baber/WOPTO huggingface dataset:
Patent GB-1514501-A (GB)
Title: Ionization-type fire detector
IPC: G01N27/66
Filed: 1975-05-09
Abstract: 1514501 Ionization-type smoke sensors GENERAL SIGNAL CORP 9 May 1975 [10 May 1974] 19708/75 Heading G1N [Also in Divisions H1 and H2] Fire detector circuitry includes MOSFET 109 for detecting voltage changes at the junction between closed ionization chamber 103 and aerosol detecting chamber 104, while programmable uni-junction transistor 124 provides level input detection and on conduction capacitor 126 discharges through resistors 128 and 130 to activate lamps 98a, b. Lamp 169 may be provided at a remote station, and Zener diode 158 provides alarm current should lamp 98a and/or lamp 98b fail. Diode 167 provides a current path to the lamps should the wiring polarity be reversed and alerts the installer. Also included is a 5pf shield conductor to slow the response so as to counter false alarms, thermal cutoff 120 acting not for fire detecting but to indicate the unit has been exposed to high temperatures and may need checking, capacitor 122 preventing false alarms due to electrical transients and resistors 134, 136, 138, 140 and pot. 142 providing a reference signal for the gate of transistor 124 adjustable by switch 144.
Patent GB-451412-A (GB)
Title: Improvements relating to lubricants and to lubrication
IPC: C10M137/10
Filed: 1934-12-29
Abstract: Lubricating-compositions, especially for use under high pressures, consist of a major amount of a lubricating oil and a minor amount of a halogenated heterocyclic compound containing a nitrogen or sulphur atom.  Compounds preferably contain at least 55 per cent of halogen and have a boiling point above 170 DEG  C. Compounds specified are chlorinated pyridine, quinoline, pyrrole, thiophene or derivatives thereof.  Examples: mineral lubricating-oil is mixed with 0,1 to 2 per cent or more of halogenated quinoline stearate or oleate.  The lubricant may be admixed with motor fuel and used as an upper cylinder lubricant. The solution or dispersion of the compounds may be assisted by solvents such as benzene, chlorbenzene, amyl alcohol, acetone, naphtha, carbon tetrachloride, tetrachlorethylene, aniline or tricresyl phosphate.
Patent GB-345902-A (GB)
Title: Process for working up beryllium minerals
IPC: C01F3/00
Filed: 1930-06-28
Abstract: Beryllium-containing minerals are treated at above 100 DEG  C., say at 600 DEG  C., with gaseous hydrofluoric acid.  In one example, beryl is treated in an iron or nickel tube at 600 DEG  C. until silicon fluoride is no longer evolved.  The cooled mass is extracted with water, ferric oxide and aluminium fluoride remaining undissolved, and beryllium hydroxide is precipitated by ammonia.  The fluorine may be recovered from the mother liquors. In another example, beryl is treated in an aluminium-lined rotary furnace with a mixture of silicon fluoride and hydrogen fluoride. A statement of prior art relates to the production of sodium beryllium fluoride and sodium aluminium fluoride by heating beryl with sodium silicofluoride at 650-700 DEG  C.  Treatment of beryl with aqueous hydrofluoride is also referred to.
Patent GB-1497707-A (GB)
Title: Anti-skid hydraulic braking systems for vehicles
IPC: B60T8/32
Filed: 1975-05-10
Abstract: 1497707 Anti-skid braking; boosters GIRLING Ltd 28 April 1976 [10 May 1975] 19742/75 Heading F2F  In a wheel speed and deceleration responsive hydraulic braking system, for a motor cycle, with a wheel driven pump 23 (Fig. 2) suppling an increasing volume with wheel speed through a pressure reducing valve 28 (Fig. 3), a boost chamber 11 and passages 10, 27 in a master cylinder piston 7 to a receiver 3, the valve 28 dumps the fluid through an outlet 35 upon a predetermined wheel deceleration, is in parallel with a variable leakage by-pass valve 30 (Fig. 3) the flow through which increases with pump 2 hence wheel speed, and actuation of an operating piston 12 restricts the flow through a valve 19/20 to the passage 10 to pressurize the boost chamber 11 and displace the piston 7 closing a recuperation value 21/22 and displacing fluid through a port 15 to a brake 16.  An orifice 29 of the valve 28 causes a pressure drop, the inlet or pump pressure being communicated past a valve element 45 and through a passage 46 to the left hand end of a spool 39 of the by-pass valve 30 to act in opposition to the reduced pressure from the valve 28, communicated through a passage 41 and bores in the spool 39 and the force of a spring 40 to displace the spool and increase the effective area of a ramp 31 as the pump pressure increases to by-pass fluid through a passage 42 and the outlet 35. On deceleration or stopping of the wheel and pump 23 pump pressure is reduced and the high pressure in the passage 46 acts on the valve element 45 and the left hand end of the spool 32 to displace it and dump the boost pressure through annulus 33 and the outlet 35.
Patent GB-147746-A (GB)
Title: Improvements in or relating to insulating electrical resistances
IPC: H01B3/08
Filed: 1920-07-08
Abstract: 147,746. Bleriot, Ltd., (Assignees of Nadaud, J.). Nov. 8, 1917, [Convention date]. Refractory substances.-A composition for electric insulation, especially designed for use with electric heating and cooking apparatus, consists of carborundum with a solution of potassium or sodium silicate as a binding-medium, with or without the addition of washed sand, powdered quartz or glass. The mixture is slowly dried and then baked at a temperature of 400-500‹ C
Patent GB-1016141-A (GB)
Title: Improvements relating to bearings
Inventor: HYAMS JACK ELLIS
IPC: F16C19/54
Filed: 1961-06-01
Abstract: 1,016,141. Bearings. AMIGO MACHINE CO. April 11, 1962 [June 1, 1961], No. 19765/61. Heading F2A. In a thrust bearing assembly having two or more axially-spaced thrust bearings, thrust is transmitted to or from one corresponding thrust face of each bearing by a single body of fluid acting directly or indirectly on the corresponding thrust faces. In an embodiment, a shaft 10 is mounted in a housing 11, on bearings 12, 13 having seals 14, 15 respectively. The shaft has an integral flange 16 which abuts a thrust bearing 18 and has a thrust ring 21, carried in a peripheral groove thereof, which abuts a thrust bearing 20. Additionally, the thrust bearings 18, 20 are abutted respectively by a flange 23 of an outer sleeve 24 and by an inner sleeve 27. An annular space 28 is formed in the housing 11 and has a wall comprising faces 29, 30 of the outer and inner sleeves 24, 27 respectively. The effective areas of faces 29, 30 are equal so that pressurized fluid, supplied at 33, effects an equal force to each of the thrust bearings 18, 20. Seals 31, 32 are provided to prevent escape of pressurized fluid and springs 25, 34 are positioned in the flange 23 of the outer sleeve 24 and in the inner sleeve 27 respectively.
Patent GB-303335-A (GB)
Title: Improvements relating to drawing pins
IPC: G09F23/00
Filed: 1928-07-07
Abstract: 303,335. Shannon, S. J. L. July 7,1928, Pins, drawing.-A sheet 3 with advertising matter is placed between the disc of a drawing pin and an imperforate transparent cover 2 for the same. The sheet 3, the cover 2 and the disc are held together by a channelled ring 4. The disc may comprise two laminae 5, 6 between which the head 7 of a drawing pin is inserted, one laminae being- perforated to receive the pin stem 1.
Patent GB-849981-A (GB)
Title: Method and apparatus for the attenuation of glass fibres
IPC: C03B37/04
Filed: 1957-06-24
Abstract: 849,981. Glass fibres. OWENS-CORNING FIBERGLAS CORPORATION. June 24,1957 [June 28, 1956 ; June 29, 1956], No. 19814/57. Drawings to Specification. Class 56. In the manufacture of glass fibres by the centrifugal spinning method external means are provided for heating the glass in the neighbourhood of the periphery of the centrifuge from a primary source of heat independent of the alternating blast and the gases in the neighbourhood of the blast from a secondary source of heat spaced from the primary source approximately in the direction of movement of the glass. Annular heaters are employed both of which may be gas-heated or the one heating the glass may be electrical. The attenuating is effected by an annular blast of steam which may be parallel to the axis of the spinner or radial thereto.
Patent GB-406009-A (GB)
Title: Improvements in braun tubes, more particularly for television purposes
IPC: H01J29/52
Filed: 1932-07-13
Abstract: 406,009. Cathode - ray tubes. FERNSEH AKT.-GES., Goorzallee, Zehlendorf, Berlin. July 13, 1932, No. 19856. Convention date, July 31, 1931. [Class 39 (i).] Braun tubes with hot cathodes acting as image-producing devices in television &c. are provided with metal electrodes applied to the glass wall of the tube and interengaging thereon without mutual overlap, part of these electrodes being electrically connected to the fluorescent screen. The electrodes may be metal coatings 6, 7 chemically deposited on the wall, separated by a zig-zag gap as shown, and connected respectively to the fluorescent screen 4 and the anode 1. The potential gradient of the electric field along the tube is thus made constant and all points corresponding to possible deflections of the ray are kept at the same potential in the same transverse cross-section. The coatings may be replaced by wire apices. The Specification as open to inspection under Sect. 91 comprises also circular-ring electrodes spaced apart and at successively increasing potentials to produce the increasing potential along the tube, also arrangements of rayfocussing devices and electrodes. The electrons may be variably focused electrostatically or electromagnetically on to a diaphragm to control the number of electrons passing through a small aperture therein, and so to modulate the intensity of the ray according to the picture intensity, the ray being then brought to a sharp point on the fluorescent screen by focusing the aperture on to the screen electrostatically or electromagnetically. Electrons from a hot cathode 1, Fig. 1 (Cancelled), are variably focussed on to the positive apertured diaphragm 3 by a Wehnelt cylinder 2 positive or negative with respect to the cathode 1, the diaphragm 3 being very close to the cathode 1 or at a distance. The cylinder 2 may have lateral apertures or be of gauge to equalize gas pressure inside and outside. The electrons issuing from the diaphragm 3 are concentrated by a cylinder 5 negative with respect to the diaphragm 3 or by an electromagnetic coil. When a highvoltage anode 6 connected to the fluorescent screen is used, the focussing coil surrounds this anode 6 and the distances of this anode 6 from the diaphragm 3 and from the fluorescent screen 9 are in the ratio 1 : 2. If the anode 6 is omitted, the coil is midway between the diaphragm and the screen. A thin metal coating is provided between the fluorescent screen and the glass wall or on top of the screen. The production of varying intensities in the light spot on the screen by modulating the velocity of the ray, the deflecting potentials being correspondingly modulated, is also referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-521587-A (GB)
Title: Apparatus for unwinding wound thread
IPC: D04B3/00
Filed: 1938-07-05
Abstract: 521,587. Unwinding thread. I. G. FARBENINDUSTRIE AKT.-GES. July 5, 1938, Nos. 19888, and 1989. Convention dates, July 13, 1937, and Jan. 7, 1938. [Class 120 (ii)] An apparatus for enabling unsupported wound bodies of thread to be unwound from the inside comprises a pot. shaped container a having a polished conical core b over which the wound body is threaded and a similar conical cover e internally lined with fur or velvet and having a hole h at the top for the passage of the thread and a polished annular rim g at the base: The device enables the thread to be unwound from inside the body without tensioning or tangling of slackened thread. In a modified form, the lower part of the central core is cylindrical and formed with annular ribs, while the upper part is conical.
Patent GB-238702-A (GB)
Title: Improvements in and relating to cutting tools for use in lathes
IPC: B23B27/16
Filed: 1924-08-25
Abstract: 238,702. Montstream, J. H. Aug. 25, 1924. Tools; toolholders. - A lathe tool comprises a body having one or more helical ribs 14. the ends of which are shaped to form cutting-edges 22 whose rake varies progressively from end to end. The cutter is held in a split holder 7 by a clamping screw 12, the axis of the cutter being set approximately parallel to the work and transversely of the shank 8 of the holder. The end faces of the tool may be chamfered and cutting edges may be formed on each side of each rib.
Patent GB-1205986-A (GB)
Title: Multiple-effect absorption refrigeration systems with refrigerant economizers
IPC: F25B15/00
Filed: 1968-04-30
Abstract: 1,205,986. Refrigerating. CARRIER CORP. 30 April, 1968 [31 May, 1967], No. 20485/68. Heading F4H. The subject matter of this Specification is substantially the same as that described in Specification 1,205, 984 but the claims are concerned with the high pressure refrigerant economizer.
Patent GB-1342331-A (GB)
Title: Double-rail overhead conveyor
IPC: B65G21/22
Filed: 1972-05-03
Abstract: 1342331 Overhead conveyer SUCMANU 3 May 1972 [30 June 1971] 20495/72 Heading B7L An overhead conveyer comprises two rails 1 held in juxtaposition by supports 2, each rail 1 having a bearing surface 3 and a guiding surface 5 for receiving bearing rollers 4 and guide rollers 6 of a load carrier respectively, guiding surface 5 being perpendicular to bearing surface 3 and each rail having a groove 10 extending therealong and opening at a face 11 of the part of the rail which forms the guiding surface 5, this face 11 being remote from the guiding surface 5 and the groove 10 being wider near the guiding surface 5 than at the opening. Bolts 29A are received by the supports 2 and have heads which are engaged in the grooves 10, the shape of the heads being such that they can be entered into a groove 10 in a direction at right angles to the length of the groove and rotated into a position in which they cannot be withdrawn in this direction. The groove 10 may be of dovetailed cross-section, Fig. 4, or T-shaped, Fig. 3 (not shown) and Figs. 4 and 7, and may be formed in a protuberance 12 extending longitudinally of the rail, Figs. 5 and 7. The general shape of the rail 1 may be rectangular, Fig. 3 (not shown) and Fig. 4, L-shaped, Fig. 5, or U-shaped, Fig. 7. Each support 2 comprises a crosspiece 22 carrying two downwardly extending limbs 23, the extremity 24 of each of which has two mutually perpendicular faces 27 and 28 which engage a rail 1 and also has a slot 29. The slot 29 and groove 10 receive a bolt 29A having a head shaped similarly to the groove so as to secure the rail 1 to the support 2. Curved rails 1 are each provided with a rectilinear portion at each end of the curved portion, Figs. 8 and 9 (not shown). Two abutting rails are connected by supports 2 extended in the longitudinal direction of the rails so as to include a second slot 29. A switch element, Fig. 11, comprises a block 38 having a bearing surface 42 and two vertical guiding surface 45 and 41 continuous with the corresponding surfaces of a straight rail 44 and curved rail 39.
Patent GB-659024-A (GB)
Title: Improved counter-sink tool
IPC: B23Q11/00
Filed: 1949-08-06
Abstract: 659,024. Drilling. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., Sir W. G., and PLESTER, J. Aug. 6, 1949, No. 20518. [Class 83 (iii)] A countersinking tool comprises a body 12 carrying a driving motor 11, means for blowing away swarf and cooling the cutter 15, and a spacer 32 for limiting the penetration of the cutter, the spacer encircling the cutter shank and being adjustably carried by the body The pneumatic motor 11 extends into the body sufficiently to contain the exhaust air from ports 22 with or without the aid of a seal such as the washer 23 and the air is led through passages 29 into the main part of the body and thence through a pipe 30 which directs it through holes 31 in the spacer. The motor drives a chuck 13 which is opened and closed by a bevel gear ring 18 operated by a tool inserted through an opening 19 in the body; this opening is normally closed by a ring 24 rotatable round the body. The spacer is screwed into the end of the body and locked by a nut 37; for setting the spacer and temporarily positioning it before locking, a spring-pressed plunger 40 engages an external ring of serrations 39 on the spacer. An enlarged bore on the end of the spacer permits countersinks with varying sizes of head to be fitted.
Patent GB-705428-A (GB)
Title: Improvements in or relating to steering-brake systems
IPC: B62D11/08
Filed: 1951-08-30
Abstract: 705,428. Steering brakes. MASCHINENFABRIK GEB. KRAMER GES. Aug. 30, 1951 [Oct. 23, 1950], No. 20541 /51. Class 79(2) In a steering brake for tractors in which means for the actuation of single wheel brakes of the rear wheels are so yieldably connected to the steering member that these brakes are automatically actuated when a fairly large lock is imparted to the front wheels, and which on a vehicle with a steering gear including a steering shaft in a steering worm mechanism, the transmission mechanism which serves to actuate directly the single wheel brakes on the rear wheels is linked to an arm fixed to the steering shaft at a distance from the steering shaft which is shorter than the 'distance between the steering shaft and a point of articulation of a steering rod on the arm. In the arrangement shown, a steering drop-arm 11 is connected through a rod 13 to a piston 3 which is slidable in a cylinder 1 connected to a brake lever 15. Movement of the piston 3 in a direction to apply the brake is initially unopposed but is subsequently resiliently opposed by a spring 4. A single brake pedal is provided for operating simultaneously the brakes on both sides of the vehicle.
Patent GB-692088-A (GB)
Title: A process for making hydraulic binding material and refractory bricks
IPC: C04B28/08
Filed: 1949-08-08
Abstract: Soda slag produced in the desulphurization of pig iron is substituted wholly or partly for Portland cement in the manufacture of ordinary or refractory hydraulic cements, fast-setting cement made from blast-furnace slag, and refractory mortars and tamping compositions. A hydraulic material can be obtained by grinding soda slag with quartz sand, and building blocks and other shaped bodies can be made from mixes containing granulated blast furnace slag, sand, ashes, sawdust or other fillings, and cement or lime containing a small amount of soda slag.
Patent GB-197588-A (GB)
Title: Automatic wind rain and dust excluder for house doors
IPC: E06B7/20
Filed: 1922-07-28
Abstract: 197,588. Vaughan, M. G. July 28, 1922. Draught, dust, and weather excluders.-A sliding shutter D is housed in a casing on the bottom of a door, and is raised from the floor by a spring acting on a hook and wires c, c<2>, and is depressed by springs e, e<1> when the spring acting on the hook is compressed by the shutting of the door. The push-piece, which consists of two parts with adjusting packing-pieces between them, engages a sunk protector-plate in the jamb.
Patent GB-1490767-A (GB)
Title: Indexing mechanism
IPC: H01H21/50
Filed: 1975-05-15
Abstract: 1490767 Stopping at predetermined positions CTS CORP 15 May 1975 [15 May 1974] 20747/75 Heading F2E An indexing mechanism, e.g. for a selector switch, comprises a housing 24, a shaft 18 rotatable in the housing, an annular insert 16 bearing alternate elevations 35 and recesses 36, and a dished spring plate 20 formed with projections 50 for engaging recesses 36, the plate being keyed to the shaft and the insert to the housing. Engagement of the insert with the housing is by radial lugs 38 having spring arms 40, 40a bearing against the walls of slots 32. A stop member 60 is also keyed to the shaft to limit its rotation by engagement of part 64 with a projection 72 on an end plate 22 which is secured to housing 24. The latter has posts 26 serving to mount a switch 12.
Patent GB-811006-A (GB)
Title: Improvements in or relating to servo-assisted liquid pressure braking systems
Inventor: BURWELL NEIL WORRALL
IPC: B60T13/24
Filed: 1956-07-04
Abstract: 811,006. Hydraulic brakes. AUTOMOTIVE PRODUCTS CO. Ltd. March 27, 1957 [July 4, 1956], No. 20760/56. Class 103 (1). A pneumatic servo-unit for hydraulic brakes which, as shown, is of the " vacuum suspended " type, comprises a generally cylindrical casing formed in two sections 23 and 24 to either side of a central partition member 22, the member 22 having therein a passage 67 for flow of hydraulic fluid from a primary master cylinder 73 to the secondary master cylinder 26, and a passage 69 for entry of air from the atmospheric air inlet 21. The liquid behind the piston of the intermediate or secondary master cylinder 26 is in communication, through a central passage in tubular rod 38 with a space 36 behind a piston 37 movable in a cylinder 35 disposed centrally of the main servo piston 31. The chambers 33 and 34 on either side of the piston 31 are normally in communication through openings 48 and 49, a port 71 in space 34 being coupled through conduit 17 to the inlet manifold 18 of a vehicle engine. When pressure is applied by the pedal of the primary master cylinder, such pressure is communicated by conduit 67 and the central passageway in rod 38 to the space 36 so that piston 37 is advanced carrying with it the disc 46 which engages the edge of flange 47, thus cutting off communication between chambers 33 and 34. On further movement of the piston 37, the flange 42 moves away from disc 46 and air from conduit 69 and the inside of flexible element 43 can then pass into chamber 33, thus setting up a differential pressure across the piston 31 by which it is moved. The piston 31 thus moves and applies a thrust to the piston of the secondary master cylinder to transmit pressure to the wheel brake cylinders. The movement of the piston 31, however, reopens communication between the chambers 33 and 34 so there is thus a self-lapping action of the valve dependent on the force exerted by the servo-piston and the pressure produced by the primary master cylinder.
Patent GB-744938-A (GB)
Title: Improvements in or relating to tipping apparatus for unloading vehicles
IPC: B65G67/00
Filed: 1953-07-27
Abstract: 744,938. Sifting apparatus. BAMMANN, H. July 27, 1953 [July 26, 1952], No. 20763/53. Class 117. [Also in Group XXX] A conveyer for detaching earth from farm produce which it conveys comprises two pairs of endless chains 11, 13 joined by transverse members 21, 23 and led, in the upper conveying run, in an undulating path by sprockets 14. On the lower run sprockets 16, 15 separate the two pairs of chains to facilitate passage of earth dislodged on the upper run.
Patent GB-334991-A (GB)
Title: Improvements in and relating to electrolytic apparatus
IPC: C25B9/17
Filed: 1929-07-06
Abstract: 334,991. Knowles, A. E. July 6, 1929. Cells; hydrogen and o x y g e n, obtaining; electrolytes, circulating and purifying. - In a cell for generating oxygen and hydrogen the gas offtake pipes g from one set of collecting bells c enter and project well above the bottom of a main collecting pipe f. Electrolyte carried along with the gas returns to the bottom of the cell by a pipe k. The liquid space at the bottom of the pipe f may be separated off by a perforated partition, but this is not necessary. A drawoff cock m is provided near the end of the pipe f which may be utilized to blow off any scum from the separated electrolyte. Similar collecting means are provided for the other gas. Sodium or potassium hydroxide solution is used as electrolyte.
Patent GB-242384-A (GB)
Title: Magnetic structures and methods of manufacture thereof
IPC: H01F1/18
Filed: 1924-09-04
Abstract: 242,384. Western Electric Co., Ltd., (Western Electric Co., Inc.). Sept. 4, 1924. Addition to 188,688. Drawings to Specification. Alloys.-Magnetic material having high initial permeability consists of an iron-nickel alloy containing preferably 78.5 per cent of nickel and 21.5 per cent of iron. Alloys containing 50-90 per cent of nickel are also referred to.