baber/WOPTO huggingface dataset:
Patent GB-1286758-A (GB)
Title: Improvements in or relating to visors
Inventor: LUX MELVYN DAVID STUART
IPC: A42B3/22
Filed: 1970-07-03
Abstract: 1286758 Visors M D S LUX 7 May 1971 [3 July 1970] 32430/70 Heading A3V A visor comprises a flexible sheet 10 of transparent plastics material which has three slots 18, 19 and 20 cut therein adjacent one edge 11 in spaced relation and in each slot is adjustably located a press stud fastener 23 having a female portion for engaging with a complementary male stud fixed on a helmet so as to secure the visor to the helmet and each fastener 23 also having a male portion for engaging with a complementary female member on an eye-shield so as to secure the latter to the visor. In addition two press stud fasteners 28 are provided in adjustment slots 21 and 22 adjacent the side edges 12 and 13 of the visor which fasteners either may be single female members for engagement with male studs on the helmet or may also comprise male portions like the fasteners 23 for the attachment of accessories to the visors. The visor may alternatively be mounted on a brow bar which pivots relative to the helmet instead of being fixedly mounted on the helmet. A thickened bead portion 17 is provided to cover the arcuate edge 17 of the visor.
Patent GB-498221-A (GB)
Title: Improvements in hydraulic gear pumps, specially applicable for ram operated tipping vehicles
IPC: F04C2/18
Filed: 1937-11-25
Abstract: 498,221. Tipping vehicles. EDWARDS, M. Nov. 25, 1937, No. 32442. [Class 108 (i)] [Also in Group XXVI] A gear pump 2 supplies oil from a tank 20, through a pipe 24 and hollow pivots 35, to a cylinder 25. This causes a rod 36 to rotate an arm 38, and rollers 41 to slide in guides under the tipping body 42 of a vehicle. To lower the body, a pin 28 is forced downwards to open a valve 22, and allow the oil in the cylinder to flow back to the tank 20.
Patent GB-256846-A (GB)
Title: Improvements in means for preventing the theft or unauthorised use of motor vehiclesor cycles
IPC: B60R25/021
Filed: 1925-12-24
Abstract: 256,846. Bishop, R., and Dalrymple, J. Dec. 24, 1925. Portable locks. - A lock for the steering pillar 12 and shaft 11 of a notor vehicle comprises a rod 20 eccentrically mounted in a hollow pin 16 and carrying bolts 21 which are inserted in the space between the shaft and pillar when the rod is turned by the key in a. lock 19.
Patent GB-137288-A (GB)
Title: A new or improved method of converting metallic lead into its oxides
IPC: C01G21/02
Filed: 1919-12-29
Abstract: 137,288. Thibault, J. A. Dec. 30, 1918, [Convention date]. Lead monoxide; red lead. -Lead is oxidized by an oxidizing agent such as air or oxygen and water vapour in a closed vessel below the melting point of the lead or of any intermediate oxide. Lead in the form of lumps, powder, or granulated is placed in a rotary drum A heated by a chamber B. Air from a compressor C receives water from a vessel D and is heated in a coil E to vaporize the water, after which the mixture is passed into the drum A through its shaft F and finally escapes through a shaft G. A suitable pressure is maintained by manipulating a valve H on the outlet G. Any oxide carried over by the gas current is caught in a washer I. To make litharge, the temperature is kept below the melting-point of lead. To make red lead, litharge is first formed, and then the temperature is raised to about 425‹ C.
Patent GB-381002-A (GB)
Title: A device for collecting and dealing with particles suspended in liquids
IPC: B01L3/14
Filed: 1931-11-24
Abstract: 381,002. Centrifuge tubes. PICKER, R., 8, Kaas Ivor utca, Budapest. Nov. 24, 1931, No. 32606. Convention date, Nov. 24, 1930. [Class 23.] A centrifuge tube 18 for collecting the particles suspended in blood and other liquids, has a conical extension 19 with a cylindrical bottom part 20. A seating surface 21 in the form of a spherical zone is ground in the tube wall between the parts 19, 20 and on this surface is seated the accurately ground rim C of the ladle 11. The space 22 below the ladle is filled with water before centrifuging and the space above the ladle with the liquid to be treated. The tube is provided with projections 27 for convenience in handling.
Patent GB-486430-A (GB)
Title: Improvements in multi-wall bags of paper or other material and a method of constructing such bags
IPC: B65D30/18
Filed: 1936-11-28
Abstract: 486,430. Paper &c. bags. HOPPE, E. Nov. 28, 1936, Nos. 32614 and 32615. Convention dates, Nov. 28, 1935 and April 14, 1936. [Class 94 (ii)] A multi-wall paper &c. bag, which may be formed with a valve, has a corner construction consisting of independent corner flaps and side flaps, cut from plies 1, 2, 3, &c., so stepped and co-ordinated in relation to each other, that the steps of the various plies of the side flaps overlap and may be adhesively secured to at least the steps of the corresponding plies of the corner flaps. In Fig. 1, the side flaps are stepped longitudinally of the bag tube, and the corner flaps are stepped transversely of the bag, in the position shown. The righthand corner forms the valve. In an alternative construction, Fig. 2, where no valve is to be formed, the corner flaps and side flaps at the right-hand corner are stepped in the same sense as those at the left-hand corner. In a still further modification, Fig. 5, the side flaps are not stepped longitudinally of the bag but only transversely of the bag, as also are the corner flaps in the position shown. The right-hand corner forms the valve. Material may be cut away beyond the fold lines a-a at the left-hand corner, as shown. Alternatively, in this modification, the corner flaps and side flaps at the right-hand corner may be stepped in the same sense as those at the lefthand corner. The plies may be separated from lengths of continuous tubing, portions being cut from the ends thereof to produce the desired stepping.
Patent GB-324983-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone systems
IPC: H04Q3/00
Filed: 1928-11-08
Abstract: 324,983. Standard Telephones &. Cables, Ltd., and Wright, E. P. G. Nov. 8, 1928. Drawings to Specification. Automatic exchange systems. - In a system using single-motion switches associated with common control circuits, the feed-bridge is located in the penultimate switch. The digits for the final switch pass metallically thereto from the calling line via a bye-pass connecting the control circuits of the penultimate and final stages. The system described is the same as in Specification 324,982. Specification 317,521 also is referred to.
Patent GB-914948-A (GB)
Title: Improvements relating to printing machinery
IPC: B41F13/32
Filed: 1959-09-28
Abstract: 914,948. Printing-machines; inking apparatus. GIFFORD, G. W. Sept. 21, 1960 [Sept. 28, 1959], No. 32841/59. Class 100 (2). The inking and impression cylinders 10, 14 of a sheet-fed rotary letterpress printing- machine are mounted in predetermined fixed positions whilst the plate cylinder 12 is mounted at each end in a bracket 13 so that it may be swung bodily in an arc about the axis of the inking cylinder. Such adjustment is effected by a screw-and-nut 15 extending through a hole in a bar 16 fixed to the machine, the screw being connected to an arm 17 secured to a bar 18 fast with the brackets 13. In order to adjust the plate cylinder-through actuation of the screw- and nut 15-to accommodate between it and the impression cylinder any desired thickness of material to be printed, a gauge is provided comprising a member 19 connected to one of the brackets 13 and a member 20 fixed to the machine. Adjustment is made by moving the cylinders apart, placing the material between the gauge members and then closing them by moving the plate cylinder towards the impression cylinder. The plate cylinder 12 is also bodily movable out of engagement with the impression and inking cylinders should the sheet supply fail. Such an arrangement is effected by providing a switch in the form of spring fingers 21 which are normally lifted by the sheets but engage a plate 22, if the sheet supply fails, to energize a solenoid which causes movement of a rod 23 connected at one end to a plate 24. This plate receives a reduced end portion of the plate cylinder shaft which portion is eccentric to the shaft axis such that movement of the rod 23 rooks the plate 24 to move the cylinder.
Patent GB-814332-A (GB)
Title: Process for the production of thiol-phosphoric acid esters
IPC: C07F9/165
Filed: 1956-10-29
Abstract: O,O-dialkyl-S-alkyl (or substituted alkyl)-thiolphosphoric acid esters of the general formula <FORM:0814332/IV (b)/1> in which each R is alkyl and R1 is alkyl which may be substituted by an alkoxy, alkylmercapto, carbalkoxy, carboxylic acyl, aryl, nitroaryl, or halogen-substituted aryl radical are obtained by reacting in a substantially neutral aqueous medium an alkali metal (e.g. sodium or potassium) or ammonium salt of an O,O-dialkyl thiophosphoric acid with an organic halide of the general formula HalR1, in which Hal is a halogen atom and R1 is as defined above at a temperature of from about 20 DEG  C. to about 100 DEG  C.  Specified ester salts are O,O-dimethyl, -diethyl, -dipropyl, -di-isopropyl, -dibytyl, -diamyl and -dihexyl ester salts.  Mixed O,O-dialkyl ester salts may also be used.  Suitable organic halides are alkyl halides, e.g. chlorides, bromides or iodides, and methoxymethyl-, ethoxymethyl, methoxyethyl, ethoxyethyl, propoxyethyl, butoxyethyl, methylmercaptomethyl-, ethylmercaptomethyl, ethylmercaptoethyl, ethylmercaptoisopropyl, ethylmercaptobutyl-, benzyl-, phenylethyl-, p-chlorobenzyl-, p-chlorophenylethyl- and p-nitrobenzyl halides, haloacetic acid esters such as chloroacetic acid ethyl ester, halopropionic acid esters, haloacetoacetic acid esters, e.g. bromoacetoacetic acid ethyl ester, and haloketones such as methyl a -chloroethyl ketone. Examples are given for the production of:-  (1) (CH3O)2P(O)S.CH2CH2SC2H5; (2) (C2H5O)2P(O)S.CH2CH2SC2 H5; (3) (CH3O)2P(O)SCH2SC2H5; (4) (C2H5O)2P(O)SCH2SC2H5; (5) (CH3O)2P(O)SCH2C6H5; and (6) (C2H5O)2P(O)S.CH(COCH3)CH3.  In each case the product is obtained by reacting an aqueous solution of the ammonium salt of the corresponding O,O-dialkyl thiophosphoric acid with the corresponding organic chloride.  Other products which may be obtained similarly are compounds of the above general formula in which each R is methyl and R1 is p-chlorobenzyl-, 3,4 - dichlorobenzyl -, 2,4,5 - trichlorobenzyl, carbethoxymethyl and methyl respectively and compounds in which each R is ethyl and R1 is benzyl, 3,4-dichlorobenzyl, 2,4,5-trichlorobenzyl and the group CH3CH(COOC2H5)-respectively.  Reference has been directed by the Comptroller to Specifications 803,411 and 803,446.
Patent GB-779350-A (GB)
Title: Process for the production of aldehydes and ketones
IPC: C07C45/00
Filed: 1953-11-30
Abstract: Aliphatic aldehydes or ketones are obtained by the catalytic dehydrogenation at 300-600 DEG  C. of an aliphatic alcohol containing from three to ten carbon atoms in the molecule, in which the catalyst is contained in a tube, the internal surface of which is made of an iron alloy of a ferritic or austenitic structure containing less than 0.15 per cent by weight of carbon and more than 6 per cent of chromium. The alloy may also contain silicon, manganese, nickel and aluminium.  In an example hydrogen and secondary butanol are contacted with zinc oxide supported on pumice in tubes made of an iron alloy containing 0.1 per cent carbon, 2.2 per cent silicon and 13 per cent of chromium to give methyl ethyl ketone.  Similarly 2-pentanol is converted to methyl propyl ketone and isobutyl alcohol to isobutyraldehyde.ALSO:A catalyst, e.g. zinc oxide on pumice or copper and copper alloys, is contained in a tube the internal surface of which, at least, is made of an iron alloy of ferritic or austenitic structure containing less than 0.15 per cent by weight of carbon and more than 6 per cent of chromium.  The alloy may also contain silicon, manganese, nickel and aluminium.
Patent GB-1149904-A (GB)
Title: Fluid amplifier with adjustable positive feedback
IPC: F15C1/08
Filed: 1966-07-22
Abstract: 1,149,904. Fluid gauges. IMPERIAL-RIV S.r.L. July 22, 1966 [Aug.3, 1965], No. 33117/66. Heading G1M. [Also in Division G4] In the absence of a control signal in the conduit 14 of a mono-stable fluid amplifier the power stream at inlet 12 transverses a feedback channel 15 and acts in the divergence 16 to increase the face urging the power stream into the channel 15. Upon admitting a control signal into conduit 14 the power stream continues to circulate as previously until the signal pressure exceeds that of the feedback whereupon the power stream moves towards a divider 18 and the feedback pressure falls causing the power stream to snap over and flow into an output conduit 13. The switching point of the power stream is determined by an adjustable needle-type bleed-device 19 in the feedback channel 15. The output 13 may be converted to an electric signal by a micro-switch actuated through a lever and ball, the latter floating in the end of a conduit connected to the output; the ball and micro-switch may be replaced by a permanent magnet and reed switch, respectively, or by a hot-wire thermistor or anemometer. Each of the machining stages of a workpiece may be controlled by a separate amplifier, the power jets of which are supplied from a common source and the control jets are connected to a pressure indicator and a measuring nozzle all arranged in a single box and each amplifier having an electric output. The control conduit may be supplied by the same source as the power stream but is normally directed to an outlet and hence is inoperative until a workpiece is in the proximity of the outlet and causes a pressure build up in the control conduit. The effect of the control signal may be continued after the signal has ceased by connecting the conduit 14 to the signal via an adjustable throttle and an isolating valve, a 'capacity' being connected to the conduit therebetween.
Patent GB-482157-A (GB)
Title: Improvements in or relating to processes for the manufacture of magnesium or alloys thereof
IPC: C22B26/22
Filed: 1936-12-03
Abstract: Magnesium is obtained from magnesium sulphide, for example that prepared by the method described in Specification 465,421, by heating the anhydrous sulphide in admixture with reactive carbon such as low-temperature carbonization coke, with or without the addition of aluminium or an alkali or alkaline earth metal, in hydrogen, the reduced magnesium being distilled off and either condensed directly or alloyed with another metal in molten state in the condenser.
Patent GB-770413-A (GB)
Title: Improvements in or relating to pipe elbows for pneumatic and hydraulic conveyor pipelines
IPC: F16L57/06
Filed: 1953-11-30
Abstract: 770,413. Pipe bends. BIEGEL GES., O. Nov. 30, 1953 [Dec. 2, 1952], No. 33244/53. Class 99(1) The outer part of a pipe bend for hydraulic and pneumatic conveyer pipe lines is provided with a wear-resistant member 5 having a straight reflecting portion l merging at each end into arcuate portions 1 which merge into the pipes connected to the elbow, the portions 1 having a radius equal to the diameter d of the pipe line and the portion l having a length equal to the diameter d divided by the sine of half the deflection angle oc. A groove 3 may be formed in the member 5 at the point of maximum wear and filled with a softer material e.g. concrete. The ends of the pipe bend may carry sockets 6 for .the connection of the pipes, the interior surface of the sockets forming a continuation of the interior surface of themember 5.
Patent GB-486917-A (GB)
Title: Improvements in and relating to elastic couplings of rubber and metal, more particularly for motor vehicles
IPC: F16D13/68
Filed: 1936-12-04
Abstract: 486,917. Universal joints. GOLDSCHMIDT, M. Dec. 4, 1936, No. 33286. Convention date, Dec. 4, 1935. [Class 80 (ii)] A coupling member comprises a pair of opposed metal plates 5, 6 between which is secured, by vulcanization or the like, a rubber ring 10. The amount of relative turning of the plates is limited by claws 7, 8, Fig. 1, which are formed on the outer or inner peripheries of the plates 5, 6 and which engage with each other through the intermediary of the rubber which fills the spaces therebetween so as to prevent direct contact between the claws ; alternatively, studs 28, Fig. 6, which are fixed to each plate and which serve for securing the plates to the parts to be coupled, may extend with play through apertures in the ring 10 and the other plate, the apertures in the plates being lined by projecting parts of the rubber ring 10. The thickness of the ring 10 may increase from the inner to the outer periphery, so as to equalise the torsional stresses, as shown in Fig. 1. In the latter, the device connects the driven disc 1 of a friction clutch to its hub 4, the plate 5 being spaced from the disc 1 by insulating washers 11 of vulcanite or the like so as to afford spaces for the passage of air to dissipate heat produced by molecular friction. In the case of a shaft coupling, the shafts may be centred by a spherical spigot on the end of one shaft engaging in a socket in the end of the other shaft. At points where compressive or tensile stresses tend to arise, the rubber may be recessed.
Patent GB-1530780-A (GB)
Title: Linkage assembly for a window
IPC: E05C17/34
Filed: 1977-08-09
Abstract: 1530780 Lazy tong stays CATERPILLAR TRACTOR CO 9 Aug 1977 [13 Dec 1976] 33304/77 Heading E2F A stay especially for a top pivoted window comprises a lazy tong linkage pivoted at each end to attachment members 62, 63 and having a central friction pivot arrangement controlled by a knob 94 acting on a crossover of the links.
Patent GB-1355263-A (GB)
Title: Disengageable screw and nut mechanism
IPC: F16K31/143
Filed: 1971-07-15
Abstract: 1355263 Screw-and-nut mechanisms RESEARCH ENG CO 15 July 1971 [31 Aug 1970] 33323/71 Heading F2Q A travelling member 100 is slidably carried on a threaded rod 60 and carries a partial nut member 110 which is adapted to be moved into and out of engagement with the threaded rod 60 on rotation of a splined shaft 84 by means of a handle 82. The nut member 110 has a recess 115 in which is located a cam 120 which is secured to splined shaft 84. The member 100 carries a pin 140 which is engaged by a slot 134 in a yoke member 130, so that axial movement of member 100 causes rotation of a valve member to which yoke member 130 may be secured. Adjustable stops 172 are provided. A hand-wheel 50 is secured to shaft 60 for manual operation of the mechanism. Alternatively, the mechanism may be operated by hydraulic pressure acting on a piston 32 secured to the travelling member 100, the nut member 101 in this case being disengaged.
Patent GB-942225-A (GB)
Title: Improvements in or relating to valve systems
Inventor: SAFFRON RONALD GEORGE
IPC: B23Q1/00
Filed: 1961-09-19
Abstract: 942,225. Fluid pressure apparatus. FEMCO ENGINEERING CO. Ltd. Aug. 24, 1962 [Sept. 19,1961], No. 33483/61. Heading F1P. A valve system for the control of a working fluid comprises a first rotary valve 23 having a number of stationary indexing positions and arranged in each position to complete at least two independent circuits, a second valve 37 for connection in one of said circuits, and means for operating the valves such that the second valve modifies its related circuit during a stationary indexing position of the first valve. The rotary valve 23 has a shaft 1 integral with a stator 3 forming a bearing for a rotary indexing table 4 which carries a number of pairs of associated fluidoperable devices 24, 25 around its periphery. The device 24, which may be connected by a toggle to a pair of mould-halves, is joined by pipes 13, 14 to ports 9, 10 in the rotor 2 of the valve, the ports being joined to recesses 11, 12 connected, in the position of the valve shown, to ports 5, 6 which, in turn, are connected by pipes 7, 8, 32, 34 to a pump 30 and reservoir 31. The device 25, which may carry a tool 26 is connected by pipes 21, 22 to ports 19, 20 leading to recesses 17, 18 which are connected, in the position of the valve shown, to ports 15, 16 leading to pipes 38, 39 which, in turn, are connected to the second valve 37 and pipes 35, 36 leading to the pump and reservoir. The valve 37 may be of the reversing type to control the raising and lowering of the tool 26. In each stationary indexing position, all the toggle mechanisms have their devices 24 connected to the pipes 7, 8 for holding them in their appropriate positions. During a stationary period, the valve 37 is operable by a cam to operate a device 25 and tool 26. When a number of tools are provided, each tool is brought into the selected position for operation during the stationary period. Step-by-step motion of the indexing table may be effected by a Geneva wheel coupled to the table and actuated by a striker coupled to the cam, the valve 37 being operated during the non-striking period of the Geneva striker.
Patent GB-1506393-A (GB)
Title: Distillation column
IPC: B01D3/20
Filed: 1975-06-12
Abstract: 1506393 Distillation column BP CHEMICALS INTERNATIONAL Ltd 12 June 1975 [30 July 1974] 33565/74 Heading BIB A distillation column having a downcomer is provided with horizontal trays 2 perforated on the parts outside the downcomer with or without caps, baffle plates 3, and adjacent to cut away portions are plates 4, the upper edges of which extend above the level of the trays so acting as weirs, the lower edges being attached to plates 5 to deflect liquid onto the tray below. Plates 6, 7 provide with plates 5 the sealed downcomer and gaps "a", of varying dimensions, control the flow of liquid across the trays.
Patent GB-656716-A (GB)
Title: Improvements in sensitive diazotype sheets for screen reflectography
IPC: G03C1/52
Filed: 1948-12-31
Abstract: 656,716. Photographic diazotype reflex printing. GRINTEN, L. P. F. VAN DER, GRINTEN, P. A. W. VAN DER, and GRINTEN, K. J. J. VAN DER, [trading as CHEMISCHE FABRIEK L. VAN DER GRINTEN]. Dec. 31, 1948, No. 33639. Convention date, Dec. 31, 1947. [Class 98 (ii)] Sensitized diazotype sheets provided with a screen skin, of the type described and claimed in Specifications 626,501 and 630,874, are characterised in that the screen skin has a creasing characteristic (defined as breaking or cracking, resulting in the diminution of contact between the screen skin and the diazotype sheet) of 3-15 degrees and preferably 6-10 degrees, measured as the angle between the legs of a Schiefer flexometer with the curve of the sheet at a distance of 2.5 cm. from the joint of the flexometer and with the screen skin side bent inwards. A screen skin with a weight between 2 and 8 grams per square metre is suitable, and examples 1 and 2 describe sheets carrying screen skins of weights 5 and 4 grams respectively, as compared with weights of 30 and 15 grams of the examples of Specification 630,874. When the creasing characteristic is measured in the flexometer it is observed that creasing begins when the screen skin sheet is bent towards its screen skin side with its curve at a distance 11 of 2.5 cms. from the joint 12 of legs 13, 14 of the flexometer, when these legs enclose an angle as of 15 degrees, as shown in Fig. 3. After reflex exposure the screen skin sheet is sharply bent on a sharp edge and passed along this edge under tension, whereby the screen skin loosens and may be removed by hand, to enable the diazotype layer to be developed.
Patent GB-957744-A (GB)
Title: Improvements in or relating to labelling or sealing machines
Inventor: FAIREST DEREK HOWARD
IPC: B65C1/02
Filed: 1961-09-21
Abstract: 957,744. Feeding sheets. MORGAN FAIREST Ltd. Dec. 7, 1962 [Sept. 21, 1961], No. 33813/61. Heading B6B. [Also in Division B8] In a labelling machine (see Division B8) labels are transferred from a stack 23 by a rotary drum having pivotal, suction, sector plates 22. The plates 22 (Fig. 12) pivoted at 44 are spring- loaded outwardly 46, 47 and limited by a screw 48. Suction supply lines 30 pass to ports 31 in a valve plate 32 (Fig. 9) rotatable with the drum. A stationary valve plate 33 (Fig. 8) contains slots shaped so as to apply suction to a sector plate which is passing the supply stack 23 and hold the suction until the label is positioned on the article A.