baber/WOPTO huggingface dataset:
Patent GB-974062-A (GB)
Title: Improvements in or relating to mains/battery operated electrical apparatus
Inventor: MARSDEN ERNEST WILSON
IPC: H01H15/10
Filed: 1962-04-05
Abstract: 974,062. Radio-receiver converter arrangements. E. K. COLE Ltd. April 4, 1963 [April 5, 1962], No. 13066/62. Heading H3Q. [Also in Division H2] In a radio receiver which may be changed from battery operation to mains operation by means of a switch the receiver mains plug or socket is covered by a screen connected to the movable element of the switch when the receiver is battery operated and the rear wall of the receiver is locked in position by a member carried by the movable element of the switch when the receiver is mains-operated. A metal bracket 1 forms the end walls and base of a housing for switch contacts 2, 3 which co-operate with contact maker 4 having projections 4a during operation, which contact maker 4 is biased to the right by spring 11 so that it abuts a projection 18 of switch-actuating plate 12. The plate 12 is held in position in two guides 13, 14 in a bracket 15 having walls 15a, 15b, bracket 1 being secured to wall 15a and a wall 25 of the receiver cabinet being secured to wall 15b. When the switch is in the position shown in the Figures, terminals 7, 8 connected to the battery supply circuit are connected by contact 2 and the plate 12 covers the aperture in bracket 15 through which a mains socket may be inserted when the receiver is operating on the mains supply. In order to change over from battery the mains supply projection 19 attached to plate 12 is moved to the left, causing contact maker 4 to move to the position in which terminals 9, 10 connected to the mains supply circuit, are connected through contact 3, and a mains socket is inserted in the unobscured opening in bracket 15 to cooperate with the mains plugs 23, 24. At the same time projection 19 moves over the back wall 26 of the cabinet and locks it in position.
Patent GB-467698-A (GB)
Title: Improvements in landing headlamps for aircraft
IPC: B60Q1/26
Filed: 1936-05-08
Abstract: 467,698. Mounting reflectors, lenses, and electric lamps in aircraft lamps. PINTSCH AKT.-GES., J. May 8, 1936, No. 13069. Convention date, June 26, 1935. [Classes 75 (ii) and 75 (iv)] In an aircraft landing-headlamp emitting a light beam adjustable independently of the lamp casing 10, which' is shaped to offer minimum air-resistance, the optical system, which consists of a mirror 2 and lens 3 with a common focus 4, is mounted on ball and socket bearings 11, 12 so as to be pivotal about the common focus. The light source is at the common focus. Adjustment is obtained by two wedge-shaped rings 16, 17 which are in contact with surfaces on parts 8, 18a which are fixed respectively to the parts 11, 12. The rings 16, 17 are relatively rotatable, or may be rotated together. Initial coarse adjustment is obtained by adjusting a spherical surface on the part 8 relative to a correspondingly shaped part 9 attached to the casing 10, and riveting the parts together. The reflector is held against an abutment ring 15 on the carrier 12 by an annular spring 14. A spider 19 which carries the lens 3 is attached to a ring 18 by bayonet joint connections, and the ring 18 screws onto the ring 18a. The socket 7 of the lamp bulb 1, which has a reflecting zone, is adjustable axially, by a screw 5, in a guide which is attached to the part 8.
Patent GB-1122095-A (GB)
Title: Fired refractory articles
Inventor: WOODHOUSE DENNIS
IPC: C04B35/01
Filed: 1966-03-24
Abstract: A refractory composition comprises a fine fraction of dead-burnt magnesia (i.e. such that at 90% passes through a 72-mesh B.S. sieve) having a SiO2 content of at least 2% by wt. and a CaO content of less than 2% by wt. a coarse fraction (90% retained on 72-mesh sieve) of dead-burnt magnesia having a SiO2 content of less than 1% by wt., and a chrome ore having a SiO2 content of less than 2.5% by wt.  The composition may be shaped and fired at a temperature less than 1700 DEG  C. to produce a fired refractory brick having a silica content of less than 3% by wt.  The fine fraction of dead-burnt magnesia may be present in amount 28-35% by wt. of the composition, and the proportion of total magnesia to chrome ore in the fired refractory may be from 90:10 to 60:40 by wt.
Patent GB-1219986-A (GB)
Title: Improvements in or relating to the production of semiconductor bodies
Inventor: KERWIN ROBERT EUGENE
IPC: H01L21/00
Filed: 1968-03-19
Abstract: 1,219,986. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. 19 March, 1968 [27 March, 1967], No. 13203/68. Heading H1K. A mark 16, 17 of Si is provided over an insulating layer on a semi-conductor substrate 10, and at least a portion of the insulating layer exposed through the mask is etched away. Impurities are then diffused into the exposed substrate areas, using the Si mask 16, 17 as the diffusion mask, and into the Si mask itself. The embodiment comprises an I.G.F.E.T. formed in a p-type monocrystalline Si substrate 10 having a (111) upper face. Layers 13, 14, 15 respectively of SiO 2 , Si 3 N 4  and SiO 2  are formed conventionally over the entire substrate, and a channel is etched through the upper oxide layer 15 only using a photo-resist technique with ammonium bifluoride as the etchant. A polycrystalline layer 16 of Si is deposited over the surface of the layer 15 and in the etched channel, and a photo-resist etching technique is again used to remove part of the Si layer 16 at each edge of the channel while leaving a central strip 17 centrally disposed within the channel (see Fig. 2 (7), not shown). The exposed part of the SiO 2  layer 15 and the subsequently exposed portions of the layers 13, 14 are then etched away, and boron is diffused in to form p-type source and drain regions 11, 12. The layer 16 of Si is also etched to the desired shape. If the substrate-is p-type, an n-type diffusant such as phosphorus is used. Diffusion also occurs into the polycrystalline Si layer 16, 17 rendering it conductive to form source, drain and gate electrodes. The device may at this stage be annealed at 300‹ C., and finally layers 18-20 of Au or Al are applied to facilitate contact to the various electrodes. Alternative materials for the insulating layer or layers are aluminium oxide or nitride, beryllium oxide, or a mixture of these compounds. The invention may be applied to any type of device requiring an electrode/insulator/semi-conductor configuration, an example being a vidicon target comprising an array of photo-sensitive diodes passivated by an insulating layer which is covered with a conducting layer to dissipate charge in the insulation.
Patent GB-243992-A (GB)
Title: Apparatus for reproducing the front or back outline of the human foot
IPC: A43D1/00
Filed: 1925-05-21
Abstract: 243,992. Stegm³ller, R. May 21, 1925. Boots and shoes, measuring for.-A device for reproducing the front or back outline of the foot consists of adjustable ribs 2 slidable in a base frame 1 and carrying screws 3 adjustable to the foot. The ends of the screws may carry steel bands 5. The height of the heel is indicated by an ad. justable number of prismatic parts 6. The base plate is divided longitudinally so that one half carrying the profile ribs may be applied immediately to a recording surface.
Patent GB-378046-A (GB)
Title: Improvements in or relating to draining trays
IPC: A47L19/04
Filed: 1931-05-05
Abstract: 378,046. Draining appliances for kitchen use. ADAMS, R. G. and ADAMS BROS. & BURNLEY, Ltd., Harrow Sheet Metal Works, Harrow, Middlesex. May 5, 1931, Nos. 13275 and 25089. [Class 28 (ii).] A draining tray for attachment to a sink comprises a metal plate 1 having upturned side flanges 2, 3 and longitudinal draining grooves 10 leading to apertures 9 in an abutment plate 5 which prevents the crockery &c. from slipping. The front edge 4 of the plate 1 is turned down and secured by beading 6 to the abutment plate 5 which has ears 8 riveted to the side flanges. The downturned flange 4 engages the inside of the sink, the outside being engaged by triangular shaped brackets 11 adjustably secured at 13, 14 to the side flanges 2, 3 and joined together by a channel bar 15 riveted at 16 to flanges on the brackets. The rear ends 17 of the side flanges are turned over to avoid sharp edges, and the upper edges of the flanges 2, 3 and the plate 5 are beaded over a wire 7. In a modification, Fig. 2, the abutment is formed by a wire 19 retained in holes in the side flanges and having a downturned U-shaped portion 19b which resiliently engages the underside of the plate 1. The triangular brackets 20 are riveted or bolted to the side flanges 2, 3, rubber, leather, or like washers 23 being used to prevent injury to the enamel faces. The underside of the sink is engaged by hook-shaped members 25 adjustable along slots 27 in the brackets 20 and having rubber sleeves 28 thereon to prevent injury to the sink. In a further modification employing bracket's 20 and hooks 25 for attachment to the sink, the abutment 19 is replaced by a strip riveted to the side flanges and extending to the level of the plate, the drainings escaping beneath the strip through the corrugations 10. The crockery is held in a rack, Fig. 4, permanently or detachably secured to the draining plate and comprising a metal sheet bent to an M-shape and slotted to form transverse bars between which the plates &c. are positioned. The rack is preferably positioned so that the face 33a abuts against the stop 5 or 19.
Patent GB-960666-A (GB)
Title: Electrically operated liquid level detector
Inventor: AUDSLEY ALAN KEITH
IPC: G01F23/24
Filed: 1962-04-06
Abstract: 960, 666. Automatic liquid level control. CANDY FILTER CO. Ltd. March 22, 1963 [April 6, 1962], No. 13395/62. Heading G3R. In a system in which an electrically operable control relay is connected to electrode means in a conducting liquid so that the relay is energized when the liquid is at one level and de-energized when the liquid is at another level, the relay armature, if it is in the "energized" position between levels, is maintained in that position if the electric supply is interrupted, even momentarily. With the circuit as shown, rise in the level of an electrically conducting liquid in a drain pit 2 can occur until a circuit is completed between electrodes 8, 11 so that winding 13 of a relay 1 is energized from a mains source 4 through a step-down transformer 3 and a rectifier 5. Armature 17 of relay 1 is then attracted to start a pump to empty the pit. Contacts 18 of relay 1 also close to connect a further electrode 21 to electrode 11 so that relay energization is maintained until the liquid level is reduced below electrode 21. The core of relay 1 has sufficient residual magnetism so that, if the mains supply fails, the pump does not cease operating. Contacts 15 are also closed when relay 1 is operated and the consequent energization of opposing relay winding 14, though insufficient to cancel the effect of winding 13, ensures the release of relay 1 when the liquid level falls below electrode 21. Connection to an electrically conducting container instead of electrode 8 and operating an alarm instead of a pump, are referred to.
Patent GB-542422-A (GB)
Title: Improvements in aircraft
IPC: B64C11/14
Filed: 1940-08-24
Abstract: 542,422. Aero-engine accessories. CONSTANT SPEED AIRS CREWS, Ltd., and MARSHALL, F. G. Aug. 24, 1940, No. 13422. [Class 4] In aircraft having forwardly extended airscrew shafts and in which the distance between the spinner and the engine cowling or housing or the edges of the wings exceeds the usual distance, the gap therebetween is wholly or partly closed by means of a detachable fairing, fixed relatively to the spinner or rotatable therewith, capable of being secured in and removed from its position of use without dismantling the airscrew. In the form shown, the gap between the spinner 4 and the cowling 6 is wholly closed by a fairing 6 fixed to the bearing 9 of the extended airscrew shaft 2 by means of diaphragms 7. The latter are detachably connected at their outer peripheries with the fairing preferably by a connection comprising a series of pins 10 on an annular flange of the fairing which engage with apertures 11 in the diaphragm and are locked by means of a ring 12, provided with key-hole slots the narrow parts of which engage with annular grooves 10a around the free ends of the pins when the locking ring is turned in one direction. Rotation in the reverse direction brings the large ends of the key-hole slots into register with the pins to allow of their disengagement. The fairing is made in two or more longitudinal sections, hinged together if desired. The connecting edges of the sections are detachably united by the connecting means described. In a modification described, the fairing is arranged to rotate with the spinner by connecting the diaphragms directly to the extended airscrew shaft. The diaphragms may be replaced by spoked members of the kind described in Specification 537,451. Resilient devices may be interposed between the fairing or its supports and the attachment base therefor preferably as described in Specification 536,000. Specification 451,553 also is referred to.
Patent GB-331968-A (GB)
Title: Improvements relating to windows with sash or case frames
IPC: E06B3/44
Filed: 1929-05-01
Abstract: 331,968. Jarman, J. A. May 1, 1929. Fastenings and holders for sliding windows. - Racks of corrugated metal strip 2, are let into recesses in the vertical members 1 of the sliding sashes and engaged by spring- pressed ball catches 3 secured in the fixed members 4 of the frame casing, within which are mounted locks 5 the bolts 6 of which, when shut, also engage the racks. The catches 3 retain the sashes against accidental movement and the bolts fasten the sashes in any position. The lock bolts are shot by spindles 7 the outer ends of which receive a suitable key inserted in apertures 8 in the frame members 9. The above devices may be provided at one or both sides of each sash.
Patent GB-860397-A (GB)
Title: Surgical needle
IPC: A61B17/06
Filed: 1958-04-29
Abstract: 860,397. Surgical needles. AMERICAN CYANAMID CO. April 29, 1958 [May 6, 1957], No. 13542/58. Class 112 A curved surgical needle comprises a point 11, a tapered portion 12 having a cross-section bounded by the arcs of two circles having opposite curvature relative to each other which intersect at included angles of between 30 degrees and 80 degrees to form cutting edges 17, a smoothly faired transition portion 13, a portion 14 of circular cross-section which may have flat areas 15 for a needle holder, and suture attaching means 16. The distance between the cutting edges 17 of a transverse Section of the tapered portion 12, is proportional to between the <SP>2</SP>/ 3  and <SP>1</SP>/ 3  power of the distance of that section from the point 11. The periphery of the needle at the rear of the tapered portion 12 is at least equal to that of the portion 14 of circular cross-section, while the cross-sectional area at the rear of the tapered portion 12 is less than that of the portion 14 of circular cross-section. The needle is manufactured from smooth round wire, preferably an annealed soft steel wire, by a stamping operation and bent to its final shape either before or after tempering. In an alternative arrangement the suture attaching means comprises an eye.
Patent GB-766539-A (GB)
Title: Improvements in or relating to agricultural machinery
IPC: A01B39/18
Filed: 1953-05-14
Abstract: 766,539. Rotary hoes. MUNNS, G. W. May 14, 1954 [May 14, 1953], No. 13563/53. Class 6(1). In a hoeing or like machine, a plurality of rotary blade units separately driven from a common power source are so supported from a main frame C as to be separately pivotable about a common axis 42 in front of the units, and a subsidiary frame 26 supporting the rear ends of the units is also pivoted about the same axis 42 so that the units can be swung up or down together, from or to their operative positions. Each unit is carried by a pair of arms 18 pivoting about bosses which encircle a shaft 42. The bosses are attached to links 48 which are releasably clamped to a rigid bar 45 on the frame, so that the spacing of the units is adjustable. A bar 21, rod 22, and springs 23, 24 resiliently connect the rear of each unit to the frame 26, which is lifted and lowered by actuation of the lever 28 and linkage 31, 32. Each unit comprises two parallel discs 10 each carrying inwardly extending blades 13 which overlap the blades on the other disc. The discs are carried by separate shafts one of which is hollow so that the other can slide into it to enable the spacing of the discs to be adjusted. They are held in the adjusted position by a set screw or by a nut which is tapered internally and screws on to the tapered, split end of the hollow shaft. The shafts are rotatably supported in side plates 14 which have overlapping horizontal extensions at the top. The spacing of the plates is adjustable. The arms 18 and bars 21 are connected to these plates. The blade units are staggered in two transverse rows, and are separately driven from the shaft 42 through chains and sprockets. The machine may be mounted on a tractor by a suspension which allows limited lateral movement of the machine so that it may be guided along a predetermined course. The suspension, Fig. 3, includes a channel-shaped transverse beam 51 supported on the tractor by brackets 52, struts 57 carrying a shaft 55, and yokes 53, 56 connecting the shaft 55 to the tractor at 54 and to trunnions 58 at the ends of a channel-shaped transverse beam 61 which forms a track for rollers 60. A transverse beam 62 of H-section is suspended from the rollers 60, and is connected by trunnions 63 to brackets 64 on the machine frame C. At the front of the frame rollers 68, 70 with horizontal and vertical axes transmit thrusts to the beam 51. A pair of bars 72, joined at the rear by a transverse handle bar 74, are pivoted at 71 to the beam 51 and at 77 to the frame C, so that by manual lateral movement of the handle bar the frame C and with it the blade units can be moved laterally relatively to the tractor.
Patent GB-995553-A (GB)
Title: Device for holding workpieces on a machine-tool table
IPC: B25B1/22
Filed: 1962-04-09
Abstract: 995,553. Vices. H. BUTIN, and R. DELESMONTEY. April 9, 1962 [Dec. 2, 1961], No. 13591/62. Headings B3B and B3C. . A work-holding device for a machine tool having a grooved table, comprises a vice rotatable about the vertical axis of a pivot located in a groove on the machine table, and a removable element attached to the table which co-operates with means on the vice base to adjust the angular position of the vice in relation to the table. The removable element may be a block B having a vernier 9 with the scale 8 on the vice base 3 provides means for the angular setting of the vice E. Alternatively, a removable stop 10 located in the groove 4 is adapted to co-operate with a projection 11 on the base, angular displacement being effected by inserting gauges 13 between the stop 10 and projection 11. In another embodiment (see Fig. 4), a micrometer dial gauge may be used in conjunction with bores in the vice base and a fixed position on the machine to provide the angular setting of the vice. The vice may also be provided with means for angular pivoting about a horizontal axis (see Fig. 6), by means of a screw and nut mechanism or by the insertion of wedges between the vice base and a stop on the upper part. The fixed jaw of the vice may be provided with a groove for a machine gauge.
Patent GB-1460634-A (GB)
Title: Methods and apparatus for spatial separation of electrid fields
IPC: H01J1/52
Filed: 1974-03-27
Abstract: 1460634 Mass spectrometers EXTRANUCLEAR LABORATORIES Inc 27 March 1974 [30 March 1973] 13626/74 Heading H1D At the entrance and/or exit of a quadrupole mass spectrometer the ion beam passes through a body or group of bodies made of a material which is a dielectric to high frequency fields in excess of 1000 Hz and a conductor to D.C. or low frequency fields up to 1000 Hz. The single body can be a tubular cylinder, Fig. 2, or a funnel, Fig. 3 (neither figure shown), which may terminate inside or outside the interelectrode region. An example of a group of bodies 42 is shown in Fig. 5. Suitable materials are ferrites, such as a carbon-nickel-zinc ceramic, or a dielectric substance having a very thin (less than skin depth for the operating frequency) conductive coating. The separation of high and low frequency fields in the fringe field region is said to improve the transmission of the spectrometer.
Patent GB-811411-A (GB)
Title: Process for the production of a tissue culture fluid containing infectious hepatitisvirus and a killed vaccine therefrom
IPC: C12Q1/70
Filed: 1957-04-29
Abstract: A process for producing an aqueous tissue culture fluid containing a high concentration of live infectious hepatitis virus, which may be used to make a "killed" virus vaccine or a serum, or to test gamma globulin preparations, comprises inoculating a tissue culture of the Detroit-6 strain of epithelial-like cells or embryonic cells from non-infected human sources with infectious hepatitis virus, incubating the inoculated culture at a temperature between 30 DEG and 42 DEG  C. until the cell monolayer becomes disrupted and aggregates of small dark granular cells having the chromatin in the marginal position appear and then separating the fluid from the solid material present in the culture.  The resulting aqueous tissue culture fluid may be subsequently treated with formaldehyde, phenol, b -propiolactone, chlorine, ultra-violet light or combinations of these so that the infectivitity of the virus is destroyed whilst retaining a high antigenicity, thus producing a "killed" infectious hepatitis virus vaccine.  This vaccine further may be injected into monkeys or rabbits and a serum obtained in known manner.  Suitable ambryonic cells to be used in the initial process are those obtained from embryonic argons such as testicles, ovaries, liver, lung, spleen, kidney, skin or intestines.  One example is the strain of spindle cells from human embryonic testicle known as PD39T.
Patent GB-497324-A (GB)
Title: Improvements in road traffic control systems
IPC: G08G1/08
Filed: 1937-05-14
Abstract: 497,324. Road signals for controlling traffic. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., DOWNES, F. A., and RIDDLE, H. J. N. May 14, 1937, No. 13668. [Class 118 (ii)] In a vehicle-actuated system in which the maximum green period is variable in accordance with the traffic flow and is determined by the time taken for a condenser to charge or discharge, the charge on the condenser is adapted to be decreased or increased by each operation of the traffic responsive devices so that the maximum period is increased by each operation up to a limiting period. As applied to the system described in Specification 408,706, the maximum green timer comprises neon tube M, relay MT, condenser QB and discharge resistances A, B. Upon the right of way passing from one road to the other, relay CO (not shown) operates causing the reservoir, transfer and timer condensers QNR, QNT and QB to change. When a demand is entered from road " B " (as shown), relay DE operates and completes the timer circuit. A vehicle, actuating a pad in road "A," causes relay RWM to operate so that a small charge passes to condenser QB, thus extending the time taken for it to discharge sufficiently for tube M to flash. The maximum period cannot be extended indefinitely as condenser QNR is isolated from the supply. Specification 427,832 also is referred to. Reference has been directed by the Comptroller to Specification 457,121.
Patent GB-580700-A (GB)
Title: Improvements in charge-mixing devices for internal combustion engines
IPC: F02M1/00
Filed: 1944-07-18
Abstract: 580,700. Charge-mixing devices. LANGTON, W. E. July 18, 1944, No. 13678. [Class 7 (ii)] A gasket c incorporating two or more gauze screens a, b, of different mesh is inserted between the carburetter and the induction pipe, one screen extending completely across the pipe whilst the other, which is of finer mesh has a central aperture b<1>. The screens may be convex or concave.