baber/WOPTO huggingface dataset:
Patent GB-1197526-A (GB)
Title: Austenitic Stainless Steel
IPC: C22C38/00
Filed: 1968-08-02
Abstract: 1,197,526. Stainless steel resistant to stress corrosion cracking. SUMITOMO METAL INDUSTRIES Ltd. Aug. 2, 1968 [Aug. 10, 1967], No.36901/68. Heading C7A. Austenitic stainless steel which has high creep strength and is resistant to stress corrosion cracking comprises:- As present up to 0À01% C up to 0À12% Cr 15-20% Mn 0‹1-5% Mo present up to 0À04% Ni 7-16% N up to 0À2% P present up to 0À1% and Si 0À1-2À5% the balance, apart from impurities such as 0‹005-0À006% S and 0À01-0À04% Cu, being Fe.
Patent GB-1395554-A (GB)
Title: Beam-like concrete-reinforcing component and method of  making the same
IPC: E04C5/065
Filed: 1972-08-08
Abstract: 1395554 Making expanded mesh reinforcement DRAHTWERKE FISCHER AG 8 Aug 1972 [11 Aug 1971] 36922/72 Heading B3A [Also in Division E1] An expanded metal reinforcement for concrete is produced by simultaneously cutting slots in a strip 7 and stretching the metal outwardly of each slot, using reciprocating tools 15, in cooperation with a stepped mandrel 14 of inverted V-section, so as to expand the metal strip 7 and simultaneously bend a blank portion, e.g. centrally thereof, about a longitudinal axis, the resulting form being as in Fig. 16 or Fig. 17 which illustrate respectively an edge bead 22 and a central bead or chord 3. The edge or edges of the reinforcement remote from the bead or chord may be reinforced by one or more rods 5, 23, 24 which may be either welded in place or secured by bent over portions 20 of the mesh.
Patent GB-342829-A (GB)
Title: Improvements in cartons or like containers for cigarettes
IPC: B65D85/10
Filed: 1929-12-03
Abstract: 342,829. Cigarette cartons combined with book matches. BERRINGTON, C. C., Windbourne, Heathfield Road, Wavertree, Liverpool. Dec. 3, 1929, No. 36972. [Class 18.] A carton or like container for cigarettes or the like comprises two pockets, connected together by a hinge flap 3, to which are attached book matches 4, Fig. 1. The front panels 12, 13 of the pockets are shorter than the back panels 1, 2, so that when the carton is opened the fronts of the cigarettes 11 are accessible. Slits 20 are formed in the upper corners of the pockets and the back panels are scored at 9, 10 so that the carton may be opened right back to allow both sides of the tops of the cigarettes to be gripped for removal. The carton is formed from a blank cut and scored as shown in Fig. 1, the flaps 12, 13 being folded over and secured either by gumming or stitching to the flaps 14, 15. The end flaps 16, 17 are then tucked in, the flap 16 being slotted as at 18 and the flap 17 slit as at 19 to form tongues and slots for locking the carton. Ignition surfaces for the matches may be arranged either at 21 on the flap 8 which covers the matches or on the edges 22, 23, Fig. 4, of the back panels 1, 2. According to the Provisional Specification the book matches may be detachably secured to the carton for example by tongue and slot means.
Patent GB-1474093-A (GB)
Title: Plasma spraying method and apparatus
IPC: H05H1/42
Filed: 1974-08-23
Abstract: 1474093 Automatic control of plasma spraying OUTBOARD MARINE CORP 23 Aug 1974 [17 Sept 1973] 37071/74 Heading G3R In plasma spraying apparatus, current flow between spaced electrodes is controlled in order to maintain a uniform power level. As shown, electrodes 15 of a plasma spraying gun are supplied from a terminal 221 through a pulse width modulator 51 and a reactor 16 controlled by the output of a summing amplifier 145. The amplifier input may be derived from a manual setting arrangement 47 alone if switches 231, 233 are set to manual positions 239, 245 respectively. In the other positions of these switches, the amplifier 145 is controlled in response to voltage and current sensing amplifiers 85, 99. When the apparatus is first switched on, a contact 279 connects the input of amplifier 145 to a current regulating amplifier 253 responsive to the sensed electrode current and a reference level set by a potentiometer 259. After a pre-set delay, contact 279 moves over to position 281 so that the control signal is now derived from amplifiers 79, 127 responsive to a power signal produced by a multiplier circuit 45 and a reference power level set by a potentiometer 55. Amplifier 145 also receives an integrated component of the power error signal from an amplifier 155 through a limiter circuit 187, 189. The integrated component can be removed by closure of a contact 179 which is controlled by a relay 150 responsive to an excessive error magnitude.
Patent GB-1328327-A (GB)
Title: Oscillator phase-control circuits
Inventor: BECHTIGER R
IPC: G01S7/288
Filed: 1972-08-09
Abstract: 1328327 Transistor oscillator circuits; keying circuits; pulse radar SIEMENS-ALBIS AG 9 Aug 1972 [10 Sept 1971] 37135/72 Headings H3R H3T and H4D An oscillator circuit providing phase-control of oscillations relative to a synchronizing oscillation, comprises a first amplifier stage 1 in the form of an emitter-follower whose output is connected to the imput of a second amplifier stage 2 in the form of a common-base stage, the output of which is connected to the input of the first amplifier via a frequency-selective positive feedback path 6. The output of the first amplifier stage 1 is connected to the input of the second amplifier stage 2 via a transient-free switching and amplitude-limiting stage 3 keyed by a control voltage, while the input of the second amplifier stage 2 is connected via an isolating resistor 21 to an input terminal UT for the synchronizing oscillation. In the embodiment, the switching and amplitude-limiting stage 3 comprises series-connected and reversely poled diodes 33, 35, together with a differential amplifier comprising transistors 47, 48 having the emitter-collector path of a further transistor 49 as common emitter impedance. Normally, transistor 47 is cut off and transistor 48, so that diodes 33, 35 which are biased from the collector circuits of these transistors via impedances 37, 39 which may be resistors or inductors, and terminal 34, are conductive. A positive-going pulse (US, Fig. 3, not shown) on terminal US biases transistor 47 conductive, so that transistor 48 becomes non-conductive, and the diodes 37, 39 become non-conductive, breaking the feedback path of the oscillator. The impedances 37, 39 may comprise the collector to emitter paths of a pair of transistors, provided with suitable base bias and with their emitters connected together and to the collector of transistor 47 (Fig. 2, not shown). The arrangement may be used in pulseoperated Doppler radar devices in which the phase of the echo pulses must be compared with that of the original transmitted pulse oscillations, and it is necessary for phase information regarding the transmitted signal to be stored until the time of the echo reception.
Patent GB-854418-A (GB)
Title: Improvements in or relating to flat bags, envelopes or the like
IPC: B31B150/00
Filed: 1958-11-19
Abstract: 854,418. Paper bags. WINKLER, R., and DUNNEBIER, K. Nov. 19, 1958 [Dec. 12, 1957], No. 37183/58. Class 94(2). A flat bag comprising separate tubular lengths 6 having a longitudinal seam and closed at one end by a strip of adhesive tape 8 folded lengthwise and provided with a strip 10 of adhesive tape at the other end forming a closing flap is made as shown from a paper strip 1 formed by folding and sticking devices 2, 3 into a tube 4 from which lengths 6 are cut and fed to devices for applying adhesive tape strips 8, 10 which are severed at 11. In a modification separate blanks are severed from a strip and creased lengthwise and sealed to form the tubular blank lengths 6.
Patent GB-934510-A (GB)
Title: Process for the granulation of calcium nitrate melts containing ammonium nitrate of approximately the formula 5 ca(no) nhno .10ho
IPC: C05C13/00
Filed: 1961-10-18
Abstract: <PICT:0934510/III/1> A calcium nitrate melt containing ammonium nitrate is granulated by division into drops which fall into a mineral oil containing a seed material so that the drops cool during the fall and solidify into granules, and the drops fall through a zone in the mineral oil with a seed material content of from 0,01 to 0,5% by weight and having a maximum temperature of 52 DEG C.; the seed material content is brought to or kept at the required value by addition of one or more of Ca(No3)22H2O, Ca(NO3)23H2O and Ca(NO3)24H2O. The approximate formula of the melt is 5Ca(NO3)2 NH4NO310H2O.  The proportion by weight of water is between 12 and 17%, and the proportion by weight of ammonium nitrate does not exceed 0,44 times that of water.  The solidified granules collect in the bottom of the oil shaft 5 from which they pass with oil through line 6 to a filter 11; the granules pass from here to a centrifuge 14, where adhering oil is flung off and passes to reservoir 13; oil also passes over the upper rim of shaft 5 and passes via line 8 through a cooler 9, which may also be used as a heater, to filter 11.  The oil passes from filter 11 to reservoir 13, to which seed material may be added through line 19.  The oil (with seed material) is then pumped back through line 23, where its temperature is maintained (by cooling or heating in cooler 9) above 30 DEG -40 DEG C. (according to viscosity) and below 52 DEG C., into shaft 5.  The seed material in the oil flows slowly upward in shaft 5 and comes into contact with the drops to be solidified.  Some unconsumed seed material will leave the shaft with the oil via line 8 and possibly also through line 6. A small proportion of the calcium nitrate melt will be converted into finer particles of calcium nitrate, which remain suspended in the oil and act, on recirculation as seed material.  Hence the flow of fresh seed material through line 19 can be reduced or discontinued.  The oil used may be kerosine, gas oil, spindle oil or light machine oil. If 10% or more normally soild hydrocarbon wax, e.g. macro- or micro-crystalline paraffin wax, or ceresine wax, is present in the oil, granules may be obtained having a layer of solid hydrocarbon to reduce moisture sensitivity, and delay the availability in soil. Specifications 313,652 and 794,855 are referred to.
Patent GB-364302-A (GB)
Title: Means for viewing or projecting cinematograph films
IPC: G02B27/02
Filed: 1930-12-12
Abstract: 364,302. Kinematograph apparatus. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A. and FULLERTON, D. P., Bush House, Aldwych, London. Dec. 12, 1930, No. 37529. [Class 97 (i).] In apparatus in which the film passes continuously through a viewing or projecting aperture, and is illuminated instantaneouslv each time the aperture is filled by an image, illumination is effected by a glow discharge lamp. As shown, the film 1 is drawn along a track 2 having a viewing aperture 3 by a four-picture sprocket 8. A glow discharge lamp 4 is energized either directly or through a step-up transformer 11, by a battery 5 and a commutator comprising four contact pieces 6a mounted on the shaft 7 of the sprocket 8 and engaging contacts 9a in a normally-fixed ring 9. The ring 9 is rotatable by a handle 9b for timing purposes.
Patent GB-931000-A (GB)
Title: Improvements in resins derived from epoxy compounds
IPC: C08G79/08
Filed: 1959-11-09
Abstract: A resin-forming composition comprises 0,1 to 4 parts by weight of boron trioxide and one part of a mono-epoxy compound boiling above 50 DEG C.  The monoepoxides react to form thermoplastic products, and there are specified:-phenyl, allyl, butane diol, butyl, p-tolyl, isoamyl, and 3,3,5-trialkylcyclohexyl, mono-glycidyl ethers; styrene and butylene oxides; and glycidyl acrylate and methacrylate. Polyepoxides may be added to form thermosetting products, and there are specified:-glycidyl ethers of bisphenol A, resorcinol and 1,1,1-trimethylol propane, glycidyl esters unspecified, epoxidized oils (e.g. soya bean), 3,4-epoxy-6-methylcyclohexylmethyl - 3,4 - epoxy - 6 - methylcyclohexanecarboxylate and epoxidized hydrocarbons, e.g. polybutadiene and butadiene/styrene copolymers.  Optional additives mentioned are glass fibres, asbestos, quartz and silica; phenolaldehyde, furfural, silicone, polyester, polyamide and polysulphide resins; phthalic and pyromellitic acids and anhydrides; and diethylene triamine and ethylene diamine.  In the examples B2O3 is reacted with the glycidyl ether of phenol, with and without the 3,4-epoxy compound mentioned above. Specifications 675,180, 679,536 and 912,115 are referred to.
Patent GB-354666-A (GB)
Title: Improvements in corers for grape-fruit and the like
IPC: A47J25/00
Filed: 1930-12-16
Abstract: 354,666. Coring fruit. WEBSTER, H., 51, Milton Street, and REECE, H. J., 533, Garratt Lane, Wandsworth, both in London. Dec. 16, 1930, No. 37974. [Class 28 (ii).] In a corer for grape fruit and the like, of the kind having curved blades 1, 2 pivoted together at 3 so that when open the blades form a tubular cutter for insertion into the fruit, each blade has a pair of lugs 5 which are secured to U-shaped handle frames 9 which, when together, are substantially parallel. The lugs 5 may be secured in slots in the ends of the frames, and welded in position. The blades 1, 2 are perforated to permit the juice squeezed from the core to pass into the fruit.
Patent GB-1023649-A (GB)
Title: Improvements in pressure-loaded valves
IPC: F16K1/42
Filed: 1962-10-08
Abstract: 1,023,649. Valves. DRESSER INDUSTRIES Inc. Oct. 8, 1962 [Nov. 17, 1961], No. 38025/62. Heading F2V. A valve for use with superheated steam has a conically seated main valve member 24, Figs. 1 to 7 (not shown), forming a valve head and piston which is subject in a chamber 5 surrounding an annular valve seat 20, 25, 26, to the pressure from an inlet 15 tending to open the valve. This pressure is communicated to a chamber 40 above the piston which can be vented through a pilot valve 28 to allow the main valve to open. The construction aims to ensure tight sealing in closed position despite irregularities in thermal expansion of the seating owing, e.g. to the inlet 15 being branched into diametrically opposite inlet passages 19a, 19b. To this end the valve member is recessed at 34 just above the conical closure surface and inwardly of the maximum diameter of this surface so as to leave a relatively thin flexible lip F on the valve head. The construction is such that at the high temperature (allowing for temperature gradients in the parts) the included angle of the conical surface on the head and lips assumes a value slightly greater than the included angle of the seat. Consequently on closure the lip first makes line contact with the seat and is deformed to ensure tight sealing. The seat is formed on a shallow annular projection 20, Fig. 7, grooved on its end for the reception of a chrome steel ring 25 in which is set an annulus 26 of hard wear-resistant metal carrying the conical sealing surface.
Patent GB-901286-A (GB)
Title: Improvements relating to dispensers for liquids
Inventor: MCGEORGE WALTER
IPC: B65D47/20
Filed: 1959-11-11
Abstract: 901,286. Container closures. BEECHAM GROUP Ltd. Nov. 11, 1960 [Nov. 11, 1959], No. 38308/59. Class 125(3). A bottle stopper comprises a barrel 1 secured on the bottle neck and containing an open sac 5 urged towards its seat by resilient lugs 7 and held tightly on the seat by a cap 8 pressing on the lugs. To dispense liquid from the bottle, the cap 8 is removed whereby on tilting, liquid flows into the sac and the weight thereof overcomes the force of the lugs 7 and moves the sac away from its seat 3 to permit the liquid to flow out around the sac. Ribs 6 in the barrel centralise the sac. The barrel 1 may be screwed or snap-fitted on  to the neck 2 and the lugs 7 may be replaceable by lugs of different resiliency.
Patent GB-1034507-A (GB)
Title: Improved system for controlling machinery
IPC: B63H21/22
Filed: 1963-09-30
Abstract: 1,034,507. Regulating. T. HINDMARCH. Sept. 15, 1964 [Sept. 30, 1963], No. 38330/63. Heading FIB. [Also in Division B7] A marine propulsion system comprises an engine, a change direction gear, a mechanism for controlling the change direction gear and the power output of the engine (as shown, cams 30, 29 respectively operating bell cranks 33, 34 leading to the gear and to the engine control), and manually operated lever movable from a position giving idling condition of the engine and neutral condition of the gear in either of two directions corresponding to ahead and astern. The cams 30, 29 are so designed that initial movement from the neutral position shown moves only the crank 33 to engage the gear in the appropriate sense, and on further movement the cam 29 acts to increase the engine power. The manually operated lever moves a rod 2 connected to a rod 7 through a spring biased lost motion connection 6 which allows movement of the rod 7 to lag behind movement of the rod 2. A peg 60 extends from the rod 7 and movement of the rod from one side of the neutral position to the other is prevented by a plunger 8 in the path of the peg. The plunger 8 is operated by a cam 11 through a spring 9 and connected to a dashpot 15 having a spring acting to release the latch, the arrangement being such that the displacement of the dashpot and therefore the time during which the rod 7 is held in the neutral position depends on the position of the cam 11 prior to the movement to the neutral position, and hence to the engine power before such movement. On release of the plunger 8 the movement of the rod is controlled by a variable rate dashpot 40, which has non-return valves 50, 51 to allow a more rapid return to the neutral position and is transmitted through a servomotor 20, 25 and rack and pinion 27, 28 to the cams 11, 29, 30. The cams 29, 30 may be operated directly by a wheel 35, axial movement of which brings it into driving engagement with the cam 29 and disconnects a dog clutch 56.
Patent GB-879192-A (GB)
Title: Improvements relating to the reconditioning of closures for steel barrels and drums
IPC: B65D39/08
Filed: 1959-11-12
Abstract: 879,192. Container closures. AMERICAN FLANGE & MANUFACTURING CO. Inc. Nov. 12, 1959 [Nov. 12, 1958], No. 38484/59. Class 125(3). [Also in Group XXII] A closure for a steel drum comprises a reconditioning collar 15, 16 seated on a closure flange 1 having a beaded-over portion 8 and a cylindrical screw-threaded neck 2, the flange 1 being fitted to a neck 6 formed round an aperture in the drum wall 5, gaskets 9 and 11 being provided to prevent escape of liquid from the drum and a screw plug 20 fitted with a further gasket 22 closing the aperture in the neck 2. The collar 15, 16 is of light weight sheet steel and is crimped to the neck 6 by a sealing tool, Figs. 5 and 6 (not shown), (see Group XXII). In modifications, Figs. 8 and 9 (not shown) the collar 15, 16 has an annular recess into which a gasket similar to that shown at 11 may be applied in a fluid state while the collar is spun. Specifications 391,050 and 392,830 are referred to.
Patent GB-969257-A (GB)
Title: Improvements in or relating to epoxy resin compositions
Inventor: PEERMAN DWIGHT ELLSWORTH
IPC: C08G59/50
Filed: 1962-10-11
Abstract: A heat-curable composition comprises a poly-epoxide derived from epichlorohydrin and bis(p-hydroxyphenyl) sulphone and a guanamine of the formula <FORM:0969257/C3/1> <FORM:0969257/C3/2> <FORM:0969257/C3/3> or <FORM:0969257/C3/4> where R1 is a phenyl, benzyl or aliphatic hydrocarbon radical containing up to 21 carbon atoms, R2 is an aliphatic hydrocarbon radical containing from 4 to 22 carbon atoms and R3 is a divalent hydrocarbon radical derived from a dimerised unsaturated fatty acid. Fillers e.g. glass fibres, clays, asbestos and metallic powders may be present in the compositions which may be partially reacted to a <\>gB-stage<\>a resin. In the examples, an epoxy resin derived from epichlorohydrin and bis(p-hydroxyphenyl) sulphone is cured with (1), (3), (4) and (6) a guanamine derived from coconut oil acid fractions; (2) benzoguanamine and (5) stearoguanamine. Specification 969,256 is referred to.
Patent GB-877880-A (GB)
Title: Curable halogenated alpha olefin polymers
IPC: C08K5/00
Filed: 1959-11-16
Abstract: Elastomeric vulcanizates of an amorphous alpha-olefin homo-polymer, as hereinafter defined, are made by halogenating the homopolymer, at a temperature of from 40 DEG -200 DEG C. with a halogenating agent in an aromatic diluent, to form an elastomer halogenated polymer having a halogen content of from 0,5-40 wt. per cent, isolating the polymer, and reacting it with a curing agent at elevated temperature to form the vulcanizate.  The homo-polymer is defined as the polymer of an olefin containing at least three carbon atoms, a crystallinity of less than 25%, a softening point below 50 DEG C., a tensile strength of from 50-1,500 p.s.i., an apparent modulus of elasticity at 0 DEG C. of from 10,000-100,000 p.s.i., and an intrinsic viscosity in tetralin at 125 DEG C. at a concentration of 1 gram per litre of 0,4-3,5. Alpha-olefins mentioned are propylene, butene-1, pentene-1, hexene-1, heptene-1, or 3-methyl-1-butene.  Specified halogenating agents are chlorine, bromine, dichloro-dimethylhydantoin, or N-bromo-succinimide.  The aromatic diluent may be benzene, chlorobenzene, or o-dichlorobenzene.  The halogenated polymers are isolated from the reaction mixture by adding an alcohol or a ketone to the mixture, or by steam stripping the mixture.  Curing agents mentioned are the oxides, sulphides, nitrates, phosphates, sulphates, or organic acid salts of zinc, cadmium, magnesium, iron, or lead, dicumyl peroxide, copper, iron, amines, polyamines, dimethylylol formaldehyde resins, halogenated dimethylol phenol resins, sulphur, dithiocarbamates, thiuram sulphides, dithiomorpholines, quinone dioxime, red lead, and dinitrosobenzene.  Prior to curing, fillers such as carbon black, silica, and mica may be added to the halogenated polymer, together with conventional antioxidants and softeners, such as oils derived from coal tar, pine tar, and/or petroleum.  The cured halogenated polymers may be used for making hoses, gaskets, tyres, and boots.
Patent GB-922057-A (GB)
Title: Improvements in or relating to fluid-pressure servomotor control systems
Inventor: BALTUS GEORGE THOMAS
IPC: F15B9/16
Filed: 1959-05-15
Abstract: 922,057. Fluid-pressure servomotor control systems. BELL AEROSPACE CORPORATION. May 15, 1959, No. 38776/62. Divided out of 916,973. Class 135. An hydraulic servomechanism comprises, within a housing 10, a pilot flapper valve 90 which controls a spring-loaded piston relay valve 17 which in turn controls an actuator 67. The flapper is formed by a leaf spring blade 90 extending from a stem 46 and is located between two nozzles 34, 35, the back pressures of which act on opposite ends of the piston relay 17. The stem 46 may be actuated mechanically or by an electrical input signal to one of two coils 58, 59. The rod 68 of the piston actuator is connected by a spring 92 and a rod 91 to the blade 90 to provide feedback.
Patent GB-909346-A (GB)
Title: Improvements in or relating to apparatus for measuring the root mean square value ofan electrical signal
IPC: G01R19/02
Filed: 1960-11-11
Abstract: 909,346. Voltage measurement. WAYNE KERR LABORATORIES Ltd., GOURIET, G. G., and GOOD, J. R. Aug. 17, 1961 [Nov. 11, 1960], No. 38846/60. Class 37. The R.M.S. value of a random signal voltage is measured (Fig. 1) by application to a half-wave rectifier 10 in series with a resistance 11 of value R 1 , and a capacitance 12 of value C across which is connected a D.C. measuring instrument 15 in series with resistance 14 of value R 2 . It is shown mathematically that the instrument indicates R.M.S. values if the resistances are selectively proportioned for R 1 /R 2  = 0.116. The rectifier may be full-wave, when R 1 /R 2  = 0.232 for accurate measurement.