baber/WOPTO huggingface dataset:
Patent GB-607426-A (GB)
Title: Improvements in and relating to alkylsilicone sols and gels
IPC: D21H17/59
Filed: 1946-02-04
Abstract: Sols and gels are prepared by treating an aqueous solution of a sodium or potassium siliconate with a solution of an acid in a water-miscible organic solvent, the final pH value being 7 or less if a sol is required and above 7 if a gel is required, and there being in the latter case at least 15 per cent of the solvent present.  If the acid forms with the metal ion a salt insoluble in the solvent mixture, and the precipitated salt is removed, a sol of greater stability is obtained.  There are specified: siliconates-sodium methyl, sodium ethyl and potassium methyl siliconates; acids-acetic and sulphuric; solvents-ethyl and isopropyl alcohols and acetone.  In examples: (1) aqueous sodium methyl siliconate solution is run into a solution of acetic acid in 95 per cent alcohol to give a stable sol at pH 6.2; (2) aqueous sodium methyl siliconate solution is run into a solution of sulphuric acid in 95 per cent alcohol, precipitated sodium sulphate is filtered off, and a stable sol at pH 1.5 obtained; (3) aqueous sodium ethyl siliconate solution is run into alcoholic acetic acid solution to obtain a stable sol at pH 6.1; (4) aqueous sodium methyl siliconate solution is run into a solution of sulphuric acid in 33 per cent aqueous alcohol to a pH of 6.5, further 95 per cent alcohol was added (raising the pH to 7.2), the precipitated sodium sulphate removed and a sol obtained which after 48 hours gelled; part was dried to an aerogel and part extracted with ether and dried above the critical temperature and pressure as explained in Specification 607,427 to a water-repellent aerogel; (5) a mixture of methyl trichlorosilane and dimethyl dichlorosilane is hydrolysed in ice water and the precipitate dissolved in alcoholic sodium hydroxide; the solution is run into aqueous alcoholic sulphuric acid to produce a sol of pH 6.2 to which further alcohol was added, followed by removal of precipitated sodium suphate; (6) alcoholic acetic acid is added to a mixture of alcoholic potassium methyl siliconate and aqueous sodium methyl siliconate to give a sol of pH 7.4 which rapidly gelled.
Patent GB-607459-A (GB)
Title: Improvements in or relating to horizontal coal carbonising beds
IPC: C10B1/06
Filed: 1946-02-05
Abstract: 607,459. Retort settings. PAYNE & FLOOD, Ltd., PAYNE, L. A., and FLOOD, J. Feb. 5, 1946, No. 3597. [Class 51(ii)] In a gas bench setting, the retorts d are supported above and independently of the recuperator on pier wall arches b incorporating nostril blocks c which also form part of the flame arch e.
Patent GB-744613-A (GB)
Title: Improved implement for promoting and maintaining the condition of lawns, greens and other turfed surfaces
Inventor: KUPER SESSEL
IPC: A01C21/00
Filed: 1954-01-14
Abstract: 744,613. Fertilizing the sub-soil. PANAFRICAN INDUSTRIES, Ltd. Jan. 14, 1954 [Feb. 9, 1953], No. 3641/53. Class 6 (1). An implement for fertilizing the subsoil below turfed surfaces comprises a frame 1 mounted on tractor draught-links and carrying a pair of laterally-spaced discs 5 for cutting the turf longitudinally and a transverse blade 14 for undercutting the turf between the longitudinal cuts, the blade having a forward cutting edge 16 at approximately the maximum depth of the discs and an upwardly-inclined rear portion 17 over which the cut turf rides and below which fertilizer fed from a hopper 22 is blown by exhaust gas from the tractor, the blade being supported by side members 13 that are aligned with the two discs. At the front, the frame carries triangulated attachment points 2a, 2b, 2c for the draught-links and at the rear two wheels 18 are adjustably mounted on stems 19. The discs 5 are mounted on a common axle 6 which drives a distributer in the hopper 22 through a chain 23. Exhaust gas from the tractor is fed by a pipe 25 which joins the outletpipe 27 from the hopper adjacent to the end 26 below the rear of the blade 14. Several such devices may be mounted, side by side, on the frame.
Patent GB-344171-A (GB)
Title: Improvements relating to display signs
IPC: G09F7/18
Filed: 1930-02-04
Abstract: 344,171. Hanging pictures on walls. MENNERICH, C., Villa Sevigne, Chamblandes, Pully-Lausanne, Switzerland. Feb. 4, 1930, No. 3785. Convention date, Feb. 8, 1929. [Class 52 (iv).] A reversible frame 1, Fig. 2, for placards &c. is detachably engaged with a fixing-plate 3, Fig. 1, adapted to be secured to a wall or other surface, by means of an extension 9 on one side fitting under a raised central portion 5 of the plate 3 and having an opening 7 engaging over a correspondingly shaped boss 4 on the plate 3. A bevelled projection 8 is provided on the extension 9 to facilitate insertion under the plate 3.
Patent GB-907016-A (GB)
Title: Destaticized polypropylene compositions and their production
IPC: C08J7/044
Filed: 1960-02-03
Abstract: Polypropylene compositions comprise as antistatic agent a compound having a solubility in water of at least 0,5 grams per 100 grams of water at 25 DEG C. and having the general formula HO(Y-O)xH in which Y is an ethylene or propylene group and x is an integer that gives a polymer having a molecular weight between 200 and 900 or when Y is propylene, up to 1,200.  The antistatic agent may be incorporated in the polypropylene together with a compatible surface-active agent, e.g. sulphonated petroleum oils, alkyl phenoxyethylene alkanols and octylphenyl polyethylene glycols, and optionally stabilizing agents, slip-agents, antiblocking agents and drawing agents, e.g. stearamide, oleamide, silica, butylated hydroxyanisole, 2,4,6-trialkyl phenols, bis(2-methyl-1,4-hydroxy-5-tert. butyl phenyl) sulphide, thiodipropionic acids and esters and 4,41-butylidene bis(6-tert. butyl alkyl phenols).  The compositions may be used for making films, filaments, tapes, sheets and other shaped articles.  Specification 752,820, 777,538, 789,698 and 824,480 are referred to.
Patent GB-1150536-A (GB)
Title: Improvements in and relating to the Evacuation of Receptacles
IPC: F04F9/00
Filed: 1968-01-25
Abstract: 1,150,536. Diffusion pumps. BALZERS PATENT-UND BETEILIGUNGS A. G. Jan. 25, 1968 [Feb.23, 1967], No.3866/68. Heading F1E. Apparatus for evacuating a vessel 13 comprises . one or more diffusion pumps 1, 2 and a backing pump 16, 'the diffusion pump suction side being closable by a flap valve 4 which is incapable of providing a vacuum-tight seal, and the diffusion pump exhaust side being connected to the backing pump 16 through a vacuum-tight valve 15. In operation, when vessel 13 is to be opened, it, is flooded through pipe 18' or by-pass 17 with a dry gas inert with respect to the diffusion pump medium, e.g. helium or nitrogen, up to atmospheric pressure, flap 4 and valve 15 then being closed. When vessel 13 has been opened, it is stated that air does not penetrate past flap 4, although it is not vacuum-tight, due to the gas on the pump side of the flap being at atmospheric pressure. For treatment of metals &c. in vessel 13, treatment gas may be admitted to the vessel. The flap valve 4 is heatable for desorption.
Patent GB-965942-A (GB)
Title: Improvements in or relating to closure caps for bottles
IPC: B65D41/48
Filed: 1962-02-01
Abstract: 965,942. Stoppers. G. ANTONACCI. Jan. 23, 1963 [Feb. 1, 1962], No. 3867/62. Heading B8T. A screw cap e.g. of polyethylene has a central depression 13 with a frusto-conical side wall 14 which is deformed when the cap is applied to a bottle neck to form a seal therewith Instead of threads the cap flange 20, Fig. 5, may be formed with an annular rim adapted to fit over an annular bead on the bottle neck; the depression is cylindrical and the flange has a slit 22 and a tab 22, which may facilitate removal of the flange. A lateral projection 19 is disposed on either side of the cap, and these projections serve as abutments for the thumbs or fingers when it is desired to remove the cap.
Patent GB-828230-A (GB)
Title: Improvements in or relating to induction motors
IPC: H02K3/28
Filed: 1957-02-05
Abstract: 828,230. Change-pole windings. MOTEURS SEGAL & CIE SOC. ar.l. Feb. 5,1957 [Feb. 16, 1956; June 2, 1956], No. 3920/57. Class 35. A single-phase, change-pole inductor motor is wound to produce four or six poles, using all the conductors in each pole number. As shown, for a 36 slot machine, the winding is divided into " A " and " B " groups J1A, J2A, J3A and J1B, J2B. J3B respectively, each section comprising three coils of pitch ten slots. The coils of " A " group are connected in series by connectors b and a and have terminals N and R. The coils of " B " group are similarly series connected by connectors d and e, and have terminals G and R. The two groups are thus linked by common connector c to terminal R. By energizing terminals N and G, six-pole operation with all the coils in series is achieved (Fig. 2), while energization of N and G in parallel with R as a common return gives fourpole operation (Fig. 3) with the groups A " and " B " in parallel. A conventional fourpole starting winding may be provided in quadrature with the poles induced in the fourpole condition of the main winding. This auxiliary winding may be reversibly fed through a condenser, and may be permanently in circuit in the four-pole condition. If desired, starting windings for both pole-numbers may be provided. It is also described how an auxiliary winding of similar layout to the main winding but using fewer slots, may be arranged to produce either pole-number while maintaining the quadrature relationship. This auxiliary winding may be energized through a condenser or from a quadrature phase. The machine may be provided with 12 or 24 slots.
Patent GB-396793-A (GB)
Title: Improvements in or relating to electrically controlled clock systems
IPC: G04C13/04
Filed: 1932-02-10
Abstract: 396,793. Electric clocks. HOUSMAN, R. F. A., 11, Altyre Road, Croydon. Feb. 10, 1932, No. 3968. [Class 139.] In a clock system wherein a number of secondary clocks are operated. by periodic electric impulses from a master clock, the pendulum and time keeping mechanism of the latter are replaced by a synchronous motor geared to the usual half minute contact mechanism. Alternatively the motor a, b drives through worm or spur gearing c, d, e a wheel f rigid with a cam g, which at halfminute intervals releases a lever h pivoted at h2 causing a plunger j to depress a mercury column k1 whereby mercury is forced over the weir l to close the impulse circuit through the secondary clocks o, p, q. The circuit remains closed for a time dependent on the rate of leakage of the mercury past the plunger j, and may alternatively energize release magnets for driving mechanisms of the secondary clocks.
Patent GB-774733-A (GB)
Title: Improvements in or relating to penicillin salts
Inventor: GAILLIOT PAUL
IPC: C07D499/00
Filed: 1955-02-10
Abstract: The invention relates to salts of penicillin V (phenoxymethyl penicillin) with tetracycline, oxytetracycline and chlortetracylcine. The salts are prepared by reacting penicillin V with the tetracycline in an organic or aqueous organic solvent e.g. dimethyl formamide, an alcohol, ether ketone, ester or chloro compound.  Alternatively, a soluble salt of penicillin V may be reacted with a soluble salt of the tetracycline in the presence of water, a water-miscible solvent or other medium in which the initial salts are soluble and in which the salt formed is insoluble or may be made insoluble by the addition of a suitable diluent.  The salts have a wider antibacterial spectrum than the parent materials and have a depot effect when injected (see Group VI).  Reference has been directed by the Comptroller to Specification 747,779.ALSO:Salts of penicillin V (phenoxy methyl penicillin) with tetracycline, oxytetracycline or chlortetracycline (see Group IV(b)), which have a wider antibacterial spectrum than the parent materials and a depot effect when injected, are incorporated into a solid or liquid pharmaceutical carrier.  Tablets or powders are prepared with diluents such as starch, lactose, talc, stearic acid, magnesium stearate and gums.  Injections are prepared with liquid diluents such as water.  The salts may be put up in capsule form.  Reference has been directed by the Comptroller to Specification 747,779.
Patent GB-719645-A (GB)
Title: Containers having chemically resistant linings
Inventor: GRIFFITHS LESLIE HERBERT
IPC: B65D90/04
Filed: 1952-02-15
Abstract: A chemically resistant lining for a container consists of a layer of cashew nutshell resin bonded to the container by a layer of hydraulic cement-rubber latex composition.  Ceramic tiles may p  be partly embedded in the bonding layer and the exposed joints pointed with the cashew nutshell resin.  In an example, the inside of a steel tank, which is to contain acid, is coated with a latex-hydraulic cement consisting of 100 parts by weight of rubber latex, 100 parts of cement and 200 to 300 parts of sand and tiles are pressed into the coating before it hardens.  The tile joints are then pointed with a cement consisting of 100 parts by weight of liquid cashew nutshell resin, 55 parts of cashew nutshell-solid ground resin, 50 parts of acid-resisting brick dust and 10 parts of paraformaldehyde.
Patent GB-536322-A (GB)
Title: Improvements relating to the concentration of sulphuric acid
IPC: C01B17/88
Filed: 1940-03-04
Abstract: 536,322. Concentrating sulphuric acid. KALOUS, M. J. March 4, 1940, No. 4040. [Class 32] Sulphuric acid is concentrated by passing it in counter current with superheated steam which is circulated continuously through the concentrating vessel and a superheater, the heat required for the concentration being supplied by the superheat of the steam which is thus circulated without substantial condensation. The steam is circulated from a heater 1 through line 1<SP>1</SP> to the bottom of a concentrator 2 up which it passes in counter current to the dilute acid supplied through a spray 3. The additional steam generated from the dilute acid is removed through line 5 to a condenser 6 where it is condensed by a water spray 7. The remaining steam is circulated by a pump 13 through valve 10, separator 11 and valved line 12 back to the superheater 1. Valved lines 18, 19, 20, 21 are provided for exhausting air and for warming the pump 13 when bringing the plant on stream. A plurality of concentrator and superheater units may be used in combination. The spray condenser 6 may be arranged in the steam circuit as it passes from the concentrator 2 to the heater 1.
Patent GB-106511-A (GB)
IPC: A61F2/58
Filed: 1916-03-20
Abstract: 106,511. Hobbs, E. W. March 20, 1916. Pivot pins.-Metal pins connecting the fingers of artificial hands to their operating links comprise a reduced part J on which the metal link J<1> bears and an enlarged head J<2> and nut J<3> constituting a support for the pin in the wooden finger. The nut J<3> may be pinned to the part J.
Patent GB-802639-A (GB)
Title: Improvements in glass compositions
Inventor: HAZELBY DAVID
IPC: C03C3/17
Filed: 1956-02-09
Abstract: 802,639. Glass. BRITISH THOMSONHOUSTON CO., Ltd. Feb. 8, 1957 [Feb. 9, 1956], No. 4095/56. Class 56. [Also in Group XL(a)] A glass comprising at least 98 per cent by weight P2O5, 55-65; BaO, 25-40; Al2O3, 1-4, and alkali metal oxide, 1-9 (the remainder if any being impurities), is used to coat either a uranium rod, or the inside of an aluminium can enclosing the rod, forming the fuel element of a nuclear reactor. The glass is powdered and suspended, e.g., in methylated spirits, from which it is deposited, by spraying or electro-phoresis, and then fired to such temperature as to form a non-porous enamel. Nickel nitrate may be added as an electrolyte to the methylated spirit suspension when using the electrophoretic technique. Alternatively nitrocellulose and butyl acetate may be used as the suspension medium.
Patent GB-1003071-A (GB)
Title: An ignition system for a gas lighter
IPC: F23Q2/16
Filed: 1963-01-31
Abstract: 1,003,071. Gas lighters. A. RACEK, and J. RAGAMITSCH. Jan. 31, 1963 [Jan. 31, 1962; July 28, 1962], No. 4121/63. Heading F4F. The gas valve 11 of a lighter is opened by turning the flint wheel 2 which causes a tube 5 carrying the flint 7 to rock to the right in a flared recess 6, raising the gas valve 11 through a bell-crank 9 rocking on a knife edge 9c or pivot pin, or through a transverse slide. Fig. 3, not shown.
Patent GB-755867-A (GB)
Title: Improvements in plunger operated electric switches
Inventor: PEARSON LDGAR
IPC: H01H13/64
Filed: 1954-02-12
Abstract: 755,867 Retractive switches; switches held and set free mechanically. ELECTRICAL PRODUCTS (COLNE), Ltd. Feb 10, 1955 [Feb. 12, 1954; Dec. 2, 1954], Nos 4126/54 and 34893/54. Class 38(5) An electric switch actuated mechanically or by hand comprises a spindle or plunger rod D<SP>1</SP>, a plurality of similar stationary terminal blocks A mounted in two rows parallel to the plunger, and one or more contact strips D carried by the plunger to bridge pairs of contacts. The strips D are mounted by means of spring-loaded screws e<SP>1</SP> on holders d of insulating material, and make sliding contact with the terminal blocks in slots a<SP>1</SP>. The bridging contacts are separated by spacers c and a spring d<SP>2</SP> is arranged to oppose forward motion The contact blocks A are mounted in fours on individual bases of insulating material B, the adjacent contacts on the same side of the plunger being separated by insulating blocks a. In a modification (Figs. 4 and 5, not shown) a spacer c is replaced by a spring and two contact holders are loosely mounted on the plunger, one of them being retained by a latch. Movement of the spindle causes the second holder to release the latch whereby the first contact holder moves rapidly forward. In a further modification (Fig. 6, not shown) in which switching takes place on movement of the spindle either forwards or backwards, contact holders are loosely mounted on the spindle being retained against a circlip between them by springs acting on their outer sides.
Patent GB-1188876-A (GB)
Title: Electromagnetically Controlled Magnetically-Retained Relay.
IPC: H01H51/01
Filed: 1968-01-26
Abstract: 1,188,876. Bistable electromagnetic relays. WESTINGHOUSE ELECTRIC CORP. 26 Jan., 1968 [16 Feb., 1967], No. 4165/68. Heading H1N. A polarized bistable relay has two C-shaped core 15, 16 members arranged in parallel planes with a permanent magnet between them and windings 41a, 41b, 42a, 42b, on the core for momentary energization to effect movement of an armature 18 between poles 15a, 16a and 15b, 16b of the cores. The armature comprises magnetic steel straps 18a, 18b insulated at 34, 35 and supported on three cantilever contact springs 20 (Fig. 9, not shown) which co-operate with fixed contacts 27, 28. The permanent magnet flux retains the armature in the position to which it was last moved and momentary reverse energization of the windings is necessary to move the armature to its other stable position. Fig. 8 is a diagrammatic representation of the magnetic circuit in one plane. The armature may be mounted on pivoted arms rather than cantilever springs (Fig. 11, not shown) and only one coil may be provided on each C-shaped core (Fig. 12, not shown).
Patent GB-1014105-A (GB)
IPC: C08B30/20
Filed: 1963-02-01
Abstract: In a process of fractionating starch to recover therefrom amylose and amylopectin, a cold aqueous solution containing 7-9% of starch (calculated as dry substance) is heated to form a starch gel, the gel is subjected to hydrodynamic forces by means of a centrifugal disperser and the resulting mixture is then cooled, so that amylose in the form of globules separates from a liquid phase containing amylopectin. The starch solution may be heated to 85 DEG  C. and the centrifuged mixture may be cooled with or without agitation.  The amylose may be separated from the liquid phase by filtration or centrifugation, and the amylopectin may be obtained as a concentrated aqueous solution or as a powder, by concentrating in vacuo the liquid containing it.  Substances such as urea and formalin may be added to the solution to modify the viscosity thereof, or to modify the starch properties.  Examples describe the fractionation of potato starch. Chemically modified starches, and also compounds of starch with metals, e.g. calcium, may also be fractionated.  The centrifugal disperser may have rotating perforated or cam discs in which the liquid phase is subjected to high frequency hydrodynamic pressure waves or pulses (sound waves).
Patent GB-931100-A (GB)
Title: A silo for loose particulate materials
IPC: B65D88/64
Filed: 1961-02-03
Abstract: 931,100. Silos. HEINR. AUER MUHLENWERKE KOMM.-GES. a. A. Feb. 3, 1961 [Feb. 3, 1960; Aug. 9, 1960], No. 4222/61. Class 78 (1). A silo for material in powder or dust form has a base opening 10 controlled by a rotatable gate or roller 11, a nose 6 projecting inwardly of the silo from one wall 2, and a sloping portion 9 extending towards the opening 10 from the opposite wall 3 to which it is joined by a transistorized zone 12 having a radius of curvature equal to at least half the width of the silo. Clogging of the material, if damp, is circumvented by a vibratory panel 13 actuated by a reduction in the pressure exerted by the material on a switch 14; as clogged material is broken up and falls to the base of the silo, the pressure on switch 14 increases, and vibration of the panel is interrupted. The inner wall surfaces at the lower part of the silo are preferably of hardwood plywood board, e.g. beechwood; alternatively the sliding surfaces may be lined with compressed sawdust impregnated with synthetic resin.
Patent GB-564271-A (GB)
Title: Improvements in concentrated photographic solutions
IPC: G03C5/26
Filed: 1943-03-15
Abstract: 564,271. Photographic hardening solutions. KODAK, Ltd. (Eastman Kodak Co., and Russell, H. D.). March 15, 1943, No. 4223. [Class 98 (ii)] A photographic hardening solution comprises at least 10 per cent by weight of an aluminium salt capable of hardening gelatine, e.g. aluminium chloride, bromide, sulphate, or nitrate, and at least 10 per cent by weight of a hydroxyaliphatic amine, e.g. mono-, di-, or tri-ethanolamine, 2-amino-butanol, #-diethylaminoethyl alcohol, 2 - amino - 2 - methyl - 1 - propanol, or 2 - amino - 2 - methyl - 1 : 3 - propanediol, or a cyclic derivative thereof such as morpholine. The amine should preferably be present to an extent of 20 per cent. The amount of water present should not be more than 40 per cent, and may be even less than 5 per cent. The water may be introduced by using hydrated compounds. The solution preferably contains acetate or propionate ions, and also a boron compound yielding boric acid such as boric acid itself, an alcohol such as methyl alcohol, ethyl alcohol, ethylene glycol, glycerol, diethylene glycol, triethylene glycol, or tetraethylene glycol, and compounds for preventing incrustation and precipitation, e.g. di- and tri-basic organic acids, citrates, tartrates, urea and glucono-d-lactone. If the solution is to be added to fixing baths; it should contain sufficient sulphur dioxide to prevent sulphurization. Sulphur dioxide may be introduced into the solution. Examples of various compositions, all containing aluminium chloride, are given. The fixing solution may comprise a hypo solution containing sodium bisulphite, or the fixing agent may be ethanolamine, ethylenediamine, guanidine, potassium, or ammonium thiosulphate. The rate of fixation may be increased by addition of the hardener.