baber/WOPTO huggingface dataset:
Patent GB-157137-A (GB)
Title: Improvements in crushers
IPC: B02C2/06
Filed: 1921-01-08
Abstract: 157,137. Smith Engineering Works, (Assignees of Sanborne, E. L.). Nov. 14, 1917, [Convention date]. Crushers with gyratory heads.-A gyratory crusher is provided with means for enabling the position of the crushing-head in the hopper to be adjusted to compensate for wear or to alter the size of the product, and also with means for preventing the entry of dust into, or the escape of oil from, the oiling chamber. In the machine shown in cross-section in the drawing, the hopper A is provided with a crushing-lining A<2> and upper and lower spiders A<6>, A<4> respectively, to which the central shaft A<5> is secured. An eccentric sleeve B<5> rotates upon the shaft A<5> and is driven by the driving-shaft B through bevel-gears B<2>, B<4> which are housed in an oil pocket B<3>. The crushing- head C is free to rotate on the sleeve B<5>, and is provided with a crushing-shell C' which may be removable and connected to the head by bolts C<10>. The head is supported by means of adjusting-screws C<2> on a ring C<1>, which is free to slide on a bearing-ring C<3> which forms the top of the oil chamber B<3>. Thus by means of the screw C<2>, the head C may be raised or lowered on the sleeve B<5> and its position in the hopper adjusted. The head C has a downward extension C<5> around which the ring C' fits closely, and packing-rings are interposed between the sleeve and the ring, and between the ring and the bearing-ring C<3>. Thus the head is free to move up and down without exposing the eccentric sleeve, and oil is prevented from escaping from, and dust from entering, the oil chamber B<3>. Oil is circulated through the sleeve and the oil chamber through pipes D, D<12> by means of a pump.
Patent GB-1495591-A (GB)
Title: Protective covers for cooker top plates
IPC: F24C15/14
Filed: 1975-01-10
Abstract: 1495591 Hot plate covers K U KALKOWSKI 10 Jan 1975 [25 Nov 1974] 1038/75 Heading F4W [Also in Division G1] A protective cover for the top plate of an electric cooker comprises a sheet of heatresistant metal foil having bulges 28, 30 formed therein which correspond in shape, size and spacing to the hot plates of said top plate. The sheet of foil is torn from a roll and pressed by hand against the hot plates to form the cover. The foil is made of aluminium or aluminium alloy. One or, as shown, two strips 36 of a temperature-indicating salt which changes colour at a temperature of approximately 400 C. are applied to the foil so as to extend in use over the hot plates. The salt may be NH 4 MnP 2 O 7 .
Patent GB-1007354-A (GB)
Title: Production of magnesium hydroxide
Inventor: WALDRON GEORGE W
IPC: C01F5/22
Filed: 1963-01-09
Abstract: Magnesium hydroxide is prepared by simultaneously introducing an aqueous magnesium chloride solution and a dolime slurry, which is made by slaking calcined dolomite with aqueous calcium chloride solution, into a reaction zone at a temperature below the boiling point of the aqueous solution in proportions to provide therein more than one mole of calcium hydroxide per mole of magnesium chloride. The reaction may be effected at 40 DEG  to 80 DEG  C. and in a continuous manner.  Calcined dolomite may be staked in aqueous calcium chloride solution of specific gravity at 25 DEG  C. of 1.07 or more. At least 90 wt. per cent of the particles in the slurry may be less than 0.84 mm. in diameter and the slurry may be introduced into the reactor within 90 minutes after staking. Magnesium chloride solutions of less than 3.5 wt. per cent may be added to the reactor at a rate to provide an average residence therein of at least 3 hours, whereas solutions of more than 3.5 wt. per cent may be added at a rate to provide an average residence therein of at least 2 hours.  Part of the mixture leaving the reactor may be recycled to the slaker and magnesium hydroxide may be removed therefrom by sedimentation or filtration prior to recycling. The filtrate may be evaporated to recover dissolved salts, e.g. CaCl2 and the product, after water washing, may be ignited to form periclase.
Patent GB-1365852-A (GB)
Title: Prcess for preparing polyurethane foam
IPC: C08G18/00
Filed: 1973-01-09
Abstract: 1365852 Polyurethane foams MITSUBISHI CHEMICAL INDUSTRIES Ltd 9 Jan 1973 [10 Jan 1972] 1075/73 Heading C3R Polyurethane foams are prepared by the frothing technique by mixing a polyol, polyisocyanate and a catalyst for urethane formation in a helix mixer in the presence of a primary foaming agent and a secondary foaming agent, the primary foaming agent being a liquid which vaporizes in the mixer to produce a primaryfoamed mixture and the secondary foaming agent being a substance which remains in the mixture until secondary foaming is initiated, the supply of the primary foaming agent being initiated before the supply of the other components, whereupon the ratio of the supply rate of the primary foaming agent to the supply rate of the other components at the time of initiation of the supply of the other components (ratio P) is at least 1À5 times the ratio of the supply rate of the primary foaming agent to the supply rate of the other components in normal conditions (defined) (ratio Q) and maintaining the ratio of the supply rate of the primary foaming agent to the supply rate of the other components greater than ratio Q after initiation of supply of the other components until normal conditions can be sustained. The primary foaming agent may be added to the mixer using a two-line or one-line system. In the two-line system, the two supply lines operate at different times, one line initiating the supply and continuing to a point beyond the supply of the other components and the other line supplying primary foaming agent simultaneously with the other components and at a rate which provides continuous frothing in normal conditions. In the one-line system the primary foaming agent is supplied at an initially increased feed rate and after a predetermined period the feed rate is decreased to the normal rate. Conventional materials are used to prepare the polyurethane foams.
Patent GB-574243-A (GB)
Title: Improvements in tool supporting shelves or trays for furnaces
IPC: F27D5/00
Filed: 1944-01-20
Abstract: 574,243. Furnaces. BRAYSHAW FURNACES & TOOLS, Ltd., BRAYSHAW, S. N., NEWMAN, F. C., and RUSHTON. F. Jan. 20, 1944, No. 1108. [Class 51 (ii)] A tool-supporting tray for use with twochambered furnaces and applicable for the treatment of high-speed tools and for other purposes, comprises a sloping shelf having several stops so arranged that tools of different lengths may be accommodated on the shelf without projecting too far in front of it. Figs. 1, 2 show the rearwardly sloping shelf A with stops a ... a attached to the frame B of the two-chambered furnace C<1>, C<2>. When in use, the furnace-operating tongs or other tools are supported on a removable rest E<1> mounted in a socket e in the shelf E. Various rests E<1> are provided and those not in use are stored on a carrier F. Shelves G receive the work when it is withdrawn from the furnace. In a modification, the.tool-supporting tray is fixed to a stand D to form a self-contained unit separate from the furnace.
Patent GB-573623-A (GB)
Title: Improvements relating to protective coating compositions for metallic surfaces
IPC: C09D5/08
Filed: 1942-01-28
Abstract: 573,623. Non-drying compositions ; lubricants. STANDARD OIL DEVELOPMENT CO. Jan. 28, 1942, No. 1170. Convention date, Jan. 2, 1941. [Classes 91 and 95] A non-drying composition for protecting metal surfaces against corrosion comprises a mineral or vegetable oil or wax base, degras, an alkali metal salt of oil-soluble sulphonic acids made by treating petroleum with concentrated sulphuric acid and from 0.25 to 5 per cent. of an organic fatty or naphthenic acid salt from organic nitrogen base. The base may be a primary, secondary, or tertiary alkyl or aryl amine, a mixed aryl and alkyl amine or an alkylolamine or an N-alkyl or N-aryl derivative or a cyclic ether thereof or a heterocyclic nitrogen compound of the pyridinequinoline group. Salts specified are morpholine oleate and naphthenate, diethylamine, diethylethanolamine and dicyclohexylamine naphthenates, diethylethanolamine and dicyclohexylamine oleates and the morpholine, diethylethanolamine and dicyclohexylamine soaps of oxidized wax fatty acids. The degras may be unpurified wool fat or a mixture of wool fat and cod oil to which tallow and a neutral soap may be added. The composition may also comprise a volatile solvent such as alcohol, gasoline or kerosene.
Patent GB-815341-A (GB)
Title: 19-nor-delta-4-androsten-3-one-17-beta-ol hexahydro-benzoate and method for manufacturing same
IPC: C07J1/00
Filed: 1957-01-11
Abstract: The invention comprises 19-nor- D 4-androsten - 3 - one - 17b  - ol hexahydrobenzoate (19-nor-testosterone hexahydrobenzoate) of the formula <FORM:0815341/IV (b)/1> and its preparation by reacting 19-nor- D 4-androsten - 3 - one - 17b  - ol with hexahydrobenzoic anhydride.  In an example, the reaction is carried out in pyridine at reflux temperature; after completion, the excess hexahydrobenzoic anhydride is decomposed to the acid, which is found to be more readily separable from the desired 19-nor-testosterone hexahydrobenzoate.  19-nor-Testosterone is obtained by the action of methanolic hydrochloric acid upon the 3-methyl ether of 1,4-dihydroestradiol-17b , which is prepared by reducing with lithium in liquid ammonia the 3-methyl ether of estradiol-17b , obtained in turn by methylating estradiol-17b  with dimethyl sulphate in aqueous sodium hydroxide.
Patent GB-126386-A (GB)
Title: Improvements in or relating to Guns carried by Aircraft.
IPC: F41A19/05
Filed: 1917-01-25
Abstract: 126,386. Vickers, Ltd., and Savage, H. A. Jan. 25, 1917. Machine guns; fire between aircraft propeller blades, controlling.-Consists in interposing a trip-device in the parts for actuating the firing- lever so that the firing-lever is permitted to return to normal position immediately the gun is fired. In the form shown, a spring-controlled trip-lever B is mounted on a pivot b on a member B<1> which is rocked on a pivot b<1> by the usual cam mechanism on the propeller shaft through the medium of a rod B<3>. When the member B<1> is rotated in clockwise direction, the firing-lever A<3>, which is shown in normal position, is turned on its pivot a<3> by the action of the trip-lever to operate the sear A<2> to fire the gun. The firing-lever is immediately returned to normal position either by a spring or by its re-engagement with the sear A<2> when the lock returns after recoil, such return being permitted by the trip-lever. The spring above the trip-lever allows the lever to yield when the member B<1> is returned to the position shown in Fig. 1. Specification 124,486 is referred to.
Patent GB-907572-A (GB)
Title: A mechanical toy
Inventor: RUDOLF PAUL
IPC: A63F9/14
Filed: 1961-01-12
Abstract: 907,572. Toys. STIRNEMANN, G. Jan. 12, 1961, No. 1296/61. Class 132 (3). A mechanical toy comprises a car movable on a platform 1 and propelled by one or more magnets 5 or a carriage 6 below the platform and driven electrically, the direction of movement being adjusted by means of a stationary steering member, one or more magnets 4 on the car being in juxtaposition to the magnet or magnets on the carriage, the magnetic fields of the magnets coupling the car and carriage by their wheels 7, 8 and 9, 10 contacting the upper and lower surface respectively of the platform, for a rolling movement in unison, the steering member being in operative connection through a flexible shaft 23 leading to the carriage and to at least one pivotally mounted wheel of at least the car or carriage such that this wheel may be pivoted by means of the steering member. Driving mechanism on electric motor 43 on the carriage 6 drives the wheels 10 through gearing 44 to 47. Current from a control box 48, within a shrouded structure 3 supporting the platform 1, passes to a brush 55, slip ring 56, shaft 30, the flexible shaft 23, a shaft 22, a bush, to the motor 43, then through the carriage chassis, the wheels 10, the platform 1, the structure 3 to the box 48. A pedal 49 extending from the box and connected to a variable resistance varies the speed of the car. A lever 51 connected to a reversing switch 50 reverses the direction of drive of the motor. Steering mechanism. The steering wheel 36 rotates, through shafts 35, 33 and pairs of bevel wheels 34, 38 and 32, a shaft 30 connected to the flexible shaft 23 which connects with the shaft 22 connected to a magnet 24 on the carriage and a pinion 21. The pinion 21 drives through gears 18 to 20 a gear on the shaft of a bell-crank lever, one arm of which is the stub axle of the wheel 9 the other arm connects with the bell crank lever of the other wheel 9. Opposite the magnet 24 and on the car is a magnet 25 connected similarly by a pinion 26 and gears 27-29 to steering mechanism for the wheels 7. Alternatively the flexible shaft 23 may connect with the pinion 26 to steer the wheels 7 the means for driving the wheels 9 being omitted. To prevent applying a large torque to the flexible shaft, the shaft 35 drives through a slip clutch comprising the bevel gear 38, free on the shaft, and clamped between discs 39 and 40, the disc 40 being forced against the gear by a spring 41 abutting a collar 42. The shaft may also have stops limiting rotation.
Patent GB-1217082-A (GB)
Title: Organosilsesquioxanes and a method for making them
Inventor: MERRILL DUANE FRANKLIN
IPC: C08G77/06
Filed: 1968-01-09
Abstract: 1,217,082. Organosilsesquioxanes. GENERAL ELECTRIC CO. 9 Jan., 1968 [12 Jan., 1967], No. 1308/68. Heading C3T. An organosilsesquioxane comprising 75- 100 mole per cent of chemically combined CH 3 SiO 1 . 5  units, 0-25 mole per cent of C 6 H 5 SiO 1 . 5  units and 0-5 mole per cent of (CH 3 ) 2 SiO units and having the average unit formula wherein R<SP>1</SP> is a C 1-8  alkyl radical, a is 0À7-1À05, b is 0-0À25, and a+b is 1À0-1À05, c is 0À02- 0À08 and d is 0À005-0À06, may be prepared by adding with agitation to an organoalkoxysilane material in an organic solvent at least 1À5 moles of water per mole of silane in the presence of a cosolvent sufficient to produce a substantially homogeneous hydrolysis product mixture, then adding further water, to form a heterogeneous mixture from which the organic phase is recovered and stripped of volatiles, the organoalkoxysilane material being (A) a mixture of methyldialkoxyhalosilane and a minor amount of methyltrialkoxysilane, or (B) a mixture of at least 75 mole per cent of (A) with up to 25 mole per cent of phenyltrihalosilane, or (C) the product from methyltrihalosilane, containing up to 5 mole per cent of dimethyldichlorosilane and up to 25 mole per cent of phenyltrihalosilane and 2-2À6 moles per mole of silane of an aliphatic monohydric alcohol. In Example 1 CH 3 SiCl 3  is reacted with isopropanol, and the product mixture in toluene is agitated with aqueous acetone, and subsequently with water, and the organic layer is separated and concentrated; in Example 2 the aqueous acetone is added to a CH 3 SiCl 3 /C 6 H 5 SiCl 3  mixture in toluene; in Example 3 aqueous 1: 4-dioxane is added to CH 3 Si(OCH 3 ) 2 Cl/CH 3 Si(OCH 3 ) 3  in xylene; in Example 4 CH 3 SiCl 3 /C 6 H 5 SiCl 3  is added to aqueous diethylether. The products are powdered; that of Example 1 is used as a binder, or mixed with SiO 2  filler and lead acetate.
Patent GB-580083-A (GB)
Title: Improvements in control systems for direct current motors
IPC: B60L15/04
Filed: 1942-01-30
Abstract: 580,083. Control of D.C. motors. MATERIEL ELECTRIQUE, S. W. Jan. 30, 1942, No. 1319. Convention date, Dec. 30, 1940. Drawings to Specification. [Class 38 (iii)] Series motors are grouped in parallel circuits each containing several motors and the field of each motor is divided, part being adjacent its own armature, and the other part being in series with similar parts of the other motors and traversed by the total current of the whole group. Field regulation is effected by shorting the series chain of fields by a variable resistor or a variably excited generator. The series chain of fields may be separately excited by a generator the field of which is traversed by the whole or a proportion of the total current of the armatures. Regeneration can be obtained by providing a separately excited field on the generator. The Specification as open to inspection under Sect. 91 comprises an arrangement wherein the whole of the motor fields are connected in a series-chain through which is passed the sum of the currents in the parallel branches which solely comprise the motor armatures. This does not appear in the Specification as accepted.
Patent GB-246992-A (GB)
Title: An improved waste paper basket
IPC: A47G29/06
Filed: 1925-01-16
Abstract: 246,992. Marrs, H. Jan. 16, 1925. Baskets.-A waste-paper basket has an insertion opening in the side covered by an inwardly movable pivoted flap b, an outstanding lip c being provided at the lower edge of the opening to catch stray bits of paper. The basket is covered by a flanged lid a.
Patent GB-1531987-A (GB)
Title: Thickeners based on polysaccharide gums
IPC: C09K8/62
Filed: 1977-01-13
Abstract: 1531987 Thickener compositions based on xanthomonas gums GENERAL MILLS CHEMICALS Inc 13 Jan 1977 [15 Jan 1976] 01378/77 Heading C3U A thickener blend comprises 5-70 wt. per cent of xanthomonas gum and 95-30 wt. per cent of a hydroxyethyl ether of locust bean gum. The hydroxyalkyl ether is preferably the hydroxypropyl or hydroxyethyl ether, e.g. derived by substitution of 0À05 to 0À5 moles of alkylene oxide per mole of locust bean gum.
Patent GB-1006185-A (GB)
Title: Improvements in or relating to heat resisting coating compositions and methods of applying them to basic refractory surfaces of furnaces
Inventor: DEMAISON RAYMOND JULES
IPC: C04B35/01
Filed: 1963-01-11
Abstract: A refractory composition which may be slurried with water and sprayed on to hot furnace walls comprises 82-92 parts by weight of chrome ore, from 1-6 parts of free iron oxide (present in the chrome ore are added) 10-40 parts of free magnesia, 6-12 parts of a binding agent, 0.25-5 parts of a dispersing agent/1 part of binder and 1-5 parts of a suspending agent, the particle size of the composition being 20-40% + 100 A.S.T.M. mesh, 40-55% + 200 mesh and 45-60% - 200 mesh.  The chrome ore must contain an amount of chromite which exceeds the amount of any other single constituent. Binders specified are sodium silicates. Dispersing agents specified are conventional dispersers, metal salts or amyl sulphonic acid and sulphonated petroleum products.  Suspending agents specified are clay and carboxymethyl cellulose. Specification 833,026 is referred to.
Patent GB-109044-A (GB)
Title: Improvements in and relating to Holders for Fountain Pens, Pencils and the like Articles.
Inventor: VINCENZO BERTOLOTTI
IPC: B43K23/00
Filed: 1917-01-30
Abstract: 109,044. Bertolotti, V. Aug. 25, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 108,848. Safety-pins and safetypin fastenings.-The attachment described in the parent Specification is modified so as to be particularly adapted to be secured beneath the collar of a coat or other garment, the pen, pencil or the like 4 being slipped through two or more elastic rings 2, which are connected to the safetvpin 1 so as to be co-axial with one another. The rings may be carried in loops 1<11> formed in the rear arm of the safety-pin, or they may be connected to the pin by any of the devices described in the parent Specification. The rings may be circular, elliptical, ovoid or heart-shaped, and may be provided with one or more transverse elastic members 2<1>, Fig. 3. The narrow end 2", Fig. 5, of the heart-shaped ring may be thickened to receive the loop 1<11> to prevent the loop from rubbing against the article.
Patent GB-412308-A (GB)
Title: Improvements relating to convertible bed-settees and the like
IPC: A47C17/22
Filed: 1933-01-17
Abstract: 412,308. Bed-settees. CRAM, S.A., 69, York Place, Edinburgh. Jan. 17, 1933, No. 1512. [Class 52 (ii).] In a convertible bed-settee or bed-chair, the lever mechanism for attaching the seat to the settee frame comprises two pairs of toggle levers, one lever of each pair being pivotally attached, one below the other, to a bracket member attached to the frame, and being toggle jointed to. its associated lever which is pivotally attached to a bracket member attached to the seat, and the lever which is toggle jointed to the higher of the two levers attached to the frame bracket member is pivotally attached to the seat bracket member nearer to the front thereof (in the closed position) than the other lever which is pivoted to the seat bracket. The settee frame comprises side members 6, Fig. 1, a back 7 and a front board 8. The bed frame comprises pivoted sections 9-12, the inner section 9 being pivoted to a bracket 14. The rear intermediate section 10 is supported on a strut 17 pivoted at 18 in the settee frame. The seat 20 is supported by links 21 from sections 11 and 12 of the bed-frame, and is provided with supporting legs 24. The seat is connected to the settee frame by lever mechanism comprising a bracket 28 attached to the frame, and a bracket 31 attached to the seat, and connected to the bracket 28 by a pair of toggle levers 32, 33, and 34, 35. The levers 32 and 33 are toggle jointed at 36, Figs. 3 and 5, and the lever 32 is pivoted to the bracket 28 at a point 37 in rear of and below the pivot 38 of the lever 34. The lever 33 is pivoted at 39 to the bracket 31 at a point which in the folded position shown in Fig. 3 is in rear of and above the pivot 40 of the lever 35. The levers 34, 35 are toggle jointed at 41, and the lever 34 is extended beyond the pivot 41 to provide an extension 34<a> which is pivoted at 42 to the lever 33. This construction ensures that the front board 30 of the seat rises clear of the front 8 of the settee on unfolding. Figs. 7 and 9 show a modified form of construction, in which the pivot 38 of the lever 34 is vertically above the pivot 37 of the lever 32, and the toggle levers are pivoted to a seat bar 31<a>. The levers 33 and 35 are straight. A clip 44 which holds the strut 17 against lateral displacement is provided on the bracket 28.
Patent GB-104192-A (GB)
Title: An Improved Appliance for Polishing or Veluring Felt Hats.
Inventor: WEBB FRANK
IPC: A42C1/08
Filed: 1916-02-02
Abstract: 104,192. Webb, F., and White, M. Feb. 2, 1916. Pouncing and finishing.-A hat is supported during polishing &c. by a rubber roller e on a support f, which is held on rubber cushions in a trough member a on a fixed arm h. The roller is covered by a smooth cloth d, which is secured by clamping-plates b and screws c. In a modification, the roller is replaced by a bent sheet of rubber.
Patent GB-945643-A (GB)
Title: Improvements relating to nuclear power plants
IPC: F22G1/16
Filed: 1960-01-15
Abstract: 945,643. Nuclear power plant. A. VANDEGHEN, and N. SALIER. Jan. 15,1960 [Jan. 16,1959; March 13, 1959 (2)], No. 1606/60. Heading G6C. In a nuclear power plant, the turbine 33 is supplied with steam from the vaporizer 32 heated from the reactor 31. Superheating is effected by the superheater SH. If the reactor should cease operating, the plant may continue operating by heating SH with a conventional feed so as to operate it as a boiler. To permit instantaneous operation of SH as a boiler the hot water reservoir 25 is provided in series with the reactor and is connected to SH directly only in an emergency. In an alternative form, 25 may be heated by saturated steam from the turbine.