baber/WOPTO huggingface dataset:
Patent GB-315423-A (GB)
Title: Improvements in smoke detectors
IPC: G01N27/12
Filed: 1929-07-12
Abstract: 315,423. Marr, G. M., and Marr, A. P. Julv 12, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 15, 1929]. Smoke detectors; smoke pipe systems. - A device for detecting smoke in closed spaces, for example in the compartments of a ship's hold, comprises sub-station detectors each consisting of a plurality of independent smoke observation chambers through which air from individual compartments is drawn, and master detectors each receiving the air from all the unit detectors of a sub-station. As shown, a suction device 1 draws air through a hood 35 in each compartment into one of a group of unit detectors 18 - - 21. Each such detector comprises a mirror 36, Fig. 6, a hinged door 26 with a glass panel, and an illuminating means 44 with reflector 43. Air enters the detector by an opening 40 of oval shape and so arranged that the air is spread across the face of the mirror. The air passes out to a manifold 41 common to the group of detectors. Smoke will cloud the mirror, this being seen through the glass door panel. The smoke may be detected by its smell if the door is opened. From the manifold 41, the air passes by a pipe 14 to a master detector 5 of similar construction. As shown, two groups of unit detectors 16, 17 deliver respectively to two master detectors 5, 5<1> arranged together. In a modification, each master detector comprises spaced conducting plates in an electric circuit including a source, of current. Smoke deposited on the plates will complete the circuit, the passage of current being indicated on a galvanometer. The Specification as open to inspection under Sect. 91 (3) (a) states also that the device may be used for detecting the presence of acid fumes or excessive moisture, and refers to the provision of an audible alarm in the circuit of the electricallyoperating master detector. This subject-matter does not appear in the Specification as accepted.
Patent GB-313579-A (GB)
Title: Improvements in pipe joints and methods of forming them
IPC: F16L21/025
Filed: 1928-07-25
Abstract: 313,579. Hume Pipe Co. (South Africa), Ltd. June 15, 1928, [Convention date]. Joint-making packing.-In a joint between a pipe 3 and an external collar or sleeve 4 wherein fluid-tightness is secured by a rubber &c. ring 6 which is rolled and squeezed into position between the two parts, the packing ring 6 is positioned by means such as a sheet 13 of cloth wrapped about the ring. Where a second pipe. 2 is to be jointed to the pipe 3 by means of a collar 4, Fig. 11, the ring 6 and cloth 13 are inserted between the ends of the pipes and the collar 4 is moved to the right until a tapered recess 11 therein is disposed around the packing ring. The ring is then forced into the recess 11 by pulling the end 13<a> of the enclosing cloth, Fig. III, and by further pulling the packing ring is rolled, and radially compressed, into the smaller end of the recess 11, Fig. I. The pipe 2 may be jointed to the collar 4 in known manner by a packing ring 5 which is initially housed in a recess 7 in the collar and is rolled into a reduced extension 9 thereof by the axial movement of the collar referred to. In a modification, Fig. VIII, the doubled sheet of cloth is replaced by a sheet of thin metal 14 which is wrapped around the pipe to form a cylinder and is provided with manipulating ears 15. Additional sealing may be effected by bitumen 17 forced into the collar cavity between the rings 5, 6, Fig. V. Specifications 310,452, [Class 99 (i), Pipes and tubes, Joints &c. for], 310,453; 310,454, 310,455, 310,456, 310,457, and 313,033, [all in Class 99 (i), Pipes and tubes, Joints &c. for], are referred to.
Patent GB-734649-A (GB)
Title: Improvements in or relating to plastic interpolymers
Inventor: FOLT VERNON LOUIS
IPC: C08F236/04
Filed: 1953-08-05
Abstract: Interpolymers are made by polymerizing continuously or batchwise, 25 to 45 mol. per cent of butadiene-1,3 and/or homologues thereof, 35 to 60 mol. per cent of a difluorodichloroethylene, and 10 to 35 mol. per cent of vinylidene chloride, in aqueous emulsion, suspension, or organic solvent solution, in the presence of a polymerization catalyst and optionally chain-terminators and/or plasticizers.  The polymerization may be stopped at any degree of conversion. Homologues mentioned are isoprene and dimethylbutadiene. Emulsifiers may be fatty acid, rosin acid or amine soaps, alkyl, aryl, aralkyl sulphonates, sulphates or mixtures.  In suspension systems agents such as gelatin, casein, clay, and polyvinyl alcohol may be used alone or in conjunction with a small amount of a surface-active agent.  In solution benzene, butane and hexane may be utilized. Modifying agents mentioned are alkyl mercaptans, e.g. t-dodecyl mercaptan, xanthogen disulphides, and carbon tetrachloride. Specified plasticizers are dioctyl phthalate, dioctyl adipate and tricresyl phosphate.  The catalyst may be hydrogen peroxide, benzoyl peroxide, potassium persulphate, cumene hydroperoxide, t-butyl hydroperoxide, terpene hydroperoxide, admixed if desired with reducing agents such as polyamines, sugars, or heavy metal complexes, or azo compounds such as alpha, alpha1-azodiisobutyronitrile.  The copolymers may be used as adhesives, coatings, or mouldings.
Patent GB-791424-A (GB)
Title: Improvements in apparatus for the optical examination of transparent solid material
Inventor: MORRISON SAMUEL JAMES
IPC: G01N21/91
Filed: 1955-07-26
Abstract: 791,424. Longitudinal lamps. THE BRITISH THOMSON-HOUSTON CO., Ltd. July 16, 1956 [July 26, 1955], No. 21607/55. Class 75(4) [Also in Group XX] Apparatus for rendering visible defects on a specimen of solid transparent material A consists of an elongated fluorescent light source B, saddles E with V-shaped grooves for locating the specimen between the lamp B and the viewer at X, screening means for substantially preventing - within a limited viewing angle - the source B and reflexions of the source and bright objects from the surface of the specimen A from being visible to the viewer X and a dark background screen H against which the defects may be viewed.
Patent GB-531535-A (GB)
Title: Improvements in and connected with adjustable supports for observation mirrors of road vehicles
IPC: B60R1/076
Filed: 1939-07-26
Abstract: 531,535. Look-out reflector for vehicles. HINTON, R. J. July 26, 1939, No. 21682. [Class 103 (ii)] An adjustable mirror-supporting arm 1 passes through the shank 4 of a hollow bolt and has a fitting 2 provided with a lug or two diametrical lugs which are urged by a spring 6 into notches in the head 3 of the bolt, whereby the arm is always returned to the same extended position. The spring 6 is arranged between a nut 5 on the bolt and a washer 8 secured by a split pin 9 on the arm 1. A clamp 7 for securing the device to the handlebar of a cycle &c. is provided.
Patent GB-990088-A (GB)
Title: Improvements in and relating to artificial flowers
IPC: A41G1/00
Filed: 1962-06-05
Abstract: 990,088. Artificial flowers. M. A. BENKERT. June 5, 1963 [June 5, 1962], No. 21700/62. Heading A4X. In an artificial flower, a pair of adjacent petal rings 10, 11 assembled on a stem 14 are provided with forwardly tubular projections 12, 13 respectively, the projection 12 on the upper ring 10 being snugly engaged within the projection 13 on the adjacent ring 11 to prevent relative rotation. One projection 12 may be a tight fit in the other projection 13. Alternatively, the outer surface of one projection 12 and/or the inner surface of the other projection 13 may be longitudinally serrated. A plurality of petal rings, such as 10, 11, may be assembled on a plastic coated wire stem 14 using a vertically mounted support tube 15. Specification 990,086 is referred to.
Patent GB-1462802-A (GB)
Title: Cutting apparatus
IPC: C03B33/027
Filed: 1974-01-07
Abstract: 1462802 Sawing apparatus MITSUBISHI RAYON CO Ltd 7 Jan 1974 [18 Jan 1973] 21702/75 Divided out of 1462801 Heading B5L [Also in Division C1] The disclosure is identical with some of that of the parent Specification 1,462,801, but the claims relate to an apparatus for cutting pieces from a travelling strip 10 of sheet material which comprises a first severing means including a strip cutter, e.g. 22a, and means for reciprocating the cutter through a cutting stroke extending diagonally across the strip to cut the latter right-angularly and a return stroke, a second severing means substantially identical to the first and positioned downstream thereof relative to the strip, and control means controlling the operation of the cutters and capable of starting the cutting cycle of one cutter while the other is still going through its cycle. Instead of the cutters being saws mounted on reciprocable frames as in Specification 1,462,801 they may be diamond cutters 47, 47<SP>1</SP>, Fig. 3, movable along fixed oblique tracks 45, 45<SP>1</SP>.
Patent GB-376039-A (GB)
Title: Improvements in or relating to stepped belt pulleys having a built-in electric motor
IPC: F16H9/06
Filed: 1931-07-30
Abstract: 376,039. Motor driving-arrangements. HIMMELWERK AKT.-GES., T³bingen, W³rtemberg, Germany. July 30, 1931, No. 21739. Convention date, Nov. 18, 1930. [Class 35.] A stepped belt pulley has a built-in electric motor in which both armature and field magnet are geared together by an intermediate toothed wheel. The field magnet a is keyed to a shaft b to which is secured also a toothed wheel m; a wheel k gearing with it has a fixed bearing pin n mounted on the frame supporting the bearing c of the shaft b, and gears with a toothed wheel i secured to the pulley h. The armature e of the motor is secured to the pulley h which is mounted on the shaft b through bearings f, g. The Specification as open to inspection under Sect. 91 (3) (a) comprises also applications to discs, pulleys or drums having a conical or cylindrical surface. This subject-matter does not appear in the Specification as accepted.
Patent GB-1255114-A (GB)
Title: Heat exchange system
IPC: F24F1/00
Filed: 1970-05-06
Abstract: 1,255,114. Heat transfer devices; heat pipes. Q-DOT CORP. 6 May, 1970 [14 May, 1969], No. 21850/70. Headings F4S and F4U. A heat transfer system 10, particularly for use in a ventilating system (see Fig. 3) for transferring heat between intake air and exhaust air, comprises a plurality of transverse fins 14 mounted on and extending between spaced, parallel heat pipes 12. The fins are divided into two groups separated by a baffle 34. In use heat is transferred between intake air flowing over one group of fins and exhaust air flowing over the other group. The rate of heat transfer is directly proportional to the temperature differential between the intake and exhaust air. Each heat pipe includes a vaporizable-condensable working fluid 32 such as water, ammonia or methanol, and a porous capillary wick 26 contained in a tube 20 closed by end caps 22, 24. The heat pipes are supported in and extend between end members 16, 18.
Patent GB-886330-A (GB)
Title: Improvements relating to jet-deflection means for use with vertical take-off aircraft
Inventor: CONWAY HUGH GRAHAM
IPC: B64F1/26
Filed: 1959-06-25
Abstract: 886,330. Airfield jet-deflecting apparatus. SHORT BROS. & HARLAND Ltd. May 10, 1960 [June 25, 1959], No. 21867 /59. Class 4. [Also in Group XII] A gas stream deflector apparatus, adapted to be placed beneath the downwardly directed lift engines of vertical take-off jet-propelled aircraft when stationary, comprises a deflector member having two oppositely disposed concave surfaces G which are presented to the efflux gas stream and are effective to divide the stream into two portions which are deflected in opposite horizontal directions away from the aircraft. Two casings A mounted on wheels B and D are positioned back to back so that the propulsive gases impinge on deflecting sheets G, H and are emitted horizontally from outlets F. The edge GA of one sheet G has a lip which extends over the edge GA of the other sheet G to form a crest, which lies beneath the fore-and-aft centre line of the lift engines. Screw-jacks C, K are provided so that the two casings A may be lowered to the ground. The main undercarriage wheels may be located on hinged ramps J to ensure that the apparatus is correctly positioned.
Patent GB-239512-A (GB)
Title: Improvements in concrete walls
IPC: E04F13/04
Filed: 1925-09-01
Abstract: 239,512. Kupelwieser, H. Sept. 2, 1924, [Convention date]. Reinforced concrete; walls.-A concrete construction having a flat or curved wooden skeleton and suitable for walls in general and for water or oil tanks and silos, comprises wooden uprights a covered on both sides with laths b, which cross the uprights at right-angles or obliquely, and may be dovetailed in section. The concrete is sprayed on to embed the skeleton. Iron rods h may be secured between the laths or uprights.
Patent GB-219740-A (GB)
Abstract: 219,740. Siemens Bros. & Co., Ltd., and Christian, D. A. May 1, 1923. Automatic exchange systems; selectors.-In systems using preliminary selectors, a single line relay R is provided common to a group of lines and is associated with the calling line by a hunting switch FS. In one system, Fig. 1, the switch FS comprises a multi - fingered wiper 2 arranged to make contact simultaneously with all the lines in a group but one, and a wiper 1 which makes contact with the remaining line. These wipers may co-operate with the same terminal bank. When subscriber TS makes a call, relay L energizes to start the motor magnet D<1> of switch FS which then hunts for the calling line under control of relay R. When the calling line is found, relay L releases and relay R pulls up and starts up the preliminary selector over wipers 3, 4. The energization of the switching relay T releases relay R and the switch FS is stepped on to its normal position. The wipers 34 and their banks may be combined. In the modification shown in Fig. 2, the multiple wiper and its bank are omitted and a relay C is provided having a contact for each line in the group. The starting relay L is energized over one of these contacts, but on the first step of switch FS, relay C energizes and breaks all its contacts so that relay L cannot re-energize until the return of the switch to normal releases relay C..
Patent GB-692498-A (GB)
Title: Improved submerged resistor induction furnace
Inventor: TAIT DONALD BLAKIE
IPC: H05B6/20
Filed: 1950-09-06
Abstract: 692,498. Induction furnaces. MORGAN CRUCIBLE CO., Ltd. Sept. 4,1951 [Sept. 6, 1950], No. 21989/50. Class 39(iii) The complete melting channel loop of a submerged resistor induction furnace is provided with a preformed, prefired tube of carbon, graphite, plumbago or silicon carbide, so that the furnace may be started from cold with non-continuous solidified metal in the melting loop. Thus preformed, sectional melting loop tubes 20, 21, 22 are cemented or threaded into blocks 23, 24, the latter carrying a horizontal extension tube 25 with a removable tapered plug 26. In Fig. 5, the ends of the melting loop 4 are closed by temporary plugs 8, and the tube is supported on a pre-cast refractory concete block 5 in the furnace casing 1. The transformer core 2 and primary winding 3 are supported in place and a cast refractory mix which sets with cold water is added to the casing preferably to just above the top of the tube 4. The plugs 8 are removed when the concrete has set. The concrete is rebated at 9 and a ramming material is added to the casing around a former 10, which is finally removed.
Patent GB-536090-A (GB)
Title: Improvements in and relating to aircraft flight indicators and like instruments
IPC: B64D45/00
Filed: 1939-07-28
Abstract: 536,090. Thermionic &c. distributers; radio-navigation. SPERRY GYROSCOPE CO., Inc. July 28, 1939, No. 22016. Convention date, July 28, 1938. Addition to 496,521, [Group XXXVIII]. [Class 40 (v)] [Also in Group XXXVIII] In a system in which, as described in the parent Specification, the readings of a number of instruments, especially aircraft instruments, are shown simultaneously on a cathode ray tube, the distributer by means of which the various instruments take control in turn is of electronic type, and a further similar electronic device is provided for suppressing the beam at the moment of transition from control by one instrument to control by the next to eliminate the return trace. The invention also comprises a switch whereby the trace that indicates deviation from the course and landing beams at the end of a journey is used during the journey to indicate deviation from a pre-determined altitude. A fixed representation of an aircraft is shown on the screen to assist in the use of the multiple indicator for navigating. In the system shown, tubes 104, 105 are fed with the same voice frequency but 90 degrees apart in phase and consequently produce a circular trace which is normally concentric with the screen. Movements of the altimeter with respect to a pre-arranged point unbalance the input to modulators 131 and cause a direct voltage to develop across resistance 113 to cause the circular trace to move up or down. When the switch 13 is operated the altimeter is dissociated and the trace is moved up or down under control of the landing beam receiver 27 and left or right under the control of the course beam receiver 26 which produces a direct voltage across resistance 110. The valve pairs 60, 66; 82, 83 ; 88, 89 ; 104, 105 providing the outputs of the various instruments are normally inoperative because their screens are negatively biased. They are made operative for the greater part of each quarter-cycle of 60-cycle alternating current by an arrangement of two pairs of neon &c. tubes connected across chokes 133, 134. The respective tubes of a pair are fed with 60-cycle current 90 degrees apart in phase and the arrangement as a whole produces four flat-topped pulses per cycle. Since a perfectly square control pulse is not produced there is a tendency for the beam to return to its mid-position in the intervals between control by successive instruments and, to prevent the resulting return trace, the cathode ray tube is disabled for a brief period in every quarter-cycle of the 60-cycle distributercontrol current by an arrangement comprising a pair of neon tubes 153, 154 fed with 120-cycle currents displaced in phase with respect to each other and the original wave so that when the combined wave is passed through a full rectifier 155, brief unidirectional pulses are produced across resistance 37 for disabling the cathode ray tube for a short interval at the instant of change from control by one instrument to control by the next.
Patent GB-305249-A (GB)
Title: A new and useful process for the production of an improved elastic composition
IPC: C08L91/00
Filed: 1928-02-29
Abstract: 305,249. Galbraith, W. T., and Mills, A. E. Feb. 29, 1928. Plastic compositions containing glue, gum, &c. -An elastic composition consists of 50 lbs. of paper or synthetic, natural, or reclaimed rubber, 50 lbs. of heated vegetable oil, 5 lbs. of synothin, 20 lbs. of gluten, 3 quarts of water-glass, 20 lbs. of glue, 40 lbs. of gum, such as arabin or cerasin, 5 lbs. of asbestos, and 2 lbs. of casein. The mixture is immersed in sulphuric acid or paraffin, washed with ammonia, digested with alcohol and sal ammoniac and dried. The product is rendered non-perishable by treating with sulphur fumes and the addition of shellac; washing in alcohol, acetone and water makes it transparent ; mixing in 3 parts of tannic acid stabilizes the elasticity.
Patent GB-1510332-A (GB)
Title: Apparatus for reproducing a coloured image
IPC: G02F1/01
Filed: 1975-05-22
Abstract: 1510332 Colour image reproduction; filters; controlling light XEROX CORP 22 May 1975 [20 Sept 1974] 22038/75 Headings G2F and G2J A colour image reproduction system is described and claimed in which there are recorded at different angular orientations on an imaging member 18 at least two images respectively corresponding to the colour content of at least two colours of an original image (e.g. transparency 16). Readout illumination from extended light source 40 is converted (e.g. by apertured mask 46) to a plurality of point sources and directed upon the imaging member 18. The information-modulated illumination is then passed through an appropriate light filter 54 to provide a reproduction of the original image at the output image plane 64. The imaging member 18 may be as shown in Fig. 2 wherein there is provided a 3-colour diffraction grating 32, index matching liquid 36, fibre optic plate 38, conductive coating 22, photoconductive insulating layer 26, deformable elastomer layer 28, flexible metallic layer 24 and AC/DC source 30. Layer 28 may alternatively be of Piezoelectric material. Other imaging members 18 for the system of Fig. 1 include frost or relief imaging members. In a transmission version of the system Fig. 6, (not shown) the imaging member (66) may comprise conventional B/W photographic film or a 5-6 micron thick layer of poly-n-vinylcarbazole sensitized with 2, 4, 7 dinitro-9-fluorenone arranged on a transparent conductive substrate, electrically charged e.g. by corona, brought into contact with a fibre optic element carrying a colour grating and exposed to a multi-colour original through the fibre optic element. Filters. The 3 colour grating 32 of Fig. 2 is made up of vertical stripes 33a of magenta, horizontal stripes 33b of cyan and yellow stripes 33c at 45 degrees to the other stripes. The stripes are provided on a transparent substrate 34 and have a periodicity of 40-100 1p/mm. Alternatively Fig. 3, (not shown) three separate fibre-optic plates each carry a set of differently coloured stripes e.g. formed in photo-resist. The filter 54 of Fig. 1 may be as shown in Fig. 5 in which there are provided red filter strips 56, green filter strips 58, blue filter strips 60 and a plurality of opaque areas 62 corresponding to the array of sources produced by mask 46 (Fig. 1). Fibre-optic plate 38 may be electrically insulating or conductive,  inch thick and contain fibres of 3-20 Ám in average diameter. The fibres may be rod-like, thread-like or conical. The fibres may be clad with absorbing on non-absorbing materials (some fibres may have absorbing cladding, some non-absorbing). The plate may transmit U.V. and near I.R. Specification 151033375 is referred to.
Patent GB-338547-A (GB)
Title: Improvements in or relating to pulp drying
IPC: D21F9/04
Filed: 1929-07-18
Abstract: 338,547. Sundstr÷m, E. F., and StÚen, K. E. July 18, 1929. Cylinder paper-machines. -Apparatus for separating material, such as paper pulp, from a liquid holding it in suspension comprises a closed chamber part of the bottom of which is formed by the suriace of a perforated rotating drum and which is provided with means for supplying the suspension to the cnamber under pressure. A suspension is delivered from an elevated receptacle 4, Fig. 1, to a closed chamber 1 and the pulp forms a layer 5 on a drum 2 and is removed around a roller 6. As shown in Fig. 2, the suspension is supplied under pressure through an inlet 3 and air or other gas under pressure through an inlet 8. The air or gas serves to dry the pulp on the drum above the liquid level. An endless band 9 of felt or wire cloth may be arranged to contact with the pulp layer. As indicated in Fig. 4 a further stage of drying may be carried out in a separate chamber having one or more rotary drums forming part of the base. The layer is guided round these drums by rollers 11. Such a chamber may be divided into compartments by partitions 12, each compartment having its own inlet 8, through which gas at the particular temperature and pressure desired for that compartment is admitted. The rotation of the drums 2 may be continuous or intermittent. Suction chambers may be provided within the drums.