baber/WOPTO huggingface dataset:
Patent GB-1497778-A (GB)
Title: Reflector lamp
IPC: F21S2/00
Filed: 1976-10-08
Abstract: 1497778 Lamps PHILIPS ELECTRONIC & ASSOCIATES INDUSTRIES Ltd 8 Oct 1976 [13 Oct 1975] 41944/76 Heading F4R [Also in Divisions G2 and H1] An electric reflector lamp, preferably of the sealed-beam type, comprises an elliptic light and heat reflector 4, a hyperbolic light-transmitting heat reflector 2 and a light source 6, preferably an incandescent filament, the reflectors having a common focus situated within the source 6 and having the same focal distance 2c, the elliptic reflector having an eccentricity c/a e  within the range 0À5-0À99, and the reflectors satisfying the relationship in which a h  is half the transverse axis of the hyperbola, a e  is half the major axis of the ellipse, and f has a value which falls between the limits 0À84 and 1À14 when c/a e =0À5 and falls between closer limits which approach the value 1À00 as c/a e  increases, so that f is between 0À998 and 1À002 when c/a e =0À99. The hyperbolic reflector comprises a transparent glass support covered with a light-transmitting heat reflecting filter consisting of an infra-red filter of tin-doped indium oxide, as described in Specification 1,427,449, and an interference filter having alternate layers of a substance having a low refractive index, e.g. Na 3 AlF 6 , MgF 2 , SiO 2 , and a substance having a high refractive index, e.g. ZnSe, ZnS, TiO 2 . The high refractive index is preferably at least 1À5 times larger than the low refractive index. The layers of the interference filter are preferably of such thickness that the maximum reflection occurs in the waveband 0À7-1À2 Ám, but the filter may consist of two stacks of layers one of which reflects in the waveband 0À7-0À9 Ám and the other in the waveband 0À9-1À3 Ám. The elliptic reflector may be made of metal or of glass coated with a reflective metal layer, and may have a protective layer of silicon oxide.
Patent GB-1321443-A (GB)
Title: Antiskid method and device
IPC: B60T8/50
Filed: 1970-09-02
Abstract: 1321443 Antiskid braking systems WESTINGHOUSE BREMSEN-UND APPARATEBAU GmbH 2 Sept 1970 [3 Sept 1969] 42006/70 Heading F2F In a vehicle antiskid braking system a variable, such as wheel deceleration, indicating a skidding threshold is measured by a detector 2 and upon attainment of a predetermined critical value braking pressure is lowered and then after a predetermined lapse of time raised, the brake pressure rise being slowed down in dependence on the brake pressure effective upon attainment of the critical value so that the slowing down is more pronounced at lower effective brake pressures than at higher effective brake pressures. The detector 2, when the skidding threshold is reached, closes a circuit 3 to energize a solenoid valve 4 controlling the supply of compressed air from a reservoir 18 to the control chamber 24 of a multiway valve 1 having working chambers 6, 7, 8, 9 and a control slide 10 of which control faces together with faces of the casing form a brake pressure control throttle 12, 14 and a counter-pressure control throttle 13, 15. A device 26 for actuating the throttles comprises a housing 27 attached to housing 5 of valve 1 and includes an actuating piston 28 and a correcting piston 34 connected to a pin 37 which determines the limit of movement of the control slide 10. When the brakes are applied piston 34 is acted upon by a pressure equal to the effective brake pressure and the pin 37 is thus advanced in dependence on the effective brake pressure prevailing when the detector 2 responds and the pin assumes a more advanced position with low effective pressures than with high effective pressures.
Patent GB-1005016-A (GB)
Title: Machine for automatically cutting strips of adjustable length from a sheet or roll
IPC: B26D9/00
Filed: 1962-11-07
Abstract: 1,005,016. Cutting webs. ANSTALT BREVETEX. Nov. 7, 1962 [May 4, 1962], No. 42042/62. Heading B4B. A machine for automatically cutting strips of adjustable length and width from a sheet which may be drawn from a roll comprises a pair of reciprocating guillotine blades 1, 2, Fig. 1, having their cutting-edges oppositely disposed and arranged obliquely with respect to the plane of the sheet to be cut, a device to correctly position the sheet at the start of cutting operations and operable in synchronism with the cutting stroke of the blades, pairs of vertically adjustable feed rollers 32, 32<SP>1</SP>, 33, 33<SP>1</SP> and 34, 34<SP>1</SP>, Fig. 1, adjustable longitudinally-slitting discs 38, 39, adjustable scoring- means 37, an intermittent feedmeans to stop the sheet before cutting takes place including brakes for the rollers 321, 341, and means to render the slitting-discs operative or inoperative. In operation, entrance of the sheet 71, Fig. 4, to the machine is impeded by a stop 70 until it is released by the action of a cam 76, driven by the main shaft 11, a cooperating follower 79 and a system of levers 72 ... 75. The stop is held engaged by operation of a pedal 77 acting through a flexible cable 78 until the moment when the projection 76<SP>1</SP> strikes the follower. When the stop is released, the sheet is fed by the rollers into the machine and is scored by the wheel 37, and may be longitudinally slit by the cutters 38, 39 carried by the rollers 36, 36<SP>1</SP>. The blades 1, 2 are respectively driven by shafts actuated by connecting rods having eccentrics driven by the main shaft 11 and a first motor 12. At one end of the shaft 11 is secured a disc 15, Fig. 6, bearing an adjustable eccentric pivot 19 co-operating via an elastic or resilient tearpreventing member 26 and a chain 17 with a ratchet. A second motor 50 drives the cutting- disc shafts 36, 361 via a belt and a pulley 49, Fig. 3, the intermittent feed being excluded by operation of a lever 40 actuating a pin 46 which is withdrawn from a hole 47 to release a cylinder 31 from a gear 80<SP>1</SP> mounted on the cutting roller 36<SP>1</SP>. Similar operation of a further pin 48 by reverse movement of the lever 40 will exclude continuous feed and include intermittent feed. The upper of each of the three pairs of driving rollers is adjustable upwards, to accommodate different thicknesses of sheet, by a handwheel 55, Fig. 1, operating, through a screw drive, the levers 56 ... 58 acting on slides 59 ... 61 for the upper rollers. The rollers are detachable by removing cams 52, Fig. 3, and pins from the roller support frame 54. To facilitate stopping the feed of sheet material at the correct cutting point the intermittent-feed device includes a pair of adjustable brakes controlled by a cam 62, Fig. 5 (not shown), fixed to the main shaft 11 and a co-operating follower which acts progressively on the shoes of the brakes to tighten these around pulleys which are co-axial with the feed rollers 32<SP>1</SP>, 34<SP>1</SP>.
Patent GB-1125239-A (GB)
Title: Hydroxyphenyl-1,3,5-triazines containing sulphonic acid groups, their preparation, and use
IPC: A61K8/49
Filed: 1966-09-21
Abstract: 1,125,239. Aryl-1,3,5-triazines. CIBA Ltd. 21 Sept., 1966 [24 Sept., 1965], No. 42202/66. Heading C2C. [Also in Divisions A5 and C3] Novel compounds of Formula I in which A 1  represents an alkylene group, M x  represents a hydrogen or ammonium ion or a cation of a metal of group 1A, 2A, 2B, 3B, 4B or of iron, cobalt, nickel, manganese, copper or chromium, n represents the valency of the cation and Z 1  and Z 2  each represent a benzene residue that may be substituted by halogen atoms, alkyl, alkoxy or hydroxy groups or at most one phenyl group or a side-chain of the same type as is attached to carbon atom 6 of Formula I are prepared by reacting the corresponding 2-Z 1  - 4 - Z 2  - 6 - (2<SP>1</SP>,4<SP>1</SP> - dihydroxyphenyl) - 1,3,5-triazine with an alkane-sultone In Formula I, A 1  is preferably a lower alkylene group of 3 or 4 carbon atoms, M x  is preferably hydrogen, ammonium, sodium, potassium, calcium, barium, zinc, lead, nickel, copper, cadmium, cobalt, manganese, or chromium ion, and Z 1  and Z 2  are preferably substituted in one or two positions on each benzene residue by hydrogen atoms, alkyl or alkoxy groups of 1 to 4 carbon atoms, or by chlorine atoms. The sultone, preferably 1,3-propane-sultone or 1,4- butane-sultone, is added in 1 or 2 molar proportions per mole of hydroxyphenyl triazine compound, preferably in the presence of an organic solvent which is chemically inert and will dissolve the sultone, and in the presence of a base, e.g. an alkali metal hydroxide or carbonate, at temperatures between 10 C. and the boiling point of the reaction mixture.
Patent GB-891033-A (GB)
Title: Improvements relating to compound cylinders
IPC: F17C1/04
Filed: 1958-12-31
Abstract: 891,033. Making compound cylinders; jointing. MASCHINENFABRIK BURCKHARDT A.G. Dec. 31, 1958 [Jan. 9, 1958], No. 42225/58. Drawings to Specification. Classes 83 (2) and 83 (4). A hollow compound cylinder to be subjected to an internal pressure during service and constituted by two cylinders shrunk one over the other on a cylindrical surface is characterized in that the inner cylinder is made of a material having a higher modulus of elasticity than the outer cylinder with a view to increasing the resistance of the compound cylinder to repeated stresses. The outer cylinder is of aluminium or cast iron and may be lined with a cylinder of rhodium, tungsten, beryllium or iridium. Alternatively, the outer cylinder comprises two cylinders of the same material shrunk one over the other. The inner cylinder is of steel.
Patent GB-1437028-A (GB)
Title: Electrical contact assembly
IPC: H01H1/42
Filed: 1973-09-10
Abstract: 1437028 Switch contacts BILL SWITCHGEAR Ltd 2 Sept 1974 [10 Sept 1973] 42478/73 Heading H1N [Also in Division H2] A contact assembly comprises at least one pair of contact fingers 1, 1, Fig. 2, extending through a conductor plate 2 for engagement with a contact (not shown) therebetween and biased by a spring 3 into pivoted engagement with opposite side edges of the aperture 5 in the plate 2, therebeing a restraining means 4 in the region of the spring 3 to hold the contact surfaces 6 in spaced relationship. More than one pair of fingers 1, 1 may be arranged in a common aperture 5 or in separate apertures.
Patent GB-922290-A (GB)
Title: Electrolytic cells for the production of aluminium
IPC: C25C3/08
Filed: 1961-11-28
Abstract: 922,290. Anode current-conducting frames and supporting jigs for aluminium reduction cells. ALUMINIUM-INDUSTRIE-A.G. Nov. 28, 1961 [Dec. 23, 1960], No. 42503/61. Class 41. A reduction cell for the electrolytic production of aluminium from a fused bath contained in a rectangular pot, has a horizontally mounted anode current-conducting frame and supporting jig from which carbon anodes are suspended in the melt by vertically movable current-conducting rods arranged in rows down the longitudinal axis of the cell. The anode rods in each row are clamped to a vertically movable horizontal contact bar parallel to and outside the conducting frame and suspended from an overhead jig arrangement. The jig or supporting framework is itself supported by the currentconducting frame. The contact bars are connected to the conducting frame by flexible conductors, and the motor 23 and the mechanisms for moving the girders 10 are electrically insulated from the fixed current conducting frame but no other parts are. The cell comprises a pot with carbon bottom and anode superstructure, shown in end elevation, and consisting of carbon anodes 2, and fixed current-conducting frame 6 comprising two beams 6 spanning the length of the pot and welded to the outer faces of the vertical supporting conductors 5 positioned at each end of the cell and mounted on pedestals 8. The busbars 4 connect the cathode base of one cell to the vertical anode conductors of the next cell. The anodes 2, arranged in pairs, are carried from anode rods 9 which are clamped to horizontal contact bars 7 of aluminium supported by girder section 10, which latter unit is supported at each end by a jack 21 moving through gearing 22 which is driven by motor 23 through cross-shafts 25. The jig or supporting framework comprises members 16, 18 and 19. The jacks 21 are operated to raise and lower the anode rods by vertical movement of contact bars 7. Flexible conductors 12 connect the anode current-carrying frame to the contact bars 7. The fixed current-conducting frame is preferably composed of an aluminium-iron alloy containing from 1.8-2.0% iron.
Patent GB-934666-A (GB)
Title: Removal of aldehydes from ethylene oxide
IPC: C07D301/32
Filed: 1961-11-28
Abstract: Aldehydes are removed from ethylene oxide by contacting liquid ethylene oxide at -10 DEG  to +10 DEG C. with up to 100% of stoichiometric requirements, in accordance with the equations below, of an alkali metal borohydride, neutralising with an acid and filtering.  Sodium or potassium borohydride may be used in aqueous alkaline solution or solution or dispersion in inert liquids, e.g. methanol, ethanol, propanol, butanol, ethylene or propylene glycol. The reactions are as follows.  <FORM:0934666/IV(a)/1> The acids used for neutralising are preferably organic and soluble in ethylene oxide, formic, acetic and propionic being exemplified.  The filtrate may be distilled.  Specification 891,823 is referred to.
Patent GB-1525273-A (GB)
Title: Recovery of gases in installations of furnaces for converting or refining metals
IPC: C21C5/40
Filed: 1975-10-17
Abstract: 1525273 Recovery of gases from metallurgical furnace SOC LAB 17 Oct 1975 [29 Oct 1974 29 Nov 1974 30 Jan 1975] 42607/75 Addition to 1403125 Headings F4B and F4J In a method for the treatment of gases from a metallurgical furnace similar to that described in parent Specification combustible gases are drawn off the furnace by a main blower 8 and are supplied to the combustion chamber 5 through the pipe 4. Air is supplied to the combustion chamber by the auxiliary blower 18 through the pipe 19. Burnt gases may leave the combustion chamber through a pipe 45 and pass to the flue 7. Combustible gases supplied to the combustion chamber at 4a are withdrawn from the installation in at least an incompletely burned state through a pipe 41 and may pass through a dust removing device 6a before passing along a pipe 42 to an appropriate utilization point.
Patent GB-1393928-A (GB)
Title: Piston and cylinder arrangements
IPC: F16J15/20
Filed: 1972-09-15
Abstract: 1393928 Piston rings; seals DEMAG AG 15 Sept 1972 [23 Sept 1971] 42849/72 Headings F2T and F2B A piston packing for a pump or motor comprises one or more rings 3 through which the working pressure in the cylinder is transmitted to a deformable ring 4 to cause expansion of an expansible ring 5 into sliding contact with the cylinder wall; alternatively the packing may be mounted on the cylinder. Both the rings 4 and 5 may be made of polyamide.
Patent GB-1371501-A (GB)
Title: Apparatus for use in attaching tags to articles using fasteners
IPC: G09F3/14
Filed: 1971-09-14
Abstract: 1371501 Inserting fasteners MONARCH MARKING SYSTEMS INC 14 Sept 1971 [30 Sept 1970 (2)] 42886/71 Heading D1G A device for use in attaching tags 23 to material 24 e.g. a garment comprises a needle 76 for penetrating the tag and material, a pivoted trigger 35 which when depressed causes anticlockwise movement of lever 36 about its pivot 32, and consequential movement towards the needle of slides 49 and 62, channel means for receiving a fastener assembly 22, a drive rod 55, for driving a fastener through a bore 78 at the rear end of the needle and through the tag and material, connected to the slide 49, and a ratchet mechanism operable by movement of the slide 62 to effect indexing of the assembly after a fastener has been driven to bring the next fastener into the driving position. The fastener assembly 22 comprises a connector bar 22' to which each of a plurality of fasteners 21 are connected by elements 28. Each fastener comprises a filament 27, a bar 25 extending transversely, and at one end, of the filament and an enlarged portion 26 at the other end of the filament. The needle 76 has an enlarged rear portion 80 (Fig. 9) which is received in a bore 99 in the body of the device. A rack 100 on the portion 80 engages with teeth on a pinion 101 when the needle is inserted into the bore and rotation of knob 108 secured to the pin from the limit position of Fig. 9 to that of Fig. 8 will move the needle into its fully inserted position. In the latter position projection 107' (Fig. 7) on the knob will be urged into recess 109 by bias of spring 106'. When removal of the needle is required pressure applied to shaft section 105 will move the pinion and knob against bias of spring 106' to release the projection from the recess, and the knob is then rotated to its Fig. 9 position. A slot 82 communicating with the bore permits passage of the filament of each fastener therealong during driving. A second slot 84 permits entry of part of the bar of each fastener into the bore 78. During driving the rear end of the portion 80 severs the fastener being driven from its connecting element 28. The ratchet mechanism comprises a ratchet wheel 70 integral with a fastener assembly feed wheel 73. During forward motion of the slide 62 the pawl 68 is moved forwardly by contact between the rear end of slot 67 and a projection 72 on the pawl. Movement of the wheels during this motion is prevented by spring member 93 (Fig. 3 not shown). During the -return motion of the slide the forward end of slot 67 will engage the projection 72 to move it and the wheels a distance equivalent to the spacing between two fasteners. Apart from springs 41, 106' and part 94 including spring member 93 and a spring member 71 biassing the pawl 68 towards the wheels, the needle 76 and the disc rod 55, the device is made of plastics material.
Patent GB-898794-A (GB)
Title: Conversion of chromomycin o and f into chromomycin a
IPC: C07H15/22
Filed: 1958-09-16
Abstract: Chromomycin mixtures rich in chromomycin A group antibiotics are produced by reducing at temperatures of 10 DEG C. to 40 DEG C. and at a pH of 3 to 7.5 chromomycin F and/or O groups (or mixtures containing chromomycin F and/or O groups) obtained by the cultivation of Streptomyces griseus ATCC 13273 in accordance with Specification 898,793.  Specified reducing agents are hydrogen sulphide, sulphites (including hydrosulphites and bisulphites) a metal (such as zinc or tin) plus an acid, e.g. formic acid, an activated metal such as activated aluminium and water, or hydrogen in the presence of a catalyst such as Raney-Ni, Pd-black and Pt-black.  Solvents are 1 to 4 C alcohols, fatty acids, esters, aliphatic ketones with up to 5 C atoms, or mixtures thereof.
Patent GB-1439333-A (GB)
Title: Electronic multi-register arrangements
IPC: G06F11/10
Filed: 1972-09-16
Abstract: 1439333 Checking register stacks PLESSEY CO Ltd 3 Sept 1973 [16 Sept 1972] 43036/72 Heading G4A A stack of registers R1-R8 is divided into sections S1-S6 (six in the embodiment shown), each section including a corresponding group of bits from each register (e.g. the fourth section has bits 13-16 for all the registers) and a separate addressing arrangement SC, and a parity bit section SP has a stage for each register R1-R8, each bit in a stage representing the parity of the bits in the corresponding position in all the sections of the associated register. The register sections may be separate integrated circuit blocks on a multi-layer printed circuit board, the address paths a-g being formed by printed circuit tracks emanating from a platedthrough hole Sp. The registers may form the capability registers of the system described in Specification 1,329,721, the arrangement enabling detection of data corruption caused by power or circuit failures or incorrect addressing.
Patent GB-1079144-A (GB)
Title: Improvements in buckles for safety belts for use in vehicles
IPC: A44B11/25
Filed: 1965-10-12
Abstract: 1,079,144. Buckles. INDUSTRIAL SAFETY SERVICES PROPRIETARY Ltd. Oct. 12, 1965 [Oct. 13, 1964], No. 43143/65. Heading E2A.  A safety belt buckle comprises two parts each connected to an end of the belt, one part consists of a base plate 5 with a lid 22 pivoting on a spindle 8 now rotatably mounted between side walls of the base plate and with three spaced projections which engage apertures in the second buckle part 9 insertable in the other part. A pair of dogs 14, 15 (not shown) rotatable on the spindle 8 are controlled by cams 23, 24 rotatable on the spindle and spring urged to contact the dogs and retain them in clamping position on the part 9. The buckle part 9 is released by pivoting the lid 22 so that an abutment 26 on the lid engages the cams 23 which engage the dogs and pivot them from clamping engagement with the part 9 which then can be raised from the projections and withdrawn from the first part of the buckle.
Patent GB-1218296-A (GB)
Title: A process and system for measuring radiation doses using an ionisation chamber
Inventor: DIEVAL MICHEL
IPC: G01T1/15
Filed: 1968-09-11
Abstract: 1,218,296. Measuring radiation dose. COMMISSARIAT A L'ENERGIE ATOMIQUE. Sept. 11, 1968 [Sept. 15, 1967], No.43219/68. Heading G1A. [Also in Division G4] Charge collected by an ionization chamber 1, 2 is integrated in a capacitor 5, and when the voltage across this capacitor reaches a pre-set valve, threshold circuit 7 supplies a pulse to counter 10 and causes a switching circuit 3 to reverse the polarity of the chamber 1, 2 or that the sign of the charge collected is reversed, the voltage across capacitor 5 then changing in the opposite direction until threshold circuit 7 is again switched and the cycle is repeated. A compensating capacitor 4 eliminates the effects of parasitic charges when switch-over occurs. Because capacitor 5 is not discharged after each charge increment has been accumulated, high speed, solid state switching is possible (detailed circuits are given) and dielectric hysteresis effects are avoided. The two threshold levels of circuit 7 also provide temperature compensation.
Patent GB-989929-A (GB)
Title: Improvements in or relating to poultry feeding devices
IPC: A01K39/012
Filed: 1963-11-04
Abstract: 989,929. Poultry feeding devices. A. J. MCGUINNESS. Nov. 4, 1963 [Feb. 18, 1963], No. 43439/63. Heading A1M. A poultry feeding device comprises a mash container 1 adapted to be suspended in an upright position and a feeding tray 2 pivotally attached to the lowermost end of the container with clearance therefrom in such a way that poultry feeding from the tray causes pivotal movement of the tray with respect to the container to maintain the flow of feedstuff. The tray may be carried by a rod 3 passing diametically through the container or be pivotally trunnioned to the container. A pair of perches 5 are secured to the tray, the centre of which may be convexed inwardly toward the container.