baber/WOPTO huggingface dataset:
Patent GB-810655-A (GB)
Abstract: 810,655. Fluid-pressure servomotor control systems. KEELAVITE CO. Ltd. Jan. 20, 1956 [Jan. 28, 1955], No. 2729/55. Class 135. A relief valve comprises a piston member which normally closes the port B4 between two flow chambers B<SP>2</SP>, B3 connected respectively to ports A<SP>1</SP>, A<SP>2</SP>. The piston member has a central closure part D<SP>2</SP> and two ends D, D<SP>1</SP>. Intermediate the end D<SP>1</SP> and the closure part D<SP>2</SP> is a part D3 of reduced diameter. The chamber B<SP>2</SP> is connected by passages D<SP>5</SP>, D4 and throttling orifices E<SP>1</SP>, Fl respectively to control pressure chambers E, F, closed by plug members C, C<SP>1</SP> respectively. A spring G in the chamber E urges the piston member to its closed position against a stop C<SP>2</SP> in the chamber F. Above the piston member are two chambers H, H<SP>1</SP> containing adjustably loaded non-return pilot valves K, M respectively. The chambers H, H<SP>1</SP> are interconnected by a passage H<SP>2</SP> and are connected to the control pressure chambers E, F respectively by passages H4, N. A passage H<SP>3</SP> interconnects the chamber B3 and the passage H<SP>2</SP>. In operation the parts are normally in the positions shown, the pressure in chambers B<SP>2</SP>, B<SP>3</SP>, E and F being the same. If the pressure in chamber B<SP>2</SP> exceeds that in chamber B<SP>3</SP> by a predetermined amount sufficient to open the pilot valve K the control chamber E is connected via passage H<SP>4</SP>, pilot valve K, chamber H, passages H<SP>2</SP>, H<SP>3</SP> to the chamber B<SP>3</SP> so that the pressure in control chamber F will exceed that in control chamber E and, if the excess pressure is sufficient to overcome the force of the spring G the piston member will be moved to open the main port B4 for as long as the appropriate pressure difference exists. Similarly, if the pressure in chamber B<SP>3</SP> exceeds that in chamber B<SP>2</SP> by an amount sufficient to cause opening of pilot valve M the chamber B<SP>3</SP> will be connected to chamber F via passages H<SP>3</SP>, H<SP>2</SP>, pilot valve M, chamber H<SP>1</SP> and passage N. The pressure in chamber F will again exceed that in chamber E and if this excess is sufficient to overcome the force of spring G the piston member will again move to open the main port B<SP>4</SP>. A simple non- return valve may be located in either of the passages J4 or L<SP>2</SP> in place of or in addition to the non-return pilot valves K or M, in the latter case the valve K or M is adjusted to the open position.
Patent GB-2098058-A (GB)
Title: Upholstered furniture
IPC: A47C7/74
Filed: 1981-05-12
Abstract: An item of upholstered furniture, such as a chair, comprising integral heating means (7) and associated thermal insulation means. The heating means (7) can comprise electrical resistance coils contained in tubular supports, mineral insulated electrical resistance cables or conduits through which a heating medium can be passed. In one embodiment of chair, there is provided a canopy (3) provided with internal ducts (6) for conveying convected air therethrough from the heating means (7) which is associated with the seat (1) and/or the arms (2). A foot rest (8) contains a portion of the heating means (7) and is provided with apertures (9) in its upper surface for enhancing the upward flow of heat. A table (4) is hinged to one arm (2) and is provided with a skirt for sealing between the chair and floor, thereby excluding unwanted draughts. The thermal insulation means may comprise fibreglass matting wrapped around the contours of the furniture item beneath the outer fabric thereof. <IMAGE>
Patent GB-2076042-A (GB)
Title: Traffic markers
IPC: E01F9/00
Filed: 1981-05-14
Abstract: Each of a plurality of traffic markers 16 disposed along a curved highway, or over the brow of a hill, to indicate the curved path of the highway includes a viewing surface 18 connected by optical fibres 15 to a light source 14. One light source may serve many markers and the light source may be activated by a loop detection circuit 11 in response to the approach of a vehicle. The markers and fibres may be incorporated in a marking tape. <IMAGE>
Patent GB-2078847-A (GB)
Title: Tensioning clamp
IPC: H02G7/05
Filed: 1981-06-08
Abstract: A device for use in applying tension to elongate members comprising an elongate tubular body shell having a bipartite body shell (11) comprising two hemi-tubular half shells (12, 13) having castellations (17, 18) along longitudinal edges and adapted to be adjustably clamped together about the assembly with the castellations (17) on one half shell (12) in mating engagement with the castellations (18) on the other half shell (13) to provide a longitudinally tapering passageway (15) and a core member (30) adapted to be assembled together with one or more elongate members in wedging engagement in the passageway (15). The core member (30) comprises a plurality of longitudinally tapering wedge members (31) integrally connected to adjacent wedge members by flexible webs (32). <IMAGE>
Patent GB-2079958-A (GB)
Title: Circuit Breaker Test Apparatus
IPC: G01R31/327
Filed: 1981-06-18
Abstract: Circuit breaker test apparatus comprising a synchronous motor (6) having a dial connected to its shaft (6d) and arranged to operate switch contacts to simulate a fault condition when the dial is driven to a datum position, the time taken for the circuit breaker to operate responsively to the fault to interrupt the current supply to the test apparatus being indicated in accordance with the extent of rotary movement of the dial beyond the datum position, which continues until the circuit breaker operates. <IMAGE>
Patent GB-2100890-A (GB)
Title: Automatic correction of electronic timepiece
Inventor: CHU TSAN-CHEN
IPC: G04G5/00
Filed: 1981-07-01
Abstract: (106) comprises means (108, 111) for periodically and automatically connecting the timepiece (106) to a standard time signal via a telephone system (109, 110, 112, 113) for automatically synchronising the timepiece (106) with the standard time signal. The timepiece (106) is preferably capable of automatically adjusting its frequency or running speed in accordance with the deviation from the standard time, thus minimising accumulative errors between synchronisations. The telephone standard time signal may be derived from the generally available vocal time repeat or "talking clock". In this case, the time signal may be identified from the vocal signal by differences in period between subsequent signals and the time signal may be further identified by counting the number of vocal signals associated with it. The timepiece (106) may be connected to several secondary timepieces (107) of simpler construction, for example not having the automatic telephone communication facility, in order to provide a system of synchronised timepieces. <IMAGE>
Patent GB-2101687-A (GB)
Title: Rotary pumping apparatus
Inventor: BUDGEN LESLIE JOHN
IPC: F04C23/00
Filed: 1981-07-15
Abstract: The apparatus includes a rotary pump 1 having a pumping chamber 4 containing at least two co-operating rotors 3, which may be of the Roots' blower type. Each rotor is mounted on a shaft 5 which also carries a timing gear 11 or 12. The timing gears are accommodated in a casing 13 for a fluid coupling 18 through which the pump is driven by e.g. a motor 24; and thus, the timing gears are lubricated by the working fluid of the coupling. The apparatus may be adapted for vacuum pumping. <IMAGE>
Patent GB-2084660-A (GB)
Title: Auxiliary engine stoppage apparatus
IPC: F02D17/04
Filed: 1981-08-07
Abstract: Apparatus (10) for stopping an engine from a remote location relative to an operator's work station. An engagement apparatus (20) which is displaceable between first and second positions is engaged with an engine stoppage member (19) which, when rotatably displaced by the engagement apparatus (20) between two positions corresponding to the first and second positions of the engagement apparatus (20), can permit engine operation or induce engine shutdown. An actuating link (24) interconnected with engagement apparatus (20) is displaceable, when subjected to a momentarily applied external force, between engine operating and engine shutdown positions. A spring (30) biases engagement apparatus (20) towards the first and second positions when the actuating link (24) occupies the engine operation and shutdown positions, respectively. Externally applied forces on actuating line (24) are not transmitted directly to the engine stoppage member (19) since the spring (30) completes the movement of engagement apparatus (20) to first and second positions in response to movement of actuating link (24). Consequently, no damage occurs to stoppage member (19) but engine stoppage is assured.
Patent GB-2084671-A (GB)
Title: Assembly for forming a freewheel or unidirectional clutch
IPC: F16D41/07
Filed: 1981-09-28
Abstract: An assembly for forming a freewheel or unidirectional clutch is formed as a separate unit, which, in use, is inserted between the surfaces of a bore (1) and a shaft (3). The assembly acts both as a freewheel and as a roller bearing for supporting the shaft and the bore concentrically. The assembly comprises: a series of bearing rollers (5) and a series of sprags (6) arranged alternately, a continuous strip spring (7) which has tongues (9) biasing the sprags (6) towards wedging positions and clearance openings (11) for the rollers 5, and a cage (8) comprising a cylindrical ring (12) having undersize apertures (13) for the sprags (6) and windows (14) for the rollers (5). The ring 12 has an inwardly bent edge (16) terminating in a series of lugs (18) which are bent parallel to the ring (12) after the rollers (5) and the spring (7) have been placed in position. The rollers (5) are thus held captive between the ring (12) and the lugs (18) and cannot escape and the sprags (6) are prevented from escaping radially inwardly by the ring (12) and radially outwardly by the tongues (10). <IMAGE>
Patent GB-2084250-A (GB)
Title: Shape memory effect controlled-air intake for internal combustion engines
IPC: F02M31/06
Filed: 1981-09-29
Abstract: For controlling the temperature of air admitted to an internal combustion engine, the apparatus including flap 6 which controls the respective flows of air from ambient air inlet 2 and warm air inlet 3 both leading into air inlet duct 1 which may communicate with a carburetter of the engine via air cleaner filter 5. Flap 6 is controlled by the change of shape of shape memory effect (SME) element 11 which extends when a predetermined temperature is reached to close warm air inlet 3. Throttle override device 25 may be provided to hold warm air inlet 3 closed at a high throttle opening even where the predetermined temperature has not been reached. To prevent icing occurring where the ambient air temperature is at or below 0 DEG C and throttle override device 25 would otherwise become effective second SME element 29 contracts at 0 DEG C or below to render the throttle override device ineffective. Pneumatically actuated valve also referred to <IMAGE>
Patent GB-2090769-A (GB)
Title: Rotary gas scrubber
IPC: B01D47/16
Filed: 1981-12-01
Abstract: A method of and apparatus for washing gas in which a stream of liquid droplets are caused to flow in countercurrent with the gas, by accelerating liquid flowing to the peripheral edge of a ring of radially extending wings 18, on a rotating generator from where the liquid is shed to form streams of liquid droplets. The gas flows around a scroll surrounding the generator such that the tangential component of the gas velocity and the droplet velocity is in the same direction and the droplets move outwardly in countercurrent with the gas moving radially inwardly both under the influence of centrifugal force, within an uninterrupted annular reaction space 10 defined between the scroll and the periphery of the generator. Baffle plates 61 may provide a plurality of gas inlets to space 10 for greater uniformity of contact. <IMAGE>
Patent GB-2114950-A (GB)
Title: Winches
Inventor: BURTON KEITH
IPC: B66B11/08
Filed: 1982-02-12
Abstract: A winch for a haulage rope has two braking disc components (12), (13) fixedly mounted on opposed sides of the winch drum or surgewheel (7), the braking disc components substantially being mounted within a confine defined by the outer diameter of the surgewheel, At least one caliper brake unit is arranged to bridge the opposed sides of the surgewheel to brakeably cooperate with the braking surfaces of the two disc components. <IMAGE>
Patent GB-2090456-A (GB)
Title: Sound signal automatic detection and display method and system
IPC: G10G1/00
Filed: 1980-07-15
Abstract: A sound pitch detection and display system identifies automatically a note being played without requiring assistance from a vocalist or musician. A sound signal transducer (11) detects an input sound wave and supplies it to a filter (13) having bandpass characteristics. The bandpass characteristics of the filter are provided by a high pass filter stage (72) followed by an automatic gain control amplifier (75) that in turn is followed by two stages of low pass filtering (76, 77). The low pass filter stages supply their output to an alternate positive peak voltage and negative peak voltage detector circuit (15, 78) that derives an output representative of the fundamental frequency of the input sound wave being analyzed. The output from the detector circuit is supplied to a microcomputer (16) which processes the signal for display (18) for use by a musician, vocalist or like person for analysis and instruction purposes.
Patent GB-2102147-A (GB)
Title: Blocking laser beam for safety
Inventor: ARMSTRONG JACK
IPC: G01M11/00
Filed: 1982-06-16
Abstract: Apparatus for examination of the cut end of an optical fibre with a laser beam comprises a casing, enclosing the beam generator, specimen holder and screen, which has an access aperture (11) for the specimen holder e.g. on the top (2) and side (3) walls of the casing closable by an optionally L- shaped cover (12). A hinged flap (15) may include two arms (17) and (18). When the cover is open the arm (17) blocks the beam as a safety measure. As the cover is closed it engages the arm (18) rotating the flap to move the arm (17) clear of the beam. <IMAGE>
Patent GB-2125627-A (GB)
Title: Electric switches
Inventor: BEER BRIAN
IPC: H01H1/22
Filed: 1982-08-18
Abstract: An electric switch comprises a housing 1 containing a switch mechanism including a rigid arm member 11 pivotally mounted within the housing intermediate its ends and engaged or engageable adjacent one of its ends with an actuating member 13 projecting from the housing, and carrying a switch contact 15 adjacent its other end for engagement with a fixed switch contact 16 mounted in the housing. The arm member 11 is pivotally supported by a support member 6 which is keyed to at least one wall of the switch housing at one side of the pivot region 24, 25 and is supported against an inner surface 9 of the housing at the other side of the pivot region. An arcuate spring 17 may be located between the arm member 11 and the support member 6.   <IMAGE>
Patent GB-2129535-A (GB)
Title: Searchlight
Inventor: OSTERMANN GEORG
IPC: F21V19/04
Filed: 1982-09-23
Abstract: In order to uniformly illuminate a floodlit target to the required light distribution, the inner area of a searchlight casing contains a plurality of lamps, with different illumination characteristics, arranged on a lamp bracket held in rotary manner in the optical axis of the main concave mirror and individually pivotable into the focus of said main concave mirror.
Patent GB-2106767-A (GB)
Title: Improvements in and relating to tractor linkages
Inventor: COWELL PETER ALFRED
IPC: A01B63/114
Filed: 1982-09-24
Abstract: A plough beam 4 is coupled to a tractor chassis 1 by a three-point linkage having atop link 9 and two bottom links 3. The top link 9 is a double acting control ram 23 which has hydraulic couplings 26,28,25 and 27 which cross- couple the control ram 23 to a double acting sensor ram 21 to that expansion of one ram produces contraction of the other. The sensor ram 21 is coupled between a pivot 17 at the head of the lift rod 18 of a conventional lift mechansim for the plough, and a pivot 22 on the tractor chassis. Movement of the lift rod 18 due to height variation of the beam 4 actuates the sensor ram 21 to vary the length of the top link 9, so as to vary the pitch attitude of the plough. Good land profile following is achieved by a high rate of change of pitch at normal working depth. A lower rate of change is achieved as the plough is raised out of work. <IMAGE>
Patent GB-2109530-A (GB)
Title: Automobile headlamp
Inventor: ROL PASCAL
IPC: F21V7/09
Filed: 1982-11-11
Abstract: A headlamp for an automobile, incorporating a light source provided with a substantially cylindrical filament f, an elliptical reflector C having two foci F1, F2, one of which is located in the proximity of the filament f and the other in front of this filament, and a converging lens L the focus of which is in the proximity of the front focus of the reflector C. The reflecting surface of the reflector is modified in a critical zone Z of the reflector, this critical zone Z being defined as that capable of projecting on a standard screen, images of the filament forming a predetermined angle a at most equal to 30 DEG  with the vertical. <IMAGE>
Patent GB-2134805-A (GB)
Title: A tube pressure filter
Inventor: WALL GEORGE WILSON
IPC: B01D25/12
Filed: 1983-02-07
Abstract: The inner assembly (2) of a tube pressure filter comprises a core (6) provided with a facing (36) made up of a plurality of laths. At the end of the core (6) there is an annular member (42, 44) which is retained in position between the facing (36) and a split retaining ring (60, 62). The retaining ring (60, 62) fits in a groove (58) in the core and is locked in position by locking elements (64) which fit into aligned recesses in the retaining ring (60, 62) and the annular member (42, 44) and are secured by screws (68).
Patent GB-2130520-A (GB)
Title: Nuclear fuel transport flasks
Inventor: BURGESS MALCOLM HAYDON
IPC: G21F5/10
Filed: 1983-03-01
Abstract: A nuclear fuel transport flask has a surrounding structure 12 carrying inwardly directed heat transfer fins 13 additional to the normal outwardly directed heat transfer fins 10 on the main body 2 of the flask 1. The additional fins can be interleaved with the main fins, and the structure carrying the additional fins can either be a shroud or an open framework. <IMAGE>
Patent GB-2119169-A (GB)
Title: Thermoelectric systems
Inventor: JAYADEV TUMKUR S
IPC: H01L35/32
Filed: 1983-04-25
Abstract: Waste heat is converted into electrical energy by a thermoelectric system (10, 54) which includes a heat recovery unit (12, 56) having heat collecting fins (38, 64) and heat pipes (40, 66) for the collection and transmission of waste heat to one side of a thermoelectric device (24, 68) situated outside the flow of waste heat. The other side of the thermoelectric device (24, 68) is either water or air cooled. The thermoelectric devices (24, 68) utilized include elements (26, 28) having a thermal resistance matched to the thermal resistance of the heat exchanger to provide maximum power output. <IMAGE>
Patent GB-2125519-A (GB)
Title: Fluid flow control valve
Inventor: NORTH ALAN DAVID
IPC: E03D1/16
Filed: 1983-08-02
Abstract: An automatic flushing system, comprising a pressurized water supply 20, a cistern 12 supplied with water from the water supply, a valve 18 for controlling the supply of water from the water supply to the cistern, and a water using facility 22, 24 connected to the water supply, has the valve situated upstream of the water using facility and responsive to a demand for water at the water using facility to open to permit water to flow to the cistern. The valve comprises means defining a main flow path for supplying water to the water using facility, and means responsive to a flow of water generated in the main flow path to communicate the path with an auxiliary flow opening for supplying water to the cistern. The valve has a diaphragm (66, Fig. 2), or a bellows (126, 128, Fig. 3, or 208, Fig. 5) which opens the auxiliary flow opening on creation of a pressure drop across a venturi in the main flow path. <IMAGE>
Patent GB-2145511-A (GB)
Title: Improved heat transfer apparatus
Inventor: WRIGHT FELIX WILLIAM
IPC: F28F3/10
Filed: 1983-08-23
Abstract: A heat transfer plate for heat transfer apparatus, such as heat exchangers or evaporators is disclosed which is at least partially bounded by a groove (32) for receiving a gasket for general conformity therewith and to seal against an adjacent plate, wherein; the groove comprises an inner side wall and an outer side wall; the outer side wall of the groove is provided with a number of lateral bays (30), the gasket being formed with a number of corresponding spaced projections engaging in and matching with said bays; the base (33) of each bay is at a level other than the base (34) of the groove, and; each bay (30) does not communicate with the ambient thereby limiting movement of the gasket material along each said bay.   The embodiments of the invention have a common feature that the gasket sealingly engages the rear wall (27). This engagement limits extrusion of the gasket material along the bay of the groove and thereby prevents <<blowing-out>> of the gasket at these points. Furthermore the floor of the bay, (40) is at a level other than the floor of the groove (42). This difference in level aids engagement between the gasket and the heat-transfer plate.
Patent GB-2127335-A (GB)
Title: Improving quality of a continuously cast strand
Inventor: OKAZAKI TERUI
IPC: B22D11/12
Filed: 1983-09-23
Abstract: Improving the quality of a continuously cast strand as the strand is guided and transported along a path. A pair of upper and lower face-supporting members is brought against the upper and lower surfaces of the strand at a position along the path at least in the vicinity of the point of completion of solidification of the strand for holding the strand under a holding pressure. A quality improving pressure is further applied to the strand through the face- supporting members by a hydraulic cylinder system. This pressure prevents movements of still-molten metal near the internal crater tip and thus an internal structure free from segregations results. The face-supporting members are released from the strand after the strand has moved a predetermined distance during which it completely solidifies. The face-supporting members are carried along by the strand in its movement in the direction of transport from the position of holding to the position of releasing, the actual tractive force for strand movement being applied by other means, e.g. pinch rolls. <IMAGE>
Patent GB-2128552-A (GB)
Title: Method of decorating a surface
Inventor: SKOUHUS PETER
IPC: B44C1/26
Filed: 1983-10-14
Abstract: In a method of providing a plane, cylindrical, or conical surface of an object with one or more countersunk, dyed partial areas, the colour of which differs from the colour of the remaining parts of the surface, a self- adhesive cover film is blisterlessly adhered to the surface of the object, and each partial area which is to be countersunk and dyed is milled in a predetermined cross sectional shape, course, and extension, a dye or dyes is/are then applied to each partial area thus milled, and the part of the cover film remaining after the milling operation is removed, possibly after a full or partial drying of the dye in each milled area. Thus, an object with one or more countersunk, dyed partial areas can be produced at a high production speed and with dye applied exactly to the partial areas.