baber/WOPTO huggingface dataset:
Patent GB-1488804-A (GB)
Title: Electric lamp
IPC: H01J61/36
Filed: 1976-03-29
Abstract: 1488804 Pinch seal PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 March 1976 [1 April 1975] 12471/76 Heading ClM [Also in Division Hl] In an electric discharge or incandescent lamp having a quartz glass envelope with a gas filling, and a pinched seal in which is incorporated a molybdenum foil 14, Fig. 2, welded to outer and inner conductors 16 and 20, the inner conductor is of molybdenum, 18, adjacent the weld, the portion 18 being at its opposite end welded endto-end to a part 20 which consists of tungsten and extends further into the lamp. Preferably, as shown, the weld between parts 18 and 20 is located within the pinch. Reference is made to the use of the double envelope, mercury vapour lamp (Fig. 1, not shown).
Patent GB-164594-A (GB)
Title: The manufacture of new indigoid vat dyestuffs
IPC: C09B7/08
Filed: 1920-05-05
Abstract: Indigoid vat dyes of the type described in Specifications 7819/09 and 28043/09 are obtained by condensing a halogenated isatin (in which the a -ketonic oxygen is replaced by a substituent such as halogen, sulphur, the anilido-group &c.) with 1 - oxy - 6 - naphthol ether or a halogen substitution product thereof, or with 1 : 6 dioxynaphthalene followed by alkylation or aralkylation; the products may be further halogenated.  The dyestuffs obtained from 5 : 7 dichlorisatin a  - chloride and 1 - oxy - 6 - naphthol ether dyes cotton greyish blue to black shades, or after chlorinating, black shades, from a hydrosulphite vat; that from dibrom - b  - naphthisatin chloride and 1 - oxy - 6 - naphthol ether dyes fast olive green shades; that from 1 - chloro - or bromo-2 : 3 - naphthisatin chloride and 1 - oxy - 6 - naphthol ether dyes greenish grey; that from 5 : 7 - dibromoisatin - a  - chloride and chloro - 1 - oxy - 6 - naphthol ether dyes greyish blue.  1 - Oxy - 6 - naphthol ethers are obtained by acetylating 1 - amino - 6 - naphthol, alkylating the -OH group, removing the acetyl group and replacing the amino group by the hydroxy group in the usual manner.  Chlor - 1 - oxy - 6 - naphthol ethers are obtained by chlorinating 1 - oxy - 6 - naphthol ethers with SO2Cl2 in glacial acetic acid solution.  Brom - 1 - oxy - 6 - naphthol ethers may be prepared by brominating the carbonate of 1 - oxy - 6 naphthol ether and then splitting off the carbonate group.
Patent GB-632156-A (GB)
Title: Improvements in or relating to propellor pencils
IPC: B43K21/08
Filed: 1946-04-26
Abstract: 632,156. Propeller pencils. THORNTON, A. A. (Barry, T. F. H.). April 26, 1946, No. 12688. [Class 146 (iii)]  The end 6 of a rod 5 fixed to a lead-holder 7 extends through a helical slot 2 in a tube 1 normally frictionally held by abutments 10, 13, movement of the lead being effected by rotating an inner tube 3 having a longitudinal slot 4, whereby the part 6 travels along the slot 2 until the former engages either of the abutments 10, 13 whereupon the tubes 1, 3 rotate together and damage to the mechanism is avoided. The abutment 10 is fixed to an outer barrel 9, and the abutment 13 can swivel on the tube 3 ; each abutment may have a conical recess to increase the drag on the tube 2. The tube 3 is rotated by means of a knob 12 frictionally held on a sleeve 11 fixed to the tube. The end of the sleeve contains spare leads 8a and is closed by a plug 15.
Patent GB-554681-A (GB)
Title: Improved method of regenerating a catalyst
IPC: B01J38/12
Filed: 1941-10-01
Abstract: 554,681. Regenerating catalysts. TRIGGS, W. W., (International Catalytic Oil Processes Corporation). Oct. 1, 1941, No. 12696. [Class 1 (i)] In the regeneration of catalysts by means of an oxygen-containing gas the combustion products withdrawn from the chamber 2 are subjected to a second burning operation in a combustion chamber 5, cooled in a heatexchanger 6, mixed with further oxygen through line 8 or 8a and recycled to the regeneration chamber.
Patent GB-749220-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P7/30
Filed: 1954-05-03
Abstract: 749,220. Automatic speed centre! systems. BROWN, W. J. May 3, 1954 [May 1, 1953 ; April 19, 1954], No. 12727/54. Class 38 (4). [Also in Group XXXVII] A converter 1, which may be a grid-controlled rectifier, delivers power to a series motor having field winding 5 and armature 6, the converter being regulated by supplying a signal voltage to terminals 8, 9 of a control device 15. A voltage dependent upon the motor current is developed across resistor 341, the signal voltage being derived from terminal 342 and tapping-point 11 in a potential divider 10, so that the system operates to maintain the ratio between armature voltage and field current substantially at a predetermined value provided that the motor is free from magnetic saturation, the speed remaining constant regardless of changes in the load. The voltage representative of the motor current may be tapped from a non-linear resistance associated with or forming partly or wholly the resistance in series with the motor, the resistance-voltage characteristic of the non- linear resistor being such as to compensate for the non-rectilinear relation between the flux and motor field current. It may be arranged that the compensation for magnetic saturation at low speeds is less than that at high speeds of the motor. A saturable reactor may form part of the control circuit for varying the output of the converter, and the reactor may have one D.C. control winding energized in accordance with the armature voltage wl ilst a second D.C. control winding is energized in an opposite sense in accordance with the motor current. The voltage-responsive winding may be connected across the armature alone, or with the field winding and/or at least a part of the current-sensitive element in series therewith. The second D.C. control winding of the reactor may be connected in series with the motor, across a series resistance, or across the motor field winding. In one arrangement, the voltageresponsive winding is omitted. A capacitative or inductive impedance may be associated with the potential divider 10 to compensate wholly or partly for the time constant of the motor. The motor may have separate forward or reverse field windings, and the signal voltage applied to the control device through a rectifier so that the device only responds to a signal voltage of the appropriate polarity. Specifications 656,816 and 697,609 are referred to.
Patent GB-493033-A (GB)
Title: Improvements in or relating to crucibles
IPC: F27B14/10
Filed: 1938-04-30
Abstract: 493,033. Crucibles. HALL, I. April 30, 1938, No. 12941. [Class 82 (i)] A crucible particularly for use in gas or oil fired furnaces comprises an inner container of corrosion-resistant steel, cast iron, or other metal and an outer casing of refractory material. The outer casing may surround the whole of the inner container or it may be in the form of an open-ended sleeve surrounding all or part of the sides of the container. In other forms, the inner container 5 may have a thickened rim 6, Fig. 1, which protects the top of the casing 8, or it may be formed with a shoulder 12, Fig. 4. The inner container may have a pouring spout and lifting hooks.
Patent GB-405623-A (GB)
Title: Improvements in high frequency inductance devices
IPC: H01F21/06
Filed: 1932-05-05
Abstract: 405,623. Inductances; transformers; adjusting wireless apparatus. JOHNSON LABORATORIES, Inc., 609, West Lake Street, Chicago, U.S.A.-(Assignees of Polydoroff, W. J. ; 609, West Lake Street, Chicago, U.S.A.) May 5, 1932, No. 13029. Convention date, May 7, 1931. [Class 37.] Tuning-apparatus for wireless receivers comprises one or more variable inductance units each having a fixed coil and a longitudinally movable core of finely divided magnetic particles, the coil and core being completely enclosed in an electrical screen and provided with external tuning control means. The coils 4 which have a ratio of length to diameter of 1.5 to 1, or 2 to 1, and have an inductance variation from maximum to minimum of about 8 to 1, are carried by telescoping shield parts 7, each coil sliding in an annular slot 2 in its core 1. The core parts are secured to the shield sections 6. The units are mounted on a base-plate 8 and are adjusted by rack-and-pinion 16, 17, a pointer 19 being associated with a scale 20 which has a pin-and-slot connection with one of the units. The units are independently adjustable upon the base-plate for matched tuning. In another construction, four units are combined in a frame-work, and the adjustment is effected by belt-and-pulley gear. Specification 403,368 is referred to. The Specification as open to inspection under Sect. 91 includes a number of diagrams of impedance networks, tuned oscillator and amplifier circuits. These diagrams do not appear in the Specification as accepted.
Patent GB-697290-A (GB)
Title: A new composition containing hydrofluoric acid
IPC: C11D7/08
Filed: 1950-05-25
Abstract: Stable gels are formed from hydrofluoric acid and a cellulose ether such as methyl cellulose or carboxy methyl cellulose.  The gel may be used as a cleansing composition (see Group III).  In an example, 100 g. of methyl cellulose are soaked in 500 c.cs. of boiling water for two hours and then a further 400 c.cs. of water are added.  The gel is cooled to 60 DEG  F. and 500 c.cs. of 60 per cent hydrofluoric acid stirred in.  Specification 532,816 is referred to.ALSO:A stable gel formed from hydrofluoric acid and an aqueous colloid is used as a cleansing composition for glass.  The aqueous colloid may be a vegetable gum such as Karaya, Tragacanth, Hydra or Carobia or a cellulose ether such as methyl cellulose or carboxyl methyl cellulose.  In an example 60 g. of Gum Karaya are well stirred with 150 ccs. of industrial alcohol and 790 ccs. of water added.  To the resultant gel 500 ccs. of 60 per cent hydrofluoric acid are added. Specification 532,816 is referred to.
Patent GB-131528-A (GB)
IPC: B26B21/50
Abstract: 131,528. Ostrovsky, H. Dec. 3, 1918. Razors, safety. A safety razor for two-edged blades is arranged so that the angle between the comb and the handle can be varied and so that the blade can be cleaned and stropped without removal from the razor The blade a, Figs. 4, 5, and 6, is held between plates b, c having projections e at the ends forming pivots, which engage in spring arms f on a bridge-plate g. The comb i carries a frame l terminating in a stud m, which engages notches in a spring- pressed plate o so that the comb can be locked at any desired angle. The comb also carries pins j, Fig. 10, which pass through holes in the blade and the plates a, b. For stropping, the comb is removed and the blade either left free to rock, in which case guide-arms r of the spring-plate o act as stops to limit the motion and the spring plate is kept'out of the way by a spring clip w, or the blade is locked in the position shown in Fig. 6 by engaging the ends of the plates in notches v in the guide-arms r. A thick blade, shown in Fig. 14, may be used, in which case the plates b, care dispensed with and the pivots are formed on the blade itself.
Patent GB-178345-A (GB)
Title: A device for safeguarding watches from theft
IPC: A44C19/00
Filed: 1921-05-09
Abstract: 178,345. Hasenkõmper, M. May 9, 1921. Pockets, retaining watches in.-A receptacle for a watch is fastened inside the pocket and serves to retain the watch in position until release is effected by manipulation of a lever or the like from without through the wall of the pocket. The plates 1, 2, shaped as shown in Figs. 2 and 5, are hinged together by a pin 3 to form the receptacle. The plate 1 is fastened within the pocket by means of sewing-holes 8. The catches 10, attached to the lever 9, engage the notched portions 11, holding the receptacle closed and thus securing the watch. Release is effected by pressing together the lugs 13 of the levers 9 against springs 12. The additional lever 17 at the rear of the plate 1 can only be adjusted from the rear; when depressed it secures the pin 14 attached to the lug 13, thus locking the receptacle m the closed position.
Patent GB-314634-A (GB)
Title: Improvements in revolving cylinder engines
IPC: F01B13/06
Filed: 1928-05-04
Abstract: 314,634. Auvrain, F. d'. May 4, 1928. Radial-cylinder engines; revolving-cylinder and reciprocating-piston type.-An engine has four radial cylinders 1, 1<1>, 1<11>, 1<111> rotating in pairs about parallel axes. The cylinders 1, 1<1> are connected to a plate 3, which rotates about a valve arranged around the shaft 31 and is provided with a conical valve chamber connected to the cylinder ends by pipes 8, 8<1>. Similarly cylinders 1<11>, 1<111> are connected to a plate with a valve chamber which rotates around the shaft 31<1>. The distance between the axes is varied to vary the stroke of the pistons. The bearings carrying the shafts are adjustably mounted on the frame, or the frame may be made in two parts relatively adjustable, each part carrying the bearings of one shaft.
Patent GB-552618-A (GB)
Title: Improvements in or relating to the weaving of fabrics
IPC: D03D41/00
Filed: 1941-10-14
Abstract: 552,618. Cutting wefts in looms. SULZER FRERES SOC. ANON. Oct. 14, 1941, No. 13210. Convention date, Dec. 20, 1940. [Class 142 (iii)] In weaving two or more separate pieces of fabric simultaneously on a loom, the weft threads 8 extending between two adjacent pieces are cut immediately after the reed 3 has begun its return movement from beating-up position 3a and before the reed has left the last inserted weft thread.
Patent GB-783312-A (GB)
Title: Diaphragm valves
IPC: F16K7/12
Filed: 1955-05-09
Abstract: 783,312. Making plaster &c. moulds. GRINNELL CORPORATION. May 9, 1955 [Sept. 15, 1954], No. 13317/55. Class 87(2). [Also in Group XXIX] The compressor or actuator 41 of a diaphragm valve is shaped to conform to those portions of the diaphragm 38 between its clamped periphery and the transverse clamped portion adjacent the weir 22 when freely distorted in the closed position but not under line pressure so that the diaphragm has complete backing support under line pressure. The compressor is shaped by a moulding process. The ends of a conventional compressor are cut off and part of the valve bonnet 32 is cut away at 72. With the diaphragm 38 closed on the weir 22, but not under pressure, a plaster-like mixture e.g. of Plaster of Paris, or a material known under the Trade Name Tamastone is run into the valve bonnet 32 as at 74, Fig. 9, to form a male casting 78, Fig. 10. The bonnet is then removed and inverted and the male casting 78 is surrounded by a sheet 76 of metal or other material to enable a female casting 80 to be made as shown in Fig. 10. The casting 80 is then conveniently sectioned to enable a mould for the compressor to be made by known methods. The contour of the compressor may alternatively be taken directly from the mould 78 if desired. Reference has been directed by the Comptroller to Specification 732,201 [Group XXIX].
Patent GB-644947-A (GB)
Title: Improvements in fluid-blast electrical switches
IPC: H01H33/70
Filed: 1948-05-14
Abstract: 644,947. Fluid-blast switches. CZECHOSLOVAK METAL & ENGINEERING WORKS. NATIONAL CORPORATION, and HOUST, F. May 14 1948, No. 13342. Convention date, May 16, 1947. [Class 38(v)] A fluid-blast switch in which the arc-extinguishing blast is provided by a supply of compressed air, by the gases evolved by the decomposition of insulating material, or by gases evolved by oil, has a rotary blade system to which rotation is imparted by the gases, the blade system being effective to assist in deionizing the gases and to assist in the application of fresh quenching fluid to the arc. In the air-blast switch of Figs. 1 and 2 an axially-moving contact 4 co-operates with a fixed contact 1, both contacts being provided with arcing horns 3 disposed in a slot 7 in the insulating tube 6 surrounding the contacts. The blade system 8 is fitted around the tube 6 and has its blades arranged at an angle to the plane of the slot 7, the blades being subdivided and supported by partitions 9. When the switch is opened, an arc is drawn between the horns 3 and the gases caused by or flowing through the arc impinge on the blades 8 causing them to rotate. The arc is disrupted at the extremities of the horns 3 by the blades, which also bring cells (i.e. the spaces between the blades) of un-ionized fluid opposite the arc horns. Blast-gas may be admitted to the interior of the tube 6 by means of pipes 14, 15 and the contact 4 if hollow, and arrangements such as slot 17, may be provided for scavenging the blades by means of air under pressure. The blade system 8 may comprise several co-axial or superimposed runner wheels with blades which may have different admission angles, and the partitions 9 may be of conducting material. Figs. 3,and 4 (not shown) illustrate the application of the invention to an oil blast circuitbreaker.
Patent GB-133484-A (GB)
IPC: D21F9/02
Abstract: 133,484. Ligterink, J. H. P. Oct. 25, 1918. Coated paper; pulp, adding special substances to; paper, treating with special materials; papermachines.-Comprises improvements in the invention described in Specification 12663/04. Floor coverings which may be used as substitutes for linoleum are waterproof and bad conductors of heat and sound, and having a basis of paper, are obtained as follows. The paper is produced from pulp which is suitably coloured by adding the colouring-material to the pulp in the Hollander, and is made in the paper-machine of the thickness and width of ordinary linoleum in rolls of continuous lengths, suitable modifications being made in the paper-machine. The material is then coated on both sides with a mixture of equal parts of boiled and unboiled linseed oil, dried, and painted with linseed-oil paint, and after again drying, the pattern is applied to one side in the usual manner. In the paper-machine, the wirecloth 2 is longer than usual and made to slope downwards to the feed-rollers 1, which are adjustable; top sieves 9, 3 are arranged above the wirecloth to prevent the flowing of the pulp thereon, the presses 4 are provided with top felts 5, and the guide-rollers 6 are made larger than usual.
Patent GB-133525-A (GB)
IPC: F02M21/06
Abstract: 133,525. Burgess, W. E. Nov. 23, 1918. Vaporizers, external.-The heating at starting of the vaporizers of engines, and of heating and lighting burners using heavy oil, is effected by the action of water upon quick lime which is subsequently dehydrated. The figure shows an engine vaporizer in the coil A of which the vapour is formed, and receives heat from exhaust gases passing through the pipe C and around the casing B which contains lime G. Water is admitted at F at starting, and afterwards the lime is revivified by the heat of the exhaust. Air may be heated in the pipe A.
Patent GB-709737-A (GB)
Title: Improvements in and relating to test-apparatus for identifying wires
IPC: G01R31/02
Filed: 1951-06-05
Abstract: 709,737. Test apparatus for identifying wires. VUILLE, B. A. Sept. 5, 1952, [June 5, 1951.] No. 13357/51. Class 37. In test apparatus for identifying wires in a group, e.g. each core in a ten-core cable where only the ends are available as at test positions A and B in Fig. 1 there is a different or identifying value of circuit resistance for each core or wire under test. In Fig. 1 at A there is a test unit 19 and wire ends 23 are connected to terminals 10 which are numbered 1-10 and terminal number 10 is earthed and equal value resistors are connected across adjacent terminals. At B there is a test unit 2 i wherein a milliammeter or ohmmeter 30 which is calibrated 1-10 reads full scale when switch 36 is closed to earth. The operator at B connects each wire end 24 in turn to terminal 36 so that instrument 30 reads 10 for the wire on terminal 10 (this wire short circuits switch 36) and indicates approximately for each wire 1-9 with each wire 1-9 connecting in circuit a different total resistance between the corresponding terminal 10 and earth via one or more resistors 18. The test unit 21 is formed with a row of wire holders 26 numbered 1-10 corresponding to terminals 10 and as each wire is identified it is placed in the appropriate wire holder 26. If more than 10 wires have to be identified this may be accomplished in lots of 10. For identifying up to 20 wires at a time Fig. 1 may be modified so that resistors 18 constitute one arm of a bridge network and test unit 21 has two fixed resistor arms and a bridge-balancing potentiometer arm scaled appropriately e.g. 1-20. In another arrangement the test unit 19 is modified so that each of the terminals 10 is connected to earth through a resistor of unique value. Where no earth circuit is available the test unit of Fig. 2 may be utilized and this comprises different value resistors 18 in series with rectifiers 40. In the case of Fig. 2 the operator at B with the aid of a chart identifies the wires by connecting pairs of wire ends to terminals 35 and 34 (unearthed). The milliammeter reading for any pair of wires is unique since all the resistors 18 are of different values. The rectifiers are similarly directional and are included to protect the milliammeter 30.
Patent GB-135226-A (GB)
IPC: F22B37/22
Abstract: 135,226. Thompson, W. J., and Smith, V. Aug. 21, 1918. Water-tube boilers; drums.-In water-tube boiler drums having pressed-out flat surfaces a, b for receiving the tubes, the surfaces are each of a width to receive two or more transverse sets of tubes, and the cylindrical shape of the drum is maintained at the portions between the flat surfaces. The surfaces are preferably each of a length to receive two or more tubes of each set of a pair of sets, or of all the members of a group of sets.
Patent GB-135254-A (GB)
IPC: B64C9/02
Abstract: 135,254. Blackburn Aeroplane & Motor Co., and Morgan, D. T. Nov. 13, 1918. Steering.-A rudder-bar formed of two separate arms 1, 2 independently mounted on a pivot 3, as described in Specification 128,999, is provided with foot-plates 12 pivoted at 13 to the arms 1, 2 and connected by pivoted rods 15, 16 to a pivot 17 in line with, and in the same horizontal plane as, the pivot 3, so that the foot-plates remain parallel to themselves during the movements of the rudder-bar. The ends of the arms 1, 2 are adjustably connected to the operating- cables by means of plates 5 formed with series of holes 19 to receive attaching-pins 18.
Patent GB-611670-A (GB)
Title: Improvements in or relating to cattle bowls
IPC: A01K7/06
Filed: 1946-05-04
Abstract: 611,670. Drinking appliances for animals. SALOPIAN ENGINEERS, Ltd., and BURN, R. M. G. May 4, 1946, No. 13566. [Class 5 (ii)] In a cattle-watering bowl having a horizontal valve C operated by a nose-piece depressible by the animal, the inlet spout b enters the bowl G near the rear thereof and extends downwardly to a point near the bottom of the bowl. Integral with the bracket A is a valve housing B internally threaded to receive a detachable valve C comprising a body within which a spring- pressed plunger d is slidably mounted. Water enters the housing B through a branch socket b<SP>1</SP>, passes through a hollow plug c and enters the bowl G through the downwardly-depending spout b. The valve is opened by the animal through nazal pressure on a lever (not shown) pivoted to lugs c<SP>6</SP> on the top of the housing. The bowl G is detachably held between the spout b and a screw clamp J pivoted to the bracket A.