baber/WOPTO huggingface dataset:
Patent GB-1071401-A (GB)
Title: Time-shared simulator
IPC: G06G7/06
Filed: 1964-05-14
Abstract: 1,071,401. Electric analogue calculating. HITACHI SEISAKUSHO KABUSHIKI KAISHA, and HITACHI DENSHI KABUSHIKI KAISHA. May 14, 1964 [May 15, 1963], No. 20178/64. Heading G4G. In an analogue computer having at least one unit cyclically connected to a number of inputs on a time sharing basis, it is shown that a time delay of is introduced, in the output from the unit, where # = time for computation, T = scanning period, T/n = time interval during which a holding circuit connected to each output from the common unit is correctly following the unit output within one scanning period. In order to compensate for this delay, the signal is time advanced by a corresponding amount. In one method, Fig. 6A, suitable for use when the output from a holding unit H i  is fed to an integrator circuit I; a signal equal to kT d  times the integrator input is obtained from multiplier P and is added to the integrator output after passing through a sign changer SC. Expressed in terms of a Laplace transformation, the actual input e is (p) is given by and the integrator output is The multiplier circuit P produces an output so that the resultant output e oc (p) obtained from adder A is given by The second term is therefore eliminated resulting in a greater accuracy. In a modification, Fig. 6B, the integration also functions as the sign changer by connecting the output from multiplier P to its input via a capacitor C 2 . When the output from the time-shared unit is not fed to an integrator, Fig. 7 (not shown), the value of the output may be pre-estimated a time T d  in the future from the expression where Y 0  is the value sampled immediately prior to time under consideration, Y 1  is its value one period earlier than Y 0 . The complete computer may be one in which partial differential equations are solved by transforming them into difference equations, such as a flight simulator wherein an engine computer carries out the same computation for different engines.
Patent GB-600953-A (GB)
Title: Ball bearing sorting machine
IPC: B07C5/08
Filed: 1945-08-07
Abstract: 600,953. Correspondence control. JACK & HEINTZ, Inc. Aug. 7, 1945, No. 20214. Convention date, Aug. 7, 1944. [Class 40 (i)] [Also in Group XIX] A ball sorting machine comprises gauging means having a sensitive gauging finger adapted to engage balls presented thereto, magazine feed means for feeding balls, one at a time, to the gauging finger and into a gravity discharge path, a plurality of diverting means associated with the gravity discharge path and actuated by the gauging finger for sorting balls traversing the path, characterized in that the magazine feed means includes a reciprocating plunger adapted to move each ball into contact with the gauging finger and subsequently, in the same stroke, move the ball out of contact with the gauging finger into the gravity discharge path. A tube 5, Fig. 3, is rotated by an electric motor to receive the balls through an opening 32 from a hopper 4. A base-plate 35 of the tube is connected by a pin 34 to a slide 33 which is connected to a further slide 42, whereby as the tube rotates, the lowermost ball drops through an opening 54 in the slide 33 into a chamber 50, a plunger 43 connected by a spring 44 to the slide 42 projects the ball into a chamber 67 where it is gauged between the members 65, 66 after which a stop 52 on the slide 42 engages the end of the plunger 43 to force the ball past the gauging members, so that the ball enters a downwardly inclined groove 9 leading to the several sorting passages. The upper gauging member 65 is mounted on a lever 60 rocked by a primary coil 63 under the control of an oscillator circuit in timed relationship with the feed of the balls, the displacement of the member during gauging affecting two pick-up coils 64, whose output is amplified and fed to a condenser 98, Fig. 8, the displacement being proportional to the charge on the condenser which raises the plate current of a D.C. amplifier 99 to an extent sufficient to energize a varying number of relays 101-110, set to pull in at different current values, whereby a circuit is established over one of the lines 116-125 to one of ten neon lamps 81, Fig. 2, with corresponding solenoids 12-20, so that the ball in passing along the groove 9 is deflected into the appropriate channel. The condenser 98 discharges through a resistance 97, the time taken permitting the ball to reach the appropriate channel before the corresponding relay 101-110 de-energizes. The support 56 for the lever 60 is adjustable by a screw-operated wedge 70. If the balls are not magnetic, the solenoids may operate gate or plungers to divert them. U.S.A. Specification 2,361,788 is referred to.
Patent GB-1329173-A (GB)
Title: Apparatus for producing an electrostatic charge image
IPC: G03G15/05
Filed: 1971-04-19
Abstract: 1329173 Electrophotography VARIAN ASSOCIATES 19 April 1971 [2 Feb 1970] 20221/71 Heading G2H A charge image is produced on a paper web 23 while clamped between a photo-conductive plate 15 and a porous resilient conductive layer 50 having a backing member 52 by projecting a light image on to plate 15 and applying an electric field across the web for a desired time by means of power supply 46 and timer switch 45. Layer 50 may be of vinyl or urethane foam impregnated with carbon or silver and may have a perforated backing member Fig. 2, (not shown)
Patent GB-1007081-A (GB)
Title: Solar radiation measuring device
IPC: G01J5/28
Filed: 1964-05-14
Abstract: 1,007,081. Photo-electric measurement of solar radiation. J. J. YELLOTT. May 14, 1964, No. 20227/64. Heading G1A. Apparatus for measuring the intensity of solar radiation includes a single semi-conductor detector 3 connected to a resistor 4, of about ¢ ohm, which has a negative temperature coefficient to compensate for variations in the output of the detector due to temperature changes of the detector, a meter 9 or 10 being used to give an indication of the radiation intensity. The device may be used   to measure the intensity of the total solar radiation from the stay, or can be adapted to measuse only the direct. radiation of the sun itself, by arranging the detector to be mounted (Fig. 8) together with the resistor 13 on a threaded cup member 18, which is screwed on to the base of an open tube 19, coupled to a device 23 which automatically follows the sun. The resistor, which is preferably of manganin or may be of Cu-Ni or other Cu-Mn-Ni alloys, is cemented to the cell 3, which is a silicon p-n function, so as to be in direct-thermal contact with it, but electrically insulated from it by the cement. Heat insulating members 20, 21 are provided for the cup member. Measurements are preferably made with a millivoltmeter 9, or a milliammeter 10 may be used, these instruments being calibrated directly in units of solar energy.
Patent GB-670119-A (GB)
Title: Improvements in or relating to the manufacture of styrene modified alkyd resins
IPC: C09D125/14
Filed: 1949-08-03
Abstract: Styrene is interpolymerized with an oil-modified unsaturated alkyd resin dissolved in an inert aromatic solvent.  The alkyd resin is derived from one or more polyhydric alcohols, e.g. glycerine and ethylene glycol, a major proportion of phthalic anhydride and a minor proportion of maleic anhydride and is modified by saturated or unsaturated oils or their fatty acids, e.g. chinawood, dehydrated castor, soyabean, fish, oiticica, and bodied linseed oils or mixtures of the acids of (a) soyabean and tung oils; (b) tung, oiticica and/or tall oils; (c) dehydrated castor oil; (d) linseed, tung and/or oiticica oils; (e) soya and/or dehydrated castor oils.  The resin may be further modified with rosin or phenolic resins.  In examples, alkyd resins are made by (I) to (IV) heating soyabean oil and glycerine under an inert gas with a litharge or sodium methylate catalyst to a one-in-four alcohol soluble stage, adding phthalic and maleic anhydrides together with a further portion of glycerine and, where litharge is the catalyst, phosphoric acid, then heating further until the required viscosity and acid number is attained; (V) heating tall oil (40-42 per cent rosin) with maleic anhydride, adding chinawood oil, litharge and glycerine, heating to the alcohol soluble stage, when further glycerine and phthalic anhydride is added and the heating continued; (VI) heating castor oil with sodium methylate, adding phthalic anhydride and maleic anhydride and heating further; (VII) heating soyabean oil, rosin and glycerine to the alcohol soluble stage, adding a mixture of glycerine and phthalic anhydride, maleic anhydride and ethylene glycol and heating further. Interpolymerization is effected by refluxing with styrene a solution of the alkyd resin in e.g. xylene, toluene, a high solvency naphtha in the presence of a catalyst, e.g. benzoyl or ditertiary butyl peroxide, or cumene hydroperoxide, which may be added periodically. Solutions of the products of examples (I), (II) and (VII), in solvents such as dipentene, naphtha or hydrogenated naphtha with an optional cobalt drier, may be applied to copper wire and those of examples (I) to (VI) to paper, the coatings being dried in ovens at 200-400 DEG  F., or by infra-red lamps.
Patent GB-1518497-A (GB)
Title: Silver halide-containing photochromic silicates
IPC: C03C17/02
Filed: 1977-05-13
Abstract: 1518497 Photochromic glass film AMERICAN OPTICAL CORP 13 May 1977 [4 June 1976] 20303/77 Heading C1M A photochromic silicate glass film is made by removing the solvent from a solution of a film former containing silver ions and exposing the silicate to Cl', Br<SP>1</SP> and/or I' ions before or after removal of the solvent. The film former may be tetraethyl ortho silicate, phosphorisilicates or borosilicates; the solvent may be low molecular weight alcohols and/or water; the Ag<SP>+</SP> ions may be provided by AgNO 3  or ammonia complexed silver ions; and the preferred source of halide ions is the vapour of conc. HCl, HBa or HI. The solution may contain one or more of the ions Cu<SP>+</SP>, Si<SP>+</SP>, Na<SP>+</SP>, K<SP>+</SP>, Rb<SP>+</SP>, Cs<SP>+</SP>, Tl<SP>+</SP>, Ca<SP>++</SP>, Mg<SP>++</SP>, Sr<SP>++</SP>, Ba<SP>++</SP>, Zn<SP>++</SP>, Be<SP>++</SP>, Fe<SP>++</SP>, Cd<SP>++</SP> and S" to act as sensitizers.
Patent GB-1507353-A (GB)
Title: Pressure relief valve
IPC: A61B5/0235
Filed: 1975-05-14
Abstract: 1507353 Valves WA BAUM CO Inc 14 May 1975 20412/75 Heading F2V Air is supplied to a sphygmomanometer through a flexible bladder 97 and is released by helically displacing a sleeve 74 until a seal 80 exposes the end of a tapered vent 108. The vent communicates through a groove 100 and a bore 102 with a passage 99 leading to the sphygmomanometer.
Patent GB-662827-A (GB)
Title: Improved method and apparatus for separating a membrane from a yieldable body, more particularly for sectionizing citrus fruit
IPC: A23N4/18
Filed: 1949-08-08
Abstract: 662,827. Sectionizing citrous fruit. POLK, sen., R., and POLK, jun., R., (trading as POLK DEVELOPMENT CO.). Aug. 8, 1949 [Aug. 11, 1948], No. 20606/49. Class 28 (ii) A method of separating a yieldable body from a tough membrane, e.g. the sac of a citrous fruit from the membrane wall, comprises imparting outward, circumferential impulses to the membrane, or body, or both, about an axis or axes parallel to the membrane, while simultaneously moving the axis or axes transversely along lines of separation of the body and membrane. One or more rods are inserted adjacent the core of the fruit, rotated normally or mechanically, and moved radially outwardly along the plane of the membrane. In this way damage to the fruit sacs is avoided. The rod may be of any cross-section, and should be blunt. The operation may be carried out by a number of rods 1A simultaneously. The rods 1A are rotatably journalled in arms 31 linked to arms 20 rotating about shafts 19 carried between annular plates, one of which is 16. The shafts 19 are rotated together by an endless chain on operating a handle 27 to jack-knife the arms 31, 20 and down the rods 1A along paths W to sectionize the fruit held beneath the plate 16. Springs 39 guide the rods 1A along the plane of the membrane, the rods 1A being rotated by a conventional flexible drive. U.S.A. Specifications 2,199,345 and 2,240,909 are referred to.
Patent GB-892118-A (GB)
Title: Improvements in or relating to the preparation of cellulosic products using adhesivesilicate compositions
IPC: C04B28/26
Filed: 1958-06-27
Abstract: The production of sheet cellulosic products involves adhesively bonding at least two webs of cellulosic material with an alkali metal silicate adhesive in the presence of an additive which renders the adhesive self-releasing from metal surfaces contacted by the adhesive during the process.  Sheet products made by the process are exemplified by a single faced product comprising a corrugated paper sheet bonded at the flutes on one side to a flat cellulosic liner and a double faced product comprising at least one corrugated paper sheet and flat cellulosic liners bonded to the flutes on both sides of the corrugated paper.  The bonding may be effected by a composition of the adhesive containing the additive; alternatively, the additive may be applied to metal surfaces liable to contact with the adhesive during the process. The additive may be a silicone, a lubricating oil containing the silicone, urea and a silicone, colloidal graphite and an oil-soluble silicone.  Examples of the preparations used in making single- and double-faced corrugated papers are (i) a formulation of sodium silicate (1Na2O: 3SiO2), water, and a urea-amyl ethoxy polysiloxane-wetting agent emulsion (ii) two formulations of sodium silicate (1 Na2O : 3,3SiO2) solution, clay, urea, cottonseed oil, triethanolamine and water, of viscosities 3,0-3,5 and 5,5-6,0 poise at 20 DEG C. (iii) formulations of sodium silicate (1Na2O : 3,3SiO2), water, triethanolamine, gluconic acid, clay and urea. Specifications 892,119 and 892,120 are referred to.
Patent GB-186216-A (GB)
Title: Improvements in or relating to savings boxes
IPC: A45C1/12
Filed: 1921-08-04
Abstract: 186,216. Wade, H., (Automatic Recording Safe Co.). Aug, 4,1921. Money, boxes specially designed for.-A bookform savings box comprises a body part A, Fig. 4, and a hinged cover part A<1>. The body consists of a sheet-metal blank forming the side 1 and back edge wall 1<a>, and has applied to it an angle-form brass member forming the front edge wall 2a and the end edge walls 2, these walls being, if desired, finished to resemble the gilded leaves of a book. The cover comprises a sheetmetal blank similarly equipped with a longitudinal edge flange 5a and end flanges 5. Both body and cover are covered with leather &c., padding intervening if desired; the edges of the covering are gripped between the sheet-metal blank and the brass angle-pieces. The covering is applied so as normally to tend to maintain the case open, as illustrated, but a leaf spring 13 is preferably provided also. The case is held closed by an inturned longitudinal flange 5<c> of the cover engaging under a longitudinally-arranged locking- member B. The part B has at one end an arm 17, Fig. 6, perforated to receive a key barrel 18, into which a key may be inserted through the end of the box to engage and press back a lug 17b on the arm, so moving the member B away from the wall of the casing and releasing the cover. A coin-slot 21 fitted with slot guards 21a is provided at one end of the casing.
Patent GB-1215837-A (GB)
Title: Production of low molecular weight waxy polyethylenes
IPC: C08F10/00
Filed: 1968-05-02
Abstract: 1,215,837. Low molecular weight polyethylene. BADISCHE ANILIN. & SODAFABRIK A.G. 2 May, 1968 [6 May, 1967], No. 20861/68. Heading C3P. Low molecular weight waxy polyethylene (a molecular weight up to 10,000) is prepared by-polymerizing ethylene at 200-300‹ C. and under a pressure of 1200-2500 atmospheres using a free-radical initiation, wherein the ethylene contains (a) 10-30% by volume of hydrogen or a C 2 -C 4  alkane and (b) 0À5-3% by volume of a C 3 -C 4  alkene. The alkane component (a) may be one or more of ethane, propane, butane and isobutane and (b) may be one or more of propene, butene-1, butene-2 and isobutylene. The initiator, which may be oxygen or dilauroyl peroxide, is perferably used in amounts of 0À5-2 moles per mole of ethylene. In the examples, ethylene containing hydrogen or propane, and propene or isobutylene, is continuously polymerized, the initiator being oxygen or dilauroyl peroxide.
Patent GB-1086056-A (GB)
Title: Improvements relating to core structures for gas-cooled nuclear reactors
Inventor: DERBYSHIRE EDWARD CARLOS
IPC: G21C11/08
Filed: 1963-05-24
Abstract: 1,086,056. Reactors. FAIREY ENGINEERING Ltd. May 25, 1964 [May 24, 1963], No. 20927/63. Heading G6C. A zero energy gas cooled graphite moderated reactor has a core formed in two separate parts, i.e. an annular outer drive region and an inner coaxial test region, the two regions being separated by a heat insulating region. The outer removable drive region operates at approximately 450‹ C. and the inner region at approximately 60‹ C. The barrier comprises two concentric polygonal rings of graphite tiles with a packing between them of amorphous carbon black. The inner wall contains coolant gas passages. Stainless steel sealing strips and jointing compound are used to ensure that coolant has (CO 2 ) cannot leak through either wall, and all the bolts, clamps etc. used to retain the tiles are of zirconium. The centre of the test region is adapted to receive an interchangeable void tube as described in Specification 1,086,057.
Patent GB-1197560-A (GB)
Title: Countershaft Transmission with Damper to Prevent Gear Clash
IPC: F16D23/06
Filed: 1969-04-24
Abstract: 1,197,560. Change-speed gear. GENERAL MOTORS CORP. 24 April, 1969 [2 May, 1968], No. 20934/69. Headings F2D and F2Q. In a countershaft four speed and reverse gear wherein a synchronized 1-2 clutch sleeve 61 is moved axially on an output sleeve 32 to clutch first and second ratio wheels 36, 34 thereto, and to establish reverse an idler 92 is moved left to mesh teeth 66 on the 1-2 clutch sleeve 61 and a countershaft wheel 28, and the arrangement is such that, during a rightward 2-1 downshift of the 1-2 clutch-sleeve 61, its gear teeth 66 ineffectively mesh the reverse idler 92, clashing on such mesh is avoided by a flexible non- metallic damping ring 87 on the clutch-sleeve 61 having chamfered teeth, which make the initial mesh with the chamfered teeth of the reverse idler 92. The non-metallic damping ring may be of polyurethane, polyamide, or p.t.f.e., of durometer hardness 55 to 70, and is bonded to a metal ring press-fitted on the clutch sleeve 61. The gear input shaft, not shown, passes through the output sleeve 32 and is splined to the first-motion wheel 16 which drives the countershaft cluster 18. A slide-turn selector shaft 127 has a finger 135 which selectively engages notches, e.g. 136, in the 1-2 and 3-4 shift forks 61, 37 and in a slider (112, Figs. 2 and 3, not shown) connected by a lever with the reverse idler shift fork 104. The shift-forks 61, 37 and slider (112) are secured to guided parallel shafts 118 &c., forks 61, 37 being prevented from turning by their forks, the slider (112) by a projection (116) on the fork 117 engaging a notch in the slider (112). A spring (141) inhibits reverse selection.
Patent GB-202651-A (GB)
IPC: C08G12/12
Filed: 1923-08-17
Abstract: Clear or turbid materials which are proof against water are prepared by subjecting to heat and pressure, preferably after a preliminary disintegation, the products obtainable by heating urea with formaldehyde in the presence of acids, non-alkaline salts, or organic substances of acid character such as phenols. Fillers or colouring matters may be incorporated in the products. In examples (1) urea, formaldehyde, and sulphuric acid are heated together, and the cooled product disintegrated and pressed at about 100 DEG  C.; (2) urea, formaldehyde, and resorcin are heated together and the product treated as in example (1).
Patent GB-597363-A (GB)
Title: Improvements in or relating to tubes readily deformable by hand
IPC: F16L11/16
Filed: 1945-08-17
Abstract: 597,363. Flexible pipes. METALLSCHLAUCHFABRIK AKT.-GES. Aug. 17, 1945, No. 20998. Convention date, Aug. 30, 1944. [Class 99 (ii)] A metal flexible pipe, Fig. 3, formed by a helical band with a straight or convex centre portion l<1> and interlocking bead ends 2, 3 has its beads, which overlap to form a double thickness, welded and the height of said beads is 2 mm. plus 1/50 of the clear flow diameter of the tube and the distance between said beads must be greater than the width of the beads. In a modification, Fig. 2, the bands are extended and bent radially outwards to form the cooling fins 4. The semicircular beads shown may be replaced. by beads of V- or U-shaped cross-section.
Patent GB-594116-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R1/22
Filed: 1944-08-15
Abstract: 594,116. Making sound reproducing diaphragms. STANDARD TELEPHONES & CABLES, Ltd., and POCOCK, L. C. Aug. 15, 1944, No. 21035/45. Divided out of 594,082, [Group XXXIX]. Addition to 526,212, [Group XXXIX]. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXIX] Stamping.-In a microphone comprising an electrode operated by a soundresponsive diaphragm and in contact with granules of conducting material, usually carbon, the electrode is constituted by a carbon coating on an electrode body made of nickel. The electrodes which, as shown, comprise a flat portion 1 and a domed portion 2 are punched and drawn from a sheet 10 of carbon-coated nickel, and in the use of a wide sheet, the electrode members of successive rows are preferably staggered.
Patent GB-136288-A (GB)
Title: Improvements in Cylinders for Internal Combustion Engines.
Inventor: FORBES JOSEPH WISHART
IPC: F02F1/36
Filed: 1918-12-18
Abstract: 136,288. Forbes, J. W. Dec. 18, 1918. No Patent granted (Sealing fee not paid). Cylinders, construction of.-A liner a closed at its inner end is enlarged opposite the flanges' b<3>, b" on the jacket, abuts against a stop b<6>, and has ports a<3> leading to the valve-chest.
Patent GB-1302996-A (GB)
IPC: B42F13/26
Filed: 1971-04-19
Abstract: 1302996 Loose-leaf binders R S DORFMAN and J W DORFMAN 19 April 1971 [18 Feb 1970] 21178/71 Heading B6E A ring sheet retaining mechanism 12, Fig. 3, for a loose-leaf binder 10 which is integrally moulded with the mechanism in a plastics material comprises a base 19 forming also a spine which is recessed at 20 and a pair of spaced upright members 21 having articulated or attached thereto respective longitudinal members 22 which are joined by a flexible hinge 26 along inner longitudinal edges 24 to form a toggle joint for ring members 32 supported by the members 22. Flexing of the toggle joint is facilitated by provision of a slot 28, 30 contiguous with the edges 24. In another embodiment the recesses 20 are dispensed with and replaced by levers 40B, Fig. 8, which open or close the ring members 32B. Also the base 19B is separate from the spine (19A, Fig. 6).