baber/WOPTO huggingface dataset:
Patent GB-254914-A (GB)
Title: Improvements in or relating to oil-cooled electric transformers
IPC: H01F27/12
Filed: 1925-09-22
Abstract: 254,914. British Electric Transformer Co., Ltd., and Roothaan, J. Sept. 22, 1925. Transformers.-In an oil-cooled transformer having cooling tubes b external to the casing, the tubes are provided internally with ducts c through which a cooling medium is caused to flow in order to cool the oil circulating through the tubes. As shown in Fig. 4, each tube b is provided with headers d, e connected by the ducts c and provided respectively with inlets and outlets d', e<1> for water which passes along the ducts in a direction opposite to that of the oil entering the tube b at b<1> and leaving at b<2>. The ducts are secured to end plates c', c<2>, the latter of which is adapted to slide in a liquid-tight manner to allow for expansion and contraction of the ducts. The header d is provided with a removable cover g to afford access to the ducts, the cover being provided with a hole d<2> to receive a drain cock. Holes b<3>, e<3> for receiving air cocks are provided respectively in the tube b and header e, and the latter is also provided with a hole e<2> for a thermometer.
Patent GB-599111-A (GB)
Title: Improvements in apparatus for casting stereotyped printing plates
IPC: B41D3/04
Filed: 1945-09-13
Abstract: 599,111. Stereotype casting. GOSS PRINTING PRESS CO., Ltd. Sept. 13, 1945, No. 23679. Convention date, Sept. 15, 1944. [Class 100 (ii)] In stereotype casting apparatus comprising a casting chamber 5 formed by a relatively movable core 3 and drag 4 and in which suction is applied to the back of a matrix 12 to hold it firmly in position and to withdraw air and gases therefrom, a metal feed chamber 28 is provided whereby molten metal may be applied to the upper part of the chamber 5, and a suction chamber 29 also communicates with the upper part of the casting chamber and at a point above the matrix 12 for evacuating air and gases from the chamber while metal is being delivered thereto : suction may also be applied to the back of the core. The casting-box shown is of the type in which the core 3 is stationary and the drag 4 is mounted for swing- ing and sliding movement between a vertical closed position and an horizontal open position. Perforations 8, 8<1>, in the core and drag respectively extend into suction chambers 6, 9, whereby suction is applied to an insulating backing-sheet 11 and the matrix 12, the vacuum in the chamber 29 being less than that behind the matrix. Metal pumped from a pot 46 passes through conduits 66, 67, to the chamber 28 and then via a throat 23 to the casting chamber 5, the suction chamber 29 also communicating with the chamber 5 through the same throat. A feed and suction head 13 is provided comprising a base 14 and top section 15 removably mounted on top of the core 3, the base being recessed to fit on the core and having a bevelled edge 17 to grip the top of the sheet 11: studs 18 on the core engage holes in the base 14 to prevent horizontal movement of the latter. The head 13 can be raised to allow the sheet 11 to be removed, by turning a lever 21 fixed to one of two eccentric shafts 19 linked together: a split metal ring 69 seals the junction between the conduit 67 and. the head 13. Valves in pipe lines to the suction chambers are operated by levers 43-46. The melting-pot 46 is heated electrically and has two pumps each comprising a plunger 50 reciprocated from a lever 59 rocked from an adjustable-throw crank driven by gearing from a motor 53 : a switch 65 is provided for stopping the motor automatically at the end of every cycle. The gears determine the pouring time which is from 3 to 10 seconds. Ports 52 in the cylinder walls admit metal at an angle to cause agitation of the metal as it is introduced so that the constituents are throughly mixed and to liberate air and gases. A chamber 9' is provided in the drag for cooling- water or an electric heater 34<1>, and an electric heater 34 is provided in the chamber 29.
Patent GB-533647-A (GB)
Title: Improvements in or relating to valves
IPC: F16K1/46
Filed: 1939-08-17
Abstract: 533,647. Making valves. BABCOCK & WILCOX, Ltd., and GIBSON, J. H. Aug. 17, 1939, No. 23769. [Classes 83 (ii) and 83 (iv)] Uniting by fusion.-A valve such as a parallel slide valve, stop valve or safety valve comprises a carrier on which is mounted a ring formed or adapted to be formed with a valve seat or face, the ring and carrier being formed with adjacent annular lips which are united to form a seal weld that may be ground off when the ring is to be removed. A parallel slide valve is provided with seats 2, 3 secured by screwed rings 8, 9 in recesses in the body 1 and has circular faces 12, 13 formed by welding of metal of high resistance to wear, such as that sold under the Registered Trade Mark " Stellite." With the faces 12, 13 engage annular faces 14, 15 of face rings 16, 17, which are carried by spring-pressed valve discs 18, 19. The rings, which have "Stellite" deposited on their faces 14, 15 by welding, are each provided with an annular projection 30 making a press fit with the annular recess 26 in the valve disc and having a surface 29 fitting on the annular surface 27. The disc and ring are formed with annular lips 31, 33 which are seal welded to prevent leakage of fluid beneath the rings. The valve faces are finally ground and lapped on the wear resisting metal. In the case of a stop valve having a lid 55 provided with a spigot 54 slidable in guides 53 in the valve seat carrier 52, the carrier and lid are recessed to receive the seating 60 and face ring 65 respectively, the parts being provided with annular lips 61, 62, 66, 67 which are welded together respectively at 63 and 68. The ring 65 has an oblique annular face 70 formed of metal highly resistant to wear engaging a similar valve seat 69 on the ring 60. In either form new rings may be provided after first grinding off the seal weld.
Patent GB-1044734-A (GB)
Title: Optically sensitized photographic silver halide emulsions
Inventor: GOTZE JOHANNES
IPC: C09B23/06
Filed: 1964-06-09
Abstract: The invention relates to cyanine dyes of the formula <FORM:1044734/C4-C5/1> wherein R1 represents alkyl; y represents sulphur or selenium; A represents an alkyl radical where y stands for selenium and A represents an alkyl or b -hydroxypropyl-g -sulphonic acid group which may be in salt form, e.g. an alkali metal or ammonium salt where y stands for sulphur, and in which the fused benzene rings can be substituted, e.g. with an alkyl, alkoxy halogen, phenyl, cyclohexyl, phenylalkyl, thienyl or 5,6-dioxy methylene substituent or have an additional benzene ring fused thereon, which are prepared by the usual methods from heterocyclic quaternary ammonium salts of the formula <FORM:1044734/C4-C5/2> and their appropriately substituted derivatives.ALSO:Compounds of the formula <FORM:1044734/C2/1> wherein the fused benzene ring may contain 5-methyl; 6-methyl; 5-methoxy; 6-methoxy; 5,6-dimethyl; or 5-chloro substituents are prepared by reacting 3-chloro-2-hydroxy propane sulphonic acid with the appropriately substituted benzothiazole. These compounds are used to prepare cyanine dyes (see Division C4).
Patent GB-282509-A (GB)
Title: Improvements in or relating to coin-slot apparatus chiefly for controlling electric supply
IPC: G07F15/12
Filed: 1926-09-28
Abstract: 282,509. Hornby, H., and Wratten, E. H. Sept. 28, 1926. Electricity, supplying by time controlled apparatus; collecting hire - purchase payments; price - change mechanism. - In an electric supply system, in which after a definite predetermined period the current is cut off automatically, a coin slot apparatus is provided for determining the period of supply and receiving payment solely for such period without collecting any payments for energy consumed, in combination with a meter for ascertaining the consumption. The arrangement serves as a collecting box for weekly or other instalments, where the wiring has been done, or a vacuum cleaner or other appliance installed, on the hire purchase system. The consumer's mains d<1>, Fig. 1, are connected to supply mains D and are provided with a consumption meter d and a coin-controlled switch f which is opened after a predetermined time by a constant speed motor a or by a clookwork. The disc motor a is such as is used in electric meters, b, b being the driving magnets and c the brake magnet. To keep its speed constant the exciting coils of the magnets b, c are connected in shunt across the mains d<1>. The motor a through reducing gear j, j<1>, j<2>, of which j<1>, j<2> are change wheels, and a pinion h<4> drives one sun wheel h, Fig. 2, of an epicyclic gearing h, h<1>, h<2>, the planet wheel h<2> rotating a shaft e<1> which carries a switch controlling cam e. When a coin is inserted in a slot f<1> and the handle f<2> turned, the switch f is held closed against the action of a spring f<5> by a tail f<4> engaging the cam e which has been advanced by the rotation of the sunwheel h<1> from a coin drum i through gearing i<1>. The cam e is returned to open the switch by the motor a. For direct current working the disc a may be replaced by one having a suitable winding of known kind and a three-part commutator, the operating current being supplied by a dry cell or by tapping a section of one of the mains. When clockwork is used it is rewound by the opening of the switch or by turning the handle f<2>, and is started by closing the switch. The apparatus may be made to collect arrears of payments by being arranged to remain in circuit when the switch is opened. Indicators.-The, spindle e<1> is provided with a pointer e<3> working over a dial visible through a window f<3>.
Patent GB-1418055-A (GB)
Title: Pump volute assembly
IPC: F04D29/42
Filed: 1973-05-18
Abstract: 1418055 Centrifugal pumps SAUNIER DUVAL SA 18 May 1973 [18 May 1972]  23945/73 Heading F1C Two pump casing members 10, 15 defining a pump volute and formed of plastics material are received within a ring 6 which rigidly connects them between a driving motor 2 and a pump inlet 31. The member 15 has a rim 16 which fits within a flange 13 of the member 10. The inlet 31 is integral with the casing 3 of a purging and degassing arrangement. The members 10, 15 and the casing 3 are clamped together and against the end-plate 21 of the motor 2 by means of the ring 6 which is secured to the motor by screws. The impeller 4 is located by rings 14, 18 and has a grooved bore for engagement with the motor shaft 20.
Patent GB-134199-A (GB)
Title: Improved Gearing for Transmitting Rotary Motion Between Two Shafts, either of which may Drive the other.
Inventor: CHASSIN MARIUS
IPC: F16H3/00
Filed: 1919-09-30
Abstract: 134,199. Chassin, M. Oct. 23, 1918, [Convention date]. Motors, gearing for.-Shafts a, b are connected by gearing so that either shaft can drive the other, the speed-ratios in the two cases being different. Gears d, c of different sizes secured to the shaft a mesh with gears c, f loose upon the shaft b and connected thereto by oppositely-directed ratchet clutches g, h When the shaft a drives in the direction of the arrow, the shaft b is driven through the train d, e, g. If the shaft b accelerates so as to become the driver, as in the case of an electrically-driven vehicle going downhill, the shaft a is driven through the train h, f, c.
Patent GB-1120671-A (GB)
Title: Control apparatus for a variable pitch marine propeller
Inventor: STRANKS PERCY
IPC: B63H3/10
Filed: 1965-06-04
Abstract: 1,120,671. Variable-pitch marine-propellers. BLOCTUBE CONTROLS Ltd. 23 May, 1966 [4 June, 1965], No. 23990/65. Heading B7V. Pitch-control apparatus for a variable-pitch marine-propeller 2 that is driven by a diesel engine 1 comprises a control pedestal 3 carrying an engine-speed control-lever (4), Fig. 2 (not shown), and a propeller-pitch control-lever 5, the apparatus being such that when the engine is overloaded the propeller pitch is automatically reduced enough to remove the overload. In this apparatus a propeller-pitch control-unit 33 is pneumatically operated to effect a change of pitch in response to movement of the lever 5 from its neutral position (as shown) in a direction A or B according to the desired direction of propulsive action, i.e. ahead or astern, displacement of the lever being communicated to said unit accordingly by compressed-air lines 30, 31 and an air-operated valve 6 or 7 that is regulated by a cam unit 20 coupled to the lever. The cam unit also regulates further valves 8, 9 in air lines 34 connected to pneumatically-operated piston- and-cylinder units 13, 14 that are attached to slotted links 11, 12 respectively, the said links being engaged by a member 10 connected to the lever 5. When the lever 5 is displaced from its neutral position one or other of the valves 8, 9 is opened accordingly to admit atmospheric air to the corresponding unit 13 or 14 so that compressed air supplied thereto through an air line 40 and a pressure-reducing valve 41 renders the unit in a retracted condition (as shown). If the engine becomes overloaded a so-called fuel rack 16 associated therewith causes a valve 15 to admit compressed air to the lines 34 through an air-line 21 so that the appropriate unit 13 or 14 operates against the action of a dashpot 42 and moves the corresponding slotted link 11 or 12 to shift the member 10 and the lever 5 towards the neutral position. Such movement of the lever 5 effects reduction of the propeller pitch until the rack 16 is moved in response to the reduction of load on the engine and causes the valve 15 to vent the lines 34 to the atmosphere whereby the actuated unit 13 or 14 is restored to its normal retracted condition without altering the new position of the lever 5. The links 11, 12 are such that the lever has complete freedom of movement in either direction when the units 13, 14 are in a retracted condition. The member 10 may be constituted by a rack-and-pinion unit (53); and the unit 20 is connected to the lever 5 by shafting (50), Fig. 3 (not shown), and gearing (51). The valve 15 may be either of the poppet type or solenoid operated, the solenoid being controlled by a switch that is actuated by the rack 16.
Patent GB-646939-A (GB)
Title: Panel material for use in building construction
IPC: E04C2/34
Filed: 1947-09-01
Abstract: 646,939. Compound sheet material. KERR & CO., Inc., A. H. Sept. 1, 1947, No. 24117. Convention date, March 22. [Class 140] [Also in Group X] A building unit of glass fibre impregnated with resin comprises facing sheets 1, 2 spaced apart by braces 3, 4 inclined thereto to provide trapezoidal apertures and inset from the edges of the sheets 1, 2 to provide a peripheral groove.
Patent GB-906257-A (GB)
Title: A surgical appliance for the treatment of tendons and ligaments in the horse
IPC: A61D9/00
Filed: 1960-07-12
Abstract: 906,257. Surgical gaiters. PICKERING, J. P. July 12, 1960, No. 24191/60. Class 81 (2). A surgical gaiter for a horse comprises a pad in the form of a miniature spring-interior mattress, i.e. in which coil springs are arranged with their axes spaced from one another. The pad is secured around the leg by straps 18 and buckles 19.
Patent GB-825954-A (GB)
Title: Improvements in or relating to power operated mobile hoists
Inventor: LUNN RICHARD TURNER
IPC: B66B9/16
Filed: 1956-08-08
Abstract: 825,954. Builders' hoists; safety catch gear; winches. A.C.E. MACHINERY Ltd. Aug. 8, 1957 [Aug. 8, 1956], No. 24315/56. Classes 78 (3) and 78 (5). In a mobile hoist in which a platform 22 is raised and lowered on a vertical mast 1 by a winch 4, the winch and power unit being mounted on a frame 10 provided with road wheels 21 and pivoted at 19 to the base frame 2 of the mast, skids 25 are pivoted at 30 to the base 2 and provide first a fulcrum 26 and then a flat surface in contact with the ground as the mast is raised into its vertical operating position. For the last part of the raising the mast pivots about the end 27 of the skids and the road wheels 21 leave the ground so that the winch and power unit act as counterweights. Jacks 28 support the mast in its operative position and a spring-loaded buffer 29 cushions it while travelling. Safety catch gear.-The lifting cable is anchored to the mast head and passes under a pulley mounted between eccentric plates fixed to a shaft on the platform which also carries a pair of eccentric toothed members adapted to rotate and engage the guide surfaces of the platform rails if the lifting cable becomes slack. Winches.-A trip lever 13 (Figs. 1 and 2, not shown) is provided at the bottom of the mast and its engagement by the platform causes a band brake to be applied to the winding drum.
Patent GB-207636-A (GB)
Title: Improvements in automatic clutches
IPC: F16D11/06
Filed: 1922-09-08
Abstract: 207,636. Sharp, F. C. Sept. 8, 1922. Clutches, claw; operating clutches.-In onerevolution clutches for stamping and punching presses &c., of the type in which a radiallysliding key carried by the driven shaft is spring-pressed to engage a slot in the driving-wheel and is withdrawn by an inclined face on a stop member, the wedge-shaped stop is carried by a revoluble sleeve, which is concentric with the shaft and is rotated in the opposite direction to the driving-wheel to free the key, this sleeve being then returned to its initial position so as to withdraw the key after one complete revolution. The driving-wheel C, carrying a ring M with three slots M<3>, rotates freely on the driven shaft B, which is provided with a radiallysliding key A pressed by a spring A'. A projection of the key A rests on the cam D mounted in a sleeve K and overlaps at the point A<2> a flange K<2> of the sleeve, so that re-engagement of the clutch is prevented should the key be carried by inertia past the nose of the cam. The sleeve K is turned in a clockwise direction to free the key by a spring-pressed pawl E, which engages a notch K' in the sleeve, and is carried on a rocking lever E<1> actuated by a treadle or hand lever. Face cams F, F' on the sleeve K simultaneously coact with fixed rollers F<3>, F<2> to shift the sleeve laterally against springs H<1>, H<2>, so withdrawing the flange K<2> from the part A<2>. Means (not shown) are provided for preventing tilting of the springs H', H<2>. Failing the release of the treadle &c., a cam H' on a member H keyed to the shaft B contacts with a pin (not shown) on the pawl E to raise it from the notch K<1>, whereupon the sleeve is returned by friction with the key A to its initial position, being there retained by a stud G contacting with a fixed stop F'. After the key A has been withdrawn by the cam D, the springs H', H<2> immediately move the flange K<2> under the point A<2>. By removing the stud G and holding the pawl E out of action by contact of its tail E<6> with a pin P, the clutch will drive continuously. During tool-setting, the spindle of the roller F<3> may be engaged in a notch F<5> in the sleeve K. Specification 109,475 is referred to.
Patent GB-1184366-A (GB)
Title: Optical system for use with cameras incorporating photoresponsive means for exposure control
Inventor: HARVEY DONALD MALCOLM
IPC: G03B7/099
Filed: 1967-05-25
Abstract: 1,184,366. Exposure meter acceptance angle control. EASTMAN KODAK CO. May 25, 1967 [May 27, 1966], No. 24383/67. Heading G2A. A camera including a lens 2 and a photoresponsive element 13 for use in automatically adjusting the exposure comprises an optical system for confining the acceptance angle of the photoresponsive element mainly below the horizontal consisting of a cylindrical tube 8 with transparent end-pieces 9 and 10; the inner cylindrical wall of said tube being painted black and being non- reflective; the tube being partially filled with liquid 11 to form an air bubble 12.
Patent GB-1262874-A (GB)
Title: Improvements in or relating to self cleaning filter systems
Inventor: MATTHEWS ROBERT BARRY
IPC: F15C1/00
Filed: 1968-05-23
Abstract: 1,262,874. Filter system. PLESSEY CO. Ltd. 7 May, 1969 [23 May, 1968], No. 24603/ 68. Heading B1D. Flow of fluid from line L to line S is switched by bistable coanda A through each of branches B1 and B2 alternately, each branch including a filter F1, F2 and a reverse flow valve device R1, R2, whereby a proportion of the filtrate fluid from one filter flows across the lower junction and backwashes the other filter, the backwash fluid then being discharged to waste by device R1 or R2 (Figs. 3, 4, not shown). The control jets CP1 and CP2 of coanda A could be controlled manually or by a timer, but as shown they are controlled automatically by pressure build up as the forward flow filter clogs to switch flow to the other filter. Flow restrictors RA and RB are adjusted to determine the point at which switch over occurs. Reference has been directed by the Comptroller to Specification 1,132,431.
Patent GB-719175-A (GB)
Title: Control mechanism for reversible internal combustion engines, in particular for the direct propulsion of ships
IPC: F01L13/02
Filed: 1952-10-01
Abstract: 719,175. Starting and reversing. MASCHINENFABRIK AUGSBURGNURNBERG AKT.-GES. Oct. 1, 1952 [Oct. 22, 1951], No. 24607/52. Class 7(5) In a control mechanism for a reversible engine, a member 4 controlling the position of a fluid-pressure operated reversing gear and hence the direction of running of the engine is temporarily connected to the engine control shaft 1 for rotation therewith during rotation of the latter from the stop to the reverse position. The shaft 1, connected to a hand control wheel 2, has fixed thereto a cam disc 7, Fig. 2, with cams 23, 25 thereon actuating respectively a valve 9 controlling the supply of compressed air to a reversing mechanism 20, 21, Fig. 3, and a valve 10 controlling the supply of compressed air to starting air valves, and has rotatably mounted thereon a cylinder 4 integral with a ratchet wheel 5 co-operating with a pawl 6, Fig. 2, pivoted on the disc 7. The shaft 1 also controls the fuel injection pump through a link 52, Fig. 1, and is provided with an interlocking mechanism consisting of a slotted disc 50, Figs. 1 and 5, co-operating with a second slotted disc 41 controlled by a. link 39 actuated in accordance with the position of the reversing gear. On rotation of the hand. wheel. 2 from the '"stop" position II, Fig. 5, to the "reverse" position I, the cam 23 lifts the valve 9 just before the wheel reaches the position I and the pawl 6 rotates the member 4 one step. Compressed air flows past the valve 9 to a pipe 22, Fig. 3, which is connected by a slot 14 or 15 in the member 4 to one of two liquid filled cylinders 20, 21 whereby liquid is forced through a passage 36 or 37 to one side of a piston 35 to move the engine cam shaft 30 axially to bring a reverse set of cams into operation, the liquid on the. other side of the piston 35 being exhausted into the other cylinder which is connected to atmosphere through a hole 16 or 17 in the member 4. The rotation of the wheel 2 from position II to position I moves the disc 50 so that slots 47, 48 therein coincide with the ring 41 and permit rotation of the: latter by a link 39 during axial movement of the cam-shaft 30, the disc 42 meanwhile holding the disc 50 and hence the handwheel 2 locked until the cam-shaft movement is completed. The wheel 2 is now rotated to the " start" position III, wherein the cam 25 lifts the valve 10 to supply compressed air to the starting valves and the link 52 sets the fuel pump to starting supply, the pawl 6 being lifted off the wheel 5 by a stationary cam 8. After starting, the wheel 2 is rotated. to the " operation " position IV in which the valve 10 is closed and the fuel pump set for the normal operating supply. The subsequent movement of the wheel 2 to the " reverse " position I moves the member 4 to reverse the connections to the cylinders 20, 21 whereby the cam-shaft is moved in the reverse direction. A sprocket 11 is provided on the shaft 1 for remote operation of the device.