baber/WOPTO huggingface dataset:
Patent GB-1397796-A (GB)
Title: Intruder alarm systems
IPC: G08B1/08
Filed: 1972-05-15
Abstract: 1397796 Photo-electric burglar alarms A L LITMAN 15 May 1972 22670/72 Heading G1A [Also in Division G4]  A burglar alarm comprises a plurality of sources (e.g. flash-bulbs 15A, 15B) of visible or non-visible light each operated in response to an intrusion to generate a pulse and at least one detector capable of responding to said pulse but being substantially unresponsive to continuous lighting or pulsed lighting of lower level. As described, each source comprises a cube of four flash-bulbs 15A, 15B triggered in pairs by means of pyrotechnic initiators operated by firing pins 17A, 17B in response to the impact of a lever 18 powered by a spring 19 when a trigger 20 is released when tension is applied to a chain 11 due to opening of a window or actuation of a treadle. The flash-bulbs 15A, 15B may be in optical communication with a single central station or may irradiate a plurality of receivers each operating further flash-bulbs so as to provide a light-relay system. Fig.4 shows such a receiver in which the ambient light on a photo-cell 25 is insufficient to trigger a thyristor 28, but when a flash-bulb 15A, 15B is fired as the result of an intrusion, the resulting electrical pulse will pass capacitor 26, trigger thyristor 28 and operate an alarm 32 or a further flash-bulb 33. In Fig.5 (not shown) a photo transistor is employed which turns on two further transistors so as to feed a circuit similar to that shown in Fig.4. The system may operate with infrared by use of optical filters.
Patent GB-267812-A (GB)
Title: Pocket-kinematograph
IPC: G03B21/32
Filed: 1926-09-14
Abstract: 267,812. Hauser, P., and Probst, E. April 24, 1926, [Convention date]. Addition to 259,935. Kinematograph apparatus. - In apparatus according to the parent Specification, the gate comprises a hinged plate which is slightly curved in proximity to a feed sprocket and has raised longitudinal edges against which a second plate is resiliently pressed. As shown, the apparatus comprises parallel plates 1, 2, 3, the plate 2 being bent so as to form a tube 11. The spindle 5 of a feed spool 6 is journaled in the plates 1, 3 above the tube 11, and a sprocket 49, having teeth 50, and secured to a maltese cross 38 having eight slots, is mounted below, and close to, the tube 11, and between the plates 2, 3. The maltese cross is driven by a pin wheel 40 on a spindle 41 carrying a flywheel 42 and is operated by a hand crank 8 through gearing 23, 25. The gate comprises a plate 52 mounted on a pivot 53 and curved near the sprocket 49, and also a second plate 56 pressed against the raised edges of the plate 52 by a spring 57. A tappet 61 may be turned by hand about a pivot 60 to move the gate so that the sprocket becomes disengaged from the film when the film is to be rewound on to the spool 6. The apparatus is enclosed in a box 69 slidable into a casing 27 containing a takeup roller 71 driven by pulleys 73, 74 and a belt 75. The casing 27 may be replaced by a bracket mounted on the plates 1, 2 and carrying a takeup roller. The tube 11 contains a lens 66, and, when an image is to be projected on to a screen, a lamp 65, and a projection lens, may be provided. When the images are to be directly viewed, a microscope is placed in tho tube 11 in place of the lamp 65, the microscope being provided with a funnel-shaped eye piece. The apparatus may be provided with a rotating shutter.
Patent GB-842575-A (GB)
Title: Ducting for ventilation systems in mines and other underground workings
Inventor: FARMER BEN ALAN
IPC: E21F1/04
Filed: 1957-07-18
Abstract: 842,575. Telescopic pipes ; pipe joints. FARMER BROS. (SKIFNAL) Ltd. July 8, 1958 [July 18, 1957], No. 22732/57. Classes 99(1) and 99(2). Ducting, e.g. for ventilation systems, comprises two or more telescopically connected pipes 10, 11, Fig. 4, with coupling flanges 12, 13, and stop means 14, 15, Fig. 6, for limiting the telescopic extension and preventing complete disengagement. The joint between the pipes 10, 11 is sealed by a bridging sleeve 16, e.g. of rubber, clamped by metal straps 17 having quick release catches such as the toggle link fastening 18, Fig. 7. The assembly may have a hook fitting 19 for lifting the assembly in the fully nested condition.
Patent GB-1070565-A (GB)
Title: Improvements in or relating to egg trays
IPC: B65D85/32
Filed: 1964-06-02
Abstract: 1,070,565. Egg trays. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 2, 1964 [June 5, 1963], No. 22760/64. Heading B8P. An egg tray made from thermoplastic sheet material, 0À6 to 1À5 mm. thick, has frustoconical/-pyramidal protuberances and depressions (10, 11) formed along two series of ribs (12, 13) running at right angles to each other so that one tray may be stacked on another with the depressions of the uppermost tray co-operating with the protuberances of the lower tray to prevent lateral displacement, there being local ribs (24, 26) formed longitudinally along the walls of adjacent protrusions and depressions. The protuberances (10) and depressions (11) have top and bottom walls (14, 15) respectively with recessed and projected profiles (16, 17) for co-operation when trays are filled with eggs and stacked on each other with alternate trays turned through 90 degrees in their own plane. The ribs (12, 13) serve to support a tray when it is picked up by its edges, while the local ribs (24, 26) reinforce the protuberances and depressions and space the eggs from each other. Each tray is formed with a rim (30) around its periphery and with handles (18) on two opposite edges. Stacked trays of eggs are held together by one or more cords, wires or straps and are transported without further packaging. Empty trays are nested with the protuberances and depressions of one tray in line with those of the next.
Patent GB-1438281-A (GB)
Title: Mastitis detector
IPC: G01N33/04
Filed: 1972-05-16
Abstract: 1438281 Milk conductivity measuring apparatus CHALTON ELECTRONIC SERVICES Ltd 16 Aug 1973 [16 May 1972] 22791/72. Heading G1N In a milk conductivity indicator for detecting mastitis a trigger circuit responsive to the attenuation of a current passed through a conductivity cell is inhibited by a delay circuit for a predetermined initial period commencing with the commencement of milking. Pulses from a multivibrator including amplifier Al are applied to one electrode of a conductivity cell 25, Fig. 2 (not shown) the second electrode of which is connected via rectifier D1 and a smoothing circuit to charge capacitor C4. The voltage across capacitor C4 is applied to the inverting input of Schmitt trigger A2 which is triggered when the voltage across capacitor C4 exceeds a level set by potentiometer R10 i.e. if the conductivity of the milk. in cell 25 exceeds a predetermined level indicating the onset of mastitis. In accordance with the invention a delay circuit is provided including a timer 28 to prevent operation of the trigger circuit. Pulses passed through cell 25 are applied via transistor TR2 to set delay circuit 28 so that charge is prevented from building up on capacitor C4. After capacitor 11 has charged via resistor 22 to a level to release the delay circuit 28 the attenuated pulses from cell 25 charge capacitor C4. If the voltage exceeds the reference voltage the Schmitt trigger is fired and due to feedback capacitor C5 operates as a monostable multi-vibrator the frequency of whose output is an indication of how much the capacitor voltage exceeds the reference The output pulses light a light emitting diode LD of the respective apparatus which are also fed to transistor TR1 whereby bell 26 is activated. Cell construction Fig. 2. The cell 2 is generally spherical of polycarbonate material and is provided with diametrically opposed inlet and outlet ports 4, 8 connected to the milking machine cluster and measuring jar, respectively. One of the ports has a tubular extension 16 into the interior of the cell to form an annular well 12 into which graphite electrodes 10 extend through the cell wall. Drain duct 6 is provided.
Patent GB-933892-A (GB)
Title: Improvements in spring units used in seats for furniture, cars and the like
Inventor: INGRAM WILLIAM ANTHONY
IPC: A47C7/26
Filed: 1961-06-23
Abstract: 933,892. Spring upholstery. NO-SAG SPRING CO. (GREAT BRITAIN) Ltd. June 8, 1962 [June 23, 1961], No. 22821/61. Class 52 (4). A spring unit for seats and seat-backs comprises an assembly of substantially flat springs 4 embedded in an elastic body 1, e.g. of foamed plastics, rubber or other like synthetic material, the springs 4 being disposed in spaced, parallel relation and each having at one or both ends 6 a V-conformation. The springs 4 are introduced during the moulding of the body 1 which may include rim portions 8 having embedded therein one or both V-ends 6. A wire 7 may connect opposed ends 6. Non-sinuous wires may extend at right angles to the springs 4 to criss-cross therewith.
Patent GB-719627-A (GB)
Title: Improvements relating to desulphurisation catalysts
IPC: C10G29/06
Filed: 1951-10-01
Abstract: A catalyst for use in the desulphurization of hydrocarbons consists of a mixture of the oxides of cobalt and molybdenum, or a chemical compound of cobalt, molybdenum and oxygen or a mixture of one or both of said oxides with said compound, dispersed on a support consisting essentially of alumina, the catalyst containing fluorine in an amount from about 0.1-6 per cent. by weight.  A support of activated alumina or bauxite may be impregnated with an aqueous solution containing all three catalytic elements, or with separate solutions containing the elements in any order.  The support may be dried and roasted (e.g. at 550 DEG C.) after each impregnation.  Alternatively solid components of the catalyst may be mixed together.  Substances used in the preparation of the catalysts are cobalt nitrate, ammonium molybdate, cobalt fluoride, aluminium fluoride, molybdenum, trioxide, cobalt oxide, hydrogen fluoride, and ammonium fluoride.  The catalysts may be reduced in hydrogen or hydrogen sulphide, and are used for the refining of hydrocarbons containing sulphur compounds at 600 DEG -900 DEG F. in the presence of added hydrogen for example as described in Specifications 654,152, 663,038, 669,536, 669,552, 669,553, 697,222, 697,226, and 697,724.  Examples describe the preparation of catalysts using alumina gel as the carrier, and processes for the treatment of gas oil in which the gaseous reaction products are recycled.
Patent GB-647157-A (GB)
Title: Apparatus for the electric arc welding of pipes and like articles
IPC: H01R4/64
Filed: 1947-08-18
Abstract: 647,157. Collectors. ANGLO-IRANIAN OIL CO., Ltd., and BEAUMONT, F. N. Aug. 18, 1947, No. 22880. [Class 38 (i)] [Also in Group XXII] In an apparatus for electric arc welding pipes and the like, the earthing lead is secured to a block rotatably mounted on a shaft secured to the pipe and maintained in positive electric contact with the shaft so as to permit rotation of the pipe during circumferential welding without entanglement of the said lead. The gun-metal shaft 2, which is provided with a clamp 1 for securing to the pipe and is provided at one end with a flange 3 and at the other end with a screwed collar 8, has mounted thereon a rectangular block 5 provided with circular cavities 6, 7 to form seatings for the flange and collar 8. The bottoms of the cavities receive copper-carbon contact rings 14, 15 which are maintained in contact with the shaft and block by a coil spring 16, and sealing rings of felt 12, 13 are contained in channels 10, 11 in the block for excluding foreign matter from the contact rings. The ring 15 is electrically connected by flexible leads 17 to the collar 8, and the earth lead 19 is secured by a union to the block 5. In a modification the rings 14, 15 are replaced by two spring-loaded carbon brushes bearing on the shaft from diametrically opposite directions.
Patent GB-424277-A (GB)
Title: Improvements in and relating to systems of electric motor control
IPC: B66B1/08
Filed: 1933-08-17
Abstract: 424,277. Master control of motors. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and JEFFERSON, H. F., Hillside, Bilton Road, Rugby. Aug. 17, 1933, No. 23004. [Class 38 (iii)] The brush - gear of an A.C. commutator motor is operated by a pilot motor controlled by limit switches and stops F, D, E, corresponding to the highest and lowest speeds, and an auxiliary limit switch B, operated by a member G moved into the path of a projection D on a moving portion C of the brush shifting mechanism, is provided whereby the movement of the brushes may be limited to a position lower than the normal top speed position when desired. In a modified arrangement an auxiliary stop on the part C operates on the member actuating the auxiliary limit switch.
Patent GB-814017-A (GB)
Title: Improvements in and relating to means for controlling the supply of feed water to steam generators
Inventor: GUEST ARTHUR KINGSLEY
IPC: F22D5/14
Filed: 1956-07-25
Abstract: 814,017. Feedwater regulators for steam boilers. COPES REGULATORS Ltd. June 25, 1957 [July 25, 1956], No. 23008/56. Class 123(2) A feedwater regulator comprises an inclined thermostat tube 2 disposed at or about the desired water level in a boiler 1 with its upper and lower ends respectively connected to the steam and water spaces of the boiler by pipes 7, 4. The lower end 3 of the tube 2 is anchored to a suitable support whilst its upper, displaceable end is connected to a bell-crank lever the longer arm 17 of which is connected by a link 18 to one end of a floating lever 19, the latter actuating the feed regulating valve 26 through a link 24 connected at a point between its ends. Any change in boiler level alters the level in the tube 2 and hence its average temperature, the resulting expansion or contraction of the tube causing the valve 26 to be opened or closed to restore the level to normal. If the boiler is operated at a different pressure and hence a different steam temperature, the alteration in working level which would otherwise occur due to the movement of the tube 2 is corrected' by the provision of a second indined thermostat tube 10, the upper and lower ends of which are respectively connected to the top of the steam space by a pipe 12 and at a level 16 of the steam space by a U-tube 14, 15. The level 16, which is above the boiler water level, determines the level to which condensate collects in the tube 10 and, since this level remains constant, expansion or contraction movements of the upper end of the tube, the lower end 11 of which is anchored, are due solely to alterations in saturation temperature as the operating pressure varies and will equal the movements of the tube 2 due to this cause since tubes 10 and 2 are of the same size. The movements of the tube 10 are transmitted to the other end of the lever 19 in the opposite direction to those of the tube 2 through a bell-crank lever 20, chain 21 and link 23. Thus the movements of the tube 2 due to change in operating pressure do not alter the setting of the regulator valve. Other compensating devices may also be applied to the feed valve, for example as described in Specification 756,997.
Patent GB-197596-A (GB)
Title: Improvements in or relating to the manufacture of fabric tubing
IPC: D06B3/10
Filed: 1922-08-24
Abstract: 197,596. British Thomson - Houston Co., Ltd., (General Electric Co.). Aug. 24, 1922. Fibrous pipes and tubes.-Flattened woven or braided fabric tubing is drawn through a heated die under a regulated tension to impart to it the form desired for the finished tube, in which condition it is impregnated with a compound to giveit rigidity. The flattened tubing 10 to be treated is wound on a pivoted frame 11 and is drawn, by means of a device (not shown) driving the belt 14, under a tension regulated by the plates 16, 17 and thumb-screw 18, through the electrically heated support 12' for the die. The die 20, Fig. 3, is detachably held in the support 12 so that dieshaving apertures of various sizes and forms may be used. A detached ball 30, held against therecessed front of the die and of larger perimeter than the die, may be used to smooth out any irregularities in the fabric, a cup 32 being secured to the device 12, to catch the ball when the end of the tubing 10 has passed over it. The tube isironed inside and out in its passage through the heated die 20, and the fibres are set and held in the form desired. The ironed tubing is wound under a tension sufficient to maintain its form on a rotating frame 13, which is removably pivoted in bearings rotated by the driving device. The distance between the ends of the frame is adjusted to that desired for the lengths of tubing, so that after the frame has been dipped in the stiffening compound the flattened portions where the tubing passes over the frame are cut out. Specification 27951/96 is referred to.
Patent GB-986136-A (GB)
Title: Improvements in lamp caps and lamp holders
IPC: H01R33/06
Filed: 1961-06-26
Abstract: 986,136. Lamp caps and holders. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. June 26, 1961 [June 24, 1960], No. 23057/61. Heading H2E. A fluorescent lamp cap and holder are of translucent or transparent insulating material, the current-carrying members being of translucent or transparent insulating material rendered electrically conductive. The lampholder body 1 (Fig. 1) and baseplate 2 and rotatably plug 3 also the lamp cap 12 (Fig. 2) are translucent synthetic plastic while the contact pins 10, 11, the springs 4, screws 5 and associated clamps are of tough, resilient, translucent, conductive plastics. The conductive parts may be of epoxy resin or other synthetic plastic coated with tin oxide rendered conductive by treating with ammonium fluoride or alternatively a powdered conductive material may be mixed with the synthetic plastic, the refractive indices of the materials being closely matched so that the conductive parts may be uniformly translucent or transparent.
Patent GB-836067-A (GB)
Title: Carburettors
Inventor: SMITH CYRIL REVILLE BELLAMY
IPC: F02M17/04
Filed: 1957-07-22
Abstract: 836,067. Carburetters. AMAL Ltd. July 18, 1958 [July 22, 1957], No. 23092/57. Class 7(3) The invention relates to carburetters of the type having a piston type throttle valve 4 controlling the air admission and a tapered needle valve 7 which is movable with the piston type throttle valve and which co-operates with a needle jet nozzle to control the amount of fuel entering the mixing chamber. According to the invention a carburetter of the above type has a fuel control chamber, a control diaphragm 18 separating the chamber into two parts, one of which parts communicates with the atmosphere and the other of which parts 30 is connected to a fuel inlet passage and also to a fuel outlet passage 12 communicating with the needle jet chamber, and a valve 39 in the fuel inlet passage, opening and closing of the valve being under control of the control diaphragm, and the valve being adjustably biased so as positively to close the fuel inlet passage when the pressure on each side of the diaphragm is the same and to determine the instant at which it opens due to a difference of pressure in the two parts. As shown a diaphragm operated pump is employed a chamber 43 formed between the body member 13 and the pumping diaphragm 17 is connected by passages 44, 45 and 46 to the crankcase of the engine. In a modification fuel may be supplied to the fuel control chamber by means of a gravity feed supply. The carburetter is particularly for motor cycles or small power equipments such as saws.
Patent GB-1352776-A (GB)
Title: Fastener driving apparatus
IPC: B25C1/00
Filed: 1971-04-19
Abstract: 1352776 Fastener driving device EATON CORP 19 April 1971 [30 Sept 1970] 23099/71 Heading B4C A pressure fluid operated device for driving clips F comprises an assembly 2 for receiving a cartridge 22 provided with a piston 110 therein, which piston is urged towards guide channel 153 (Fig. 9) by pressure fluid, e.g. compressed air, supplied from reservoir 16 via passages in the assembly 2 and an aperture 106 in closure 104 of the cartridge. The assembly 2 comprises a support structure 52 and a member 72 secured to a spindle 62 slidably received in a bush 60 screwed into a bore 54. The bush includes a slot 61 through which fluid can pass from the bore 54 via bores 68 and 70 to the aperture 106. The closure 72 includes a handle 83 and a resilient pad 88 which is urged against the end of the cartridge by action of spring 84. Rotation of the spindle 62 when in the illustrated position is prevented by dowel pin 66 engaging a flat 64. To reload the device the member 72 is initially moved axially thus breaking communication between slot 61 and bore 68, and is then rotated to expose the rear end of the cartridge which can then be removed. A fresh cartridge is then inserted and the device is returned to the illustrated condition. Actuation of the trigger 48 effects driving of the clip positioned in the guide channel 153. Pressure fluid in return chamber 29 acts via ports (not shown) in cylinder 28 on the under surface of piston 36 to return the piston from its driven position to its driving position. The nose portion 24 includes grooves 164 for receiving a workpiece to which the clips are to be applied. A further groove 166 is provided to enable a securing bolt or screw to be inserted through an aperture in one leg of a clip and the workpiece and into screw threaded engagement with an aperture in the other leg. A spring serves to hold the leading clips in the correct position in the guide channel, and one portion of the spring is displaced as illustrated in Figs. 8 and 9, upon a clip being driven. A pin 138 prevents an inverted clip entering the guide channel.