baber/WOPTO huggingface dataset:
Patent GB-1239971-A (GB)
Title: Strainers for use in ion-exchange apparatus
Inventor: BLIGHT FRANK CHARLES
IPC: B01J47/02
Filed: 1968-03-15
Abstract: 1,239,971. Ion-exchange apparatus; strainers. PERMUTIT CO. Ltd. 25 Feb., 1969 [15 March, 1968], No. 12845/68. Heading B1J. A strainer for use at the bottom of a vessel containing a bed of ion exchange material, in particular for insertion through the underside of and into a pipe forming part of a collecting and distributing system, comprises a header connected to an array of lateral pipes, see Figure 1 (not shown). As illustrated in Figures 2 and 3, a strainer 7 comprises a central tube 8 having a threaded lower end which engages in a threaded socket provided in a base element 9. Surmounted on the base element are an intermediate element 11, a stack of straining elements 18, 19, 20 and 21 and a top element 28, the underside of the intermediate element, each straining element and the top element being provided with integral spacers 12, 22 which provide gaps 13, 23, 24, 25, 26 between adjacent elements of the array formed by the base element, intermediate element, straining elements and top element. Four bores are formed in each straining element which is so oriented, relative to the intermediate element and to the other straining elements, that the bores register to form four passages 27, each of which passages is in register with an entry 15 to a valve chamber 14 formed in the intermediate element and defined by surfaces of the base and intermediate elements. Each valve chamber communicates with the interior of the central tube via an aperture 10 formed in the wall of the tube and contains a ball 16 which is lighter than water and which is adapted to engage a valve seat 17 thereby to constitute a one-way valve. The central tube has a threaded upper end which engages with a thread provided on the top element and which is adapted to engage with a threaded aperture 29 provided in a pipe 6 forming part of a collecting and distributing system which is adapted to be located at the bottom of an ion exchange vessel and which comprises a header connected to an array of pipes provided with such strainers on the underside thereof. The threaded upper end of the central tube of the strainer preferably is provided with a locknut 30 whereby the position of each strainer may be adjusted relative to the pipe so that the strainers may rest on the floor 2 of the ion-exchange vessel thereby to support the collecting and distributing system. The construction of the strainer is such that liquid fluid may flow into the central tube via any of the gaps between adjacent elements of the array of elements but may flow from the central tube only via the gap between the base and intermediate elements, each ball and associated valve seat acting to prevent flow of liquid fluid from the central tube via the valve chamber and the gaps between the intermediate, straining and top elements. Reference is made to Specification 1,102,367.
Patent GB-870409-A (GB)
Title: Improvements in or relating to toy guns and ammunition therefor
IPC: F42B8/02
Filed: 1959-04-15
Abstract: 870,409. Miniature ammunition. DIE CASTING MACHINE TOOLS Ltd., and MILLS, A. R. Feb. 25, 1960 [April 15, 1959], No. 12850/59. Class 9(1). [Also in Group XV] Ammunition for a toy gun, e.g. a pistol, comprises a projectile 11 retained in a cartridge case 10 by hook-like projections 16 engaging an inturned edge 12 and urged forwardly by a spring 13 bearing on shoulders 23 of a tailpiece 21. The hook-like projections are formed at the ends of resilient arms 14 which tend to spring outwardly but are prevented from springing beyond a position in which lugs 20, Fig. 4, on the arms engage flanges 19 on the projectile's sidewalls 17. The arms 14 have peaked portions 15 which serve as cam surfaces. When the ammunition is struck by a spring-urged trigger-operated striker 30, the cartridge is moved forward, the peak parts 15 engage sloping surfaces 31 in the pistol, the arms 14 are moved inwardly, the projections 16 are disengaged from the inturned edge 12 and the projectile is propelled through the pistol barrel by the spring 13. The spring is retained in the cartridge by the inturned edge 12 so that the cartridge can be reloaded by forcing the projectile into its open end tail first. The cartridge may be of metal and the projectile formed in one piece by moulding from a plastics material.
Patent GB-476099-A (GB)
Title: Improvements in and relating to vehicle actuated means for opening and closing doorsor gates
IPC: E05F13/02
Filed: 1937-05-05
Abstract: 476,099. Door-operating apparatus. AUSTIN. W. May 5, 1937, No. 12881. Addition to 465,477. [Class 65 (i)] In apparatus for the operation of doors or gates by a vehicle according to the parent Specification, the actuating member engaged by the vehicle comprises a rigid rod, slidable longitudinally in a guide shallowly buried in the ground, and an upstanding arm integral or rigid with the rod. The arrangement of the mechanism may be the same as that described in the parent Specification except for the replacement of the levers thereof by sliding members, the vehicle being freed from the sliding members at the ends of their travel either by forming the road surface so as to raise the vehicle slightly at the appropriate point, or, preferably, by using a resilientlymounted member on the vehicle, such as is described in Specification 470,742, to engage the sliding members and to ride over them when their movement is arrested. In a modification, the mechanism is arranged substantially entirely on that side of the doors to which they open, and a single sliding actuating member 120 engages between pairs of abutments 127, 128 and 130, 131 fixed on the operating cables, the cables being arranged to dip in the centre so that the member 120 becomes free of one pair of abutments after opening the doors and engages the other pair to close them, the vehicle-carried member riding over the member 120 when the latter is stopped at the end of its travel. The member 120 is shaped so as to project outside the doors, which may be formed with recesses to accommodate any portions of the vehicle projecting in front of the part that engages the member 120.
Patent GB-538747-A (GB)
Title: Improvements in or relating to the dewaxing of mineral oils
IPC: C10G73/06
Filed: 1940-08-12
Abstract: 538,747. Dewaxing mineral oils. STANDARD OIL DEVELOPMENT CO. Aug. 12, 1940, No. 12885. Convention date, Oct. 4, 1939. [Class 91] In dewaxing oil by mixing with volatile refrigerant, e.g. liquefied gaseous hydrocarbons or sulphur dioxide, chilling by evaporating the refrigerant and separating the wax, the refrigerant vapour is condensed by contact with the dewaxed oil. For example, waxy petroleum lubricating oil distillate is withdrawn from a tank 3 by a pipe 4, liquid propane from a tank 5 by a pipe 6, and if desired a dewaxing solvent from a tank 7 by a pipe 8 and the mixture passed through a heater 9 to ensure complete miscibility, a cooler 11, and a pipe 2 to a chiller 1; a predetermined amount of propane is allowed to evaporate to reduce the temperature, e.g. to -50‹F. and the mixture discharged through a pipe 12 to a filter or centrifuge 25; wax is removed by a pipe 26; the dewaxed oil flows through a pipe 27 and at least part through a pipe 16 and over bubble caps 14 to condense the rising propane vapour; the liquids collect in a reservoir 17 and are discharged through pipes 18, 24 to means for removing the propane. Preferably, the rising propane vapour is freed from entrained oil or wax by washing on caps 21 with cold propane from a pipe 22; the amount of cold dewaxed oil admitted by the pipe 16-and hence the temperature about the caps 14-is determined by a thermostat arrangement 23; the liquid level in the bottom of the chiller 1 and hence the rate of withdrawal through the pipe 12 is controlled by a float and valve device 13; the discharge through the pipe 18 is regulated by a liquid level control arrangement 19; and undue pressure owing to uncondensed propane or other gas is prevented by a relief valve 30. There may be a number of chillers 1 in series, e.g. 4-7, the chilling in each stage between 80-0‹F. being at most 20‹F. About 3 vol. of propane to 1 of oil is suitable.
Patent GB-245338-A (GB)
Title: Improvements in tube cleaning and scale removing devices
IPC: F28G3/14
Filed: 1925-05-18
Abstract: 245,338. Gavino, M., and Taricco, L. May 18, 1925. Cleaning internally, rotary appliances for. - A device for cleaning tubes and removing internal incrustation comprises a rotatable stream-line head A having a number of radial slots through which scraper blades project which slide outwardly under the action of centrifugal force when the cleaner is in operation. The blades B have wedge-shaped cutting edges and are provided with lateral projections K which slide freely in slots in the head and a star-shaped washer which is held in position by the end cap. Pins N, 0 pass through the tubular coupling M and connect the cleaner to a flexible shaft L, the pin 0 having a small amount of play in a direction longitudinal with the transmission shaft. A friction clutch P is interposed between the motor and the flexible shaft which yields if the cleaner head becomes jammed.
Patent GB-1235541-A (GB)
Title: Life support system and method
Inventor: FISCHEL HALBERT
IPC: A62B7/06
Filed: 1968-03-18
Abstract: 1,235,541. Respiratory apparatus. H. FISCHEL. 18 March, 1968 [16 March, 1967], No. 13044/68. Heading A5T. [Also in Division F4] A life support system for controlling the partial pressure of oxygen in a breathing gas mixture includes a reservoir containing the gaseous oxygen in equilibrium with liquid oxygen, means for flowing the breathing gas mixture through the reservoir, and means for cooling the gas mixture before its entry into the reservoir. As shown, the respirator of a diver, or a unit supplying breathing gas to a number of divers in an enclosure, comprises a vessel 24 containing liquid and gaseous oxygen and maintained at a selected temperature by a liquid nitrogen jacket 28, the exhaled gas passing to the vessel 24 via one-way valves 13, 14, carbon dioxide and water removal chambers 16, 18, 36, and a heat-exchanger 26 where the exhaled gas is cooled. In the vessel 24 the exhaled gas is enriched with oxygen (aided by a wick) and it then passes to the diver &c. via the heat exchanger 26, a one way valve 12 and an outlet mechanism 10, such as a face mask. Gaseous helium may be injected into the gas circuit from a vessel 42 via a regulator 20. In order to maintain the liquid nitrogen jacket 28 at the desired temperature the apparatus may include an outlet 52 through which the nitrogen may be vapourised off from the jacket under the control of a valve 50. The outlet 52 may include a extraction pump or vacuum vessel and heat generated in the outlet may be supplied to tubing (108) in a diver's suit. The outlet valve 50 (see also Figure 7, not shown) comprises an apertured piston (136) moved into alignment with the nitrogen outlet line (97) by a temperature responsive sensor tube (63, 130) communicating with the interior of the oxygen vessel. The heat exchanger 26 may comprise (see also Figs. 5, 6, not shown) corrugated members separated by plane membranes and it is stated that those parts of the system of Figure 1 within the box 43 may be used to simulate a person's breathing and to test a further respirator, e.g. by supplying a gas mixture defincient in oxygen to the resirator. In a modified closed circuit respirator (Figure 8, not shown) for use in space by one or several persons, the nitrogen jacket 28 is unnecessary and the oxygen vessel is maintained at the required temperature by selectively by-passing a heat exchanger and refrigerator with the re-circulating exhaled gases.
Patent GB-131918-A (GB)
IPC: B65D85/30
Abstract: 131,918. Arosio, M. Aug. 29, 1918, [Convention date]. Coverings, casings, and protective devices, external.-A protecting casing or envelope for glass containers, especially applicable to large glass botfles such as demijohns, consists of a wooden casing to which a covering of vulcanized fibre is applied, the exposed surface of the covering being provided with a film of celluloid or acetylcellulose applied thereto by the process described in Specification 131,911, [Class 140, Waterproof &c. fabrics], or by any other convenient process.
Patent GB-591331-A (GB)
Title: Improvements in shock-proof mechanisms particularly for electric circuit breakers orthe like
IPC: H01H71/10
Filed: 1945-05-25
Abstract: 591,331. Automatic circuit breakers; electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd. May 25, 1945, No. 13202. Convention date, May 25, 1944. [Class 38(v)] [Also in Group XXXII] A relay-armature or the latch of an automatic circuit-breaker is rendered shockproof by temporarily locking it by means dependent upon the deflection of a resiliently-pendulous support for a weight. The movable contact 22 of an automatic circuitbreaker is carried on an arm 20 on a shaft 19 carrying a bell-crank lever, the arm 18 of which carries a roller 21 co-operating camwise with the face 17 of a double lever 15, 16 pivoted at 14. The lever arm 15 is connected to a toggle 1, 2, which is normally retained at one end by a trip-free lever 10, and is raised to a slightly under-set position, wherein the breaker is held closed by a prop 32, by a link 8 suspended from a crosshead 6, raised in turn by a hand-actuated link 7 and crank-arm 5. The lower end of lever 15, 16 and the arm 43 of the bellcrank lever are urged apart by a compression-spring 40 on a guide rod 41, whereby, when the lever 10 is freed by tripping, the toggle system 1, 2 moves to the left clear of the prop 32 and collapses, opening of contact 22 being accelerated by the spring 40. Lever 10 is normally retained by a latching system comprising a lever 25 pivoted at 28 to a lever 26, which has a fixed pivot 27 and carries a tail 31 normally retained by a detent 30 on a rotatable trip shaft 29. After tripping and the collapse of toggle 1, 2, the parts 10, 25, 26, 30, 31 are automatically reset ready for reclosure in the manner described. A torsion spring 35 biases the prop 32 anticlockwise about its pivot 33 and against a stop 44, and a spring 34 connected to the prop forms the control spring of the trip shaft 29. To avoid faulty release of the latch 26 due to shock, a crank 48 secured to the shaft 29 is prevented from rising by temporary vibration of a wire 46 which supports a weight 45 and passes through an inverted funnel-shaped hole 51 in a fixed part 50. The wire is made stiff enough to avoid deflection during normal pitching and tossing of a ship. The armature of an electromagnet may be similarly protected against faulty release, Fig. 2 (not shown). Specification 581,322 is referred to.
Patent GB-132250-A (GB)
IPC: F16H37/00
Abstract: 132,250. Soc. des Moteurs Gn¶me et Rh¶ne. Sept. 3, 1918, [Convention date]. Conveying rotary motion. -- Gearing for driving a number of cam-shafts h, h' arranged around the crank-shaft o of a radial-cylinder engine, comprises an eccentric a keyed on the crankshaft or driven from it by speed - reducing gearing, and an eccentric strap having arms c, e<1>, pivoted on crankpins on the cam-shafts, or on gear wheels f, f<1>, which drive the camshafts.
Patent GB-1178382-A (GB)
Title: Improvements in or relating to Sample Loading Apparatus.
Inventor: THOMSON ALAN RUSSELL
IPC: G01N1/00
Filed: 1966-03-25
Abstract: 1,178,382. Transferring samples; chromatography. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 13 Dec., 1966] 25 March, 1966], No. 13440/66. Heading B1X. Apparatus for automatically loading samples on to an analysis apparatus, for example a chromatography column, comprises a transfer member 1 which may be in the form of a rectangular block longitudinally slidable on guide rails 3, a plurality of apertures 6 extending through the transfer member for receiving sample containers 2, means such as a bed of ion exchange resin 9 in each container 2 for retaining sample prior to passing it to the analysis apparatus, a fluid flow assembly comprising inlet duct 4 and outlet duct 5 simultaneously registerable with respective ends of a given aperture, and means for providing relative movement between the fluid flow assembly and the transfer member so that the inlet and outlet ducts register with each aperture in turn. In the embodiment shown, a driven shaft 16 carries two discs 18, one on each side of the transfer member I, and a projecting peg 20 on each disc engages grooves 11 along the upper edge of member 1 to move member 1 in a step-wise manner to bring each sample container in turn under the inlet duct. Shaft 16 also carries a cam 19 which in one position clamps the inlet duct, transfer member and outlet duct together. (Fig. 2 not shown).
Patent GB-510983-A (GB)
Title: Improvements in thermionic cathodes
IPC: H01J1/14
Filed: 1938-05-05
Abstract: 510,983. Alloys. GENERAL ELECTRIC CO., Ltd., BENJAMIN, M., and SMITHELLS, C. J. May 5, 1938, No. 13447. [Class 82 (i)] The core of an oxide coated thermionic cathode consists of a nickel alloy containing not less than 75 per cent. of nickel with 0.15- 0.5 per cent. of magnesium with or without other elements such as iron and cobalt. The alloy may be made by melting nickel in a reducing atmosphere in an induction furnace and adding a magnesium-rich magnesiumnickel alloy immediately before casting into an ingot. Specifications 257,604, [Class 82 (i)], 376,727 and 397,132 are referred to.
Patent GB-700243-A (GB)
Title: Electric signal translating circuits employing transistors
IPC: H03F1/56
Filed: 1950-05-30
Abstract: 700,243. Semi-conductor amplifier circuits. WESTERN ELECTRIC CO., Inc. May 30, 1950 [June 1, 1949], No. 13461/50. Class 40 (6) A signal amplifier circuit comprises a transistor having the output terminals connected between the base and a point common to the external circuits of the three electrodes, the operating conditions being such that the input terminals present a negative impedance, and the output terminals a positive impedance. Fig. 2 shows a two stage phase-inverting amplifier in which the input signal 13 is applied to the base electrode 5 of transistor 1, which has its collector 3 coupled to the emitter 7 of the second transistor 6. The load RL is connected between base electrode 9 of the second transistor and ground. The emitter 2 of the first transistor and collector 8 of the second transistor are grounded. It is shown that if α sufficiently exceeds unity, the impedances presented by the output of the first stage, and by the input of the second stage may be negative, and while the overall amplification is approximately equal to that of a single stage, the final output impedance is positive and half that of a single stage and thus may approximately be made equal to that of the input impedance. The conditions necessary for stability, and the biasing arrangements are discussed, and a modification is described, Fig. 5 (not shown), in which the bias batteries are all connected to ground. Fig. 6 shows an alternative arrangement (the bias circuits being excluded for simplicity) in which the emitter 2 of the first stage and the collector 8 of the second stage are connected to ground via a resistor 26. It is shown that this resistor introduces negative feedback to improve stability. Fig. 7 shows a single stage amplifier, similar to that used for the second stage of Fig. 2, and resistance Rs is provided in series with the input signal to ensure stability. The resistance may be replaced by a two-terminal network. Specifications 694,021 and 700,237 are referred to.
Patent GB-135053-A (GB)
IPC: G07C1/20
Abstract: 135,053. Marks, E. C. R., (Manufacture Controlex Soc. Anon.). Jan. 29, 1919. Watchmen's clocks.-The perforating device of a watchman's clock consists of a series of spring- supported punches a between which and a die k the clock-rotated card passes. Depression of the punches is effected by projections e on the key striking blade springs g interposed between the key and the punches. Complete insertion of the key before turning is ensured by the provision of a part e<0> co-operating with a slot in the casing
Patent GB-1213199-A (GB)
Title: Production of cyano compounds
Inventor: KOLLAR JOHN
IPC: C07C/
Filed: 1968-03-20
Abstract: 1,213,199. Cyano compounds and the reduction thereof. HALCON INTERNATIONAL Inc. 20 March, 1968 [20 March, 1967; 15 Sept., 1967], No. 13537/68. Heading C2C. 1,4 - dicyanobutadiene - 1,3 is recovered from a mixture with 1,4 - dicyanobutene which is produced by reacting acrylonitrile in the presence of a Group VIII noble metal catalyst and an electron-pair donating ligand at a temperature in the range of 0‹ to 300‹ C. at a pressure between sub-atmospheric and about 1000 p.s.i.g. Solvents may be used which are inert with respect to the acrylonitrile and should be less strongly co-ordinated with the noble metal than the ligand chosen for the catalyst system. Noble metal catalysts of this invention are restricted to ruthenium, rhodium, palladium, osmium, indium and platinum, any of which may be used alone or in combination. The dicyano mixture obtained may be reduced in the vapour phase by passing it together with an excess of hydrogen over a palladium on carbon catalyst at e.g. 280‹ C. to yield hexamethylene diamine.
Patent GB-184566-A (GB)
Title: Improvements in hair curlers
IPC: A45D2/32
Filed: 1921-05-13
Abstract: 184,566. Macnamara, J. J. May 13, 1921. Hair-waving. - A stem 3, Fig. 3, extending through the bodv 1 has an endpiece 2 and a squared end 4 upon which is slidably mounted a knob 5. A spring 6, housed in the knob, bears against a plate 10 screwed to the end of the stem 3, forcing the knob 5 against the body 1. Rounded teeth 7, 8, Figs. 1 and 2, are provided on the body and knob, forming a clutch which permits the rotation by hand of the body part relative to the end-piece 2 when the hair has been fastened thereon, but prevents untwisting under the tension of the coiled hair. The Provisional Specification states that the end piecemay be of spiral form.
Patent GB-193332-A (GB)
Title: Improvements in plate, cup, tumbler and like racks for domestic use, and display
IPC: A47J47/16
Filed: 1922-05-15
Abstract: 193,332. Reid, L. H. May 15, 1922. Plate, dish, and like racks.-A plate, cup, tumbler, or like rack for domestic use and display comprises a curved metal plate A, having inverted U- shaped slots B for the reception of the articles. A stiffener D is formed by cutting the plate A at d<1> and bending the strip inwards. Holes H for hanging are provided. A number of racks, each having slots B of uniform width, may be attached to a common back plate the bottom edge of which is bent for draining purposes. Strips are punched in from the curved metal plates A to form slots B and stiffeners. Racks cut in plates A of circular, oval or triangular section may be mounted and revolved upon a centre stand. The slots B may be formed by severing one edge and flanging as shown in Fig. 11; or the intervening ribs may be shaped as shown in Fig. 12.
Patent GB-873952-A (GB)
Title: Improvements in spiral staircases
IPC: E04F11/032
Filed: 1960-04-19
Abstract: 873,952. Spiral balusters. SIBENALER, N. April 19, 1960 [April 15, 1959 ; April 8, 1960], No. 13728/60. Class 45. [Also in Group X] In a spiral staircase comprising steps 1 having tubular portions 3 threaded on to a central vertical post 4, separate railing elements 6 serve to fix the steps in angular relationship with respect to one another. Each rail 6 comprises an L-shaped tube with threaded ends 8, 11 for securing it to an adjacent rail and an adjacent step respectively. The end 11 passes through a spacer tube 5 extending downwardly from one corner of the associated tread and through a hole 12 in the opposite corner of the next tread. An additional bar serves to support the handrail section. In a modification the bar 7 is omitted and two rails 6 are provided for each step.