baber/WOPTO huggingface dataset:
Patent GB-1234294-A (GB)
IPC: H01L29/74
Filed: 1968-08-06
Abstract: 1,234,294. Semi-conductor devices. R.C.A. CORPORATION. 6 Aug., 1968 [21 Aug., 1967], No. 37460/68. Heading H1K. In a bidirectional switch of PNPN structure having its three electrodes so disposed that it behaves as a gate controlled PNPN switch when the centre junction is back biased and as a forward conducting PN diode when the junction is forward biased the anode or cathode electrode contacts the appropriate outer zone and a surrounding heavily doped surface portion of the adjacent zone. The embodiment (Fig. 3) is produced by first diffusing boron from a coating of boron nitride into an oxide masked N type silicon body to produce P zone 34 and P+ zone 36. After remasking phosphorus is diffused in from phosphorus pentoxide vapour to provide annular N+ zones 46, 48, and zone 46 then isolated by a groove 53 formed by photoresist and etching steps. Finally copper electrodes 56, 58 are attached to nickel plated layers to form gate and cathode respectively and the other face of the wafer soldered to anode 60 forming part of an encapsulation. The central area in this device constitutes the switch and the periphery the diode.
Patent GB-1239715-A (GB)
IPC: G01D5/30
Filed: 1970-03-04
Abstract: 1,239,715. Photo-electric measurement of displacement. ERNST LEITZ G. m. b. H. March 4, 1970 [March 10, 1969], No. 10305/70. Heading G1A [Also in Division G2] The angular or linear displacement of an object with respect to the optical axis of a measuring optical system is sensed by a differential photo-electric and amplifier arrangement. A slit-shaped beam of light is directed Onto a reflector 7, attached to the object under in vestigation, split by a prism 10 and the two split beams detected by either two photo-diodes 14, 16 or a single one arranged to receive the beams alternately. The detector outputs feed a differential amplifier 20 coupled to a meter, and also a summing amplifier which controls either the gain of the differential amplifier, or the lamp supply 25, to compensate for variations due to ageing of the lamp, reflector 7 surface variations, etc. When the angular displacement x is to be determined as in Fig.1, a plane reflector 7 is used, and when a linear displacement an objective lens plus convex mirror or a concave mirror alone, replace objective 6 and reflector 7, Fig.3 (not shown). Angular displacements of an object may be compensated for by retroactive control. The lens 6 plus mirror 7 represent an autocollimation system. A fibre optic coupling between lamp 1 and lens 2 may be provided. Beam divider 5 may be a polarizing prism, there being a#/4 plate or Faraday cell to rotate the plane of polarization through 90 degrees, in the path between prism and reflector 7. The summing amplifier output is maintained constant by reference to a level provided by resistor 26.
Patent GB-1250341-A (GB)
IPC: C09D5/08
Filed: 1968-11-15
Abstract: 1,250,341. Coating metallic surfaces. A. KLINGLER. Nov. 15, 1968 [Nov. 15, 1967], No. 54405/68. Heading C7U. A composition for use in the first stage of applying a corrosion-resistant coating to a metal comprises (a) a mixture of H 3  PO 4 , at least one from Fe 3 O 4  and MnO 2 , and at least one pulverulent metal from Al, Zn, and Cu, (b) an oil-modified alkyd resin (c) a hydrophilic bonding agent swellable in water selected from talcum, bentonite, gypsum, and lime, and (d) a mixture of organic solvents of different volatilities comprising at least two of methylethyl ketone, acetone, isobutylketone, xylene and white spirit; components (a) and (b) being so selected in relation to one another that they together form insoluble compounds which firmly adhere to the metal surface. Iron, which may be at least partially oxidized, is treated with the above composition, which is allowed to harden; a layer is then applied of a second coating composition which differs from the first coating composition and is such that it causes a surface swelling of the applied layer thereof, the second coating composition comprising a filmforming mixture containing at least one solvent in common with component (d) above, and this layer is allowed to harden. The second composition may be a solution or suspension of an epoxide in an organic solvent, and may include a gloss-former, dyestuff, or pigment. A twopart pack for use in the above process is described and claimed.
Patent GB-1250799-A (GB)
IPC: B65B49/14
Filed: 1968-12-30
Abstract: 1,250,799. Wrapping articles. CERTIPAK CORP. 30 Dec., 1968 [8 Jan., 1968], No. 61590/68. Heading B8C. A method of tightening a wrap-around blank B about a group of receptacles 11 prior to the connection of the end portions of the blank underneath said group to form a partially overlapped bottom and complete a package, employing a blank B having apertures formed in zones between its side and bottom panels, through which apertures rim portions of the receptacles project, such apertures being formed, at least in part, by cuts defining tongues, which tongues are integral with, and aligned with, the bottom panels folded under the receptacles, each tongue being disposed at an angle with respect to the respective zone of the blank, the method comprising the steps of entering the blank and the receptacle group between converging edges of a pair of blades, which edges engage the blank between the apertures and engage the upper surfaces of the tongues, the blades extending under the protruding rim portions to lift the receptacles with respect to the tongues, and advancing the blank and receptacles in the direction of convergence of the edges of the blades. A device for carrying out the method comprises a pair of conveyers 26, 27 fitted with lugs 28, 29 which will move both a group of the receptacles 11 and the blank B which has previously been placed thereover. The receptacles are supported by and slide on a central track 30 and they are laterally guided by rails 31 of L-shaped cross-section. The side panels of the blank are folded down the sides of the group of receptacles and the bottom end panels are folded underneath the group (by means not shown) and the movement of the group and blanks by the conveyer causes the side panels to be engaged by the blades 32 and 33 which are fixed and have outwardly flared entrance portions so that the movement of the receptacles and blank relative to the blade causes the blade to progressively tighten the blank around the receptacle and at the same time lifting the receptacles off the track so that the blank is pulled downwardly with respect to the receptacles thereby reducing slack at the top and sides of the blank; as the blank slides off the ends of the plate it is engaged by a pair of wheels 40 each having a large diameter flange portion 41 and a smaller diameter V groove 42 the wheels engaging the tongues and additionally tightening the blank around the receptacles. The blank when provided with locking tongues has the tongues engaged in corresponding slots whilst the blank is held by the wheels and a rotary tucker 43 mounted on a horizontal shaft 44 engages the locking tabs and enters them into their slots; immediately thereafter the package moves on to short horizontal rails 45, 46 and is carried away by a conveyer 47. If desired the bottom panels can be connected by adhesive or by stapling instead of by locking tabs and the wheels 40 can be omitted in which case the bottom end portions of the blank are joined together at the position of maximum tightening of the blank by the blades.
Patent GB-1259037-A (GB)
IPC: B01D3/16
Filed: 1969-09-24
Abstract: 1,259,037. Gas/liquid contact tray. UKRAINSKY NAUOHNO - ISSLEDOVATELSKY I KONSTRUKTORSKY INSTITUT KHIMICHESKOGO MASHINOSTROENIA. 24 Sept., 1969, No. 46928/69. Heading B1R. A tray for a gas/liquid contact column comprises a plurality of lower units 2 disposed within openings in the tray arranged in rows, as e.g. shown in Fig. 1, each unit 2 comprising pivotally mounted plates (3) (Figs. 2 and 3, not shown) movable from a closed overlapping position by the pressure of upwardly flowing gas to a position providing slit-like passages for the gas, baffles 7 being provided on the surface of the tray to deflect liquid flowing across the tray towards the units 2. Below each unit 2 a centrifugal separator is provided to remove the liquid entrained in the gas. As shown in Fig. 4 the separator comprises inner and outer cylinders 13 and 10, the former containing helical vanes 11 and the latter an inverted frusto-conical baffle 11. A drain 15 removes liquid collecting on a plate 12 in which the cylinders 13 are mounted.
Patent GB-1297839-A (GB)
IPC: F17C13/00
Filed: 1970-10-27
Abstract: 1297839 Thermal insulation; pipe insulation GULF OIL CANADA Ltd-GULF OIL CANADA LIMITED and CHEMICAL PROJECTS Ltd 27 Oct 1970 51082/70 Headings F2P and F2X [Also in Division F4] The subject-matter of this Specification is contained in Specification 1,210,275 but the claims differ.
Patent GB-1309093-A (GB)
Title: Method of manufacturing warp sheet
IPC: C25D1/00
Filed: 1970-02-10
Abstract: 1309093 Laminates ROLLS-ROYCE Ltd 19 April 1971 [10 Feb 1970] 6259/71 Heading B5N [Also in Divisions B3 C7 and D1] Composite material is made by winding a plurality of fibres on to a drum, simultaneously coating matrix metal on to the fibres (see Divisions C6-C7), slitting the deposited layer, removing it from the drum and straightening it to form a flat sheet. The fibres may be carbon fibres and the metal matrix, copper, nickel, lead, tin, cobalt or aluminium. A number of sheets so produced may be laminated either by direct pressing or by coating the sheets with a softer, readily bondable material and uniting to form a bond by diffusion.
Patent GB-1313660-A (GB)
Title: Heat treatment of yarns and strands
IPC: D01D10/04
Filed: 1969-07-28
Abstract: 1313660 Finishing yarns IMPERIAL CHEMICAL INDUSTRIES Ltd 7 July 1970 [28 July 1969] 37790/69 Headings D1F and D1W In a continuous process for heat treatment of yarns or strands of continuous filaments or staple fibres of a synthetic thermoplastic polymer (including bi-component conjugate and/or sheathed forms thereof, the components differing in intrinsic viscosity or melting temperature point) or natural staple fibres or mixtures thereof, e.g. in order to produce desired physical properties such as a reduced shrinkage propensity therein or to induce or allow bulking or crimping, and perhaps some bonding, of the constituent filaments thereof, the yarn &c is entrained in a gaseous e.g. air, stream and carried therewith axially into contact with an annular stream of heated, perhaps compressed gaseous fluid e.g. air, the streams and the yarn &c thereafter intermingling with a reduction in fluid pressure and at least partial relaxation of the yarn &c. The gas flows do not cause entanglements or looping of the component filaments of the yarn &c although the latter follows a looped or arched path during subsequent cooling e.g. by passage through a countercurrent flow of cooling gas. As shown in Fig. 1, yarn 1 is drawn into a device 2 by passage therethrough of air (at ambient temperature and entering at 8) which carries the yarn through passageway 3 near the outlet of which it is engaged by an annular stream of hot air supplied to passageways 5 and 9. Air pressure falls beyond the passageways and tension is reduced as the cooling, relaxed yarn is withdrawn through the nip of rollers 6, 7, the speed of which is less than the speed of egress of yarn from the passageways. The entraining device 2, Fig. 2, comprises a body 11 with a bore housing a tube 12 adjustably positionable therein to vary the penetration of the end thereof into the tubular passageway 3. At the intersection of the tubes, the bore is enlarged to form a reservoir of compressed gas supplied through tube 14. The treatment device, Fig. 3, comprises a passageway 3 inserted in the bore of a body 15 which also has a hot air inlet 16 the entry orifice of which opens into the bore where it is enlarged to form an annular passageway 5 which terminates at or near the end of passageway 3. In use a cone of relatively cool gas is formed at the mouth of tube 3 surrounded by an annulus of hotter gas, the gaseous flows thereafter mingling.
Patent GB-1316260-A (GB)
Title: Rotary drum type cutting head for machines for mining tunnelling  and like operations
IPC: E21C27/22
Filed: 1969-08-05
Abstract: 1316260 Mineral-mining machines; planing road surfaces GREENSIDE MACHINE CO Ltd 25 Aug 1970 [5 Aug 1969] 39256/69 Headings E1F and E1G A rotary, drum type cutter head for a mining, tunnelling or road-planing machine comprises a core structure 1 having an annular periphery and cutter pick-carrying, arcuate, plate segments 4, which are releasably interconnected and fixed in position against the annular periphery of the core structure to form a shell cladding the structure. Interconnection of the segments is by bolted together, abutting, axially extending flanges 7 and the segments are preferably anchored on the structure 1 by projections 2 on the structure 1 entering holes 3 in the segments 4. Each segment can also have a flange 5 which can be secured to a flange formed of flange elements 10 located at one end of the structure when it is of cylindrical form. A pick-carrying, circular front plate 12 can be secured to the flange 7 and 10, the flanges 7 being then preferably set back from the adjacent edges of the segments. Keys 11 on the plate 12 enter gaps between adjacent flanges 5 of the segments. One or more such drums are used in a tunnelling or mining machine having an arm A rotatable about an axis extending longitudinally of the machine, and means D on the arm for rotatably driving at least one such drum H constructed according to the invention and supported on the arm.
Patent GB-1320140-A (GB)
Title: Apparatus for performing the immiscible refrigerant freeze process for purifying water
IPC: B01D9/02
Filed: 1969-12-30
Abstract: 1320140 Water purifying plant UNITED KINGDOM ATOMIC ENERGY AUTHORITY 15 Dec 1970 [30 Dec 1969] 63404/69 Heading BIG [Also in Division C1] A water purifying plant has a crystalliser section comprising two sub-sections, in the first of which refrigerant is injected into the impure water and boils to form an ice crystal slurry and in the second of which refrigerant entrained in the slurry is removed by evaporation.  The figure shows the complete process of the plant in flow diagram form. Sea water enters section 10a of vessel 10 via line 11 through jets (not shown). Liquid butane is injected into the same section via line 12 and boils to convert the impure water to an ice crystal slurry, which passes to a lower part of section 10a where it is agitated by paddles 38a to vapourise any butane droplets remaining therein. The slurry is then pumped into section 10c where the ice floats to the top, is washed by spray bars to remove any saline solution entrained therein and scraped into section 10b where the ice is melted by butane gas. The liquid butane/water mixture is then passed to primary decanter 14 where the two liquids separate and the fresh water is passed on to a condenser/decanter (not shown), some of this water being bled off to wash the crystals in section 10c. In a further embodiment (not shown) the first and second subsections are separately housed in cylindrical vessels.
Patent GB-1321228-A (GB)
Title: Production of sodium tripolyphosphate
IPC: C01B25/41
Filed: 1969-07-23
Abstract: 1321228 Sodium tripolyphosphate ALBRIGHT & WILSON Ltd 9 July 1970 [23 July 1969] 37054/69 Heading C1A Substantially anhydrous granular sodium tripolyphosphate is at least partially hydrated, thereby increasing its bulk density, by adding to the granules an aqueous solution of sodium tripolyphosphate. The hydrated sodium tripolyphosphate produced may have a bulk density in the range 0À60 to 0À74 grams./cc. The sodium tripolyphosphate solution, obtained for example by dissolution of fines obtained as waste products in the production of anhydrous granular sodium tripolyphosphate may contain 10 to 27% by weight of sodium tripolyphosphate. Methods of application include spraying on to a layer 1 granule thick or on to a fluidized bed of the granules or mixing. In an example tripolyphosphate (500 g.) is placed in mixers and sprayed with 15 weight per cent sodium tripolyphosphate solutions. In quantities to give 25-100% conversion to hexahydrate. Sieve analyses of initial and 75% hydrated materials are given.
Patent GB-1324215-A (GB)
Title: Air circulating arrangement for electric ovens
IPC: F24C14/00
Filed: 1972-01-12
Abstract: 1324215 Cooking ovens STANDARD TELEPHONES & CABLES Ltd 12 Jan 1972 1442/72 Heading F4W An air circulating arrangement for an electric oven, particularly a self cleaning oven, comprises a fan operated by a fan motor 3 mounted within the oven. The motor 3 to be capable of operating at the temperatures used during the self-cleaning cycle is preferable constructed with windings of anodized aluminium strip, and so has a low operating voltage. In order to supply the motor with a suitable voltage, the motor 3 is connected between the neutral wire 6 and a tapping point 4 on one of the heating elements 1, via a switch 5 which is automatically closed when the self-clean cycle is selected.
Patent GB-1328245-A (GB)
Title: Packing machine
IPC: B65B25/14
Filed: 1970-09-03
Abstract: 1328245 Packaging stacks of flat articles TECH-ART Inc 3 Sept 1970 32359/70 Heading B8C In a machine for packing flat articles such as folded cartons (A, B, C), Fig. 12, not shown, the cartons are fed at random from a machine, not shown, which may print or seal them, and between a pair of laterally adjustable side plates 37, 38 and on to a conveyer belt 27, Fig. 4, which advances them beneath an adjustable discriminator arm 39 and on to a faster moving discriminator conveyer belt 34 which carries them forward beneath a spring finger 42 and vertically adjustable brushes 44 and delivers them, flat and one at a time, toward a counting station intake mechanism 21. The latter feeds each carton upwardly between opposed conveyer belts 116, and 98, 110, which presents each one in a substantially vertical position to an adjustable deflector plate 131, Fig. 5, at a counting station 22 where the cartons are counted by a photo-electric mechanism 142, 143. A cam-operated patter bar 157 pushes the cartons, as they leave the counting station, against a rear partition 158 for delivery between a pair of laterally adjustable-side plates 159, 160 and on to a discharge conveyer belt 132 which delivers them on to the platform bars 174 of a table which moves vertically downwardly by increments in guides, under the control of hydraulic mechanism 177, at the normal rate of receiving cartons. After the desired number of cartons have been stacked on to the table 174 the latter is stopped and the stack of cartons thereon is compressed vertically by a compressing arm mechanism 230 which is vertically adjustable to accommodate different stacking heights. A pusher 210, 215 is then moved by an hydraulic motor 221 to transfer the stack sideways off the table 174 and into a container 201, the latter having been pivoted, by a container support mechanism 184, Fig. 6, from an upright position, where it rested on a horizontal bar 199, 200 platform of the mechanism 184 located at its lowermost position, and on to its side, with the wall 199, 200 swung up into the dotted line vertical position and the carton resting on one side, with its opening facing the carton stack. After the container has been loaded with the carton stack the platform mechanism is swung downwardly to its lowermost position to deposit the containers on continuously moving conveyers 240, 241 which discharge the loaded conveyer from the machine. Machine operating electric and hydraulic circuitry is described.
Patent GB-1336995-A (GB)
Title: Seals
IPC: F16J10/02
Filed: 1971-07-28
Abstract: 1336995 Fluid operated actuators; hydraulic accumulators A JOHNSTON 28 July 1971 [ 5 May 1970] 21577/70 Headings F1D and F1P [Also in Division F2] A cellular elastomeric body (Div. F2) is used between relatively reciprocable members and acts as both a seal and a return spring, the body being impervious to fluid. A remote control hydraulic actuator system, Fig. 6, includes cellular bodies 77, 78 in the master and slave units 68, 70. As applied to a hydraulic accumulator, Fig. 7, one end of the cellular body 84 is attached to the end of the cylinder while the other end is attached to the piston to form a stretchable bag sealing the air space 83 from the oil space 82. In Figs. 8A and 8B (not shown), a hydraulic ram comprises three telescopic tubes; cellular bodies (93, 94) between the tubes serve to seal the joints and tend to collapse the ram from its extended position. In a pneumatic actuator, Figs. 9A and 9B (not shown), a cellular body (99) provided between the piston (96) and the end of the cylinder through which the piston rod passes is of a hollow truncated conical shape such that the area of contact of the body with the piston increases as the body is compressed by the piston; alternatively, the cellular body may be dome-shaped or stepped to afford different compressibility characteristics and the bore which surrounds the piston rod may be conical or cylindrical so that it engages the piston rod along part or all of its length. A pneumatic ram may consist of three telescopic tubes 115, 116, 117, Fig. 11, or two tubes, Figs. 10A and 10B (not shown), extended by air pressure and contracted by the cellular seal body 118 which is bonded at 119 and 120 and possibly bonded at 121.
Patent GB-1338574-A (GB)
Title: Cutter assembly for cutting grooves longitudinally of timber beams
IPC: B27B33/20
Filed: 1971-05-21
Abstract: 1338574 Rotary groove cutter DAVID GRAY (CONTRACTORS) Ltd 21 May 1971 [20 Aug 1970] 40084/70 Heading B5L A cutter assembly 11 for forming grooves and saw cuts simultaneously lengthwise of the edge of a beam 12 comprises one or more circular profiled groove cutters 11a, 11b, 11c profiled to cut a plurality of grooves and one or more saw discs 11d arranged coaxially therewith, the saw disc(s) being of a substantially greater diameter than the groove cutters and being rotatable simultaneously therewith. As described a pair of cutter assemblies 11, 13, each comprising groove cutters and saw discs bolted together, are arranged to form complementary tongues and grooves in the opposite edges of the beam 12.
Patent GB-1344259-A (GB)
Title: Amusement device
IPC: A63F9/08
Filed: 1971-04-19
Abstract: 1344259 Amusement device F FOX 19 April 1971 [9 April 1970] 16940/70 Heading A6H An amusement device comprises a body having marked on its surface a number of areas, each area comprising a 3x3 array of marked positions. The body has a curved or planar facetted surface and the areas are such that some of the marked positions are common to more than one area. As exemplified, a sphere may be marked into 26 sections by printing, grooves, recesses or wires located in the body. A smooth surface may be provided on which a game of "noughts and crosses" may be played with an erasable crayon. Apertures 5, may be provided (see Fig. 5) by which playing pieces, e.g. representing letters for a word-game or figures can be affixed to the body. The body is preferably made up of discrete sections held together by tongue and groove connections and rotatable with respect to one another. The sections may be different coloured and the body may be employed as a pattern-forming toy.