baber/WOPTO huggingface dataset:
Patent GB-639252-A (GB)
Title: Heat treatment of magnetic alloys containing iron
Inventor: RANDALL WALTER FREDERICK
IPC: C21D9/60
Filed: 1946-09-24
Abstract: 639,252. Annealing. TRANSFORMER STEELS, Ltd. Sept. 24, 1946, No. 28585. [Class 72] High magnetic permeability is developed in strip or wire of magnetic alloys containing iron by passing the wire or strip continuously through a narrow heating zone of high intensity alternating magnetic field to heat it to a temperature in excess of 1100‹C. As shown a strip, 6 of 3 per cent silicon steel .012-.032 inches thick from a coil 1 is passed under a pancake-shaped heating coil 3 and raised rapidly to a temperature of 1200-1350‹C, at which it is maintained for a very short time resulting in the expulsion of impurities and improvement in the magnetic properties. A shoe 4 prevents distortion of the strip during the heating temperature. A spiral coil through which the strip is passed may be used. Specification 366,523 is referred to.
Patent GB-243011-A (GB)
Title: Improvements in or relating to bogies for railway cars and the like
IPC: B61F5/30
Filed: 1925-11-13
Abstract: 243,011. Aktiebolaget Svenska Kullagerfabriken. Nov. 15, 1924, [Convention date]. Axle-trucks and bogies; springs, arrangement of, and mounting bodies on; axle-bearing guiding arrangements.-In a bogie 1, each pair of journal boxes 2 on one side of the car is directly connected to a beam 4 which is suspended from the boxes at pivots 5 which are below the axle centres of the boxes, and the beam supports the bogie by springs 3, a single self-adjusting bearing being provided in each journal box. The beam may comprise two bars 4 spaced apart with or without a guide member 7 rigid with a part of the bogie frame.
Patent GB-1000701-A (GB)
Title: Mineral-cutting picks
Inventor: DAVIS CHARLES HICKMAN
IPC: E21C35/18
Filed: 1960-08-18
Abstract: 1,000,701. Mineral-mining picks. COAL INDUSTRY (PATENTS) Ltd. Nov. 17, 1961 [Aug. 18, 1960], No. 28678/60. Heading E1F. The cutting extremity of a mineral-cutting pick is constituted by a hard metal insert 8 having a shank 9 extending into a bore in the body of the pick and being provided with a shoulder 12 extending laterally from the shank and abutting the body of the pick around the external end of the bore.
Patent GB-766142-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M69/00
Filed: 1954-10-05
Abstract: 766,142. Carburetters; materials for actuating. MELCHOIR, F. C. Oct. 5, 1954 [Oct. 8, 1953], No. 28682/54. Classes 7 (2) and 7 (3). In a carburetter having a pressure injection nozzle, a metering valve and a flow control valve for regulating the supply of fuel under pressure to the metering valve, the valve members are arranged in spaced relation in a common passage, one end of which passage opens into a chamber containing a first pressure responsive element actuated by dynamic pressure and venturi suction created by air in the intake, the first pressure responsive element being connected with the metering valve member and the other end of the common passage opens into a chamber containing a second pressure responsive element actuated by the pressure drop across the metering valve, the second responsive element being connected with the flow control valve member, the position of the common passage located between the two valve members being in regulated communication with the injection nozzle and a fuel supply passage. Fuel under pressure from a pump enters by a passage 40, and flows under control of valves 31, 42, to a nozzle 35. The valve 31 is operated by a diaphragm 27 which is acted upon on one side by the air entering the carburetter and transmitted thereto by a slot 26 and on the other side by venturi suction from boost venturis 12. The valve 42 is controlled by a diaphragm 36 acted on by the metered and unmetered fuel pressure from opposite sides of the valve 31. The valve 50 is operated by an aneroid capsule 48 responsive to temperature and pressure and located in a chamber 49 which is vented to the air intake scoop by means of static tubes. An aneroid capsule 52 is operated solely by absolute manifold pressure and operates a valve 54 which controls admission of a mixture of alcohol and water through a passage 55. A bleed passage 44 may be controlled by a plunger 65 by turning a plug 66. The passage disposes of any fuel condensate or minute leakage. In order to obtain enrichment of the mixture for idling the throttle linkage 9 may be provided with a cam which in the idling position forces the plunger 65 in to fully obstruct the bleed passage 44. The passage 63 is connected to the top of the fuel tank. The vapour pressure in the passage 34 thereby being cancelled out eliminating a variable which in the case of certain fuels such as propane and butane can amount to 100 to 200 lbs./sq. in. The housing of the carburetter may be a light metal casting. The invention is applicable to aircraft installations and to carburetters supplying furnaces.
Patent GB-865346-A (GB)
Title: Improvements relating to divan beds
Inventor: PEARSON GEORGE HAROLD
IPC: A47C17/26
Filed: 1958-09-06
Abstract: 865,346. Divans. SLUMBERLAND Ltd. Dec. 7, 1959 [Sept. 6, 1958], No. 28688/58. Class 52(3). In a divan bed or box ottoman, each end of the mattress supporting box lid is carried by a linkage which allows the lid to be raised and inclined either way for access to the box base from either side of the bed. As shown, each linkage is of parallelogram form and is guided by the engagement of pins 15, 16 in slots 17, 18 and pivot pin 14 in slot 21 of bar 19 which is secured to the inside of the end wall of the box base. The lid (not shown) is first raised and then tilted about pivot pin 25 so that either slot 34 or 35 engages a pin 33 on arm 27 or 28 respectively. A counterbalancing spring 36 is provided.
Patent GB-391695-A (GB)
Title: Improvements in or relating to air guns
IPC: F41B11/648
Filed: 1932-10-14
Abstract: 391,695. Air guns. SCHMEISSER, H., 5, Philosophenweg, Suhl, Thuringia, Germany. Oct. 14, 1932, No. 28760. [Class 119.] Relates to air guns having a barrel casing 1, Fig. 1, pivoted at 4 and connected to a rod 5 for cocking the spring-loaded piston 8, the rear end of the cocking rod having a tooth 5a for engaging the piston and being guided by a pin 7 in a slot 3b, and a snap-fastening device being provided for holding the barrel in the operative position tightly against the air cylinder 3. According to the invention, the snap fastening comprises two separate devices acting simultaneously, one comprising a blade spring 10, Fig. 1, or a spring-loaded lever 10, Fig. 7, having a bevelled hook 10a adapted to engage a recess in the barrel 2 or barrel casing 1, and the other comprising spring lugs 1a, Figs. 1 and 3 depending from the barrel casing 1 and adapted to snap into or over recesses or projections 5b on the cocking rod 5, the lugs 1a serving also for the hinge 6 between the barrel casing and the cocking rod. The blade or lever 10 also acts as a sight.
Patent GB-319777-A (GB)
Title: Improvements in or relating to moulding processes and moulds made thereby
IPC: B22C1/18
Filed: 1929-09-23
Abstract: 319,777. Durand, J. B. Sept. 29, 1928, [Convention date]. Mould and core materials comprise sand and Portland or other hydraulic cement with such quantity of water that the mixture will bind but does not become pasty. The mixture can be moulded without great pressure or ramming and hardens without stoving. The moulds may be treated with blackwash or painted with a thin plaster or cement such as the aluminous cement known as " ciment fondu." The old moulds are ground and used with more cement for making other moulds.
Patent GB-974144-A (GB)
Title: Improvements in gas filtering apparatus
Inventor: SWIFT PETER
IPC: B01D46/04
Filed: 1962-07-27
Abstract: 974,144. Filters. DUST CONTROL EQUIPMENT Ltd. July 18, 1963 [July 27, 1962], No. 28875/62. Heading BIT. A gas filtering apparatus comprises a casing 10 in which is housed a series of filter pads 14 each consisting of a flat, open-mouthed bag 20 of a permeable filtering medium housing a U- shaped frame 17 supporting a mesh 18 of intersecting straight lengths of wire 19, the frame 17 being integrally connected with a header 15 the outer portion 15b of which is substantially narrower than the thickness of the pad 14 and the inner portion 15a of which is of progressively increasing cross-sectional area, thus providing a constricted throat which provides a Venturi effect so that a substantial volume of reversed filtered gas is induced to flow into the header 15 at each jet-cleaning period. Coextensive with the flared mouth 15c of each constricted throat is a jet-pipe 27 of circular cross-section connected through a solenoid valve 31 with a manifold 30 supplying compressed gas for the jet-cleaning and provided with a series of apertures, e.g. nozzles 18 or aligned elongated apertures. The jet-pipes 27 may alternatively be pear-shaped or elliptical in cross-section with narrow inner sides provided with longitudinal series of spaced holes disposed in the flared mouths 15c, Fig. 6 (not shown). The mouth of each bag 20 is turned over to embrace an endless element 21 which is clamped between a peripheral flange 22 provided on the corresponding header 15 and opposed flat surfaces 23 of a slotted support structure 24 into which the filter pads 14 are inserted. Dust-laden gas enters an inlet 11 at the rear of the casing 10 and flows through the filter pads 14, the filtered gas leaving through an outlet 12 in the front of the casing 10. During the jet-cleaning periods, the valves 31 are opened and compressed gas is blown into the filter pads 14 to reverse the normal flow of gas and to induce a substantial volume of filtered gas to flow in the reverse direction past the jetpipes 27 into the headers 15. Dust removed from the filter pads 14 during the jet-cleaning is collected, as depicted on the extreme righthand side of Fig. 2, in a hopper 16 combined with the bottom of the casing 10. Reference has been directed by the Comptroller to Specification 914,187.
Patent GB-448080-A (GB)
Title: Improvements in or relating to electric clocks, time switches and the like
IPC: G04C15/00
Filed: 1935-10-19
Abstract: 448,080. Alternating-current motors. LANDIS & GYR AKT.-GES., 1, Hofstrasse, Zug, Switzerland. Oct. 19, 1935, No. 28898. Convention date, Nov. 24, 1934. [Class 35] [See also Group XVIII] In synchronousmotor driven clocks and time - switches having an auxiliary movement in reserve, the axially acting magnetic attraction of the motor system when current is on, moves the rotor 4 axially in one direction and when current fails, the return axial movement releases the auxiliary movement. A current-failure indicator may also be operated. With current flowing, the rotor spindle 5 is moved to the left and rocks a bell-crank 8 clockwise against spring 6 so as to lock the escapement 7 of the auxiliary movement. At current failure the parts assume the dotted positions and the escapement is freed.
Patent GB-218181-A (GB)
Title: Improvements in and relating to bush chairs
IPC: B62B1/00
Filed: 1923-11-17
Abstract: 218,181. Lageer, W. E. Nov. 17, 1923. Wheels and axles, arrangement of; shafts.-A hand-propelled vehicle of the nature of a jinricksha comprises a frame formed of tubular members connected and cross-connected by sleeve connectors such as 9, 11, Fig. 1, the members projecting forwardly to form shafts 2, 3. A cross-frame is provided so that the axle may have two wheels 42, 43 mounted thereon, or a centre wheel only when the vehicle is used on a narrow track in which case guiding handles 15 at the rear are provided. The axle is housed in a cross-frame comprising sleeves 17, 18, Fig. 2 the inner ends of which are connected by an arched portion in- 'tended to embrace the centre wheel when such is used. The outer wheels 42, 43, are mounted on the ends of the axle and are housed in arched portions 19 of the frame.
Patent GB-459963-A (GB)
Title: Improvements in or relating to television receivers and the like
IPC: H01J29/86
Filed: 1935-10-22
Abstract: 459,963. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ESPLEY, D. C., c/o General Electric Co., Ltd., Wembley, Middlesex. Oct. 22, 1935, No. 29143. [Class 39 (i)] A cathode-ray tube in a television receiver &c. has its cathode 2 at or near earth potential and its screen end is surrounded by an inner, conducting, electrostatic shield 5, at a positive potential relatively to earth, preferably at the potential of the most positive accelerating electrode 3, contact of the user with the shield 5 being prevented by an outer shield 6. The inner shield 5 is a carbon coating deposited on the envelope 1 of the tube from a colloidal solution and serves also to reduce reflections from the glass. The outer shield 6 may be of insulating material but is preferably an earthed metal case supporting the tube 1 on insulators 7 and brought round the inner shield 5 near the viewing surface 4.
Patent GB-174157-A (GB)
Title: Improvements in centrifugal governors for internal combustion and other engines
IPC: F02D31/00
Filed: 1920-10-15
Abstract: 174,157. Widdop Engine Co., Ltd., and Widdop, H. Oct. 15, 1920. Centrifugal governors; transmitting-mechanism. -A centrifugal governor for engines comprises a weighted arm 4 pivoted at a on an annular member 5, which surrounds the shaft and is pivoted at b near its periphery to the fly-wheel or other rotary part. A pin 4<a> on the end of the arm 4 engages a curved slot 5<a> in the member 5, the radius of curvature of the slot being different from the radius of the pin about the pivot a, so that, as the arm 4 moves outwards under centrifugal force, the pin 4<a> moves the member 5 about the pivot b, this movement being transmitted to the valve &c. of the engine by a sliding bar 10 carrying a roller 9 engaging the member 5. The movement of the arm 4 is opposed by an adjustable spring 6.
Patent GB-998816-A (GB)
Title: Improvements in or relating to time assignment speech interpolation systems and terminal equipment therefor
Inventor: MILNE FRANK ALEXANDER
IPC: H04J3/17
Filed: 1960-08-24
Abstract: 998,816. Speech detectors. POSTMASTERGENERAL. Aug. 2, 1961 [Aug. 24, 1960], No. 29278/60. Heading H4R. A control circuit for channel disconnect apparatus in a TAS1 system comprises a speech detector SD, whose output circuit R1, C1 gives an output which is constant during speech and decreases gradually thereafter; a parallel circuit AMP1 whose output circuit R2, C2 gives an output determined by the maximum amplitude of the speech signal and decays slowly thereafter; the two outputs being fed in opposition to a combining circuit VT1, VT2 to provide a control signal when the output of Rl, C1 exceeds that of R2, C2 by a predetermined amount. The time constant of R1, C1 is greater than the maximum desirable hang-over time. The time constant of R2, C2 is greater than the average " talk-spurt " time. It is seen that with a high level signal, the output from R2, C2 neutralizes that of R1, C1 quickly to shorten the hang-over time. However for low-level signals, which are more liable to suffer from clipping in a TAS 1 system the circuit allows a longer hang-over. A circuit VT3 may be provided for discharging C2 when the output is zero after the end of the talk-spurt. This prevents the operation of the circuit from depending on the amplitude of the previous talk-spurt. It also helps to prevent initial clipping since the output of R1, C1 is not initially opposed by any output from R2, C2. Specification 781,622 is referred to.
Patent GB-1037356-A (GB)
Title: Method of and apparatus for filling a device with a gas
Inventor: FIGGINS BERNARD FRANK
IPC: F17C13/02
Filed: 1964-07-17
Abstract: 1,037,356. Re-vaporization of liquefied gases. BRITISH OXYGEN CO. Ltd. July 9, 1965 [July 17, 1964], No. 29310/64. Heading F4P. A device, e.g. a vapour pressure thermometer is charged with a low boiling point gas, e.g. helium at a predetermined superatmospheric pressure by vaporizing liquid helium from a reservoir 31, Fig. 2 (not shown) connected to the device by ducts 30, 34 having a relief valve 33 and stop valves 35, 36; the reservoir 31 having been charged with liquid helium by first evacuating it then immersing it below the level of a surrounding body of liquid helium in a Dewar vessel 19, 20 heating said body of helium at a point just below the surface, allowing vapour from the gas space of vessel 19, 20 to traverse a valved duct 37, open valve 35 and ducts 34, 30 to enter reservoir 31 where the gaseous helium condenses and which reservoir is then isolated from said gas space by closing a valve 38 in duct 37, connected to the device through open valves 35, 36 and heated so as to vaporize at least part of the helium. Heating of reservoir 31 is effected by raising a sleeve 25 to which duct 30 is secured through the neck of vessel 19 so as to expose the reservoir to the gas space.
Patent GB-867036-A (GB)
Title: Improvements in or relating to pile table mechanisms for printing and like machines
IPC: B65H1/18
Filed: 1957-09-18
Abstract: 867,036. Feeding sheets. SCHNELLPRESSENFABRIK FRANKENTHAL ALBERT & CIE A.G. Sept. 18, 1957 [Sept. 18, 1956], No. 29329/57. Class 100(1) Pile tables:-In apparatus for raising or lowering a sheet pile quickly in a printing or like machine by motor-driven mechanism, the motor can be rotated in either direction when one of two switches 31, 32 is closed by a manuallyoperated lever 36 having two cams 37, 38 thereon, one for each switch, the switch box being provided with a safety projection 33 which prevents the cams operating both switches simultaneously. The lever 36 can be operated automatically to stop the motor by a feeler device 59, 60 when the motor has raised the top of the sheet pile 21 to the appropriate height for sheet separation, and also by an abutment screw 22 connected to the pile table support 18, and a stop member connected to one of the chains 14 moving the support 18, if the latter, in the absence of a pile, is raised beyond a certain limit. In addition to the motor, the pile table can be adjusted manually, and for normal sheet separating operations it is raised continuously by constant increments through a pawl and ratchet means driven from the printing machine. In Fig. 1, the switches 31, 32 and gear box 3 are shown swung out of their normal position to enable the connections to be shown more clearly. The pile table 20 is supported on rods carried by supports 18 slidable vertically on guides 17. The supports are connected to the chains 14 passing over sprockets 13 secured to a shaft 11 which is driven from a motor through a first worm gearing 10, 12, and a second worm gearing which drives the shaft 7 of the worm 10 through an over-running clutch 9 (not shown) controlled by the hand lever 36. The lever 36 is keyed to, but slidable along, a spindle 34 which is journalled in the gear box 3 and has secured thereto a bifurcated lever 39 adapted to control the clutch in the motor drive to the shaft 11. A bell-crank lever 40, 41 secured on the end of the spindle 34 has one arm 40 in alignment with the abutment screw 22 on the support 18 whereby when the pile table is raised too high the spindle 34 is rocked to throw out the clutch and open the motor switch 31 or 32. The other arm 41 of the bell-crank has pivoted thereto a rod 43 which passes through a swivel block on an arm 46 secured on a spindle 48. A compression spring 44 on the rod 43 forms a means for rocking the spindle 34 when the spindle 48 is rocked by the feeler 59, 60, or by a limit stop on a chain 14 engaging an arm 47 on the spindle 48, whereby the motor is stopped and the clutch disengaged. The spindle 48 is associated with a snap-over linkage which is arranged to lift the feeler end 60 clear of the top of the pile 21 to facilitate sheet separation, and holds the control spindle 34 in one of two definite positions. During sheet separation, the pile table 20 is raised by constant increments by a pawl and ratchet device on the end of the shaft 7.
Patent GB-293763-A (GB)
Abstract: 293,763. Goldschmidt Akt.-Ges., T. July 11, 1927, [Convention date]. Alkylene oxides are obtained by passing the chlorhydrin solution and an alkali or alkaline earth solution or suspension continuously through a still along a long path. In starting the operation a quantity of water is boiled in a still 1 having baffles 2 and steam pipes 3. Alkali or alkaline earth is supplied by a pipe 4 and chlorhydrin solution by a pipe 5. The chlorhydrin solution is preheated by the outflow of the still in a heat exchanger 7. The vapours from the still are led by a pipe 8 to a reflux condenser 9 and thence by a pipe 10 to a pre-cooler 11 for condensing the bulk of the steam, the uncondensed vapour passing by a pipe 13 to a cooler 14 in which the oxide is condensed to a liquid which is collected in a vessel 15. Vapours passing the cooler 14 are washed in a column 16 with chlorhydrin solution on its way to the still. A vacuum pump may be arranged between the coolers 11 and 14.
Patent GB-904394-A (GB)
Title: Steam and water separation apparatus for a sea water distillation plant
IPC: C02F1/04
Filed: 1960-08-25
Abstract: In a sea water evaporator comprising a boilerchamber B containing a heat-exchanger 22, the outlet 62 of the boiler chamber leads via a horizontal volute passageway 72 to a cylindrical chamber S wherein water-droplets are centrifugally separated from the wet stream, and the partially-dried steam passes through a wire-mesh pack 80, whereby further water-droplets are removed from the steam before it is discharged from the evaporator through conduit 86.  The pack is preferably formed from an elongated mat of fine cupro-nickel wire which is corrugated and rolled upon itself.  The discharge conduit 86 extends horizontally within the dome 20 of the <PICT:0904394/III/1> evaporator, the upper portion of the conduit having a series of openings 88 which communicate with the separating chamber S. This discharge conduit is designed to separate residual entrained water from the steam.  All the separated water collects in V-shaped annular sump P, on the upper surface of the frusto-conical top 58 of chamber B, and may be withdrawn through conduit 78.  The heat exchanger is of the known "corrugated basket" type, and is surrounded by a skirt 46.
Patent GB-1283633-A (GB)
Title: Method for dehydrogenation of paraffins
IPC: C07C5/48
Filed: 1970-06-17
Abstract: 1283633 Dehydrogenating paraffins ATLANTIC RICHFIELD CO 17 June 1970 [24 July 1969] 29479/70 Heading C5E Olefins are prepared by dehydrogenating C 2 -C 12  alkanes at 390-600 C. with O 2  in the presence of molten alkali metal hydroxide and aluminium or activated Al 2 O 3 , the volume ratio of alkane : O 2  being 1À8: 1 to 5 : 1. Preferably molten NaOH is used containing a small amount of Al or activated Al 2 O 3 . The oxygen may be in the form of air. Examples describe the dehydrogenation of propane.