baber/WOPTO huggingface dataset:
Patent GB-643202-A (GB)
Title: Improvements in and relating to fluid operated electric circuit breakers
IPC: H01H33/32
Filed: 1945-11-02
Abstract: 643,202. Fluid-break switches. BRITISH THOMPSON-HOUSTON CO., Ltd. Nov. 2, 1945, No. 29151. Convention date, Nov. 7, 1944. [Class 38(v)] The movable contact 3 of a fluid-blast circuit-breaker is operated by two pistons 19, 20 working in cylinders 22, 23 and interconnected by a rack 21 engaging a pinion 24 on a shaft 25 to which the contact 3 is connected by a link 43 and an arm 41. Upon operation of a valve 26, fluid, e.g. air, is supplied to cylinder 22 and pistons 19, 20 move to the left, thereby rotating the shaft 25 through about 180 degrees with toggle 41, 43" overset. Simultaneously, a cam 46 on shaft 25 opens a blast valve 14 to cause a blast of fluid across the contacts. The circuit-breaker is closed by opening a valve 28 and passing air into cylinder 23, whereupon the reverse movement of the parts takes place. The movement of the pistons 19, 20, is retarded by pistons 30, 31 coupled by a rack 32 engaging the pinion 24 and working in cylinders communicating by check valves 35, 37, with cylinders 22. 23. In Figs. 3, 4 (not shown), the shaft 25 operates all poles of a threephase circuit-breaker and a manual operating-lever can be put on the shaft 25 and interlocked with a valve which prevents application of the lever unless the valve is opened to exhaust the pressure gas to atmosphere. Specification 544,017, [Group VIII], is referred to. The Specification as open to inspection under Sect. 91 states that the pistons 30 and 31 may be dispensed with and that the pistons 19 and 20 may alternately function as the operating and retarding pistons. This subject-matter does not appear in the Specification as accepted.
Patent GB-1503968-A (GB)
Title: Ether-linked aryl tetracarboxylic dianhydrides
IPC: C07B61/00
Filed: 1975-07-11
Abstract: 1503968 Tetracarboxylic dianhydrides NATIONAL AERONAUTICS & SPACE ADMINISTRATION 11 July 1975 [16 July 1974] 29193/75 Heading C2C Novel tetracarboxylic dianhydrides of general formula wherein Rf is a perfluoroalkylene group -(CF 2 ) n - or a perfluoroalkylene ether group -(CF 2 ) m -O-(CF 2 ) m - in which n=2-10 and m=1-10, are prepared by reacting 3,4-bis-(trifluoromethyl) phenol and a perfluoroalkanedioyl halide where X is F, Cl or Br, in a molar ratio of at least 2 : 1 to produce the corresponding 3,4-bis- (trifluoromethyl) phenol perfluoroalkane dioate, fluorinating the latter to the corresponding 3,3<SP>1</SP>,4,4<SP>1 </SP>- tetrakis - (trifluoromethyl) - α,# - diphenoxy polyfluoroalkane, hydrolysing the latter to the corresponding 3,31,4,41-tetracarboxylic acid-α, #-diphenoxy polyfluoroalkane and dehydrating the acid to give the dianhydride. Preferably n is 4-6. In the examples 1,5-diphenoxydecafluoropentane - 3<SP>1</SP>,3<SP>11</SP>,4<SP>1</SP>,4<SP>11</SP> - tetracarboxylic acid dianhydride is prepared. 3,4-Bis-(trifluoromethyl) phenol (I) is obtained by diazotization of 3,4-bis-(trifluoromethyl) aniline. 3,4 - Bis - (trifluoromethyl) phenyl hexafluoroglutarate (II) is prepared from the phenol (I) above and perfluoroglutaryl chloride. 3<SP>1</SP>,3<SP>11</SP>,4<SP>1</SP>,4<SP>11</SP> - Tetrakis - (trifluoromethyl) - 1,5- diphenoxydecafluoropentane (III) is obtained by treating the compound (II) above with HF/SF 4 . 1,5 - Diphenoxydecafluoropentane - 3<SP>1</SP>,3<SP>11</SP>,4<SP>1</SP>,4<SP>11</SP>- tetracarboxylic acid is produced by the acid hydrolysis of the compound (III) above.
Patent GB-307521-A (GB)
Title: Improved process for increasing the yield in photochemical gas reactions
IPC: B01J19/12
Filed: 1927-11-02
Abstract: 307,521. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Nov. 2, 1927. Radiations, treating substances with. - In effecting reactions in gases, to which metallic vapour has been added, by treatment with radiations from an electrical discharge in metallic vapour, the gas is repeatedly exposed to the radiations, the time of each exposure being limited to prevent the initiation of secondary reactions. The reaction products are continuously removed from the circulating gas. Improved results are obtained by first removing impurities which retard the reaction, and by employing increased pressure. Several examples of procedure are given, of which the following are typical :-(1) a mixture of carbon monoxide and hydrogen is freed from oxygen and moisture and after being charged with mercury vapour is passed with a velocity of 90 ccm. per second through a cylindrical chamber of 3 litres capacity containing a mercury-vapour lamp 50 cm. in length. After each exposure the formaldehyde produced is removed and the gases are recirculated: (2) hydrogen with a small addition of oxygen is charged with mercury vapour or irradiated. The hydrogen peroxide produced is continuously removed by a spray of water.
Patent GB-391218-A (GB)
Title: Improvements in and relating to valve testing apparatus
IPC: G01M3/28
Filed: 1931-10-22
Abstract: 391,218. Testing valves. V I D A L, C. H., St. Andrew's Works, Slough, Bucking- hamshire, and LUCAS, Ltd., J., Great King Street, Birmingham. Oct. 22, 1931, No. 29368. [Class 135.] A device for testing the fluidtightness of internal-combustion engine and similar valves comprises a hollow body part a adapted to make a close joint with the part around the seating fitted with means for pressing the valve on its seat and associated with means for producing a vacuum in the part a together with an appropriate indicator. In the form shown in the Figure, the body a is fitted with a packing ring b for engagement with the part c and is fitted internally with a pressing member d, the outward movement of which is limited by a stop ring f. The member d has a central aperture for the passage of air and is loaded by a helical spring l which also acts on a piston h provided with a packing ring i. The piston-rod j has a manipulating head k and has graduations marked thereon so that when the head is depressed and released the device is held against the part c and the rate of return or the final position of the piston gives an indication of the tightness of the valve. The piston rod may be fitted with a vacuum gauge. In a modification the body a is fitted with a pressing member secured to a diaphragm and a separate push actuated exhausting device is coupled by a pipe to the chamber a.
Patent GB-1084641-A (GB)
Title: Extrusion blow-moulding apparatus
IPC: B29C48/09
Filed: 1965-07-12
Abstract: 1,084,641. Extrusion/blow moulding. STERLING EXTRUDER CORPORATION. July 12, 1965 [Sept. 30, 1964], No. 29453/65. Heading B5A. The extruder of an extrusion-blow moulding apparatus has a die head 5 which is in line with the screw 2 and in which is located a spreader mandrel 14, the conical tip 10 of which defines with the surface 6, the extrusion passage. The mandrel 14 has a central movable part 12 the conical trip 13 of which defines with the surface 6, the extrusion outlet. To provide a parison of varying wall thickness the mandrel part 12 is movable in accordance with a predetermined programme by an operating shaft 21 connected thereto by two links 23, the shaft being controlled by an hydraulic motor controlled by a pilot valve 39 actuated by a linkage 48, 47 controlled by a programme cam 31.
Patent GB-320236-A (GB)
Title: Adjustable reamer
IPC: B23D77/04
Filed: 1928-10-12
Abstract: 320,236. Hunger, L. Oct. 12, 1928. Reamers.-An adjustable reamer comprises a body a slotted to receive blades b and bored internally to accommodate a screwed tapered pin c by which the blades are adjusted. The blades have bevelled ends and are locked by conically flared nuts and lock nuts d, e, screwing on the exterior of the body. The pitch of the screw on the pin c is of one millimeter and the ratio of the taper is 1 to 10, and in order to render adjustments of the blades of one hundredth of a millimeter possible. a millimeter scale f is provided in a slot on the pin and a central line on the scale is adapted to co-operate with a circular scale on the end of the body a.
Patent GB-908877-A (GB)
Title: Improved method for pumping gases at low vacuum pressures
IPC: H01J9/385
Filed: 1960-08-26
Abstract: 908,877. Discharge apparatus. UNITED STATES ATOMIC ENERGY COMMISSION. Aug. 26, 1960 [Oct. 16, 1959], No. 29520/60. Class 39 (1). [Also in Group XXVIII] In a getter pump or getter ion pump the cavity is exposed to gaseous overpressure and the getter adsorbs the ions or molecules of the overpressure and then desorbs, the desorbed ions or molecules being absorbed with an oil diffusion or similar pump. Pre-evacuation may be by the diffusion pump 118, Fig. 1, and/or getter pump. The getter wire 46 is fed through a water-cooled tubular device 27 and is evaporated by electron beam bombardment from cathode 60 and focusing mesh 66 on to wall 11. The getter wire is of Mo, W, Ta, Zr, Ti, Nb, Re, Ba, Al, Rh, Th, U or alloys thereof and is fed from a spool 47. In a modification, Fig. 3 (not shown), the getter wire is evaporated on to two cathode plates. The getter pump attains the desired vacuum which is maintained by the oil diffusion pump. In general collecting surfaces and/or the walls of the apparatus are coated with getter. A liquid metal seal for shafts 57, 58 is composed of 62.5% gallium, 21.5% indium, 16% tin. The gas may be H 2 , A, deuterium and/or tritium or air, and a magnetic field may be used. The device to be evacuated may be a mass spectroscope, plasma containment device, particle accelerator controlled thermonuclear reaction device or the source.
Patent GB-860359-A (GB)
Title: Improvements relating to brazed light alloy heat-exchangers
Inventor: WALKER SIDNEY JAMES
IPC: F28F9/00
Filed: 1958-09-16
Abstract: 860,359. Heat exchangers. MORRIS MOTORS Ltd. Aug. 31, 1959 [Sept. 16, 1958], No. 29576/58. Class 64(3) In a heat exchanger in which spaced tubes of narrow cross-section each formed from a pair of rectangular tube walls 3 spaced apart by tube noses 5, extend between headers each comprising a cover 1 and a tube plate assembled from strips 4, the header covers 1 are flanged at the base and formed with a pair of inwardly directed grooves adapted to receive corresponding projections 8 at the ends of the tube walls 3, similar projections on the tube noses 5 and also the ends of the tube plate strips 4. Secondary heat transfor surfaces 6, 7 are provided as shown within and between the tubes. The tube walls 3a at each side of the matrix are extended beyond the location of the tube plate to form the sides of the header tanks.
Patent GB-371763-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/143
Filed: 1931-10-26
Abstract: 371,763. Slicing-machines. NAAMLOOZE-VENNOOTSCHAP MAATSCHAPPIJ TOT VERVAARDIGING VAN SNIJMACHINES VOLGENS VAN BERKEL'S PATENT EN VAN ANDERE WERKTUIGEN and BERKEL, W. A. VAN, 33, Boezemsingel, Rotterdam, Holland. Oct. 26, 1931, No. 29610. [Class 28 (ii).] The slice receiver of a slicing-machine is extended beneath the knife to intercept and accommodate the scraps of meat &c. falling from the knife. The receiving plate and its extension is shaped to correspond with the shape and arrangement of the knife bracket. In Fig. 2 the slice-receiving plate 10 is provided with a slot which fits around the knifesupporting bracket 7 leaving a portion 13 of the plate below the knife 3. The front end of the plate nests against the rib 7a. In Fig. 4 the knife bracket is designed for a motor-driven machine, the space between the main plate 31 and the ribs 32 being occupied by the transmission between the motor shaft and the knife shaft, and the space between the ribs 33 by the drive from the knife to the reciprocating carriage. The receiving plate 10 abuts against the front rib 32 and has a portion 34 extending between the bracket 31 and the base 1. In a further modification wherein the knife is motor driven and is journalled in an overhanging bracket, the receiving plate is of plain rectangular form and extends beneath the knife. The scrap-receiving portion may be upturned at its free end and be channelled in section to prevent the scraps from falling off the extension.
Patent GB-817390-A (GB)
Title: Improvements in deflected-prong lock washers
Inventor: POUPITCH OUGLJESA JULES
IPC: F16B39/24
Filed: 1955-10-18
Abstract: 817,390. Locking nuts. ILLINOIS TOOL WORKS. Oct. 18, 1955, No. 29726/55. Class 89(1) A sheet-metal locking-washer comprises an annular-body 12, Fig. 1, with radialprongs 22, 24, Fig. 2, deflected with twisting to extend axially beyond the body. The roots of the prongs are of substantiallyequal circumferential-width, but the tips of alternate prongs 24 are of greater circumferential width than the remainder 22. As the washer is compressed, prongs 24 will be flattened until prongs 22 dig in.
Patent GB-979933-A (GB)
Title: Continuous casting of thermoelectric materials
IPC: H01L35/16
Filed: 1962-08-02
Abstract: 979,933. Continuous casting - machines. MERCK & CO. Inc. Aug. 2, 1962 [Aug. 21, 1961], No. 29736/62. Heading B3F. [Also in Division H1] Thermo-electric material such as a bismuthselenium - antimony - tellurium composition is melted in a reservoir 4 cooled in a mould zone 9 and continuously withdrawn therefrom as a solidified rod. The reservoir and mould zone are formed in a graphite tube or a quartz tube which is coated with carbon by passing therethrough an argon stream containing acetone vapours while the tube is maintained at a temperature of 900-1000 C. and the casting is withdrawn by a seed rod 14 in a holder 15. A positive pressure is applied to the liquid material by inert gas applied through a line 18, or a large liquid head of material in the reservoir may be used.
Patent GB-605477-A (GB)
Title: Improvements in or relating to pipe joints
IPC: F16L13/11
Filed: 1945-11-08
Abstract: 605,477. Pipe joints. DEMPSTER, G. H. Nov. 8, 1945, No. 29776. [Class 99 (i)] In a joint for earthenware or concrete pipes, a sleeve 1 having a conical bore surrounds the abutting ends of the pipes, the recess 2 being filled with mortar or other jointing material. The small end of the bore is slightly less in diameter than the pipes, and the sleeve rests against a shoulder 5 formed by the reduced end 6 of the pipe 3, the reduced end being about half the length of the sleeve.
Patent GB-377852-A (GB)
Title: Improvements in and connected with draught excluders
IPC: E06B7/20
Filed: 1931-10-27
Abstract: 377,852. Draught excluders for doors. AYLIFFE, H., 7, Monahan Avenue, Purley, Surrey. Oct. 27, 1931, No. 29784. [Class 20(iii).] A draught excluder strip 1, of the sliding-bar kind for the bottoms of doors, is mounted on torsion springs 6 bedded in the strip and screwed to the door, and is depressed by a stud 2 therein contacting with a plate or the like on the hinge post. The arms of the springs 6 may be on opposite sides of the strip and one arm may be replaced by a pivoted rod.
Patent GB-602671-A (GB)
Title: Improvements in or relating to latches or lock devices
IPC: E05C1/12
Filed: 1945-11-08
Abstract: 602,671. Door latches. PEDERSEN, J. B. M. Nov. 8, 1945, No. 29804. Convention date, April 11, 1944. [Class 44] In a door latch of the type having a bolt 3 slidably or pivotally mounted in a casing and operated by a pivoted handle 11 mounted on the casing and engaging the bolt through an opening 8 in the cover plate 2, the handle pivots 12 are disposed in closed guides 14 on cover-plate and situated on opposite sides of the opening 8. The guides 14 which may be formed in projections 13 are open at their lower ends and the pivots are inserted as the handle is passed through the opening 8. The pivots 12 are retained in the guides in one embodiment by pins 15 on the base plate 1 of the casing. In another form shown in Fig. 4 the closed ends 16 of the grooves 14 are inclined and the pivot end of the handle portion is shaped to co-operate with the cover plate 2 to prevent movement of the pivots away from the closed ends of the guides.
Patent GB-633981-A (GB)
Title: Improvements in or relating to the manufacture of small masses of solid matter enclosed in paper or like strips
IPC: B65B9/02
Filed: 1947-11-10
Abstract: 633,981. Packing. HERTEX CRACKERS & NOVELTIES, Ltd., HYATT, A., and KENT, F. G. Nov. 10, 1947, No. 29836. [Class 94(i)] [Also in Group XXI] Apparatus for packing small masses of solid matter in paper or like strips comprises means for continuously feeding a paper sheet from a roll to an outlet, a continuously revolving cylinder provided with projections to deposit paste material at spaced intervals on the sheet and means for applying a protective covering to the sheet. In the example, strips of amorces for toy pistols are made by continuously feeding a paper sheet 2 to pressure rollers 4 from a roll over a platen 1 where small masses 11 of explosive material are deposited at spaced intervals on the paper by rubber projections 6 on a cylinder 5. Furthermore the explosive material in the form of a paste is supplied to the cylinder 5 by a distributing roller 7 having a smooth resilient surface. In addition a continuous paper sheet 8, coated with adhesive by means 10, is fed from a supply roll 9 through the pressure rollers so as to cover the treated sheet 2. After passing through the rollers the composite sheet is dried by passing it below a radiant heater 12. Heaters may be arranged on both sides of the strip. After drying the sheet is divided longitudinally to form continuous strips. The pressure rollers may be covered with rubber, felt or other resilient material. The apparatus may be used for packing solid pharmaceutical preparations.
Patent GB-482806-A (GB)
Title: A supercharged internal combustion engine which can be used as required either as a gas engine or as a diesel engine
IPC: F02B11/02
Filed: 1937-11-01
Abstract: 482,806. Convertible gas and Diesel engines. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. Nov. 1, 1937, No. 29841. Convention date, Dec. 28, 1936. [Class 7 (ii)] An engine convertible for use as a gas engine or a Diesel engine, when working as the former, is first supplied with scavenging-air, then draws in a charge of gas, and is finally supercharged with further compressed air, while when working as the latter, the charge of gas is replaced by one of atmospheric air. The Figure shows the inlet valve 1, 2 controlling ports 3, 5, the former of which is connected to the compressed-air supply 7, while the latter is connected either to the gas supply 8 or to the atmosphere at 9 by means of a valve 10.
Patent GB-142074-A (GB)
Title: Improvements in and relating to directional wireless receiving systems
IPC: G01S3/12
Filed: 1919-12-01
Abstract: 142,074. Alexanderson, E. F. W. April 18, 1919, [Convention date]. Directive wireless signalling; aerials.- In a receiving system of the type in which two separate currents are derived from a loop aerial, one cur. rent due to (a) the action of the aerial as a directive electromagnetic loop, and the other due to (b) its action as an earthed symmetrical non.directional aerial, means are provided for adjusting as desired the phase of these currents as finally impressed upon the receiving circuit 6. The phase relation of two such currents produced by desired signals from one direction differs from the phase relation of the two currents produced by signals coming from the opposite direction. Currents due to (a) are produced in the coupling coil 4 in series with the loop antenna, whilst currents due to (b) are produced in the coupling coil 5, which is inserted above the earth connexion 3. By means of the variable coupling transformers 9 and 10, the currents induced in coils 4 and 5 are impressed upon intermediate phase modifying circuits 7 and R. The latter preferably comprise two parallel branches having different phase angle characteristics, one branch including resistance 13, capacity 14, and inductance 15, and the other branch including resistance 16 and inductance 17. The inductances 15 and 17 are coupled with the coils 18 and 19 which form part of the tuned receiving circuit 6. By the adjustment of coupling-coils 18, 19, 9, 10, the phase of the two resultant currents impressed upon the circuit 6 may be varied so that the currents produced by desired signals will add, and those produced by signals from another direction will oppose and neutralize each other in the receiving circuit 6. Resultant currents in this circuit are impressed upon the grid circuit of a thermionic detector 22. It is preferable that the antenna and the intermediate circuits 7 and 8 should be aperiodic in order to render adjustment more independent of frequency variations.
Patent GB-1259918-A (GB)
Title: Tris-(azidosulphonylphenyl) isocyanurates
Inventor: ULRICH HENRI
IPC: C08K5/42
Filed: 1970-06-19
Abstract: 1,259,918. Isocyanurate blowing and crosslinking agents. UPJOHN CO. 19 June, 1970, No. 29974/70. Headings C3C, C3E and C3P. [Also in Divisions C2 and G2] Compounds of the formula (I) where R is C 1-6  alkyl or halogen and is attached to any position of the benzene ring provided that at least one of the positions 3, 4 or 5 is unsubstituted; n is 0, 1 or 2; m is 1 or 2; and the -SO 2 N 3  groups are attached to positions 3, 4 or 5 of the benzene ring are used as blowing agents for, e.g. polyethylene, polypropylene, natural or butadiene/acrylonitrile rubbers, styrene/butadiene copolymers or PVC, when they are mixed with the polymer together with other suitable ingredients and heated to 110- 200‹ C. for generally 1-10 minutes, or they are used as photo-crosslinking agents for any polymers having carbon to hydrogen bonds. In examples, a methyl vinyl ether/maleic anhydride copolymer and polyethylene are cross-linked.
Patent GB-1450415-A (GB)
Title: Process of packing meat
IPC: A23B4/06
Filed: 1973-06-25
Abstract: 1450415 Meat treatment J SAINSBURY Ltd 4 June 1974 [25 June 1973] 30083/73 Heading A2D A process for packing raw red meat comprises removing at least part of one of the muscles of a carcass of raw red meat within ¢ to 5 hours of the animals death and forming domestic cuts thereof, vacuum packing said cuts in air-impermeable plastic bags, cooling said sealed bags in a coolant having a temperature of 23‹F to 60‹F for up to 72 hours without freezing the meat, the rate of cooling of the muscle being such that a consistent rate of fall of temperature is achieved throughout the muscle, and storing said bags at 28.5‹F to 45‹F and for a period sufficient to allow maturation of the meat but without freezing. The packed cuts may be cooled in air or water. The bags may be of a nylon-polyethylene laminate material.