baber/WOPTO huggingface dataset:
Patent GB-1313453-A (GB)
Title: Responder mechanism in audiovisual educational apparatus
IPC: G09B7/08
Filed: 1971-04-19
Abstract: 1313453 Educational apparatus BORG-WARNER CORP 19 April 1971 [7 April 1970] 25890/71 Heading G5G Audiovisual question and answer apparatus wherein a card-like visual image support 52 is moved step-by-step to bring successive images into position for display, an audio reproduction system including a turntable is controlled to reproduce messages corresponding to successive images and wherein said movement of the image support is controlled by student actuated response devices coacting with code apertures 57 on the support, is characterized by blocking means for holding an actuated one of said response devices in its actuated position and the others in their rest position, the blocking means being energized by actuation of one of the response devices and de-energized by rotation of the turntable. The image support and arrangement for moving the same are as described in Specification 1,313,452. In response to a question, a student depresses one of response keys 11a-11e, for example, key 11c, whereby a bell crank assembly 20c, 21c, 22c is rotated about pivot 24c to urge a pin 31c through a code aperture 57 in the image card 52 to engage a resilient actuator plate 59 for a switch 58. As more fully described in the referred-to Specification, actuation of this switch 58 releases a locking pawl (not shown) to allow the image card 52 to be advanced by a spring 45 and a sprocket wheel 46 to a position for displaying the next image. Depending on whether the code aperture 57 engaged by the pin 31 was a slot or a hole corresponding respectively to correct and incorrect responses the card movement is either permitted or prevented. Actuation of the switch 58 also causes an electromagnet (38) (Fig. 2, not shown) to be energized to pivot a blocking plate 36 carrying cam elements 40a-40e into a position in which the assembly 20c, 21c, 31c is held in its actuated position and operation of the other response devices 21, 31 is prevented. Actuation of the switch 58 also results (by means not shown) in rotation of the turntable (81) (Fig. 3, not shown) whereby the locking pawl is rendered effective again and then the electromagnet 38 is de-energized to release the blocking plate 36. Should the student respond to the next question before the turntable has completed its rotation, then the next cycle of operation will continue without the turntable stopping.
Patent GB-1177645-A (GB)
Title: Plant Extracts and Compositions Containing Same.
Inventor: DEBAT JACQUES
IPC: A61K36/00
Filed: 1966-06-10
Abstract: 1,177,645. Medicinal plant extracts. LABORATOIRES DU DR. DEBAT AND H. D. LASZLO. 9 June, 1967 [10 June, 1966], No. 25893/66. Heading A5B. [Also in Division C2] A preparation for treating glandular disorders is prepared by drying the bark, wood, flowers or fruit of a plant of the genus Prunus, especially the species Prunus africana or related species (e.g. Pygeum africana), and extracting the dried powdered material with a liquid solvent for sterols, e.g. water, an alcohol, ether or chloroform. The crude extract may be purified, e.g. by chromatography on silica, the purified product being a mixture of sterols. The active material may be put up into pharmaceutical compositions, e.g. in the form of tablets, cachets, dragees, injectable liquids and implants.
Patent GB-318205-A (GB)
Title: Improvements relating to lighting devices for vehicles, mainly for motor cars
IPC: B60Q1/24
Filed: 1929-08-26
Abstract: 318,205. Larquemin, A. Aug. 30, 1928,. [Convention date]. Lighting, systems of; vehicle lamps; lantern screens; tell-tale devices external to lantern for transmitting light to definite points.-An anti-dazzle arrangement for vehicles comprises means for projecting a beam of light forwardly underneath the vehicle, means formed or carried by the vehicle at a point in front of the lamp to cut off the upper portion of the beam, and means for illuminating and extinguishing the projector simultaneously with the extinction and illumination of dimmed headlights. In the form shown in Fig. 2, the projector comprises a light source a at the focus of a parabolic reflector b and a protecting cylinder f the front end of which is fitted with a hinged door g and may flare out into a horizontal flattened portion. The projector is placed as low and as far back as possible to project a beam substantially parallel with the longitudinal centre line of the vehicle and parallel to or slightly inclined towards the ground. In a modified arrangement the projector is disposed at the rear of the ehicle with its axis vertical, a mirror or prism being arranged to project the beam forwardly under the vehicle. The screen d is placed as far forward as possible and mav be inclined at 45 to the horizontal so as to direct the intercepted part of the beam down on to the ground. It also acts as a mudguard for the projector. A cable p, Fig. 8, connected to the door g passes over a pulley o which is rotated bv means of a gear wheel j<2> keyed to a shaft i<2>. The wheel j<2> engages with a larger gear wheel j<1> keyed to a shaft i' carrying an insulated contact m which co-operates with two pairs of contacts adapted respectively to shortcircuit the projector lamp a and the dimmed head lights. The shaft i<1> also carries a lever k which is operated against the action of a spring by means of a flexible cable q connected to, a control lever r.
Patent GB-578651-A (GB)
Title: Sand mulling apparatus
IPC: B22C5/04
Filed: 1944-12-28
Abstract: 578,651. Grinding-mills. BEARDSLEY & PIPER. CO. Dec. 28, '1944, No. 25985. Convention date, April 24. [Class 59] [Also in Group XXII] Apparatus for grinding or breaking up used foundry sand comprises a portable bowl-shaped receptacle for the sand and a self contained unit adapted to be lowered on to the receptacle so that the side walls of the unit form a continuation of the side walls of the receptacle, the unit having a grinding or crushing wheel adapted to be driven in a circular path over the bottom of the receptacle. The receptacle comprises a cylindrical sided bowl 21 strengthened at its upper edge by an angle iron 23 and at the bottom welded to spaced plates 11 which form the sides of a wheel-barrow. The crushing unit comprises an open-ended cylinder 26 reinforced at each end by circular pieces. As the unit is lowered on to the bowl 21 from a travelling crane, it is guided into correct registry with the bowl by means of depending fingers 36 and locked in position by hand-operated pivoted latches 37. Supported on two angle bars 45 welded across the top of the cylinder 26 is the housing of a reduction gear 52 and an electric motor 51 which drive a spindle 50 depending within the cylinder and carrying at its lower end a cross-head 27. At one end the cross-head 27 is bent down to form an arm 67 adjacent the inner periphery of the cylinder and bowl and to the arm is secured a scraper 81 adapted to move sand inwardly towards the centre of the bowl. The other end of the cross-head carries a depending arm 76 to which is secured a plough 82 adapted to move the sand from the centre outwards. Thus.both the scraper and the plough are adapted to push sand into the path of two rollers or wheels 68 with solid rubber tyres 69 secured on an axle 70 welded to a bar 71. This bar is bolted at one end to the cross-head, a block of rubber or other resilient material being interposed so that under the action of a spring 78 the bar 71 may move downwardly into contact with the bottom of the bowl. Pins 75 on the arm 76 limit the extent of the downward movement.
Patent GB-601151-A (GB)
Title: Improvements in and relating to the drying of vegetables
IPC: A23L19/15
Filed: 1939-09-16
Abstract: 601,151. Dried cooked vegetables. RIVOCHE, E. J. Sept. 16, 1939, No. 26001. [Class 49] A readily-reconstitutable dry product is made from a starch-containing vegetable, e.g. potatoes, by cooking the vegetable without increasing its moisture content, cooling, reducing the vegetable to a damp powder and reducing the moisture content by 45 to 80 per cent and then drying by the application of heat. The cooling and also reduction of the moisture content may be effected by reducing the pressure or by means of a current of air, and the reduction of the moisture content may be effected also by centrifuging, by means of an absorbent, e.g. a cloth-covered roller, or by the addition of dried product previously made by the process or an equivalent dried product. With the apparatus shown, potatoes are introduced through the inlet 16 into the drum 1 and are cooked by hot air introduced through the tube 14 or by dry steam introduced by the conduits 22, 20, the cooking being assisted if desired by the introduction of steam through the tube 8 into the jacket 7 of the drum. Water liberated during the cooking is removed through the tube 12 or through the conduit 24 to the condenser 25 by a vacuum pump connected to the conduit 26. Cooling after cooking may be effected by reducing the pressure in the drum or by introducing cold water into the jacket 7, and in addition, if desired, by introducing dry cold air under pressure through the tube 14. The cold cooked vegetable is stirred in order to equalise the temperature throughout by slow turning of the paddles 3 on the spindle 2 and may then be converted to damp powder by more rapid rotation of the spindle, previously-prepared dry product having been incorporated if the moisture content is too high. The hot drying may be effected by passing hot air or steam through the jacket 7 while the spindle 2 is being rotated slowly. Specifications 457,088, 496,423 and 525,043 are referred to.
Patent GB-740941-A (GB)
Title: Process for working-up sewage sludges for the purpose of obtaining vitamin b and the production of high-grade supplementary feeding stuffsí¬apf products
IPC: C12P19/42
Filed: 1953-09-22
Abstract: A dried product or concentrated solution for addition to animal feeding stuffs is obtained by treating sewage sludges, such as digested sludge, percolated sludge or activated sludge, with bacterial cultures promoting decomposition and increasing the formation of Vitamin B12 during digestion, heating the digested material to temperatures exceeding 100 DEG  C. whereby to liberate the vitamins formed and either thereupon drying said material as a whole or separating off the aqueous vitamin-containing phase and concentrating it, if desired, in vacuo.  During digestion cobalt salts may be added to the sludges. The aqueous vitamin-containing phase may be used for the subsequent hot extraction of further digested sludge.ALSO:APF-containing preparations for incorporation into animal feeds or feed supplements are obtained from biologically decomposed sewage sludge by a treatment involving heating of the sludge to above 100 DEG  C. to liberate the vitamin B12 therein.  To the sewage sludge product may be added yeast, a keratin, soya bean chips, oil pressing residues, bran, train oil emulsions, nutrient salts such as phosphates, trace elements, other vitamins.  An example is concerned with digesting at 30 DEG  C. sewage sludge to which cobalt chloride has been added, heating the digested sludge under pressure to 120 DEG  C., removing and concentrating the aqueous portion of the heated sludge, mixing the concentrate with autolyzed yeast, and drying the mixture on a drum drier.
Patent GB-503734-A (GB)
Title: Drying installation for paper-making and like machines
IPC: D21G9/00
Filed: 1938-09-07
Abstract: 503,734. Paper-drying; steam-traps. BIANCO, M. D., and KOHLMANN, H. Sept. 7, 1938, No. 26173. [Classes 34 (i) and 64 (ii)] A drying imtallation for paper - making and like machines. comprises drying cylinders 11-15, felt driers 16, 17, a single main regulator 1 in the steam supply pipe 20 for the drying cylinders and another regulator 2 in the steam supply pipe 21 for the felt driers, individual regulators 3 in the steam supply pipes 22, 23 of the cylinders, which are formed into at least one group solely by the connection of their condensed water discharge pipes 4 to a common collector 5, without any grouping on the steam supply side, which collector 5 communicates with a steam separator and thermostatically controlled discharge b for air and water of condensation, the steam issuing from the separator through a regulator for use in a heat-exchanger, e.g. through pipes 6 to preliminary condenser drying cylinders d. The discharge b from each group of cylinders has an inspection opening p and a thermometer i to observe passage of water. The separators a have baffles, and each adjustable discharge b comprises an expansible body f<1> bathed by air and water discharging through valve g, which on rise of temperature is closed by the body f<1>, which also through a bell-crank lever e<1> opens a valve e allowing steam to pass to a cylinder d. Air and water from discharges b, c pass through a common manifold 7 to a separator l, whence any steam passes to a preliminary diying cylinder A, air to a vent n which prevents formation of a vacuum, and water to a tank m and suction pump r. A thermostatic regulator o of the air and water discharge from the cylinder A controls discharge of water from the separator l. The regulators 3 are controlled by hand or automatically.
Patent GB-950801-A (GB)
Title: Process for the purification of liquid paraffin
Inventor: JAHN EVA-MARIA
IPC: C07C9/14
Filed: 1962-07-09
Abstract: Liquid paraffins which are free from fluorescence in ultra-violet light are obtained by hydrogenating the crude feedstock and subsequently treating with gaseous sulphur trioxide, which may be admixed with a carrier gas, for example, nitrogen or air.  Prior to SO3 treatment, the oil may be activated by the addition of sulphuric acid or acid tar, preferably that obtained from a previous operation. The treatment is preferably effected below 50 DEG  C. The product may be extracted by alcoholic alkali, and thereafter acidified with oleum. This may be followed by neutralization with alcoholic alkali and final treatment with activated earth.  The hydrogenation may be effected at 300-400 DEG  C., 30-120 atmos.
Patent GB-728524-A (GB)
Title: Process for the production of hexahydroxybenzene
Filed: 1952-10-20
Abstract: In a process for the production of hexahydroxybenzene carbon monoxide is caused to react at elevated temperature and elevated pressure with an alkali metal other than potassium, preferably sodium and the alkali metal carbonyl thus formed is reacted with an alcohol, water or an acid to produce hexahydroxybenzene by a transposition reaction in which the alkali metal atoms of the carbonyl are exchanged for hydrogen atoms.  The alkali metal may contain small amounts of another alkali metal such as lithium or potassium or of an alkaline earth metal such as calcium as an alloy constituent or in the form of a mechanical mixture.  The alkali metal may be employed as an amalgam or as a suspension or colloidal solution in a dispersion medium of low volatility.  Some carbonate may also be formed.  A small amount of a salt of the alkali metal may be added during the reaction. Inert gases such as nitrogen or methane in admixture with the carbon monoxide prevent local overheating.  Hexahydrobenzene produced by hydrolysis may be isolated or converted into other products.  The product may be oxidized to products of quinoid character such as tetrahydroxyquinone, rhodizonic acid, triquinoyl, croconic acid and leuconic acid or hydrogenated to form inositol.  The process may be carried out in a rotary steel autoclave advantageously containing edged grinding bodies.  In examples sodium (1) and (4), sodium containing lithium (2), sodium containing potassium (3) are heated in rotary autoclaves with carbon monoxide under pressure to form the hexacarbonyl which is converted to hexahydroxybenzene by the addition of hydrochloric or sulphuric acid, water or ethyl alcohol.ALSO:Alkali metal hexacarbonyls are obtained by a process in which an alkali metal other than potassium, preferably sodium, is reacted at elevated temperature and pressure with carbon dioxide. The alkali metal may contain small amounts of another alkali metal such as lithium or potassium or of an alkaline earth metal such as calcium as an alloy constituent or in the form of a mechanical mixture.  The alkali metal may be employed as an amalgam or as a suspension or colloidal soluton in a dispersion medium of low volatility.  A small amount of a salt of the alkali metal may be added during the reaction.  Inert gases such as nitrogen or methane in admixture with the carbon monoxide prevent local overheating.  In examples: Sodium (1) and (4), sodium containing lithium (2) and sodium containing potassium (3) are heated in rotary autoclaves with carbon monoxide under pressure to form the hexacarbonyls.  The hexacarbonyls are converted to hexahydroxybenzene (see Group IV (b)).
Patent GB-644884-A (GB)
Title: Roofs of buildings
IPC: E04B7/02
Filed: 1947-09-29
Abstract: 644,884. Roof construction. GLOVER, C. W. Sept. 29, 1947, No. 26305. [Class 20(iv)] Reinforced concrete roof truss rafters have notched upper surfaces to retain tiles in position. Rafters 1 and ties 2 secured together by bolts 16 and spaced at 18 with centres are notched to fit on top of wall plates 3. Tiles 6 rest above ledges provided by fibre or plaster insulating boards 5 held in position by the notches 4. At the ridge, the rafters are shaped to fit against a ridge piece 7 with a bulb base 8 and are fixed to it by dowels 10 driven through the holes 9. In the case of heavy tiling, an aluminium strip 13 with tongues 14, 15 which rest on top of one lining board and support the neighbouring one, may be used.
Patent GB-1038794-A (GB)
Title: Weft needles and weft feeding devices for shuttleless looms
IPC: D03D47/23
Filed: 1964-06-26
Abstract: A weft needle for a narrow fabric loom has two guide surfaces formed by notches between which the weft passes and can be taken by a latch needle.  The guide surfaces are in different planes in respect of height and direction relative to the latch needle and they may be the same or different distances from the point of the weft needle.
Patent GB-750471-A (GB)
Title: Insecticidal products
IPC: C07D307/52
Filed: 1950-10-30
Abstract: Diacetyl dianil is prepared by refluxing a mixture of diacetyl, aniline and alcohol on a water-bath.  The dioxime of 3,6,7,10-tetramethyl-4,5,8,9-tetra aza-dodeca-3,7,5,9-tetraene-2,11-dione is prepared by adding diacetyl monoxime to a cold aqueous solution of diacetyl dihydrazone and shaking.  Styryl methyl ketazine is prepared by neutralizing an aqueous solution of hydrazine sulphate with sodium carbonate, refluxing the solution with an alcoholic solution of benzal acetone and pouring the product into excess of water with cooling. Specifications 715,812 and 749,811, [both in Group VI], are referred to.ALSO:An insecticidal product includes in conjunction with an auxiliary ingredient or ingredients, or auxiliary means, a compound containing a plurality of azomethine groups which groups are distributed in the molecule in such a manner that the compound contains in an open chain at least one combination of two of the said groups, either attached together through their nitrogen atoms, directly or with the interposition of an aliphatic or substituted aliphatic residue, or attached together through their carbon atoms, directly or with the interposition of an organic residue.  The auxiliary ingredient is a non-solvent diluent; a suspending, emulsifying or dispersing agent; or a combination of a solvent with such a diluent or agent preferably to make a product in the form of a wettable powder, emulsion or smoke.  The auxiliary means is a device which has the double function of serving as containers for the product and as means for disseminating the same, e.g. as described in Specifications 715,812 and 749,811.  Specified azomethine compounds are benzylideneazine and its derivatives such as the o, o1-dichloro-, m, m1-dichloro-, p, p1-dichloro-, o, o1-dihydroxy-, o, o1-dimethoxy, p, p1-dimethoxy-, 2, 4, 21, 41-tetrahydroxy-, 3, 4, 31, 41-tetramethoxy-, and 3, 31-dimethoxy-4, 41-dihydroxy-benzylideneazine, furfurylideneazine, 2-thiophenealdazine, crotonaldazine, butyraldazine, benzylidene-furfurylideneazine, phenyl methyl ketazine, styryl methyl ketazine, 2-furoyl methyl ketazine, hydrobenzamide, diacetyldianil, diacetyl oxine hydrazone, dibenzylidenediacetyl dihydrazone, the oxime of benzylidene diacetyl hydrazine, and the dioxime of 3, 6, 7, 10-tetramethyl-4, 5, 8, 9,-tetra-azododeca-3, 5, 7, 9-tetraene-2, 11-dione.  According to examples, (1) diacetyl dianil is mixed with acetone and polyethylene glycol oleate to form a water-emulsifyable solution; (2) finely ground dioxime of 3, 6, 7, 10-tetramethyl-4, 5, 8, 9,-tetra-azododeca-3, 5, 7, 9-tetraene- 2, 11-dione is mixed with china clay and sulphite lye powder to form a powder which can be suspended in water; (3) styryl methyl ketazine is mixed with acetone and "Lissapol N" (R.T.M.) to form a water-emulsifyable solution; (4) cinnamylidene ozine is worked up as in example (3); (5) furfurylidene azine is worked up as in example (2); (6) 2-furoyl methyl ketazine is worked up as in example (3); (7) 2-thiophenealdazine is worked up as in example (3).