baber/WOPTO huggingface dataset:
Patent GB-494475-A (GB)
Title: Improvements in or relating to identification devices
IPC: G09F3/14
Filed: 1938-01-27
Abstract: 494,475. Padlocks. RANSON, T. W. Jan. 27, 1938, No. 2645. [Class 44] [Also in Group XV] An identification device, particularly for use in hospitals to identify a mother and her child, comprises a pair of lock casings each having a flexible band secured at one end to the casing and each having means, operated by a key permanently attached to the other casing, for locking the other end of the band to the casing. Each casing 12 houses a revolving barrel-lock 21 and a key 29 which can be pivoted about a pin 30 and used to operate the lock in the other casing. A flexible band 11 comprising a chain formed of balls and connecting links has one end secured to the casing at 14, the other end being adapted to be passed through a bore 18 in the casing and looked by turning the barrel 21. For this purpose, the bore 18 and the bore housing the barrel 21 intersect and the barrel has a longitudinal groove, which allows the chain to be inserted in the bore 18, and a number of circumferential grooves, intersecting the longitudinal groove, which engage and retain the chain when the barrel is turned. The bands 11 may be made of any material which is flexible and durable. In use, the units are used as bracelets or necklets, one being attached to the mother and the other to the child, each being locked by the key carried by the other, so that neither can be removed in the absence of the other.
Patent GB-1162725-A (GB)
Title: Means for Controlling the Current of Electric Traction Motors of A.C. Thermal-Electric Drives
Inventor: STEPANOV ALEXANDR STEPANOVICH
IPC: B60L50/13
Filed: 1967-01-18
Abstract: 1,162,725. Control of A.C. motors; alternator exciting arrangements. MOSKOVSKY ORDENA LENINA ENERGETICHESKY INSTITUT. 18 Jan., 1967, No. 2675/67. Headings H2A and H2J. A synchronous generator 5 supplying A.C. traction motors 6 is driven by gas turbine 4 forming part of a set which comprises compressor 2 which is driven at a selected speed by turbine 3. A field winding 7 of the generator is supplied through rectifier 8 from magnetic amplifier 9, having control windings 14, 15, opposed by control winding 16. The winding 14 is energized in accordance with either the field current or the stator current of the generator, the winding 15 being supplied from tachometer generator 20 driven by the turbine 4. The winding 16 may be supplied through a tuned circuit, from an A.C. tachometer generator driven by the turbine 3 or from a D.C. tachometer generator through a diode and a potentiometer which is connected to a source of constant voltage. Alternatively, the control winding 16 is energized in accordance with the output of a transducer for converting mechanical movement of a fuel supply mechanism into an electrical signal. In another arrangement, the winding 7 is supplied from an exciter whose field winding is connected to the output of rectifier 8. The latter may comprise a diode bridge or thyristors. Over a certain range of frequencies, the traction current is kept at a steady value by a supplementary winding 26 on the magnetic amplifier 9 which is energized when the voltage from tachometer generator 20 exceeds a bias voltage developed across potentiometer 27. The control winding 15 may be connected in series with a choke coil or capacitor. The magnetic amplifier 9 can be provided with stabilizing windings receiving signals from the field winding 7 through a capacitor or transformer.
Patent GB-1022107-A (GB)
Title: Reinforced plastic panel and method of making the same
IPC: B29C70/08
Filed: 1965-01-21
Abstract: 1,022,107. Laminates. CINCINNATI MILLING MACHINE CO. Jan. 21, 1965 [Feb. 13, 1964], No. 2795/65. Heading B5N. A method of making a copper clad plastic panel comprises the steps of placing a copper foil on a substantially horizontal moulding surface, forming on the upper surface of said copper foil an assembly of at least two layers of glass cloth with a layer of matted glass fibres between each two layers of glass cloth and a quantity of viscous liquid thermosetting resin impregnating and encapsulating said layers of glass cloth and matted glass, and moulding the resultant assembly at an elevated temperature and pressure to produce a glass-reinforced copper-clad panel. A mould release agent may be interposed between the moulding surface and the copper foil. Specified thermosetting resins are phenol-formaldehyde, urea-formaldehyde, epoxy and modified methacrylate resins.
Patent GB-1526881-A (GB)
Title: Stabilized acrylate resins
IPC: C08G59/17
Filed: 1976-01-26
Abstract: 1526881 Stabilized epoxy-acrylate resins SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 26 Jan 1976 [28 Jan 1975] 02840/76 Heading C3B Liquid epoxy-derived acrylate resins stabilized to prevent their viscosities increasing during storage are made by a process which comprises reacting a polyepoxide, e.g. the diglycidyl ether of bis-phenol A with acrylic or methacrylic acid in the presence of a nucleophilic catalyst, e.g. tetramethyl ammonium. chloride and adding a stabilizer acid having a pKa below 2À5 and an anion having a nucleophilicity of less than 2À5 in a molar amount such that the ratio of stabilizer acid to catalyst lies within the range 1 : 1 to 3 : 1. Nucleophilicity n is the measure of the tendency of an anion to enter into a polar substitution reaction and is expressed by the formula wherein k equals the rate constant of a given nucleophilic agent and k H2O  equals the rate constant of water acting as a nucleophilic agent and S equals the sensitivity of the substrate to changes in nucleophilicity. Suitable acids are para-toluene sulphonic acid, p-phenol sulphonic acid, phosphoric acid and sulphuric acid. The acid may be added either to the mixture of the polyepoxide, acrylic or methacrylic acid and catalyst at the beginning of the reaction or to the resin at the end of the reaction. Epoxyderived acrylate resins stabilized in this manner may be used in paints and inks as they are still readily curable using free radical initiators.
Patent GB-759276-A (GB)
Title: Improvements in extrusion dies
Inventor: GORDEN SEVERIN
IPC: B29C48/305
Filed: 1953-10-20
Abstract: 759,276. Nozzles for extruding sheet materials. WINDSOR, Ltd., R. H. Oct. 20, 1953, No. 28941/53. Class 2 (2). [Also in Group V] A die for attachment to a press for the continuous production of extruded sheet material from thermoplastic substances comprises a block having an inlet in one side wall, a die orifice in the opposite side wall and at least two conduits from the inlet to the die orifice meeting at or adjacent to the die orifice. The die block is formed by two plates 4, 5 tightly bolted together, a hole being tapped in one side of the block to screw on to the nozzle 10 of an extrusion press. A semi-circular groove is cut in the upper surface of the lower plate 5 so that, when it is clamped to the plate 4, a passage 13 is formed between the surfaces of the two plates with its path such as to divide in two the stream of thermoplastic material and to lead each part round a semi-circular path. The top surface of the plate 5 also has a depression 18 along its front margin which when the plates are clamped together, faces the bottom surface of a bar 19 mounted in a recess in the plate 4 and so forms a die orifice 14 in the form of a slot. Between the surface 18 and the groove 13 the top surface of the plate 5 is machined to form, when the plates are clamped together, a shallow chamber 17 which on one side communicates with the orifice 14 and on the other with the feed conduit 13 over a distance corresponding to the extent of the die orifice. Bores 23 are provided in the plates for heating elements. The area of the die orifice can be varied by exchanging the bar 19, which is bolted in place, for another of different size.
Patent GB-100118-A (GB)
Title: Method for Removing the Enamel and like Coatings from Waste Enamel and the like Wear.
Inventor: KARDOS EMANUEL
IPC: C23D17/00
Filed: 1915-03-02
Abstract: 100,118. Kardos, E. March 2, 1915. Cleaning.-Enamel is removed and separated from metal sheets, hollow-ware, &c. by treating in an impact pulverizer such as is described in Specification 3339/15, [Class 59, Grinding, Crushing, &c.], wherein the enamel is broken up and passes away through the grid, the metallic sheets &c. being beaten into a shapeless mass and separately discharged.
Patent GB-1532013-A (GB)
Title: Addressing apparatus for telephone exchanges
IPC: H04Q11/04
Filed: 1976-01-27
Abstract: 1532013 Memory readout CSELT-CENTRO STUDI E LABORATORI TELECOMUNICAZIONI SpA 27 Jan 1976 [28 Jan 1975] 02996/76 Heading G4A [Also in Division H4] Read-out address signals supplied, via respective multiplexers MP7, MP8, to two groups of memories N are time displaced relative to each other so that as one group of memories is scanned by a multiplexer MP9 the other group of memories is supplied with the appropriate read-out address signals so as to be ready for subsequent scanning by MP9. More than two groups of memories may be provided. As described, the signals from multiplexer MP9 control a switching network (RC, Fig. 1, not shown) in a telephone exchange handling PCM channels, each PCM channel being associated with one column of one of the memories N. During writing the address of the outgoing channel of a desired connection is received at i and part selects, via multiplexers MP7, MP8, one column in each memory N, one of the memories N being selected by a decoder DEC connected to i. At the addressed location is written the address of the incoming channel, received at c. During reading decoder DEC provides all zero outputs, multiplexer MP9 is stepped by signal R23 and multiplexers MP7 and MP8 receive the read-out address signals R21, R22; during each scan of multiplexer MP9 one column of each memory N is read. The address of the outgoing and incoming channels for each connection are provided sequentially by a processor (EL, Fig. 1, not shown) and supplied to a circuit (Fig. 2, not shown) which converts each such address from parallel to serial form and writes the two addresses serially into a row of a memory (TM) from which they are read out in parallel, the address for other connections being written in other rows of this memory (TM), the stored pairs of addresses being read out to the apparatus of Fig. 3 in sequence.
Patent GB-660577-A (GB)
Title: Improvements in or relating to hydraulic presses
IPC: B27D3/02
Filed: 1948-02-03
Abstract: 660,577. Hydraulic presses. BERTHELSEN, V. Feb. 3, 1948. [Feb. 5, 1946] No. 3078/48. Class 69 (ii). [Also in Group VIII] A hydraulic press, especially a veneering press, comprises at least two unitary frames, each having piston and cylinder means 4 mounted on the bottom thereof, a fixed platen 2 which is positioned through the frame openings and connected to the lower surface of the top parts of the frames to hold the frames together, and a movable platen 3 which is operated by the pistons. The bottom parts of the frames are interconnected by stiffening-elements 8. The platens are heated, and to avoid tension in the lower part of the press, the elements 8 are heated, preferably by steam from a conduit 9 connected to the platen 3. The element 8 may consist of bolts which are heated by electricity or gas. Specification 660,578 is referred to.
Patent GB-965652-A (GB)
Title: Injection means for pressure casting machines
IPC: B22D17/20
Filed: 1963-01-24
Abstract: 965,652. Casting machines. VOLKSWAGENWERK A.G. Jan. 24, 1963 [Feb. 7, 1962], No. 3132/63. Heading B3F. [Also in Division F2.] A piston 2 moving in a chamber 5 of an injection-moulding machine 13 has a packing ring 11 mounted between a frusto-conical seat 10 and a displaceable head piece 4 so that during injection the packing is pressed by the head piece against the seat 10 to expand it against the chamber wall, the head piece being guided piston-like in a bore in the piston. The head piece 4 consists of an annular disc secured to a guide bolt 6, the axial movement of which away from the piston, is limited by a nut 7. The head piece and the bolt carry piston rings 14, 15. The piston is screwed to a piston rod 1. The injection chamber 5 is provided with an inlet orifice 12 for liquid casting material. The packing is made of asbestos. Lubrication of the chamber wall is provided by oil fed through a bore 16 in the piston rod.
Patent GB-1089631-A (GB)
Title: A model aeroplane
IPC: A63H27/00
Filed: 1965-01-25
Abstract: 1, 089, 631. Toy aeroplanes. C. R. W. SHAW. Jan. 24, 1966 [Jan. 25, 1965], No. 3251/65. Heading B7W. A toy aeroplane is made from a single blank of cardboard folded to form a fuselage and wings and having tabs and slots to hold them in position without glue or other fixing means. The fuselage is a double-walled triangular prism, the wing is double-walled and delta shaped and the two are held together by a fin integral with the wing extending through a slot in the fuselage.
Patent GB-225741-A (GB)
Title: Improvements in and relating to lanterns
IPC: F21L19/00
Filed: 1924-02-08
Abstract: 225,741. Jamar, D. Feb. 8, 1924. Hand lamps.-In an oil lantern comprising a base 1 forming a reservoir on which is pivoted a metallic frame 2 protecting the glass globe 3 and which supports the top 4 of the lantern, the upper part of the globe is closely surrounded by a cylindrical wall 9 and arms 11 on a central stem 12 are pressed against the upper edge of the globe by a spring 13. Air admitted through apertures 18 in the gallery is directed towards the side of the globe by upwardly and outwardly inclined baffles 19. Mounted on the frame 2 is a guard comprising uprights 22 carrying horizontal wire rings 21, one of which has a flat portion a adapted to rest on the ground when the lantern is opened, and the guard carries a reflector 24 having an aperture covered by a coloured glass pane 25.
Patent GB-449268-A (GB)
Title: Improvements in and relating to mine blasting
IPC: F42D1/18
Filed: 1935-02-01
Abstract: 449,268. Blasting; tampings. VOORTMANN, W., 3, Dudenstrasse, Dortmund, Germany. Feb. 1, 1935, No. 3381. Convention date, Feb. 16, 1934. [Classes 9 (i) and 68 (i)] A tamping-plug 3, Fig. 2, with a side groove 6 for the fuse leads 2 and a central cord 4 for holding the plug is inserted in a bore-hole, which is of uniform diameter, at a certain distance from the explosive charge to leave an air space and is held in that position by the cord 4 while the first part of the tamping is rammed in, after which the tamping is completed in the usual way. The plug 3 is made of an incombustible material, or of salt, and has a diameter slightly less than that of the borehole. The cord 4 is threaded through the plug and its end 4<1> is knotted, a recess 5 being formed in the plug to receive the knot. The explosive charge may comprise several cartridges one against the other at the bottom of the bore-hole. Cords of various lengths indicated by various colours may be provided to facilitate determining the position of the plug. The blasting operation is begun by forming a recess N, Fig. 5, by exploding charges in inclined bore-holes 10, 11, 12 ; then normal bore-holes 13, 14, and so on are fired to break up the walls between these bore-holes and the recess N into big pieces. Specifications 23732/10, [Class 9(i)], and 358,369 are referred to.
Patent GB-661210-A (GB)
Title: Improvements in control means for aircraft
IPC: B64C13/02
Filed: 1949-02-08
Abstract: 661,210. Aircraft controls. SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU SUD-EST. Feb. 8, 1949 [Feb. 18, 1948], No. 3458/49 Class 4. A pilot's rudder control comprises pivotally connected thigh and leg supports, the thigh support pivoting on the sides of the seat, while the lower end of the leg supports are connected to foot rests slidable along substantially horizontal guides. In the form shown in Fig. 2 the thigh and leg supports 20, 21 and 29, 30, respectively, carry upholstered cushions 18, 19. The members 20, 21 are pivotally connected at 22, 23 to the sides of the seat, and are provided with downward extensions connected to the rudder-operating members 25, 26, the latter being actuated by pivotal movements of the supports 20, 21 as the result of movement of the foot rests 33, 34 along guides 35. In the arrangement according to Fig. 4 the thigh and leg supports are adjustable in length, being composed of telescopic members 57, 58 and 59, 60 respectively, while the shaft 54 about which the thigh supports pivot may be inserted in any of a number of openings arranged at different heights in side plates 55. In this construction the rudder-operating members 25, 26 are connected to the foot rests 61. Either form of rudder control may be combined with aileron and elevator control mechanism embodying arm rests as described in Specification 622,168. Fig. 5 shows a further form of leg support carrying a wheel brake cylinder 80 operated by movement of the foot rest 68 about a pivot 69.
Patent GB-620974-A (GB)
Title: Improvements relating to magnetic compasses
IPC: G01C17/00
Filed: 1947-02-05
Abstract: 620,974. Magnetic compasses. FILOTECNICA SALMOIRAGHI SOC. ANON. Feb. 5, 1947, No. 3481. Convention date, Oct. 18, 1945. [Class 97 (ii)] A space is provided within the compass bowl which is in communication with the liquid in the bowl at or near its lower end but is otherwise sealed, but which can be placed in communication with the atmosphere through a plurality of closable holes arranged at progressively increasing heights above the bottom of the bowl. The bowl 1, Fig. 1, having the usual cover glasses 2, 3 and filler plug 9 is provided with an annular strip 17 forming an annular space around the inner periphery of the bowl closed by a glass plate 18, but in communication with the liquid in the bowl around the needle pivot. A number of closable holes 16, Fig. 2, are provided and an uppermost hole has an outlet pipe 12 terminating in a capillary 14 closable by a plug 15. In filling, the hole appropriate to the filling temperature is opened and the capillary 14 closed and the liquid is poured into the bowl until it flows through the opened hole 16. This hole is then plugged and filling continued until the inner bowl is full, when plug 9 is closed and plug 15 opened. The holes 16 are spaced above the lower edge of the strip 17 and below the upper hole in such a manner that the maximum variation in the volume of the whole of the liquid for the maximum difference of temperature between the temperature when the casing is filled and the maximum and minimum values of the temperatures to which the compass is to be exposed in use does not exceed the volume of the annular passage between the appropriate hole 16 and respectively the upper hole communicating with the outlet pipe 12 or the lower edge of the annular strip 17.
Patent GB-211473-A (GB)
IPC: F23D14/04
Filed: 1924-02-12
Abstract: 211,473. Bakhuizen, W. Feb. 13, 1923, [Convention date]. Gas burners.-A non-atmospheric gas burner is provided with outlet openings or nozzles arranged in pairs or in groups, the axes of the nozzles of each pair or group being inclined to one another at an extremely acute angle, for example 10‹, so that the flames unite or touch each other in such a manner that they are lengthened. In one form, a burner head c is provided with two rows of nozzles a, b, and with circular grooves f above, between and below the rows. The grooves f may be arranged vertically between pairs of nozzles or obliquely. In a second form, the two rows of nozzles are arranged in concentric circles in the cover d of the burner head c. The Specification, in the original form, as open to inspection under Sect. 91 (3) (a) states also that one nozzle of each pair, or group, of nozzles may be supplied with air and describes a ring burner r provided with inner and outer rows of nozzles supplied through independent channels s, t. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 1032/78, 24287/03, and 149,909.
Patent GB-673652-A (GB)
Title: New polymers
IPC: C08G61/12
Filed: 1949-02-10
Abstract: Polymers are produced by a process in which the vapour of an aromatic heterocyclic compound consisting of one or two six-membered rings containing only carbon and nitrogen within the ring or rings and having two methyl groups in the para positions of one ring and formed of condensed rings when consisting of two rings is pyrolysed by being subjected to a temperature between 700 DEG  and 1000 DEG  C. for not more than 10 seconds and the resulting vapours are cooled so that a solid polymer is deposited. Specified compounds are 2,5-dimethyl pyrazine, 2,5-lutidine and 5,8-dimethyl quinoline.  The preferred duration of pyrolysis is from 0.1 to 1 second.  The vapour pressure is preferably below atmospheric, 5 to 10 mm. of Hg being specified, and the vapour may be diluted with an inert carrier, e.g. nitrogen or carbon dioxide, to maintain a low partial vapour pressure of the compound. Cooling may be effected by contacting a cool surface on which the polymer is deposited as a film.  Some lower molecular weight resin may be also deposited.  The monomeric unit appears to be the original compound with two CH2 groups instead of the two methyl groups.  The polymers are insoluble in organic solvents but are soluble in mineral acids from which they may be spun into an alkaline bath to give filaments.  Specification 650,947 is referred to.
Patent GB-1457342-A (GB)
Title: Cultivation medium for mushrooms transparent photocell
IPC: A01G1/04
Filed: 1974-01-25
Abstract: 1457342 Growth medium for mushrooms AARHUS OLIEFABRIK AS 15 Jan 1975 [25 Jan 1974] 03688/74 Heading C1B A growth medium for mushrooms comprises fermented manure and shea meal. The meal may be added, preferably in an amount of 5-10% by weight based on the manure, at any stage during the fermentation of the manure. After fermentation, the medium may be sterilised, e.g. by raising the temperature to 50-60C.
Patent GB-1401801-A (GB)
Title: Construction kits
IPC: A63H33/06
Filed: 1972-01-27
Abstract: 1401801 Shelving T P C DARBY 26 April 1973 [27 Jan 1972] 3792/72 Heading A4B [Also in Divisions A6 and B8] A construction kit consisting of a number of flat plates which can be releasably connected to each other in various arrangements and used as a toy, or for the construction of shelving, display stands and containers, has at least some of the plates provided with lugs 10 and at least some of the plates provided with slots 11, so that the lugs can be passed through the slots to connect plates to each other at right angles, at least some of the lugs having an aperture for a wooden locking pin or wedge 13, Fig.10, inserted after the lug has been passed through a slot 11. The various plates are of modular construction, viz. are dimensioned to relate to a common basic square. Additional holes 12, Figs. 3, 7, 9, may be provided. The plate of Fig.9 has slots 11 but no lugs 10, and is used to form the top or bottom of a set of plates when assembled. Each plate may be in two parts, Fig.7, divided along a line parallel to one edge, or divided along a diagonal, Fig.8 (not shown). Each lug 10 may be of such a length as to receive one plate 14, as shown in Fig.10, or may be of greater length to receive two plates (14, 16), Fig.11 (not shown), before a wedge 13 is inserted through its aperture. The plates may be of five-ply plywood, 19-20 inches long along their sides, or of plastics and 2 inches long along their sides, or may be printed and/or stamped on the sides of packets, e.g. for cereals. Additionally curved sheets, rods, bars, tubes, &c. may be included with the kit.