baber/WOPTO huggingface dataset:
Patent GB-1068484-A (GB)
Title: Microwave oven
IPC: H05B6/74
Filed: 1965-04-02
Abstract: 1,068,484. Valve oscillator circuits; R.F. couplings. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 2, 1965 [April 7, 1964], No. 14058/65. Headings H3F and H4A. In a microwave heating apparatus in which a heating chamber 3 is supplied with R.F. power through a port in a side wall by a waveguide 2 connected to a magnetron 1, said chamber contains a periodically-variable reactive device 5 adjacent the port and said waveguide contains a reactive element 4. As described, the device 5 is a rotatable wheel with inclined wings or discs and the element 4 is a pin projecting into the waveguide through a longitudinal slot, to permit axial adjustment. It is arranged that during the whole variation of the device 5 the magnetron 1 is operating within its " sink range " when reflection of energy back through the waveguide 2 causes appreciable variation of the frequency of operation thereof. Because of this, and also because of the reflection of emerging energy by the device 5 as it operates to different parts of the heating chamber 3, it is stated that a more uniform distributon of energy therein is obtained.
Patent GB-411669-A (GB)
Title: Improvements in and relating to gaseous electric discharge devices
IPC: H01J17/49
Filed: 1933-05-15
Abstract: 411,669. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Foulke, T. E. ; 30, Evelyn Place, Nutley, New Jersey, U.S.A.) May 15, 1933, No. 14078. Convention date, May 13, 1932. [Class 39 (i).] A method of producing a gaseous electric discharge device comprises coating the electrodes with a decomposable nitrogen compound of an alkali or alkaline earth metal, reducing the compound partly to the metal and partly to another nitrogen compound without exposing said electrodes to deleterious gases and oxidizing treatment, evacuating, introducing the desired filling and sealing-off the device. In one example electrodes of nickel, iron, molybdenum or copper, or nickel plated with another metal are used and are roughened, for instance by dipping in nitric and citric acid, drying and electrolytically etching in sulphuric acid. The electrodes are then coated with a mixture of barium and caesium azides by dipping in a water solution of 10 to 20 per cent barium azide and 0.5 per cent caesium azide. The electrodes are dried and assembled in the device without heating. The electrodes are then heated to 150 C., reducing the barium azide to nitride, and then to 180 C. producing some metallic barium. To protect the electrodes from gases evolved from the envelope the envelope is heated to 300 C. in a furnace giving low radiant heat so that before the electrodes reach 150 C. it is gas-free. Several methods of controlling the furnace temperature are described. The device is evacuated, filled with a mixture of neon and 0.4 per cent argon at a pressure of 30 to 35 mm. and sealed off. The device is then activated by an alternating- current high intensity discharge which reduces the caesium azide to caesium and caesium nitride. The electrodes may be coated with barium azide or strontium azide, or either of these with caesium azide, or rubidium azide or caesium azide, or either of these with barium azide or strontium azide or with barium azide and strontium azide, or amides or other nitrogen compounds may be used. Fig. 2 shows a lamp having electrodes made in accordance with the invention. The electrodes 4 which may simulate a candle-flame, or stars, or crosses, or letters or insignia, are spaced about 1 mm. apart at their upper end. A mica disc 7 shields them from the heat of the sealing-off flame. A resistance 6 is mounted on the cap 5. The lower part 8 of the lamp is covered with a material such as that known under the Registered Trade Mark "Duco" to simulate a wax candle, or the envelope may be wrapped in paper or the like. Specification 362,347 is referred to.
Patent GB-553743-A (GB)
Title: Improvements in skeleton framework for buildings
IPC: E04B1/21
Filed: 1941-11-01
Abstract: 553,743. Building construction. WINSTANLEY, W. H. Nov. 1, 1941, No. 14081. [Classes 20 (i), 20 (iii) and 20 (iv)] Precast reinforced concrete bars 1, laid on a birch or'concrete foundation 2, are provided with dovetail sockets to receive dovetail ends integral with upright bars 8 at right-angles. The uprights 8 support horizontal bars 9 having sockets 10 to receive further vertical bars, or the dovetail ends of an inclined roof truss element. Where two adjacent roof spans are to be supported, the bar 9 may be doubled in width 14, Fig. 5, and is similar to the bar 1 with a central longitudinal rain water channel 115. The bars 8 may be provided with a channel 15, Fig. 6, to receive a panel 22 which is secured by wedges, cement grouting, or putty, or two sets of channels 15 may be provided, so that the panels form a cavity wall, or if of glass, a heat insulated transparent panel.
Patent GB-572437-A (GB)
Title: Improvements in or relating to gun-turrets for aircraft
IPC: F41A23/20
Filed: 1938-11-30
Abstract: 572,437. Aircraft gun turrets. BRISTOL AEROPLANE CO., Ltd., and FRISE, L. G. Nov. 30, 1938, No. 14121/39. Divided out of 510,538. [Class 92 (i)] A gun turret, for use on aircraft in which the top of the fuselage 46, 47 surrounding the turret 48 is at a changing level, has means for automatically raising and lowering the turret hood as the turret is rotated, thereby adjusting the height of the turret to suit the changing level of the fuselage. In the form shown, the turret hood 48 is supported on a sleeve 59 connected to the piston member of a hydraulic jack 60, Fig. 3, arranged within a central pillar 54. This pillar is mounted for rotation on a bearing 51 fixed to the floor of the turret and carries a hydraulic training motor 56, the pinion 57 of which engages a fixed rack 58. The sleeve 59 carries a bracket 79 supporting the gun 77 and a bracket 63 supporting by a strut 66, the pivot 67 for the arm 12 of the gunner's seat 68. The seat is raised by a hydraulic jack 69 connected to the arm 12, and simultaneous elevation of the gun about its trunnions 78 is effected by a rod 74 connected by a link 71 with the seat arm 12. The valve 90, Fig. 3, controlling the central jack 60 for raising and lowering the turret hood is operated by an arm 86, the end of which carries a roller 88 running in a fixed cam groove 50 shaped to conform with the shape of the fuselage. The cam track is circular in plan, being horizontal over the lefthand half and rising and falling sharply over the right-hand half. The arm 86 is centralized by springs 89 and a change-over valve operated by rotation of the turret is provided to reverse the connections of the motor 56 when the roller 88 reaches the crest of the cam 50. Specification 458,204 is referred to.
Patent GB-311556-A (GB)
Title: Improvements relating to the delivery of slivers from textile machines into cans
IPC: B65H67/04
Filed: 1928-05-14
Abstract: 311,556. Mackie & Sons, Ltd., J., and Mackie, J. P. May 14, 1928. Coilers.-In an arrangement for delivering flax &c. slivers into cans having means for removing a filled can after a definite length of sliver has been laid in it, and replacing it by an empty can the cans 1, 2 are mounted on a carriage 10 sliding in guide rails 11. The carriage is reciprocated by a crank 15 and link 14. A second crank 30 having a smaller throw reciprocates a bar 26 in guides 27. This bar carries a fixed abutment 24 and pawl 25 adapted to engage a projection 23 on a pull bar 20 sliding in guides 21, 12. The pawl 25 is normally held out of engagement with the projection 23 by a rail 33 mounted on a spindle 35 which can be rocked by a spring-controlled vertical rod 37 and arms 36. At the appropriate moment the rod 37 is depressed by an arm 42 engaged by a pin 41 on a worm wheel 39 driven from the delivery mechanism. The pawl 25 then engages the pull rod and moves it in opposition to the movement of the carriage 10, whereby an arm 22 on the rod engages the can 2 and pushes the full can 1 off the carriage, replacing it by the can 2. Specification 311,564 is referred to.
Patent GB-1094053-A (GB)
Title: Method of rolling sheet steel
IPC: C10M173/02
Filed: 1965-04-02
Abstract: A cold-rolling lubricant consists of epoxidized soyabean oil or an emulsion thereof.
Patent GB-1090767-A (GB)
Title: Preparation of 2,3-dibromopropanol
Inventor: JENKNER HERBERT
IPC: C07C29/62
Filed: 1966-03-30
Abstract: 2,3-Dibromopropanol is prepared by mixing allyl alcohol with 2,3-dibromopropanol in a molar ratio of 1:1 to 1:8, introducing about an equimolar quantity, with respect to the allyl alcohol, of elemental bromine into the resulting mixture, and maintaining a reaction temperature of 10 DEG  to 20 DEG  C.
Patent GB-317417-A (GB)
Title: Improvements relating to the steering and screw propulsion of ships and other vessels
IPC: B63H25/38
Filed: 1928-05-15
Abstract: 317,417. Heppell, W. J. May 15, 1928. Rudders.-In ships with totally-immersed propellers, the main rudder a fixed immediately at aft the propeller c within the screw race, carries a relatively small pivoted flap or flaps b which cause a fluid pressure effect on each side of the fixed rudder to produce a lateral thrust. The main rudder and flap may be steam-lined, and the fairway bossing f of the propeller may be extended aft on the fixed rudder.
Patent GB-1208633-A (GB)
Title: Improvements in switch or combination fuse-switch units
IPC: H01H9/10
Filed: 1968-03-26
Abstract: 1,208,633. Linkwork. ARTIC FUSE & ELECTRICAL MFG. CO. Ltd., and C. ROWE. 29 May, 1969 [26 March, 1968], No. 14380/68. Heading F2K. [Also in Division H1] Electrical switch and fuse-switch operating mechanisms have a flat movable plate 8 slidable on and in contact with a flat fixed plate 7 to prevent warping or distortion of the operating mechanism. Operating handle 15, which is withdrawable, is connected to main drive link 17 pivoted on plate 7 at 18 and linked by pivot 20 to drive link 19 linked by pivot 21 to drive link 23 which is pivoted at 24 on plate 7 and which is linked by pivot 16 to springs 25 pivoted at 26 to plate 7. Joined to plate 8 is a pin 10 slidable in slot 12 in plate 7 and connected to link 23. When handle 15 is moved upwards, link 17 pivots clockwise, link 19 moves to the right, and link 23 pivots clockwise moving springs 25 over centre so they snap link 23 clockwise moving pin 10 and plate 8 with it to the "on" position. Also joined to plate 8 is a pin 9 sliding in slot 11 in plate 7 and movable in a slot 35 in a plate carrying "on-off" indicator 33 and pivoted at 34 to plate 7. As plate 8 moves to the right, pin 9 moves to the right, pivoting indicator 33 to the "on" position. In the "off" position, Fig. 1, pin 9 is located in a recess at the end of slot 35 which locks the indicator and plate 8 in the "off" position. It is released by a lever (not shown). Movable contact blades 27, 28 are attached to members 31, 32 connected to movable plate 8 and mate with fixed contacts` 29, 30. The linkwork is parallel to plates 7, 8 and midway between the contact assemblies.
Patent GB-1528836-A (GB)
Title: Photographic colour silver halide materials
IPC: G03C7/30
Filed: 1976-04-08
Abstract: 1528836 Photographic silver halide material showing interimage effect EASTMAN KODAK CO 8 April 1976 [10 April 1975] 14382/76 Heading G2C A photographic material comprises a support bearing at least 2 hydrophilic colloid-containing photo-sensitive silver halide emulsion layers primarily sensitive to different thirds of the visible spectrum and positioned to permit iodide ion migration therebetween during development, at least one of said layers comprising photo-sensitive silver haloiodide grains and at least one other of said layers containing surface fogged silver halide grains which are spontaneously developable independent of exposure to light. The material may contain a colour coupler. The other emulsion layer may contain 0.05-50% of the surface fogged silver halide grains based on the total weight of silver halide present in the layer. Each silver halide emulsion layer may comprise silver haloiodide. In the Example the material comprises faster and slower, red-, green-, and blue-sensitive silver halide emulsion layers. The material exhibits improved colour reproduction by the enhancement of certain interimage effects even when the affected layer has been given little or no exposure. Better balanced neutral images and more saturated and truer colour images can be obtained.
Patent GB-1414731-A (GB)
Title: Shock-absorbing bumper for motor vehicles
IPC: B60R19/32
Filed: 1973-03-26
Abstract: 1414731 Vehicle bumpers REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 26 March 1973 [27 March 1972] 14398/73 Heading B7J [Also in Division F2] A vehicle bumper comprises a bumper bar 1 resiliently connected at its ends 2<SP>1</SP>, 31 to vehicle chassis elements 2, 3, there being hydraulic cylinder shock absorbers V, V<SP>1</SP> connected between flexible blades L, L<SP>1</SP> on the bumper bar and pivots D, D<SP>1</SP> on the chassis, the shock absorbers V, V<SP>1</SP> each consisting of telescoping piston and cylinder elements 12, 11 with orifices 14 along a generatrix of the cylinder which open into a sheath 13 surrounding the cylinder, such that a central impact on bumper bar 1 will cause fluid to flow from both cylinders into the sheaths and damp the impact, but a lateral impact on the bumper bar will cause the shock absorbers to pivot and one of them contact a fixed block 10 or 10<SP>1</SP> whereby its sheath will be forced against the apertures 14 and the shock absorber rendered inoperative. The ends 2<SP>1</SP>, 3<SP>1</SP> of the bumper bar may be connected to elements 2, 3 by rubber blocks or by rubber strips, the elements in the later ease being provided with rollers or slides which move in guideways formed in the ends 2<SP>1</SP>, 3<SP>1</SP>. The hydraulic cylinders may have the pistons movable inside or outside the cylinders.
Patent GB-777090-A (GB)
Title: Improvements in or relating to milling machine
IPC: B23Q35/121
Filed: 1955-05-19
Abstract: 777,090. Copy-milling. ONSRUD MACHINE WORKS, Inc. May 19, 1955 [June 8, 1954], No. 14459/55. Class 83 (3). A contour-milling machine comprises a cutter-carrier 18 swingable on a carriage 12 about an axis 19 at rightangles to the relative path of travel of the carriage and a work-table 10, a rotary-cutter 14 on a parallel axis, a second carrier 25 which may carry a roller 26 and is interposed between the carrier 18 and a track 27 on which the carrier 25 bears, and jack-means 34 for moving the carriers to- and-from each other. The track 27 is adjusted to be truly horizontal by screws 30, 31. As the carriage 12 is traversed by rack-means to cut a wing spar, the jack is adjusted to vary the position of the cutter by a motor 37 which, through bevel gears, rotates a nut 35. The motor is controlled by a template 50 having one edge 53 contoured and the other formed with a driving rack engaged by a worm 55 driven by the mechanism traversing the carriage 12 or by a rack on the table 10. The template is engaged by a reciprocating tracer 58 which controls the position of the tool and a double-armed tilting-tracer which decreases or increases the speed of the head 12 according to the slope of the template. The carriers 18, 25 are moved to an inoperative position by a fluid-pressure device 21 which, in operation, also assists in relieving the pressure of the roller 26 on the track 27.
Patent GB-212172-A (GB)
Title: Improved parcel holder for use on vehicles
IPC: B60R9/00
Filed: 1923-06-01
Abstract: 212,172. Bergstr÷m, J. F. O., and Brunzell, B. J. June 1, 1923. Parcel holders for use on motor vehicles &c. comprising one or more spring-controlled rotatable caps, rollers, or the like each fitted with a strap, cord, or the like adapted to be passed around the parcel, are characterized by a locking or clamping device co-operating with the strap &c., and preventing further outward movement thereof after it has been passed around the parcel. As shown, two caps, rollers &c. 3 rotatable upon a fixed shaft 4 within a casing 1, carry straps 2 and are controlled by springs 5, anchored at their inner ends. The looking or clamping device comprises a roller 10 mounted eccentrically upon a pin 9 which has a crank arm 13 and, by a shoulder 11 and a recess 12, is connected to the roller with lost motion. The arm is depressed by a spring 14 so that the roller is normally jambed against the strap, but by pressure upon a guided plug 15 the arm can be raised and the strap released. The outer portion of the plug is enclosed in an elastic cap 16.
Patent GB-864184-A (GB)
Title: Improvements in or relating to cement applying apparatus
IPC: B31B19/62
Filed: 1956-05-10
Abstract: An apparatus for applying cement to a workpiece comprises mechanism for feeding a rod of thermoplastic cement progressively into the apparatus, heating means for melting the cement applying means for forming a stripe of molten cement upon the work as it is fed past such means, and pump means for urging molten cement to the applying means, the applying means, rod feeding mechanism, pump means and heating means being mounted e.g. on a common support for adjustment transversely of the direction of feed of the work to adjust the position of the stripe of cement thereon. The applying means may comprise a nozzle mounted for swinging movement relative to a support, so that it is held in contact with the work, against the action of a restoring means, by frictional action of the cement in the pump means, and is swung out of contact with the work when the drive to the pump means ceases. The latter movement may also bring about the closing of a valve thereby interupting escape of the cement from the nozzle.  The invention is described as applied to an apparatus for applying a line of adhesive to each of two webs for forming a bag and liner, respectively by nozzles 22 and 20.  Rod cement 10 is fed by wheels 312, 314, driven through friction clutches, into an electrically heated casing 16 in which is a <PICT:0864184/III/1> <PICT:0864184/III/2> driven disc 70, partly encircled by tapering channels 76, in which the cement is melted.  It is then forwarded by pumps comprising gears 90, 92 and provided with by-pass valves, to the nozzles 20, 22.  The assembly shown in Fig. 3 is pivoted on a pivot 52 carried by a support 50 (Fig. 7) which is adjustable transversely of the direction of movement of the webs on a bar 40 carried on the machine frame.  The drive shaft 54 of the gear pump is coaxial with the pivot 52, and, when driven, causes the applying assembly to swing in a clockwise direction, causing the nozzles 20, 22 to contact the work, and valve stems 268, controlling the admission of cement to the nozzles, to be lifted from their seats 270, against the action of springs 286, as a result of collars 284 on the valve stems engaging fixed abutments 308.  The position of the nozzle 20 is adjustable axially of the valve stem by means of a screw 250.  A latch 180 is provided for holding the applying assembly in inoperative position.  Specifications 705,208 and 749,892 are referred to.
Patent GB-329152-A (GB)
Title: Improvements relating to thermionic valves or electron discharge tubes
IPC: H01J7/18
Filed: 1929-05-09
Abstract: 329,152. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Dec. 15, 1928, [Convention date]. Vacuum tubes; metallicvapour apparatus; R÷ntgenray tubes. - The removal of residual gas or gaseous impurities in a radio valve, R÷ntgen-ray tube, or rectifier is facilitated by arranging within the tube. a member not acting as an electrode and consisting partly or wholly of zirconium, said member being so shaped and disposed that different parts thereof are maintained at different temperatures during the operation of the tube. The Figure shows a rectifier 3 having a filling of one or more rare gases and a metal vapour and provided with a zirconium wire 11 carried by a support 9 and extending partly into a Wehnelt cathode 8. Specification 300,403 is referred to.
Patent GB-1039778-A (GB)
Title: Papermaking method and apparatus
IPC: D21F3/02
Filed: 1964-04-08
Abstract: A method of removing water from a wet paper web comprises passing the web through the nip of a pair of press rolls while supported on an endless carrier belt which is substantially incompressible at the pressures exerted by the press rolls and which consists of two layers: a base layer which is permeable and has sufficient voidage volume to receive the water expressed from the paper web and a barrier layer which contacts the paper web and which is sufficiently permeable to allow the water to be forced therethrough into the base layer but is of sufficiently low permeability to prevent or restrict return flow of the water from the base layer into the paper web.  The fibres of the carrier are selected or treated to have the property of not absorbing water, the carrier comprising e.g. nylon or polyester yarns.  The barrier layer may comprise the nap raised from a woven fabric by buffing or may be a separate woven fabric united to the base layer by heating, sewing or glueing.  Alternatively the two layers may be united as one fabric in the weaving process.  The barrier layer may be treated, e.g. with certain fluorocarbons, silicones, long chain nitrogen compounds, zirconium waxes or thermosetting p  resins, to increase the wetting angle of the surface in relation to water and thus to reduce its permeability.  The paper web is separated from the carrier felt immediately after the nip of the press rolls to minimise the time available for rewetting of the paper.  The carrier felt may be cleaned by a water shower and dried by means of a suction box, an air jet and/or by passage around a small diameter roll causing centrifugal throwout of water.
Patent GB-640143-A (GB)
Title: Improvements in or relating to steel for resisting high temperatures, chiefly for gas turbines
IPC: C22C38/52
Filed: 1946-05-15
Abstract: A creep-resisting austenitic steel, applicable to the manufacture of parts of gas turbines, has the following composition:-Cr 14-20 per cent, Ni 7-18 per cent, W between 3 and 10 per cent, Co 4-15 per cent, C 0.1-0.6 per cent, Fe and the usual impurities the remainder, the steel having been heated for a few hours between 855 and 1175 DEG C. 0.5-2.5 per cent in total of Ti and/or Nb may be present in the steel.  The treatment may alternatively comprise quenching in air, water or oil from 1150-1175 DEG C, and annealing for 2-8 hours at 855-950 DEG C followed by slow cooling in the furnace.  Forged, rolled, cast or welded parts may have one or more successive heatings between 855 and 950 DEG C for 2-8 hours followed by cooling in air, water or oil.
Patent GB-241132-A (GB)
Title: Improvements in and relating to safety hooks
IPC: B66C1/36
Filed: 1925-06-08
Abstract: 241,132. Mathys, A. W., (Dunn Manufacturing Co.). June 8, 1925. Hooks, spring, safety, and closed. - A closed hook of the type in which the hook member is pivotally mounted on a shank which is integral with the mousing member or keeper, comprises a hook 16 pivoted to a shank 10 and integral keeper 19. The shank 10 is swivelled in the lower end of a loop 12 on ball bearings. Inside the hook body a lever 23 having a tooth 30 for engagement with a corresponding recess in the shank, is pivoted at 25. A spring 27 presses on the opposite end of the lever 23. Part of the lever 23. formed as a finger grip 24 projects into a transverse hole 20 in the hook member. Normally the hook is locked in the closed position, but on releasing the tooth 30 by pressing the grip 24, the hook can be turned in either direction about the pivot 15 and maintained on either side of the closed position by allowing the tooth 30 to engage with one of the adjacent surfaces of the shank. A drain hole 29 is provided through which the spring 27 can be inserted in assembling the hook.