Iм- DRAWEYrung IN MACHINERY FOR THE MANUFACTURE OF NATES AND THAO
Year: 1875

page_text: LETTERS PATENT to Henry Bell, of Birmingham, in the County of
Warwick, Pin and Rivet Manufacturer, for the Invention of "Iм-
DRAWEYrung IN MACHINERY FOR THE MANUFACTURE OF NATES AND THAO "
PROVISIONAL SPECIFICATION left by the said Henry Bell at the
Office of the Commissioners of Patents, with his Petition, on the
4th March 1875.
I, HENRY BELL, of Birmingham, in the County of Warwick, Pin and
Rivet Manufacturer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OF NAILS and Tacks,"
to be as follows:-
My Invention has reference to the feeding mechanism of the said
machinery by which the nail plate or strip is turned over after each
nail or tack has been cut from its end, and my said Invention consists
in constructing and combining the parts of the said feeding mechanism
in the following manner :-
The inclined feeding tube down which the nail plate or strip is fed to

page_text: the cutters, and the mechanism by which an alternating semi-rotation is
given to the feeding tube for turning over the nail plate and for lifting
the nose end of the feeding tube during the said turning over of the
nail plate are carried by an adjustable support constructed as follows:-
In front of the machine is a fixed bracket provided with an eye or socket,
and connected to the said fixed bracket is an adjustable bracket having
upon it a barrel or tubular axis, which takes into the eye or socket
described in the fixed bracket. By means of this connection the adjust-
able bracket may swivel vertically upon the fixed bracket, and have
besides a horizontal sliding motion. Tho bracket is thereby capable of
On the
adjustment in directions at right angles to one another.
adjustable bracket is a slide having bearing pieces at top which support
the turning-over mechanism. This slide is raised and lowered and the
height of the feeding tube and parts thereof adjusted by a hand screw
working in a screw box at the bottom of the bracket, and connected to
the bottom of the slide. The slide is fixed in its adjusted position by
set screws. An adjustable arm or support passes from the back of the
adjustable bracket and carries a vertical adjustable bearing in a slot, in
which the nose end of the feeding tube is supported and works.
The mechanism for giving an alternating semi-rotation to the feeding
tube for turning over the nail plate or strip is constructed as follows:-
The bearing pieces at the top of the slide herein-before described support
a horizontal shaft, to which a rocking motion is given from an excentric
or cam on the main shaft of the machine, a rod from the said excentric
or cam being connected by an adjustable joint to an arm on the rocking
shaft. On the said rocking shaft is a worm wheel which gears with a
worm or screw on the feeding tube. By the motion thus transmitted to
the feeding tube an alternating semi-rotation is given to it and the nail
plate or strip is turned over at the proper times.
The nose end of the feeding tube is lifted from the lower cutter during
the turning over the nail plate or strip in the following manner :- -On
the feeding tube and near the adjustable bearing at the nose end thereof
is a toothed wheel, and beside it is a loose collar. On the bearing
described is an axis or stud, on which a pinion works loosely, and on
the side of this pinion and working with it is a cam. The pinion gears
with the toothed wheel on the feeding tube, and the cam bears against
the loose collar on the feeding tube. As the feeding tube is partly
rotated, as before described, the toothed wheel on the nose end of the

page_text: said tube gives motion to the pinion below it and the latter to the cam,
which cam by bearing on the collar on the feeding tube raises the said
tube in its bearing, and thereby lifts the nail plate from the lower cutter
during the turning over of the said plate.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Bell in the Great Seal Patent Office on the
25th August 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
BELL, of Birmingham, in the County of Warwick, Pin and Rivet.
Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourth day of March, in the year of our Lord
One thousand eight hundred and seventy-five, in the thirty-eighth year
of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Henry Bell, Her special licence that I, the
said Henry Bell, my executors, administrators, and assigns, or such
others as I, the said Henry Bell, my executors, 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 FOR
THE MAKUPAOTURE OF NAILS AND TACKS," upon the condition (amongst
others) that I, the said Henry Bell, my executors or administrators, by
an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Scal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Henry Bell, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-

page_text: formed, to be particularly described and ascertained in and by the
following statement thereof, that is to say:-
My Invention has reference to the feeding nechansim of the said
machinery by which the nail plate or strip is turned over after cach
nail or tack has been cut from its end, and my said Invention consists
in constructing and combining the parts of the said feeding mechanism
in the following manner:-
The inclined feeding tube down which the nail plate or strip is fed to
the cutters, and the mechanism by which an alternating semi-rotation is
given to the feeding tubo for turning over the nail plate and for lifting
the nose end of the feeding tube during the said turning over of the
nail plate are carried by an adjustable support constructed as follows:-
In front of the machine is a fixed bracket provided with an eyo or
socket, and connected to the said fixed bracket is an adjustable bracket
having upon it a barrel or tubular axis, which takes into the cyc or
socket described in the fixed bracket. By means of this connection the
adjustable bracket may swivel vertically upon the fixed bracket, and
have besides a horizontal sliding motion. The bracket is thereby
capable of adjustment in directions at right angles to one another.
On the adjustable bracket is a slide having bearing pieces at top which
support the turning-over mechanism. This slide is raised and lowered
and the height of the feeding tube and parts thereof adjusted by a
hand screw working in a screw box at the bottom of the bracket, and
connected to the bottom of the slide. The slide is fixed in its adjusted
position by set screws. An adjustable arm or support passes from the
back of the adjustable bracket and carries a vertical adjustable bearing
in a slot in which the nose end of the feeding tube is supported and
works.
The mechanism for giving an alternating semi-rotation to the feeding
tube for turning over the nail plate or strip is constructed as follows:-
The bearing pieces at the top of the slide herein-before described support
a horizontal shaft, to which a rocking motion is given from an excentric
or cam or crank plate on the main shaft of the machine, a rod from the
said excentric or cam being connected by an adjustable joint to an arm
on the rocking shaft. On the said rocking shaft is a worm wheel which
gears with a worm or screw on the feeding tube. By the motion thus
transmitted to the feeding tube an alternating semi-rotation is given to
it and the nail plate or strip is turned over at the proper times.

page_text: The nose end of the feeding tube is lifted from the lower cutter during
the turning over of the nail plate or strip in the following manner :-On
the feeding tube and near the adjustable bearing at the nose end thereof
is toothed wheel, and beside it is a loose collar. On the bearing
described is an axis or stud, on which a pinion works loosely, and on
the side of this pinion and working with it is a cam. The pinion gears
with the toothed wheel on the feeding tube and the cam bears against
the loose collar on the feeding tube. As the feeding tube is partly
rotated, as before described, the toothed wheel on the nose end of the
said tube gives motion to the pinion below it, and the latter to the cam,
which cam by bearing on the collar on the feeding tube raises the said
tube in its bearing, and thereby lifts the nail plate from the lower cutter
during the turning over of the said plate.
The teeth of the toothed wheel and pinion described are so deep that
the lifting of tho feeding tube does not ungear them.
Having explained the nature of my Invention, I will proceed to
describe, with reference to the accompanying Drawing, the manner in
which the same is to be performed.
Figure 1 represents in side elevation, and Figure 2 in plan, machinery
for the manufacture of nails or tacks, to which machinery feeding
mechanism constructed according to my Invention is applied. The
same letters of reference indicate the same parts in Figures 1 and 2.
.
a is the feeding tube down which the nail plate or strip bis fed to
the cutters, the said feeding tube having an alternating semi-rotation
given to it for turning over the nail plate or strip. The said feeding
tube and the turning-over mechanism are carried by adjustable parts
constructed as follows:-c is a bracket fixed in front of the machine,
the said fixed bracket being provided with an eye or adjustable socket d.
is an adjustable bracket having at its side a barrel or tubular axis e³
which takes into the eye or socket d of the fixed bracket c. By sliding
the barrel or axis e in the eye or socket d, and swivelling the barrel or
axis vertically in the socket the horizontal and vertical positions of the
moveable bracket e and parts carried by it may be adjusted with great
nicety, the barrel or axis e being fixed in its adjusted position by the
pins ff. The horizontal position of the moveable bracket e upon the
bracket c may be further adjusted by means of the curved slots g in
the flange of the socket d being moved upon the pins li, h, fixed in the

page_text: bracket c (see Figure 2). The adjustable bracket e carries the side
bearings e, e³, in which the axis of the worm wheel i of the turning-
over mechanism is supported. On the adjustable bracket e is a dovetail
slide working nearly vertically in the said adjustable bracket e. The
top of the slide & carries the bearing pieces 1, 1, in which the feeding
tube a is supported and works. The slide k is raised and lowered and
the height of the feeding tube and parts carried by it adjusted by the
hand screw working in a screw box at the bottom of the bracket e,
the said screw being connected to the slide k by the arm m. The slide k
is fixed in its adjusted position by the set pins n. By means of the
several adjustments described and represented the height and position of
the feeding tube and the turning-over mechanism may readily and
accurately be determined.
The mechanism for giving an alternating semi-rotation to the feeding
tube a for turning over the nail plate or strip at the proper times
consists of a worm p fixed on the feeding tube a, with which worm a
worm wheel i gears, the said wheel i being carried in the adjustable
bracket e, e, as before described.
A rocking motion or an alternating semi-rotation is given to the worm
wheel in the following manner :-On the driving shaft 2 of the machino
is a toothed wheel which gears with a toothed wheel or pinion on a
parallel shaft, the said shaft carrying the crank plate s. To the crank
pin of the plate s one end of the connecting rod t is jointed, the other
end of the said rod t being connected to the lever u turning on the
centre u. To the top of the lever is connected one end of a rod v, the
opposite end of which rod v is connected to the rocking arm w fixed on
the shaft of the worm wheel i. By the motion transmitted from the
main shaft q through the gearing described, crank plate s, rod t, lever u,
rod v, and arm w, to the shaft of the worm wheel i and through the said
worm wheel i and worm p to the feeding tube a, an alternating semi-
rotation is given to the said feeding tube, and the nail plate or strip
carried by it is turned over at the proper times.
The nose end of the feeding tube is lifted from the lower cutter during
the turning over of the nail plate by the following arrangement of
parts-1 is a vertical support, the upper end of which has a concave seat
in which the feeding tube a turns. The said support 1 is carried by the
arm 2 of the lever 2, 3, the connection of the said support to the

page_text: lever 2, 3, being effected by the screw 4 so that the height of the
support 1 may be adjusted at pleasure. The lever 2, 3, is worked by the
lever 4, 5, the latter being operated by the cam 6 on the main shaft q.
Immediately after the moveable cutter has descended and cut off a
blank from the end of the nail strip b, and just before the semi-rotation of
the feeding tube commences, the rise on the cam 6 acts on the lever 4,
5, and through the lever 2, 3, lifts the support 1, and the nose end of the
feeding tube a and the nail plate is lifted from the lower cutter. When
the rise on the cam 6 passes out of action the nose end of the feeding
tube a is depressed by means of the bow spring 8 bearing on the feeding
tube, and the nail plate is made to rest on the lower cutter during the
cutting off of a blank from its end.
In Figure 1 the nose end of the feeding tube a is represented depressed,
and the nail plate in the act of being cut. By means of the spring 8
pressing down the feeding tube, the hooked end of the lever 4, 5, is
maintained in contact with the cam 6. The bow spring 8 is carried by
an arm on the bracket e.
In cutting tacks the arrangement of parts represented in Figure 3
may be employed for lifting the nose end of the feeding tube. In this
arrangement the nose end of the tube a works in a slotted .bearing 10
carried by the arm 11, the latter being fixed to the adjustable bracket
herein before described. On the bearing 10 is an axis or stud 12, on
which a pinion 13 works loosely. On the side of the pinion 13, and
working with it, is a cam 14. The pinion 13 gears with a toothed
wheel 15 on the feeding tube, and the cam 14 bears against a loose
roller 16 on the feeding tube. As the feeding tube a is partly rotated
by the mechanism herein-before described, the toothed wheel 15 gives
motion to the pinion 13, and the latter to the cam 14, which cam by
bearing on the collar 16 on the feeding tube raises the said tube in its
bearing 10, and thereby lifts the nail plate 6 from the lower cutter during
the turning over of the said plate. The teeth of the wheel and
pinion 13, 15, are so deep that the lifting of the feeding tube does not
ungear them.
Having now described the nature of my Invention, and the manner
in which the same is to be performed, I wish it to be understood that I
do not limit myself to the precise details herein described and illustrated,
as the same may be varied without departing from the nature of my

page_text: Invention, but I claim as my Invention of improvements in the feeding
mechanism of machinery for the manufacture of nails and tacks :-
⠀ First. The arrangement or combination of parts herein-before described
and illustrated in Figures 1 and 2 of the accompanying Drawing for
giving an alternating semi-rotation to the feeding tube for turning over
the nail plate or strip after a nail or tack blank has been cut from
its end..
Secondly. The arrangement or combination of parts herein-before
described and illustrated in Figures 1 and 2 of the accompanying
Drawing for lifting the nose end of the feeding tube during the turning 1
over of the nail plate or strip.
Thirdly. The arrangement or combination of parts herein-before
described and illustrated in Figure 3 of the accompanying Drawing for
lifting the nose end of the feeding tube during the turning over of the
nail plate or strip.
Lastly. The construction and arrangement of parts herein-before
described and illustrated in Figures 1 and 2 of the accompanying
Drawing for supporting the feeding tube and turning over mechanism,
and for adjusting the positions of the said feeding tube and turning-over
mechanism.
In witness whereof, I, the said Henry Bell, have hereunto set
my hand and seal, this Twenty-third day of August, in the
year of our Lord One thousand eight hundred and seventy-
fivc.
]
Witness,
HENRY SKERRETT,
Clerk to Georgo Shaw,
Birmingham.
HENRY BELL. (L.S.)