IMPROVEMENTO IN MACHINERY OR ADRADATING FOR MAKING GAS BURNERS
Year: 1860

page_text: LETTERS PATENT to William Kendall and George Gent, of Salford, near
Manchester, in the County of Lancaster, Machinists, for the Invention of
"IMPROVEMENTO IN MACHINERY OR ADRADATING FOR MAKING GAS BURNERS"
Sealed the 14th December 1860, and dated the 20th June 1860.
PROVISIONAL SPECIFICATION left by the said William Kendall and
George.Gent at the Office of the Commissioners of Patents, with their
Petition, on the 20th June 1860.
We, WILLIAM KENDALL and GEORGE GENT, of Salford, near Manchester,
in the County of Lancaster, Machinists, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MAKING
GAS BURNERS," to be as follows:-
We use a number of hollow spindles, which are made to revolve by an
arrangement of wheels, pulleys, or other mechanical means. The rods of metal
or other material out of which the burners are to be made, pass through and
project from the spindles, and revolve with them.
For drilling the holes, and forming the sides of any suitable number of
burners at one operation, we employ two slides either self-acting or worked
by hand. The lower slide moves parallel with the spindles and rods, and the
upper slide moves with it in the same direction, and also transversely at the

page_text: same time. The lower slide is provided with as many vertical projections as
there are spindles, the said projections being for the purpose of holding the
drills by which the main holes of the burner are made, during the time that
the outer part is being formed by the turning tools.
Upon the upper or transverse slide we place a number of tool boxes or
holders, capable of being adjusted and held firm in any particular position that
may be required for turning or cutting the burners to their exact diameters.
The said tool holders to be of the same number as the spindles. To the end
of the said upper or transverse slide we fix a projecting piece of steel or other
suitable material, which is brought up to and kept firmly forced against a die
or guide made to any pattern to suit the form of burner required.
As the lower and upper slides (upon which the drill holders and tool
holders are fixed) move in the longitudinal direction of the spindles, the upper
or transverse slide, by the action of the pointer upon the die or guide, moves
to and fro to any curve, angle, or straight line according to the form given to
the die or guide, carrying with it the sliding tools which turn or cut the
burners to the required form and size. At the back of the die or guide, and
parallel with the spindles, rods, and drills, we introduce an angular or wedge-
like stay or other suitable contrivance, to which is fixed a small lever or
handle, by which the angular or wedge-like piece can be pushed forward or
withdrawn at pleasure, and the die and upper slide with the tools moved
transversely so as to turn or cut the burners larger or smaller, or separate
'them entirely from the metal or material of which they are made.
The nature of our said Invention will be clearly understood by reference to
the figures and letters on the accompanying outline Drawing, in which
Fig. 1 is an elevation of the slides and principal parts of the machine; and
Fig. 2, a plan of the same. The hollow spindles are represented at a, working
in the framing b, and turned by the toothed wheels c, gearing into other toothed
wheels d, one of which is on the driving shaft e. The rods of metal or other
material for the burners are shewn at f; they are drilled as required by the
drills sg, fixed to projections on the lower slide i, which moves parallel with
the rods. Upon the slide i is another slide k, so attached as to move with it,
and also transversely. The slide / carries the tool holders, in which are fixed
the cutting tools n, which are governed in their motion by the die or guide o,
at the back of which is the wedge p.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Kendall and George Gent in the Great Seal
Patent Office on the 20th December 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
KENDALL and GEORGE GENT, of Salford, near Manchester, in the County of
Lancaster, Machinists, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twentieth day of June, in the year of our Lord One
thousand eight hundred and sixty, in the twenty-fourth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
William Kendall and George Gent, Her special licence that we, the said
William Kendall and George Gent, our executors, administrators, and assigns,
or such others as we, the said William Kendall and George Gent, our exe-
cutors, administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend, within
the United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS
FOR MAKING GAS BURNERS," upon the condition (amongst others) that we, the
said William Kendall and George Gent, our executors or administrators, by
an instrument in writing under our, or their, or one of our or their hands and
seals, should particularly describe and ascertain the nature of the said Inven-
tion, and in what manner the same was to be performed, and cause the same.
to be filed in the Great Seal Patent Office within six calendar months next
and immediately after the date of the said Letters Patent..
NOW KNOW YE, that we, the said William Kendall and George Gent,
do hereby declare the nature of our said Invention, and in what manner
the same is to be performed, to be particularly described. and ascertained
in and by the following statement (that is to say) :-
:-
We use a number of hollow spindles which are made to revolve by an
arrangement of wheels, pulleys, or other mechanical means. The rods of metal,
or other material out of which the burners are: to be made, pass through and
project from the spindles, and revolve with them.
For drilling the holes and forming the sides of any suitable number of
burners at one operation, we employ two slides, either, self-acting or worked by
hand. The lower slide moves parallel with the spindles and rods, and the
upper slide moves with it in the same direction, and also transversely at the

page_text: same time. The lower slide is provided with as many vertical projections as
there are spindles, the said projections being for the purpose of holding the
drills, by which the main holes of the burner are made during the time that
the outer part is being formed by the turning tools. Upon the upper or trans-
verse slide we place a number of tool boxes or holders, capable of being
adjusted and held firm in any particular position that may be required for
turning or cutting the burners to their exact diameters and form. The said
tool holders to be of the same number as the spindles. To the end of the said
upper or transverse slide we fix a projecting piece of steel or other suitable
material, which is brought up to and kept firmly forced against a die or guide
made to any pattern to suit the form of burner required. As the lower and
upper slides (upon which the drill liolders and tool holders are fixed) move in
the longitudinal direction of the spindles, the upper or transverse slide by the
action of the pointer against the side of the die or guide moves to and fro to
any curve, angle, or straight line, according to the form given to the die or
guide, carrying with it the turning tools which turn or cut the burners to the
required form and size. At the back of the die or guide and parallel with the
spindles, rods, and drills, we introduce an angular or wedge-like stay or other
suitable contrivance, to which is fixed a small lever or handle by which the
angular or wedge-like piece can be pushed forward or withdrawn at pleasure,
and the die and upper slide with the tools moved transversely so as to turn or
cut the burners larger or smaller; or separate them entirely from the metal or
material of which they are made.
These improvements will be clearly understood by referring to the figures
and letters on the accompanying Sheet of Drawings, in which Figs. 1 and 2
are front and side elevations, and Fig. 3 a plan, of our improved machinery or
apparatus for making gas burners.
The main framing of the machine is shewn at a, at the top of which is fixed
the small frame b, having at ca bearing for one end of the driving shaft d
mounted with the fast and loose pulleys e and f, and also with a toothed wheel g.
A number of hollow spindles h, and solid spindles i; work in holes or bearings
in the small frame b, and to each hollow spindle is fixed a toothed wheel k
and to each solid spindle a toothed wheel 1, which wheels are so geared with
each other and with the wheel g on the driving shaft, that the hollow spindles
will turn one way. The rods m, of metal or other material out of which the
burners are to be made, pass through the hollow spindles, and revolve with
'them.
.
For drilling the holes and turning the sides in one operation of as many

page_text: burners as there are hollow spindles, we employ two slides n and o.. The lower
slide n moves parallel with the spindles and rods, and the upper slide moves
with it in the same direction, and also transversely at the same time. The
lower slide n is provided with as many vertical projections p as there are hollow
spindles, the said projections being for the purpose of holding the drills q for
drilling the main holes of the burners. Upon the upper or transverse slide o
we place tool boxes or holders r, corresponding in number with the hollow
spindles and rods, the said holders being capable of being adjusted to any
required position by the set screws s, and afterwards held firm by the
screws t.
To one end of the upper slide o is fixed a projection or pointer u, made of
steel or other suitable material, which is in contact with a die or guide v, made
to any pattern according to the required form of burner. As the lower and
upper slides n and o, which carry the drill holders and tool holders, move in the
longitudinal direction of the spindles, the upper or transverse slide o by the
action of the pointer u against the side of the die or guide v, moves to and fro
to any curve, angle, or straight line, according to the form of the die or guide;
and carries with it the turning tools, which turn or cut the rods to the requisite
external form of the burners. At the back of the die or guide v, and parallel
with the spindles, rods, and drills, we place an incline or wedge w, which acts
as a stay to the die or guide, a lever or handle a being jointed to the wedge,
so that it can be pushed forward or withdrawn at pleasure, and thereby move
transversely the die and upper slide with the turning tools, by which means
the burners are turned larger or smaller as required, and after which they are
nearly cut off or entirely separated from the metal or material of which they
are made by moving the upper slide by the handle . In practice it is found
an expeditious plan to cut nearly to the centres of the rods, and then break off
the burners by lowering upon them the bar or lever a', at which instant the
machine is stopped, and the rods m brought forward for a fresh set of
burners.
The bar a' is fixed to the spindle b¹ working in the support c', there being a
handle fixed to the spindle for the purpose of lowering and raising the bar.
The lower and upper slides n and o are moved parallel with the spindles and
rods by means of a screw and nut, the screw being fixed to the wheel e', which
can be turned either by hand or made self-acting by gearing into it the pinion f¹.
fixed to the shaft g', working at one end in the bearing h³, and at the other in'
a bearing in the lever k¹, which can be raised or lowered so as to place the
pinion fin or out of gear with the wheel e¹. The required motion is given to

page_text: the pinion f by the pulley, connected by the strap m¹ to. the pulley n', on
the counter shaft o', which derives its motion from the driving shaft d by means
of the pulleys p¹ and q', and the strap r¹.
The machine is set in motion by raising the starting lever s¹, which pulls the
cord t¹ and arm u', and shifts the driving strap on to the fast pulley e, and at
the same time a projection on the lever s¹ lifts the lever k¹, and places the
pinion fin gear with the wheel e', in which position it is maintained by the
catch w until the sides of the burners are finished, when the catch is released
by its coming in contact with the fixed pin or projection a¹, and allows the
lever to be lowered and place the pinion f¹ out of gear.
The machine is stopped by connecting a cord, chain, or other material y' to
the bar a', and over guide pulleys to the arm a¹, so that when the bar is lowered
the arm shall shift the driving strap on to the loose pulley f, weights being
employed to return the arms u¹ and ¹ to their original positions.
The front of the main framing a is encased as at a², so that it may contain
a box 62 for the reception of the dust and turnings, and also a drawer c² to
receive the burners; the box is open at the top, and above it, passing over the
shaft I, there is a sieve shewn by the dotted lines d, the meshes of which
allow the dust and turnings to pass through, but prevent the passage of the
burners, which pass downwards by the sides of the box into the drawer below.
Having now described the nature and particulars of our Invention, and the
manner in which the same is to be performed, we desire it to be distinctly
understood that we claim in the manufacture of gas burners,-
First, the employment of several hollow spindles all revolving together in
a suitable frame for giving motion to several rods of metal or other material
from which the burners are to be made.
Secondly, the employment of a similar number of drills, tool holders, and
tools, as there are hollow spindles and rods for drilling a number of the main
holes and turning the sides of gas burners at one operation.
Thirdly, the employment of two slides so arranged that at the same time both
may work parallel with the hollow spindles and rods, and one transversely to
them, the tool holders and tools being fitted to the transverse slide, and the
drills to the other.
Fourthly, the employment of a pointer working in contact with a die or
guide having the same outline as the form of the intended burner for regulating
the movement of the transverse slide, at the same time that both slides
move longitudinally.
And, fifthly, the mechanism for giving motion to the spindles and rods, the

page_text: self-acting movements, and also the general arrangement of the aforesaid
machinery or apparatus for making gas burners, as herein described and
illustrated in the accompanying Sheet of Drawings, or any modification
thereof.
In witness whereof, we, the said William Kendall and George Gent,
have hereunto set our hands and seals, this Nineteenth day of
December, in the year of our Lord One thousand eight hundred
and sixty.
Signed, sealed, and delivered by the within-
named William Kendall and George
Gent, in the presence of
E. J. HUGHES,
Patent Agent,
Manchester.
(4.8.)