An Improved Machine for Releasing Tubes from Mandrels.
Year: 1895

page_text: Date of Application, 24th Oct., 1895
Complete Specification Left, 24th July, 1896-Accepted, 3rd Oct., 1896
PROVISIONAL SPECIFICATION.
An Improved Machine for Releasing Tubes from Mandrels.
I ROBERT WOOTTON of 113 Harborne Road Edgbaston, Birmingham in the
County of Warwick, Gentleman do hereby declare the nature of my said invention
to be as follows:-
My invention has for its object an improved machine for releasing tubes from
mandrels by which greater compactness is attained with increased efficiency.
My improved machine consists of rolls mounted in a frame so that they may be
geared together and operated so as to draw the tube and mandrel through them
with an elastic pressure. In the case of a top and bottom roll only while both are
driven one of the rolls has latteral liberty on its shaft which assists in preventing
undue strain coming upon any portion of the tube. Then the spur driving wheel
is driven by a pinion mounted on a shaft under the floor level or thereabouts.
This shaft carries the driving and reversing pulleys so that the machine may be
quickly reversed when the tube and its mandrel has travelled nearly through in
one direction thus saving time in having to hand the tube and mandrel back to the
entrance. For the purpose of withdrawing the tube from the mandrel I mount a
table on brackets or legs by the side of the machine upon which a gripper works
to lay hold and draw the tube away while the mandrel is kept stationary.
Dated this 23rd day of October 1895.
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent for Applicant.
I, ROBERT WOOTTON of 113 Harbone Road Edgebaston, Birmingham, in the
County of Warwick, Gentleman, do hereby declare the nature of my said invention
and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:—
My invention has for its object "An improved machine for releasing tubes from
mandrels by which greater compactness is attained with increased efficiency.
My improved machine consists of rolls mounted in a frame so that they may be
geared together and operated so as to draw the tube and mandrel through them
with an elastic pressure. In the case of a top and bottom roll only which both
are driven one of the rolls has latteral liberty on its shaft which assists in
preventing undue strain coming upon any portion of the tube. Then the spur
driving wheel is driven by a pinion mounted on a shaft under the floor level or
thereabouts. This shaft carries the driving and reversing pulleys so that the
machine may be quickly reversed when the tube and its mandril have travelled
nearly through in one direction thus saving time in having to hand the tube and
mandril back to the entrance.
In order that my invention may be clearly understood and more easily carried
into practical effect I have appended hereunto two double sized sheets of drawings

page_text: upon which I have illustrated my new machine in regard to the important parts in
their combination the one with the other to constitute my improved reeler or
machine for releasing tubes from their mandrils.
Figure 1. is a front elevation of my new machine showing the rolls R. and R¹
mounted in their housings H and H₁ and operated by the gearod wheels, pulleys eto.
hereafter to be explained.
Figure 2. is an end elevation of the machine as shown by Figure 1. but in both
views the driving belts are absent to avoid complication but these will be readily
understood from the explanation.
Figure 3. shews a tube T and mandrel M which is about to be operated on by a
machine.
The rolls R and R¹ are hung in their chucks C and C¹ and mounted in the
housings H and H¹. The bottom chuck C¹ may be adjusted by the double
wedge w³, w which is operated by the hand wheel and screw W² the pressure upon
the top roll R¹ is a measured one by means of the springs S one of which is
mounted in each housing and is regulated by the hand wheels and screws W and W¹.
The housings are mounted upon the substantial bed plate B which stands on the
standards B¹ and B. The latter standard B2 is a box standard and carries a
plummer block to support the shaft E similar to Y for supporting the outer end
of the shaft E. This driving shaft E has mounted upon its inner end the
pinion P which drives the spur wheel N mounted upon the spindle of the lower
roll Rand at its other end the open pinion K gearing into a similar pinion K¹ on
the spindle of the upper roll R¹. The driving shaft E also carries two fast driving
pullies F and F¹ and two loose pullies Land L' and two driving belts are used
one being a crossed belt and the other plain so that the rolls may be run in either
direction from any suitable overhead or other driving shaft not shown. The belts
are moved from the fast to loose pulleys and vice versa by the rods at one on each
side which carry the forks a² and as which are operated on one side by the lever
handle A and on the other side by the levers A¹. For the purpose of clearness
I have shown the mandrel M with its fast tube T ready to be introduced into the
machine. This is passed through once and the driving belts are reversed at the
pulleys by the handles A and A¹ when the tube and its mandrel are brought back
which operation may be repeated until the tube is sufficiently loosened or enlarged
to slide off the mandril. It will of course be understood that I do not make any
general or broad claim to the use of rolls for removing tubes from mandrils but
to the machine itself in which such rolls are used either the upper or lower roll
may be left with liberty to slide latterally a short distance so as to prevent undue
strain upon the tube.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
The improved machine for releasing tubes from mandrils consisting essentially
of the rolls mounted in their housings under springs with the adjusting arrange-
ment and the driving and reversing mechanism all substantially as herein set forth
and as shown upon the drawings.
Dated this 0 1 1 CT1- 1900
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent for Applicant.