US5172A - Jambs nasmyth - Google Patents

Description

lacting steam cylinder, a hammer block, (B)

JAMES NASMYIH, OF PATRICROFT, ENGLAND.

STEAM PILE-DRIVER.

Specification of Letters Patent No. 5,172, dated J' une 26, 1847.

To all whom t may concern.'

Beit known that I, JAMES NASMYTH, of Patricroft, in the county of Lancaster, in the Kingdom of England, have invented a new and useful Machine for Driving Piles; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making part of this specication, in which- Figure l is the elevation front view, Fig. 2, elevation side view, Fig. 3, ground plan Figs. 4:, 5, and 6 some details onlarger scale.

The principal feature in this my invention consists in the first place in the employment of the pile which is about to be driven, for the support of the pile driving part of my apparatus (which being of considerable weight, consisting as it does of the cylinder A, constructed like thatof a common single or monkey which isa heavy weight attached to the piston rod (E) of the steam cylinder and a cylindrical or other formed case (C) which is attached to the lower end of this cylinder and acts as a guide to the monkey and incloses the head of the pile on which it rests; these together weigh about 3 tons (more or less) and very importantly aids' the driving of the piles by predisposing it to penetrate into the ground.

The maner in which the apparatus A B C is made to rest on the pile may be seen by reference to Fig. 2 and Fig. 4 in which it will be seen that the guide case C has a mouth piece w so formed as while it premits the head of the pile to pass up intothe inside of the case to a certain extent, yet prevents the apparatus A B C fro-m sinking farther downupon the pile by embracing the shoulders of the'pile at a: on which therefore it rests with its'entire weight as before described. This is the first feature of novelty in my pile driving machine.

The second feature of novelty consists in the application of the direct acting steam hammer to the driving of piles.

The process' is as follows: Steam or other elastic fluid being-admitted under the piston D (Fig. 4L) by a suitable valve or valves (raises up the hammer, monkey or `beetle B; the same being connected with the piston D by the piston rod E) and when it has by its pressure raised up the hammer block B to a certain height this steam is allowed to escape from under the piston, the action of gravity then causes the hammer block to fall with great force on the. head of thepile, so knocking it into the ground, which action is in# stantly followed by a proportionate descent ofthe whole apparatus A B C and no sooner has this again settled itself on the shoulders of the pile when by the above described action the pile receives another blow, and so rapid 1s the recurrence of' these blows,V that they can be dealt out on the head of the pile at the rate of upward of 80 per minute. The valve can be worked by the apparatus now in use for direct action steam hammers or in any other way.

A third feature of my invention consists in the manner in which I cause the pile, while it is being driven, to become as it were part and parcel of the machine. This I effect by erecting an upright pole or stanchion (Gr) on the platform on which the boiler rests at one side which pole is braced by Vguy chains or ropes, and on which are aiiixed plates of iron forthe guide pieces (F, F)k

to slide that connectv the cylinder &c to the enabled to convey the steam from the boiler `v II to the cylinder A at whatever position thev cylinder A may be with respect to the boiler.- This jointed steam pipe is seen in Fig. l and marked I I I, the joints and lengths into which the pipes are divided permit them to fold up length by length according to the relative position of the apparatus A B C and the boiler H. The joints should not be f less than three in number and are made somewhat similar to gas fittings so as to beY steam tight and turn freely in their sockets. These then are the principal features of novelty which in combination I claim as my invention applied to and used for the aforei said purpose of driving piles. y l d What I claim as my invention, and desire 3. I claim the combination of the movto secure by Letters Patent isable engine with the boiler by means of l. The employment of the pile to be jointed steam pipes capable of accommodatdrven, as the foundation or base onfvvhich ing themselves to the varying position of the 5 to rest my pile driving apparatus. machine during the descent of the pile, sub- 15 2. The manner in Which I` secure and. 1stantially asherein described. guide the pile in its descent by its tempo- JAMES NASMYTH. rary attachment to, or connectiony with theM4 Witnesses: driving apparatus, and upright frame Work l ELLIS CUNLEFE,

PRIESTLEY BIRCH. A

L0 of the machine, and.

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