baber/WOPTO huggingface dataset:
Patent GB-380110-A (GB)
Title: Improved method and apparatus for the production of nitrogen and hydrogen by the thermal decomposition of ammonia
IPC: C01B3/04
Filed: 1931-06-04
Abstract: <PICT:0380110/III/1> In the thermal decomposition of ammonia into nitrogen and hydrogen, the ammonia, preheated by the outgoing decomposition products, is decomposed by passage in two stages over a catalyst, an electric heater being provided between the stages to heat the partially decomposed gases.  As the major part of the decomposition is effected in the first catalytic stage, no injurious action on the electric heating wire is experienced.  As catalyst, magnetic oxide of iron containing small amounts of potash and alumina and reduced in hydrogen may be employed.  In the apparatus shown, catalytic chambers 16, 17 are constituted by three concentric tubes 1, 2, 3, the first two being welded to a lower plate 4 and the third to an upper plate 5, spaces being left between the tubes 2, 3 and the plates 5, 4 respectively.  The outermost tube 1 is also secured to the upper plate 5 and an electric heating wire 7 is wound round the innermost tube 3. Preheating of the ammonia to be decomposed is effected in a coiled preheater formed from concentric tubes 11, 12, ammonia, preferably in the liquid form, being supplied by a tube 21 to the space between the tubes 11, 12.  The decomposition products are conveyed from the chamber 17 to the inner tube 12 by tubes 13, 14; a pyrometer may be inserted through a tube 23 into the chamber 17 where the temperature is maintained at about 550 DEG  C. by a temperature regulator 20 of known kind inserted by the tube 13 into the inner chamber 17.  The apparatus is contained in a casing 19 and surrounded by heat-insulating material and the tubes 1, 2 are made of stainless steel or monel metal.  In operation, liquid ammonia supplied by the tube 21 is vaporized and preheated by the outgoing gases and is delivered to the base of the catalytic chamber 16 whence is passes over the electric heater 7 to the catalytic chamber 17 where the decomposition is completed, the gases being delivered to the inner tube 12 of the preheater by the tubes 13, 14.
Patent GB-1299884-A (GB)
Title: Spectral sensitization of a photoconductive recording element
Inventor: VANHEERTUM JOHANNES JOSEPHUS
IPC: G03G5/06
Filed: 1969-03-28
Abstract: 1299884 Photoconductive recording element AGFA-GEVAERT 24 March 1970 [28 March 1969] 16345/69 Addition to 1228411 Heading H1K An electrophotographic element comprises a polymeric substance containing recurring groups of formula wherein R is H, an aliphatic or cycloaliphatic group and Z represents the atoms necessary to complete a substituted or unsubstituted aromatic nucleus and a sensitizing methine dye of a specified formula. Lists of suitable methine dyes are given and the disclosure relating to other materials is similar to the Parent Specification 1,228,411.
Patent GB-406172-A (GB)
Title: Improvements in or relating to telephone paystations
IPC: H04M17/02
Filed: 1933-06-07
Abstract: 406,172. Substation apparatus. TELEPHON-APPARAT-FABRIK E. ZWIETUSCH & CO., GES., 6, Salzufer, Charlottenburg, Berlin. June 7, 1933, No. 16356. Convention date, Aug. 4, 1932. [Class 40 (iv).] In automatic telephone systems wherein connection is made by insertion of a coin or coins in a coin slot the coin or coins are adapted to be held in two different positions, collection or refund being determined in the first position and the transmitter freed for speech in the second position. As shown, a coin is inserted into a shoot 2, the bottom of which is formed by a member 11 pivoted at 12 and connected with the receiver hook. The coin first encounters an arm 6, pivoted at 7, and opens contacts 13 which normally short-circuit the dial contacts, permitting the required number to be dialled. If there is no reply, the act of replacing the receiver on its hook pivots the member 11 clear of the shoot and allows the coin to fall into a return shoot 4 ; otherwise the actuation of a spring-pressed button 8 pivots the arm 6 rearwardly and permits the coin to pass down the shoot 2 to the end 9 of the member 11, where it closes contacts 14 which put the transmitter into operation. If the device is adapted for operation by two coins, the first becomes jammed between an abutment 16 and a tongue 15 on the member 11, and deflects the second to the operative position. At the end of the call, deflection of the member 11 by the receiver hook allows the coin to drop into a container 5.
Patent GB-425406-A (GB)
Title: Improvements in or relating to the manufacture of medical preparations of bacterial toxins
IPC: A61K39/02
Filed: 1933-06-07
Abstract: Bacterial toxins for subcutaneous and like injection are incorporated in a fine emulsion of a fatty oil or fat so as to be adsorbed on the dispersed particles of the oil or fat.  The toxin may be added to the emulsion or the oil &c., may be emulsified in an aqueous medium containing the toxin.  The diameter of the oil particles in the emulsion is preferably about 1/2 m , and should not exceed 1 1/2 m , and the emulsion may be made by means of the apparatus described in Specification 323,534, [Class 81 (i)], operating at a pressure of 3000 to 4000 lbs., per sq. inch.  Endotoxins for use in the process may be prepared by a preliminary passage of a suspension of bacteria through the emulsifier so as to disrupt the bacteria and release the toxins; alternatively the bacteria may be disrupted by other mechanical means, or solutions of bacteria prepared according to Specification 425,216 may be used.  The emulsion may be one containing from 5 to 30 per cent of olive oil emulsified by means of sodium carbonate and oleic acid or by means of gum acacia; it may be adjusted to pH 7,4 to 8,0, and may be sterilized at 60 DEG  C. Phenol may be added to the continuous phase or to the finished emulsion.  Specification 417,715 also is referred to.
Patent GB-1032372-A (GB)
Title: Polyester compositions
IPC: C08G63/20
Filed: 1963-04-25
Abstract: Curable compositions comprise stoichiometric amounts of a polyester resin which is the reaction product of at least one polybasic acid and at least one polyhydric alcohol and a curing agent comprising a polyanhydride of the formula <FORM:1032372/C3/1> where R is an unsubstituted aromatic or saturated aliphatic hydrocarbon radical, an organosilicon radical or a divalent metal atom, each A is -O- or -NH-, each R1 is a radical derived from benzene or a saturated aliphatic hydrocarbon radical, to two adjacent atoms of which the anhydride radical is attached, and n is an integer of at least 2. The polyester may be derived from, as acids isophthalic and terephthalic acids, and as alcohols ethylene glycol, glycerol, butanediol, pentanediols, neopentyl glycol, 1,1,1-trimethylolethane, trimethylolpropane, sorbitol, mannitol, diglycerol, and dipentaerythritol. The curing agent may be derived from trimellitic acid, 1,2,4-naphthalenetricarboxylic acid, 1,4,8-naphthalenetricarboxylic acid, 1,2,4-butanetricarboxylic acid, 1,2,3-benzenetricarboxylic acid, 1,2,3-propanetricarboxylic acid and 2,3,6-napthalenetricarboxylic acid and their anhydrides, and from polyhydric phenols, polyhydric alcohols, polyamines, Fe, Cu, Zn and alkaline earth metals. In the examples an ethylene glycol-glycerol terephthalate containing TiO2 and fume silica is cured with: hydroquinone bistrimallitate anhydride, neopentyl glycol bistrimellitate anhydride, bisphenol-A bistrimellitate anhydride, pentaerythritol tetrabistrimellitate anhydride, glycerol tristrimellitate anhydride, p1-phenylene bistrimellitamide anhydride, cupric bistrimellitate anhydride, zinc bistrimellitate anhydride and ethylene glycol bistrimellitate anhydride.
Patent GB-339615-A (GB)
Title: Closure for the mouth of pipes
IPC: B60K15/04
Filed: 1929-05-28
Abstract: 339,615. Beck, H. March 1, 1929, [Convention date]. Void [Published under Sect. 91 of the Acts]. Retaining devices below closure. - A stopper for the filling openings of motor vehicle-tanks &c. comprises a plate-spring 5 which engages the mouth of the opening 10 in the flat position and is released therefrom by pressing down a bolt 6. The bolt has a square shank 6 and a round neck 6<1> and the stopper is held in the release position by a bayonet-joint movement of the bolt relative to the top 1. The bolt is axially movable in the top 1 except when the square shank 6 is turned so that its corners engage therewith.
Patent GB-925518-A (GB)
Title: Improvements in or relating to mounting blocks for electrical accessories
Inventor: HARGREAVES BRIAN
IPC: H02G3/10
Filed: 1960-05-10
Abstract: 925,518. Bases for couplings. ASHLEY ACCESSORIES Ltd. May 1, 1961 [May 10, 1960], No. 16421/60. Class 38 (1). A mounting block is provided with two pairs of holes 10, 11 and 12, 13 which can be used interchangeably for securing the block to a support or an electrical accessory to the block, and apertures or " knock-outs " are provided at 14 for the passage of conductors into the block vertically or horizontally. Further "knockouts " 15 are positioned asymmetrically with respect to the centre lines drawn through the pairs of fixing holes, permitting back entry of conductors. Tapped metal inserts (Fig. 9, not shown) may be forced into one pair of holes so as to receive screws fixing an accessory to the block.
Patent GB-1378110-A (GB)
Title: Slitting machine and method
IPC: B26D1/04
Filed: 1973-04-05
Abstract: 1378110 Cutting tubes ARMSTRONG CORK CO 5 April 1973 [22 Aug 1972] 16430/73 Heading B4B [Also in Division F2] A tube, e.g. of foamed plastics, is cut into two hinged halves by forming a radial cut 17 internally down to an outer covering 12 in advance of a through cut 18. Apparatus forming the cuts comprises a conveyer forcing a tube against an internal cutter 45 which is upstream of an external cutter 44 forming the cut 18. Before cutting, a portion 15 of the outer cover is folded back. The apparatus has an endless conveyer 25 with dogs 28 for passing the tube between laterally and vertically adjustable guide rails 31. One or more hold down elements (58), Fig. 5 (not shown), may engage the tube from above. The cutters 44, 45 are supported from a bar 42, the former directly and the latter by a plate 48 carrying a stem or rail 49 to which the cutter 45 is attached. The stem passes down the centre of the tube and is adjustable in height via the connection of the plate 48 to the bar 42.
Patent GB-996559-A (GB)
Title: Blocking of footwear
IPC: A43D11/14
Filed: 1963-04-26
Abstract: 996,559. Boots &c. S. ASHWORTH. March 12, 1964 [April 26, 1963], No. 16435/63. Heading A3B. An article of footwear, e.g. a slipper having a fabric or felt upper, is blocked by placing it on a perforate last 23, steaming it by applying steam under pressure to the interior of the last and then drying it by applying suction to the interior of the last. The last 23 is a hollow expansible last having a fixed forepart 28 and a movable heel part 30 which has a hollow spigot 31 which slides in a socket in the forepart 28 to provide a passage for steam and suction. The heel part 30 is moved by the piston rod 35 of a pneumatic ram 36 via levers 34, link 33 and lever 32. The interior of the last is connected by a passage 25 to the upper chamber 13 of a steam box 10. Steam is circulated through the lower chamber 14 by pipes 17, 18 and a valve 15 controls the flow of the steam to the last. Suction is applied to the upper chamber 13 by a pipe 20 and is controlled by a valve 21. During the blocking operation the sole of the shoe may be pressed against the last by a pressure pad 43 which is operated by a ram 46. The apparatus described has two lasts for blocking a pair of shoes simultaneously.
Patent GB-457016-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04C2/10
Filed: 1936-06-13
Abstract: 457,016. Rotary pumps. WASS, J., Glendon, Park Drive, Forest East, Leicester. June 13, 1936, No. 16511. [Class 110 (ii)] The pump has a rotor 2 provided with vanes 2a which co-operate with impellers 4 mounted loosely in the casing 1 to pump fluid from an inlet 5 to a delivery port 6. Centrifugal force causes the curved surface of each impeller to bear against the casing bore, and a vane 2a drives it. A thrust plate 12 is formed integrally with a fixed bush 10. A chamber 11 contains grease for lubricating purposes. Reference has been directed by the Comptroller to Specifications 19896/14 and 169,229, [both in Class 110 (ii)].
Patent GB-167647-A (GB)
Title: Improvements in clips for holding or retaining neckties and other articles
IPC: A44B6/00
Filed: 1920-06-19
Abstract: 167,647. Edmonds, Ltd., G., and Edmonds, H. June 19, 1920. Clips, flexible-jaw.-In a clip, applicable for use as a necktie-retainer, the tie &c. is gripped between the upper arm of a U-shaped frame 1 and a spring tongue 2, secured within the frame 1 and connected by a link 5 to an operating-rod 4, the clip being locked by the toggle action of the link and rod. The tongue 2 is preferably formed with a slot 7 having a cross-bar 8, around which one end of the link 5 is bent. The rod 4 may be dispensed with and the link 5 hinged between ears on an operating-slide projecting through a slot in the lower arm of the frame 1.
Patent GB-1461210-A (GB)
Title: Method and apparatus for aerating waste water valve with generally spherical closure member
IPC: C02F1/74
Filed: 1975-04-22
Abstract: 1461210 Aerating liquids STAMICARBON BV 22 April 1975 [26 April 1974] 16665/75 Heading B1C A method of introducing oxygen into a body of wastewater in a vessel 1 comprises feeding oxygen-containing gas under pressure into a chamber submerged in the. water and displacing the water to bring quantities thereof successively, in kinetically energised state, into contact with the gas from the chamber, the waste water being forced into the chamber as jets and the quantity of gas fed to the chamber in unit time being substantially equal to the amount introduced from the chamber into the liquid.  In apparatus for carrying out the method, waste water is supplied by a tangential feed pipe 4 to the vessel 1, which may be cylindrical, polygonal, elliptical or in the shape of an annulus, the pipe opening into the vessel below the openings of a pair of liquid discharge tubes 2, 3. Plates 5 are attached to each tube to form therewith elongated bell chambers 8 closed at their ends by walls 10. Air under pressure is fed to the chambers through air tines 7 and water is pumped upwardly into the entry portion of each tube by pump impellers 14 driven from mechanism 16 carried by plates 9 mounted on the vessel. The water pumped along the tubes 2, 3 is discharged through orifices 6 to form jets 11 having a slight downward inclination and directed across the open bottom of the chambers. The jets carry air from the chambers into the body of water which is discharged from the vessel through an outlet 12.
Patent GB-1185042-A (GB)
Title: Improvements in or relating to Distributors
Inventor: HARGREAVES DEREK BURTT
IPC: A01C15/16
Filed: 1966-04-16
Abstract: 1,185,042. Seed and fertilizer distributers. SISIS EQUIPMENT (MACCLESFIELD) Ltd. 3 April, 1967 [16 April, 1966], No. 16756/66. Addition to 964,156. Heading A1D. The distributer claimed in Specification 964,156 is provided with two resilient rollers which are arranged at a fixed distance from each other and the rate of measured delivery from the rollers is varied by driving the rollers from landwheels (12) by means of change-speed gearing comprising inter-changeable sets of gear wheels. The landwheels (12) may also be changed for others of a different diameter. The rollers are mounted on bearing members which are removable and can be replaced by members having differently spaced axle bearings.
Patent GB-744788-A (GB)
Title: Improvements in or relating to magnetrons
IPC: H01J23/22
Filed: 1953-06-17
Abstract: 744,788. Magnetrons. M-O VALVE CO., Ltd., and KETTLEWELL, E. June 2, 1954 [June 17; 1953], No. 16790/53. Class 39 (1). In a multi-cavity magnetron with double ring strapping 11, 12 at each end of the anode, each ring is broken at one place 14, 15 lying on the side of the anode away from the output coupling 8. The strap breaks are similarly located at each end of the anode on radii equally inclined to the plane of symmetry X-X introduced by the output coupling. The corresponding inner or outer straps at each end of the anode may be connected to the same or opposite set of anode segments. The output coupling may be a loop or waveguide.
Patent GB-1228309-A (GB)
IPC: F42C19/08
Filed: 1969-03-31
Abstract: 1,228,309. Igniters. FRANCE, ARMED FORCES, MINISTER OF. 31 March, 1969 [10 April, 1968], No. 16810/69. Heading F3A. An igniter for solid propellant rockets comprises a substantially cylindrical, flexible plastics body 1 having an axial bore 2 and axially extending cylindrical cavities 3 symmetrically distributed around the axial bore with the axes of the cavities lying on at least one ring centred on the bore axis, radial passages 4 and 5 connecting the cavities to the axial bore and to the outside of the body, a primary charge 6, and an ignition charge comprising alumino-thermic pellets 10 uniformly loaded in the cavities around the axial bore. The primary charge comprises black or alumino-thermic powder and is associated with a pyrotechnic system 9 and an electric ignition device 8. Assembling means 7 for the primary charge comprises a lattice-work cage having a polyethylene cover. The pellets 10 comprise a mixture of potassium perchlorate, aluminium and aluminium stearate as binder. The plastics body 1 comprises polyurethane having as a filler an alkaline earth metal oxalate.
Patent GB-717418-A (GB)
Title: A process for the production of unsaturated cyclic diand poly-acetals
Filed: 1951-07-16
Abstract: Unsaturated cyclic di- or poly-acetals are obtained by reaction between a tetrafunctional or higher polyhydroxy alcohol and an unsaturated aldehyde in the presence of an inert solvent and an acid catalyst, the diluent serving to remove the water formed by azeotropic distillation.  In examples, pentaerythritol is caused to condense with acrolein, and crotonaldehyde, in presence of catalyst and solvent to give diallylidene and dicrotonylidene diacetals; 2 : 2 : 6 : 6-tetramethylol-cyclohexanol, obtainable by condensation of cyclohexanone with aqueous formaldehyde, and sorbitol are condensed with acrolein, to give a diallylidene acetal alcohol and a triallylidene acetal, respectively.  A triacetal of mannitol with acrolein is also referred to. Specification 506,613 is referred to.
Patent GB-699679-A (GB)
Title: Improvements in or relating to a bathtub
IPC: A47K3/02
Filed: 1950-12-18
Abstract: 699,679. Baths. RODMAN, C. J. Dec. 18, 1950, No. 16859/52. Divided out of 699,642. Class 26 A bath, having the drain and water connections located in its centre and the latter in the front wall of the bath, has an apron 30, 31 which extends downwardly from the rim 21 at the front of the bath and a movable panel or panels 32 in the centre of the apron for access to the plumbing. The bath is preferably of the form described in Specification 699,642 and the upper hedge of the panel 32 is hooked on to a turned-up portion of the upper rim of the bath with the lower edge bent through a right-angle so as to rest on the floor. Dials 11, 12 control the supply of hot and cold water to a mixer and slots may be formed in the panel 32 to allow it to be slipped up behind the dials or holes may be provided through which the dial stems can pass, the dials then being attached to the stems. The space between the apron 30, 31 and the bath itself may be used for storage and be fitted with shelves for soap or brushes. Two or more panels 32 may be fitted and hinged to the rim or the panel may be circular in form and held in place by spring clips.
Patent GB-629700-A (GB)
Title: Improvements in or relating to the packaging of narrow fabrics
IPC: B65H75/00
Filed: 1947-06-27
Abstract: 629,700. Packing tape &c. HAMEL & SON, Ltd., E. B., and HAMEL, I. D. E. DE. June 27, 1947, No. 16971. [Class 94(i)] A, "knot," i.e. a short flat skein, of narrow fabric is provided with one or more ties b-f of adhesive-coated plastic ribbon of a kind which is capable of adhering to itself but has a relatively low adhesion to fabric. The ties c-f enclose successively smaller proportions of the knot and may be differently coloured and may be marked so as to indicate the length enclosed.
Patent GB-954873-A (GB)
Title: Improvements relating to laminates
IPC: B32B27/00
Filed: 1962-05-03
Abstract: 954,873. Laminates. DOW CHEMICAL CO. May 3, 1962 [May 10, 1961], No. 16981/62. Heading B5N. Laminated sheets, particularly for use in packaging, comprise an oriented or unoriented sheet of an alkenyl aromatic polymer bonded to each side of a sheet of a polyolefin such as polythene or polypropylene. The alkenyl aromatic polymer is preferably polystyrene but may be a copolymer of styrene or a polymer or copolymer of α-methyl styrene, aryl-methyl or di-methyl styrene, or a mono- or di-chlorostyrene, including copolymers with vinylidene chloride or acrylonitrile, or with polyfunctional materials such as divinylbenzene, or graft copolymers with elastomeric polymers. The laminates may be prepared by hot-pressing between rollers a pair of polystyrene &c. sheets on either side of a freshly extruded sheet of polyolefin, or by superposing the constituent sheets, heating, and pressing between rollers or otherwise. An example describes the lamination of two 3 mil. oriented sheets of polystyrene to an extruded 2.3 mil. sheet of polythene, and the vacuum-forming of a single piece of the laminate into an integral box and lid in which the laminated material itself forms the hinge. The laminates are stated to combine transparency with toughness and flexibility.
Patent GB-407225-A (GB)
Title: A process for the production of potassium oxalate
IPC: C07C51/41
Filed: 1933-06-14
Abstract: Potassium oxalate is obtained in good yield from potassium formate by heating the latter to temperatures between 260 DEG  and 530 DEG  C. preferably 300 DEG --400 DEG  C., in presence of alkali hydroxide in greater quantities the lower the temperature, and maintaining the hydrogen partial pressure below its equilibrium pressure and preferably at 0--1 atmospheres absolute.  The said pressure may be continuously lowered by introducing inert gases such as nitrogen or other gases not containing oxygen, carbon monoxide, nitrous oxide or other oxidizing gases, through the presence of small quantities of such oxidizing gases may be neutralized by increasing the alkali content of the formate.  The formate is preferably introduced in a molten condition into the reaction vessel and diluents such as pre-formed potassium oxalate may be employed.  Examples are given in which a current of nitrogen, containing varying quantities of oxidizing impurities is introduced into the melt, and tables showing the variation in yield with decreasing hydrogen partial pressure and with increasing temperature are also given.