baber/WOPTO huggingface dataset:
Patent GB-292003-A (GB)
Title: Improvements in or relating to lead propelling pencils
IPC: B43K21/08
Filed: 1927-10-13
Abstract: 292,003. Gmach, L. T., and Reliance Engraving Co. (1904), Ltd. Oct. 13, 1927. Pencil holders. - Relates to pencil holders of the type provided with screw-propelling mechanism consisting of a, spirally slotted or grooved member fixed in an outer casing and rigidly supported at both ends, a longitudinally-slotted tube rotatable in the member but immovable axially, and a propeller coacting with the member to propel the lead when the tube is rotated. The spirally-slotted member 8 is secured at its upper end in a metal boss 7 closing the end of the casing, and at the lower end in a metal sleeve 3 which serves as a connecting-element between two parts 1, 2 of the casing. The tube 9 is fixed at its upper end in the rotatable operating-head 11, and at the, other end is splayed out over a washer bearing against the end of the sleeve 3 so that the tube is rotatably carried. The propeller consists of a, length of wire 13 having a flattened upper end formed with a pair of teeth which pass through the slot of the tube 9 and engage, with the spiral slot of the member 8. A tube 5 is secured in the pointed lower end of the casing member 2, and serves to guide the lead and propeller 13.
Patent GB-1430998-A (GB)
Title: Photographic development process
IPC: G03C5/305
Filed: 1973-06-07
Abstract: 1430998 Developing photographic silver halide materials CIBA GEIGY AG 18 June 1974 [7 June 1973] 27191/73 Heading G2C Exposed photographic silver halide materials are developed in the presence of a development accelerator of the Formula:- where R 1 , R 2 , R 3  and R4 are each cyanoethyl, alkyl of 1-4 carbons, cycloalkyl, benzyl or phenyl. The accelerator may be present in any layer of the silver halide material or in the developer solution which may be a reversal first developer as used in colour reversal or a colour developer.
Patent GB-1311746-A (GB)
Title: Hydraulic brake and power service arrangement for vehicles
IPC: B60T13/18
Filed: 1970-06-05
Abstract: 1311746 Fluid operated brakes WESTING- HOUSE BREMSENUND APPARATEBAU GmbH 5 June 1970 [6 June 1969] 27287/70 Heading F2F In an hydraulic brake arrangement for a vehicle in which the same hydraulic fluid provides power for the brakes and for auxiliary services such as lifting-gear &c. a distribution valve is provided which valve has a first position in which, in use, pressurized hydraulic fluid is provided exclusively to the auxiliary services and a second position in which fluid is supplied to the brakes. The valve includes a control slide 3 in a cylinder 2 with two control discs 4, 5 co-operating with annular chambers 6, 7 of which chamber 6 communicates with the brake cylinders via a connection 8 and chamber 7 is connected to the power circuit via a connection 11. An annular chamber 13 between chambers 6 and 7 is connected via a port 14 to a pump 15 protected by a relief valve 16. Another annular chamber 17 communicates with the pressurefree return path 19 via a port 18 and co-operates with a control sleeve 20 displaceable on slide 3 against a spring 22. Pressure on slide 3 moves disc 4 to allow communication between connections 8 and 14.
Patent GB-1345046-A (GB)
Title: Phase separator for a liquid-liquid extractor
IPC: B01D17/02
Filed: 1971-04-19
Abstract: 1345046 Liquid-liquid separator METALLGESELLSCHAFT AG 19 April 1971 [25 April 1970] 27294/71 Heading B1D In a phase separator for a liquid/liquid extractor, liquid mixture fed via 23 into boxes 21 separates in the boxes into separate phases, the heavy phase overflowing the wiers, Fig. 9, to settle at the bottom of the separator, and the light phase flowing out through the gaps between the boxes, Fig. 10, to settle in the upper part of the separator.
Patent GB-1104219-A (GB)
Title: Improvements in or relating to high chambered horizontal coking retort ovens
Inventor: TUCKER LINWOOD GRAFTON
IPC: C10B21/22
Filed: 1966-06-17
Abstract: 1,104,219. Coke ovens; recirculating combustion gases. KOPPERS CO. Inc. 17 June, 1966, No. 27299/66. Heading F4B. In a hair pin flue type high chambered horizontal coke oven battery having heating walls comprising a series of pairs of flues 20A, 22A formed by partition walls 34 and division walls 40, the fuel gas supply conduits 48, 56 to high and low level burners 50, 52 in "on" flue 20B and the waste combustion gas conduits 42, 58 from high and low burners 46, 44 in " off " flue 22B extend downwardly through the walls of regenerator 26 beneath the heating walls and coking chambers to a gas distribution system having horizontal conduits 60, 62, 64, by means of which waste combustion gas from " off"  flues is mixed with rich fuel gas going to " on " flues. Waste combustion gas from the " off " flues also flows downwardly through passages 33 and some of the regenerators 26, combustion air flowing upwardly through the other regenerators to the " on " flues. Each regenerator has a pair of sole flues 30 associated therewith. In a second embodiment recirculation gaps are provided at the foot of partition walls 34 to allow additional passage of waste combustion gas from the " off " flue to the " on " flue, the high level burners being arranged in pairs on opposite sides of a division wall.
Patent GB-646425-A (GB)
Title: Combustible gas or vapour detector and indicator
IPC: G01N27/16
Filed: 1946-09-12
Abstract: <PICT:0646425/III/1> Means for detecting combustibles in an oxygen-containing atmosphere comprises a substantially vertical container 7 through which the atmosphere under test is drawn and in which is positioned a differential temperature-responsive device 11, one end of which is in contact with an oxidation promoting material 13 while the other end is in contact with an inactive material 12, and a source of burning fuel 5 positioned within the container and which heats both the oxidation and inactive material.  The active material is a platinum group metal or a granular mixture of metallic oxides and the differential temperature responsive means are two mercury or bimetallic thermometers, two thermocouples or a metallic strip, one side having a platinum metal surface which is the oxidizing agent and the strip bends according to the heat generated. Atmosphere is drawn through tube 8 by convection and is divided into two streams, one passing over the oxidant the other over the inactive material.  If any combustible is present the heat generated in its burning raises the temperature in its vicinity and so is shown on a galvanometer 15 connected to the differential means 11.  Air to feed the flame 5 burning the fuel 3 p  enters between the container 7 and a chimney 6, passes therebetween and thence up the chimney thereby heating the tube 8 and setting up the convection current.  In a modification, Fig. 5 (not shown), the apparatus is surrounded by a double layer of gauze to filter the atmosphere and thus lessen the explosive hazard when using the apparatus.  Specifications 402,011 and 645,252 are referred to.
Patent GB-874914-A (GB)
Title: An improved method and apparatus for weaving
IPC: D03D47/00
Filed: 1957-08-30
Abstract: 874,914. Jet looms. WILLI, R., and KLEIN, J. Aug. 30, 1957 [Sept. 5, 1956], No. 27449/57. Class 142(2) The end of a weft thread being blown into the shed by an air nozzle 11 is initially held by a clamp 46 so that the weft is inserted as a loop which straightens out when the end is released. The clamp 46 is oscillated to press the weft against upper and lower spring-loaded members 49, the previously-inserted pick being cut by a blade 47 as clamping occurs.
Patent GB-348986-A (GB)
Title: Process for absorbing oxides of nitrogen
IPC: C01B21/26
Filed: 1930-09-15
Abstract: Gases containing oxides of nitrogen oxidized as far as possible and rich in oxygen, obtained by burning ammonia with oxygen or gases rich in oxygen, are absorbed according to the process of the parent Specification, the concentration of nitric acid employed in the initial stage being not less than that which would be in equilibrium with the oxides of nitrogen in the treated gases.  The waste of gases, after replenishment with oxygen, are returned to the ammonia combustion chamber.
Patent GB-1486364-A (GB)
Title: Temperature probe covers
IPC: B65D75/38
Filed: 1975-06-30
Abstract: 1486364 Seaming non-metallic sheet material S G DAWSON and C F FOWLER 30 June 1975 [15 July 1974] 27548/75 Heading B5K [Also in Division G1] A sheath, used for covering a thermometer, comprises plastics sheets 60, 62 bonded together with a graduated-strength bond. A welding head 66 comprises ribs 72, 74 and a rib 76 which has a tapered edge 78; in use it is pressed against the sheets 60, 62 positioned on a release sheet 70 on a rubber platen 68 with a guide finger 64 which keeps the sheets apart between the ribs 72, 76. The graduated bond formed by the tapered rib 76 can separate in use to provide a close fit around a thermometer as it is inserted into the sheath between the seams formed by the ribs 72, 76.
Patent GB-1378544-A (GB)
Title: Rotary sliding vane compressor with hydrostatic bearings
IPC: F04C29/02
Filed: 1972-06-13
Abstract: 1378544 Rotary positive-displacement pumps BORG-WARNER CORP 13 June 1972 [16 July 1971] 27550/72 Heading F1F In a sliding-vane-type refrigerant-compressor the rotor 21 is centred relative to fixed plates 15, 16 by pressurized oil in annular cavities 75,76, the oil being drawn from a reservoir 44 and delivered to the cavities by a gerotor-type pump 54. A bore 68 through which the oil passes to the cavities also communicates with slots 22 for the vanes 23 through a passage 69, an annular groove 71 and passages 72 so as to bias the vanes outwardly. The pump 54 is driven by the shaft 29 for the rotor and has inlet and outlet ports 63, 64 in a plate 62. A reed-type valve-assembly 38 controls discharge ports 39. The discharge end of a tube 88 and an outlet 95 for the compressed refrigerant have therebetween an oil separator 89 comprising a screen made of a gas permeable material such as metal fibres.
Patent GB-755306-A (GB)
Title: Improvements relating to rotary letterpress two side or perfecting machines
Inventor: KALDSCHMIDT GEORG
IPC: B41F21/10
Filed: 1954-09-24
Abstract: 755,306. Rotary printing-machines. VEB DRUCKMASCHINENWERK VICTORIA. Sept. 24, 1954, No. 27669/54. Class 100 (2). Perfecting.-A rotary letter-press printing- machine for printing on both sides of sheets comprises two printing couples, each having an impression cylinder 4, 13, Fig. 1, and a printing cylinder 5, 14, the sheets being transferred from the first to the second printing couple by rotary transfer devices 6, 10 and interposed drums 9, 11. The transfer devices 6, 10, each comprise a shaft 7, Fig. 2, and spaced discs 8 which are adjustable in position so as to avoid contacting printed portions of the sheet, Grippers of the impression cylinder 4 pass the sheet to grippers on the transfer device 6, the printed side of the sheet then facing inwardly. The sheet then passes round drum 9 being held by grippers thereon and may be subjected to a blast of hot air from nozzles 12 to aid drying. Grippers on transfer device 10 then take the sheet and forward it to drum 11 which passes it to the second printing couple 13, 14, which prints on the other side. The sheets are delivered by a chain deliverer 15 of known kind. The transfer means comprising devices 6, 10 and drums 9, 11 bridge an opening in the frame which allows a carriage 17 to enter to bring a printing cylinder into position for mounting on the machine. Both printing cylinders 5 and 14 may be interchangeable with other cylinders so that one set may be made ready for printing during the printing operation on other set.
Patent GB-1223455-A (GB)
Title: Improvements in or relating to induction plasma generators
Inventor: THORPE MERLE LEE
IPC: H05H1/30
Filed: 1968-06-11
Abstract: 1,223,455. Induction plasma torch. HUMPHREYS CORP. 11 June, 1968, No. 27731/68. Heading H5H. In order that an induction plasma torch may be used for monatomic and diatomic gases, the gas is caused to flow through induction chamber 30 as an annular sheath engaging the chamber wall and means is provided to control independently a tangential swirl stabilization component and a radial component of said gas flow. The gas injector structure 32 is spaced from the wall of chamber 30 to define a cylindrical passage 152 which is supplied with gas through a circular array of radial apertures 118 and through a circular array of tangential swirl stabilizing apertures 120. A circular array of axial apertures 114 is also provided for gas supply. Radial apertures 118 are supplied from conduit 142 via passages 138; tangential apertures 120 are supplied from conduit 150 via a radial passage 148 an annular passage 102, and an axial passage; and axial apertures 114 are supplied from conduit 130 via passages 128, 126. The induction coil 12 is wound on a quartz tube 22 coated internally at 24 with gold to reflect heat. Tube 22 is resiliently supported by O-ring seals 26 at both ends. Coolant flows from coil terminal 62 through channel 64 to an annular groove 100 in injector 32, thence through a channel 66 to a cylindrical channel 68 containing the coil. A parallel flow path exists direct from channel 64 to channel 68. Coolant flows from channel 68 to chamber 70 to cool nozzle 40 and emerges via passage 74 from the other coil terminal 76. A metal probe 42 through which material can be injected into the plasma passes through injector 32 and has a double annular wall supplied with coolant from conduits 48, 50. The nozzle 40 may be provided with copper inserts for different functions. One such nozzle insert has an annular coolant chamber and another may have radial ports for introducing material to be spheroidized. The plasma may be initiated by sparking at conductive lining 24 of quartz tube 22, by a temporary graphite rod, by earthing either nozzle 40 or injector end plate 38, or by an auxiliary D.C. arc. Monatomic e.g. argon is introduced through axial inlet 130, no gas is introduced through radial inlet 142, and argon is introduced through tangential inlet 150. Once a plasma has been established the generator may be switched to diatomic gas e.g. nitrogen or oxygen by supplying the diatomic gas to inlets 142 and 150. Thereupon the argon supplies are cut off and the power supply increased. The torch is used for metal working, for working refractories or carrying out chemical reactions.
Patent GB-665071-A (GB)
Title: Improvements in or relating to electrical contact springsets
Inventor: EDWARDS WILLIAM DOUGLAS
IPC: H01H50/56
Filed: 1949-10-29
Abstract: 665,071. Electromagnetic relays; contacts. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Oct. 13, 1950. [Oct. 29, 1949] No. 27755/49. Class 38 (v). In a contact spring set for relays &c. particularly adapted for tropical conditions and wherein the contact springs 13 are separated from each other by insulator plates 14 and the whole clamped by screws 18 between upper and lower metal plates 16, 15; some or all of the contact springs and insulator plates have cutout portions such as 17 which provide a clear space round the clamping screws which space is open to atomosphere. Cavities into which moisture may penetrate and which result in a lowering of insulation resistance are thus avoided. Additional cut-out portions 21 may be'provided enabling the spring set to be roughly aligned by screws at 19' and 20 before the spring set is applied to the yoke of a relay containing tapped holes to receive the screws 18. After mounting on the yoke by the screws- 18 the screws at 19, 20 are removed.
Patent GB-314787-A (GB)
Title: Improvements in or relating to artificial silk
IPC: D02G3/40
Filed: 1928-09-28
Abstract: 314,787. Sondermann & Co. July 2, 1928, [Convention date]. Addition to 297,778. Right to Patent relinquished. Yarns &c.-The sizing operation in the process for making untwisted sized artificial silk yarns, described in the parent Specification, is performed during the passage of the threads from the bobbins a to a warping beam d<1>, or in the case of weft threads between these bobbins and the cops or weft bobbins. The threads pass over guide sheaves r and through raddles k, and the size is applied by a roller s, the threads being dried by means of the apparatus c.
Patent GB-603541-A (GB)
Title: An improved shock absorbing mechanism for use in connection with weighing apparatus
IPC: G01G21/10
Filed: 1945-10-24
Abstract: 603,541. Rubber buffers. AVERY, Ltd., W. & T., and THOMPSON, D. Oct. 24, 1945, No. 27993. [Class 108 (iii)] [Also in Group XVIII] A shock-absorber for weighing-apparatus comprises a lever whose free end is contacted by the weights box or scale pan on. its descent and whose other end is harnessed to a bonded indiarubber torsion disc secured to the frame of the apparatus, A machine of the evenarmed weigh-beam type has levers 3 whose free ends are located below and to one side of the weights box 1 which has projections 1a to depress them on its descent. Each lever has a disc 3a bolted to a coupling plate 5 of a'rubber disc 6 which is bonded thereto and to a coupling plate 7 bolted to the frame. A stop 8 with locking-nut 9 limits the upward movement of the levers.
Patent GB-1061431-A (GB)
Title: Improvements relating to the coating of webs with liquid compositions
Inventor: GEEST WILFRED FLORENT DE
IPC: B05D1/04
Filed: 1963-07-16
Abstract: 1,061,431. Web coating apparatus. GEVAERT PHOTO-PRUDUCTEN N. V. July 9, 1964 [July 16, 1963; (2)], Nos. 28048/63 and 28049/63. Heading D1L. In a method of coating a liquid composition on to a web, the liquid is caused to move upwardly on to the web at a zone extending laterally of the web while the web is advanced through said zone and while maintaining an electrical potential difference between the lipuid composition passing to the zone and a member or part which is close to or in contact with the opposite side of the web. The liquid composition may be supplied to a position below and spaced from the web such that either a meniscus can be maintained between the liquid and the web by surface tension effects alone or is dependent for its maintenance on the electrostatic field. The said member or part may be in the form of an electrode-forming roller having an inculated outer layer in contact with the web, the potential difference may be maintained by a D.C. or an A.C. source and the field may be confined within lateral limits which exclude marginal portions of the web. In the embodiment shown in Fig. 1, film 11 is passed over roller 12 to a backing roller 13 which is mounted in an insulated manner above bath 16 of a photographic emulsion 16 in a pan 17, means (not shown) being provided to maintain a constant level. The coating on the web is metered by an air-knife 18, variation in air volume, pressure and angle of incidence being used to control coating thickness. The film is then conducted over further rollers 19, 20 to a drying section. Pan 17 and thereby the coating emulsion therein are earthed whilst roller 13 is connected to one terminal of a potential source the other terminal of said source being also earthed so that an electrostatic field can be maintained between the roller 13 and the coating emulsion. In this embodiment the meniscus can be maintained by surface tension alone but by placing the pan 17 further from the roll 13 an embodiment in which the meniscus is maintained only with the aid of the electrostatic field is produced. A doctor roller may be used instead of the air knife 18. In another embodiment (Fig. 5 not shown) the coating roller is partly emmersed in the bath of liquid emulsion and the film is led in contact with the top of the roller there being a conductive member on the remote side of the web connected to a potential source, the bath of liquid again being earthed. In a further embodiment (Fig. 8, not shown) the meniscus is formed between the web, travelling around a backing roller, and a roller which carries emulsion upwardly as a layer from the bath to the coating zone.
Patent GB-1222139-A (GB)
Title: Control equipment for continuous production lines
Inventor: BRINKEBORN BERTRAM
IPC: H02P5/50
Filed: 1968-06-13
Abstract: 1,222,139. Control of several D.C. motors. ALLMANNA SVENSKA ELEKTRISKA A.B. 13 June, 1968 [14 June, 1967], No. 28068/68. Heading H2J. [Also in Division G3] In an arrangement for speed control of the several motors M1-M7 of a continuous production line, such as a wire drawing bench or rolling mill, each motor is provided with a speed sensing device, such as a tachometer generator T.G., arranged to feed back a speed dependent signal to a control amplifier 24 through diodes D1-D7 so that only the greatest signal is applied to the amplifier. Each motor has an individual controller 11-13 responsive to the output of the amplifier 24 and is under the control of a master controller 20 by which the overall speed of the production line is set. Since only the fastest motor feeds an error signal to the control amplifier, only this motor is under the control of the master controller 20 while the speed of the other motors is determined by the control amplifier. Since only the fastest motor is speed controlled none of the motors can be overdriven and breakages of wire, &c. are effectively prevented. If a breakage does occur near one motor, removing its load, it will run fast and therefore develop a large error signal which is fed back to the amplifier 24 to stop all the motors. The controllers 11-13, 20 are transductor controller rectifiers. Switches S1-S7, R1-R6 allow for starting the motors in sequence.
Patent GB-281345-A (GB)
Abstract: 281,345. Robert, H. Jan. 19, 1927. Chimney and ventilating-shaft tops.-A revolv. ing cowl consists of a cylindrical casing a enclosed at its lower part by a stationary cylinder e, and four vertical flues b are connected to the rotating cylinder at their lower ends. An encasing band d is attached to the tops of the flues which are open to the atmosphere. A deflecting plate c and cone f, having wind vanes, are fitted at the upper end of the cylinder a, and the latter is adapted to rotate on a spindle g.
Patent GB-616991-A (GB)
Title: Improvements in circular saw machines for removing surgical bandages and the like
IPC: A61F15/02
Filed: 1946-09-19
Abstract: 616,991. Cutting bandages. JOHNS, A. F. Sept. 19, 1946. No. 28135. [Class 81 (ii)] [Also in Group XXIII] In a portable circular saw machine for removing surgical bandages having a guard underneath the saw to prevent injury to the skin, a guard casing comprising a segmental disc covering the upper part of the saw is provided and a single flat pivoted guard plate covers the lower part of the saw and is arranged to be raised to expose the saw when cutting while normally covering the cutting portion of the saw. As shown a circular saw 3 mounted on an electric motor has a guard case 1 covering the upper portion and a plate 5, pivoted at 4 and having a straight upper edge 5a and a lower edge 5b curved to the outline of the saw edge, is urged by a spring 7 to cover the lower portion of the saw. In use a part 2 is inserted under the bandage which in turn, raises the plate 5 and allows the saw to cut, the plate 5, guided by a pin 10 in a slot 5c being able to ride over any uneven portions of the surface. Specifications 549.874 and 616,664, [both in Group XXIII], are referred to.
Patent GB-687187-A (GB)
Title: Improvements in or relating to bottles for forming films from liquids
Inventor: CUTTELL JOHN REGINALD
IPC: B01L3/14
Filed: 1949-03-31
Abstract: 687,187. Bottles etc.; stoppers &c. ASTELL LABORATORY SERVICE CO., Ltd. March 31, 1950 [March 31, 1949], No. 28141/51. Divided out of 687,137 [Group II]. Classes 125(i) and 125(iii) A bottle 1 of drawn glass and constant diameter has a shouldered neck 2 of slightly less diameter and a conical depression 6 in its base 5. Closed by a rubber bung 3 having a central depression 4 and mounted between centering devices the bottle can be rotated to produce an even film by centrifugal action. Specification 645,733 is referred to.