baber/WOPTO huggingface dataset:
Patent GB-856743-A (GB)
Title: Improvements in or relating to loading ramps
Inventor: HUNTER DENNIS JOHN
IPC: B65G69/28
Filed: 1957-02-11
Abstract: 856,743. Docks for loading and unloading vehicles. HUNTER (LONDON) Ltd., G. Feb. 11, 1958 [Feb. 11, 1957], No. 4587/57. Class 78 (4). A loading ramp is automatically pivoted to a position above and is then lowered on to the floor of a load-carrying vehicle when the vehicle is reversed against a bumper frame operatively connected with the ramp. As shown, a ramp 18, pivoted at 17 to a frame 1, is provided with a cam surface 24 which engages a cam follower 26 pivoted at 30 to the frame 1. The frame 1 is provided with rollers 4 supporting a buffer frame 5 which is guided over a frame 6, the frame 5 being provided with a pin 28 which engages in a slot 27 in the cam follower 26. When a vehicle is backed against pads 35 on the frame 5, the frame moves to the right against the action of springs 7, the pin 28 causing the cam follower 26 to turn about its pivot 30 to engage the cam surface 24, thereby raising the platform. On further movement of the frame 5, the cam follower engages the right-hand side of surface 24, allowing the platform to lower on to the back of the vehicle. A counter-weight 22 is connected to the platform by pivoted links 21, 23. A toggle linkage or other means may replace the cam and cam follower.
Patent GB-1074862-A (GB)
Title: Improvements in and relating to electrodes
IPC: H01M4/98
Filed: 1965-02-03
Abstract: In a method of producing porous sintered electrodes for fuel cells using Ni as a frame metal, up to 20 atom % of Ti, V, Cr, Co, Mo, Ru, or Ta is added to a procatalyst of a Pt group metal + Al or Pt group metal Ni + Al and the Al is etched away to leave a porous skeleton catalyst. 2-10 atom % of Ag may also be added to a Pd-Al alloy.  The procatalysts are formed by melting a compact of the powdered elements in hydrogen. The following procatalyst compositions are given:- .Pd0.6.Co0.4.Al2.5. .Pd0.6.Ru0.4.Al2.5. .Pd0.7.Mo0.3.Al2. .Pd0.4.Ni0.4.V0.2.Al2.4 .Pd0.2.Ni0.6.Ti0.2.Al2.2\t .Pd0.2.Ni0.6.Ta0.2.Al2.2\t .Pd0.5.Co0.4.Ag0.1.Al2.5\t  After cooling the procatalyst is crushed to particles of 20-40 microns and mixed with Ni and NaCl of 60-90 microns.  A layer of Ni + NaCl powder is place over a layer of the mixture and the layers are compacted and sintered between perforated steel plates at 600 DEG C. in H2.  The Al and NaCl are dissolved out in a solution of caustic soda and the catalyst is then provided with a frame and an output terminal and may be used as an anode for the electrochemical combustion of methanol. Further examples of the preparation of electrodes are given and in one three different powder layers are used.
Patent GB-606486-A (GB)
Title: A process for the manufacture of compositions particularly suitable for road-construction purposes
IPC: C08L95/00
Filed: 1946-02-14
Abstract: Compositions for road construction comprise sand, clay and, if desired, stone chippings and water, in which a change in the water content of the mixture is restricted by the addition of bitumen, with or without a diluent, e.g. gasoline or in the form of an aqueous emulsion, and containing between 1 and 5 per cent each of paraffin wax and phenols and preferably being naturally of a highly aromatic character such as cracking residues, tars and pitches or having acquired a highly aromatic character by the addition of substances rich in aromatics.  Bitumens derived from straight run processes and destructive hydrogenation or cracking processes, on tar bitumens such as coal tar and coal tar pitch, may be used.  The aromatic character may be increased by mixing with tar, extracts obtained by treating mineral oils with selective solvents or cracking residues.  "Phenols" include homologues and derivatives of phenol such as cresol, thymol, pyrocatechol and may be used in the form of creosote oil, anthracene oil, acid-treated waste lyes from the refining of cracked gasoline or lye extracts of tar; alternatively, they may be naturally present in the bitumens, e.g. coal tar. Specification 537,567 and French Specifications 772,201 and 817,509 are referred to.
Patent GB-247977-A (GB)
Title: The manufacture of products especially useful in tanning and tawing industries
IPC: C14C3/08
Filed: 1924-11-20
Abstract: 247,977. Kahn, M., Le Breton, E., and Schaeffer, G. Nov. 20, 1923, [Convention date]. Cleansing-compositions consist of a mixture or emulsion of fatty bodies, oils, soaps or saponifiable matters, with cellulosic residues of yeast, rhizopus, amylomyces or similar organisms deprived of their albuminoid substances. The residues are produced by autolysis or by heating the organisms with sodium carbonate and filtering. The residues are rapidly heated to 80‹ C. to arrest the action of ferments or oxydases, and antiseptics which have no prejudicial action on leather may be added, for example sodium fluoride, thymol or chloroform. The residues are heated to about 60‹ C., and the fatty bodies are heated to 40‹ to 80‹ C.. and then mixed. The. mixture may also be prepared by digesting a mixture of fish and yeast, and sieving and filtering to separate the skeleton of the fish and the residues from the autolysate. Further greases, oils or soaps may then be added.
Patent GB-627695-A (GB)
Title: Improvements in or relating to light polarizers and method of making same
IPC: G02B5/30
Filed: 1946-02-15
Abstract: An infra-red polarizer is formed by heating a sheet of molecularly oriented linear polyhydroxy alkane, viz. polyvinyl alcohol, acetal or ketone containing an amount of iodine approximately 35 per cent by weight of the alkane, to a temperature higher than 400 DEG  F. but below the charring temperature of the alkane.  As described a sheet is soaked in a solution of iodine in potassium iodide, dried for a few minutes at about 200 DEG  F. and then stretched to orient the molecules.  During or after stretching, the sheet is heated to 400-450 DEG  F. for about thirty seconds.  Specifications 548,759 and 549,698 are referred to.
Patent GB-572645-A (GB)
Title: Process for the manufacture of ketones
IPC: C07C45/48
Filed: 1941-04-11
Abstract: In forming ketones by passing vapours of acids over a heated catalyst such as thorium or zirconium oxides or carbonates of barium, strontium or calcium, the vapours are obtained directly from an aqueous solution containing a mixture of acetic, propionic and butyric acids, obtained, for example, by a fermentation process.  The vapours may be passed over calcium carbonate heated to 500 DEG  C. and yield a mixture of acetone, methyl-ethyl ketone, methylpropyl ketone, diethyl ketone, ethyl-propyl ketone and dipropyl ketone.
Patent GB-664513-A (GB)
Title: Improvements in devices for operating control surfaces, especially for aircraft
IPC: B64C13/30
Filed: 1949-02-23
Abstract: 664,513. Aircraft controls. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AERONAUTIQUES. Feb. 23, 1949 [Feb. 27, 1948], No. 4995/49. Class 4. A control surface 1 is connected to a bell crank lever whose arms 6 are approximately at right angles, and the ends of which are connected to transmission cables 5, which include elastic portions such as springs, the other ends of the cables being connected to a cross bar 2 pivoted at its mid point and operated by a pilot-controlled electric motor 3 through worm gearing 4. The cable springs are so arranged that each is unstressed when the associated lever arm 6 is rotated through an angle of 45 degrees into a position perpendicular to that of the surface 1 in its neutral position, such an arrangement ensuring that in any position of the cross bar 2 the torque exerted by the springs is substantially constant when the surface is displaced.
Patent GB-1191061-A (GB)
Title: Improvements relating to Straight Bar Knitting Machines
IPC: D04B15/64
Filed: 1968-02-01
Abstract: 1,191,061. Knitting-machines. SCHUBERT & SALZER MASCHINENFABRIK A.G. 1 Feb., 1968 [2 Feb., 1967], No. 5145/68. Heading DIC. The carrier stop 102 secured to the nut 10 on the lead screw 1 of a straight-bar machine is returned to its initial position or repositioned on completion of an article by reset control mechanism. The reset control mechanism may take the form of a light 180 and sensor 181 of a photoelectric arrangement which is energised by closure of a switch by a cam on a control shaft on completion of the article. An electric motor 114, its direction of rotation having been previously determined, is also energised and an electro-magnetic coupling 115 is actuated to couple the drive from the motor to the lead screw shaft via chain 110. A slide 16 is adjustably secured to a rail 150 on the machine frame at a predetermined position such that when the end 161 of the slide 16 passes between the light 180 and sensor 181 as the nut 10 is traversed along the .screw I the photoelectric control switches off the motor and disengages the coupling 115. The disconnection of the coupling removes the effect of the inertia of the motor on the drive and the unnecessary rotation of the screw 1. Alternatively a motor having a low inertia may be used. Further the sensing arrangement may include two sensors which effect control of the motor in opposite directions and rely on the nut reaching a position influencing one or the other sensor 'before rendering the motor inoperative. Instead of a single light and sensor control an apertured disc or slide corresponding with the needle spacings can be employed which counts the number of openings passed on rotation of the screw 1 and compares them with a predetermined setting, a multi-unit switch thereby controlling the rotation of the screw when returned to its original or predetermined position. Instead of a photoelectric sensing arrangement a magnetic arrangement, the effect of which can be interrupted by the slide 16 can be used. In yet another arrangement a jet of air impinging on the switch can control the screw, the jet being interrupted by the slide 16 to control the movement of the screw.
Patent GB-501095-A (GB)
Title: Improvements in valves for pneumatic tubes of bicycles and the like
IPC: F16K15/20
Filed: 1938-02-18
Abstract: 501,095. Tyre valves. CONTINENTAL GUMMI-WERKE AKT.-GES., and ROMMLER, H. Feb. 18, 1938, Nos. 5147 and 5148. Convention dates, Feb. 18, 1937 and April 30,1937. [Class 135] The body portion a of a tyre valve is made of a moulded artificial resin and is reinforced by an embedded metal tube b. The tube b extends at least up to the bottom of the valve seating as shown, but not beyond the top of this seating, and the valve cap g, preferably also of artificial resin, is extended so as to embrace the outer end of the tube b to strengthen the assembly. In a modification the metal tube b is expanded at its outer end to form the conical seating for the valve member c.
Patent GB-877983-A (GB)
Title: Filter aid
IPC: B01J20/00
Filed: 1960-02-12
Abstract: Fly ash from the burning of pulverised coal is calcined and powdered and used as a filter aid.  Preferably, access of air to the material is restricted during calcining to ensure retention of some ignitable material.  The product may be calcined a second time.  One or more alkali metal salts may be added to the material as a flux for siliceous constituents.  Ranges of ignitable matter content, of calcining temperatures and of flux proportions, are given.
Patent GB-621363-A (GB)
Title: Improvements in or relating to refrigerator cabinets
IPC: F25D23/02
Filed: 1947-02-21
Abstract: 621,363. Cabinets. THOMAS, M. H., and UNITED DAIRIES, Ltd. Feb. 21, 1947, No. 5190. [Class 52 (i)] [Also in Group XIII] A transparent sliding closure 11 for a refrigerated cabinet has runners 13 sloping inwardly and cooperating with sloping runners 12 on the cabinet. The front edge of the closure carries a rubber strip 17 which abuts against an acute-angled edge 18 of the cabinet and the rear edge 19 of the closure carries a rubber abutment 20 which engages an overhang 21 from the cabinet top. The runners 13 carry strips 14 of soft material such as velvet. A plane closure is also described. The closure comprises two spaced sheets of transparent synthetic resin, the outer sheet having a sunk portion 16 for a writing tablet.
Patent GB-573570-A (GB)
Title: Improvements relating to the coating of parts of the interior of electric discharge devices
IPC: H01J7/18
Filed: 1942-04-18
Abstract: 573,570. Discharge apparatus. FERRANTI, Ltd., and CHILCOT, A. L. April 18, 1942, No. 5201. Drawings to Specification. [Class 39 (i)] In distilling a coating of metal upon a portion of the interior of a discharge device, for example, in activating with potassium, the cold cathode of an argon-filled diode according to Specification 573,569, a pellet of the metal or a decomposable compound is contained in the exhaust tube itself, and the vapour is kept out of the exhaust system by an obstruction such as a glass rod or a physical constriction of the tube.
Patent GB-556970-A (GB)
Title: Improvements in multi-tubular steam and hot water boilers
IPC: F22B7/12
Filed: 1942-04-22
Abstract: 556,970. Return-tube boilers. DANKS OF NETHERTON, Ltd., and DANKS, J. A. April 22, 1942, No. 5395. Addition to 429,383. Drawings to Specification. [Class 123 (ii)] A wet-back marine boiler of the double returntube type has its first series of smoke tubes arranged at the level of the crown of the furnace tube as in the dry-back boiler described in the parent Specification.
Patent GB-822077-A (GB)
Title: Improvements in or relating to bituminous compositions
IPC: C08L95/00
Filed: 1957-02-18
Abstract: A composite liquid bituminous binder is made by blending 20% to 60% of an aromatic, non-volatile, viscous flux oil, e.g. an asphaltic road oil or bituminuous fuel oil or an oil obtained by solvent extraction of a petroleum lubricating oil distillate, with 5% to 50% of a volatile petroleum distillate, e.g. a gas oil or light fuel oil, kerosene, diesel oil, or naphtha, to form a non-viscous flux oil cutback, and mixing therewith at atmospheric temperature, 10% to 50% of a powdered hard asphalt, e.g. natural or petroleum asphalt, and discontinuing the mixing when the mixture starts to become viscous so that it remains pumpable. The asphalt is preferably of particle size 30 mesh and finer and comprises a fines fraction and a coarse fraction, the mixing being discontinued when these fractions are dissolved and undissolved respectively.  Instead of preparing the cutback, an already prepared liquid fluxial cutback such as a slow, medium, or rapid curing grade of liquid asphalt can be used, and this is mixed with the powdered asphalt with or without the addition of more volatile solvent, such that the latter's proportion in the composite binder remains between 5% to 50%.  Flux oil cutbacks used are specified as SC-O, MC-O, and RC-O, having a Saybolt Furol Viscosity of 75 to 150 at 77 DEG F.  The bituminous binder, when mixed with stone aggregate at atmospheric temperature, forms 4% to 12% of the stone aggregate composition.
Patent GB-399095-A (GB)
Title: Manufacture of anthraquinone derivatives
IPC: C09B1/26
Filed: 1933-02-23
Abstract: 1-Aminoanthraquinone sulphonic amides substituted in the 4-position by an amino group having identical or different hydrogen, aliphatic, alicyclic, aromatic or aliphatic-aromatic radicals, and in which the sulphonic amide group may be similarly substituted, are obtained by treating the 1-amino-4-halogen-anthraquinone sulphonic amides with the required primary or secondary amine or ammonia and the products may be sulphonated.  The reaction is carried out in the customary manner with or without catalysts.  The sulphonic amides may be obtained by the process of Specification 397,190 followed by condensation with ammonia or an amine.  According to examples, (1) 1 - amino - 4 - bromoanthraquinone-2-sulphohexylamide is treated with aniline, and 1-amino-4-methoxybenzene, to give dark blue products; (2) 1 - amino - 4 - bromanthraquinone-2-sulphomethyl or ethylanilide-sulphonic acid obtainable by sulphonating the sulphamides are treated with p-toluidine to give blue wool dyes, and the former compound unsulphonated is treated with cyclohexylamine followed by sulphonation to give a similar product; (3) 1-amino-4-anilido-anthraquinone-2-sulphanilide, and 1-amino-4-cyclohexylamine - anthraquinone - 2 - sulphomethylamide, obtained respectively from the 2-sulphochlorides via the 2-sulphamides and aniline or cyclohexylamine are sulphonated to give blue wool dyes still containing a sulphamide group.
Patent GB-517015-A (GB)
Title: Improvements in apparatus for forging, hammering and the like
IPC: B21J7/14
Filed: 1939-02-22
Abstract: 517,015. Power hammers. PEACE & SONS, Ltd., J., and PEACE, W. H. Feb. 22, 1939, No. 5603. [Class 83 (iv)] In apparatus comprising a plurality of spring' pressed hammers c slidably mounted in housings b arranged radially about the axis of a cam e adapted on rotation to move the hammers outward to compress the springs n and then release them to strike the blows, the hammers are fitted with removable dies p with detachable shanks s passing axially through the hammers .and non- rotatably anchored at their outer ends in recesses .accommodating the ends of the springs n. The shanks are screwed into the dies and have heads' t encircled by washers u engaging stops v and provided with tapped holes x to facilitate removal. The pressure of the springs may be adjusted by screws r. The housing b are provided on a plate a secured by screws i to a plate h on a framing f carrying a bearing for the cam shaft. A retaining plate a is arranged between the plates a, h. Lugs j, Fig. 1, on the hammers engage guides in the plates and carry adjustable screws q which contact with the cam. With four hammers opposed pairs operate alternately and with three, hammers operation of all is simultaneous.
Patent GB-525414-A (GB)
Title: Improvements relating to airscrew blades
IPC: B64C11/20
Filed: 1939-02-20
Abstract: 525,414. Screw propellers. DE HAVILLAND AIRCRAFT CO., Ltd., and KING, E.P. Feb. 20,1939, No. 5625. [Class 114] An air screw blade comprises a reinforcement in the form of a shank integral with fingers extending longitudinally of the blade, spaced from each other throughout their length and made of reinforced synthetic resin or resin-impregnated reinforcing material, and a filling of low density mouldable material, e.g., of expanded rubber, completing the profile of the blade and in which the fingers are embedded. In making the blades, a number of boards of wood impregnated with synthetic resin, and consisting of long boards 1, medium length boards 2 and short boards 3 with shorter filling boards 1A are arranged as shown in Fig. 1, two similar sets of boards, each for one blade, being interleaved to form a rectangular pack. A metal foil 4 is arranged to separate the boards comprising the two blades so that after heating in a press to partially set the resin, the blades may be readily separated. One such blade, after shaping of the boards, is shown in Fig. 4 arranged within a mould 5. A reinforcing skin of wire gauze, textile fabric, veneer, perforated sheet metal &c. is secured, e.g., by tacks, round the skeleton blade and the rubber and vulcanizing agents are then introduced into the mould. The leading edge of the blade may have a sheet metal cap.
Patent GB-1174485-A (GB)
Title: Method of and Apparatus for the Electrostatic Application of Solid Particles to Articles.
Inventor: WATKINS HARLEY EARL
IPC: A23L25/00
Filed: 1967-02-06
Abstract: 1,174,485. Coating apparatus. S. P. LIPOMA, H. E. WATKINS, D. L. WARD, P. C. MURRAY, H. R. ROBERTS and J. T. HOURIGAN [trading as LIPOMA ELECTRONICS CO.]. 6 Feb., 1967 [7 Feb., 1966], No. 5627/67. Heading B2L. [Also in Division A2] In a method and apparatus, Figs. 1, 3 and 4, for distributing particles of an edible, solid substance on to food products, the latter are conveyed, by a conveyer C comprising a travelling or reciprocating belt 11, beneath a feeding member 12 extending across the conveyer, and the particles are fed, by means such as a hopper 37, 38 made of electrically insulating, preferably transparent, plastics material to the member 12, so that they drop from through a high potential electric field, e.g. ranging, in potential difference between 3,000 and 50,000 volts which is established between the feeding member 12 and the conveyer to enhance evenness of distribution of the particles. The feeding member 12 may be a rotating roller or hollow cylinder, as shown, or an endless belt passing around a roller. A screen 41, Fig. 3, e.g. of stainless steel, may be located in the upper part of the hopper to break up any caked particles which may be among those supplied to the hopper. The particles may leave the hopper through a series of holes or slots 45, Fig. 4 and may be guided over the roller 12 by a flexible wiper 46, e.g. made of electrically non-conducting plastics material, which is attached to the hopper and engages the roller 12. The hopper and feeding member 12 may be located within a housing H, Figs. 1 and 3, having a removable, transparent front wall 32, a removable rear wall 33 and a removable cover 31. This housing is open below and forwardly of the roller. The walls 32 and 33 and the cover 31 may each be associated with a safety microswitch, which switches off the high potential field when the associated wall or cover is removed. Sugar may be distributed on to sweet rolls, salt or particles of cheese on to potato crisps, and flour, cinnamon, pepper, garlic or barbecue sauce powder on to food products. The potential difference may be varied according to the type and size of the edible particles; the smaller the particles the less the potential difference.
Patent GB-103911-A (GB)
Title: Improvements in Tool Holders.
Inventor: WHITFIELD CHARLES
IPC: B23B27/16
Filed: 1916-04-19
Abstract: 103,911. Whitfield, C. April 19, 1916. Tool-holders have the clamping-bolt for the tool provided with a conical head b<1> split, preferably twice at right-angles, one of the splits passing through the axis of the toolreceiving bore, so that the bolt is clamped against rotation at the same time as it is drawn into the holder to grip the tool. In a modification, the tapered portion is square and pyramidal.
Patent GB-1136596-A (GB)
Title: Pulse producing circuits
Inventor: JONES PETER DAVID
IPC: A61N1/362
Filed: 1965-02-10
Abstract: 1,136,596. Heart stimulators. JOSEPH LUCAS (INDUSTRIES) Ltd. 26 Jan., 1966 [10 Feb., 1965], No. 5728/65. Heading ASR. [Also in Divisions H2 and H3] A pulse generator, e.g. for stimulating the human heart, comprises a capacitor 32 arranged to be charged from an oscillator 21 and subsequently discharged by a breakdown device (such as 4-layer diode 37) and a switching device 39, responsive to the discharge of capacitor 32, arranged to discharge a further capacitor 43 into a load 42, the further capacitor 43 also being charged from the oscillator 21. As described, a blocking oscillator comprising transistor 22 having feedback via transformer 21, is energised from a battery 13. The frequency of the blocking oscillator is adjustable at 17 and is made independent of temperature changes by means of a thermistor 16. The output of the blocking oscillator is rectified at 24, 25 and used to charge capacitors 32, 43. 4-layer diode 37 breaks down when capacitor 32 becomes charged to a predetermined voltage so that thyristor 39 is triggered, discharging capacitor 43 via the primary 42 of a transformer. An energy-recovery diode 41 is provided. The secondary winding (not shown) of 42 is located beneath the skin of a patient and is connected to the heart. The pulse energy may be increased by setting switch 34 to contact 36 so as to utilise a 4-layer diode 38 having a higher breakdown voltage; contacts 18 become simultaneously closed so as to maintain the frequency constant. A loudspeaker 46, may be connected across the output transformer 42.