baber/WOPTO huggingface dataset:
Patent GB-941338-A (GB)
Title: Systems for compounding gaseous mixtures
Inventor: BAXTER IAN GEORGE
IPC: B01F23/10
Filed: 1961-07-05
Abstract: 941,338. Mixing inhalant gases. BRITISH OXYGEN CO. Ltd. June 29, 1962 [July 5, 1961], No. 24326/61. Heading A5T. [Also in Division B1] Apparatus for compounding gas mixtures comprises a mixing chamber 1 to which the gases are supplied in a pro-selected ratio by metering orifices 4 (which may be adjustable) and a pressure-equalizing means including a chamber 5 divided by a flexible diaphragm 6, and gas inlets 7 having valves 8, 9, the valve members 9 being coupled to the flexible diaphragm; the distance between the valve members or the valve seats being variable in response to the mixed gas pressure so as to vary the degree of opening of the valves in a manner to keep the mixed gas pressure constant irrespective of demand rate. As shown, the mixed gas pressure acts on the piston 12 to vary the distance between the valve members 9 by means of the differential device 11, which may be a mechanical lever, gear and screw device or an hydraulic device. In another embodiment, see Fig. 2 (not shown), the valve members are rigidly coupled together and the piston acts directly to vary the position of one of the valve seats, a differential device not being necessary. The apparatus may be used for anaesthetic gases, the outlet 2 being connected to a face mask, or for combustible gases.
Patent GB-501922-A (GB)
Title: Improvements relating to folding cartons and containers
IPC: B65D5/44
Filed: 1937-09-08
Abstract: 501,922. Cartons. GILL, W. V., GILL, F. J., GILL, C. W., and HOWELL, H. R. Sept. 8, 1937, Nos. 24447 and 14016. [Class 18] A folding carton of pasteboard, stiff paper &c. has certain of its walls reinforced by a projecting rib n formed during the setting-up of the box by the inward movement of one end of a creased strip g the other end of which is stitched at h to the wall. The front wall b, o, folds over flaps m. on the ends and is secured by the engagemcnt of a strip q beneath tab r. Tongues on the lid engage slits in the front to secure the box. In a modified form the strip g is constituted by a strip f of appropriate width which may have lateral extensions lying within the walls of the box. Notched lateral extensions on the end walls reinforce the back wall and are secured by slits in the back wall and in one of the extensions.
Patent GB-841425-A (GB)
Title: Apparatus for the concentration of minerals and similar heavy materials
IPC: B03B5/62
Filed: 1956-08-10
Abstract: 841,425. Washing granular materials; sorting solid materials. GARRATY, C. J., and SAMPSON, R. Aug. 10, 1956 [Aug. 16, 1955; March 5, 1956; May 30, 1956], No. 24507/56. Classes 82(2) and 117 Minerals and similar heavy materials are concentrated in either the dry or wet conditions by an apparatus having at least one rotating conical vessel 10 on an inclined axle 11 part of which is hollow and. communicates with the interior of the vessel 10 by a port 30. One fraction is thus discharged through the shaft into the hopper 31 and the tailings pass over the edge .75 of the vessel. A plate 21 may be used to assist the separation and the vessels may have various contours of inner surface to assist the action. Several vessels are preferably employed as shown and for such separation the whole apparatus may be mounted in a tank of water.
Patent GB-202858-A (GB)
Title: Improvements in fittings for braces for personal wear
IPC: A41F3/02
Filed: 1922-09-12
Abstract: 202,858. Walker, Ltd., T., and Wood, H. H. Sept. 12, 1922. Braces.-In braces of the kind wherein cord tab-ends are arranged to slip freely over convex runners pivoted to runner-fittings attached to the brace webbing, the lugs 3 by which the runner 1 is pivoted between the checks of the fitting 6 are arranged substantially on a level with the cord seating of the runner. In a modification, Fig. 7, the lugs 3 are bent down and formed with recesses or piercings 9 which are engaged by projections 10 on the, cheeks 6 to form a pivotal connection. The invention is also shown applied to the "President " type of brace. Specification 20348/02 is referred to.
Patent GB-1136585-A (GB)
Title: Remote handling device
Inventor: FORTIN MARCEL
IPC: B25J13/02
Filed: 1966-06-03
Abstract: 1,136,585. Manipulators. COMISSARIAT A L'ENERGIE ATOMIQUE. 3 June, 1966 [11 June, 1965; 15 Oct., 1965], No. 24877/66. Heading B4Q. A manipulator comprises a tubular body 4 pivoted at the handle end, Fig. 3, to a sleeve 6 and at the grab end, Fig. 2, to a sleeve 8. The sleeve 6 is pivoted to the body 4 by a pivot 11 and is coupled by a link 15 to a link 18 slidable in the body, the other end of the link 18 being coupled at 19 to the sleeve 8, a link 23 coupling the sleeve 8 to the body 4 whereby pivotal movement of the sleeve 6 relatively to the body 4 causes a corresponding movement of the sleeve 8. A pistol-grip handle (1) (Fig. 1a not shown) is carried by an end-piece 26 rotatable in the sleeve 6, this rotational motion being transmitted through hollow links 52 interconnected by universal joints (Fig. 4, not shown) to a tube 50 rotatable in the body 4, the other end of the tube being connected by further links 52 to an end-piece 42 rotatable in the sleeve 8. The end-piece 42 is connected by a bayonettype mechanism (Fig. 6, not shown) to the grab body 33 whereby rotation of the handle (1) about the axis of the sleeve 6 causes a corresponding rotation of the grab 2 about the axis of the sleeve 8. The grab jaws 32 are biased to the closed position by a spring 38 acting on a pin 35 and are opened by sliding movement of an end-piece 36 abutting the pin. The end-piece 36 is moved by a transmission system comprising a trigger (5) pivoted on the handle (1), an end of the trigger abutting the end of a rod 28 slidable in the end-piece 26, this rod being connected by a flexible rod 48 to a rod 46 movable in the tube 50, the other end of the rod 46 being connected by a flexible rod 47 to the endpiece 36, the rods 47, 48 passing through the hollow links 52. A ratchet mechanism (Figs. 5, 7, not shown), on the handle enables the jaws 32 to be retained in the closed position.
Patent GB-893191-A (GB)
Title: Improvements in or relating to apparatus for handling moulding boxes
IPC: B22D33/00
Filed: 1958-08-01
Abstract: 893,191. Moulding apparatus. BUDERUS' SCHE EISENWERKE Aug. 1, 1958 [Oct. 26, 1957], No. 24909/58. Class 83 (1). [Also in Group XXX] Apparatus for forming sand moulds, for use in the casting of metals such as iron and steel, comprises an automatically controlled lifting device 22 supporting an empty mould box 7 which device is first moved radially towards the centre of rotation of a table 1 carrying a plurality of pattern plates 5 and rotating at a constant speed, and is then rotated synchronously with the table about the centre of rotation thereof and places the mould box on a selected plate 5. The box is partially filled with sand by a conveyer belt 9 via a funnel 10, and is completely filled at 11 by a sand-slinging machine 12, the sand being consolidated at the same time. Surplus sand is removed at 13 by a cylinder 14, the filled mould box is removed at 15 by a lifting device 23, and the plate 5 is cleaned by a brush roller 17 at station 16. Lifting devices 22, 23 are identical in construction and each comprises a pneumatically-operated crab 26 movable along the arms of the device, a vertically reciprocable frame 30, and grippers 29, said frame and said grippers being pneumatically operated. The arms 24, 25 of the lifting devices carry rollers 31 at their outer ends which run along a curved rail 32, and the arms are coupled to the table by members 33. Roller conveyers 18, 21 transport the boxes to and from the devices 22, 23 respectively. The filled mould box delivered by conveyer 21 forms one half of a sand mould and the other half may be similarly formed or so located on the conveyer 21 that the upper half is placed thereon by the device 23.
Patent GB-943093-A (GB)
Title: A zoom lens
IPC: G02B15/14
Filed: 1960-07-18
Abstract: 943,093. Zoom lenses. BELL & HOWELL CO. July 18, 1960 [Dec. 24, 1959], No. 24928/60. Heading G2J. The zoom lens comprises a positive front lens group 1 of focal length f 1 , an intermediate negative zooming lens group 2 of focal length f 2 , a positive simple lens 3 and a fixed positive rear lens group 4. The lens 3 forms an afocal system with the groups 1 and 2, one of the group 1 and lens 3 being fixed while the outer is movable during zooming to effect focus compensation. In this lens, the following conditions are satisfied:- Optical data are given for an example of the lens shown.
Patent GB-1494609-A (GB)
Title: Coin tester
IPC: G07D5/02
Filed: 1976-06-16
Abstract: 1494609 Coin testers AUSTRIA TABAKWERKE AG 16 June 1976 [8 July 1975] 24956/76 Heading G4V A coin tester has a coin channel 1 that slopes downwardly. In the region of one or more magnets 2 the floor of the channel is angled so that coins not attracted by the magnet or magnets moves down the slope as shown by coin 41. In the wall 6 opposite the magnet or magnets there is an aperture 5 through which a counterfeit coin can pass into a further channel 8 and thence to a locked box. When coins reach the end of coin channel 1 the trajectories they follow are dependent on the retardation caused by the eddy currents induced therein by the magnet or magnets. Acceptable coins 5 pass to a coin-receiving passage whilst unacceptable coins are returned to the operator.
Patent GB-1001819-A (GB)
Title: Improvements in shoe lasting machines
IPC: A43D21/12
Filed: 1964-06-16
Abstract: 1,001,819. Lasting machines. J. S. KAMBORIAN. June 16, 1964 [July 11, 1963], No. 24970/64. Heading A3B. A method of lasting an end of a shoe includes the steps of effecting translational movement of a pair of wipers and then closing the wipers, prongs on the underside of the wipers engaging the lasting margin of the upper during the closing movement of the wipers to drag the lasting margin inwardly across the last. As described the heel-seat lasting machine of Specification 963,724 has modified wipers and wiper actuating mechanism to perform independent translational and closing movements. The wipers 166 (Figs. 9, 10) have prongs 194 formed on their under surface 191 at the forward ends of the wipers. The wipers 166 are supported by wiper cams 164 (Fig. 8) which rest on a plate 136 which is slidable in the cover 71. The plate 136 is moved lengthwise of the shoe to effect translational movement of the wipers by a piston and cylinder 140 mounted on a base plate 68. The wipers 166 are closed by links 162 connected to a bar 158 which is moved forwards to close the wipers by a piston and cylinder 174. In operation, at the appropriate stage in the machine cycle cylinder 140 is operated to move the wipers forward to the position shown in Fig. 18, the prongs being clear of the upper during this movement. Cylinder 174 is then operated to close the wipers to the position shown in Fig. 19. During this closing movement the hold-down 206 (Fig. 18) is retracted so that the lasting margin of the upper is pressed against the wipers by the shoe support (not shown) and the prongs 194 engage the lasting margin and drag it inwardly to tension the upper about the last. Specifications 963,721 and 963,722 are referred to.
Patent GB-899531-A (GB)
Title: Improved apparatus for winding coils and the like
Inventor: PALMER THOMAS HENRY
IPC: B65H54/28
Filed: 1957-08-08
Abstract: 899,531. Winding wire. AVO Ltd. Aug. 8, 1958 [Aug. 8, 1957], No. 24998/57. Class 120(2) [Also in Groups XXXV and XXXVII] In a coil winding machine the spindle and the traverse guide are separately driven under the control of a variable electrical control circuit which operates to regulate the movements of the spindle and the guide to hold them in proper relationship for winding coils with wires of different gauges and in different lays. As shown the spindle 1 carrying takeup former 2 is driven by gearing from motor 10. The traverse guide 3 is reciprocated by the lead screw 5 driven by flexible shaft 11 from reversible type motor 9 controlled by microswitches 14, 15. The wire is kept under tension by passing it round a pulley 8 mounted on spindle 17 extending between movable spring loaded arms 18 controlled by a tensioning solenoid 19 and the spindle 1 operates a counter 16 indicating the number of turns wound. The speeds of motors 9 and 10 are regulated by an electrical control circuit (see Groups XXXV and XXXVII).
Patent GB-692920-A (GB)
Title: Improvements relating to polish distributing and like apparatus
Inventor: COLLINS JOHN HENRY
IPC: B24B57/00
Filed: 1950-07-11
Abstract: 692,920. Grinding and polishing. KINGSLAND ENGINEERING CO., Ltd. July 11, 1951 [July 11, 1950], No. 25021/52. Divided out of 692,869. Class 60. Apparatus for distributing polishing or like paste 35, Fig. 5, in cake-form to grinding, polishing, or the like discs 34 comprises a screwthreaded shaft 16, Fig. 1, that is'reciprocated longitudinally and rotated intermittently, and a slide 1 which engages the shaft 16 and supports the paste 35. The cake is held between jaws 3, 4 on the slide, the jaw 4 being urged by its supporting spring 7 to grip the cake. A handle 9 may be disengaged from a clip 12, 13 and pivoted about its axis 11 to disengage the jaw 4 by co-operation between a pin 10 on the handle and the spring 7. The slide 1 is mounted on the bars 2 and lead screw 16 of a carriage 2, 18, Fig. 2, that can be reciprocated to apply the cake 35 to the disc 34 and withdraw it therefrom, the bars sliding in bearings in the ends of a holder 19 having slots 32 by which it is fixed to the machine. The reciprocations are produced by a cam 22 rotated by a motor 20 driving through a reduction gearing 21, the cam being followed by a plate 23 attached to the member 18 of the carriage and bearing on the cam under the weight of the carriage and slide. The slide 1 is advanced along the carriage during each withdrawal thereof to compensate for wear of the cake by rotation of the screw 16 produced by the cam 22 as it rocks a bell-crank lever 25, 27, Fig. 1, having a pawl 24 driving a pawl-wheel 26 secured to the screw 16. A spring 28 returns the lever 25, 27 against a stop-screw 30 that can be adjusted to regulate the extent to which the screw 16 is turned to compensate for wear of the cake. The slide 1 engages the screw 16 by means of a half-nut, Fig. 4 (not shown), carried by a resilient member that can be deflected to disengage the nut and permit rapid adjustment of the slide. The bars 2 of the carriage may be protected by rubber sleeves (not shown), and the carriage may carry a stop-rod 38 to limit movement of the slide.
Patent GB-183104-A (GB)
IPC: H01C8/02
Filed: 1921-09-21
Abstract: 183,104. Schneider, F. July 13, 1921, [Convention date]. Coherers; crystal and valve detectors.-Rectifiers of the microphone' type consist of a spherical block of crystalline rectifying-material such as silicon, molybdenum glance, pyrites, carborundum, &c., bridging a gap between two electrodes, along which the block is movable. As shown in Fig. 1, the gap w is formed between a circular electrode g and an annular-electrode h both resting on an insulating base a and in connection respectively with terminals c, d. The spherical block k rests in the gap and is pressed down by an isulating-plate m under the influence of a spring o. The stem of the plate m slides in a bush i mounted to rotate in a yoke b, and when the bush i is rotated by a knob q, a radial pin n causes the stem to be rotated with it, and the block k is rolled along the gap to the position of maximum sensitiveness. The contact pressure is adjusted by a cap p bearing on the end of the spring. The electrode g may be placed eccentrically within the annular electrode h. The edges of the gap may be rectangular or bevelled, and may be roughened; or the electrodes may be formed as plates with turned-up edges. The contact pressure may be established merely by the weight of the block or blocks k, the disc m having apertures to receive and guide the blocks. In a modification shown in Fig. 6, the plate m is of conducting material and forms one electrode, the other electrode g having a shallow groove of semicircular section with which the block k makes contact at two points. The plate m may be similarly grooved. In another modification, shown in Fig. 11, the plate m is formed as an inner circular electrode g and an outer annular electrode h with a gap w between lying over the gap in the fixed electrodes. Two spherical blocks k are held between the two gaps, and one external lead u is connected to the inner electrodes g, and the other v to the outer electrodes h. The electrodes may consist of two or more rods placed side by side with longitudinal gaps between them bridged by one or more spherical blocks. The members g, h may be made of rectifying-material and the blocks k of metal.
Patent GB-1317269-A (GB)
Title: Use of oxalic acid for the hydrolysis of steroid conjugates
IPC: G01N33/74
Filed: 1970-05-26
Abstract: 1317269 Pregnancy tests SEARLE REFERENCE LABORATORIES Inc 26 May 1970 [26 May 1969] 25077/70 Heading B1X [Also in Division C2] The determination of steroids in the urine of pregnant females is effected by boiling a 24- hour urine specimen with oxalic acid to hydrolyse the conjugates of steroids and sulphuric or glucuronic acid present (using, for example, 1 ml. of urine, 1 gm. of oxalic acid, and, also, 200 mg. of Na Cl), then after cooling extracting the steroids with a suitable solvent, e.g. dichloromethane, removing the aqueous layer, and, after evaporation of the solvent, determining the steroids by a suitable colourimetric method.
Patent GB-1342965-A (GB)
Title: Thermal oxidatively stable polycarbonate
IPC: C08K5/1515
Filed: 1971-04-19
Abstract: 1342965 Polycarbonates GENERAL ELECTRIC CO 19 April 1971 [15 April 1970] 25138/71 Heading C3R A thermal oxidatively stable polymer is produced by reacting in an organic medium a dihydric phenol with a carbonate precursor in the presence of an acid acceptor, a catalyst, a molecular weight regulator and 0À0005-0À01 mole per mole of dihydric phenol of a phosphorus dihalide of the formula in which X is fluorine, chlorine, bromine or iodine and R is an aryl, haloaryl, haloalkyl, alkyl, cycloalkyl, aralkyl or alkaryl radical containing 1-25 carbon atoms. The dihydric phenol may be a bisphenol, dihydric phenyl ether, dihydroxy diphenol, dihydroxyaryl sulphone, dihydroxybenzene or dihydroxydiphenyl sulphoxide, the carbonate precursor may be a carbonylhalide or bishaloformate, the acid acceptor may be a tertiary amine or alkali or alkaline earth metal hydroxide, carbonate, bicarbonate or phosphate and the molecular weight regulator may be phenol, cyclohexanol, methanol, paratertiary butyl phenol or parabromophenol. A moulding composition may comprise the polycarbonate and 0À01-1% by weight of an epoxy compound of the formula in which R 1 , R 2 , R 3  and R 4  are hydrogen, alkyl, eyeloalkyl, substituted cycloalkyl, aryl, substituted aryl or heterocyclic radicals containing 1-24 carbon atoms, or any two of the radicals R 1  to R 4  may, together with the radical form a cycloalkyl ring. In examples 2,2- his - (4 - hydroxyphenyl) - propane, phenylphosphorus dichloride and phosgene are reacted together in the presence of methylene chloride, calcium hydroxide, p-tertiary butyl phenol and tri-ethylamine, and the phosphorus containing polycarbonate produced blended with 3,4- epoxy - cyclohexylmethyl 3,4 - epoxy - cyclohexane carboxylate and moulded.
Patent GB-1513689-A (GB)
Title: Dual-temperature deuterium exchange apparatus
IPC: C01B4/00
Filed: 1976-06-17
Abstract: 1513689 Dual temperature deuterium exchange ATOMIC ENERGY OF CANADA Ltd 17 June 1976 [9 Sept 1975] 25157/76 Heading C1A A dual-temperature deuterium exchange apparatus comprises first and second stages each having a cold tower, a hot tower, a humidifier and a dehumidifier, a gas stream passing in countercurrent isotope exchange relationship with a liquid stream in the towers in use of the apparatus, the first stage 1, 2, 3, 4 having heat exchange means between the humidifier and the dehumidifier and formed of humidifier and dehumidifier recycle loops 21, 17 passing through a heat exchanger 5; means 16 for feeding a portion of the liquid stream passing in the dehumidifier recycle loop of the first stage to the top of the humidifier of the second stage, means 25 for feeding the liquid stream passing through the humidifier of the second stage back to the humidifier recycle loop of the first stage, and means 11 for passing liquid 22 from the first stage in heat exchange relationship with liquid in a dehumidifier recycle loop 28 of the second stage.
Patent GB-736320-A (GB)
Title: Improvements in or relating to centrifugal dust separators
Inventor: EASTON JOHN ANDERSON
IPC: B04C11/00
Filed: 1952-10-08
Abstract: 736,320. Centrifugal separators. HOWDEN & CO., Ltd., J. Oct. 2, 1953 [Oct. 8, 1952; Sept. 21, 1953], Nos. 25263/52 and 25942/53. Class 23. In a multi-cell dust separator having return flow type cells, fine dust deposited in the gas outlet tubes of the cells is removed by the scavenging action of coarse dust supplied through the inlets of the cells and caused to flow out through the gas outlet tubes by lowering the separating efficiency of the cells. In the construction shown in Fig. 1 gas is admitted to the separator 20 by an inlet duct 23, dust from the cells 28 is collected in a common hopper 40, and clean gas from the outlet tubes 32 is discharged by an outlet duct 24. The outlet duct has a partition 34 and dampers 37, 38 which are open during normal operation. To remove fine dust from the gas outlet tubes of the cells which discharge into the part 36 of the outlet duct, the damper 37 controlling the part 35 of the outlet duct is closed. The gas entering the cells normally discharging into the port 35 passes out through the dust outlets 30 into the hopper to enter the dust outlets of the cells whose gas outlet tubes discharge into the part 36. The efficiency of these latter cells is thereby decreased so that coarse dust particles pass through their outlet tubes removing the fine dust deposit. The gas outlet tubes of cells which discharge into the part 35 are cleaned by opening the damper 37 and closing the damper 38. In the modification shown in Figs. 9, 10 the efficiency of separation is maintained during cleaning. The separator comprises three groups of cells each group having an outlet chamber forming part of the outlet duct 24. Each outlet chamber is connected by branch ducts to the inlet of a fan 78 discharging into the inlet duct 23. Dampers 37, 38, 74 are provided in each outlet chamber, and dampers 82 in each branch duct. To clean the gas outlet tubes of the central group of cells which discharge into the part 36 of the central outlet chamber the dampers of the central group are set as shown, the dampers of the side groups are opened, and the fan is started so that particles passing through the gas outlets are returned to the gas inlet duct for retreatment. The cells may have axial or tangential inlets.
Patent GB-712426-A (GB)
Title: Improvements in or relating to plain bearings
Inventor: LOVE PHIL PRINCE
IPC: F16C33/12
Filed: 1951-10-30
Abstract: A plain bearing (see Group XXXIV) is proviided with a porous surface of molybdenum which is sulphided by the use of a balanced gas mixture of hydrogen and hydrogen sulphide at a sulphiding temperature of 800-850 DEG C.  Specifications 657,080 and 657,085, [both in Group XXXIV], are referred to.