baber/WOPTO huggingface dataset:
Patent GB-1007604-A (GB)
Title: Improvements in or relating to means for operating doors
IPC: E05F15/50
Filed: 1962-04-02
Abstract: 1,007,604. Door operating devices; door closers. LANDERT-MOTOREN A.G. April 2, 1962 [April 10, 1961], No. 12603/62. Heading E2M. An hydraulic door operating appliance comprises a door driving cylinder 14, a pump 2 driven by an electric motor, a pressure accumulator 5 adapted to supply pressure fluid to open the door, and a door closing spring (not shown) the motor and pump being in operation for the entire opening process, and during the time that the door subsequently remains open, and the accumulator being recharged by the pump during such subsequent time. When the motor and pump are started the pressure fluid in pipe 3 passes through non- return valve 4 to pressure accumulator 5 and also depresses a differential valve 6 which opens a ball valve 9 to admit fluid from both the pump and the accumulator to the pressure chamber 13 of the driving cylinder 14 via pipe 10, valve 11 and throttle 12. As the door approaches its fully open position the escape of fluid from the cylinder chamber 16 through apertures 17 is prevented by the piston 15 and the speed of the final closing movement can be controlled by a throttle 19. Once the door is fully open and the pressure accumulator has been recharged further fluid delivered from the pump drains away through a safety valve 21. When it is desired to close the door the motor and pump are stopped and the valve 6 rises under the action of spring 7, thereby opening an outlet 8 to permit the closing spring (not shown) to move the piston into the cylinder, the speed of closing being controlled by throttles 24, 25. The valve seats for the valve balls 4, 9 are made of material such as nylon to minimise pressure loss from the accumulator during the periods between operations. The appliance can also function as a door closer when the door has been opened manually, the cylinder 14 acting as a dashpot. Specifications 303,978; 328,359 and 1,007,605 are referred to.
Patent GB-231801-A (GB)
Title: Manufacture of new cellulose compounds
IPC: C08B15/06
Filed: 1924-05-22
Abstract: Cellulose derivatives are prepared by treating with a derivative of ammonia in which at least one hydrogen atom is substituted by an alcohol radicle and in which at least one replaceable hydrogen atom remains, the products or reaction mixtures obtained by the action of a monohalogen fatty acid, or a salt or derivative thereof, on a cellulose xanthic acid or a cellulose xanthate such as crude viscose; such products or reaction mixtures are prepared, for example, according to the process described in Specification 231,800. Examples of ammonia derivatives are aniline, orthotoluidine, ethylamine, diethylamine, methylamine, and phenylethylamine.  The reactions between the cellulose xanthic acid &c. and the halogen fatty acid &c., and between the resulting cellulose xanthofatty acid &c. and the aliphatic or aromatic amine, may be carried out in two separate operations or they may be combined in one operation; and the amine may be caused to react with the isolated cellulose xanthofatty acid or with the crude reaction mixture containing such acid, or with the latter in the nascent state, the amine being added either before, during or after the addition of the halogen fatty acid &c.  The process may be carried out in neutral, alkaline or acid solution, and the cellulose xantho-fatty acid may be in the solid state or in suspension; the reaction may be conducted at ordinary temperature, or with heating; the amine may be used in excess, or in the theoretical quantity, or in smaller amount.  The final product of the reaction of a precipitate or jelly is isolated from the reaction mixture by filtration &c. and washing; if remaining in solution, by precipitation by the addition of an acid or an acid salt.  The products are insoluble in water, alcohol or ether, but they are soluble in dilute caustic alkali and in aqueous ammonia, and in organic solvents such as pyridine, aniline and chlorhydrins, especially in aqueous solution.  From their solutions the cellulose derivatives give films or filaments which are strong, flexible, transparent, and which show a notable resistance to water.
Patent GB-879360-A (GB)
Title: Improvements in runways for sliding doors, drawers and the like
Inventor: RILEY DEREK ARNOLD
IPC: B61D19/02
Filed: 1959-04-14
Abstract: 879,360. Cabinets; drawers. BECKETT LAYCOCK & WATKINSON Ltd. April 11, 1960 [April 14, 1959], No. 12683/59. Class 52(1). A runway for sliding cabinet doors or drawers has a channel section guideway 20 with grooves 21 in which moves a slide 24 held in place by and slidable by means of bearing pads 30 of nylon, polytetrafluoroethylene or like wear resisting material, the pads having rod-like portions engaging the groove 21 and grooves 26 in member 24 to which they are secured by screws 32. In a modification Fig. 6 the pads 30a fit into guide channel 20 and are secured thereto by screws 32a. In a further modification Fig. 8 only the guideway has grooves slide 24a being a plain channel.
Patent GB-1299309-A (GB)
Title: Improvements in or relating to evaporators-concentrators
IPC: B01D1/22
Filed: 1971-05-03
Abstract: 1299309 Evaporators; rotary disk type; concentration of fruit syrup LUCIEN BRETON 3 May 1971 [ 5May 1970] 12689/71 Heading B1B A solution, e.g. a fruit syrup, is concentrated by supplying it, preheated if necessary, through pipe 22 into the first trough 4 of a housing having a corrugated bottom constituting three troughs 4, 7, 8, the central trough 7 being provided with parallel vertical disks 3 mounted on shaft 9, and the arrangement being such that the disks dip in the solution and films thereof are formed on the upper surfaces of the disks when they are rotated by motor 14; solvent is evaporated from the films of solution on the disks by passing air through the housing or by maintaining it under partial vacuum. In the evaporator shown, air is drawn through, or forced through, the apparatus by means of fan 16, the throughout of air being controlled by shutters 21 in opening 18. Concentrated solution is withdrawn from trough 8 through pipe 23, and may be recycled via the feed tank to trough 4. When the solution has reached the desired degree of concentration, the evaporator is drained by opening valves 28 and 29. The housing may be constructed in a fluid-tight manner, and the fan may be replaced by a vacuum pump. The shaft and disks may be removed for cleaning, after removing the cover 5. The number of disks may be altered. The evaporator may be used for the concentration of orange or mandarine syrup without detrimental oxidation.
Patent GB-902188-A (GB)
Title: Improvements in or relating to hydraulic supports
Inventor: TEBB BERNARD
IPC: E21D15/45
Filed: 1960-04-09
Abstract: 902,188. Hydraulic pit props. MASTABAR MINING EQUIPMENT CO. Ltd. March 27, 1961 [April 9, 1960; April 19, 1960], Nos. 12705/60 and 13580/60. Class 20 (2). In an hydraulic pit-prop comprising telescopic members 10, 12 incorporating a differential reciprocating pump unit 42, 44, the pump on the down stroke feeds pressure fluid from a cylinder 40 through a valve 74 to the underside of the ram 30, 32 of the cylinder 12 whilst on the up stroke it feeds fluid from the reservoir 12 to the cylinder 40 through valve-controlled inlet means 76, 78, 80. The connecting rod of the pump is detachably connected to a rockable spindle which is positioned by a removable pin engaging a groove therein and is journalled in a sleeve secured transversely to the member 12. The piston 42 is rendered inoperative when the prop engages the mine roof and the highpressure piston 44 cuts out at a pressure determined by an adjustable valve 52. The prop is provided with a relief valve in a capsule 82, a breather valve, in Fig. 1 (not shown), and a release valve 32 adapted to be opened by a plunger 90 when depressed by the piston 42 under suitable positioning of the pump handle. The base 14 is secured to the member 10 by a bolt 13 to permit access to the ram or is welded thereto, see Fig. 4 (not shown). Specification 898,987 is referred to.
Patent GB-1056464-A (GB)
Title: Improvements in or relating to devices and methods for remotely testing spark-ignited combustion engines
IPC: F02P17/00
Filed: 1965-03-25
Abstract: 1,056,464. Testing I. C. engine ignition circuits. F. RABOTTI S.p.A. March 25, 1965 [March 28, 1964], No. 12749/65. Heading G1U. An arrangement for testing spark ignited internal combustion engines includes a receiver aerial 1 for picking up signals radiated from the high voltage section of the engine ignition circuit, a detector-amplifier circuit including the tuned circuit 3, diode 4 and transistor 5 associated with the aerial and a measuring instrument 11 connected only to the output of the detector amplifier circuit to supply a reading related solely to the radiated signals and consequently to the operation of the engine ignition circuit. The measuring instrument 11 may consist of a pulse rate meter which includes a monostable Schmitt circuit which is triggered to its unstable condition by each pulse. The average current flowing through one side of the circuit is read on a meter 19. Other measuring instruments, such as oscillographs, may be used in place of the rate meter 11.
Patent GB-507698-A (GB)
Title: Improvements relating to free-piston compressors and motive gas producers
IPC: F02B71/04
Filed: 1938-04-28
Abstract: 507,698. Free-piston compressors. PESCARA, R. P. April 28, 1938, Nos. 12760 and 12761. Convention dates, April 29, 1937, and March 14, 1938. [Class 8 (i)] Water &c. is injected into the compressor part of a free-piston compressor or motive gas producer in quantity dependent on the length of the piston stroke and in some cases also on the feed or delivery pressure. Fig. 1 shows a compound free-piston compressor in which a cam 6 on a piston-rod extension actuates a pump 8 supplying water to a sprayer 9 in the low-pressure discharge conduit 4. In a modification, a pump with a chamber of variable volume delivers liquid to an injection valve opened at the end of the suction stroke and held open by the liquid pressure. Fig. 4 shows a liquid pump 7 actuated by a piston-rod extension through a lever acting on a rod 15 inclined to a degree variable in accordance with a delivery pressure acting on a device 19. The time of starting the injection is variable in accordance with the air feed pressure acting on a piston 24 to control the pivot 18 of the lever 16. In a modification, thermostatically and pressure actuated bellows may act conjointly through a lever system on the rod 15.
Patent GB-1070584-A (GB)
Title: Multiple pulse train transmission
IPC: G08C19/16
Filed: 1965-03-25
Abstract: 1,070,584. Selective signalling; counting apparatus. A. O. SMITH CORPORATION. March 25, 1965 [March 25, 1964], No. 12767/65. Headings G4D and G4H. A circuit for transmitting pulses generated at two different sources 2, 3, Fig. 1 (not shown), comprises cam-operated contacts 4, 5 adapted to set up conditioning relays 16, 16<SP>1</SP>, scanner switches 9, 9<SP>1</SP> connected with the relays, scanning magnets 34, 35 operating switches 9, 9<SP>1</SP> momentarily and sequentially and pulse-forming circuits 10, 10<SP>1</SP> operated by the cyclic energization and de-energization of the relays 16, 16<SP>1</SP> to pass pulses to a load 1, e.g. a counter. The contact-operating motors 13, 131 may form parts of petrol pumps, the closure of the corresponding contact 4 or 5 indicating that a unit volume of petrol has been delivered. When a contact, e.g. 4, closes the corresponding relay 16 picks and holds through contact 17 and switch 9. The transfer of contact 17 allows capacitor 27 to discharge through resistor 28. When switch 9 is opened by the passage of scanning magnet 34, relay 16 is de-energized and contact 17 returns to contact 18. This applies power across capacitor 27 and coil 26 in series. Capacitor 27 charges and the relay picks momentarily, closing contacts 29 to apply a pulse to counter 1. The switches 9, 9<SP>1</SP> are operated at different instants by the angularly displaced magnets 34, 35. They may be standard reed switches normally held closed by magnets 25, 25<SP>1</SP>, the attraction of which is overcome by the moving magnets 34, 35.
Patent GB-821037-A (GB)
Title: Atomizing spray for oil gas production
IPC: B05B7/10
Filed: 1956-04-26
Abstract: 821,037. Spray-producers. ALLIED CHEMICAL CORPORATION. April 26, 1956 [June 28, 1955], No. 12779/56. Class 69 (3). A device for spraying oil into the reaction chamber of an oil gas plant comprises an oil feed line 1 leading to a pipe 3 of larger diameter which is surrounded at its lower end by a water cooling jacket 17 and by an open-ended jacket 7 screwed into an elbow 4 and serving to supply steam to aid in the dispersion of oil from a nozzle 27 which is screwed into the discharge end of the oil pipe 3 as shown in Fig. 1, the nozzle 27, shaped as shown in Fig. 2, comprising an access plug 29 with a central hole 32 and tangential ports 31 through which oil passes to the interior of the nozzle for discharge through a cylindrical throat 38 and a frusto-conical shaped discharge end 39, the areas of the cylindrical throat 38, the tangential ports 31 and the central hole 32 having ratios in a proportion of 1 : 1.5-4.0: 0.3-0.6. Steam supplied to the jacket 7 passes out through channels 34 to disperse the oil. In a modification, Fig. 5 (not shown), the jacket 7 is omitted and steam is not supplied to aid the dispersion of the oil. Specifications 683,563, 683,564, 702,249 and 702,252 are referred to.
Patent GB-1405623-A (GB)
Title: Anti-slip shoulder straps
IPC: A45C13/30
Filed: 1972-09-20
Abstract: 1405623 Shoulder straps H BAUSCH 20 Sept 1972 [29 Dec 1971] 12819/72 Heading A3V [Also in Division B2] A shoulder strap for carrying an article is rendered resistant to slip by the application thereto of a strip comprising a layer of 1 of anti-slip material, e.g. crepe or soft rubber, suede leather or pile fabric, coated with a layer 2 of pressure sensitive adhesive which is initially covered by a protective foil 3.
Patent GB-1056153-A (GB)
Title: Improvements relating to camera shutters
IPC: G03B7/083
Filed: 1964-03-26
Abstract: 1,056,153. Cameras; shutter mechanisms. INTERNATIONAL POLAROID CORPORATION. March 26, 1964 [March 29, 1963 (2) ], No.12868/64 Heading G2A. [Also in Division G1] In a camera shutter, a solenoid 124 is energized on initiation of exposure and acts upon a core 1 which attracts keeper 118 attached to a spring- loaded exposure terminating shutter plate 36 to hold the shutter open until the solenoid is deenergized to release the keeper and so close the shutter. The shutter is manually cocked by lever 80, pivoted at 84, which moves plate 36 to the right until keeper 118 is engaged with and resiliently urged towards core 1, a latch 92 retaining the keeper in contact to define a complete magnetic circuit. The duration of the exposure is decided by a two-stage modified Schmitt-type trigger circuit, transistorized for low power consumption, and responsive to the output voltage from a timing circuit including a condenser and a photo-conductive cell, such as a cadmium sulphide photo-cell, by which the scene brightness is assessed. The pole faces 6, 7 of core 1 are planar, and the contact face 8 of the keeper is cylindrical to give a linear contact which is insensitive to misalignment, and to inerease the magnetic force. Shutter blades 28, 36 move in separate tracks 42 across the lens aperture 24. When the shutter release mechanism is operated, element 100 switches in the above control circuit by closing contacts 142, 144 and also rotates element 90 anti-clockwise about pivot 96 so that latch 92 releases tab 94 on release slide 68. The slide is then moved to the left by the engagement of forked end 82 of spring-loaded lever 80 with pin 76. Opening blade 28 is carried to the left by spring 44 engaging the stud 46 until aperture 34 is aligned with lens aperture 24. The closing blade 36, hitherto held in the open position by the engagement of edge 32 of blade 28 with pins 114, 116, is now held against spring 54 only by the attraction of solenoid 124. This motion of blade 28 is initially delayed by engagement of its pin 63 with latch 104 of timing element 106 until cam 112 is engaged by pin 76 on slide 68. Element 106 then pivots to release blade 28 and through tail 156 to open contacts 150, 152 thereby activating the timing circuit which determines the release of blade 36 to terminate the exposure. Specification 1,056,154 is referred to as a Divisional Specification.
Patent GB-1345892-A (GB)
Title: Gas turbine engines
IPC: F02K3/075
Filed: 1971-05-04
Abstract: 1345892 Gas turbine engines; ducted fan engines GENERAL ELECTRIC CO 4 May 1971 [4 May 1970] 12881/71 Headings F1G and F1J The invention relates to a gas turbine engine comprising first and second independently rotatable compressor rotors in series flow relation in an annular flow passage there being means for selectively by-passing a portion of the air compressed by the first compressor. The engine shown is a gas turbine ducted fan engine comprising a fan 30 and LP compressor assembly 32 and an HP compressor assembly 38, air from the fan passing in part to the LP compressor 32 and in part to the fan duct 22 for discharge through fan outlet nozzle 24. Air from the LP compressor passes through annular passage 14 to the HP compressor 38. Means are provided for by-passing a portion of air from the LP compressor into the fan duct 22 through a series of circumferentially-spaced by-pass passages 42, there being a valve member 51 for each by-pass passage, each valve member 51 being pivotally mounted at its upstream end about a tangential axis 52 as indicated in Fig.1. Each valve member carries a bracket 84 on its outer surface. A bell-crank lever comprising arms 62, 66 is provided for each valve member, the bell crank lever being pivotally mounted about a radial axis 58, the arm 62 being connected to a unison ring 56 and the arm 66 being connected through a link 68 to the bracket 84 on the valve member. An actuator 76 is provided, the piston rod 92 of which is connected through a link 78 to the arm 74 of a bell crank lever 72, 74, the other arm of the bell crank being connected at 64 to the unison ring 56 whereby movement of the actuator causes combined angular and axial movement of the unison ring and therefore pivotal movement of the valve members either in the opening or closing directions. The unison ring is of C-section and is mounted for rotational and axial movement upon a cylindrical surface 102 of the casing structure.
Patent GB-690666-A (GB)
Title: Improvements in or relating to multi-disc friction clutches
IPC: F16D13/54
Filed: 1951-05-31
Abstract: 690,666. Friction clutches. ZAHNRADFABRIK FRIEDRICHSHAFEN AKT.-GES, May 31, 1951 [July 27, 1950], No. 12934/51. Class 80 (ii). The presser plate 15 of a multi-disc friction clutch between a shaft 5 and a gear wheel 4 has inclined surfaces 22 co-operating with rollers 23 on plungers 19 which are movable radially in the shaft under the control of bar 27 which is movable longitudinally within the shaft and which carries rollers 28 co-operating with the inclined inner ends of the plungers. Clutch disengagement is effected by springs 30, and reaction springs 14 are provided. Two such clutches in a change-speed gear are shown.
Patent GB-240204-A (GB)
Title: Improvements in or relating to solid rubber band tyres and their fitment to wheels
IPC: B60C7/00
Filed: 1924-05-27
Abstract: 240,204. Killen, E. B. May 27, 1924. Non-metallic elastic bodies and cores; tread surfaces.- A solid rubber tyre vulcanized to a single metal foundation band 5 is formed with an arcuate-section tread of extreme width equal to that of the base, 5, spaced cavities 2, 2<a> alternating around the sides of the tread leaving strong buttresses 4, 4a and a solid central wall 1 whose width is preferably 40 per cent of the tyre width. The rubber body between the tread edges and the base is preferably formed of reduced width as by the incurved 8, 8<a>. When fitted in twin or multiple form, as shown, the treads of adjacent tyres abut, thereby excluding stones &c. from jamming between the tyres. The recesses 2, 2<a> may be provided with stone-ejecting ribs 7, 7<a>. Specifications 116,390. 148,007, 191,545, and 194,452 are referred to.
Patent GB-412024-A (GB)
Title: Improvements in electric discharge tubes chiefly for television and luminescent relays
IPC: H01J17/30
Filed: 1933-05-04
Abstract: 412,024. Discharge apparatus. SOC. DES LAMPES FOTOS, 41, Rue Cantagrel, Paris. May 4, 1933, No. 13002. Convention date, May 4, 1932. [Class 39 (i).] An electric discharge tube, particularly for uses where the potential changes rapidly and often, such as television receivers or luminescent relays comprises a rectilinear nickel anode 2, and a nickel cathode plate 5 of large area, a small portion 8 of the cathode surface being coated with a substance having a much lower extinction potential than the material of the cathode plate in order to maintain a residual discharge which restarts the main discharge after extinction. A suitable coating comprises an alkaline or alkaline earth metal, oxidized if desired, or deposited from an azide solution. An insulating coat 7, for example of mica or enamel, covers one side of the cathode.
Patent GB-120715-A (GB)
Title: Improvements in Sound Boxes for Sound Recording and Reproducing Machines.
Inventor: JOHNSON ELDRIDGE REEVES
IPC: G11B3/46
Filed: 1918-08-10
Abstract: 120,715. Johnson, E. R. Nov. 12, 1917, [Convention date]. Tool arms and mountings. -The stylus lever of a gramophone sound-box is kept under tension by means of springs bent or coiled around the pivotal axis and secured to the stylus crossbar and to the fixed case. As shown in Figs. 1 and 4, the cylindrical cross-bar 11 is half cut away at its ends and is grooved to form bearings for knife edges 16 projecting downwardly from a plate 15 secured to the sound-box casing 1. The curved tensioning-springs 21 are each attached at one end of a screw 20 to the crossbar 11 and at the other end are slotted to receive a screw 24 which secures them to the plate 15. The springs 21 are oppositely placed so that the end of one projects forwardly towards the front of the case 1, whilst the other projects towards the back-plate 2. The springs keep the cross-bar 11 pressed on the knife-edges 16. In a modification, shown in Fig. 17, each strip spring 21<1> is coiled into helical form with its extremities extending in opposite radial directions and its centre attached, to the cylindrical cross-bar 30. The extremities are slotted and secured by screws 24 to the plate 15. The cross-bar 30 is pivoted on conically-pointed screws 31 adjustable in lugs 16' on the plate 15.
Patent GB-118285-A (GB)
Title: Improvements in Bobbin Spindles for Braiding Machines.
Inventor: KAPPELER JEAN
IPC: D04C3/14
Filed: 1918-08-10
Abstract: 118,285. Kappeler, J., and Aeschbach, F. Aug. 13, 1917, [Convention date]. Braiding-machines. - The bobbin spindles are provided with at least one pair of short shoes, each shoe being adapted to turn about an axis parallel to the axis of the spindle. As shown, the foot of the spindle is furnished with disks f, f<1> on which are formed respectively short shoes aa<1>, bb<1>, the pairs of shoes ab, a<1>b<1> engaging respectively with guidegrooves c<1>, c<2> on each side of a guide-rail d. The disks f, f<1> are grooved to engage a retaining-rail g. With a single pair of shoes, the same may run in the same or in different guide-tracks.
Patent GB-238946-A (GB)
Title: Improvements in urinals
IPC: E03D11/18
Filed: 1924-05-27
Abstract: 238,946. Jennings, S. May 27, 1924. Urinals.- Stalls are made of the shape shown with a narrow forwardly - projecting lip c and a flat base adapted to be secured to the floor.