baber/WOPTO huggingface dataset:
Patent GB-1331541-A (GB)
Title: Organic isocyanates
IPC: C07C263/18
Filed: 1971-05-13
Abstract: 1331541 Isocyanate recovery E I DU PONT DE NEMOURS & CO 13 May 1971 [22 May 1970 4 Jan 1971] 14759/71 Heading C2C An organic isocyanate is recovered from a crude isocyanate composition containing a substantially non-volatile residue component by mixing the composition with a tar thinning agent, the tar thinning agent being an organic liquid which dissolves the residue component and has a boiling point at least 50‹ C. above that of the organic isocyanate, said tar-thinning agent being at least one liquid selected from aromatic hydrocarbons have less than 35% wt. saturates, esters of aromatic acids having C 1-12  alcohol radicals, aromatic ketones having the carbonyl radical linked to two aryl radicals, aromatic ethers having the ether oxygen linked to two aryl radicals, and fully aromatic sulphides or sulphones, and subjecting the resulting mixture to distillation while maintaining the presence of a stripping agent for the organic isocyanate whereby the distillate contains a major proportion of the organic isocyanate and the still heel contains the residue component and the tar thinning agent; the weight ratio of tar thinning agent employed to the residue component being in the range 0À2 : 1 to 5 : 1. The stripping agent for the isocyanate is preferably o-dichlorobenzene.
Patent GB-1125861-A (GB)
Title: Improvements relating to racking
Inventor: ROBILLIARD LEONARD THOMAS
IPC: A47B57/40
Filed: 1965-04-07
Abstract: 1,125,861. Racks. DEXION Ltd. 24 March, 1966 [7 April, 1965], No. 14766/65. Headings A4B and A4H. A beam (2) is joined to an upright (1) by hooks 11 on the beam engaging in diamond shaped holes (5) in the upright and the joint is locked by a spring strip 12 which is pivoted to the beam by a screw or rivet 24 and has wings 25 extending through a hole 10 in the beam and adapted to enter one of the holes 5 in the upright. The hooks 11 are first entered into the holes 5 and the beam is then pressed downwardly so that the hooks engage the upright. Towards the end of the downward movement the wings 25 of the lock 12 snap into a hole 5 and thus prevent the beam from being raised to release the hooks. The beam is released by flexing the lock 12 and then rocking it slightly about its pivot 24 to cause a tag 30 on one of the wings 25 to rest on the surface 6 of the upright (1). The beam is then raised to disconnect the hooks 11 and the contact of the wings 25 with the edges of the hole 10 rocks the lock to its original position. The nose of the hook has sloping inner and outer faces (18, 20) and tapering flanks, (19).
Patent GB-419957-A (GB)
Title: Improvements in, and relating to, picks
IPC: B25G3/02
Filed: 1933-05-22
Abstract: 419,957. Pick handles. HARDYPICK, Ltd., Heeley, GAGG, W., 12, Broom Close, and GAGG, J. C., 76, Clubgarden Road, all in Sheffield. May 22, 1933, No. 14787. [Class 61 (i).] In picks of the kind wherein the blade is secured by a key in the socket of a separate head fitted to the end of the shaft which is secured to the head by a wedge driven into the shaft end so as to expand the latter in a direction transverse to its major axis the shaft receiving socket of the head b is separated from the blade socket f by a wall e which acts upon the wedge c when the shaft a with its wedge c is forced into the socket and forces the wedge to expand the shaft end in its socket, the expansive action of the wedge also having the effect of closing the extension wings d of the head tightly on the shaft.
Patent GB-1212633-A (GB)
Title: Improvements relating to the irradiation of fluids
IPC: B01J19/20
Filed: 1969-03-20
Abstract: 1,212,633. Irradiating fluids. EREX HYDRO ENG. (PTY.) Ltd., and H. KELLER. 20 March, 1969 [3 April, 1968], No. 14832/69. Heading H5R. Turbulent flow in a fluid-e.g. air or waterirradiated by sources 3 during passage from inlet 14 to outlet 15 through pipes 5 and 5<SP>1</SP> is produced by deflecting baffles (2, Fig. 1, not shown) projecting either from a plurality of annular members 16, or from a helix (Fig. 2a, not shown), mounted in the pipes. As shown, the irradiating source in each tube is an ultra. violet lamp contained within a quartz tube 19, and provided with a conductive lead 13, 25, 10 at its upper end, and lead 9-against which it is urged by spring 26-at its lower end.
Patent GB-540355-A (GB)
Title: Improvements in electric lamp sockets
IPC: H01R33/08
Filed: 1940-10-03
Abstract: 540,355. Lamp-holders. BRITISH THOMSONHOUSTON CO., Ltd. Oct. 3, 1940, No. 14845. Convention date, Oct. 3, 1939. [Class 38 (i)] A tubular lamp 10 having at each end two contact prongs 11 that are retained by blades 19 in a holder 12 is released from the holder by a manually operated member 26 that presses the blades 19 apart until the hooked portions 20 are clear of the prongs 11. In order to lift the lamp to a more accessible position for removal after release, a spring 29 presses on the underside of the lamp cap. The contact blades 19 are attached to terminals 22 held in place in cavities by an insulating plate 30 to which the spring 29 is riveted. A partition 34 isolates the terminal screw 24 in a recess 33 that opens through the mounting plate 36. Specification 536,336 is referred to.
Patent GB-663483-A (GB)
Title: Method and arrangement for separating dust from a medium
IPC: B24C9/00
Filed: 1949-06-02
Abstract: 663,483. Pneumatic separators. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN, and AKTIEBOLAGET BOFORS. June 2, 1949 [June 9, 1948], No. 14849/49. Class 117 In cleansing and separating used blasting medium such as steel, sand and the like from dirt and dust, wherein the dirty medium is fed continuously in an air stream into a vertical passage 29 against an opposing air stream, the vertical passage has an adjustable wall part 37 to vary the area of the passage and thus adjust the force of the opposing air stream to ensure that the dirt and dust is carried away by the opposing air stream whilst the cleansed medium falls freely through the latter to be collected and recirculated for the blasting process, the dirt-laden air being purified in a dust separator and partly used for maintaining an air curtain in front of the operator 2 in the blasting cabinet 1 and partly used for evacuation of dust in the cabinet. As shown the dirty sand is introduced through a downwardly inclined shoot 27 into a vertical tube 29 having an upward air current flowing therethrough, the dust being carried away with the air through the top end 31 of the tube 29 and the cleansed sand being collected in a closed chamber 32 which surrounds the lower end 30 of the tube 29 and to which the upward air current is supplied by a fan 36. The adjustable wall 37 has a slotted flange 38 secured by bolts to a fixed part 40 of the chamber 32. The bottom of the chamber 32 is closed by a spring or pressure air loaded member 35 arranged to open under a particular weight of clean sand to allow the sand to fall into a reservoir 56 for recycling in the blasting apparatus. The dust-laden air leaving the end 31 of the pipe 29 passes to hose filters 44 through which it is sucked by a fan 45, and the clean air is then forced through pipes 47, 51 and 54 to provide the protective air curtain and dust exhaust in the blasting chamber 1. A sensitive pressure-regulator 50 operating a valve 48 is provided in the pipe line 47 to ensure that the fan 45 exhausts more air than is blown in by fan 36, the additional air being taken in through the shoot 27 with the dirty medium.
Patent GB-1302737-A (GB)
IPC: C07C5/333
Filed: 1970-03-26
Abstract: 1302737 Dehydrogenating paraffins INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 26 March 1970 [4 April 1969] 14907/70 Heading C5E [Also in Division B1] Mono-olefins are prepared by dehydrogenating saturated hydrocarbons in the presence of a catalyst which comprises alumina having a surface area of from 1 to 100 m.<SP>2</SP>/g., platinum in an amount of from 0À05 to 0À7 weight per cent of the alumina, ruthenium and/or iridiurn in a total amount of from 0À05 to 0À3 times the weight of the platinum, and alkali metal/alkaline earth metal in an amount (expressed as metal) of from 0À3 to 10 times the total weight of the platinum and ruthenium and/or iridium. The catalyst may contain both ruthenium and iridium, for example in a relative weight ratio of between 0À1 to 1 and 10 to 1. The alkali metal/alkaline earth metal may be present in the catalyst in oxide/hydroxide form. Examples relate to the hydrogenation at 445-480 C. of a C 10 -C 14  normal paraffin cut in the presence of H 2 .
Patent GB-489132-A (GB)
Title: Improvements in or relating to portable polishing and like machines
IPC: B24B55/10
Filed: 1937-05-31
Abstract: 489,132. Polishing floors &c. ; confining dust on generation. PAINE, H. SCOTT-. May 31, 1937, No. 15085. [Class 60] [Also in Group XXVIII] A portable polishing machine for treating floors, decks, &c. comprises a Hexible polishing disc 14 carried by the lower end of the spindle, 13 of an electric motor 10. to which is secured a metal frame 15 having axially spaced flanges 17. Slidable in the flanges are a number of pins 18 pressed by springs 19 and carrying on their projecting ends a ring 21 to which is sewn a strip 22 of thick felt extending below the surface of the disc 14; a canvas cover 23 sewn inside the felt extends upwardly and is secured inside the frame 15 by a ring 24. In operation, the felt ring rests on the work, and dust generated is thereby confined to the chamber surrounding the disc ; it is extracted to a suction device through a pipe 25 extending some distance circumferentiaily around the frame 15 as volute chamber. A fan 27 may be provided on the spindle 13.
Patent GB-253916-A (GB)
IPC: G01N21/53
Filed: 1926-06-16
Abstract: 253,916. British Thomson-Houston Co., Ltd., (Assignees of Whitney, W. R.). June 19, 1925, [Convention date]. Pulp, regulating flow and consistency of.- Apparatus is described in connection with the pulp supply devices for paper-making for automatically maintaining the density of the pulp supply constant, by means of photo-electric apparatus. In place of a single photo-electric cell. for the determination of light intensities, two cells are utilized having a common source of energy to supply to potential across the cells, in conjunction with a single source of light. One cell 10 receives light through a known filter 16 and the other cell 11 receives light through a filter 6 containing the substance to be tested. The cells are so connected that the currents produced in them are opposed and indicated on a galvanometer 13. The pump from the tank 1 and water from the pipe 2 are pumped' by the pump 5 past the transparent window 6 to the papermaking machine, and electric control means are provided actuated through a relay from the galvanometer 13 to control the valve 7 governing the supply of water to the tank 1 so that the density of the pulp supply is substantially constant. Variation of the pulp density causes the current produced to move the galvanometer needle and close a circuit through the relay 18 or 19 energizing one of the coils 20, 21 and thus actuating one of the switches 22, 23 to start the motor 25 to open or close the valve 7. The winding connected across the armature of the motor 25 controls the operation of switch 27 which governs a dynamic breaking resistor 28 to stop the motor 25 promptly. In a modification resistances are inserted on the operation of the relay apparatus in the armature circuit of the motor 25 to vary the speed.
Patent GB-660721-A (GB)
Title: Improvements in or relating to methods of and means for starching clothes
IPC: D06F91/00
Filed: 1949-06-07
Abstract: 660,721. Starching clothes. JACOBSEN, 1. V. June 7,1949 [June 4, 1948], No. 15176/49. Class 138 (ii). A method of starching clothes such as collars, cuffs and shirts comprises placing the articles in a starch bath 1, and then in a pressure chamber 15 into which compressed air or gas is introduced at a pressure of at least 30 lbs. per sq. inch above atmospheric. A relief cock 17 in a sealed cover 16 allows a circulation of air in the chamber 15 and this improves the penetration of the starch and prevents clustering together of the clothes. The starch bath 1 preferably comprises an open container through which air or gas is bubbled under reduced pressure. The container 1 may be divided by partitions into four segments containing starch solutions of different strengths to produce different degrees of stiffness in the clothes. The clothes are supported in spaced relation by racks fitting into the four sections which are supplied with air by pipes 7, 8, 9 connected to a pressure supply duct 10. The pipe 9 contains a non-return valve 11 and a stop cock 12. After about one minute in the container 1, the clothes are transferred to the pressure chamber 15 for about five minutes. The supply duct 10 includes a stop cock 13, air filter 14, cut-off valve 18, a pressure reducing valve 20 and manometer 19, a non-return valve 21 and relief valve 22.
Patent GB-168665-A (GB)
Title: Improvements in or relating to hand-shears
IPC: A01G3/02
Filed: 1920-06-04
Abstract: 168,665. Williams, W. F. June 4, 1920. Hand shears having stops to limit the distance which one blade can cross the other. One of the stops is formed of a eushioning-piece D<1> mounted in a socket D integral with one blade, and the other stop is formed as an ear-piece E integral with the other blade and bent at right-angles to the plane thereof.
Patent GB-1391853-A (GB)
Title: Apparatus for cutting of steel cord-reinforced webs for tyres
IPC: B26D5/00
Filed: 1972-03-30
Abstract: 1391853 Shearing VELUWSE MACHINE INDUSTRIE BV 30 March 1972 [14 Sept 1971] 15241/72 Heading B3W A rubber web 6 reinforced by metal wires extending longitudinally of the web is fed to a shear 12 pivotable at 14 to vary the bias angle of cutting via rollers 19 by suction cups 8 spaced across the web in a support 9 pivotable to lie parallel with the shear. The suction cup device 8, 9 is reciprocable between adjustable stops 10. Further suction cups 13 hold the web from below during cutting. Cut strips are removed from the shear 12 by a conveyer 15, joined end to end manually and fed to a winder 18. The part of the conveyer which is nearest the shear is pivotally mounted for downward movement during a shearing stroke. A photocell 17 on detecting the passage of a cut strip actuates the suction cup device 8, 9 and can override a pedal control of winder 18 to prevent the latter operating unless a strip is lying on the conveyer 15.
Patent GB-152420-A (GB)
Abstract: 152,420. Roberts, J. C. July 14, 1919. Acetic acid, methyl alcohol, acetone.-In order to recover the acetic acid, methyl alcohol, and acetone formed by the destructive distillation of wood in suction-gas plants, the wash-water from the suction-gas scrubbers is passed over chalk or barium carbonate until a sufficient concentration of acetate is obtained, and at the same time the methyl alcohol and acetone are withdrawn by means of vacuum. The wash-water contained in the tank A is pumped into the vessel 13, provided with a heating-jacket, where it passes through lumps of calcium or barium carbonate, and overflows through the pipe b<1> into the vessel D, which also contain calcium or barium carbonate, and is fitted with a cooling-jacket. The methyl alcohol and acetone are drawn off from the heated wash water in the vessel B by means of the pump b into the condensing coil C. The liquid issuing from the vessel D is pumped into the tank E, from which it can be run back to the scrubbers of the suction-gas plant. The process is repeated until the content of calcium or barium acetate is sufficient for recovery by evaporation.
Patent GB-217761-A (GB)
Title: Improvements relating to type used in the manufacture of showcards and the like
IPC: B41L29/04
Filed: 1923-06-11
Abstract: 217,761. X.L. Showcard Machine Co., Ltd., and Kindell, A. O. W. June 11, 1923. Types and spaces; holders for loose types.- Types 1 for cutting out characters from a paper or other sheet and impressing them into cardboard to form show cards &c., are provided on their backs with dovetail or other grooves 4, Fig. 3, to receive a metal or other strip 5, Fig. 7, of corresponding shape to hold the types against accidental displacement during the cutting and impressing operation. Two or more lines of type may be held in parallelism by providing the table 6 on which the cardboard and superposed paper &c. sheet is placed, with side guides 7 in which are mounted slides 8 to which the ends of the strips 5 are secured. The slides are fixed in adjusted position by set screws 9 bearing against the bottom of the guides. Spaces may be formed similarly to the types.
Patent GB-904466-A (GB)
Title: Improvements in or relating to clips for use with bird cages
Inventor: GLEDHILL NORMAN RAMSDEN
IPC: A01K39/01
Filed: 1959-05-06
Abstract: 904,466. Clip fastenings. THOMAS'S Ltd. May 6, 1960 [May 6, 1959], No. 15461/59. Class 44. A clip for holding an object within a birdcage comprises a pair of jaws 20 serrated and overlapping at 24, having finger-grips 26, and pivoting on each other at 30 when they pass through a slot in a spring steel carrier member 10. The carrier member is formed at 16 into spring arms which close the jaws, and have small terminal tongues 18 entering slots in the jaws to locate them. Two tongues 32 pressed out of the carrier member engage the wires of the birdcage as shown. Specification 491,177 is referred to.
Patent GB-900382-A (GB)
Title: Improvements relating to the production of non-woven fabrics
IPC: D04H1/645
Filed: 1961-04-28
Abstract: 900,382. Agglutinated fibrous materials. FREUDENBERG, R., FABBICIUS, H., FREUDENBERG, H. E., KRAFT, K., SCHILDAUER, O., WENTZLER, P., FREUDENBERG, H., and FREUDENBERG, D. April 28, 1961 [April 28, 1960], No. 15503/61. Class 140. A process for producing a non-woven fabric comprises impregnating a loose fibre fleece with a water-soluble binding agent which contains hydroxyl and carboxyl groups and then causing at least some of the hydroxyl groups to react with a water-soluble synthetic resin pre-condensate and causing the carboxyl groups to form a water-insoluble salt upon reaction with a metal salt, whereby the binding agents is rendered insoluble. Suitable binding agents are alkali metal and ammonium salts of alginic acids, carboxymethylcelluloses and carboxyethylcelluloses. Suitable synthetic resin pre-condensates are tetramethylolacetylenediurea, dimethyloldihydroxyethyleneurea and dimethylolethyleneurea. A suitable metal salt is aluminium formate. Impregnation may be effected by forming a solution of the binding agent into a foam and impregnating the fleece therewith, or by passing the fleece, sandwiched between two wire screens through a bath containing an aqueous solution of the binding agent. The fleece is then treated with an aqueous solution containing the synthetic resin pre-condensate and metal salt and finally heated to a temperature between 120 and 160 C. to cause reaction to take place. Alternatively, the synthetic resin pre-condensate may be added to the solution of binding agent together with an acid catalyst or compound yielding such catalyst when heated. After impregnation the fleece is heated to complete the reaction between the resin pre-condensate and the hydroxyl groups of the binding agent. The fleece is then impregnated with the solution of metal salt.
Patent GB-1185051-A (GB)
Title: Photoelectric Exposure Measuring Devices
Inventor: REIMANN HUBERTUS
IPC: G01J1/42
Filed: 1967-04-05
Abstract: 1,185,051. Exposure meters and exposure control devices. PENTACON DRESDEN KAMERAUND KINOWERKE VEB. April 5, 1967, No.15552/67. Heading G2A. A photo-electric light measuring device has at least one resistance attenuation element including first and second terminals and a sliding contact connected to an exposure setting or selecting member of a camera or a meter, a light-sensitive element subject to prevailing light conditions in circuit with the first and second terminals, and indicating means influenced by the light-sensitive element and the position of the sliding contact, such that correct exposure is achieved by adjustment of the setting or selecting member until a required indication dials. A voltage source 1 supplies a bridge circuit the balance of which is indicated by a glavanometer 2. The bridge includes a photo-conductive cell 3, a resistance 4, and a resistance 5 equal in value to the internal resistance of an attenuation element 6 serving as a logarithmic voltage divider. The bridge is balanced by adjustment of the element 6. In another embodiment Fig.2 (not shown) attentuation elements (6, 7 and 8) are provided in respect of exposure time, film sensitivity and diaphragm aperture controls. A switch (9, Fig. 3, not shown), is automatically opened upon attachment of an objective (not shown) to a camera to render attentuation element (8) built into pre-selector diaphragm effective. A lamp (14, Fig. 5, not shown) may replace the galvanometer 2, Fig. 1 to indicate the correct or incorrect setting of the exposure factor combination. The lamp (14) is connected to the attenuation elements (6, 7 and 8) through a trigger circuit (13).
Patent GB-1443264-A (GB)
Title: Valve arrangements
IPC: G05B19/44
Filed: 1974-04-08
Abstract: 1443264 Fluidic switching circuits LEESONA CORP 8 April 1974 [9 April 1973] 15557/74 Heading F1P In the circuit shown, rams 30, 31 are controlled by bi-stable devices 10-14 and the device 10 is caused to changeover by a pulse 8 or 9, produced by pivoting one of members 18, 19 about pivots 22, to vent the appropriate line to atmosphere. In the position shown, air under pressure from a source 15 is supplied to the rams 30, 31 through line 44, device 12, and lines 47, 48. If member 18 is pivoted to produce pulse 8 a pressure drop in chamber 23 of device 10 causes a diaphragm 25 to changeover and this changeover is followed by devices 11-14. The rams are now exhausted. Ram 30 is exhausted through line 48, deivce 11 and vent 51, whilst ram 31 is exhausted through line 58, device 14 and vent 61. If the member 19 is pivoted a pulse 9 causes all the devices 10-14 to changeover again. Reversal may be made automatic by connecting the ram 30 to members 18, 19 as shown at 21.
Patent GB-460409-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: B64C33/02
Filed: 1936-06-03
Abstract: Electrodes of cathode-ray tubes for television or recording oscillations are made of a steel alloy of austenitic structure, the non-rusting Krupp steels V2A and V4A being specified.
Patent GB-955968-A (GB)
Title: Improvements in or relating to drying apparatus and methods for use with paper making machines or the like
IPC: D21F5/02
Filed: 1960-05-08
Abstract: 955, 968. Drying paper &c. BELOIT IRON WORKS. May 3, 1960 [Aug.28, 1959], No. 15591/60. Addition to 911, 314. Heading D2A. [Also in Division F4] In apparatus for drying a web of paper, textile or plastic material, air from a chamber or plenum is directed, against the web, through substantially cylindrical holes 31 in a plate 30, Fig. 4, forming a wall of the said chamber, and each hole has a larger opening, with a rounded lip 32, on the side of the plate facing into the chamber than on the side facing the web. According to Fig. 2, the web W travels around a drying cylinder 11c and heated or cooled air is directed through holes 31 in the walls 30 of chambers 26a, b, c and d, arranged in a hood 18. The holes may be arranged equidistant from each other, in parallel lines inclined to the axis of the cylinder 11c. After having passed over the latter, the web may pass around a sweat cylinder 11d, Fig. 1 (not shown) cooled by water, so that condensate from the surrounding moist atmosphere is picked up by the web, thus ensuring that it is not over-dried.