baber/WOPTO huggingface dataset:
Patent GB-540134-A (GB)
Title: Manufacture of fibre-forming interpolyamides
IPC: D01F6/60
Filed: 1940-04-04
Abstract: 540,134. Fibre-forming interpotyamides. DU PONT DE NEMOURS & CO., E. I. April 4, 1940, No. 6089. Convention date, April 4, 1939. [Class 2 (iii)] [Also in Group VIII] Fibre-forming inter-polyamides are prepared by heating, at amide-forming temperature, a mixture comprising a diprimary diamine having a radical length of from 8 to 14, a dibasic carboxylic acid having a radical length of from 6 to 12 or an amide-forming derivative thereof, and 6- aminocaproic acid or an amide-forming derivative thereof, until a product is obtained which is capable of being formed into continuous filaments which can be further cold drawn into oriented fibres. Temperatures of 180-300‹C. are specified. The proportion of 6-aminocaproic acid, or its amideforming derivative, preferably ranges from 10 to 90 molar per cent of the diamine, the diamine and dibasic acid, or its amide-forming derivative being used in substantially equi-molecular amounts. The diamine and dibasic acid may be used in the form of the corresponding diammonium salt. Instead of using monomeric reactants, the inter-polyamides may be prepared from simple polyamides, e.g. by heating together a polyamide from the polymerisable amino-acid and a simple polyamide derived from the diamine and the dibasic acid. Examples are given describing the preparation of interpolyamides from : (1) 6-aminocaproic acid and 2 : 5-dimethylhexamethylene -diammonium - α-α<SP>1</SP>-dimethyl adipate : (2) 6-aminocaproic acid and hexamethylene diammonium terephthalate: (3) 6-aminocaproic acid, decamethylene diammonium sebacate and hexamethylene diammonium adipate; Plasticizers, pigments, resins and delusterants may be added before, during or after polymerization, and viscosity stabilizers may be present. The inter-polymers may be used in making films, foils, laminated fabrics, safety glass interlayers, adhesives and impregnating and coating compositions. Specifications 461,236 and 540,135, and U.S.A Specifications 2,071,250 and 2,130,948 are referred to. According to the Specification as open to inspection under Sect. 91, any polymerizable amino-acid, any diamine having at least one hydrogen atom attached to each amino-nitrogen atom, and any dibasic carboxylic acid may be used, and further examples are given describing the preparation of polymers from : (1) 10-aminocapric acid and hexamethylenediamine adipate : (2) methyl caprolactam and hexamethylene diamine adipate : and (3) 6-aminocaproic acid, hydrazine and octadecanedioic acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-715113-A (GB)
Title: Improvements in and relating to lanterns for high pressure metal vapour lamps
IPC: F21V29/00
Filed: 1950-03-10
Abstract: 715,113. Electric discharge lamps. GENERAL ELECTRIC CO., Ltd., PRICE, W. A., and WALDRAM, J. M. March 12, 1951 [March 10, 1950], No. 6099/50. Class 39(1) [Also in Group XI] A lantern for a high pressure metal vapour lamp 10 has a shield 42 with an aperture 40 through which a seal portion 16 of the lamp passes, the shield fitting closely around the seal and screening the seal from radiated and/or convected heat from hot parts of the lamp, and the lantern having means such as a further shield 43 to form a duct for directing a stream of cooling gaseous fluid. such as the surrounding air, which has not passed around the hot parts of the lamp, on to the seal portion 19 at the side of the shield 42 remote from the hot parts of the lamp. The shields 42, 43 are preferably made of stainless steel. The shield 42 has packing members 46, 47 of asbestos, fitting closely around the seal portion 16. A treble or multiple shield can be used to form a double or multi-passage duct for cooling gaseous fluid. The lamp may be arranged horizontally and ducts for cooling air arranged vertically, each limb of the lamp being arranged to extend through one such duct. A fan may be used for driving the gaseous fluid over the seal portion. Side flaps on the shield 42, converging deflector plates 49 and an aperture 50 may be provided to improve the cooling effect. The lamp is mounted between conical centres 24 and 25, the lower centre 25 being fixed to a framework consisting a plate 30 carried by the casing 31 of the lantern which is of generally cylindrical form and the upper centre 24 being slidable in a guide 27 under the control of a spring 28. The guide 27 is mounted on a bridgepiece 32 carried by pillars 33 extending upwardly from the plate 30. The lantern may be provided with a spherical mirror 34 arranged behind the bulb of the lamp.
Patent GB-232185-A (GB)
Title: Process for the preparation of a mixture of nitrogen and hydrogen with a view to the manufacture of synthetic ammonia
IPC: C01B3/02
Filed: 1925-03-06
Abstract: Ammonium carbonate and sulphate are produced in a process for obtaining pure nitrogen from the products of combustion, with slight excess of air of coke oven gas, "lighting gas," poor gas or gases of similar composition.  The excess of oxygen is removed by treatment with hydrogen at elevated temperature and the carbon dioxide is absorbed, preferably in ammonia solution, the resulting carbonate being converted into ammonium sulphate.  The p  combustion gases after being used for heating the hydrogen retorts in the process described in Specification 232,184, [Class 1 (i), Chemical processes &c.], may be used in the process above described.
Patent GB-139019-A (GB)
Title: Improvements in and relating to the manufacture of yarns
IPC: D02G3/36
Filed: 1919-03-12
Abstract: 139,019. Downes, L. W. March 12, 1919. Twist tubes and like twisters.-A core yarn 14 is drawn across the face of a card-covered cylinder 13 upon which are spread asbestos or other fibres in order that the core may be covered by such fibres. The core is twisted upon its axis as it passes across the cylinder by a pair of driven rollers 17, 18, and these rollers are provided at intervals with recesses 19, 20 which free the yarn and allow the twist in the core periodically to return to the normal.
Patent GB-1404406-A (GB)
Title: Production of lubricating oils
IPC: B01J23/00
Filed: 1973-02-08
Abstract: 1404406 Lubricating oils BRITISH PETROLEUM CO Ltd 18 Jan 1974 [8 Feb 1973] 6214/73 Addition to 1236223 Heading C5E Lubricating oil is produced from petroleum feed boiling above 350‹ C. by a process comprising the three stages (a) contacting with hydrogen and a catalyst containing one or more Group VIa and VIII components on a refractory oxide support at 343-454‹ C. and 70- 210 bars gauge, (b) contacting with hydrogen and a catalyst containing one or more Group VIa and VIII components on a crystalline mordenite of reduced alkali metal content at 250- 500‹ C. and 7-210 bars gauge, and (c) contacting with hydrogen and a catalyst containing one or more Group VIa and VIII components on a refractory oxide support containing 1 to 10% by weight of halogen at 200-450‹ C. and 30- 210 bars gauge. The feed can be a vacuum distillate boiling in the range 350-600‹ C. and can be distilled into narrow boiling cuts before or after any of the three hydrogenation stages. In examples the catalyst used in the first stage comprises either nickel, cobalt and molybdenum on alumina or cobalt and molybdenum on alumina, the catalyst used in the second stage comprises platinum on decationized mordenite, and the catalyst used in the third stage comprises cobalt and molybdenum on a fluorinated silica-containing alumina.
Patent GB-720789-A (GB)
Title: Apparatus for regulating the flow speed of fluids
Inventor: SMIT PIETER
IPC: G05D7/01
Filed: 1953-03-06
Abstract: 720,789. Fluid-actuated valves. NAAMLOOZE VENNOOTSCHAP OCTROOIEN. MAATSCHAPPIJ ACTIVIT. March 6 ,  1953, No. 6234/53. Class 135. In a fluid-flow regulator, fluid from a central tube I impinges centrally on an axially movable cup-shaped wall member 2 coupled to an annular slide member 3 controlling ports 4 and adjustably loaded towards the tube e.g. by an adjustable spring 7. The tube 1 is of conical shape and can be replaced by one of different size. The wall member 2 is unitary with a piston 6 which serves as a hydraulic brake. The ports 4 are diamond shape to avoid a too-sudden cutting-off of the flow. In a modification, the annular slide member is arranged within the central tube and controls triangular ports at its base admitting fluid from a lateral inlet. The tube projects through a partition into a chamber containing the cup-shaped wall member. The slide member may be connected to the wall member by a lever system, a wire or the like. U.S.A. Specification 1,933,852 is referred to.
Patent GB-1022913-A (GB)
Title: Runway light and replacement lamp unit
IPC: B64F1/20
Filed: 1964-02-14
Abstract: 1,022,913. Lamps. STRUCTURAL ELECTRIC PRODUCTS CORPORATION. Feb. 14, 1964 [April 8, 1963], No. 6236/64. Heading F4R. [Also in Division H1] A light designed for installation in a surface, such as an airport runway, over which wheeled vehicles run, comprises a base portion 10 having a recess 12 therein opening out of the top of the base and a slot 14a, 14b extending transversely in at least one direction from the recess to the periphery of the base, at least one bore 17a extending from the recess to the bottom of the base and having an electrical contact 19 disposed therein, a detachable cover 30 over the recess, a box 37 secured in watertight engagement to the bottom of the cover and fitting into the recess, an elongated lamp 49 mounted in the box, electrical contact means 45 on the outside of the box engaging the contact 19, and at least one transparent window 38a in the box disposed opposite the end of the slot to project a low beam of light from the lamp. Preferably the window contains a removable lens 53. The unit comprising the cover and the box is secured to the base by two screws 36b so that in the event of a failure of the lamp a new unit can be quickly fitted and the old unit taken to the repair shop. The lamp 49 (see Division H1) has end caps 50 with contact blades 51 fitting between jaws connected to the contacts 45, and a disc cut-out 46 is provided to short-circuit the lamp if the filament burns out.
Patent GB-618429-A (GB)
Title: Improvements in hard-surfacing electrodes
IPC: B23K35/368
Filed: 1946-03-01
Abstract: 618,429. Making compound welding electrodes. SOC. LE CARBONE LORRAINE. March 1, 1946, No. 6392. Convention date, March 10, 1945. [Classes 83 (ii) and 83 (iv)] Uniting by fusion.-A welding electrode containing hard granular carbides such as tungsten carbide inside a thin-walled sheath of soft steel for depositing on a base of iron alloy &c. in the manufacture of boring bits or rings on the end of a tool for boring grinding holes, is deformed after it has been filled so as to retain the carbide grains in the sheath during welding and release them in a regular manner. A circular sheath may be filled with the carbide grains and then rolled into oval form with grooves 2, 3, longitudinal, transverse or helical, or with discontinuous circular or elongated impressions which may be oblique. The carbide may be mixed or alloyed with up to 3 per cent of metals or alloys of lower melting point such as iron, cobalt or nickel, the proportion in the case of cobalt being preferably 0.7 to 1.5 per cent. The carbide and iron, cobalt or nickel may be formed into a sintered agglomerate and then crushed to form grains which are introduced into the sheath.
Patent GB-816260-A (GB)
Title: Industrial truck handle operated control
Inventor: ULINSKI BRONISLAUS I
IPC: B62B5/06
Filed: 1957-02-26
Abstract: 816,260. Electrically propelled vehicles YALE & TOWNE MANUFACTURING CO. Feb. 26, 1957, No. 6402/57. Classes 79(3) and 75(5) A motorized industrial truck has mounted at one end a unit 10 comprising a motor 24 driving a combined steering and traction wheel 11, a brake urged to an applied position and a steering handle 17 pivotally mounted between extreme positions; an actuating member 35 moving with the handle co-acts with a moveable lever 30 on unit 10 so that the lever is in the "brake on" position and a switch 40 on the unit renders the motor inoperative when the handle's position is at either extreme, and the brake is "off" and the operation of the motor restored to the control of a means 18 on the handle when the handle is in any intermediate position. The handle 17 is pivoted to the unit to move from the horizontal to the vertical and it can also rotate the unit 10, which is mounted in bearings 25 on the truck frame 12. The motor 24 drives, the wheel 11 through gears in a casing 23 which supports brake shoes 27 that are pressed on to a brake drum 26 by a rod and spring assembly 28-29. The lever 30 is pivoted to the casing 23 on a shaft 31 and has a cam 32 located between the ends 39 of the brake shoes 27. It also has an arm 38 operating the switch 40 through a rod 43 and a roller 34 at its end. The member 35 is mounted coaxially with the hinge-pin of the handle to move rigidly with the handle about it. A cam 38 on the member 35 engages the roller 34 which displaces the lever 30 so long as the handle is in an intermediate position, but when the handle is vertical or horizontal the roller engages in one of the angles of the inclined faces on either side of the cam 38 and the lever is not displaced (Figs. 3, 4 and 5, not shown), Displacement of the lever causes the cam 32 to rotate and to open the brake shoes. It also moves up the rod 43 so that a lever 47 presses against a button in the switch 40 to close the circuit which includes the motor 24 and control switch 18.
Patent GB-546319-A (GB)
Title: Improvements in piezo-electric circuits
IPC: H03H9/54
Filed: 1941-05-19
Abstract: 546,319. Valve circuits ; impedance networks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 19, 1941, No. 6427. Convention date, May 18, 1940. [Classes 40 (iii) and 40 (v)] In a high-frequency signal conveying system, which includes a piezo-electric crystal with signalconveying electrodes, there is provided an electrode separate from the crystal conveying electrodes which is in circuit with an impedance for varying the resonant frequency of the crystal. Fig. 2 shows an arrangement in which the output of valve 7 is coupled to the input of valve 8 through the medium of pairs of electrodes 42, 41 and 44, 41 of a piezo-electric crystal 40. Reaction path 76, 77 is provided to form an oscillator whose frequency is determined by crystal 40. A tuned circuit 54, 55 is connected across electrode 41 and a control electrode 43 surrounded by an earthed screen 78. Across the tuned circuit is a valve 60 connected as a thermionic reactance, the value of which can be varied as by a microphone 71, to alter the impedance of the circuit connected to the control electrode 43 and hence to change the frequency of the crystal 40 and to serve for frequency modulation of the oscillator. A modification is described (Fig. 1, not shown) in which the variable frequency crystal is connected in a signal conveying channel supplied with a carrier wave which may be either phase or amplitude modulated by variation of the impedance in the auxiliary electrode circuit of the crystal.
Patent GB-286457-A (GB)
Title: Process for producing electrolytic deposits of metals or alloys
IPC: C25D3/66
Filed: 1927-03-08
Abstract: 286,457. Jackson, L. Mellersh-, (Siemens & Halske Akt.-Ges.). March 8, 1927. Metals and alloys, depositing.-In the electrodeposition of metals and alloys from a molten mass on to metallic bodies, a mass is employed which has a melting point differing by at least 100 degrees C. from that of the substance to be deposited. This selection enables chromium, nickel, molybdenum, tungsten, &c. to be deposited alone or simultaneously with other metals from a molten bath comprised chiefly of boron compounds, sulphates, bisulphates, silicates, or cyanides. Chromium is deposited on iron from a mass containing 15 parts of chromium oxide, 40 parts borax, and 50 parts sodium metaphosphate, at a temperature about 950 degrees C. by a current consisting of about 1,000 amperes per square metre of cathode. A nickel compound in the mass would effect deposition of nickel with the chromium. Deposition is frequently effected by a direct current of non-uniform strength so as to produce a deposit of finer grain, or this could be so effected by reversing the current between periods of deposition. If silicates are introduced into the mass, a hard silicon-containing metal coating is deposited. The process is applicable to the production of auxiliary anodes, for use in holes or apertures in the article to receive the deposit, by deposition of the required metal on a copper &c. rod or wire. Specifications 6751/93 and 265,170 are referred to.
Patent GB-559519-A (GB)
Title: Improvements in and relating to belt conveyors
IPC: B65G21/14
Filed: 1942-05-13
Abstract: 559,519. Extensible conveyers. TAGG, W. H. May 13, 1942, No. 6456. [Class 78 (i)] In order readily to advance the loading end of a belt conveyer to keep pace with the heading, an extensible forward end is provided. The extension comprises a girder frame 15 fitted with beltsupporting rollers 17 and carried by wheels 23 on independent supports 22, rollers 20 on a drum frame 19, and rollers 36 on the frame of the main conveyer 10. The belt 13 of the main conveyer may form the conveying belt of the extension, being taken round drums 25, 26, 27 in the frame 19 and round drums 16, 16<SP>1</SP> on the movable extension 15. A shoot 34 delivers the material on to the main conveyer. The extension may be located at a level above that of the main conveyer, as shown, or, if the conveyer is used for delivering material to the extension end, it may be located below the main conveyer. Shifting of the extension may be effected by power or manually through winch, rack and pinion, or ratchet mechanism.
Patent GB-847832-A (GB)
Title: A method of treating leathers to make them water-repellant
IPC: C14C9/00
Filed: 1957-02-26
Abstract: 847,832. Waterproofing leather. WAUQIEZ S.A., H. Feb. 26, 1957 [March 23, 1956], No. 6476/57. Class 140. Tanned leather is made water-repellent while remaining air-permeable by treatment with one or more amines of the general formula R.NH 2 , where R is an aliphatic radicle containing 8-22 carbon atoms, or one or more diamines. The amines may be wholly or partly neutralized by acid residues in the leather resulting from tanning, or the amines may be neutralized with acid before or after incorporation in the leather to ensure that the pH value of the treated leather will be 3.5-5.0. Specified acids are acetic, formic, lactic, hydrochloric, sulphuric, sulphurous, phosphoric, oleic, stearic, abietic, resinic, and naphthenic acids. The amines, which may be used in the form of their salts with acids, may be applied as solutions in organic solvents, or as emulsions. There may be added one or more water-repellent substances soluble in the same solvent as the amine or amine salt, e.g. mineral, vegetable, or animal oils, wax, paraffins, oleates, stearates, naphthenates, or resinates. In examples: (1) zirconium-tanned leather is soaked in a solution prepared by adding to a heated ethyl alcoholtrichlorethylene solution of amines having aliphatic carbon chains of 16-18 carbon atoms, about half being saturated and the remainder unsaturated, first sulphuric acid, and, after the exothermic reaction is completed, acetic acid, colophony, petroleum jelly, and white spirit. The leather after draining and wiping to remove excess, is hung for 2 days in a damp atmosphere and then dried to a moisture content of 15-18% ; (2) zirconium tanned. heavy leather is soaked in a solution prepared by adding, first sulphuric acid, then colophony to an ethyl alcohol-trichlorethylene solutionof higher aliphatic amines mainly composed of C 18  chains of which two thirds are unsaturated. The treated leather is completely dried, soaked in cold water, and re-dried to a moisture content of 15-18%; (3) as in (2) but sulphuric acid may be replaced wholly or in parti by phosphoric acid, and part of the colophony by oleic, stearic, or naphthenic acid; (4) vegetabletanned leather is treated as in Example (2) (5) powdered tartaric acid, phenol, and powdered colophony are added to a solution in trichlorethylene of higher aliphatic amines prepared from a mixture of tallow and oleine, and zirconium-tanned cow leather is soaked in the resulting solution, dried, immersed in water, and again dried to a moisture content of 15-18%.
Patent GB-110915-A (GB)
Title: Improvements in or connected with Hand Grenades.
Inventor: O'NEIL RODOLPH STUART
IPC: F42C14/02
Filed: 1916-11-06
Abstract: 110,915. O'Neil, R. S. Nov. 6, 1916. Projectiles; projectiLe fuses.-Con sists in providing in a grenade or bomb a contact - cap adapted after discharge to rotate relatively to the body of the projectile so as to free a percussion firing- device after a predetermined time, subsequent impact of the contact-cap upon an obstacle effecting the operation of the firing- device. In the grenade shown in Fig. 1, a cap 20, normally locked by a bendable metal strip 28, is fixed to a plunger 25 to which a coiled spring 26 is connected. The plunger contains a spring-pressed striker 3, which is held cocked by means of balls 6. When the grenade is thrown, the cap 20, having previously been released from the strip 28, is rotated during flight by the spring 26 until, after a certain interval, a ball 30 is brought to a recess 31. Subsequent impact of the cap 20 drives the plunger 25 inwards, allowing the balls 6 to escape into a recess 33, and thus enabling the spring-actuated striker 3 to fire the percussion cap. Should impact occur before the necessary rotation of the plunger has occurred, the ball 30 would prevent its inward movement. In a modification, the initial release of the cap 20, to allow of its rotation, is effected by pushing in a projecting-piece which controls a locking-ball.
Patent GB-1088921-A (GB)
Title: A classifying device for name index registers etc
IPC: B42F17/18
Filed: 1965-02-15
Abstract: 1,088,921. Telephone directories, dictionaries &c. E. JACOBS. Feb. 15, 1965 [Feb. 20, 1964], No. 6514/65. Heading B6E. A device which can be used as a telephone directory, dictionary &c. comprises (1) a series of trays 3 each having on an exposed part thereof a first index as shown in Fig. 2, by which a tray corresponding to a first letter of a reference, e.g. a subscriber's name, may be selected; (2) a number of turnable sheets 13 e.g. of plastic material attached at 11a to each tray in overlapping formation; (3) a second index along narrow parts 15, Fig. 5, of the exposed edges of the sheets which may be differently coloured for vowels and consonants whereby a sheet or sheets corresponding to the second letter of the reference may be selected; (4) a third index along wide parts 16 of the exposed edges of the sheets whereby a sheet corresponding to the third letter of the reference may be selected and (5) a notebook 14 between each pair of sheets with a stepped index corresponding to that on the tray and containing information pertaining to the references. By opening a selected notebook at a page corresponding to the first reference letter, the information required is obtained. Each tray 3 is provided with side plates 12, Fig. 3 (not shown), a hinged end-piece 9 and a hinged cover 5. The trays 3 may be held in a book-shaped easing 2. The indexes are arranged so that combinations of letters which do not occur in words or names are omitted.