US1291775A - Elevating mechanism of heavy guns. - Google Patents

Description

A T DAWSON an. H 0RNE. ELEVATING MECHANISM OF-HEAVY GUNS.

" APPLICATION FILED MAY-15.1915- Pat ented Jan. 21, 1919.

2 SHEETS-SHEET I.

A. T. DAWSON & J. HORNE. ELEVATING MECHANISM OF HEAVY GUNS.

APPLICATION FILED MAY 15. I915. 1,291,775, Patented Jan. 21,1919.

2 SHEETS-SHEET 2.

I anzmapbm London,

UNITED STATES ARTHUR rnnvon Dawson,

BARROW-IN-FUBNESS,- ENGLAND, ASSIGNORS TO VICKERS LIMITED, OF

WESTMINSTER, LONDON, ENGLAND.

ELEVATING- MECHANISM OF HEAVY GUNS.

Specification of Letters Patent. Patented J an. 21,1919.

Application filed May 15, 1915. Serial m. 28,495.

To all wlwm it may concern:

c it lmown that we, Sir ARTHUR Tnnvon DAWSON, Knight, and JAMES HORNE, both subjects of the King of Great Britain, re-

at Vickers House, Westminster, in the county of England, and Naval Construction Works, Barrow-in-Furness, in the county of Lancaster, England, have invented cersidmg, respectively, Broadway,

'tain new and useful Improvements in or Relating to the Elevating Mechanism of Heavy Guns, specification.

This invention relates to elevating mechanism of the kind in which two hydraulic presses or cylinders are employed, the ends of therams or piston rods of these presses being preferably attached to a slipper connected by links to the elevating bracket or of which the following is a trunnion arm.

According to this invention we provide means whereby the presses can be operated either by liquid under pressure obtained from the hydraulic mains or by liquid supplied by a variable delivery pump, without its being necessary to drain the presses or cylinders in' cha ging from one system to the other.

In order that the said invention may be :learly understood and readily carried into effect we will describe the same more fully with reference to the accompanying drawng, which is a sectional side elevation showng in a more or less diagrammatic manner L constructional form of the invention.

A, A are the two elevating presses and a, a are their rams or piston rods. B is he slipper to which the rams or piston rods re attached, and b is one of the links conlecting the slipper to the elevating bracket r trunnion arm B. C represents the conrol valve of the hydraulic system and D epresents the variable delivery pump riven by an electric motor D".

In the example shown the clylinders A, A re 'oppositel arranged and t eir inner ends re connectedby. pipes a, a", to the control alve C while the outer ends are connected y pipes d, d"; to the variable delivery ump D. V The pipe a has a stoprvalve a ad the pipe 01* has alsimilar" valve 02 lese two -pipes are connected through an- ;her stop valve A. For purposes of disnction we term the last mentioned valve the main stop valve and the other two stop .valves the secondary stop valves. A sim1- lar arrangement of main and secondary stop valves D, d d) is arranged between the pipes (Z, d and between the variable delivery pump and the cylinders. When the hydraulic system of elevating is employed, the main stop valve A 1s closed and the secondary sto valves d d appertaining to the variab e delivery pump are also closed, the other valves remaining open; the liquid (usually oil) in the outer ends of the cylinders A, A" is therefore caused to pass from one cylinder to the other during the'hydraulic elevation of the gun. Gonversely when pressure fluid from the variable delivery pump D is to be employed for elevating the gun, the main stop valve D appertaming to this pump is closed and the secondary valves appertaining to the by draulic system are also closed (the other valves remaining open) so that the fluid in the inner ends of the cylinders is caused to pass from one cylinder to the other during the elevation ofthe gun by the pressure fluid supplied by'the pump D.

It is to be understood that any other suitable arrangement of stop valves for obtalnring the above mentioned results may be employed.

What we claim and desire to secure by Letters Patent of the United States is 1. In the elevating mechanism of ordnance, the combination 'with'two pressure fluid elevating presses, of a variable, delivery pump adapted to supply fluid under pressure to said presses, a pressure fluid main also adapted to supply fluid under pressure to said presses and means whereby pressure fluid obtained from elther of said sources can be used for operating said presses without its being necessary to empty them of the liquid obtained from the other source.

2. In the elevating mechanism of ordnance, the combination withtwo pressure fluid elevating cylinders and their plston rods, of a variable dehvery pump adapted to supply fluid under pressure to' each of said cyhnders, a pressure fluid main also adapted to supply fluid under pressure to each of said cylinders and means whereby pressure fluid obtained from either of sald supplies can be used for operating said mston rods without its being necessary to empty the cylinders of the ressure fluid obtained from the other supp y.

3. .In the elevating mechanism of ordnance, the combination with two pressure fluid elevating cylinders and theirv piston rods, of a var'able delivery pump adapted to supply flui ,under pressure to and to exhaust the fluid from one end of each of said cylinders, a pressure fluid main and an exhausflmain adapted to supply fluid vun 'der pressure to and to exhaust the fluid from the other end of each cylinder, and

stop valves for opening communications between one of said pair of cylinder ends and closing communication between them and the source of supply when the other pair.

of cylinder ends is in use.

4. In the elevating mechanism of ordnance, the combination with the elevating bracket of the gun and two hydraulic presses operating upon said elevating bracket of a. variable delivery pump adapt- I ed to supply liquid under pressure to saidpresses, a hydraulic main also adapted to supply fluid under pressure to said resses and means whereb liquid obtaine from either of said supplies can be used for operati'ng said plresses without its being necessary to empty t em of the liquid obtained from the other supply.

-of a variable delivery pump adapted to supply liquid under pressure to each of said cylinders, a hydraulic main alsp adapted to supply liquid under pressure to each cylinder and means whereby liquid obtained from either of said supplies can be used for operating said piston rods without its being necessary to empty the cylinders of the liquid obtained from the other supplyaxtl 7'. In the elevating mechanism. of ordnance, the combination with theelevating bracket of the un and two oppositely arranged hydraufic cylinders whose piston rods operate upon said elevatin bracket, of a variable delivery. pump a .apted to supply liquid under pressure to' and to exhaust the liquid from one end of each of said cylind exhaust ma' adapted to supply-liquid under pressure to and to exhaust the liquid from the other end of each cylinder and stop valves for opening communication tween one of said pair of cylinder ends and closing communication between them and the source of supply when the'other pair of cylinder ends is m use.

In testimony whereof we atfix dur signatures.

ARTHUR TREVORDAWSON'. JAMES HORNE.

a hydraulic main and an bev

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