baber/WOPTO huggingface dataset:
Patent GB-609071-A (GB)
Title: Improvements in or relating to thermostatically operated switch devices
IPC: H01H37/36
Filed: 1946-03-05
Abstract: 609,071. Temperature-responsive actuating elements. BRITISH THERMOSTAT CO., Ltd., and SHERLOCK, J. E. March 5, 1946, No. 6817. [Class 64(ii)] [Also in Group XXXVII] A snap - action switch is actuated by a metallic bellows 5 connected by a capillary tube 4 to a phial 3 immersed in an electrically - heated liquid, an end-piece 8 of the switch casing 1 being adjustable to vary the operating temperature of the switch. A flanged tubular member 9, biassed against the bellows by a spring 13, receives a spring- urged rod 17 having a double-coned ramp 21 which actuates a snap-action switch in the manner described in S p e c i fication 525,106, [Group XXXVII]. The endpiece 8 is threaded and is rotated by a pointer 27, moving over a scale on the casing 1, to vary the initial length of the bellows 5, and it is provided with a clamping screw 31. A stop 29 limits movement of the pointer 27.
Patent GB-747219-A (GB)
Title: Improvements in or relating to tubulous vapour generating and vapour heating units
IPC: F22G5/20
Filed: 1954-03-09
Abstract: 747,219. Water-tube steam boilers; steam superheaters. BABCOCK & WILCOX, Ltd. March 9, 1954 [March 9, 1953], No. 6825/54. Classes 123(2) and 123(3). [Also in Group XXIX] A water-tube boiler has twin combustion chambers 10, 12, separated by a division wall 20 formed of steam generating tubes which are offset at 206 to allow gas to pass from one chamber to the other, the chambers being lined with steam generating tubes which, together with the division wall tubes, extend from lower headers 18, 18<SP>1</SP> to an upper steam and water drum 14. Chambers 12, 10 are fired respectively by pulverized coal burners 22, 24 and 26, 28, the gases flowing from the top of chamber 10 laterally through a pass locating a secondary superheater 68 and then downwardly through a pass in which is disposed a primary superheater 80 and which is provided at its lower end with flow-controlling dampers 173. Similarly, the gases from the top of chamber 12 flow through a lateral pass locating a reheater 118 and a downpass controlled by dampers 175 and locating a second primary superheater 92. Steam from drum 14 divides into two streams, one flowing serially through a header 82, downpass lining tubes 86, 90, the superheater 80 and an interstage attemperator 116 to the inlet header 70 of superheater 68 wherein it is joined by the other stream which has flowed through header 94, downpass lining tubes, superheater 92 and interstage attemperator 108. The united streams pass through superheater 68 to the final outlet header 72. Each chamber 10, 12 has its own flue gas recirculation system, gas being withdrawn from the bottom of the respective downpasses by fans 174, 142 which supply it to ducts 178, 148 whence it enters the respective chambers through ports 156. The operation of the boiler is controlled automatically by a fluid pressure servomotor system (see Group XXIX), which controls the firing rate of the burners in accordance with the demand for steam and, over a wide range of load, holds the temperatures of superheat and reheat at the desired value by simultaneously controlling the distribution of heating gas between the chambers 10, 12, by operation of dampers 173, 175, the flow of gas recirculated to each chamber and the supply of water to the attemperator sprays. Specification 461,389, [Group XXIX], is referred to.
Patent GB-557528-A (GB)
Title: Improvements in hydrometers
IPC: G01N9/12
Filed: 1942-05-20
Abstract: 557,528. Hydrometers. COLLIE, J. H. May 20, 1942, No. 6826. [Class 97 (iii)] A hydrometer of the kind comprising a float having a float-part proper and a calibrated stem has the float constructed of a non- frangible plastic and comprises a tubular body part open at one or both ends the ends being closed by a cap or caps in a fluid tight manner. The float of transparent plastic comprises the float proper 10, the stem 11 and end caps the lower cap 12 of which is provided with spiral ribs to cause the float to rotate in known manner. A metal weight. disc 14 is provided and the weight is adjusted by metal balls 16. A scale 15 is provided. The hydrometer chamber 18 also of transparent plastic has an upper part cemented at 19 and a neck 18a adapted to be attached to a rubber bulb for the purpose of drawing a charge of liquid into the chamber through the open end 18b.
Patent GB-1390023-A (GB)
Title: Sealing bags
IPC: B65B31/06
Filed: 1971-03-15
Abstract: 1390023 Sealing bag mouths R D KIPPING and D CARPENTER 8 March 1972 [15 March 1971] 6901/71 Heading B5K [Also in Division B8] The mouth of a bag 17 is sealed by placing the open mouth between pairs of sealing members 28, 29 and clamping members 33, 34, introducing one or more tubes 23, lowering the upper sealing and clamping members 28, 34 so that the clamping members 33, 34 clamp the bag mouth, withdrawing air and/or introducing inert gas, e.g. CO 2 , through the tube(s) 23 and lowering further the upper sealing member 28 so that the bag mouth is held between and sealed by the members 28, 29. The upper sealing and clamping members 28, 34 are supported on a pair of pivotable arms 21 actuated by a foot pedal (14, Figs. 1, 2), via a rod 16. The clamping member 34 may, as shown in Fig. 3, be provided with pins 36 which can slide within mounting blocks 37 against springs 38 so that the sealing member 28 can undertake the further lowering through downward movement of the arms 21. Alternatively, as shown in Fig. 7, the sealing member 28 may be similarly mounted so that upon withdrawal of the tube(s) 23, it is automatically urged downwards to clamp and seal the bag mouth. When the bag is being fed between the members 28, 29, 33, 34 the tube(s) 23 is held free of the lower clamping and sealing members 33, 29 by a pip 41 engaging a cam bar 40. To allow the mouth to be clamped either the cam bar 40 is resilient or the tube(s) 23 is partially retracted, Fig. 4, to disengage the pip 41 and cam bar 40 and allow the tube(s) to fall onto the lower clamping member 33. Downward movement of the arms 21 actuates a microswitch 43 energizing an electric pump (13, Fig. 1), connected to the tube(s) 23 via a flexible tube 15 and a microswitch 31 energizing a heating element in the member 29 via a timer 30. The clamping member 34 which is recessed (39, Fig. 6), to accommodate the tube(s) 23 comprises a rigid bar provided with a resilient facing 35 and the clamping member 33 comprises a strip of rubber. The tube(s) 23 which may have a flattened mouth portion 24 is actuated by a band layer 26. The bag 17 may be of plastics material and contain cooked meat. The bag may be sealed by welding the bag walls together or by activating heat-sensitive adhesive.
Patent GB-124741-A (GB)
Title: Improvements in Locomotives and similar Vehicles.
IPC: B61C9/06
Filed: 1919-03-20
Abstract: 124,741. Aktiebolaget Ljungstr÷ms Angturbin. March 22, 1918, [Convention date] Driving-gear of crank-type, coupling-rods, and like mechanism, arrangement of.-In driving- mechanism in which two bearings are provided for the crank-shaft of the spur driving-gear, one for taking up reciprocating stresses and the other the pressure of the driving-mechanism, the driving-axle 1 is mounted in bearings 10 connected to the main frame by links 9 which take up the reciprocating stresses of the crank 4. The spurgear 2 drives the axle by means of a toothed coupling sleeve 12, and is mounted on a boss 13 carried in separate bearings 3. In a modification, the framework carrying the spur-gearing is bodily movable, and is connected to the main frame by similar links 9. The framework is supported by bolts permitting slight horizontal movement under the control of a radius rod.
Patent GB-589256-A (GB)
Title: Improvements in lubricating systems of engines
IPC: F01M11/06
Filed: 1945-03-20
Abstract: 589,256. Lubricating systems. BATEMAN, P. J. March 20, 1945, No. 7054. [Class 12 (iii)] A forced lubrication system for internalcombustion engines more particularly for aircraft comprises a pump circuit for passing hot oil, draining into the engine sump, to a cooler, an independent pump circuit for pumping to the engine parts requiring lubrication cooled oil taken from the sump adjacent the return pipe from the cooler or from a tapping to such return pipe, and an independent supply line for maintaining a constant quantity of circulating oil by allowing a flow of make-up oil to the sump from a remote tank or a return flow of excess oil to such tank. As shown an engine sump 1 is divided by a partition 16 having a small throughflow aperture 18 into a hot-oil portion 1h and a cooled-oil portion 1c, the latter having a cover 17 to prevent direct entry .of hot oil draining from the engine. A pump 2 draws hot oil from the portion 1h for delivery to a cooler 4 whence it passes to the cooled oil portion 1c for delivery to the lubrication points by an independent pumping circuit including a pump 11. Make-up oil from a storage tank 8 is fed by an independent line 9 to the hot-oil portion 1h when the level falls sufficiently to operate a floatcontrolled valve 7 while should the level rise, above normal the float-controlled valve diverts the delivery of pump 2 away from the cooler 4 back to the storage tank 8 so that excess oil is pumped back to such tank. The storage tank is located at the remote side of a fireproof bulkhead 10. The usual relief valves 6, 15 are provided on the delivery sides of the pumps 2, 11 and to prevent flooding from the storage tank 8 when the pumps are stopped a non-return valve 19 is inserted in the pipe line from the pump 2. The pumps are arranged on the bottom of the sump so that their inlets are always covered. The pumps are driven in tandem from the engine by the shafts 12h, 12c but are quite independent as to capacity and pressure and draw their supply independently of one another by reason of the through-flow passage 18 connecting the hot and cold oil portions 1h, 1c of the sump. If desired a separate pump reversible by the float may be used for the drawing off and returning of oil to the storage tank.
Patent GB-492037-A (GB)
Title: Improvements relating to apparatus for feeding articles in sorting and like machines
IPC: B07C5/342
Filed: 1937-03-10
Abstract: 492,037. Delivering rice &c. from hoppers ; sorting-mechanism ; centrifugal feeding - machines. ELECTRIC SELECTORS, Ltd., and HORSFIELD, W. R. March 10, 1937, No. 7107. [Class 78 (i)] [Also in Group II] For distributing rice and like grains supplied in bulk from a hopper so that they are delivered singly, for example past photo-electric-cell sorting-mechanism, a centrifugal disc is used in combination with an inverted spiral guide. Thus, rice delivered from the hopper 10 by a rotating tube 12 strikes a ledge 24 in the shoot 22 which loosens adhering dust for removal by an upward current of air. The dust-freed grains then fall through an orifice 44 on to the rotating plate 26 which co-operates with a non-rotating cover member having a spirally-ribbed under surface 46. The surface of the, rotating plate preferably is curved so that as the centrifugal force increases with the progress of the grains towards the periphery, an increased gravitational drag is introduced, so that the resultant of these two forces is at a constant angle to the normal to the surface. This is stated to result in the grains becoming spaced apart with their longitudinal axes all in the same direction, so that they are delivered singly to the L-shaped guide 52 and carried therealong by their momentum at right-angles to the plane of the paper past the photo-electric-cell sorting-apparatus. As shown, the cross-sections of the curved surfaces of the member 26 are arcs of circles of which the centres are displaced from the axis 28, which approximates to a concave toric shape forming the best construction. The spiral ribs 46 which just clear the curved surface and are normal thereto at all points, are made as smooth as possible. The plate 26 and tube 12 are both driven by belting from the shaft 74. The surface of the plate is grooved or roughened and it has a very narrow flattened portion at the outer edge of its upper surface. Specification 492,035, [Group XL], is referred to.
Patent GB-806834-A (GB)
Title: Nut flake substitutes
IPC: A23L29/20
Filed: 1955-03-11
Abstract: Imitation nut flakes for placing on bakery goods, e.g. the Netherlands butter and almond biscuits "pitmoppen" and "amandelkoekjes," during their baking are made by preparing shapes resembling flakes of nuts from an aqueous paste of starchy material and drying these shapes.  Milk, milk powder, sugar, oils and fats, and thickening and water-binding agents such as water-soluble cellulose ethers and cellulose esters, gelatine, glycols and higher alcohols may be incorporated in the paste.  A paste according to an example, contains a boiled starch preparation of white beans or rice with water, milk or skimmed milk powder, arachis oil, carboxymethyl cellulose solution, wheat flour, sugar, and almond or hazel-nut flavouring.
Patent GB-462932-A (GB)
Title: Improvements in or relating to kinematograph film strips, more particularly for colour film
IPC: G03D15/00
Filed: 1936-03-10
Abstract: 462,932. Kinematograph picture films. NOACK, F. March 10, 1936, No. 7266. [Class 98 (ii)] A kinematograph film for combination with one or more other films in accurate coincidence has overlapping transverse slits or perforations to allow of longitudinal stretching. As shown, the middle colour-component film 2, bearing the sound record 4, has no transverse slits, but the other colour-component films 1 and 3 have slits 5, oblique cuts 6, oppositely disposed in the two films 1 and 3, being provided across the sound track. In cementing the films together, the films are brought to uniform length by register pins engaging the perforations 7. The film 1 may also be an imbibition printing film used to print on to the film 2. Various forms of slits are described, and the register pins may be in the form of toothed chains. The production of films with a double r¶le to be played by one person is referred to.
Patent GB-539124-A (GB)
Title: Improvements in or relating to valve assemblies
IPC: B64C13/24
Filed: 1940-04-23
Abstract: 539,124. Valves. PARKER, A. LA R. April 23, 1940, No. 7274. [Class 135] A multiple way valve having a valve member pressed into contact with its seat by fluid pressure acting on the opposite face has means for byepassing this pressure to facilitate displacement of the valve member. As shown in Fig. 5 a rotary disc valve 39 has arcuate recesses 17, 18 one of greater cross-section than the other adapted to connect a pair of ports leading to the opposite sides of a double-acting piston alternately to pressure and exhaust conduits. The valve actuating spindle 26 pivoted in the valve seat 20a carries a transverse pin 41 adapted to work with lost-motion between diametrically opposed pairs of upstanding lugs on the valve member. Inlet pressure is admitted to the back of the valve member through a port 22 and is exhausted through a port 52 under the control of a valve 43. This valve is mounted on a lever pivoted on the pin 41 and is opened against the action of a spring 44a during the initial movement of the spindle 26 by a cam surface engaging a pallet on the face end of the lever. The cam surface is formed on a plate 32 held against rotation in a cap 21 by a radial projection backing between lugs on the cap. The valve has projections adapted to co-operate with a stop pin screwed into the cap to limit its movement to 90 degrees. During the movement of the valve from one extreme position to the other the valve 43 remains open and so'relieves the pressure on the back of the valve member and also maintains a byepass connection between the supply and exhaust conduits. In the modification shown in Fig. 9, the byepassing valve is housed in a chamber formed by recesses 71, 72 in the valve member and actuating spindle respectively and is opened by depressing a main valve operating handle 83 pivoted at 82 to an arm 81 secured to the spindle 61 of the main valve. Ball catches 70 arranged in recesses on the back of the valve member co-operate with depressions in a plate 62 to hold the valve member in its adjusted position.
Patent GB-582771-A (GB)
Title: Improvements in cases for maps, documents and the like
IPC: A45C3/02
Filed: 1944-04-20
Abstract: 582,771. Portfolios for maps. MADGER, A. W. April 20, 1944, No. 7318. [Class 146 (i)] [Also in Group XVII] A case or portfolio for maps, charts, documents and like sectional folded sheets consists of a top tray 1 and the bottom tray 2 hinged to diagonally opposite edges of a frame 3 so that they open as shown, each tray having its three free edges secured to the frame 3, e.g., by sliding clasp fasteners. The container may be constructed of wood, metal or plastic. In the example shown, the trays 1, 2 are of leather or fabric backed with cardboard or otherwise stiffened and lined, and the frame 3 consists of a flexible tape or web serving as foundation for sliding clasp fastener elements 4, 5, the corresponding elements 4a, 5a being carried by tapes or webs 1b, 2b on the edges of the trays 1, 2. The case may be carried in the pocket. Specification 473,939 is referred to.
Patent GB-1424668-A (GB)
IPC: G05D7/01
Filed: 1972-02-18
Abstract: 1424668 Fluid-pressure servomotor systems; electric rectroactive control UNITED GAS INDUSTRIES Ltd 13 Feb 1973 [18 Feb 1972] 7565/72 Headings G3P and G3R A gas regulator comprises a valve controlled so as to maintain substantially constant a factor C which varies with the downstream temperature and pressure and a gas law deviation co-efficient as defined in the Specification. When used with a gas of constant composition, e.g. natural or manufactured gas, the effect of maintaining factor C constant is to maintain the downstream density constant so that a volume metering device may be more accurately used. In one arrangement the regulator comprises a valve 12 in gas pipe 11, the valve having a member 15 co-operating with annular seat 14 and movable via lever 17 by diaphragm 18. The latter is subjected on its lower face via pipe 22 to the gas-pressure downstream of valve 12 and on its upper face via pipe 40 to a control pressure transmitted by a sensing device 23. The latter comprises a sealed bellows 25 filled, where gas-pressures above 5 atmospheres are expected, with gas the same as that flowing in pipe 11 or a gas of comparable characteristics. For pressures below 5 atmospheres, bellows 25 is filled with helium. The bellows is surrounded by a container 26 filled with liquid and extending into the gas pipe, the downstream gas-pressure acting on the liquid via connection 34. Expansion or contraction of bellows 25 with changes in temperature or pressure of the flowing gas is transmitted via pivoted lever 35 to a valve member 41, 42 controlling the gas inlet and outlet ports 38, 39 of a chamber 37. The bellows thus varies the control pressure in the latter which adjusts valve 12 to restore the bellows to its original volume and maintain the density constant in the flowing gas downstream of valve 12. The initial setting of bellows 25 can be adjusted by screw 31 acting on spring 30. In a  modification sensor 23 is replaced by a tuning fork type density meter which measures the downstream gas density as an electrical frequency. The signal is then compared directly, or as an analogue, with a reference value and the gas valve electropneumatically actuated to restore the density to its desired value.
Patent GB-123892-A (GB)
Title: Improvements in, and connected with Lantern Slides.
Inventor: ELDER ROBERT GEORGE
IPC: G03B21/64
Filed: 1918-05-06
Abstract: 123,892. Elder, R. G. May 6, 1918. Optical - projection apparatus. - An an. nouncement lantern slide is mounted to move vertically in the stage of a projection lantern. The slide A is suspended by a cord a<1> which passes over pulleys and is wound on a spring balance e. Guides for the slide are attached to the ordinary slide carrier contained in the lantern.
Patent GB-1500662-A (GB)
Title: Electronic wristwatch
IPC: G04F5/06
Filed: 1976-02-26
Abstract: 1500662 Liquid crystal compositions SUWA SEIKOSHA KK 26 Feb 1976 [7 March 1975] 7692/76 Heading C4X [Also in Divisions G3 and H1] A wrist watch has a liquid crystal display driven at 1À5 V using twisted nematic material between two polarizers (27, 28, Fig. 3, not shown). A number of suitable display materials are disclosed, based on P-cyanophenyl-P'-alkylbenzoate compounds with the addition of P-n-hexyloxyphenyl- P'-n-butylbenzoate, or other related phenyl benzoate derivatives, or MBBA or EBBA.
Patent GB-644830-A (GB)
Title: Improvements in closed curved frames of flanged section, such as rings and ovals, and method of producing same
IPC: B21D7/08
Filed: 1948-03-13
Abstract: 644,830. Curving. THOMPSON, J. S., and THOMPSON, W. G. March 13. 1948, No. 7719. [Class 83 (iv)] In a method of forming a closed curved ring of flanged section for ship construction a flat tapered flanged strip A is passed between rolls B, B<SP>1</SP> grooved to receive the flange A<SP>2</SP> and a roll C of cylindrical form. By tilting the roll C the inner surface of the ring is flared outwards from the dotted position, Fig. 4, and the outer surface is changed from taper to cylindrical form.
Patent GB-538298-A (GB)
Title: Improvements in or relating to retractable undercarriages for aircraft
IPC: B64C25/12
Filed: 1940-04-30
Abstract: 538,298. Aircraft undercarriages. FAIREY AVIATION CO., Ltd., and COSTIGAN, F. J. April 30, 1940, No. 7777. [Class 4] A retractable undercarriage in which a wheel is adapted to be swung laterally upwards and slightly rearwardly to a position between the spars of an aircraft wing, comprises two jointed struts, pivoted to the oleo-leg and to the aircraft, which lie respectively in a transverse and a fore-and-aft plane when the wheel is lowered, the first mentioned strut being connected with a hydraulic jack whilst the joint of the second mentioned strut is connected by a link to a point on the aircraft offset from said fore- and-aft plane towards the same side as the other jointed strut. An oleo-leg b is pivoted about a transverse pivot upon a tubular member e mounted in bearings so as to be rotatable about a fore-and-aft axis on the aircraft. The leg b is connected by a universal joint g to the lower member h of a jointed strut h, j pivoted about a fore-and-aft axis k. An extension q is separately pivoted about the same axis k with lost motion provided by abutments r, s respectively on the extension q and the upper part j of the strut. A hydraulic jack u is connected between the extension q and a bracket x on the tube e for breaking the strut and raising the leg, the lost motion of the extension q being utilized for withdrawing a locking bolt co-operating with a quadrant n on the part h of the strut. The oleo-leg b is also connected to a bracket on the tubular member e by a jointed strut 13, 14, the cental pivot 17 of the strut being connected by a link 18 and a universal joint 19 to a fixed point on the aircraft wing, offset as shown from the fore-and-aft .member e, so that the leg b is moved rearwardly as it is raised. The extension q is fast upon a short fore-and-aft shaft carrying a spring-urged arm 21 co-operating with a hook 23 on the leg b to secure the leg in its raised position. initial movement of the jack u disengaging the arm from the hook before lowering the leg. A bracket 25 on the locking bolt of the strut h, j actuates a switch 26, when the bolt shoots home, to actuate an indicator showing that the undercarriage is down.