baber/WOPTO huggingface dataset:
Patent GB-1399751-A (GB)
Title: Photobleachable dyes and photographic materials containing  them
IPC: G03G5/06
Filed: 1972-08-31
Abstract: 1399751 Photobleachable dye EASTMAN KODAK CO 31 Aug 1972 [31 Aug 1971 7 June 1972] 40346/72 Heading C4P [Also in Division G2] Photographic material comprises as photobleachable dye a compound of the formula wherein k and m are each 0 or 1, L is a methine or substituted methine group, R<SP>1</SP> is an alkyl, substituted alkyl, alkenyl, aryl or substituted aryl group, Z represents the atoms necessary to complete a mono or polycyclic heterocyclic nucleus which may be substituted, the heterocyclic ring containing the nitrogen atom shown being 5- or 6-membered, and Y represents the atoms necessary to complete a mono- or polycyclic aryl group which may be further substituted. The dye may be incorporated in photographic film base or coating material to produce merely a temporary image or as an antihalation or desensitizing dye. It may be incorporated in a silver halide emulsion layer or in a separate layer (e.g. below a heat-developable layer).
Patent GB-1501745-A (GB)
Title: Corrosion protection and corrosion protective composition
IPC: C09D5/08
Filed: 1975-10-03
Abstract: 1501745 Double phosphates of barium HOECHST AG 3 Oct 1975 [3 Oct 1974] 40664/75 Heading C1A [Also in Divisions C3 and C7] Phosphates BaZn 2 (PO 4 ) 2  and where M = Co or Mg and n = 0 to 0À8 are made by precipitation from an aqueous solution of the appropriate chlorides or nitrates by addition of H 3 PO 4  and subsequent neutralization, e.g. with an alkali solution, to pH 5À8-6À0. Ba-Zn phosphate may be prepared at room temperature, and the others at 90 C. Phosphates wherein M=Mg and n=0À1, 0À2, 0À4 and 0À8 are claimed per se. The compounds, optionally with a polymeric binder, H 3 PO 4  and/or pigment, are applied to Fe or steel as anti-corrosion coatings (see Division C7).
Patent GB-967451-A (GB)
Title: Improvements in or relating to masted lift trucks
IPC: B66F9/16
Filed: 1959-12-01
Abstract: 967,451. Steering vehicles; road vehicle suspensions. G. S. JINKS, and D. M. JINKS. Dec. 1, 1960 [Dec. 1, 1959], No. 40787/59. Headings B7D and B7H. [Also in Division B8] In a fork lift truck in which the mast structure and control cabin 19 are movable laterally across the truck (see Division B8), the ground wheels 21 are steerable hydraulically in pairs under the control of hand levers 97, 98, Fig. 4. Bowden cables pass from lever 97 in the cabin along pivoted links 108, 109 within the truck frame and the sheaths 103, 104 are secured to a lever 115, pivoted at 116, and the cables 101, 102 are secured to a lever 117 pivoted at 118. The lever 117 is connected by links 120, 121 to a rotatable shaft 122 provided with an arm 123 which is connected by a link 124 to a steering arm 125 coupled to the steering arm 127. A double-acting hydraulic ram 128 is pivoted between the truck frame and steering arm 127 and is supplied with fluid through pipes 131, 132 under the action of a control valve 119. In operation, when the lever 97 is moved to turn the related wheels, the reaction resisting turning movement acting on lever 117 sets up a force on the Bowden cable sheaths causing the lever 115 to operate control valve 119 and energize ram 128 to effect the steering movement until the forces on levers 117, 115 are again in equilibrium. The other pair of wheels is controlled similarly by hand lever 98. At each end of the truck, axle bars 75 for the wheels 21 are pivoted between plates 73 and are connected by links 83 and arms 81, which are pivoted between the plates 73, to a crosshead 86 on an hydraulic ram 89, 90 for effecting raising and lowering of the truck with respect to the ground. The plates 73 at each end of the truck are secured to a tube 72 rotatably mounted in a bearing sleeve 71 on the truck frame. The wheels 21 at each side of the truck are interconnected by bell-crank levers 93, each having one arm connected to brackets 92 on the plates 73, the other arms being connected by a link extending longitudinally of the truck.
Patent GB-1333961-A (GB)
Title: Fuel feed devices for internal combustion engines
IPC: F02M51/02
Filed: 1971-09-02
Abstract: 1333961 I.C. engine fuel supply systems SOC INDUSTRIELLE DE BREVETS ET D'ETUDES 2 Sept 1971 [15 Sept 1970] 41038/71 Addition to 1207228 Heading F1B The invention of the parent Specification is modified by the provision of a regulator 54 which varies the pressure of fuel delivered by the pump 50 to the electromagnetic injector 16, 17 in response to the suction in the intake conduit 1 between the throttle valves 2, 3 and the temperature of the fuel and intake air. A diaphragm 57, subject through a passage 56 to the suction between the valves 2, 3, acts to close a relief valve 55 against the pump delivery pressure and a bi-metallic strip 83 responsive to regulator temperature also acts on the valve. For an average position of the valve 55 the strip 83 provides no force for an average temperature or temperature range and provides a force tending to open or close the valve when the temperature is above or below the average value or range.
Patent GB-1055204-A (GB)
Title: Apparatus for forwarding filamentary material
Inventor: BARLOW GEORGE EDWARD
IPC: D04H3/03
Filed: 1964-10-08
Abstract: Apparatus for forwarding filamentary material or fibres, e.g for deposition from "free flight" on a stationary or moving surface to form a batt, or in the production of tows during continuous spinning or from wound packages, comprises two rotatable discs mounted on mutually-inclined axes and arranged to contact each other over a peripheral marginal portion of a face of each disc to form a nip, means to drive at least one of the discs and guide-means to direct the material into the nip.  The discs may be of flexible material which is electrically conductive to disperse static, or they may be of insulating material coated with conductive material.  The face of at least one disc may be provided with a grooved track for the material.
Patent GB-927759-A (GB)
Title: A road vehicle door hingeable about a horizontal axis
Inventor: JONES DAVID BRYNMOR
IPC: E05F1/12
Filed: 1960-03-08
Abstract: 927,759. Hinges. VAUXHALL MOTORS Ltd. March 7, 1961 [March 8, 1960], No. 41297/62. Divided out of 927,758. Drawings to Specification. Class 65 (2). [Also in Group XXXII] The subject-matter of this Specification is all disclosed in the Specification 927,758, but the claims differ.
Patent GB-1511038-A (GB)
Title: Separation of acids and esters from the waste salt solution of cyclohexanone manufacture
IPC: C07C69/02
Filed: 1975-10-09
Abstract: 1511038 Separation of acids and esters J K BRUNNER 9 Oct 1975 [10 Oct 1974] 41528/75 Heading C2C The invention comprises a process for producing an ester of a monocarboxylic or dicarboxylic acid, or a dicarboxylic acid, from a waste salt solution of cyclohexanone manufacture which comprises acidifying the waste salt solution with sulphuric acid to produce an aqueous phase and an organic phase; distilling off water and a proportion of the lower boiling monocarboxylic acids from the resulting organic phase at a temperature up to 120 C.; cooling the residue of the said distillation to a temperature from + 5C to -10 C.; separating crystals of solid dicarboxylic acid precipitated in the cooling; and fractionating at below 120 C., or esterifying and distilling, the liquid remaining after removal of the crystals, to separate the more volatile components from both the hydroxyacids and the dicarboxylic acids.
Patent GB-1070487-A (GB)
Title: Under-carriage with wheels in tandem
IPC: B64C25/34
Filed: 1965-09-30
Abstract: 1,070,487. Retractable undercarriages. RECHERCHES ETUDES PRODUCTION R.E.P. Sept. 30, 1965 [Oct. 2, 1964], No. 41582/65. Heading B7G. An aircraft undercarriage has two sideways retracting wheels in tandem, each braced in the down portion by a folding strut, and the two struts are connected together at their joints 16, 17 by a link 22. In the undercarriage described the two wheels are mounted on arms (4, 5, Fig. 1, not shown), connected to a common horizontal shock-absorber 1, on the body of which the arms are pivotally mounted (at 2, 3) and which is itself pivotally mounted by lugs 8, 9 on the aircraft. The struts 14, 18 and 15, 19 arranged to lie between the arms (4, 5) when retracted (Figs. 4 and 5, not shown). The undercarriage is retracted by a single jack 23 acting on one of the struts, and an overcentre spring (26, Figs. 2 and 4, not shown), biases the undercarriage to its extreme up and down positions.
Patent GB-992589-A (GB)
Title: Improvements in or relating to fluid-actuated devices
IPC: H01H37/36
Filed: 1961-11-22
Abstract: 992, 589. Temperature-responsive actuating- elements. BUSCH-JAEGER DURENER METALLWERKE A.G. Nov. 22, 1961 [Nov. 25, 1960], No. 41799/61. Heading G1D. A temperature-responsive fluid communicates through tube 2c with the inside of a flexible sealing cylinder having a larger diameter portion 3a within a larger diameter portion 1a of a pressure cylinder and a smaller diameter portion 3b<SP>1</SP> entering a smaller diameter portion 1b of the pressure cylinder to abut a spring pressed piston 7, the arrangement being such that on initial expansion of the fluid e.g. from 0-80‹C. the portion 3a expands to fill portion 1a and there is very little movement of the piston 7, whilst over the operating range of temperature e.g. 80-100‹C.the portion 3b<SP>1</SP> expands within portion 1b and actuates the piston 7. The portion 3b<SP>1</SP> may be thickened and occupy the full inside diameter of portion 1b, Fig. 1, (not shown), be surrounded by a metal sheath 4, as shown or a spring, Fig. 3, (not shown). In a modification, Fig. 4 (not shown), the portion 1a is curved outwardly.
Patent GB-958588-A (GB)
Title: Improvements in or relating to colour television receivers
Inventor: BIGGS ALBERT JESSE
IPC: H04N5/58
Filed: 1960-12-08
Abstract: 958,588. Television. GENERAL ELECTRIC CO. Ltd. Sept. 29, 1961 [Dec. 8, 1960], No. 42298/60. Heading H4F. The chromaticity and/ or luminance of the picture reproduced by a colour picture tube 11 are/is automatically controlled by the chromaticity of the ambient light falling on the tube screen. In the embodiment shown, which is concerned with controlling chromaticity, the photo-transistors 42, 43 made responsive by means of filters to red and blue light respectively and mounted adjacent the screen of tube 11 so as to respond to ambient light falling thereon but not to light produced by the screen, operate to energize a relay coil 29 when the ratio of red to blue light exceeds a predetermined value set by resistors 51, 53, such energization resulting in the closing of the relay contacts 28, 38 which short-circuit a portion of resistors in the bias supply circuits of the screen and control grids of the blue gun 14. The circuit is initially adjusted such that a colorimetrically correct picture is produced when daylight falls on the screen and the change in the blue-gun bias produced by a decrease in the proportion of blue light in the ambient light (e.g. by a change from daylight to that of a tungsten filament lamp) results in a decrease in the blue content of the reproduced picture which is thus slightly tinted yellow. This is stated to compensate for the change in the subjective impression received by a viewer. The hue of the tinting may be made other than yellow by controlling the bias of other tube guns and the purity and/or luminance may be varied instead of, or in addition to, the hue. The invention is described in connection with a transmission system utilizing the British equivalent of the N.T.S.C. system.
Patent GB-939679-A (GB)
Title: Improvements in or relating to electrolytic erosion processes
IPC: H02M7/162
Filed: 1960-12-08
Abstract: 939,679. Electrolytic machining. AGIE A.G. FUR INDUSTRIELLE ELEKTRONIK. Dec. 8, 1960 [Dec. 9, 1959], No. 42335/60. Clas 41. [Also in Group XXXV] In electrolytic machining, single phase A.C. is rectified and the unsmoothed rectified output is fed to the gap across the electrode and workpiece, thus providing a pulsating D.C. of which the voltage intermittently approaches zero. The circuit preferably includes means to extinguish arcing and sparking. The output of a single phase transformer is taken to a two-way bridge rectifier circuit 2, 3, 4, 5, and the pulsating D.C. is supplied from points 6, 7 to the electrode E and workpiece W. Rectifiers 4, 5 are of thyratron type and firing time is controlled so that pulses fed to the gap are subject to a time-lag, by the network tapped resistance 9<SP>7</SP>, condenser 10 operating as an integrator unit. The ignition of the controlled rectifiers is operated by a double-base transistor 15 of bi-stable characteristic, the adjustable resistor 22 connected to emitter 15a, forming an impulse generator. After supplying the controlled impulse to the rectifiers and discharging condenser 23, this is re-charged via resistor 22, and emitter voltage rises whereas the path between base electrodes 27, 28 becomes conductive. Two rectifiers 16, 17 supply the impulse generator, the connecting points being led to the ignition circuit 20 via a resistor 18. A Zener diode 19 limits the potential rise in this circuit e.g. if A.C. voltage in the transformer secondary rises to 100 V., the Zener diode 19 limits it to about 20 V. If an arc or spark occurs the voltage on condenser 10 drops, the negative potential of voltage source 12 is reduced, and the emitter line of the NPN transistor becomes non conductive, the charging condenser 23 is bridged, and the ignition impulse is delayed.
Patent GB-1026019-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L29/00
Filed: 1964-10-19
Abstract: 1,026,019. Transistors. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 19, 1964 [Nov. 8, 1963], No. 42536/64. Heading H1K. The effective collector-base junction is restricted to an area 12 by the interpolation of a layer 11 of intrinsic-conductivity material.
Patent GB-1156130-A (GB)
Title: Improvements in or relating to 1,2-Methylene-B-Norsteroids
Filed: 1967-09-19
Abstract: 1,156,130. B-Nor-steroids. SMITH KLINE & FRENCH LABORATORIES. 19 Sept., 1967 [21 Sept., 1966], No. 42706/67. Headings C2C and C2U. Novel compounds of formula or C(H)(α- or #-CH 3 ) and R<SP>1</SP> is hydrogen, methyl, or ethyl, and the 17-esters thereof, are prepared by adding a 1,2-methylene group (e.g. with dimethyl sulphoxonium methylide) across the 1,2-double bond of the corresponding B-nor-1,4-androstadien-3-one, which in turn is obtained by chemical or microbiological dehydrogenation of the corresponding B-norandrost-4-en-3-one, e.g. using Septomyxa affinis. The 17-esters of the invention are obtainable from the 17-ols by conventional acylation. 6,6 - Ethylene - 17# - hydroxy - 17α - methyl- # - nor - androst - 4 - en - 3 - one is prepared by the sequence: 17α - methylandrost - 5 - ene- 3#,17# - diol-#its 3,17-diacetate-#3#,17#- diacetoxy - 17α - methyl - 5,6 - seco - androstan- 5 - on - 6 - al-#the corresponding 6 - oic acid-#3#,17# - diacetoxy - 17α methyl - 5#- hydroxy - # - nor - androstan - 6 - carboxylic acid 5,6 - lactone-#6# - hydroxymethyl - 17α- methyl - B - nor - androstane, - 3#,5#,17# - trial -#5#,17# - dihydroxy - 6# - hydroxymethyl- 17α - methyl - B - nor - androstan - 3 - one-# 6 - methylene - 17# - hydroxy - 17α - methyl - B- nor - androst - 4 - en - 3 - one-#desired compound. The corresponding 17α-ethyl compound is prepared analogously. 6,6 - Ethylene - 17# - hydroxy - B - nor - androst - 4 - en - 3 - one is prepared by the sequence: 3# - acetoxy - 5# - hydroxy - 17 - oxo- B - nor - androstan - 6 - carboxylic acid 5,6- lactone-#6# - hydroxymethyl - B - nor - androstane - 3#,5#,17# - triol-#6# - hydroxymethyl- 5# - hydroxy B - nor - androstane - 3,17 - dione -#6 - methylene - B - nor - androst - 4 - ene- 3,17 - dione-#6,6 - ethylene - B - nor - androst- 4 - ene - 3,17 - dione-#6,6 - ethylene - B - norandrost - 4 - ene - 3#,17# - diol-#required compound. 17# - Hydroxy - 6,17α - dimethyl B - norandrost - 4 - en - 3 - one and 17# - hydroxy- 17α - ethyl - 6 - methyl - B - nor - androst - 4 - en- 3-one are prepared by hydrogenation of the corresponding 6-methylene compounds. Pharmaceutical compositions suitable for oral or topical administration in the treatment of conditions caused by hyperandrogenicity, such as acne and hirsutism, comprise a compound of Formula (I) or 17-ester thereof and a pharmaceutical carrier, and may be in the form of a sesame oil suspension for oral use or a cream for topical use.
Patent GB-428594-A (GB)
Abstract: 428,594. Ticket-holders. MARTIN, A. H., 7, Bachelors Lane, Dee Banks, Chester, and BRECKNELL, WILLIS, & CO.-, Ltd., 59, Victoria Street, Bristol. Nov. 30, 1934, No. 34463. [Class 106 (iii)] A conductor's ticket - holder for holding bunches of differently denominated tickets comprises an open-fronted panel 1 of cast aluminium recessed and flanged as shown and provided with deep lugs 5 extending between adjacent bunches of tickets so as to protect the top corners of the tickets. Spring clips 7 are provided for the tickets.
Patent GB-1152498-A (GB)
Title: Improvements in and relating to Electro-Magnets
Inventor: WEINZIERL HELMUT
IPC: F16K31/06
Filed: 1966-09-26
Abstract: 1,152,498. Valves. H. WEINZIERL, and E. PUTSCHKY. 26 Sept., 1966 [27 Sept., 1965], No. 42884/66. Heading F2V. [Also in Division H1] In an electromagnet actuating an hydraulic control valve the armature space, which communicates with the hudraulic medium, is formed by a pole plug 21 (Fig. 2), an intermediate ring 20 of non-magnetic material, e.g. copper, and a guide tube 22 of magnetic material, which is in direct contact with the end wall 3 of the magnetic casing, the three parts being held together with the aid of a member 26 attached to one end of the casing. In the Fig. 2 arrangement the casing consists of a section of square tube and member 26 is attached by hollow rivets extending the length of the casing which is filled with cast resin. The assembly is attached to the valve casing by screws extending through the hollow rivets, thus relieving them of the hydraulic pressure load. The guide tube is sealed by a movable plug 25 located by the plate 26 and which enables the valve to be operated mechanically in an emergency. Pressure equalization is effected by a slot cut in the armature, and sealing rings 23 are provided between the abutting faces of the parts forming the armature space. In an alternative embodiment (Fig. 1, not shown) in which the guide tube has an integral closed end, a pressure tube is disposed between the coil bobbin and the armature space forming members. The pole plug and guide tube, which in this case directly contact the intermediate ring, are each provided with a peripheral groove containing a sealing ring.
Patent GB-1479084-A (GB)
Title: Process for the production of o-diphenols by the oxidation of monophenols
IPC: C12P7/22
Filed: 1975-10-20
Abstract: 1479084 Production of o-diphenols AGENCY OF INDSTRUIAL SCIENCE & TECHNOLOGY 20 Oct 1975 [21 Oct 1974 (2) 11 Dec 1974] 42963/75 Heading C2C The invention relates to a process for the production of o-diphenols which comprises oxidizing an aqueous solution of a monophenol unsubstituted in at least one of its ortho positions with molecular oxygen in the presence of phenolase and thereafter subjecting the resulting reaction liquid to reduction under acidic conditions with a lower valent oxide of a transition metal (by this term is meant an oxide of a transition metal for which two or more oxides can be formed, in which the degree of oxidation is lower than the degree of oxidation of the other oxides formed by the transition metal), or a metal greater in ionizing tendency than hydrogen. The phenolase is preferably tyrosinase. As a variant of the above process a reducing substance (which may be other than those described above) may be co-existent with phenolase in the oxidizing reaction system.
Patent GB-1253506-A (GB)
Title: Improved building board
Inventor: RELPH WILLIAM KEITH LINFORD
IPC: E04C2/24
Filed: 1970-09-08
Abstract: 1,253,506. Laminated board. PLASCHEM Ltd. 8 Sept., 1970, No. 43018/70. Addition to 1,181,895. Heading B5N. A board comprises a base of rigid expanded plastics material having on one or both faces a facing laminate of paper/water-impervious plastics sheet material/paper board. Specified water-impervious plastics materials are polypropylene, polystyrene and polyethylene, and specified expanded plastics materials are polyvinyl chloride, polystyrene, polyethylene, phenol formaldehyde resin, urea-formaldehyde resin, isocyanurate foam and polyurethane foam.
Patent GB-1528984-A (GB)
Title: Alternating current transformers
IPC: H01F38/20
Filed: 1975-10-21
Abstract: 1528984 Measuring current GENERAL ELECTRIC CO 21 Oct 1975 [6 Nov 1974] 43128/75 Heading G1U A variable gain current transducer includes means for sensing current flowing in a line, a feedback amplifier whose feedback factor is controlled by a first current source, the amplifier output being multiplied by a factor controlled by a second current source, to provide the transducer output, wherein at least one of the current source outputs is variable. A shunt resistor 13 carries line current I, in a polyphase supply power measurement system Fig. 3 (not shown). This supplies an input voltage V in  to the operational amplifier 19 whose power supply is derived 41, 43 from the power line, preferably by the potential transformer (12, Fig. 3). The amplifier output feeds a coil 21 in a Hall-effect device 23 multiplier where an output VH is produced proportional to the product of the amplifier output and a current I 1 . The voltage VH provides negative feedback to the amplifier 19. A second Hall-effect device 33 positioned adjacent the first 23, preferably by being formed on the same integrated circuit chip, receives a second current I 2  and provides the output V op  representing the current I. The overall gain may be controlled by either I 1  or I 2 , and by making this a function of I, the gain may be reduced at high current levels. In this case, in the power measurement, a reciprocal adjustment must be made to retain linearity.
Patent GB-1267858-A (GB)
Title: Holographic process
Inventor: NASSENSTEIN HEINRICH
IPC: G03H1/04
Filed: 1969-08-29
Abstract: 1,267,858. Holography. AGFA GEVAERT A.G. Aug.29, 1969 [Sept.19, 1968], No. 43142/69. Heading G2J. A hologram is produced by exposing a lightsensitive layer 3 to a coherent object beam 1 and a coherent reference beam 2 through an optically denser medium 6, whereby the reference beam is totally reflected at the layer 3 and produces an inhomogenous surface wave in layer 3 with which the object beam interferes to produce the hologram. The layer 3 which may be silver halide emulsion, is optically contacted with medium 6 through a liquid layer 5. Preferably layer 3 is on a support 4, e.g. glass, of higher refractive index. The object beam can be incident on either side of the recording interface.