baber/WOPTO huggingface dataset:
Patent GB-1469572-A (GB)
Title: Surge voltage arresters
IPC: H01T4/12
Filed: 1974-09-02
Abstract: 1469572 Spark gaps SIEMENS AG 2 Sept 1974 [28 June 1974] 38227/74 Heading H1D A surge arrester comprising an inert-gas-filled insulating tube 3, e.g. glass or ceramic, with electrodes 1, 2 sealed 5 to the ends, carries on its inner wall a coating 4 of conductor or semiconductor over one or more regions to reduce breakdown voltage by field asymmetry; each region, either infilled or outlined only, has a circumferential width at least half its axial length. Each region may be isolated or connected to one of the electrodes; the shape may be, e.g. circular, oval or polygonal or "punctiform", and preferably of width of the same order as the diameter of the active areas of the electrodes. The coating may be a graphite suspension applied with powdered solder-glass, or may be formed by rubbing with, e.g. a pencil. In each case radio-active doping may be included, e.g. Pm. If the tube is of glass it may be pre-etched for adhesion. The electrodes may be glass sealed 5 or (Fig. 2, not shown) by metallizing, the external corners of the tube being relieved to allow insertion in a metal housing. Connection of each coated area to an electrode can then be facilitated by the metallizing.
Patent GB-1140328-A (GB)
Title: Improvements in or relating to ventilation bratticing made of flexible material
IPC: E21F1/14
Filed: 1967-08-18
Abstract: 1,140,328. Ventilating mines. UNIVERSAL RUBBER & PLASTIC INDUSTRIES (PROPRIETARY) Ltd. 18 Aug., 1967 [18 Aug., 1966; 20 Dec., 1966], No. 38245/67. Heading F4V. A ventilation brattice for a mine comprises a sheet of flexible material secured by adhesive to the roof of a mine gallery. In one form a strip 14 is stuck to the roof 10 and the sheet 13 is then stuck to the vertical leg of the strip 14, a wire 19 may be provided to assist in supporting the weight of the sheet. In another construction the strip 14 may be integral with the sheet; or, if the wire 19 is not provided the top of the sheet may be turned over at 90 degrees and stuck directly on to the roof. In further constructions an inverted L- shaped strip may be first stuck to the roof and the sheet is stuck to the strip or to the roof and to the strip.
Patent GB-804192-A (GB)
Title: Mascara applicator
IPC: A45D34/04
Filed: 1956-12-17
Abstract: 804,192. Mascara applicators. NORLAND, E. Dec.17, 1956, No. 38357/56. Class 81 (2). A mascara applicator comprises a pair of forceps, the limb tips of which have means for carrying mascara and are curved to conform with the periphery of eyelid when the tips are closed about the eyelashes. Nylon forceps 1 which are closed by finger pressure have limbs 2 of strip form, the tips 3 of which carry curved plates 4 of mascara. Alternatively the forceps 6 may have limbs 7 which when closed form a stem of constant cross-section. The tips of the forceps 6 are curved and have curved ribbed opposed faces 12 which when closed define channels for accommodating the eyelashes. The stem passes through an aperture in a rubber or polythene stopper of a container for mascara. When the forceps are drawn from the container the outer surface of the stem is cleaned by the bounding surface of the aperture, the ribbed surfaces 12 retaining mascara for application. The forceps may be opened against a closing spring and mascara may be carried on the tips of the forceps by absorbent inlays or adherent coatings of fluffy nylon fabric.
Patent GB-1194069-A (GB)
Title: Bearing Alloys of Tin Based White Metal
IPC: F16C33/12
Filed: 1968-08-12
Abstract: 1,194,069. Tin alloys. DAIDO METAL CO. Ltd. Aug. 12, 1968 [Feb.9, 1968], No.38477/68. Heading C7A. A bearing alloy consists, by weight, of:- Sn 78-91À894% Sb 5-13% Cu 3-9% Cd 0À1-1À5% Cr 0À005-0À2% Be 0À001-0À1% The alloy may be cast on to a steel backing.
Patent GB-1489956-A (GB)
Title: Fission fragment excited laser system
IPC: H01S3/04
Filed: 1975-09-19
Abstract: 1489956 Lasers UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 19 Sept 1975 [4 Oct 1974] 38486/75 Heading H1C Fission fragments from a neutron-irradiated fissionable material produce lasing action in a molecular gas by preferentially exciting its vibrational levels, the gas being cooled to a temperature of between 60 K. and 150 K. As shown in Fig. 1, high intensity neutrons from a fast pulse nuclear reactor 40 are thermalized in a moderator 42, the thermalized neutrons irradiating a layer or coating of fissionable material 46 which may be UO 2  or U 3 O 8  enriched with U235. This material may be a foil or sheet or a deposited coating, and is mounted on a sleeve substrate 48 formed of a substance transparent to thermal neutrons, e.g. alumina, copper or quartz, positioned within a stainless steel, brass or aluminium housing 12. The neutron moderator 42 comprises a tubular polyethylene structure having coolant passages 44 for maintaining a uniform housing temperature. The lasing gas consists of CO optionally mixed with He, Ar or N, or a mixture of N 2  and CO 2 , and is circulated from a source 39 through a lasing cavity 19 within the housing by a vacuum pump 28. The gas is confined within the cavity by a windowed output wall 16 inclined at the Brewster angle, the housing being extended by a windowed cap 24 to facilitate uniform cooling. The assembly is immersed in liquid nitrogen 36 in a Dewer flask 38. A resonator is formed by mirrors 20, 22. In a modification producing an annular output beam 76, Fig. 3, the lasing gas is circulated in a closed path comprising a filter and circulating apparatus 78, a plenum 56, channels including constriction and expansion nozzles 58, a lasing cavity 52 and an expansion tank 55. The channels are formed by a plurality of spaced annular discs 64, 66 each made of neutron moderating material such as graphite and bearing respective foil pairs 60, 62 of fissionable material. It is a requirement of operation of the embodiments that the mass areal density of the lasing gas be about 5 Î 10<SP>-3</SP> grams/square centimetre to effect fission fragment stopping, and its relaxation time be between 50 and 1000 microseconds to provide effective molecular collision excitation of the vibrational levels.
Patent GB-920323-A (GB)
Title: Windscreen wiper blades
IPC: B60S1/38
Filed: 1961-10-27
Abstract: 920,323. Windscreen wiper blades. GENERAL MOTORS CORPORATION. Oct. 27, 1961 [Nov. 25, 1960; Jan. 16, 1961 (2); Aug. 7, 1961], No. 38524/61. Class 138 (1). A windscreen wiper blade 10 made only of elastomeric material has portions 17, 18, 19, 25 of different stiffness so shaped that it has greater flexibility in its longitudinal plane of symmetry than at right angles thereto.
Patent GB-892172-A (GB)
Title: Improvements in and relating to scanning lever measuring appliances
IPC: B25D5/02
Filed: 1959-11-13
Abstract: 892,172. Linear-dimension gauges; indicating-apparatus. DECKEL, F. W. Nov. 13, 1959 [Dec. 23, 1958], No. 38530/59. Classes 106 (2) and 106 (4). [Also in Group XXII] A measuring device with a holder 10 adapted to be inserted in the spindle 12 of a machine tool supports a scanning lever 22 rotating with the spindle 12 and a dial gauge 30 kept stationary for ease of reading, the casing of the dial gauge including magnets 36 and being surrounded by magnets 40 mounted in a fixed part 38. The dial gauge 30 is mounted on a bearing 16b and is actuated by a lever system 22, 24, 26. Adjustment of zero is effected by use of a screw 16a which bears against a spring plate 32 carrying the pivots 28 of the lever 26. The dial gauge is surrounded by a hollow transparent cylinder made of a magnetically neutral material. Surrounding this is a carrier 38 in which are inserted several permanent magnets 40 of alternating polarity, this carrier being held in position by an adjustable arm 42a connected to a fixed part of the machine tool. In other embodiments, the permanent magnets 40 may be replaced by electromagnets.
Patent GB-1386521-A (GB)
Title: Liquid level monitoring devices
IPC: G01F23/40
Filed: 1972-08-18
Abstract: 1386521 Monitoring liquid levels BESTEL DEAN Ltd 14 Sept 1973 [18 Aug 1972] 38543/72 Heading G1N Changes in the level of a liquid 122, Fig. 3, are sensed by a float 120 attached to atape 112 driving a wheel 26 which is coupled by gears 30, 46, Fig. 2 to a disc 50 carrying a plurality of bar magnets 70 past a reed switch 78, Fig. 1, which therefore emits a number of pulses indicative of the change in liquid level. The disc 50 is attached through a slipping clutch arrangement to an arm 84 carrying the switch 78, and an arm 86 carrying an encapsulated magnet 90 which co-operates with a fixed reed switch 92. When the disc 50 rotates in the direction B, the magnet 90 approaches reed switch 92 and switches it on to enable the measuring pulses to be counted in a positive sense. The magnet 90 rests on switch 92 whilst disc 50 continues to rotate in the direction B. When the liquid level changes in the opposite sense, the disc 50 rotates in direction A. Magnet 90 is removed from switch 92 which changes over to enable the pulses to be counted in a negative sense. As disc 50 rotates, magnet 90 and switch 78 are stationary with switch 78 resting on an adjustable rod 96. (For Figures see next page)
Patent GB-346803-A (GB)
Title: Improved methods of and means for applying end sealing or closure pieces to the tubular bodies of cartons or receptacles such as used for containing milk
IPC: B31B17/00
Filed: 1929-12-17
Abstract: 346,803. Closing milk cartons &c. CHATWIN, Ltd., T. and WILSON, C. J., Victoria Works, Gt. Tindal Street, Birming- ham. Dec. 17, 1929, No. 38592. [Classes 18 and 66.] The botton of a waxed milk &c. carton i secured in plac after the carton is filled by con fining the carton body in a holde and applying hea to the bottoming tool which cause the wax on the body and botton to melt and dishes the bottom so that the molten wax accumulates in a region where on cooling, i forms an annular or ring-like sea for the inside o: the bottom joint. As shown the bottom-applying devices are embodied in a carton-filling machine where the cartons are supported in conical sleeves b in a rotary carrier a and carried from the filling position to the heated reciprocating tool g which inserts, flanges and dishes a bottom disc and then to the reciprocating and rotary tool h which rolls over the edges of the body and bottom flange; at the next position of the carrier the filled and closed carton is removed and an empty carton inserted in its place. The mouth of each sleeve b carries a slidable ring f having an internal shoulder on which the bottom disc is placed and when the tool g is forced down it moves the ring and disc down until the latter encounters the edge of the sleeve when further movement of the tool forces the disc into the mouth of the carton and forms it with a flange fitting inside the carton mouth. As the disc is inserted in the carton body air is trapped between the contents and the underside of the disc which is dished by the concave underside of the tool g; by reason of the concave inner surface of the bottom the wax melted by the tool g runs to the inside where the edge of the bottom abuts the carton body and there accumulates to form the annular sealed joint. The tool h may cause the wax to melt on the outside of the joint and form an external seal.
Patent GB-1093834-A (GB)
Title: A poultry battery cage system
Inventor: SHEPPARD ARTHUR GEORGE
IPC: A01K1/015
Filed: 1965-09-09
Abstract: The droppings from poultry battery cages fall on to layers of sulphate pulp paper located beneath the tiers of the battery, the paper being made water repellant during manufacture by mixing a wax preparation and a wet strength agent with the pulp.
Patent GB-1218509-A (GB)
Title: Process for the production of acetoacetic acid esters
Inventor: ECK HERBERT
IPC: C08G63/91
Filed: 1969-02-03
Abstract: 1,218,509. Acetoacetic acid esters of polyether and polyester polyols. WACKER-CHEMIE G.m.b.H. 1 Aug., 1969 [3 Feb., 1969], No. 38625/69. Divided out of 1,177,591. Addition to 1,177,591. Heading C3R. [Also in Division C2] Acetoacetic acid esters of polyether and polyester polyols are preparedby reacting the polymer with diketene in the presence of a catalyst comprising an alkali metal salt of an acid having a pK below 3. Example 8 uses a linear polyester having a molecular weight of 2080 and containing two free hydroxyl groups per molecule prepared by esterifying adipic acid with ethylene glycol and ricinoleyl alcohol in a molar ratio of 1 to 6. Example 9 uses a branched polyether having a molecular weight of about 4000 and containing an average of 4 free hydroxyl groups per molecule prepared by reacting 1,1,1-trishydroxymethyl ethane and ethylene oxide or propylene oxide. The catalyst in each case is sodium chloroacetate.
Patent GB-808996-A (GB)
Title: Improvements in or relating to change-speed gearing for sewing machines
IPC: D05B27/14
Filed: 1956-12-19
Abstract: 808,996. Sewing machines. PFAFF A. G., G. M. Dec. 19, 1956 [Dec. 22, 1955], No. 38645/56. Class 112 [Also in Group XXIV] The speed of rotation of the feed wheel 43 of a sewing machine, and hence the length of the stitch, is adjusted by varying the ratio of a change-speed gear combination A between the feed wheel and an input shaft 52. The change-speed gear combination (see Group XXIV) comprises a four ratio constant-mesh change-speed gear in series with an arrangement of pick-off gears giving another four ratios, thus enabling a total of sixteen different ratios to be obtained. The arrangement of the pick-off gears is altered to change the ratio by removing a cover 112 when the machine is not working. The ratio of the constant-mesh change-speed gear is controlled by operation of a lever 140 mounted upon the main column 2 of the sewing machine. The casing of the gear combination A is pivoted upon the machine base 1 and can be adjustably positioned by means of a screw 107 to vary the position of the feed wheel 43.
Patent GB-846448-A (GB)
Title: Improvements in or relating to tantalum electrodes for semiconductor devices
IPC: C23C14/24
Filed: 1958-12-02
Abstract: A tantalum electrode for a semiconductor element is coated with gold, silver, indium or tin before being soldered to the element, to improve the wettability of the tantalum.  The solder may consist of pure In or pure Al, or 97% Ag, 2% Pb, 1% Sb, or 60% Sn, 39% Pb, 1% Sb, or 89% Al, 11% Si, or 99% Au, 1% Sb, or 94% Ag, 5% Pb, 1% As, or 49% In, 45% Au, 5% Ge, 1% Al or 90% Pb, 10% Sb or 99% Pb, 1% As.
Patent GB-806333-A (GB)
Title: Improvements relating to railway track packing machines
IPC: E01B27/16
Filed: 1956-12-21
Abstract: 806,333. Railway track packing machines. PLASSER, F., and THEURER, J. Dec. 21, 1956 [Dec. 23, 1955], No. 39021/56. Class 104 (2). In a track packing machine having packing tools arranged in pairs on a vertical adjustable tool carrier and to which tools an oscillatory movement is imparted, the tools in each pair are moved towards and away from each other and the maximum width of the opening between the tools is determined by stops and is adjustable so that a plurality of different maximum widths are attainable, each such width being suitable for use when the machine is consolidating the ballast beneath sleepers having a predetermined width. In the arrangement shown in Fig. 1, tools 3 articulated to cylinders 8 slidable over pistons 6 mounted on a shaft 7 fixed to a vertically adjustable toolcarrier 2 are oscillated by an eccentric shaft 5 and are moved towards each other by passing a pressure medium, such as oil under pressure, through a pipe 11 into chambers 8<SP>11</SP> and away from each other by passing pressure medium, such as compressed air, into a chamber 81 through ducts 11<SP>1</SP>. The outward limit of movement of the cylinder 8 required to enable the tool 3 to be spaced sufficiently apart to pack double sleepers 40 is determined by stops 12 at the outer ends of each of the shafts 7. Stops 13 are moved into position over the shaft 7 between the ends of the cylinders 8 and the stops 12 to limit the spacing of the tools 3 so that a single sleeper 39 can be packed. A relief valve 24 containing a spring-loaded ball 25 is arranged in the pipe 11 and determines the pressure at which the packing tools 3 are brought together. When the machine operates on single sleepers 39 the stops 13 are held in the operative position I, Fig. 2, over the shaft 7 by a spring 20, an operating handle 34 of a three-way cock being in a position I in which compressed air or other suitable fluid pressure medium flows through a pipe 38 and the duct 35 in a control member 33 to a discharge pipe 37. When the machine operates on double sleepers 40 the operating lever 34 is rotated to position II to allow fluid under pressure to move a piston 19 against the spring 20 in order to move the stop 13 to the inoperative position and to move a piston 26 in the relief valve 24 downwards on to a stop 32 so as to exert a greater pressure on the ball 25 through the spring 27 so that the pressure in the pipe 11, through which the fluid under pressure passes to move the cylinders 8 towards one another, will reach a greater value before the ball 25 is lifted to allow fluid to pass through a discharge pipe 29. The pressure at which single sleepers are packed may be predetermined by an adjustable screw 28 operating on the piston 26. Adjustable stops are provided at the inner ends of the shaft 7 to limit the inward movement of the cylinders 8.
Patent GB-364825-A (GB)
Title: Improvements in parachutes
IPC: B64D17/00
Filed: 1930-12-29
Abstract: 364,825. Parachutes. TRICAU, G., 72, Rue Jullien, Vanves, Seine, France. Dec. 29, 1930, No. 39074. Convention date, Dec. 27, 1929. [Class 4.] Parachutes h a v i n g slits in their supporting- surface formed along the seams of the panels have one lip of each slit formed to deflect the air over the surface of the parachute towards the centre and where the cover is made from triangular segments, the segments are stitched straight thread to straight thread and bias to bias, the slits being formed in all of the straight thread seams and in some or all of the bias seams and the deflecting lips being oppositely directed in pairs. The cover is, however, preferably made up with rectangular panels b as shown with peripheral pieces c to complete the circular outline and the lips of the slits in the seams direct the airflow towards the centre of the parachute.
Patent GB-921732-A (GB)
Title: Safety harness device
IPC: B60R22/38
Filed: 1960-11-16
Abstract: 921,732. Safety harness. PACIFIC SCIENTIFIC CO. Nov. 16, 1960 [Nov. 23, 1959], No. 39407/60. Class 141. An inertia-operated safety harness device as described in Specification 874,324 is provided with means for preventing re-locking during the period while the lock dog 72 is being returned from its lock position in engagenent with the ratchet wheel 30 to its normal free position. The means for preventing re-locking consists of a second sear 60 between the sear 49 and the thrust plate 37, the sear 60 having an extension arm and cam 60<SP>1</SP>. As the control shaft 63 is rotated to release the device from the looked position, the pin 69 mounted on the shaft rides over the cam 60<SP>1</SP> and prevents axial movement of the sear 60, thus restraining axial movement of the thrust plate 37 due to any tendency for relative rotation between the flywheel 31 and shaft 18.
Patent GB-795230-A (GB)
Title: Improvements in or relating to two-stage filters for filtering liquids
IPC: B01D27/00
Filed: 1956-12-31
Abstract: 795,230. Filters. FILTERWERK MANN & HUMMEL GES. Dec. 31, 1956 [Dec. 30, 1955], No. 39588/56. Class 46. Unfiltered liquid entering at 4, Fig. 1, filters through a multiplate edge-filter element 9 and passes out therefrom through a disc 11 into an annular space 8 surrounding an annular star-shaped paper cartridge 20 through which it passes to the outlet 5. When the cover 2 of the filter is removed the edge filter 9, cleaning device 15 and disc 11 (connected to the cover 2 by distance pieces 10) are removed with it as a unit. A crank 14 is provided on the tie bar 13 of the edge-filter to rotate the plates against the cleaning device 15. When the cover is replaced the disc 11 becomes located in the upper end of a partitioning-tube 7. The paper cartridge 20 is sealed against a ring 22 either by a screwed ring 23 and sealing ring 24 (left-hand-side) or by a spring 25 and sealing ring 26 (right-hand-side of Fig. 1). In Fig. 2 an edge-filter 39 together with its enclosing tube 37 are secured to a cover 32 in which inlet 34 and outlet 35 are provided. Initially-filtered liquid passes from the edge-filter 39 by a passage 53 provided in the cover 32 to an annular space 38 and then through a star-shaped paper cartridge 45 to the outlet. The cartridge 45 is sealed from the space inside a second cover 33 (which is in communication with the inlet 34) either by a threaded ring 50 contacting the inside of the cover and having a sealing ring 51 in contact with the end disc 48 of the cartridge, or by a spring 54 bearing directly on the disc 48, which in this case has sealing rings 55 and 56.
Patent GB-1211810-A (GB)
Title: Method and device for sealing heat-exchanger tubes
IPC: F16L41/00
Filed: 1968-08-19
Abstract: 1,211,810. Tube expanders; jointing by forging. CARRIER CORP. 19 Aug., 1968 [11 Dec., 1967], No. 39608/68. Headings B3H and B3J. [Also in Division F2] A method of sealing a defective heat exchanger tube 17 comprises inserting an expansible body 3 into the tube end to be sealed the body having a tapered opening therein 5 with a member 7, larger than the narrower end disposed in the larger end, of the opening, connecting pressure means 15 to the expansible body in communication with the larger end of the opening 5, displacing the member 7 along the opening by exerting pressure thereon to expand the body into sealing engagement with the tube and wedge the member 7 into sealing engagement with the walls of the tapered opening releasing pressure exerted on the interior wall of the opening and the member, and disconnecting the pressure means from the expansible body. The plug 1 can be formed by machining a cylindrical blank 2 to have a constant internal diameter, an external taper, and a threaded opening 13, and then forcing the plug through a die 9 to provide a tapered internal opening 5 and an exterior of substantially constant diameter, the ball 7 being introduced into the opening 5 before the blank enters the die 9. In an alternative method a body (3<SP>1</SP>), Fig. 3, (not shown), with a ball (7) in the larger end of a bore (7) includes a threaded insert (11<SP>1</SP>) which retains the ball (7). In use an hydraulic line 15 is screwed into the threaded opening 13.
Patent GB-1403086-A (GB)
Title: Treatment of whey protein
IPC: A23C9/144
Filed: 1972-08-25
Abstract: 1403086 Whey protein COCA-COLA CO 25 Aug 1972 [1 Sept 1971] 39712/72 Heading C3H At least a portion of the casein and milk fat is removed from whey from bovine milk, then the whey is pasteurized at below its thermal denaturization point, cooled and filtered through diatomaceous earth, ultrafiltered with water injection, then contacted with a strongly acidic cation exchange resin to give a whey protein concentrate at pH <3À8. The whey is preferably heated to 37‹ C. after passage through the diatomaceous earth but before ultrafiltration, which is performed at 100-300 p.s.i., then covered to 5‹ C. for ion exchange. The product may be dried. A physiologically acceptable acid may be added to the concentrate, to lower the pH to 2À7. The preferred concentrate has a mineral salt concentration of 0À2-0À5% w/w, a total microbial count of <10<SP>8</SP>/ml and a viable microbial count of 10-10<SP>2</SP>/ml.