baber/WOPTO huggingface dataset:
Patent GB-1456905-A (GB)
Title: Wave guide
IPC: H01P3/14
Filed: 1974-02-18
Abstract: 1456905 Circular waveguides LES CABLES DE LYON 18 Feb 1974 [26 Feb 1973] 7336/74 Heading H1W In order to preserve the lay of the wire in a flexible waveguide made of a helical winding, the cross-section of the wire 7 is parallelogram and the wire is covered with an insulant having a relatively high coefficient of friction. The insulant 6 may consist of e.g. a polyamide or polythene dissolved in xylene. The wire 7 may be bimetallic so that the winding presents an internal side of e.g. copper having good conductivity, and an external side made of aluminium or iron. An insulating sheath 2 may be attached by an adhesive cement 5 to the helical winding which is previously coated with e.g. polyethylene.
Patent GB-163841-A (GB)
Title: Improvements in time-checking apparatus for watchmen and others
IPC: G07C1/20
Filed: 1920-03-11
Abstract: 163,841. Cope, D. March 11, 1920. Time-checking apparatus, check-and-token.-A time-checking device for watchmen &c. comprises a box divided into a number of timemarked compartments into one of which a watchman drops a check or token at each visit, and by pulling back a slide covering the aperture of the compartment into which the token has been inserted a code word or message is disclosed, which the watchman is able to telephone to a distant station or record on the travelling-sheet of an adjacent clock-driven timing-device. The box 1 has upper and lower covers 10, 2, which are both shown as opened out in plan view, Fig. 1, each with a token aperture 19, 3 respectively, through which a token may be dropped into a compartment at a time marked on a tablet 11. The slide 5 of the compartment corresponding is then pulled back by means of a pin 9 projecting through the slot 19 in the upper cover, thereby closing the token aperture and uncovering a tablet 4, on which is written a code word or message. This is visible through a slot 12 in the upper cover 10. The slide members 5 are guided by side strips 6 and are arranged to be held in the open or closed position by catches 7. These catches are spring-pressed members, positioned so that one presses against the under surface of the slide when the slide is in the closed position, the other catch 7 being arranged to engage the edge of the slide when it has been moved to close the token aperture 3.
Patent GB-802314-A (GB)
Title: Device for lowering and raising ships
IPC: B63B9/00
Filed: 1957-03-06
Abstract: 802,314. Lowering and raising ships. VEB VOLKSWERFT STRALSUND. March 6, 1957 [April 12, 1956], No. 7394/57. Class 68(2) A device for lowering and raising ships comprises a skid-shaped member 10 pivoted at 9 to the quay-side and formed with blowable and floodable chambers 13 and with rails 12 for the slipway truck 6.
Patent GB-669100-A (GB)
Title: Improvements in open fireplaces
IPC: F24B1/19
Filed: 1949-03-18
Abstract: 669,100. Open fireplaces. DUNN, A. A. July 13. 1950 [March 18, 1949], No. 7420/49. Class 126 A front for an open fireplace of the type having a grate with an ashpit below it and a front serving as a wall to the grate and a closure to the ashpit has an air admission door in front of it and back bearings at either end to receive trunnions extending backwardly and upwardly through the air admission doorway from the door, so that the door tends to close by gravity, and a door-opening cam device which co-operates with a fitting on the door extending backwardly through the door way. As shown, the fireplace front 6 is provided with an ashpit door 8 having an air admission door 7. The ashpit door has a fitting 16 at either end formed with a downturned catch 17 which engages a lug 18 integral with the fireplace and having an upstanding bearing 22. The air-admission door carries swan necked fittings 26 at each end having trunnions 28 fitting into bearings 22. The ashpit door 8 is provided with an axle 23 carrying a handle 24 and a twosided cam 25 engaging a member 27 extending backwardly from the air-admission door 7. The handle 24 engages a ridge 29 formed on the outside of the door and holds the door tightly closed when the handle is in its mid-position. The door may be opened by turning the handle in either direction.
Patent GB-753743-A (GB)
Title: Fastening of packing cases
Inventor: WIGLEY KENNETH PETER EDWARD
IPC: B65D6/36
Filed: 1954-03-15
Abstract: 753,743. Stud-and-socket fastenings: screw fastenings ; box, fastenings. WIGLEY & SONS, Ltd., B. March 15, 1955 [March 15, 1954], No. 7458/54. Class 44. [Also in Group XVII] A clip for joining two walls of a box consists of an angle-piece, one limb 5 of which is secured to one wall and the other 6 has open-ended slots 8 for engagement by bolts 12 screwing into the other wall. The bolts 12 may be captive in a plate 10, and the plate 10 and limb 6 may be serrated to enhance the grip between them.
Patent GB-555880-A (GB)
Title: Improvements relating to brushes for purifiers or sieving machines
IPC: B07B1/52
Filed: 1942-06-02
Abstract: 555,880. Sifting apparatus. SIMON, H., Ltd., WATTS, G., and BALL, J. S. June 2, 1942, No. 7494. [Class 117]. The brush e for cleaning the sieves a or collecting trays d of purifiers or sifting machines, is mounted on a stock e<SP>1</SP> carried by a frame h which is pivotally mounted on a carriage h<SP>1</SP> running on rollers i on a rail k. A weight m at the top of the frame biases it to one side of other from the vertical and causes a pivoted shoe n to bear on the under side of the rail. The sieve reciprocates in a direction perpendicular to the rail which is caused to reciprocate longitudinally through an arm o, p connected to the sieve frame rocking a spindle q in fixed supports r and actuating the rail by a connecting rod. The shoe n acts as a one-way clutch causing the carriage to traverse along the rail in intermittent movements until it strikes a stop u. The momentum of the weight m tilts the frame h in. the opposite direction and the travel of the carriage is reversed. The brush is also raised into an inoperative position as at v. In a modification, not shown, the carriage has pivoted to it a three-armed lever, one arm of which is connected to a fixed bracket by a spring so as to snap quickly from one side to another. In either position, one of the other arms is actuated by a bar reciprocating with the sieve frame to traverse the brush across the sieve. At the end of one traverse a bracket on the reciprocating bar reverses the position of the lever and the direction of traverse of the brush. Simultaneously the brush is lifted to an inoperative position through a spring controlled lever which turns the brush stock about a pivot. Alternatively, the brush may be arranged to operate in both directions of traverse.
Patent GB-696890-A (GB)
Title: Improvements in apparatus for drafting textile fibres
Inventor: AMBLER GEOFFREY HILL
IPC: D01H5/22
Filed: 1950-03-25
Abstract: 696,890. Textle drafting apparatus. AMBLER SUPERDRAFT, Ltd. Feb. 5, 1951 [March 25, 1950], No. 7524/50. Class 120(ii) A unitary structure for a drafting apparatus consists of a main supporting body on which are mounted a pair of feed rollers, a pair of intermediate rollers and ,gearing for connecting at least one each of the rollers to driving gear in the apparatus. The invention is described as applied to drafting apparatus as disclosed in Specification 671,633 modified in that feed rollers 13, 14 form a part of the removable unitary structure. Roller 14 is mounted in the main body 26 of the unit and roller 13 is rotatable in a forked supporting bracket 76 pivotally mounted on a - pair of pins protruding from the body 26, - the upper roller 13 being urged towards the lower roller 14 by a pair of springs 78 each attached at one end to a pin 79 in the bracket 76 and at the other end to a pin 81. When the roller 13 is swung clear of the lower roller 14 for threading, the - springs 78 retain the roller 13 in inoperative position. The bracket also carries a feed guide 12 freely pivoted on the pin 79. Specifications 671,637, 671,638. 671,639, 671,641, 671,643, 678,163 and 696,882 also are referred to.
Patent GB-583875-A (GB)
Title: Improvements in the manufacture of organo-silicon polymers
IPC: C08G77/00
Filed: 1944-04-24
Abstract: Siloxanes are further polymerized by treatment with strong alkali at elevated temperature, but below that at which complete removal of organic radicals would be effected.  Alkaline agents specified comprise alkali metal oxides or hydroxides or quaternary ammonium bases and are used anhydrous or in non-aqueous solution, e.g. dissolved in alcohol, any water present being less than 15 per cent of the reaction mixture and the water formed during the reaction being removed continuously.  Under such conditions, the amount of alkali added determines the amount of polymerization which takes place, the quantity to be added varying inversely with the degree of polymerization desired, the smaller the quantity of alkali the higher the degree of polymerization obtained; the water may be removed by heating in the presence of an inert solvent, i.e. one containing no hydroxyl groups, e.g. toluene or benzene. Mixtures comprising the trimer and tetramer of dimethyl silicone having a viscosity of 2.84 centistokes are heated to 130-150 DEG  C. with calculated amounts of solid sodium hydroxide and products having the following viscosities are obtained according to the ratio employed of silicon atoms in the polymer to sodium atoms in the sodium hydroxide added. .Ratio of Si/Na.Viscosity in Centistrokes .atoms..of product .15.49.4 .30.86.99 .60.208 .90.2825 .125.19000 .500.Gel
Patent GB-1065531-A (GB)
Title: Improvements in transistors
IPC: H01L23/482
Filed: 1964-03-29
Abstract: 1,065,531. Transistors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 29, 1964 [March 29, 1963], No. 7584/64. Heading H1K. In a junction transistor in which the base zone occupies only a limited part of the body cross-section the emitter zone is in an elongated recess in a base contact layer which substantially surrounds it, the layer being widened at the point at which a supply conductor is secured to it. The recess and the widened part of the base contact layer are preferably the same shape and size and may be arranged with their longitudinal dimensions in line, as in Figs. 6, 7, 8 and 11 (not shown), mutually perpendicular as in Fig. 5 (not shown) or side by side as in Figs. 1, 3 and 4 (also not shown). The recess is typically oval, rectangular or semi-circular. Preferably the supply conductors are thermocompression bonded to the emitter zone and base contact layer by means of a pressure chisel. In this case although the bonded area extends mainly in the direction of elongation of the chisel i.e. at right angles to the axis of the wire the maximum spread of wire material over the contacted surface is along the axis of the wire. Therefore generally the wires are arranged with their axes along the longitudinal direction of the recess and widened part of the base contact layer. If, however, short-circuiting of the emitter-base junction as a result of this spread is prevented, as by an oxide film on the semi-conductor or base contact material the wires may have their axes perpendicular to this. In a typical NPN germanium transistor, Fig. 2, the base zone is formed by diffusion into an N-type wafer from an indium-germanium source. An evaporated base contact 6 of aluminium indium alloy is alloyed to it and the emitter zone 5 then formed by diffusion from arsenic vapour. The layers are finally reduced to mesa form by etching. In an alternative method the emitter diffusion precedes formation of the base contact.
Patent GB-1381944-A (GB)
Title: Apparatus for controlling weight and distribution of a coating
IPC: B05C11/06
Filed: 1972-02-18
Abstract: 1381944 Controlling coating weight in hot dipping USS ENGS & CONSULTANTS Inc 18 Feb 1972 [23 Feb 1971] 7691/72 Heading C7F A hot dip coating weight control apparatus 18, comprises a series of nozzles 30 with different arcuate slot lengths, mounted around the periphery of a header 22 and means for rotating the apparatus about the header axis to bring the appropriate nozzle opposite the moving coated substrate S. The flow of fluid e.g. air, from the header to the unused nozzles is stopped by baffle 38. Two, three or four nozzles may be mounted on the header 22 which is journalled in housing 23 and rotation is effected by wheel 25 and worm 26. Horizontal adjustment of the nozzles is by motor driven screw 27 and fluid is supplied to the nozzles by flexible connectors and releasable couplings. The baffler 38 is replaced by a screen 40 in the operative nozzle which is inclined at 20 degrees above to 45 degrees below a plane normal to the pass line of substrate S. The apparatus enables a nozzle of correct slot length to be quickly positioned when the strip width S is changed. The apparatus may be used in hot dip coating of steel strip with Zn, Al, Sn, Pb or their alloys.
Patent GB-472166-A (GB)
Title: Improvements relating to ovens
IPC: A47J39/00
Filed: 1936-03-14
Abstract: 472,166. Ovens or hot food receptacles. PERKS, T. E., and PROSPER EQUIPMENTS, Ltd. March 14, 1936, No. 7697. [Class 126] An oven, intended particularly for keeping cooked food such as fish and chipped potatoes hot, comprises a casing 12 in which is located an open-topped food container 13 having an inclined bottom wall 17 perforated over a relatively small area 25 at its lower end for the passage of hot gases into the container, the wall 17 being continued outside the casing and turned upwardly at 21 to form a food-removal trough 22. This trough is fitted with a hinged lid 23 and communicates with the interior of the container 13 by means of a slot 24 in the rear wall 18 of the casing. The door 19 of the container is so arranged that, when opened, it is held in an inclined position so as to serve as a slide for fresh material fed to the container. The side walls of the latter are spaced from the side walls of the casing to provide flues for external heating, the gases passing upwardly through and around the container being utilized for heating a drawer 37 having a perforated bottom 38 and arranged to be opened from either side of the casing. The oven is heated by gas burners 28 disposed in a chamber 27 to which air is admitted through an aperture 31 controlled by a hinged flap 32, the position of this flap being adjusted by a screw bolt 35 bearing on the casing at, its inner end. The Provisional Specification describes also a construction in which apertures in the base of the food container are individually controlled by valves which are opened against springs by the weight of material resting thereon, and a further construction in which a hopper-shaped container is pivotally mounted in the casing so that it may be tilted outwardly in either direction to provide ready access to the interior. Specification 443,249 is referred to in the Provisional Specification.
Patent GB-1517894-A (GB)
Title: Method for protecting ships against fouling
IPC: B63B59/04
Filed: 1977-02-24
Abstract: 1517894 Coated marine surfaces O RASMUSSEN 24 Feb 1977 [26 Feb 1976] 07777/ 77 Heading B2E Ships and sub-aqueous surfaces are protected against corrosion by application of a coating wax which consists of several layers of wax applied in sequence, the layers differing in physical properties so that they can be removed successively after they have become subjected to growth formation. One or more of the wax layers may contain an anti-fouling composition and the wax may be applied as a melt or a dispersion by immersion or spraying. The layers may be removed by brushing, the pressure of brushing being regulated in accordance with the layer to be removed or by the application of water whose temperature is adjusted in accordance with the melting point of the layer to be removed.
Patent GB-521324-A (GB)
Title: Improvements in or relating to the production of glass fibres or like inorganic fibre
IPC: C03B37/06
Filed: 1939-03-10
Abstract: 521,324. Making glass threads. ALGEMEENE KUNSTVEZEL MAATSCHAPPIJN.V. March 10, 1939, No. 7823. Convention date, March 10, 1938. [Class 56] Relates to the method of making glass fibres in which streams of molten glass are drawn out by blasts of steam or gas, as described in Specification 428,720. According to the invention, the blasts are formed by a series of jets with relatively quiescent regions between them, the streams of glass being introduced into the quiescent regions. The glass flows through nipples 45 in the bottom of a V-shaped trough 40 which is electrically heated. The blowers each comprise a pressure chamber 63 formed with a number of nozzles or passages 65 through which the steam or other gas is blown against the streams of glass. The nozzles are inclined to the vertical at an angle of 10-14, and the nozzles of the two blowers are arranged opposite one another, so that the blast from opposite pairs of jets are merged into separate blasts separated by relatively quiescent zones into which air is induced from over the tops of the blowers. The position of the blowers can be adjusted so that each stream of glass from a nipple 45 enters a quiescent zone. The fibres, formed by the blasts are carried away by a conveyer.
Patent GB-1451069-A (GB)
Title: Fans suitable for gas turbine ducted-fan engines
IPC: F01D25/16
Filed: 1973-02-17
Abstract: 1451069 Gas turbine ducted fan engines DOWTY ROTOL Ltd 14 Feb 1974 [17 Feb 1973] 7887/73 Headings F1C and F1J The invention relates to a ducted fan assembly or module which may be secured to the front of a main gas turbine engine to convert the engine to a ducted fan type engine. The fan assembly shown 'comprises a non-rotative sub-assembly comprising a frame member 11, stator vanes 17 and a fan duct casing 16, the sub-assembly being adapted to be secured at the forward end C of a gas turbine engine B. A fan rotor shaft 36 is rotatably mounted in bearings 14, 15 within the frame member 11, the shaft being driven from the engine shaft by means of a splined shaft 37. The fan rotor assembly is mounted on the shaft 36 and comprises a hub portion on which are mounted fan rotor blades 13 each blade being mounted for angular movement. Mounted within the hub portion for rotation therewith are a fluid reservoir 18, one or more gear pumps 19 which take their suction from the reservoir and discharge to an actuator 20 of the vane type comprising two relatively angularly movable parts 21, 22; the part 21 is formed with a bevel gear 23 and the part 22 with a bevel gear 24, the two bevel gears engaging bevel pinions 26 one of which is mounted at the root portion of each rotor blade 13. Thus as the parts 21, 22 of the actuator are moved, the pitch of the rotor blades is adjusted. The hub portion also includes a control valve assembly V comprising a position control valve and a condition control valve each of which is controlled by linkage such as 44, 43, 42, 41, 45 connected through tube members to the valve assembly. The valve assembly controls flow of fluid from the gear pumps to the actuator so as to adjust the fan rotor blades for such positions as fine pitch, coarse pitch, feathering, and negative pitch for thrust reverse operation. The gear pumps are driven through gearing which includes a gear pinion formed on a tubular member which is secured to stationary structure. A flow of air enters the spinner assembly through inlet 30 and passage 31 to flow across the wall of the annular fluid reservoir 18 whereby the fluid is cooled; the air-flow is acted on by impeller blades 32 and finally discharges through outlet 33.
Patent GB-952540-A (GB)
Title: Improvements relating to vehicle steering means
IPC: F02K9/82
Filed: 1962-02-28
Abstract: 952,540. Detractive propulsive jets. UNITED AIRCRAFT CORPORATION. Feb. 28, 1962 [June 14, 1961], No. 7909/62. Heading B7G. [Also in Division G3] A vehicle steering means usable for directional control of rockets, comprises an inlet fluid passageway 44, first and second branch fluid passageways 36 and 38 communicating with the inlet 44, first and second opposed control nozzles 50 arid 52 arranged to selectively emit first and second switching fluid jets to the inlet 44, the switching jets serving respectively to direct a fluid stream from the inlet 44 to either the first or second branch passageways, and first and second exhaust nozzles 24 and 26 communicating respectively with the passageways 36 and 38 to selectively emit first and second steering jets under the control of the switching jets, the exhaust nozzles being arranged so that the steering jet from each nozzle crosses and blocks the mouth of the other nozzle so rendering the operation of the switching jets immune to atmospheric pressure change. During operation fluid flows in only one of the branch passageways, and to change the fluid's direction, say from passageway 36 to 38, a switching jet in the form of a pulse issues from nozzle 50, this creates a localized low-pressure region in the section 58 adjacent the inactive nozzle 52 so enabling fluid to flow through passageway 38 even when the pulse ceases to issue from nozzle 50. The exhaust nozzles 24 and 26 are convergent in form, and the longitudinal centre lines of these nozzles are acutely angularly related when viewed towards the mouths of the nozzles. In another embodiment, Fig. 2 (not shown), the exhaust nozzles are of the convergent-divergent type.
Patent GB-547619-A (GB)
Title: Improved bearings and methods of making the same
IPC: F16C33/14
Filed: 1941-06-24
Abstract: 547,619. Bearings. GENERAL MOTORS CORPORATION. June 24, 1941, No. 7914. Convention date, June 24, 1940. Addition to 536,414. Drawings to Specification. [Class 12 (i)] [Also in Group XXII] In a bearing having indentations as described in the parent Specification these are etched by means of the half-tone process and preferably are not more than 0.015 inch deep or 0.07 inch apart, between centres, and are between one half and twice the unetched surface in area. The centres may be spaced 0.016 inch apart and the depth 0.006 inch. The formation of the indentations and the'casting of the high-lead-base bearing-metal therein may be effected as a continuous strip process or after shaping the blank. The etching may be continued until undercut recesses are formed.
Patent GB-845181-A (GB)
Title: Improvements in or relating to sheathed elements
Inventor: FORD GEORGE WILLIAM KINVIG
IPC: B21C1/26
Filed: 1949-03-23
Abstract: 845,181. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 16, 1950 [March 23, 1949 ; Feb. 24, 1950], Nos. 7917/49 and 4774/50. Class 39(4). [Also in Group XXII] A method of sheathing a nuclear fuel body consists in subjecting a metal sheath loaded with the body to the sequential operations of evacuation, gas-filling, drawing, to entrap the gas and to secure close contact between the sheath and body, and sealing. The aluminium sheath 1, loaded with a uranium rod 2 and a closure cap 3 is drawn through a die 4 by a ram 5. Before the drawing operation the sheath is evacuated and filled with helium by a pumping head. As soon as drawing begins the helium gas is trapped in a cavity 24 in the end of the rod. The sheath may have longitudinal fins.
Patent GB-1223983-A (GB)
Title: Improvements in and relating to fluid control valves
Inventor: TODD KEITH WATSON
IPC: F16K47/04
Filed: 1969-02-13
Abstract: 1,223,983. Valves. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 29 Jan., 1970 [13 Feb., 1969], No. 7966/69. Heading F2V. A fluid control valve of the kind having two substantially concentric outlet passage openings 5, 6 for two parallel branches of fluid flow to be controlled by an annular partition 2 which defines a common boundary wall 13, is characterized by fluid guiding channels 14 spaced around the internal and external surfaces of the partition 2 adjacent the openings 5, 6. The channels 14 extend in the direction of fluid flow and are disposed so as to encourage the mixing of fluid emerging from the openings 5, 6 and so suppress resonance vibrations.