baber/WOPTO huggingface dataset:
Patent GB-1465762-A (GB)
Title: Polymerisation apparatus
IPC: B01J19/00
Filed: 1974-03-08
Abstract: 1465762 Polymerisation apparatus MONSANTO CO 8 March 1974 [9 March 1973 (2)] 21164/76 Divided out of 1465761 Heading B1X A continuous mass polymerisation apparatus 10 comprises a vertically oriented generally cylindrical chamber 11 formed by a casing 12 provided with terminal closures 13 and having a monomer input means 4 near its upper end and a polymeric product output means 9 near its lower end; a plurality of cooling means 15, 16 within the chamber for cooling at least the lower portion of the chamber; a rotatable member positioned along the vertical axis of the chamber and comprising a centre shaft 17 having a plurality of circular horizontally oriented disk members 20 positioned in vertically spaced relationship; attached to each of the disk members as spaced intervals around the circumference of each disk, a plurality of radially extending flat blade members 21, the blade members attached to the lowermost disk member being vertically oriented with respect to their flat surfaces and all the blade members attached to the remaining disk members having their flat surfaces oriented at an angle to the plane of the horizontal disk members; and driving means 18 to provide rotation of the rotatable member.
Patent GB-1342541-A (GB)
Title: Graphite tube cells for use in atomic absorption spectrometers
IPC: G01N21/74
Filed: 1971-04-19
Abstract: 1342541 Electric furnaces BODENSEEWERK PERKIN-ELMER & CO GmbH 19 April 1971 [11 Feb 1970] 21175/71 Heading H5H [Also in Division G2] A graphite tube cell for atomic absorption spectrometers comprises an open-ended graphite tube 1 in which a specimen is introduced during use, two electrodes 4, 5 supporting opposite ends of the tube 1 and arranged to supply current thereto, and a housing 8<SP>1</SP>, 7<SP>1</SP> containing the tube 1 and electrodes 4, 5 and provided with a protective gas inlet 16, wherein the tube 1 has a central opening 17 in its wall and two further openings 18, 19 at opposite ends. The ends 2, 3 of tube 1 are conically tapered and co-operate with complementary conical surfaces 6, 7 of graphite electrodes 4, 5. Cooling jackets 10, 11 surround electrodes 4, 5 and tube 1. Current is supplied by plug connectors 20, 21. The arrangement of openings 17, 18, 19 ensures that gas passes in parallel paths through tube 1 and outside the tube 1 thereby reducing the loss of the specimen vapour by the protective gas. Openings 18, 19 may be tangential to produce a vortex motion of gas in the tube 1. The amount of the wanted element in the specimen is determined by the attenuation of a beam of radiation from a hollow cathode lamp containing the spectral lines of the wanted element.
Patent GB-770205-A (GB)
Title: An improved forging machine
IPC: B21J7/14
Filed: 1954-07-21
Abstract: 770,205. Forging. RIBBACK, E. July 21, 1954 [July 31, 1953; Aug. 1, 1953], No. 21233/54. Class 83 (4). A swaging machine has a plurality of tools 8, 8<SP>1</SP>, 8<SP>11</SP>, Fig. 5, striking simultaneously crosswise of the axis of the workpiece and driven by a rotary driving shaft 23, whose axis is parallel with the axis of the workpiece, said tools being mounted on tool carriers such as 18, 19 having at their ends remote from the tools contact surfaces which together partly enclose the periphery of the driving shaft but do not completely enclose said periphery in any transverse plane of the shaft. The tools 8, 8<SP>1</SP> are mounted on pivoted levers 18, 19 biased by springs 21 and driven through links 25, 25<SP>1</SP> by eccentrics on the shaft 23. The tool 8<SP>11</SP> is mounted on a slidable carrier 26 driven by another eccentric on the shaft. The pivot shafts of the levers are mounted in eccentric bushes 24, 24<SP>1</SP> which are rotatable by mechanical or hydraulic control means. In a modification, Fig. 4 (not shown), only two tools mounted on pivoted levers are provided. In another embodiment, Fig. 2, the tools acting on the workpiece 6, are grooved rollers 7, 71 rotatably mounted on shafts 9, 10 carried respectively by reciprocating members 11, 12 driven by rollers 16 on the rotary driving shaft 4. The shafts 9, 10 may carry further tools whereby a plurality of parallel workpieces may be swaged simultaneously. The members 11, 12 are biased by springs 13, 13<SP>1</SP>. This type of driving shaft may be used in another embodiment, Fig. 3 (not shown), having a pair of pivoted levers carrying the tools. The driving shaft 4, Fig. 1, carries a flywheel 5 and is driven by an electric motor 2 through a safety coupling 3.
Patent GB-416703-A (GB)
Title: Improvements in or relating to the manufacture of photo-electric cells
IPC: H01J40/04
Filed: 1933-07-28
Abstract: 416,703. Photo - electric cells. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and SIMMS, C. H., c/o General Electric Co., Wembley, Middlesex. July 28, 1933, No. 21271. Drawings to Specification. [Class 39 (i).] A photo-electric cathode is formed by (a) oxidizing a metal body by a discharge in oxygen and (b) sputtering material from the anode by a discharge in a rare gas so as to form a layer of metal on the oxidized surface, the anode being connected as cathode, the step (b) being subsequent to the step (a) but prior to the heating of the metal body in the vapour of alkali metal. The metal body may consist of a layer of silver on a part of the envelope, and the anode of a rectangular frame of silver wire or of silver-plated or platinum-coated nickeliron wire. After evacuation, oxygen is admitted at a pressure of 0.75 mm. and a discharge passed until the metal surface assumes a blue-green colour. The oxygen is replaced by argon at a pressure of 0.75 mm. and a discharge passed with the anode as cathode and a current of 50 milliamperes for 15 seconds. Argon is removed and the cathode heated in caesium vapour in the manner described in Specification 345,375. According to the Provisional Specification the material may be evaporated from the anode.
Patent GB-299692-A (GB)
Title: Improvements in and relating to nail files
IPC: A45D29/04
Filed: 1928-07-23
Abstract: 299,692. Altenbach, O. July 23, 1928. Knives.-A nail file 10 provided with a handle 11 forming a shoe horn, is further provided with a hole or holes 17 having sharp edges which can be used to fit over and cut corns. The holes may be round, rectangular, or other suitable shape.
Patent GB-653391-A (GB)
Title: Ink feeding means for writing pens
IPC: B43L25/02
Filed: 1947-08-06
Abstract: 653,391. Inkwells ; reservoir nibs. ESTERBROOK PEN CO. Aug. 6, 1947, No. 21360. Convention date, Aug. 3, 1940. [Class 146 (iii)] For supplying ink to a pen comprising a feed-bar having capillary spaces and forming a fountain element, a capillary structure is mounted in an ink receptacle and is in engagement with the feed-bar of the pen above the level of the ink in the ink reservoir. An inkwell 10 is closed by a cover 11 having a plug socket 12 disposed in it at an angle as shown, the penholder 16 resting in a flared opening 15 of the socket. The capillary element 20 is supported by a pin 21 in a separate lower part 12a of the socket and comprises a rod of hard rubber or other suitable material slotted to give plate like parts 20a and a series of capillary spaces 20b in which ink may rise from the well 10. The upper portion of the element 20 is cut away at 20c to leave space for the feed-bar 18 of the nib 17, a spring 35 secured to the element 20 pressing the feed bar 18 into contact therewith. So that the ink shall not reach the nib 17 direct, the cover 11 partly fills the well 10, a mark being provided for filling purposes. The capillary element 20 may be replaced by spaced plates having a similar shape, or capillary tubes may be used, mounted on a stand in the we 1 10 and cut away under the feed bar 18, the socket 12 in this case being in one piece only. A socket i n one piece may also be used with the element 20 mou'nted therein. An inkwell made in two parts secured together may be used, the well being refilled through the opening for the socket 12 or through a separate opening. Nibs. The reservoir feed bar 18 for the nib 17 comprises air channels 18a and slots 18b extending longitudinally of the bar to a bevelled forward end 18c.
Patent GB-1351256-A (GB)
Title: Thin-wall plastics containers
IPC: B65D1/26
Filed: 1971-04-19
Abstract: 1351256 Portable containers; caps for containers SWEETHEART PLASTICS Ltd 19 April 1971 [10 Feb 1970] 21424/71 Headings B8D and B8T An upper section 14 of the side wall 10 of a one piece bi-stable container pressure or vacuum-formed from polystyrene sheet, is externally-threaded for the reception of a metal or other screw cap L and provided with a radial rim 22 and a nesting shoulder 18, to ensure that the threads of one container lie above the rim of the other container when two like containers are nested. The upper section on which the continuous or discontinuous threads 24 are provided, is cylindrical or upwardly and inwardly convergent, and the radial extent of the rim is such as not to interfere with the application of the cap which is provided with a gasket 36 (Fig. 3, not shown) adapted to seal against the rim. In an alternative embodiment, Figs. 4 and 5 (not shown), the shoulder is replaced by a nesting ring 44 formed in the base of a lower section 16 of the side wall.
Patent GB-638626-A (GB)
Title: Improvements in and relating to pipe brackets
IPC: E04D13/08
Filed: 1946-07-17
Abstract: 638,626. Wall brackets. RICHARDS, E. July 17, 1946, No. 21435. [Class 52 (v)] The base part 1 of a pipe supporting bracket has spaced projections 5 which abut the wall to facilitate firm fixing on an uneven wall surface. The base 1 carries a forwardly projecting web 10, of double channel section, to which the pipe clip 11 is bolted through a slot 9. The flanges of the web may be extended along the base 1 to protect the fixing screws from rain water. The upper and lower surfaces of the web 10 may be provided with grooves 7 or given an angular formation to assist drainage. In a modification the web 1 is slidably arranged in a forwardly projecting socket on the base member and it may be rotatable in the socket. Specification 253,183, [Class 99 (ii)], is referred to.
Patent GB-1072106-A (GB)
Title: Improvements in or relating to ventilating equipment
Inventor: GROLMAN HARTMUT VON
IPC: F24F7/06
Filed: 1964-05-25
Abstract: 1,072,106. Ventilators. H. LOHMANN, [trading as LOHMANN - APPARATEBAU KOMM.-GES.]. May 25, 1964, No. 21507/64. Heading F4V. A stable ventilator comprises a stable air inlet containing a fan 6, a filter covered fresh air inlet 4, an outlet 3 for stable air to atmosphere and a channel 5 discharging air from the ventilator to the stable, a flap 7 being provided to control the proportion of fresh air and recirculated air passed to the stable. The two extreme positions of the flap 7, Figs. 1 and 4 (not shown), correspond to passage through the channel 5 of stable air only, or fresh air only. The flap is tuned in accordance with the humidity or temperature of the stable air by a motor connected with a hygrometer or thermostat.
Patent GB-243829-A (GB)
Title: Improvements in solenoid operated mechanism
IPC: H01H50/20
Filed: 1924-09-11
Abstract: 243,829. British Thomson-Houston Co., Ltd., Trencham, H., Heath, H. C., Hamlyn, W. P., and Cox, H. E. Sept. 11, 1924. Electromagnets. - Solenoidoperating-mechanism for actuating circuit-breakers comprises a number of solenoids energized successively or having different operating characteristics and acting at separate places on a " floating " member connected with breaker, each solenoid when energized partly actuating the breaker independently of the other solenoids. In one arrangement, Fig. 1, pot solenoids 11 energized by closing relays 15 have their plungers 12 pivoted to a bar 13 which is pivoted at 16 to the operated breaker mechanism, the bar 13 itself having no fixed pivot. In modifications the solenoids may be located on opposite sides. of the " floating " bar. Time-lag devices may be employed between the solenoids and trip-free mechanism may be used with the breaker.
Patent GB-169435-A (GB)
Title: Tool holders for lathes and like metal cutting machines
IPC: B23B27/16
Filed: 1921-08-13
Abstract: 169,435. Simmons, C. A. Sept. 24, 1920, [Convention date]. Tool-holders.-A lathe or like tool 22,Fig. 11, is held in a longitudinal recess 3 at the end of a shank 1 by means of a clamping- plate 5, which makes pointcontact at 7, with the transversely-inclined holder 2 and is gripped by a ballseated screw 12. The clamping-plate is of approximately triangular form and is provided with a screw 16 for use when holding short tools, Fig. 1. Tools.-The tool 22, Fig. 11, is shown of hexagonal cross-section.
Patent GB-597672-A (GB)
Title: Improvements in elevators
IPC: B65G41/00
Filed: 1945-08-24
Abstract: 597,672. Portable elevators. WOLSELEY SHEEP SHEARING MACHINE CO., Ltd., and MACNAMARA, H. J. Aug. 24, 1945, No. 21669. [Class 78(i)] An elevator A comprising an inclined platform B over the floor of which pass slats C attached to endless chains c has a detachable extension platform D without moving slats provided at the upper end of the main platform. The material on the main platform passes on to the extension platform and is impelled upwards by the following material or by a wooden prop G impelled by the slats of the main platform. The articles are prevented from slipping back by inwardly extending plate springs g, f or by a roller J turnable in one direction only, provided with slats and mounted to turn in bearings of the extension platform.
Patent GB-456890-A (GB)
Title: Improvements in and relating to speed changing arrangements for three-phase shunt wound electric motors
IPC: H02K27/16
Filed: 1935-10-11
Abstract: 456,890. Alternating-current commutator machines. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Oct. 11, 1935, No. 21727/36. Convention date, Nov. 14, 1934. Divided out of 453,311. [Class 35] In a three phase shunt commutator motor, particularly for a knitting machine drive, wherein the stator winding can be connected to either of two sets of brushes at will, the main brushes are arranged on one portion of the commutator circumference and the auxiliary brushes on the opposite portion. In the form shown, the stator windings are connected to auxiliary brushes 3 when a low speed is required, and both these and the main brushes 1 are movable by means not shown.
Patent GB-1436839-A (GB)
Title: Steam rainsing plant
IPC: F22B33/00
Filed: 1972-05-10
Abstract: 1436839 Boilers G APPLEGATE 10 May 1973 [10 May 1972] 21730/72 Heading F4A In a steam raising plant a primary steam generator including a steam chest or drum 1<SP>1</SP> is selectively connectible to a plurality of separate secondary steam generators or boilers 2<SP>1</SP> which supply the drum 1<SP>1</SP> with steam. Individual flow pipes 3<SP>1</SP> extend from the boilers 21 to the drum 1<SP>1</SP> and are under the control of individual control valves 4<SP>1</SP>. A single return 8 extends from the drum 1<SP>1</SP> to a common header 9 which may have a blow-down connection and individual return pipes 10 extend from the header 9 to the boiler 2<SP>1</SP>. The individual return pipes 10 may be provided with control valves 11 so that boiler can be individually isolated from or connected to the rest of the plant.
Patent GB-1446306-A (GB)
Title: Rackets
IPC: A63B49/02
Filed: 1972-05-10
Abstract: 1446306 Rackets TANSIGLEN Ltd 9 Aug 1973 [10 May 1972 (2) 25 July 1972] 21765/72 21766/72 and 34618/72 Addition to 1223834 Heading A6D A racket comprises a toxoidal frame of a curved length of material the ends 12, 13 of the frame being spaced apart but indirectly joined together, a T-shaped shoulder piece 20 which receives both opposite end parts of the frame and includes a portion 23 extending generally radially of the frame for engagement with a shaft 14 of the racket. As shown the shoulder piece 20 comprising three tubular sockets 21, 22, 23. The ends 12, 13 may be spaced apart by the handle 14 extending therebetween; by the shoulder piece having an integral solid portion between the sockets (Fig. 2, not shown) or by a separate spacing member inserted between the ends or the ends may be spaced apart by the shoulder piece. The parts may be secured together by an adhesive or by welding in which case the sockets are not peripherally continuous or alternatively the shoulder piece may be formed of two opposite planar ears. The sockets may also be tapered to receive the ends as an interference fit Hollow rivets 28 may also be used such rivets corresponding with stringing holes of the frame. The shoulder piece may be constructed of plastics or of metal.
Patent GB-1405261-A (GB)
Title: Optical communications systems
IPC: H01L33/48
Filed: 1973-05-08
Abstract: 1405261 Light guides POST OFFICE 23 Aug 1973 [29 Sept 1972 8 May 1973] 45052/72 and 21882/73 Heading G2J A dielectric optical waveguide coupler has a cross-sectional area which increases as a monotonic function of distance from one end, located near a light source, to the other, located near a waveguide, e.g. a liquid-cored one, Fig.2 (not shown). A plurality of such couplers may be employed, the input ends being fed either by a single source, or by a separate source for each coupler, and the output ends may be juxtaposed, see Fig.9 (not shown). In one embodiment, Fig.10, a light-emitting diode 12, or a GaAs laser, is mounted, with a tapered dielectric waveguide 18 having cladding 2, in a container 9, cement 6 encapsulating the end 5 of the waveguide and the light source.
Patent GB-697142-A (GB)
Title: Method of making sponge rubber
Inventor: LEWIS ELISHA BETTS
IPC: B29C67/24
Filed: 1951-09-18
Abstract: <PICT:0697142/IV (a)/1> Sponge rubber is produced by mixing a latex of synthetic rubber with 2.25 per cent by volume of a solution of sodium silicate having a density of 41 DEG  B<\>ae and a ratio of sodium to silica of 1 : 3.22, introducing nitrous oxide gas into the mixture, subjecting the mixture to high speed agitation and curing. In an example, a mixture is made consisting of 50 per cent neoprene latex, sodium silicate solution of 41 DEG  B<\>ae, castor oil and a solution of sodium silicofluoride and introduced into a pressure mixing vessel 44, Fig. 3, by means of a supply pipe 46, nitrous acid gas is supplied under pressure through pipe 48, agitating being effected by blades 52, the foamed latex passes on to endless belt 56 through oven 59 in which partial curing is effected and then through a bath of hydrochloric acid 60 and a water bath 61, curing is then completed by means of infra-red lamps 63 and the product wound on to a reel 64.  In a modified apparatus, Fig. 1 (not shown), mixing is effected at air pressure and the product is cured and dried without using infra-red lamps.  The latex may also be of polyvinyl chloride, butadiene-styrene copolymer, butadiene-acrylonitrile copolymer or polyvinylidene chloride.  In addition albumen, accelerators, vulcanizing agents and proteins may be added, and the foam may be stabilized with alpha cellulose.
Patent GB-579679-A (GB)
Title: Improvements in apparatus for generating repeated electric pulses
IPC: H03K3/53
Filed: 1943-12-31
Abstract: 579,679. Pulse generating circuits. GENERAL ELECTRIC CO., Ltd., and MICHAELIS, W. M. Dec. 31, 1943, No. 21943. [Class 40 (v)] [Also in Group XXXV] A pulse generator comprises a sinusoidal voltage generator, supplying condensers and rectifiers connected as in a voltage doubling circuit, the pulses being produced by switching means which discharge periodically the condensers in series through a load circuit. In the system shown, a sinusoidal generator 1 charges condensers 5, 6 through inductor 4, transformer 10 and reversely connected rectifiers 9, 11. At the end of the charging cycle, the condensers are discharged through the, load 15 by closure of a switch 12, a transformer 8 in series with the condenser 5 and rectifier 9 matching the load to the impulse impedance of the condensers. Inductor 4, which may be in the primary or secondary circuit of transformer 10, or which may in fact be the leakage inductance of the transformer, resonates with condensers 5, 6 to improve the power factor of the system. Condensers 5, 6 may each be constituted by lengths of coaxial transmission line. In a modified circuit, the load transformer is arranged in the connection between condensers 5, 6. The switch 12 may be a rotary spark-gap or gas-filled triode operating synchronously with the generator.
Patent GB-726043-A (GB)
Title: Improvements in and relating to tunable cavity resonators
IPC: H01P7/06
Filed: 1953-08-11
Abstract: 726,043. Velocity-modulated tubes. GENERAL ELECTRIC CO. Aug. 11, 1953 [Aug. 11, 1952], No. 22137/53. Class 39 (1) [Also in Group XL (b) ]. A cavity resonator 18 for a klystron or other electron discharge device is tuned by moving a member 23 which is conductively connected to parts 24, 25 by means of flexible straps 26, 27 each having a single loop, Fig. 2a, which rolls along the length of the strap as the member 23 is moved. The resonator is vacuum tight; and metallic bellows 28 are used to provide a hermetic seal. The straps may be made of stainless steel or chrome iron, having their inner surfaces coated with a thin layer of silver or copper.
Patent GB-320967-A (GB)
Title: Improvements relating to oil filters
IPC: B01D35/04
Filed: 1928-07-31
Abstract: 320,967. Vokes, C. G. July 31, 1928. Magnetic separators. - In connection with an oil filter comprisconcentric annular screens the oil is delivered to the space within the innermost screen through a nozzle 2 provided with radial passages 17, from which the oil is delivered on to a magnetized disc 18 separated from the nozzle by a tube 19 and serving to collect ferrous sludge.
Patent GB-992616-A (GB)
Title: Position translating apparatus
IPC: G01F23/68
Filed: 1963-06-05
Abstract: 992, 616. Measuring liquid level electrically. LIQUIDOMETER CORPORATION. June 5, 1963 [June 14, 1962], No. 22333/63. Heading G1N. [Also in Division H1] A transducer for determining the level of liquid in a tank comprises a vertical resistance wire and a parallel spring contact wire which is made to contact the resistance wire at the liquid surface by a magnet carried by a float. As shown, the resistance wire 16 and the contact wire 20 are carried in a vertical cylinder 13 which keeps out the liquid 11, the former consisting of a wire winding on a flat former 17, and the latter consisting of a tightly coiled spring wire of magnetic conducting material, normally attracted to the lefthand side by a longitudinal strip magnet 28. The float 14 carries a strong permanent magnet 15 which rolls on the surface of the cylinder 13, and attracts the spring wire 20 to make contact with the resistance wire 16 at the liquid level. The spring wire 20 thus acts as the slider of a rheostat or potentiometer constituted by the wire 16. Specifications 651,306 and 992,617 are referred to.
Patent GB-502395-A (GB)
Title: Improvements in and relating to automatically controlled apparatus for heating liquids
IPC: F24H9/20
Filed: 1938-07-27
Abstract: 502,395. Heating water ; valve accessories. JUNKERS & CO., GES. July 27, 1938, No. 22345. Convention date, July 27, 1937. [Class 64 (i)] [Also in Group XXIX] A non-return valve 15, Fig. 1, in the watersupply pipe of a water heater 19 is provided with means for allowing boiler water to return past the valve to a drain cock 13. The non- return valve may be lifted from its seat by a screwed spindle 24. In a modification, the spindle is suitably shaped to carry the closure member of the drain cock. In further modifications, the top of the spindle engages an opening in a casing carrying the seating of the non-return valve or itself forms the seating. A casing 43, Fig. 7, carrying the seating of a non-return valve 15 is supported on spring 45 and forms a pressure-relief valve. The heater is drained by unscrewing a cap 44 or a plug which presses the spring against the casing 43. A pressure relief valve 43, Fig. 10, seats in an aperture in the bottom of a fixed casing 52 and supports the non-return valve 15, which, when the cap 44 is unscrewed to drain the heater, is supported away from the aperture in the casing.