A NEW OR IMPROVED MACHINE FOR DRIVING PILES
Year: 1854

page_text: LETTERS PATENT to Edward Trenery, of Stourbridge, in the County of
Worcester, Contractor, for the Invention of "A NEW OR IMPROVED MACHINE
FOR DRIVING PILES."
Sealed the 2nd February 1855, and dated the 18th August 1854.
PROVISIONAL SPECIFICATION left by the said Edward Trenery at the
Office of the Commissioners of Patents, with his Petition, on the 18th
Augusi 1854.
I, EDWARD TRENERY, of Stourbridge, in the County of Worcester, Contractor,
do hereby declare the nature of the said Invention for "A NEW OR IMPROVED
MACHINE FOR DRIVING PILES" to be as follows:-
Figure. 1 of the accompanying Drawing represents a front elevation of my
Invention, and Figure 2 represents a side elevation of the same. a is the
pile to be driven; b, the hammer or ram, which by falling strikes and drives
the pile a. The hammer b is raised in the following manner:- is a rack.
attached as represented to the chain d of the hammer. e is a crank, the
pin of which engages in the said rack, as represented in Figure 2. By
ans of the winch and gearing h. the crank is. made to revolve slowly.
and at each revolution the said crank engages in and depresses the rack 'c;
the ram bis thereby raised. When the crank e has arrived at its lowest
point, the rack c comes against the stop i, and is thereby disengaged from
[Price 8d.]

page_text: the crank c: the hammer falls, and is raised again, when the crank & again
arrives in the position shown in Figure 2. The crank e is weighted. so that
it may more or less counterbalance the hammer b as the pile a descends.
The chain dis lengthened by uncoiling it from the drum k.
SPECIFICATION in pursuance of the conditions of the Letters Patent. filed
by the said Edward Trenery in the Great Seal Patent Office on the
16th February 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
TRENERY. of Stourbridge. in the County of Worcester, Contractor, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, hearing date the Eighteenth day of August, in the year of our Lord
One thousand eight hundred and fifty-four. in the eighteenth year ઈ.
Her reign. did, for Herself. Her heirs and successors. give and grant unto
me. the said Edward Trenery, Her special licence that I. the said Edward
Trenery. my executors, administrators, and assigns, or such others as I.
the said Edward Trenery, 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 "A NEW
OR IMPROVED MACHINE FOR DRIVING PILES," upon the condition (amongst
others) that 1. the said Edward Trenery, by an instrument in writing under
my hand and seal, 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 Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that 1, the said Edward Trenery, do hereby declare
the nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof (that is to say):
My Invention consists of a machine for driving. piles, constructed in the
manner hercin-after described and illustrated in the accompanying Drawing.
Figure represents my Invention in front elevation, and Figure 2 represents
the same in side elevation. a is the pile to be driven; b is the hammer or
ram, which by falling strikes and drives the pile a. The hammer or ram b is

page_text: raised and detached from the raising mechanism in the following manner:
c is a rack, of the form represented and attached to the chain d. The said
chain d is connected to a pulley e, hanging in the chain of the hammer or
ram, in the way represented in the Drawing.
The end of the chain is coiled on a drum g working on the frame of the
machine. is a winch on the fly-wheel is the motion communicated by the
said winch to the said fly wheel is transmitted through a train of wheels to
the axis. on which the arm or crank is situated. to which said crank a slow
motion is communicated. When the crank is at the highest point in its
revolution, the pin thereon engages with the rack c. as will be understood by
an inspection of the Drawing. As the crank axis revolves, the rack
depressed and the hammer or ram braised.
is
When the crank has arrived
comes in contact with the stop
at the lowest point. in its revolution. the rack
m, which arrests its further motion; the crank k. proceeding in its motion.
becomes detached or disengaged from the rack c. when the raised hammer b
falls. When the crank k has come round again to the highest point in its
revolution it again engages with the rack c. and raises the hammer, and the
action described is repeated at each revolution of the said crank. The crank k
is weighted, so that it may in part counterbalance the hammer as the latter
is being raised. As the pile a is driven, it is necessary that the hammer b be
enabled to follow. it. For this purpose the chain is lengthened, by the
turning of the drum g and the uncoiling of the chain therefrom.
Having now described the nature of my said Invention, and the manner of
carrying the same into effect, I wish it to be understood that I do not limit
myself to the precise details herein described, as the same may be varied
without departing from the nature of my said Invention; but I claim as my
Invention, a machine for driving piles, in which the hammer or ram is raised
and detached from the raising mechanism and its range of motion changed, in
the manner herein described and illustrated in the accompanying Drawing.
In witness whereof, I, the said Edward Trenery, have hereunto set my
hand and seal, this Fifteenth day of February, in the year of our
Lord One thousand eight hundred and fifty-five.
Witness.
GEORGE SHAW.
EDWARD TRENERY. (L.S.)