baber/WOPTO huggingface dataset:
Patent GB-1440566-A (GB)
Title: Bogie trucks for rail vehicles
IPC: B61F5/52
Filed: 1972-10-04
Abstract: 1440566 Railway vehicle undercarriages GLOUCESTER RAILWAY CARRIAGE & WAGON CO Ltd 3 Oct 1973 [4 Oct 1972] 45653/72 Heading B7L A bogie comprises side frames 1 having front and rear abutments thereon, a transverse member 4 extending between the side frames 1 and having front and rear abutments at each end portion thereof arranged in respective opposed relation to the front and rear abutments on the side frames 1 so that each two opposed abutments co-operate to form a spaced pair of abutments between which is disposed a block 6 of alternate laminations or rubber and steel plates, each block 6 being inclined downwardly from its abutment on the member 4 to its abutment on the side frame, wherein each side frame is formed wholly within that portion thereof forwardly of the front abutment and wholly in that portion thereof rearwardly of the rear abutment with a triangular opening 12 in register with brake applying means 9, 10. Each opening 12 has radiused corners and the side adjacent the block 6 is generally parallel to the steel plates.
Patent GB-1035559-A (GB)
Title: A driving system comprising an alternating current motor
Inventor: KRABBE ULRIK
IPC: H02P27/02
Filed: 1964-11-12
Abstract: 1,035,559. Automatic speed control. ALLMANNA SVENSKA ELEKTRISKA A.B. Nov. 12, 1964, No. 46091/64. Addition to 1,021,088. Heading G3R. [Also in Division H2] The rotor 2 of an A.C. motor is of squirrel cage construction, and stator 1 is wound as described in the parent Specification with a double star-connected winding having neutral points 19, 20. The stator winding is connected to the source 4 through controlled rectifiers 3, the points 19,20, being connected to neutral 17 through resistors 18. Direct braking-current is derived from transformer 13 through rectifiers 14. When a voltage derived from tachometer generator 5 is less than a reference voltage, comparator 7 actuates amplifier 8 whereby the conducting periods of rectifiers 3 are increased. Excessive speed causes amplifier 9 to render rectifiers 14 conductive so that the braking current supplied to the stator winding is increased. In other arrangements, the controlled rectifiers in the lines R, S, T, are shunted by reactor windings or diodes, the resistor 18 and the connection to the neutral 17 being omitted.
Patent GB-961765-A (GB)
Title: Improvements in steam-traps
IPC: G05D23/08
Filed: 1962-12-07
Abstract: 961,765. Steam traps. H. R. GERDTS, and W. F. GERDTS, [trading as GUSTAV F. GERDTS KOMM.-GES.]. Dec. 7, 1962 [Dec. 7, 1961], No. 46206/62. Heading F4U. In a steam trap in which a freely movable valve plate 6 divides a control chamber 4 into a pressure chamber 7 and an exit chamber 8, one face of the valve plate 6 co-operating with valve seatings 2a and 3a surrounding inlet and outlet ports 2 and 3 respectively, a temperature-responsive element acts to move the valve plate to the open position when the steam trap temperature falls below a predetermined value. As shown, Figs. 1 and 2, the temperatureresponsive element comprises a bi-metallic or spencer snap-acting disc 11 resting on a peripheral ledge 12 in the exit chamber 8, and prevented from. rotation by projections 13 which engage slots 14 in the disc. Cut-outs 11a allow the valve seat bosses 2a and 3a to project through the disc 11. When cold, the disc has a shape which holds the valve plate clear of the valve seats, Fig. 1 (broken lines), but when the temperature exceeds a certain value, e.g. the steam saturation temperature, the disc assumes a shape so that it lies wholly within the exit chamber, leaving the valve plate free to move in the normal manner. In a second embodiment, Fig. 4, a bi-metallic strip 15 is fastened to the centre of the valve plate upper face, and has legs 16 so that when cold, it holds the valve plate 6 clear of the valve seats as shown. In a further embodiment, a bi-metallic disc, fastened to the centre of the valve plate lower face, curves away therefrom when cold, but lies flush with the valve plate surface when hot, forming the sealing face of the valve plate. Other forms of temperature-responsive element may be used. Specification 845,201 is referred to.
Patent GB-1332719-A (GB)
Title: Damped valve train in an internal combustion engine
IPC: F01L1/16
Filed: 1971-10-05
Abstract: 1332719 I.C. engine valve gear FORD MOTOR CO Ltd 5 Oct 1971 [4 Dec 1970] 46224/71 Heading F1B To reduce the closing speed of a poppet valve 13 an hydraulic damper 32 opposes the valve spring 19. Oil supplied through a check valve 42 is forced through a passage 46 and/or between the piston 38 and the bore 36 when the rocker portion 48 engages the piston end 47. The damper piston (62) Fig.2 (not shown), may be mounted in a bore (61) in the cylinder head 11 to engage the end (59) of the rocker remote from the valve stem.
Patent GB-1441113-A (GB)
Title: Continuously operating machine for pressing ironing or producing patterns on sheet material
IPC: C14B1/44
Filed: 1973-10-05
Abstract: 1441113 Rolling machines for leather STROJOSVIT NARODNI PODNIK 5 Oct 1973 [3 Nov 1972] 46607/73 Heading C6C [Also in Divisions B6 and D1] A continuously operating machine for pressing, ironing, or producing patterns on sheet material, especially leather, comprises an endless conveyer band 29 arranged to convey the material between a driven heated cylinder 24 and driven pressing rollers 9, 10, the cylinder having an exchangeable jacket 44 and being rotatably mounted in end supports 17, 18 which are removably suspended from an upper frame 21 having one end connected to an adjacent end of a bottom frame 1 by a clamp or tie unit 27 and both pressing rollers are mounted in forked end-plates and have bearings which are suspended on bell-crank levers 11, 12, the latter having one of their ends pivotally mounted on a carrier 4 and their other ends connected to power units 15, 16 which are pivotally suspended from the end supports. Preferably the conveyer band passes around a tensioning roller 31 and a guide roller 34, hydraulic rams 32, 33 being provided for adjusting the position of the tensioning roller and one end of the guide roller being provided with a pivotal joint and its other end being connected to a double-acting hydraulic ram 35, control circuits for all the hydraulic rams being connected in parallel to a source of pressure fluid, and both chambers of the double-acting ram being supplied with pressure fluid through a distributer valve 36 controlled by an edge sensor 37. The exchangeable jacket of the cylinder may be connected to an inner drum by centering wedges 48 which engage in longitudinally extending grooves 49 formed on the interior surface of the jacket and in wedgeshaped grooves 50 formed on the outer surface of the drum 45.
Patent GB-1535208-A (GB)
Title: Process of producing calcium aluminate trisulphate hydrate and a dehydration product thereof
IPC: C01F7/767
Filed: 1975-11-14
Abstract: 1535208 Calcium aluminate trisulphate hydrate MATSUSHITA ELECTRIC WORKS Ltd 14 Nov 1975 [15 Nov 1974 18 Nov 1974 10 Dec 1974 29 April 1975] 47007/75 Heading C1A [Also in Division C4] 3CaOÀAl 2 O 3 À3CaSO 4 À31-32H 2 O is prepared by reacting a calcium sulphate component in the presence of water at less than 120 C. with a raw material selected from or (iv) a mixture of a CaO/Ca(OH) 2  component and an alumina component. The product may be dehydrated to produce a dehydrate with fewer molecules of water of crystallization. Shaped hardened products may be prepared from the product and setting of the hardened product may be influenced by the addition of reaction retarding agents or accelerating agents.
Patent GB-1381388-A (GB)
Title: Amino ethanols
IPC: C07C217/70
Filed: 1972-10-12
Abstract: 1381388 Amino-ethanol derivatives; iminohalides TANABE SEIYAKU CO Ltd 12 Oct 1972 [15 Oct 1971] 47033/72 Heading C2C Amino-ethanol derivatives of Formula (I) (in which ring A is phenyl which is optionally substituted with 1 to 3 substituents selected from alkoxy, hydroxy and hydroxymethyl, each of R<SP>1</SP> and R<SP>2</SP> is H or alkyl and R<SP>3</SP> is alkyl, aralkyl, aryl or hydroxymethyl) are prepared by (A) reacting a benzoyl halide of Formula (II) (in which ring A<SP>1</SP> is phenyl which is optionally substituted with 1 to 3 substituents selected from alkoxy, alkanoyloxy and alkanoyloxymethyl and X is halogen) with an isocyano compound of Formula (III) i (in which R<SP>3</SP> is alkyl, aralkyl, aryl or alkoxycarbonyl) to produce a novel imino halide of Formula (IV) and (B)-(a) subjecting compound (IV) to reduction with diborane, lithium aluminium hydride or an alkali metal borohydride, or (b) hydrolysing compound (IV) with a dilute acid to produce a compound of Formula (V) and subjecting compound (V) to reduction with diborane, lithium aluminium hydride or an alkali metal borohydride, or (c) hydrolysing compound (IV) with a dilute acid, subjecting the resultant product (V) to catalytic hydrogenation to produce a compound of Formula (VI) and subjecting compound (VI) to reduction with diborane, lithium aluminium hydride or an alkali metal borohydride.
Patent GB-1475756-A (GB)
Title: Photographic apparatus for locating a section of a film strip
IPC: G03B17/26
Filed: 1974-10-30
Abstract: 1475756 Film cassettes POLAROID CORP 30 Oct 1974 [15 Nov 1973] 47062/74 Heading B8M Photographic apparatus for use with a cassette 10 including a film 48 and having an opening for rendering the film accessible at a given portion of its path, comprises a housing for the cassette including a film platform 70 having a longitudinal channel 76 between raised members 77, 79, the channel 76 being formed, for at least part of its length, with a ramp 80 extending from the base of the channel to the member 77, whereby when the cassette is loaded into the housing with a movement such that the film at the above-mentioned given portion of its path moves transversly of the platform 70 and a marginal portion of the film is urged by the ramp 80 to move out of the channel and on to the member 77. A motion-picture camera 12, Fig. 1, has a cassette-receiving pocket 16 containing an aperture plate 22 in registration with a lens assembly 20. The film 48 is stored within a cassette 10 having, in an edge wall 36 thereof, an opening 38 permitting access of imagecarrying light rays for exposure of the film and egress of image-carrying light rays for image projection. Another opening (not shown) for projection purposes is provided in a side 240 of the cassette. The film 48 extends from a spool 44 to a spool 46 with its emulsion side directed towards a pressure plate 54 having film-margin support members 63, 64 and an aperture 68. The plate 54 is spring-urged towards the opening 38. The camera 12 includes a claw (not shown), for stepwise advance of the film 48, and a drive member 52 co-operable with the spool 46. The plate 22 includes the platform 70 and a cassette guide portion 71. The film margins are contacted by the members 77, 79 and are bracketed by lands 72, 74 which engage the members 63, 64 to provide gaps 81, Fig. 3. Convex film-guiding pads 84, 86 are positioned at edges of an aperture 82 to bow the film into a "curved focal plane". Guides 90, 92 fixed to the plate 22 co-operate with movable guides 94, 96 of the camera 12 to laterally position the strip 48 and the plate 54. To insert the cassette 10 in the camera 12, an edge wall 36 of the cassette is placed under a lip 24 and the cassette is rotated and slid forwards into the pocket 16, the ramp 80 camming the leading margin of the film 48 upwardly to a proper location on the member 77. Springs 106, Fig. 3, urge the cassette into engagement with a surface 100 on the platform 70.
Patent GB-1019916-A (GB)
Title: A process for improving processability of high molecular weight polypropylene
Inventor: KOBAYASAHI YUJI
IPC: C08F8/50
Filed: 1962-12-14
Abstract: The average molecular weight and the melt viscosity of crystalline polypropylene are reduced by heating at 210 DEG  to 350 DEG  C. in the presence of an organo-tin compound selected from (1) R2Sn(OOCR1)2, wherein R1 is alkyl or a phenolic group, <FORM:1019916/C3/1> (2) or [-Sn(R)2OOC.CH=CH.COO-]m, (3) R2Sn[OOC.CH=CH.COOR1]2, wherein R1 is alkyl or hydroxyalkyl, (4) R2Sn(OR1)2 or R1O[Sn(R)2O-]mR1, wherein R1 is alkyl or phenyl, <FORM:1019916/C3/2> (5) or R1O[-Sn(R)2O-]mOCR11, wherein R1 is alkyl, and R11 is alkyl, <FORM:1019916/C3/3> (6) or R1O[-Sn(R)2O-]mOC.CH=CH.COOR11, wherein R1 and R11 are alkyl, <FORM:1019916/C3/4> (7) wherein R is alkyl, hydroxyalkyl or -R11OR111, wherein R11 is alkylene and R111 is alkyl or hydroxyalkyl, (8) R2Sn=S or [-Sn(R)2S-]m, or (9) R2Sn[SR1]2, wherein R1 is alkyl; R in each of the above being alkyl, benzyl or phenyl and m being the degree of polymerization.  The products find application as film and fibre.
Patent GB-1075456-A (GB)
Title: New ª†-lactones and a process for their manufacture
IPC: C07D315/00
Filed: 1964-11-20
Abstract: The invention comprises compounds of the general formula <FORM:1075456/C2/1> in which A is hydroxyl and B is hydrogen or A and B together indicate a C-C-bond, R1 is hydrogen or an unsubstituted or substituted hydrocarbon residue, and R2, R3 and R4 either each represent an unsubstituted or substituted hydrocarbon residue or together are members of alicyclic ring systems and a process for the manufacture thereof wherein a carboxylic acid ester of a tertiary a -hydroxy ketone, whose acid component contains a -CH2 group in a -position relatively to the carboxyl group, is treated in an anhydrous dipolar aprotic solvent with strong proton acceptors.  As aprotic solvent dimethyl sulphoxide or dimethylformamide may be used and as proton acceptors metal hydrides, alkali metal amides and alkali metal alcoholates are used.
Patent GB-1218857-A (GB)
Title: Polymerisation of isoprene and catalyst therefor
IPC: C08F136/08
Filed: 1968-10-07
Abstract: 1,218,857. Isoprene polymerization. JAPAN SYNTHETIC RUBBER CO. Ltd. 7 Oct., 1968 [7 Oct., 1967], No. 47475/68. Heading C3P. A catalyst suitable for the preparation of polyisoprene, comprises the components: (A) a titanium tetrachloride or tetrabromide, (B) an organoaluminium compound of formula AlR 3 , wherein R, which may be the same or different, represents an alkyl, aryl or cycloalkyl group and (C) a phenol, substituted phenol, a hydroxy substituted diphÙnyl, a naphthol or a substituted naphthol. In preparing the catalyst component (A) is added to a mixture of components (B) and (C). In the examples, isoprene is polymerized in an inert organic solvent, under an inert atmosphere, using a catalyst comprising titanium tetrachloride, aluminium triethyl and one of the following:-phenol, o-, m- or p-cresol, p-tert.-butyl phenol, 4-hydroxydiphenyl, 3,4- dimethylphenol, 2,4-dimethylphenol, α-naphthol, #-naphthol or catechol. The product mixture is treated with methanol and a phenol to deactivate the catalyst and precipitate the polymer which has a high cis 1,4 content.
Patent GB-1141974-A (GB)
Title: Apparatus for effecting the avoidance of aircraft collisions
IPC: G01S13/933
Filed: 1967-10-20
Abstract: 1,141,974. Radio navigation. A. BOUDOURIS. 20 Oct., 1967 [27 Dec., 1966], No. 47775/67. Heading H4D. The Specification describes an aircraft anticollision system, comprising on each aircraft, a transmitter and an automatic radio direction finder receiver, the operating frequencies of the transmitter and receiver being equal and being controlled in dependence on the aircraft altitude as determined by sensing means. An aircraft will thus only be able to determine the direction of a signal from another aircraft if the two aircraft are at the same altitude and thus in danger of collision. The altitude sensing means comprises bellows AB which controls the spacing of transmitter frequency tuning capacitor C initially by movement of arm 14. Movement of the arm out of a neutral position closes the upper or lower contacts of switch 32, depending on its direction of movement. This in turn causes energization of motor 30 and the rotation of screw 20 via gear 24 and worm 26 in a direction such that the bellows, supported by the screw 20, is raised or lowered to bring the arm 14 back to its neutral position, the size of the bellows, the spacing of the capacitor plates and the transmitter frequency not being altered. Rotation of screw 20 also causes, via flexible cable 36, the adjustment of the receiving frequency of an automatic direction finder ADF. Cam and switch means 42, 40 causes alternate energization of the transmitter and receiver. Calibration of the altitude/frequency relationship is adjusted by screw 21.
Patent GB-1336986-A (GB)
Title: Thread engaging u-shaped nut
IPC: F16B37/02
Filed: 1972-10-18
Abstract: 1336986 Anchor nuts FORD MOTOR CO Ltd 18 Oct 1972 [1 Nov 1971] 47881/72 Heading F2H  A U-shaped sheet metal nut 11 to snap on to the edge of a support member 27 so that apertures 13, 16 in the two legs 12, 15 are aligned with an aperture 32 in the member 27 has thread-engaging prongs 14 extending out of the plane of one leg 12 about the aperture 13, and resilient tangs 17 projecting out of the plane of the other leg 15 about the aperture 16 such that a bolt 21 inserted through the apertures 16, 32, 13 into threaded engagement with the prongs 14 has some of the flats 22 of its head 19 engaged by edges 23 of the tangs 17 to prevent unscrewing rotation of the bolt. As shown, the tangs 17 are triangular, pressed out from the leg 15 and joined thereto by the edges 18. The bolt head   may be turned clockwise (Fig. 2), its corners momentarily depressing the tangs 17, but is prevented from being turned anticlockwise. In a modification (Figs. 4, 5, not shown) the tangs (24) are rectangular, being joined at one end (25) to the leg (15).
Patent GB-1338330-A (GB)
Title: Operating mechanism for a sliding roof of a motor vehicle
IPC: B60J7/057
Filed: 1972-10-18
Abstract: 1338330 Sliding roofs FORD MOTOR CO Ltd 18 Oct 1972 [24 Nov 1971] 47897/72 Heading B7B A sliding roof is actuated by a coiled cable 11 displaceable by a hand crank 6, such that when the cable is displaced in the forward direction when the roof is closed the rear edge of the roof is closed and when the cable is displaced in the rearward direction in closed position the roof is lowered and moved backwards. A base-plate 1 attached to a reinforcing frame surrounding the roof opening supports a housing 2 for a helical gear 4 rotatable by a foldable hand crank 6. The cable 11 is displaced in guide sleeves 9 and 10 by rotation of the crank to the left or right to close or open respectively the roof. A projecting pin 13 secured to the cable 11 is in position, Fig. 2, between stops 17, 18 provided on a lever 14 pivoted by a rivet 16. A locking lever 23, pivoted by a rivet 25, carries a pin 26 engaging an elongated hole 22 in the lever 14. If the roof is displaced in lowered position towards the rear, the lever 23 in the broken line position, Fig. 3, ensures that the stop 17 and lever 14 are moved to operating position by the pin 13 so that the cable 11 and roof can only move to the right. With the lever 23 in the full line position, the lever 14 is pivoted and pin 23 is moved into the path of pin 13, such that the cable and roof can only be moved towards the left. Thus, it is only possible to raise the rear edge of the roof.
Patent GB-1133312-A (GB)
Title: Nonwoven fibrous sheet
Inventor: BUNTING WILLIAM WALLAR
IPC: D04H1/4266
Filed: 1965-11-15
Abstract: 1,133,312. Fibrous fabrics. E.I. DU PONT DE NEMOURS & CO. 15 Nov., 1965, No. 48308/65. Addition to 1,063,252. Heading D1R. A process for producing a non-foraminous fibrous sheet material comprises subjecting a fibrous web on a support member to the action of a columnar stream of non-compressible fluid issuing from an orifice, said stream having a momentum-flux of at least 6 kg-m/sec<SP>2</SP>-cm<SP>2</SP> at the point of impingement on the web. The web and orifice preferably move relative to each other and the velocity of the stream at the orifice is preferably greater than 6000 cm/sec. The material so produced comprises a non-foraminous non- woven fibrous sheet characterised in that the fibres or filaments therein are so entangled with other fibres or filaments therein that (a) the impenetrability rating I is at least 0.5 and (b) the entanglement frequency f, is at least 26/in, both being measured when the web is in the bond free state. The fibrous sheet is further characterised in that the entanglement completeness C is at least 0.7 the 45/90/135 number is at least 10, and the structural measure of fibre entanglement S is at least 0.1. The weight of the sheet is preferably not more than 170 gm/m<SP>2</SP>. Various other characterisations are described. Each characterisation is defined in the body of the specification.
Patent GB-1027360-A (GB)
Title: Improvements in or relating to the production of polyalkylene terephthalates
IPC: C08G63/87
Filed: 1963-12-06
Abstract: Polyalkylene terephthalates are made by transesterifying a dialkyl terephthalate with an aliphatic glycol and polycondensing the product in the presence of a catalyst which is (1) a naphtholate formed from a naphthol (e.g. betanaphthol) or a hydroxydinaphthyl (e.g. 2,21-dihydroxydinaphthyl) and a Group II metal (e.g. Mg, Ca, Sr, Ba, Zn, Cd or Hg) or (2) a mixture of such a naphthol or hydroxydinaphthyl and a Group II metal salt (e.g. zinc acetate). The transesterification may also be effected in the presence of these catalysts.  In examples, dimethyl terephthalate was reacted with ethylene glycol.
Patent GB-1094510-A (GB)
Title: Soil cooling system
IPC: F28D15/00
Filed: 1965-11-15
Abstract: 1,094,510. 'Stabilising soil.' J. C. BALCH. Nov. 15, 1965, No. 48430/65. Heading E1F. [Also in Division F4] Heat abstracted from the soil 10 to maintain it in a frozen-state, is rejected to the surrounding air by the thermal circulation of liquid in a closed pressurised system. A single hollow casing 14a partially embedded in the soil is used, the liquid circulating from the lower part where it extracts heat from the soil up through passageways 58 provided in a plastics insert 46, to the upper part above ground to reject the head to the air. The cooled liquid then returns down inlet tube 16a flow being controlled by a ball valve 48 under the influence of thermally responsive bellows 52.
Patent GB-1525488-A (GB)
Title: Method and apparatus for spectrometric analysis of fine grained minerals and other substances using an electron bea
IPC: G01N23/225
Filed: 1975-11-25
Abstract: 1525488 Surface analysis by electron beam X- rays NIHON DENSHI KK and DIRECTOR GENERAL OF THE JAPANESE GOVERNMENT AGENCY OF INDUSTRY SCIENCE & TECHNOLOGY 25 Nov 1975 [29 Nov 1974] 48469/75 Heading H4F [Also in Division G1] Apparatus for analysing a specimen 3 comprises means for irradiating its surface with an electron beam 1, means for making the beam scan the surface two dimensionally, means for measuring the resulting characteristic X-rays, means 20 for calculating concentration ratios of the elements irradiated and generating an electrical signal therefor, and means for displaying this information two dimensionally in synchronism with the scanning means. Platform 4 is moved by pulse motors 5X, 5Y controlled by scanning signal generator 6. Alternatively beam 1 may be step-scanned by a deflection coil, X-rays 9 enter wavelength dispersive spectrometers 10, 11 and 12, of which the detected wavelengths are adjusted by goniometer controls 13, 14, 15. Calculator 19 memorizes signals of a standard specimen of known element concentrations and by comparison with the signals from counters 16, 17, 18 determines the element concentrations. Logic circuit 20 determines the atomic ratio, which is indicative of the compound present and transmits the appropriate character signal for apparatus 7 to type on chart paper 8. Computer 21 controls the spectrometers, the mapping starting points, the number of counting points and the time interval between them. In the embodiment of Fig. 4 (not shown) the spectrometers and counters are replaced by an energy dispersive X-ray spectrometer with a solid state detector, an amplifier and a multi-channel analyser.