baber/WOPTO huggingface dataset:
Patent GB-597726-A (GB)
Title: A process for the manufacture of a granular amine-aldehyde moulding composition
IPC: C08J3/12
Filed: 1945-08-24
Abstract: A process for the manufacture of granulated amine-aldehyde resin moulding compositions comprises introducing into a vessel the resin-forming ingredients in an aqueous medium, adding a filler such as wood pulp, a -cellulose, paper, cotton, canvas, asbestos or other natural or synthetic fibres or mixtures thereof, p  condensing the resin-forming ingredients in the vessel while stirring, continuing the stirring until the filler is impregnated with the reaction product, and stirring the mass while drying in the vessel and granulating the dried mass in the vessel.  The amine-aldehyde resins are acid-curing thermosetting resins such as aminotriazinealdehyde, dicyandiamide aldehyde, melamine-modified dicyandiamide-urea-aldehyde, melamine-urea-formaldehyde, alkylated urea aldehyde and alkylated melamine-aldehyde resins or mixtures of these resins.  The aldehyde is preferably formaldehyde or its polymers, but acetaldehyde, propionaldehyde, butyraldehyde, acrolein, methacrolein, crotonaldehyde and mixtures of these or mixtures of these aldehydes with formaldehyde.  The temperature of the initial reaction is about 40-50 DEG  C. and not exceeding 60 DEG  C.  The pH is maintained above 5.8, that of the final product being 5.8-7.0, preferably about 6.5, and the drying temperature is kept preferably below 60 DEG  C.  A latent catalyst, comprising 1-3 per cent of the weight of the resin is preferably formed in situ before or during the condensation by reacting at least a portion of the aldehyde from which the resin is prepared with a salt of an alkaline amino compound to form a complex salt which decomposes at moulding temperatures to yield an acid.  The process is carried out in a vessel having a hinged cover and fitted with a pair of rotatable serrated sigma blades.  The reaction temperature is regulated by a water jacket and an air intake and exhaust fan circulate air through the reaction mass, which may be dried by passing air or other gases through.  In the examples: (1) a urea formaldehyde resin was prepared in the presence of a complex salt formed from ammonium hydroxide and sheeted, bleached paper pulp added as the filler; (2) the procedure of example 1 was followed, except that the final drying was carried out in an apron drier; (3) a melamine-formaldehyde resin moulding composition was prepared and (4) the procedure of example 3 was carried out with the addition of a water soluble colouring matter during the mixing.  Apparatus for carrying out the process, is also described (see Group II).
Patent GB-454985-A (GB)
Title: Improvements in, or relating to, electric switches of the tumbler type
IPC: H01H3/60
Filed: 1935-08-01
Abstract: 454,985. Tumbler switches. CRABTREE, G. E., Endwood, Little Aston Park, Sutton Coldfield, ELLIOTT, W. T., The Vicarage, Grosvenor Mount, Leeds, BADHAM, E., 34, Buchanan Road, Walsall, and THORNTON, R. W., 3, King Edward Street, Oxford, [Representatives of CRABTREE, J. A.] Aug. 1, 1935, No. 21795. [Class 38 (v)] In a tumbler switch such as described in Specification 231,286, [Class 38 (v)], in which a contact arm b is pivoted at c<1> to the dolly c and at e to a spring-controlled link d, pivoted at d<1> a cushion or silencing expedient a is interposed between the contact arm and the link to prevent metallic contact between them. The cushion may comprise a piece of cork or rubber and may be fixed either to the contact arm or to the link. In closing the switch, the dolly c carries the pivot c<1> just past a deadcentre position in which the spring f acting on the link d reaches its maximum compression. The speed both of make and break can be regulated by the hand of the operator on the dolly.
Patent GB-935639-A (GB)
Title: Pharmaceutical compositions comprising drug/resin adsorbates
IPC: A61K9/18
Filed: 1962-06-07
Abstract: Drug/resin adsorbates are prepared by contacting an aqueous solution of a salt (e.g. the phosphate) of amprotropine with a nuclear sulphonic acid cation-exchange resin, e.g. a polymerized vinyl benzene containing nuclear sulphonic acid groups of the type disclosed in Specification 577,707 in the hydrogen or alkali metal cycle.ALSO:Pharmaceutical compositions comprise particles of a nuclear sulphonic acid cation-exchange resin in which at least some of the cations present are those of amprotropine, the particles being coated with caster wax.  The coated particles may be prepared by suspending the active compound in molten caster wax and spray chilling the suspension by conventional means, e.g. atomizing spray nozzles, bifluid spray nozzles, centrifugal atomizing wheels or nozzles and are suitable for slow oral ingestion, e.g. by chewing, sucking or sipping.  They may be incorporated into conventional pharmaceutical forms, e.g. tablets alone and together with antacids, e.g. aluminium hydroxide, aluminium silicate, dihydroxy aluminium acetate; antiallergenics, e.g. phenindamine tartrate, sedatives, e.g. phenobarbitol and methyprylon; decongestants, e.g. phenylephrine, hydrochloride; acetyl salicylic acid, caffeine, acetophenetidin and 1,5 - dimethyl - 4 - isopropyl - 2-phenylpyrazolone-(3). Specification 577,707 is referred to.
Patent GB-1244807-A (GB)
Title: Improvements in vehicle controls
Inventor: KNIGHT WILLIAM
IPC: B60K26/02
Filed: 1969-04-30
Abstract: 1,244,807. Vehicle controls. COVENTRY CLIMAX ENGINES Ltd. 25 March, 1970 [30 April, 1969], No. 21997/69. Heading B7H. A first pedal 5 has branches 6, 7 which controls a torque converter (not shown) through lever (4), Fig. 2 (not shown), to produce forward and reverse motion of the vehicle from the neutral position shown in Fig. 1. An accelerator pedal 11 is pivoted on a horizontal bolt 12 for movement between the full line position and broken line positions, Fig. 2 (not shown), representing minimum and maximum engine speeds. When the first pedal 5 is in neutral position, a slot 19, in a plate 17 integral with the pedal 5, accommodates a locking piece 16 when the pedal 11 is depressed. When the pedal 11 is in uppermost position, Fig. 2 (not shown), the pedal may be actuated by a driver's toe to the forward or reverse positions. In either of these positions the locking piece 16 inhibits movement to neutral position with the pedal 5 depressed. An arm (27), Fig. 2 (not shown), engages a switch (28) when the pedal 5 is in neutral position, the switch being connected to a starter motor circuit to prevent the engine being started unless the torque converter is in neutral.
Patent GB-1419362-A (GB)
Title: Process for the manufacture of unsaturated compounds
IPC: C07C41/00
Filed: 1974-05-17
Abstract: 1419362 1,3-Trans-diene compounds; α- sinensal; myrcenol L GIVAUDAN & CIE SA 17 May 1974 [18 May 1973] 22017/74 Heading C2C [Also in Division C5] Compounds of the Formula (I) are prepared by isomerizing compounds of the Formula (II) (where R represents Me 1 C(OR<SP>1</SP>).CH 2 .CH 2 - CH 3 .C(CHO) = CH-CH 2 .CH 2 .CMe = CH-CH 2 - R<SP>2</SP>OCH 2 .CH 2 - or R<SP>3</SP>OCO.CH 2 - in which R<SP>1</SP> is H or C 1 -C 6  alkyl or acyl, R<SP>2</SP> is C 1 -C 6  alkyl or acyl and R<SP>3</SP> is C 1 -C 6  alkyl) in the presence of (a) an alcohol, (b) Rh(NO 3 ) 3 , RhCl 3  or H 2 IrCl 6  and (c) a carboxylic acid chloride. Starting materials mentioned are myrcenol and esters and ethers thereof. An example describes the isomerization of #-sinensal to α-sinensal which is mainly in the trans form using as catalyst isopropanol, Rh(NO 3 ) 3  and acetyl chloride.
Patent GB-1113135-A (GB)
Title: Purification of hydrochloric acid
Inventor: CARSON SAMUEL CORBETT
IPC: C01B7/01
Filed: 1966-05-18
Abstract: Hydrochloric acid contaminated with dissolved Si-containing compounds is purified by treatment with HF.  The HF may be aqueous or gaseous. At least 1 part, e.g. 2-4 parts, HF may be used per part of the Si compound (as SiO2) by weight.  Solid impurities may be removed initially.  The HCl may be the by-product in the manufacture of silicones by hydrolysis of alkyl or aryl chlorosilanes.
Patent GB-583632-A (GB)
Title: Improvements in or relating to thermionic valve pulse generators
IPC: H03K3/16
Filed: 1944-11-09
Abstract: 583,632. Pulse generating circuits. DALZIEL, R. Nov. 9, 1944, No. 22125. [Class 40 (v)] A circuit for generating short asymmetric pulses of stable frequency, comprises a multielectrode valve having a first control electrode and another electrode associated with a tuned circuit to form an oscillator, with biassing means to allow space current to flow only during the peaks of oscillation, and with means for feeding oscillatory potentials back to a second control grid through a phase shift network to make the pulses asymmetric. The Figure shows the first control and screen grids of heptode valve V1 arranged in a conventional crystal controlled oscillatory circuit, with automatic biassing by means of resistor R1. Circuit C2, L3 couples the second control grid to the oscillator circuit and is tuned to a frequency slightly different to the fundamental oscillator frequency so that a phase shift slightly different from 180 degrees is produced between oscillations at the first and second control grids. Consequently, anode current flows only during the short period when both grids are above cut off level and an asymmetric pulse rich in harmonics appears across the anode load which may be tunable to a particular harmonic.
Patent GB-583640-A (GB)
Title: Valve mechanism
IPC: F15B13/06
Filed: 1944-11-10
Abstract: 583,640. Manually - actuated valves. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. Nov. 10, 1944, No. 22221. Convention date, Dec. 8, 1943. [Class 135] A fluid pressure control device comprises a number of valve mechanisms 7, 27 each of which can be actuated selectively by a control lever 38, the connection between the valves and the lever being of a resilient nature and comprising a single spring 46 positioned between an abutment 47 on the lever and a plate 43 slidable on the lever and contacting the valve stems 12. The lever is universally mounted by means of a ball-and-socket joint 37 and works in two slots 40 at right angles, and it controls two pairs of valve mechanisms at right angles to each other. Abutment 47 is also loose on the lever and is spherically shaped to slide over a similarly shaped part of the valve casing. The lever is held in the neutral position shown by a spring-pressed detent 48 engaging an aperture in the lower end of the ball 37, and it is also held in its operating positions by the detent engaging in a groove 52 in the ball. Each valve mechanism is of the self-lapping type and comprises interconnected inlet and outlet valves 15, 17, respectively, the former controlling the passage of pressure fluid from the inlet 6 to a conduit 24 leading to the device to be actuated, and the outlet valve controlling the flow of fluid through a piston 11 and a port 22 to an atmospheric exhaust conduit 23. When the control lever is actuated to depress piston 11, valve 17 will first close to shut off communication between the actuator and exhaust and valve 15 will be opened against its loading spring 18 to allow pressure-fluid to flow to the actuator. As pressure builds up in chamber 10, it will press on piston 11 until the resistance of spring 46 is neutralized when the piston will rise and allow the inlet valve to close again. A spring 19 keeps valve stem 12 in contact with plate 43.
Patent GB-466738-A (GB)
Title: Improvement in welt shoes and methods of making same
IPC: A43B9/06
Filed: 1936-08-12
Abstract: 466,738. Boots &c. DEL-MAC SHOE PROCESS CORPORATION. Aug. 12, 1936, No. 22232. Convention date, Jan. 6. [Class 17 (ii)] An insole for welted footwear is formed with a lip at the margin which is reinforced by the marginal portion of a stay member extending across an aperture in the forepart of the insole, with which aperture registers a projection on the forepart of the outsole. As shown, Fig. 3, the margin of a skeleton insole 10, which is preferably formed together with a complementary outsole by division of a single sole blank, is split inwardly from its edge about the shank and forepart to form a marginal leaf 14. A stay member 15 of fabric or leather which extends to the edges of the insole at the shank and ball portions is pasted over an aperture 11 in the forepart of the insole. The stay member may be further secured to the insole if desired by stitching 16. The leaf and the adhering margin of the stay member are erected to form a lip 18 to which, as by means of staples 24, Fig. 5, the upper may be secured to hold it in position after lasting. Adhesive is preferably applied in the channel to the feather 26 and to the outer wall of the lip which prevents the adhesive from flowing on to the insole. A welt having a flanged inner edge is next positioned in the channel and is stitched to the margin of the upper and the lip, after which the welt, upper and lip are trimmed away above the stitching and below the staples 24. The heel end is then lasted and the outsole is superimposed with its projection registering in the aperture 11, and secured to the belt by adhesive or by stitching or both. During the sole laying operation the insole and the central ball area of the stay member 15 are forced into intimate contact with the last bottom. A sock lining is afterwards inserted in the shoe.
Patent GB-1010941-A (GB)
Title: Improvements in and relating to flower pots or vases
IPC: A47G7/06
Filed: 1961-06-20
Abstract: 1,010,941. Flower vases and holders. D. TONG. June 20, 1962 [June 20, 1961], No. 22269/61. Heading A4U. A vase or pot, particularly for an artificial flower, has an indented base 2 and a disc 6 wedged in the upper part, the base and disc being centrally apertured at 4, 8 for passage of the flower stem 12 which is bent at 14, beneath the base to prevent accidental removal. In a modification the disc is integral with the pot and a tabular spigot, surrounding each aperture, extends into the pot.
Patent GB-485080-A (GB)
Title: Improvements in or relating to gearing for turbines
IPC: F16H47/08
Filed: 1936-08-13
Abstract: 485,080. Epicyclic gearing. LAMMEREN, W. P. VAN. Aug. 13, 1936, No. 22278. [Class 80 (ii)] [Also in Groups XXVI and XXIX] In a turbine, or a hydraulic torque converter of the turbine type, in which two vane elements are adapted to be alternatively braked to cause them to exchange functions and thereby produce forward or reverse running, the two vane elements are connected respectively to the sun and annulus of an epicyclic train, the planet carrier of which is carried by the driven shaft. Thus, when one of the vane elements is held against rotation a reduced speed of the driven shaft relative to the rotating element is obtained. As applied to a hydraulic torque converter, Fig. 1, of the kind described in Specification 458,143, driven and guide vane elements 4, 5 are connected to the sun and annulus 10, 11 respectively of an epicyclic train the planets 12 of which are carried on the driven shaft 2. The vane element 3 is the impeller element and is connected direct to the driving shaft 1. By holding either the guide element 5 or the normal driven element 4 by brakes 17 normal forward running or reverse running at reduced speeds is obtained of the driven shaft 2. A one-way braking device 15, 16 may be provided for the guide vane wheel 5 so that, whilst for forward running it is held against backward rotation, when the load torque diminishes it can rotate in a forward direction with the element 4 and drive the annulus 11 forwardly. If the torque is sufficiently reduced the forward speed of the guide element and the annulus 11 may equal that of the driven element and sun 10 to give an approximately direct drive from the shaft 1 to the shaft 2. By suitable design of the vanes of the guide element it may rotate at a higher speed than the driven element 4 and the impeller 3 to give an overdrive of the shaft 2. As applied to a steam turbine, Fig. 4, driven vanes 20 and guide vanes 23 are mounted on drums 21, 24 connected to the sun 25 and annulus 26 of an epicyclic train, the planets 28 of which are carried by the driven shaft 31. By holding either the drum 24 or 21 by means of brakes 32, normal forward or reverse running of the driven shaft at reduced speeds through the epicyclic train is obtained.
Patent GB-170680-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1920-07-28
Abstract: 170,680. Stanfield, J. R. M., and Adye, J. F. July 28, 1920. Two-stroke-cycle engines.-In engines having working cylinders and pumps of different diameters which are cross-connected, the transfer passages 19 are in constant communication with the clearance spaces in the working cylinders 14, 15, the exhaust ports 24 being at the ends of the cylinders away from the outlets from the passages. Between the working pistons 27, 28 and the pump pistons 30 is a reduced part 31 through which the charge passes from the pump chamber to the transfer passage. The pistons 27, 28, and the cylinders are flat ended so that there is little clearance the transfer passages forming the combustion chambers. The igniters are placed at 22 in the passages. The working pistons are long enough to control the delivery of air or mixture from the pump chamber into the passages 19 the inlets to the pumps being controlled by the pump pistons. Mechanically controlled or non-return valves may be used for the pump inlet and discharge.
Patent GB-380222-A (GB)
Title: Means for fixing a type strip to a base
IPC: B41L15/06
Filed: 1931-08-08
Abstract: 380,222. Printing-surfaces. AVERY, Ltd., W. and T. and LEESON, A., Soho Foundry, Birmingham. Aug. 8, 1931, No. 22477. [Class 100 (ii).] A type strip 5 is secured round a printing- drum 4, particularly for a weighing-machine, by fastening one end of the strip to the drum by a screw 11, and securing the other end by pins 10 in a slot formed in a bolt 6, which is mounted in a slot 4a in the drum and, by means of a nut 8 and washer 7, is movable axially to tension the strip. The slot 4a is bridged by a plate 9.
Patent GB-1062586-A (GB)
Title: Expandible toothed wheel for chain transmissions
IPC: F16H55/30
Filed: 1964-06-01
Abstract: 1,062,586. Expanding wheel gear. C. GONZALEZ RODRIGUEZ. June 1, 1964 [June 1, 1963; Nov. 5, 1963; March 12, 1964], No. 22576/64. Headings F2D and F2Q. A variable pitch chain sprocket has square shank teeth 23 which can be clamped in radially adjusted positions on a plate 20 with their inner ends abutting an exchangeable ring 22 carried by a central boss 21 of plate 20. As shown, the teeth shanks are radially guided and axially clamped by oppositely facing studs 26, 29 engaging slots in the shank and plate and are held radially inwards by engaging arcuate blocks 32 which may have one or more supplementary teeth 33 for large sprockets and are radially fixed by screws (Fig. 5, not shown) or clamped by bored studs 35 to blocks 39 integral with or fast on plate 20. In Figs. 1-3 (not shown), the teeth are guided in radial channels and clamped by a common plate bolted to the face of the channelled plate.
Patent GB-1180666-A (GB)
Title: Improvements in or relating to Document Feeding Apparatus
Inventor: BOND WILLIAM PERCY
IPC: G06K13/10
Filed: 1967-05-16
Abstract: 1,180,666. Feeding sheets. INTERNATIONAL COMPUTERS Ltd. 7 May, 1968 [16 May, 1967], No. 22614/67. Heading B8R. Documents 9, Fig. 1, are stacked on edge on a support member 1 inclined to the horizontal and its lower end formed into a shallow upward bend, and the documents are urged towards the bent end by a plate 4 on a carriage 2 urged by gravity on rollers 5 against the stack. A linkage 19 is controlled by a sheet utilizing apparatus to open a valve 18 and blow air through an aperture 16 in a feed bed 7, causing a pressure differential which attracts the end sheet to the bed 7 and moves it against a stop 8. When a sheet is to be fed, the linkage 19 closes the valve 18 and opens a valve 17 to blow air through an aperture 15 and move the sheet along the bed, further air blows through apertures 10 holding the sheet against the bed. Air blown through a pipe 20 assists in the separation of the sheets, being blown against the edge of the stack. In another form, Fig. 2, the inclination of the member I is adjustable by a hand wheel 26, and the carriage 2 is provided with a brake comprising a shoe 27 engaging one of its rollers 5. When a switch arm 33 detects the presence of sheets on the bend, a solenoid 29 is de-energized to allow the shoe to engage the roller and stop the carriage. This form is used for thick documents which might otherwise over-run the member 2.
Patent GB-1489063-A (GB)
Title: Dilution of sulphuric acid in the wet phosphoric acid process using waste water
IPC: C01B25/22
Filed: 1974-05-21
Abstract: 1489063 Wet process phosphoric acid; diluting sulphuric acid CANADIAN INDUSTRIES Ltd 20 May 1975 [21 May 1974] 22616/74 Heading ClA Sulphuric acid is reacted with phosphate rock in a process which comprises the steps of (1) diluting concentrated sulphuric acid with pond water from the wet process for producing phosphoric acid to form an acid containing 65 to 75% by weight H 2 SO 4 ; (2) cooling the diluted acid to below 70‹ C.; (3) diluting the cooled acid with pond water from the wet process for producing phosphoric acid to form an acid containing 50 to 65% by weight H 2 SO 4 ; (4) reacting the diluted acid with phosphate rock. Steps (3) and (4) may be carried out concurrently.
Patent GB-939543-A (GB)
Title: Improvements in or relating to electric arc welding
IPC: B23K35/365
Filed: 1960-06-28
Abstract: The electrodes disclosed in the parent Specification are used in the electric arc welding of steel under conditions in which the temperature of the weld metal falls to 200 DEG  C. in less than one minute.
Patent GB-936736-A (GB)
Title: Frequency meters
Inventor: PHOENIX LANCELOT
IPC: G01R23/02
Filed: 1960-06-29
Abstract: 936,736. Frequency meters. JOSEPH LUCAS (INDUSTRIES) Ltd. June 14, 1961 [June 29, 1960], No. 22723/60. Addition to 843,152. Class 40 (5). The frequency meter of the parent Specification is modified by passing the input at 7, 8 through transistor squaring stages 11, 13, to the Zener diode 14 and connecting a choke 19, capacitor 18, diode 22 and a portion of a potential divider 20 in a series circuit across the Zener diode. As in the parent Specification the capacitor 18 is alternately charged by the input and discharged through the ammeter 17 to give a reading proportional to the input frequency, the choke 19 functioning to increase the meter reading accuracy over a wide frequency range. The potential divider 20 may be dispensed with and the meter 17 (and its variable shunt) series connected in the line between the terminals 2, 4 in which case terminals 15 16 are directly connected. Specification 880,760 also is referred to.
Patent GB-1115545-A (GB)
Title: Loose covers
Inventor: FINGERHUT ELI
IPC: B60N2/60
Filed: 1966-05-21
Abstract: 1,115,545. Seat covers. CUSTOMAGIC MANUFACTURING CO. Ltd. 13 April, 1967 [21 May, 1966], No. 22740/66. Heading A4M. A loose, one-piece, stretch fabric seatcover comprises a backrest cover sheath (10), a seat panel (17) and a skirt (18, 19) for covering the front and sides of the seat, the free edges of the skirt (18, 19) and of the rear panel (14) of the sheath (10) extending beneath the seat and having a hem (22) containing an elastic tape, and tapes (23), tabs or eyelets being provided along the free edges to receive S-shaped hooks (24) to anchor the cover to the underside of the seat. The hooks (24) may be anchored in apertures (26) in a mounting plate (25) or to the seat springs.