shewn at F, and there may be several lines of such recesses cut
around one roller at distances apart for different sizes of pipe hooks. H is the iron
or wire supplied continuously to the rollers A, B, and at J is shewn perforated fire-
clay bricks heated by furnace K. M, M, M, are gas and air burners through which
the wire is passed, thence through the guide P to the rollers.
Another plan is to heat the wire upon an iron creel or bobbin R placed within &
fire-clay or plumbago crucible S, the latter being surrounded by fuel; the wire as
heated passes out of the receiver through an elongated slot W to the burners M, or
to the rollers direct. The plan for heating the wire last described is intended to be
used where there is not sufficient room or space for the furnace and firo-clay bricks
shewn at Fig. 3.
Having thus fully described the nature and particulars of this our said Invention,
together with the manner in which the same is to be performed or carried into
practical effect, we would have it understood that we do not claim any of the parts
separately; but what we do claim is, the combination of the rolling and compressing
apparatus with the heating apparatus, arranged and constructed in the manner and
for the purpose herein fully described.
In witness whereof, I, the said Henry Sutcliffe, for and on behalf of myself
and the said Wright Sutcliffe, have hereunto set my hand and seal, this
First day of February, One thousand eight hundred and seventy-seven.
Witness,
WALTER BRIERLEY,
Patent Agent,
Halifax & Blackburn.
HENRY SUTCLIFFE. (L.s.)