baber/WOPTO huggingface dataset:
Patent GB-1287796-A (GB)
Title: Producing 6-acylaminopenicillanic acids
IPC: C07D499/12
Filed: 1969-11-04
Abstract: 1287796 6 - Salicylideneaminopenicillanic acid-salicylaldehyde adduct SANKYO CO Ltd 4 Nov 1969 [6 Nov 1968] 54056/69 Heading C2A Novel 6 - salicylideneaminopenicillanic acidsalicylaldehyde adduct is prepared by treating a 6-aminopenicillanic acid-containing fermentation broth at a pH between 6 and 9 with at least two moles of salicylaldehyde per mole of 6- aminopenicillanic acid. The adduct is isolated, or separated as a solution in a water-immiscible organic solvent for subsequent reaction with an acylating agent to produce a 6-acylaminopenicillanic acid. The fermentation broth may be a hydrolysed broth of a natural penicillin, e.g. penicillin G, and the reaction with salicylaldehyde may be carried out at 0-30 C. After the reaction the pH is brought to about 2 to 4 and a suitable water-immiscible solvent is added to extract the adduct. The organic phase may be washed, dried and evaporated to give the isolated adduct or may be treated with an acylating agent, e.g. an acid halide, active ester or anhydride or the acid itself in the presence of a condensing agent, to give the corresponding 6-acylaminopenicillanic acid. The freed salicylaldehyde may be recovered for further use.
Patent GB-1077030-A (GB)
Title: Process for making vinyl aryl polymers
Inventor: JAHN ALEX KARL
IPC: C08F12/04
Filed: 1965-12-21
Abstract: Vinyl aryl polymer beads are prepared by polymerizing one or more vinyl aryl monomers while suspended in water containing zinc oxide as the suspending agent, the polymerization being initiated while the aqueous phase of the suspension is at a pH of at least 9.3 and the pH being maintained above 7.0 throughout the polymerization.  The vinyl aryl monomer may be styrene, vinyl toluene, vinyl xylene, or -ethylvinylbenzene, divinylbenzene, isopropyl styrene, tert.-butyl styrene, o- or p-monochlorostyrene, a dichlorostyrene or a mixture of one or more thereof with not more than 50% by weight of ethyl acrylate, methyl methacrylate, acrylonitrile, vinyl propionate, or acrylic or methacrylic acids.  The pH may be maintained basic by means of tri- or di-sodium phosphate, sodium oleate, or ammonium or sodium hydroxides.  The monomer suspension may contain a flameproofing agent, e.g. 1,2-dibromo-tetrachloro-ethane, monochloro-pentabromo-cyclohexane or tris(2,3-dibromo-propyl) phosphate.  Benzoyl and dicumyl peroxides may be used as catalyst. Foamed polymer beads may be prepared by incorporating a volatile fluid organic compound, e.g. n-pentane or petroleum ether, with the monomer suspension and then heating the polymer beads in steam or in a closed mould.
Patent GB-1379560-A (GB)
Title: Impact device
IPC: B25D17/24
Filed: 1971-11-23
Abstract: 1379560 Percussion devices F W ROSS 23 Nov 1971 [4 Dec 1970] 54296/71 Heading B4C An impact device comprises a cylinder 10, a piston 42 slidable within the cylinder and having a shaft 44 extending through an end wall of the cylinder, a rotary motor 14, and a tool holder 52 or anvil 95 (Fig. 7). The motor is connected to one of the piston and cylinder by means of an eccentric or crank and a convecting rod, so that rotary motion of the motor shaft is converted into reciprocation of the piston or cylinder. The cylinder space does not communicate with the atmosphere or only communicates therewith via apertures arranged at the mid-length of the cylinder. Reciprocation of the one of the piston and cylinder results in the other impacting the tool holder or anvil. The motor may be an electric motor, an hydraulic motor or an I.C. engine. As illustrated, the cylinder is connected to the motor, and in an embodiment not illustrated a counterweight is reciprocated by the motor to oppose the reciprocations of the cylinder. The device of Fig. 7 may be provided with the spring arrangement of Fig. 8 between and connected to the motor and cylinder to oppose the motion of the cylinder.
Patent GB-1490718-A (GB)
Title: Process for the separation of solid particles from a dispersion thereof in a liquid
IPC: C02F1/24
Filed: 1974-12-17
Abstract: 1490718 Purifying water SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 17 Dec 1974 [19 Dec 1973] 54420/74 Heading ClC Water containing dispersed matter is purified by expansion therein of water containing a gas (e.g. air) under pressure wherein the separation is carried out in a tall vertical floatation zone the dispersion moving from the top downward in countercurrent to the gas released on expansion, solid material being separated in the upper part of the zone and clarified water discharged in the lower part.
Patent GB-545015-A (GB)
Abstract: 545,015. Oxidized fatty oils; varnishes. DU PONT DE NEMOURS & CO., E. I. Nov. 1. 1940, No. 15974. Convention date, Nov. 25, 1939. [Classes 91 and 95]. Drying oils or semi-drying oils are sufficiently blown or oxidized so as to give a clear reaction product when the oxidized oils are reacted with phosphoric acid. The products are used as coating compositions for metal surfaces. In the case of linseed oil the desired degree of oxidation is reached when the oil has a viscosity of Z+1Gardner-Holdt bubble viscosity standard, a colour of 3+ Gardner-Holdt, an acid number of 4.05, an O 2  content of 16 per cent., a saponification value of 241, and an I 2  number of 149 Hanus. Other oils which may be used comprise fish oil and soya bean oil. Linseed oil at a temperature of 220-250‹F. is blown by bubbling a stream of air through the oil for 18-36 hours. The phosphoric acid is then added to the blown oil, preferably at room temperature, and the mixture agitated “ to 16 per cent. of the acid is specified, 1 to 3 per cent. being preferred, based on the blown oil. The product may be diluted with solvents, such as aliphatic hydrocarbons, preferably containing a small proportion of an aromatic hydrocarbon, such as xylol or hi-flash coal-tar naphtha. The blown oil may be in combination with a resin or china wood oil as in a varnish composition. Examples of suitable varnish compositions comprise (1) Ester gum or indene rosin, blown linseed oil, mineral spirits, xylol. (2) Rosin, calcium hydrate, china wood oil, or mineral spirits, this composition being used with about half its weight of blown linseed oil. In further examples, a linseed oil modified glycerine phthalate resin, blown linseed oil or soya bean oil, mineral spirits and xylol mixture is reacted with phosphoric acid. Other ingredients of the coating compositions may include pigments, such as carbon black or prussian blue, iron resinate or lineleate, phenyla - naphthylamine or creosol. Specification 3119/69, [Class 95], is referred to.
Patent GB-1177646-A (GB)
Title: Tufting Mechanism, Method, Stitches and Article.
IPC: D05C15/14
Filed: 1966-12-08
Abstract: 1,177,646. Tufting machines; tufted fabrics. SINGER CO. 8 Dec., 1966 [14 June, 1966], No. 54910/66. Headings D1G and D1K. A tufting machine comprises a first looper for seizing a yarn loop thrown by an eyed needle, a second looper for taking the loop from the first looper and for holding the loop for penetration by the needle during the next stroke for forming a chain stitch, and a finger so shiftable that the needle passes alternately on opposite sides of the finger to lay a yarn loop thereover. Backing fabric 173 is fed between an upwardly-inclined support plate 27 and a transversely-movable upwardly-inclined presser plate 36 provided with yarn-supporting wire fingers 37 each formed with a hump 99 near its free end. A needle 32, during the ascent following a first penetration of fabric 173 to the left of a finger 37, throws a first loop 73 which is seized by the beak 57 of a looper 34 oscillating in a vertical plane. A horizontally-reciprocating looper 35 then moves forward and a pair of beaks 74, carried by looper 35 and spring- biased together, move into loop 73 to retain it while looper 34 withdraws. Plate 36 then moves leftwards with the backing fabric, whereby needle 32 in the second penetration to the right of finger 37 lays yarn over the latter before entering the loop 73 held by looper 35, which then withdraws to release loop 73. A yarn takeup then pulls loop 73 up and around needle 73 to form a first chain stitch 100. During its next ascent the needle throws a loop 178 which, as previously, is seized in succession by the loopers 34 and 35. After the needle has withdrawn from loop 73, feeding movement of the backing fabric pulls the yarn over the hump 99 to tighten the chaining loop 73 on the lower side of the fabric and to leave a pile loop 180 on the upper side of the fabric. Presser plate 36, and with it the backing fabric, then move rightwards to their initial position, whereby needle 32 in its third penetration passes to the left on finger 37 and lays yarn thereover. During continued operation, each needle of the multi-needle machine produces a succession of loose-stitch zig zag chain stitches having the chaining loops 73 tight against the reverse side of the fabric and the other loops 180 forming uncut pile on the obverse side of the fabric to produce one-sided terry cloth. Presser plate 36 is carried by an axially-slidable shaft (103) journalling a cylindrical cam (118) formed at each end with respective cam surfaces (120, 121) co-operating with respective fixed rollers (128, 129) for imparting reciprocating motion to shaft (103) via thrust bearings (134) carried thereby.
Patent GB-1110655-A (GB)
Title: Process for the production of polyurethane compositions
IPC: C08G18/10
Filed: 1965-12-28
Abstract: A non-porous polyurethane sealing, caulking or coating composition consists of a blend of a conventional isocyanate-terminated polymer and a diimine of formula <FORM:1110655/C3/1> wherein R1, R2, R3 and R4 are H, alkyl with 1-6 carbon atoms, or phenyl; and A is alkylene with 2-6 carbon atoms or non-vicinal arylene with 6-12 carbon atoms. The composition may include up to 75% by weight of inert organic solvent, as well as conventional additives, e.g. carbon black, SiO2, talc, TiO2 and plasticizers.  The compositions cure at atmospheric temperature.  High humidity speeds curing. Example I uses 1,2-ethylene bis(isopentylidene imine) and a mixture of toluene and 2-ethoxyethyl acetate as inert solvent. Example II compares the performance of a mixture of an isocyanate-terminated polyurethane containing TiO2, lime and aluminium silicate, and 1,2-ethylene bis (isohexylidene imine) with a conventional two-part composition containing no di-imine. Other suitable di-imines are listed in the Specification.
Patent GB-1241909-A (GB)
Title: Improvements relating to lift trucks
IPC: B66F9/075
Filed: 1969-11-11
Abstract: 1,241,909. Mounting motors; spring suspensions. EATON YALE & TOWNE G.m.b.H. 11 Nov., 1969 [18 March, 1969], No. 65168/69. Headings B7D and B7H. [Also in Division B8] The front of a masted lift truck is supported at each side by a drive unit 7 consisting of a motor 7a, a gear-box 12 and a drive wheel 23, the drive unit being resiliently mounted on the truck frame and pivotally supporting the mast assembly 24. Each drive unit is secured to an arm 8, which is pivotally mounted on the truck frame at 11, and a spring assembly 20 is mounted between the drive unit housing and a plate 17 on the truck frame. The drive unit housing 25 extends forwardly of the wheel axle and is provided with a bearing 28, 30 for pivotally supporting the mast assembly 24. (For Figure see next column.)
Patent GB-1191351-A (GB)
Title: Improvements in or relating to Apparatus for Providing D.C. Pulses of Predetermined Duration
IPC: H03K17/73
Filed: 1967-12-05
Abstract: 1,191,351. Pulse generators. BROWN, BOVERI & CO. Ltd. 5 Dec., 1967 [7 Dec., 1966], No. 55249/67. Heading H3T. A pulse generator comprises a thyratron or thyristor 3 connected as shown to terminals of a load 4 and direct current supply 1, 2. As described, capacitor 5 is initially charged with the polarity shown via the load 4 and the path E-B 1  of unijunction transistor 7. When the unijunction transistor 7 becomes non-conductive, capacitor 5 discharges slowly via 4 and 6 until unijunction transistor 7 is again triggered, recharging the capacitor with the polarity shown. The duration of the charging pulses is sufficiently short as to have no effect on load 4. When the thyratron or thyristor 3 is fired by a short pulse applied to its control electrode, the load is connected across the direct current supply, initiating an output pulse. Capacitor 5 is immediately discharged via devices 3 and 9 and subsequently recharged through resistor 6 until unijunction transistor 7 once more becomes triggered when capacitor 5 discharges via the thyristor 3 and path E-B 1 , quenching the thyristor 3 and terminating the output pulse in load 4. The duration of output pulse may be adjusted by variation of resistor 6.
Patent GB-552748-A (GB)
Abstract: 552,748. Heat treating powders and small articles. GRENE, G. H. S., and. WILD-BARFIELD ELECTRIC FURNACES, Ltd. Oct. 20, 1941, No. 13485. [Class 51 (ii)] The heat treatment of powders and small articles is effected by placing the material to be treated on superposed shallow trays in a retort where they are subjected to the action of a stream of gas. In the furnace shown in Figs. 1 and 2, an annular retort 5 is arranged in an annular chamber formed between a central column 3 and an outer wall 1 provided with heating elements 4. The retort is provided with a removable cover supporting frames carrying trays 6 on which the material to be treated is placed. The frames are formed by inner and outer vertical tubes 7, 8 having radial ledges 9 for supporting the trays. Alternate tubes 7, 8 are perforated. Gas is supplied through the perforated tubes 7 and after passing over the material is withdrawn through the perforated tubes 8.
Patent GB-1173609-A (GB)
Title: Improved Light-Sensitive Materials
Inventor: WILLEMS JOSEF FRANS
IPC: G03C1/34
Filed: 1966-12-12
Abstract: 1,173,609. Photographic materials. GEVAERT-AGFA, N.V. Nov.17, 1967 [Dec. 12, 1966], No.55445/66. Heading G2C. Photographic silver halide materials are stabilized against fog by including in the silver halide layer or a water-permeable layer on the same side of the support as the silver halide layer, a water soluble compound of one of the formulae; wherein X 1  is a bivalent organic radical; X 2  is an aliphatic or aromatic bivalent group; M is H, alkali- or alkaline earth-metal, ammonium, guanidine, or an organic amine; and Y is an aliphatic, alicyclic, aromatic or heterocyclic radical, which may be substituted. A number of such compounds are listed. The emulsion may also contain a development accelerator, e.g. a polyoxyalkylene compound, sensitizers and other conventional stabilizers and additives. The compounds may be used as 0À1-30 mg per mole of silver halide, and may be added at any stage during the emulsion preparation.
Patent GB-1240134-A (GB)
Title: Desulphurisation process
Inventor: PALMER BRIAN MICHAEL
IPC: C07C7/12
Filed: 1968-11-27
Abstract: 1,240,134. Desulphurizing olefins. BRITISH PETROLEUM CO. Ltd. 17 Nov., 1969 [27 Nov., 1968], No. 56305/68. Heading C5E. An olefin feedstock is desulphurized by contact with supported elemental Ni under conditions such that the sulphur is absorbed by the Ni. Preferably hydrogen is present in an amount insufficient to hydrogenate the olefin but sufficient to hydrogenate unsaturated organic radicals produced by the removal of sulphur, e.g. in a molar ratio to the hydrocarbon of 0À001: 1 to 0À1: 1. Ni may be supported on a refractory oxide of a Group II-V element or on kieselguhr, pumice or sepiolite. The desulphurization may be carried out at 0-350‹ C. and 0-2000 psig. Examples describe the desulphurization of a feedstock comprising mainly butenes.
Patent GB-1167720-A (GB)
Title: An improved safety device for a door lock on washing machines
IPC: D06F37/42
Filed: 1967-12-13
Abstract: 1,167,720. Machinery safety devices. HOLZER-PATENT A.G. 13 Dec., 1967 [29 Dec., 1966], No. 56614/67. Heading F2J. [Also in Division G3] To prevent the door of a washing machine from being opened while the drum is rotating, the energizing circuit of an electromagnetic door lock 3 includes transistor switches responsive to the drum's speed of rotation. The same switching devices also form part of a speed control circuit for the drive motor 5 of the machine (see Division G3). A tacho-generator 6 driven from the motor 5 or from the drum of the machine provides a speed-related voltage which is rectified by a diode D1 and compared with a reference voltage from a voltage divider 9, 10, 11 by a differential amplifier including transistors T2, T3, the amplifier output controlling a switching amplifier T1 for a power semi-conductor 2 supplying the motor 5 and/or the door lock 3. The circuit includes manually or programme controlled contacts 12-15. When the drum is to be stopped, contacts 12, 13 are closed and contacts 14, 15 opened. When the speed-related voltage falls below a low reference voltage (from contact 12), the semi-conductor 2 is rendered conductive to allow energization of the latch 3 by closing a push-button contact 4.
Patent GB-1373949-A (GB)
Title: Shear discharge conveying system
IPC: B21D43/28
Filed: 1971-12-06
Abstract: 1373949 Removing work from shears D J JARMAN 6 Dec 1971 [6 Jan 1971] 56627/71 Heading B3W [Also in Division B8]  An assembly for removing sheared material from shears comprises a conveyer 12, arms 16, for supporting the material during gauging, i.e. before it is sheared, which can be lowered during the cut and while sheared material is passing over them on the conveyer, a plate 37 pivotable to allow scrap to fall in a bin 44 and a stacking device 14 for stacking the sheared material in orderly stacks. The assembly includes a plate 17 disposed at an angle to allow the sheared material, e.g. a sheet, to slide on to the conveyer from the shear. The conveyer comprises belts of different widths to carry sheets of different sizes. There may be three rows of arms 16, each row consisting of a shaft 27 which supports rods 28 each carrying a roller, covered in material such as rubber, or a runner. The shaft is lowered by a pneumatic piston and cylinder unit 24 which may be actuated by a switch on a back gauge of the shear. The plate 37 is pivoted about its edge remote from the conveyer by a piston and cylinder unit 41 to allow scrap material to fall into the bin 44 and has ball bearings 47 mounted in its upper face for smooth passage of a sheet over the plate. The unit 41 may be actuated by the operation of the shear or by a pedal 38. The wheeled stacking device 14 has brackets (64) (Figs. 2 and 3, not shown) for engaging pegs (66) on a conveyer frame member (67). The frame of the stacking device includes tubes 57, 58 which act as surge tanks for the pressure fluid operating system. An aligning plate 128, Fig. 7, is mounted for adjustment along the tubes 57, 58 by means of a clamp 87 running on bearings 93, 98 and 106, Fig. 6, and having a rack 103 for engaging a rack 88 on the tube 57 when a clamping screw 99 is tightened. The plate 128 is hinged to a support 134 to allow the angle at which it engages a stack to be varied and is retained in selected position by means of a locking plate 149. The support 134 is connected to rails 136 which are also connected to the piston-rod 143 of a cylinder 117. The support frame 114 of the cylinder is secured to the clamp 87 by four posts, 108, 109 only shown, which carry rollers such as 139, 138 which engage in the rails 136. When the rod 143 is advanced, the plate 128 abuts the edges of the sheets forming a stack on roller units 157. The plate makes an aligning stroke after each sheet falls on to the stack, sheets are pushed against a stationary aligning plate or against an adjustable stop 163 clamped to the frame 162 of a roller unit. Means for counting the sheets sheared may be overridden for scrap cropping by the operation of the pedal 38 to actuate the scrap deflector plate 37. An electric circuit for the automatic operation of the assembly includes a manually operated switch for the sheet aligning plates.
Patent GB-1325914-A (GB)
Title: Electrical spark generating devices
IPC: H01L41/113
Filed: 1970-12-01
Abstract: 1325914 Piezo-electric generators CHAFFOTEAUX & MAURY 1 Dec 1970 [9 Dec 1969] 57100/70 Heading H2A An igniter comprises a housing 1 enclosing a piezo-electric unit 2 engaged by a spring-loaded hammer 7 having a central bore 15 which receives the enlarged end 12 of a control rod 11 extending out through the housing. The bore 15 has an eccentric enlargement 16 formed with an inturned lip 17 which hooks behind a conical enlargement 13 on the control rod. On withdrawal of the control rod against a spring 21 the hammer is retracted against spring 18 until one side engages a ramp 8 on the housing which causes the hammer to tilt about the end 12 of the rod until the lip 17 disengages from the enlargement 13 and the hammer is released. The enlargement re-engages automatically with the lip when the control rod is released. The control rod may be actuated indirectly by a push-button or pivoted handle and lever mechanism.
Patent GB-1155560-A (GB)
Title: Self Service Footwear Merchandising Device
Inventor: BERK MILTON
IPC: A47F7/08
Filed: 1966-12-29
Abstract: 1,155,560. Displaying articles. M. BERK. 29 Dec., 1966, No. 58037/66. Heading A4T. A footwear display comprises a pedestal 11 rotatably supporting a platform 13 carrying fixed shoes 30 of different sizes for try-on and also rotatably supporting at 24, 25 an elongate frame 12 having perforated panels 21 to which hooks are attached for supporting a plurality of pairs of shoes of the sizes of those on the platform 13, the platform having a ratchet spring 36 engaging fixed gear 35 to retard rotation of the platform.
Patent GB-1203609-A (GB)
Title: The method for measurement of the mixed gamma-neutron radiation dose equivalent and an arrangement for the application of this method
IPC: G01T1/20
Filed: 1967-12-22
Abstract: 1,203,609. Detecting neutrons. INSTYTUT BADAN JADROWYCG. 22 Dec., 1967 [23 Dec., 1966], No. 58268/67. Heading G6P. [Also in Division G1] The dose equivalent (i.e. measured dose in rems, which is equivalent to the absorbed dose in rads multiplied by appropriate modifying factors) of a mixed field of gamma and neutron radiation is measured using a tissue equivalent ionization chamber 1 which contains an organic scintillator 2 coupled to a photomultiplier 3. The output current of the ionization chamber is linearly proportional to the absorbed dose rate and the scintillation counter current is dependent on the quality factor (the modifying factor by which the dose measurement is to be multiplied to obtain the dose equivalent). It can be arranged, by the use of resistors R 1  and R 2  and in accordance with the above-mentioned two relationships, that the current fed to an electrometer 4, being the difference between the ionization chamber current and.a fraction of the scintillation counter current, is a direct measurement of the dose equivalent rate from which the dose equivalent itself is calculated.
Patent GB-1218028-A (GB)
Title: Improvements in or relating to micrometer gauges
Inventor: BOWERS GORDON
IPC: G01B3/18
Filed: 1967-12-22
Abstract: 1,218,028. Micrometers. T. BOWERS & CO. (TOOLMAKERS) Ltd. Jan.9, 1969 [Dec. 22, 1967], No.58330/67. Heading G1M A micrometer comprises a tubular member 11 with a fixed anvil 12, and a spindle 13 slidable therein and having an anvil 14, the measurement of a groove 15 being given on the usual scale 4 and an outer graduated barrel 8 covered by a windowed cowl 9. A second micrometer barrel 18 carries an anvil 19 to give a depth measurement. Figs.3 and 4 (not shown) illustrate the above groove measuring micrometer provided with a spring (25) serving to return the spindle 13 and anvil 14 to a position where the anvils 12 and 14 abutt, and grooves (23) may be provided to accommodate a forked stop (24). In a modification the spindle 13 may be attached to the spindle 2 by an interposed separate or integral pusher-rod.