Improvements in Machinery for Multiple Screwing, Turning, Boring, or Facing.
Year: 1891

page_text: Date of Application, 2nd Dec., 1891.
Complete Specification Left, 1st Apr., 1892-Accepted, 21st May, 1892
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Multiple Screwing, Turning,
Boring, or Facing.
I SAMUEL LONGMORE, of 15 Holly Hedge Road, West Bromwich, Staffordshire,.
Tube Works Manager do hereby declare the nature of this invention to be as
follows:-
:―
This invention relates to improvements in machines for screwing, boring, turning.
or facing which are primarily used for tube fittings, or other similar articles where
two or more screwings &c. may be done at the same time, and the object of this
my invention is to provide an improved general arrangement of the parts con-
stituting the machine, also an improved combination in such machines of the,
employment therewith of double or treble sets of bevel gear wheels, also improve-
ments in means whereby the screwing thread may be started, or the boring, turning
or facing effected.
These my improvements are carried out somewhat as follows:-
--
A
A suitable base plate or frame is provided upon which is mounted the various
operating parts, consisting of :-A driving shaft upon which are carried the suitable`
driving pulleys or other gear; generally however I prefer to use a speed cone
pulley, for purposes of variation in speed. At the one end of this driving shaft is
carried a driving bevel wheel, which is made to gear into two bevel wheels, one on
cither side, and thus facing each other. These two wheels consequently revolve in
opposite directions, and also are made to revolve freely (or what is termed idly)
upon the same spindle, which latter is at right angles to the driving shaft. Between
these two bevel wheels is carried a sliding clutch which slides upon a feather key
in the shaft, by which the shaft is driven in whichever direction the clutch
revolves. Upon each end or face of this sliding clutch are teeth which correspond
to similar teeth provided upon the face of the two bevel wheels aforesaid.
suitable lever arrangement is further provided, by which the said clutch may be
slid into gear with either one of the said wheels, or maintain a neutral position
between the two. Thus the shaft upon which are carried the two wheels and the
clutch may at will be driven in either direction, or made to cease motion altogether.
Near the one end of this shaft is provided a second set of bevel wheels, that is,
upon the said shaft is mounted a bevel wheel gearing into a similar wheel one on
either side, both of which are keyed to independent shafts running parallel with
the first driving shaft, and thus lying one at either end of the machine and in
line one with the other. Upon each of these shafts is again secured a gear wheel
which gears into similar wheels carried upon two final operating shafts, which
latter are also in line with each other, and lie parallel with the two former shafts.
These shafts are rotated by means of feather keys in their wheels, and also capable
of a sliding motion. These shafts necessarily revolve in opposite directions.
their inner ends provision is made by means of a loose chuck or otherwise, to
receive the one end of a screw tap tool, or dies, or other convenient tool. Also
at the inner end of the aforesaid shaft which lies at right angles to the driving
shaft, similar provision is made to receive a tap or die tool &c. Thus the line of
these three shafts converge to one point.
At
Suitable mechanism is now provided by which these sliding shafts may be
pressed forward so as to start the taps or dies in commencing their thread in the
article to be screwed, or to effect the boring, turning or facing. This is effected
by a lever in connection with each shaft and either independent of each other or
mutually acting with two or more of them, so that by operating the one, the both
or whole are simultaneously operated. Such lever or levers are within easy reach,

page_text: of the operator. In some cases I further provide a stopping motion in combi-
nation with the forward motion of the shafts, whereby when the screwing & c., has
reached a certain distance, the driving clutch shall be thrown into its neutral
position, and the machine stopped.
At the converging point of these shafts, I provide a suitable holder to receive
and to hold the article which is to be screwed &c., having at its upper part a screw
down or a cam lever grip, by which the work can be firmly held, and be quickly
gripped or released.
Thus by these means such fittings having three way screwed parts, such as,
pieces or bends, may be simultaneously screwthreaded (externally or internally).
When in operation; the machine having screwed &c. the article as far as
required, by throwing the sliding clutch into gear with the opposite wheel, the
machine is reversed and the unscrewing accomplished. Of course, if two screwings
only are required, such as for elbows, or bends at each end of a straight piece, the
remaining shaft simply runs idle.
If desired I may provide a fourth shaft with its attendant parts as previously
described, so that four way pieces may be simultaneously operated upon. This
may be done by providing that the said shaft shall be driven by a bevel wheel
thereon gearing into a similar bevel wheel upon a shaft which lies parallel with the
previously described operating shafts. Upon this shaft is a spur wheel which gears
into one of the wheels upon one of the operating shafts; or if necessary an
intermediate wheel may be used. The tools and mode of operating this fourth
sliding shaft will be similar to the other three already described.
Dated this 1st day of December 1801
CHARLES T. POWELL,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Machinery for Multiple Screwing, Turning,
Boring, or Facing.
I SAMUEL LONGMORE, of 15 Holly Hedge Road, West Bromwich, Staffordshire,
Tube Works Manager, 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 improvements in machines for screwing, boring, turning
or facing, which are primarily used for tube fittings, or other similar articles, where
two or more screwings &c. may be done at the same time, and the object of this
my invention is, to provide an improved general arrangement of the parts con-
stituting the machine, also an improved combination in such machines of the
employment therewith of double or treble sets of bevel gear wheels, also improve-
ments in means whereby the screwing thread may be started, or the boring, turning
or facing effected.
In order to more fully explain this my invention I 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 plan view of a machine constructed according to this my
invention.
'
Fig. 2, shows a modified arrangement of my said invention.
A suitable base plate or frame 1, is provided upon which is mounted the various
operating parts, consisting of:-A driving shaft 2, upon which are carried the
suitable driving. pulleys or other gear; generally however I prefer to use a speed
cone pulley 3, for purposes of variation in speed. At the one end of this driving
shaft 2, is carried a driving bevel wheel 4, which is made to gear into two bevel
wheels 5 & 6, one on either side, and thus facing each other. These two wheels

page_text: consequently revolve in opposite directions as shown by the arrows, and also are
made to revo ve freely (or what is termed idly) upon the sleeve 8; within revolves
the shaft 7, which is at right angles to the driving shaft 2. As it is necessary that
the shaft 7, should be capable of a sliding motion independent of the wheels 5 & 6;
I provide that the said wheels shall be mounted upon the sleeve 8, which is
carried at the one end in the bearing 9, and within such sleeve is carried the central
shaft. Between these two bevel wheels 5 & 6, is carried a sliding clutch 10,
which slides upon a feather key in the sleeve 8, by which the latter is driven in
whichever direction the clutch is made to revolve. Upon each end or face of this
sliding clutch 10, are teeth 11, which correspond to similar teeth 12, provided
upon the face of the two bevel wheels aforesaid. A suitable lever arrangement 13,
is further provided, by which the said clutch may be slid into gear with either one
of the said wheels, or maintain a neutral position between the two, this said neutral
position being illustrated, in which the said wheels 5 & 6 simply run idle. Upon
the front of the wheel 14, are clutch teeth 47, which correspond to clutch teeth 48
upon clutch 49. This clutch 49 is feather keyed on to the shaft 7, and capable
of a sliding motion by means of an ordinary lever action (not shown) into and out
of gear with cach other. Thus by throwing the clutch 49 out of gear with the
wheel 14 (as is shown) the shaft 7, will remain idle although the other parts of
the machine may be running. Thus the shaft 7, and the sleeve 8, upon which are
carried the two wheels 5 & 6, and the clutch 10 may at will be driven in either
direction, or made to cease motion altogether. Near the one end of this shaft 7,
is provided a second set of bevel wheels, that is, upon the said shaft is mounted a
bevel wheel 14, which is keyed fast upon sleeve 8, gearing into similar wheels 15
& 16 one on either side, both of which are keyed to independent shafts 17 & 18,
running paralled with the first driving shaft 2, and thus lying one at either end of
the machine and in line one with the other. Upon each of these shafts are again
secured gear wheels 19 & 20 which drive similar wheels 21 & 22, carried upon two
final operating shafts 23 & 24, which latter are also in line with each other, and lie
parallel with the two former shafts 17 & 18. These shafts 23 & 24, are rotated by
incans of feather keys in their wheels, 21 & 22, and are also capable of a sliding
motion. The sliding of these shafts is effected as follows:-Upon the said shafts
are carried and secured adjustable grooved collars 25 & 26 having grooves 27 & 28,
into which engage groove blocks 20 & 30, by which by means of the levers 31 & 32,
fulcrumed at 33 & 34, the said shafts 23 & 24 may be slid backwards and forwards.
The wheels 21 and 22 are also adjustable upon their shafts in order that their
inner ends which carry the removable tool holders 35 & 36, may be brought closer
together or farther apart as may be required. It will be also seen that in Fig. 1,
the wheels 21 and 22, are out of gear with their driving wheels 37 & 38. The
reason of this is, the said wheels 21 & 22, are secured to their respective shafts in
such a position that when the tools 39, 39, are free of the fitting 40 or other
article being operated upon, the wheels 21 & 22, are also by that time slid out of
gear with the wheels 37 and 38 and therefore are at rest. These shafts 23 & 24,
necessarily revolve in opposite directions. At their inner ends provision is made
by means of a loose chuck 36, or otherwise, to receive the one end of a screw tap
tool 39 or dies, or other convenient tool. Also at the inner end of the aforesaid
shaft 7, similar provision is made to receive a tap or die tool 39 &c. Thus the
line of these three shafts converge to one point.
Suitable mechanism is now provided by which these sliding shafts may be
pressed forward so as to start the taps or dies in commencing their thread in the
article to be screwed, or to effect, the boring, turning or facing. This is effected
by levers 31, 32 and 41, in connection with each shaft and either independent of each
other or mutually acting with two or more of them, so that by operating the one,
the both or whole are simultaneously operated. Such lever or levers are within
easy reach of the operator. As illustrated, I have shown the levers 31 & 32
connected to each other by the link 42, so that when moving the one, the other is

page_text: simultaneously and thereby, moved also in the same direction and to the same
extent. Should it be necessary to simultaneously operate the three levers 31 32
& 41, a second link 42, would be further added (shown in dotted lines). In some
cases I further provide a stopping motion in combination with the forward motion
of the shafts 23 or 24, whereby when the screwing &c. has reached a certain
distance, the driving clutch shall be thrown into its neutral position, and the
machine stopped. This I effect somewhat as follows:-It has been already pointed
out that when the clutch 10 is brought into the middle position between the two
wheels 5 & 6, as shown, the machine ceases motion, therefore upon the shaft 23, I
place an adjustable collar 43, whose projecting part 44, will, when the shaft 23, has
travelled forward the distance necessary for the operation of the tool 39, come in
contact with and push forward the bell crank lever 45, which latter will in its
turn by means of the link 46 pull the lever 13 into the mid position as shown and
so stops the machine.
At the converging point of these shafts, I provide a suitable holder 46", to
receive and to hold the article 40, which is to be screwed &c., having at its upper
part a screw down or a cam lever grip of any ordinary construction by which the
work can be firmly held, and be quickly gripped or released.
When in operation; the machine having screwed &c. the article as far as
required, by throwing the sliding clutch 10, into gear with the opposite wheel, the
machine is reversed and the unscrewing accomplished. Of course, if two screwing
only are required, such as for elbows, or bends or at each end of a straight piece,
the remaining shaft is simply without motion.
In some instances I may if desired, dispense with the wheels 37 and 38 with
their shafts, in which the forward motion of the tools 39, 39 and 39", would be
simultaneous but I find it better in some cases such as when tapping the holes, to
drive the shafts 23 and 24 in the opposite direction to that of 7, by means of the
wheels as shown and thus tap the two opposite holes by the tools 39, 39, at the same
time, and thus avoid the three tools meeting each other and damaging one another.
Immediately the two tools have commenced to recede, the third tool 39 may be
then advanced, and thus be doing its work while the others are being withdrawn,
and vice versa.
The chucks 36, and the tools 39, & 39ª, will of course be varied both in form
and construction to suit the various forms of work to be done, also the holder 46"
will accordingly be modified.
Further, when bends or elbows are to be operated upon, the link 42 will be
removed, and the shaft 23 (or alternatively the shaft 24) will be thrown out of gear,
and consequently the two shafts 7 and 24 only will be operated. Or again I may
use only the two shafts 23 and 24 and put the shaft 7, out of action.
50, is a suds pan to receive the waste suds, and. borings &c. during the
operations.
If desired I may provide a fourth shaft 51, as seen in Fig. 2, with its attendant
parts as previously described, so that four way pieces may be simultaneously
operated upon. This may be done by providing that the said shaft shall be driven
by a bevel wheel 52, thereon, gearing into a similar bevel wheel 53, upon a shaft 54,
which lies parallel with the previously described operating shafts 23 & 24. Upon
this shaft 54 is a spur wheel 55, which is driven by the wheel 56, which latter is
again driven by wheel 21. The tools and mode of operating this fourth sliding
shaft will be similar to the other three already described.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :
1. In a machine for multiple screwing, turning, boring or facing the employment
or combination with the reversible set of bevel wheels 4, 5, & 6, with their
clutch 10 action, driving shaft 2, and driving pulley 3, of the second set of bevel.

page_text: gear wheels 14, 15 and 16, with the shafts 17 & 18, driving direct on by
intermediate wheels the operating shafts 7, 23 & 24 substantially as described and
shown.
2. In a machine for multiple screwing turning, boring or facing, the employment
or combination with the reversible set of bevel wheels 4, 5 & 6, clutch 10, second
set of bevel wheels 14, 15 & 16, of the third set of bevel wheels 52 and 53
operating a fourth shaft 51, in the manner shown and described.
3. The combination in a machine of the kind stated with the operating
shafts 7, 23 & 24, of the levers 31, 32 and 41, operating simultaneously in the
manner described and shown.
4. The general combination in the construction and arrangement of parts con-
stituting this my improved multiple screwing, turning boring and facing machine as
described and illustrated upon the drawings.
Dated this 31st day of March 1892.
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicant's Agent.
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicant's Agent.