baber/WOPTO huggingface dataset:
Patent GB-1306392-A (GB)
IPC: F16B12/14
Filed: 1970-10-08
Abstract: 1306392 Toy construction sets B DEININGER 8 Oct 1970 [10 Oct 1969] 47993/70 Heading A6S A toy construction set comprises elements with a square centre or middle plate 10 and two lateral limbs 12, which are connected with the centre plate 10 via a curved portion 14. The middle plate 10 has three holes 16 arranged respectively in a regular arrangement along each edge and the lateral limbs 12 are provided with holes 18. The holes 16 and 18 are aligned with each other and their axes lies in common planes 20 which run perpendicularly to the centre plate 10 and the lateral limbs 12. The web height of 12 is approximately a quarter of the length of the side of a square. The connecting elements shown in Fig. 2 consist of a screw-threaded sleeve 20 and a screw or bolt 22. The sleeve 20 has a cylindrical smooth outer surface with a diameter corresponding to the hole diameter and is provided with an internal screw thread. At the rear end the screw sleeve 20 is provided with a head 24. Preferably the heads 24 and 26 are constructed so that they can be tightened without using any tool. An axle optionally with a wheel or steering roller may be fixed on the head of the bolt 22.
Patent GB-1469577-A (GB)
Title: Crystalline uridine-5-diphosphate glucose disodium salt
IPC: C07H19/10
Filed: 1974-11-06
Abstract: 1469577 UDPG. 2Na YAMASA SHOYU KK 6 Nov 1974 [8 Nov 1973] 48001/74 Heading C2P Crystalline uridine-51-diphosphate glucose disodium salt, which when defined by specified X-ray data is claimed per se, is produced by sequentially: (a) preparing a saturated solution of said salt in a mixture of water and a hydrophilic organic solvent at a pH of 1-9; (b) bringing the solution to the point of turbidity or incipient turbidity by either (i) adding more of the same or a different hydrophilic organic solvent or (ii) cooling; and (c) allowing the desired product to precipitate at a temperature which is constant (e.g. room temperature- 70‹ C.) or which falls at not more than 5‹ C./hr. Step (a) is preferably effected by gradually adding the organic solvent to an aqueous solution of said salt containing 3-70 wt. per cent thereof, and, by continuing said addition, may be combined with variant (i) of step (b). Step (c) may be effected with or without stirring, seeding or further additions of organic solvent. Specificed solvents are C 1-4  alkanols, ethylene glycol, tetrahydrofuran, dioxane, acetone and mixtures thereof.
Patent GB-980545-A (GB)
Title: Improvements in and relating to tractor driving arrangements
IPC: E02F9/20
Filed: 1962-12-20
Abstract: 980,545. Friction clutches; controlling clutches; variable speed and reverse gear. C. E. MELROE, and L. J. KELLER. Dec. 20, 1962 [Oct. 23, 1962], No. 48076/62. Headings F2C, F2D and F2L. [Also in Division B7] A tractor driving mechanism comprises a split pulley drive, Fig. 6, wherein the expansion of the driving pulley 35 is controlled by the pressure of oil in a space 42 and that of the driven pulley by a spring 49, the driven pulley being mounted on a driving shaft 46 which also mounts driving sprockets 56. The drive from each sprocket 56, Fig. 4, located one on each side of the vehicle, is taken to a pair of sprockets 61, 62 mounted on clutches 63, 64 which also mount output sprockets 92 connected by a chain 115 to a main driving sprocket 116 fast with a sprocket 118 connected by chains 125 with sprockets 126 driving the vehicle wheels. Each clutch, 63 (or 64), Fig. 7, comprises a plate 70 connected to the sprocket 61 (or 62), and a plate 90 fast with the output sprocket 92, the plates 70 and 90 being mounted by roller bearings 91 and end thrust bearings 86 and 93 upon a shaft 71 through which are passages 94 for lubricating the bearings and clutch plates. The clutch actuating mechanism comprises a thrust member 99 threadedly mounted on a sleeve 96 and having an actuating lug 100 connected to a link 101, Fig. 8, biased to a mid position by a spring 105. The members 99 are rotated in the same direction through links 101, 106, 107 from a lever 110 and the sleeves 96 on the clutches 63 and 64 are oppositely threaded so that movement of lever 110 in one direction actuates one clutch whereby the vehicle wheels are driven in one direction and movement of lever 110 in the opposite direction actuates the other clutch and the vehicle wheels are driven in the opposite direction. Specification 980,546 is referred to.
Patent GB-1083597-A (GB)
Title: Preparation of carboxylic acid esters
IPC: C07C69/00
Filed: 1964-11-27
Abstract: Substituted allyl esters are prepared by reacting a tertiary olefine in the presence of a palladium salt with a source of carboxylate ions, in an anhydrous polar solvent at from 50 DEG  to 150 DEG  C. Isobutylene, 2-methyl-2-butene, 2 - methyl - 1 - butene, 2 - methyl - 2 - pentene, 3-methyl-3-octene and 1-methyl-1-cyclohexene are mentioned and alkali or alkaline earth metal carboxylates with 1-20 carbon atoms, e.g. sodium salts of acetic, propionic, butyric and caproic acids may be used, or may be prepared in situ.  Solvents may be acetonitrile, dimethyl sulphoxide and dimethylformamide or mixtures of carboxylic acids, e.g. acetic acid with hydrocarbons such as pentane, hexane, iso-octane and benzene.  Palladium halides, nitrates, sulphates and carboxylates may be used, preferably palladium chloride, and the metal may be regenerated in situ by oxidizing agents such as ferric halides, p-benzoquinone, cupric chloride, nitrogen oxides, copper and iron carboxylates.  Examples describe the preparation of methallyl acetate from isobutylene, and allyl acetates from 2-methyl-butene-1 and 2-methyl-butene-2. Reference has been directed by the Comptroller to Specification 993,066.
Patent GB-1391978-A (GB)
Title: High voltage switchgear
IPC: H02B13/075
Filed: 1972-10-20
Abstract: 1391978 Switchgear structures B B C BROWN BOVERI & CO Ltd 20 Oct 1972 [22 Oct 1971] 48433/72 Heading H1N In a high voltage switchgear structure comprising a line 2 incorporating an isolator 5, 6 for isolating a conductor 3 from the line and an earthing switch 8, 9 for connecting the conductor 3 to a metallic gas-tight casing 1, a measuring electrode 11 is provided near to and insulated from the casing 1 and opposite the conductor. A voltage measuring device connected between the electrode and the casing utilizes the voltage divider formed by the natural capacities C 1  . . . C 5  between the parts 1, 2, 3 and 11 to measure the voltage at the conductor 3 and so indicate when the isolator is open or closed. The electrode 11 may be annular and surround the movable contact 9 of the earthing switch.
Patent GB-1473110-A (GB)
IPC: F16C1/20
Filed: 1974-09-20
Abstract: 1473110 Bowden mechanisms AUTOMOTIVE PRODUCTS Ltd 20 Sept 1974 [17 Oct 1973] 48469/73 Heading F2K A Bowden type cable in which the conduit 13 is lined internally by a tubular liner 16 of thermoplastics material and wherein the core 10 is coated with a layer 12 of synthetic plastics material which has a greater percentage deformation under load than has the thermoplastics material of the tubular liner 16 when the two materials are tested under similar conditions. As shown, the liner 16 is of Nylon whilst the core coating layer 12 is of a high density polyethylene. The core 10, which is a wound steel wire cable, carries a steel end fitting 11 crimped thereon, the end fitting 11 being coated with P.T.F.E. by a spray process to reduce operating friction in its pin receiving bore 19. The conduit 13 comprises a double start helical coil 14 of steel wire coated in its outer surface with a layer of weatherproof polyvinyl chloride.
Patent GB-1072691-A (GB)
Title: Pressure sensitive adhesive
Inventor: WELLER BRION
IPC: C09J123/08
Filed: 1962-12-22
Abstract: A pressure-sensitive adhesive composition is substantially wax free and comprises an amorphous copolymer of ethylene and vinyl acetate, and either natural rubber or a synthetic polymer having a molecular weight of at least 1000, and an amount of organic solvent or dispersing medium at least 20% by weight of the composition, removal of which yields adhesive. Resins, fillers and curing agents may be present. In examples are used: said copolymers; polyvinyl isobutyl ether, liquid polyvinyl ethyl ether, liquid polyvinyl isobutyl ether, liquid polybutene polychloroprene, aqueous polyvinyl alcohol, hydrogenated resin ester, surface-active agent, petroleum naphtha, isopropyl acetate, toluene, water, china clay, metaphenylenediamine.
Patent GB-1528087-A (GB)
Title: Method of extracting a hyperglycemic factor
IPC: A61K35/28
Filed: 1976-11-22
Abstract: 1528087 Hyperglycemic factor A THOMAS 22 Nov 1976 [21 Nov 1975 (2) 10 Nov 1976] 48593/76 Heading C3H A process for the preparation of a hyperglycemic factor, comprises treating red bone marrow either with water to form an aqueous extraction, or with acetone to form an "acetonic powder" as hereinbefore defined, and treating the filtered aqueous extraction or the acetonic powder, at a temperature from 60 to 100 C., with an alkaline buffered solution of pH 7À5 or an acid buffered solution of pH not greater than 4À0, adding alcohol to the resulting mixture, filtering it, and concentrating and/or purifying the resulting product. The extraction may be performed, not on the actual untreated ground material, but on an "acetonic powder" of red bone marrow. This acetonic powder is prepared by grinding the crushed red marrow directly at high speed in pure acetone (e.g. 1 kg red marrow pulp to 5 litres acetone), repeating the operation at least twice; the ground material is then strained to separate out residual bony particles, and finally dried. The alkaline buffered solution may be Na 2 HPO 4 , and the acid buffered solution is preferably an acetate solution. The extraction of acetonic powder is preferably performed using a 0À1 M phosphate buffer having a pH of 6À8, for example a mixture of disodium hydrogen phosphate and monopotassium phosphate may be used. The extract may be purified by precipitation, using ethanol, methanol, zinc acetate, methylalmethanol mixtures, to produce a supernatant layer containing a high concentration of the required compound.  Extraction of the acetonic powder is preferably carried out using aqueous alcohol containing 5 to 80% alcohol, the acetonic powder itself being used as buffer. Alternatively the extract may be purified by cryoprecipitation.
Patent GB-1155630-A (GB)
Title: Automated Slitting System
IPC: G05B19/35
Filed: 1966-11-02
Abstract: 1,155,630. Programmed control of machines. BELOIT CORP. Nov.2, 1966 [Jan. 5, 1966], No.49094/66. Heading G3N. A system for controlling a plurality of slitter units for dividing a supply roll of web material into smaller rolls comprises a computer, responsive to a plurality of inputs corresponding to demanded sizes, which selects a group of inputs providing a minimum of waste when the roll is divided and a plurality of positioning motors for the slitting units responsive to the selected inputs. As shown, a digital computer 11 is supplied with information on punched cards 12 derived from order data sheets 13. The computer reads and sorts the information on the cards and delivers output signals to a display unit and control console 14. The mode of display is determined by selector switches 14a, 14b and switches 14c set information relating to the operating state of the system into the computer for integration with the information from the punched tapes. The computer issues command signals to a slitter control 22, through a line 23, which controls the operation of slitter motors 24. Feedback signals, indicative of slitter position is applied to the slitter control through a line 27. A manual entry control 29 may be used to over-ride any of the command signals from the computer 11 and the distance between a slitter band and the corresponding slitter blade is adjustable in small increments by a manual entry control 31 delivering signals to the slitter control 22. A unit 20 prints a label, or prints directly on the paper, warehouse storage data. In an alternative arrangement, a digital to analogue converter is used to enable a summing circuit to be used for manual or automatic control of the positioning motors. In other arrangements the slitters are positioned by stepping motors or clutches responsive to digital signals.
Patent GB-1196587-A (GB)
Title: Improvements in or Relating to Pressure Regulating Devices
Inventor: MERCER JAMES RAYMOND
IPC: G05D16/10
Filed: 1966-11-02
Abstract: 1,196,587. Pressure-regulating valves. DEWRANCE CONTROLS Ltd. 2 Nov., 1967 [2 Nov., 1966], No. 49096/66. Heading F2V. The pressure differential across piston 5 caused by orifices 6 therein moves a needle 7 in an orifice 2 against a spring 8 to give a substantially constant exit fluid pressure for a gas burner.
Patent GB-1417525-A (GB)
Title: Method for converting hydrocarbons by cracking in the presence of a zeolite cracking catalyst
IPC: C10G11/18
Filed: 1973-10-23
Abstract: 1417525 Cracking MOBIL OIL CORP 23 Oct 1973 [19 Dec 1972] 49205/73 Heading C5E In a process for cracking hydrocarbons in the presence of a zeolite catalyst, a first feed (58) mixed with freshly regenerated catalyst (52) is passed through a first cracking zone (56) at 1000 to 1300 F. for a residence time less than ten seconds, the catalyst is separated (at 60), the separated catalyst is mixed (at 70) with freshly regenerated catalyst (72) and the mixture maintained at at least 1000 F. for at least five minutes, the mixed catalyst is then used in a second cracking zone (86) at 100 F. or above, and the catalyst from the second cracking zone is stripped (at 100) and returned to a regeneration zone (8). As shown, the cracking zones (56 and 86) and regeneration zone (8) are all risers; the lower part of the regenerator: contains a fluidized bed 6, to which regenerated catalyst can be returned by line 12. Regeneration gas is supplied at 16 and optionally also at 20, 22 and 46, so that most of the CO produced by the burning of coke is itself burned to CO 2 . Additional heat can be supplied to the regenerator by adding fuel (by line 18) to the regeneration gas. Regenerated catalyst passes by lines 52 and 74 to the first riser and the heat-soaking zone respectively, and may also be passed by line 90 directly to the second riser. Both risers discharge through cyclone separators 60 and 94 in a common vessel. Cracked hydrocarbons are taken off by lines 64 and 98, while catalyst falls into beds 70 and 100, separated by baffle 102. It is fluidized by steam from lines 80 and 104, which serves to strip it. The bed 70 serves as the heat-soaking zone, whereas catalyst from bed 100 is returned to the regenerator. The catalyst may comprise large-pore and small-pore zeolites compounded together in a common matrix material, or may be a mixture of particles of two kinds, one comprising large-pore zeolite in a matrix, the other small-pore zeolite in a matrix. In the latter case, the particles containing the small-pore zeolite may also contain a catalyst for the oxidation of-CO to CO 2 . The zeolites may be ion-exchanged, e.g. with rare earths. Matrix materials are clay and silicaalumina; oxidation catalysts are chromium oxide, copper, nickel, chromium, manganese oxide and copper chromite. Suitable feedstocks include gas oils, naphthas, residuals, cycle oils and heavy fractions from destructive hydrogenation.
Patent GB-1447335-A (GB)
Title: Method of cooling a high temperature object by high temperature water
IPC: C21D1/00
Filed: 1974-11-15
Abstract: 1447335 Quenching metal articles NIPPON KOKAN KK 15 Nov 1974 [28 Nov 1973] 49441/74 Heading C7N Water is heated in a pressure vessel to above 100‹C (but below its boiling point), and blown through a nozzle (by virtue of the pressure in the vessel) to form a spray of steam and entrained water droplets directed at a high temperature object, e.g. steel plates, slabs &c, to be cooled. Water and steam are fed to vessel 201 by pipes 210, 208 respectively, the steam heating the water to above 100‹C, and the spray emerges from nozzle 202. The pressure, level and temperature may be measured by gauges 205, 207, 206. The water may, alternatively, be heated electrically. In a modification Fig. 3 (not shown) the waste water falling from object 204 is collected, passed to a tank (215) strained and pumped back into the vessel. In a simpler arrangement Fig. 1 (not shown) water is heated to the desired temperature in the pressure vessel without steam injection, e.g. by electricity.
Patent GB-1449489-A (GB)
Title: Photographic apparatus
IPC: G03B15/04
Filed: 1973-10-24
Abstract: 1449489 Shutter mechanisms EASTMAN KODAK CO 24 Oct 1973 [24 Oct 1972] 49576/73 Heading G2A A camera has a shutter mechanism with two independent driving members, which are selectively operable, and which give two different exposure times. The first shutter driving member 15 can slide by means of a slot and pin arrangement 45, 46 and is biased leftward by a spring 47. The second shutter driving member is a lever 64 pivoted on a pin 100, and this provides the longer exposure time required when flash exposure is used. A sensing lever 60 pivoted at 66 has an end 69 which can enter into an aperture 36 in a flash unit 30 and engage with a pre-energized striker wire 38. When a flash unit is inserted into the camera socket, lever 60 is pivoted anti-clockwise so that this engagement takes place. The shutter release lever 18 is pivoted on a fixed pin 51, and is actuated by a tab 59 extending outwardly of the camera. When this is actuated in the flash mode, an intermediate drive lever 62 is lifted by the end 78 of a spring 63 on lever 18. Continued rotation of lever 18 causes stressing of spring 63, and since lever 62 is pivoted to lever 60, this latter is also lifted so that its end 69 enters the flash unit. The striker wire is hence released to cause percussive firing of the flash-lamp. The spring 63 continues to drive lever 60 further anti-clockwise. A pin 74 on lever 60 engages in a slot 108 in the second shutter driving member 64 and pivots it clockwise. A lug 104 at the end of member 64 strikes against a lug 128 forming part of the shutter blade 120, which is normally spring- biased into a rest position in which it covers the exposure aperture 24. Thus the aperture is momentarily uncovered to effect the exposure, Fig. 4, (not shown). A flag 102 at the other end of driving member 64 from lug 104 becomes visible in the view-finder 22 to indicate a fired flash-lamp. When the camera is to be operated without a flash unit, sensing lever 60 is pivoted clockwise, so that the end 69 does not extend above the top wall 10 of the camera. This clockwise movement of lever 60 causes lever 62, which is pivoted to it, to engage against a fixed stop 90, so pivoting lever 62 anti-clockwise. Lever 62 is thus disengaged from release lever 18. When lever 18 is now pressed, a lug 55 thereon disengages from a lug 48 on the first shutter driving member 15, which is now freed to move under its loading spring 47. A lug 50 at the end of member 15 strikes a lug 126 on another arm of shutter blade 120, and so pivots it to effect the exposure. (This release of member 15 also occurs during flash operation, but at a time which precludes its striking lug 126.
Patent GB-1398443-A (GB)
Title: Method and system for guiding a spinning missile
IPC: F41G7/30
Filed: 1972-10-27
Abstract: 1398443 Guiding missiles SOCNATIONALE INDUSTRIELLE AEROSPATIALE 27 Oct 1972 [29 Oct 1971 22 Dec 1971] 49711/72 Heading H4D [Also in Division F3] A method of, and system for guiding a missile towards a target involves the use of polarized radiation. In one embodiment, the radiation emitted from a pyrotechnic source 1, Fig. 6, carried by the missile is passed through a polarizing filter 4 rotating with the missile and is received by a direction-finder unit 10 after having passed through a rotating or stationary, ground-based polarizing filter 5. The signal from the unit 10 is processed in a corrective network 11 and a directional error measuring system 12 from which directional error voltages V x  and V y  are sent to the missile by a micro-wave link or conductor wires. The filter 5 has four sectors of different polarities and this enables the angular position of the missile to be determined. In another embodiment, Fig. 9, the missile M and target C are illuminated by a ground-based source E. The radiation from a pyrotechnic source 1 carried by the missile is again passed through a polarizing filter 4 and is reflected by a ground-based mirror 30 on to a dichroic screen 31 together with radiation reflected from the target. The radiation from the pyrotechnic source passes through the screen and is received by a direction-finder unit 10M after passing through a polarizing filter 5 and modulating disc 14M. However, the radiation reflected from the target is reflected from the screen 31 on to a mirror 32 and thence into a direction-finder unit 10C after passing through a modulating disc 14C. The correction signals V x  and V y  are sent to the missile as before. In another embodiment, Fig. 10, the radiation from a ground-based pyrotechnic source E<SP>1</SP> 1  passes through the filter 4 after being reflected from a mirror 33 carried by the missile M. This radiation and the unmodulated radiation reflected from the target C is received by a direction-finder unit 10 after passing through a polarizing filter 5 and modulating disc 14. In a further embodiment, Fig. 11, the radiation from a ground-based pyrotechnic source E<SP>1</SP> 1  is passed through a polarizing filter 4 and is reflected from a target C into a direction-finder unit 10 on the ground and a similar unit 10M forming part of a homing device in the nose of the missile. Respective polarizing filters 5, 5M and modulating discs 14, 14M are provided. The unit 10 guides the missile until the homing device takes over. The pyrotechnic source, Fig. 1, comprises a screen of tantalum 2 which emits radiation R 1  when heated by a pyrotechnic tracer 1 which emits neither gases nor particles. A glass thermal protection plate coated with MgO, Al 2 O 3  or corundum is placed before a polarizing filter 4. Visible, I.R. or U.V. radiation is emitted by the pyrotechnic source. The modulating discs associated with the directionfinder units may, in a modification of the units, be replaced by a mosaic of lead sulphide cells.
Patent GB-1486279-A (GB)
Title: Circuits for compensating time errors
IPC: H04N5/91
Filed: 1974-11-18
Abstract: 1486279 Variable delay devices LICENTIA PATENT-VERWALTUNGS GmbH 18 Nov 1974 [11 Dec 1973] 49777/74 Heading H4R In a circuit for correcting timing errors in a television signal 2 the synchronizing pulses are separated from the signal and compared with pulses from a reference generator 7 to provide a control signal which controls the delay in an electronically variable delay device 3 whose delay is variable from a base value t 0  by a value #t. An additional delay device 13 is included in the control signal path, or in the television signal path, so as to delay the control signal applied to the control input of the variable delay device relative the signal at the signal input to the variable delay device, by a time t 0 /2. As described the synch. pulses from the TV signal are compared with the pulses from reference generator 7 in detector 6 and the resulting phase difference signal is applied. via a low pass filter 8, to control the frequency of generator 7. The phase difference signal is also applied via band pass filter 10 and additional delay 13 to control the frequency of pulses 12 applied to step the bucket brigade delay device 3, and therefore control the delay provided thereby. An additional circuit 14 can be provided to modify the amplitude of the control signal in accordance with the rate of change of the control signal. The control signal amplitude can be varied by a factor where w is the frequency of the control signal.