184
HYDRAULIC MACHINES ; RAILWAY LOCOMOTIVES, Ac.
[Class V.
by pressure applied in the direction of the length of theshaft. Motiou is communicated from this shaft to themachinery of the crane by means of a drum, which slidesupon it—carried along by the crane - and which displaceseach bracket as it passes it.
Xo. 7G, p. 1146. (Netherlands ). K. Enthoven, theHague , Inventor and Manufacturer. An iron crane for-weighing and lifting, constructed on an ingenious prin-ciple, and of good proportions and workmanship.
No. 411, p.228. James and Co., 24 Leadenhall Street,Manufacturers. A patent weighing crane for raisingheavy goods, and at the same time obtaining their weight.
Xo. 400, p. 227. E. X'. Fourdrinikr, 38 BarclayStreet, Sunderland, Inventor . Patent safety apparatus forpreventing loss of life and property, when a rope or chainbreaks in the shafts of mines. Besides the expedient ofa wedge, acting by its pressure upon a wooden frame toarrest the descent of the cage, as in other contrivancesfor the same purpose, Mr. Fourdrinier ’s machine addsthe security of a grip upon a chain.
X T o. 627, p. 208 (France ). J. M. F. Mehu, Engineerof the Mines of Anzin, X'ord. Model apparatus for theextraction of ores, and for the free and safe ingress andegress of miners to and from the mines. By this contrivanceit is proposed to make the same shaft and engine lift theore and the miners, and work the pumps. A four-sidedvertical frame, extending from the bottom to the mouthof the shaft, serves as a guide to a series of square cages,which are lifted through one stage of the frame by eachascending stroke of the beam of the engine, and pre-vented from descending with the descending stroke by aseries of stops, which, swinging on swivels, are pressedback by the carriages as they pass them, and recovertheir positions by their weight. A similar expedientgives to the shaft which lifts the cages a hold upon eachas it rises, and relaxes it as it descends. The cages aremade by an ingenious contrivance to unload themselves,and to pass from the ascending to the descending frameat the top, and conversely, from the descending to theascending, at the bottom. (Awarded a Prize Medal inClass I.)
Honourable Mention is made of Mr. Daniel Grka-torex(415, p. 230), 9 Desborough Terrace, Harrow Road,Paddington, for his model of an improved hoisting ma-chine for raising and lowering goods, which can be workedby hand or by steam. The person ascending or descend-ing with the machine can stop it at any point of theascent or descent.
Jacks.
No. 509, p. 237. The Jury award a Prize Medal toGeorge England and Co., Hatcham Iron Works, NewCross, for their traversing screw-jack, useful for railwaypurposes, and commended for ingenuity of contrivance,and economy of material and space.
No. 490, pp. 236, 237 (Illustration, 237). Also toS. Thornton and Sons, Birmingham , for their hydrauliclifting-jack, constructed on the principle of the hydraulicpress.
Valves.
N T o. 201, pp. 225, 226. A Prize Medal is awarded forIt. IIosking’s triple-beat valve for large pumps, whichaffords three passages for the water. They are annularand concentric, and, by an adjustment of the weight of theload on each to the surface it offers to the pressure of thewater, are made to open and close in succession, therebydiminishing the first effort of the lift of the piston (dueto the inertia of the water) and the blow on its descent.
Cocks.
Honourable Mention is made of the following:—
No. 476, p. 235. Major Robert Little, WoolwichCommon, Inventor, for an improved water-cock for con-necting pipes without breaking joints. The plug of thiscock may be removed to be re-ground, without unsol-dering the pipes.
No. 1608, p. 1254 (France ). — Frinaclt, Brass-founder, Orleans. Hermetic tap. A cock closed or openedby means of a coarse screw acting upon a valve. A goodand simple contrivance, not likely to get out of order.
SECTION” (E).
England.
i
Medals.
i .
Medals.
Medals.
a
o
Medals.
c
3
•n
Exhibitors
Exhibits.
Council.
Prize.
Exhibitors
3
5?
Council.
Prize.
5?
i
3
Council.
Prize.
K
Council.
No. 1
Railway locomotives—
Inside cylinder — - -
3
3
1
2
j
i
1
1
Outside cylinder — — —
1
0
—
_
: -
_
_
_
_
_
_
_
1
1
_
_
Inside cylinder tank - —
3
3
_
i
l _
_
_
. _
_
_
_
_
_
_
_
Outside cylinder tank- -
3
3
-
2
j -
-
_
_
. _
_
_
-
_
_
_
_
Models — - — — -
14
14
Compressed and hot air -
3
3
Hydraulic — — — -
i
1
No. 2
Common road locomotives -
i
1
No. 3
Railway carriages, waggons—Carriages - - — -
5
5
3
i _
Trucks and Waggons — -
i
i
-
1
_
_
_
_
_
_
_
_
_
_
_
Carriage models — — -
15
15
Waggon models — - -
3
3
N'o. 4
Railway velocipedes — - -
No. 5
Atmospheric railway apparatus
3
3
-
-
1
1
No. 6
Breaks—
Full size - - — - -
Models - - - - -
8
8
No. 7
Buffers, couplings, &c.—
Buffers -----
4
4
Couplings - — — —
3
3
M heels, tires, axles, bearings
19
19
_
5
1 1
1
_
_
_
_
_
_
1
1
__
_
Miscellaneous — — —
i
7
1 -
Total ....
99
100
1
15
2
2
-
-
j-
-
-
-
i 3
3
-