baber/WOPTO huggingface dataset:
Patent GB-739372-A (GB)
Title: Method for the treatment of granular material or of gases
IPC: F26B17/14
Filed: 1951-02-14
Abstract: In a method of treating granular material with gases or gases with granular materials such as the oxidizing of ores, the burning or sintering of lime, gypsum, minerals, &c., gas addition reactions such as the addition of ammonia to phosphates, nitrogen to calcium carbide, or gas absorption processes such as the removal of carbon dioxide by granular calcium hydroxide, the material is passed downwardly in a deep layer over an inclined surface 3 with openings through which the gas is blown upwardly to flow through the material, the rate of <PICT:0739372/III/1> upward flow of the gas being sufficient to reduce the normal downward pressure of the granular material by at least 20 per cent without being sufficient to suspend the material.  The gas enters the chamber 1 by a pipe 9 and leaves by a pipe 10, the material enters through an aperture 2 and is discharged via pipe 7 having its outlet controlled by a flap 8 and the surface 3 may be vibrated.  In modifications the chamber has a number of inclined surfaces in series and may be divided into sections each individually supplied with gas so that the material can be treated on its path downwards with different gases.  In further modifications heat exchangers are provided within the chamber to supply or dissipate heat.  Material may also be dusted by powdered material borne by the gases.  Specifications 665,032, [Group XIII], and 697,204 are referred to.
Patent GB-850543-A (GB)
Title: Improvements in or relating to free-wheel arrangements
IPC: F16D41/07
Filed: 1958-02-04
Abstract: 850,543. Ratchet clutches. PADOVA, H. Jan. 23, 1959 [Feb. 4, 1958], No. 3630/58. Class 80 (2). A free-wheel comprises a roller bearing having inner and outer races 1, 2 and rollers 3 (not shown), some of which are replaced by non-circular section rollers 4 each of which is biased into jamming engagement with the races by a spring- loaded plunger 6 located in a bore in the roller 4 and bearing against a ring 7 which is freely rotatable in a groove in the 'inner race and the outer surface of which is flush with the race.
Patent GB-102654-A (GB)
Title: Improvements in Machines for Spooling Yarn or Thread.
IPC: B65H54/36
Filed: 1916-03-13
Abstract: 102,654. Dewhurst & Sons, J., and Preston, W. March 13, 1916. Thread-spooling machines.-The threadguide 1 is secured in a holder 3 mounted loosely on a carrier 5 secured to the usual traverse bar 7, and kept in position by collars 6, 21. The carrier 5 has also mounted upon it a boss 10 with an arm 11 engaging the guide lifter-rod 13, and a lever 20 to which is attached a cord 19 and a weight. The boss 10 has a projection 25 engaging an adjusting-screw 23 carried by the guideholder 3. Each guide is weighted independently and can be raised, if necessary, for piecing, and held in the raised position by a spring catch 24 engaging the projection 25. When the other spools are full, the guides are lifted for the ending operations, by the rod 13, and a pin 26 on the catch 24 engages a finger fixed to the carrier 5 and releases the catch, allowing the guides to fall ready to resume spooling. A threadholder 15 takes the end of the thread across the ending-hook 29, which takes it down into position between the spindle and the outside face of the bobbin 28 ready to start the next set. The starting ends are cut away by a knife 18 mounted on a rod 16.
Patent GB-286852-A (GB)
Title: Improvements in or relating to electric lamp holders
IPC: H01R33/46
Filed: 1927-02-09
Abstract: 286,852. Yates, F. W., and J. K. W. Manufacturing Co., Ltd. Feb. 9, 1927. Holders.-In holders of the kind wherein the terminal block c is pressed towards the cap of an inserted bulb by means of a spring a located in the upper part b of the casing, the lower end e of the spring is turned downwards and passed through a hole into the union ring j where it engages as a detent in notches in the ring to prevent its rotation. This prevents separation of the parts b, d of the casing by accidental vibration, and when a bulb is secured in the holder by a locking-device it prevents removal of the bulb by dismantling the holder. To assemble or dismantle the holder, the spring is first raised by inserting a plug when a bulb is absent.
Patent GB-1126293-A (GB)
Title: A gas cooker
IPC: F24C3/14
Filed: 1967-01-25
Abstract: 1,126,293. Liquefied gas cooker. RONSON CORP. 25 Jan., 1967 [25 Jan., 1966], No. 3839/67. Heading F4T. A gas cooker comprises an outer casing having a tray 14 slidably mounted therein which carries liquefied gas containers 18, 18<SP>1</SP> such that when the tray is pushed wholly within the casing at least one of the containers is automatically connected with a bush 20, the gas passing therefrom to a control unit 17 and burner 16. The ends of the containers remote from the bush 20 are biased by spring means attached to the tray, the spring means being shaped to engage containers of different sizes. The tray is held within the casing by means of a projection 32 on the tray which is engaged by two retaining springs 31. A pin connected to a knob 13 forces the springs 31 apart when the tray is to be released. Spring arms 34 force the tray from the casing on the tray being released.
Patent GB-195044-A (GB)
Title: Improvements in or relating to devices for actuating engine cam shafts
IPC: F01L1/02
Filed: 1923-02-08
Abstract: 195,044. Soc. Anon. des Anciens Etablissements Chenard et Walcker. March 18, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Valve-gear. - The gear wheel 1 drives the cam shaft 2 through resilient strips or pads 3 interposed between the wheel and a flange 4 on the shaft.
Patent GB-715086-A (GB)
Title: Improvements relating to separable joints
Inventor: HAWORTH LIONEL
IPC: F16L23/02
Filed: 1953-02-06
Abstract: 715,086. Securing parts to shafts. ROLLSROYCE, Ltd. Feb. 6 1953 [Feb. 13, 19521. No. 3890/52. Class 80 (2) [Also in Groups XXII, XXV, XXVI and XXXIV] A structure including parts 10, 11, Fig. 1, secured together by a separable joint, comprises a plurality of securing .elements 12 such as bolts, dowels &c. interconnecting the parts, each of the securing elements having an axial portion of which the cross-section 12a is substantially oval and engages in a circular aperture in at least one of the parts, the apertures which receive the oval portions having a diameter to fit the major axis of the said oval portions and the securing elements being located with respect to the parts so that the oval portions have their minor axes meeting substantially at a point, or on an axis, about which relative radial expansion of the parts tends to take place. The device is intended to provide a separable joint between parts which in use tend to expand or contract differentially about a focal point or axis, e.g. in gas turbine engines where two parts of differing material are interconnected and are subjected internally or externally.to a heated gas, so that owing to the different coefficients of thermal expansion of the materials, differential expansion tends to take place between the parts. As applied to securing a rotating labyrinth seal 90, Fig. 13, to a flange 91 on the end of a shaft 92 of a turbine rotor 93, bolts 94 are passed through circumferentially spaced holes in the members and have portions 95 of oval crosssection with their. minor axes extending through the axis of rotation of the rotating parts. The bolts 94 are formed with flats 94a co-operating with a flange extension on the flange 91.
Patent GB-1325037-A (GB)
Title: Motion picture viewer with removable cartridge
IPC: G03B35/24
Filed: 1970-09-17
Abstract: 1325037 Cine viewers F J L CORP 17 Sept 1970 [17 Oct 1969] 3907/73 Divided out of 1325034 Headings G2E and G2J The matter disclosed is identical with that of the Parent Specification Claim 1 relates to a cine viewer including a housing in which a film cartridge is removably mounted and in which an optical eye-piece is mounted, the cartridge having an aperture which may be aligned with the eyepiece, and having means to be exposed to light for supplying light to the film for viewing through the eye-piece and aperture, there being a sprocket driven by a member in the cartridge to reversibly feed the film, said member being driven by crank means on the housing.
Patent GB-138875-A (GB)
Title: An improved method of making roofing material
IPC: C08L95/00
Filed: 1920-02-09
Abstract: 138,875. Flintkote Co., (Assignees of Overbury, F. C.). Jan. 21, 1915, [Convention date]. Coating with adhesive and powdered materials. -Roofing-material is made by coating a length of fibrous material, such as felt, with a waterproof adhesive, such as asphalt &c., and embedding in the coating stripes of crushed mineral material so as to produce ornamental effects. Bands of differently coloured mineral material may be deposited between the stripes, and the roofing- material may be used in sheet form or cut up transversely into strips. Fig. 2 illustrates a machine for manufacturing the roofing-material. The sheet of felt &c. 10 is drawn through rolls 11 for applying the asphalt &c., and then passes under hoppers 12, 13, the former of which de. posits stripes of grit on the asphalt coating through a number of nozzles 14, and the latter deposit intervening bands of differently coloured grit. The felt then passes round pressure rollers 16 to embed the grit in the asphalt coating, and finally round cooling-rollers 17. By reciprocating the hoppers, many effects may be produced. Fig. 8 shows a method of laying the severed shingle strips, 18 representing the stripes and 19 the intervening bands.
Patent GB-1529966-A (GB)
Title: Method of manufacturing objects from powder
IPC: B22F3/12
Filed: 1976-02-02
Abstract: 1529966 Isostatic hot pressing ASEA AB 2 Feb 1976 [3 Feb 1975] 3941/76 Heading C7D [Also in Division B5] A powder preform 1, e.g. of silicon or boron nitride or a superalloy, is isostatically compacted at elevated temperature while it is embedded in a glass powder 4 within a glass capsule 3 which has been sealed at 6 after evacuation, the melting point of the glass powder being higher than that of the capsule. The preform 1 may be extended and part 2 machined to a smaller cross-section. A silicon or boron nitride preform I embedded in 96% silica or pure silica powder 4 in a borosilicate capsule 3 is heated to 550-600‹C when the capsule softens. A pressure of up to 300Pa is applied with argon gas and the heating is continued. At 900- 1000‹C the capsule 3 melts and flows inwardly through the powder 4, but a gas impermeable layer is preserved even at 1725‹C and pressures up to 300Pa.
Patent GB-480993-A (GB)
Title: Improvements in and relating to rotary vacuum pumps
IPC: F04C27/02
Filed: 1937-02-10
Abstract: 480,993. Rotary pumps. BANCROFT, F. E., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb. 10, 1937, No. 4004. [Class 110 (ii)] A vacuum pump of the.sliding-vane type has an outlet pipe 7 containing a non-return valve 12 sealed by oil to the level 10. Oil is fed to the pump chamber 2 by way of a passage 16 and ducts 17, 17<1>, the latter containing a regulator 18 having a helical thread on an adjustable spindle 18. A passage 20 connecting 16 and the tank 8, is controlled by a needle valve 21. An outlet passage 22 may lead into the tank 8 or may be connected to a backing pump sucking air out of the outlet 7. Where the same oil is being circulated continuously a plug 19<1> is removed. Where fresh oil is being supplied, the plug 19<1> would be inserted, and the pipe 23 lead to a waste tank. A tank 25 may supply separate oil through a non-return valve 26 and a pipe 27 leading to the passage 16. The oil in the tank 8 may be cooled or heated. According to the Provisional Specification a sight glass may be inserted in the pipe 27, and two spaced seals on the driving shaft prevent oil leakage outwards. Specifications 424,988 and 453,608 are referred to.
Patent GB-725165-A (GB)
Title: Dynamo-electric machines
IPC: H02K23/20
Filed: 1953-02-12
Abstract: 725,165. Exciting dynamo-electric machines. SOC. D'EXPLOITATION DE BREVETS. Feb. 12, 1953 [Feb. 14, 1952], No. 4005/53. Class 35. A D.C. generator is excited by field coils on adjacent poles of opposite polarity energized by armature circulating currents passing between brushes of like polarity. As shown for a four-pole machine, like poles X, Y and Z, Q are placed opposite one another and brushes 1, 2 and 3, 4 having like polarities are joined by connectors P, S, respectively, which carry the armature circulating currents and also connect to the load terminals 5, 6. The main four-pole flux is produced by field windings FP1, FS1, FP2 and FS2, these field windings being excited by armature circulating currents between brushes of like polarity caused by a lack of balance produced by a control winding on these poles. As shown, the control comprises a winding FC1 on one or both of poles X, T producing an out of balance flux #1 in the armature. The consequent circulating current I1 is taken through coils FP1 and FP2 on pole axes X and Q respectively. The field winding FP1 gives rise to a further flux unbalance on axis X-Y which serves to increase the circulating current I1. The field winding FP2 gives rise to a flux unbalance #2 in axis Z-Q which produces circulating current 12. This circulating current is used to energize windings FS1, FS2 on pole axes Z, Y respectively. Balance is achieved when the secondary circulating current 12 is sufficient to cause the fields FS1 and FS2 to prevent any further increase of both circulating currents. Preferably the windings on like poles excited by different circulating currents are made unequal so as to strengthen the effect of the control field. It is possible to control the machine on the Z-Q axis or on both axes at once by the use of suitable control windings on each pole. In order to eliminate the effect of load current on the field coils, these are centretapped for the connection to the load so that each section has an equal and opposite effect on the field. If desired, load compounding may be achieved by making the ratios unequal. Armature-reaction compensating coils NS1 and NP2 may be placed on the field poles to eliminate the demagnetizing effect of the circulating currents. Alternatively the armature-reactions may be used to contribute towards the excitation of the machine. In this arrangement, the primary circulating currents I1 and I2 excite windings on poles X and Z respectively while the armature reaction of these currents excites Z and Y respectively in the appropriate direction. The machine may be provided with a conventional self-exciting winding. Specifications 669,573 and 677,638 are referred to.
Patent GB-842535-A (GB)
Title: A device for sharpening an electric razor
IPC: B26B19/38
Filed: 1959-02-04
Abstract: 842,535. Sharpening electric razors. METSELAAR, J. M. Feb. 4, 1959 [Feb. 6, 1958], No. 4014/59. Class 60. A device for sharpening the blades and cooperating surface of the shearing head of an electric razor in which the blades are pressed elastically against the inner surface of the shearing head consists of thin member 1 provided on upper and lower surfaces with a grinding layer, 2, 3, the total thickness being such that the member can be inserted between the blades and the shearing head surfaces to be sharpened. For razors having a circular shearing head and revolving blades the member 1 is of ring form but if of the reciprocating blade type, in which the blade co-operates with a straight or curved shearing head, the member 1 may be of aluminium foil and sprung to shape if within a curved head or pre-formed and made somewhat longer than the reciprocating sweep of the blade portion. In either case the member 1 will be moved by the moving element relative to the fixed shearing head, to sharpen the cutting elements thereof.
Patent GB-980145-A (GB)
Title: Improvements relating to recreational apparatus
IPC: A63B25/10
Filed: 1963-01-31
Abstract: 980,145. Jumping aids. C. COLLARO. Dec. 23, 1963 [Jan. 31, 1963], No. 4052/63. Heading A6M. A jumping aid comprises a plate attachable to the sole of a shoe and a downwardly-directed helical spring attached thereto. In the embodiment described, two springs to each foot are attached to the plate comprising two parts 1 and 2 relatively adjustable by a pin and slot joint for adjusting to the size of the shoe of the wearer. The lower end of the springs are provided with a non-slip disc of polythene having a spigot which is a push-fit in the end coil of each spring.
Patent GB-1502444-A (GB)
Title: Waste water treatment apparatus
IPC: C02F3/12
Filed: 1976-01-30
Abstract: 1502444 Waste water treatment apparatus A JOHNSTON CONSTRUCTION CO Ltd 30 Jan 1976 [30 Jan 1975] 4068/75 Heading C1C A waste water treatment apparatus includes tanks arranged one inside another so as to form channels 17, 18, 19 between the tank walls 13, 14, 15, 16, each channel having a partition 21 extending across it and each tank wall having an opening 22, 23, 24, 25 adjacent a partition whereby waste water introduced into one of the channels flows along the channel until it encounters a partition, thereafter passing through the adjacent opening into a further channel, the waste water eventually being discharged from the last opening, and mechanical aeration means in the channels.
Patent GB-786610-A (GB)
Title: Improvements in oil filters
IPC: B01D35/14
Filed: 1956-02-09
Abstract: 786,610. Oil filters. DAIMLER-BENZ AKT.- GES. Feb. 9, 1956 [Feb. 9, 1955], No. 4108/56. Class 46.  In an oil filter comprising one or more inserted cylindrical filter elements through which oil flows inwardly and a by-pass relief valve of the plate or disc type, at least one radially directed duct is formed in an end wall of the framing of the element to communicate between the pressure space surrounding the element and an axial port &c. on the delivery side of the element, the port being normally closed by a plate &c. valve under spring pressure axially. The filter comprises three elements 2, 3, 4 mounted in a casing having transverse walls 1, 1<SP>1</SP>, 1<SP>11</SP>. The elements are coaxial, the elements 2, 3 being mounted on a sleeve 13 surrounding a pull rod 14 pivoted at 12 to the end frame 7 of the element 4. Each element consists of end frames spaced by a perforated cylinder 18 outside which is a filter screen 15, 16 or 17. The end frames 27, 28 of the elements 2, 3 are channelled annularly for half their depth at 29 and the channels connected by segmental ports 30, 31 to the exterior spaces about their associated filter screens. A spring pressed plate valve 25 normally closes each annular channel 29 but yields against excessive pressure when the associated filter screen is clogged, normal flow being inwards through the screen and away through apertures 22, 23 in the end covers 8, 9 of the elements. In the element 4, bolts 34 secure the end wall 11 to a deep end cover 10 which houses an annular plate valve 36 held closed by springs 37 around the bolts 34 to act similarly to the valves 29. To clean the filter, the elements 2, 3 are freed by removing a circlip 33 and slid off the sleeve 13 ; the element 4 is then pulled clear by the rod 14.
Patent GB-124029-A (GB)
Title: Pneumatic Cleaning Machines.
IPC: A47L5/28
Filed: 1918-03-08
Abstract: 124,029. Marks, E. C. R., (Firth, W.). March 8, 1918. Vacuum and like cleaning-apparatus. -Pneumatic cleaning-apparatus of the kind described in Specification 111,998 and specially applicable for cleaning the floors of sheds containing textile machinery arranged along aisles comprises a frame 5, Fig. 1, mounted en wheels 6, 7 and provided at its front part with a suction mouthpiece 10 which communicates through pipes 9, 11 with a fan chamber 8 and a dust receptacle 12 provided at its lower portion with an air chamber 18 having diverging air outlets 19, 20, Fig. 2, to direct currents of air against the wheels 6 and outwards from the sides of the apparatus respectively, The pipe 11 is mounted to swivel on a collar on the top of the chamber 8 and may be removed to afford access to the chamber. A slidable damper 17 controls the passage of air from the receptacle 12, which contains a dust bag, &c., through an opening 16 to the chamber 18, and when the damper is closed the air escapes from the receptacle 12 through an opening 14 provided with a door 15. A damper 21 mounted in the chamber 18 on a rod 22 may be turned to close the outlets on either side of the apparatus or may be positioned midway between them. The apparatus is moved along an aisle to draw dust, lint, &c., from the floor and blow dust and lint from the wheels 6 and front beneath the textile machines at one or both sides of the aisle.
Patent GB-669057-A (GB)
Title: Improvements in or relating to methods of purifying crude phthalic anhydride
IPC: C07C51/573
Filed: 1949-02-16
Abstract: Phthalic anhydride is obtained from crude phthalic anhydride by heating said crude anhydride with at least 0.0001 mol. of said anhydride of an alkali-metal nitrate at a temperature above 250 DEG C. without substantial loss of phthalic anhydride vapour, and then separating phthalic anhydride from said mixture in purified form. The crude phthalic anhydride may be obtained from the vapour phase catalytic oxidation of naphthalene.  The crude anhydride can be distilled prior to mixing it with the alkali metal nitrate.  The heating may be carried out at a temperature above 275 DEG  C. but not substantially in excess of the boiling-point of phthalic anhydride at atmospheric pressure, and the heating period may be sufficiently long to remove odour and colour impurities from the phthalic anhydride, e.g. for a period of 0.5 to 5 hours.  The phthalic anhydride can be separated from the treated mixture by distillation, e.g. at an absolute pressure below 500 mm.  The quantity of alkali metal nitrate per mol. of phthalic anhydride may be from 0.0001 to 0.08 mol. Alkali metal nitrates which may be used are lithium, sodium, potassium and caesium nitrates or mixtures thereof, and they may contain water of crystallization. A number of examples are given.
Patent GB-251377-A (GB)
Title: An improved electrical connector
IPC: H01R13/703
Filed: 1925-02-17
Abstract: 251,377. Summers, L. F. Feb. 17,1925. Plug couplings combined with electric switches. The fixed portion of a coupling comprises a base 3, in which are located plug and socket members 1, 2 having terminals 4. A connecting member 6 is slidable in a bore in the base, and normally is pressed against the socket by a spring 7 so as to complete a circuit from the socket to the plug. The end of the member 6 is provided with an insulating block 8 which projects through a radial aperture in the socket 2, so that upon insertion of the plug part of the corresponding removable portion of the coupling, the block 8 is pressed inwards, and therefore causes the member 6 to be moved away from the socket and to break the direct circuit between the plug 1 and socket 2. The base 3 may be provided with two sockets instead of a plug and socket. A number of the couplings may be placed in series to afford a means of connecting in series, telephone receivers or loading coils of wireless apparatus. Specification 224,366 is referred to.
Patent GB-102010-A (GB)
Title: Improvements in Dust Separators for Granular Materials.
IPC: B07B4/02
Filed: 1916-03-25
Abstract: 102,010. Robinson & Son, T., Robinson, C. J., and Stevenson, T. J. March 25, 1916. Pneumatic separating. - In apparatus for separating dust from granular material, of the kind described in Specification 8592/06, in which the material thrown off a rotating disk is exposed to an upwardly moving and rotating air current, the stationary grain receptacle a is provided at its upper end with a number of inwardly projecting blades b which prevent the rotation of the grain, but do not impede the rotation of the air. The rotary throwing-disk is shown at c.