baber/WOPTO huggingface dataset:
Patent GB-1480092-A (GB)
Title: Diagnostic agent
IPC: A61K35/30
Filed: 1974-08-14
Abstract: 1480092 Diagnostic agent for coagulation factors WARNER-LAMBERT CO 14 Aug 1974 35755/74 Heading G1B A lyophilized diagnostic reagent comprises a blood platelet substitute containing cephalin having platelet factor-like activity (defined) combined with 0À05-1À0 wt per cent, based on the composition, of non-porous fumed silica of 20-60 mÁ particle size and 50 m<SP>2</SP>/g surface area. The silica preferably has <3 silcenol groups/100Š<SP>2</SP> surface area. The reagent may also contain calcium free acacia, tragacanth, guargum, dextran or sucrose. Prior to lyophilization the composition may contain 0À5-3À0 wt per cent suspending agent and have a pH of about 7À35. The blood platelet substitute may be a mammalian brain extract.
Patent GB-742233-A (GB)
Title: Process of bleaching oils and fats and method of preparing a liquid bleaching agent
IPC: C11B3/08
Filed: 1953-12-24
Abstract: A bleaching agent for oils and fats comprises a highly viscous solution of a neutral alkali metal pyrophosphate in hydrogen peroxide in the ratio of 1 mol of the alkali metal pyrophosphate to more than 3 and up to 7 mols of hydrogen peroxide.  The pyrophosphate may be anhydrous, and the hydrogen peroxide may be the commercial product, such as a 35 per cent by weight aqueous solution, or more highly concentrated.  The solution is preferably dehydrated, e.g. in a vertical tube evaporator, preferably in vacuo.  Specification 577,879 is referred to.
Patent GB-447508-A (GB)
Title: Improvements relating to endless conveyors, particularly escalators
IPC: B66B29/00
Filed: 1934-12-14
Abstract: 447,508. Endless chain conveyers. BENNIE LIFTS, Ltd., STROBEL, R., and BENNIE, J., 28, Medway Street, Westminster. Dec. 14, 1934, No. 35937. [Class 78 (i)] Means for stopping an endlesschain conveyer, such as an escalator, should the chain break or stretch unduly, comprises a displaceable control member in combination with mechanism which is driven jointly by both runs of the chain to exert opposite and normally balanced forces on said member to maintain it in an inoperative position. As shown, the mechanism comprises sprockets 1, 1a gearing with the rims of the conveyer chain and having fixed thereto sprockets 4, 4a connected by a chain 5 which is deflected by rollers 7, 7a on the control member 6. When abnormal stretching or breakage of the conveyer chain takes place, the drive of the chain 5 is taken over by one of the sprockets 4, 4a, and the chain 5 tends to straighten in one run so as to displace the control member 6 and raise a pin 8a to open a switch 8.
Patent GB-834124-A (GB)
Title: Improvements in or relating to arrangements for mounting screens such as vehicle sunshades
IPC: B60J3/02
Filed: 1956-11-26
Abstract: 834,124. Sun vizors for vehicles. REGIE NATIONALE DES USINES RENAULT. Nov. 26, 1956 [Nov. 25, 1955], No. 36105/56. Class 103(2) [Also in Group XXV] In an arrangement mounting a screen on a support pin, the screen i.e. a vehicle sun vizor 1 contains a bore 2 having a flared mouth 5 and a groove 6 containing a spring rod 7, the arrangement being such that the rod 7 bears against the groove at 8 and against the pin 3 at 9 to hold the vizor, made of synthetic resin material, in any desired position, the spring being located in groove 6 by a tail 10 engaging a hole 11 in the vizor 1.
Patent GB-1201419-A (GB)
Title: Oven control apparatus
IPC: H01H89/04
Filed: 1968-07-29
Abstract: 1,201,419. Thermal switches. RANCO Inc. 29 July, 1968 [27 July, 1967], No. 36183/68. Heading H1N. [Also in Division H2] In a thermostatic control switch for a cooking stove in which the temperature responsive element 90 controls two sets of contacts, respectively in the circuits for the "broil" and "bake" elements, the temperature adjusting spindle 101 mounted on a cover-plate 103 adjustably positions the temperature responsive element 90 and also rotates a cam 117 which engages a lever 112 at "broil" settings to hold open a futher switch in the "bake" element circuit whereby further temperature settings control only the "broil "elements. The temperature responsive capsule 90 is mounted on the end of pin 95 rotatable on the end of the threaded adjusting spindle 101. The assembly is yieldingly held against a ball 105 of an initial setting screw 106 by means of coil spring 107. The capsule normally controls two pairs of contact sets 26, 45, Figs. 2, 3, in the circuits of the "broil" and "bake" element 16, 17 and interconnected by a pin 55 having lost-motion whereby the "broil" circuit contacts 45 open first on initial heating of the oven. Cam plate 117 keyed to the spindle 101 is mounted under the cover-plate 103 and engages projection 123 of lever 112 yieldingly urged axially of the spindle 101 by a leaf spring 120 and pivots pivoting on projections 116. The lever 112 engages a pin 83 operating to control a pair of leaf contact sets 56, 71, Fig. 2, in the circuits of the "broil" and "bake" elements 16, 17. With the control spindle turned to the "broil" position a spring loaded latch plate 115 engages and holds the lever 112 against a step 135 whereby the contact set 56 is held open and the "bake" element 17 remains disconnected. The spindle 101 may then be turned back to a lower temperature setting at which the "broil" element 16 only is controlled by the thermally responsive element 90. The cam 117, Fig. 9C, has projecting finger 140 which operates to release the latch plate 115 when the spindle is returned to the "off" position. In the "off" position the lever 112 is further moved to fully depress the pin 83 and disconnect both the "broil" and "bake" elements 16, 17 at the contact sets 56, 71. In a modification the lever 112 is not latched but is held by the cam 117 throughout the range of broil settings to disconnect the "bake" element 17.
Patent GB-177266-A (GB)
Title: Improvements in and applicable to circular braiding machines
IPC: D04C3/00
Filed: 1920-12-24
Abstract: 177,266. Allen, A. J, Watts, J., and Woodward, C. R. Dec. 24, 1920. Braiding-machines.-The bobbins A, B are arranged in two tiers, the lower bobbins A being mounted on a rotary plate E while the upper bobbins B are supported in radial slots H formed partly in a rotary plate D and partly in an outer rotary ring C, and are normally held in mid position by springs I. The threads from the bobbins A lead up through guides A' mounted on arms F secured to a ring G which moves with the plate E. The guides A' carry lenticular cams a while the bobbins B carry similar cams b, b<1> arranged alternately. The machine is driven by means of a grooved pulley K keyed to a sleeve L surrounding a fixed tubular support M. The pulley K carries a ring N connected by bolts 0 to the ring C while the plate D is keyed to the sleeve L. The plate E is rotated by means of epicyclic gearing R, Q, S, T at a higher rate than the sleeve L. The cams a of the guides A<1> overtake and impinge on the cams b, b' and cause the bobbins B carrying the cams b to be deflected outwardly while the bobbins carrying cams b<1> are deflected inwardly. The invention is applicable to machines in which only one tier of bobbins rotate. According to the Provisional Specification one series of bobbins is fixed to or propelled by a number of radial arms and the in-and-out movement is obtained by cams carried by the radial arms or by levers actuated by the series of bobbins or by a combination of cams and levers.
Patent GB-799759-A (GB)
Title: Improvements in or relating to the control mechanism of straight-bar knitting machines
IPC: D04B11/00
Filed: 1955-12-19
Abstract: 799,759. Knitting-machines. MONK (SUTTON-IN-ASHFIELD), Ltd., S. A., and MONK, S. A. Jan. 30, 1957 [Dec. 19,1955], No. 36268/55. Drawings to Specification. Class 74 (2). The main pattern chain or drum of a straight bar machine is racked step-by-step by pawl and ratchet mechanism the operation of which is controlled by any one of a plurality of auxiliary chains. A follower is associated with the linkage controlling the pawl and ratchet mechanism and is manually displaceable to bear on any one of the chains to be operated by studs thereon.
Patent GB-760135-A (GB)
Title: Improvements relating to purifiers for flour mill stocks
Inventor: LOCKWOOD JOSEPH FLAWITH
IPC: B02B1/02
Filed: 1953-12-31
Abstract: 760,135. Sifting-apparatus. SIMON, Ltd., H. Dec. 7, 1954 [Dec. 31. 1953], No. 36319/53. Class 117 In a purifier for flour mill stocks, of the type wherein an upward air current assists the purification of stock fed to the ends of oscillating sieves, a series of transverse channels of narrow cross-section are spaced along and just above the sieve covers, each channel being closed at the top and at one end, the bottom being open to the sieve cover and the other end being open for communication with an exhausting duct for drawing air upwards through the sieve cover. In a duplex purifier, Fig. 1, a pair of oscillating sieves, fed at one end, have their transverse channels b communicating with a common central exhausting duct f for removal of the lighter separated particles. The channels have a longtitudinal section as shown in Fig. 2, wherein a denotes the sieve covers, and the channels communicate with duct f through openings adjustable by slides g. The channels comprise side walls extending upwards to a transparent top c for the apparatus. and arc fitted with diamondshaped elements h having varying gaps j, for effecting a uniform air flow across the width of the sieve. In a modification the separation of the lower part of the channel side walls progressively decreases towards the central duct for the same purpose.
Patent GB-933212-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: C30B15/00
Filed: 1959-10-27
Abstract: 933,212. Semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. Oct. 27, 1959 [Aug. 17, 1959], No. 36426/59. Addition to 933,211. Class 37. In a semi-conductor device, especially for thermo-electric applications, the semi-conductor has low thermal conductivity and consists of a solid solution of an A<SP>IV</SP>B<SP>VI</SP> compound and an A<SP>I</SP>B<SP>V</SP>C<SP>VI</SP> 2  compound, i.e. of the type A<SP>I</SP>x/2 B<SP>IV</SP> (1-x)  C<SP>V</SP> x/2  D<SP>VI</SP>, wherein the individual components may be partially replaced by components of the same group, i.e. in the most general case, a solid solution having the formula with O # y, z, t, u # 1, and O < x < 1. Suitable solid solutions are Ag x/2 Sn (1-x)  Sb x/2 Te,   wherein the elements Sn and/or Sb may be replaced by Pb and Bi respectively, and in the general case the solution may contain the elements Au, Ag, Sn, Pb, Bi, Sb, Te and Se. The elements Cu, Si, Ge, P, As, S are also mentioned as being suitable for use in such solutions. The solution may be prepared by the two-temperature process described in Specifications 781,727 and 786,818, or by the methods mentioned in Specification 933,211, and PN junctions may be formed by alloying or diffusion or by doping with the aid of small deviations from stoichiometry. The solid solutions may be used with those described in the parent Specification to form a thermoelectric combination.
Patent GB-819301-A (GB)
Title: Improvements relating to hydraulic pit props and the like
Inventor: FRYE COLIN MICHAEL
IPC: E21D15/44
Filed: 1954-12-16
Abstract: 819,301. Hydraulic pit-props. DOWTY MINING EQUIPMENT Ltd. Dec. 15, 1955 [Dec. 16, 1954; Sept. 6, 1955], Nos. 36499/54 and 25549/55. Class 20(2) [Also in Group XXIX] A mechanism for operating a pressure release valve in a hydraulic pit prop or the like comprises a boss 11, Figs. 1 and 2, welded on the side of the prop 10 and a manually operable transmission mechanism comprising a lever 37, a double-armed lever 21, 22, a spindle 14 eccentrically located within the boss 11, a cam 17 on the spindle 14 and a plunger 30 which moves inside a valve housing 26 to actuate the valve (not shown). The lever or handle, Fig. 4, is connected by a bolt 36 to the two lever arms 21, 22 which are cranked at 35, 34 respectively to embrace the boss 11. The arm 21 is welded at 23, Fig. 2, to the spindle 14 and the arm 22 is fixed to the spindle 14 by a nut 25. On either side of the cam 17 within the bore of the boss 11 are two dirt-excluding discs 15, 16. The plunger 30 has an end part 33 which extends through an opening 31 in the boss 11 and is provided with a sealing ring 32. Outward movement of the handle 37 e.g. by a cable attached thereto, causes depression of the plunger 30 through the above described transmision and operates the release valve. As the prop falls and is retrieved the boss 11 protects the mechanism therein from dirt and damage. In a modification, Fig. 3, wherein the release valve is located within the prop 10 but away from the boss 11 the cam 17 is replaced by a lever 38 which extends into the prop and is connected to a push rod 39 which operates the valve. Each of the discs 16, 15 has a sealing ring 41, 42 respectively and layers of sealing material 43, 44 are located between the discs 16, 15 and the lever 38. Specification 753,532 [Group XXIX] is referred to.
Patent GB-368342-A (GB)
Title: An improved tool for use in preparing pipe ends for jointing
IPC: B21D39/08
Filed: 1930-12-04
Abstract: 368,342. Flanging tubes. CROXFORD, G., 25, Shannon Street, Wellington, New Zealand. Dec. 4, 1930, No. 36536. Convention date, Dec. 19, 1929. [Class 83 (iv).] A device for forming a flange on a tube by expanding same from the inside comprises a mandrel E provided at the end with a crossbar F or hand-wheel and bored to receive a screw plunger N formed with a conical end N<1> to actuate a taper block K carrying a pin M projecting through a hole J. The screw plunger N is fitted with a cross-pin o coacting with a screw cap P and with the end of the mandrel to limit the lateral movement of pin M. A rotatable sleeve G gripped by pipe tongs through the wall of the tube aids in the rotation of the mandrel. The Specification as open to inspection under Sect. 91 (3) (a) states that balls R, Fig. 6 (Cancelled), may be provided in place of the pin M; this subject-matter does not appear in the Specification as accepted.
Patent GB-1151995-A (GB)
Title: Drum Brakes
Inventor: SPENCER ALAN FREDERICK
IPC: F16D69/00
Filed: 1966-08-17
Abstract: 1,151,995. Brake shoes. FORD MOTOR CO. Ltd. 17 Aug., 1966, No. 36735/66. Heading F2E. In a drum brake shoe, the lining riveted thereto is laminated from an outer layer of friction material 17 adapted to engage the brake drum and an inner layer of an asbestos based material 18. The depth of the rivet heads 16 is approximately the same as the thickness of the inner layer 18.
Patent GB-1392603-A (GB)
Title: Containers
IPC: B65D39/08
Filed: 1971-08-05
Abstract: 1392603 Containers having liners DRUMS Ltd 4 Aug 1972 [5 Aug 1971] 36764/71 Heading B8D A container has an upstanding rim 6 defining an aperture through which the self supporting neck 1 of a plastics liner projects. A rubber gasket 5 is disposed between the neck and the rim. A further gasket 4 is compressed between a recess 7 in the container and a recess 9 in the liner. The neck 1 has a flange 8 of greater diameter than the aperture.
Patent GB-988950-A (GB)
Title: Carbamyl thiophosphate compounds
IPC: A01N57/12
Filed: 1961-10-13
Abstract: The invention comprises compounds of formula <FORM:0988950/C2/1> where R1 is C1-4 alkyl, R2 is C1-4 alkyl or C1-4 chloroalkyl and X and Y are each oxygen or sulphur, at least one being sulphur.  They are prepared by reacting appropriate alkyl or chloroalkyl N-2 haloethylcarbamates with sodium O,O-dialkylphosphoro(di)thioates. Ethyl N - 2 - chloroethylcarbamate and 2-chloroethyl N - 2 - bromoethylcarbamate are prepared by reacting aminoethanol with ethyl chloroformate and 2-chloroethyl chloroformate respectively and replacing the hydroxy group with chlorine, using thionyl chloride, and bromine, using phosphorus tribromide, respectively.ALSO:Organophosphorus compounds of formula <FORM:0988950/A5-A6/1> where R1 is C1-4 alkyl, R2 is C1-4 alkyl or C1-4 chloroalkyl and X and Y are each oxygen or sulphur, at least one being sulphur are used as insecticides.  Aqueous solutions and emulsions are described.
Patent GB-1386247-A (GB)
Title: Device for delivering particulate material
IPC: B24C5/02
Filed: 1971-08-05
Abstract: 1386247 Emptying hoppers pneumatically CRF VERTUE 3 Aug 1972 [5 Aug 1971] 36945/71 Heading B8A [Also in Division F1] Powder maintained in a fluidized state in the lower portion 209 of a container 20 by compressed air introduced below a porous membrane 217, is withdrawn therefrom by air actuated ejector devices 204 (see Division F1) through which the material is drawn by induced vacuum. As shown in Fig. 5, the ejector devices 204 are resiliently mounted on a rubber sheet 221 on the lower portion 209 and vibrated by a vibrator 225.
Patent GB-338745-A (GB)
Title: Improvements in the treatment of cellulosic materials to render them more reactive towards esterification
IPC: C08B1/02
Filed: 1929-12-03
Abstract: 338,745. British Celanese, Ltd. Dec. 11,1928, [Convention date]. Cellulose carboxylates, preparatory treatment of cellulose for making.-Cellulose material is treated prior to esterification first with nitric acid and then with an aliphatic and anhydride. The nitric acid is preferably used in small amounts and is diluted with a lower aliphatic acid such as acetic, propionic, or butyric acid. The time of the first pretreatment is preferably one hour at a temperature of about 50‹ C. The pretreatment with aliphatic anhydride, such as acetic anhydride, is preferably carried out at room temperature for one hour. It is effected in substantial absence of esterification catalysts other than any nitric acid remaining from the first step. The initial material may be cotton, cotton linters, reconstituted cellulose, or wood pulps. The material after the two pretreatments may be esterified at low temperature after the addition of a catalyst such as sulphuric acid or zinc chloride, and if desired a further quantity of acetic anhydride. The esters produced are clear and free from colour and are suitable for the manufacture of artificial silk, coating compositions, plastic compositions, photographic and other films, laminated or splinterless glass, and for making moulding powders containing the finely ground ester and a plasticiser. Specifications 263,938 and 319,691 are referred to.
Patent GB-621824-A (GB)
Title: Improvements relating to stowing in mining operations
IPC: E21F15/06
Filed: 1946-12-17
Abstract: 621,824. Pneumatic conveyers ; mechanical projectors. VOGEL, W. Dec. 17, 1946, No. 37119. [Class 78 (i)] In an apparatus for use in mining operations an endless belt for accelerating the stowing material to the high speed necessary to give close packing delivers the material into the mouth of a pipe, which mouth has an annular jet for supplying air under pressure into the pipe, so maintaining pneumatically the speed of the stowing material. Material is delivered by a conveyer 4 and guide 5 to a belt 1 which is driven at high speed around rollers 2 and a pair of spaced discs 3, which engage the edges of the belt only. Between said discs is positioned a roller 9 connected by a belt 8 to a roller 10 at the mouth 6 of the delivery pipe 7 where the material is thrown into said pipe from the conveyer, said belt 8 serving to direct, into the mouth 6 a stream of air produced by the belt 1. To maintain the velocity of the material during its passage through the tube 7 low pressure air from a blower (not shown) is fed into an annular air jet chamber 11 and discharged down the tube 7 The apparatus is angularly adjustable about a horizontal axis, so that the direction of the stream of material may be controlled. In a modification (not shown) two endless belts running at different speeds are arranged in series so that the material is mechanically accelerated in two steps prior to its entry into the pipe 7.
Patent GB-861521-A (GB)
Title: Novel thioxanthene derivatives and salts thereof and a process for the manufacture ofsame
IPC: C07D337/12
Filed: 1957-06-12
Abstract: The invention comprises 9-substituted thioxanthenol-(9)s in which the 9-substituent is a dialkylaminoalkyl group in which each of the alkyl groups of the dialkylamino moiety contain up to 4 carbon atoms and may be joined directly or through an oxygen, sulphur or nitrogen atom to form with the nitrogen atom of the amino group a 5- or 6-membered ring and in which the remaining alkyl group contains from 3 to 7 carbon atoms, and the corresponding compounds containing in one or more of positions 1 to 8 one or more alkyl or alkoxy groups or halogen atoms; and acid-addition salts thereof; and the preparation thereof by condensing the appropriate thioxanthone with an organo metallic derivative of the appropriate tertiary-amino-alkyl group and hydrolysing the metal containing condensation product so obtained. Organo-metallic compounds referred to are those of magnesium, lithium and zinc, and the use of Grignard reagents is preferred. The hydrolysis may be effected with aqueous ammonium chloride. Examples describe the preparation of 9-(gamma-dimethylamino-propyl)-thioxanthenol-(9) and the p corresponding 2-, 3- and 4-chloro-, 2-bromo-, 2-fluoro-, 2-methyl-, 1-, 2-, 3- and 4-methoxy-, 1-chloro-4-methoxy-1 - methyl - 4 - methoxy -, 1 - methyl - 4-chloro -, 1 - chloro - 4 - methyl -, 2 - chloro - 7-methoxy -, and 2:7 - dibromo - compounds.  The preparation of the d-tartrate of 2-chloro-9-(gamma - dimethylamino - propyl) - thioxanthenol-(9) is also described.  Thioxanthone and substituted thioxanthone starting materials are prepared by condensation of thiosalicylic acid or substituted thiosalicylic acids with benzene or appropriately substituted benzenes; or by condensation of diazo-anthranilic acid or appropriately substituted diazoanthranilic acids with thiophenol or appropriately substituted thiophenols and subsequent cyclization.  The preparation of 2-chlorothioxanthone via 41-chloro-2-carboxy-diphenyl sulphide and the corresponding 3- and 4-chloro, 2-bromo and 2-fluoro compounds by a similar method; of 4-methoxy-thioxanthone via 6-methoxy - 21 - carboxy - diphenyl sulphide and the corresponding acid chloride; of 3-methoxy-thioxanthone via 5 - methoxy - 2 - carboxy - diphenyl sulphide and the corresponding acid chloride and of 1-methoxy-thioxanthone by a similar method; of 2 - chloro - 7 - methoxythioxanthone via 4- methoxy - 41 - chloro - 21-carboxy-diphenyl sulphide and the corresponding acid chloride; and of 2:7-dibromo-thioxanthone by bromination of thioxanthone is described.  Specification 829,763 also is referred to.
Patent GB-799658-A (GB)
Title: Improvements in rotary compressors, pumps and the like
IPC: F04C29/00
Filed: 1957-12-02
Abstract: 799,658. Rotary compressors or pumps. NICHOLS, T. W. Jan. 2, 1958 [Dec. 2, 1957], No. 37443/57. Addition to 791,780. Class 110 (2). In the compressor or pump described in the parent Specification oil under pressure is supplied to end spaces 16 by way of ducts 14, 19, 20 and passes through a clearance 15, at each end of the rotor 4, to rotor end grooves 5, for sealing, cooling and lubricating purposes. The hard metal plate 6 may be drilled with holes for spraying oil into the working chamber and a joint 8 may be positioned as shown. The oil passes from each space 16, through a bearing 17, into spaces 15, 18 to each groove 5. A port 21, Fig. 3 (not shown), may be provided in each joint 8.