baber/WOPTO huggingface dataset:
Patent GB-985416-A (GB)
Title: Improvements in or relating to the production of plastics material footwear
IPC: B29D35/08
Filed: 1961-11-14
Abstract: 985,416. Injection moulding soles in two materials. H. LUDWIG, [trading as DEUTSCHE SPEZIALMASCHINEN CO. H. LUDWIG KOMM.-GES.]. Nov. 14, 1961 [Nov. 25, 1960; Oct. 17, 1961], No. 36003/64. Divided out of 985,415. Heading B5A. Footwear soles are moulded in at least two different materials or colours by using separate passages 30, 31 for injecting into the space between a lasted upper 27 and a movable ram 26 in the mould. The ram is withdrawn to permit the successive injections and may be provided at a corner 26a with a short groove 31, permitting a second injected sole layer 33 to be masked by the first layer 32. The outer sole is abrasionresistant.
Patent GB-1464606-A (GB)
Title: Pipe cutting and preparing device
IPC: B23B5/16
Filed: 1974-08-16
Abstract: 1464606 Pipe cutting and chamfering apparatus COMPAC-CUTTING MACHINE CORP 16 Aug 1974 36132/74 Heading B3T A pipe cutting and end preparing apparatus comprise a plurality of pairs of semicircular segments assemblable together around a pipe to be cut and to be supported thereon, the pairs of segments including pipe gripping means in the form of collet members 20A, 20B adjustably mounted on a split body assembly 16 securable to a main housing assembly 12 formed by parts 12A, 12B, an annular gear 34 is rotatably supported on the body assembly 16 and is driven around the body by way of a pinion 35 mounted in the main housing part 12A. A cutter carriage ring 42A, 42B is attachable to the gear 34 for rotation therewith to move the cutter carriage and tool 51 around the pipe when secured by the collet members. The cutter carrier 50 is displaceable radially of the pipe by way of a screw 53 actuated by worm and wheel means 57, 55 which is actuated by a star wheel 59 which engages a pin 61 extending from the housing assembly 12 whereby at each rotation of the cutter around the pipe an incremental infeed of the cutting tool is provided. The operation of the apparatus is effected by engaging a power tool in a polygonal shaped recess 36A in the shaft 36 of the pinion 35.
Patent GB-1222463-A (GB)
Title: Improvements in switches with selection by co-ordinates
Inventor: LUCAS PIERRE
IPC: H01H67/26
Filed: 1969-07-22
Abstract: 1,222,463. Electric selectors. P. LUCAS, A. SAUTEL, and S. CHOUPIK. 22 July, 1969 [26 July, 1968], No. 36806/69. Heading H1L. In a mechanically latched cross-bar switch having two sets of orthogonal bars X, Y, each X bar 11 of one set 10 carries a plurality of spaced fork contacts 110 which normally rest on an insulating side 29 of respective bars of the other set 20 and each of the latter Y bars has a number of notches 211 through which a fork can pass after selective movement of one bar in each set so that the fork eventually rests on a conducting side 21 of the moved Y bar. Insulating plates 26, 25, 24 are spacedly located between each composite conductive/insulating bar of the Y set. Since all movements of an X bar cause its forks to resiliently engage a bar or a plate vibration of the contacts is very heavily damped. With the crosspoint shown, three contacts are simultaneously operated. The X bar 10 comprises three subsidiary bars 11, 12, 13, each of which carries a plurality of forks of which only one for each bar can be seen at 110, 120, 130. Each subsidiary bar and its forks are formed by cutting and bending a single metal sheet (Fig. 2, not shown). The forks of the three subsidiary bars are aligned and potted in a dielectric (e.g. polycarbonate) block 14. The top of the block is saw-toothed such that each fork has more freedom of movement in the X direction than in the other direction. The blocks are L-shaped at one end and T-shaped at the other, the one arm of the L and the two parts of the bar of the T carrying pegs which slide in apertures in the switch frame, such that transverse movement of a bar is prevented (Fig. 3, not shown). The Y bar 20 comprises three subsidiary composite bars 21/211, 22/22<SP>1</SP>, 23/23<SP>1</SP>, which are notched as at 211 ... 232 to allow passage of the tines of the corresponding forks. In operation bar 20 is moved to the left so that tines 131, 121, 111 become aligned with notches 231, 221, 211, respectively (and similarly for tines 132 &c. and all the other tines pertaining to not-shown X bars). Then X bar 10 is moved to the left so that the tines of forks 130, 120, 110 pass through the notches and abut against insulating plates 24, 25, 27, whereafter bars 20 and 10 are restored in turn so that contact is made between the tynes and the conductive faces of their respectively co-operating subsidiary Y bars. In order to release the connection, the Y bar is moved to the left momentarily whereby the resilient tines emerge from the notches and adopt their rest position in contact with the insulating faces of the subsidiary Y bars when the Y bar restores. .
Patent GB-1083635-A (GB)
Title: Method and apparatus for the treatment of pulverulent materials and granulates
Inventor: GRUN GUSTAV
IPC: B01F33/40
Filed: 1964-09-08
Abstract: 1,083,635. Mixing pulverulent materials; centrifugal separators. G. GRUN [trading as GEBRUDER GRUN KOMMANDITGESELLSCHAFT]. Sept. 8, 1964, No. 36818/64. Headings B1C and B2P. [Also in Division F2] Mixing A method and apparatus for mixing pulverulent and/or granular materials comprises a container 1 with a hopper shaped lower portion 2 intermittent pulses of compressed air being introduced through nozzles 9 which are directed upwardly and tangentially so that the material is circulated in an outer ascending vortex A and an inner descending vortex B. The nozzles 9 are preferably Laval nozzles whereby the air may be raised to supersonic speed; the material is allowed to settle at least to fluid state between pressure waves. There is a charging closure 33 and conical discharging closure 3 both pneumatically actuated. Compressed air is supplied by a pneumatic valve 33 to a ring manifold 5 and thence through removable filters 25 to the nozzles 9. Separating A centrifugal impeller 14 is operated during each pressure wave and allows air to escape into. the discharge pipe 11 while throwing solids back into the container; the impeller may comprise vertical vanes 19 (Fig. 1) or a plurality of spaced annular discs 19a (Fig. 6) between a disc 17 and an annular disc 18 with collar 20 projecting into the discharge pipe. There may be a vibrated filter 17a downstream of the impeller.
Patent GB-1271733-A (GB)
Title: Process for recovering a metal oxide and sulfur dioxide from a metal sulfate
IPC: C01B17/50
Filed: 1969-07-22
Abstract: 1,271,733. Sulphur dioxide; metal oxides. ELCOR CHEMICAL CORP. 22 July, 1969 [22 July, 1968], No. 36863/69. Headings C1A and C1N. A metal sulphate is converted to sulphur dioxide and the metal oxide, by first subjecting the sulphate to reducing conditions to produce sulphur dioxide, the metal oxide and the metal sulphide, and then subjecting the mixture of solids thus obtained to oxidizing conditions to convert the metal sulphide to metal oxide, metal sulphate and sulphur dioxide. Preferably the reactions occur in the range 2000-2500‹ F., and the reducing gas comprises a hydrogen/carbon monoxide mixture, while the oxidizing gas may be e.g. air. The process is especially suitable for alkaline earth metal sulphates but those of aluminium, cerium, chromium, cobalt, potassium, lithium, sodium, nickel, lead, thorium, titanium, vanadium and zinc may also be treated. A series of reduction-oxidation cycles may be invoked so that substantially all of the sulphur content of the sulphate is driven off as sulphur dioxide (which may then e.g. be converted to sulphuric acid). Suitable apparatus for the execution of the process is described. The process is particularly applicable to processing of CaSO 4  in lumps of 0À25-1À50 inches in maximum dimension.
Patent GB-1322132-A (GB)
Title: Apparatus for forming sand or like powdered or granular material piles in soft ground for drainage
IPC: B28B7/02
Filed: 1971-08-05
Abstract: 1322132 Wells &c FUDO KENSETSU CO Ltd 5 Aug 1971 [25 May 1971] 36892/71 Heading E1F Apparatus for forming compacted columns 13 of granular material in earth comprises a tube 1 driven by a device 3 and having a reciprocable sleeve 4 connected to the inside of the tube by hinged segments 5, 6. The tube is driven into the earth to the depth of the column, the sleeve rising and causing the segments to form a neck 7 to prevent earth entering the tube. On reaching the required depth the tube is raised, the segments hanging down so that sand 12 supplied through a hopper 2 flows into the cavity below the tube. The tube is driven to compact the sand 12' in the cavity and then raised to admit more sand to the column, these steps being repeated until the whole column is formed. In modifications the sleeve is outside the tube, a flexible tube protects the segments from earth, a resilient sponge block is inserted in the annulus between the segments and the tube, and the sleeve is reciprocated by a device or devices internal or external of the tube.
Patent GB-1104518-A (GB)
Title: Process for the preparation of samples for measurement of isotopes by means of mass spectrometers
IPC: H01J49/16
Filed: 1965-08-27
Abstract: <PICT:1104518/C6-C7/1> A sample 2 of low volatility material for analysis by mass spectrometry is evaporated by passing a current through the body of the sample so that it may be heated to temperatures of to 3000 DEG C. through its own resistance and the contact resistances at the surfaces of the current supplying electrodes 1, the material depositing on filaments 8 for subsequent evaporation in the ion source. The sample body may consist of a kernal of uranium and/or thorium carbide sheathed with coatings of carbon, silicon carbide and pyrolytic graphite.  During the processing a halogen containing gas is supplied at 10.  The process may be carried out in the ion source itself the sample being clamped between spring contacts.
Patent GB-849656-A (GB)
Title: Improvements in or relating to circuits for the electrical measurment of time intervals
Inventor: BRASH ROBERT ALEXANDER
IPC: G04F10/10
Filed: 1955-12-24
Abstract: 849,656. Electric measurement of short time intervals. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 24, 1956 [Dec. 24, 1955], No. 37020/55. Class 37 Apparatus for generating an impulse and measuring the time interval between the generation of that impulse and the reception of an impulse from apparatus under test comprises a Miller-integrator-circuit including a pentode 1 biassed to cut-off by its suppressor which is connected through resistances 9, 10 to a negative supply. To start the timing period, switch-contacts 11, 20 are closed to (i) discharge capacitor 6 through resistances 7, 8, 9 providing an output pulse and (ii) earth the supressor to start the valve 1 conducting (so that capacitor 12 discharges through resistance 14). A negative pulse from the apparatus under test is applied to capacitor 19 to apply a negative bias through diode 17 to the grid of triode 13 to interrupt the integrating circuit. The anode current of pentode 1 as shown by meter 2 is an indication of the elapsed time between the generation of the output pulse and the reception of the negative pulse. Specification 580,527 is referred to.
Patent GB-454318-A (GB)
Title: Improvements in and relating to lead-in arrangements for electric conductors
IPC: C04B37/02
Filed: 1934-12-27
Abstract: 454,318. Leading conductors through partitions. PORZELLANFABRIK KAHLA, Kahla, Thuringia, Germany. Dec. 27, 1934, No. 37078. Convention date, Dec. 27, 1933. [Class 36] A vacuum - tight arrangement for leading a conductor through a ceramic or other inorganic insulating wall comprises a carrier of ceramic or other inorganic insulating material having a burnt-on metal, more particularly a noble metal, coating which constitutes the lead-in conductor and which is sealed to the insulating wall by a fused j oint consisting of one or more layers of glass, glaze, or enamel flux, the coefficient or coefficients of expansion of the material or materials of the joint being lower, preferably 10-40 per cent lower, than the coefficients of expansion of the carrier and wall. Fig. 1 shows an inorganic insulating tube 10, preferably of the material known under the Registered Trade Mark " Calit," having a burnt-on silver or platinum coating 11 and passing through an aperture in a " Calit "wall 14. The coating 11, which may be thickened by electrodeposition, is covered by a thin layer of glaze 12 which is sealed to the wall 14 by enamel flux 13, the coefficients of expansion of the glaze and enamel flux being less than that of " Calit," preferably 10-40 per cent less. As shown in Fig. 3, a multi-conductor lead-in for a high vacuum tube 25 comprises coaxial ceramic tubes 15, 26, 16 connected together and to the ceramic base 24 of the tube by layers 22, 27, 23 of enamel flux, of which the layer 23 has a coefficient of expansion lower than that of the tube 16 and base 24. The tubes 15, 16 have burnt-on noble metal coatings 17-20 which constitute the lead-in conductors for the electrodes of the vacuum tube. The tube 15 is closed bv enamel flux 21.
Patent GB-344785-A (GB)
Title: Improvements in or relating to sound gates for talking film apparatus
IPC: G03B31/02
Filed: 1929-12-04
Abstract: 344,785. Reproducing recorded sound. SCHIFFL, F., 11, Elsworthy Terrace, Hampstead, and HEYL, E. O., 15, Down Street, both in London. Dec. 4, 1929, No. 37164. [Class 40 (ii).] Optical apparatus.-A " sound gate in optical reproducing apparatus is so constructed that the margins of the film are supported by flexible endless bands, passing over shouldered portions on twopart rollers over which the film moves, so that damage to the film as it passes the gate shoe is prevented. The bands may be arranged on the gate shoe or on the device complementary thereto, or on both. In the construction shown, endless flexible steel bands c are stretched around flanged two-part rollers r, one of which is mounted on a frame d and the other on an auxiliary frame e. This frame is pivoted to the main frame d, and is under the action of a spring o. A third flanged roller b is mounted to rotate on the frame d about the axis of the frame e, and the endless bands c are strained against the roller b by the action of the spring o. Each of the main rollers r is concave, and the two parts thereof are pressed together by a spring n. The film (not shown) is fed by sprocket wheels or the like past a gate shoe a, which may contact with the non-emulsified surface of the film, the film being supported at its margins by the bands c as it passes the shoe. The shoe may be mounted to swing towards and away from the frame d, for the insertion of the film, or the frame may be adapted to swing, e.g. about the axis of the upper main roller. Alternatively, the gate shoe a or the frame d may be moved bodily together by spring pressure, and the third roller b and the auxiliary frame e may then be dispensed with. In a modification, the bearing surfaces of the gate shoe are replaced by rollers and endless bands, additional guide rollers being provided to cause the endless bands to present the necessary convexity. The aperture through which the light is projected to pass through the film may in this case consist of a gap between a pair of coaxial rollers.
Patent GB-774020-A (GB)
Title: Improvements in or relating to vehicle power steering systems
IPC: B62D5/12
Filed: 1954-12-24
Abstract: 774,020. Vehicle power steering. THOMPSON PRODUCTS, Inc. Dec. 24, 1954 [April 21, 1954], No. 37405/54. Class 79(5). [Also in Group XXIX] A hydraulic motor for vehicle power-steering systems comprises a piston 21 so supported on a screw shaft 13 that axial movement of the piston rotates the shaft. The shaft 13 either forms part of the steering shaft or is geared thereto. The piston is prevented from rotating by screws 17 which secure end caps 15, 16 to the power cylinder. In Fig. 4 (not shown) the cap screws 17 are outside the cylinder and the piston is prevented from rotating by guideways co-operating with grooves formed in a hub 47 of the piston.
Patent GB-1121475-A (GB)
Title: Improvements in or relating to polyepoxide compositions
IPC: C08G59/14
Filed: 1965-09-01
Abstract: A glycidyl-ether of a 4-hydroxy methyl-1,3-dioxolane is used as a reactive diluent in the hardening of a diglycidyl ether of bisphenol-A. Examples are 4-hydroxymethyl-2-methyl-2-ethyl-1,3-dioxolane and 4-hydroxymethyl-2,2-dimethyl - 1,3 - dioxolane. A further reactive diluent, e.g. 2-ethylhexyl glycidyl ether, may also be included.ALSO:The glycidyl ether of 4-hydroxymethyl-2-methyl - 2 - ethyl - 1,3 - dioxolane (I) is obtained by refluxing I with epichlorohydrin in petroleum ether followed by dehydrochlorination with NaOH.
Patent GB-346381-A (GB)
Title: Improvements in heating furnaces
IPC: F27B9/36
Filed: 1929-12-06
Abstract: 346,381. Metal-heating furnaces. ELLIS, R. E., 70, Chancery Lane, London. -(Rust Furnace Co. ; Koppers Building, 7th Avenue, Pittsburg, U.S.A.) Dec. 6, 1929, No. 37518. [Class 51 (ii).] Billets &c. to be heated are passed continuously through a heating-chamber 2 and a soaking-chamber 3, which are independently fired so that a temperature difference can be maintained between them. As shown the heating of the chamber 2 is effected by burners 27, 28 delivering respectively above and below the line of billets and supplied with hot air from conduits 31, 33. The burners 29 for the soaking-chamber are supplied with cold air, preferably under slight pressure, and the combustion conditions are such that a lower temperature is maintained in the soaking-chamber than in the high-temperature zone of the chamber 2. The whole of the products of combustion escape through ports 65 near the feed end 13, and pass through three recuperators, the inner of which supplies air to the conduits 33, while the two outer ones communicate with the two ends of the transverse flue 31. In a modification (Fig. 2, not shown) the chamber 16 beneath the billet track is extended to the soaking-chamber end of the restricted passage 4 between the two chambers.
Patent GB-834114-A (GB)
Title: Machine for spreading artificial fertilizers, gravel and the like
Inventor: SAVAGE WILLIAM LAWRENCE
IPC: A01C17/00
Filed: 1957-12-02
Abstract: 834,114. Fertilizer distributers. BLACKSTONE & CO. Ltd. Dec. 2, 1958 [Dec. 2, 1957], No. 37526/57. Class 6(1). A machine for spreading materials, such as artificial fertilizers, of the kind in which material is delivered from a hopper 1 on to a spinner plate 4 on which are pivoted radial arms is characterized in that the spinner plate 4 is provided with inner and outer sets of spinner arms 13, 15a, 15b spaced to provide a circumferential gap 16 between the outer and inner arms and a vertically disposed guard plate 17 depending into this gap. The guard plate 17 extends forwardly of the centre line of the machine to prevent the material from being sprayed on to the tractor. The plate 4 is driven by gearing 7, 8 from underwheels and an agitator 10 is mounted within the hopper.
Patent GB-619786-A (GB)
Title: Improvements in or relating to a dual purpose draw bar for vehicles
IPC: B60D1/14
Filed: 1946-12-20
Abstract: 619,786. Vehicle couplings. MARKHAM TRACTION, Ltd., and WATT, J. Dec. 20, 1946, No. 37560. [Classes 103 (v) and 108 (ii)] A dual purpose draw-bar for a vehicle com- . prises an arm 2 adapted to be pivotally mounted at 3 to the leading end of the vehicle 1 such that in one position, shown in dotted lines, it is secured by a clamp 17 against a bracket 6 to enable the end 19 of the arm to be coupled to a tractor (not shown) whilst in a second position, shown in full lines, it is secured by clamp 17 against a bracket 16 to enable the hooked other end 7 of the arm to engage, at a level different to the tractor connection, with a pin 11 on a wheeled support 9. The hooks 7 are clamped against the pin 11 by a pivoted trunnion and screw device 13, 14 of which the screw 14 engages an extension 15 of the forward plate 12 of arm 2.
Patent GB-1397572-A (GB)
Title: Method and apparatus for treating exhaust gases of internal combustion engines
IPC: B01D53/94
Filed: 1972-08-11
Abstract: 1397572 Purifying I C engine exhaust gases W R GRACE & CO 11 Aug 1972 [12 Aug 1971(2)] 37593/72 Heading F1B [Also in Division B1] I.C. engine exhaust gases are contacted with a metallic Pd catalyst and subsequently with a metallic Pt catalyst. The catalysts may be supported on monolithic or particulate supports, e.g. α-alumina, mullite, spinel zircon-mullite or cordierite and comprise 0À02 to 0À5 wt per cent of the weight of the catalyst and support. The support may be coated with gamma alumina impregnated with rare earth oxides, e.g. La 2 O 2 , Ce 2 O 3 , Nd 2 O 2 , Pr 2 O 3  and Sm 2 O 3 . A Pt nitrogen oxides reduction catalyst may be provided upstream of the Pd catalyst, air being introduced into the exhaust gases between these catalysts. Methods of preparing catalysts and specific catalysts are described in the Specification.
Patent GB-779502-A (GB)
Title: Improvements in and relating to the production of artificial filaments, fibres, threads and the like
Inventor: REEDER FRANK
IPC: D01F4/00
Filed: 1954-12-30
Abstract: A process for the production of regenerated protein fibres comprises extruding a solution of a protein and a polymeric compound having amide side chains into a setting medium, and treating the fibres so formed with formaldehyde.  The protein solution may suitably be casein in alkaline solution, and the polymer, which generally amounts to 2-25 per cent by weight of the protein, is preferably either polyacrylamide or polymethacrylamide.  The setting medium is desirably of the acid/salt type.  The resulting fibres may be stretched after extrusion and are then treated in a bath containing formaldehyde, which is believed to cross-link the protein to the polymer.  In addition to formaldehyde the bath may contain sulphuric acid and sodium and magnesium sulphates.  The fibres obtained may optionally thereafter be submitted to other known hardening or insolubilizing treatments, and are said to exhibit a reduced degree of water imbibition.  Specifications 614,506 and 701,645 are referred to.
Patent GB-1064798-A (GB)
Title: Method of refining steel in rotary reactor
IPC: F27D27/00
Filed: 1964-09-16
Abstract: <PICT:1064798/C6-C7/1> Molten iron is refined by causing it to flow in a helical path under supergravitational force while in contact with refining agents, a jet of gas being directed at the latter with sufficient force to cause mixing thereof with the metal.  The refining agents may be generally used fluxes such as CaO, CaF2, NaCO3, FeO, or Al2O3, while the gas stream may be hydrogen, nitrogen containing sodium, or argon containing sodium, or may be oxygen with or without fuel.  As illustrated in Fig.1., molten metal from tundish 36 and flux from feeder 30 flow into reactor 1 which rotates at a speed such that a supergravitational force of six to twenty times that of gravity is developed on the charge. The latter follows a helical path through the reactor before discharging into tower 40, from which metal discharges at 45 and slag at 42.  Mixing of flux and metal is effected by lances 46 and 52.  As illustrated, the metal then flows to a second reactor 11 for further refining.  Lance 60 may be pointed tangentially in the downstream direction to decrease the droplet size into which the metal discharges, or may be pointed upstream to increase the droplet size or even to effect discharge in a compact stream.  In the modification of Fig. 4 (not shown) the reactor lining is recessed at the points of impact of the gas streams to provide a deeper bath.  External cooling may be applied at these points.