baber/WOPTO huggingface dataset:
Patent GB-833664-A (GB)
Title: Improvements in the reaction of gaseous and vaporous substances
IPC: B01J19/00
Filed: 1956-06-14
Abstract: Chemical reactions involving gases or vapours under pressure under exothermic conditions are effected by diluting the reactant gas or vapour with a non-decomposable gas (e.g. an inert gas), introducing the mixture into a liquid medium at a temperature below the reacting temperature, and in a concentration below the ignition limit, and then passing the solution to a reactor at a high pressure, sufficient to prevent the escape of gases or vapours.  Details are given of the limiting concentrations for safe operation.  The diluent gas may be carbon monoxide or dioxide, steam, nitrogen, or hydrogen, and may also take part in the reaction, e.g. CO dissolved in the liquid phase may react with acetylene.  As reactant gases acetylene and its homologues, ethylene, propylene, and chlorine dioxide are referred to.  A liquid medium containing some reaction product flows from the bottom of a high-pressure reactor A through a cooler O where temperature is reduced from the reaction temperature t1 to the lower absorber temperature t2, and in the absorber B, diluted reactant gas is admitted through a compressor pump W from which it passes to a vessel H receiving small amounts of unreacted gas mixture from the collecting chamber D.  The gases are measured for content of reactant gas by an instrument K before absorption. Any unabsorbed gas passes from the separator C to chamber D and is recycled.  The liquid absorbate flows from the separator C through preheater N to the reaction chamber A.  In examples, acrylic acid is made by reacting acetylene, carbon monoxide and water, and the esters by using an alcohol to replace water; methyl vinyl ether from methanol and acetylene using nitrogen as diluent gas; cyclo-octatetraene from tetrahydrofurane and acetylene with nitrogen.
Patent GB-220616-A (GB)
Title: Improvements in and relating to toy shooting appliances
IPC: F41B7/00
Filed: 1924-08-01
Abstract: 220,616. Davidson, E. Aug. 17, 1923, [Convention date]. Toy guns &c.-A toy spring gun, pistol, or cannon has the barrel pivoted at its forward end to the stock or support so that it may be swung to one side for the insertion of a projectile into the breech. The projectile is arranged to leave a mark upon the target, which is constructed in such a manner that it can be cleaned or renewed. Projectors.-The stock comprises two members 2, Figs. 1 and 4, spaced apart to form a slot 1, in which a member 18 slides. The barrel 6 which has a slot 7 in its underside, is connected at its front end by a pivot pin 12 with a fork 13 secured to the stock. The barrel can be swung sideways about the pivot 12, the extent of the movement being limited by a hooked member 11 which moves through a slot in a plate 40 and is secured to the end of the barrel. The spring 17 is secured at one end within a housing 16 which is attached to the stock in line with the barrel. A plunger 25, attached to the front end of the spring, has a pin 26 which projects through the slot 7 and is engaged by a spring 23 secured to the member 18. Thus when the member 18 is moved to the position shown in dotted lines, the spring 17 is compressed within the housing and the member 18 is retained in this position by engagement with a shoulder 28 formed on the stock. The barrel can now be moved sidewavs for the insertion of the projectile, which is held in position by a spring tongue 39 formed inside the barrel. Pressure on the trigger depresses the spring 23 and releases the pin 26. Projectiles.-The projectile consists of a tube 34, Fig. 5, of cardboard, wood, or light metal closed at the rear by a plug 35 of wood, and at the front by a rubber sheath 36 enclosing a plug 37 of felt which is impregnated with a coloured fluid. The sheath extends beyond the felt so that the latter can only make a mark when the sheath is driven backward on itself by impact with the target. Targets.-The target may consist of smooth material which does not absorb the coloured fluid, so that it may be washed to remove the marks. Alternatively, it may consist of superposed sheets, like a memorandum block, which can be removed one at a time when used.
Patent GB-1408678-A (GB)
Title: Spray-dried detergent composition
IPC: C11D3/10
Filed: 1973-04-17
Abstract: 1408678 Spray-dried detergent composition PROCTER & GAMBLE CO 17 April 1973 [17 April 1972] 18466/73 Heading C5D Crisp, free-flowing heavy-duty detergent granules are produced by forming an aqueous slurry containing (A) 10% to 20% wt. of a water-soluble organic detergent selected from anionic, nonionic, zwitterionic and ampholytic detergents, (B) 15 to 35% wt. of sodium carbonate and (C) 0À7% to 15% wt. of a watersoluble anti-caking agent which is sodium acetate, sodium citrate or potassium carbonate, and spray-drying the slurry. The slurry may contain 2-17% wt. of an alkali metal silicate having an SiO 2  : Na 2 O ratio of 3À6 : 1 to 2 : 1. Sodium sulphate and sodium toluene sulphonate may also be present.
Patent GB-457644-A (GB)
Title: Improvements in high pressure metal vapour electric discharge devices
IPC: H01J61/82
Filed: 1936-07-03
Abstract: 457,644. Discharge lamps. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, and GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, both in London.-(Assignees of Germer, E. ; 42, Ulricistrasse, Wannsee, Berlin) July 3, 1936, No. 18520. Convention date, July 3, 1935. [Class 39 (i)] The invention relates to high pressure metal vapour electric discharge devices in which the electrodes are of solid thermionically emitting material, and in particular to lamps operated with the line joining the electrodes horizontal. In order to avoid contact of the discharge with the tubular envelope 1 of the lamp, the line joining the electrodes 2, 3 is displaced so far below the axis of the lamp that the discharge column 4 which is bowed upwards is everywhere at a substantial distance from the envelope. The main electrodes may be surrounded by shields also displaced from the axis of the envelope and devices to facilitate starting may be provided. The lamp fitting may be such that the lamp can be inserted only in the correct position. Specification 11140/11, [Class 39 (i)], is referred to.
Patent GB-392375-A (GB)
Title: Improvements relating to liquid dispensing apparatus
IPC: B67D7/04
Filed: 1932-06-30
Abstract: 392,375. Rotary pumps. GILBERT & BARKER MANUFACTURING CO., Cold Springs Avenue, West Springfield, Massachusetts, U.S.A. June 30, 1932, No. 18561. Convention date, Nov. 14, 1931. [Class 110 (ii).] In apparatus for dispensing petrol &c. of the type in which a rotary or other pump 7, driven by an electric motor 26, meter 20, sight glass 51 and hose 16 controlled by a valve 17, a byepass controlled by a check valve being arranged between the discharge and suction sides of the pump, an air vessel 42 is connected to the suction pipe. Preferably the air vessel is arranged at approximately the height of the sight glass 51, in order to maintain the latter full. The air vessel communicates by a pipe 41 of small bore with a chamber 33, into which the suction pipe 6 opens. Liquid passes to the pump inlet 36 through a filter 34 and is discharged through a port 37 and pipe 15. A spring-pressed valve 38 forms a byepass between the discharge and suction passages. The pipe 41 is connected to a nipple having a passage opening above the bottom of the air vessel and surrounded by a deflecting hood. Specification 274,806, [Class 102 (i), Pumps &c.], is referred to.
Patent GB-624933-A (GB)
Title: Improvements in or relating to welt hold-down devices for use in shoe bottom pressing machines
IPC: A43D25/08
Filed: 1947-07-12
Abstract: 624,933. Shoe bottom pressing machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. July 12, 1947, No. 18603. Convention date, July 15, 1946. [Class 17 (i)] A welt hold-down device for a shoe bottom press such as in Specification 403,953 consists of a series of concavoconvex, cylindrically curved plates so mounted that they tend to lie upwards and outwards from the welt, and pressure plate means are provided to urge the device into the crease between the welt and the upper. Plates 24, 26 are pivotally mounted on a pad box 10 at 20, 22, Fig. 2, with springs 32, 34 tending to swing them about a locking bolt 30 to urge gauge arms 40 thereon inwards towards the shoe 16. The arms 40 are pivoted at 36 to extensions 37 of uprights integral with the plates 24, 26, to permit vertical movement over the pad 12 and soie gauges 48 are pivoted at 46 to extensions 42 on the arms 40, pivotal movement being restricted by pins 47. A pressure plate 50, Fig. 5, with a shank 52 is carried in a guideway 54 of each sole gauge 48. Springs 56 acting against pins 58 urge the plates 50 against the hold-down 66. A stop screw 62, held against accidental turning by a spring clip 64, allows adjustment of this pressure. The flexible hold-down 66 has a number of concavo-convex plates 68 strung on flexible cables 70, 72 passing through holes 80, 82, and compression springs 74 acting between the end plates and the flanged heads 76 keep the plates in nesting relations. The holes 80, 82, are large enough to permit some relative sliding between the plates. A close-wound wire spring 84 extends through most of the plates terminating short of the ends and has a tendency to straighten causing the hold-down 66 to tend to open out and to allow easy insertion of a shoe. Pivot pins 90 attach blocks 92, which are free to slide and turn on rods 94, to side lugs of the hold-down 66. The rods 94 are pivoted at 96 to swivel blocks 98 depending stems of which are rotatable in uprights 37 permitting vertical and horizontal movement. Torsion springs 110 tend to elevate the rods 94. Springs 112 connect the blocks 92 to flanges 114 which tend to twist the blocks outward and so to lift and turn outwards the edges of the hold-down to allow easy insertion of a shoe. A pressure device for pressing down the welt hold-down comprises a U-shaped block which engages the edge of the hold-down and is operated by a hand lever through a cam system which gives a rapid initial movement followed by a slower movement with increasing mechanical advantage. In operation the outsole is positioned on the pad 12 between the gauges 48 which are then locked by the bolt 30. The shoe is then inserted in the hold-down 66 and is pushed toward and downward against the springs 112 to position the shoe on the sole 14 the presser plates 50 yielding against the springs 56 as necessary. A pressure pad then applies pressure to the shoe and the operator then operates the welt holddown pressure lever.
Patent GB-953149-A (GB)
Title: Bulked multifilament yarn and pile carpet produced therefrom
IPC: D02G1/16
Filed: 1962-05-15
Abstract: In a process for obtaining bulked yarn, single or plied twisted or untwisted yarn of continuous polypropylene filaments having (a) gamma orientation (b) an orientation angle of 10-60 degrees (c) a potential shrinkage of 0-20% and (d) a potential helical crimp of 2-20 crimps per inch, is fed to a plasticizing stream of a gas or vapour (to which an auxiliary plasticizing agent such as water or acetone may be added) which is at a temperature e.g. 100-200 DEG C., above the second order transition temperature of the polypropylene.  The individual filaments, while in a plastic state and under minimum tension, are separated from each other and crimped individually as they are agitated in the stream.  The crimp is set, as by cooling, freezing of quenching in a gas or liquid, in the course of which the filaments may be deposited on to a foraminous surface.  The properties (a), (b), (c), (d) are defined, and known methods of measurement thereof are described or identified, in the Specification and relate to or denote respectively, an unusual orientation or condition of material in a filament which is detected in the X-ray diffraction pattern, the alignment of molecular axes of the material of the filament with respect to the filament axis, and the amounts an uncrimped filament shrinks and crimps when placed in unrestrained condition in boiling water for two minutes.  The filaments of the bulked yarn have permanent, non-helical crimps with alternate "S" and "Z" twist throughout their length, a random number of twist reversals per inch, and at least one "S" turn and at least one "Z" turn per inch with each turn having a twist angle averaging at least 5 degrees, and are free from crunodal loops. The filaments may be passed through conventional fluid e.g. steam, jets modified by the addition of a heating tube (of about thirty inches length) attached to the yarn entrance to catch the backlash of steam for preheating the yarn.  Testing fibres.  "The recovery from compression characteristic" of the crimped filaments is measured by cutting the filaments into 2-3 inch length fibres, carding the fibres and forming them into a ball which is then compressed into a plug in a cylinder by a loaded piston for one minute, then permitted to recover and the recovery gauged by comparison of the initial and final heights of the plug.  Specifications 732,929, 807,248, 892,587, 905,895, 917,181 and U.S.A. Specification 2,852,906 are referred to.
Patent GB-448660-A (GB)
Title: Improvements in method of manufacturing suction rolls and assembly for use therein
IPC: B29C43/10
Filed: 1935-06-28
Abstract: 448,660. Hollow rollers. KELTIE, G. R., 91, Social Street, Woonsocket, Rhode Island, U.S.A. June 28, 1935, No. 18623. [Class 34 (i)] [See also Groups V and VIII] A method of applying a rubber covering to suction roll shells 14 provided with radial openings 20 and with peripheral recesses or grooves 16 comprises inserting key forming pieces 19 of rubber in the recesses or grooves, applying a covering 12 of unvulcanized rubber to the outer surfaces of the shell and key forming pieces, winding a strip of vulcanizing tape 26 over the covering, driving pins 30 outwardly through the radial openings of the shell to form aligned openings in the key forming pieces, rubber covering and tape, vulcanizing the rubber and then removing the pins. As shown the grooves 16 may be dovetailed. The rubber covering may comprise an inner layer of harder rubber and an outer layer of softer rubber. Specification 412,130, [Group V], is referred to.
Patent GB-946866-A (GB)
Title: Improvements in or relating to electrical indicating instruments
Inventor: FELDMESSER KURT
IPC: G09F9/46
Filed: 1960-05-26
Abstract: 946,866. Indicating-apparatus; electric measuring-instruments. MARCONI INSTRUMENTS Ltd. Feb. 21,1961 [May 26, 1960],No. 18646/60. Headings G1J and G1Q. [Also in Division G4] An electrical indicating instrument comprises a mechanically balanced scale 6 rotated by a moving spindle 3 of the instrument and a light source 7, optical system 8, 9 and screen 10 so mounted in relation to the scale that in each possible position of the scale 6, an enlarged image of a relatively small portion thereof is projected on the screen, the scale having teeth 12 adapted to be engaged by a movable detent 13 whereby it may be locked in any position to which it has been moved. The detent may be actuated by an electromagnet 14. The indicia, which are transparent or translucent in an otherwise opaque member, may be formed photographically or may be stencil-like openings.
Patent GB-630336-A (GB)
Title: Sheet feeding mechanism
IPC: B65H7/12
Filed: 1947-07-14
Abstract: 630,336. Sheet-feeding apparatus. ADDRESSOGRAPH - MULTIGRAPH CORPORATION. July 14, 1947, No. 18677. Convention date, Feb. 8, 1941. [Classes 100 (i) and 100 (ii)] A sheet - feeding device is constructed with a detector for detecting the passage of multiple sheets as they pass over a feed roller 111, Figs. 2 and 5, a switch controlled by the detector, and means for adjusting the relation of the detector to the sheet without changing the adjustment between the detector and the switch. The invention is described in connection with sheet feeding and separating mechanism as described in Specification 630,363 which is divided from the present application, and which forwards sheets from a pile W, Fig. 2, to forwarding rolls 111, 112 from which the sheets pass to a rotary offset printing - machine. As the sheets pass through the forwarding rolls 111, 112 they are acted up by a gauge or detecting device comprising a roller 180, Fig. 5, mounted in a lever 182 pivoted in an adjustablymounted bracket supported by rods 176, 177. A roller 186 carried by the lever 182 is arranged between an adjustable screw 188 and a pin 187 of a sensitive electric switch in the circuit of an electromagnet 184. The switch is set with one sheet between the rollers 180 and 111 so as to be just open. If, however, two or more sheets are fed between the rollers 111, 112, the electric magnet is energized and a deflector plate 223 is operated to divert the sheets and prevent them from passing to feed rolls 220, Fig. 2, which together with feed tapes 240 and rollers 221 and other forwarding devices advance the sheets to a rotary offset press. The Specification as open to inspection under Sect. 91 also comprises means for advancing the pile W intermittently. Pile-advancing means.-The pile W is supported by a table 45, Fig. 2 (Cancelled), attached to chains 50 fitted with a counterweight and passing over sprockets on a shaft 56. To raise the pile a hand-crank 60 can operate the shaft 56 by means of bevel and worm gearing. The movement of the crank 60 to clutch it to a drive gear 62 operates a lever 40 which moves a pawl 99 out of contact with a ratchet-wheel 97 by means of which the pile is raised under control of means acting on the pile. This control comprises a latch 91, which at the end of its return movement can hold a pawl-carrying frame and so prevent actuation of the shaft 56. If, however, the pile is low, the latch 91 is tripped by a pin 90 on a reciprocating link 76 having a yieldable connection with an oscillating lever 74 actuated by a crank 71 driven by the impression cylinder of the offset press. The link 76 is controlled by an oscillating bail, which is moved into contact with the pile at each rotation of the press. This subject-matter does not appear in the Specification as accepted.
Patent GB-904424-A (GB)
Title: Improvements in or relating to the manufacture of mould growth inhibiting wrapping materials
Inventor: FOX BERNARD VICTOR
IPC: C08J7/052
Filed: 1960-05-26
Abstract: 904,424. Coated regenerated cellulose film. BRITISH CELLOPHANE Ltd. May 8, 1961 [May 26, 1960], No. 18687/60. Class 140. A mould-growth inhibiting wrapping material comprises a regenerated cellulose film incorporating a water-soluble salt of sorbic acid, coated on one surface only with a coating of a moisture-proofing and/or heat-sealable coating composition. The amount of the salt of sorbic acid incorporated in the film may be less than the amount at which the salt crystallizes out of the film. The salt may be sodium, ammonium or potassium sorbate and may be present in amount not exceeding 22 parts by weight based upon 100 parts by weight of the film. The coating composition may contain a vinylidene chloride copolymer, e.g. vinylidene chlorideacrylonitrile, vinylidene chloride-methyl methacrylate, polyethylene, polypropylene, or a filmforming nitrocellulose composition with or without a moisture-proofing wax component. The regenerated cellulose film may be treated with an anchoring agent, e.g. the reaction product of a water-soluble polyamide with epichlorhydrin, partially condensed urea-formaldehyde or melamine-formaldehyde or mixtures of both, or polyalkylene imines, to enhance the adhesion of the coating composition. The wrapping material may be produced by impregnating a freshly-formed regenerated cellulose film in the gel state with an aqueous solution of a water-soluble salt of sorbic acid, drying the film, and applying a moisture-proofing and/or heat-sealable coating composition to one side of the film. Two freshly formed regenerated cellulose films in the gel state may be brought into continuous intimate contact to form a composite film, impregnated with an aqueous solution of a water-soluble salt of sorbic acid, dried, and a moisture-proofing and/or heatsealable coating composition applied to both sides of the composite film prior to separating the two films. The water-soluble salt of sorbic acid may be incorporated in a conventional softener and/or anchoring-agent treatment bath. Specification 771,400 is referred to.
Patent GB-185282-A (GB)
Title: Improvements in and relating to draft boards for fulling or milling machines
IPC: D06C17/02
Filed: 1921-07-12
Abstract: 185,282. Clegg, N. W. July 12, 1921. Stop-motions.-The draft-board D of a fulling or milling machine has an opening D<1>, in which is mounted on trunnions a detachable frame F of metal or alloy, preferably non-corrosive. The frame carries removable and reversible cross-bars C of oval or other section, and it may turn or swing under the action of the fabric passing through the frame or may be clamped at any desired angle by set-screws S; or the trunnions and bearings may be hexagonal &c. to enable the desired position to be obtained. The cross-bars C are received in perforations in the frame F, and they may be secured by heads C<1> and by pins or bars P engaging in perforations in the ends C<2>.
Patent GB-574022-A (GB)
Title: Improvements in wheel-operated means for the detection of railway vehicles
IPC: B61L1/04
Filed: 1943-11-11
Abstract: 574,022. Train-operated signalling devices. BOOT, J., and METROPOLITAN-VICKERSGRS., Ltd. Nov. 11, 1943, No. 18781. [Class 105] A wheel-flange actuated contact for detecting the presence or passage of a railway vehicle:at a track location comprises two juxtaposed parallel members rigidly; connected together at two or more points along their length, this assembly being resiliently supported alongside the track rail and disposed so that only one of the parallel members is engaged by the wheel flange thereby to effect a differential movement of the two parallel members at a point intermediate their points' of rigid connection and so operate an electric switch device or other means for giving an indication. As shown in plan Fig. 1, and transverse section Fig.' 2, two flat bars 1, 2 are rigidly connected together at points A, B by means of channel cross pieces 5 and studs 8, these pieces 5 being also secured to cantilever leaf springs 4 which are anchored on the track and covered by weather shields. The bars 1, 2 are also rigidly connected together at point C by being'bolted'to a lug 15 welded to the underside of the track rail 3. The bar 1 which is to be engaged by the wheel flange has welded thereto at points intermediate the rigid connections a lug 26 whereby a switch device shown to an enlarged scale in Fig. 4 is operated. A passing wheel will cause a differential movement between the bars 1, 2 at the intermediate points whereby the lug 26 will operate the switch. As shown the switch comprises a contact-operating plunger 21a which is actuated by the lug 26 pressing on a leaf spring 22 through a screw-adjustable head 24 ; the spring 22 has an adjusting screw 23 and the whole switch mechanism is housed in a casing 19 fixed to the bar 2 by studs 20 with the cable conduit 29 fixed to the cross pieces 5 by straps 30. A yielding rubber sealing ring 28 is provided at the aperture for the entrance of the lug stem 25. In place of the above switch the differential movement may act upon a dry-oxide rectifier plate to vary the resistance thereof or upon a fluid-pressure device. The bars 1, 2 may have sloping ends. Specification 574,023 is referred to.
Patent GB-1200720-A (GB)
Title: Improvements in saw teeth provided with carbide tips
Inventor: ELLIS GLYNN ARTHUR
IPC: B23D61/04
Filed: 1969-04-11
Abstract: 1,200,720. Sawing. G. A. ELLIS. 11 April, 1969, No. 18825/69. Heading B5L. A sawtooth comprises a longitudinal recess 2 of V-shaped cross-section in the leading edge, and a carbide tip 3 formed with a correspondingly-shaped surface brazed into the recess. The tip, which may be tungsten carbide, totally fills the recess and may have parallel sides 5 equidistant from the sides 6 of the tooth or divergent sides 15. The sawtooth may be on a rotary, straight or chain saw.