baber/WOPTO huggingface dataset:
Patent GB-1146110-A (GB)
Title: 5h-dibenzo[a,d]cycloheptene derivatives
Inventor: RUSSEL JEFF HAMISH
IPC: C07D471/08
Filed: 1967-04-13
Abstract: 1,146,110. 5H-Dibenzo[a,d]cycloheptenes. DR. A. WANDER S.A. 13 April, 1967 [22 April, 1966], No. 16971/67. Heading C2C. Novel compounds of the general formula (and acid addition salts thereof), wherein R 1  is hydrogen or alkyl, R 2  is alkyl, alkenyl or alkynyl, R 3  is alkyl and one of R 4  and R 5  represents hydrogen, the other representing hydrogen or halogen or alkyl, are prepared: (i) by cleaving a quaternized N - alkyl - 5,11 - methyleneimino- 10,11 - dihydro - 5H - dibenzo[a,d]cycloheptene; (ii) by alkylating, alkenylating or alkynylating compounds corresponding to those illustrated above in which R 3  is hydrogen and R 2  is hydrogen, alkyl, alkenyl or alkynyl; or (iii) by the interaction of an amine, NHR 2 R 3 , and, for example, the appropriate 5-halomethyl - 5H - dibenzo[a,d]cycloheptene (the latter reactant may be replaced by corresponding compounds containing ester groups in place of the halo atom). Therapeutic compositions showing anticonvulsant activity contain as the active ingredient the above novel compounds and may be administered enterally or parenterally.
Patent GB-573997-A (GB)
Title: Means for controlling the flow of sand or other granular material from a hopper or like container
IPC: B65D90/58
Filed: 1943-10-15
Abstract: 573,997. Hoppers. PNEULEC, Ltd., and COWLAM, K. W. Oct. 15, 1943, No. 17020. [Class 78 (i)] The flow of granular material from a hopper is controlled by a discharge neck of rectangular cross-section having at its lower end a two-part gate consisting of two oppositely moving co-operating plates which are operated simultaneously by a lever. The arcuate plates 13, 14 which form the gate, are attached to arms 15, 18 which are supported by pivot pins 17, 20 mounted in lugs on the frame of the rectangular sheet metal neck 10. An arm 21 keyed on the pin 20 is coupled by a link 23 to an arm 24 free on the shaft 17 and by a link 22 to a plate 16 attached to the arm 15. Operating handles 25 are keyed to the shafts 17. The effective area of the neck is altered by adjusting the position of transverse plates 11. Inclined downwardly extending plates 12 close the gaps between the bottom of the neck and the plates 13, 14. In a modification the arms 15, 18 are provided with overlapping slots extending substantially at right angles to each other and receiving a stud on the operating handle.
Patent GB-936181-A (GB)
Title: Improvements in and relating to solid-state electrical devices
Inventor: WRIGHT GORDON THOMAS
IPC: H01L23/482
Filed: 1959-05-19
Abstract: 936,181. Semi-conductor devices. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 19, 1960 [May 19, 1959], No. 17023/59. Class 37. An electrode of a solid state electrical device including a crystalline body with a steep sided groove in its surface is formed by vacuum evaporation or sputtering electrode material in such a way as to deposit it preferentially on the base of the groove. A three electrode space charge limited current device of the general type disclosed in Specification 906,030 is made by the following steps. An ohmic cathode connection 11 (Fig. 1) is first made to one face of an insulating cadmium sulphide crystal 5 x 10<SP>-3</SP> cm. thick by soldering a metal contact thereto with an indium solder at 320 C. in air using a resin flux. As an alternative a layer of gold or silver 10<SP>-5</SP> cm. thick, and a layer of indium 10<SP>-4</SP> cm. thick are successively vacuum evaporated on the surface and then heated at 310- 330 C. for a few minutes. A comb-shaped grid of aluminium forming an anode is next evaporated through a mask on to the opposite face of the crystal. After etching the crystal surface to form a comb-shaped groove interdigitated with the comb-shaped grid aluminium is evaporated on to the grooved surface to provide a comb-shaped control electrode in the groove. Insufficient aluminium is deposited on the walls of the groove to short circuit the anode and control electrodes but if desired the groove walls may be etched to remove the aluminium. After attachment of contact wires to the three electrodes the grooved surface is coated with an insulating layer of zinc sulphide or magnesium fluoride after which the crystal is dipped in paraffin wax and encapsulated.
Patent GB-762413-A (GB)
Title: Improvements in tractor wheel strakes
IPC: B60B15/00
Filed: 1954-06-10
Abstract: 762,413. Tractor wheel attachments. MILLER, R. June 8, 1955 [June 10, 1954], No. 17047/54. Class 144 (1). A strake attachment for tractor wheels comprises a hoop 3 attachable to the wheel and carrying a series equi-circumferentially spaced open-ended sockets 7 into which the shanks 9 of strake arms 10 may be inserted from either end so that the strakes project either operatively radially outwardly beyond the wheel tyre 18, or inoperatively radially inwardly of the wheel, the strake arms being located in the sockets by collars 12 which bear against the respective socket end and bear the load when the strake is in use, and being retained therein by hookended spring-loaded catches 14 which are associated one with each socket 7 and the ends 14a of which engage in registering holes in the socket wall and strake shank. As shown, the hoop 3 comprises two concentric rings, the inner of which has apertured brackets 5 for attachment to the wheel. Each socket 7 has a catch housing 16 welded to one side to house slidably the spring-loaded end 15 of the catch 14. Ground-engaging plates 11 are secured to the outer ends of the arms 10.
Patent GB-908520-A (GB)
Title: Mine haulage vehicle
IPC: B60P1/02
Filed: 1959-05-20
Abstract: 908,520. Mine shuttle cars. JOY MANUFACTURING CO. May 20, 1959 [June 9, 1958], No. 17098/59. Addition to 894,065. Class 78 (4). [Also in Group XXXII] The mine haulage vehicle claimed in the parent Specification is modified by the provision of means, associated with the vehicle wheels suspension device and operable by remote control, for elevating and lowering the end portion of the vehicle body relative to the wheels at at least one end of the vehicle. As shown in Fig. 3, the steering-wheels 9 at each end of the vehicle are supported on links 17, 18, which are pivotally mounted at 24, 22 respectively, on the body 1. Arms 33 integral with links 17, are connected by a roller chain 31, and a doubleacting hydraulic ram 36, 37, slidable in guides 34 and forming a link of the chain 31, is provided, which, on extension under the action of control means 41, Fig. 2, lowers the body section 1 with respect to the wheels 9. In a modification, Fig. 6 (not shown), the hydraulic ram 36, 37 is replaced by a pair of rams pivoted between the links 18 and links pivoted to the body. In further modifications, Figs. 9, 12 (not shown), hydraulic rams are pivoted between a transverse axle, pivoted to the body, and wheel supports, pivoted to the axle. The vehicle is also provided with wheels 10 driven by motors 11.
Patent GB-713379-A (GB)
Title: Steroids
IPC: C07J5/00
Filed: 1952-07-08
Abstract: The invention comprises allopregnane- and n-pregnane-3,7,20-triones and their preparation by reacting an allopregnane- and n-pregnane-3,7-diol-20-one respectively with an oxidizing agent, e.g. chromic acid or chromium trioxide, potassium permanganate and N-bromacetamide in t-butanol.  Examples are given.
Patent GB-889939-A (GB)
Title: Improvements in pot burners
IPC: F23D5/00
Filed: 1960-05-16
Abstract: 889,939. Pot burners. STRUIJK, A. A. May 16, 1960 [May 20, 1959], No. 17163/60. Class 75(1) A pot burner has a diamond-shaped crosssection and has air inlets 15, 20, 22 in the upwardly diverging lower side walls and further air inlets 24 in two upstanding walls 6 forming a flame outlet 5 at the ends of the upwardly converging upper side wall 4. The pot may be circular or oblong in plan. The lower side walls are stepped and support a lower baffle having upwardly converging side walls 13 leading to an opening 14 and an upper dome shaped baffle 17 having an opening 18 wider than the opening 14. The air inlets 15, 20 direct the air to points just below the openings 14, 18. The air inlets 22 direct the air to a point just below the flame outlet 5. The air inlets 24 are arranged alternately in the upstanding walls 6 and are directed upwardly at a small angle. Further air inlets directed at a greater angle may be provided between the inlets 24. The inlets 24 may be closed by valves 25. The burner is enclosed in an air jacket 26.
Patent GB-1425748-A (GB)
Title: Degaussing device for colour cathode ray tubes
IPC: H01J29/00
Filed: 1973-04-10
Abstract: 1425748 Clips TOKYO SHIBAURA ELECTRIC CO Ltd 10 April 1973 [14 April 1972 (2) 17 June 1972] 17165/73 Heading E2B [Also in Divisions H1 and H4] Clips for supporting electrical cables, specifically the degaussing coils surrounding the picture tube of a colour television receiver [Division H4], comprises channel shaped members 40 and 50 Figs. 14, 15 formed from synthetic resin, the former 40 supporting two cables 11, 12 and being itself supported by screws 42 engaging the receiver cabinet and the latter 50 supporting one of the cables and being itself supported by rod-like members secured to the cabinet and inserted in the cylindrical part 51.
Patent GB-1311935-A (GB)
Title: Floating hulls
IPC: B63B1/38
Filed: 1970-04-10
Abstract: 1311935 Hull form L ROUMEJON 10 April 1970 [18 April 1969 10 March 1970] 17166/70 Heading B7A The underside of a hull 1 includes a tunnel 2 of inverted V-shaped transverse section extending towards the after end from a position rearwardly of the forward end. The depth of the tunnel is either constant throughout its length or it decreases continuously towards the after end of the hull, which may be a boat, Fig. 1, a water ski, Fig. 7, a float of a seaplane, Fig. 13 (not shown) or of a hydrofoil.
Patent GB-307670-A (GB)
Title: An improved gas radiator or gas stove
IPC: F24H7/00
Filed: 1928-06-13
Abstract: 307,670. B³ndgens, F., and B³ndgens, L. June 13, 1928. Gas heating-stoves ; heat-retainers; air supply, regulating; sighting interior; atmospheric gas burners. - In a tubular gas-heated radiator the gases pass around or through a heat-storing body b of channel or like form arranged at the lower part above, the burner, a second heat-storing body a, around which the gases flow, being, arranged above the tubes. In the radiator shown, the gases pass through perforations in the body b, and also through a passage d in the body a leading to the flue. Primary air is supplied to the burner through a valve-controlled pipe g to avoid the back-firing which is liable to occur when the air supply aperture is formed in the burner tube. The draught may be regulated by a valve-controlled pipe c which supplies air to the flue. A mirror s facilitates inspection of the gas flames.
Patent GB-1490995-A (GB)
Title: Electric switches
IPC: H01H13/02
Filed: 1974-04-19
Abstract: 1490995 Snap action switches LICON ELECTRONICS Ltd 17 April 1975 [19 April 1974] 17338/74 Heading H1N A gas ignition switch comprises a moulded glass-reinforced nylon housing consisting of a body 1 and a lid 2, a resilient snap-acting frameshaped sheet metal contact member 7 whose base is fixed in the housing and a hollow cylindrical moulded plastics actuating member 14, the member 7 carrying a contact 9 and the actuating member 14 carrying moulded pins 15, 16 which slide in and are guided by slots in opposite sides of a hollow boss 13 integral with the body 1 and which press against member 7 to snap contact 9 away from a stop (39, Fig. 3, not shown) integral with lid 2 and into contact with a fixed contact 10, member 7 being pre-stressed by integral tongues 11, 12 whose ends press against abutments 30, 31 on the boss 13. In the embodiment shown the member 14 is trapped behind a circlip 45 on the spindle 2 and is actuated by depressing the control knob 43, while in a further embodiment (not shown) the member 14 is depressed by a cam when the control knob is rotated.
Patent GB-378138-A (GB)
Title: Improvements in or relating to toy rowing boats on wheels
IPC: B62M1/14
Filed: 1931-06-15
Abstract: 378,138. Hand-propelled vehicles. LESTER, A. W., 34, St. Leonards Road, Hove, Sussex. June 15, 1931, No. 17343. [Classes 136 (i) and 136 (ii).] In a toy-vehicle resembling a rowing boat and carried on two rear driving wheels 5 and one front steering wheel 41, the operator is seated at 31 facing the direction of travel and propels the vehicle by means of a hand-lever 27 at each side pivoted in the base and connected through toothed wheels 25, 13 to an oscillating lever 15, the free-wheel end of which is connected to a reciprocating chain 19 engaging a free-wheel sprocket 21 on the corresponding rear wheel 5, the return movement of each chain being effected by a tension spring 23. The front wheel 41 is steered by means of pedals 53 connected to cross arms 51 on a vertical pillar 43, the wheel being under the control of a centralizing tension spring 47 connected to a rearwardly extending arm 45 on the pillar 43.
Patent GB-704562-A (GB)
Title: Improvements in or relating to public service vehicles
Inventor: OTTAWAY ERIC CARLTON
IPC: B60K11/04
Filed: 1951-07-23
Abstract: 704,562. Mounting radiators. BRITISH TRANSPORT COMMISSION. July 15, 1952 [July 23, 1951], No. 17419/51. Class 79(3) [Also in Groups X and XIII] In a public-service vehicle having the engine mounted in front of, and a radiator 26 mounted underneath, the passenger compartment (not shown), the radiator 26 is enclosed in a cowling 27 having a fan 29 at its forward end. The outlet 33 of the engine water jacket is connected by a thermostatically-controlled two-way valve 34, either to a header tank 36, or to the inlet of a pump 19. The inlet to the pump 19 is also connected to the radiator 26 by a pipe 42. The pump 19 outlet is connected by pipe 43 to the waterjacket inlet 44. When the engine is cold the tank 36 and radiator are thus by-passed. The pump 19 is belt-driven from the engine crankshaft. The fan in the housing 29 is also belt-driven from the crankshaft via a universally-jointed shaft (not shown). The air outlet from the cowling 27 may be ducted to the vehicle body. Alternatively, air, free from dust, fumes, &c. may be ducted from an elevated inlet in the vehicle body to the rear end of the cowling. Warm air is then ducted from the fan to suitable inlets in the vehicle body.
Patent GB-404975-A (GB)
Title: Improvements relating to the production of penta-erythrite
IPC: C07C31/24
Filed: 1932-06-21
Abstract: In the preparation of penta-erythrite by the alkaline condensation of formaldehyde with acetaldehyde, the reaction is interrupted just before the point at which there is a minimum of reducing substances present, thereby securing the maximum yield. Test samples are taken at intervals and the amount of reducing substances present, viz. unreacted aldehydes and intermediate or bye-products of reducing character, is estimated by titration with Fehling's solution or silver hydroxide solution or electrometrically.  When the minimum is approached, the condensation, which has been proceeding at a temperature below 60 DEG  C., is interrupted by lowering the temperature to below 20 DEG  C. and by removing or neutralising the alkaline condensing agent.  If desired, the condensation may first be slowed down by lowering the temperature and then interrupted by elimination of the alkaline agent.  In a modification of the process, smaller amounts of the alkaline agents are employed than the equivalent quantity, e.g. 85--90 per cent of the calculated amount. The process may be operated continuously or discontinuously, and an apparatus is described for the continuous operation.  Examples are given, in which caustic soda and lime are employed as the alkaline agent and yields of nearly 80 per cent of the theoretical are obtained.
Patent GB-820125-A (GB)
Title: Process for the manufacture of benzonitrile
Filed: 1956-06-06
Abstract: Benzonitrile is manufactured by a continuous process, wherein an aromatic hydrocarbon capable of yielding phthalic anhydride by oxidation is subjected in the vapour phase to catalytic oxidation with air, and the oxidation product so obtained, and without being cooled or isolated, is converted in the vapour phase by reaction with ammonia in the presence of a dehydration catalyst into benzonitrile. Suitable aromatic hydrocarbons are naphthalene and ortho-xylene, and suitable catalysts for the oxidation step are vanadium pentoxide supported on e.g. silica gel, or alumina, to which phosphorus pentoxide, potassium hydrogen sulphate or potassium sulphate may be added.  Suitable dehydration catalysts are aluminium oxide or silica gel.  The process may be carried out by preheating a gaseous mixture of air and naphthalene in a ratio within the range 20:1 to 50:1 at a temperature up to 350 DEG  C. and passing the mixture at a space velocity within the range of 500-4000 parts by volume per volume of catalyst per hour, over the catalyst heated at 300-500 DEG  C.  At least 1 mol. of ammonia per mol. of naphthalene is then added and the gaseous mixture is then passed at a space velocity of 100-1000 volumes per volume of catalyst per hour over e.g. silica gel, and is heated at 360 DEG  to 500 DEG  C.  Examples are given of the preparation of benzonitrile from (1) naphthalene with a catalyst of vanadium pentoxide, potassium sulphate and silica gel mixture, for the oxidation step, and silica gel of bulk density 0.4 for the dehydration step; (2) ortho xylene with a catalyst of vanadium pentoxide on pumice; (3) naphthalene with active alumina as the dehydration catalyst.
Patent GB-353996-A (GB)
Title: Improvements in means for utilising the waste heat of internal combustion engines for cooking and like purposes
IPC: F01N5/00
Filed: 1930-06-07
Abstract: 353,996. Cooking by the waste heat of internal-combustion engines. DAVEY, W. L., 678, Elizabeth Street, Melbourne, Australia. June 7, 1930, No. 17730. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 3, 1930.] [Class 28 (i).] The heat of the exhaust gases of a motor car engine is utilized for cooking or heating. liquids, the exhaust manifold being formed with heat - conducting ex tensions arranged to form the walls of, or a support for, a receptacle within which the cooking is effected. As shown in Figs. 2 and 3, a detachable receptacle is used which may be divided by a vertical partition into a boiler having a filling opening, and an oven having a removable door. In Fig. 2, the extensions 31, 32 of the exhaust manifold 6 are solid whereby the receptacle 2 is heated by conduction only. In Fig. 3, the extensions are hollow to permit the exhaust gases to heat the sides of the receptacle 2. The recess 38 is engaged by a tongue on the front upstanding wall extension of the manifold, and a similar recess is provided at the rear of the receptacle. The receptacle is clamped to the side walls by a set-screw and a draw-off tap for the boiler is accommodated in a slot in one of the walls. A space 37, which may be filled with insulating material, may be left between the walls 32 and the cooking vessel. The Specification as open to inspection under Sect. 91 (3) (a) states also that a combined water heater 2 and oven 3, Fig. 3 (Cancelled), is secured by a strap 14 to the exhaust manifold 6, the bottom being grooved to fit over the pipe. The food container 21 is similarly grooved to fit the bottom of the oven and is pressed down by a spring interposed between the lid and the oven door 8. The filler cap 9 is vented, and a drain plug 12 is provided. This subject-matter does not appear in the Specification as accepted.
Patent GB-152137-A (GB)
Title: Improvements in riddles
IPC: F24B15/00
Filed: 1919-07-16
Abstract: 152,137. Frost, A. July 16, 1919. Hand sieves.-A hand sieve or riddle comprises a frame a of sheet metal, preferably steel, bent to form an inwardly projecting flange c to support a wire mesh or screen b, which is removably secured in place by bolts d, screws, rivets, &c. The screen may be provided with a wire ring e to keep its strands in position. The lower edge of the frame may be bent inwards at two or more points to form gaps for the hands of the user. In another construction, the frame a is formed of two angle rings on or between which the screen is arranged.
Patent GB-457051-A (GB)
Title: Improvements in or relating to marine-craft
IPC: B63H25/38
Filed: 1935-06-20
Abstract: 457,051. Rudders. PAINE, H. SCOTT-, c/o British Power Boat Co., Hythe, Southampton. June 20, 1935, No. 17751. [Class 114] In boats having multiple rudders they are connected so that the rudders move unequally but appropriate to the radii of their respective turning circles. Rudders 11, 12, 13 are mounted at the stern and coupled by rods 17, 18 to steering arms 14, 15, 16 which are disposed at slight angles to each other analogous to the Ackerman steering employed on motor cars, the set being operated by levers 19 and a steering rod 20. In an alternative construction, the levers operate through a slot mechanism so that on operating the steering gear the first rudder to turn is the inner rudder and after a lag movement is imparted successively to the other rudders. In place of the pin-and-slot mechanism, the lost-motion device may be included in a cable-operated system of which the drums have a lost-motion connection with the steering shaft.
Patent GB-458437-A (GB)
Title: Improvements in and relating to calcium sulphate plasters
IPC: C04B22/16
Filed: 1935-06-20
Abstract: The setting of calcium sulphate hemihydrate plasters is retarded by incorporating therein a soluble substance obtained by fusing one or more metaphosphates of the alkali metals or ammonium with one or more pyrophosphates of the alkali metals, alkaline earth metals or ammonium.  Alternatively a mixture of mono- and dihydrogen orthophosphates may be used as the starting material, these being converted by heat into meta and pyrophosphates.  The relative proportions of metaphosphate and pyrophosphate used may be varied within wide limits.ALSO:The setting of calcium sulphate hemihydrate plasters is retarded by incorporating therein a soluble substance obtained by fusing one or more metaphosphates of the alkali metals or ammonium with one or more pyrophosphates of the alkali metals, alkaline earth metals or ammonium.  Alternatively, a mixture of mono- and dihydrogen orthophosphates may be used as the starting material, these being converted by heat into meta and pyrophosphates.  The relative proportions of metaphosphate and pyrophosphate used may be varied within wide limits.  The substance may be ground and mixed with the plaster or dissolved in the water used to gauge the plaster. Examples refer to the addition of 0,05-0,3 parts of retarder to 100 parts by weight of calcium sulphate plaster.  The hemihydrate plaster may be mixed with anhydrite in which case at least one salt capable of accelerating the setting of the anhydrite, e.g. zinc or potassium sulphate, may be incorporated in the mix.
Patent GB-794125-A (GB)
Title: Fuel container
Inventor: LOCKE WALTER FREDERICK
IPC: B60K15/03
Filed: 1955-06-20
Abstract: 794,125. Fuel containers. FIREPROOF TANKS, Ltd. Aug. 29, 1956 [June 20, 1955], No. 17791/55. Class 69 (1). [Also in Group XXVIII] A container for liquid fuel, particularly adapted for use as an aircraft fuel tank, comprises a bag 1 of flexible material attached to the mouth of a rigid socket 6 which encloses half of the bag 1 when the latter is full, as shown, the socket having an inlet 7 for air or compressed gas and a vent 8, and the bag having a fuel inlet 2 and outlet 3. A vent 4 may also be provided for the bag 1, and apertured guards 5 and 9 prevent the bag 1 closing the fuel outlet 3 and air inlet 7 respectively.
Patent GB-725407-A (GB)
Title: Mixtures of polyvinyl acetal resins with chloroprene synthetic rubber
IPC: C08L29/14
Filed: 1953-06-29
Abstract: A gum plastic mixture comprises 5-15 per cent polychloroprene and 95-85 per cent of a polyvinyl acetal resin of at least 75 per cent ester replacement.  Specified acetals are the formal and butyral. The mixtures may be used to make gears, cams, bobbins, shuttles, pickers, tote boxes, phonograph records, steering wheels, roller skate wheels, printing plates and die-cutting blocks.