baber/WOPTO huggingface dataset:
Patent GB-251310-A (GB)
Title: Improvements in or relating to the production of ferric oxide
IPC: C01G49/06
Filed: 1924-10-24
Abstract: 251,310. Neill, O. S. Oct. 24, 1924. Spray evaporators.-Ferric oxide suitable for use as a pigment or as a catalyst for the manufacture of ammonia, is obtained from liquors containing dissolved iron salts or suspended iron hydrate by atomizing the liquor into heated air or gas so as to obtain a dry powder which is then calcined. The liquor is admitted by a sprayer 2 into a chamber 1 which receives hot gases by an annular pipe 3, the gases being withdrawn by an outlet 5 in a pipe 4 by means of a fan (not shown). The dried material falls to the bottom of the chamber 1 and is discharged by a valved discharge 6 into a hopper 7 from which it is fed by a discharge 8 through a pipe 21 into the upper end of an inclined rotary retort 9, headed externally by gas burners 10 in a casing 11. Air is admitted by an inlet 17 and passes through a heat exchanger 13 and pipe 19 to the calciner 9 under the action of a fan 16 attached to a pipe 20 which opens well in advance of the pipe 21 so that the material becomes heated before it encounters the air current. The material is carried up by ribs 2 and dropped through the stream of air, the calcined product being collected in a hopper 23. The hot gases from the casing 11 pass out through an outlet 12 to the heat-exchanger 13 and pipe 14 to the drying apparatus 1, air being admitted by a valve 15. If necessary some of the hot gases from the casing 11 may be by-passed direct to the apparatus 1.
Patent GB-498340-A (GB)
Title: Improvements in or relating to piezo-electric crystal holders
IPC: H03H9/09
Filed: 1937-09-18
Abstract: 498,340. Piezo-electric crystal mountings. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 18, 1937, No. 25393. Convention date, Oct. 31, 1936. [Class 40 (v)] A crystal-holder has a universal design such that it can be used for mountings of the pressure, air-gap or pressure-air-gap type of mounting, and can hold two crystals or a crystal and a thermostatic device. The base 12, Figs. 1 and 2, carries a metal plate 22, on the sides of which the crystal-mountings can be arranged, and three prongs 16, 18, 20 for making external connections ; the plate 22 is pierced with holes to facilitate attachment of the parts. On the left of Fig. 1 is shown a pressure-air-gap mounting, wherein a crystal 55 is gripped between risers at the corners of electrodes 54, 56. The assembly is pressed against the metal plate 22 by a spring 60 interposed between a retaining strip 58 and stud 62. Pressure is adjusted by flexing the strip 58. When a pressure mounting is desired, the electrode 56 is removed, Fig. 4 (not shown), so that the stud 62 presses directly on the crystal 55, and the electrode 54 is reversed so that an optically flat surface, which is its back surface as it is seen in Fig. 3, is pressed. against the crystal. When an air-gap mounting is desired, Figs. 6 ... 9 (not shown), pins for locating the edges of the crystal are inserted in the plate 22 and the crystal rests freely on the plate ; an upper electrode, spaced away from the crystal, is held in position by screws, springs and spacers. A thermostatic unit comprising a coil in a metal casing 24 and a snap-action bimetallic disc 42 may be provided, or it may be replaced by a second crystal assembly. The external connections for two crystals, or one crystal and the thermostat, are provided by three prongs 16, 18, 20, and the plate 22 is drilled with holes so arranged that it is universally adapted for the various mountings described above.
Patent GB-939195-A (GB)
Title: Wire-spoked wheel for tubeless tyres
IPC: B60B21/06
Filed: 1961-07-13
Abstract: 939,195. Wire-spoked wheel rims. FICHTEL & SACHS A.G. July 13, 1961 [July 21, 1960], No. 25400/61. Class 144 (2). A wire-spoked wheel rim for use with tubeless tyres comprises a radially outer flanged gas-tight tyre-seating ring 2, 11 and a radially inner ring 5, 9, which receives and anchors the outer ends of the spokes 4, the two rings being concentrically united, as by pressing, shrinking and/or adhesives, after the inner ring has been spoked. The inner ring may be of V-section, Fig. 5, with axially outwardly extending flanges 10, or of U- section, Fig. 6, with axially inwardly extending flanges 26, the flanges 10, 26 providing a cylindrical surface to engage the cylindrical underside of the outer ring 2, 11. Relative axial movement between the two rings after assembly may be prevented by deforming the flanges 10 to embrace the outer ring edges 24, Fig. 5, or by deforming inner peripheral edge beads 12 on the outer ring into engagement with the inner ring sides, Fig. 6. Alternatively the outer ring of Fig. 6 may have a central inner peripheral rib to abut the facing edges of the inner ring flanges 26.
Patent GB-255434-A (GB)
Abstract: 255,434. Chemische Fabrik auf Actien, vorm. E. Schering, (Assignees of Frerichs, G.). July 16, 1925, [Convention date]. Pyrazolone-barbituric acid compounds. - Double compounds of dialkylbarbituric acids and 4-dimethylamino-1-phenyl-2:3-dimethyl-5-pyrazolone are prepared by melting the components together and cooling them, both operations being effected in an atmosphere of an inert gas, such as carbon dioxide, hydrogen and nitrogen. By the exclusion of air, colourless products are obtained. An example is given of the preparation of the pyrazolone compound of diethylbarbituric acid in a vessel through which carbon dioxide is passed before and during the melting and cooling operations,
Patent GB-241888-A (GB)
Title: Improvements in the manufacture of castings in permanent moulds
IPC: B22C9/06
Filed: 1925-10-13
Abstract: 241,888. Will, E., (Assignee of K÷nig, T.). Oct. 27, 1924, [Convention date]. Clamping and guiding moulds. - Permanent moulds for casting metals have their two parts connected by springs, or with weight or fluidcontrol or other yielding means and neither part rigidly connected to an actuating member. The Specification as open to inspection under Sect. 91 (3) (a) states also that the mould halves are maintained parallel by guides. This subjectmatter does not appear in the Specification as accepted.
Patent GB-410665-A (GB)
Title: Improvements in and relating to electric flat-irons
IPC: D06F75/38
Filed: 1933-09-15
Abstract: The pressing plate of an electric smoothing iron is formed from an alloy consisting of 87 per cent of aluminium, 9,25-10,75 per cent of copper, 0,9-1,5 per cent of iron and 0,15-0,35 per cent of magnesium.
Patent GB-1293786-A (GB)
Title: Stimulatory effect of organic acids in citric acid fermentation
IPC: C12P7/48
Filed: 1971-04-19
Abstract: 1293786 Citric acid PFIZER Inc 19 April 1971 [9 Dec 1970] 25682/71 Heading C2C Citric acid is prepared by aerobic fermentation of an aqueous carbohydrate containing medium using a citric acid accumulating strain of Candida in the presence of n-hexadecylcitric acid or trans-aconitic acid in a concentration of at least about 100 p.p.m. w./v. The use of Candida guilliermondii ATCL 9058 is exemplified together with many other strains. A molasses is the preferred carbohydrate source and nitrogen sources, minerals and vitamins may be present. Salts or derivatives of the tricarboxylic acids which may be converted to the free acids during the reaction may be used.
Patent GB-897371-A (GB)
Title: Improvements in or relating to counter circuits using bistable magnetic cores in conjunction with transistors
Inventor: WEBB HERBERT HENRY
IPC: H03K23/76
Filed: 1958-08-11
Abstract: 897,371. Magnetic core counters. RACAL ELECTRONICS Ltd. Aug. 11, 1959 [Aug. 11, 1958], No. 25689/58. Class 40 (9). [Also in Group XIX] Each stage of a reversible stepping register comprises a core which when carrying a bit is switched by an input so that a transistor T is switched on by voltage induced in winding L3 and the bit is passed to the right to set the next core with winding L1 if a rail A is held negative but is passed to the left to set the preceding core with a winding L4 if a rail B is held negative. A winding L2 is preferably provided on each core so that it is switched regeneratively by the transistor when triggered by the input. The input windings are not shown but are connected in series. If employed as a decade counter the input to a second decade is taken from an AND gate fed by the transistor of the last stage of the preceding decade and the rail A, or from an AND gate fed by the transistor of the first stage of the preceding decade and the rail B.
Patent GB-498181-A (GB)
Title: Fire resisting compositions for coating or impregnating textile materials
IPC: D06M11/56
Filed: 1937-09-23
Abstract: A fire-resisting composition, suitable for coating or impregnating textile material, comprises the following ingredients in the proportions, by weight, stated, viz.: white lead 57-73, boiled linseed oil 3,5-11, chlorinated rubber 6-10, solvent for chlorinated rubber 15 and upwards; 12-30 parts, by weight, of whiting may be added.  Specified solvents for the chlorinated rubber are benzol, carbon tetrachloride and trichlorethylene.
Patent GB-445516-A (GB)
Title: A locking device for motor cycles and the like
IPC: B62H1/00
Filed: 1935-09-18
Abstract: 445,516. Combination locks. LARSEN, G. E., and HANSEN, F. C., Elsinore, Denmark. Sept. 18, 1935, No. 25883. Convention date, Sept. 19, 1934. [Class 44] [See also Group XXXI] A combination lock for use on a cycle comprises an axle 2 which carries a pulley 3 and which is adapted to be turned by a key. The axle carries a disc 27 having notches engaged by a number of spring- controlled holders 28. Other holders 28<1> carry arms 29 which are adapted to depress pins 30 engaging holes in the disc 27. In order to release the lock, the holders 28<1> only are depressed and the axle 2 is pushed in by the key against the spring 31 and then turned. A tooth 32 on the disc 27 is thus released from a recess 33 and slides along a recess 35. When the axle is rotated in the opposite direction the tooth re-enters the recess 33 and closes the lock.
Patent GB-169715-A (GB)
Title: Improvements in combustion pumps
IPC: F04F1/16
Filed: 1921-09-30
Abstract: 169,715. F÷ttinger, H. Sept. 30, 1920, [Convention date]. Direct explosion apparatus.-In internal-combustion pumpa of the " Humphrey " or like type, the working cylinder is furnished with a loosely fitting cylindrical float and moving freely with the surface of the water, whereby spraying or splashing of the water is prevented. The float may be guided by rollers in the cylinder wall or may slide on a column 31, Fig. 3 and be balanced by a link 19 connected to a piston 23 working in a vacuum cylinder 24, or by other means. The inside of the float may be utilized for compressing air, gas, &c. the column 31 being fitted with a piston 30, and divided into two passages by a diaphragm 38. The piston may also be made as a divided chamber fitted with suction and pressure valves. The float may be balanced by restricting the air outlet from the space 32, above the piston 30. The vertical movement of the float may be limited by making the lower part of the chamber 1 of larger diameter. The float may be cushioned at the lower end of its movement by an air cushion in a tubular socket located in the head of the float and entering a recess in the top of the column 31. The float may be cushioned at its upper limit by the sleeve 17 covering the opening 31<a>. Spraying may be further prevented by forming the inside of the chamber 1 and the outside of the float 4 with grooves or ribs 50, 51. Auxiliary chambers may be formed in the wall of the working chamber 1 into which water is forced against the internal air pressure. The water in the chambers may be discharged through a valve and returned to the working chamber when the pressure drops.
Patent GB-224242-A (GB)
IPC: F01D17/14
Filed: 1924-10-30
Abstract: 224,242. Schmidt'sche Heissdampf- Ges. Oct. 30, 1923, [Convention date]. Compound engines. - In multistage turbines having interstage superheaters, the flow of steam from these spaces, when the main or emergency governor has closed the main valve, is prevented by throttle valves operated by one or other of the governors through mechanical connections or by pressure fluid relays. The throttle valves may be sliding partition or flap valves and may be connected to a piston such as 12, Fig. 4, which is subjected on one side to the steam pressure in the interstage conduit 1 which reaches it by the pipe 14. The other side is normally subjected to the same pressure passing by way of a small bore pipe 15, but when a valve 9 is opened by the governor, a pipe 16 connects the cylinder to the condenser and the pressure behind the piston closes the flap 17. The pipe 16 may be connected to the main inlet on the engine side of the main valve, so that when the latter is closed, pressure in the pipe 16 fails and the flap is shut. In another form high-pressure steam is admitted to move the piston and close the flap when the governor closes the main valve. The main governor and the emergency governor may operate control valves arranged in parallel so that either may cause the closing of the interstage throttles. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the application of the invention to turbines and other steam engines having any large interstage spaces. This subject-matter does not appear in the Specification as accepted.
Patent GB-1386254-A (GB)
Title: Method of manufacturing glass fibre-reinforced polyester composite panels
IPC: B29C70/00
Filed: 1972-06-02
Abstract: 1386254 Laminated panel MITSUBISHI GAS CHEMICAL CO Inc 2 June 1972 [7 June 1971] 25972/72 Heading B5N [Also in Division B2] A method of manufacturing a composite panel comprising a rigid substrate overlaid with a glass-fibre reinforced polyester resin comprises forming an assembly by superimposing a moulding compound comprising a mixture of an unsaturated polyester resin obtained by a polycondensation reaction between an unsaturated dicarboxylic acid or anhydride, e.g. maleic acid or anhydride or fumaric acid and a dihydric alcohol, e.g. ethylene, diethylene or 1 : 2 -propylene glycol with a copolymerizable monomer, e.g. styrene, vinyl toluene, chlorostyrene, an acrylate or a methacrylate, and glass fibres, directly on at least one surface of the substrate and hot-pressing the assembly. The moulding compound, which may be in sheet or bulk form is defined as being a solid non-tacky uncured material containing the unsaturated polyester resin, the polymerizable monomer, glass fibres and the necessary additives, e.g. catalyst, filler, mould release agent and thickener, many of which are specified to give a cured polyester resin when the compound is subjected to heat and pressure. The polyester may also contain residues of a saturated or aromatic dicarboxylic acid, e.g. adipic or isophthalic acid or phthalic anhydride and/or of 1 : 3-butane diol or 2 : 2- dimethyl-1 : 3-propane diol. The glass fibre may be in the form of chopped strands, chopped strand mat or woven cloth. The rigid substrate may be of plywood having a core of veneer, lumber, particle board, fibreboard, paperboard, a paper or aluminium honeycomb or a cellular synthetic resin; particle board may also be used. In the examples, laminates are produced in a heated press from plywood interposed between two sheets of the moulding compound and a particle board interposed between two masses of a bulk moulding compound.
Patent GB-1194292-A (GB)
Title: Saturated Proportional Fluid Amplifier Device
IPC: F15C1/14
Filed: 1968-05-31
Abstract: 1,194,292. Pure fluid amplifiers. CORNING GLASS WORKS. May 31, 1968 [May 31, 1967], No.26136/68. Heading G3H. A saturable fluid amplifier comprises a first proportional amplifier 36 fed at 40 with the pressure signal to be amplified and at 42 with a fixed bias pressure, and a second proportional amplifier 48 fed at 54 with the output from leg 44 and at 52 with a second fixed bias pressure, the arrangement being such that the pressure at control orifice 54 varies inversely with the signal pressure at orifice 40, but should the signal pressure continue to rise beyond the point where the pressure at orifice 54 is zero the pressure differential at outputs 56, 58 remains constant. The Specification discusses in detail why prior art non-saturable amplifiers produce negative gain on overload. As shown a common pressure source 68 is connected directly to power jets 38, 50, and via fluid resistors 70, 72 to bias control orifices 42, 52, but according to a modification Fig. 6 (not shown) each is fed from a separate pressure source.
Patent GB-454049-A (GB)
Title: Improvements in or relating to the manufacture of plural-ply woven fabric
IPC: D03D11/00
Filed: 1935-09-20
Abstract: 454,049. Multi-ply fabrics. PFERDMENGES, H., Giesenkirchen, near Rheydt, Germany. Sept. 20, 1935, No. 26151. [Class 142 (iv)] In fabrics with one or more closely-woven plies of thin threads and at least one ply of widely-spaced relatively-thick threads as described for example, in Specification 423,428, the thick threads are made from pre-shrunk fibres, whereby puckering of the fabric on wetting is prevented. The shrinking may be effected by wetting the yarn and then treating it for 2 minutes at 15‹ C. under slight or no tension with caustic soda solution of 35‹ BÚ., neutralizing with acid, washing and drying. The thick thread ply maycomprise threads extending in one direction passing over all the threads extending in the other direction, binding-threads engaging the overlying threads. The thick threads may be in spaced groups.
Patent GB-534937-A (GB)
Title: Improvements in and relating to hydraulically operated machine tools
IPC: B23B31/30
Filed: 1939-09-20
Abstract: 534,937. Hydraulic machines, reducing- valves. TOWLER, J. M., and TOWLER, F. H. Sept. 20, 1939, Nos. 26244 and 31364. [Classes 69 (ii) and 135] A piston b effects the traverse of a machine tool or of its work, and itself receives motion from liquid supplied through a pipe e to a branch pipe d leading to one side, and through a valve f and pipe g to the other side in one position of the. valve, while in the other position the pipe g is connected to an exhaust pipe i leading to a meter or choke such as a helical passage of adjustable length. Between the pipe i and the choke a pressure-regulating valve j is provided comprising a hollow ported piston coacting with an inlet annulus q and adjustable by a spring l. Specifications 534,943 and 536,654 are referred to.
Patent GB-1300638-A (GB)
Title: Programmers for domestic machines
Inventor: JULLIEN-DAVIN JEAN
IPC: D06F34/28
Filed: 1970-06-01
Abstract: 1300638 Time switches CROUZET 1 June 1970 [ June 1969 8 Sept 1969] 26274/70 Heading H1N A stepping cam programmer for a washing machine having a two-position movable member which respectively inhibits and allows stepping advance of the cams is characterized in that a temperature-responsive capsule is mechanically coupled to the movable member such that its slow deformation of small amplitude stores energy which suddenly actuates the said movable member at a selected temperature. The movable member 1 controls a stepping pawl (not shown) as in Specification 1,210,688 by obturating and uncovering a recess 3b in a circular track 3a, and replaces the electromagnetically actuated member of the prior Specification. Capsule 7 acts on lever 6 to store energy in a spring blade or wire 9 coupling it to a lug 4a integral with member 1. At the selected temperature, which is set by adjustment of the pivot 6c, an extension 6a of lever 6 acts on a latch 5 to release lug 4a from a recess 5a and allow spring 9 to snap member 1 to the position shown dotted wherein stepping advance of the cams is restored. A cam 2 acting on follower 1a determines at what points in the programme the recess 3b is covered and stepping ceases until restored by capsule 7. The temperature at which the stepping is resumed may be set by means of member 8 which is pivoted at 8a and carries the pivot 6c and has an indicator 8b co-operating with scale 8<SP>1</SP>. Alternatively, the member 8 may be replaced by an elongated member (18, Fig. 3, not shown) having a follower arm acted on by a cam (2a) such that the temperature is set automatically as part of the programme.
Patent GB-168784-A (GB)
Title: Improvements in parachutes
IPC: B64D17/38
Filed: 1920-09-14
Abstract: 168,784. Hensley, O. Sept. 14, 1920. Parachutes. - The rigging lines and the parachutist's life-line are connected by an attachment consisting of two discs 4, 5, the upper one 4 having radiating lugs 8 for the reception of the rigging line rings 10, and the lower one 5 acting as a keeper and being held in position by a bolt 6 provided with an eye 11 for the life-line.
Patent GB-848574-A (GB)
Title: Improvements in and relating to electric circuit breakers
Filed: 1957-08-21
Abstract: 848,574. Automatic circuit - breakers. MECHANICAL PRODUCTS Inc. Aug. 21, 1957 [Sept. 5, 1956], No. 26366/57. Class 38 (5). A circuit-breaker has a contact-carrying member 39 pivoted at 41 on a plunger 17 and normally latched in the closed position by a bimetallic element 51 against the opening bias of a spring 47, the plunger being retained against the bias of a spring 23 in the " on " position by a latch 69, Fig. 1. In the event of an overload condition the bimetallic element 51 disengages from a shoulder 59 on the member 39 which pivots under the action of the spring 47 to open the contacts 15, 43. A rivet 65 on the member 39 then causes the latch 69 to turn about its pivot 71 and disengage from a shoulder 75 on the plunger 17 so that the plunger is forced down by the spring 23 to its " off " position, Fig. 3. Resetting is effected by pushing in the plunger whereon a cam 33 on the plunger initially moves the latch 69 away to permit movement of the plunger to the position in which the latch 69 is relatched with the shoulder 75 by the force of a spring 77. The inward movement of the plunger re-engages the shoulder 59 with the bimetallic element and then moves the member 39 to reclose the contacts. The plunger 17 is in two parts 19, 21 which are interconnected by a rivet and slot connection 37, 31 which provides lost motion between the two parts of the plunger. This enables the circuit-breaker to be opened manually by pulling the plunger outwardly so that the cam 33 which is on the part 21 moves the latch 69 to release the part 19 which is provided with the shoulder 75. The plunger is then moved outwardly by the spring 23 to open the contacts 15, 43.
Patent GB-948158-A (GB)
Title: A novel dithiophosphoric acid ester
Inventor: MELLES JOHAN LEO
IPC: C07F9/6553
Filed: 1960-07-29
Abstract: A thiophosphoric ester of probable formula: <FORM:0948158/C2/1> but which may have formula: <FORM:0948158/C2/2> is prepared by reacting a salt of O, O-dimethyl dithiophosphoric acid with a 3-halodihydrothiophene-1, 1-dioxide as prepared by the dehydrohalogenation of 3, 4-dihalotetrahydrothiophene -1, 1-dioxide, the halogen atoms being chlorine, bromine or iodine. An inert solvent may be used. Temperatures of room temperature or 35-100 DEG C. may be used. The product is an insecticide (see Division A5)ALSO:Insecticidal compositions comprise a thiophosphoric acid ester of probable formula <FORM:0948158/A5-A6/1> but which may have formula <FORM:0948158/A5-A6/2> (for preparation see Division C2). The compositions may be formulated as particles, dusts, granules, pellets, wettable powders, liquids, emulsions, aerosols or with resinous or waxy carriers such as coumarone resins, rosin, copal, shellac, dammar, polyvinyl chloride, polystyrene, polychlorophenol, bitumen, beeswax, mineral waxes and chlorinated mineral waxes. Fertilisers may be present and other insecticides, specifically D.D.T., aldrin and dieldrin.