baber/WOPTO huggingface dataset:
Patent GB-1426208-A (GB)
Title: Air filter unit for motor vehicle engines
IPC: F02M35/024
Filed: 1973-05-24
Abstract: 1426208 Air filter LUCAS FILTRI SpA 24 May 1973 [9 June 1972] 24849/73 Heading BIT An air filter for an I.C. engine has a rectangular pleated paper element 8 enclosed in a frame of two complementary plastics pieces of generally C shaped configuration 1a, and 1b provided with interengageable fittings 11 and 12. The element 8 is located between parallel internal flanges 5 and 6; the two end folds are held by resilient flanges 7. A removable "cassette" of filter wad (15, Fig. 1 not shown) may be located above element 8 in a channel under lip 14.
Patent GB-1450852-A (GB)
Title: Hydraulic systems
IPC: E02F3/42
Filed: 1974-06-05
Abstract: 1450852 Shovelling machines J I CASE CO 5 June 1974 [24 Aug 1973] 24892/74 Heading E1F [Also in Division F1]  A circuit, Fig. 2, applicable to a shovelling machine and for ensuring that the demands of the rams and motors shown are met, up to the maximum allowable pressure as predetermined by a prime mover, comprises constant displacement pumps 56, 58 each in separate systems which include respectively motors 20, 72, 34 and 21, 38, 28 and pressure relief valves 120 each of which has a head portion 162 or 182, Fig. 3, exposed to the outlet pressure of one of the pumps and an additional area, 168 or 188, exposed to the outlet pressure of the other pump, so that when the total force on the valves equals the maximum allowable for the system at least one will open. The arrangement ensures that the maximum system pressure is always available for either one motor or to be divided as required between a plurality thereof. The control valves 62, 102 connect the motors in series when more than one is actuated. The relief valves 120 are pilot actuated by adjustable valves 126, 128. As described the circuit is applied to an earthworking machine, Fig. 1, (not shown).
Patent GB-501932-A (GB)
Title: Improvements in the manufacture of ketones
IPC: C07C45/00
Filed: 1937-09-13
Abstract: 501,932. Catalytic production of ketones. STANDARD ALCOHOL CO. Sept. 13, 1937, No. 24921. Convention date, Nov. 7, 1936. [Class 1 (i)] Catalysts for the dehydrogenation of aliphatic secondary alcohols consist of a difficultly reducible catalytic oxide, e.g. of cerium, zinc, magnesium, manganese, chromium, supported on a carrier having a heat conductivity of at least 0À2 and preferably 0À4, e.g. copper, aluminium, brass. The carrier in the form of turnings &c. is coated with an aqueous paste of the catalyst and dried. The dehydrogenation may be effected at 650-750‹F. Specification 359,430 is referred to.
Patent GB-714130-A (GB)
Title: Improvements in automatic electric toasters
IPC: A47J37/08
Filed: 1952-10-06
Abstract: 714,130. Electric toasters. GENERAL ELECTRIC CO. Oct. 6, 1952 [Oct. 5, 1951], No. 24985/52. Class 28(1) In an electric toaster, e.g. as described in Specification 714,129, movement of the toaster carriage from the toasting position to the non-toasting position is retarded by means of a weighted pivoted arm member and a fixed member, one of the members being on the toaster frame and the other on the toaster carriage and one having an undular slot and the other having a guide member, riding in the slot. As shown, Fig. 1, an arm 22 is pivoted on a plate 8 of the toaster carriage and carries a weight 24 and a pin 25 which engages a sinusoidal slot 27 in a post 4 of the toaster frame. In a modification, Fig. 6, a pivoted lever 22a carries a weight 24a and has a sinusoidal slot in which a pin 25a, car ried on the toaster frame, engages.
Patent GB-527694-A (GB)
Title: Improved apparatus for tendering meat
IPC: A22C9/00
Filed: 1939-04-13
Abstract: 527,694. Tendering meat. MOLDAWSKY, J. April 13, 1939, No. 25084/38. [Class 28 (ii)] In a meat-tendering device comprising a knob or handle c carrying a number of thin blades a, the handle is made hollow and completed by a cap d. The blades may be formed in a block and secured to the handle or they may be secured in slots in the handle as by a U-member g. The lower part of the handle may be formed solid and the blades held in slots extending across the lower face thereof. Or plate portions carrying comb-like blades may have slightly greater width than the blades to form shoulders, the plates being held in position by a depending portion of the cap. The cap may have a removable cup member e to take weighting material such as lead. Specification 508,746 is referred to.
Patent GB-1013117-A (GB)
Title: Improvements in or relating to hydraulic jet propulsion motors
IPC: B63H11/00
Filed: 1962-06-29
Abstract: 1,013,117. Hydraulic jet propulsion apparatus. BERLINER MASCHENBAU A.G. June 29, 1962 [July 11, 1962], No. 25100/62. Heading B7V. A marine vessel propulsion apparatus comprises a liquid outlet tube 2, a gas combustion chamber 1 in communication with the tube 2 to eject the liquid from it by impact of the gas on the liquid, a nozzle 6 formed at the outlet of the chamber 1, and a liquid inlet tube surrounding the chamber 1 and formed as a throttle cone 7 at the outlet end, the diameter of the tube 2 being greater than the smallest diameter of the cone 7.
Patent GB-343903-A (GB)
Title: Receiving and amplifying arrangement especially for apparatus with high frequency amplification
IPC: H03F3/02
Filed: 1929-08-19
Abstract: 343,903. Thermionic amplifiers. ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde - Ost, Berlin. Aug. 19, 1929, No. 25212. [Classes 39 (i) and 40 (v).] A cascade arrangement of multi-stage, resistance-coupled high-frequency amplifiers is characterized by the feature that the amplification factor and internal resistance of the final amplifying-stage are different from the corresponding characteristics of the preceding stages. Preferably the amplification factor is at least five times that of the preceding stages. As shown, the multi-electrode stage 26 is followed by a screened-grid stage 27, in which the screening-grid 24 largely embraces the plate 23. The screening may be made more effective by means of a metal screen 25 extending beyond the electrodes. The coupling-elements 15, 19 are enclosed in the same bulb as the electrodes. Alternatively the two stages 26, 27 may be housed in a common bulb.
Patent GB-443593-A (GB)
Title: Improvements in or relating to the cooling of coke or the like
IPC: C10B39/02
Filed: 1934-09-01
Abstract: 443,593. Cooling coke. MITFORD, W. B., Fleetwood, Chessington, Surrey, LANDER, C. H., Imperial College of Science and Technology, Exhibition Road, South Kensington, London, BROCKLEBANK, E. W., Fern Dell, New Penkridge Road, Cannock, Staffordshire, and DILLEY, A. E., 240, Gillott Road, Birmingham. Sept. 1, 1934, No. 25230. [Class 51 (ii)] Apparatus for cooling coke discharged from a rotary retort comprises a cylindrical container 11 having an aperture 12 for connection to the lower end of the retort and fitted with water-cooled shelves 14, 15 over which the coke is carried in succession by rotary scrapers 31, 32, additional direct cooling being effected by water supplied through spray-pipes 36 in amount insufficient to immerse the coke at any stage of its travel through the cooler. The apertures provided for the shelf-to-shelf transfer are so disposed that the coke traverses substantially the entire surface of each shelf, an additional scraper 33 being provided below the shelf 15 to carry the coke which falls on to the bottom plate 21 to the rotary pocketeddrum discharge valve 23. The spray pipes 36 are mounted on the scraper arms 31 .. 33 and are supplied with water through the vertical shaft 28 which is driven through bevel gearing 37 from the shaft 41 of the discharge valve 23. The shelves 14, 15 are connected by a pipe 18 so that a continuous circulation of cooling water from the inlet 16 to the outlet 17 may be maintained. Specification 393,601, [Group III], is referred to.
Patent GB-946573-A (GB)
Title: Sampling apparatus
IPC: G01N1/20
Filed: 1960-07-20
Abstract: 946,573. Sampling. BOLIDENS GRUVAKTIEBOLAG. July 20, 1960 [July 21, 1959], No. 25251/60. Heading B8N. In sampling a freely falling and/or running stream of solid particles and/or liquid passing through a box 1, e.g. from an inlet 8 to an outlet 9, a sampling scoop 10 is passed, horizontally to and fro at a substantially constant speed, through the stream to collect a primary sample, through a variable slot 13 in the scoop. The scoop is connected to a swivelling arm 11 connected, above the top 6 of the box, to actuating mechanism 12 comprising an asynchronous motor and a gear-box. The primary sample flows down a rubber tube 14 and is discharged, downwardly outside the box 1, through an elbow tube 15 secured to the front 3 of the box. A pendulum 17 is pivoted, near its upper end, on a horizontal shaft 19 projecting from and secured to the front 3 of the box, and carries, at its lower end, a holder 22 comprising sampling shoots 23, 24 having variable slots 25, 26 at their upper ends. Above the shaft 19, the pendulum has an elbow-shaped extension with a horizontal arm 20 terminating in a vertical arm 21 which contacts the swivelling arm 11 and then escapes therefrom to initiate and sustain swinging of the pendulum. The swinging pendulum carries the shoots 23, 24 to and fro through the stream of the primary sample coming from the tube 15. Secondary samples, passing through the slots 25, 26, are diverted by the shoots into receivers 27, 28 carried in the holder 22. This has a removable base 29 facilitating removal and replacement of the receivers. The bottom of each receiver may be in the form of a detachable filter. The pendulum portion of the apparatus can be used, alone, for taking samples.
Patent GB-454690-A (GB)
Title: Improvements in or relating to processes for refining hydrocarbon oils
IPC: C10G21/02
Filed: 1935-09-11
Abstract: In the extraction of mineral oils with a selective solvent for constituents of low viscosity-index (naphthenic components), to form a solvent-extract phase and a raffinate phase, the raffinate is freed from the solvent-extract phase retained therein by washing with a different solvent which completely dissolves this phase but has no solvent action on the raffinate, consisting of high viscosity-index (paraffinic) constituents.  The distillation of the raffinate to remove solvent is thereby avoided. Lubricating - oil fractions which may contain wax are treated. Selective solvents specified are, furfural, nitrobenzene, aniline, benzaldehyde, benzophenone or dichlorethyl ether.  The washing solvent may be low-boiling aliphatic alcohols or ketones such as ethyl alcohol, acetone or methyl ethyl ketone.  A wax distillate is fed into a mixer 2 to which furfural containing some oil is admitted from a later stage.  Extraction temperatures of 150 to 250 DEG  F., are used The mixture passes to a separating vessel 4 from which the extract is drawn off into a still 34 to recover the furfural.  The raffinate is led into a second mixer 6 together with a further amount of furfural and the mixture passes to a second separating vessel 9.  The extract is removed and used in the first extraction stage.  The raffinate passes to the bottom of a tower 11 and is washed in countercurrent with acetone which is admitted at the top.  The acetone extract passes to a still to recover the acetone and the oil residue containing furfural passes to the mixer 2.  The washed raffinate containing some acetone passes to a mixer 15 where a further amount of acetone and some benzol are added from the tank 16.  The mixture is led to a chiller 18 where the temperature is lowered to 0 DEG  F., or below. The resulting mixture containing precipitated wax is forced through a filter 20 and the de-waxed oil is led into a tank 21. The oil is freed from de-waxing solvents in a stripper 23 and the finished oil passes to a tank 26. A final treatment with filter clay may be used.
Patent GB-655808-A (GB)
Title: Alkaline-alkali metal alginates and method of preparing same
Filed: 1948-09-28
Abstract: Alkali metal alginate, from which free alkali is entirely absent, is prepared by reacting alginic material having a pH lower than 10.5 in water and selected from the group consisting of free alginic acid, neutral alkali metal alginate and alkaline alkali metal alginate with an alkali metal hydroxide in dry alcoholic solution, the amount of alkali metal hydroxide being such that the reaction product has a pH of at least 10.5 to 12 in water, and evaporating the alcohol at a temperature below 70 DEG  C.  The alkali metal hydroxide may be sodium or potassium hydroxide.  Commercial alkali metal alginate may be given a preliminary purification prior to the above process by dissolving it in water and precipitating it with alcohol, or by treating it with a strong mineral acid such as hydrochloric or sulphuric acid, washing the precipitate with alcohol to remove acid, and then drying and grinding the precipitate.  A number of examples are given.
Patent GB-1300349-A (GB)
Title: Improvements in or relating to rotary electric switches
IPC: H01H11/00
Filed: 1971-04-19
Abstract: 1300349 Mechanical switches SIEMENS AG 19 April 1971 [25 March 1970] 25363/71 Heading H1N A rotary switch comprises a casing made up of two identical casing halves 1 made from a synthetic plastics material, and a pattern of contact surfaces 5 for each casing half stamped out of sheet metal and including terminals 6 adapted to be plugged into standardly-spaced holes in a printed circuit board. The surfaces 7 of halves 1 mate with each other and are provided with mating pegs 9 and recesses 10. The halves are secured together by heat deforming the ends of pegs 9, and screws through holes 43 having extensions 46 fitting into enlarged sections 47 secure the switch to a common support for a plurality of switches. The joint between mating surfaces 7 can be sealed by an adhesive foil or a bead of adhesive. The contact pattern 5 is moulded in each half. Inside the switch is a rotor, Fig. 5, made of identical halves 15, 16 of synthetic plastics material and having holes into which fit movable contacts urged by springs 23 acting on insulating members 24 so that extensions 14 on the movable contacts press against shoulders 22 on the rotor halves. The movable contacts each have three points 40, Fig. 4 (not shown), arranged on the contact surface in a triangle so that if two points bear on the inner fixed contact track 41, Fig. 1, and one point on the outer track, interrupted contact switching is achieved and if the two points bear on the outer track make before break switching is achieved.
Patent GB-423160-A (GB)
Title: Waterproof head cover
IPC: A42B1/12
Filed: 1934-09-04
Abstract: 423,160. Waterproof head coverings. HUNGARIAN RUBBER GOODS FACTORY, Ltd., (MAGYAR RUGGYANTAARUGYAR RESZVENYTARSASAG), 17, Kerepesi-ut, Budapest. Sept. 4, 1934, No. 25478. Convention date, July 18. [Class 63] A waterproof head covering, e.g. a bathing cap, shaped to the head consists of an outer slightly extensible or inextensible textile layer and an inner rubber layer, and is provided with an elastic part at a suitable place or places to facilitate the application and removal of the head covering. The elastic part is provided, preferably, at the nape of the neck, and is obtained either by leaving the head covering free from textile material at the part required, or by cutting out a piece of the inextensible material and inserting a rubber strip of corresponding size, free from textile material. The head covering may be lined with textile material.
Patent GB-1262084-A (GB)
Title: Anhydrous calcium sulphate
Inventor: CAFFERATA GERALD WATERWORTH
IPC: C04B11/05
Filed: 1968-05-28
Abstract: 1,262,084. Anhydrous calcium sulphate. BPB INDUSTRIES Ltd. 21 May, 1969 [28 May, 1968], No. 25496/68. Heading C1A. Anhydrous calcium sulphate is prepared by calcining gypsum in an autoclave with saturated steam at a temperature of at least 205 C. Between 205 and 220 C. the anhydrous crystals are mixed with hemihydrate crystals. In examples the products were milled to give crystalline particles between 4 and 8 microns in size and with surface areas between about 6000 and 8000 sq. cm./g.
Patent GB-998795-A (GB)
Title: Improvements in or relating to domestic and other hot-water systems
Inventor: FENNELL DENNIS
IPC: F24D3/08
Filed: 1963-06-27
Abstract: 998,795. Water heaters. RANGE BOILERS Ltd. June 24, 1964 [June 27, 1963], No. 25518/63. Heading F4A. In a hot water supply system of the type in which a calorifier is mounted inside a secondary vessel, the calorifier is mounted so that its weight is transferred directly to an external stand which also supports the secondary vessel. As shown in Fig. 1, the stand has three legs 13a (not shown), 13b, 13c which support the secondary vessel 10 through blank bosses 16 and the calorifier through its connections 11, 12. The weight of the calorifier is transferred directly to the leg 13c enabling the thickness of the wall of vessel 10 to be reduced. In a modification, Fig. 4 (not shown), the calorifier inlet and outlet connections are on opposite sides of the shell. In a further modification, Fig. 10, an arrangement suitable for a horizontal secondary vessel is shown. An angle iron frame 35, a yoke-piece 34 and a web 33 support the secondary vessel shell, whilst an extension 40 of the frame has a bracket 41 which independently supports the calorifier 38 which is of the return tube type. Fig. 5 (not shown), shows a similar arrangement applied to a vertical cylinder. In a further modification, Fig. 12 (not shown), an arrangement suitable for a calorifier consisting of a plurality of straight tubes inside a horizontal secondary vessel is shown. In this case the ends of the calorifier are attached through the top and bottom of the secondary vessel to longitudinal channels which are fixed to the supporting frame.
Patent GB-651182-A (GB)
Title: Improvements in and relating to protective windows for viewing sand or shot blasting, spraying or other operations
IPC: F16P1/02
Filed: 1948-10-01
Abstract: 651,182. Head coverings. HUTCHINSON, H. H. Oct. 1, 1948, Nos. 25566 and 30202. [Class 63] [Also in Group X] Windows are protected against superficial damage by transparent sheet material which is fitted over the exposed face of the window and progressively moved to bring undamaged portions of the sheet into position, (see Group X). Figs. 6 and 7 show the invention applied to the visor of a sand or shot blast worker's helmet. The helmet has a vulcanized fibre body L with a protective covering of rubber M, and a front opening N over which the window assembly is mounted. The inner frame B<SP>3</SP> has lateral lugs O for attachment to the helmet which is recessed at P to accommodate the trough portion I<SP>3</SP> of the frame. A protective film K<SP>3</SP> is led over the outerface of the transparent panel A<SP>3</SP>, the assembly being clamped by the corner nuts G<SP>3</SP> with a rubber gasket between the panel A<SP>3</SP> and the frame B'. Preferably the film K<SP>3</SP> is arranged to be drawn dcwnwardly. The assembly may be provided with film receiving troughs at opposite edges of the film which is wound from a spindle in one trough to a spindle in the other. A brake may be fitted to the spindles. The film may be of regenerated cellulose.
Patent GB-208596-A (GB)
Title: Improvements in and relating to pumps
IPC: F04B9/10
Filed: 1922-09-21
Abstract: 208,596. Peters & Co., Ltd., G. D., and Holey, W. H. Sept. 21, 1922. Double-acting piston pumps ; valves, arrangement of ; valves, facilitating removal of.-In a pump of the kind in which suction and delivery valves are arranged in a lateral housing on the pump barrel, said housing comprising a common chamber divided by a partition into two compartments, communicating respectively with opposite ends of the barrel, a number of relatively small suction and delivery valves 20, 21 are arranged in the housing 9 in a part annular row. Each pair of suction and delivery valves are housed in a cage 22 removable with the valves through an opening closed by a cap 23 and provided with a bearing shoulder 26. The valve casing is divided into three chambers 12, 14, 18 communicating respectively with a delivery branch 13, with the ends of the barrel, and with the suction pipe, the chamber 14 being divided by a vertical web 15.
Patent GB-587972-A (GB)
Title: An improved remote control installation operating according to the impulse-interval method
IPC: H02J13/00
Filed: 1944-12-21
Abstract: 587,972. Signalling over power circuits. LANDIS & GYR SOC. ANON. Dec. 21, 1944, No. 25628. Convention date, Dec. 28, 1943. [Class 40 (iv)] In a system for transmitting control signals over a power circuit, the frequency of the control signals lies between 450 and 500 c.p.s. when 50 c.p.s. mains are used in order to avoid interference by harmonics of the mains frequency.
Patent GB-857750-A (GB)
Title: Axial flow machine, particularly gas turbine
Inventor: ZBOJNOWICZ JOSEF
IPC: F01D11/00
Filed: 1959-07-27
Abstract: 857,750. Turbine stator blade tip-sealing. BROWN, BOVERI & CIE A.G. July 27, 1959, No. 25646/59. Class 110 (3). [Also in Group XXIX] In an axial-flow machine, for example, a gas-turbine in which a labyrinth type seal is provided between a row of stator guide blades and the rotor and is subjected to a flow of cooling medium, the cooling medium is supplied through bores in the rotor which discharge into the labyrinths so that two oppositely flowing streams of cooling medium occur therein. In the machine shown, the rotor blades 4 are mounted by their roots 3 in circumferentially-extending grooves 2 formed in the rotor 1. The stator guide blades 7 have a shroud band 9 at their radially inner ends; sealing fins being carried on the shroud band to provide labyrinth chambers 8. The rotor is formed with an axially-extending bore 5 and with bores 6 which communicate therewith, the bores 6 opening at the surface of the rotor opposite the labyrinth seals 8. Cooling medium supplied through bore 5 passes through bores 6 and then divides into oppositely flowing streams c and d passing through the labyrinth seal and into the working fluid stream. The first stage labyrinth seal is not cooled in this manner. The quantity of cooling medium flowing through the bores 6 may be controlled by the insertion therein of metering elements having calibrated orifices.
Patent GB-1527555-A (GB)
Title: Tunnel lining
IPC: E21D11/08
Filed: 1976-06-21
Abstract: 1527555 Tunnel linings FAIRCLOUGH CONSTRUCTION GROUP Ltd 20 June 1977 [21 June 1976 13 Aug 1976] 25652/76 and 33798/76 Heading E1F A concrete tunnel lining segment 10 is joined to an identical adjacent segment 11 by a pair of dowels extending across the abutting end faces of the segments 10, 11 at an angle to each other. The dowels may be inserted from the leading sides of the segments 10, 11 through mating holes 12 and 17, 15 and 14 (Fig. 1), or may be inserted through the end of segment 111 into mating holes 113 and 112, 113A and 112A (Fig. 9). The key segment may be fixed in place by a pair of angled dowels inserted through the sides or inner faces of adjacent segments or by a transverse pin (not shown) passing through holes in lugs formed on the key segment and its adjacent segments. Adjacent rings may be connected by dowels 70 or 170, by a step joint or by arcuate connecting members (not shown) extending through arcuate holes opening onto the inner faces of the segments.
Patent GB-144945-A (GB)
Title: A coat and trousers hanger combined
IPC: A47G25/28
Filed: 1919-10-20
Abstract: 144,945. Gilmour, A. R. Oct. 20, 1919. Coat and like hangers; trouser stretchers. - A trouser-hanger which may be combined with a coat-hanger comprises a pair of parallel bars C, D, Figs. 2 and 4, which are not in the same vertical plane, and are carried by supports B. The trousers are placed on the hanger so that they grip it when the free ends are pulled for stretching. The supports may be formed in various ways, may be hinged or may be rigidly attached to a bar J, which may have a hook, or may take the form of a coat-hanger F, Fig. 6. According to the Provisional Specification, two of the trouser-hangers may be used as grips for stretching purposes.