baber/WOPTO huggingface dataset:
Patent GB-290190-A (GB)
Abstract: 290,190. Brunsviga-Maschinenwerke Grimme, Natalis, &, Co., Akt.-Ges. May 9, 1927, [Convention date]. Multiplying and dividing apparatus. - A pin-wheel machine is provided with two totalizing- counters mounted on a common slide, either counter being operative or inoperative independently of the other and both counters being transversely displaceable for independent transmission of their amounts to the setting-mechanism. By these provisions the machine is enabled to perform calculations such as evaluating continued products and summing or differencing them, the intermediate products as well as the final result being also rendered available. The usual slide 4 carries a lower counter 7 in train with the pin-wheels 2 through gears 9, 10 &c., and also an upper counter 6 arranged in a frame 13 rockable and transversely slidable upon an axis 14. This second counter may be rendered inoperative by swinging a handle 15 from position A to position B so as through an eccentric 14 and link 18 to rock the frame 13 to disengage the gears 8 from the wheels 2. The main slide 4 engages at 25 with a rack 26 superposed on which is a plate 22 adapted to slide both laterally and fore and aft. and having a tooth 23 to engage a rack 24 rigid with the frame 13. Engaging cam slots 30, 31 in the rack 26 and plate 22 is a pin 32 on a bar 33 caused to slide longitudinally by a mutilated pinion 47 on a shaft 45, which also controls the fore and aft position of the plate 22 by means of a cam 46. A product received on the lower counter may be transmitted to the setting- mechanism after a part rotation has been given to shaft 45 as defined by a stop 50. This movement locks the frame 13 against lateral displacement owing to the plate 22 being advanced into locking engagement with the rack 24, and also slides the bar 33 rearwardly and effects through pin 32 and cam slot 30 a slight shift of rack 26 and therefore of slide 4 to the left to place the counter 7 in the transmitting position. If the shaft 45 is rotated still farther until the handle 52 meets another stop 51, the pin 32 acts upon both slots 30, 31 to slide the lower counter into an inoperative position and the upper counter into the transmitting position.
Patent GB-1510196-A (GB)
Title: Rotor wheel for high-speed turbo-machines
IPC: F01D5/30
Filed: 1975-07-10
Abstract: 1510196 Fixing turbomachine blades MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 10 July 1975 [28 Aug 1974] 29056/75 Heading F1T Turbomachine blades 1 are mounted for rotation with a thin-walled hub 10 by an axial pin 2 passing through each blade root and disposed radially within axially spaced fibre-reinforced retaining rings 7. The latter may be of boron, glass or carbon fibre embedded in a matrix. To evenly distribute centrifugal loads each pin 2 engages rings 7 via arcuate segments 4. Each of the latter may be common to two or more pins. The respective end segments 3 carry projections 13 slidably engaging radial slots in hub 10 and in front end ring 9 bolted to the hub at 11. Alternatively the projections may be on pins 2. In a modification Figs. 4, 5 (not shown), each pin is bolted at its rear end to one of a series of tangs (20) formed between axially extending slots (22) in the hub. The latter may be cylindrical or frustoconical.
Patent GB-604946-A (GB)
Title: Improvements relating to the heating, ventilation and humidification of buildings and other like structures
IPC: F28D1/02
Filed: 1945-11-02
Abstract: 604,946. Ventilators. WOOD, E. Nov. 2, 1945, No. 29107. [Class 137] In ventilating buildings provided with horizontal steam or hot water pipes D one or a number of electric motors A are clipped to the pipe at intervals and have a fan F at each end of their armature shaft, encircled by a tubular casing G, and causing an air current to be forced in opposite directions parallel to the pipe. Means for moistening the air may be provided.
Patent GB-684124-A (GB)
Title: Method of alkylation of aralkylation of arylmethyl methyl ketones
IPC: C07C45/68
Filed: 1950-11-28
Abstract: Arylmethyl methyl ketones are alkylated or aralkylated with an alkylating or aralkylating agent in the presence of sodium or potassium hydroxides.  Alkylating agents mentioned are alkyl halides, sulphates and sulphonates and benzyl chloride is specified as an aralkylating agent.  Substitution takes place on the methylene carbon atom.  Solvents, e.g. dioxane, methanol and ethanol may be present. Approximately equimolar quantities of reagents are taken, the reaction being initiated at ordinary temperatures and completed by heating under reflux.  In examples, phenyl acetone is reacted in the presence of sodium hydroxide with (1) methyl iodide, (2) n-propyl iodide, (3) allyl bromide in absolute methanol or ethanol, (4) benzyl chloride, (5) n-butyl bromide in absolute methanol, (6) dimethyl sulphate, (8) methyl, ethyl and n-propyl p-toluene-sulphonates and (12) benzyl chloride in dioxane; (9) p-tolylacetone, (10) p-chlorophenylacetone and (11) p-carboxyphenylacetone are methylated with methyl iodide in the presence of sodium hydroxide and in (7) phenylacetone is reacted with n-propyliodide in the presence of potassium hydroxide.
Patent GB-866773-A (GB)
Title: Improvements in and relating to ceramic materials
Inventor: HAENELT KARL JOSEPH WALTER
IPC: C04B35/48
Filed: 1956-09-25
Abstract: A ceramic is made by heating at 1150 DEG C. to 1300 DEG C. a mixture composed of 20-60% steatite or talc and 8-30% zirconium silicate or oxide together with fluxing and other materials to give a product of the composition in per cent by weight Silica 34,2-54,5; alumina 5,6-8,5; magnesia 15,2-22,1; zirconia 5,3-22,1; baria 7,6-21,2, and other oxides 1,7-2,0.  The other materials specified are clay 15-25%; magnesium carbonate 5-15%; and barium carbonate 10-25%.
Patent GB-603900-A (GB)
Title: Improvements in or relating to water-tight electric light fittings
IPC: F21V31/00
Filed: 1945-11-05
Abstract: 603,900. Electric light fittings. McGEOCH & CO.. Ltd., W., and WATT, H. S. Nov. 5, 1945. No. 29280. [Classes 75(ii) and 75(iv)] A watertight electric light fitting comprises a cap 10 with an annular surface 11, a gland ring 17 embraced by a flange 12 on the cap and secured to it by bolts 18, and compressing between . it and the annular surface a rubber or like ring 16 of U-shaped crosssection, adapted to embrace the outturned rim 15 of a lamp-enclosing globe 14. The gland ring 17 may carry a globe protecting cage 21.
Patent GB-1246069-A (GB)
Title: Improvements in polarising spectacles based on a double helix structure of light and other electromagnetic waves
Inventor: PEDRICK ARTHUR PAUL
IPC: G02C7/12
Filed: 1970-06-17
Abstract: 1,246,069. Goggles. A. P. PEDRICK. June 17, 1970, No. 29346/70. Heading G2J. A pair of spectacles comprises eye-pieces which are formed of two separate relatively rotatable discs. Each disc is made of opaque material except for a large number of parallel slits in its molecular structure, each slit having a width of at least 7À0 x 10<SP>-5</SP> cm. On rotation of the discs, the amount of light passing through the slits is varied.
Patent GB-518855-A (GB)
Title: Improvements in or relating to urinal stalls
IPC: E03D13/00
Filed: 1938-10-11
Abstract: 518,855. Urinals. ASSOCIATED CLAY INDUSTRIES, Ltd., and MYATT, J T. Oct. 11, 1938, No. 29400. [Class 26] A urinal stall, of the type in which a stall 10 and tank 11 are combined to form a unit of which the tank constitutes the bounding upper part of the stall, is characterized in that base 22 of the tank has slots or perforations 23 disposed in a shape substantially similar to a horizontal cross-section of the stall surface so that direct passage of the flushing liquid is allowed over substantially the whole surface of the stall. In the form shown, water passes continuously or intermittently from a pipe 21 into a pivoted bucket 19 that overturns when a predetermined liquid level is reached and pours water into the tank 11 and thence through holes 23 over the stall surface. In a modification, the bucket may be fixed and provided with a syphon that discharges the contents to several outlets above the bottom of the tank. The stall unit may be formed integrally from glazed fireclay, earthenware or vitreous china.
Patent GB-1082208-A (GB)
Title: Caps for feeding bottles
Inventor: HARTLEY PHILIP SAXTON
IPC: A61D7/00
Filed: 1963-07-25
Abstract: 1,082,208. Feeding appliances. BENGER LABORATORIES Ltd. July 17, 1964 [July 25, 1963], No. 29419/63. Heading A5X. [Also in Division B8] A cap for a feeding bottle for animals includes a nipple or teat, part of which at least is formed of metal, the body of the cap being of a synthetic thermoplastic material capable of withstanding being sterilised in an autoclave. As shown, 50% of the nipple is of stainless steel and the remainder of the nipple and the body of the cap are of nylon. The whole of the nipple may be of metal. The two parts of the cap may be screw-threaded together or, as shown, have inter-engaging ribs and grooves and are push-fitted together or are moulded together.
Patent GB-1448012-A (GB)
Title: Invalid hoists
IPC: A61G7/10
Filed: 1973-06-21
Abstract: 1448012 One-way brakes D R JAMES 10 June 1974 [21 June 1973] 29475/73 Heading F2E [Also in Division B8] An invalid hoist (see Division B8) comprises an upstanding column 101 and an arm (6) at whose outer end is fixedly mounted a wheeled carriage (7) along which a tubular load support member (11) is movable under the action of a cable (24) which is attached at either end to points (25) at the top and bottom of the member (11) and internally thereof, Fig. 2 (not shown), the cable (24) passing about a drum 127 located in a gear-box 104, so that by winding a handle 105 in a clockwise direction the cable (24) produces elevation of the member (11), the handle 105 being mounted on an input shaft 134 of the gear-box 104 through a ratchet brake arrangement 135 which holds the member 11 and the load thereon against gravity in any position throughout the lifting range. The cable drum 127 which is rotatably mounted on a spindle 135<SP>1</SP> has a spur gear 137 bolted to one end thereof which is in mesh with a spur gear 136 mounted on the shaft 134 and which can turn relative to the shaft 134 but is driven from the shaft through a load-limiting friction clutch 138. The brake arrangement 135 comprises a ratchet wheel 139 which is normally fast with the shaft 134, being clamped up between a flange 140 on the shaft and an internally threaded insert 141 of the winding handle 105. The ratchet wheel 139 is clamped through friction discs 142, 143 disposed on opposite sides of the wheel 139, and a fixed ratchet plate 144 engages the ratchet wheel 139 to hold the member (11) and load mounted thereon against gravity at any position. When the handle 105 is wound clockwise to raise the member 11 the ratchet wheel 139 is tightened on the shaft 134 and the ratchet plate 144 allows the ratchet wheel 139 to turn in the load-raising direction but engages the ratchet teeth to prevent return movement while the ratchet wheel 139 is fast with the shaft 134. When the handle 105 is turned anti-clockwise to lower the member (11) it cannot turn on the shaft 134 as the ratchet wheel 139 is held by the fixed plate 144 and thus the handle 105 unscrews through a small amount sufficient for the shaft to turn, under the gravitational effort of the load, within the ratchet wheel 139, until the amount by which the handle 105 has unscrewed is taken up and the ratchet wheel 139 is again engaged and further movement is prevented. Thus lowering of the member (11) proceeds on a step basis.
Patent GB-1106876-A (GB)
Title: Mounting of metal foils permeable only to a specific gas
IPC: B01D53/22
Filed: 1966-07-01
Abstract: 1,106,876. Welding by pressure. PROTOTECH CO. 1 July, 1966 [23 Aug., 1965], No. 29617/66. Heading B3R. A thin metal foil of a metal which is permeable only to a specific gas is mounted on a porous or perforated metallic member by pressure welding at a temperature well below the melting point of the metals concerned, the welding process being carried out in an inert or reducing atmosphere. The support may be a wire gauze or a porous sintered metal member. Where the gas to which the foil is permeable is hydrogen the metal foil may be palladium or an alloy thereof, nickel, cobalt iron, an iron alloy or vanadium. Silver foil is stated to be selectively permeable to oxygen. The support for the foil may be of e.g. nickel, silver, steel, brass or bronze. The inert or reducing gas is preferably hydrogen but may be nitrogen, carbon dioxide or natural gas. Similar or dissimilar foils may be welded simultaneously or consecutively to the two sides of the supporting gauze and one metal foil may be welded to another to eliminate any undesired holes in the foils. Alternatively to seal such holes the foil may be coated with a pasty suspension of a metal e.g. palladium, or compound thereof and the coated foil then baked. The coated foil may form an anode in a fuel cell, the gauze or sintered support serving to short circuit closely spaced regions of the foil to provide electrical connection to the foil with low internal resistance.
Patent GB-216053-A (GB)
Title: Improvements in or relating to locks for railway, vehicle and like doors
IPC: E05B65/36
Filed: 1923-11-24
Abstract: 216,053. Hall, G. W. Nov. 24, 1923. Electrically or pneumatically controlled fastenings.-A fastening for railway-carriage &c. doors comprises a bolt mounted in a casing in the jamb of the door and shot by pneumatic or electric means acting through a spring on the bolt means being provided whereby the bolt may be withdrawn by a key independently of the pneumatic or electric means. One arm W of a lever R pivoted in the casing is depressed against the action of a spring E by the power actuating means through a surong spring X, the other arm acting on a loose washer Q and weak spring T to shoot the bolt V. The spring T allows the bolt to be retracted by a door closing after the bolt is shot and also allows retraction of the bolt by a key fitting in the shaped end of a spindle F carrying a lever G connected to the bolt by a chain H.
Patent GB-1184519-A (GB)
Title: Subscriber Subset for PCM.
Inventor: MCNEILLY JOSEPH HOOD
IPC: H04M9/02
Filed: 1968-06-21
Abstract: 1,184,519. Substation circuits. STANDARD TELEPHONES & CABLES Ltd. 21 June, 1968, No. 29765/68. Heading H4K. In a communication system in which subscribers are distributed round a unidirectional loop circulating time division multiplex PCM codes, each substation in the loop provides signal regeneration and in order to avoid disruption of the whole system should a substation power supply fail each substation is connected into the loop by a relay energized from the power supply, failure of which releases the relay to disconnect the substation and provide continuity in the loop. The relay may operate when the substation power supply is at about 90% and release when the power supply falls to below 60%.
Patent GB-1435591-A (GB)
Title: Liquid crystal devices
IPC: G09F9/35
Filed: 1973-06-22
Abstract: 1435591 Modulating light WESTERN ELECTRIC CO Inc 22 June 1973 [23 June 1972 (2)] 29766/73 Heading H4F The molecules of one side of a liquid crystal layer are given a tendency to align in a single predetermined direction by the layer being in contact with a surface of non-liquid crystalline material containing a plurality of substantially parallel linear elevational variations of between 5 Š and 10<SP>4</SP> Š, spaeed by from 1 x 10<SP>4</SP> to 2 Î 10<SP>4</SP> Š. A device incorporating such an arrangement may be a light modulator, in which the alignment in the predetermined direction may occur either before or after the application of a suitable constraint, e.g. a magnetic or electric field, or a mechanical or thermal signal, or it may be a passive optical polarizer wherein alignment necessarily occurs as a result of the elevational variations. Such a device often has a second aligning surface in contact with the other side of the liquid crystal layer, the alignment direction not necessarily being parallel. In the case of the passive polarizer the liquid crystal material preferably contains a dichroic dye to increase the polarizing effect. Surfactants may be used either to aid the alignment of the liquid crystal material in the predetermined direction, or, in the case of a modulator wherein alignment occurs after energization, to produce a different alignment before energization. For example a nematic phase may be homotropically aligned per se and align parallel to the surface and to the elevational variations when an electric field is applied. The non-liquid crystalline surface may be partially covered by the elevational variations for a localized effect, and/or different areas of the surface may contain pluralities of elevational variations which extend in different respective directions. The elevational variations may be produced by mechanical scoring, casting, etching, photolithography, ion bombardment or melting, vapour or liquid deposition, or by laser interference techniques, inter alia. The surface thus treated, e.g. if a substrate or an electrode and/or dielectric layer or a photo-resist over the substrate, may be the surface contacting the liquid crystal layer, or alternatively a treated substrate may underlie a thin film electrode and/or dielectric layer which contacts the liquid crystal layer and conforms to the elevational variations in the substrate surface. Many known types of liquid crystal light modulators are referred to, e.g. dynamic scattering, the fast turn-off mode, those with memory scattering effects or showing a change of state or phase, those including additives such as dichroic dyes, and those having a twisted nematic structure. They may be reflective or transmissive, and may include integral plane polarizers.
Patent GB-502704-A (GB)
Title: Improvements in fan impellers and blades therefor
IPC: B64C11/16
Filed: 1937-11-01
Abstract: 502,704. Screw fans. SPENCER, T. D., and PATENT LIGHTING CO., Ltd. Nov. 1, 1937, No. 29871. [Class 114] A screw fan has blades of concave form made from sheet material of uniform thickness and each blade has a decreasing width from root to tip whilst the trailing portion of each blade is bent, the surface thereof being generated by a straight line making a trailing angle with the line in the plane of rotation and passing through the longitudinal axis of the fan blade. The blades whilst of screw form and concave at most of their surface are provided with a trailing portion 12 which is bent away and is formed by a generator 13 inclined to the radial direction. The blank is a trapezium with rounded edges, the root 8 being wider than the tip 9 and the trailing edge 10 making an angle of 17‹, with limits of 5‹ and 25‹, with the leadirig edge 11. The leading edge may be radial or lie between a 10‹ backward and a 15‹ angle forward thereof. The pitch, lengths of outer and inner edges and radial length of the blade are in the ratio of 2:4:6:9.
Patent GB-1366504-A (GB)
Title: Production of carbonyl compounds
IPC: C07D315/00
Filed: 1972-06-21
Abstract: 1366504 Production of carbonyl compounds IMPERIAL CHEMICAL INDUSTRIES Ltd 21 June 1972 [25 June 1971] 29909/71 Heading C2C Esters and/or lactones are prepared by reacting an alkane, a cycloalkane or an aralkane containing at least one aliphatic or group with a carboxylic acid or a functional derivative thereof in the presence of pentavalent vanadium ions. The following compounds are prepared in the examples: cyclohexyl acetate, a mixture of sec-n-octylacetate, γ-lactone of γ- phenyl-γ-hydroxypentanoic acid, γ-neopentyl- γ-methyl-γ-butyrolactone.
Patent GB-821257-A (GB)
Title: Improvements in or relating to writing instruments
IPC: B43K7/02
Filed: 1956-10-02
Abstract: 821,257. Writing instruments. PAPER MATE MANUFACTURING CO. Oct. 2, 1956 [Oct. 3, 1955], No. 29973/56. Class 146(3) An ink supply unit for use in a writing instrument e.g. a retractable ball-point pen, comprises two tubular ink cartridges 20, 22 each provided with a writing tip .at one end and an open end, and connecting means at the open end of one cartridge receiving and holding the writing tip of the other cartridge while leaving an air passage between said open end and the atmosphere. A tubular connector device 40 is formed in one piece of a resilient plastic material e.g. moulded polyethylene resin. The external shape of the connector is such that it can be wedged in the open end 24 of one of the units and the internal shape is such that the writing tip 26 of the other unit may be wedged therein. The interior surface is fluted to provide air ducts which co-operate with channels 56 formed radially in the stop flange 48 of the connector to supply air to the upper surface 54 of the ink in the unit 22. The relative positions of the units 20, 22 can be changed e.g. if one of the writing points becomes inoperative, and the units may contain ink of different colours.
Patent GB-144993-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H19/11
Filed: 1919-12-01
Abstract: 144,993. Adt Akt.-Ges., Geb. June 13, 1919, [Convention date]. Switches, q u i c k - action.-A s w i t c h which, when turned in either direction, alternately makes and breaks the circuit of an operating-spindle carrying loosely an insulating - barrel e provided with a bridging-contact i and connected with the driving-spindle by a spiral spring g. The terminals c on the base are connected to radially-disposed spring-plunger contacts a which, in the contact position, engage with notches in the bridging contact, as shown. When the handle is rotated in either direction, the driving-spring is strained but the barrel is prevented from rotating by the locking action of the plungers in the notches until this action is overcome, whereupon a quick break results and the plungers engage with other notches in the barrel. The barrel may be enlarged, as shown in Fig. G, so as to carry the plungers engaging notched contacts or notches in the base in the contact and non-contact positions of the switch respectively. The contact plungers may be arranged in one disk to engage contacts without notches and the locking function may be performed by non-contact plungers in a second disk below the first engaging with notches in the two positions; or both sets of plungers may be contact plungers so as to constitute a two-pole switch.
Patent GB-1058062-A (GB)
Title: Improvements in and relating to selector devices
IPC: D06F34/30
Filed: 1963-07-29
Abstract: 1,058,062. Time switches. W. HOLZER. July 29, 1963 [Sept. 11, 1962], No. 29982/63. Heading H2B. A programme controller for washing machines, for example, can be driven at a high speed to a selected position and then proceeds at normal programme speed. A timer motor 26 drives a programme indexing disc 43 via gearing 25, 24, and cam tracks 23 thereon operate contacts 21. Manually depressible plungers 36, having buttons such as 11 and 12, are arranged around the disc 43 at positions corresponding to specific programme operations and are urged inwards by an annular spiral spring 39. The lower ends of the plungers 36 engage in slots in a disc 17 carried on a sleeve 29 which is loose on shaft 18 and also carries a contact member 33. A spring 31 urges members 33, 29 and 17, and hence plungers 36, upwards. In this condition member 33 bridges contacts (Figs. 5 and 6, not shown) in series with the programming contacts. If a plunger (for example, 11, as shown) is depressed a projection 40 thereon latches under disc 43 and disc 17 is depressed as shown. This moves contact 33 to open the circuit to the programming contacts and to bridge contacts causing the disc 43 to rotate at a higher speed. When the desired programme operation is reached a slot in the edge of disc 43 becomes aligned with projection 40 on the depressed plunger and allows the plunger to rise, thereby returning the controller to normal programme speed and restoring the circuit to the programming contacts. The disc 43, plungers 36 and associated preselection mechanism may be remote from the programming contacts and driven therefrom by means of a flexible connection (Fig. 5, not shown).