A NEW METHOD OF WORKING CRANES AND TILT HAMMERS
Year: 1827

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
HAGUE, of Cable Street, Wellclose Square, in the Parish of Saint George-in-
the-East, in the County of Middlesex; Engineer, send greeting.
WHEREAS His present Majesty King George the Fourth, in and by His
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Thirtieth day of August last, for Himself; His heirs and suc-
cessors, did give and grant unto me, the said John Hague; my exors, admors,
and assigns; His especial licence, full power; sole privilege and authority, that
I; the said John Hague, my exors, admors, and assigns; and every of them,
by myself and themselves, of by my and their deputy or deputies, servants
or agents; or such others as I; the said John Hague, my exors, admors, or
assigns; should at any time agree with, and no others, from time to time
and at all times thereafter during the term of years therein expressed,
should and lawfully might make; use; exercise, and vend my Invention of
A NEW METHOD OF WORKING CRANES AND TILT HAMMERS," within Engländ
and Wales and the Town of Berwick-upon-Tweed, and also in all His
Majesty's Colonies and Plantations abroad; in which said-Letters Patent
there is contained a proviso obliging me; the said John Hague, particularly
to describe and ascertain the nature of my said Invention, and in what
manner the same is to be performed; by an instrument in writing under my

page_text: hand and seal, and cause the same to be inrolled in His Majesty's High
Court of Chancery within two calendar months next and immediately after
the date of the said recited Letters Patent, as in and by the same, reference
being thereunto had, will more fully appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Hague, do hereby declare that my Invention consists of a new method
of working cranes and tilt hammers by the application of a power created by
a vacuum or partial vacuum. The way in which I make use of the above-
mentioned power in the working of cranes and tilt hammers is explained by
the following description, and by the three Drawings hereunto annexed, and
the several references thereto (that is to say) :-
I make use of a cylinder in which there is a working piston properly fitted.
This cylinder has a communication, as shewn in the Drawings annexed hereto,
with a vessel or vessels or a pipe or pipes from which the air is exhausted
or partially exhausted by means of an air pump or some other contrivance
.worked by a steam engine or some other power, the atmosphere then being
admitted to act on one side of the working piston whilst the opposite side is
exposed to the vacuum or partial vacuum; and by the arrangements described
in the Drawings, the vacuum and the atmosphere alternately changing sides
on the working piston at proper intervals, the piston is thereby caused to
reciprocate and give motion to the crane or tilt hammer. And although I
here describe the application of the power created by a vacuum or partial
vacuum to the working of cranes and tilt hammers, to be effected by the use
of a cylinder, yet I also claim an exclusive right to working cranes and tilt
hammers by the application of a power created by a vacuum or partial
vacuum by whatever means that power may be applied. The Drawings
Nos. 1 and 2 are explanatory of my new method of working cranes, and the
Drawing No. 3 to the working of tilt hammers. Figure 1 of the Drawing
No. 1 is the vertical side section of a crane with my new method applied to it.
A, an oscillating cylinder with a working piston in it, the rod of which piston is
connected to the cranked spindle G. B, a main pipe or vessel from which the
air is exhausted, or partially exhausted, by means of an air pump or some other
contrivance worked by a steam engine or some other power. C, a tube
leading from the cylinder A to the footstep of the crane. D, a tube
leading from the footstep of the crane to the main pipe or vessel B. E, a
stopcock for opening or shutting of the communication between the footstep of
the crane and the main pipe or vessel B. F, F, two guide rods for keeping
the rod of the working piston parallel to the cylinder. G, a cranked

page_text: spindle. Figure 2 of the Drawing No. 1 is a side view of the same.
H, the cylinder. I, a fourway cock for starting and stopping the crane, for
regulating the speed of it, and for reversing its motion. J, the tube leading
from the cylinder H to the footstep of the' crane. K, the tube leading from
the footstep of the crane to the main pipe or vessel marked B in Figure 1 of
the Drawing No. 1. Figure 3 of the Drawing No. 1 is a back view of the
same. L, the cylinder. M, M, two plummer blocks which form bearings for
the cylinder. N, a cover enclosing the fourway cock and the working cone
which is on the cylinder. O, a fly wheel for regulating the motion of the
crane. Figure 1 of the Drawing No. 2, is a section of the oscillating cylinder
and the parts connected with it. A, the cylinder. B, the working piston
packed with two cupped leathers. C, the rod of the working piston. D, the
cranked spindle. E, E, the sides of the crane. F, F, the two plummer
blocks. G, one of the guide rods for keeping the rod of the working piston
parallel to the cylinder. H, HI, passages leading to each end of the cylinder
from the working cone which is on it. I, 1, two passages through the working
cone. J, J, a socket which fits on the working cone, and which socket has
two passages in it leading to the two ends of the cylinder. L, the fourway
cock. K, the tube leading from the cylinder to the footstep of the crane.
Figure 2 of the Drawing No. 2 is a section through the red line M in
Figure 1 of the Drawing No. 2, shewing the air passages.
N, N, two
passages in the working cone leading to each end of the cylinder. O, the.
opening at which the atmosphere enters into the fourway cock in its way to
the working cone. P, a pipe or passage opening to the two ends of the
cylinder alternately for conducting away the air. Q, the tube leading from
the cylinder to the footstep of the crane. R, R, R, R, spiral springs for
pressing the socket on the working cone of the cylinder. S, the cover
enclosing the fourway cock and the working cone which is on the cylinder.
Figure 3 of the Drawing No. 2 is an end view of the oscillating cylinder and
plummer blocks. T, the cylinder. U, the passage in the cylinder. V, V,
the two plummer blocks which formn bearings for the cylinder. W, the cover
enclosing the fourway cock and the working cone which is on the cylinder.
Figure 4 of the Drawing No. 2 is an end view of the cover and of one of the
plummer blocks. X, the cover. Y, the tube leading from the cylinder to the
footstep of the crane. Z, one of the plummer. blocks. Figure 5 of the
Drawing No. 2 is a section of the oscillating cylinder. a, the cylinder. b, the
working piston. c, c, the two guide rods for keeping the rod of the working
piston parallel to the cylinder. d, the cranked spindle. e, e, a crosshead

page_text: which connects the rod of the working piston with the cranked spindle.,
Figure 1 of the Drawing No. 3 is a side view of a tilt hammer with my.
new method applied to it. A, a vessel from which the air. is exhausted, or
partially exhausted, by means of an air pump. or some other contrivance,
connected to the pipe B, and worked by a steam engine or some other, power.
C, an atmospheric valve for regulating the pressure. D, a cylinder, with a..
working piston in it, the rod of which piston, is connected to, the helve of the
tilt hammer. E, a pipe forming a communication between the vessel, A. and
the cylinder D. F, a cock to be used for starting and stopping the tilt
hammer and for regulating its speed. G, a slide valve for admitting air to
the upper and under sides alternately of the working piston; the air so admitted
afterwards passes through the pipe E to the vessel A, and thence, through the..
pipe B to an air pump or some other contrivance used for exhausting, or partially..
exhausting the air from the vessel A. Fig. 2 of the Drawing No. 3 shews a
method of connecting the rod of the working, piston to the belve, so as to,,
allow the tilt hammer, to strike either, perpendicularly or obliquely, as, occasion,
may require. H, a section of the tilt, hammer helye on which is a hoop of..
iron or some other proper. material, having its outer surface turned. I,
another hoop with its inner surface turned and made to fit the hoop which is.
on the helve. This hoop I is kept in its place by two rims, projecting from the
hoop which is on the helve. K, K, two side links connecting the hoop I to a.
crosshead which is fixed on the rod of the working piston. L, L, two guide
rods for keeping the rod. of the working piston parallel to the cylinder. M, a
rod fixed to the crosshead for the purpose of working the slide, valve..
N, N, two tappets attached to and moveable on the rod M, for regulating, the
length of the stroke of the tilt hammer. Figure 3 of the Drawing. No. 3 is,a
section of the cylinder marked D in Figure 1. of the same Drawing, showing
the passages and the, working piston on a larger scale. O, the cylinder.
P; the working piston packed with two cupped leathers. Q, Q, the passages
through which the air passes. to the upper and under sides alternately, of the
working piston. R, a pipe forming a communication between the vessel;
marked A in Figure 1 of the Drawing No. 3, and the cylinder. S, the slide
valve.
In witness whereof, I have hereunto set my hand and seal, this Twenty-
ninth day of October, in the year of our Lord One thousand eight
JOHN. (L.S.) HAGUE..

page_text: AND BE IT REMEMBERED, that on the Twenty-ninth day of October,
in the year of our Lord 1827; the aforesaid John Hague came before our
said Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained and specified, in form
above written. And also the Specification aforesaid was stamped according
to the tenor of the Statute made for that purpose.