baber/WOPTO huggingface dataset:
Patent GB-196001-A (GB)
Abstract: 196,001. Burns, W. A. Oct. 13, 1921. Multiplying and dividing apparatus.-In a device for comparing the equivalents of weights, money, &c. in different systems or calculating percentages in which laterally movable slides carry figures which can be exposed through apertures in the face of the casing the slides have the figures arranged in a plurality of rows and the apertures are arranged in a staggered, zigzag, or inclined manner. As shown in Fig. 1, for the conversion of avoirdupois weight to kilograms the face of the casing a has a staggered or zig-zag arrangement of apertures c and openings e in which are displayed respectively the resultant figures and the numeral scales of the slides b. The setting of the slides b is effected by a style or the like which engages the appropriate indent or hole d and moves the slide to the right until the style engages a bar h secured to the casing, the setting being indicated through an aperture f. The reciprocal conversions may be obtained by a corresponding arrangement of apertures on the other side. of the casing. In Fig. 2, which shows the application to the calculation of the, interest for one day on a sum of money at different rates, viz. 5, 5¢, and 6 per cent, the apertures are arranged in diagonal or inclined lines. A bar k with a coloured slide l is provided for the purpose of indicating the particular section of the elide for the time being in use and washable writing tabs i are provided for summing the partial products.
Patent GB-369493-A (GB)
Title: Improvements in or relating to temperature regulating devices for refrigerators or the like
IPC: C09K5/08
Filed: 1931-07-08
Abstract: 369,493. Thermally-actuated valves. ELECTROLUX, Ltd., 153, Regent Street, London. - (Assignees of Platen - Munters Refrigerating System Aktiebolag; 2, Norrmalmstorg, Stockholm.) July 8, 1931, No. 19657. Convention date, July 8, 1930. [Class 135.] The Specification as open to inspection under Sect. 91 (3) (a) comprises a valve 16, Fig. 2 (Cancelled), actuated against the resistance of a spring 19 by a bellows member 22 in a chamber 23 containing liquefied sensitive medium of a thermostat. A groove 15 in the valve, controls the flow of cooling water through pipes 10, 11, and the flow of water may control the supply of energy to refrigerating apparatus as described in Specification 308,773, [Class 135, Valves &c.]. This subject-matter does not appear in the Specification as accepted.
Patent GB-686543-A (GB)
Title: Improvements in or relating to apparatus for cutting lengths from a web of paper, cardboard or similar material
Inventor: PIPER RONALD NEWMAN
IPC: B41K3/68
Filed: 1949-07-26
Abstract: 686,543. Cutting paper &c. webs. POWERS-SAMAS ACCOUNTING MACHINES, Ltd. June 19, 1950. [July 26, 1949] No. 19660/49. Class 31 (i). [Also in Group XVI] In an apparatus for cutting lengths from a web of paper, cardboard, or similar material, a positively rotated feed roller feeds the web continuously to a pair of knives movable through circular paths in opposite directions by cranks, so that at the instant of cutting the knives have a linear speed substantially equal to that of the web. A web 1 is drawn from a spool by rollers 6 and 7, the roller 6 being spring-urged towards the roller 7 which feeds the web continuously at a constant linear speed. The roller 7, apart from driving a printing roller 8 through gearing, serves as a platen roller for that roller which is inked by rollers 9 and 10. A knife 13 has a straight cutting edge 15, while a knife 14 has a cutting edge 16 of V or inverted V-form. The knife 14 is attached to plates 25 pivotally mounted by plates 26 on slotted plates 23 and 24, adjustable screws 44 on the knife 14 being urged into engagement with stops 42 by springs 41, thus permitting relative adjustment of the cutting edges 15 and 16. The plates 23, 24 are supported by rotatable cranks 17 and 18, while sliding blocks 27, carried by further rotatable cranks 17 and 18 support the knife 13 and engage slots 28 in the plates 23, 24. Thus, as the four cranks are rotated synchronously with the roller 8 through gearing, the knife 13 is reciprocated by movement of the blocks 27 along the slots 28. Also, the knives 13 and 14 move in circular paths about the axes of stub shafts 19, 20 associated with the cranks 17 and 18, the radius of the circular paths being slightly greater than that of the roller 7, such that the knives have a component of movement in the direction of the web feed and move at substantially the same linear speed as the web. The cranks are so timed that cutting is effected when the knife 14 is at its lowest point and the knife 13 at its highest point. Register between the knives and the roller 8 may be adjusted during operation through a slidably adjustable spiral gear meshing with a gear in the drive from the knives to the roller 7.
Patent GB-1377944-A (GB)
Title: Spinning machine
IPC: D01H1/16
Filed: 1973-04-25
Abstract: 1377944 Spinning machine frames SCHUBERT & SALZER MASCHINENFABRIK AG 25 April 1973 [25 April 1972] 19687/73 Heading DID A spinning machine is composed of similar machine sections I, II in which each section comprises frame walls 81-84 which support longitudinal components 3-7. The longitudinal components 3-7 of adjacent sections are coupled to those of an adjacent section outside the plane of the frame walls 81-84. The distance between the frame walls corresponds to substantially one half of the length of a spinning machine section I or II. The longitudinal components 3-7 may be coupled in the same or offset planes. The machine may be a ring spinning, 2:1 twisting or open-end spinning machine.
Patent GB-1428902-A (GB)
Title: Processing for high permeability silicon steel
IPC: H01F1/18
Filed: 1974-05-06
Abstract: 1428902 Heat-treating silicon steel ALLEGHENY LUDLUM INDUSTRIES Inc 6 May 1974 [7 May 1973] 19804/74 Heading C7A Steel containing in percentage by wt. is hot worked, annealed at 1400-1700‹F for 15 seconds to 2 hours, cooled at a rate equivalent to that in still air, cold-rolled with at least 80% reduction without intermediate annealing, decarburization annealed and finally annealed to produce a cube-on-edge structure providing a permeability of at least 1850 (G/Oe). The initial anneal may be carried out in nitrogen, hydrogen, argon or air.
Patent GB-376949-A (GB)
Title: Improvements in or relating to the lighting of gas burners
IPC: F23Q9/00
Filed: 1931-07-10
Abstract: 376,949. Igniting burners. WELLS, J., Wellington House, Wellington Road, BURTON, M. G., 88, Wellington Road, and DAVIES, A. E., 14, Wilkins Road, both in Bristol. July 10, 1931, No. 19847. Addition to 349,509. [Class 75 (iii).] In means for igniting gas burners as described in the parent Specification, the pilot tube h is provided with a narrow longitudinal slot h<1> or a series of minute perforations or narrow transverse slits for admitting air to the tube substantially throughout its length.
Patent GB-1459438-A (GB)
Title: Gasket moulding apparatus and method
IPC: B29C51/18
Filed: 1974-05-06
Abstract: 1459438 Moulding liners in closures W R GRACE & CO 15 Aug 1974 [23 Aug 1973 6 May 1974] 40045/73 and 19855/74 Heading B5A A closure liner is moulded by heating a thermoplastics material by means of a pressing member which also partly moulds the material, and subsequently completing the moulding using a pressing die at a temperature below that of the heated material. In Fig. 1 closures to be lined are fed from a shoot 1 by star wheels 2, 4, 6, 8 to a pre-heating turret 3 where the closures are heated by conduction from their supports, to an insertion turret 5 where plastics pellets are introduced, to a turret 7 where the pellets are heated and deformed to twice their original diameter, and to a moulding turret 9 where they are shaped finally by an unheated or cooled die. A series of pellets in closures 30 are heated and initially deformed by respective plungers 12<SP>1</SP> on turret 7. The plungers carry PTFE coated and slightly concave pads 18<SP>1</SP> and are heated by conduction from a member 13 which receives heat radiated from an element 15. The support for the closure 30 is similarly heated and the elements 15, 21 are controlled by temperature sensors 35, 36. The plunger 12<SP>1</SP> is adjustably mounted on a carrier 39 which has a roller 251 engaging a circumferential cam track 16<SP>1</SP> to raise and lower the plunger through a slotted stripper plate 28. Insulation 45, 47 is placed between the plunger and the carrier.
Patent GB-794210-A (GB)
Title: Improved models and apparatus for making up models
IPC: A63H33/10
Filed: 1955-07-08
Abstract: 794,210. Constructional toys. HADDOCK, F. G. July 9, 1956 '[July 8, 1955], No. 19879/55. Addition to 744,130. Class 132(3) [Also in Group XXXIII] In place of the I portion of the IC section tubular members of the parent Specification, a flat portion which is not directly opposite the open mouth of the C portion is provided. As shown, two flat portions 13, 14 of a strip 10 forming a tubular member are provided, one portion being on each side of the axis of symmetry passing through the open mouth 15 of the strip. The shape of the clips of the parent Specification is complementary with the sectional shape of the strips, and relative rotation of the clips and strips is thus prevented.
Patent GB-597260-A (GB)
Title: Improvements in or relating to systems for modulating ultra-high frequencies
IPC: H04B14/00
Filed: 1945-08-02
Abstract: 5 9 7 , 2 6 0 . Heat - treating metals. HOLDEN, A. D. June 20, 1945, No. 15766. Convention date, June 20, 1944. [Class 72] In the heat treatment of metal parts to produce a bright finish, the metal parts are introduced into a fused salt bath consisting of 34-50 per cent by weight of potassium chloride, 45-61 per cent of sodium chloride and 0.5-8.0 per cent of sodium fluoride and operated at 1350-1700‹ F., transferred to a second fused salt bath consisting of 30-70 per cent of sodium hydroxide and 70-30 per cent of potassium hydroxide and operated at 400-800‹ F. and then to a third bath consisting of 20-30 per cent of soda ash, 5-15 per cent sodium chloride, 8-12 per cent of cyanide, 10-15 per cent of sodium fluoride and 30-50 per cent of caustic soda operated at 900-110‹ F., the metal parts being retained in each bath until they have acquired the temperature of the bath and after removal from the third bath quenched in cold water. An example of the first bath consists of 43 per cent of potassium chloride, 55 per cent of sodium chloride and 2 per cent of sodium fluoride and of the second equal proportions of the hydroxides and the third 24 per cent of soda ash, 10 per cent of sodium chloride, 10 per cent of sodium cyanide, 12 per cent of sodium fluoride and 44 per cent of caustic soda. The second bath is contained in a steel pot heated by a commercial nickel electrode.
Patent GB-1453017-A (GB)
Title: Paper punches
IPC: B26F1/32
Filed: 1974-05-06
Abstract: 1453017 Punching device TOPPAN MOORE BUSINESS FORMS CO Ltd 6 May 1974 [7 May 1973 28 Dec 1973] 19913/74 Heading B4B A paper punch comprises a base 1 and an upper plate 2 which, together, define a gap 3 for receiving an edge portion of a document to be punched, the base and the upper plate being interconnected by a side wall 4 and end wall 5, the upper plate being provided with a spring biased punch rod 14 and the base being provided with a base plate 7 having a hole 6 for co-operation with the punch. The base 1 and plate 2 are made from plastics material and interconnected only by the walls 4, 5 which provide stops for the edge of the sheet. The base-plate 7 is formed with a waste box 9 closed by a hinged lid 8. The top surface of the plate 2 is provided with points 22 for correctly positioning the sheet. In modifications the upper plate 2 may be connected to the base by the rear wall 5 only and the punch may be arranged to move together with the upper plate during punching, the upper plate being formed from a resilient material.
Patent GB-711114-A (GB)
Title: Improvements in or relating to thermionic valves
Inventor: WRIGHT WALTER WILLIAM
IPC: H03D7/10
Filed: 1952-08-08
Abstract: 711,114. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. Aug. 8, 1952, No. 20026/52. Drawings to Specification. Class 39(1) [Also in Group XL(c)] A frequency-changer thermionic heptode valve comprises a cathode, an anode, and grids arranged between the cathode and anode in the following order: a signal grid adjacent the cathode,. a first screen grid, a local oscillator injection grid, and a second and a third screen grid, the grids being positioned and dimensioned so that with the three screen grids joined together the valve has hexode characteristics with high conversion conductance and high conversion impedance. Preferably the heptode is combined with a triode in the same envelope, the grid of the triode being connected internally to the local oscillator injection grid; the three screen grids may be connected together inside the valve. As compared with a known heptode, the pitch of the first grid and the pitch and minor axis of the third grid may be altered so that the grids may be used in the desired manner. The conversion impedance may be 1.55 megohms and the conversion conductance 865 ÁA/V.
Patent GB-1395811-A (GB)
Title: Machine for building in bricks a prefabricated building element
IPC: E04G21/22
Filed: 1972-05-01
Abstract: 1395811 Brick-laying machine BALLASTNEDAM GROEP NV 1 May 1972 [29 April 1971] 20186/72 Heading E1S A machine for making a prefabricated brick panel comprises brick-supplying means 63, mortar-supplying means 65 and a brick-laying mechanism 67 all carried by a frame 56 which is mounted for vertical movement in steps of one brick course height on a stand 52, and a carriage 59 on which the bricks are laid and which is guided for horizontal movement; in operation, the carriage 59 travels continuously during the laying of a course and the brick-laying mechanism 67 picks up bricks one at a time from the supply means 63 and lays each brick on the carriage while travelling in the same direction as but faster than the carriage. The brick-laying mechanism 67 comprises a pneumatic cylinder 77 whose piston rod carries a suction pad 81 for picking up bricks from a plate 63, on to which they have been delivered by a conveyor belt, and this mechanism 67 is moved in the direction of the carriage by further pneumatic cylinders 69. Other cylinders move the carriage, and raise the frame 56 after the completion of each course, the latter movement being regulated by a pawl 57 engaging a rack 54. Mortar is spread continuously as shown, and the carriage movement is reversed for each successive course. The operations are automatically controlled by the engagement of switches; circuit details are given.
Patent GB-1520836-A (GB)
Title: Devices for introducing vapours into gases
IPC: A61M16/10
Filed: 1976-05-17
Abstract: 1520836 Respiratory appliances DRAGERWERK AG 17 May 1976 [17 May 1975] 20191/76 Addition to 1492459 Heading A5T A device for introducing a vapour into a gas as set forth in main Specification 1492459 has a reservoir 5 through which liquid is circulated at a lower pressure than the pressure on the vapour side of the evaporations wall 6 so that in the event of a hole in the wall liquid will not pass into the gas. The device is disposed in a respirator to humidify the air for breathing.
Patent GB-175594-A (GB)
Title: Improvements in pulsation relay devices for milking machines
IPC: A01J5/04
Filed: 1921-07-27
Abstract: 175,594. De Laval Separator Co., (Assignees of Hall, S. H.). Feb. 18, 1921, [Convention date]. Fluid-pressure relays.-In apparatus for effecing a secondary pulsation by means of a piston valve operated by a primary pulsation, one end of the piston is subjected to the pressure of air in a chamber w, which is connected by a fine passage x leading through the piston to the opposite end of the cylinder. At this end the piston is subjectedto the main pulsation pressure through the pipe l. With this arrangement the pressure in the chamber w is very nearly uniform at a valve half-way between the main pulsation extremes, and the movements of the piston are such that the secondary pulsation pipe o is in communication with a vacuum pipe r through a chamber e and with the atmosphere through a chamber c for equal intervals. A chamber f communicates with the top of the piston cylinder g and with the chamber w through holes t, except when the piston is at the top of its stroke. Air then leaks down the piston from the chamber f to the vacuum connection, and there is a consequent reduction of pressure on the top of the piston which balances the weight of the piston.
Patent GB-569776-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J9/00
Filed: 1943-12-03
Abstract: 569,776. Sand-blast. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and WINGENT, T. W. Dec. 3, 1943, No. 20238. [Class 60] [Also in Group XXXVI] The metallic electrode terminals of thermionic valves are cleaned by projecting powdered or granular abrasive, for example, sand or aluminium oxide, by means of an air blast against the surface to bo cleaned, the parts not requiring treatment being covered by a mask &c. When large numbers of valves are to be treated, they may be carried on an endless belt, the valves being rotated so that all of the terminals are treated ; the glass surface between the terminals and the valve body may be exposed to the blast to produce indentations to lengthen the leakage path between metal parts. Blasting may be performed in a chamber, or by a hand gun in a screened space. The blasting process may be followed by polishing and/or the terminals may be given a coating of solder. Specification 549,301 is referred to.
Patent GB-299900-A (GB)
Title: Improvements in strengthened glass
IPC: C03C27/10
Filed: 1927-07-30
Abstract: 299,900. Head, P. H. July 30, 1927. Compound transparent sheets. - Di-acetone alcohol is used alone or in solution to cause adhesion between sheets of glass and celluloid or cellulose acetate. A diluent such as industrial spirit is preferably added and tetrachlorethane, acetone, or trichlorethylene, as well as methyl cyclohexanone or cyclohexanone. The glass is cleaned preferably with diacetone alcohol with or without industrial spirit, and a sugar solution, preferably with a small proportion of nitric acid added, may be applied to the surface to clean it and assist adhesion. The several sheets are preferably brought together immersed in the solution and then pressed hydraulically with rubberfaced platens. Three examples are given of solutions having specified proportions of ingredients and in one of which hexanone is not used. With cellulose acetate films hexanones are preferably used. To seal the edges, a solution of shellac containing four pounds to one gallon of spirit is used, or the edges may be cauterized by a hot wire or by caustic soda and the subsequent application of diacetone alcohol. A pigment may be applied to the edge of the celluloid sheet.
Patent GB-233578-A (GB)
Title: Improvements in crystal detectors used in connection with wireless apparatus
IPC: H01L29/00
Filed: 1924-08-27
Abstract: 233,578. Hall, N., (trading as North Eastern Instrument Co.). Aug. 27, 1924. Crystal detectors.-In detectors of the kind in which the rotation of a handle 14 causes one of the contact elements 29 to be moved into and out of engagement with the other, the movement into contact is effected by a spring 30 so that any further movement of the handle is without effect. The body of the detector is of ebonite &c. The crystal cup comprises a body 3 with saw gates 3e and bevelled edges to provide a spring-grip for a crystal-retaining ring 3<a>, and is held in position hy a spring 7. The contact element 29 is adjustably secured to a rod 22 connected to a cam member 21 and working in narrow guide slots 23, 24. Secured to the spindle controlling the rotatable cam member 18 is a metal disc with a single tooth 17 which engages a toothed wheel 4 secured to the crystal cup. The wheel 4 may be lettered, a hole in the spring 7 registering with the letters to indicate the position of the cup. The crystal may be covered with fine insulating gauze to maintain the adjustment. The terminals 34 may be replaced by split plugs connected to the members 31, 10 or by hooked straps.
Patent GB-972563-A (GB)
Title: Aluminium derivatives as stabilisers for polyurethane foam manufacture
Inventor: NAM BILLIE
IPC: C07F5/06
Filed: 1962-05-28
Abstract: A process for the preparation of polyurethane foams by reaction of conventional hydroxy containing polymers and polyisocyanates, in the presence of a foaming agent, is characterised by the presence in the reaction mixture of the product of a reaction between an aluminium alkoxide, a carboxylic acid, a polyoxyalkylene alcohol, and, optionally, at least one other hydroxy compound. Preferred aluminium alkoxides are those derived from secondary alcohols, such as sec. butanol; suitable carboxylic acids may be aliphatic, aromatic, or substituted aromatic acids. Poly-alkylene alcohols include hydroxy ended polymers and copolymers of cyclic oxides such as ethylene-and propylene-oxide, with compounds having a single hydrogen atom reactive to cyclic oxides, e.g. butanol, isooctanol, or having two or more such hydrogen atoms.  Preferred polyoxyalkylene alcohols are those with a single hydroxyl end group.  As optional second hydroxy compounds may be used: phenols, aromatic or aliphatic substituted or unsubstituted alcohols; primary, secondary or tertiary straight or branched chain, or cyclic alcohols, polyfunctional hydroxyl compounds, and hydroxy compounds derived from naturally occurring oils and fats. The preferred compounds are higher aliphatic alcohols. The proportions of the above reactants used per 1 mole of appropriate aluminium alkoxide may vary from 0.5-2.0 moles carboxylic acid, and 0.1-2.0 moles of total hydroxy compounds, the proportions being such that the total acid plus -OH compound is from 1-3 moles/1 mole aluminium alkoxide; preferred quantities are: acid, 0.6-1.2 moles; -OH compounds, 0.7-1.4 moles; total 1.5-2.5 moles, per 1 mole of aluminium alkoxide.  The aluminium alkoxides may be prepared by known methods, such as primary heating of all the reactants together to a suitable temperature, to drive off lower boiling point alcohols, followed by stronger heating to effect further condensation. Polyurethane foam preparation is by conventional procedure, using such components as are already employed in the art, as suitable polyethers, polyesters or their amides, with organic polyisocyanates, and water and/or fluorinated alkanes as blowing agents, in the presence of 0.01%-5%, preferably 0.25%-2% of the aluminium derivatives, based upon the weight of the hydroxy components of the polyurethane reaction mixture.  The aluminium derivatives act as foam stabilizers, where they prevent collapse and consequent loss of gas of the prepolymerized foam.  They are particularly employed in polyurethane preparation when the hydroxyl group containing polymer contains predominantly secondary hydroxyl end groups; in these cases, the aluminium derivatives allay the marked tendency of the foam to collapse, and even in one stage procedures, give products of fine pore structure, with low density, yet desirable mechanical properties.  Four examples for the preparation of aluminium derivatives of this type are given, and four examples of their use in polyurethane foam production.