A Combined Cutting Off and Screwing Machine for Gas and other Tubes, Pipes, and Fittings, also Rods and other like articles.
Year: 1891

page_text: Date of Application, 1st Aug, 1891
Complete Specification Left, 22nd Apr., 1892-Accepted, 28th May, 1892
PROVISIONAL SPECIFICATION.
A Combined Cutting Off and Screwing Machine for Gas and other
Tubes, Pipes, and Fittings, also Rods and other like articles.
We WALTER WILLIAM DAVIES, trading as The Oriental Tube Company, of
Church Lane, West Bromwich, in the County of Stafford Manufacturer, and
SAMUEL LONGMORE of 15 Holly Hedge Road, West Bromwich aforesaid,
Manager of Works, do hereby declare the nature of this invention to be as
follows:-
This invention relates primarily to cutting-off and screwing machines, for the
cutting off and screwing of both ends simultaneously, of gas and other tubes, pipes,
rods and other analogous articles, and our said invention consists in a combined
and duplex cutting-off, and duplex screwing machine, as hereinafter described.
Mounted upon each end of a horizontal bed or framing, supported upon legs, is a
slide rest or saddle, having upon its underside, a rack, with which a pinion of a hand
wheel, working within suitable bearings carried by the framing, engages, and by the
turning of which wheel, the said slide or saddle is traversed.
Carried by, and directed upwardly from the top of each slide, are cutting off and
screwing appliances.
The cutting off appliance at each and either end, is situated either at the inner
end of each of the said slides or saddles, while the screwing appliance is disposed at
its outer end, or vice versa.
The former consists of an upright framing at each end, gapped about the middle
of its upper part, and with a supplementary tool carrier at each end; traversed by
a screw and hand wheel, which, when rotated, advances the cutter at each end, up
to one end of the tube, which is thus cut off or trued simultaneously at both
ends.
Directed radially within the gap, and opposite, and at right angles to the
cutters, are adjustable supports, for steadying the ends of the tube when being
cut off.
The screwing appliance, consists at each end, of an erect frame, made up of
opposite pillar or rod members, coupled by a crosshead, through which the adjust-
ment screw of a hand-wheel, vertically and downwardly passes, and with its lower
end, being swivelly connected to the top member of the frame of a die carrier.
Thus, the die holder, which is adjustable without interfering with the die, consists
of top and bottom cross members, coupled or united together by vertical bolts, and
between which members, the screwing die is held, by the screwing up of nuts on
the ends of the bolts.
This die holder, has eyes or holes, through the ends of its cross members, which
take upon the vertical rods or pillars forming the erect parts of the framing, so
that by the turning of the hand wheel, in one or other direction, the die is raised
or lowered, and thereby adjusted by the sliding of the die holder, upon the uprights
of the primary framing.
By raising the die holder at either end, the lower cross member is released from
one of its seat studs, and the die holder in its entirety, may be pivoted aside, one
pillar serving as the pivot for same.
Situated between the said slide rests or saddles, disposed at both ends of the
horizontal head or framing, and carrying like cutting off and screwing appliances
as described, is a clutch, for holding the object whose ends are to be cut off. and
screwed, and in conjunction with the said clutch or holding chuck, is transmitting
gear, for giving the necessary rotatory motion to the tube or rod to be operated

page_text: upon, first in one direction, and then in a reverse direction, primarily for screwing
and unscrewing.
The gear consists of a frame, having mounted within it, three bevel wheels, two
in the plane of the axis of the tube to be screwed, and one at right angles to them,
the axis or shaft of which latter, is connected with a driving pulley.
OPERATION.
Secure a length of gas tubing by the holding chuck or clamp as aforesaid,
and with the outer parts of the ends of the said tube, being supported by rests.
Then communicate a slow rotary motion to the tubing, through the intervention
of the transmitting gear as aforesaid. This done, rotate the traversing hand
wheels of the rest at each end of the machine, when the slide rests or saddles in
gear with each pinion on its axis, are traversed from left to right, or vice-versa, to a
distance sufficient to bring the tool of each cutting-off appliance, within a short
distance of each end of the tube.
Now advance the cutters of the cutting-off appliances at both ends, by turning
the hand wheels in connection with same, when each tool is made to advance against
the rotating tube, and trues or cuts off each end.
This done, withdraw the cutters, and traverse the slide or saddle again to a
further distance, so as to bring one of the said trued ends to the mouth of one of the
screwing dies, and after such end has been introduced, the die is drawn upon the
said end, which becomes automatically screwed.
The motion of the tube under operation, is now reversed, and as the screwed end
of the tube, unscrews itself from the worming die at such end, the other end
advances into another worming die, and becomes automatically screwed, at the
same time as the first end is unscrewing itself from the worming die, situate at
the other end.
The row withdrawing of the second named end from its die, by reversing the
motion of the tube, screws on the socket to the first named screwed end, such
sockets being held by a workman feeding or presenting the same to the said end to
be socketed.
Dated this 31st day of July 1891
WALTER WILLIAM DAVIES,
SAMUEL LONGMORE,
By Henry Skerrett,
Agent for Applicants.
COMPLETE SPECIFICATION.
A Combined Cutting Off and Screwing Machine for Gas and other
Tubes, Pipes, and Fittings, also Rods and other like articles.
WC, WALTER WILLIAM DAVIES, trading as The Oriental Tube Company, of
Church Lane, West Bromwich, in the County of Stafford, Manufacturer, and
SAMUEL LONGMORE, of 15 Holly Hedge Road, West Bromwich, aforesaid,
Manager of Works, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
This invention relates primarily to cutting-off and screwing machines for the
cutting-off simultaneously, and screwing of both ends of gas and other tubes, pipes,
rods, and other analogous articles, and our said invention consists in a combined
and duplex cutting off and duplex screwing machine as hereinafter described, and
in order to better explain this our invention, we have appended hereunto illustrative
sheets of drawings upon which are figures and numbers of reference, similar numbers
referring throughout the several views to the same thing or part, and in which :-.
Fig. 1, is a general front elevation of this our improved machine.

page_text: Fig. 3, is a plan view of Fig. 2.
Fig. 4, is a similar view to that of Fig. 2, but showing the screwing part turned
out of the way, (as is also shown in dotted lines in Fig. 3).
Fig. 5, is a detailed end view of the screwing part of the appliance.
Fig. 6, is a detailed end view of the cutting off part of the appliance.
Fig. 7, is a detailed front view of the driving head-stock.
Fig. 8, is a plan view of Fig. 7.
Fig. 9, is an end view of Fig. 7.
Fig. 10, is a detailed detached sectional view of the driving spindle and clutch
gearing.
Mounted upon each end of a horizontal bed or framing 1, supported upon
legs 2, 2, is a slide rest or saddle 3. Upon the bed 1, and lying beneath the
saddle 3, is the rack 4, into which engages the pinion 5, which is carried in
bearings 6, 6, carried by the framing upon the saddle 3. This pinion is operated
by the handle 7, by the turning of which the said slide or saddle 3, is traversed.
Carried by, and directed upwardly from the top of each slide, are cutting off and
screwing appliances.
The cutting off appliance at each and either end, is situated either at the inner
end of each of the said slides or saddles while the screwing appliance is disposed
at its outer end or vice versa. The former consists of an upright framing 8,
gapped about the middle of its upper part and with a supplementary tool
carrier 9, traversed by a screw 10, and hand wheel 11, which when rotated,
advances the cutter 12, up to the tube, which is thus cut off or trued simultaneously
at both ends.
Directed radially within the gap, and opposite and at right angles to the cutters
are adjustable supports 13 and 14, for steadying the ends of the tube when being
cut off. The lower support 13, remains stationary, but the upper one 14, may be
raised or lowered at will by the screw handwheel 15, as shown in section in Fig. 6,
or some other suitable manner.
The screwing appliance consists at each end of an erect frame, made up of
opposite pillar or rod members 16 and 17, coupled by a crosshead 18, through
which the adjustment screw 19, of a hand-wheel 20, vertically and downwardly
passes, and with its lower end, being swivelly connected to the top member 21, of
the frame of a die carrier. The pillar 16, is securely fixed into the saddle 3, but
the pillar 17, consists of two parts 17 & 17ª, the lower part 17º, only being
securely fixed into the saddle 3. Thus the die holder which is adjustable without
interfering with the die consists of top and bottom cross members 21 and 22,
coupled or united together by vertical bolts 23 & 24, and between which members,
the screwing die 25, is held, by the screwing up of nuts 26, on the ends of the
bolts 23 & 24. This die holder has eyes or holes, at 27, through the ends of its
cross members, which take upon the vertical rods or pillars 16 & 17, forming the
erect parts of the framing, so that by the turning of the hand wheel 20, in one or
other direction, the die 25, is raised or lowered, and thereby adjusted by the sliding
of the die holder or frame, upon the said uprights 16 & 17, of the primary
framing.
By raising the die holder by means of the hand wheel 20, the hole at 27* in
the lower cross member, is released from off the stud or lower part of the
pillar 17a, and the die holder in its entirety, may be then pivoted aside as seen in
Fig. 4, and also in Fig. 3, shown in dotted lines, the one pillar 16, serving as the
pivot for same.
Upon the bed or framing 1, is further mounted the driving headstock &c., as
shown in detail in Figs. 7, 8, 9 & 10, consisting as follows:-
28, is a frame upon which the moving parts are mounted. In the bearings 29, 29,
is carried the central shaft 30, provided at its front end with screwthread at 31,
to receive the chuck 32, (see Fig. 1). Mounted upon this shaft, and running idly

page_text: thereon are the bevel wheels 33, 34, which gear into the wheel 35, which latter is
carried upon the driving shaft 36, this latter being driven by the cone pulley 37.
Upon the face of each of the wheels 33, and 34, is provided clutch teeth which
coincide with and engage into similar teeth upon the clutch 38, which latter slides
upon a feather key in the shaft 30. The purpose and operation of this clutch
arrangement is well known, viz., that of reversing the direction of motion of
the shaft 30, by throwing the clutch into gear with one or the other wheels 33 & 34,
or of stopping the motion of the shaft 30, entirely by occupying the mid or neutral
position as shown.
The clutch 32, may be of any ordinary kind suitable for readily gripping and
holding the tube &c. to be operated upon, and also readily released for removal.
In operating this our improved machine proceed somewhat as follows:-
Secure a length of gas tubing 39, by the holding chuck 32, as aforesaid, and
with the outer parts of the ends of the said tube being supported and steadied by
the rests 13 and 14.
Then communicate a slow rotary motion to the tubing through the intervention
of the transmitting gear 33, 34, 35, 36 and 37, as aforesaid. This done rotate
the traversing handles 7, upon the saddle 3, at each end of the machine, when
the said saddles by reason of the rack 4 and pinion 5, are traversed from left
to right, or vice versa, to a distance sufficient to bring the tool 12, of each cutting-off
appliance within a short distance of each end of the tube.
Now advance the cutters of the cutting-off appliances at both ends, by turning
the hand wheels 11, in connection with same when each tool is made to advance
against the rotating tube 39, and trues or cuts off each end.
This done, withdraw the cutters 12, and traverse the saddle 3, again to a further
distance, so as to bring one of the said trued ends to the mouth of one of
the screwing dies 25, and after such end has been introduced the die is drawn
upon the said end which becomes automatically screwed.
The motion of the tube under operation is now reversed by the clutch 38, and as
the screwed end of the tube unscrews itself from the worming die at such end, the
other end of the tube advances into the other worming die at the other end of
the machine and becomes similarly automatically screwed at the same time as
the first end is unscrewing itself from the first worming die, situate at the other
end.
The now withdrawing of the second named end from its die, by again reversing
the motion of the tube, screws on a socket to the first named screwed end, such
sockets being held by a workman feeding or presenting the same to the said end to
be socketed.
By turning the handwheel 20, the die 25 and its frame is raised until the cross
bar 22, is clear of the stud part of the pillar 17", when the whole frame may be swung
out of the way as seen in Figs. 3 and 4, which greatly facilitates the removal of the
tube or other article from the machine.
Thus by this arrangement, very much time and labour is saved as compared with
appliances now in use for these purposes.
Having now particularly described and ascertained the nature of this our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
1. The employment in a machine for cutting off and screwing tubes pipes, rods &c.,
of the screwing frame and die holder, capable of being securely held in position
when in work, but which may be readily swung out of the way when so desired,
constructed and operating substantially as described and shown.
2. The combination in a cutting off and screwing machine for tubes, pipes,
fittings, rods or other like articles, with the saddle 3, having a longitudinal
traversing motion along the bed 1, and the cutting off appliance consisting of the
frame 8, rests 13 and 14, tool carrier 9 &c., with the adjustable rising and lowering

page_text: frame for the screw die 25, which is capable of being turned out of the way or
brought into and secured in line for work, constructed and operating substantially
as shown and described.
3. The general combination and arrangement of the various parts constituting
this our improved cutting off and screwing machine in which the tube or other
article may be simultaneously cut off to length, and also screwed at each end in tl.c
manner set forth, as herein described and illustrated.
Dated this 21st day of April 1892.
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicants' Agent.