baber/WOPTO huggingface dataset:
Patent GB-1487391-A (GB)
Title: Distributor plate suitable for a fluidised bed furnace
IPC: F23C10/22
Filed: 1974-01-10
Abstract: 1487391 Distributer plate for a fluidized bed furnace; burners for fluidized beds BRITISH PETROLEUM CO Ltd 6 Jan 1975 [10 Jan 1974] 1149/74 Heading F4B A distributer plate (which is suitable for use in a fluidized bed furnace where air is blown through a bed of refractory particulate material to maintain the bed in a fluidized state and a fuel is introduced to the bed to burn within it) comprises a fuel oil chamber 2 which supplies oil through a flow control device 9 to an air tube 3. Air passing upwardly through the tube 3 causes the oil to move up the tube as a climbing film and out of outlets at the tube's head 5 into the bed. Additional air is supplied to the bed beneath the head 5 by a tube 4 which surrounds the tube 3, the additional air passing through a gap 8 and outlets in a head 6. As shown, fuel gas can be supplied to the additional air from a fuel gas chamber 1 and through holes 7 in the tube 4. During use of the furnace, the fluidized bed is preheated by a propane-air supply, the propane being supplied from the chamber 1 and the air being supplied along tubes 3 and 4. After suitable operating conditions have been reached, the propane supply is gradually reduced and the oil feed supply switched in. Suitable materials for the bed include broken refractory, sand, dolomite and limestone. Instead of liquid fuels, solid fuels may be used with the distributer plate acting simply as an air distributing system. The distributer plate may also be used for gasification purposes. Specification 1,368,352 is referred to.
Patent GB-850406-A (GB)
Title: Mechanical frequency filters
IPC: H03H9/50
Filed: 1958-01-13
Abstract: 850,406. Electromechanical filters. TELEFUNKEN G.m.b.H. Jan. 13, 1958 [Jan. 12, 1957; April 26, 1957; Oct. 31, 1957], No. 1219/58. Class 40(8). Resonators in an electromechanical filter are mechanically coupled by elements of small cross section compared with that of the resonators; at least two of the coupling elements being also coupled to resonant elements which are tuned to frequencies of attenuation so as to produce the poles of a frequency-attenuation characteristic of a given filter. In a band-pass filter Fig. I, biased ferrite resonators, 1, 2 are coupled by wires 5, 5<SP>1</SP> and signal frequencies are respectively applied to and taken from the resonators which are tuned to the centre frequency of the pass band, by coils 3, 4. Resonators 1, 2 and wires 5, 5<SP>1</SP> vibrate longitudinally as do elements 6, 7 of lengths #1/4, #2/4 welded to the junction of wires 5, 5<SP>1</SP> and approximately parallel thereto, so that attenuation is produced at frequencies f1, f2 on either side of the pass band. In other Figures (not shown) use of the torsional mode of vibration is depicted and the number of resonant elements may be increased.
Patent GB-509421-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H02J13/00
Filed: 1938-01-14
Abstract: 509,421. Signalling over power circuits. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and MACKENZIE, J. F. Jan. 14, 1938, No. 1338. [Class 40 (iv)] [Also in Group XXXVIII] In a system for effecting control by H.F. currents superposed on the neutral and/or phase conductors of a polyphase supply network, reliable operation of responding devices situated at a considerable distance from the control station is ensured by connecting subsidiary H.F. generators to the network at the distant locations in response to the transmission of signals from the control station. As shown, a H.F. current generator of the spark-gap type as described in Specification 435,564, [Group XXXVIII], is provided at the main station S1 and is brought into operation to transmit, signals under the control of a time-switch TS. At the remote station S2 the transmitted currents operate a sensitive relay SR which starts up a synchronous motor SM adapted to control cam contacts C1 ... C5. Contacts C3 maintain the motor circuit independently of the relay SR to ensure operation of the cams through a complete cycle. Contacts C4 bring into operation a local generator SG2 for a predetermined time period to supply H.F. current to the network at the remote station. Contacts C4 are closed after the opening of contacts C5 which disconnect the relay S2 to prevent its overheating by the local generator. The transformer TR may be of the reactive type described in Specification 489,772, [Group XXXVIII], which delivers only a limited amount of power irrespective of that applied to its primary winding. Subsequently to the opening of contacts C4, contacts C5 are again closed to connect the relay SR to the network, the relay remaining inoperative since normally signalling from the station S1 is then terminated. The motor then runs through the remainder of the cycle until contacts C3 are opened in the rest position. If due to a fault the H.F. current is still maintained in the network when contacts C5 reclose, relay SR is re-operated; but due to the simultaneous closure of cam contacts C2, the motor is short-circuited and brought to rest. Upon cessation of the signal, relay SR releases and the motor is rotated into its rest position. The relay SR is connected to the network over a full-wave rectifier bridge MRA ... MRD, condensers QA, QC being provided to tune the transformer TR so that it offers high impedance to the power currents and low impedance to the signals. A condenser QB is provided to delay the operation of the relay SR and thereby prevent its operation by transitory disturbances on the network.
Patent GB-1212974-A (GB)
Title: Improvements in or relating to the moulding of structures with double curvature
Inventor: PLEYDELL-BOUVERIE REUBEN
IPC: E04B7/10
Filed: 1967-01-11
Abstract: 1,212,974. Moulding curved structures. SCOTT BADER & CO. Ltd. 19 Jan., 1968 [11 Jan., 1967], No. 1464/67. Heading B5A. Three dimensional curved structures are moulded by laying and curing mouldable material on a flexible membrane, e.g. of neoprene, butyl, or nitrile rubber reinforced with nylon stockinette, which has been deformed about a supporting framework by the application of vacuum. The process may be employed to make a glass reinforced polyester mould. Mouldings of dwellings may be produced to which internal linings, e.g. of asbestos cement board, may subsequently be fixed. A structure, e.g. a load bearing cantilever roof, may be moulded complete with a hollow supporting stem which also provides a means of accommodating pipework and such moulded structures may also be used as temporary or permanent shuttering for reinforced concrete.
Patent GB-161324-A (GB)
Title: Improvements in winding and hand-setting mechanism for timepieces
IPC: G04B27/02
Filed: 1920-01-19
Abstract: 161,324. Bolton, W. C. E., and Rotherham, K. Jan. 19, 1920. Cases, clock.-The cylindrical case A has an external thread for a clamping-ring B<3> and the removable cover A' has a flange A<3>. Winding-apparatus, hand; setting - apparatus.-A clock A having a radial winding and setting stem C is provided with a turning-knob D<2> at the front. The hub of this knob projects through a slot A<5> in an ear A<4> on the flange A<3> into a groove C<3> on the stem C and the two gear together by mitre-pinions C<2> or crown or spur gearing.
Patent GB-1091772-A (GB)
Title: Pistol grip handle,for cameras
Inventor: HAHN WERNER
IPC: G03B17/56
Filed: 1965-01-14
Abstract: 1,091,772. Camera pistol-grip. PENTACON DRESDEN KAMERA - UND KINOWERKE VEB. Jan. 14, 1965, No.1663/65. Headings G2A and G2E. A camera pistol-grip handle 1 comprises a trigger release lever 5 mounted in the handle, and movable into a first position (shown in full line) wherein an extension 10 of the lever engages the release knob of the camera, the lever being held in this position by a surface 11 thereon engaging a cover plate 2 of the handle, and by spring 7; on pressing the trigger 9 the release knob of the camera is released and photographs are taken. The trigger release lever 5 may be pivoted about fulcrum 4, by pulling out, and then raised, by the trigger 9, into a second position (shown in broken line), wherein the extension 10 does not engage the release knob of the camera, so that if the trigger is inadvertently pulled in this position no film is wasted; the trigger lever is held in the second position by a surface of a groove 12 therein engaging the cover plate 2.
Patent GB-752895-A (GB)
Title: Supercharged, fuel-injection, two-stroke engines
Inventor: RAINBOW HORACE SINCLAIR
IPC: F02B75/02
Filed: 1954-01-20
Abstract: 752,895. Internal combustion engine gas generators; supercharged fuel-injection two-stroke engines; lubricating passages. ARMSTRONG SIDDELEY MOTORS, Ltd. Dec. 17, 1954 [Jan. 20, 1954], No. 1674/54. Classes 7(1) and 7(2) In a two-stroke fuel injection engine of the kind driving a compressor from the output of which it is supplied with its charge of air the engine being a constantstroke engine and the compressor a centrifugal compressor, means for limiting the maximum pressure in a cylinder of the engine includes a non - rotatable plug which is sealingly slidable in the cylinder head for varying the compression ratio of the engine by a drive mechanism actuated responsively to the compressor output pressure the drive mechanism being such that its direction of movement cannot be reversed by the action on the plug of the gas pressure within the engine cylinder. The invention is particularly applicable to internal combustion engine gas generators. A two-stroke fuel injection engine 10 drives a compressor 11 and forms a gas generator for a turbine 12 for driving a road vehicle. In the engine cylinder head 10 is a slidable plug 15 by which the compression ratio may be varied. The plug is operated by a hydraulic motor 24 which in turn is controlled according to the compresser output pressure by means of a slidable valve member 28. The motor 24 drives the plug 13 through a shaft 23 worm 22 and worm wheel 19a and through screw threads 17, 18. In a multi-cylinder engine one plug is required for each cylinder and in the case of an in line multi-cylinder engine a single control spindle with worms upon it or with a continuous worm can be provided for axially positioning all plugs. There can be a number of spindles 23 drivingly interconnected by shafts 23a. The motor 24 is. supplied with engine lubricating oil by an ordinary gear wheel pump. The compression ratio may vary from 13:1 when the engine is being started to 6:1. Oil is supplied through a pipe 31 to lubricate the moving parts. Specification 752,894 is referred to.
Patent GB-564641-A (GB)
Title: Improved cutting-off machine
IPC: B24B27/06
Filed: 1943-02-02
Abstract: 564,641. Severing. COMMUNICATIONS PATENTS, Ltd., and DUMBRILL, H. W. Feb. 2, 1943, No. 1684. [Class 60] A cutting-off machine comprises a pedestal built up of sheet metal side walls 4 ... 6 with metal strips 9 at the bottom of two sides having end securing-lugs 8, the upper portion of the pedestal being braced by bars 10, on two of which are mounted V-grooved runways 11, with which co-operate V-grooved members 12 on a sliding table 13, balls 14 being provided in the grooves. A bracing plate 15 extends from the wall 6 upwardly to the opposite wall 4, and plates 16, 17 extend between the plate 15 and the walls ; the parts may be united by welding. On the pedestal is a stationary table 18 with one edge adjacent a side edge of the table 13 and cut away to accommodate a thin abrasive wheel 19, the table being pivoted at 20 so as to be movable to allow access to the mounting for the wheel 19. The wheel 19 is carried by a shaft 21 running in bearings 22 secured to the bars 10, and is driven by belts 24 from an electric motor 26; a dust-collecting casing 28 and conduit 29 is provided for the wheel 19 and a pump, which may be separate or mounted in the pedestal, is provided to remove the dust. The wheel 19 may be adjustable vertically about the axis of the motor 26 and a shield 30 for the wheel is provided, adjustably carried by an arm 31. The work is held on the table 13 and moved past the wheel 19 ; a clamp bar 32 with a clamp 33 for the work or to hold gauging or template means may be provided on the table 13, and a similar clamp may be provided on the table 18.
Patent GB-746975-A (GB)
Title: Improvements in or relating to the releasable connection of abrasive paper or the like to a rotatable driving member
IPC: A47L11/164
Filed: 1954-01-20
Abstract: 746,975. Stud and socket fastenings. ELECTROLUX, Ltd. Jan. 20, 1954 [Jan. 31, 1953], No. 1690/54. Class 44. [Also in Group XXIII] In a floor polishing machine, a centrally apertured pad 16 of sponge rubber is glued or pasted to a rigid plastic disc 15 having moulded integrally therewith metal pins 13 held by springs 14 in a horizontally rotatable tool holder 11 driven by a belt 12. A disc 18 of abrasive paper, cloth or the like is secured against the pad 16 by a holder comprising a metal plate 23 engaging the central part of the disc 18 and having a pair of resilient metal tongues 21 projecting through slots in the disc 18 and engaging by snap-action an opening in the disc 15. The opening 25, Fig. 8, in the disc 15 may be non-circular to prevent rotation of the holder relative to the disc 15. The pad 16 may be fastened directly to the tool holder 11 which is a permanent part of the machine.
Patent GB-178200-A (GB)
Title: An improved air tube for pneumatic tyres
IPC: B60C5/04
Filed: 1921-01-11
Abstract: 178,200. Chappell, D. J. Jan. 11, 1921. Air-tubes.-In an airtube a having strips b of thin rubber &c. attached by one edge to the inner surface of the tube, the free edges being slit at b' to form overlapping flaps, the flaps are formed with tongues or extensions c which cover the slits in the underlying strip.
Patent GB-1130125-A (GB)
Title: Process for the production of organic sulphonates
Inventor: NORTON CHARLES JOSEPH
IPC: C07C303/20
Filed: 1967-01-12
Abstract: 1,130,125. Production of organic sulphonates. MARATHON OIL CO. 12 Jan., 1967 [14 Jan., 1966], No.1811/67. Heading C2C. A process for producing organic sulphonates comprises preaerating a hydrocarbon compound containing non-aromatic carbon to carbon unsaturation by intimately contacting said compound with a free-oxygen-containing gas until the reaction mixture has a titratable peroxide number of at least 10 inilliequivalents of titratable peroxide per kilogram of reaction mixture and thereafter reacting the resulting reaction mixture with a soluble, non-interfering bisulphite so as to produce an organic sulphonate. The preaeration and reaction with the bisulphite are preferably carried out at a temperature of 15-200‹ C. and a pressure of 0À1- 10,000 p.s.i.a., the reaction with the bisulphite being carried out in the presence of from 0À25- 10 volumes of inert organic solvent per volume of hydrocarbon compound. Hydrocarbon compounds preferred are acyclic olefins and bisulphites preferred are alkali metal and ammonium bisulphites. Air may be sparged into the reaction during bisulphite addition. Reaction of sodium bisulphite with pre-aerated α-olefins yields a sodium alkane sulphonate.
Patent GB-174382-A (GB)
Title: Improvements in and relating to spring suspensions or shock absorbers for vehicles
IPC: B60G17/027
Filed: 1920-10-20
Abstract: 174,382. McLaughlin, G. C., and Smith, W. J. Oct. 20, 1920. Duration of oscillation, increasing.-Relates t o vehicle suspensions provided with an auxiliary spring system consisting of one or more pairs of springs normally in alignment, which when moved exert a force opposing rebound, and consists in automatically varying, with the load, the zero point of the suspension curve, by varying the normal position of the auxiliary device. The auxiliary system comprises pairs of helical springs r<1>, Fig. 3, anchored at their inner ends by bolts 40 to a sleeve 38 on a boss 33 mounted on a cover plate of a casing 28 bolted to the frame. The outer ends of the springs are anchored to bolts 41 connecting discs 42 movable relatively to the sleeve 38 and carrying a balllever 43 projecting into a cylinder 30 formed integral with the casing 28 and containing a double-acting piston 44 provided with valve seats 46 for balls 47 actuated by the lever 43, one being clear of its seat. A lever 50 shackled to the axle is connected to a disc 49, Fig. 5, on the sleeve 38 and the disc 49 is gapped to provide actuating-shoulders 51 for a pair of levers 52, the other ends of these levers actuating the hollow ported spring-pressed plungers 56 of pumps inserted in bores in the casing. The plungers have valve seats 57 and balls 58. At the ends of the pump cylinders, ball-valves 64 control the connection through the ducts 67 with the cylinder 30. The pumps are submerged in oil or other liquid as shown. On an increase in the load, the inner ends of the springs are rotated by the lever 50, thus tending to rotate the sleeve 38 and discs 42 in opposite directions. The ball-lever 43 is pressed against its left-hand seat. During running, the levers 51 are continually moved, thus pumping oil into the cylinder at both sides. That on the right is returned through the valve 46, but that on the left moves the piston over, thus adjusting the plates 42 to cause the springs to reapproach a radial position.
Patent GB-593083-A (GB)
Title: Improvements in and relating to adjustment devices for ladders
IPC: E06C7/46
Filed: 1945-01-23
Abstract: 593,083. Ladders. DICKSON, C. W. Jan. 23, 1945, No. 1813. [Class 20(ii)] A stile of a ladder has bolted to its fool c, Fig. 1, a pair of L shaped brackets a carrying, througl their horizontal extensions, a screw g in alignment with the stile, a sleeve k, Fig 4, with milling m anc wings l to facilitate rotation being screwed on to the screw g to give the required adjustment ,to the ladder, e.g. on uneven ground. The sleeve is pointed at n to ensure firm engagement with the ground. The holes in the brackets a, through which the screw g passes, may be elongated to facilitate use of the brackets with stiles of various thicknesses.
Patent GB-113804-A (GB)
Title: Improvements in Machines for Cold-forging Horse Shoe Nails.
Inventor: BROUGHAM FREDERICK JOHN
IPC: B21G3/32
Filed: 1917-02-05
Abstract: 113,804. Brougham, F. J., (Mustad & Son, 0.). Feb. 5, 1917. Forging nails.-In a machine for cold-forging horse-shoe nails, the blank 1. after passing through the press-jaws 2, is gripped by one of a number of grippers 11 resiliently pivoted on an intermittently rotating ca,rrier 12, and is severed by a blade 3. The grippers consist of a fixed jaw 9 and a movable jaw 10, which is pressed upwards by a spring 13; or both jaws may be resiliently mounted. Each gripper is pivoted to the frame 12 and is held normally against an abutment 15 by a spring 14. The severing-mechanism comprises a blade 3. adjustably attached to a holder 4, which is pivoted on a reciprocating slide 6 and is pressed towards the jaws 2 by a spring 7.
Patent GB-347209-A (GB)
Title: Improvements relating to electric switches, more particularly to switches for high potential conductors
IPC: H01H31/28
Filed: 1930-01-20
Abstract: 347,209. Highpotential switches. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-( Ohio Brass Co. ; Mansfield, Ohio. U.S.A.) Jan. 20, 1930, No. 1917. [Classes 38 (iii) and 38 (v).] Electric motor actuation ; earthing parts of ; systems for controlling travel for a fixed distance.-An insulating column carries a switch arm which has a driving connection with an insulating shaft rotatable about a longitudinal axis, the shaft serving for operating the switch arm and for bracing the supporting insulating column. As shown, two switch arms 13, 14 are carried on insulating columns 10, 11 on a support 12, and are connected to heads 19, the shafts of which are rotated by gearing in housings 20<11>. This gearing is in turn rotated by insulator stacks 20 driven by a motor through gearing 26, 27. Simultaneously with the opening movement of the arm 13, an earthing switch arm 31 is rotated about a pivot 30 by a shaft 29 and gearing 28 into a position where it engages the arm 13 and earths the apparatus connected to the lead 24. In a modified form, the arm 13 engages a stationary earth contact. Figs. 6 and 7 show a form wherein two insulator stacks 84, 85 are mounted on brackets 87 and support the respective switch arms 80, 81, which are attached to pivoted heads 82 operated by stacks 86 from a motor connected to a shaft 112 and gearing. Insulated controls 93 may be provided for improving the electrostatic field. Fig. 5 shows a remote control system for the operating motor. To close the switch, the contacts 47, 49 are moved in the direction of the arrow 51 to connect the armature through a switch 58 across the supply 37, 38, and the field 67 through contact 49. In closing the switch, the motor operates a rider 61 which, at the end of its travel, opens the switch 58 to stop the motor and closes at 56 the circuit of a red indicator lamp R. To open the switch, the contacts 48, 50 are moved upwards connecting the field 67 with the same polarity, but causing the current to flow in the opposite direction through the armature through switch 59. At the end of the opening movement, the rider 61 opens at 59 the circuit of the motor and closes at 57 the circuit of a green indicator lamp G.
Patent GB-1128401-A (GB)
Title: Ladders
Inventor: DENNISON THOMAS ARTHUR HORWOOD
IPC: E06C1/56
Filed: 1966-01-14
Abstract: 1,128,401. Flexible ladders. BRITISH AIRCRAFT CORP. (OPERATING) Ltd. 10 April, 1967 [14 Jan., 1966], No. 1927/66. Heading A6L. A flexible aircraft escape ladder comprises sections 31, 22, &c., which are of magnesium alloy and hinged together at 23 via pivot pins 23 which are adjacent to spring-loaded locking pins 25 which lock the sections together to form a straight ladder after it has been unfolded from its stored position, (Fig. 3, not shown) and may be released via holes 27 in the side members 29 of the sections. The second (31) and third (22) sections of the ladder from the top (when in use) have spacing means 32 fixed thereto, each of which consists of two semicircular discs 33 and 34 (Figs. 9-11, not shown) one, 33 of which can be rebated inside the other, 34 against the action of a central spring 37 when the ladder is stored, but automatically rotates into a position to form a circle with disc 34 when the ladder is unfolded. The hinges pins and holes for receiving the pins are constructed so that if the sections do not lock together under their own weight, they will when loaded by a person descending the ladder.