US62723A - chatterton - Google Patents

Description

RICHARDV D. CHATTERTON, OF BATH, ENGLAND.

Letters Patent No. 62.723,'0Zate0l .March 5, 1867. l

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Beit known that I, R101-MRD D. CHATTERTON, of Bath, in the county of Somerset, and United Kingdom of .Great Britain and Ireland, have invented a newand improved Mode of Propelling Vessels; and I do hereby declare thc following to be a full, clear-,and exact description of the same, suihcient to enable one skilled in the art to which the invention appertains to make use of it, reference being had to the accompanying drawings forming ya part of this specitication, and in whichl I Figure 1 is a longitudinal vertical section.

Figure 2 is a transverse vertical section.

A pipe or pipes being laid longitudinally through the vessel, below the water line, a steam pump is employed in connection with each to admit the water forward and discharge it aftA Valves are arranged to restrain the flow of water to the desired direction. Forward and abaft each pump arey two sets of valves, opening in different directions, one or the other being brought into use according to 4the desired direction of motion, forward or estern. AThe reversal is performed by simultaneous shifting of the valves, the motion of-the 'pump being centinuous, and the water being discharged in the wake of the vessel. Each pipe' is thus provided with four valved diaphragms, the valves of two opening forward and those 0f the other two aft. The reversal of the direction ofvmotion necessitates the simultaneous motion of all. The respective valves of a given pair are connected by `racks and pinion soas to move in contrary directions, yand the respective pairs are connected by racks and a. spurlwheel, so as to make the operation of'reversal simultaneous forward and abaft the pump.'

.In'the drawings, A A are pipe-s laid longitudinally of the vessel, below the waterline, and as ,they are counterparts, shall describe one alone, merely stating, first, they may discharge alternately, so as to make the'discharge practically continuous; second, they muy be worked in contrary directions, so as to turnthe vessel-g third, one or more may be used at discretion. Communicating witlrthe interior of tubeI A 'isf a pump-chamber, B, in which reciprocates a plunger, C, worked bya steam engine, l), which, having no particular point-sof novelty, I do not desire otherwise to describe than that it has a direct action. The vessel is supposed to be moving in the direction `.of the arrow, fig. 1, which may be considered as the forward direction. The diaphragm Gr is down, and has self-acting valves, g g, which open Vtowards the Vrear,vandV admit water to low :aft through the forward portion of the tube so as tosupply'the pump-chamber on the upward-stroke of the plunger C, the4 water on the rear portion of the pipe A being prevented from coming forward, as the valves in the rliaphragmG do not open in that direction, so that the water only comes in from the front asltlie 4pluger rises.' When the plunger C descends, the valves in diaphragm G are closed. against its passage forward, und ythe valves in diaphragm G open and admitits passage aft. As the pressure in the pipe A meets with vthe resistance of the diaphragm G the vessel is urgedforward,l the water escaping aft to the extent of the displacement of the plunger C, on the familiar principle knownas reaction, and demonstrated in' the turbine water-wheel and other mechanical devices.

The operation in brief may`be described as follows: In the downward stroke of the piston, the self-acting valves in the diaphragm Gr close, thc press/ure against them within being -theu greater than from without, and the ship'7 with its tube yA, and column of water" therein, is urged forward with a force proportionate to said pressure, said pressure being simultaneously and equallycxertbd against the column of watchin tube A, abaft the diaphragm G, which was previously travelling with the ship. ',lhe up-stroke of the piston is e'ected by pressure of the water from the bow (through the forward portion of tube A) opening the valves to admit the requisite fresh supply for the pump-cylinder, and no adverse current is created, as the direction 'of 'the water is from the bow aft, or atleast from that end ofthe vessel which is in the advance at thcy particular time. Again, the cumulative forceofthe descendingpiston is exerted upon the column of water in the rear portion, for the time being, of tube A, which, in 'the character of an eddy, is owing with amomentum equal to that of vthe ship," and not., as with the paddle or screw, upon the outside water, which, relatively to the ship, is passing aft connects by a rack and pinion with the rack of the valved diaphragm H-,se

constantly. The diaphragm? that as the former is raised t 1e latter is lowered; the same is true of the valved diaphragmsG H', and these duplicate sets are moved by the rotation of the shaft I, which rotates the wheel J, and elevates and depresses respectively the racks K K', according to the direction in which it is turned. When the valved diaphragme H H are lowered, G G' live iuised, and the Iwat-e1' flows in the othei' ('irection, :is the plunger 'reciprocates in its chamber, having,l the effect of driving the vessel` asterix, the reversal being ma-fle by a eiuiple -motion of the crank by the oicer oudeek. The reversal may he effected either byv elevating rods attached to' the diaphgrams and moved cog-wheels, as shown inthe drawings, by chains and pulleys, or equivaient devices.

Having` described my invention, what I claim therein as`new, eind desire to secure by Letters Patent, isl. The mmngeme'ntiof the vnlved dinphragms G G', in the tube Aconstructed as des-rihed, and operalted simultaneously by ineens of a. connecting. device of reak and wheel, ol'uequivaleut, for the purpose specified. I

2. The arrangement o' th valves Gr' G', H H', the racks and pinions, and tirev reversing apparatus J K, /f/ or equivalent device, as set forth. 5

/ 3. I claim the combination, 4with the longitudinal tube A,.of the direct-action engine, and pump acting between velved diaphrng'ms, connected for'simultaneeus adjustment and reversal, Substantially as deseitibefl.

' R. D. CllATTERTON.

Witnesses: l

SOION C. KEMON, GEO. W. R'o'iuwmtn.

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