baber/WOPTO huggingface dataset:
Patent GB-1362995-A (GB)
Title: Angle modulation detector
IPC: H03D3/18
Filed: 1971-08-25
Abstract: 1362995 Modulation detectors RCA CORPORATION 25 Aug 1971 [26 Aug 1970] 39833/71 Heading H3A An angular modulation quadrature detector comprises a phase detecting multiplier 318, 320; 322, 324 having first and second inputs connected to the detector input terminals 234, 236, a phase shifter 62 connected in one of the input paths, similar first and second emitter coupled differential amplifier limiters 310-312, 332- 334 placed in the two input paths so as to mutually compensate the phase delay variation with input amplitude variation produced in each amplifier limiter. An F.M. input signal is applied directly via limiter 310, 312 to the command emitter electrodes of the multiplier transistors 318-324 forming the first input and via limiter 332, 334 and the phase shifter 62 to the commoned bases of transistors 318, 322 forming the second input, the bases of transistors 320, 324 being coupled to a reference potential. The phase of the phase shifted signal from 62 depends on the modulation deviation of the input signal from the unmodulated carrier and hence the relative conduction angles of transistors 318, 320 into the detector load 380, 382 depends on the signal modulation. The limiters may be supplied with an operating current from a single or separate constant current sources 315. The #-shift network 62 may comprise a double-tuned transformer.
Patent GB-1275457-A (GB)
Title: Method of preparing granulated stabilizer composition for addition to thermoplastic, vinyl polymers
Inventor: SCHULTZ RUDOLF
IPC: C08K9/08
Filed: 1969-08-08
Abstract: 1275457 Modified basic lead sulphate METALLGESELLSCHAFT AG 8 Aug 1969 39899/69 Heading C1A [Also in Division C3] A free flowing granular composition for addition to a thermoplastic vinyl polymer is formed when an aqueous dispersion comprising particles of a stabilizer for the vinyl polymer, that is a lead salt formed with mineral or organic acids, the lead salt being alone or with salts of other metals, and a polymeric binder which is compatible with the vinyl polymer is spray dried. "Compatible with", means that the binder can form a homogeneous phase with the polymer being manufactured and during the processing of the latter does not migrate or sweat out of the manufactured polymer. The binder may be present in the dispersed phase, and may be dissolved in an organic solvent and emulsified in water to provide the binder in the dispersed phase. The binder is preferably present in an amount of from 1-10% by wt. on a dry basis. The binder may be a vinyl polymer, e.g. a polyvinyl chloride dispersion. An exemplified stabilizer is tribasic lead sulphate which is mixed as an aqueous dispersion with an aqueous dispersion of polyvinyl chloride, the resulting dispersion being spray dried on a plate revolving at 17,000 r.p.m. using a drying gas having a temperature between 300 and 450‹C. The product is fine spherical granules of less than 0À5 mm diameter containing less than 0À5% moisture and a binder content of 3%. Details of a composition and method for producing hard P.V.C. pipes are given.
Patent GB-1073260-A (GB)
Title: Improvements in or relating to electromagnetic braking systems
IPC: F16D63/00
Filed: 1965-09-20
Abstract: 1,073,260. Electromagnetic brakes. MORAVOLEN, NARODNI PODNIK. Sept. 20, 1965 [Sept. 26, 1964], No. 40014/65. Heading F2E. [Also in Division H3] An electromagnetic brake winding 6, 7 is energized momentarily by the application of a voltage which is a multiple of the normal working voltage through a circuit which includes two thyristors 8, 10, a condenser 9, and triggering devices across the thyristors comprising resistors 13, 15 and contactors 14, 16. In operation, a machine, e.g. a loom, to be stopped quickly in the event of a fault developing, includes means responsive to starting up. of the machine for energizing contactor 16, whereupon the thyristor 10, so connected relative to the high-voltage D.C. supply 11 as to be non-conducting in the required direction when de-ionized, is ionized and conducts current to charge condenser 9. When the condenser is fully charged the thyristor 10 is automatically de-ionized and prevents further current flow. When a fault develops in the machine, the contactor 14 is arranged to be energized, which triggers the thyristor 8 in like manner, causing condenser 9 to discharge into the winding 6, 7, after which thyristor 8 is automatically de-ionized whereby the device is re-set.
Patent GB-934365-A (GB)
Title: Improvements in or relating to sealing devices
Inventor: TISCH RICHARD EARL
IPC: F16J15/32
Filed: 1960-11-22
Abstract: 934,365. Piston packing; stuffing-box substitutes. MINNESOTA RUBBER CO. Nov.22, 1960, No. 40184/60. Classes 122 (1) and 122 (5). A seal between relatively movable members, such as between a piston 17 or piston-rod and a cylinder 16, Fig. 12, or between a rotating shaft and its housing, is formed by a resilient sealing member 30 which is mounted in a groove 31 in one of the members and urges a U-shaped boot-like member 31 against the other member, the member 30 in its free form, Fig. 10, being of trapezoidal cross-section with its non-parallel sides and the larger of its parallel sides concavely shaped and when installed in the groove 31, Fig. 12, substantially filling the space between the member 31 and the groove bottom with the larger of its parallel sides engaging the latter in a substantially flat manner and the shorter one co-operating with the member 31 between the legs 32b, 32c thereof. The members 30, 31 have an annular configuration arid are respectively made of rubber and P.T.F.E. In operation, Fig. 12, the members 30, 31 slide bodily together from one side to the other of the groove without rotation of the member 30 as fluid pressure is alternately applied in opposite axial directions. Specification 767,784 is referred to.
Patent GB-911264-A (GB)
Title: Improvements in and relating to two-stroke internal combustion engines
IPC: F02B33/30
Filed: 1960-11-23
Abstract: 911,264. Two-stroke engines; valves. FICHTEL & SACHS A.G. Nov. 23, 1960 [Jan. 9, 1960], No. 40331/60. Classes 7(2) and 7(6) In an air-cooled crankcase compression engine with combustible mixture fed to the crankcase through a passage 39, Fig. 1, containing a non-return valve 36, leading to the transfer passage 22, an intermediate passage 28, Fig. 2, leading from the non-return valve to the transfer passage 22, is formed in the cylinder wall. In Figs. 1 and 2, the non-return valve 32 comprises a diaphragm 36 carried by an apertured plate and a pair of intermediate ducts 28 lead to a pair of transfer passages 22 connecting the crankcase to the cylinder inlet ports 24. In modifications the ports in the valve plate 32 are controlled by separate diaphragms.
Patent GB-1012432-A (GB)
Title: Means for protecting the supply cables of mining machines
Inventor: MACRAE RONALD LOUIS JOHN
IPC: F16G13/16
Filed: 1960-11-25
Abstract: 1,012,432. Feeding cables to movable machines; tubular chains. COAL INDUSTRY (PATENTS) Ltd. Feb. 22, 1962 [Nov. 25, 1960], No. 40613/60. Headings B8A and B8B. In an arrangement for feeding power supplies to a longwall mining machine, supply cables and/or flexible pipes are supported by a chain connected at one end to a fixed point 33, Fig. 6, and at the other to the movable machine 20 which, in use, reciprocates over a linear path twice the length of the chain with the point 33 adjacent the middle of the path. The chain runs in a channel (not shown) which provides lateral guiding for both upper and lower runs 23, 24 of the chain but which directly supports only the lower run 24, the upper run 23 sliding over the lower run. To permit this, the chain links 1 (see Fig. 4) are of U-shaped cross-section with the limbs of the U's extending horizontally and laterally of the chain run. Such links may be interconnected directly as in Fig. 10-which is a plan view in which the limbs of the U- shaped links are the plates 42 and the bases of the U-shaped links are the tongued-and-grooved portions 43 interconnected by the pins 48. They may alternatively be interconnected in the manner of Fig. 1, in which the U-shaped links 2 are joined by parallel plate links 3 and pins 4. Each end link of the chain is preferably attached to its anchorage at 33 or 20 by a swivel link which can swing through substantially 180 degrees about a horizontal axis normal to the direction of movement of the machine 20, to allow for free reversal of the direction in which the chain extends from its anchorage.
Patent GB-869730-A (GB)
Title: Improvements relating to means for mounting articles on a supporting surface
Inventor: ABERER FRANK EMIL
IPC: A47J45/02
Filed: 1958-12-17
Abstract: 869,730. Hinges and pivots. TALGE, H. J. Dec. 17, 1958, No. 40765/58. Class 65(2). An article 27, e.g. a tin-opener, is mounted below a horizontal supporting surface 15, e.g. the undersurface of a kitchen cabinet or shelf, so as to be movable into several alternative positions and locked therein. The article is secured to a "table" 23, which is fixed to a circular plate 21 having peripheral notches 22 and is pivoted by a pin 17 to a channel-shaped member or "platform" 10 secured to the supporting surface. A dog 30-33 slidable longitudinally in the member 10 has a head 30 biased into locking engagement with the notches 22 by a spring 40 anchored to the pin 17 and to a second pin 38 attached to the dog. An arm 42 is provided for moving the dog out of engagement with the notches 22 to enable the article to be rotated on the pin 17 and locked in a new position. The arm 42, which has a handle 43 at each end, passes through slots 41 in the side walls of the channel-shaped member 10 and has a slot 42a cut in one edge to embrace the pin 38. An operator pushes one handle 43 in the direction away from the pin 17, and the arm 42 pivots about the edge of the slot 41 on the opposite side of the member 10 and applies force to the pin 38 to withdraw the dog to its retracted position.
Patent GB-1395886-A (GB)
Title: Docking of ships
IPC: E02B3/24
Filed: 1971-09-01
Abstract: 1395886 Ship docks HYDROCONIC Ltd 8 Sept 1972 [1 Sept 1971] 40852/71 Heading B7S Docking apparatus for ships comprises a quay or dockside arm having an outer end for latching on to a socket on a ship and capable of longitudinal contraction or extension thus transmitting compressive and tensile loads to the ship. Preferably, the arm 11 comprising a telescopic hydraulic ram mounted on the quay to rotate on a fixed base 33 is elevated or lowered by ram 36. At the end of the arm 11 is mounted a hydraulically operated pincer assembly 21, or a rotary notched disc 26, Fig. 11, for engaging a bar 15, Fig. 7, of a socket 14 on the ships hull. Each latching station has a plurality of vertically spaced latching points on the ships hull.
Patent GB-1468780-A (GB)
Title: Vitrified clay pipe joint seal containing foamed unsaturated polyester resin
IPC: C09J167/06
Filed: 1975-10-07
Abstract: 1468780 Pipe joints FREEMAN CHEMICAL CORP 7 Oct 1975 [21 Oct 1974] 40917/75 Heading F2G [Also in Division C3] A spigot and socket joint between vitrified clay pipes 10A, 10B is formed by a factory applied casting 17A of a foamed unsaturated polyester resin within the bell end 12A of pipe 10A, and an 0-ring 23B held in a groove in a factory applied ring 19 of a urethane elastomer or unsaturated polyester resin at the spigot end 11B of the pipe 10B. The composition of the resin for the casting 17A and its method of formation including the application of a primer to the inside of the bell end 12A are given in the Specification.
Patent GB-932469-A (GB)
Title: Improvements in or relating to paper containers for prismatic articles
IPC: B65D65/22
Filed: 1959-12-02
Abstract: 932,469. Wrappers; paper and like bags. NATRON-PAPIER-INDUSTRIE A.G. Dec. 2, 1959 [Dec. 5, 1958], No. 40933/59. Classes 94(1) and 94(2). A bag or wrapper has reinforcing strips secured to it in the regions which will cover the edges of prismatic contents in the final package. A multiply bag or wrapper may have longitudinal strips 4 between two plies and may also have transverse strips (not shown) to protect corners 6<SP>1</SP>. A single ply covering may have strips externally or internally. The strips may be of paper, corrugated cardboard, plastic &c. and may be reinforced with metal &c. thread. They may be formed by spraying the wrapper or bag web. Two strips may be placed one on either side of each edge in close proximity in lieu of across the edge, Fig. 11 (not shown).
Patent GB-1357127-A (GB)
Title: Method of dry powder etching
IPC: G03F7/28
Filed: 1971-09-02
Abstract: 1357127 Photo-etching A E STALEY MFG CO 2 Sept 1971 [21 Sept 1970] 41006/71 Heading G2C [ Also in Division B6] A photo-etching process comprises (1) exposing a light-sensitive layer on an etchable layer, (2) developing the exposed layer with superficially dry etchant particles which adhere to either the exposed or unexposed areas, and (3) causing the particles to selectively etch the etchable layer. Preferably, the image of etchant particles is formed by the process of Specification 1296709, but other photographic and electro-photographic processes may be used. The etchant particles may be brought into contact with the etchable layer by applying heat or solvent. In an example, aluminized polyethylene terephthalate is coated with a light-sensitive mixture of partially hydrogenated rosin ester of glycol, benzil and 4-methylaminocoumarin, exposed, developed with NaOH/polystyrene, treated with steam to activate the NaOH and washed, so that the A1 is selectively etched; other light-sensitive coatings may also be used or Cu Cl 2  /polystyrene or Cd Cl 2  /tartaric acid particles may also be used as etchant. In other examples an Al layer on polysiloxane is etched to give a planographic printing plate, an amylose layer on paper is etched using Fe Cl 3  /copoly (vinyltoluene/ butadiene) particles, and a Cu/Al bi-metallic plate is etched using Fe (NO 3 )/copoly (vinyltoluene/butadiene) particles.
Patent GB-1437026-A (GB)
Title: Photographic material
IPC: G03C1/795
Filed: 1973-08-31
Abstract: 1437026 Photographic material for microimages EASTMAN KODAK CO 31 Aug 1973 [31 Aug 1972] 41035/73 Heading G2C  A photographic material for the production of micro-images comprises a light-transmitting support carrying a sensitive layer, e.g. a silver halide or diazo layer, said support containing an optical brightening agent and a yellow dye which together absorb radiation of wavelength from 300 to 460nm. The copying of information contained in the finished microfilm by use of the diazo copying method using e.g. a mercury lamp is thus prevented. The support is preferably of polyester.
Patent GB-940752-A (GB)
Title: Improvements in or relating to the processing of rubber
Inventor: CALLAGHAN JOSEPH JOHN
IPC: B29B13/06
Filed: 1961-11-16
Abstract: 940,752. Smoking rubber. GUTHRIE ESTATES AGENCY Ltd. Nov. 16, 1961, No. 41083/61. Heading C3E. [Also in Division F4] In an installation for smoking rubber, batches of rubber are fed on trolleys running on rails 2 into a plurntity of smokehouses 1 each having a duct 3 passing beneath the floor thereof so that hot drying air and smoke pass through the duct into the associated smokehouse via spaced openings in the floor and out via spaced openings 6 in the ceiling to a roof duct 7. Each tunnel has a smoke generator 15 and induction pipes 16 and an individual heater unit and fan which draws smoke and air from the roof duct 7, though a portion of fresh air may be introduced into the duct through dampers (not shown), or two or more smokehouses may have a common heater unit and fan.
Patent GB-1078821-A (GB)
Title: Improvements in or relating to apparatus for photographic or like printing onto a curved surface
Inventor: LEE PETER DENIS
IPC: G03B27/22
Filed: 1962-10-31
Abstract: 1,078,821. Photographic printing on curved surfaces. J. V. BAILEY, G. C. FORTIN and P.D. LEE. Jan. 21, 1964 [Oct. 31, 1962], No. 41253/62. Heading G2A. In apparatus for printing on to a curved surface, the original negative is deformed to lie against the curved surface. In the form shown, this is the surface of a cylinder 11, rigidly attached to an axial mandrel 16. Each end of the mandrel rests in a V-block 17, the blocks being adjustable vertically, and clamp bars 22 screw down over the ends of the mandrel to hold them firmly in place. The negative is formed on the upper surface of a Perspex (Trade Mark) sheet 12 about 0.06 in. thick. This is stiff enough for the sheet to lie flat when in an unstressed position Fig. 4. It rests on a frame 26 comprising side rods 30a and end portions 30 which have a concave curvature. Just beyond each end of the frame is a clamp 27, adjustable vertically, and having two horizontal projections 52, 55, between which the ends of the negative sheet are positioned. The lower projection 55 is longer than the upper, and carries an engraved line 64 for aligning with a register mark 50 on sheet 12. The V-blocks 17 and clamps 27 are supported on a heavy steel table 13. Below frame 26 is an aperture 53 in the table top, through which the negative sheet is exposed to light from a source 28. Sheets of flexible opaque material along each side of the frame prevent the passage of any light except through the negative. When, by lowering the V-blocks 17, the cylinder 11 is lowered into contact with the negative sheet, its weight causes the sheet to deform into a curved shape corresponding to the cylindrical surface and the curved shape of the frame ends 30. Clamps 27 are now lowered and clamped, so that they hold the sheet 12 in its curved shape even when cylinder 11 is removed. Holes 29 may be provided in sheet 12 so that the space between sheet and cylinder can be evacuated to provide even closer contact. After the exposure has been made, the vacuum is released and cylinder 11 raised, sheet 12 being maintained in its curved shape Fig. 2 (not shown). Clamp bars 22 are now slackened and the cylinder rotated to bring a new section of the surface above the negative. The process is then repeated, until as much of the cylinder surface as is required has been printed with the negative image, after which the cylinder is removed for processing. In order to rotate the cylinder to the required positions with a high degree of accuracy, it may carry a circular plate 39 having a series of graduation marks which are observed through a microscope, and located against a cross-line graticule.
Patent GB-1131099-A (GB)
Title: Improvements in or relating to the production of lead storage battery electrodes
IPC: H01M4/20
Filed: 1966-09-15
Abstract: 1,131,099. Lead storage battery electrodes. TUDOR A.B. 15 Sept., 1966 [28 Dec., 1965], No. 41291/66. Heading H1B. Lead storage battery electrodes are produced by filling a frame or grid of a lead alloy with an active compound comprising a mixture of finely pulverized lead, lead oxides, sulphuric acid and water and passing the electrodes between heated rolls whereby the filled frame is subjected to heat and pressure. By this treatment only the surface layer of the electrode is dried.
Patent GB-930712-A (GB)
Title: Improvements in or relating to infra-red radiation detectors
Inventor: GOODWIN DERYCK WILLIAM
IPC: G01J3/26
Filed: 1960-12-01
Abstract: 930,712. Photo-electric devices. MINISTER OF AVIATION. Nov. 30, 1961 [Dec. 1, 1960], No. 41315/60. Class 37. [Also in Groups XX and XL (b)] The invention relates to an infra-red radiation detector of the photo-resistive type, comprising a photo-sensitive element in combination with a tunable band-pass filter to reject background radiation, parts of the detector being arranged to be cooled below room temperature during operation, both the element and the filter being in contact with the cooled part. As shown, an element 1 of germanium or indium antimonide is mounted on a hollow column 2 of a glass container 3 and has secured to it one, 6, of a pair of Fabry-PÚrot plates 6, 7 which act as a band-pass filter, the other plate 7 which faces an optical window 8 of the container 3, being mounted at the end of a hollow nickel tube 9. Tuning of the filter is effected by passing current through a coil 10 encircling the container 3, thus causing the plate 7 to be moved by means of the magneto-striction action of the coil 10 on the tube 9. By tuning the filter over a band of frequencies, the. detector may be caused to act as a simple spectrometer. The column 2 may be cooled below room temperature by the use of liquid nitrogen.
Patent GB-895683-A (GB)
Title: Composition and method for deodorizing air
IPC: A61L9/01
Filed: 1959-12-07
Abstract: 895,683. Deodorizing air; compositions therefor. BORG-WARNER CORPORATION. Dec. 7, 1959 [Dec. 18, 1958], No. 41554/59. Class 81 (1). A process for deodorizing air comprises the odour-containing air in contact with a wateradsorbing activated material, e.g. silica gel alumina, silica-alumina, activated bauxite, and activated clays having a permanganate, e.g. of potassium, sodium, magnesium, calcium, barium and lithium deposited in the pores thereof. As shown, odour-filled air is drawn from rooms 11, 12 by ducts 20, 21 and inlet 22 and passes to a filter bed 23 disposed in the latter and comprising a porous container filled with looselypacked adsorbent material which has been treated with a permanganate, where the odours are absorbed by the bed and oxidized by the permanganate. A heat-exchanger assembly 10, for example located in the basement of the house and adapted to air condition the rooms comprises a heat-exchange element 13 which may be a heating or cooling element, and a blower 14, for passing air over the heat-exchange element 13 into an outlet 16 for distribution to the rooms 11, 12 by means of ducts 17, 18, respectively. Treatment of exhaust gases for internal combustion engines and deodorizing of spaces in which foods are stored may also be effected using the same compositions and methods. U.S.A. Specification 2,683,074 is referred to.
Patent GB-901806-A (GB)
Title: Improvements in or relating to a stopper incorporating dehydrating and clamping means
IPC: B65D51/26
Filed: 1959-12-08
Abstract: 901,806. Drying air in confined spaces. AIR-SEC S.A. Dec. 8, 1959 [Dec. 10, 1958], No. 41764/59. Class 34 (1). [Also in Group XVII] A capsule containing dehydrating material 5 and having resilient arms 3b is formed of synthetic plastics material and may be either associated with a cap 11 as shown or be integral therewith, Figs. 5 and 6 (not shown). A diaphragm 4 is permeable to water and steam. Various forms of arms 3b may be provided. The cap 11 may be double-skirted, the dehydrating material being held within the inner skirt and the outer skirt being either a push-fit in a container neck or internally screw-threaded.
Patent GB-1028796-A (GB)
Title: Improvements in or relating to thermoplastic quaternary copolymers
IPC: C08L33/20
Filed: 1963-10-23
Abstract: A quaternary copolymer of butadiene, acrylonitrile, dimethyl itaconate and styrene is produced by separately preparing polymerized aqueous emulsions of butadiene and acrylonitrile and of dimethyl itaconate, acrylonitrile and styrene, mixing the two aqueous copolymer dispersions so prepared and subjecting it to polymerization conditions, and separating the solid quaternary copolymer by coagulation or drying.  The copolymers may be formed using aqueous emulsions containing lauryl mercaptan, ammonium persulphate, sodium bicarbonate and metabisulphite and polyvinyl alcohol.  The polymer dispersion may be coagulated using calcium chloride or may be spray-dried.