Improvements in Machinery or Means for Drilling, Boring, and connection with the Performing other like Operations in Preparation of Billets, Ingots, or Rods employed in the Manufacture of Seamless Metallic Tubes and other Articles of a like Manufacture.
Year: 1892

page_text: Date of Application, 4th May, 1892
Complete Specification Left, 16th Sept., 1892-Accepted, 22nd Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Machinery or Means for Drilling, Boring, and
connection with the
Performing other like Operations in
Preparation of Billets, Ingots, or Rods employed in the
Manufacture of Seamless Metallic Tubes and other Articles
of a like Manufacture.
We, BENJAMIN SHORTHOUSE, and GEORGE SHORTHOUSE, trading as B. and
G. Shorthouse, of Spring Hill, in the City of Birmingham, Manufacturers, do
hereby declare the nature of this invention to be as follows:-
This invention relates to machinery or means for drilling, boring and performing
other like operations in connection with the preparation of billets, ingots or rods,
employed in the manufacture of seamless metallic tubes and other articles of a like
manufacture.
'
The object of our invention is a double-ended or double operating machine, that
is to say, performing upon a billet or the like, at both ends, and at the same time,
and during the time that the said double-ended operation is being performed, the
article operated upon is rotated upon in a reverse direction, to the drilling or other
tools performing at the ends of the article under operation.
Thus, during the time that the article under operation, which is secured by
chucks or other centring clamps, within the middle of a frame encircled by a
rotating pulley, head stocks carrying drilling, boring or other operating tools are
advanced upon the ends of the said article being drilled or otherwise operated upon.
As the said drills approach each other, near the middle of the billet or other
article, one of them stops, and retires by automatic means, leaving the other drill
to complete the hole or other operation.
The said drilling, boring or other tool working from the ends are rotated by
band or other suitable gear, and we propose that the band which drives the
head stock which carries the tool, which retires before the operation is completed,
should be automatically transferred to an idle one, or to one which will give the
said head stock or tool carrier a reverse movement, whilst the other headstock is
still advanced, to complete the work.
Thus, in carrying out one form of our invention, we take a long bed or frame,
supported in any desired manner, and we fit or provide the end and topside faces
of the same, with reciprocating slide rests or saddles, having headstocks and other
frames, for conveying the necessary tools and driving appliances.
These slide rests are driven in opposite directions, by screws, screw and tangent
gear or other means, towards a middle framing or upright, directed upwardly from
the topside of the middle of the bed, and which middle framing is fitted with
centring clamps or holding chucks, located or fitted within the middle part of a
driving pulley, and which pulley, and its adjuncts, are driven at any speed, as may
be desired.
The traversing slide rest head stocks, are likewise fitted with holding chucks or
centring clamps, fitted with drills or other operating tools, and driven by band or
other gear, in a reverse direction to that of the middle billet or like carrier.
Assuming a billet be placed within the carrier, and taking central position, and
with its axis lignable with the drills, then by rotating the said billet, through the
intervention of means as described, and at the same time advancing the head stocks,
and tools carried by them towards each other, the said billet is drilled from
opposite ends. Immediately the drills approach each other near the centre of the
billet, then one of them retires, leaving the other to complete the work, and
immediately the one which is to complete the work has fulfilled its duty, it retreats
to its normal position.

page_text: The automatic changing of the traverse of the said slide rests is performed by
parts of them coming in contact with levers, or other mechanical adjuncts, which
change the direction of motion of the said reciprocating parts, by the changing of
bands from one pulley to another, or by the changing of the positions of the reversing
levers.
Besides billets or like articles being drilled from both ends at the same time, the
work done is perfectly true, consequent upon the rotatory motion of the article
under operation.
The imparting of the rotatory motion to articles being drilled, bored or turned,
corrects any faults in the proper performance of the operating tools.
As a further form of our invention, the slide rests may be reciprocated by worm
and tangent gearing, with the tangent wheels having upon their axes, pinions,
which gear with toothed wheels, whose axes carry pulley's or the like, so that by
rotating the said pulleys, a reciprocation of the slide rest is produced.
Stops are arranged, to prevent the drills meeting, and other arrangements are
made for carrying the advancing drill to complete the work, while both drills are
made to retire automatically, after accomplishing their forward movements.
The application of our invention to the performing of other operations, such as
eccentric boring, crown drilling, mouthing, centring, skinning, turning or the like,
differs in no essential respect from the operation as described, other than the
employment of suitable tools to perform the desired operations.
Our invention is particularly applicable to the drilling of hot or cold steel ingots,
for the making of seamless steel tubes.
Dated this 3rd day of May 1892
BENJAMIN SHORTHOUSE,
GEORGE SHORTHOUSE,
By Harry Skerrett,
Agent for Applicants.
COMPLETE SPECIFICATION.
Improvements in Machinery or Means for Drilling, Boring, and
Performing other like Operations in connection with the
Preparation of Billets, Ingots, or Rods employed in the
Manufacture of Seamless Metallic Tubes and other Articles
of a like Manufacture.
We, BENJAMIN SHORTHOUSE and GEORGE SHORTHOUSE, trading as B. and
G. Shorthouse, of Spring Hill, in the City of Birmingham, Manufacturers, 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 to machinery or means for drilling, boring and performing
other like operations in connection with the preparation of billets, ingots or rods,
employed in the manufacture of seamless metallic tubes and other articles of a like
manufacture.
Figure 1 of the accompanying drawings, represents partly in elevation and partly
in longitudinal vertical section, machinery for the boring of billets, employed in the
manufacture of seamless metallic tubes, and constructed and arranged according to
my invention.
In this said view, the ends of the billet, which is affixed within a
rotating carrier, working within bearings carried by a holster, are shown in section,
and so also are the bearings of the holster, and the driving pulley which encircles,
and is made fast to, the carrier.
Figure 2 represents a top side plan of the said machine Figure 1, showing the
positions of the independent means for the driving of the billet, and the means,
automatic and otherwise, for transversing the slides or saddles carrying the drills
or boring tools.

page_text: Figure 3 represents a cross section of the machine upon the dotted lines A. B.
Figure 2, and
Figure 4 is a cross section upon the dotted lines C. D. Figure 1.
The section Figure 3, shows the means of making fast and loose one of the
connection wheels, by which the travel of the boring tools is governed, through
the instrumentality of the slides or saddles, which are traversed upon the bed of
the primary framing, by toothed racks on their undersides intergearing with
pinions, carried upon sleeves, which are made fast and loose within the interiors of
the hollow bosses or bushes of the said connection wheels, while the section
Figure 4, shows an end elevation of the holster, the carrier within the bearings of
the same, and the transmitting driving wheels.
The same letters of reference indicate corresponding parts in the several figures
of the drawings.
a is the framing of a machine, having sliding upon the bed a thereof, slide rests
or saddles b, b', surmounted by drill holders c, cl, having clamping screws c², c,
directed vertically through the necks of them, and by means of which the fixed
drills d, d', are held. These said slides or saddles, which are located upon the two
opposite ends a', a³, of the bed, have toothed racks e, e', upon their undersides, which
work through longitudinal gaps or clearance a, a, made through the middles of
the ends of the framing, and which racks engage with pinions, (see Figure 3)
made fast upon sleeves g, g¹, working within bearings a, made through castings
formed in the sides of the uprights of the framings. These sleeves have coned
ends which take into the interiors or middles of hollow bosses 2, of connection
wheels h, h', which intergear with pinions i, i, upon shafts, carrying tangent
wheels k, ', with which worms j, j', gear, and which worms are driven by a shaft 4,
receiving motion through a train of wheels 11, 12, 13, 14, upon a shaft, carrying
fast and loose pulleys 1, 17.
The connection wheels h, h', are made fast upon the coned ends of the hollow.
shafts or sleeves g, g', by rods m, m', passing up the axes of the said hollow shafts
or sleeves, and with one of their ends having plates or bosses m³, and with the
other end of each of the said rods being screwed at m³, upon which capstan nuts m*,
take, and with the inner bosses of them abutting against interposed plates or
washers m³.
The ends of the hollow bosses of the connection wheels h, ', extend a little
beyond the coned ends taking within them, so that as the capstan or lever nuts m*,
are screwed up, the rods are drawn longitudinally within the interiors of the
sleeves, hence the forcing of the connection wheels upon the coned ends, and the
affixing of the said connection wheels upon the hollow shafts or sleeves, which turn
together.
n¹, so
Made fast upon the hollow shafts or sleeves g, g¹, are capstan wheels
that when the connection wheels are free, the capstan wheels n, n', impart
independent movement to the pinions f, f', and by them, the slides b, b', are moved
back by hand.
The transferrance of the band from the fast to the idle pulley, and the stopping
of the slide rest from proceeding further in its forward traverse is performed
by self acting means, consisting of slides o, o', with their inner ends acting or
impinging upon the two opposite sides of a centre p², of a lever, connected
at p³, to a rod pt, working within guides, and carrying at one end, forks p6,
which embrace the band.
Thus, should a workman leave the machine unattended, then the fore parts 6, 6³,
of the slide rests b, b, press upon the ends o³, o³, of the slides o, o', and turn the
lever p, from right to left, and so take the band from the fast to the idle pulley.
It will be understood that as the impingement of the one side is inside the
joint of the lever, the action is the same as the impingement of the other side
outside the joint of the lever.
Disposed in the middle of the bed of the frame, and located hetween the
slide rests b, b', is a fixed framing or holster q, fitted with a rotating carrier r,

page_text: working within plain bearings q², of the upright_bracket framing or holster
and having made fast to it, a centrally disposed pulley, which is rotated by
a band, and imparts to the billett, affixedly secured within the hollow interior
of the said carrier, by screw pins, a rotatory motion.
It will thus be seen that the said billet is drilled or bored simultaneously
from both ends, and, as will be hereinafer described, immediately the points of
the boring tools approach each other within the axis of the said billet, one of
them is thrown out of gear, and the axial hole desired is completed by the other.
The drilling is performed by stages, or by first drilling the two ends, first by a
short length of drill, and then increasing the same until the points of the drills
meet, and with one drill made to proceed a little further than the other, so that
the drill having a shorter length, is stopped first, leaving the one at greater length
to complete the hole.
OPERATION.
Assuming a billet to be placed within the rotatory holder r, and affixed centrally
in position by the clamping screw pins, and with the band placed around the
pulleys, which is located and steadied between the uprights of the holster or
holsters 4 then during the rotation of the said billet, motion is communicated to
the slide rests, from the fast pulley 17, on the shaft 1, to the pinion 1, which drives
the toothed wheel 13, and is from thence transferred to the pinion, through the
axis upon which the two last named are mounted.
The pinion, drives a toothed wheel, on the worm shaft 1, and from thence
motion is communicated to the worms j, j', which intergear with the tangent
wheels k, k, and being on the same shafts, as the pinions i, i, motion is transferred
from the said pinicus to the connection wheels h, h, and from thence through the
sleeves or hollow shafts g, g', to the pinions, which by their rotation, give a
forward movement to the slide rests b,, through the toothed racks e, e', of them.
Assuming that the boring tool d is drawn out to a greater distance than the
operating end of the boring tool d¹, and as the drilling proceeds to nearly the feed
or extent of the drills, then the workman first seizes hold of the lever or capstan
nut m', in connection with the slide 6', and drill d', and unscrews the same, when
the connection wheel 4', runs loose upon the coued end 2, and the slide rest is
brought to a standstill, and then taken back to its former position by the rotation
of the capstan wheel n', in a reverse direction.
As the drill d, carried by the slide rest b, is approaching the end of its feed, and
before the front 62 of the same impinges upon the turned end o³, of the slide 0, the
workman performs the same operation with respect to the lever or capstan nut o*,
in connection with the slide b, as he did with respect to the slide b'.
It will be understood that the stopping of the further movement of the slide
rest is performed alike unto that of 6, before the front 3, of the same impinges
upon the turned end o³, of the slide o¹, which, if allowed to proceed, would stop the
whole of the transmitting gear or mechanism.
The clamping screws of the drills are now loosened, and the drills themselves
moved forward and again affixed, so as to take a greater length of drill, and
assuming that the acting ends of the said drills have been so far extended that they
meet at the middle of the billet, and with the right hand side one d, slightly
extended beyond the middle of the billet, on the driving mechanism being again
started, the necessary forward traverse is given to the slide rests, when the same
operation is repeated as before, by first making loose the connection wheel h¹, and
reversing and taking back by hand the slide rest to its former position. During
this time, the slide rest b which carries the longer drill, has proceeded further than
the other drill, and passed beyond the middle, hence the completion of an all-
through hole through the axis of the billet.
It will be understood that the connection wheels h, h', are made fast prior to the
forward traverse of the slide rests, by the screwing up of the lever or capstan nuts
of each of the slides and connection wheels.

page_text: Again, assuming that the workman has left the machine unattended, and that.
the slides are capable of making their full forward traverse, then the impingements
of the fronts of the slide rests upon the ends of the slides o, o¹, throws or transfers
the driving band from the fast to the loose pulley, and so instantly stops the
machinery.
It will be understood that either slide rest will perform the necessary duty
assigned in respect to the throwing of the band out of gear, so as to prevent.
breakage of the working parts.
The billet is placed in, and removed from the rotatory carrier by running back
one or other of the slide rests.
Instead of employing clamping screw pins, for the affixing and centring of the
billet within the carrier, a universal chuck may be employed in lieu thereof, and
further, instead of driving the carrier by a pulley, the same may be driven by gear.
The application of our invention for the preparation of ingots, rods or other such
like articles, and also in the performance of other tooling operations, such as facing,.
counterboring, mouthing or the like, differs in no essential respect from its
application, as herein described to a machine for the drilling of billets.
Having now particularly described and ascertained the nature of our inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
First In a billet or like drilling or boring machine, making the drills or
boring instruments operate or perform upon both ends of the billet at the same
time, and in unison, and during the time that the said billet is rotated,
substantially as described and set forth.
Secondly In a double-ended drilling machine, the construction and arrange-
ment of the slide rests or drill carriers, in combination with a rotating billet, or
a rotating billet carrier, as described and set forth.
Thirdly a double-ended drilling machine with rotating billet carrier,
the combination with the slide rests, of the driving and transmitting gear, as
described and set forth.
Fourthly In a double-ended drilling machine, with traversing drill carriers,
the combination with the said drill carriers, of a holster or frame, located about
the middle of the bed of the general carrying frame, and having disposed and
working within bearings of it, a billet, ingot, or rod carrier, having a driving pulley
or gear, and billet or like holding means connected with it, as described and set
forth.
:-
Fifthly In a drilling machine, automatic means for the throwing of the driving
band, or driving means out of gear, by the impingement of the slide-rests, tool-
carriers, or their equivalents as set forth.
Sixthly In a drilling machipe, making alternately fast and loose, the
connecting wheel or its equivalent, by a coned-ended hollow axis or sleeve,
having a pinion upon it, which gears with a toothed rack, carried by a traversing
slide or slide rest, substantially as described and set forth.
Seventhly In a drilling machine, the construction and arrangement of the
means for making alternately fast and loose, and throwing into and out of gear the
parts, as described and set forth.
:―
Eighthly The improvements in the construction, arrangement and mounting of
the parts of drilling machines, as herein described and set forth.
Datel this 15th day of September 1892.
BENJAMIN SHORTHOUSE,
GEORGE SHORTHOUSE,
By Henry Skerrett,
6, Livery Street, Birmingham, Agent for Applicants.