baber/WOPTO huggingface dataset:
Patent GB-365824-A (GB)
Title: Improvements in machines for treating floors
IPC: A47L11/18
Filed: 1931-02-11
Abstract: 365,824. Floor-cleaning machines. GUINAND, P., Wolfhalden, Switzerland. Feb. 11, 1931, No. 4217. Convention date, Feb. 11, 1930. [Class 138 (i).] A floor-cleaning machine comprises an electric motor 3, Fig. 1, the vertical shaft 11 of which is secured to one or more horizontal shafts 12 each of which carries rotatably-mounted brushes 19 adapted when the motor operates to be rotated by engagement with the floor. The motor is adjustable by means of a screw-threaded, spindle 6 engaging a bracket 4: which is adapted to slide in a guide 5. The shaft 12 is mounted on ball bearings on a ring 14 secured to the motor shaft 11, and is capable of limited rocking movement. The base of the machine is provided with bundles of bristles 22 adapted to support the machine. Two receptacles 24 (of which only one is shown) contain polishing wax or cleaning liquid, the supply of which is controlled by means of a screw-threaded spindle 28. The side wall of the machine may be formed with an opening 31 closed by a detachable hood which may be connected to vacuum apparatus. In the modification shown in Fig. 5, the motor shaft has mounted thereon a slidable sleeve 41 with a key 43 engaging a groove 42 in the shaft 40. The sleeve is formed with extensions 44 adapted to receive bolts 45 carrying brushes 53, the bolts being secured by pins 48. The brushes are pressed against the floor by the action of a spring 54. To prevent the sleeve 41 with the brushes from being detached when the machine is lifted, a stop is provided on the end of the motor shaft, comprising a pair of levers 56 pivotally mounted on a pin 55 and pressed outwardly by a spring 57 so that the rods 58 prevent detachment of the sleeve 41. To remove the sleeve the ends 58 are pressed inwardly the spring 54 thrusting out the sleeve. A fan 86 may be provided for conveyng dust to a receptacle (not shown). A receptacle for polishing wax may also be provided with means for heating the wax or otherwise facilitating its discharge.
Patent GB-451775-A (GB)
Title: Light metal piston for heat engines
IPC: F16J1/18
Filed: 1935-02-11
Abstract: 451,775. Gudgeon pins. SCHUMANN, B., 97, K÷nigsbr³ckerstrasse, Dresden, Germany. Feb. 11, 1935, No. 4375. [Class 122 (i)] In a light metal piston in which the gudgeon pin is fixed in one boss a<1> and slides in a bush b<2> in the other boss, the bosses are bored to the same diameter, the pin being either enlarged at the fixed end or reduced at the sliding end. The bush b<2> may extend beyond the boss a2 and a gap d may be provided between its end and the shoulder on the pin to prevent contact and consequent distortion due to expansion under heat. Adjacent edges of the gap may be stepped or inclined to prevent scoring the small end bearing. A pin g in the bush extends through an elongated hole in the pin and locks these parts together, the gap d being maintained by a spring m<1> abutting a member k<1> on the gudgeon pin and the bush end respectively. In a modification, Fig. 5, a spring m is interposed between a cap p on the gudgeon pin and a member k<2> abutting the pin g<1>. Alternatively, a spring m<3>, Fig. 6, may be inserted between the pin g<2> and the inner end of a member g<3> sliding in the gudgeon pin. An additional interlock between the bush and gudgeon pin may be provided by a projection h on the one engaging a recess i in the other. Specification 406,516 is referred to.
Patent GB-592955-A (GB)
Title: Improvements in absorption refrigerating apparatus
IPC: F25B33/00
Filed: 1945-02-22
Abstract: 592,955. Refrigerating. AKTIEBOLAGET ELEKTROLUX. Feb. 22, 1945, No. 4446. Convention date, March 17, 1944. [Class 29] A vapour generator unit, for absorption refrigerating apparatus, is encased by heat insulation 11 within a container 10, and comprises a heat source positioned in a closed pipe 14 which is arranged to provide heat by conduction to a column of absorption solution contained within conduit 22, the supply of heat being restricted to the middle portion of the liquid column, that is intermediate the levels I and II. The strong liquid flowing from the absorber through pipe 18 enters the liquid heat exchanger, which is formed as a closed helix around the lower aperture 13 of the heating pipe 14, and is conveyed by an inner pipe to the pump 19, absorbing heat from the downwardly flowing degasified solution from the liquid column which is being conveyed to the absorber through the outer coils of the liquid heat exchanger and pipe 17. The pump 19 maintains a liquid column in the conduit 22, thus between the boiler level 25 and level II the liquid is of high concentration and lower temperature thereby forming a column for rectifying the vapours.
Patent GB-668584-A (GB)
Title: Improvements in or relating to electric pulley blocks
IPC: B66D3/22
Filed: 1950-02-22
Abstract: 668,584. Pulley-hoists. TICHELLY, L. J. Sept. 22, 1950. [Feb. 22, 1950] No. 4509/50. Class 78 (v). In a motor-driven pulley-hoist the electric motor is positively connected to the chain tackle by a resilient coupling comprising a driving member and a driven member bonded together by a rubber member capable of distortion under applied torque. The driven member of the coupling consists of a hub 10 with a tapered flange 11, a rubber ring 12 and a ring 13. The cross-section of the ring 12 is a trapezium, the non-parallel sides of which are bonded to the flange 11 and ring 13. Two dogs 14, Fig. 3, are formed on the inner face of the hub 10 and extend to its periphery. Each dog extends approximately through an arc of sixty degrees. The driving member of the coupling comprises a hub 19, the outer face of which carries dogs 23 which enter the spaces 24 between the dogs 14. The driving and driven members are connected by bolts passed through holes 25 in the flange 21 of the hub 19 to engage tapped sockets 26 in the ring 13. The holes and sockets are so positioned that when no torque is applied, the dogs 23 are midway between the dogs 14. The hub 10 is splined to the input shaft of the chain tackle and the hub 19 is in splined connection with the output shaft of the usual reduction gear driven by the motor. If the rubber ring 12 fails, the dogs 14, 23 will engage and sustain the load.
Patent GB-1493956-A (GB)
Title: Air bleed devices for internal combustion engines
IPC: F02M23/09
Filed: 1975-02-03
Abstract: 1493956 Adding air to recirculated crankcase gases in I C engines GRANCOR Inc 3 Feb 1975 [8 Feb 1974] 4563/75 Heading F1B In an I.C. engine having an intake chamber with a throttle valve, there is provided an extra air inlet having two ducts 90, 92. One of these ducts 90 is permanently open to atmosphere but its cross-section may be adjusted by a set-screw 97 while the other 92 is opened or closed depending upon the pressure in the intake chamber measured adjacent the throttle valve. Preferably the extra air is supplied from a conduit 74 which recirculates crank-case gases and which opens into the intake chamber. The pressure in the intake chamber may be taken from the vacuum advance conduit 64 leading to a distributer and applied to a diaphragm 108 to control extra air-flow in the duct 92. All the extra air is drawn through an annular filter 96.
Patent GB-1097581-A (GB)
Title: Improvements in and relating to volumetric measuring apparatus
IPC: B01L3/02
Filed: 1963-02-05
Abstract: Pipettes and burettes comprising a precision bore tube are graduated by applying a die to the tube and adding material to the tube or removing material from the tube at a pair of graduations thereon, wherein the graduations in the die correspond to a predetermined volume within the tube.  The graduation may be marked through die graduations in the form of fine slits, by sand-blasting or etching with hydrofluoric acid.  Alternatively a coating of curable plastics material may be applied to the tube and the die graduations may be indentations filled with said material: after placing the die in register with the surface marks the assembly is heated and the graduations thus fused to the coating.  Graduations may also be applied using a silk screen process and an ink.  The precision tube may be of glass or plastics material.
Patent GB-548297-A (GB)
Title: Improvements in electric flash lamps
IPC: F21K5/08
Filed: 1941-04-07
Abstract: 548,297. Flash-lamps. BRITISH THOMSONHOUSTON CO., Ltd., April 7, 1940. No. 4616. Convention date, April 8, 1940. [Class 9 (ii)] An electric flash lamp comprises a light transmitting container, one or more non-combustible supports within the container, a combustible coating in the form of a bead on the supports for emitting a flash the coating constituting substantially the sole source of active radiation and means in the container for igniting the coating. In one form, the glass container 10 coated with a laquer or varnish to minimize cracking, as described in Specification 538,676, has a re-entrant stem 11 and leading in wires 12, 13. with straight parallel terminations 15, 16 bridged by a small filament 17 The filament is covered by a member 18 formed of combustible light-giving material adapted to be ignited by the filament. The supports may be arranged in groups of four or six arranged parallely and covered with the combustible material in the form of a paste or the ends 15, 16 may terminate in portions 28 bent at right angles to their lengths so that the burnt material flies upwardly instead of horizontally. The transparent globe may be of elliptic section as described in Specification 546,189. Examples of flash compositions are zirconium metal powder with calcium peroxide made into a paste with thin glue and applied in the form of a bead to the supports which are then dipped into a mixture of aluminium powder and calcium peroxide made into a paste with solution of nitrocellulose in amyl acetate finally covered with a lacquer coating. Two other flashing mixtures are given. The colour of the flash may be modified by the' inclusion of salts of metals such as strontium, calcium, sodium or potassium and the like. Specifications 1544/02, [Class 9], and 503,540 also are referred to.
Patent GB-901236-A (GB)
Title: Improvements in or relating to internal combustion engines and control arrangements therefor
Inventor: TAYLOR HARRY FREDERICK WOODWAR
IPC: F01P7/02
Filed: 1961-02-08
Abstract: 901,236. Engine stop-gear. LISTER & CO. Ltd., R. A. Feb. 8, 1961, No. 4720/61. Addition to 776,613. Class 122 (4). An internal-combustion engine including a fan supplying cooling air driven from the engine has a control arrangement including an air vane 20 adapted to be deflected by cooling air flowing from the cooling air fan and switch means 34 actuated by deflection of the vane and operative on failure of the cooling air supply from the fan to stop the engine. The switch may comprise a micro-switch and a plunger 27 acts on a lever 32 which transmits movements of the plunger to the switch, the lever being arranged to move clear of the switch during engine operation so that small movements of the vane are not communicated to the switch. The switch may be arranged to affect the ignition circuit or may be arranged to actuate a fuel supply control member. The micro-switch circuit may include a further switch which is closed at the end of the engine starting cycle, the further switch thus acting as an over-ride.
Patent GB-575371-A (GB)
Title: Improvements relating to flame-cutting machines
IPC: B23K7/00
Filed: 1944-03-14
Abstract: 575,371. Dividing by fusion. WILD & CO., Ltd., M. B., and BOUCHER, J. W. March 14, 1944, No. 4732. [Class 83 (iv)] In a flame cutting machine of the type comprising a motor-driven carriage a, e traversable along a horizontal track b and connected by jointed links d, d<1> to a bar c carrying a burner or burners f and a tracer g rotated by a separate motor so as to co-operate with a pattern and switches being provided in conjunction with the joints of some of the links for starting, stopping or reversing the carriage driving motor after a predetermined amount of angular movement of the links, at each of the joint parts at which a switch is required a tumbler switch is carried by one part which also carries an actuating lever and a striker is carried by the other part so as through the lever to actuate the switch by angular movements of the joint parts. In the hollow bifurcated movable part h of one of the joints of a link d is mounted a tumbler switch i, the lever o of which passes through a slot n in a lever m pivoted thereon, the lever m having at one end a shallow V-notch which is engaged by a striker k carried by the fixed part j of the joint so that after a predetermined angular movement of the joint parts in either direction the striker actuates the lever to operate the switch.
Patent GB-1129972-A (GB)
Title: An edible product consisting of fruits or vegetables in form of flakes and process and apparatus for preparing the same
IPC: A23L19/00
Filed: 1966-02-03
Abstract: 1,129,972. Dried fruit and vegetable products. PUCCINELLI PACKING CO. S.p.A. 3 Feb., 1966 [6 Feb., 1965], No. 4751/66. Headings A2B and A2D. Dried fruit or vegetable products in flake form are obtained by dehydrating the sliced or diced fruit or vegetable on belt 7 to a moisture content of 12-30% by weight, crushing the fruit or vegetable by passing it between counter-rotating rollers 5, 6 to form flakes having a broken cellular structure and then dehydrating the flakes on another belt to a moisture content of 2-10% by weight. The rollers 5, 6 are rotating at different speeds in water baths 10, 11 to have a thin film of water deposited thereon to prevent the product being processed from sticking to the rollers. The scrapers 12 control the thickness of the water film on the rollers. The scrapers 8, 9 help to remove the flakes from the rollers.
Patent GB-180004-A (GB)
Title: Improvements in or relating to extension ladders
IPC: E06C1/12
Filed: 1921-11-09
Abstract: 180,004. Knapman, E. G. Nov. 9, 1921. Ladders.-A pivoted lock for a sliding extension ladder is recessed at p on the side adjoining the ladder stile, and the actuating-lever g is situated in this recess, and worked bv an endless rope n passing over pulleys on the lower ladder portion.
Patent GB-138448-A (GB)
Title: Improved means for artificially hatching queen bees
IPC: A01K49/00
Filed: 1919-02-26
Abstract: 138,448. AbushÔdy, A. Z. Feb. 26, 1919. Bee-keepers' appliances; hatching-appliances.- Queen bee cells are incubated by keeping them at the desired temperature by means of a waterbath. The cells are placed in test-tubes c which are carried by a frame b and placed in the bath a, which is heated by a flame or otherwise. A thermometer d is also fitted in the frame. The emerging bees are confined by a plug in the testtube, and food is introduced in a thimble.
Patent GB-230439-A (GB)
Title: Improvements in or relating to conveying systems
IPC: B65G53/56
Filed: 1925-02-21
Abstract: 230,439. Rushen, P. C., (Fuller-Lehigh Co.). Feb. 21, 1925. Fluid-actuated and electrically-actuated valves; indicators, applications of.-In a conveyer system for distributing pulverulent material, e.g. fuel, from a central storage chamber to a series of bins through a main pipe and branch connections, valves are provided for shutting off the main pipe beyond any bin and diverting the material into that bin. Fuel from a storage bin, weigh bin, or pulverizer passes through an inlet 14, Fig. 1, into a pipe 10 which leads to bins 23 - - 25 and communicates by a pipe 11 with bins 18, 19. The material is forced into the pipe 10 by a screw conveyer 12. The bins 18, 25 are connected directly with the ends of the pipes 11, 10, and the bins 19, 23, 24 are connected with their respective pipes by valves 20, 27, 29 which are simitar to the valve 17 placed at the junction of the pipes 10, 11. Each of these valves comprises a disc 43, Fig. 4, carried by an arm 44 of a shaft 45. A crank 50 on the shaft 45 is connected by an adjustable link 51 to a crank 52 on the shaft 53. A pinion 58 on the shaft 53 is engaged by racks attached to the pistons 57 of cylinders 56. The pistons are actuated by compressed air supplied from the pipe 15 through a branch 59 and pipes 62. In each pipe 62 is a pin valve 63, Fig. 6, which is normally kept in raised position to close the passage by a spring 66, but is forced downwards to open the passage by the core of a solenoid 65 when current is supplied by depressing a button on the switchboard at the control station. This button must be kept depressed until the piston arrives at the end of its stroke.. The arrival of the piston at this point is indicated by an electric lamp which is controlled by a switch 68 mounted on the crank 50. The switch 68 comprises a casing containing mercury 69 and three contact points 71, Fig. 4. When the switch is moved to right or left, the mercury establishes a contact between the central point and one of the outer points and appropriate circuits are thus completed to light lamps at the control station, one of which indicates the closed and the other the open position of the valve. The main body of the valve is connected to the pipe 15 by a branch 73 containing a cut-off valve by means of which air can be admitted to force out material which has become clogged. Each of the valves 20, 27, 29 is closed when the level of the material in the corresponding bin reaches a predetermined point by means actuated by a pendulum 74, Fig. 7, suspended from the top of the bin by pivots 79 and carrying a paddle 75 at its lower end. The paddle is moved from the vertical position by the flow of material over the top of the pile in the bin. The upper part of the pendulum, is connected by links 81 to a bellcrank lever 83 carrying a mercury switch 86. Pairs of contacts 88 are sealed at opposite ends of the tube, one pair of which is connected to a lamp on the switchboard and the other pair of which closes the circuit to the solenoid actuating the valve 63.
Patent GB-706654-A (GB)
Title: Garment hanger
IPC: A47G25/48
Filed: 1952-02-26
Abstract: 706,654. Garment hangers. FRANCO, R. E. Feb. 26, 1952, No. 5017/52. Class 52(5) A garment hanger comprises a yoke member 10 with broadened ends 15 recessed to receive a transverse trousersupporting bar 26 mounted on threaded shafts 31. Clamping bars 34, 35 are moved into a clamping position by nuts 18, 19 mounted on the shaft. In a modification the yoke member with recesses is replaced by end plate assemblies, forming shoulder supports, mounted on the end of the transverse bar.
Patent GB-597390-A (GB)
Title: Process of purifying commercial acid casein
IPC: A23J1/20
Filed: 1943-03-29
Abstract: Commercial acid casein is purified by emulsifying in an aqueous solution of the acid casein, containing at least one substance having a hydrotropic action towards casein, an organic solvent partially miscible with water and has a specific gravity different from that of the casein solution, such a proportion of the solvent being used that at least a part of it is immiscible with the aqueous casein solution, allowing the emulsion to stand until the non-miscible portion of the solvent containing the impurities has collected in the form of a mucilaginous layer and separating therefrom the clarified casein lution.  The substances having hydrotropic action towards casein are defined as being those substances of substantially neutral character whose aqueous solutions are capable of dissolving casein when casein is stirred in the solution at ordinary temperatures; examples are sodium benzoate, sodium cymene sulphonate, urea, thiourea, biuret, dicyandiamide, ammonium thiocyanate, potassium iodide, triethanolamine borate, formamide and acetamide.  The process may be carried out in the presence of substances of alkaline reaction, for example, borax, sodium carbonate, tri-sodium phosphate, triethanolamine, ammonia or guanidine and the quantity of hydrotropic substance then required is reduced.  Specified solvents for the process are benzine, petroleum ether, ligroin, lacquer benzine, ethyl ether, isopropyl alcohol, normal and isobutanol, amyl alcohol, cyclohexanol, carbon tetrachloride, trichlorethylene, benzene, toluene and ethyl or amyl acetate. Casein free from albumen and fats may be precipitated from the purified solution by dilution and addition of acid.  The mucilaginous layer may be worked up for recovery of solvent and lactalbumin.  Examples are given.
Patent GB-762071-A (GB)
Title: Improvements in or relating to carbons for searchlight and cinematograph projection lamps
Inventor: LEUCHS FRIEDRICH
IPC: H05B31/10
Filed: 1952-02-26
Abstract: 762,071. Arc lamps. CONRADTY, E. K., CONRADTY, P., CONRADTY, M. and CONRADTY, C. [trading as CONRADTY, C.]. Feb. 26, 1952, No. 5041/52. Drawings to Specification. Class 39(1). A positive heavy duty arc-lamp Beck effect electrode has a core comprising a mixture of carbon and metallic salts and a surrounding carbon jacket, the metallic vapours produced in the crater by the arc being diverted from the crater by several capillary channels extending along the core and arranged substantially uniformly therein. The channels may be formed by adding to the core a fibrous material which is consumed or vaporized during baking or drying of the electrode to leave fine channels in the core. Alternatively the core may be moulded and the capillary channels formed by pressing thin needles into the core.
Patent GB-431882-A (GB)
Title: Improvements in and relating to so-called "disturbance-suppressors" for use in connection with wireless receivers
IPC: H03H1/00
Filed: 1934-02-15
Abstract: 431,882. Protective arrangements. BELLING & LEE, Ltd., and LEE, E. M., Cambridge Arterial Road, Enfield, Middlesex. Feb. 15, 1934, No. 5085. [Class 38 (iv)] A unit for the suppression of high-frequency disturbance in mains due to apparatus supplied thereby, comprises a casing in which are mounted two high - frequency inductances 14, 15, two condensers 35, 36 arranged in a casing 13, fuses and circuit modifying means 28, 29, 30 equivalent at least to a single pole change-over switch for changing over the connections within the device so as to permit selection of the best suppressing arrangement. A pair of fuses mounted in a box 27 may be placed in alternative upper and lower positions in which the inductances are connected, one in each main, either on the supply or the consumer side of the condensers. A wander plug 30 with alternative positions 28, 29 is provided whereby the condensers may be connected in series across the mains through the fuses with the mid-point earthed, or one may be connected across the mains through the fuses and the other connected between one of the mains and earth. The fuse carrier and contacts may be replaced by a double pole change-over switch, and the wander plug and connections by a single pole change over switch.
Patent GB-1020664-A (GB)
Title: Processes for the treatment of ferrous alloys, and ferrous alloy articles so treated
Inventor: FOWLER SYDNEY
IPC: B44C1/22
Filed: 1964-02-06
Abstract: 1,020,664. Etching. S. FOWLER. Jan. 20, 1965 [Feb. 6, 1964], No. 5094/64. Addition to 965,633. Heading B6J. A process for producing decorative patterns on the surface of a corrosion-resistant ferrous alloy such as stainless steel, coated with a durable material of a colour different from that of the alloy, such as nickel plate, chrome-plate or vitreous enamel containing boric acid or anhydrous sodium tetraborate, comprises applying a resist to areas of the coating defining the desired patterns or a negative thereof by using a blank transfer material bearing the resist in the desired form imposed by a master pattern. The uncovered portions of the coating are then etched with a mineral acid such as a mixture of nitric and hydrochloric acid or hydrofluoric acid. The resist may be printing ink, a mixture of beeswax, tar and carbon black, a varnish such as Sumatra Gum Benzoine or South American asphaltum, beeswax or plasticine.