baber/WOPTO huggingface dataset:
Patent GB-1421363-A (GB)
Title: Monolithic semiconductor arrangements
IPC: H01L27/105
Filed: 1973-04-18
Abstract: 1421363 Semi-conductor arrangements INTEKNATIONAL BUSINESS MACHINES CORP 18 April 1973 [30 May 1972] 18589/73 Heading HlK A method of making a semi-conductor arrangement includes the steps of forming a layer of insulation and an overlying layer of silicon on a semi-conductor body of one conductivity type, forming a layer of silicon nitride on the silicon, etching to form windows in the nitride and to remove the silicon underlying the windows, introducing impurity into the body via the windows, and subsequently removing the nitride layer. The method may be used to form a CCD and associated IGFET in a 10 ohm cm P type silicon substrate by first providing an overall composite layer consisting of 600 Š of silica formed by oxidation at 1100-1200‹ C.; 150 Š of silicon nitride (which is required only if impurity diffusion is to follow) formed by reaction of silane and ammonia in hydrogen at 900‹ C.; 2000 Š of polycrystalline silicon containing 10<SP>16</SP> acceptor atoms/c.c. formed by disproportionation of silane at 900‹ C., the doping being provided during deposition or by subsequent diffusion; 600 Š of silicon nitride; 3000 Š of silica formed by pyrolysis at 800‹ C.; and a layer of photoresist. Optionally an aperture is provided, first in the photoresist and then in the various substrata of the layer, except possibly the lowermost silica, by use of specified selective etchants and gallium introduced through it into the wafer by diffusion or ion implantation to provide an isolation region individually surrounding the sites of the IGFET and CC device. After heating in steam to reform the oxide over this region to a thickness of 8000 Š the source and drain sites of the IGFET are likewise exposed, doped with arsenic by diffusion or ion implantation and oxide formed on them. Then the sections of the CC channel to be heavily doped are similarly exposed, and doped with 10<SP>17</SP>-10<SP>18</SP> atoms/c.c. of gallium and a 3000 Š layer of oxide 41, 42, 43 formed on them to give the Fig. 4 configuration. After removal of remaining oxide and nitride layers 15, 16 a 12,000 Š layer of photoresist is provided overall, apertured over oxide 41, 42, 43, 400-500 Š of chromium or molybdenum sputtered on at room temperature and the photoresist removed leaving the metal 48 only on the oxide. The source and drain regions are then re-exposed and aluminium deposited overall and etched back to define conductors 53-55 (Fig. 5) linking metal 48 and polycrystalline 14 on adjacent layers of insulation, and electrodes for the IGFET, one of which, 52, is extended to overlie one end of the CC channel.
Patent GB-595884-A (GB)
Title: Improvements in devices for draining umbrellas
IPC: A45B25/28
Filed: 1945-07-20
Abstract: 595,884. Umbrellas. BOSSART, A. July 20, 1945, No. 18638. Convention date, Nov. 20, 1944. [Class 134] A water-tight container 1 is attached to the stock of an umbrella to catch water draining from the cover. The upper part of the container is formed with a semi-circular fixed collar 1a, and a hinged semi-circular collar lb which is opened by a finger piece 5 to allow the insertion of the top of the umbrella and closed so as to clamp it in position. A rubber tie 6 holds the collars in open and closed position, and the collars are lined with a water absorbent resilient material such as spongy rubber. Alternatively the upper part of the container may be resilient to allow the insertion of the umbrella and is held in position by an elastic band. In a further modification a clamping device may be provided inside the container. The main part of the container may be made of any waterproof material, e.g., plastic moulding material, waxed fabric, papier-mache, thin aluminium, hard rubber, oiled silk, impregnated cotton &c. The Specification as open to inspection under Sect. 91 also describes a clamping device consisting of spring fingers 7, Fig. 5 (Cancelled), fitted in the top of the container. This subjectmatter does not appear in the Specification as accepted.
Patent GB-201375-A (GB)
Title: Improvements relating to hoods for motor and other vehicles
IPC: B60J1/08
Filed: 1922-07-07
Abstract: 201,375. A. C. Cars, Ltd., (formerly Auto-Carriers, Ltd.), and Smith, S. July 7, 1922. Hoods of the cape cart type are provided with pockets or their equivalent which extend transversely across the hood and into which side curtains can slide without folding and may be drawn into their operative position or raised beneath the outer cover of the hood when not required for use. As shown, the hood has rear side extensions and side curtains 4 are adapted to be drawn out of the transverse pocket 9 and fastened in the operative position. The pocket 9 comprises the hood 1 and lining 7, and the side curtains are normally held in the pocket by resilient means which, in the example shown, comprise a double length of rubber tubing 10 attached to the side curtains and anchored at their other end to the remote side of the hood by being passed through an aperture and embracing a wooden bobbin 11. Specification 155,889 is referred to.
Patent GB-889336-A (GB)
Title: Improvements in and relating to brushes
IPC: A46B15/00
Filed: 1959-06-01
Abstract: 889,336. Paint brushes; handles. GLASSON, R. A. May 30, 1960 [June 1, 1959], No. 18684/59. Classes 19 and 61. A brush has a handle 4 and a ferrule 1, within which the bristles 3 are secured, made from a thermoplastic polymer, the handle and ferrule being joined by fusion. As shown, a wedge 2 is inserted into the ferrule to position the bristles and the handle 4 is provided with a reinforcing block 5. The bristles which may be of a synthetic material or hog bristle are secured in the ferrule by a synthetic resin. The handle and ferrule may be made from the same polymer, e.g. polyethylene, polypropylene.
Patent GB-846133-A (GB)
Title: Improvements relating to valve gear for internal combustion engines
Inventor: HOPWOOD HERBERT
IPC: F01L1/30
Filed: 1957-06-14
Abstract: 846,133. Valve gear. NORTON MOTORS Ltd. June 4, 1958 [June 14, 1957], No. 18793/57. Class 7(6). A poppet valve is opened and closed positively by a pair of cams 17, 23, on parallel shafts 18, 22, which are geared together, one cam 17 acting directly on the valve stem through a tappet 15 whilst the other cam 23 operates through a rocker 24, and the cams and rocker being in the same plane through the valve axis. The cam shafts 18, 22 associated with each valve are geared together by pinions 19, 21, and are driven from a common drive shaft 32. The rockers 24 are pivoted on adjustable eccentrics 28.
Patent GB-659257-A (GB)
Title: Improvements in or relating to hasp fastenings secured by padlocks
IPC: E05C19/08
Filed: 1949-07-18
Abstract: 659,257. Hasp fastenings. HOBBS HART & CO., Ltd., and EDWARDS, A. E. July 18, 1949, No. 18832. [Class 44] A hasp fastening comprises a hasp bar 2 pivoted to a fixed plate 1 on one part and provided with a rotatable disc 5 apertured to receive a staple 12 secured to a base 15 rotatably mounted in a plate 17 on the other part. The disc 5 consists of two parts riveted together at 9 providing a peripheral groove 10 engaging a peripheral rib 6 of the opening in the hasp 2. The base 15 of the staple has a stepped flange engaging in a corresponding rebated periphery in the plate 17. By this means the staple is freely rotatable when the hasp is locked, e.g. by a padlock, so that an attempt to wrench the lock off merely causes the staple to turn.
Patent GB-613643-A (GB)
Title: Improvements in or relating to high frequency heating equipment
IPC: H05B6/78
Filed: 1946-06-24
Abstract: 613,643. Dielectric heating. STANDARD TELEPHONES & CABLES, Ltd., and MADDOCK, A. J. June 24, 1946, No. 18856. [Class 39 (iii)] H.F. heating apparatus comprising an electrode compartment in which the electrodes are separated by the opening of the door to the compartment, of the type described in Specification 587,361, is provided with a door 1 carried by a pivoted arm 3 mounted on a shaft 4 and having a counterweight 5. Movement of the door to the position shown in chain line raises the support 18 to which is fixed one end of a wire cable 14; this movement is transmitted by idle pulleys 17 to the upper electrode 10 mounted on insulated supports 12 and guided by vertical members 13. The other end of the wire cable is fixed to a drum 15 which may be rotated by a worm carried on a shaft 16 from outside the compartment by means of a key inserted through an opening provided for the purpose. Rotation of the drum 15 provides initial adjustment of the gap between the electrodes in the operating position to suit the size of material to be heated, while the movement of the door raises the upper electrode to facilitate loading.
Patent GB-859968-A (GB)
Title: Improvements in collapsible boxes or cases
Inventor: KAMPER ANDREW MATHIS
IPC: B65D6/18
Filed: 1958-06-12
Abstract: 859,968. Collapsible boxes. NO-NAIL BOXES Ltd. June 10, 1959 [June 12, 1958], No. 18866/58. Class 18. A collapsible box has front and back panels 4, 5 respectively hinged to side panels 6, 7 and a bottom panel 8 hinged to the front panel 4 by metal hinges extending along substantially the whole lengths of the adjoining edges of the panels, the hinges connecting the panels 4 and 6, 5 and 7 respectively having their axes or pins 16 offset inwardly of the panels 4, 5 respectively and the hinge connecting panels 4 and 8 having its axes or pin 21 offset outwardly of the panel 4 against the outer face of which the panel 8 may be folded in the collapsed state. A top panel 8 may also be provided and panels 8 and 9 provided with metal reinforcing strips 23, 24 forming channels, such as 26, to receive the edges of the panels 4, 5, 6, 7. The hinges and reinforcing strips may be formed with integral teeth with which they are attached to the panels.
Patent GB-857722-A (GB)
Title: Improvements relating to piston wear-rings for internal combustion engines
IPC: F16J9/22
Filed: 1958-06-13
Abstract: 857,722. Pistons. DAVY ROBERTSONS MASKINFABRIK A.B. June 13, 1958 [June 15, 1957], No. 18912/58. Class 122 (1). A wear ring 1 comprises a spring ring of L or T cross-section held in position in the pistonring groove 3 by the outer surface of the stem 2 being outwardly inclined to engage the undercut surface 7 of a groove 4 in a side 5 of the ring groove. The inner sides of the stem 2 and groove 4 may be parallel to the ring axis as in Fig. 4, or parallel to the outer sides as in Fig. 2, and the space between the wear ring and the bottom of the ring groove 3 may be filled with a ring 9, Fig. 4, which may urge the wear ring radially outward. A wear ring may be fitted in each side of the groove. The wear ring may be of cast iron, steel, bronze or other metal and its wearing surface may be plated with a suitable wear-resistant metal, e.g. hard chrome.
Patent GB-792011-A (GB)
Title: Production of polyesters
IPC: C08G63/83
Filed: 1954-06-29
Abstract: Polyesters derived by reacting a polybasic carboxylic acid with a polyhydric alcohol are reduced to an acid number less than 1 by heating in presence of an iron, cadmium, cobalt, lead, zinc, antimony or manganese catalyst in the form of metallic cations derived from a salt of an acid of dissociation constant not exceeding 0.05 at 20 DEG C., the catalyst being present in an amount of not more than 0.05 per cent by weight, calculated as free metal on the weight of the resulting polyester.  The metal may be added to the reaction mixture in the form of an organic or inorganic salt (especially one of the acid undergoing polyesterification) or in the form of free metal, oxide or hydroxide which reacts with the acid present in the reaction mixture.  In examples: (1) ethylene glycol is heated with adipic acid first at normal and then at reduced pressure in presence of manganese adipate, zinc adipate, antimony oxide, cobalt adipate, cadmium adipate, lead adipate or ferrum reductum; (2) ethylene glycol is similarly reacted with succinic acid in presence of cadmium succinate; (3) diethylene glycol is similarly reacted with isophthalic acid in presence of iron powder.  Terephthalic acid is also mentioned as a suitable acid.  Specification 410,837, [Group IV], is referred to.
Patent GB-120479-A (GB)
Title: Improvements in or relating to Spring Terminals for Electric Accumulators.
IPC: H01M50/552
Filed: 1917-12-24
Abstract: 120,479. Fuller Accumulator Co., and Welch, A. P. Dec. 24, 1117. Couplings.-A non- corroding spring terminal for an electric accumulator is formed by drilling or casting a tapering hole G in the lug, inserting a tapering spiral spring J in the hole and covering it by a brass cap H adapted to slide on the lug. When the cap is depressed the tapered part of the spring makes good contact with the tapered hole, and the pointed ends of the spring, which may be bent round to prevent the easy removal of the cap, are forced into intimate contact with the lug and cap, respectively. The interion of the cap in filled partly with vaseline for lubrication and to prevent corrosion. To prevent access of the electrolyte to the terminal, the lug is surrounded by a celluloid chamber A passing through the cover-plate and a tight joint between the chamber and the lug is secured by a rubber ring E on the top of which wax is poured and covered by an insulating washer F, the space above the washer being filled with vaseline.
Patent GB-385974-A (GB)
Title: Improvements relating to thermionic relay circuits
IPC: H03F1/04
Filed: 1931-07-02
Abstract: 385,974. Automatic exchange systems. HARRIS, L. H., 1, Donnington Mansions, All Souls Avenue, Willesden, London. July 2, 1931, Nos. 19086 and 22287. [Class 40 (iv).] Alternating- current power in the anode circuit of a thermionic valve is rectified or otherwise converted to unidirectional potential and used to change the grid bias of the valve. The invention is particularly applicable to signalling to telephone exchanges when the normal anode voltage available is approximately 50 volts. The Figure shows means for transmitting numbers in a telephone system by frequencies of 500, 600, 750 and 900 cycles. The amplifying valve V serves as a limiter due to the low anode voltage and to the low resistance shunt R and feeds tuned circuits L1, C1 associated with relay operating valves VI. Transformers T1 feed back through rectifiers XI to vary grid bias. The rectifiers are preferably of the dry metallic type and a second winding on the relay R1 may replace the transformers. A rectifier circuit tuned to a particular frequency may be arranged to reduce the grid negative potential while a second rectifier is arranged to increase negative potential on receipt of signals of any frequency so that the responding relay is operated only if the incoming signals are substantially wholly of the particular frequency. The voltage may be applied to a resistance instead of to a condenser in the grid circuit and full wave rectification may be obtained by a bridge or voltage doubling arrangement of rectifiers. Alternatively the condenser in the grid circuit may be shunted by two rectifiers, with the junction connected through a condenser to the anode. Voice frequency currents from a microphone may be applied to the grid circuit to operate a relay in the anode circuit when the microphone output reaches a predetermined level. The relay contacts may control a slow release relay which will thus remain operated while speech currents continue. A limiting action may be obtained by the flow of grid current, or by using grid rectification and arranging that excess signals are swamped by anode bend rectification. A number of valves in cascade may be used with an alternating input and a relay in the final output circuit, one or more of the valves being back-coupled through a rectifier or the like to change its grid potential. The first Provisional Specification describes the use of the alternating current component in the anode circuit to ensure rapid demagnetization of the electromagnetic apparatus in that circuit.
Patent GB-459451-A (GB)
Title: Improvements relating to hydraulic classifying machines for dealing with rock, ores and other substances
IPC: B03B5/62
Filed: 1935-07-05
Abstract: 459,451. Separating solid materials. TONKIN, J. C., 6, Connaught Court, Hyde Park, London. July 5, 1935, No. 19215. [Class 82 (ii)] An upward-current classifier comprises means for discharging intermittently the heavier particles, a regulatable water supply, and means by which extra water is automatically introduced while the discharge means are open. In one form the classifier comprises a conical settling tank 1 and a vertical cylindrical chamber 3 containing an apertured partition 2. The latter has a discharge pipe 5 which may receive interchangeable seatings 6 for a plug-valve 7 which is intermittently lifted by a cam 11 through a lever 10 which slides upon a flanged sleeve 9 secured to a rod 8 fixed to the valve. The current is controlled by valves 12, 13 and the extra water by valves 14, 15, the latter of which is operated by a rod 16 rocked by a tappet arm 17 carried by the shaft of the eccentric by means of a lever 18, 19. The operation of the valve 15 may be varied by adjusting the position of the arm 17 or the bar 19 or both. Several separate units of the form described may be employed or a series of chambers such as 3 mav have a common settling section.
Patent GB-884337-A (GB)
Title: Means for the generatiion and transmission of very large pulses of radio frequency waves
IPC: H01Q19/19
Filed: 1959-06-05
Abstract: 884,337. Radio transmission systems; aerials. NEW ENGLAND, UNIVERSITY OF. June 5, 1959 [Oct. 16, 1958], No. 19243/59. Classes 40(5) and 40(7). Apparatus to generate and transmit R.F. pulses comprises a circular arrangement of sets of units, together forming a tank circuit, each set consisting of a condenser C between a pair of coils L, Fig. 1; spark gaps S between adjacent sets, and charging resistors R connected to said condensers and to a source of potential, the tank circuit being so extended spatially as to constitute a magnetic dipole aerial.
Patent GB-1098621-A (GB)
Title: Voltage control equipment for d.c. generators
Inventor: KING GEORGE WILLIAM
IPC: H02P9/26
Filed: 1963-05-15
Abstract: 1,098,621. Automatic voltage control. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 31, 1964 [May 15, 1963], No. 19269/63. Heading G3R. Voltage regulation of a D. C. generator 9A is effected by controlling, in dependence upon output variations, the current through valves 1, 2 connected in parallel with a field resistor 18, whereby the current through the field winding 17 of the generator is automatically varied in a sense to maintain the output voltage constant; control of the valves 1, 2, is effected by a valve 7 having its anode connected to the grid circuits of valves 1, 2, its cathode connected to a reference tube 11, and its grid connected to the movable tapping of a potentiometer 7A connected across the output terminals 19, 20 of the generator.
Patent GB-950709-A (GB)
Title: Improvements in or relating to apparatus for the assembly of spectacles
IPC: G02C13/00
Filed: 1962-05-18
Abstract: 950,709. Apparatus for the assembly of lenses in spectacles. G. LISSAC. May 18, 1962 [June 16, 1961], No. 19328/62. Headings B4W and B4X. [Also in Division E2] Apparatus for the assembly of lenses in spectacle frames by gluing comprises a base 1 fixed to the upper end of a post 2, the base having attached thereto uprights 3 adapted for setting and securing a spectacle frame, and a slider 6 mounted in a slide on the base and carrying adjustable means for holding a lens 15 and adapted to present the lens into contact with the frame by moving the slider towards the uprights 3. The slider 6 carries a vertical threaded rod 7 on which is screwed a cylindrical piece 9 which carries a suction cup 12 having a shank 13 which is freely rotatable in the bore 11 and capable of being raised or lowered on the rod 7. Each upright 3 carries a radial supporting peg 17 and a rocking lever 22 co-operating with the peg 17 towards which it is resiliently impelled. The thrust exerted on the lever by the spring 26 may be adjusted by screwing or unscrewing the cap 25 on the upright 3. After assembly of the work, the parts of the apparatus are adjusted prior to glue being spread on the mating surfaces of the lens and spectacle frame.
Patent GB-206891-A (GB)
Title: Improvements in pneumatic hammers
IPC: B25D9/14
Filed: 1922-07-15
Abstract: 206,891. Aabacas Engineering Supply Co., Ltd., (Beche & Grohs Ges.). July 15, 1922. Power hammers.-A pneumatic power hammer of the kind in which the tup 12 is controlled by two inter-connected oscillating valves 5, 6 communicating with the pump cylinder 1, is provided with air chambers 28, 26 which can be placed in communication respectively with the upper and lower ends of the pump cylinder, and can be connected together by means of a hand-operated valve 7 to cause the hammer to run light. The chamber 26 is fitted with a non-return valve 25, whereby the air compressed in the lower end of the pump cylinder may pass through tha chamber 30, ports 31, 5xx, and 28x to the chamber 28, or by way of port 32 in the valve 6, ports 45 and 34 to the atmosphere.
Patent GB-807202-A (GB)
Title: Paving blocks for roads, aircraft runways and the like
Inventor: SCHEIDLER EDOARDO
IPC: E01C5/06
Filed: 1956-06-22
Abstract: 807,202. Paving blocks; roads. PAVIBLOC, S. A. June 22, 1956, No. 19475/56. Classes 87(1) and 107 A concrete paving block is provided with a trapezium-section projection extending along the entire length of two adjacent side faces and with a corresponding recess in the other two side faces, both the salient and re-entrant angles being rounded as at 3, Fig. 3. The top and bottom edges of the block are rabbetted at 4, 6 respectively. A modified block 8, Fig. 6, for laying against tramway rails has one face 9 shaped to correspond with the shape of an adjacent rail 10 and to allow for rail-securing bolts 11. The length of the block 8 is equal to the distance between the sleepers 12 of the track, is that the block can be secured to the sleepers by means of plates 14 fixed to each end of its lower face. The block preferably comprises two different layers of concrete, hard stone elements being embedded in the surface of the upper layer.
Patent GB-994946-A (GB)
Title: An improved central heating installation with hot water circuit for domestic use
IPC: F24H1/52
Filed: 1963-05-16
Abstract: 994,946. Finned heat-exchanger tubes. M. LEBLANC. May 16, 1963 [May 26, 19621, No. 19511/63. Heading F4S. A heat-exchanger for use in central-heating installations with hot-water circuits for domestic use comprises a primary tube D passing through a system of fins C, a secondary tube B passing through said fins in close thermal contact with said primary tube, and means for transmitting heat to said fins. Whilst passing through the fins the tubes are integrally connected, the combination being of elliptical or circular cross-section.