Improvements in Tilt Hammers.
Year: 1893

page_text: Date of Application, 17th May, 1893
Complete Specification Left, 16th Feb., 1894-Accepted, 17th Mar., 1894
PROVISIONAL SPECIFICATION.
Improvements in Tilt Hammers.
I JOHN WILLIAM KILNER of the Firm of John Kilner and Sons Glass Bottle'
Manufacturers, Calder Vale Glass Works Wakefield in the County of York, do
hereby declare the nature of this invention to be as follows:-
A tilt hammer constructed in accordance with my invention comprises a tilting
shaft on which the hammer shaft is mounted, and which forms the axis about which
the hammer tilts. Near to and parallel with the tilting shaft is provided a rotating
driving-shaft, driven by a belt and pulley and carrying a cam plate or disc. This
cam plate is provided with slot holes, so that the cam blocks by means of bolts and
nuts can be attached to the disc in an adjustable manner, thereby increasing the
lift or blow of the hammer as the cam blocks are fixed further from the centre of
the rotating cam plate. These cam blocks catching against the short arm of the,
hammer shaft tilt up the hammer ready for giving the blow.
By means of a strong spiral spring attached to the short arm of the hammer
shaft, this arm is normally held in such a position that the rotating cams move just
clear off the hammer shaft. To the opposite longer arm of the hammer shaft is
attached a similar spiral spring, the lower end of which is attached to a long foot
lever. By pressing down this foot lever, the short arm of the hammer shaft is
raised so as to bring it in contact with the rotating cams, which thus raise the
hammer ready to strike the blow. As will be evident this rise of the long arm of
the hammer shaft stretches the spiral spring attached to the foot lever, and the
tension of this spring causes the blow; also by pressing down the foot lever with
greater or less force, the force of the blow and stroke of the hammer can be.
increased or lessened or even stopped at will.
Dated this 16th day of May 1893.
:
J. CLARK JEFFERSON,
2, East Parade, Leeds, Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Tilt Hammers.
I JOHN WILLIAM KILNER of the Firm of John Kilner and Sons Glass Bottle
Manufacturers, Calder Vale Glass Works Wakefield in the County of York 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 :-
A tilt hammer constructed in accordance with my invention, comprises a tilting
shaft on which the hammer shaft is mounted, and which forms the axis about
which the hammer tilts. Near to and parallel with the tilting shaft is provided a
rotating driving shaft, driven by a belt and pulley, and carrying a cam plate or
disc. This cam plate is provided with slot holes, so that the cam blocks by means
of bolts and nuts can be attached to the disc in an adjustable manner, thereby
increasing the lift or blow of the hammer as the cam blocks are fixed further from
the centre of the rotating cam plate. These cam blocks catching against the short
arm of the hammer shaft, tilt up the hammer ready for giving the blow.

page_text: By means of a strong spiral spring attached to the short arm of the hammer
shaft, this arm is normally held in such a position, that the rotating cams move
just clear off the hammer shaft. To the opposite longer arm of the hammer shaft
is attached a similar spiral spring, the lower end of which is attached to a long foot
lever. By pressing down this foot lever, the short arm of the hammer shaft is
raised so as to bring it in contact with the rotating cams, which thus raise the
hammer ready to strike the blow. As will be evident, the rise of the long arm of
the hammer shaft stretches the spiral spring attached to the foot lever, and the
tension of this spring causes the blow. Also by pressing down the foot lever with
greater or less force, the force of the blow and stroke of the hammer can be
increased, or lessened, or even stopped at will.
In order to be able to extend the spiral spring (which causes the blow) to a
greater extent than is possible than when the end of the spring is attached directly
to the foot lever, I may attach the lower end of the spiral spring to a chain belt,
and pass the latter round a pulley mounted loose on a fixed axle attached to the
foot of the frame casting. The other end of the chain belt passes to a large pulley
mounted eccentrically, and loose upon a fixed axle attached to the side of the
frame casting. A much smaller pulley concentrically placed with respect to the
fixed axle, is cast on one side and in one piece with the larger eccentric pulley, and
a second chain belt attached to the periphery of this pulley is attached at the
other end to the foot lever. The movement of this point of attachment to the lever
is considerably multiplied by the above arrangement, and the extension of the
spring thereby increased without inconveniently increasing the movement of the
foot end of the foot lever.
The same object may be attained by attaching the end of the said spring to
the free end of a lever hinged to a pin attached to the frame casting. By means
of a short link the foot lever is attached to the hinged lever at a correspondingly
shorter distance from the fulcrum of the hinged lever.
And in order that my invention and the manner in which the same is to be
performed may be more readily and clearly understood, reference is given to the
accompanying sheet of drawings and to the letters and marks thereon, in
which
Fig. 1 is a side elevation,
Fig. 2 a cross section on line A A of Fig.. 1 and 3, and
Fig. 3 is a plan of a double tilt hammer constructed in accordance with my
invention.
a a are the side frames or standards, carrying the driving shaft 6 in bearings c c.
dd are the fast and loose pulleys, and ee the cam plates or cam discs fixed at the
outer ends of the shaft b. gg are the cams or tappet pieces attached to the cam
plates e e, by means of bolts passing through radial slot holes in the cam plates e e.
This arrangement allows the stroke or lift of the hammer to be altered by securing
the cam pieces nearer to or further away from the centre.
hh is the hammer shaft, carried in bearings cast at the front of the standards.
The hammer shaft is conveniently fitted in a cast shoe, forming one end of the
double armed lever j; the opposite end being provided with a steel plate i on the
upper wearing surface. A spiral spring 1, normally holds the short end of
the lever to which it is attached, so depressed as to be out of contact with the
cam pieces g g as they are carried round by the cam plate. A somewhat stronger
spiral spring m is attached to the opposite end of the lever j, and the lower end of
the spring m is attached directly to the foot lever n; or as shewn in the drawings,
to mechanism as above referred to for increasing the extension of this spring m
without unduly increasing the movement of the foot lever. This mechanism consists
of the large and small chain belt pulleys o and p, cast or otherwise secured together,
and mounted loose on the pin q. One chain belt r passes from the lower end of
the spring m beneath the guide pulleys to the periphery of the large pulley o.
A shorter chain belt v passes from the smaller pulley p to the foot lever l. The
large pulley o is mounted eccentrically on the pin 9, and the attachments as shewn

page_text: are so made, as to give the greatest extension to the spring m for a given move-
ment of the foot lever n. The spiral spring m draws down the long arm of the
tilt hammer, and raises the shorter arm, so as to bring it in the way of and in
contact with the revolving cams or tappets g, which depress the short arm and
raise the long arm with the hammer shaft, and still further stretch the spiral
spring m; so that on the passing of the cam, the tension of the spring brings down
the hammer with greater or less force according to the depression of the lever n by
the foot.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is :-
1. In power tilt hammers the combination of a rotating disc fitted with cams or
tappets, a hinged hammer lever acted on by said cams or tappets and a couple of
springs; the one attached at one end to the short arm of said lever and at the
other end to a convenient fixed part of the machine, and the other spring attached
at the one end to the long arm of said lever and at the other end directly or
indirectly to a hinged foot lever.
2. The combination of shaft 6 provided with fast and loose pulleys d d and disc
plate (or plates) ee having adjustable cams or tappets 9 attached thereto―with
shaft carrying the tilt hammer lever, and springs and m; the former attached
at one end to the short arm of said lever and at the other end to a fixed point on
the machine, the latter m attached at one end to the long arm of said lever and at
the other end to the foot lever n, either directly, or indirectly by means of pulleys o
and p and chain belts and v, or by means of an intermediate lever, substantially
as herein set forth or illustrated.
3. The general arrangement and construction of power tilt hammer substantially
as herein set forth or illustrated.
Dated this 8th dox of February 1801
J. CLARK JEFFERSON,
2, East Parade, Leeds, Agent for Applicant.