baber/WOPTO huggingface dataset:
Patent GB-429734-A (GB)
Title: A combined fire and burglary or like alarm system
IPC: G08B19/00
Filed: 1934-10-26
Abstract: 429,734. Fire and burglar alarms. SIMPERE, A., 16, Avenue de l'Opera, Paris. Oct. 26, 1934, No. 30769. Convention date, June 9. [Class 47 (i)] [See also Group XXXVIII] A combined fire and burglar alarm system comprises a burglar alarm circuit which operates to actuate an alarm in case any burglar contact opens, and a fire alarm which is actuated through a retarding device so that it is not actuated in case of momentary opening of a fine contact due, for example, to vibration or shock. Fire and burglar circuits both normally closed and comprising respectively the fire, for example bi-metallic, contacts 20 and the relay 41, and the burglar contacts 19 and relay 42, are energized from supply leads 13, 14 from a mains transformer 10 and accumulator 17. The contacts 19 are connected in series with the lead 14, the terminals 61, 64 of relay 42, the brushes 83, 84 of a centrifugal switch 85, and the lead 13. The armature 44 of relay 42 carries arms 68, 69 and is such that, when released, it will not return to attracted position. The arms 68, 69 respectively control normally-open contacts 52<1> and closed contacts 53<1>. If a contact 19 is opened, the relay 42 is de-energized, the armature 44 is released, and contacts 52<1> close a circuit through an audible alarm 75, which then is actuated until the armature 44 is restored manually by a lever 92. The fire contacts 20 are in series with the relay 41, the armature 43 of which is self-restoring whenever the relay is energized. If an alarm contact 20 opens, the relay 41 is de-energized, the armature 43 is released, and allows contacts 52, 53 to close. Closure of contacts 52 immediately energizes a visual alarm 59. If the opening of a contact 20 is momentary only, the armature 43 is re-attracted and contacts 52, 53 re-open. If the opening is prolonged, however, contacts 52, 53 remain closed, and the latter close a circuit through the winding 77 of an electro-motor 78. The armature 80 of the latter is then driven, and at a certain speed opens the centrifugal switch 85. This acts to break the circuit through the relay 42, the armature 44 is released, and the alarm 75 is actuated continuously. At the same time, opening of the contacts 53<1> breaks the motor circuit. A bi-polar circuit-breaker 93 is provided for putting the burglar contacts 19 out of circuit if desired. Known indicating means may be employed for ascertaining which of a number of devices or contacts has functioned.
Patent GB-210550-A (GB)
Title: Improvements in connection with the heating and cooling of buildings
IPC: F24D3/14
Filed: 1922-11-10
Abstract: 210,550. Crittall, R. G., and Musgrave, J. L. Nov. 10, 1922. Joist floors.-A system for heating or cooling buildings by the circulation of a fluid through pipes from which the heat is transmitted to the rooms by radiation from the surface of the floors or ceilings, comprises pipes B embedded in a material or composition b<1> of a more or less heatconducting nature, which is located between the joists A and held in position by suitable means such as expanded metal b<2>, wire, or wire netting fixed across or between the joists. The expanded metal b<2> also serves the purpose of keying the cement b<3>, which is applied to it and to which the covering of plaster b<4> is applied. In order to give a more even distribution of the heat or cold, an insulator or spreader d' may be fixed between the joists under the floor boards D.
Patent GB-519964-A (GB)
Title: Improvements in luminescent materials
IPC: C09K11/68
Filed: 1938-10-25
Abstract: 519,964. Luminescent materials. GENERAL ELECTRIC CO., Ltd., and McKEAG, A. H. Oct. 25, 1938, No. 30814. [Class 39 (i)] A luminescent material for use in mercury vapour discharge lamps consists of an intimate mixture of a tungstate and a carbonate whose weight is not less than 0.25 per cent. of the weight of the tungstate ; the latter may be calcium, magnesium, zinc, or magnesiumcadmium tungstate. The carbonate may be of Be, Mg, Ca, Sr, Ba, Zn, Li, Pb, Th-or a mixture of carbonates. An upper limit of 20 per cent. of carbonate is suggested. A table is given indicating the effectiveness of particular combinations of tungstates and carbonates in limiting discoloration of the phosphor. The Provisional Specification states that cadmium carbonate may be used and gives some desirable proportions of particular mixtures. Specifications 441,898, [Group XX], and 511,815 are referred to.
Patent GB-732803-A (GB)
Title: Improvements in or relating to the preparation of methylol melamine solutions
Inventor: GRIMSHAW FRANCIS PETER
Filed: 1952-12-05
Abstract: Solutions of methylol melamine made by treating a stirred mixture of melamine with an aqueous solution of formaldehyde at 35-50 DEG  C. in the presence of an alkali metal hydroxide, e.g. sodium hydroxide, in a mol. ratio of 0.003 : 1 to 0.014 : 1 of the formaldehyde present (see Group IV (b)) are used for treating textiles to give resistance to creasing and shrinking.  In an example a cotton fabric is treated with a methylol melamine solution, dried, heated at 150 DEG  C. for 3 minutes and washed.ALSO:Aqueous solutions of substantially monomeric methylol melamines are made by heating a stirred mixture of finely powdered melamine with an aqueous solution of formaldehyde, the mol. ratio of formaldehyde to melamine being between 2 : 1 and 6 : 1, at a temperature range of 35-50 DEG  C., in the presence of sufficient sodium hydroxide or other alkali metal hydroxides to give a mol. ratio of alkali metal hydroxide to formaldehyde of 0.003 : 1 to 0.014 : 1.  The reaction may conveniently be initiated by adding sufficient hot water to raise the reaction mixture to the desired reaction temperature.  If desired at least part of the alkali may be added as a solution in hot water.  After reaction the pH of the solution is preferably adjusted to pH 7.0-9.0.  The mixture of melamine and formaldehyde solution is preferably allowed to stand for several hours prior to raising the temperature to initiate the reaction, the pH of the formaldehyde being adjusted to 8.0-8.5 by addition of alkali prior to the addition of the melamine. Examples are given. Specification 601,983 is referred to.
Patent GB-464700-A (GB)
Title: Improvements in or relating to television apparatus
IPC: H04N3/08
Filed: 1935-11-08
Abstract: 464,700. Television. GUIBIANSKY; J. G. Nov. 8, 1935, No. 30894. [Class 40 (iii)] In a scanning device comprising two mirror drums arranged at right-angles to one another, the lowspeed drum 20 being driven through worm gearing 17, 18 from the shaft 15 of the other drum 16, the shaft 15 is driven from a motor shaft 12 through a friction drive 21, 22. The member 21 may be a conical wheel, the driving surface of which is parallel to the shaft 15, and engages a disc 22 made of hard hide ; by adjusting the motor horizontally, the speed of transmission may be varied.
Patent GB-1150924-A (GB)
Title: Fuel Cells
IPC: H01M8/08
Filed: 1966-07-11
Abstract: 1,150,924. Fuel cells. SIEMENS-SCHUCKERTWERKE A.G. 11 July, 1966 [15 July, 1965; 26 Nov., 1965; 10 Dec., 1965], No. 31087/66. Heading H1B. Fuel cells or batteries comprise porous electrodes separated by and in intimate contact with porous, electrically non- conductive diaphragms filled with liquid electrolyte during use, the average radius of the pores in those sections of the diaphragms adjacent the electrodes being smaller than the average radius of the pores in the electrode surfaces, a fuel reactant circuit for introducing a fuel reactant at the edges of an electrode of the or each cell, and an electrolyte conveying device connected to the cell or battery and arranged to convey liquid electrolyte under pressure successively through the pores of the electrodes and diaphragms. Electrolyte may enter or leave the cell or battery through the end faces of the terminal electrodes, or through the edges of electrodes or diaphragms together with or in separate zones from a reactant and the batteries may be divided into one or more zones for the circulation of electrolyte. As shown in Fig. 3 electrolyte from the water extractor 10 is fed with a gas stream to electrode 20 and returned to the water extractor from the end chambers 6, and the battery is thus divided into 2 zones. In series connected batteries it is preferred that the electrolyte flow between adjacent cells is through a long channel so that the resistance of the electrolyte in the channel exceeds the internal resistance of a cell. As shown in Fig. 6, the end diaphragms 40, 41 of adjacent cells are separated by a collecting disc 42 which leads electrolyte from diaphragm 40 via the central aperture in disc 43 to the spiral capillary channel in labyrinth disc 44 from which it is passed by the hole in the apertured or annular diaphragm 45 into collecting disc 46 which distributes it uniformly to diaphragm 41. If the adjoining electrodes are of the same polarity the separating discs may be made of synthetic resins and if they are of different polarity the discs may be made of metal.
Patent GB-539225-A (GB)
Title: Improvements in or relating to gyroscopic apparatus
IPC: G01C19/00
Filed: 1939-12-30
Abstract: 539,225. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. Nov. 30, 1939, No. 31142. Convention date, Dec. 17, 1938. [Class 97 (iii)] A follow-up member for the sensitive element of a gyroscopic instrument such as a gyromagnetic compass is driven in either direction, through a coupling controlled by a pneumatic pick-off, by a continuously running motor, e.g. an air turbine. The invention is described as applied to a gyro-magnetic compass in accordance with Specifications 466,864 and 536,220 comprising a controlling magnetic element 7 and a rotor 4 in a casing 5 supported by spherical air bearings 6 in a vertical ring 1 carried in spherical air bearings 2, 2<SP>1</SP> within the instrument casing ; a compass card 63 is secured to the ring 1. The upper bearing housing 3<SP>1</SP>, a member 10 carrying slotted ports 11, 11<SP>1</SP>, and a conical stem 8, are rotatably mounted to form a follow-up member for the ring 1. Air pressure induced by exhausting air from the instrument casing through a pipe 14 provides all motive power. Air is thus drawn through ports 26 in a casing 61, Fig. 3, open to the atmosphere, and by way of pipes 20, 21, annular channels 16, 17, and passages 15, 15<SP>1</SP> to emerge from the ports 11, 11<SP>1</SP>. A semi-circular plate 13 carried by the ring 1 has its ends normally beneath the ports 11, 11<SP>1</SP> ; relative movement of the ring and ports obstructs one of the ports and causes movement of flexible diaphragms 25, 25<SP>1</SP> in the casing 61. A plate 24, suspended by an arm 27 from a member 28 mounted on pivots 29, 29<SP>1</SP>, is thereby moved to rock the member 28. The member 28 carries an air turbine wheel 31 driven by a jet 32 and driving, through gears 35, 36, a friction roller 38 located between friction discs 39, 39<SP>1</SP>, Fig. 5. Rocking of the member 28 causes the roller 38 to engage one of the discs, thus rotating a screw thread 41 on the disc 39 driving the follower through a gear 42 secured to the member 10. A brake is provided to prevent over-running of the follower and comprises a shoe 43 on a spring 44. Power is normally applied to the shoe by an expansible capsule 45 to which air may be admitted from an external screened opening 50 through ports 49, 48 and a pipe 46. A valve 54 on a pivoted arm 53 is operatively connected by a pin 56 and slot 55<SP>1</SP> in an arm 55 to the member 28. This valve opens the air connection, to apply the brake, when the member 28 is in its middle position, and closes it to allow the spring 44 to free the brake, while the member 28 is rocked from its middle position. The follower may be connected by a shaft 57 to a synchronous motor 58 controlling repeater cards 59, 60.
Patent GB-1432353-A (GB)
Title: Fluid filters
IPC: B01D46/04
Filed: 1972-07-04
Abstract: 1432353 Filter apparatus BIVAC AIR CO LTD 2 Oct 1973 [4 July 1972] 31217/73 Heading BIT  A filter apparatus for removing solid particles from a fluid, e.g. air or liquid, comprises a casing 10 having an inlet for particle-laden fluid, an outlet 12 for filtered fluid, one or more filter bags or sleeves 14 having closed lower ends and open upper ends mounted within the housing for inward flow of fluid therethrough, the lower ends of the filter bag or tubes being loaded by a weight 17 or spring 16, a valve-closed pressurised air delivery pipe 19 directed towards the open end of the filter bag or sleeve and an adjustable valve-operating means 22 associated with one bag or sleeve end arranged to open the valve for a duration of time upon a predetermined shortening movement of the bag or sleeve resulting from differential pressure created by particle build-up thereon so effect reverse flow cleaning of the bags or sleeves. The valve operating means may comprise a central rod (23, Fig. 4 not shown) mounted within the bag or sleeve arranged to open a valve 22 mounted above the bag upon shortening of the bag. Means may be provided to clean the bags sequentially upon circulation.
Patent GB-533986-A (GB)
Title: Improvements in or relating to glass mirrors
IPC: C03C17/36
Filed: 1939-12-01
Abstract: 533,986. Mirrors. NACMIAS, D. B., and JORIS GLASS INDUSTRIES, Ltd. Dec. 1, 1939, No. 31266. [Class 52 (iv)] The silvering of a mirror is protected by a synthetic acid-free vitreous enamel of known kind which has a setting temperature not higher than 150‹ F and a storing temperature of from 200‹ F. to 240‹ F. to produce a hard permanent protection layer.
Patent GB-1283582-A (GB)
Title: A measuring and plotting device
IPC: G01B3/10
Filed: 1969-06-20
Abstract: 1283582 Measuring and plotting devices COLLON CO Ltd and P R WOTTON 8 May 1970 [20 June 1969] 31284/69 Headings G1M and G1X A measuring and plotting device comprises a base 1 provided with a scale 2 indicating angular deviation of an arm 3 which is pivotally supported on the base 1, and with an extensible tape measure supported by the arm 3 and arranged such that the free end 7 of the tape 6 is extensible longitudinally of the arm and parallel to the plane of the base. The extensible tape measure is provided on one face of the tape 6 with a longitudinal line 12 and on the opposite face with length graduations 10 which are viewable through a window 13 in a casing 5, the tape 6 being retractable into the casing by a coiled spring 9 when a manually operable ratchet device 11 is released. A sighting aperture 4a is provided in the base 1 and the arm 3 at the pivot point thereof for alignment with a reference mark on a surface which supports the device. The tape measure can then be extended by a selected amount and at a selected angle relative to the base scale 2 and the free end of the tape 6 is so provided with a disc 7 having an aperture 8 that a point can be marked either by a pencil or a pin 15 at such location determined by the selected angle and selected length.
Patent GB-520713-A (GB)
Title: Improvements in and relating to refrigerating machines
IPC: F25B1/00
Filed: 1938-10-29
Abstract: 520,713. Cooling motors. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 29, 1938, No. 31330. Convention date, Oct. 29, 1937. [Class 35] [Also in Group XIII] Oil cooled by water coils 66 in the sump of a refrigerating machine having a centrifugal compressor 44 driven by toothed gearing 48, 49 from a motor 35 is raised by a rotary pump 54 on the end of the motor shaft through passages 59, 61 to bearings for the motor and compressor shafts, and drains back into a well 62 and overflows into passages 64 through the motor stator.
Patent GB-533988-A (GB)
Title: Process and apparatus for the production of coke
IPC: C10B7/06
Filed: 1939-12-05
Abstract: 533,988. Coking process and apparatus. SHAWINIGAN CHEMICALS, Ltd. Dec. 5, 1939, No. 31470. Convention date, Dec. 5, 1938. [Class 55 (i)] A shallow bed of coal is conveyed through a carbonizing zone in an oven which is first heated by combustion of the coal, and, when it has reached a suitable temperature, the charge is coked by selective combustion of a portion of the volatiles given off, the combustion of the charge itself being reduced to a minimum. Coal from a hopper 17 is fed under an adjustable gate 14 to an endless chain grate 12 on which it is conveyed through an oven A having a ceiling 8 to 18 inches above the grate. Air is admitted through ducts 22 and inlets 20 to zones 21, 21a, 21b below the grate and for heating the oven, the fuel is burned to ash. At between 800‹ and 1400‹C. the grate is speeded up, and the air supply adjusted to burn a portion of the volatiles so as to provide heat for driving off the remainder. The gases evolved pass to an outlet 11, and the coke to a hopper 18.
Patent GB-446432-A (GB)
Title: Improvements in the separation of synchronising signals in television receivers
IPC: H04N5/08
Filed: 1934-11-02
Abstract: 446,432. Television. WILLANS, P. W., and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. Nov. 2, 1934, No. 31553. [Class 40 (iii)] Synchronizing signals are separatedfrom picture signals by an amplitude filter comprising a thermionic valve 1 with an anode 7 receiving electrons directly from the cathode. The incoming high-frequency signals are detected by an auxiliary anode 2, and the detected signals are applied to the controlling grid of the double-diode-triode 1. During the picture signals the mean current to the main anode of the valve, in passing through a resistance 6, makes the potential of the anode 7 zero or slightly negative relatively to the cathode, and no space current flows to it. During the synchronizing signals, which are produced as described in Specification 436,108, the current to the main anode falls, and space current passes to the anode 7, and is used to control a time-base circuit through a transformer 8. According to modifications; the resistance 4 is replaced by a battery giving such a bias that the valve acts as an anodebend detector, Fig. 2 (not shown); the valve is biassed by a resistance carrying the main anode current, Fig. 3 (not shown); if the modulated carrier varies in strength or the level of the synchronizing signals varies, the anode 7 is connected to the positive potential through an impedance and a resistance, and the junction of the impedance and resistance is connected to earth through a condenser, Fig. 4 (not shown).
Patent GB-448179-A (GB)
Title: Improvements in or relating to cutter chains for mining machines
IPC: E21C25/36
Filed: 1935-10-23
Abstract: 448,179. Cutter chains for mining. MINING ENGINEERING CO., Ltd., Meco Works, Worcester, and MOORE, M. S., Ivanhoe, Worcester Road, Malvern, Worcestershire. Oct. 23,1935, No. 31709. [Class 68 (i)] [See also Group XXV] In a mining machine cutter-chain, the side links 3 are pivoted on pins 2 projecting laterally from the pick boxes 1 and have inward extensions 4 adapted to bridge the gap between the links to keep out cuttings from the chain guide and also to engage the ends of the pick boxes to give a stiff-back chain. The extensions 4 may be connected together as by rivets or welding. The ends 6 of the extensions may be bevelled &c. to engage corresponding surfaces on the pick boxes to prevent sidewise rocking. The links 3 may have sharp corners 8, and the boxes 1 may have projections 9, to scrape the bottom and sides of the chain guide.
Patent GB-162026-A (GB)
Title: Improvements in the treatment of argentiferous lead-zinc sulphide ores
IPC: C22B1/08
Filed: 1919-12-18
Abstract: Argentiferous lead-zinc sulphide ores are roasted with a halogen salt such as sodium, potassium, calcium, or magnesium chloride in an oxidizing atmosphere at a temperature above 400 DEG  C. but not high enough to volatilize lead chloride, the zinc sulphide remaining for the most part unattacked.  To prevent any appreciable attack on the zinc the temperature should not exceed 500 DEG  C.  The air employed in the roasting is preferably moistened if dry.  The product of the roasting is leached with hot brine to extract lead, some silver, and any zinc chloride.  The lead and silver are recovered in known manner for instance by cooling the solution and treating the deposited chlorides as described in Specification 129,773 to separate the silver as argentiferous lead sulphate, the brine being used repeatedly.  The residual ore is treated with a solvent for silver such as a solution containing 35 per cent calcium chloride and 3-5 per cent cupric chloride or 3 per cent hydrochloric acid as described in Specification 151,698, or, if there is an appreciable quantity of lead, the ore is first treated with hot brine containing hydrochloric or sulphuric acid as described in Specification 127,641 to extract the lead and part of the remaining silver, and then as above described to extract the remaining silver.  The used brine containing sodium sulphate and the lead salts obtained may be treated as described in Specification 129,773 to de-sulphate the brine and obtain lead sulphate.  In a modification if there is some unoxidized lead sulphide remaining after the roasting or after the leaching with brine, the ore is leached with hot strong solution of calcium or magnesium chloride containing enough hydrochloric acid to convert the lead sulphide into chloride. This effects a good extraction of the silver and renders a subsequent extraction unnecessary.  It is preferred to have a small quantity of zinc chloride present in the calcination, which may be derived from the ore if it contains some easily attackable zinc, or may be added at the beginning or towards the end of the calcination, preferably as a mixture of sodium and zinc chlorides obtained by evaporating some of the brine used for leaching. Specifications 131,253, 135,968, and 141,044 are also referred to.
Patent GB-746078-A (GB)
Title: Apparatus for feeding annular blanks to a rolling machine
IPC: B21D53/30
Filed: 1953-11-17
Abstract: 746,078. Corrugating. KELSEY-HAYES WHEEL CO. Nov. 17, 1953 [April 30, 1953], No. 31896/53. Class 83 (4). Apparatus for feeding annular blanks to a working, e.g. rimrolling, position comprises a carriage reciprocable on a support to and from such position, the carriage having upright side members between which a blank is supported by a member retractably mounted in one of the side members and means for controlling the transverse movement of the supporting member so that it supports a blank during movement of the carriage to the working position but is retracted to allow the blank to be discharged from the carriage during movement of the carriage away from the working position. A carriage 14 reciprocated along guide rods 6 by an air cylinder 25 carries an abutment 34 which, as the carriage finishes its movement away from rim-rolling means 8, 10, swings a pivoted lever 29 out of the way of a partially formed annular rim blank in a shoot to allow the blank to fall on to the carriage 14 where it is supported between 'carriage uprights 18, 19 by a shaped horizontal plunger 20 retractably mounted in the upright 19. As the blank passes from the shoot 28 between the uprights 18, 19 'it swings a lever 37 to actuate a limit switch 36 to cause the air cylinder 25 to move the carriage 14 towards the rim-rolling means. During this movement the plunger 20 is held forward supporting the blank by a roller 52 in its outer end running over the upper face 56 of a side guide 54, the upper faces 62, 63 of a pivoted V-member 59, and the upper face 57 of a side guide 55. As the carriage approaches the rim rollers 8, 10 a pivoted lever thereon actuates a switch 67 to cause the lower roll 10 to rise to carry the blank to the upper roll 8 and then to descend to deposit the formed rim on the carriage and to operate a switch 68a to cause the cylinder 25 to return the carriage. During such return the roller 52 runs over the face 57 and then under the V-member 59 to cause the plunger 20 to retract and allow the rim to drop into a discharge shoot 66, the plunger 20 being then moved forward by the'face 56.