baber/WOPTO huggingface dataset:
Patent GB-1352535-A (GB)
Title: Door fastening system for an electrical apparatus
IPC: F24C15/02
Filed: 1971-08-24
Abstract: 1352535 Control systems for microwave heating apparatus GENERAL CORP 24 Aug 1971 [31 Aug 1970 1 Oct 1970] 39686/71 Heading H2H [Also in Divisions E2 and F2] A door fastening system for an electrical apparatus comprises a solenoid operated switch having contacts 1a and 1b connected in a selected electrical circuit of the electrical apparatus, first and second switching means 2, 3 connected in an energizing circuit for the solenoid, an electromagnet coil 4, for connection to a power supply through the first switching means 2 and a fastening operable by energization of the coil to fastening position, the second switching means 3 being closed by the fastening when operative. As shown in Fig. 5, the fastening comprises a bolt 22 movable against the action of a spring 24 to fasten the door when the coil 4 is energized. A lateral extension of the bolt flexes a member 26 to move a knob 27 to operate the switching means 3. As shown in Fig. 6, the fastening comprises a pivoted hook bolt 28 moved by an electromagnetic core 23 against the action of a spring 35 when the coil 4 is energized so that a hook 30 engages in a recess 32 on the door. The switching means is operated by a portion 36 of the bolt engaging a projection 27 of the means. The bolt may be released by de-energizing the coil or by pressing an emergency button 39 to open a switch 9 in series with the switching means 3. Fig. 4 shows a circuit for a microwave oven having a timer 7, a starter switch 8, emergency stop switches 6, 9, a magnetron cooler fan 10 and a magnetron stirrer 11. The contacts of the timer comprise the switching means 2. the circuit being operative only when the door is closed and the switching means 3 is closed.
Patent GB-849220-A (GB)
Title: New organic compounds of tin and a process for their manufacture
IPC: C07F7/22
Filed: 1956-12-31
Abstract: Polyvinyl chloride compositions are stabilised by compounds of formula:  <FORM:0849220/IV(a)/1> where R1 is a C1-C6 aliphatic radical or the cyclohexyl group, R11 is a C1-C6 aliphatic radical or the phenylene group, x is 1, 2 or 3 and Z represents a polyglycol chain of formula (CH2-CH2-O)n-CH2-CH2-OH linked to R11 by an oxygen, sulphur or nitrogen atom, n being a number from 1 to 49.  Typical compounds are tributyl tin-salicylo-polyglycollic ether: <FORM:0849220/IV(a)/2> tributyl tin -o-di-polyglycollamino-benzoate <FORM:0849220/IV(a)/3> and tributyl tin-polyglycol-thioglycollate <FORM:0849220/IV(a)/4>ALSO:The invention comprises compounds of formula:  <FORM:0849220/IV(b)/1> where R1 is a C2-C6 aliphatic radical or the cyclohexyl group R11 is a C2-C6 aliphatic radica or the phenylene group, x is 1, 2 or 3 and Z represents a polyglycol chain of formula (CH2-CH2-O)n-CH2-CH2-OH linked to R" by an oxygen, sulphur or nitrogen atom, n being a number from 1 to 49.  They may be prepared by reacting a compound of formula:  <FORM:0849220/IV(b)/2> where R1, R11, and x have the meanings above and Y is -OH, -NH2-SH,-COOH,-CONH2-SO2 NH2 or -CO,CH2,CO-, with up to 50 mols of ethylene oxide per mol of organotin compound preferably in the presence of catalysts such as sodium alcoholate, sodium or potassium hydroxide or tin tetrachloride.  The organotin starting material may be prepared by reacting organotin halides with alkali metal salts of hydroxy acids, amino acids, mercapto acids, etc.  The compounds of the invention may be used as fungicides or bactericides, as lubricant antioxidants and stabilisers for polyvinyl chloride compositions (see Group IV(a)).
Patent GB-1176501-A (GB)
Title: Leucomycins A3 to A9
IPC: C07H17/08
Filed: 1967-09-01
Abstract: 1,176,501. Leucomycins A3 to A9. KITASATO INSTITUTE and TOYO JOZO K.K. 1 Sept., 1967 [5 Sept., 1966 (4); 21 Sept., 1966 (2); 25 Feb., 1967 (2)], No. 40046/67. Heading C2A. Leuconycin components A 3  to A 9  are produced by cultivating a leucomycin-producing strain of streptomyces kitasatoensis e.g. NRRL 2486 and 2487 in an aqueous nutrient medium. The crude leucomycin is extracted from the clarified broth at pH 7À5 to 9 with a waterimmiscible organic solvent such as benzene or butyl acetate, treated with an aqueous acid (e.g. aqueous hydrochloric acid) of pH 2 to 4 and re-extracted with a water-immiscible organic solvent (e.g. benzene) at pH 7À5 to 9À0. The extract is concentrated and crude leucomycin recovered by (a) addition of petroleum ether, (b) pyophilization or (c) adjustment to pH 7À0 to 9À0. The leucomycin components A 3  to A 9  are separated by (a) chromatographic adsorption on silica gel or activated alumina and developed with benzene/acetone or benzene/methanol solvent systems, and (b) countercurrent distribution using benzene/chloroform/ methanol/citric acid buffer of pH 4À9 (20 : 6 : 20 : 8). The mixture of leucomycin antibiotics A 3  to A 9  is a white powder; mpt. 128-145‹ C., containing C = 60À00%, H = 8À80%, N = 1À68%; U.V. spectrum max. at 231 mÁ with 1% E = 353; mol. wt. 800, α] D <SP>25</SP> = - 53 degrees 1cm. (1% in chloroform); soluble in methanol, ethanol, ethyl acetate, butyl acetate, acetone, methyl ethyl ketone, benzene and chloroform; difficulty soluble in water; insoluble in petroleum ether. The antibiotics form salts with acids. They have the formula wherein R 1  is hydrogen and R 2  is acetyl (A9) or propionyl (A7) or butyryl (A5); or wherein R 1  is acetyl and R 2  is acetyl (A8) or propionyl (A6) or butyryl (A4) or isovaleryl (A3).
Patent GB-1048409-A (GB)
Title: Tuning indicator tubes
IPC: H01J31/14
Filed: 1965-09-22
Abstract: 1,048,409. Tuning indicators. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Sept. 22, 1965 [Sept. 22, 1964], No. 40323/65. Heading H1D. In a voltage-indicator tube for a stereophonic receiver, electrons projected from the cathode 3 towards the screen 2 are divided into three beams by the electrodes 13, 14, the two outer beams being subject to the control of plate electrodes 9 and 10, and the centre beam to the control of rod electrodes 11, 11a, to which a signal dependent upon the presence and intensity of a stereophonic component in the received signal is applied, the electrode geometry being such that only when the latter component is of sufficient strength to ensure satisfactory stereophonic reception is the centre beam permitted to strike the screen. Cathode 3 is surrounded by a grid 4 which is supported by three struts 4a which act as shields, and enclose control electrodes 5 and 6, to which voltages representative of the difference and sum, respectively, of the left and right stereophonic channels are applied, whereby amplified signals are produced on anodes 7 and 8, which are connected, respectively, to deflection electrodes 11, 11a and 9, 10. Electrode 12 is connected to a conductive tin oxide layer included in the screen, portions 18 and 19 preventing the impingement of secondary electrons upon the screen, and the angled inner edges 20, 21 improving the deflection sensitivity of electrodes 9, 10. A colour filter may be provided for the central beam. In an alternative embodiment (Fig. 5, not shown) electrodes 9 and 10 are of rod form, and electrodes 11, 11a are plates mounted parallel to electrodes 13, 14.
Patent GB-1399202-A (GB)
Title: Substituted bisphenols and biocidal uses thereof
IPC: A61P31/04
Filed: 1973-08-28
Abstract: 1399202 Substituted bisphenols and biocidal uses thereof CIBA-GEIGY AG 28 Aug 1973 [29 Aug 1972] 40498/73 Heading C2C The invention comprises compounds of formula wherein X 1  to X 4  independently represent halogen, hydrogen or alkyl groups with the proviso that at least one of X 1  to X 4  represents halogen. These compounds may be obtained by the reduction of a compound of formula wherein X 1  to X 4  are the same as defined above. The following intermediates are prepared in Example I: glutaric acid di-(4-chlorophenyl)- ester by the reaction of 4-chlorophenol with glutaric acid dichloride, and 1,3-bis-(2-hydroxy- 5 - chloro - benzoyl) - propane by the treatment of glutaric acid di-(4-chlorophenyl)ester with AlCl 3 . The invention also comprises a composition suitable for combatting harmful microorganisms which contains as an active ingredient a compound according to the invention together with a solid or liquid carrier.
Patent GB-946410-A (GB)
Title: Improvements in or relating to self-discharging transport wagons
IPC: B60P1/00
Filed: 1960-11-25
Abstract: 946,410. Tipping road vehicles; tip-wagons. R. TALBOT. Nov. 25, 1960 [Nov. 26, 1959], No. 40686/60. Headings B7B and B7L. A wagon comprises two body portions each of which may be tipped respectively about pins 17 by fluid pressure actuated means, and a load discharge door arrangement including box section door posts 3, 4 secured to chassis members 6 and having their inner sides in substantial alignment with the plane of doors 1, 2. The door post 3 is provided with a filling pipe 7 through which fluid for the pressure actuating means can enter a reservoir tank 3a forming part of the post 3. A pump 10 is connected by a pipe 11 to the tank, and a second pipe 12 leads to an emergency hand pump. The wagon bottom is provided with a sealing strip against which the doors close, Fig. 4 (not shown), and the doors are inwardly bent at their bottom edges in order to prevent destruction of the sealing strip. The side walls 14 of the tipping body parts, see also Fig. 7 (not shown), are provided with sealing strips 15 which engage strips on the door posts and prevent undesired leakage of load material.
Patent GB-1395074-A (GB)
Title: Dimethyl tin esters and their use as resin stabilizers
IPC: C08K5/58
Filed: 1972-09-01
Abstract: 1395074 Dimethyltin thioesters CINCINNATI MILACRON CHEMICALS Inc 1 Sept 1972 [2 Sept 1971] 40706/72 Heading C2J [Also in Division C3]  Dimethyltin bis-(octyl-thioalkanoates) having two or three carbon atoms in the alkanoate group, the octyl radical being either iso-octyl or 2-ethylhexyl, and containing not more than 0À5 weight per cent of the corresponding trimethyltin thioalkanoate as an impurity are prepared by producing (CH 3 ) 2 SnCl 2  having not more than 0À5 weight per cent of (CH 2 ) 2 SnCl as impurity by adding SnCl 4  to impure (CH 2 ) 2 SnCl 2  in an amount sufficient to react with the said impurity and heating until the amount of (CH 3 ) 3 SnCl present is not more than 0À5 weight per cent and reacting the (CH 2 ) 2 SnCl 2  thus produced with the appropriate octyl thioalkonoate. The compounds are useful as stabilizers for halogen-containing resins, especially PVC.
Patent GB-1181818-A (GB)
Title: Improvements in or relating to Dating Devices for Labelling Machines
Inventor: ROBERTS PHILIP HENRY
IPC: B65C9/46
Filed: 1967-09-07
Abstract: 1,181,818. Dating apparatus; ink ribbon mechanism. MORGAN FAIREST Ltd. 30 Aug., 1968 [7 Sept., 1967], No. 40924/67. Headings B6D and B6F. [Also in Division B8] A dating device for a labelling machine (see Division B8) which applies labels to round section containers 1, Fig. 2, comprises a holder for a date stamp 15 located to present the stamp in an aperture 13 in a presser surface 5 of the labelling station, together with means guiding an ink ribbon 16 over the aperture 13, the ribbon being intermittently fed by means operatively connected with the label applying means so that the feed movement of the ribbon occurs prior to the arrival of a container at the aperture. Ink ribbon mechanism.-The ink ribbon 16 is fed between two spools 21, the direction of feed being reversed as the ribbon on the supply roll becomes exhausted. During ribbon feed, the take-up spool is driven by a shaft 31, Fig. 5, through a bevel gear 32 and a crown wheel 33, the shaft 31 being driven by a vacuumoperated cylinder 24, Fig. 2, which reciprocates a pawl 27 to drive a ratchet wheel 29 keyed to the shaft 31. When the ribbon on the supply spool is exhausted, a feeler 37 is permitted to pivot outwardly under the influence of a spring 39, bringing the end 40 of a rod 35 into operative engagement with a cam 34 on the shaft 31, whereby further rotation of the shaft causes longitudinal movement thereof, so that a second bevel gear 32 engages the crown wheel of the supply spool, which thereby becomes the takeup spool.
Patent GB-870846-A (GB)
Title: Improvements in or relating to erasers for the erasure of sound magnetically recorded on magnetic sound records
IPC: G11B5/03
Filed: 1958-12-18
Abstract: 870,846. Magnetic records; bulk erasure. TOKYO DENKI KAGAKU KOGYO KABUSHIKI KAISHA, and HOSHINO, Y. Dec. 18, 1958 [Dec. 21, 1957], No. 40951/58. Class 40 (2). A bulk eraser for magnetic records has a case of magnetic shielding material 22 to reduce stray leakage flux and may incorporate guides for sheet records 28 or for reels of tape or wire 31. A.C. or D.C. may be initiated by a button 23 to energize core members 34, or a permanent magnet may be provided. One polepiece may incorporate a brush-form pressure member 32 to maintain the magnetically-coated face of a record S in close contact with the other polepiece. In the Fig. 18 embodiment, a record sheet S is loaded and the switch 40 is operated by a ferromagnetic member 37 only after the member has been moved to cover the potential flux-leakage gap 36. Seven embodiments are described.
Patent GB-1184899-A (GB)
Title: Process for the Drying of Green Malt
Inventor: BLASCHEK RUDOLF
Filed: 1967-09-08
Abstract: 1,184,899. Drying green malt. ERFURTER MALZEREI-UND SPEICHERBAU VEB. Sept. 8,  1967, No.41080/67. Heading C6E. [Also in Division F4] In the drying of green malt by hot air in accordance with a predetermined time/temperature relationship, the regulation and maintenance of the determined temperature so achieved solely by alteration in the flow-rate of the air.
Patent GB-1364240-A (GB)
Title: Railway vehicle bogies
IPC: B61F5/08
Filed: 1970-08-24
Abstract: 1364240 Railway vehicle undercarriages DUNLOP HOLDINGS Ltd 24 Aug 1971 [27 Aug 1970] 41183/70 Heading B7L A railway vehicle bogie has chevron type rubber springs 6, 7 loaded in shear and compression between side frames 1 and transverse substantially rigid bolster member 5, rubber spring side bearers 8 between each end of the bolster 5 and the vehicle body mounted on the bogie and pivot control means comprising two axially-aligned precompressed rubber springs 13, 14 mounted along the longitudinal central vertical plane of the vehicle body between the bolster 5 and the body. Each spring is of sandwich construction and comprises a series of rubber blocks interspaced by metal plates to which the blocks are bonded. The transverse length of the precompressed rubber springs 13, 14 is greater than their vertical depth such that due to the precompression of the springs the control means has a substantially zero vertical stiffness and a high horizontal stiffness in the longitudinal direction of the bogie and therefore transmits very little of the vehicle weight to the bolster, vertical forces being transmitted directly to side frames 1 via the side bearers 8 and the chevron springs 6, 7. The side bearers 8 may be positioned as shown at points further from the bogie longitudinal central vertical plane than the position of the chevron springs 6, 7 or may be at substantially the same position at the springs. Vertical damping may be provided by means of dampers between the bolster ends and the vehicle body if required.
Patent GB-1030136-A (GB)
Title: Improvements relating to power-operated percussive tools
Inventor: BADCOCK DAVID NORMAN WILLIAM
IPC: B25D11/00
Filed: 1963-10-23
Abstract: 1,030,136. Percussive tools. KANGO ELECTRIC HAMMERS Ltd. Oct. 16, 1964 [Oct. 23, 1963], No. 41778/63. Heading B4C. A power-operated percussive tool comprises relatively reciprocable inner and outer members 6, 7 forming an air chamber 9 between them, momentary venting means 12, 14, 19, 20 being provided in order to allow air trapped in the chamber to adjust to a substantially constant working level during normal operation of the tool and also to immobilize the outer member when it moves beyond its normal blow-striking position. The inner member 6 is in the form of a piston connected by a rod 5 to a crank 24 which is rotated by an electric motor via gears 3, 4, the piston being formed with a sealing head portion 15. The outer member constitutes a striker cylinder having an impact end adapted to strike the end 55 of a tool holder 54 described fully in Specification 1,030,137 and provided with two annular grooves 19, 20 within its bore for co-operation with the sealing head portion of the piston. In operation, the piston is reciprocated such that when the sealing head passes beyond the annular groove 19, the air trapped in the chamber 9 is compressed and thereby urges the striker cylinder rapidly forward to strike the tool holder end 55; the striker is returned to its normal position by a suction effect produced by the piston as it returns until the piston reaches the position shown in Fig. 2 where communication is made with atmosphere via grooves 14 in the piston skirt and the annular groove 20. In order to prevent damage to the tool, when the tool bit 57 is removed therefrom, due to the striker cylinder assuming a lowerthan-normal position, the second groove 20 co-operates with the sealing head so that a larger volume of air is trapped in the chamber 9 and the suction produced on the return stroke of the piston is not large enough to return the striker.
Patent GB-1367139-A (GB)
Title: Elastic suspension for seat bottoms
IPC: A47C7/30
Filed: 1971-09-08
Abstract: 1367139 Spring upholstery SOC ANON AUTOMOBILES CITROEN 8 Sept 1971 [8 Sept 1970] 41981/71 Heading A4M A seat comprises a flexible fabric platform 5 secured to front and rear frame members 8, 9 by springs 6 and hooks 7 and supported at each side by a pair of sinuous springs 11, 12 secured at each end 14 to the seat frame, the springs 11, 12 being coupled together by crimped rings 15 and being disposed on mutually perpendicular planes.
Patent GB-1430079-A (GB)
Title: High voltage electrical equipment
IPC: H01T1/15
Filed: 1972-09-11
Abstract: 1430079 Lightning arresters BOWTHORPEHELLERMANN Ltd 10 Sept 1973 [11 Sept 1972] 42022/72 Heading H2H High voltage electrical equipment such as a lightning arrester comprises a casing 7 within which components 9, 11 are located by means of members 16, at least one of the members being resilient or deformable. The components 9, 11 are spark gap units and non-linear resistor assemblies and some of the components are provided on their outer surfaces with three equally spaced projections having channels in which the three members 16 are located. The casing, which may be filled with an inert gas, is provided with a filling cover 15 and a diaphragm 14 which may operate an indicator in the event of fracture of the diaphragm. The members 16 are tubes made of nylon or acetal resin and are filled with polyurethane, epoxy resin, polysulphide materials, polystyrene or silicone rubber. Carbon or silicon carbide may be added to the filler to provide a high resistance conductive path. Alternatively the tubes may be filled with a liquid or a gas such as air or nitrogen.
Patent GB-1482918-A (GB)
Title: Assembly and method for covering a junction or discontinuity in a conduit
IPC: H02G15/188
Filed: 1973-09-10
Abstract: 1482918 Sleeve connectors RAYCHEM Ltd 9 Sept 1974 [10 Sept 1973] 42483/73 Heading H2E An assembly for protecting and shielding a junction between two coaxial cables 1, 1<SP>1</SP> comprises an outer shrinkable (preferably heatshrinkable, e.g. polyethylene of polyvinylidene fluoride) sleeve 10 and a corrugated sheath 9, each corrugation extending from one end of the sheath to the other, the sheath 9 being compressed on to the cable junction when the latter is shrunk (Fig. 2, not shown).  A mastic or hot-melt adhesive sealant 12 may be provided inside the ends of the sleeve 10 to form a waterproof and gasproof joint, and rings of solder 11 may be provided to solder the ends of the sheath 9 to the metal sheath 4 of the cables. The corrugations of the sheath 9 may be parallel to or at an angle to the axis, or may be zig-zag or curved, or the sheath may comprise both longitudinal and transverse corrugations. A second shrinkable sleeve 8 may be disposed inside the sheath 9, as shown. The sheath 9 may be made of copper or any other soft metal having a high electrical and thermal conductivity, e.g. aluminium, gold, tin, silver or platinum, metal foil being particularly suitable.
Patent GB-1457169-A (GB)
Title: Method for fabricating semiconductor devices using composite mask and ion implantation
IPC: H01L29/73
Filed: 1974-10-01
Abstract: 1457169 Semiconductor devices SIGNETICS CORP 1 Oct 1974 [26 Oct 1973] 42610/74 Heading H1K A semiconductor device is fabricated from a semiconductor body 11 with a planar surface 19 by forming a masking layer 21 on the surface 19, forming openings 22-24 simultaneously in the masking layer 21, and selectively doping areas exposed through the openings 22-24 in a predetermined sequence while covering the other exposed areas with photoresist or metal 26, the doping being by ion implantation followed by diffusion. The device shown yields a bipolar transistor with an isolation region. The semiconductor may be silicon, the masking layer 21 silicon dioxide and the device may have aluminium contacts. The dopants are arsenic and boron.
Patent GB-1121098-A (GB)
Title: A vibrating string for measurement purposes
IPC: G01H13/00
Filed: 1965-10-07
Abstract: 1,121,098. Vibrating string measuring instruments. WIRTH, GALLO & CO. Oct. 7, 1965 [Nov. 27, 1964], No. 42614/65. Heading G1N. In a vibrating string measuring instrument, to suppress parasitic vibrations it is arranged that the resonant frequency of vibration in a desired transverse plane should differ by a wide margin from the resonant frequencies of other possible vibrations when the string tension has a given value or is within a given measuring range. Parasitic vibrations result from deviations from circularity of the string cross-section, clamping means &c. The invention relates to a stiff string, that is one in which the resonant frequency of the desired vibration at zero tension is at least 1% of that under maximum tension. The stiffness depends on the configuration of the string crosssection, or more precisely on the radii of gyration of its cross-section. For a completely circular cross-section the ellipse of gyration would be a circle. If for example the string cross-section is rectangular the radii of gyration are unequal and the string stiffness across the breadth exceeds that across its width. The frequency of vibration in planes containing these two different axes will be different irrespective of the tension. According to the invention it is arranged that when the string is set into transverse vibration, the ratio of the two axes of the mean ellipse of gyration of the string cross-section, is suitably chosen so that the two resonant frequencies of like mode which develop in the planes of the axes differ by more than one or the other of their respective resonance band widths though remaining between the resonant frequencies of neighbouring modes. To provide the desired frequency spacing it is arranged that the string has a uniform cross-section along its length of a configuration as shown in Figs. 4a, 4b, 5, 6 or 7, which permit correct orientation of the string with reference to the plane of excitation, the string being excited by electrical means, along its x axis. Alternatively the string may have non- uniform cross-section, Figs.8 to 14 (not shown). The permissable limit of the intentional difference between the radii of gyration of non-circular sections may be calculated or determined by experiment.