baber/WOPTO huggingface dataset:
Patent GB-678531-A (GB)
Title: Improvements in or relating to synchronising devices
IPC: G05D13/00
Filed: 1950-02-23
Abstract: 678,531. Fluid-pressure servomotor-control systems. NAAMLOOZE VENNOOTSCHAP KONINKLIJKE MAATSCHAPPIJ DE SCHELDE. Feb. 23, 1950 [Feb. 24, 1949], No. 4695/50. Class 135. In a device for synchronising two rotating elements of the kind comprising two ported rotary slide members 5, 6 fitting one inside the other and driven in the same direction by the respective rotating elements so that when a speed difference occurs the ports in the slide members come into register to permit the passage of pressure fluid to or from a hydraulic actuator which influences the speed of one or both of the rotating elements, a differential mechanism is provided in the transmission between one of the rotary slide members and the corresponding rotating element, the third or stationary member of the differential mechanism being adjustable to predetermine the phase relation between the elements. The rotating elements which may be the crankshafts of two internal combustion engines in a ship's propulsion installation drive shafts 8, 9 in opposite directions. The shafts 8, 9 drive pinions 10, 12 and 11, 13 respectively. The pinion 13 drives the internal sleeve 6 directly whilst the pinion 12 drives the outer sleeve 5 through a planetary gear 15, 16, 18 whereof the planet carrier 18 is formed with a bevel gear 42 adjustable by a bevel gear 43 operated by a handwheel 44. A further planetary gear 45, 46, 47 is arranged between the pinions 12, 13, its planet carrier having a bevel gear 48 geared to a pointer 51 which indicates the phase difference between the rotating elements and remains stationary when the elements are synchronised. The sleeves 5, 6 are journalled in a tubular housing 1 and are continuously supplied with oil under pressure through ports 25, 26 from an oil conduit 23. The inner sleeve 6 has a partition 20 dividing a pressure chamber 21 from an exhaust chamber 35. The outer sleeve 5 has two ports 31, 37 extending substantially over opposite halves of its circumference and co-operating with inclined ports 30, 36 respectively. A chamber 32 surrounding the ports 31, 37 leads through a connection 34 to a hydraulic actuator adapted to adjust the fuel supply of one of the engines. If the fuel supply of both engines is adjusted, the ports system 30, 31, 32, 34, 36, 37 is duplicated. The sleeve 6 may be adjusted axially by a handwheel 41.
Patent GB-585461-A (GB)
Title: Improvements relating to electron discharge devices for use at ultra-high frequencies
IPC: H01J19/80
Filed: 1943-03-23
Abstract: 585,461. Ultra-high-frequency apparatus. STANDARD TELEPHONES & CABLES, Ltd., and TAYLOR, F. H. March 23, 1943, No. 4747. [Class 40 (iii)] [Also in Group XXXVI] A resonance structure containing an electron discharge tube of the disc-seal type for use as an oscillation generator, or as an amplifier, comprises two resonance chambers 1, 2 of cylindrical form acting as the grid-cathode and grid-anode circuits, and the base 4 of the chamber 2 is ,provided with a tubular portion 9 through which the discharge tube 19 is inserted into a valve holder 25 within the chamber 1, the anode disc 20 being clamped against the flange of the portion 9 by the insertion of an inner tube 12 which is then closed by a cap 13. The flange 6 of the chamber 1, which rests on the end plate 3 of the chamber 2 with a layer of mica interposed to form an insulating condenser, is provided with contact springs 23 for engaging the cylindrical extension 22 of the grid-disc 21 of the discharge tube. A metal rod 14 carried by the valve holder 25 acts as an inductance and terminates in a plate 18 which with the adjustable end cap 5 of the chamber 1 forms a variable capacity for obtaining optimum positive feedback. The rod 14 is connected directly to the central valve socket and by way of plates forming filament byepass condensers to the side sockets, which are also connected through a choke coil of coaxial line to terminal members separated from the wall of the chamber 1 by strips of mica to form byepass condensers. A copper vane 26 in the chamber 2 may be turned by means of a shaft 29 to adjust the operating frequency. When the apparatus is used as an oscillation generator, a periodic frequency swing may be obtained by means of a second vane 28 which is rotated within a wind shield 27 by a motor-driven shaft 30. A metal member 28a coupling the vane to the shaft 30 has a length equal to twice its diameter in order to reduce leakage and so prevent modulation caused by the ball bearing. A rectangular loop (not shown) in the chamber 1 is secured to the central conductors of two coaxial lines 32, 33, one of which is connected to an aerial or other load while the other is short-circuited by an adjustable plate 33b operated by a shaft 33d. The position of the loop within the chamber 1 may be shifted by means of a further shaft in order to vary the amplitude of the generated oscillations. When the apparatus is used as an amplifier, the input would be applied to the loop mentioned above and an output loop would be provided in the chamber 2, the vane 28 being dispensed with. Specifications 585,447, 585,448, 585,450, 585,451, 588,452 and 585,455 are referred to,
Patent GB-795242-A (GB)
Title: Cages for ball or roller bearings
Inventor: SANVILLE FRANK EDWARD
IPC: F16C33/44
Filed: 1955-02-17
Abstract: 795,242. Making bearing cages. SPERRY GYROSCOPE CO., Ltd. Feb. 2, 1956 [Feb. 17, 1955], No. 4799/55. Class 83 (2). [Also in Group XXXIV] A method of manufacturing a cage for ball or roller bearing comprises machining the cage from sintered metal powder, e.g. bronze, impregnating the bearing surfaces with polytetrafluorethylene, machining said surfaces to provide a surface of metal and polytetrafluorethylene and etching away the surface layers of metal with an etching agent, e.g. dilute nitric acid, to leave pitted bearing surfaces of polytetrafluorethylene. In an embodiment the bronze cage is sintered from spheroidal powder of uniform size capable of passing a sieve of 100-200 B.S. mesh. After machining the cage is degreased and then washed in distilled water and vacuum dried. The cage is immersed in an aqueous suspension of polytetrafluorethylene in an evacuated vessel and the pressure raised to approximately 30 1bs./sq. inch and slowly released. The polytetrafluorethylene penetrates the sintered bronze to a depth of 0.030 to 0.040 inch. The cage is next drained of fluid and dried under vacuum and heated in an electric furnace to a temperature of 380‹ to 400‹ C. for 15 minutes to fuse the polytetrafluorethylene. The irregular but continuous film of polytetrafluorethylene on the bearing surfaces is removed by machining or scraping to produce a surface of polytetrafluorethylene and metal. Finally, the cage is degreased, washed in distilled water and etched in dilute nitric acid to remove the metal to a depth of about 0.001 inch to produce a honeycomb bearing surface of polytetrafluorethylene. Alternatively, the cage is made from a sintered compound of bronze powder and powdered polytetrafluorethylene.
Patent GB-578024-A (GB)
Title: Improvements in or relating to electrical coils
IPC: H01F41/12
Filed: 1944-03-15
Abstract: 578,024. Inductances. TELEPHONE MANUFACTURING CO., Ltd., and LOVESEY, H. March 15, 1944, No. 4832. [Classes 35 and 38 (ii)] [Also in Group V] Insulation 5 is applied to the external surface of a coil by a moulding process. The insulation so applied may be extended to cover the flanges of the winding spool 1, and the latter may be moulded of the same material which may be polyethylene or a copolymer of polyethylene and polystyrene.
Patent GB-417559-A (GB)
Title: Improvements in or relating to a process of spreading aqueous dispersions of or containing rubber or the like
IPC: B29C70/68
Filed: 1934-02-14
Abstract: 417,559. Coating webs. McKAY, R. F., Fort Dunlop, Birmingham.-(International Latex Processes, Ltd. ; 10, Lefebvre Street, St. Peter's Port, Guernsey.) Feb. 14, 1934, No. 4854. [Class 140.] In spreading aqueous dispersions of rubber on travelling sheet material, the dispersion is formed into spaced ridges by a spreading device provided with an edge composed of a number of doctor surfaces and grooves, the ridges subsequently flowing together to form a uniform liquid film, which may then be coagulated. The sheet material may be close-meshed fabric, fabric or rubberized fabric having a shellac or lacquered surface, or metal, from which the films may be stripped. The spreader bar is conveniently a threaded rod having the tops of the threads filed off. The sheet 7 is led, preferably under tension, under the spreader bar 1, the rubber dispersion being supplied from a reservoir 8 to form a bank 9 confined at the sides by members 10. After coating the sheet is passed through a drier 11.
Patent GB-102314-A (GB)
Title: Improvements in Hand Trucks.
Inventor: WEBB HAROLD
IPC: B62B5/02
Filed: 1916-04-03
Abstract: 102,314. Webb, H. April 3, 1916. Hand-trucks of the kind which run upon a single pair of wheels 2 at one end of the body have an auxiliary pair of wheels 3 to assist the mounting of kerbs or floors of a higher level. The axle 8 of the wheels 3 is preferably adjustable along the truck according to the height of the kerb, and also so that these wheels may serve to support the truck in a substantially horizontal position for loading. For this purpose, the axle 8 bears upon fixed longitudinal bars 15 and carries also guide angle-plates 17 engaging the bars 15 Adjustment is effected by a bar 10 with handle 11 bolted to the axle and passing through a fixed end bracket 12.
Patent GB-453650-A (GB)
Title: Improvements in or relating to exhaust ventilating hoods for industrial purposes
IPC: B08B15/02
Filed: 1935-02-15
Abstract: 453,650. Ventilating-hoods. ANGUS, T. C., Banks, Lambourne End, Essex. Feb. 15, 1935, No. 4907. [Class 8 (ii)] [See also Group XI] An exhaust ventilating-hood for industrial purposes is provided with one or more electric lamps in holders so positioned as to direct light intc the vicinity of the inlet of the hood In one form, Fig. 3, the hood 11 has a lower horizontal flange 15 and a connection 17 to an exhaust fan and houses a lamp casing 19 which is suspended from the upper wall of the hood. In a modified form, Fig. 4, the flanges 15 are provided at the sides of the hood only and the hood and casing have a common wall at each end. The main part of the hood has an extension 29 hinged at 30 and forming a ventilating air passage continuous with one of the marginal ventilating spaces between the sides of the hood and the lamp casing. In a further modification, Fig. 7, the transparent closure 33 of the lamp casing form a part of the wall of the hood, a reflector 36 being arranged to direct light on to the work.
Patent GB-925966-A (GB)
Title: Rolling non-ferrous metals
Inventor: SCHIERMEIER KNAPEL FREDERICK
IPC: C10M111/02
Filed: 1962-02-08
Abstract: In a process for rolling non-ferrous metals a coolant and lubricant are applied separately and the lubricant comprises a major part of a nonemulsifiable mineral oil substantially free of aromatics, and a minor part of an unsaturated C12-22 fatty acid.  The fatty acid comprises from 10-40%, by weight of the lubricant, and the mineral oil viscosity is from 40-100, SSU at 37,8 DEG C.  An example of a lubricant composition is; mineral oil (40 SSU)+30% oleic acid+ 0,1% oil soluble trialkyl mono- or bis-phenol.
Patent GB-720200-A (GB)
Title: Improvements in or relating to electrical gramophones, radio gramophones and like sound reproducing apparatus
Inventor: LEIGHTON JOHN
IPC: G11B33/02
Filed: 1952-02-26
Abstract: 720,200. Gramophone cabinets. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 12, 1953 [Feb. 26, 1952], No. 4941/52. Class 40 (2) [Also in Group XL(c)] In an electrically reproducing gramophone, the  turntable unit is carried by a withdrawable sliding member having resilient support means. The motor plate 26 is mounted on resilient insulators 35 on a deck 33, which is in turn mounted resiliently on springs 45 carried by brackets 42 on a withdrawable box-like frame 40 mounted on ball-bearing slides of a known kind, said slides being supported on resilient pillars 56. The cabinet comprises four compartments 13, 14, 15, 16 containing, respectively, the turntable unit, a radio set and amplifier, storage space for records, and a loudspeaker.
Patent GB-700895-A (GB)
Title: A device for the distribution of compressed air to an air-blast electric circuit-breaker and its isolator
Inventor: ALBERT VIBOUD
IPC: H01H33/32
Filed: 1952-02-26
Abstract: 700,895. Air-blast switches. ETABLISSEMENTS MERLIN & GERIN SOC. ANON. Feb. 26, 1952 [April 4, 1951], No. 4985/52. Class 38(5) [Also in Group XXIX] In a valve arrangement to control the admission of the air blast to an air-blast circuit-breaker for arc extinction and compressed air to the operating motor of the isolator of the circuit-breaker in timed relationship, a trip coil 16 is energized to open a pilot valve 15. Compressed air then flows from an auxiliary reservoir 13, through a pipe 11, a channel 28 in a slide-valve 8, and a port 20 into a cylinder 5. A piston 4 is then forced down to open the main blast valve 2 and compressed air flows from a main reservoir 1 through pipe 3 to the arc-extinguishing chambers of the circuit-breaker (not shown). When the piston 4 has moved through a distance sufficient to ensure an adequate supply of air for arc-extinction, it uncovers a port 27 and compressed air flows from the cylinder 5 into a passage 24 in the valve 8. The pressure acting on the valve 8 initiates its movement to the left against the bias of a spring 9 and as soon as a channel 29 comes into partial alignment with the pipe 11, compressed air flows directly into the passage 24 from the auxiliary reservoir 13. This compressed air flows through the pipe 10 to the motor of the isolating switch (not shown) and forces the valve 8 to complete its travel to the left, where the channel 29 is in full alignment with the pipe 11 and the channel 28 is in alignment with ports 19, 21, through which,the cylinder 5 is vented to atmosphere. The pressure in the reservoir 1 closes the valve 2 and restores the piston 4, the air blast ceasing. When the isolating switch has completed its opening movement, it operates a limit switch (not shown) to open the circuit of the coil 16. The valve 15 closes and the spring 9 returns the valve 8 to its original position, the supply to the motor of the isolator ceasing.
Patent GB-568511-A (GB)
Title: Improvements in and relating to the removal of slag from furnaces
IPC: F23J1/00
Filed: 1943-03-27
Abstract: 568,511. Removing slag from furnaces. AKT.-GES. BROWN, BOVERI, & CIE. March 27, 1943, No. 5001. Convention date, April 16, 1942. [Class 51 (i)] In furnaces burning pulverulent slag-forming fuel, particularly of the pressure-fired type, wherein all or the main portion of the slag is carried in suspension from the combustion chamber by the hot gases and passed through a heat exchanger forming a main part of the heating surfaces receiving heat from the gases and cooled in the heat exchanger to approximately the temperature of solidification, the gases flow parallel to the heating surfaces and at a velocity of at least 100 metres per second. As shown in Fig. 1, pulverized fuel is fed by a burner 1 into a combustion chamber 4 lined with water tubes 5. Combustion products carry slag at high velocity through the tubes of the heat exchanger 10 in which the slag is cooled and deposited in the chamber 11 from which it is removed by a screw conveyer 17. Any slag which runs down the walls of the combustion chamber passes through an opening 19 into a receiver 20. The gases leave the chamber 11 and pass through an evaporator 14 to a superheater 15. The gases pass from the superheater to an exhaust gas turbine driving a blower for supplying air for combustion. Fig. 2 shows a scraper rod 25 for removing deposits from the top of the heat exchanger 10. The rod may be hollow for the passage of steam, air or water supplied by a pipe 29 to effect removal of the slag.
Patent GB-103570-A (GB)
Title: Improvements in Attaching Covers for Pneumatic Tyres to Wheels.
IPC: B60C27/16
Filed: 1916-04-05
Abstract: 103,570. Armstrong, Whitworth, & Co., Sir W. G., and Beveridge, G. April 5, 1916. Tyre attachments to rims.-A continuous tread band a, which may be part of a worn outer cover, is fitted with hooks b for attachment to side chains f, which are connected to brackets d clamped to the spokes e. In a modification, the chains may be hooked together around the rim.
Patent GB-832253-A (GB)
Title: Improvements in apparatus for cleaning gas-swept surfaces of heat exchange means
IPC: F28G3/16
Filed: 1957-02-14
Abstract: 832,253. Pneumatic separation. BABCOCK & WILCOX Ltd. Feb. 14, 1957 [Feb. 15, 1956], No. 5046/57. Class 117 [Also in Group XXVIII] An elutriator 30 for separating foreign particle material such as ash from steel pellets used in heatexchanger cleaning apparatus, comprises a pipe 33 provided with horizontally spaced, vertical plates 34, 35 which form a flow path for the pellets, and horizontally disposed plates 39, 45 extending between the wall of the pipe and the plates 34, 35; access to the interior of the elutriator is afforded by a removable section 36 of the plate 34. Air or other gas under pressure, supplied by way of a pipe 47, passes beneath the plate 35 and upwardly between the plates 34, 35 to entrain particles of material and keep the pellets substantially clean. Specifications 726,244, 727,708 and 832,254 are referred to.
Patent GB-323673-A (GB)
Title: Improvements in bar bending machines
IPC: B21D11/12
Filed: 1929-02-14
Abstract: 323,673. Brader, G. B., and Gabe, B. Feb. 14, 1929. Angular bending.-In a machine for bending bars, particularly for forming the crooked ends of bars for ferro-conerete, of the type in which the bending element is carried by a disc rotatable round a fixed pin former, the bending element is mounted on an annulus rotatable about a fixed central table carrying the fixed pin and over the flat face of which the bar is held. The annulus 2 carrying the bending member 32<a> is recessed to rotate round a shouldered table 4 which carries the removable pin former 26 and reaction pin 27 and which is angularly adjustable on the plate 3 by bolts 4<e>, 4f and curved slots. The bending member consists off a pivoted arm engaging an abutment 33 or removable pins so that it may be swung out of contact with the pin 27 so as to allow the annulus to be reset without reversing the rotation. The rotation of the annulus may however be reversed for re-setting purposes and in this form rotation is effected by oppositely rotated friction pinions 11, 12 engaging grooves in the periphery of the annulus and rotated by bevel gear 16, 18, 17, 19 from a shaft 20 geared to a driving shaft driven by a motor on the wheeled base of the machine. The shafts 13, 14 of the pinions are mounted in eccentric sleeves 13a, 14<a> controlled independently by handles 13b, 13<c> or simultaneously by link and lever mechanism to bring either of the pinions into engagement with the annulus. One or a series of bars 28<a> - - 28<d> are secured in a vice 29, 30 on the framing and rest on a wood block 36. According to the Provisional Specification, the pivoted bending arm may be pushed against the work by a second pivoted arm, and reversing of the annulus may be effected by a second friction-pinion geared to one of the other pinions and carried by an arm extending from the eccentric sleeve so that either pinion may be made to gear with the annulus.
Patent GB-843218-A (GB)
Title: Production of pregnadienes
IPC: C12P33/00
Filed: 1955-08-03
Abstract: An 11-hydroxylated derivative of 1,4-pregnadiene-17 a ,21-diol-3,20-dione or a 21-acyloxy ester thereof is prepared by subjecting 1,4-pregnadiene-17 a ,21-diol-3,20-dione or a 21-acyloxy ester thereof to the action of an enzyme of a micro-organism known to be capable of 11-hydroxylating a pregnene compound which is saturated and unsubstituted at the 11-position. The process may include an additional step of oxidising the resulting 11-hydroxy compound in the form of its 21-acloxy ester to an 11-keto compound.  1,4-Pregnadienes containing a 21-ester group prepared by the above process may be hydrolysed to the free 21-hydroxy compounds.  The pregnadiene may be 11 a -hydroxylated e.g. by the action of any one of the micro-organisms Rhizopus urrhizus, R. delmar, R. nigricans, R. reflexus, Aspergillus niger or Phycomycers blakesleeanus, or may be 11b -hydroxylated e.g. by the action of the micro-organism Cunninghanella blakesleena or Curvularia lunata.  A suitable 21-acyloxy ester is the 21-acetate but the acyloxy group may also be derived from propionic, butyric, valeric or succinic acid, or an aromatic acid such as benzoic, salicylic phthalic or veratric acid. The oxidation &c., may be carried out with chromic acid in pyridine. In the examples:-(1) 1,4-pregnadiene-11 a ,17 a ,21-triol-3,20-dione is prepared by the action of a culture of R. nigricans on 1,4-pregnadiene-17 a ,21-triol-3,20-dione, and is then acetylated to form the corresponding 21-acetate and the 21-acetate is oxidised and then hydrolysed to form 1-dehydrocortisone acetate and 1-dehydrocortisone respectively; (2) 1,4-pregnadiene-11 b ,17 a ,21-triol-3,20-dione is prepared by the action of a culture of C. lunata on 1,4-pregnadiene-17 a ,21-diol-3,20-dione and is oxidised as in (1).
Patent GB-918699-A (GB)
Title: Improvements in or relating to methods of winding inductance coils having two or more electrically symmetrical windings
IPC: H01F17/00
Filed: 1960-02-15
Abstract: 918,699. Inductances and transformers. TELEFONAKTIEBOLAGET L. M. ERICSSON. Feb. 15, 1960 [March 4, 1959], No. 5314/60. Class 38 (2). A coil for use in a ferrite pot core and having two or more electrically symmetrical windings wound about a straight axis has all the windings wound simultaneously so that equally dimensioned portions of the windings are disposed in each layer of the coil, any two adjacent portions in all layers being wound so as to progress in opposite axial directions of the coil and, in at least one layer, the windings, or adjacent windings, being wound axially towards each other and, on meeting, continuing each in the same direction in the next layer. Fig. 2 shows a coil with two branches and Fig. 3 a coil with four branches.