baber/WOPTO huggingface dataset:
Patent GB-994064-A (GB)
Title: An acidic composition for use as a catalyst for methylenation reactions involving cellulose
IPC: C08B15/00
Filed: 1961-08-18
Abstract: A composition suitable for use as a catalyst in the methylenation of cellulosic fibres with formaldehyde or other aldehydes at temperatures of 240-300  DEG F. comprises an aqueous solution containing hydrogen peroxide or an alkali metal persulphate and a polyvalent metal salt of a Lewis acid, e.g. magnesium, calcium, barium, zinc or strontium nitrate or chloride, chromium acetate, chromic chloride, nickel chloride, aluminium chloride, zirconium oxychloride or magnesium sulphate.ALSO:Cellulosic textile materials, e.g. cotton and regenerated cellulose fibres alone or in admixture with synthetic fibres such as cellulose acetate, acrylic, methacrylic, nylon, polyolefin or polyester fibres, are crease-proofed by methylenation by a process comprising impregnating them with an aqueous solution containing formaldehyde or another aldehyde such as glyoxal, a -hydroxy-adipaldehyde or glutaraldehyde and then curing them by heating in the presence of a catalytic composition comprising an aqueous solution containing hydrogen peroxide or an alkali metal persulphate and a polyvalent metal salt of a Lewis acid, at a temperature of 240 DEG -300 DEG F. for 3-7 minutes.  The aldehyde may be produced from a compound which upon heating liberates an aldehyde, e.g. methylol ketones, paraformaldehyde and trioxane. The polyvalent metal salt of the Lewis acid may be magnesium, calcium, barium, zinc or strontium nitrate or chloride, chromium acetate, chronic chloride, nickel chloride, magnesium sulphate, aluminium chloride or zirconium oxychloride.  The aqueous solution of the catalyst may be present in the aqueous solution of the aldehyde which may also contain methylol ethylene ureas, p  methlolacetylene diureas, methylol dihydroxyethylene ureas or methylol triazones, acrylic emulsions and wetting agents, e.g. alkaryl polyether alcohols.  The process may comprise mechanically treating fabrics to alter the shape and relative disposition of the yarns, e.g. by calendering, pleating or ruffling.
Patent GB-761729-A (GB)
Title: Improvements in or relating to fluid pressure motors of the oscillating paddle type
IPC: F15B15/12
Filed: 1954-10-18
Abstract: 761,729. Oscillating-vane motors. O'SHEI, W. E. Oct. 18, 1955 [Oct. 18, 1954], No. 29897/54. Class 110 (2). The vane is formed of a central spacer 3, two sheets 11, 1 of rubber or similar material, and outer clamping plates 2, and has projections 20 in the outer plates and/or the spacer, which press into the rubber to hold it in position. Co-operating holes 21 are provided as shown. The packing sheets may be joined together at the tips and may be made of polyvinyl chloride. The spacer may be made up of a series of plates. Specifications 672,671, 672,678, 672,680 and 672,682 are referred to,
Patent GB-720379-A (GB)
Title: Improvements in or relating to apparatus having means for guiding or conveying articles therethrough
IPC: G07F11/54
Filed: 1952-12-19
Abstract: 720,379. Sales and sale service. SCHOFIELD, C. S., and CHURCHILL, H. W. S. Dec. 19, 1952, [Dec. 20, 1951], No. 29935/51. Class 116. In an article dispensing machine the article moving means comprises an angularly movable operating member adapted to co-operate with a replacement article inserted through an inlet opening in the top part of the chamber so that in the absence of such an article no movement can be imparted by the operating member to the articles and thus no article is delivered through the outlet opening. As shown in Fig. 1, a container with insulated walls and lid houses a number of bottles 10 the necks of which are supported by members 8 in a rotatable cage 4 and the bases are supported by members 16 enclosed by bands 17 so that the bottles form an helical path leading to a ramp 11 providing a channel down which the bottles pass in a helical path to the delivery outlet when a sector 24 is operated. The triangular sector 24 has a dependent member 26 for contacting a bottle and a handle 25 for rotating the sector and the cage to deliver a bottle. The handle is then returned to the initial position and a further bottle inserted through a hole in the lid having the bottle shape before the apparatus can be used to deliver another bottle, alternatively the sector may also be provided with a hole having the bottle shape. The bottle when leaving the ramp strikes a member to pivot a flap which normally closes the exit. The member 26 has a pivoted pawl 30 which is rotated by a member during the releasing movement of the sector into the path of a stop 32 to prevent further rotation of the cage. A cooling unit 33 is provided at the centre of the cage or the refrigerant may be in a compartment covering the whole of the floor. Adjustable vertical sectors may be placed between the bottles. Two or more hinged flaps may be provided at the inlet or outlet to provide air traps. There may be one or more cold chambers or a prechilling and storage chamber: there may be combined cages or cold chambers. The delivered bottle need not be removed at once but retained in a delivery tray holding several bottles and having a central ridge.
Patent GB-1041487-A (GB)
Title: Automatic toilet unit
IPC: E03D9/08
Filed: 1964-07-29
Abstract: 1,041,487. Bidets. M. H. CONGDON. July 29, 1964, No. 30077/64. Heading A4N. [Also in Division El] A sanitary fixture comprises a hinged toilet seat operable as a bidet and having a timer controlled supply of warm water and warm drying air. As shown, the seat 18 is formed as a hollow air duct and contains flexible water pipes 24 and 22 connected to fore and aft delivery nozzles 28 and 26. The air is supplied, from a control box containing a fan and heater, through orifices 30 and 32 and enters the seat cavity through an extension duct 20, which is aligned with a supply duct on the top of the box when the seat is down. The control box also contains a thermostatically controlled water heating tank, a thermostatically controlled mixing valve, a radio and loudspeaker and a socket 72 for an electric dry shaver. The control arrangements include a mains switch 64, a start switch 66, a transfer switch 62 for selecting automatic or manual control, a selector switch 68 capable of preventing the automatic control from operating either of nozzles 26 or 28 and switches for controlling solenoid operated valves of nozzles 26, 28 manually. A control circuit is shown and described. Reference has been directed by the Comptroller to Specification 908,384.
Patent GB-468664-A (GB)
Title: Diaphragm valves
IPC: F16K7/12
Filed: 1936-11-05
Abstract: 468,664. Manually - actuated valves. SAUNDERS INVENTIONS, Ltd., and SAUNDERS, P. K. Nov. 5, 1936, No. 30130. [Class 135] A diaphragm valve has a detachable cover 16 formed as a sheet-metal pressing, which is adapted to carry the actuating- mechanism. As shown, the screw 23 is reciprocated by a nut 25 having a flange 31 engaging a ring 32 bearing against a shoulder 33 in the cover. The upper end of the nut is flattened at 27 to engage a pressed handle 26, the skirt 28 of which bears on the inturned edge 30 of the cover, so that the nut is positioned axially. A resilient packing - ring 34 is provided. The actuating head 18 carries fingers 19, which engage the diaphragm 14 when it is in the closed position. In the open position shown, the diaphragm bears against fingers 21 on a pressing welded to the cover. During closing, the fingers 19 pass between the fingers 21. Specifications 321,892, [Class 155], 362,084, 434,664, 434,665, 434,684, 439,701, 442,790, 443,226, and 445,567 are referred to.
Patent GB-593070-A (GB)
Title: Improvements in or relating to aircraft propulsion
IPC: F02K1/12
Filed: 1944-04-05
Abstract: 593,070. Jet - propulsion plant. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 5, 1944, No. 30140/46. Convention date, July 25, 1941. Divided out of 593,022. [Class 110 (iii)] A propulsion jet for aircraft as described in Specification 593,022 has the inlet and exhaust nozzle areas adjustable. In one form, Fig. 5, hinged plates 16, 18 slide between fixed side plates. In a further form the nozzles are made elliptical in section and deformable. The nozzle areas can be adjusted separately or jointly. Specification 593,071 also is referred to.
Patent GB-652520-A (GB)
Title: Oil burner with radial fuel nozzles
IPC: F23D5/00
Filed: 1948-11-19
Abstract: 652,520. Liquid fuel burner. CLARKSON, A. Nov. 19, 1948, No. 30182. Convention date, Nov. 28, 1947.. [Class 75(i)] An oil burner having radial fuel nozzles arranged to deliver gaseous fuel streams into a combustion chamber, a vaporizing chamber placed above and heated by the flames from the nozzles to vaporize oil to provide the gaseous fuel and means defining separate air passages surrounding the discharge ends of the nozzles has the discharge orifice of each nozzle eccentrically arranged to the axis of its associated combustion air passage so that different amounts of air are supplied at different locations to the fuel streams discharged from the nozzles. Liquid fuel is supplied from a pipe 32 on to a retarding surface 34 whence it passes into a chamber 26 where it is vaporized, the vapour passing through orifice 27 into chamber 22 and through nozzles 23 into a combustion chamber 45 of a fire-pot 14. Combustion air passes through an orifice 17 and orifices 29, equal in number and eccentrically arranged to nozzles 23 (Fig. 4), into combustion chamber 45. Additional air, which tends to cool the fire-pot 14 as it passes through an annular space 15, enters the combustion chamber 45 through holes 49. A flange 37 secured in tube 33 at its outer end restricts the amount of air entering the chamber 26. A baffle 36 is located within chamber 26 opposite the discharge end of passage 33. The burner is started by igniting with a torch, through a normally closed opening 43, a pad 41 which is saturated with oil supplied from chamber 26 through a tube 38, a groove 39 and tube 40 and along strip 42. Specifications 590,668 and 592,027 are referred to.
Patent GB-670223-A (GB)
Title: Manufacture of a silica-alumina catalyst
IPC: B01J21/12
Filed: 1949-11-24
Abstract: <PICT:0670223/III/1> A silica-alumina gel type catalyst to be used in the fluidized condition is obtained by preparing a filterable slurry of silica-alumina gel, filtering the slurry, drying the filter cake, classifying the dried gel, for example by washing with water on rake classifiers, with separation of an oversize-containing fraction (above 20 microns) and fines (below 20 microns), recycling the fines into the slurry in an amount of 30-60 per cent of the silica-alumina gel in the slurry and grinding the oversize containing fraction to the size 20-80 microns required for the catalyst.  As shown, a silica-alumina gel slurry is pumped from tank 1 to a filter 4 and the filter cake is dried in rotary drier 5.  The dried gel is discharged to a container 6 and then to a drum-washer 12, a slurry of the product then being discharged to rake classifiers 13, 14 where the gel is washed with a counter-current flow of water and larger particles are separated and delivered to filter 17, secondary drier 18 and grinding mills 19.  The liquid overflow from the classifier contains the fines and is discharged to thickener 16, the fines then being recycled to tank 1.  Fines in the gaseous effluent from drier 5 are separated at 7, slurried with water at 9 and discharged to drum washer 12.  A plurality of washing drums 12 and rake classifiers 13 may be employed and acidic or alkaline material may be added to the wash liquor at various points in the washing apparatus.
Patent GB-1057387-A (GB)
Title: Intermediates for benzothiadiazine dioxides and process for preparing these
IPC: C07D285/30
Filed: 1963-11-12
Abstract: The invention comprises compounds of the formula <FORM:1057387/C2/1> wherein X is a C1- 6 alkoxy, C1- 6 alkylthio or amino group, n is 1, 2 or 3 and R is an alkyl, alkenyl, fluoroalkyl, chloroalkyl or cycloalkyl group, all containing up to six carbon atoms, or an a - or b -naphthyl, benzyl, o-, m- or p-chlorobenzyl, o-, m- or p-(C1- 6 alkoxy) benzyl, b -phenylethyl or m-xylyl group; acid addition salts thereof; and a process for their preparation comprising reacting a nitrile of the formula RS(CH2)n-CN with a C1- 6 alkanol or C1- 6 alkanethiol to form the compounds wherein X is a C1- 6 alkoxy or C1- 6 alkythio group and reacting these compounds with ammonia to form the compounds wherein X is an amino group.
Patent GB-536690-A (GB)
Title: Improvements in rotary internal combustion engines
IPC: F02B53/00
Filed: 1939-11-22
Abstract: 536,690. Rotary engines. LANCASTER, S. D. Nov. 22, 1939, No. 30592. [Class 110 (ii)] Hinged abutments 8 are mounted on end trunnions 16, 17 and make an axial knife-edge contact with a rib 10 on the casing. The abutment chamber 2 is closed when the tip of the abutment is pressed by the rotor into a recess 11 and the inward movement of the rotor is limited by a heel 12 and a stop face 15. Combustion gases under pressure are admitted through a valve 27 which is a disc sliding freely on a sleeve 20 and having a number of perforations which are out of alignment wth perforations 26 in a seating. The valve 27 is opened by the pressure of the incoming gases and is closed by the explosion pressure.
Patent GB-1380628-A (GB)
Title: Access equipment
IPC: B66F11/04
Filed: 1972-06-30
Abstract: 1380628 Mobile lifting apparatus SIMON ENG DUDLEY Ltd 6 June 1973 [30 June 1972] 30632/72 Heading B8H In access equipment comprising a boom assembly 11 pivotally attached at one end to a supporting structure 10 and having a cage or working platform 12 at its other end, the boom 11 being movable to raise the cage or platform 12, a member 16 capable of horizontally supporting a stretcher (not shown) for relative slidable movement is removably attached to the cage or platform and has angular adjustment relative to the latter. There may be two members 16 (Fig. 3, not shown) mounted in diagonally opposite corners of the platform 12. The dimensions are such that a stretcher can be slid from one member 16 to the other.
Patent GB-756293-A (GB)
Title: Improvements relating to pentaerythritol and the process of producing the same
Filed: 1954-10-25
Abstract: Pentaerythritol is prepared by reacting lactonitrile with aqueous formaldehyde or a compound generating formaldehyde on heating under alkaline conditions at a temperature from 0-60 DEG  C. The pH may be kept throughout at 7-12, preferably 8-11, and the temperature at 15-35 DEG  C.  When reaction is complete, the mixture may be neutralized and water evaporated therefrom to crystallize the pentaerythritol.  Alkalization may be effected with, e.g. alkali, alkaline earth, or ammonium hydroxides or tertiary amines. An example is given.  Hexamethylene tetramine, paraformaldehyde, or trioxymethylene may replace the formaldehyde.
Patent GB-1054671-A (GB)
Title: Carrier for the cultivation of plants
Inventor: WEBER LUCIE
IPC: A01G9/10
Filed: 1963-08-02
Abstract: 1,054,671. Seedling containers. L. WEBER. Aug. 2, 1963 [Aug. 7, 1962], No. 30734/63. Heading A1E. A device for use in cultivating plants comprises a body 1 of spongy material having a slot 2 opening into the side wall of the body, a seedling, cutting or seed being inserted into the slot and secured therein by pinching the edges 5, 6 of the slot together. The material of the device may be natural or synthetic sponge. A paste formed from finely sifted earth, manure and water may be incorporated in the spongy material.
Patent GB-1225003-A (GB)
Title: Fastening device
Inventor: SCHUPLIN JEROME THOMAS
IPC: F16L3/233
Filed: 1968-06-27
Abstract: 1,225,003. Strap fastenings. TINNERMAN PRODUCTS, Inc. 27 June, 1968 [27 June, 1967], No. 30744/68. Heading E2B. A strap fastening, particularly for mounting wire bundles, tubing, rod, cables or the like on an apertured support, comprises a strap 8 of polymeric material which is formed with integral enlarged end cap portions 12, 50, the former including a pin member which projects to one side of the strap and the latter including a socket member in the form of a U-shaped element 58 which projects to the other side of the strap, the socket member being adapted to receive the pin member after the strap has been flexed around an article, e.g. a bundle of wires W, and including inwardly facing camming portions 62, 64 which co-operate with shoulders 40, 42 formed between a head portion of the pin and an approximately rectangular shank portion of the pin so that upon insertion of the pin the element 58 is expanded as the head portion is forced past the camming portions 62, 64, the latter subsequently coming into latching engagement with the shoulders 40, 42 to retain the pin. The fastening is preferably used in conjunction with a support plate P which is apertured to receive the socket element, expansion of the latter upon insertion of the pin causing the fastening to be retained on the plate. The generally rectangular shank of the pin preferably comprises two opposed flat sides and two opposed rounded end edges one of which is shown at 34, these edges co-operating with the arcuate ends of a slot (52, Fig. 1, not shown) in the cap portion 50 via which the pin enters the U-shaped element 58.
Patent GB-1509358-A (GB)
Title: Compositions based on phenol-formaldehyde novolak oligomers
IPC: C08L61/10
Filed: 1976-07-23
Abstract: 1509358 Phenol-formaldehyde novolak compositions MOSKOV KHIMIKO-TEKHNOLOGICHE INST IM DI MENDELEEVA 23 July 1976 30780/76 Heading C3R A composition comprises a phenolformaldehyde novolak oligomer and from 10-10 p.b.w. per 100 p.b.w. of said oligomer of a hardening agent which is an adduct of hexamethylenetetramine with a mono- or poly-hydroxybenzene or with an alkyl derivative thereof and having the general formula where R is selected from hydrogen, hydroxyl, methyl or ethyl, and n is 1 or 2, or a mixture ofsuch adducts, and optionally boric acid or a salt thereof in an amount of from 1-10 p.b.w. per 100 p.b.w. of the hardening agent. The compositions may also contain conventional components, e.g. fillers such as sawdust, ground coke, graphite, quartz powder, kaolin, ground mica, microasbestos, powdered metals, glass fibres, carbon fibres, asbestos fibres, natural and synthetic polymer fibres, textile fabrics, fabrics from carbon and asbestos fibres and glass fabrics; lubricants, e.g. stearin, metal stearates and oleic acid; functional additives e.g. calcium and manganese oxides; dyes; pigments; blowing agents and plasticizers. The compositions are prepared by grinding and mixing the components followed by rolling or extruding the mixture and then grinding. In the examples compositions are prepared from a phenol-formaldehyde novolak oligomer of M.Wt. 600-1000, sawdust, calcium stearate, CaO and either sodium tetraborate or potassium tetraborate or boric acid and as hardening agent an adduct of hexamethylenetetramine and either (i) resorcinol, or (ii) phloroglucinol, or (iii) phenol, or (iv) a mixture of resorcinol, 2,5 - dimethylresorcinol and 5 - methylresorcinol. Compositions are also prepared from the said oligomer and an adduct of hexamethylenetetramine and either resorcinol or 5 - ethylresorcinol. The compositions are cured by heating. Uses:-Moulding powders; foams; foundry tools; abrasive articles; coating; adhesives.
Patent GB-205717-A (GB)
Title: Improvements in wireless receiving apparatus
IPC: H04B1/08
Filed: 1922-11-10
Abstract: 205,717. Calver, B. G. Nov. 10, 1922. Receiving sets, construction of; crystal detectors.-A receiving set comprises a tuning coil mounted between two end members which are bridged by an insulating panel carrying the rest of the apparatus. As shown, the tuning coil a is held between the members c by a bolt b. The insulating panel e carries an arm m which is movable in an arc over the coil for tuning, a crystal detector, and terminals g. The necessary connections are made at the back of the panel which also carries a telephone condenser. The detector which is of cats whisker type is fixed to the panel by a bolt forming a pivot for the arm m. A safety gap may be provided.
Patent GB-280933-A (GB)
IPC: F16B7/02
Filed: 1927-11-17
Abstract: 280,933. Felix, A.. P. Nov. 18, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Ball-and-socket joints.-A fluid-tight joint bebetween two elements 1, 5, Fig. 1, is formed by providing the element 1 with a. head 2 having a spherical surface 3 adapted to engage a like cavity 4 in the other element 5, positive connection between the two being maintained by a rod 7, carried by the element 5, and a lock-nut 8 which is threaded thereon and acts through a spring 9 upon a shoulder 10 within the head 2. The contacting surfaces of the joint may be lubricated by drilling a hole through the rod 7 and providing a lubricator 14, Fig. 3, which may be carried by an intermediate wedge. A pipe joint formed in accordance with the invention is shown in Fig. 2, while the invention may also be applied to shafts, Fig. 5, joints for brake-operating gear, and to the axles of elliptical springs.
Patent GB-672686-A (GB)
Title: Improvements relating to speed control systems for direct current motors
Inventor: KELSALL RICHARD HOPE
IPC: H02P7/26
Filed: 1948-11-29
Abstract: 672,686. Control of D.C. motors. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 5, 1949. [Nov. 29, 1948] No. 30933/48. Class 38 (iii). [Also in Group XXXV] A direct-current motor speed control system of the kind in which increase in speed is effected up to a predetermined value by increase of armature voltage with constant maximum field current and thereafter bv decrease in field current, is provided with means responsive to the back electromotive force of the motor which weaken the field current when the back electromotive force of the motor exceeds a value corresponding to said predetermined value of speed and in proportion to the increase of back electromotive force above said corresponding value. As shown, the armature 1 and interpole winding 2 of a direct-current motor are supplied from an alternating-current source through a device 4 which comprises a rectifier and an amplifier, and operates to control the supplyvoltage automatically so as to adjust the motorspeed and thereby maintain the voltage of a tachometer generator 5 equal to an adjustable reference voltage derived from a potential. divider 6. A field winding 13 of the motor is energized from an alternating-current source through a rectifier 14, the input terminals of which are connected in series with a winding of a saturable reactor 15. The control winding of the reactor is connected in the anode circuit of a tetrode valve 10, the control grid 12 of which is positively biased over a first part of the speed range of the motor so that the control winding of the saturable reactor carries a large current and the field winding 13 is fully excited. The effective voltage applied to the grid 12 is the difference between a reference component derived from a source 11 and a negative component, which varies in proportion to the backelectromotive force of the motor, and which is obtained from a bridge circuit formed by the motor armature, its interpole winding, and resistors 7 and 8. When the back-electromotive force increases above a value predetermined by the selected value of the reference component, the valve 10 becomes negatively biased and the consequent increase of the reactance of the alternating-current winding of the transductor reduces the field excitation of the motor. Quick response to sudden increases in the pre-set speed may be obtained by arranging that the field-weakening control operates before the back-electromotive force reaches a value corresponding to the full armature voltage and field excitation of the motor. The control current for the transductor 15 may be obtained from a second transductor, instead of through the valve 10. Specification 672,687 is referred to.