baber/WOPTO huggingface dataset:
Patent GB-989352-A (GB)
Title: Electrical stand-by circuits in which an auxiliary discharge tube is fired in the event of failure of a main discharge tube
Inventor: MUGGERIDGE REGINALD
IPC: H05B41/46
Filed: 1961-11-29
Abstract: 989,352. Discharge tube switching circuits. ROTAX Ltd. Nov. 6, 1962 [Nov. 29, 1961], No.42627/61. Heading H3P. In a circuit comprising a triggerable discharge tube 6, a further tube 7 is connected in parallel as shown, resistors 8, 9 arranging that when a pulse is received from source 5, tube 7 only becomes conductive in the event of failure of tube 6.
Patent GB-975053-A (GB)
Title: Improvements in or relating to pliers-type tools for handling split retaining rings
IPC: B25B7/12
Filed: 1963-10-30
Abstract: 975,053. Pliers. WALDES KOHINOOR Inc. Oct. 30, 1963 [Nov. 1, 1962], No. 42815/63. Heading B4W. A tool for fitting and extracting circlips comprises first and second elongated levers 10, 11 terminating in working points 12, 13 and pivoted together at their opposite ends, ratchet- and-pawl means mounted on the lever 13 adjacent its tip, a third lever arm 17 being pivotally mounted at 16 on the second lever 11 for angular movement towards and away from the first lever arm 10 whereby a succession of movements of the arm 17 effects actuation of the pawl-and-ratchet means and thereby a step-by-step actuation of the working points in a direction parallel to each other. A ratchetwheel 20 and a peripherally grooved wheel which turns with the ratchet-wheel, are mounted on the cross-shaft 16. Also fast with the crossshaft 16 is a rocker arm 18 which turns with the lever 17. A cable 39 has one end fastened to the lever 10 and the other end secured to a point on the periphery of the grooved wheel, so that the cable winds on to the wheel and becomes progressively shortened as the levers 10, 11 are drawn towards one another. A spring 19 urges the working points towards one another. A pawl 21 is pivoted to the rocker arm 18 by a pin 22, a pawl 23 being pivoted to the lever 11 by a pin 24 which extends through an arcuate slot in the arm 18. The pawls are biased to turn in unison as by springs 31a, 32a, the direction of bias exerted by the springs being controlled in accordance with one of two positions of a manual control button 33. The pawls 21, 23 are alternately engageable with the ratchet-wheel 20 in accordance with the direction of motion of the handle ends of the levers 10, 17 with respect to one another. In a modification for spreading external circlips, Fig. 10 (not shown), a rack bar is substituted for the cable 39 and an idler pinion is mounted adjacent the cross-shaft 16 in place of the grooved wheel. A driving pinion, which meshes with the idler pinion, transmits the step-by-step motion to the rack bar.
Patent GB-1515027-A (GB)
Title: Eye drop dispenser
IPC: A61H35/02
Filed: 1975-10-20
Abstract: 1515027 Eve drop dispenser SILVER INDUSTRIES INC 20 Oct 1975 [18 Oct 1974] 43037/75 Heading A5R [Also in Division B8] An eye drop dispenser comprises a cup 22 having a free end 26 adapted to contact and retain eyelids apart with its opposite end being a friction fit over a flange 36 extending from a nozzle 14 of a container 12 for the eye drop liquid, the cup being closed by a cap 24 which engages over the nozzle when the dispenser is not in use. In a modification the cap has a recess which fits over a screw top provided to close the container and may have drain holes 38.
Patent GB-1012925-A (GB)
Title: Improvements in or relating to candlesticks
Inventor: MAKOWER PENELOPE ANN
IPC: F21V37/00
Filed: 1963-10-31
Abstract: 1,012.925. Candle-. sticks. P. A.MAKOWER Oct. 29, 1964 [Oct. 31, 1963], No. 43097/63. Heading F4T. A candlestick comprises a candle holder 11 disposed in a tubular base 10 and a glass shield 14 resting on the upturned edge of the base 12 of the candle holder. The bottom of the base 10 may be perforated or it may be imperforate and filled with water and contain a flower.
Patent GB-1256047-A (GB)
Title: Process for activating surfaces of plastic materials
IPC: C23C18/30
Filed: 1970-09-09
Abstract: 1,256,047. Electroless plating of plastics. SCHERING-A G. Sept. 9, 1970 [Sept. 25, 1969],  No. 43156/70. Heading C7F. A plastics e.g. a.b.s. or modified polypropylene, surface is activated with a solution containing 20 to 40% (by weight) H 2 SO 4 , 15 to 30% chromic acid and 0À001 to 1% of a noble metal, e.g. Pd, Pt, Au or Ag as a sulphate, nitrate or acetate. The surface may be subsequently reduced with formaldehyde, alkali metal hypophosphites or boranates or hydrazine hydrate. The surface may be subsequently Cu or Ni plated in the following baths (g./l.) (1) 10 CuSO 4 , SH 2 O, 16 potassiumsodium tartrate, 16 sodium hydroxide, 8 paraformaldehyde, and 0À005 rhodanine, (2) 30 nickel sulphate, 10 sodium hypophosphite, and 50 citric acid.
Patent GB-1409419-A (GB)
Title: Electrolytic process for rendering inocuous a polluting substance
IPC: C02F1/467
Filed: 1972-09-18
Abstract: 1409419 Electrolytically rendering a polluting substance innocuous DART INDUSTRIES Inc 18 Sept 1972 43207/72 Heading C7B A polluting substance (such as CN<SP>-</SP>, CRO 3,  NO 2 <SP>-</SP> or amine) contained in an aqueous solution is rendered innocuous in an electrolytic cell having between an anode and a cathode an aggregate of discrete packing elements at least some of which are non-metallic electrically conductive elements (e.g. of carbon). In the process, the polluting substance is reacted either with a compound which is dissolved in the solution or with electrolytic reaction products of the compound. Innocuous reaction products are evolved at one electrode. Any noxious reaction products evolved at the counter electrode are prevented (e.g. by a permeable wall) from entering the main body of the electrolyte. Gas is generated in the main body of the electrolyte and effects cleaning of the surfaces of the electrically conductive elements. Specified polluting substances together with dissolved compounds (indicated in brackets) which are used for reaction therewith are CN<SP>-</SP>(NaCl); CrO 3  (FeSO 4 ); NaNO 2  (NaCl); and amine, such as methylethyl-, or isopropyl-hydroxylamine, (alkali metal chloride) As shown, metal strip 10 passes through a treatment tank A (e.g. a cyanide, chromic acid or nitrous salt conditioning bath), wash tank B and water rinsing tank C. Polluted water from the wash tank B passes to electrolytic cell D, is purified, passes to a settling tank E and is pumped back to the wash tank B. The electrolytic cell contains working electrodes 26 (e.g. of graphite), counter electrodes 25 (e.g. of graphite) isolated by porous walls 27, non-metallic conductive elements 30 (e.g. of carbon), and non-conductive elements 31 (e.g. of resin, ceramic or glass). The porous walls may be permselective or neutral, e.g. of sulphonated styrene, ceramic, plastics or cellulose acetate.
Patent GB-1318384-A (GB)
Title: Containers formed by a blow moulding process from a thermoplastics  synthetic material in combination with plateform members arranged  therein and process and apparatus for manufacture thereof
IPC: B65D90/52
Filed: 1970-09-10
Abstract: 1318384 Blow-moulding partitioned containers ELBATAINER KUNSTSTOFF-UND VERPACKUNGS-GmbH & CO 10 Sept 1970 [16 Sept 1969] 43338/70 Heading B5A [Also in Division B8] A blow-moulded, thermoplastics container includes internal partitions or anti-surge panels therein. It is formed e.g. using the apparatus of Fig. 6 from a tube 39 extruded from head 35 of extruder 33 by blow-moulding in mould 36. A core 37 is movable through head 35 and comprising an inner mandrel 38a movable telescopically within an outer mandrel 37a, each mandrel carrying one of two internal walls 25. As tube 39 is extruded, its lower end passes photo-cell 53 actuating downward movement of mandrel 38a with lower of walls 25. When the desired spacing between walls 25 is reached, setting ring 55 engages mandrel 37a, pushing it downwardly with the upper of walls 25. When walls 25 are in their correct position, member 47 engages switch 45 actuating first-stage mould closure. Carrier end pieces 40 are then urged forwardly by electromagnets to engage the tube 39 and walls 25 which are then welded together. Mandrels 37a, 38a are then withdrawn, member 47 engaging switch 46 to actuate complete mould closure. Blowing air is supplied by needle 56 at the side of the mould. To switch off the machine if end pieces 40 do not satisfactorily engage the walls 25, each end piece 40 may be driven hydraulically uncovering an exhaust port (61, Fig. 8, not shown) if they move too far without engagement, or alternatively, each end piece may close a switch mechanism (63-65, Fig. 9, not shown) arranged in series so that any one incorrect location of end piece 40 opens the electrical circuit. The walls (27, Fig. 10, not shown) may be inserted from below by mandrel (66) using vacuum heads (67) to keep the lower end of tube 39 open. End pieces 40 may be replaced by internal ridges to engage the walls. Walls (30, Fig. 11, not shown) may be introduced by a mandrel (37-38) from above as in Fig. 6 but which also supplies blowing air through holes (73) and may have a screw-threaded neck portion (71). The profiles (68a) engaging walls (30) may be vacuum-formed. The mandrel inserting the walls may be retained to serve as a strut in the container, being welded to the container walls.
Patent GB-903262-A (GB)
Title: Improvements relating to driver's brake valves for compressed fluid braking apparatus
IPC: B60T15/04
Filed: 1959-12-23
Abstract: 903,262. Fluid-pressure brakes. WESTING- HOUSE BREMSEN-G.m.b.H. Dec. 23, 1959 [Dec. 23, 1958], No. 43669/59. Class 103 (1). A driver's brake valve device in a compressed fluid braking apparatus, comprises a relay valve portion 2 maintaining brake pipe pressure at a value corresponding to a control pressure derived from a main reservoir by a self-lapping pilot valve portion 1, the lapping force being that of the brake pipe pressure (in chamber 51) acting in opposition to a spring 20, and a loading device 18 which augments the force of spring 20 to a degree proportional to the pressure of fluid applied to the loading device 18, to enable the brake pipe pressure to be increased temporarily above the normal valve for rapid brake release. The stem 3 of driver's lever 9 controls, through cams 7, 8 an equalizing valve 10 and a high pressure charging valve 11 respectively, and carries a closure member 4 for co-operation with a tube 16 carried by a diaphragm 15. The brakes are applied by raising member 4 from tube 16 to vent control chamber 39 via chamber 50, tube 16 and chamber 21, brake pipe pressure in chamber 44 raising diaphragm 29 and tube 31 to connect atmospheric chamber 46 to brake pipe 42 via valve 31, 35. To release the brakes, valve 11 is opened to connect the main reservoir to chamber 19 via passages &c. 37, 36, 38, 6, 14, 13 and 23 and to valve 48 via passage 47 to open a large communication between pipe 37 and chamber 36. Pressure in chamber 19 raises piston 18 and tube 16 to move member 4 from stem 3 to admit main reservoir pressure from chamber 6 to chamber 39 via chambers &c. 6, 5, 50. 40, the diaphragm 39 moving tube 30 to connect brake pipe 42 to chamber 36. Meanwhile, pressure is built up in a timing reservoir 25 through choke 26; when lever 9 is returned to a running position to close valve 11, the fluid in reservoir 25 and chamber 19 gradually vent to atmospheric chamber 21 via port 28, piston 18 retracts downwards to gradually vent chamber 39 via passages &c. 40, 50, 16, 21 and slowly restore the brake pipe to the normal fully-charged value when chamber 19 is fully vented; the gradual restoration to normal brake pipe pressure prevents brake application. The spring 20 can be adjusted by a screw 22 acting on partition 27. Should the control reservoirs in a train have a higher reference pressure than the locomotive can supply, then valve 10 is opened to supply fluid to reservoir 25 via choke 24 and then via choke 26 to slowly raise the pressure in chamber 19 and in brake pipe 42. When the brake pipe pressure reaches a value such that the locomotive brake pipe pressure equalizes with the higher pressure in the control reservoirs, the valve 10 is closed and chamber 19 is vented and pipe 42 returns to its normal pressure.
Patent GB-1234823-A (GB)
Title: Electrical mass meter
IPC: G01G3/16
Filed: 1968-09-13
Abstract: 1,234,823. 823. Weighing electrically. WIRTH, GALLO & CO. Sept.13, 1968 [Jan. 26, 1968], No.43681/68. Heading G1N. In weighing apparatus of the type comprising two pre-tensioned measuring strings 4 and 5 electrically excited to perform transverse vibrations at their natural resonance frequencies, one string 4 being loaded by the mass q to be measured and the other string 5 being loaded by a biasing mass p, and an evaluating instrument for calculating and indicating the mass of q from the difference in the vibration frequencies of the strings 4 and 5, the string 5 is attached to the weighing platform and its resonance frequency is arranged to be higher than that of the string 4, whereby to eliminate the effects of vertical vibrations of the apparatus. In an alternative arrangement, Fig. 2 (not shown), a spring (18) and damper (19) and levers may be incorporated in the linkage between the string (4) and the weighing table. Guides (8) prevent leteral oscillations of the biasing mass (p).
Patent GB-1010245-A (GB)
Title: Stabilization of anhydrides
IPC: C07D303/04
Filed: 1963-11-06
Abstract: The stable liquid blends resulting from the heating of at least one polycarboxylic acid anhydride, which anhydride forms a clear liquid at a temperature below 100 DEG C., with from 1-15 parts by weight of 1-methyl-1,2-epoxy-4-epoxyisopropyl-cyclohexane per 100 parts of anhydride to a temperature of 100-135 DEG  C. for at least 15 minutes (see Division C2) may be used as curing agents for epoxy resins such as an epoxidized polybutadiene.  In Example 1, a mixture of 60 parts of hexahydrophthalic anhydride and 40 parts of chlorendic anhydride is heated with 10 parts of limonene dioxide; 80 parts of the resultant blend are mixed with 100 parts of an epoxidized polybutadiene resin containing 9.0% oxirane oxygen and having a viscosity of 2,000 poises and the resultant mixture is cured by heating.ALSO:A process for the stabilization of at least one polycarboxylic acid anhydride which forms a clear liquid at a temperature below 100 DEG  C. comprises heating at least one such anhydride with from 1-15 parts by weight of 1-methyl-1,2-epoxy - 4 - epoxyisopropyl - cyclohexane per 100 parts of anhydride to a temperature of 100-135 DEG  C. for at least 15 minutes.  The anhydride may be a single anhydride or may be a blend of two or more anhydrides, several suitable anhydrides and anhydride blends being specified. The 1-methyl-1,2-epoxy-4-epoxyisopropylcyclohexane may be prepared by epoxidizing 1 - methyl - 4 - isopropenyl - 1- cyclohexene. Examples are given.
Patent GB-1451046-A (GB)
Title: Lock mechanism anti-drilling means
IPC: E05B15/16
Filed: 1972-09-23
Abstract: 1451046 Preventing drilling of locks C PEAKE 17 Dec 1973 [23 Sept 1972] 44095/72 Heading E2A Anti-drilling means for a lock 5, comprises at least one member 1 adapted to be rigidly secured in position of use and providing one or more inclined surfaces for effecting deflection of the leading end or point of a drill 6 when driven against the member. As shown, the member has a conical surface 2 and is located in a recess 3 behind a front plate 4 of a safe door. In an alternative form the member is of undulating form and provides a number of inclined or conical surfaces.
Patent GB-1488886-A (GB)
Title: Polymer composition
IPC: C08L27/00
Filed: 1974-10-11
Abstract: 1488886 Stabilizing RAYCHEM CORP 11 Oct 1974 [11 Oct 1973 (2)] 44270/74 Heading C3P Irradiated cross-linked polymers susceptible to oxidation are stabilized with a minor proportion by weight of an organic phosphite of formula R<SP>1</SP>OP(OR) 2  where R<SP>1</SP> is an optionally substituted aliphatic or aromatic group and R is hydrogen, an optionally substituted aliphatic or aromatic group or the two R's together form a ring, provided that when one of R<SP>1</SP> and R is an aromatic or substituted aromatic group the compositions also comprise a hydroxy aromatic compound containing a sulphur atom. The polymers may be polymers or copolymers of ethylene and/or propylene, polyvinyl chloride, polyvinylidene chloride or fluoride, chlorinated polyethylene or an acrylic, polyether or polyester resin, and may be in the form of shaped articles, particularly heat recoverable articles. Examples describe compositions of polyethylene, optionally mixed with ethylene/vinyl acetate copolymer or with ethylene/ethyl acrylate copolymer and EPDM rubber, chlorinated polyethylene or ethylene/vinyl acetate copolymer; polymeric phosphites derived from phenol and hydrogenated Bisphenol A, di C 14  alkyl pentaerythritol diphosphite, distearyl pentaerythritol diphosphite, tripentaerythritol tetraphosphite or diisodecyl pentaerythritol diphosphite ; and optionally a sulphur containing aromatic hydroxy compound, e.g. 4,41-thiobis(6 - t.butyl - m - cresol), 4,4<SP>1</SP>-thiobis(6-t. butyl-o-cresol), a sulphur-containing hindered phenol cyanurate, 1,1<SP>1</SP>-thiobis(2-naphthol) or bis[(3,5-t.butyl-4-hydroxyphenyl)propionyl 2- oxyethyl]sulphide.
Patent GB-1505088-A (GB)
Title: Pulse width modulation amplifier circuits
IPC: H03F3/20
Filed: 1975-10-28
Abstract: 1505088 Pulse width modulation amplifier SONY CORP 28 Oct 1975 [2 Nov 1974] 44411/75 Heading H3W In a pulse width modulated amplifier, modulator 13 receiving a sawtooth A from oscillator 14, the p.w.m. signal output, C, thereof being amplified at 15 and passing to load 19 via low pass filter 16, whose output is also fed back via feedback circuit {resistor} 17 to be subtracted from the audio input, a time constant circuit 12 receiving the difference between the audio input and the feedback signal serves to further reduce any residual component at carrier frequency in the signal fed to the pulse width modulator.
Patent GB-1462590-A (GB)
Title: Process for the production of polyisocyanates of isocyanurate structure
IPC: C08G18/02
Filed: 1975-10-30
Abstract: 1462590 Isocyanurates BAYER AG 30 Oct 1975 [6 Nov 1974] 44904/75 Heading C2C Organic polyisocyanates of isocyanurate structure are obtained by trimerizing organic polyisocyanates in the presence of trimerization catalysts comprising at least one Mannich base and at least one carbamic acid ester formed from an isocyanate and a secondary alcohol, and terminating the reaction by thermally deactivating the catalyst at 90 to 150C. when the free NCO-content of the reaction mixture is from 50 to 90 mol per cent of that of the initial reaction mixture. The carbamic ester may be formed in situ from the organic polyisocyanate and an alcohol. Mannich bases of the formula are obtained by reacting dimethylamine and formaldehyde with phenol and p-isononyl phenol respectively.
Patent GB-1286875-A (GB)
Title: Improvements in or relating to filters
IPC: B01D29/41
Filed: 1969-09-11
Abstract: 1286875 Liquid filter CHEMAP AG 11 Sept 1969 [11 Sept 1968] 44984/69 Heading BID The inner edge of annular filter cloth 9 of a disc filter is held between sealing rings 12. The disc also comprises annular filter disc 5 made of coarse supporting cloth and perforated sheet 6. Filtered liquid passes via ports 3 to a central drain pipe. The disc filter may be vertical or horizontal, may be rotary and may be abraded by solid particles passing over the filter cloths under the influence of centrifugal force.
Patent GB-1133060-A (GB)
Title: Process for the stabilisation of chlorinated hydrocarbons
IPC: C07C17/42
Filed: 1967-10-03
Abstract: 1,133,060. Process for stabilization of chlorinated hydrocarbons. SOLVAY & CIE. 3 Oct., 1967 [28 Oct., 1966], No. 45019/67. Heading C2C. [Also in Division C5] Chlorinated hydrocarbons are stabilized by adding one or more N-heterocyclic organic compounds, comprising diaziridine and/or one or more of its alkyl derivatives, which may be 1,2-diethyldiaziridine, to the chlorinated hydrocarbon(s) in a preferable amount of 0À025 to 0À5 gram/litre of chlorinated hydrocarbon(s). Chlorinated hydrocarbon may be trichloroethylene and tetrachloroethylene.
Patent GB-1276915-A (GB)
Title: Improvements in or relating to cooling arrangements for valves
Inventor: KENNEDY MATTHEW CAMPBELL
IPC: H01J19/36
Filed: 1969-09-12
Abstract: 1276915 Travelling-wave tubes ENGLISH ELECTRIC VALVE CO Ltd 6 July 1970 [12 Sept 1969] 45047/69 Heading H1D A detachable cooling arrangement for the collector 1 of a travelling-wave tube, adjustable to permit aligning of the tube within its focusing mount, is formed by a copper or brass block 7, which may be finned, which is attached to the focusing mount for the tube, and which is apertured at 8 to receive the collector. The collector is gripped by spaced collet jaws 2, shaped to mate with the collector surface, and urged against the latter by springs 5 secured to collet shoes 3 which are a sliding fit within grooves 6 formed in the block 7, and which engage flat mating surfaces on the collet jaws to permit sliding contact therewith. The positions of the collet shoes within the grooves 6 are adjustable, by means not disclosed, to permit adjustment of the tube with respect to its focusing mount.
Patent GB-1123818-A (GB)
Title: Corrugated resilient mount
IPC: F16F1/373
Filed: 1966-10-10
Abstract: 1,123,818. Resilient mountings. CLEVITE CORP. 10 Oct., 1966 [11 Oct., 1965], No. 45101/66. Heading F2S. A supported member 12, e.g. a motor, is resiliently connected to a support 10 by means of a tubular body 16 composed of a resilient elastomeric material, e.g. rubber, and having a radial flange 18 at its upper end and between its ends, an annular ribbed portion 24, comprising a circular array of axially-extending ribs 25 which are preferably rounded at their peripheral edges. On assembly, the tubular shank portion of the body 16 is passed through an aperture 14 of corresponding diameter in the supported member 12 and a spacer 22, which terminates short of a lower skirt portion 20 of the body 16, is inserted into the body 16. A bolt 28 is passed through an aligned aperture in the support 10 and a nut 34 is tightened against a washer 30 to expand the skirt 20 so that the supporting member 10 is pressed down upon the flange 18 and the supported member is clamped between the flange 18 and the expanded skirt 20. In a modification, Fig. 6, not shown, the spacer (22) has a radial flange (36). In a further modification, Fig. 10, not shown, the assembly has no spacer 22, compression of the skirt portion of the tubular body being limited by a tubular bolt (36).
Patent GB-1474212-A (GB)
Title: Method of processing material in a furnace
IPC: F23G5/28
Filed: 1974-09-03
Abstract: 1474212 Distributing furnace charges; drying apparatus; incinerators NICHOLS ENG & RESEARCH CORP 3 Sept 1974 [18 July 1974] 45320/76 Divided out of 1474211 Headings F4B and F4G Material being processed on a hearth having a central shaft carrying at least one radial rabble arm is evenly distributed over the surface of the hearth by urging the material radially inwardly or outwardly over the hearth, while moving the material circumferentially round the hearth with a flow component independent of the radial flow component. The material is moved by rabbles combined with scraper chains, or scraper bars, or independently adjusted blades on different rabble arms as described in parent Specification 1,464,211. The material may be linestone or sulphide ores which are calcined, or sewage sludge which is dried or dried and incinerated on a series of superposed hearths. In a superposed hearth furnace, the even distribution arrangement may be used on only one or two hearths, on which the distribution is critical.