baber/WOPTO huggingface dataset:
Patent GB-1020758-A (GB)
Title: Improvements in or relating to washing machines
IPC: H02K7/10
Filed: 1962-09-20
Abstract: A washing machine drum is driven by a variable-speed motor via an infinitely-variable V-belt unit, the transmission ratio of the latter being changed when a speed intermediate the washing and spin-drying speeds is exceeded.  In a first embodiment (Fig. 1, not shown), a 2-4-6-pole-changing motor drives the drum via V-belts on variable-diameter pulleys. After washing and laundry distribution using 6 and 4 poles respectively, the motor is changed to 2-pole working which increases the speed resulting in centrifugally-actuated weights increasing the transmission ratio of the V-belt unit to achieve a high spin-drying speed.  A moderate spin-drying speed may be obtained by changing back to 4-pole working, the transmission ratio remaining at the increased value.  In a second embodiment (Fig. 3, not shown), a 2-4-pole motor drives the drum via planet gearing and a V-belt unit.  For washing 4 poles are used and the outer ring (having helical teeth) of the planet gearing is attracted by an electromagnet so that studs thereon fit into fixed recesses to lock the ring stationary, and thus cause the planet gearing to operate in step-down mode.  For laundry distribution, the motor is changed to 2-pole working. During both these operations, the motor is continually being reversed, and the magnet is deenergized to change to spin-drying speed when the motor direction is such that the helical teeth urge the outer ring to disengage the studs from the recesses and bring teeth into engagement with teeth on a member linked by a spring-biased multi-disc friction clutch to the first pulley of the V-belt unit (in which the planet wheels are also journalled). The planet gearing now has a 1:1 transmission ratio. The increase in speed causes centrifugally-actuated weights to increase the transmission ratio of the V-belt unit.  A high spin-drying speed is then reached, unless the motor is changed to 4-pole working to give a moderate spin.  In a third embodiment (Fig. 5, not shown), a 2-4-pole motor drives the drum through a V-belt unit, using 4,2 and 2 poles for washing, laundry distribution and high-speed spin-drying, the 2-pole speed being sufficient to cause centrifugally-actuated weights to increase the V-belt unit transmission ratio, but this being prevented during laundry distribution by a detaining pin.  In a modification of this (Fig. 6, not shown) increase is not prevented but a centrifugal switch on the motor shaft controls the motor speed during laundry distribution.  In a further embodiment, a 2-4-pole motor with a variable supply frequency is used.
Patent GB-506773-A (GB)
Title: An improved form of military and aerial entanglement and means for utilising the same
IPC: F41H11/08
Filed: 1937-12-29
Abstract: 506,773. Military entanglements. BAWTREE, A. E. Dec. 29, 1937, No. 35948. [Class 20 (i)] [Also in Group XXI] A military or aerial entanglement, consists of a ribbon of flexible, resilient, material to which has been imparted both a bend and a twist. The ribbon is capable of being rolled into a compact cylindrical form and, when in its expanded operative form occupies a space of three dimensions. The ribbon may be made of spring steel and its edges may (as shown) be formed with pointed projections a. In a modification, the projections have flattened ends and, in another modification, the edges of the ribbon are formed with a number of dovetailed recesses. The entanglement is scattered in the path of the enemy by incorporating coils of the ribbon in projectiles or bombs.
Patent GB-886698-A (GB)
Title: A method of and apparatus for removing soot and like deposits from boiler flues
IPC: F23J3/02
Filed: 1959-10-24
Abstract: 886,698. Cleaning pipes. OSTERLIN, H. Oct. 24, 1959, No. 36098/59. Drawings to Specification. Class 99(2). [Also in Group XXIX] In a method of removing, with the use of water, soot and like deposits from the walls of boiler flues finely dispersed water is supplied to the flues of the inoperative but hot boiler so that the water is absorbed by the deposit and will not or but insignificantly collect again and flow down in streams along the deposit, and the boiler is put into operation again or its performance increased so that so high and sudden a temperature increase is brought about that there is produced in the water absorbed by the deposit a strong generation of steam which tears loose the deposit from the walls. The water is sprayed from an atomising nozzle which is passed down the flue on the end of a supply pipe having a cock for controlling a hot water supply. Soda or other lump additive may be admixed with the water.
Patent GB-859863-A (GB)
Title: An improved cutting tool for the edge of a lawn
IPC: A01G3/06
Filed: 1958-11-12
Abstract: 859,863. Lawn edge trimmers. CATER, F. J. Nov. 11, 1959 [Nov. 12, 1958], No. 36312/58. Class 6(2). A lawn edge trimmer comprises a blade 2 pivoted on a handle 1 and provided with a roller 5 which rolls on the lawn. The blade 2 is pushed downwardly so that it pivots about the roller 5 and to cut the lawn edge, the blade being returned by a spring 6 to its original position.
Patent GB-1305249-A (GB)
Inventor: WOOD M
IPC: C08G18/08
Filed: 1970-07-27
Abstract: 1305249 Diamine-ketone compositions; polyurethanes GOODYEAR TIRE & RUBBER CO 27 July 1970 [25 Aug 1969 (3)] 36324/70 Addition to 1201079 Heading C3R Polyurethane prepolymers containing free isocyanate groups are cured with curative compositions prepared by contacting a mixture of a diamine whose amino groups are attached to non-benzenoid carbon atoms and a liquid ketone with a drying agent which is a molecular sieve or calcium carbide. The diamine may be ethylene diamine, propylene diamines, hexamethylene diamine, isophorone diamine, 1,4-cyclohexane bis-methylamine, 4,4<SP>1</SP>-diamino-dicyclohexylmethane or m-xylylene diamine. Suitable ketones are acetone, methyl ethyl ketone, methyl isobutyl ketone, methyl isoamyl ketone or diacetone alcohol. The molecular sieve drying agents preferably have pore sizes of 3 to 10 Angstrom units. The polyurethane prepolymer is most suitably derived from aliphatic or alicyclic polyisocyanates and active hydrogen containing materials selected from polyesters, polyesteramides, polyethers, dihydroxy terminated polymers of a conjugated diene hydrocarbon or castor oil.
Patent GB-1021409-A (GB)
Title: Frequency comparator
Inventor: TANNER LESLIE ARTHUR
IPC: G01R23/00
Filed: 1964-09-04
Abstract: 1,021,409. Frequency comparison. STANDARD TELEPHONES & CABLES Ltd. Sept. 4, 1964, No. 36339/64. Heading H3A. A circuit for comparing the frequency of two signals F1, F2 applied at terminals 1, 2 and providing an indication of the magnitude and sense of the difference comprises a mixer 3 to which the signal F1 is applied via phase modulator 8 and multiplier 6 and to which the signal F2 is applied via a similar multiplier 7, an indicator 5 coupled to the mixer output and a switched feed-back path 9 for varying the phase change introduced by modulator 8 in accordance with the mixer output. With the switch 10 in its open position indicator 5 provides an indication which is a function of the frequency of the beat signal. In the closed position of the switch the feed-back signal advances the phase of signal F1 when the beat signal is positive-going and retards its phase when the beat signal is negative-going with the result that the beat signal is distorted to provide a mean signal value having one sign when signal F1 is higher in frequency than signal F2 and the opposite sign when the signal frequencies are reversed. The sense of the difference is then indicated by a centre-zero instrument.
Patent GB-801483-A (GB)
Title: Improvements in or relating to a process for hardening artificial hides or leathers
IPC: D04H1/645
Filed: 1954-12-16
Abstract: 801,483. Stiffening leather-like agglutinated fibre materials. ALEGRE, A. A. Dec. 16, 1954 [Dec. 17, 1953], No. 36441/54. Class 140. Porous artificial leather composed of natural or synthetic fibres bonded together with a latex of natural or synthetic rubber is hardened, i.e. stiffened, by placing it in a bath at not less than room temperature containing a hardening agent which does not react with the artificial leather but hardens it by penetrating into the pores of the fibrous structure of the artificial leather without destroying its porous characteristic, followed by drying, preferably at room temperature. The hardening agent may be casein, starch or starch derivatives, glues, gelatine, dextrin, carob seed, or natural or synthetic resins, e.g. vinyl resins with a plasticiser, and may be dissolved or dispersed in aqueous solutions which may contain wetting agents to assist in impregnating the artificial leather.
Patent GB-800563-A (GB)
Title: Treatment of catalyst materials used to dehydrogenate unsaturated hydrocarbons with high energy radiations
IPC: C07C5/333
Filed: 1955-12-21
Abstract: Calcium / nickel phosphate catalysts used to dehydrogenate unsaturated hydrocarbons containing 4 to 6 C atoms to form conjugated diolefines, are submitted to ionizing radiation by high energy electrons, protons, neutrons, X rays or Y rays.  The catalyst may be irradiated before or during the reaction, and may be regenerated by similar treatment.  The butene or other unsaturated hydrocarbon used as starting material may also be pre-treated.  For example, a nickel/calcium phosphate catalyst is formed from a non-acidic solution of the two salts containing 6.5 to 12 atoms of calcium per atom of nickel and also up to 2 per cent of chromium oxide is added as activator.  The catalyst is formed into pellets, which are inserted in steel alloy tubes mounted in a reactor.  In operation, the reactor is flushed with steam and 1 volume of butylene passed in per 10 to 20 volumes of steam, the reactor being heated at 500 DEG to 700 DEG  C.  Vapours are condensed and unconsumed butylene is recycled.  Carbon deposits are removed from the catalyst at intervals by treating with steam and air.  The reactor is provided with a number of uniformly spaced wells or tunnels in which rods of Cobalt 60 are inserted which irradiate the catalyst throughout the reaction, and thus maintain conversion to a high rate.  Specification 634,391, 634,580, 679,082 and 746,611 are referred to.ALSO:Calcium/nickel phosphate catalysts used to dehydrogenate unsaturated hydrocarbons containing 4 to 6 C atoms to form conjugated diolefines, are submitted to high energy radiation, e.g. electrons, neutrons, protons, X-rays and g -rays.  The catalyst may be irradiated before or during the reaction, and may be regenerated by similar treatment. The butene or other unsaturated hydrocarbon used as starting material may also be pre-treated.  For example, a nickel/calcium phosphate catalyst is formed from a non-acidic solution of the two salts containing 6.5 to 12 atoms of calcium per atom of nickel and also up to 2 per cent of chromium oxide as activator.  The catalyst is formed into pellets, which are inserted in steel alloy tubes mounted in a reactor.  In operation, the reactor is flushed with steam and 1 volume of butylene passed in per 10 to 20 volumes of steam, the reactor being heated to 500 DEG  to 700 DEG  C.  Vapours are condensed and the unconsumed butylene is re-cycled.  Carbon deposits are removed from the catalyst by treating with steam and air.  The reaction is provided with a number of uniformly spaced wells in which rods of cobalt 60 are inserted which irradiate the catalyst throughout the reaction and thus maintain conversion to a high rate. Specifications 634,391, 634,580, 679,082 and 746,611 are referred to.
Patent GB-1323628-A (GB)
Title: Method and apparatus for treatment of raw metal edge on blank of  lap side seam tubular body
IPC: B21D51/26
Filed: 1971-08-04
Abstract: 1323628 Making hollow-ware; jointing AMERICAN CAN CO 4 Aug 1971 [8 Oct 1970] 36682/71 Headings B3A and B3V A can &c. with an adhesively-bonded lap side seam has the raw metal edge of the inside lap coated in a preliminary operation before the seam is formed. Cans of elliptical, rectangular, polygonal or circular cross-section may be formed by first applying adhesive 18, Fig. 1, to one margin 20. The blank is then formed to semitubular shape and the raw edge 28 at the opposite margin 22 is passed through the peripheral groove of a coating roller 30. Next the coating 26 is dried over a burner 48 and the blank is then given tubular form 14 before being subjected to a bumper 52. A stripe 60, Fig. 1 and Fig. 5 (not shown), and top coat may then be provided over the coating 26, which may be an epoxy phenolic in an oxygenated soot-free solvent solution.
Patent GB-1401536-A (GB)
Title: Hat embodying a container
IPC: A42B3/04
Filed: 1972-08-07
Abstract: 1401536 Head gear J I GERESIC 7 Aug 1972 [6 Aug 1971 2 Dec 1971] 36688/72 Heading A3V A hard hat 56 comprises a crown and a brim in the form of a peak above which is formed a hollow container defined by spaced walls 67', 69, the wall 67' being integral with a surface 67 of the crown, the container housing a rectangular receptacle 60 held in place by a bottom flange 77 and closed at the top by a resilient plug 74. A further receptacle 59 may be located in a protrusion 57 formed at the back of the hat 56. In an alternative embodiment the crown of the hat has a brim completely surrounding it and a ring shaped container is formed above the brim. The container is divided by partition walls each compartment so formed having its own individual cover.
Patent GB-1523294-A (GB)
Title: Treatment of leather with a levelling agent
IPC: D06P1/607
Filed: 1975-09-08
Abstract: 1523294 Dyeing leather SANDOZ Ltd 8 Sept 1975 [10 Sept 1974] 36811/75 Heading D1B Chrome-tanned or re-tanned leather is treated prior to dyeing or during dyeing with a levelling agent of formula: in which R 1  is a C 12-24  alkyl radical, R 2  is C 2-4  alkylene, the R 3  S independently are -C 2 H 4 -O- or -C 3 H 6 -O-, and the sum of X 1 +X 2 +X 3  is 10 to 60, the dyes employed being a mixture of anionic and/or direct dyes which may have differing degrees of affinity for the leather. Preferably 0.5 to 5% by weight based on the shared weight of the leather, of levelling agent is used, which levelling agent may be the condensation product of aminopropyl- or aminoethyl-behenylamine, aminopropyl- or aminoethyl - myristylamine, aminopropyl- or aminoethyl - stearylamine with ethylene oxide in a mol ratio of approximately 1:30.
Patent GB-1443556-A (GB)
Title: Arc-welding apparatus-
IPC: B21D19/00
Filed: 1973-08-03
Abstract: 1443556 Tube plate arc-welding apparatus BABCOCK & WILCOX Ltd 3 Aug 1973 [3 Aug 1972] 36939/73 Heading B3R An arc-welding apparatus for welding tubes 7 to a tube plate 1 at respective apertures 6 therein, has a rotary member 2 which carries a welding head 3 and a retractable centring pin 66 for aligning the axis of rotation of the member 2 with the axis of the aperture 6, the member 2 engaging the tube plate 1 via a non-rotary annular ring 5 having a tripod of feet 31 capable of indenting the tube plate surface. The other end of member 2 is engaged by a second non- rotary member 25 which is movably supported by means 4 such as vertical and horizontal carriages 10, 9 for aligning the rotary member 2 and a thrust is applied through the rotary member 2 on to annular member 5, to cause the feet to indent the tube plate surface, by means such as turnbuckle mechanism 63 acting on telescopic parts 61, 62 of member 2. When the thrust is applied annular member 5 is centred on member 2 by a centring bearing arrangement 36, 41, 42, Fig. 3. Welding head 3 is displaceably and adjustably mounted by a system of levers 45, 47 springs 51, 54 and screws 49, 52 on member 2 and is displaced to one side when the centring pin is extended. Member 3 may be driven rotatably by motor 29, the motor and supporting structure 4 being counterbalanced by weight 83. The welding may be TIG using filler wire from reel 74 on member 2. Shielding gas coolant and electric leads may be carried in pipes in sheath 71 passing through rotary fitting 72.
Patent GB-1178226-A (GB)
Title: A chromatographic column with controlled heating.
Inventor: HADERKA STANISLAV
IPC: G01N30/30
Filed: 1968-08-02
Abstract: 1,178,226. Temperature control for chromatography columns. CESKOSLOVENSKA AKADEMIE VED. 2 Aug., 1968, No. 37009/68. Headings B1L and B1X. [Also in Divisions Gl and G3] Temperature control means for electrically conducting chromatography column 1 comprises a pair of current clamps 2, 6 and a pair of voltage clamps 7, 8. The column resistance, connected through the voltage clamps together with resistors 4, 5, 9, 10, 11 and 12, forms a double bridge so that, when the column temperature changes, causing a change in column resistance, power amplifier 16 amplifies the a.c. which appears across junctions 14, 15. This current is rectified and transmitted through transductor 18 thereby controlling the primary voltage of transformer 3, and hence the heating current, passed by current clamps 2, 6 to column 1. If desired, the output of amplifier 16 may also be made to control other regulating elements, e.g. thyristors or thyratrons, as well as transductor 18, and the resistors in the double bridge may be replaced by impedances.
Patent GB-523020-A (GB)
Title: Improvements in or relating to mountings for vibratory bodies such as engines
IPC: B64D27/04
Filed: 1938-12-22
Abstract: 523,020. Aircraft-engine &c. mountings. STEVENS, A. H. (Wright Aeronautical Corporation). Dec. 22, 1938, No. 37295. [A Specification was laid open to inspection under Sect. 91 of the Acts. July 10, 1939.] [Class 4] [Also in Group XXXII] A mounting for a vibratory body, such as an engine, comprises a structure spaced from the body and a number of elastic devices arranged between them and acting in effect as if supporting the body at its centre of gravity, the structure and devices being disposed to one side of a vertical plane through that point. As shown, an engine 10, Figs. 1 and 3 is mounted by means of four equally spaced spring sets on a mounting ring 13. Each spring set comprises a spring 14 the axis of which intersects the engine axis at an angle # at a distance X<1> forward of the engine centre of gravity, a spring 15 parallel to the engine axis, and springs 16, 17 extending in opposite directions parallel to a tangent to the ring 13. The mounting blocks 11 to which the groups of springs are connected are arranged at a certain radius m at a calculated distance a behind the centre of gravity. In a modification, the unit is mounted on a plurality of units each comprising a pair of rubber annuli 20, Fig. 5, bonded to a central plate 22 fixed to the engine 10 by a bolt making an angle # with the engine axis. The outer faces of the rubber annuli are bonded to plates 26 connected by bolts 28 and fixed to the mounting ring 13. In a further modification each unit comprises a rubber cylinder, the axis of which is normal to a line making an angle # with the engine axis. This cylinder is enclosed by a sleeve fixed to the engine and a bolt passing through the axis of the cylinder is fixed to the mounting ring. In a still further modification, an annular channel fixed to the engine facing inwards is connected by annular rubber rings to an annular tongue which is at right angles to a line at an angle # to the engine axis.
Patent GB-623821-A (GB)
Title: Reagent for testing for acetone
IPC: G01N33/64
Filed: 1946-12-19
Abstract: The subject-matter of this Specification is identical with that described in Specification 580,778.  Specification 524,426 is referred to.
Patent GB-1200282-A (GB)
Title: Production of toluene diisocyanates
IPC: C07C/
Filed: 1968-08-06
Abstract: 1,200,282. Toluene diisocyanate. WYANDOTTE CHEMICALS CORP. 6 Aug., 1968 [8 Aug., 1967], No. 37550/68. Heading C2C. A toluene diisocyanate product containing a substantial amount of polymeric isocyanates is prepared by reacting phosgene and toluene diamine in an inert organic solvent to produce a product containing toluene diisocyanate, polymeric isocyanates and said solvent, removing a major proportion of said solvent and heating the product for a period of at least ¢ hour at a temperature of at least 130‹ C. Apparatus for carrying out the process is described with reference to the drawing (not shown).
Patent GB-1447597-A (GB)
Title: Pentenenitrile isomers
IPC: C07C253/00
Filed: 1974-08-28
Abstract: 1447597 Isomerization process E I DU PONT DE NEMOURS & CO 28 Aug 1974 [29 Aug 1973] 37606/74 Heading C2C The isomer ratio of cis-2-pentenenitrile to trans-2-pentenenitrile in a mixture containing cis - 2 - pentenenitrile, trans - 2 - pentenenitrile, 3 1 -pentenenitrile and, optionally, 4 - pentenenitrile, the cis-/trans-2-pentenenitrile ratio not being at the equilibrium ratio, is altered by bringing the mixture closer to the equilibrium cis-/trans-2-pentenenitrile ratio while effecting substantially no isomerization of 3-pentenenitrile to 2-pentenenitrile, in a process which comprises contacting the mixture of pentenenitriles at a temperature of 25‹ to 200‹ C. with from 0À1 to 50% by weight, based on the total reaction mixture, of a catalyst composition consisting essentially of a Lewis acid and a Lewis base, the mole ratio of the Lewis acid to Lewis base being from 1 : 5 to 5 : 1.
Patent GB-1041277-A (GB)
Title: 13-alkyl steroids related to oestradiol
Inventor: HUGHES GORDON ALAN
IPC: C07J7/00
Filed: 1961-10-19
Abstract: Novel steroids of the general formula <FORM:1041277/C2/1> wherein the lines connecting R1, R2, OH and H to the steroid nucleus have no configurational significance, RO represents a hydroxy, alkoxy or acyloxy group, R1 represents an alkyl group having at least 2 carbon atoms, R2 represents an unsubstituted or substituted alkyl, alkenyl or alkynyl group (a suitable substituent is methoxy) trans to R1, ring C is saturated or contains an ethylenic bond terminating at the 9-position, C:D ring junction is in the trans configuration, any hydrogen at the 8-position is anti to the hydrogen at the 14-position and any hydrogen at the 9-position is trans to that at the 8-position, are prepared by reacting the corresponding 17-keto-steroids with an organo-metallic reagent providing the group R2 and, if necessary, esterifying (or etherifying) a 3-hydroxy group contained in the product; by reducing steroids of the above general formula having an unsaturated C ring and R2 representing unsubstituted alkyl with alkali metal in liquid ammonia to form the corresponding compounds in which the C ring is saturated; or by reducing steroids of the above general formula having 9(11)-unsaturation and R2 has the above significance by catalytic hydrogenation in which case any unsaturated R2 group becomes saturated; or by selectively reducing steroids of the above general formula wherein R2 represents an unsubstituted alkenyl or alkynyl group to form the corresponding steroids wherein R2 represents an unsubstituted alkyl or alkenyl group by selective catalytic hydrogenation; or by isomerizing steroids of the above general formula having 8(9)-unsaturation to the corresponding steroids having 9(11)-unsaturation with acid.  The above processes may be modified in that a 13b  - alkyl - 17a  - ethynyl - 18 - nor - oestradiol reactant is prepared by oxidizing a corresponding 13b -alkyl-18-nor-oestradiol to the corresponding 17-keto compound, etherifying this compound to give the corresponding 3-substituted or unsubstituted alkyl ether-17-keto compound, and ethynylating the ether with an ethynylmagnesium halide.  By "alkoxy" is meant the alcoholate radical derived from an alcohol such as an alkyl alcohol where the alkyl group may be substituted by a methoxy or hydroxy group.  Examples of alkoxy and acyloxy groups which may be present at the 3-position in the first general formula above are methoxy, ethoxy, methoxymethoxy, hydroxyethoxy, glyceryloxy, benzyloxy, acetoxy and benzoyloxy groups. Suitable organo-metallic reagents are Grignard reagents, lithium alkyls and lithium, sodium and potassium acetylides and carbides. The above formula includes all states of resolution except the resolved 13a -enantiomer.