baber/WOPTO huggingface dataset:
Patent GB-1482043-A (GB)
Title: Tubular-membrane type separating process and apparatus using same
IPC: C07K1/14
Filed: 1975-02-14
Abstract: 1482043 Cleaning tubular membranes HITACHI Ltd 14 Feb 1975 [18 Feb 1974] 6453/75 Heading B1X A liquid to be treated by a tubular membrane separation process is passed under pressure along a plurality of osmotic membrane tubes each including a tubular semi-permeable membrane supported by a tubular liquid permeable member so as to obtain permeated liquid from the outer surface and concentrated liquid from the interior of each tubular membrane, the tubes being arranged in a plurality of stages from a stage at which the liquid to be treated has a lower concentration to one at which the liquid has a higher concentration, the number of tubes in each stage being larger at the lower than at the higher concentration stage, and in which resilient bodies are passed continuously along the tubes together with liquid from the lower to the higher concentration stage. The resilient bodies may be of rubber.
Patent GB-849078-A (GB)
Title: Improvements in or relating to contact blocks having filiform or strip-like contact springs
IPC: H01R13/436
Filed: 1959-02-25
Abstract: 849,078. Contact assemblies. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 25, 1959 [Feb. 28, 1958], No. 6527/59. Class 38 (5). [Also in Group XXXVI] Filiform or strip-like contacts 7 are secured in a contact block 1 by a spreader member 9 and located therein by arcuate portions 19 engaging correspondingly-shaped portions of the block. The parts 17 act ,as soldering tags and as indicated the pairs of contacts may initially be a single piece of metal. The spreader member 9 may have conductive portions to connect contacts together. A contact blade 23 engages the contacts in use.
Patent GB-1081272-A (GB)
Title: Method of making bearing separators and the like
IPC: F16C33/54
Filed: 1966-02-15
Abstract: 1,081,272. Making bearing cages; bending; welding by pressure. TORRINGTON MANUFACTURING CO. Feb. 15, 1966 [March 23, 1965], No. 6537/66. Headings B3A, B3E and B3R. A method of making bearing separators comprises providing a stripmetal blank 16 having slots 12a, the strip being provided with a slightly reduced width portion 30 adjacent at least one end edge, forming the strip into a ring, and welding its contiguous end portions thereby expanding the strip at the portion 30 to provide a straight side edge, Fig. 1 (not shown). The slots 12a are blanked-out in a press and a dimple is formed at a slot 12b to form the inwardly drawn portions 30. A forming tool 22 depresses portions 14a of the strip as it forms the dimples. The latter operation also flattens the previously formed dimple, but the portions 30 remain, although smaller in extent. Individual blanks are cut-off across the centre lines of slots 12b and the blanks are slightly larger than the circumferences of the completed cages. The blanks are bent around a mandrel 36 and then moved forwardly to lie between welding electrodes 45, 46, which move inwardly to maintain the ring under compression during welding and the consequent expansion of the ring fills the depressions 30. In an alternative method instead of forming the dimple, notches (30b), Fig. 7 (not shown), are cut in the edges of the strip as the blanks are severed therefrom.
Patent GB-605560-A (GB)
Title: Improvements in and relating to refrigeration apparatus
IPC: F25D21/06
Filed: 1945-03-15
Abstract: 605,560. Refrigerating. PHILCO CORPORATION. March 15, 1945, No. 6545. Convention date, March 17, 1944. [Class 29] A refrigerator comprises a main evaporator 11 operating below the freezing point of water, and a second evaporator 28 operating at a lower temperature and positioned so that moisture freezes on the second evaporator, which may have a removable portion 32. The main evaporator of the type shown in Specification 601,448, has ice-making shelves 20, 21 fitted with refrigerating pipes and a wall 14 which terminates below the shelf 20 to leave 'an elongated aperture 23 permitting free passage of air and moisture from the freezing space to the horizontal floor portion 18. Holes 24 also allow air to pass from the shelf 20. A removable plate section 29 of the floor 18 has the pipes 28 of the second refrigerator secured beneath it and is insulated from the floor 18 by a rubber frame 30. The second evaporator is supplied through a restrictor 31 from the main evaporator so as to be maintained at a lower temperature. A flanged plate element 32 is adapted to rest upon the plate 29 and when frosted may be released by a cam device 34 and removed for defrosting. The plate 29 may be dished and receive a removable tray. The upper food storage space 5 is cooled by a secondary system in which condensation is effected by a small evaporator 39 supplied from the second evaporator 28 through pipes 40. The liner 13 of the freezing section is insulated at 15 from the liner 4 of the food storage space, and the two spaces are separated by a partition 17. "
Patent GB-1452637-A (GB)
Title: Diffusion of impurities into a semiconductor
IPC: C30B31/06
Filed: 1974-02-13
Abstract: 1452637 Semi-conductor diffusion COMMUNICATIONS SATELLITE CORP 13 Feb 1974 [13 Feb 1973] 6593/74 Heading H1K A pn junction is formed in a first surface of semi-conductor body by diffusion of an impurity from a gas while a molten layer is maintained at the opposite surface. The molten layer masks the opposite surface against diffusion from the.gas and also relieves lattice strain within the semi-conductor body. In the manufacture of a Si solar cell a layer of Al, Ga, In or Tl is deposited on one surface of a p type Si body and the body is placed, coated surface down, in a boat in a diffusion furnace and is heated in an inert atmosphere to produce a molten layer of Si-Al, &c. beneath the body. A phosphorous-containing diffusion gas is then introduced, resulting in a P-doped n type layer in the top surface. Some diffusion may also take place from the molten layer. On cooling the molten layer recrystallizes as a p<SP>+</SP>-type layer.
Patent GB-213744-A (GB)
Title: Improvements in or relating to concrete railway sleepers
IPC: E01B9/18
Filed: 1923-03-07
Abstract: 213,744. Cowling, H. W. March 7, 1923. Screw sockets.-A plug k for use with a concrete railway sleeper, is formed of a mixture of cement, ashes and brick dust, with one or more of the following :-asbestos, shredded timber, and jute, coir, cotton or other vegetable fibres. The mixture, to which water is added, may be inserted in the sleeper when it is being moulded or after it is made. In the former case it is pressed into a corrugated conical casing h, which is embedded in the concrete of the sleeper. In a modified construction a compressed fibre plug is embedded in the mixture
Patent GB-453426-A (GB)
Title: Improvements in kneecaps
IPC: A41D13/06
Filed: 1935-03-04
Abstract: 453,426. Knee - protectors. GAMBIE, G. A., 53, Albany Street, Spring Bank, Hull. March 4, 1935, No. 6670. [Class 141] [See also Group VI] Knee - protectors comprise inner and outer covers 12, 11, of fabric, and leather or rubber respectively, having a sponge rubber or like pad 10 between them, and spring clips 14 enclosed in turned-over positions 15 of the top and bottom edges. The clips 14 may be of spring strip or of flattened coil spring and in the latter case are connected to leather or like tabs having press-stud or other fasteners. Bulging at the side 19 in use may be prevented by cutting these portions away.
Patent GB-589583-A (GB)
Title: Improvements relating to scraper blades for decorticating machines
IPC: D01B1/22
Filed: 1945-03-16
Abstract: 589,583. Decorticating-machines. STEVENS, A. H. (Humbert, L.) March 16, 1945, No. 6674. [Class 120 (i)] The scraper drum of a machine for decorticating leaves of sisal, hemp &c. is provided with supplementary blades mounted on one or both sides of the existing scraper blades, with their scraper edges spaced from those of the existing blades, and secured by bolts, welding or other means. In the form shown, the supplementary blades 1 are bolted to an existing blade 5 and are rebated so as to leave grooves 4 between the three cutting edges. In an alternative form, the supplementary blades may be formed without rebate and spaced from the main blades by washers or distance pieces.
Patent GB-1128164-A (GB)
Title: Improvements in or relating to fluid flow control valves
Inventor: TRISTRAM WILLIAM FRANCIS
IPC: F16K17/04
Filed: 1965-02-17
Abstract: 1,128,164. Valves. BONSER ENG. Ltd. 17 Feb., 1966 [17 Feb., 1965], No. 6739/65. Heading F2V. An hydraulic pit prop (not shown) is connected to the outlet port 7 of a relief valve 1 and is extended by fluid passing from the valve inlet 2 via hollow piston 14, 16 and bores 12 in closure member 13. After extension of the prop the inlet pressure is reduced to allow spring 15 to seat the closure member against the end of piston 14, 16. If the pressure in the prop increases, e.g. due to subsidence, the pressure acting on the tapered surface 24 of the piston moves the latter downwardly relative to the closure member to relieve the pressure in the prop. Surfaces 24 and 27 may be of equal area.
Patent GB-212111-A (GB)
Title: Improvements in pantograph apparatus for producing drawings from models, also applicable for carving
IPC: B43L13/10
Filed: 1923-03-09
Abstract: 212,111. Brooks, A. March 9, 1923. Copying. - Pantographic apparatus for drawing, carving, modelling, &c. comprises a tracing arm l mounted on a carrier k to which are pivoted two arms i, j of unequal lengths, the other ends of which are pivoted to a link g forming the top member of a parallel motion device consisting of four links d - - g pivoted together. The link d is mounted on a pivot pin c on a base plate a and the link f carries the pencil &c. h. The drawing board n is mounted in a block m which is hinged to the base a, a handle o being provided for moving the board into or out of engagement with the pencil. For modelling, the pencil is replaced by a drill and the linkage is arranged to be rotatable about an horizontal axis in the plane of the Figure.
Patent GB-1453762-A (GB)
Title: Production of triethanolamine fuel vapour emission control device for motor vehicles
IPC: C07C213/00
Filed: 1974-02-15
Abstract: 1453762 Triethanolamine BASF AG 15 Feb 1974 [17 Feb 1973] 6906/74 Heading C2C Triethanolamine is made by reacting monoethanolamine and/or diethanolamine with ethylene oxide in the liquid phase in the substantial absence of water and ammonia, from 0À8 to 1À1 moles of ethylene oxide being used per gram atom of hydrogen combined with nitrogen and wherein the reaction is carried out for at least part of the time but not for a total of more than two hours at a temperature of from 110-180‹ C. The temperature at the beginning of the reaction may be not more than 100‹ C. and may be raised later to 110-180‹ C. The reaction may be effected (a) by a batch process in a stirred reactor vessels provided with an after-reactor or in a cascade of stirred vessels only the last of which is provided with an after-reactor or (b) by a continuous process in which the reaction mixture is circulated under pressure by a gear pump through two heated jackets and finally through an after-reactor or in a cascade of such reactors except that the after-reactor is omitted from all but the last stage.
Patent GB-1027098-A (GB)
Title: Percussive drill with noise silencer
IPC: B25D17/12
Filed: 1965-02-18
Abstract: 1,027,098. Silencing gaseous currents. CHICAGO PNEUMATIC TOOL CO. No. 7026/65. Heading FIB. [Also in Division B4] A pneumatic percussive tool, such as a road breaker, comprises a piston 17 reciprocated in a cylinder 11 under the control of a distributing valve 22, and a silencer unit 34 disposed about the cylinder and exhaust ports 33 and having a plurality of individual sound filter systems each having an upper chamber 57, 58, 59 and a lower chamber 47, 48, 49. The silencer unit is welded to the cylinder 11 and is divided by a partition 46, into upper and lower portions. The upper portion is divided by radial webs into the three upper chambers 57, 58, 59 and the lower portion into the three lower chambers 47, 48, 49. The upper chambers communicate with the exhaust ports 33 via channels 62, 63, Fig. 3 (not shown), a passage 61 and ports 64. The air expands in the upper chambers and then flows via ports 65 into the lower chambers where it then flows to atmosphere, via ports 66, a passage 67 and ports 69.
Patent GB-262312-A (GB)
Title: Improvements in silencers for motor vehicles
IPC: F01N13/08
Filed: 1926-03-13
Abstract: 262,312. Jarmorkin, R. March 13, 1926. No Patent granted (Sealing fee not paid). Exhaust-silencers.-In a silencer for motor vehicles in which the exhaust escapes into a stream of air in the interior of a doubleconical body 1, 2 and the outlet end 5 of the air-inlet cone 1 is smaller than the inlet end 6 of the outlet cone 2, the ends 5, 6 lie in a common plane and the cones are made from blanks of similar size. Exhaust outlet slots 8, 9 are cut in the blank for the cone 2, and openings 18, Fig. 8, in the blank for the cone 1. In the openings 18 are fitted a flat body which may consist of a pair of separate blanks 12 with bent-over ends 13, 14 forming spaces 16, Figs. 1 and 4, communicating with the annular exhaust chamber 4 and with the central air passage between the parts 13, 14, slots 17 in the parts 14 also open into the central air passage. The openings 18 may be fitted with a perforated cover. Exhaust is admitted from an exhaust pipe 7 to the space 4, which may be fitted with a helical baffle 26 and with a perforated cover 11 around the inner ends of the cones 1, 2. In a modification, the perforated covers 11 &c. are omitted and the exhaust from the pipe 7 enters through perforations in the cylindrical casing of the silencer; the ends 5, 6 of the cones 1, 2 in this form are connected at a number of points by welding. In another form, the flat body 12 - - 14 is replaced by a body of torpedo section in two dished parts welded together. In a further form, to facilitate cooling, the outer casing 3 has its widest portion towards the rear.
Patent GB-1261492-A (GB)
Title: A pot, pan or similar vessel for domestic use with a handgrip, and a method for making such a vessel
Inventor: HAMER EMILE PAUL ELIZA
IPC: A47J45/06
Filed: 1970-02-13
Abstract: 1,261,492. Welding by pressure. KONINKLIJKE KAMPER METAALWARENFABRIK V. H. H. BERK & ZOON N.V. 13 Feb., 1970, No. 7072/70. Heading B3R. [Also in Division A4] Two parts are welded together by connecting them respectively to the two terminals of a large charged capacitor, such that when the parts are brought into contact a high current density occurs at the points of contact which melt, thus initiating a weld which spreads over the whole of the adjacent surfaces of the two parts. The initial contact point may be provided by small protrusions 9 (Fig. 3) or 14 (Fig. 4) on one of the parts.
Patent GB-110710-A (GB)
Title: Gripping and Buttoning Devices for Artificial Arms.
Inventor: CORLEY QUENTIN DURWARD
IPC: A61F2/58
Filed: 1917-05-17
Abstract: 110,710. Corley, Q. D. May 17, 1917. Button-hooks and the like.-An artificial arm is provided with a buttoning attachment comprising a curved loop 24 carried by a sleeve 21 which is mounted upon a rod 17 and has quadrant notches 22 for engaging pins 23 to lock it against rotation in four angular positions. The rod is secured by a flynut 19 to the fixed jaw 2 of a gripping- device and can be slung sideways out of the way.
Patent GB-1201237-A (GB)
Title: Improved door furniture
Inventor: MILLER IAN CRICHTON
IPC: E05B65/00
Filed: 1969-02-10
Abstract: 1,201,237. Push button door handle. I. C. MILLER and J. H. MILLER. 10 Feb., 1969, No. 7102/69. Heading E2A. Door furniture comprises a main supporting plate 11 for mounting on one side of a door and a handle 15 mounted on the plate, the handle having a spring loaded push-button 16 slidably mounted therein and having a larger part 21 and a smaller part 22, the plate having a keyhole shaped slot having a first portion 13 of greater width than the second part 12, the dimensions of the slot being such that when the button 16 is pressed the larger part 21 thereof is capable of passing through the larger portion of the slot but not through the smaller portion, the handle 15 being supported on the plate for movement along the smaller portion 12 of the slot, after the larger part 21 has passed through the larger portion 13, to be positioned adjacent a plunger 24, which plunger when depressed by further depression of the push buton releases latching means 24 adapted to be mounted on the other side of the door. The plate 11 may be of metal or plastics and is provided with a locating tube 23, positioned beside the smaller portion 12 of the slot, which passes through a hole in the door. Grooves 27 are provided in the plate and co-operate with spring pressed balls 28 in the handle to facilitate the sliding motion of the handle. In another embodiment, (Figs. 5-8, not shown) the plate has a transverse keyhole slot disposed opposite one leg of a U-shaped handle, that leg being provided with the push button. The other leg is rotatably secured to the plate to permit the handle to be swung therearound to provide the necessary movement of the button along the axis of the slot.
Patent GB-1222885-A (GB)
Title: Flame-retardant treatments for cellulose
IPC: D06M15/673
Filed: 1968-02-13
Abstract: 1,222,885. N-containing cellulose derivative. J. P. STEVENS & CO. Inc. 13 Feb., 1968 [2 March, 1967], No. 7108/68. Heading C3A. [Also in Divisions C2 and D1] In Example 9 cotton fabric is padded with aqueous N-(hydroxymethyl)chloroacetamide and is dried at 150‹ C. whereby the cotton is O- (chloroacetamido)methylated.
Patent GB-341764-A (GB)
Title: Vessels for boiling milk or other liquids
IPC: A47J27/58
Filed: 1930-03-04
Abstract: 341,764. Vessels for boiling milk &c. CALIMANI, A. and MONETA, G., 22, Via S. Vincenzo, Milan, Italy. March 4, 1930, No. 7119. Convention date, March 7, 1929. [Class 66.] In a vessel for boiling milk &c. of the kind provided with a collecting channel around the upper edge, the channel 3, which is completely open at the top, is provided with an open lip 5 sufficiently large to permit the continuous discharge of any overflow of milk into a receptacle placed under the lip. The channel is formed between the wall of the vessel 2 and an eccentrically disposed surrounding wall 4, the base of the channel sloping at an angle A of not less than 6‹. The bottom 6<1> of the lip 5 slopes at a greater angle to facilitate the disposal of any overflowing milk. The channel and vessel may be formed from one piece of metal, or the parts may be made separately and secured together.
Patent GB-1426191-A (GB)
Title: Digital circuits
IPC: H03K19/017
Filed: 1973-02-14
Abstract: 1426191 Pulse circuits HITACHI Ltd 14 Feb 1973 [14 Feb 1972] 7179/73 Heading H3T A digital circuit comprises a first delay circuit Tt<SP>1</SP> 1 , a memory circuit M including an inverter Td9 with a load TZ6, a logic circuit L<SP>1</SP> 1  arranged to perform a logic function other than inversion, a second delay circuit T<SP>1</SP>t 2 , the first and second delay circuits being respectively rendered operative by clock pulses # 1 , # 2  differing in phase. In the alternative embodiments of Figs. 2b, 3b (not shown) the memory circuit may be arranged to form part of the logic circuit. In operation, an input signal I 1  is written into a memory circuit M via a transfer gate Tt<SP>1</SP> 1  when turned on by a clock pulse # 1  and the stored signal is then read-out via a logic circuit L<SP>1</SP> 1  and a transfer gate T<SP>1</SP>t 2  when the latter is turned on by a clock pulse # 2 . As the circuit operation is synchronized with the appearance of an initial # 2  pulse, any inherent delay associated with the input signal I 1  is absorbed in the delay time taken to switch Tt<SP>1</SP> 1  by # 1  pulse and the delay encountered in the memory circuit M and logic circuit L<SP>1</SP> 1  is absorbed in the further delay time taken to switch Tt<SP>1</SP> 2  by # 2  pulse thus keeping the total delay time at a minimum. In the embodiment of Fig. 3b (not shown) the outputs of two logic circuits are applied via separate transfer gates controlled by the first clock pulse to a logic circuit incorporating the memory circuit. The delay circuit may be formed as a series or parallel combination of two FETs having their respective control electrodes connected to the input signal and the clock pulse. The arrangement may be made as an integrated cricuit and bipolar transistors may be used in place of FETs.
Patent GB-385796-A (GB)
Title: Process of improving flour for the manufacture of food stuffs
IPC: A21D2/36
Filed: 1932-03-11
Abstract: Food flours such as flour of wheat, rye, rice, potato, soya bean, barley, maize, oats, tapioca, starch, &c., have their dough-forming substances supplemented or the lack of such substances remedied by addition of the milled products of seeds of Ceratonia siliqua (carob tree) or related plants of the groups of the Mincosac  or C salpiniac , or of parts of said seeds containing naturally accumulated therein an edible hemicellulose or of hemicellulose-containing extracts of such seeds or seed parts.  Seeds of the following plants may be used. Gleditschia triacantos, Cercis siliquastrum, Cercis canadensis Cercis chinensis and other members of the Cercis species, Gymnocladus canadensis, and the Cassia species.  The endosperm may be separated from the seeds and used alone, and the seed and the endosperms may be purified before use by washing with water or volatile solvents or aqueous solutions of salts or acids.  The hemicellulose may be extracted from the seeds or the endosperms, e.g. by means of water or diluted aqueous solutions of salts or acids, elevated temperatures being avoided when using acids to prevent hydrolysis of the carbohydrates, and the extracts may be added to the flour in solution, e.g. in mist form, or in concentrated or dried state. Germinal substance from the same or from different kinds of seeds may also be added to the flour.  In making bread or pastry, less water than would be taken up by the flour is added in making the dough, and the usual other additions are included, more particularly enzymotic baking agents or baking powders, and yeast foods and stimulants. Dietetic flours, bakers' products, macaroni, vermicelli &c. low in albumen may be obtained by working up the hemicellulose-containing substances with carbohydrates such as starch or flour poor in or free from gluten. Dietetic flours and macaroni and other foodstuffs rich in gluten can be obtained by working up the endosperms or their extracts with wheat gluten.
Patent GB-1281613-A (GB)
Title: Cryogenic power source for starting jet engines
IPC: F02C7/277
Filed: 1970-02-17
Abstract: 1281613 Revaporizing liquefied gases SYSTEMS CAPITAL CORP 17 Feb 1970 [26 March 1969] 7507/70 Heading F4P Revaporization of liquid nitrogen stored in a tank 11 is effected by passing the gas into a chamber 12 containing preheated alumina pellets 14. The pellets 14 are heated prior to the supply of liquid by hot gas forced through the chamber 12 by a pump 41, the gas being heated over a burner in duct 19 of an exchanger 15. Vaporized N 2  is passed from chamber 12 via outlet 45, line 47 and valve 17 to the delivery coupling 49. Liquid N 2  may be supplied to chamber 12 by a pump, (Fig. 1, not shown), or by the vapour pressure within tank 11 which is increased by vaporizing same N 2  in coils 87 and 93 and returning the vapour to tank 11. Tank 11  is filled via a union 65 and valve 67 gases within the tank being vented; when the filling cycle is completed the venting valves are shut and the . pellets 14 heated until a predetermined temperature is reached whereupon heating ceases and liquid N 2  is supplied to the chamber 12. The hot high pressure gas generated may be delivered to the intake duct of an aircraft turbine engine for starting the engine. In an alternative embodiment, (Fig. 2, not shown), the revaporization unit is mounted in an aircraft, hot gas for heating the pellets being provided by the exhaust of a small turbine.