baber/WOPTO huggingface dataset:
Patent GB-1466988-A (GB)
Title: Electric motor control systems
IPC: H02P7/29
Filed: 1974-06-04
Abstract: 1466988 Control of D.C. motors GENERAL ELECTRIC CO 4 June 1974 [13 June 1973] 24658/74 Heading H2J A D.C. series motor 14, 16 is supplied from a battery 10 through a chopper having a main thyristor 12 and commutating circuit 22, 24, 26, 28, the mark-space ratio being varied by a control 30 according to the setting of a potentiometer 32 mechanically coupled to a by-pass switch 40 which closes, when the potentiometer 32 is at its maximum setting, to energize a timer 42 controlling firstly a thyristor 38 in series with the coil 36 of contacts 34 shunting thyristor 12, secondly the control 30 and thirdly a transistor 44, the arrangement being such that if potentiometer 32 is at its maximum setting long enough for the timer 42 to complete its cycle, a signal is applied to control 30 to inhibit commutation of thyristor 12, the thyristor 38 is turned on to energize the coil 36 to close contacts 34 and transistor 44 is made conductive to by-pass switch 40, the latter action ensuring that contacts 34 close in the event of potentiometer 32 being moved from its maximum setting after the timer 42 has operated but before coil 36 is fully energized, a condition which would otherwise result in contacts 34 remaining open with control 30 inhibiting commutation of thyristor 12, whose consequent continuous conduction could cause damage thereto. If the timer 42 is energized by opening of switch 40 instead of closing, then transistor 44 is connected in series therewith and opened when the timer has completed its cycle. When contacts 34 close, an interlock (not shown) operates to maintain coil 36 energized. Thyristor 12 turns off when contacts 34 close, the inhibition of commutation by control 30 ensuring that capacitor 22 remains fully charged and able to resume commutation after contacts 34 are opened and mark-space ratio control is recommenced.
Patent GB-631056-A (GB)
Title: Section for holding glass-partitions without putty
IPC: E04D3/08
Filed: 1947-09-09
Abstract: 631,056. Glazing roofs &c. VANDERMARLIERE, J. Sept. 9, 1947, No. 24721. Convention date, Aug. 21. [Class 20(iii)]   In a glazing bar comprising a web and at least one glass - supporting flange having drainage grooves for rain water and condensation, the web has at least one groove ot section corresponding to one thickened edge of an impervious malleable glass - retaining lamella fixed therein; the lamella may thus be replaced by simple longitudinal sliding. As shown in Fig. 1, the aluminium, plastic, &c. glazing bar 1 has dovetail grooves 3 into which the zinc, lead, &c. lamellµ 4 engage; the rain drainage grooves 6 are larger than the condensation drainage grooves 7, and at the lower end of the bar its base is bent up and provided with an orifice through which the water may flow. The glazing bar may be secured to purlins by feet 10, Fig. 2, having guides 15; a screw 9 passes through the foot into the lower thickened part 2 of the web of the glazing bar while further screws pass through the holes 11 into the purlin. These latter screws may also serve to secure aluminium end blocks 13 holding wood laths 13a which close the space between the pane 14 and the purlin; the blocks 13 may be set at any appropriate angle around their fixing screws, e.g. where the purlins are oblique to the bars 1.
Patent GB-710890-A (GB)
Title: Improvements in and relating to goniometers
Inventor: THOMAS DAVID CALDWELL
IPC: G01S1/02
Filed: 1951-10-23
Abstract: 710,890. Photo-electric goniometers. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 17, 1952 [Oct. 23, 1951], No. 24728/51. Class 40 (3) A goniometer comprises a cathode ray tube on the screen of which is a circular trace, a mask angularly positioned in accordance with the angle to be indicated and an aperture in the mask positioned on the circumference of the trace so that the intersection of the trace and the aperture produces a light pulse which is detected photo-electrically and the phase of which relative to the sinusoidal wave producing the trace is a measure of the angle to be indicated. As shown, sinusoidal voltages differing in phase by 90 degrees are applied to plates 10 of cathode ray tube 1 to produce a circular trace (shown dotted). Mask 2 positioned in accordance with the angle to be indicated by means of gearing, carries an aperture 3 positioned at the radius of the trace so that when the spot passes beneath the trace light reaches a photo-cell 4 which produces an output pulse which is almost rectangular. The trailing edge of the pulse is not vertical due to the after glow of the tube but may be made so by feed-back from the photo-cell output. The pulse may be given a step in each end by covering the ends of the aperture with a translucent material.
Patent GB-331128-A (GB)
Title: Improvements in steam engines
IPC: F01K21/02
Filed: 1929-08-13
Abstract: 331,128. Vorel, F. Aug. 13, 1929. Engine and steam generator in structural combination. - In a single or multiple -cylinder engine, steam is generated, in each cylinder by an electric coil housed in a plate to which water is supplied by a depression in' a rotary valve in the cylinder head. The valve is mounted in a water-cooled casing above the cylinders 7, and comprises cylindrical sections 9 having sockets 10 for holding small quantities of liquid, and exhaust ports 11. The valve parts are connected by slots 12 and keys 13. Water is fed from a pipe 23 to branches 24 controlled by simultaneously-operated valves 25. In each cylinder is a heating-device 19 comprising an electricallyheated spiral coil 36 mounted on the concave surface of a plate 37 on to which the water drops. In a modification, the coil is radially disposed on the plate.
Patent GB-260233-A (GB)
Title: Method of producing a protective coating in water tubes for the purpose of preventing incrustations
IPC: C02F5/08
Filed: 1926-10-05
Abstract: 260,233. B³cher, C. Oct. 21, 1925, [Convention date]. Corrosion, preventing.-A lining of chalk is produced on the inside of an iron water pipe by mixing with the contained water enough calcium hydrate to convert all the free carbonic acid into calcium monocarbonate while at the same time raising the hydrogen ion concentration above the neutrality point. After a period extending sometimes into months a protective lining of chalk is formed on the inner surface of the pipe.
Patent GB-332774-A (GB)
Title: An improvement in or relating to sliver cans
IPC: B65H75/16
Filed: 1929-08-14
Abstract: 332,774. Lister, A. C., and Whiteley, H. Aug. 14, 1929. Ends; bottoms.-A reinforcing ring e of steel or other hard metal is fitted between the binder ring d and the lower portion of a buffer-bottom sliver can, the ring being inwardly shouldered at e<1> to lie between the lower end of the can wall and the inwardly shouldered part d<2> of the binder ring, and bent downwardly at e<2> to lie against the spacing portion d<3> of the binder. The lower end of the reinforcing ring is either bent outwardly as shown at e<3> to lie between the part d' of the binder ring and the bearing plate d<1>, or is bent inwardly and secured to the upper surface of the latter.
Patent GB-749509-A (GB)
Title: Improvements in or relating to agricultural apparatus
IPC: A01M9/00
Filed: 1952-10-04
Abstract: 749,509. Crop-dusting appliances. CALDWELL, E. C. Oct. 2, 1953 [Oct. 4, 1952; Jan. 24, 1953], Nos. 24927/52 and 2102/53. Class 6 (1). [Also in Group XXIX] A tractor-mounted crop-dusting appliance comprises a frame 1 pivoted to the rear of a tractor and carrying a blower 5 with a rearwardly-extending conduit 7 into which powder is fed from a hopper 9, the blower being driven from the power-take-off 4, and the conduit being in two interhinged parts 7A and 7B, of which the rearmost. is lifted by the tractor power-lift 42 through links and cables 25, 28, 40. The invention also includes liquid-spray booms 19 which are raised and lowered with the conduit 7. The conduit terminates in branch-conduits 11, 12, 13 connected by hoses 21, 22 to nozzles 24 carried on a transverse boom 29. The boom is hinged at intermediate points in its length and the lifting cables 46 pass around pulleys 45 and are connected to the boom-ends so that these are hinged inwardly as the conduitpart 7B is raised. The booms 19 are linked by chains to arms 36 joining the conduit 7B to the frame 1 and are fed, by a hose 17 and pump 16, with liquid from a tank 15. The hopper 9 contains a rotary-brush agitator feeding material past an adjustable gate, the brush being driven by a cable 56 from a pulley 64 on the driving-shaft of the pump.
Patent GB-210708-A (GB)
Title: Improvements in or relating to furnace linings, crucibles and the like
IPC: C04B35/00
Filed: 1923-05-14
Abstract: 210,708. Loke, J. J. May 14, 1923. Refractory substances containing titanium compounds.-The slag, consisting chiefly of titanium oxides, which is obtained in the process of manufacturing iron from oxidized titanic iron described in Specification 157,705, [Class 72, Iron &c.], is mixed with a small proportion of a binding agent and used for lining furnaces or making refractory articles.
Patent GB-149863-A (GB)
Title: Improvements in starting gear for internal combustion engines
IPC: F02N1/02
Filed: 1919-10-13
Abstract: 149,863. Juckes, T. C., (trading as Efficient Motor & Engineering Co.). Oct. 13, 1919. Turning-gear.-In a kick starter for motorcycles having an inspection opening in the side of the gear box, the shaft 1 of the starting pedal or handle 2 is mounted in half-bearings 3, 4 in the gear box, the other halves of the bearings being formed in a detachable cover for the inspection opening, so that the shaft 1 and parts mounted on it may be removed without disturbing the other gearing. A gear-wheel 8 mounted loosely on the shaft 1 is always in gear with a wheel 7 on a shaft which can be connected to the engine, and is automatically coupled to the shaft 1 by a sliding clutch member 10 when the pedal is actuated. The clutch member 10 has ratchet teeth 11 for engagement with teeth 9 on the wheel 8, and has a cam-face 12 engaging a cam-face 13 on a fixed sleeve 14 and normally holding the clutch 10 out. of engagement. On actuation of the pedal, the cam-face 12 moves away from the face 13 and allows a spring 16 to move the clutch 10 into engagement. The cam-faces re-engage and withdraw the clutch when the pedal is released, and also if the engine starts backwards. Specifications 142,030, [Class 80 (ii), Gearing, Variablespeed &c.] and 149,862, [Class 80 (iv), Mechanism not otherwise provided for] are referred to.
Patent GB-1136586-A (GB)
Title: Improvements in machines for the production of moulded elements
IPC: B29C33/00
Filed: 1966-06-06
Abstract: 1,136,586. Injection moulding machines. H. REICHENECKER, [trading as FIRMA HANS REICHENECKER STOROPACK]. 6 June, 1966 [14 Aug., 1965], No. 25068/66. Heading B5A. In a machine for moulding articles of expanded polystyrene &c. comprising a fixed mould carrier 5<SP>1</SP> and a plurality of movable mould carriers 5, 5<SP>11</SP>slidably mounted on guide rods 4 for movement by a ram 7, the carriers, when pressed together with the mould parts 21, 22 secured thereto, constitute closed chambers through which heating and cooling fluids can be passed. Pre-expanded polystyrene is injected into the moulds through pipes 35 and pumps 37 by means of an injector which automatically closes after filling. The polystyrene is foamed by steam at greater than 3 atmospheres pressure passing from steam lines 25, 26 into the space around each mould. Cooling water containing entrained compressed air then passes through connections 30 to cool moulded products 18, which can be ejected pneumatically on to a conveyer 45. The carriers 5-5<SP>11</SP> are connected by links 11 having slots 12 to receive pins 13 projecting from the sides of the carriers. Spring-biased washers (16) bearing on the links 11 (Fig. 4, not shown), control the opening and closing of the carriers. The carriers are supported on the rails 4 by bushes (10) secured to mounting eyes (8), Fig. 5 (not shown), at the corners of the carriers. The mould parts are clamped together by means of a cross-piece (39), Fig. 7 (not shown), which is rotatable about a spindle (41) by means of a pneumatic cylinder (40) so as to come between the fixed wall 3 and rollers (43) carried by support members (42) on the carrier 5<SP>11</SP>. Only part of each mould cavity need be utilized, the unused part being blanked off by blind parts.
Patent GB-745822-A (GB)
Title: Improvements in or relating to a method and process for preparing finely divided pigmentary silica
IPC: C01B33/193
Filed: 1952-10-07
Abstract: Finely divided silica is precipitated from an aqueous solution of an alkali metal silicate containing 10-150 gm./l. of SiO2, in the presence or absence of a non-reactive alkali metal salt, by the addition of an acidic substance in an amount sufficient to precipitate substantially all the silica in the solution but insufficient to produce a slurry having a pH below 5, the silicate concentration of the solution, the amount of non-reactive alkali metal salt present, the rate of addition of acidic substance, and the temperature of the solution being correlated to produce a silica having a surface area of 25-200 sq. m./gm. and an average particle size below 0.1 micron on the lines indicated in the Figs. (not shown).  "Acidic substances" which may be used are carbon dioxide, sulphur dioxide, hydrogen sulphide, chlorine, hydrochloric acid, sulphuric acid, nitric acid, hypochlorous acid, phosphoric acid sodium bi-carbonate, sodium bisulphate, disodium hydrogen phosphate, and ammonium chloride.  The alkali metal silicate solution may be used in a concentration of 10-100 gm./l. of SiO2 and may be sodium silicate having the composition Na2O (SiO2)x where x ranges from 1.65 to 4.0 and containing 7.6-30.45 gm./l. of Na2O.  The time of acidification may be 5-2880 minutes and is preferably greater than 3 hours.  The temperature of the solution may be 10-100 DEG C.  The non-reactive alkali metal salt may be sodium chloride bromide, sulphate, nitrate or phosphate, or the corresponding potassium or lithium salts. 5-100 gm./l. of sodium chloride may be used.  At a reaction temperature of 50-75 DEG C. and an SiO2 concentration of above 50 gm./l. the presence of alkali metal salt may be dispensed with.  The alkali metal content of the precitation silica may be reduced by reslurrying and treating with acid.  The silica is recovered and dried in known manner as at 100-150 DEG C.  It may be partially calcined.  The product may be incorporated in GR-S rubber. Specifications 294 681, 299,483 [both in Class 1(ii)], 561,750 and 745,890 are referred to.
Patent GB-1406448-A (GB)
Title: Hoist devices
IPC: B66D1/30
Filed: 1972-05-30
Abstract: 1406448 Cable hoisting system; reels HAVEN ERECTION & ENG Ltd 30 May 1973 [30 May 1972] 25226/72 Headings B8B and B8M An adapter for inclusion in the cable system of a hoist for producing a two cable output from a one cable input, comprises a large diameter drum 13A and two smaller like diameter drums 14A, adapted to revolve together, preferably due to being integral. Cables 4A, 4B extend from motor driven winches 2A, 2B over sheaves 5 to be wound on the large drum portions 13A, 13B of two adapters 12A, 12B and pairs of cables 15A, 15B are wound in the opposite direction to the cables 4A, 4B on to the smaller drum portions 14A, 14B and extend over sheaves 6, 7, 8 to a grab 16, for supporting and operating the grab. The sets of sheaves 7 and 8 are mounted on trolleys movable through cables and a trolley motor, along a track on an overhead support, the trolley carrying the sheaves 7, moving at only half the speed of the trolley carrying the sheaves 8. In the embodiment of Fig. 4 (not shown) the integrally formed three part drum includes grooved surfaced large and small diameter portions having flanges at the ends thereof and being freely mounted on a shaft through bearings.
Patent GB-447651-A (GB)
Title: A process for improving fibres and textile materials
IPC: D06M13/12
Filed: 1935-09-11
Abstract: Fabrics, threads, or fibres comprising fibres of regenerated cellulose or cellulose derivatives are rendered crease-resisting and water repellant by treating with a solution or dispersion of a wax-like substance and a soluble soap or a fatty acid, and then with an aldehyde preferably formaldehyde, a lower aliphatic carboxylic acid preferably acetic acid, and a soluble salt of a polyvalent metal which forms water insoluble soaps.  The invention may be applied to artificial staple fibres which are to be mixed and worked up with natural fibres.  In an example, a viscose fabric is treated at 60 DEG C., with an emulsion comprising 50 gms. of hardened sperm oil, 10 gms.  Marseilles soap and 5 gms. pearl hide glue in 1 litre of water, it is then squeezed and treated with a solution containing 5 per cent of formaldehyde, 5 per cent glacial acetic acid and 5 per cent of alum, after which it is squeezed and dried for 20 mins. at 150 DEG C.  Other suitable waxes are spermaceti, carnauba wax, candelilla wax, beeswax, Montan wax, ceresin or paraffin.  In place of formaldehyde, addition products or polymers thereof may be used, or other aldehydes or substances yielding aldehydes.  The acetic acid may be replaced by formic, propionic, lactic, succinic or tartaric acid.  In place of alum, alkaline earth, magnesium or zinc salts may be used.  Instead of an emulsion of wax and soap, a solution of a wax and a fatty acid in an organic solvent, e.g. a chlorine derivative of a hydrocarbon, may be employed.ALSO:An emulsion for treating textiles comprises glue, soap, and wax, e.g. hardened sperm oil, spermaceti, or other vegetable or animal wax such as carnauba wax, candelilla wax, beeswax, montan wax, ceresin or paraffin or similar high molecular hydrocarbons. In an example 5 gms. of pearl hide glue is socked for 12 hrs. in 20 gms. of water and boiled, to this is added a solution of 10 gms. of Marseilles soap; 50 gms. of hardened sperm oil are melted and added to the mixture, which is made up to 1 litre with further water; the mass is then passed through a homogenizing machine; after cooling a paste is obtained which on dilution with hot water yields uniform and stable emulsions.
Patent GB-154042-A (GB)
Title: Improvements relating to toy buildings and other structures
IPC: A63H33/12
Filed: 1919-10-15
Abstract: 154,042. Hobran Engineering Co., and Morgan, A. F. Oct. 15,1919. Machine tools and the like; mechanical constructions, details for building up.-An element for building toy structures consists of a metal plate a, Fig. 4, of triangular or other shape, having a flange b at each edge and perforated to receive bolts. Fig 1 shows a model drilling machine built up from the elements. The ends of the flanges are bevelled to give clearance between them.
Patent GB-861856-A (GB)
Title: Improvements relating to strain gauges
IPC: G01L1/22
Filed: 1957-08-10
Abstract: 861,856. Resistance strain gauges. AMERY Ltd., W. & T. Aug. 10, 1957, N0. 25309/57. Class 40 (1). Resistance strain gauges for use in measuring vibrations and fatigue endurance are made with the resistance wire screen at one end and the fixing points of the connecting wires at the other, the wires of the screen being extended and joined to leads at a point which is distant from the screen by an amount greater than the length of the screen. Thus the screen is located at a position of maximum alternating stress and the fixing points at positions of minimum alternating stress. When the test piece is of varying cross-section (Fig. 1) the resistance element is located at the thinnest part 1 and the leads 4, 5 at a wider part. In the case of a uniform piece 8 (Fig. 3) a special piece 9 is welded on to it to give support, the resistance element being at 10 as before. Preferably, the distance of the fixing points from the nearer end of the resistance element is one to three times the length of the latter. The extension of the screen wires may be of uniform crosssection (Fig. 2, not shown) or gradually increasing cross-section (Fig. 4, not shown).
Patent GB-334053-A (GB)
Title: Preparation for waterproofing cement used in buildings and process connected therewith
IPC: C04B28/02
Filed: 1929-08-20
Abstract: 334,053. Stewart, A. Aug. 20, 1929. Concretes and mortars, cement.-A composition for waterproofing cement mortars and concretes is made of 4 lb. of soft soap. 3 gills of ammonia, “ lb. of alum, 1 lb. of washing soda. ¢ lb. of lard, 2 gills of boiled linseed oil and 5 gills of water. The ingredients are mixed, brought to the boil and allowed to cool slowly. One gallon of the composition is mixed with three barrow loads of sand and one bag of cement to form a waterproof mortar.
Patent GB-751079-A (GB)
Title: Bowl for water closets
IPC: E03D11/06
Filed: 1954-09-01
Abstract: 751,079. Sanitary closets. IDEAL-STANDARD SOC. PER AZIONI. Sept. 1, 1954 [Jan. 14, 1954], No. 25380/54. Class 26. A closet bowl is formed with a flushing conduit A forming part of its internal structure and having no means for connection to a flushing cistern above the floor level, the water being fed to the conduit from beneath the bowl. The orifice C provides water for priming the syphon.
Patent GB-1137785-A (GB)
Title: Printing of nitrogenous fibers
IPC: D06M15/41
Filed: 1967-06-01
Abstract: 1,137,785. Sulphonated phenolic resins. CIBA Ltd. 1 June, 1967 [3 June, 1966], No. 25406/67. Heading C3R. [Also in Division D1] In Example 1 a product obtained by sulphonation of 4,4<SP>1</SP>-dihydroxydiphenylsulphone in acetic anhydride is mixed with that obtained by sulphonation of ortho-cresol in acetic anhydride and the reaction mixture heated at 100-105 C. with aqueous formaldehyde 30%. In Example 3, 4,4<SP>1</SP>-dihydroxydiphenylsulphone is sulphonated in acetic anhydride at 100 C. and then diluted, this mixture being heated at 100-105 C. with aqueous formaldehyde 30%.
Patent GB-692047-A (GB)
Title: Improvements in or relating to hydrostatic force or weight measuring apparatus
Inventor: BRIERLEY PAUL
IPC: G01G5/00
Filed: 1950-10-19
Abstract: 692,047. Weighing-apparatus. DUNLOP RUBBER CO., Ltd. Sept. 11, 1951 [Oct. 19, 1950], No. 25431/50. Class 143 [Also in Group XIX] A hydraulic capsule for use in a weighing or force measuring apparatus comprises members 1, 2 having frusto-conical interiors, a plate 11 having a V-shaped periphery, a resilient sealing member 13 compressed between the plate and members 1, 2 and an oil space 3 communicating through a duct 15 with a weight calibrated pressure gauge (not shown). Member 2 is cut away at 6 to allow the load support to bear on plate 11, and a second duct 16 is provided to charge the capsule with oil. , The sealing member 13, which is made from either rubber or synthetic rubber, is seated in members 1, 2 at 10 to inhibit axial movement thereof during use.
Patent GB-765366-A (GB)
Title: Improvements in or relating to devices for joining recording tapes
Inventor: ARBIB RICHARD
IPC: G03D15/04
Filed: 1954-09-02
Abstract: 765,366. Cutting-devices. MULTICORE SOLDERS, Ltd. Dec. 14, 1954 [Sept. 2, 1954], No. 25520/54. Class 31 (1). [Also in Group XXXVIII] The ends of two tapes are joined by placing them in a channel-shaped member 1, clamping them in position by swingable clamps 6, 7, trimming the ends of the tapes by a razor blade which is guided in an oblique groove 5 in the member 1, and then applying an adhesive joining strip. Thereafter, the adhesive strip is trimmed by a razor blade guided in grooves 4 of the member 1.