baber/WOPTO huggingface dataset:
Patent GB-402720-A (GB)
Title: Improvements in horns
IPC: G10K9/02
Filed: 1933-09-21
Abstract: 402,720. Fluid-pressure horns. GURTNER, J., 10, Rue des Ecoussons, and BOULLAY, R., 2, Impasse des Capucins, both in Pontarlier, France. Sept. 21, 1933, No. 26118. Convention date, Feb. 14. [Class 13.] A vacuum-operated horn comprises a valve 6, Fig. 1, seated on an apertured flexible diaphragm 3 which is fixed at its periphery to the body of the horn by a ring 4 of rubber or like resilient material. The valve disc 6 is adjustably clamped to a bolt 7, a resilient packing 12 being interposed therebetween, the bolt being supported by the centres of two parallel spring spiders 8, 8<1> of the form shown in Fig. 2 the ends of the arms of which are clamped to the horn body by screws 10. A flat spring 15 bears on the end 17 of the bolt 7 and its tension is adjusted by a screw 18. The vacuum available for operating the horn may be increased by a Venturi device comprising a cone 20, Fig. 3, communicating with the vacuum, an inlet 21 communicating with the atmosphere and a tube 22 connected to the horn and leading from a space round the inlet cone 21. Where the vacuum is obtained from the intake manifold of an internal combustion engine, the Venturi device may comprise a carburetter flange 23, Fig. 4, interposed between the carburetter and the inlet pipe and having a recessed portion 24 surrounding a Venturi cone and communicating with a pipe 25 leading to the horn. An electromagnetically operated valve may cut off the horn from a chamber connected to the vacuum and having a non-return valve to prevent the entry of air, Fig. 5, (not shown).
Patent GB-628240-A (GB)
Title: Improvements in or relating to selenium rectifiers
IPC: H01L21/108
Filed: 1947-09-26
Abstract: 628,240. Dry contact rectifiers. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Sept. 26, 1947, No. 26144. Convention date, Oct. 30, 1946. Drawings to Specification. (Class 37] A method of manufacturing a selenium rectifier comprises applying to the free surface of the selenium layer a coating of a solution or suspension of magnesium thiosulphate in a volatile organic solvent, e.g. in alcohol or acetone. A selenium-coated iron base-plate is dipped in a solution formed as described above, and on withdrawal, after the organic medium has evaporated, is sprayed with cadmium or an alloy thereof. The rectifier is then heat-treated and electro-formed.
Patent GB-291662-A (GB)
Title: Improved bread baking tins
IPC: A21B3/13
Filed: 1927-10-04
Abstract: 291,662. Bacon, T. B. Oct. 4, 1927. Baking and like tins or pans. - A tin for baking " Sandwich " or "Devon" pan loaves is provided with a. sliding cover C formed with depending flanges J, E adapted to engage the front and end edges of the reinforced mouth of the tin and with a reinforcing bar D extending the full length of the back edge. A stop may be provided to prevent the complete detachment of the cover whilst permitting it to be turned down alongside the tin.
Patent GB-998630-A (GB)
Title: Improvements in manually propelled trolleys
IPC: B62B5/00
Filed: 1963-07-02
Abstract: 998,630. Hand trucks. H. L. JENKINS. June 30, 1964 [July 2, 1963], No. 26194/63. Heading B7B. A trolley has a base 1 fitted with castors 4 and stops 5 which together with a rope 6 serve to locate the container 9 on the trolley when the loop 8 is lifted to render the trolley mobile.
Patent GB-956295-A (GB)
Title: Device for forming and applying pouring spouts to containers
Inventor: BACK LEONARD
IPC: B31B1/84
Filed: 1961-07-19
Abstract: 956,295. Applying spouts to cartons. R. M. BERGSTEIN, and F. D. BERGSTEIN. July 19, 1961, No. 26228/61. Heading B5D. [Also in Division B8] A spout forming and applying machine for cartons comprises a carton-supplying conveyer 21, Figs. 6, 7, a lift platform 29, a spout forming die 73, a spout transfer mechanism 86, a sealing anvil 104 and a carton-removing conveyer 116. A carton received on a platform 22 contacts a switch 23 to actuate a pneumatic cylinder 26 which powers a pusher 28 to move the carton on to the lift platform 29, this latter being caused to move upwards after a finger 30 on the pusher 28 has contacted a switch 31. The carton is gripped while ascending by grippers 36, 37, rollers 41 following tracks 42. The die 73 receives foil from a roll 61 and comprises members 74, 77 (Figs. 19, 20, not shown) which form a spout 6, Fig. 5. The transfer mechanism 86 gathers the spout while in the die, between spring fingers 96, 97, Fig. 13, and transfers it to the sealing anvil 104 where it is pushed by plunger 95 between gripper plates 109, 110 (Fig. 16, not shown) until base portion 7 of the spout lies against front face 104a (not shown) of the anvil. The spout is carried down by the sealing anvil into the carton and is heat-sealed to the appropriate part of the inside face thereof, Fig. 10. The heat-sealing is effected by suitably coating the outer surface of the spout at the time of forming the spout and employing a heating element 111 (not shown) on the anvil. The area of the carton to which the spout is applied may or may not be similarly coated. The cycle of movements is completed by the lowering of the lift platform 29 with consequent release of the carton by grippers 36, 37, the next carton moved by pusher 28 dispatching the former carton on to the conveyer 116. The die 73 transfer mechanism 86 and sealing anvil are actuated by a prime mover 54 via cam-shaft 51. A safety device 67 comprises a switch held open by the foil when on roller 64. Absence of the foil causes closure of the switch with consequent stoppage of the machine. A circuit diagram is also described. U.S.A. Specification 2,862,649 is referred to.
Patent GB-628377-A (GB)
Title: Improvements in and relating to the manufacture of electric motor stators and like magnetic parts
IPC: H02K1/16
Filed: 1947-09-30
Abstract: 628,377. Cores of dynamo-electric machines. BRIGHT, F. J., and LEES, D. M. Sept. 30, 1947, No. 26361. [Class 35] Windings are introduced into slots in a core member through openings in the outer core periphery, these openings then being closed by a metal coating to form a flux carrying case and the slots are then opened to the internal periphery of the core. Fig. 1 shows a stack of stator laminations a assembled on a mandrel b with external slots in line. After inserting the stator windings in the slots and covering them by slot insulation material, soft iron or iron alloy is sprayed on the periphery to form a jacket e closing the external openings of the slots. On the ends of this jacket spigot portions el are turned to receive end covers. After the removal of the mandrel b, the stator tunnel is bored out sufficiently to open the bases of the slots.
Patent GB-335037-A (GB)
Title: Improvements in or relating to reflectors or reflecting lenses
IPC: G09F13/16
Filed: 1929-08-30
Abstract: 335,037. Price, C. W. Aug. 30, 1929. Reflectors.-A reflex light 1 is provided with an annular collar 2 so that it may be supported in a casing 3 by means of the inturned edge 9. The holder 3 is cylindrical, and is provided with a pin 5 passing through the bottom of the holder and having a large head 4. This head 4 is firmly fixed in the casing by working the metal over it so that it is gripped in an annular recess. In place of a pin a screwed stud or wood screw may be used. Specification 308,556 is referred to.
Patent GB-1488652-A (GB)
Title: Heat processing apparatus
IPC: F24C15/16
Filed: 1974-09-02
Abstract: 1488652 Cooking ovens and oven shelves UNIVERSITY STRATHCLYDE 2 Sept 1973 [2 June 1973] 26437/73 Heading F4W [Also in Division A2] A heat-processing oven for cooking or sterilizing containers of food consists of a pressurizable chamber 1, a number of trays for carrying the containers, a plate-form electric heater 5 on each tray and means for moving the trays apart to give access to the containers. The means for moving the trays apart may be levers between each adjacent pair of trays, having rollers bearing on the trays so that rotation of the levers causes the trays to separate or come together, resting in the closed position on spacing blocks 4 on the tray below. The chamber is designed to withstand a pressure of 75 lbs./sq. inch, pressure being applied during the heating of the containers to prevent them bursting. The heating process is controlled by a thermostat and a timing mechanism. After treatment the containers are cooled by refrigerating gas applied through perforated pipes.
Patent GB-707777-A (GB)
Title: Improvements relating to blast furnaces and methods of operating them, more particularly with reference to the charging of such furnaces
IPC: D01D10/04
Filed: 1951-11-12
Abstract: 707,777. Charging blast furnaces. INTERLAKE IRON CORPORATION. Nov. 12, 1951 [Aug. 20, 1951], No. 26443/51. Class 51 (2) In blast furnace charging mechanism incorporating superposed rotary and stationary hoppers controlled by bells and fed by a skip the rotary hopper 20 is supported by rollers 45 engaging a track 48 on a flange 50 attached to another flange 33 formed on the hopper said flange 50 carrying a sleeve 51 of substantial depth dipping into a water seal 56. The hopper 20 is driven by an electric motor through a worm wheel 38, a shaft 36, and a pinion 35 engaging a ring gear 34 on the flange 33. In operation, the hopper 20 is rotated at a rate of one revolution in the shortest period of time required to dump any skip load, e.g. 3 secs., the driving motor being started as the skip 31 approaches the top of the incline 32 in order to permit acceleration of the hopper to the desired speed of rotation before the dumping operation begins. These conditions are ensured by the use of the electrical circuit shown in Fig. 5 wherein the motor 41 is supplied with current through lines L-1 and L-2, and the circuit includes a starting switch 60 biased to open by a spring 62 and a stopping switch incorporated in a timer 61 and biased to the closed position. An operating member 60A actuated by the skip closes the switch 60 causing current to flow through the contactor 64, line 65, timer 61, line 66, motor 41 and line 67 back to the line L-2, and energizes a solenoid 68 through lines 69 and 70 thus keeping the switch 60 closed until the circuit is opened by the timer 61. A similar circuit incorporating a second starting switch and solenoid is arranged when two skips are used to charge the furnace, Fig. 6 (not shown). Charging by this method is said to ensure uniform distribution of the charge material and to reduce the amount of flue dust leaving the furnace.
Patent GB-444202-A (GB)
Title: Improvements in railway wheels
IPC: B60B17/02
Filed: 1934-09-15
Abstract: 444,202. Wheel tyres. KAHN, M., 7, Bodinusstrasse, Reihl, Cologne, Germany. Sept. 15, 1934, No. 26553. Convention date, Sept. 16, 1933. [Class 144 (ii)] Railway wheels are fitted with soft rubber tyres c into which project studs d spaced around the rim. Adhesion of the rubber to the metal is effected by means of an intermediate layer of material such as the rubber isomers described in Specifications 352,080 and 371,339, [both in Group V]. The rubber may be arched between the studs.
Patent GB-1146732-A (GB)
Title: Portable apparatus for continuous cinematographic projection of a film
Inventor: BOTTANI ANGELO
IPC: G03B19/18
Filed: 1966-06-15
Abstract: 1,146,732. Sound film projectors. SOC. INTERNATIONALE FONOVISIONE S.p.A. 15 June, 1966 [24 June, 1965], No. 26625/66. Heading G5R. [Also in Division G2] A portable cine projector has an interchangeable magazine 9 containing an endless spool of film and comprises a base 1<SP>1</SP> carrying a film driving unit 2, a sound transcription unit 3, and an optical projection unit 4, the magazine 9 being mounted on a plate 7, pivoting on the base from a loading position, Fig. 1, to an operative position in which rollers 10, 11, 12, 13 and 14 hold the film 5 against units 2, 3, 4. Lamp 17 and condenser 18 are carried on plate 7 and are cooled by a blower beneath base 1<SP>1</SP>; cooling fins 23 and corrugated insulating collar 24 being provided. The film is continuously driven by sprocket 21 to magnetic sound head 32 which is resiliently movable on support 31 by springs 37 to take up wear and which engages the film supported by the sound drum 39 whose speed is stabilized by flywheel 40. Projection unit 4 comprises sprocket 41, flywheel stabilized, and a rotating multi-sided refracting prism 42 adjacent the objective lens 45 which is followed by an Amici prism 46. Spring catch 6 retains plate 7 in the operative position.
Patent GB-910177-A (GB)
Title: Improved machine for drying flat domestic pottery ware
Inventor: BAYLEY VINCENT LAWRENCE
IPC: F26B21/00
Filed: 1960-08-02
Abstract: 910,177. Drying apparatus. HOPOL Ltd. July 14, 1961 [Aug. 2, 1960], No. 26680/60. Class 34 (2). Apparatus for drying ceramic ware wherein the articles are carried on trays pivotally suspended at their ends from endless chains to follow a zig-zag path through a drying chamber characterized in that a hot air duct with air jet apertures is mounted above each of a plurality of the rows of trays as they travel in the horizontal direction, the apertures being so proportioned as to achieve a substantially uniform distribution of the drying air across the chamber. Flat domestic pottery is dried by horizontal traversing movements on trays h, Fig. 4, pivotally suspended on chains i within a casing a between upper hot air inlet ducts p and lower exhaust ducts q respectively. The inlet ducts are tapered from their inner ends to give a uniform rate of delivery through jet apertures therein. The drying is circulated through an inlet and exhaust duct header b, c, Fig. 2, at either side of the casing by a fan d, through a heater e, and a valve f allows moist air to be bled off to atmosphere.
Patent GB-1105153-A (GB)
Title: Mirror reflectors for fluorescent lamps
IPC: F21V19/00
Filed: 1965-06-24
Abstract: 1,105,153. Lamp reflectors. H. SCHMITT. 24 June, 1965 [25 June, 1964], No. 26725/65. Heading F4R. A trough-shaped reflector 3 for a fluorescent tube 1 has a cross-section in the form of two partial parabolas the focii F 1 , F 2  of which lie on or in the tube and the axes H 1 , H 2  of which extend through the surface of the tube and are parallel or slightly inclined to the plane H containing the axis of the tube and the inter-section of the parabolas. The reflector may be made of plastic with a metallized reflecting layer.
Patent GB-671000-A (GB)
Title: Improvements in or relating to straight bar knitting machines
IPC: D04B11/06
Filed: 1949-10-18
Abstract: 671,000. Knitting-machines. SOC. ITALIANA E. BREDA PER CONSTRUZIONI MECCANICHE. Oct. 18, 1949 [Oct. 30, 1948], No. 26729/49. Class 74 (ii). The narrowing mechanism of a straight-bar machine is racked by means permitting racking whether the points are in the raised or lowered position. A cam 14 mounted on the main shaft actuates a bellcrank lever 11 which in turn actuates a second bell - crank lever 10 pivoted on an arm 16 of the narrowing mechanism. The lever 10 has a tooth engaging notches in a disc 7 mounted on the racking spindle.
Patent GB-1077200-A (GB)
Title: Treatment of aqueous alkaline aluminate solution
IPC: C01F7/47
Filed: 1966-06-15
Abstract: Dissolved chromium is removed from an aqueous alkali-metal aluminate solution by precipitation with one or more of Arkansas bauxite, ferrous sulphate and an alkali metal sulphide.  The preferred ore is Jamaican bauxite, and sodium is the sulphide usually used.  Ferrous sulphate may be used too to precipitate chromium from the solution obtained after digestion and after filtering to remove the residues.
Patent GB-878488-A (GB)
Title: Measurement of variation in the bore of pipes
Inventor: MARSHALL DONALD GEORGE
IPC: G01B7/12
Filed: 1957-08-24
Abstract: 878,488. Measuring electrically. DUNLOP RUBBER CO. Ltd. June 27, 1958 [Aug. 24, 1957], No. 26778/57. Class 40 (1).  The bore of non-metallic pipe is examined by packing the bore with metal and passing it through an A.C.-fed coil while measuring the changes in impedance of the coil. In the arrangement of Fig. 1, magnet 2 holds steel balls 4 in place which in turn supports lead shot 5. The tube passes between the poles of the magnet while the steel ball remains fixed. The level of the lead shot varies with the bore of the tube and changes the impedance of an A.C.-fed coil 6. The impedance of the coil controls a polarized relay to operate a warning device if the bore is above or below a standard size. When the tube is flexible, the arrangement shown in Fig. 2 may be adapted in which the amount of the metal in coil 11 is varied as the tube passes through the coil guided by rollers 12-15. Liquid metal or balls of other metals may be used. In the circuit shown in Fig. 3, coil 11 controls the anode current of oscillator V1 which controls the grid potential of valve V2, which forms with V3 a long tailed pair. The centre-tapped polarized relay is connected in the anode circuit.
Patent GB-1425866-A (GB)
Title: Signal processing apparatus
IPC: H04B1/66
Filed: 1973-06-05
Abstract: 1425866 Companders SONY CORP 5 June 1973 [7 June 1972 (2)] 26797/73 Heading H4R In compression or expansion of analogue signals involving reproducing the signals at a different rate from which they were recorded and transferring them through a delay line, means are provided for reducing deviation in the delay line D.C. output level.  The reproduced signals are fed alternately to bucket-brigade delay lines B 1 , B 2  by switch 4 and transferred by switch 10 to hold circuits 32, 33 delivering the output through a differential amplifier 35 and bandpass filter 17. The switches 4, 10 change over whenever a counter 15 reaches the number of stages N of the delay lines. The counter 15 counts pulses from a standard frequency generator 5 (corresponding to the recording speed) when in the compressor mode and from a generator 8 related to the playback speed when in the expander mode. The respective pulse trains also change over the hold circuits 32, 33 and switches 30 feeding antiphase signals 29a, 29b to the delay lines. The read-in and read-out rates of the delay lines are also switched 9, 11 by the counter 15 so that information read-in from a tape 2 at one rate is read-out at another to effect compression or expansion. In the compression mode only the latter portion of the read-in information is read-out whereas in the expansion mode the information is recirculated to fill in the gaps produced as a result of faster read-out. Owing to the different storage times in the delay lines, the respective D.C. output levels normally differ so that noise pulses would occur at change over between the lines. The antiphase signals 29a, 29b from the differential amplifiers 29, however, are alternately fed to the delay lines, held for a period in hold circuits 32, 33 and subtracted at 35 to regenerate the information but cancel the D.C. difference common to both hold circuits. The switching of the hold circuits may be arranged to produce zero output at variation so as to cancel residual noise resulting from instantaneous D.C. differences. In a modification (Fig. 9, not shown) the delay lines are each divided into two sections separated by an inverter so that the D.C. variation follows a sawtooth pattern with a consequent smaller deviation.
Patent GB-488632-A (GB)
Title: Improved apparatus for protection against gases
IPC: A62B7/02
Filed: 1936-10-02
Abstract: 488,632. Respiratory apparatus; pipe joints. BOURGEOIS, A. Oct. 2, 1936, No. 26806. Void. Convention date, Oct. 2, 1935. [Class 81 (ii)] [Also in Group XXVIII] In closed-circuit breathing - apparatus, in which air is exhaled from a pipe 20, Fig. 2, through an exhaling valve 19a and a carbon dioxide absorbent canister 13 into a breathing bag 12 and is inhaled from the bag directly through a pipe 16 and inhaling valve 18a, replacement of the canister 13 without opening the apparatus to atmosphere is permitted by the provision of a byepass pipe 17 and three-way cocks 14, 15. The apparatus is enclosed in a casing 1 having shoulder straps and a belt 3, and a hinged lid covering the canister and adjacent parts. The bag 12 has connections 7 for two oxygen cylinders 4 secured to casing 1 by rings 5 and to the connections 7 by fly-nuts 6. Spring-pressed valves 27 in the connections close the apparatus during replacement of the cylinders. The cylinder fittings may include regulatable pressurereducing valves and manometers. The canister 13 is connected by quick-release means comprising collars 22, Figs. 2 and 5, rotatable on flanged ends of the connecting pipes 14c, 15c, by levers 23, and each carrying two oppositelydisposed part-circular flanges 24. With the levers. 23 positioned as in Fig. 5, segmental undercut guides 21 on the canister may be slid laterally on to the connecting-pipes 14c, 15c, guided by bevelled plates 31 and positioned against depending stop-pieces 31a ; rotation of levers 23 to the left (as shown) then engages flanges 24 in the undercut grooves 21a of parts 21. The interengaging parts are formed with cam faces, as 24a, producing a tight joint. The cocks 14, 15, Fig. 2, are simultaneously operated by links connected to their levers 14f, 15f and extending through one side of the casing, the links being connected by a crosspiece normally secured to the casing 1 by a latching device. The levers 14f, 15f lie in front, and prevent movement of the levers 23 until after the cocks 14, 15, have been turned to cut out the canister and insert the pipe 17 in the breathing circuit. For subaqueous use the hinged lid of the casing 1 and the canisterreplacement features are dispensed with.
Patent GB-358227-A (GB)
Title: Submergible electric cable and method for making same
IPC: H01B7/18
Filed: 1930-09-08
Abstract: 358,227. Cables. ARUTUNOFF, A., Philtower Building, 5th Street, Tulsa, Oklahoma, U.S.A. Sept. 8, 1930, No. 26808. [Class 36.] Flexible stranded cables, particularly those of the type for use with submergible electric pumps, have the spaces between the strands filled with lacquer or varnish. The stranded conductor is embedded in rubber which is encased in webbing impregnated with varnish. In the embodiment, a cable 17a comprises a stranded conductor 22 embedded in rubber 23 which is covered with impregnated webbing 24. Metal armouring 25 is placed on the webbing 24. In a modified construction for three-phase circuits, the individual cables are embedded in rubber which is enclosed in impregnated webbing. The lacquer or varnish is preferably sprayed between the conductor strands in manufacture.