AN IMPROVED METHOD OF AND MACHINERY OR APPARATUS FOR FINISHING ORALATION
Year: 1882

page_text: LETTERS PATENT to Samson Fox of the Leeds Forge, New Wortley, Leeds in
the County of York Engineer and Ironmaster for an invention of AN
IMPROVED METHOD OF AND MACHINERY OR APPARATUS FOR FINISHING OR
PROVISIONAL SPECIFICATION left by the said Samson Fox at the Office of
the Commissioners of Patents on the 13th April 1882.
SAMSON Fox, of the Leeds Forge, New Wortley, Leeds, in the County of York,
Engineer and Ironmaster, "AN IMPROVED METHOD OF AND MACHINERY OR
APPARATUS FOR FINISHING OR TRIMMING THE ENDS OF CORRUGATED AND OTHER
METALLIC TUBES
"1
Horetofore it has been usual to finish or trim the ends of corrugated and other
metallic tubes by hand.
Now according to my invention such finishing or trimming is effected by the
use of a suitably driven circular saw, in conjunction with an adjustable cradle
furnished with slides and rollers (or their equivalent) upon which the tube to be
operated upon is mounted in such a manner that the said rollers in the case of a
corrugated tube, take into the hollows of the corrugations thereof, and in the case
of a plain tubo bear against the outer periphery of the same and that the tubo
when so mounted is capable of being rotated on the rollers. One of the above
named slides carrying a roller or rollers is placed in a position near the circular
saw, the other slide or slides and rollers being so placed that when a tube, with its
end heated all round, has been placed upon tho rollers preliminary to the operation
of trimming, sucb tube will be resting with its periphery somewhat clear of the
saw; then by suitable operating mechanism certain of the rollers aro caused to
force the tube towards the saw, the slide near the saw being at this time fixed so
that its rollers serve as a fulcrum upon which the tube is caused by the approaching
of the moveable slide or slides and rollers, to tilt and be brought into contact with
the saw and when the tilting has so far proceeded that the saw has penetrated
through the thickness of metal composing the tube, the latter is rotated on the
rollers either by hand or otherwise until the whole end has been trimmed; both
ends of the tube are operated upon in a similar manner. When trimming a plain
tube in the same way, it is held from moving end wise until the saw has penetrated
the thickness of metal of which the tube is composed; afterwards the tube is
rotated as above described with reference to corrugated tubes.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Samson Fox in the Great Seal Patent Office on the 11th October
1882.
SAMSON Fox, of the Leeds Forge, New Wortley, Leeds in the County of York,
Engineer and Ironmaster AN IMPROVED METHOD OF, AND MACHINERY OR
APPARATUS FOR FINISHING OR TRIMMING THE ENDS OF CORRUGATED AND OTHER
METALLIC TUBES."
Heretofore it has been usual to finish or trim the ends of corrugated and other
metallic tubes by hand.
Now according to-my-invention-such-finishing-or-trimming is effected_by_the_use_
of a suitably mounted and driven circular saw, in conjunction with an adjustable
cradle comprising a bed or gauntry provided with slides and rollers (or their
equivalent). Upon these rollers the tube to be operated upon is mounted in such
a manner that in the case of a corrugated tube, they take into the hollows of the
corrugatious thereof, and in the case of a plain tube they bear against the outer
periphery of the same. The tube when so mounted is capable of being-rotated-on
the rollers. One of the above.nained slides, which I will call the front slide, together
with its rollers, is placed in a position near the circular saw, the other or back
slide-and-its-rollers-being-so-situated-that-when-a. tube_with_its_end_heated_all_
round has been placed upon the rollers preliminary to the operation of trimming,
such tube will be resting with its periphery somewhat clear of the saw;
By means of rack pinions and racks, or equivalent means, the back slide and
rollers are caused to approach the front slide and force the tube towards the saw,
the said front slide being at this time fixed so that its rollers serve as a fulcrum
upon which the tube is caused to tilt and be brought into contact with the saw,
and when the tilting has so far proceeded that the saw has penetrated through the
thickness of metal composing the tube, the latter is rotated on the rollers either by
hand or otherwise until the whole end has been trimmed; both ends of the tube
are operated upon in a similar manner. When trimming a plain tubo in the same
way, it is held from moving endwise until the saw has penetrated the thickness
of metal of which the tube is composed, afterwards the tube is rotated as abovo
described with reference to corrugated tubes.
In the accompanying sheet of drawings, Fig. 1, is a front elevation of the
machinery or apparatus according to my invention, Fig. 2, an end elevation, and
Fig. 3, a plan. A represents a corrugated or a plain tube in dotted lines, mounted
in the cradle above referred to, and ready for being operated upon. B, is a circular
saw mounted and driven in the usual way. C, is the bed or gauntry of the cradle,
D, and D1 are slides mounted upon the bed or gauntry C, the slide D 1, is capable
of being moved thereon by the rack pinions E, E, and racks F, F, Upon theso
slides are mounted the rollers G, and G1, and their carriages H, H, capable of being
adjusted in a line parallel with the axis of the saw spindle, and also in an endwise
direction for determining the position of the trimmed end in relation to the first
corrugated groove from the said end. The front slide D. is fixed on such a part of
the bed or gauntry C, near to the saw B, that a tube resting upon the rollers G
and upon those of the slide D, is clear of the saw.
The saw being set in motion, the slide D1. is moved forward in the direction
indicated by the arrow G 2. by which motion the tube A, is tilted around the
roller G, until it attains the position shewn by the dotted lines A 1. Fig 2.
The saw B. having now penetrated the thickness of metal composing the tube,
the latter is slowly rotated by hand against the action of the saw until the end

page_text: has been completely trimmed. Plain tubes are trimmed in a similar manner, and
as previously referred to.
Having now described the naturo of the said Invention, and the manner of
carrying the same into practical effect, I would have it understood that what I
consider to be novel and original and therefore claim as secured to me by the
Letters Patent, herein before in part recited is
1. Finishing or trimming the ends of corrugated or other metallic tubes, by
the use of a circular saw in conjunction with means for retaining the tubes under
operation, substantially as hereinbefore described and shewn in the drawings.
2. The use in combination for finishing and trimming the ends of corrugated
and other metallic tubes, of a circular saw and two sets of rollers mounted on
slides, one of which is normally fixed and the other moveable, to carry the work to
the saw substantially as described.
3. The improved apparatus for finishing or trimming the ends of corrugated or
plain metallic tubes, constructed, arranged, and operating substantially as described
and illustrated.
'
In Witness whereof, I, the said Samson Fox, have hereunto set my hand
and seal this ninth day of October, in the year of our Lord One thousand
eight hundred and eighty two
Witness to the signature of the
said Samson Fox.
THO³. E. CRAVEN C.E.
Patent Agent
24 Victoria Chambers
South Parade
Leeds
SAMSON FOX (L.S.)