baber/WOPTO huggingface dataset:
Patent GB-463168-A (GB)
Title: Improvement in flash light lamps
IPC: F21K5/08
Filed: 1936-08-19
Abstract: 463,168. Flash - light lamps. DOERING, U. W. Aug. 19, 1936, No. 22843. [Class 9 (ii)] A flash-light lamp contains a flashing material 2 and an active gas, such as oxygen, at atmospheric pressure, a portion of the wall of the container being in the form of a folded transparent membrane 5 which allows increase of volume of the container upon ignition of the flash-light material. A thin metal cap 6, which is removed when the flash lamp is to be used, is provided to protect the membrane from damage, and is secured by an adhesive sealing strip 11. The metal cap may be replaced by a thin, ductible metal sheet, e.g. of tinfoil, which is placed over the membrane and sealed along the periphery of the container.
Patent GB-958166-A (GB)
Title: Mixer truck
IPC: B22D41/12
Filed: 1962-06-14
Abstract: 958,166. Metal mixers. DEMAG A.G. June 14, 1962 [Sept. 6, 1961], No. 22974/62. Heading F4B. A mixer truck comprises an elongated container 1 of substantially elliptical vertical crosssection, Fig. 2 (not shown), with a brick lining 2, a central aperture 3, trunnions 5 pivoted in a longitudinal direction at bearings 6 and outer supports 7 which are mounted on a platform 8 and a chassis 10 connected to the platform by a ball cup 9. Burners 13 and 14 are provided to keep the metal molten and plates 15, Fig. 2, to reduce radiation are spaced 50 mm. from the container so that air can enter at the lower end 17 and escape through a divergent opening at the upper end of the air passage.
Patent GB-1033625-A (GB)
Title: Improvements in or relating to attenuating networks
Inventor: MIDDLETON JOHN DAVID
IPC: H03H7/24
Filed: 1964-06-03
Abstract: 1,033,625. Attenuating networks. MARCONI INSTRUMENTS Ltd. Jan. 4, 1965 [June 3, 1964], No. 22985/64. Heading H3U. An attentuating network comprises at least two sections in cascade, each including a series resistance, a condenser in parallel with said resistance and two shunt condensers, one on each side of said resistance and one of which may be common with a shunt condenser of the next section; and a shunt resistance across the output end of the last of the sections, the elements in the network being dimensioned so as substantially to satisfy the following equations, namely:- where C1 is the value of each shunt condenser other than the one nearest the input end and the one nearest the output end of the network; C2 is the value of each condenser in parallel with a series resistance; Ct is the value of the shunt condenser nearest the output end of the network; Rr is the value of the rth series resistance counting from the input end of the network; N is the required total attenuation (in times) of the network and is equal to n<SP>r</SP>, where n is the attentuation of each section (including any effective loading); Rt is the value of the shunt resistance across the output end of the whole network; and R T  is the total input resistance of the network. The network is particularly suitable for use with oscilloscopes and provides a high impedance and high attenuation ratio, the network being effective over a very wide frequency range and being substantially unaffected by the frequency. In a two-section embodiment of the invention, Fig. 2, having input terminals 1 and output terminals 2, R1 and R2 are two series resistances, C2 are the parallel-connected condensers and may be adjustable, C1 is the shunt condenser common to both sections, Co is the shunt condenser at the input end, Ct the shunt condenser at the output end and Rt the shunt resistance at the output end. S is an earthed electrostatic screen between the resistances R1 and R2. Since there are two sections, r = 2 and n = #N. A multiple section network is described with reference to Fig. 3 (not shown).
Patent GB-582401-A (GB)
Title: Improvements in tapping circuits for communication lines
IPC: H04M1/65
Filed: 1939-08-09
Abstract: 582,401. Two - way transmission. BEVOORT, C. Aug. 9, 1939, No. 22998. Convention date, Aug. 10, 1938. [Class 40 (iv)] A tapping circuit for monitoring or recording conversations or enabling such conversations to be transmitted by wireless comprises a coupling between the line parts, a direct coupling between one line part and the recording &c. device and a coupling between the other line part and the device including an adjustable attenuator to equalize the level in the two directions of transmission. As shown, the various couplings are provided by a hydrid coil T and adjustable balancing impedance R, the level from one line part being dependent on the amount of mis-match. A switch S may interchange the connections between the line parts A, B and the hybrid coil and the adjusting member of the impedance R may be arranged to throw over the switch S at a certain point in the adjustment. Specification 388,195 is referred to.
Patent GB-1073199-A (GB)
Title: Improvements in apparatus for swaging fittings on wires for prestressed concrete structures
Inventor: HARVEY JOHN TERENCE CRAWFORD
IPC: E04C5/12
Filed: 1966-05-24
Abstract: 1,073,199. Jointing by forging. P.S.C EQUIPMENT Ltd. May 24, 1966, No. 23017/66. Heading B3H. Apparatus for swaging a fitting on to a wire for use in prestressed concrete structures, comprises a casing 1 containing a swaging chamber 5 defined by segmental swaging jaws 6 with tapered external surfaces co-operating with a corresponding internal surface 9 on a hollow piston 7 which is actuated to close the jaws. The piston 7 may be double acting and supplied with pressure oil alternately through ports 20, 23. Jaws 6 which may comprise four segments are biased to open position by a spring- loaded plunger 14 having its stroke limited by a screw 17. Alternatively the piston may be single acting and returned by a spring. The swaging jaws 6 may be interchangeable and consist of more or less than four segments. The swaged fitting comprises a hollow steel bush 26, Fig. 3 (not shown), enclosed within a two-part sleeve 28, Fig. 5 (not shown), with sharp inner teeth which bite into the wire.
Patent GB-317782-A (GB)
Title: Improvements relating to metal disc rectifiers for alternating electric currents
IPC: H01L25/07
Filed: 1929-07-26
Abstract: 317,782. Associated Electrical Industries, Ltd., (Assignees of Hengstenberg, P. M.). Aug. 22, 1928, [Convention date]. Contacting-solid resistances.-A static-contact rectifier comprises a number of superposed perforated metal discs, alternate discs being countersunk near the perforation. A number of copper discs 4 are provided with an oxidized surface or coating 5 covering one surface of the marginal edges. The unoxidized surfaces of the discs 4 are provided with a depression 6 formed by counterboring the disc adjacent to the central perforation 7. Between each two copper discs is located a lead or nickel disc 8 having a perforation 9 and embossed adjacent to the perforation so as to provide a boss 11, fitting the depression 6 of the adjacent copper disc, and a depression 12 which allows an insulating space between the lead disc 8 and the adjacent oxidized surface of the next copper disc. By this construction the oxidized edges of the perforations in the copper discs are spaced from the edges of the perforations in the lead discs. The copper discs are larger in diameter than the lead discs so that their outer edges are spaced apart.
Patent GB-1439790-A (GB)
Title: Bistable relay with selaed contact units
IPC: H01H51/28
Filed: 1974-05-23
Abstract: 1439790 Electromagnetic relays INTERNATIONAL STANDARD ELECTRIC CORP 23 May 1974 [7 June 1973] 23065/74 Addition to 1439788 Heading H1N A bi-stable electromagnetic relay with two sealed contact units 1, 2 is substantially as described and claimed with respect to Figs. 12, 13 of the parent Specification 1,439,788 except that the permanent magnet is replaced by a flux guide 11 and the magnetically soft metal stampings respectively attached to the inner portions of the base plate of each contact unit and surrounded by the common magnetizing winding are replaced by stampings of a remanent magnetic material.
Patent GB-850808-A (GB)
Title: Improvements in or relating to temperature controlling apparatus
Inventor: WEEKS DAVID JOHN
IPC: B29C48/03
Filed: 1957-07-22
Abstract: <PICT:0850808/III/1> An apparatus to control the temperature of equipment, e.g., an autoclave, a column reactor or vessel, a vat or the extrusion machine of Specification 815,485, comprises at least one heat exchange zone 2 which may surround or pass through said equipment containing vapour and its condensate, means 3, 4 to supply vapour automatically to said zone 2 and to maintain a constant pressure therein, means 6 operated by the pressure within said zone 2 or the temperature within said equipment to interrupt the supply of vapour, means 8 to condense the vapour supplied to said zone, means to return the condensate to the zone and means 7 to remove excess of condensate from the zone.  Steam is supplied through a reducing valve 4 to a jacket 2 of, e.g., an autoclave 11 having a condenser 8 and an overflow pipe 6 with steam trap 7.  In operation, steam at a constant pressure enters the jacket, bubbles through the condensate, is condensed by the condenser and the rise in level of the condensate causes overflow through the pipe 6 and trap 7 to maintain a flow of steam at a constant pressure and hence temperature.  If heat is absorbed by the autoclave the condensate takes heat from the steam, causing the pressure to be reduced and thus more steam to be admitted to maintain constant the pressure and temperature.  If the autoclave gives out heat the condensate vaporises, causing the pressure to rise and the reducing valve to supply less steam and thus maintain constant the temperature and pressure.  The reducing valve may be replaced by a source of steam at constant pressure or a temperature-sensitive valve, controlling the input of steam, may be placed in the jacket.  The excess condensate may be removed by an ejector, operated by the condenser, in place of the overflow and trap.
Patent GB-301813-A (GB)
Title: Improvements in boxes, crates or cases
IPC: B65D6/00
Filed: 1927-09-02
Abstract: 301,813. Lusty, W. K. Sept. 2, 1927. No Patent granted (Sealing fee not paid). Corner joints; joints between box bottoms and bodies; lids; battens, strengthening; ventilating boxes.-In a box, crate, &c. of the kind having the bottom and some or all of the sides and ends made of a number of longitudinal and transverse interwoven or interlaced strips of thin wood or veneer secured to the inner faces of battens, the bottom comprises two longitudinal battens q, the ends or sides each comprise two longitudinal battens a, b and two vertical battens c and the sides or ends each comprise two longitudinal battens i, k. The interwoven wood or veneer strips are stapled to the battens and the various members of the box are secured together by staples and nails. The formation of the bottom allows air to circulate underneath it and between the boxes when they are stacked one upon the other. A pair of the sides or ends may be made of solid boards, the bottom may be reinforced by transverse battens of less depth than the battens q, and the sides or ends may be reinforced by vertical battens which are thinner than the battens i, k so as not to interfere with the cir. culation of air between the boxes when stacked side by side. Corner pieces s may be nailed to the upper and lower battens and a lid, formed of interwoven strips or veneer secured to longitudinal battens or of longitudinal and transverse battens secured together, may be nailed to the upper battens of the box or a central batten of the lid may project at the ends thereof to engage wire loops on the ends of the box.
Patent GB-201788-A (GB)
Title: Automatic circuit breaking device
IPC: H01H71/20
Filed: 1922-08-25
Abstract: 201,788. Johnson, E. Aug. 25, 1922. Automatic circuit-breakers for three-phase currents are constructed with fuzes in two of the circuits so that the blowing of one or both of them causes the automatic opening of a switch in the third circuit. The pivoted switch arm 7 is normally pressed by a weak spring 8 into contact with the fixed contact 9; and the circuits for the other two phases are normally closed by means of members 1 and 3. Should one of the fuze rods 5 melt, the member 3 corresponding to it is pulled back by a strong spring 6, and, bearing against a bar 10 fixed to the switch arm 7, overcomes the weak spring 8 and causes the arm 7 to break contact. For small currents, the current may be led along a resistance wire wound round the rod 1, thereby heating the rod 1 and melting the fuze rod.
Patent GB-170694-A (GB)
Title: Improvements in and relating to spring frames for motor cycles
IPC: B62K25/28
Filed: 1920-08-07
Abstract: 170,694. Simpson, W. F. J. Aug. 7, 1920. Spring devices.-In a spring frame for motor-cycles, the chain stays 4 are pivoted on a bracket at the lower end of the seat pillar 6 and also to the back stays 1, the upper ends of which are pivoted to a pair of curved levers 8, which are pivoted at 9 to the seat pillar and at 11 to two sets of leaf springs 12 pivoted at 13, 14 to the stays 1, 4. The springs 12, instead of being heart-shaped as shown, may be kidney-shaped or C-shaped. The back axle slots 2 may be formed in the back stays 1 or in continuations of the chain stays.
Patent GB-279042-A (GB)
IPC: G03B1/56
Filed: 1927-09-05
Abstract: 279,042. Debrie, A. L. V. C. Oct. 18, 1926, [Convention date]. Kinematograph apparatus. - Registering pins 20 and an apertured pressure frame 16 are reciprocated relatively to the exposure aperture of a camera by means of a cam groove 4 carried on a rotating shaft 1. As shown, the frame 16 is carried by pivots 15 between the arms of a forked lever 12 which is pivoted at 13 and is engaged at its upper end 11 by a socket 10 on a slide 7. The slide 7 carries a roller 5 engaging the groove 4, and is caused to reciprocate to and from the film. The pins 20 are pivoted to the lower ends of the lever 12 and move in guides. The frame 16 is resiliently connected to a rear frame 16<1> by springs 17. In a modification, the slide 7 is dispensed with, and the upper end 11 of the lever 12 is bent over to carry the roller 5, the roller being spherical. In both constructions, to facilitate focusing on a ground glass screen, means for enabling the frame 16 to be moved out of position may be provided, and the shaft 1 may be provided with a frame-like portion to permit an unobstructed view.
Patent GB-303813-A (GB)
Title: Improved process for introducing sulphocyanide groups into organic compounds
IPC: C07B45/00
Filed: 1927-09-05
Abstract: 303,813. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Sept. 5, 1927. Sulphocyano compounds; thiazoles; mercaptans.-The sulphocyano group is introduced into organic compounds by treatment with a halogen and an inorganic sulphocyanide in the presence of a neutral organic solvent in which all the reactants dissolve. In the case of primary aromatic amines having the p-position occupied, it is not necessary to prepare the sulphocyanogen in situ but molecular sulphocyanogen, obtained by reacting on a solution of the sulphocyanide in the neutral solvent with a halogen, may be employed. The neutral organic solvent, of which alkyl acetates and lower aliphatic alcohols are specially mentioned, may be saturated with an electrolyte, such as sodium chloride or bromide, if it is not unaffected by the action of the halogen or sulphocyanogen. According to the examples, (1) 4-sulphocyano-phenol is prepared by adding a solution of bromine in methyl alcohol to a solution of phenol and ammonium sulphocyanide in the same solvent; in the same way, alpha-naphthol yields 4-sulphocyano-1-naphthol; (2) in methyl alcohol saturated with potassium bromide is dissolved potassium sulphocyanide and 1-methyl- 2-amino-5-chlorobenzene on the one hand and bromine on the other; on mixing the solutions and adding water, 1-methyl-2-amino-3-sulphocyano-5-chlorobenzene separate out ; alternatively, bromine is added to a solution of potassium sulphocyanide in methyl alcohol saturated with common salt and the resulting solution of molecular cyanogen then run in to a solution of 1- methyl-2-amino,5-chlorobenzene rn methyl alcohol preferably saturated with sodium bromide, when the same product is obtained on addition of water; (3) 1-ethoxy-3-sulphocyano-4-aminobenzene is prepared by adding bromine in methyl acetate to p-phenetidine and sodium sulphocyanide dissolved in the same solvent; in the same way, 1- sulphocyano-2-amino-7-naphthol methylether is prepared from 2-amino-7-naphthol methylether; the latter product is transformed into the thiazole compound by heat; (4) a solution of molecular cyanogen in methyl alcohol prepared as described in (2) above is mixed with a solution of #- naphthylamine in the same solvent ; 1-sulphocyano-2-naphthylamine is precipitated on addition of water; (5) 1-sulphocyano-2-aminoanthracene is obtained by adding bromine in methyl alcohol to a solution of #-aminoanthracene and ammonium sulphocyanide in methyl alcohol; in an analogous manner, 2 : 6-diaminoanthracene yields 1 : 5- disulphocyano-2 : 6,diamino anthracene ; by heating each product witht aqueous sodium sulphide, 1-mercapto-2-aminoanthracene and 2 : 6-diamino- 1 : 5-dimercaptoanthracene are respectively obtained. Specifications 257,619 and 295,295 are referred to. Monoazo dyes.-The diazo compound of 1- methyl - 2 - amino - 3 - sulphocyano-5-chlorobenzene gives a red dyestuff when combined with R-salt.
Patent GB-838214-A (GB)
Title: Improvements in and relating to self balancing electrical instruments
Inventor: MARTIN ALBERT EDWARD
IPC: G01D5/12
Filed: 1955-08-12
Abstract: 838,214. Infra-red analysing apparatus. GRUBB PARSONS & CO. Ltd., Sir H. Aug. 2, 1956 [Aug. 12, 1955], No. 23320/55. Class 40 (3). In an infra-red analysing apparatus, radiation beams from infra-red sources 11, 12 are chopped by a chopper 10 at a frequency which is a sub-multiple of a mains supply frequency and are directed along a sample tube 13 and a comparison tube 14 to a detector 5, from the output of which an A.C. signal, at the chopping frequency and proportional to the difference between the two radiation beams reaching the detector, is applied through an amplifier 6 to a distorting or shaping circuit. The output from the distorting or shaping circuit is applied to a filter circuit which filters out a harmonic at the mains supply frequency, this harmonic being amplified at 7 and applied to one phase of a two-phase motor 8 at 90 degrees phase difference to the main supply which is applied to the other phase of the motor. The motor 8 drives an attenuator 15 in the path of the radiation beam through the comparison tube, and is arranged to adjust the position of the attenuator 15 until the output of the detector is zero. The position of the attenuator then provides a measure of the concentration of the component of interest in the sample under test. Specification 666,270 is referred to.
Patent GB-723276-A (GB)
Title: Photographic daylight developing tank for roll film
IPC: G03D13/06
Filed: 1952-09-17
Abstract: 723,276. Photographic roll-film developing tanks. KEHR, W., and STRAUSS, R. Sept. 17, 1952 [Sept. 20, 1951], No. 23387/52. Addition to 703,732. Class 98 (2). In a developing tank according to the parent Specification, a catch is provided between the auxiliary chamber and the winding-on core in the processing chamber, and comprises means for engaging the perforations at the end of a film which is not fixed to holding means and therefore becomes free on leaving the auxiliary chamber. As shown, the tank has an auxiliary chamber I separated from the processing chamber 3 by a partition 9. A cassette 2 is placed in chamber 1 and the end of the film 5 is fastened to a core 4 which is rotated to draw the film out of the cassette. A plate 10 is bent to have a U-shaped part fitting over partition 9 and flanges (not shown) resting on ledges 11 within the tank, and has hooks 10a spaced apart by the distance between the rows of perforations on the film. The tank is designed for cassettes in which the inner end of the film is not fastened in the cassette. When this end leaves the chamber 1, it engages the hooks 10a. A crank 8 is operated from outside the chamber to hold the film end on the hooks. Development then proceeds, the core 4 being rotated in alternate directions, as described in the parent Specification.
Patent GB-962901-A (GB)
Title: Tower-type regenerative gas or air heaters
IPC: G21C15/22
Filed: 1963-06-12
Abstract: 962,901. Hot-blast stoves. HEINRICH KOPPERS G.m.b.H. June 12, 1963 [June 18, 1962], No. 23463/63. Heading F4K. A tower type regenerative gas or air preheater in which the domed roof of the heating stack 1 is connected to an external combustion chamber 8 by tubular members 4, 7 interconnected with one another to be gas tight but freely movable, is characterized in that a jacket 16 forming a jacket space 24 covers the gap 13 between the ends of the two tubular members and is connected at one or both of its ends to a ring formed with apertures for the introduction of a gaseous coolant into the jacket space. In the form shown the tubular connecting members 4, 7 are constructed of refractory masonry with metal cladding 6 which has flanges 14, 15 over the ends of the masonry, these flanges being extended outwards to form baffles in the jacket space. Both ends of the jacket 16 are secured to rings 17, 18 which are welded to the metal cladding 6, and are connected to a gaseous coolant supply pipe 19, apertures in the rings directing the coolant into the jacket space 24. The supply pipe 19 is fitted with a valve 20, controlled by the pressure in the combustion chamber, which maintains the pressure of the coolant slightly above that within the air-heater. The jacket 16 may be a one-piece unit, or, as shown, it may comprise two parts interconnected by flanges 21, with the interposition of a gasket 22.
Patent GB-907805-A (GB)
Title: Improvements relating to holders for welding electrodes
Inventor: COX PATRICK CLEMENT
IPC: B23K9/28
Filed: 1957-07-24
Abstract: 907,805. Welding electrode holders. SUNDEBLAND ENGINEERING EQUIPMENT CO. Ltd. Oct. 21, 1958 [July 24, 1957], No. 23473/57. Class 39 (3). A welding electrode holder comprises an insulating tubular head 1 secured by means of a metallic cup-shaped protecting sheath 14 having cooling fins 18 to an insulating base member 10 having a lower part 17 transversely extended to constitute a shield or guard and formed with a bore 11 in alignment with that of the head 1 and having a downwardly extending boss 19 internally threaded at 20 to engage the externally threaded inner end 21 of a sleeve hand grip 22 also of insulating material. A slidable conductive clamping member 23 having its inner end 24 within the head 1 and its outer end 25 within the sleeve 22 is secured against rotation by a grub screw 31 co-operating with a longitudinal groove 29 in the member and is formed with an annular shoulder 26 which is caused to bear upon the inner end of the sleeve 22 by a compression spring 27 surrounding the member 23 and housed between the flange 26 and a shoulder 28 within the base 10. A slot 33 in inner end of the member 23 co-operates with a fixed clamping member 3 secured within the closed end 2 of the head 1, the clamping members being separated for the insertion of an electrode by unscrewing the sleeve 22 whereby the spring 27 acts on the member 23 to move it away from the fixed member 3. A blind hole 38 in the outer end of the member 23 receives the conductive core of a supply cable (not shown). In modifications (Figs. 2 and 6, not shown), the clamping pressure on the electrode is effected by a spring acting on the movable clamping member 2 and cam means bearing upon the base are manually aotuable by a pivoted hand lever to separate the clamping members.