baber/WOPTO huggingface dataset:
Patent GB-2079350-A (GB)
Title: Mounting means for mineral cutting picks
IPC: E21C35/18
Filed: 1981-06-09
Abstract: A mineral cutting pick provided with resilient means (22) for retaining it in a socket in pick box (16). So that the force required to insert the pick in the pick box can be relatively small and the force required to extract it can be relatively high, the resilient means (22) include projecting parts (24) which take up positions in the pick box from which they cannot be returned by an extraction force applied to the cutter pick. An extraction force applied to the pick is effective to at least partially shear or rupture the projecting parts (24) of the resilient means from the part of said means connected to the pick or to invert said projecting parts (24) to allow the extraction of the pick from the pick box. Other forms of resilient means 22 to that shown in Figure 1 are also described. <IMAGE>
Patent GB-2094193-A (GB)
Title: Mould for direct-chill casting of metals
IPC: B22D11/07
Filed: 1982-01-22
Abstract: A chromium plated layer (30) is provided on an inner surface of a mold (12) which is contacted with molten metal to be cast. The mold includes an overlying hot top (10) affording a feed- head smaller in cross-section than the mold cavity. Also included is a lubricating system in which a common rotary drive shaft operates several plunger- type pumps which pump lubricant to respective molds. <IMAGE>
Patent GB-2117026-A (GB)
Title: Roof underlining and method of erection
Inventor: BRATCHER MICHAEL DAVID CHRISTO
IPC: E04D3/36
Filed: 1982-03-19
Abstract: The underlining formed of panels 12 passes under and is secured to, roof support members, e.g. purlins 2, having upward-extending lips 11 at their lower parts. Working from the panels 12 are pulled up against the bottom flanges 9 of the purlins 2 and are secured by profile strips 13, tension bolts 14, hooks 16 which hook over lips 11, and nuts 17. Erection is simplified and staging is not required. An outer roof cladding 4 is shown. <IMAGE>
Patent GB-2111298-A (GB)
Title: Improvements in magnetrons
Inventor: PICKERING ALAN HUGH
IPC: H01J25/55
Filed: 1982-05-21
Abstract: A coaxial magnetron has an anode wall 2 with vanes extending inwardly from the region 4, and with slots 3 cut in the wall to provide coupling between inner and outer resonance cavities. Undesirable resonances which occur because of the slots 3 can be discouraged by using an attenuator 8, but power at the operating frequency is also thereby reduced. The slots are designed and disposed so that induced currents between A and B and B and C are exactly balanced so that they cancel, and there is no coupling into the attenuator 8 of power at the operating frequency. B is such that if the slot is short circuited there the inner anode frequency equals the operating frequency. By arranging that B lies within a wide section of the slot cancellation occurs over a range of operating frequencies. A shield 10 co- axial with and outside the anode wall 2 may be used to select the range of frequencies over which cancellation occurs. <IMAGE>
Patent GB-2103026-A (GB)
Title: Dimensionally recoverable cable enclosures
Inventor: THOMAS DAVID HAMILTON
IPC: H02G15/18
Filed: 1982-06-21
Abstract: A dimensionally recoverable body, which is preferably heat-recoverable, has a body wall which is provided with a plurality of locking elements that are engagable with each other, or are engagable with corresponding elements located on a separate partition, to furcate the bod into a plurality of channels.The body may be used for enclosing branch-offs in electrical cables in order to protect the enclosed branch-off from the environment.
Patent GB-2122910-A (GB)
Title: Extraction of floatage
Inventor: HALPENNY THOMAS ANTHONY
IPC: B03B5/28
Filed: 1982-06-26
Abstract: Floating particles, particularly cenospheres which are separated from pulverised fuel ash in a flotation tank, are removed from the tank by suction and delivered to a container having a filter plate through which the accompanying water is drained off, by gravity possibly assisted by suction. The container may have a heater to dry the particles and may be constructed as a wheeled vehicle or skip, in which the particles may be delivered to a customer. <IMAGE>
Patent GB-2125122-A (GB)
Title: A brake pad for use in a disc brake
Inventor: MATTHEWS ROY DAVID
IPC: F16D69/04
Filed: 1982-07-27
Abstract: The pad comprises a substantially laminar portion having a flat major surface which acts as a braking surface in use of the pad, the major surface comprises first and second surface parts provided by friction material (2) comprising part of the said portion and, between the said first and second surface parts, a third surface part provided by a piece (4) of chrome-tanned leather comprising another part of the said portion. As shown, piece (4) is in the form of a strip received and bonded in a groove in a member providing the friction material. The laminar portion is carried by a support member of steel. <IMAGE>
Patent GB-2110113-A (GB)
Title: Impeller bar for hammer type mill
Inventor: SANDERS JOHN
IPC: B02C13/28
Filed: 1982-08-02
Abstract: An impeller bar 1 for a hammer type mill incorporates a plurality of peripherally located, hard material inserts 7, preferably located in axially extending rows 6. Each insert is brazed in a blind hole. <IMAGE>
Patent GB-2108560-A (GB)
Title: Skylight with insulated curb frame
Inventor: JENTOFT ARTHUR PHILIP
IPC: E04D13/03
Filed: 1982-11-26
Abstract: The skylight may be of the domed-type or flat type and of single or double glass (16, 18) (acrylic or other transparent or translucent plastics) construction. The skylight fits within an opening in a roof or the like and has a peripheral curb (20) of aluminium or the like metal heat conductive material which is fixed to the roof construction about the opening. The curb member or frame at its top receives a flexible thermoplastic (such as PVC) gasket (48) compressible against the edge of the glass or plastic dome or panel. The frame or curb has a thermal bridge (21) to minimise the transfer of heat from one side of the frame extrusion to the other. The method of fabrication comprises steps of casting plastics material in a cavity and subsequently cutting away the metal wall (at 23A and 25A).   <IMAGE>
Patent GB-2133922-A (GB)
Title: Battery
Inventor: LO KAN CHEUNG MICHAEL
IPC: H01M6/48
Filed: 1983-01-21
Abstract: A layer built battery having a plurality of dry cell or zinc chloride cell units (20) stacked one over another by inserting each cell unit into the heat shrinkable plastics casing (26) of another cell unit to form the cell unit stack. Each cell unit comprises in combination a tablet shaped composite positive electrode (25), a paper casing (24), a zinc sheet negative electrode (22), a carbon conductive film and a heat shrinkable plastics sleeve casing (26). A jacket closure (29) having a metal end plate with a heat shrinkable plastics sleeve laminated on side edges of the metal plate sits on top of the tablet shaped composite positive electrode of the top cell unit of the cell units stack and acts as a current collector. The cell units stack is sealed with a layer of wax (30) and the battery is completed by placing an additional two terminal top plate (28) on top of the cell units stack and packing into a metal casing (27) to enclose the corners, the side edges and the bottom of the cell units stack leaving the upper surface of the two terminal top plate exposed. <IMAGE>
Patent GB-2114778-A (GB)
Title: Methods of and apparatus for controlling the residual oxygen content of waste gases of blower- type firing installations
Inventor: MUHEIM RUD
IPC: F23N5/00
Filed: 1983-02-01
Abstract: An output-controlled blower-type firing installation is operated by an output controller (9, 10) with a drive means (14) and control means (16, 17) with a fixedly set fuel/air ratio. An oxygen detector (20) for keeping the level of residual oxygen in a waste gas passage (19) low influences a drive means (26) of an additional flap (27) by way of a controller (22). The control range of the additional flap (27) is limited, in dependence on the condition of the combustion air, by an additional controller (28, 30). When limit positions are reached, an alarm (44) is triggered and the air feed is increased again in order to prevent operation with a deficiency of air. That permits a basic adjustment with a low excess of air and correspondingly increased efficiency. <IMAGE>
Patent GB-2136328-A (GB)
Title: A method of making a grid
Inventor: MERRICKS KENNETH VYVYAN
IPC: B23P15/00
Filed: 1983-02-17
Abstract: An accelerator grid for a particle accelerator is formed by providing a single piece of copper to form parts 8, 9 and 10 as illustrated. This can either be machined from a single sheet or can be formed by electro-depositing copper on a stainless steel master from which it is subsequently removed. The grooves 4 and the inlet and outlet plenum chambers 5 are filled with a very low melting point alloy e.g. of bismuth, lead, tin and cadmium. After machining the surface flat a further layer of copper is deposited over the surface so as to enclose the cavities filled with the alloy. The apertures 2 are then drilled and finally the alloy is removed by melting. In use a potential difference is applied between a source of ions to be accelerated and the illustrated grid so as to accelerate the ions towards the latter. Some of the ions pass through the apertures 2 and others are incident on the grid. The resulting heat is removed by a coolant such as water which is forced through the ducts 3. <IMAGE>
Patent GB-2135750-A (GB)
Title: A method of manufacturing a foldable structure
Inventor: RAE WILLIAM
IPC: A47B96/20
Filed: 1983-02-21
Abstract: A method of manufacturing a foldable structure which, when folded, produces an edge or corner profile which is preferably curved. A longitudinally extending recess 4 is machined in a panel 1 so that there is formed in the recess a support rib 5 and curved surfaces 6 and 7 which are separated by the support rib and extend towards one another. A flexible bridging member 12 is located in the recess 4 to bridge the profiling surfaces 6 and 7 and be supported on the rib 5. A second longitudinally extending recess 14 is now machined in the opposite face of the panel 1 to break through into the recess 4 on opposite sides of the rib 5 so that the panel is divided into two panel parts and the rib 5 is cut away for removal. The panel parts remain connected by a foldable region constituted by the flexible member 12 which is adhesively secured to both those parts. A second flexible bridging member 13 may be applied as a facia sheet.   Channels 10 and 11 are machined in the recess 4 to alleviate the flow of adhesive on to the curved surfaces 6 and 7. <IMAGE>
Patent GB-2118993-A (GB)
Title: Joint for modular building panels
Inventor: GRANIERI LUIGI
IPC: E04B1/68
Filed: 1983-03-23
Abstract: Each of a pair of first profiles comprises a U-shaped channel (1) and a C-shaped channel (3) interconnected by a straight portion (2), and each of a pair of second profiles comprises a U-shaped channel (11) and a C-shaped channel (13) interconnected by an extended limb (12) of the U-shaped channel (11). The U-shaped channels (1, 11) are adapted to receive edge regions of the outer sheet members (4, 14) of a pair of panels and the profiles are connected together by arcuate connecting members (6, 16) having channels (7, 17) at their ends which are engageable with the C-shaped channels (3, 13). When the panels are connected together the arcuate portions of the connecting members (6, 16) form between them a cavity (10) for the reception of electric cables which cavity is displaced from the plane at which the edges of the outer sheet members meet each other. The cavities between the outer sheet members (4, 14) are filled with thermally insulating material. <IMAGE>
Patent GB-2138719-A (GB)
Title: Grinding apparatus
Inventor: CENKALO MYRON
IPC: B24B7/04
Filed: 1983-04-26
Abstract: A machine for grinding small ferrite discs to a required thickness has a continuously rotating turntable 8 incorporating a number of vacuum chucks 9. Ferrite discs are loaded onto the vacuum chucks 9 in a region 16 and are moved, by rotation of the turntable to a first grinding position 10 where they are ground by a coarse grinding wheel 11 then a fine grinding wheel 12. The workpieces are inverted in the region 17 before passing to a second grinding position 10A where the reverse sides are ground in the same way. Finally the finished workpieces are removed in the region 16. The grinding wheels used in this system need be only of the same order of size as the workpieces to be ground. Since the grinding wheels themselves contribute a significant part of the cost of a grinding machine this constitutes a considerable cost saving compared with conventional machines where much larger grinding wheels are required. <IMAGE>
Patent GB-2120863-A (GB)
Title: Magnetic transformer for a discharge lamp ballast
Inventor: STUPP EDWARD HENRY
IPC: H01F38/08
Filed: 1983-05-23
Abstract: A magnetic transformer which switches its primary flux path upon conduction in its secondary and the combination thereof with a fluorescent lamp in which the heater current is reduced upon lamp ignition by reason of the current in the heater winding in the secondary being reduced upon the primary flux path being switched. Before lamp ignition, the magnetic circuit for primary flux is ends (72, 74) and side (76) of end-to-end pot cores (52, 53), first and second cylindrical core sections (62, 64), disc (66) at end of section (64) and a first air gap (79). After ignition, current in secondary (39) produces flux which bucks primary flux so that the magnetic circuit for the latter changes to end (72), section (62), first gap (79), disc (66), second air gap (82) and sidewall (76). Thus flux-linkage to the secondary is reduced and lamp cathode heater power (supplied from heater windings (41,42)) is automatically reduced. <IMAGE>
Patent GB-2141514-A (GB)
Title: Branch fitting for providing access to the interior of a pipe
Inventor: NOOY BURTON VER
IPC: F16L41/06
Filed: 1983-06-16
Abstract: A branch fitting for providing access to the interior of a pipe, the fitting having first and second body portions each having a semi-cylindrical surface adapted to sealably engage the pipe (10), the body portions being secured together and to the pipe in a pressure retaining relationship, one body portion having a first and second integral cylindrical barrel portion (22, 24) extending in the plane of the tubular axis of the pipe, the cylindrical axes of the barrel portions intersecting each other at a point at or adjacent the pipe wall, a cutter within one of the barrel portions having a shaft extending sealably exteriorly of the barrel portion whereby the cutter may be rotated and axially advanced to form an opening in the pipe, the opening being coincident with the cylindrical axis of the second barrel portion. The second barrel portion may contain a plugging or pig member and means of delivering it into the interior of the pipe through the formed opening. <IMAGE>
Patent GB-2123326-A (GB)
Title: Cold chamber die casting machine
Inventor: YAMAGUCHI TERUMOTO
IPC: B22D17/20
Filed: 1983-06-21
Abstract: A molten metal passage (23) leading the molten metal (37) supplied through a molten metal inlet up to a forming cavity (50) of a mould by an injection piston (23a) rises gradually in the direction of the mould. Accordingly, the air in the molten metal passage is injected into the forming cavity prior to the molten metal whereby the amount of blowhole and/ or sink occurring in a product cast in the forming cavity is reduced. In an embodiment (Figure 18, not shown) a movable dam member (85) may initially restrain molten metal from moving up the passage towards the mould. In an embodiment of die-casting machine described, there may be multiple mould cavities disposed radially about a common inlet runner; the axes of the cavities may be horizontal (Figure 12) or inclined at the same angle to the horizontal as is the molten metal passage (Figure 16). The machine may include a melting furnace, means for supplying metal spheres to be melted to the furnace, a slag skimmer, a trimming device for trimming the casting(s) and means for returning trimmings to the melting furnace. <IMAGE>
Patent GB-2128376-A (GB)
Title: Overspeed sensing system
Inventor: FREY DANIEL JOHN
IPC: G01P3/489
Filed: 1983-06-24
Abstract: In an overspeed sensor for a gas turbine, a symmetrical pulse signal B of frequency proportional to rotational speed of a rotor is compared initially at 18 with a first reference period of a non-symmetrical pulse signal A for indicating existence of an overspeed condition, and subsequently, with a second greater reference period of signal A for indicating absence of overspeed. An output signal C is produced for correcting the overspeed, e.g. by restricting fuel flow to the turbine at 21. The two reference periods (ON and OFF) can be independently adjusted by reference data generator 24. <IMAGE>
Patent GB-2128696-A (GB)
Title: Brake-booster master cylinder arrangement
Inventor: VON GRUENBERG HUBERTUS
IPC: B60T13/567
Filed: 1983-08-25
Abstract: A brake-booster master-cylinder arrangement (1,2) for an automotive vehicle comprises a master cylinder (2) seated in an opening (30) of the booster housing (4,5) and (4,5), secured to a wall (3) of a vehicle by means of a single retaining element (38) acting on the master cylinder (2) and in order to achieve an arrangement as light-weight and, structurally, as simple as possible and hardly prone to disturbances the retaining element (38) is passed outside around the booster housing (4,5) and no further connecting elements are provided between the master cylinder (2) and the booster housing (4,5). Alternatively (Fig. 6) the master cylinder and booster are held against the fire wall (3) by a single bolt (65) mounted in a bracket (63) and engaging the end of the master cylinder. <IMAGE>
Patent GB-2136418-A (GB)
Title: Derivatives of Dibenz[cd,f]indole
Inventor: GIGER RUDOLF K A
IPC: C07D209/80
Filed: 1983-09-27
Abstract: The compounds of formula   <IMAGE> wherein Z is a splittable ether group, R1 and R2 independently are ethyl and n-propyl radicals, in racemic form having the relative configuration 4aR*, 5aS* or an optically active form having the absolute configuration 4S, 5aR, are useful as intermedients for the preparation of pharmaceuticals.
Patent GB-2147456-A (GB)
Title: Piezo-electric vibrator assembly
Inventor: NEGITA MUTSUMI
IPC: H03H9/17
Filed: 1983-10-26
Abstract: A piezo-electric vibrator assembly comprising a sealed receptacle (21) within which is mounted a piezo-electric vibrator (100) of the longitudinal vibration type, the vibrator (100) having a main vibrating portion (14) which vibrates longitudinally and which is provided with main electrodes (14'a, 14'b), a supporting member (18) which is integral with and supports the main vibrating portion (14) adjacent the point where the vibrating displacement of the latter is smallest, the supporting member (18) having a turning fork portion (16a, 16b, 17) whose arms (16a, 16b) are disposed on opposite sides of a part of the main vibrating portion (14) and whose base (17) is provided with base terminals (17'a, 17'b) which are respectively electrically connected to the main electrodes (14'a, 14'b), and a terminal member (19) which is hermetically sealed to one end of the receptacle (21) and through which extend conductive leads (20a, 20b) which are electrically connected to the base terminals (17'a, 17'b) by means extending over an area greater than the cross- sectional area of the conductive leads (20a, 20b). An electrode etching process is described. <IMAGE>
Patent GB-2133216-A (GB)
Title: Keyboard switch
Inventor: MATSUMARU AKIHIKO
IPC: H01H13/712
Filed: 1983-11-30
Abstract: A membrane keyboard comprises a buffering layer 22 provided within at least one switch sheet or circuit layer whereby stress created by repeated actuation is more evenly dispersed resulting in prolonged operational life. The buffering layer 22 is preferably a material having a strong memory or restorative force such as a pressure sensitive or rubbery adhesive. The keyboard may have snap-action domes (31, Fig. 4). <IMAGE>
Patent GB-2138219-A (GB)
Title: Electric plugs
Inventor: BUTCHER ERIC JAMES
IPC: H01R13/68
Filed: 1983-12-20
Abstract: An electric plug comprises a base member (6) and a cover member (8) adapted to be secured together by at least one screw, and which each comprise a recess-defining part (28) which, together define an aperture through which a cable may extend into the interior of the plug. The base member is provided with apertures (36,38,40) through which the pins of the plug extend from the interior thereof, the pins being provided in side faces thereof of smaller dimension, with apertures (17,19,21) and protrusions (37,39,41) are provided which deform to allow insertion of the pins and then extend into said apertures to retain the pins in position relative to the base. A terminal member (45-47 Fig. 6) e.g for a fuse, may be friction-fitted into an aperture in the base by means such as serrated tags (47). <IMAGE>
Patent GB-2140308-A (GB)
Title: Dental apparatus
Inventor: LANGDON CHRISTIAN EDWARD CHARL
IPC: A61C19/055
Filed: 1984-05-11
Abstract: An intra oral dental parallelometer comprising a mechanical linkage having at one end portion a clamp (34) by means of which a dental handpiece (35), in which a tooth cutting tool is supported, can be clamped to one end portion of the linkage, and having at the other end portion remote from the clamp (34) an anchorage means (26) adapted to be held in use between the upper and lower jaws of a patient, the linkage comprising mutually pivoted parts (36, 38: 52, 54) which permit clamp movement with respect to the anchorage means (26) in two planes. <IMAGE>
Patent GB-2142454-A (GB)
Title: Automatic control and test of the diverse electrical and mechanical assemblies of the automobile
Inventor: PASSADA JUAN-FRANCISO VALL-LLO
IPC: G07C5/08
Filed: 1984-06-01
Abstract: In a system for the automatic control and testing of the diverse electrical and mechanical assemblies of an automobile, a central control unit (UCC) in the instrument panel (CI) has a microcomputer, which receives the multiplexed information from the control switches to transmit it simultaneously and radially through control lines (DSM) to the various peripheral units (UP) using synchronous-sequential series transmission and receives the information from the various peripheral units (UP) through control lines (DSS) using sequential series transmission for display on the instrument panel (CI). <IMAGE>
Patent GB-2159735-A (GB)
Title: Improvements relating to feed fingers
Inventor: WINDLEY PETER LESLIE
IPC: B23B13/12
Filed: 1984-06-02
Abstract: A bar-stock feed finger device comprises a tubular body 1 externally screw-threaded to receive an adjustable cap part 7 which is screwed on to the body to adjust the diameter of gripping means disposed within the body and is lockable in an adjusted position via a threaded ring 10. Various described gripping means in the form of a confronting spring loaded frusto-conical elements (shown) or axially slit resiliently compressible sleeves are interchangably accommodated by the tubular body. <IMAGE>
Patent GB-2161841-A (GB)
Title: Fencing with overlapping boards
Inventor: FOX JOHN
IPC: E04H17/16
Filed: 1984-07-18
Abstract: Each post 2 has vertical channel 4, so shaped that the boards 14 are held with the longitudinal edges of adjacent boards overlapped. Transverse shoulders 6c on the opposite side walls of the channel are in adjacent pairs, the shoulders in each pair being longitudinally offset one from the other. A top rail 12 may be positioned in slots 10. <IMAGE>