baber/WOPTO huggingface dataset:
Patent GB-1179660-A (GB)
Title: Apparatus for Driving a Record Medium
IPC: H02K29/06
Filed: 1968-12-13
Abstract: 1,179,660. Control of stepping motors. NATIONAL CASH REGISTER CO. 13 Dec., 1968 [20 Jan., 1968], No. 59328/68. Heading H2J. A punched tape 20 is driven in either direction by an electric motor 68 which is adapted for stepping or continuous operation. The tape has guide holes 22 co-operating with a photo-cell 24 which controls pulses to energize the stator windings of the motor sequentially. In the stepping mode, the rotor steps into alignment with each stator winding upon energization thereof, and, in continuous mode, before the rotor reaches alignment with a stator winding, a drive pulse energizes a subsequent stator winding. Switch 34 is open for operation in the stepping mode. Initially, a 0-signal is applied to terminal 40, the tape being stationary with a guide hole 22 opposite the photo-cell 24 which produces a 1-signal. The latter is inverted by unit 28 to open NOR-gate 42 which is connected to oneshot 46 through inverter 44. A pulse is applied to NOR gate 48 which produces a 0-signal for a predetermined period. For clockwise rotation, a signal applied to terminal 50 causes flip-flop 54 to provide a 0-signal at terminal 56 whereby gate 60 applies a drive pulse to the input 64 of the motor. The motor is stepped in the opposite direction when a signal is applied to terminal 52. After the guide hole has moved away from the photo-cell, a 0-signal is applied to inverter 28 until the next hole comes into co-operative relationship with the photo-cell. Stepping operation continues until the signal at terminal 40 returns to the 1-level. The switch 34 is closed for continuous operation of the motor, and, when the one-shot 46 returns to its stable state, the gate 30 has an output signal at the 1-level. When the guide hole has moved sufficiently to cause the photo-cell output to return to the 0-level the output of the gate 30 changes to the 0-level. One-shot 32 applies a pulse to gate 48 whereby an additional drive pulse is applied to the motor prior to the pulse produced when the next hole arrives opposite the photo-cell. The pulse from the oneshot 32 is also applied through gate 36 to trigger a one-shot 38 which inhibits further operation of the gates 30, 36. Due to the additional drive pulse, the next subsequent drive pulse energizes a winding one in advance of that about to be reached by the rotor. At high speeds, the oneshot 46 functions as an inverter to produce drive pulses for the motor, the gate 30 being incapable of triggering the one-shot 32. If, however, the the speed decreases so that the one-shot 46 operates as such again, the one-shot 32 is retriggered.
Patent GB-1300788-A (GB)
Title: Rotary shear for wrapping machines
Inventor: CRAWFORD DONALD CHRISTY
IPC: B26D1/00
Filed: 1970-12-15
Abstract: 1300788 Shearing webs; seaming non- metallic sheet material FMC CORP 15 Dec 1970 [2 Feb 1970] 59456/70 Headings B4B, and B5K [Also in Division B8] A web shearing apparatus, e.g. for incorporation in a wrapping machine (30), Fig. 1 (not shown), comprises a resiliently flexible shearing blade 46 and a rigid co-operating blade 44 mounted on respective shafts 34; 36, gears 37 connecting the shafts 34, 36 for counter-rotation and means 74, Fig. 12, formed on one of the blades 44 for flexing the other blade 46 as the blades 44, 46 operatively overlap, to provide a shearing pressure. The rigid blade 44 may have an enlarged portion 58 locked to its shaft 36 by set screws 60, its outer portion, formed with a shearing edge (72 , Fig. 7 (not shown), projecting through a slotted portion 64 of a lower crimping jaw 40 bored to the shaft 36. The resilient blade 46 is carried by a holder 78 screwed to the shaft 34, and projects through an upper crimping jaw 38, the blade 46 being seated against a tapered ledge (92) of the holder 78, Fig. 14 (not shown), to be angularly offset relative to the shearing edge 72, e.g. by about 1 degree. During operative rotation, the edge of the blade 46 first contacts the rigid blade 44 on an inclined cam surface 76 of the flexing means 74, the point of shearing contact moving across the blade 44, 46 as rotation continues with the blade 46 remaining in flexed condition. Electric heaters 42 are provided in the crimping jaws 38, 40 for heat sealing portions of a tubular packaging web 33 simultaneously with the cutting operation. Alternatively, Figs. 15-16 (not shown), the flexing means 74 may take the form of bevelled cam surfaces (74a) formed on the flexible blade (46a), and the flexible blade (46b) may be supported by the lower shaft (36b), Figs. 17-18 (not shown), the rigid blade (44b) leading in operative rotation. Also, Figs. 27-29 (not shown), the shafts may bear two blades, means being provided for adjusting each rigid blade (44d) radially of the shaft (36d), comprising an eccentrically rotatable pin (140) engaging in a vertical slot (142) of a positioning wedge (144) disposed below a complementary surface of the blade (44d). A notched cross cut for facilitating tearing open of a package (P), Figs. 22-26 (not shown), may be produced by attaching a triangular section punch member (122) to the central region of the rigid blade (44c), the flexible blade being formed with a complementary recess (126).
Patent GB-1270498-A (GB)
Title: Semiconductor devices
Inventor: ANANTHA NARASIPUR GUNDAPPA
IPC: H01L29/08
Filed: 1970-12-17
Abstract: 1,270,498. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORP. 17 Dec., 1970 [30 Dec., 1969], No. 59911/70. Heading H1K. A semi-conductor device comprises a P-type region, a contiguous N-type region of high resistivity, a metallic layer forming a Schottky barrier junction with the N region, and a further, low resistivity, region in ohmic contact with the other side of the metallic layer. The P- region, 109, forms the emitter region of a transistor, the N region, 106, the base, having a resistivity of from 0À07 to 5À0 # cms., and the metal layer 104, the collector. The metallic layer is supported by the further, P, region 103 of less than 0À02 # cms. resistivity, which provides a low resistivity path, via the reach-through region 108, to the collector electrode 117. The metallic layer may consist of a deposited layerof platinum or molybdenum heat treated with the silicon body to form a silicide. The base region 106 may be epitaxially deposited, and regions 103 and 109 formed by diffusion. Arsenic and phosphorus may be dopants, the body may alternatively be of germanium. A plurality of devices may be formed in a single body which is subsequently divided. In an alternative embodiment, the metal layer is deposited on an N+ layer and surrounded laterally by P + regions to reduce edge effects. Contact is made to the N + layer on the underside of the wafer.
Patent GB-1218850-A (GB)
Title: Improvements in autocatalytic copper plating solutions
IPC: C23C18/40
Filed: 1968-12-19
Abstract: 1,218,850. Electroless deposition of copper. PHOTO-CIRCUITS CORP. Dec.19, 1968 [Dec.28, 1967], No.60309/68. Heading C7F. Cu is electrolessly deposited on to e.g. sensitized insulating substrates from a solution comprising a water soluble Cu salt, a complexing agent for cupric ions, a pH adjuster, a reducing agent and 0À001-30 mgms/litre of Os which is preferably added as osmium tetroxide or potassuim osmiate. The Cu salt may be the sulphate, halide, nitrate or acetate, the reducing agents may be formaldehyde, paraformaldehyde, trioxane, 1-hydroxymethyl 5, 5- dimethyl hydantoin, glyoxal, hoxohydrides, boranes and hypophosphites. The complexing agent is the tetrasodium salt of ethylene-diaminetetraacetic acid and less than 5 gms/litre surfactants such as organic phosphate esters and oxyethylated sodium salts may be added. 0À02-0À1 mole/litre of P as organic and inorganic phosphorus compounds, up to 300 p.p. m of S may also be added. Test pieces of steel are treated in the solution.
Patent GB-1284913-A (GB)
Title: Improvements relating to material moving vehicles
IPC: E02F3/64
Filed: 1969-12-10
Abstract: 1284913 Scrapers M-R-S MFG Co and L R SIMMONS 10 Dec 1969 [20 Dec 1968] 60384/ 69 Heading E1F A material transporting vehicle comprises a scraper bowl 28 and an elevator 32 for moving the material into the bowl, the elevator being adjustably mounted on the bowl by means including at the front end of the bowl upright guides 60 which cooperate with members such as rollers 62 at the front of the elevator and drive means being provided for adjusting the elevator position. The drive means comprises cables 70 extending from a hydraulically operated retracting actuator 80. The rear end of the elevator is adjustably supported by rams 84, or the latter may be replaced by links of fixed length, Fig. 3 (not shown). In a second embodiment, Figs. 6 to 8 (not shown), the elevator front mounting includes T-shaped guides pivoted to the bowl at their bottom ends and adjustably connected by links to the bowl at their top ends whereby the guides can be moved out of the vertical. The guides are engaged by trolleys moved by hydraulic rams and incorporating springs which permit upward movement of the elevator to accommodate large pieces of material being loaded into the bowl. In a third embodiment, Figs. 9 to 11 (not shown), the elevator front mounting includes guides and trolleys, the latter being moved along the guides by hydraulic rams connected to the trolleys by lever arms pivoted on the bowl. In a fourth embodiment, Figs. 12 and 13 (not shown), similar to that shown in Fig. 1 the guides at the front of the elevator are mounted on the bowl for adjustment out of the vertical. In a fifth embodiment, Figs. 14 to 16 (not shown), the front mounting of the elevator includes upright guides cooperating with sliding blocks moved by hydraulic rams and associated with springs to accommodate the passage of large pieces of material being loaded or to stretch if the elevator is jammed in its lowered position and the rams try to raise it.
Patent GB-2000564-A (GB)
Title: Booster for vehicle braking system
IPC: B60T13/52
Filed: 1978-06-16
Abstract: A booster system for a vehicle hydraulic braking system comprises a booster assembly 2 for operating a separate master cylinder assembly 1 by supplying boost pressure to an actuating piston 16 under the control of a control valve 20. The control valve 20 is urged into an open position by an operating pressure generated in a control chamber 12 by operation of a pedal-operated input piston 7, and the boost pressure acts on the control valve 20 to urge it towards a closed position. The control valve 20 is therefore subjected to positive opening and closing forces. <IMAGE>
Patent GB-2005536-A (GB)
Title: Picture frames
IPC: A47G1/06
Filed: 1978-10-03
Abstract: An irregular picture frame has orificed fastening members 2 fixed to the back of the frame periphery. A picture 4 is secured in the frame by means of orificed fixing members 5 secured to the fastening members 2 by screws 6, which also correctly locate the picture. <IMAGE>
Patent GB-2005562-A (GB)
Title: Grinding crystalline materials
IPC: B02C19/06
Filed: 1978-10-06
Abstract: A method of grinding hard, crystalline materials comprises contacting the material with a liquid refrigerant, e.g. liquid nitrogen. injecting the material into a grinding mill, such as a fluid energy mill, and rapidly heating the material just prior to and/or while milling the material. Apparatus suitable for carrying out the method is also described. <IMAGE>
Patent GB-2034299-A (GB)
Title: Improvements Relating to Waste Disposal Systems
IPC: B09B1/00
Filed: 1978-11-17
Abstract: A waste disposal system includes an overhead conveyor (6) spanning a valley and carrying a number of tipping buckets (7). At the bottom of the valley is an air line (1) with multiple outlets (4) leading from a compressor (2). Above the air outlets is a gas collector (13) connected by a line (11) to a filter plant (9). <IMAGE>
Patent GB-2020193-A (GB)
Title: Air filter
IPC: B01D46/00
Filed: 1979-02-16
Abstract: An air cleaner assembly comprises a casing (1) for holding an annular air filter and an inlet duct extending outwardly from the casing and communicating with an aperture in the side thereof and an outlet duct (9) also extending outwardly from the casing and communicating with an aperture (12) in the base thereof, the two ducts extending parallel to each other and having a common separating wall (6) along substantially the whole of their lengths. Part of the separating wall 6 forms the base of the casing (1). The inlet duct is moulded integrally with the casing (1). <IMAGE>
Patent GB-2041904-A (GB)
Title: Defoamer for High Strength Acid Media
IPC: C01B25/222
Filed: 1979-02-19
Abstract: A defoamer for controlling the foam in high strength acid media comprises from about half its wt% of a sulfonated petroleum oil, a minor part of a C4-C20 alcohol and up to about half its wt% of a nonionic additive of the formula R-O (R'O)nR'' wherein R is hydrocarbyl, R' and R'' are hydroxyhydrocarbyl and n is 1 to about 200.
Patent GB-2024698-A (GB)
Title: Forming elements having projections
IPC: B01J19/30
Filed: 1979-06-11
Abstract: A method for manufacturing a plastics or ceramic dumped packing e.g. for use in a heat exchanger, for separating solids and liquids from gases or for carrying out chemical reactions with or without a catalyst comprises injection moulding a blank having projections 4 on at least one side, removing the blank from the mould and forming the blank into a cylinder or polygon e.g. Figure 8 with the edges 2 being joined by welding or by releasable fasteners 6. The blank may be provided either with projections 4, 5 on both sides, the projections being in the form of fins, spikes, needles or cones or with projections 4 on one side and a plain surface on the other side. The blank may also be provided with projections 16 and grooves 15 along at least one longitudinal edge. The packing may be formed of polypropylene, porcelain or stoneware. <IMAGE>
Patent GB-2046808-A (GB)
Title: Tiles
IPC: E04D1/16
Filed: 1979-06-29
Abstract: An anti-capillary device is disclosed for use at the head lap of lion two overlapping tiles at either of two amounts of overlap. The upper tile 1 has at least one rib 8 on its lower surface at its lower edge and the lower tile 2 has at least two grooves 9 at its upper surface at its upper edge. A nib 7 acts to space apart the rib 8 and groove 9 of the or each cooperating rib and groove pair. At least one rib 86 can cooperate with two different grooves 9 at respective differing amounts of overlap L1 or L2. Enables effective anti-capillary device to be formed at either amount of overlap for use on roofs of differing pitch. <IMAGE>
Patent GB-2044503-A (GB)
Title: Communications system
IPC: H04B7/00
Filed: 1979-12-18
Abstract: A multi-channel communications system comprises a plurality of remote controlled transmitters, a plurality of remote controlled receivers, and a central control unit provided with a memory, means for introducing data into the memory representative of at least one desired system status, and means for reading out from the memory the data representative of the or any one desired system status. The transmitters and receivers may be automatically controlled such that the system status represented by the read out data is established <IMAGE>
Patent GB-2067236-A (GB)
Title: Portable crossing sign
IPC: E01F9/012
Filed: 1980-01-10
Abstract: A portable crossing sign has a hollow handle (8) adapted to receive at least one battery and carries a planar sign plate (2). A pair of electric lamps (5) is mounted on each face of the plate and intermittent switching of electric current to the lamps from the battery is controlled by an electronic circuit within the handle. The control circuit may include an electronic bleeper to signal operation of the lamps. By providing flashing lamps, the sign provides a clearly visible warning with reduced drain on the battery. <IMAGE>
Patent GB-2042732-A (GB)
Title: Height Measuring Device
IPC: G01B5/06
Filed: 1980-01-22
Abstract: A height measuring device comprising a base 10 having an air bearing support, a vertical pillar 13 channel shaped in cross section and extending from the base, a counterbalanced carriage movable along said pillar, said carriage 15 having at least one probe holder 17 extending therefrom, a scale mounted on the vertical pillar and an electrical contact for the scale mounted on the carriage, the scale being mounted on the front wall within said channel and the probe holder being mounted on the carriage outside the channel at a position adjacent the front wall. The carriage may be provided with a friction drive Figures 3 and 4 (not shown) which engages a locking bar whereby the carriage may be moved along the pillar. The friction drive may be engageable and disengageable so that the carriage may be moved for coarse adjustment when the friction drive is disengaged and moved for fine adjustment when the friction drive is engaged. <IMAGE>
Patent GB-2069314-A (GB)
Title: Heels units
IPC: A43B21/20
Filed: 1980-02-12
Abstract: A heel unit (2) has a reinforcement rod (4) having at least a hollow end portion (10) with a longitudinal split (6) therein enabling the end portion of said rod to receive a fastener (14) in a force-fit, said heel unit being moulded of plastics material arranged substantially to embed the rod (4) therein and provided with a part-annular cavity (8) arranged adjacent a heel breast region (26) of the unit in the region of the end portion of the split rod, so that insertion of fastener 14 and consequential expansion or rod is less likely to split unit 2 than would be the case if no cavity 8 were provided, and yet engagement between the unit 2 and end portion of rod 4 ensures greater strength of the heel unit than would be realised if cavity 8 were fully annular. The flow of plastics during injection of the heel produces a weld line where flow streams meet.
Patent GB-2080075-A (GB)
Title: Improved Magnetic Marker
IPC: G08B13/24
Filed: 1980-07-10
Abstract: A marker includes a ribbon of magnetic signal material of relatively low coercivity having coupled thereto at least two control elements of a ferromagnetic material which may be permanently magnetized by a control signal in order to saturate the strip of first ferromagnetic material, thereby preventing the first ferromagnetic material from generating higher order harmonics when interrogated by a periodic magnetic signal of fundamental frequency.
Patent GB-2060811-A (GB)
Title: Heat exchange fluid conducting strip
IPC: F24S10/70
Filed: 1980-08-15
Abstract: There is disclosed an extrusion (16) in the form of a fluid-conducting strip of flexible synthetic rubber having an undersurface opposite a radiation-receiving surface and comprising     i. a plurality of spaced parallel hollow tube portions (18), ii. a plurality of web portions (19) joining respective pairs of said tube portions, and iii. the cross-section of the extrusion being such as to permit the web portions to be torn free from the hollow tube portions.   The tube portions (18) may be connected to manifolds (28, 29). <IMAGE>
Patent GB-2057522-A (GB)
Title: Carding machine
IPC: D01G15/26
Filed: 1980-08-21
Abstract: The invention relates to a carding machine comprising a first rotating roller (23) provided with saw tooth clothing and mounted between the taker-in (14), the flats (24) and the carding swift (19), with its axis parallel to these members, and a second rotating roller (18) provided with saw tooth clothing and mounted in the lower part between the taker-in and carding swift, with its axis parallel to the carding members. The two rollers are adjustable independently in a horizontal plane and in a vertical plane, and they rotate at a speed much less than the speed of the taker- in and carding swift, in the same or opposite direction to this latter. Profiled elements (35, 36) are provided inserted in the spaces (33, 34) between the two rotating rollers (18, 23), the taker-in (14) and the carding swift (19). Before being conveyed from the carding swift to the flats, the fibres are taken up by the two rotating rollers and taker-in respectively, and are thus given a perfect opening, mixing and parallelisation. <IMAGE>
Patent GB-2086088-A (GB)
Title: Boiler control
IPC: F24D19/10
Filed: 1980-10-16
Abstract: In a central heating installation having a boiler 2 heated electrically or by a burner 3 and suppling water to radiators in one or more heating zones (under the control of motorised valves M1a etc.) and preferably also to a hot water storage cylinder, the boiler thermostat T4 is rendered ineffective when no heat is demanded by any of the zone thermostats T1a etc. or by a storage cylinder thermostat, to prevent undesired rapid cycling of the boiler. The arrangement shown uses a valve V supplying a burner 3 of the boiler 2. The valve V is controlled by a thermostat T4 located in boiler 2, and supplied via parallel relays RLP and RL2. RLP becomes conductive when any one of a plurality of pairs of on-off switches SW1a etc. and thermostats T1a etc associated with respective zones to be heated are closed, while RL2 will supply current to T4 when a thermostat in a domestic hot water cylinder is closed and will also open motorised valve 8 in a pipe 4, 7 from the boiler 2 to the cylinder. When RLP is closed and supplies current to thermostat T4, it also actuates a pump P to circulate water from boiler 2 through the central heating installation. When RLP and RL2 are both 'off', valve V is closed and burner 3 extinguished whatever the temperature of water in boiler 2. When either or both RLP and RL2 are 'on', valve V opens and closes, igniting or extinguishing burner 3 in response to the control of thermostat T4. <IMAGE>
Patent GB-2065503-A (GB)
Title: Safety fuel admixture apparatus
IPC: B01F7/00
Filed: 1980-11-21
Abstract: Apparatus for admixing dispersion inhibitive polymer into liquid hydrocarbon fuel and comprising a polymer supply hopper 10 mounted on a fuel feed tube 11, 13 and a rotary mill 14 having a cutting edge for cutting swarf from the polymer and a duct for conveying the swarf to the interior of the tube. The swarf is further comminuted by beaters 17 rotating with the mill 14. <IMAGE>
Patent GB-2064163-A (GB)
Title: Electro-Optical Cable
IPC: H01B5/10
Filed: 1980-11-28
Abstract: An electro-optical cable, suitable for use as an overhead conductor which is required to carry one or more optical transmission channels, consists of a plurality of conducting wires 1,2,3, constituting a single stranded conductor, helically wound and closely packed around an optical cable 1, with an outer sheath if required. The optical cable 1 includes one or more optical fibre units, each consisting of one or more optical fibre waveguides 5, loosely disposed in a polymeric tube 6, the unit(s) being helically wound around a central elongate strength member 8 and surrounded by an extruded sheath 9 of polymeric material of sufficient elasticity to enable the sheath to stretch to the same extent as the stranded conductor. Additional strength members 7 may be included in the optical cable, helically laid with the optical fibre units and/or embedded in the tube walls 6, and the tubes may be filled with a thixotropic fluid. <IMAGE>
Patent GB-2091996-A (GB)
Title: Improvements in or relating to baths
IPC: A47K3/00
Filed: 1981-02-03
Abstract: This invention relates to baths and particularly to a lid or cover therefor to enable the bath water heat to be contained and for the purpose of privacy in certain circumstances. The cover comprises a panel 1 with hinge means along one edge at 3 to enable the cover to be hinged to a wall adjacent the bath 2 or the bath itself, and has cut- outs 4 and 7 to be beneath the bath taps 5 and 6 at one end and to fit around the bath occupant at the other end, respectively. Two or more panels may be arranged in a framework: one being fixed and one or more being slideable in the framework which may be channelled for this purpose.