baber/WOPTO huggingface dataset:
Patent GB-1053620-A (GB)
IPC: B65G27/00
Abstract: 1,053,620. Vibrating conveyer. OSCELEC Ltd. July 22, 1965 [July 30, 1964], No. 30221/64. Heading B8A. The mounting for a vibrating conveyer comprises an annular plate 1 and an annular baseplate 3 connected by rods 5 which pass through holes in the plates and are secured therein for example by soldering. The rods are spring like so that when a vibratory bowl is secured to the top of plate 1 and vibrated in a circulatory manner by a centrally positioned magnet the bowl is vibrated to convey the articles therein up a helical path formed on the inside of the bowl. Additional rods 7 are secured at diametrical positions. The advantage is that one or two rods may break without upsetting the vibratory system.
Patent GB-1095591-A (GB)
IPC: F23G7/10
Abstract: 1,095,591. Portable incinerators. R. J. ROTHWELL. Oct. 30, 1964 [July 31, 1963], No. 30280/63. Heading F4W. A portable refuse incinerator comprising an imperforate cylindrical body 1, mounted on legs 2, has an opening 6 for the passage of smoke into a downwardlydirected pipe 5, which has a spray nozzle 8 at its upper end, directing water into said pipe. The pipe (5) may be situated within the body (1), Figs. 5 and 6 (not shown). In a further embodiment, Fig. 7 (not shown), the top of the body is formed with an inwardly and upwardly-directed flange and an outwardly and upwardly-directed flange forming an annular gutter therebetween. The lid of the incinerator is conical and spaced from the flanges forming an annular space. The smoke from the burning material passes into this space through a central opening in the inner flange and is washed down to the gutter by a water spray fitted within the conical lid; the smoke and water being drained from the gutter by one or more pipes.
Patent GB-1227809-A (GB)
IPC: H01L21/225
Filed: 1968-09-26
Abstract: 1,227,809. Semi-conductor devices by diffusion. PHILCO-FORD CORP. 26 Sept., 1968 [26 Sept., 1967], No. 45794/68. Heading H1K. A shallow-diffused region is formed in a body of opposite conductivity type by a process in which the first step is the diffusion of impurity through an apertured mask, the diffusion being carried out in an oxidizing atmosphere and using a glass-forming impurity. A resultant glass layer (but not the mask itself) is removed and diffusion and glass-removal repeated at least once. (Oxide protrusions originally present round the edge of the mask aperture will be removed by this repeated process). The process is then completed by an impurity drive-in stage. Typical materials are a silicon body, silica mask, and phosphorus, boron or antimony as impurity. With phosphorus, the diffusion atmosphere may consist of oxygen, nitrogen, and phosphorus oxychloride. Dilute hydrofluoric acid may be used to selectively remove the phosphate glass while leaving the silica. Three short diffusion and glass removal steps are preferably employed. Drive-in diffusion may be effected in nitrogen, argon, or helium, though the presence of oxygen may be necessary to prevent pitting if high temperatures are used. Reference has been directed by the Comptroller to Specification 909,869.
Patent GB-1228092-A (GB)
IPC: H01M6/22
Filed: 1969-10-13
Abstract: 1,228,092. Leakproof primary cell. VARTA G.m.b.H. 13 Oct., 1969 [16 Oct., 1968], No. 50274/69. Heading H1B. In a leakproof primary cell with a separator layer which comprises a thickened electrolyte disposed between the negative electrode and the depolarizer, the thickener consists of or contains granules of an anion exchanger alone or in admixture with a cation exchanger, which granules can absorb at least 3 times their dry weight of water, and preferably have a particle size between 15 and 70 Á. Suitable anion exchange material is a styrene polymer crosslinked with not more than 3 mol. per cent of divinyl benzene having in the ring substituents containing quaternary ammonium groups. Suitable cation exchangers are those disclosed in Specification 1,170,480. The separator layer may be produced on the inside of a zinc can by applying a suspension of the ion exchangers in a binder solution in the form of a film, and then removing the solvent for the binder. The binder is suitably a rubber, e.g. polychloroprene, polyisobutylene, or a nitrile rubber such as a butadiene-acrylonitrile copolymer. Alternatively a coherent layer of the ion-exchange granules can be formed on the zinc can by applying a suspension of the granules in an organic liquid which is a solvent for the granules, and then removing the solvent. In another method a solution of the binder may first be applied as a thin film on the can and the ion exchange granules can then be dusted on before the solvent is removed. A depolarizer mix comprising MnO 2 , carbon black, ZnO, and an aqueous solution of ZnCl 2 , and subsequently a carbon rod is pressed into the internally coated zinc can.
Patent GB-1228109-A (GB)
IPC: B60K17/28
Filed: 1969-11-21
Abstract: 1,228,109. Machinery guards. DAIMLEBBENZ A.G. 21 Nov., 1969 [23 Nov., 1968], No. 57064/69. Heading F2J. A resilient plastics hood 3 designed to protect the end of a power take-off shaft 1 from above and from the sides has an annular flange 4 which grips a ring 5 securable to a bearing 2 for the shaft 1. A projection 7 of the ring 5 engages a recess 6 in the flange 4 to angularly locate the hood. A cup-shaped plastics cover 8 for the shaft end is a snap-fit into the flange 4.
Patent GB-1228467-A (GB)
IPC: H03F7/04
Filed: 1968-07-05
Abstract: 1,228,467. Parametric amplifiers. TEXAS INSTRUMENTS Inc. 5 July, 1968 [9 Aug., 1967], No. 32272/68. Heading H3B. In a low noise reactance amplifier comprising four semi-conductor diodes connected in a bridge network isolating circuits are coupled to the diode bridge to eliminate charge transfer from the diodes at the frequency of the pump source. Semi-conductor diodes 20, 22 and 24, 26 are connected as shown in a bridge network and are reverse biased by batteries 42, 50, capacitors 34, 36 being adjusted so that the overall capacitance at the pump frequency of the pairs of diodes are equal. Low-frequency input signals from source 38 are supplied to input terminal 40 and thence to junctions 30, 32 where they react with the varying non-linear capacitancies pumped by a high-frequency pump signal from source 10. The input signal is superimposed on the bias voltages in order to differentially vary the overall capacitances of the diode pairs and interaction between the pump and input signals results in sum and difference sidebands appearing across resistor 28 and being applied to tuned output circuit 62. Circuits 46, 54 tuned for resonance at the pump frequency and circuits 48, 56 tuned to resonance at the second harmonic are connected as shown to isolate the junctions of the back-to-back diodes from charge transfer at the pump frequency and second harmonics so that the overall capacitance of the reactance elements remains generally constant. Since the overall capacitance at pump frequency of the pair of diodes 20, 22 remains equal to the overall capacitance at pump frequency of the diode pair 24, 26 second harmonic components of the time-varying capacitance are eliminated and the gain of the circuit is directly proportional to the peak pump voltage. The back-to-back diodes may be replaced by other non-linear capacitance devices having series connected barrier capacitance layers such as PNP and NPN diode elements, the N or P centre region being effectively iso-. lated from charge transfer. Other devices are Schottky diodes, PN junctions, MOS devices and magnetostrictive and piezoelectric variable capacitance devices. The tuned circuits mau be replaced by high impedance resistances or broadband tuned amplifiers.
Patent GB-1229976-A (GB)
IPC: G01R23/00
Filed: 1968-07-18
Abstract: 1,229,976. Selective signalling. INTERNATIONAL STANDARD ELECTRIC CORP. 18 July, 1968 [19 July, 1967], No. 34322/68. Heading G4H. To measure the frequency deviation of a carrier fc when frequency modulated by a wave fm, Fig. 1a the frequency modulated carrier is differentiated, the resulting pulses Fm, Fig. 1b, are counted in a first counter starting from a zero cross-over of the modulating wave, at the same time, and starting from the same instant, reference pulses FR, Fig. 1c, equal in frequency to the carrier frequency fc, are counted in a second counter and the difference in time for the two counters to reach a particular number (200 as shown) is determined by counting high frequency clock pulses for the appropriate period.
Patent GB-1252874-A (GB)
IPC: H01C13/00
Filed: 1970-05-13
Abstract: 1,252,874. Attenuators. TEKTRONIX Inc. 13 May, 1970 [3 June, 1969], No. 23130/70. Heading H3U. [Also in Division H1] A step attenuator of the rotary turret type (see Division H1) comprises a plurality of elongated attenuator sections 12 mounted on metal plates 56 and has means for grounding the plate 56 of the selected section via two oppositelydirected parallel current paths (Figs. 3 and 4, not shown) whereby the attenuator section has extremely low inductance and a wide frequency bandwidth. Each section 12 comprises a ceramic strip 68 bonded to the metal plate 56 and carrying respective input and output contacts 74 and 76. Voltage divider resistors 70 and 72 are formed as coatings on the bottom of strip 68 and are connected to the contacts 74, 76 by soldering at their lower ends. A variable capacitor 80 controls the input capacitance of the section and has part formed by a metalized portion of the ceramic strip 68, while a variable coupling capacitor 82 is similarly formed. Apertures 88 and 90 in plate 56 enable adjustment of capacitors 80 and 82 respectively. A damping resistor 84 providsd as a coating on the top of strip 68 prevents ringing without attenuating a D.C. signal being transmitted. A shunt capacitor 86 may be provided as shown to form an A.C. voltage divider with capacitor 82.
Patent GB-1257617-A (GB)
IPC: B41F27/12
Filed: 1970-07-16
Abstract: 1,257,617. Rollers. ROTOGRAPHIC MACHINERY CO. 16 July, 1970 [6 Feb., 1970], No. 34440/70. Heading F2U. [Also in Division B6] A flexible sheet 114 is secured to and tensioned about the periphery of a cylinder 14 by clamps 36L, 36T, which are connected by links 38, 40. The links are joined pivotally by a hinge bolt 44, which is urged radially outwards of the cylinder by a spring 50. When the sheet is to be replaced the links are moved inwards against face 22 by a screw 52, the tension imposed by the spring 50 is relaxed and insertion of a rod 110 into a cavity 108 in the end of each latch 102 allows each latch to be rotated about its pivot 104 and move its block 84T or 84L against the resistance of a spring 98 to open the associated jaw 86L or 86T.
Patent GB-1259504-A (GB)
IPC: B01J23/90
Filed: 1969-04-18
Abstract: 1,259,504. Manganese containing catalyst. IMPERIAL CHEMICAL INDUSTRIES Ltd. 8 April, 1970 [18 April, 1969], No. 19974/69. Heading B1E. [Also in Division C2] A catalyst composition is prepared by contacting a manganese oxide precipitate containing bound alkali metal with an aqueous solution of salts of one or more heavy metal (i.e. Ti, V, Cr, Fe, Co, Ni, Cu, Zr, Mo, Ag, Sn, Sb, Ta, W, Re, Au, Hg, Tl, Pb or Bi) so as to replace the alkali metal in the precipitate by the heavy metal, and thereafter separating the solid and drying. The precipitate is suitably prepared by reduction of permanganate, e.g. by formaldehyde, acetaldehyde, methanol, ethanol or glucose, in the presence of excess alkali metal hydroxide or by oxidising a manganese salt, e.g. by oxygen or hypochlorite in the presence of alkali metal hydroxide. An inert insoluble carrier material may be present in the reaction solution, those specified being Kieselguhr, silica, pumice, asbestos, fire clay or active carbon. The composition may be partially reduced by treatment with carbon monoxide or hydrogen prior to use. The catalyst is suitably used in the presence of alcohols or water.
Patent GB-1264114-A (GB)
IPC: B65D1/26
Filed: 1968-02-19
Abstract: 1,264,114. Nestable cups &c. AUTOBARS VENDABEKA Ltd. Feb.18, 1969 (Feb. 19, 1968], No. 8065/68. Heading A4A. A nestable cup has a bottom 9, a frusto-conical side wall and inwardly projecting ledge 8 and a plurality of hollow protuberances 10 extending from the ledge 8 towards the bottom 9; the upper ends of the protuberances defining openings in the inner periphery of the ledge 8. The protuberances 10, (3), Fig. 1, (14), Fig. 14, (16), Fig. 5 (not shown) are so shaped or arranged that when two similar cups are nested one within the other the internal pattern of the openings in the ledge of the bottom cup does not match or coincide, except perhaps over a small range of relative orientations of the two cups, with the external pattern of the bottom ends of the protuberances. This allows free passage of air to the space between the bottoms of the nested cups and hence facilitates separation of the cups. The cup has an annular zone of the side wall, above the ledge 8, formed with an arrangement of helical ribs (5), Fig. 1 (not shown) providing a finger grip portion. These helical ribs (5) may be arranged to interengage with the corresponding ribs on a similar cup nested therewith to orientate the nested cups into predetermined relative positions of rotation. Such an arrangement may thus be used to preclude the undesirable small range of relative orientations wherein an air passage to the space between the bottom of two nested cups is not present.
Patent GB-1265869-A (GB)
IPC: G07F1/04
Filed: 1969-08-01
Abstract: 1,265,869. Coin testing devices. T. J. MULLIGAN, and J. K. MORRISON. 1 Aug., 1969, No. 38697/69. Heading G4V. Largest diameter coins acceptable by a coin inlet shoot 30, of a coin receiving and discriminating apparatus, travel along the inlet shoot and are deflected by a projection 38 into a coin receiving shoot 32, whereas smaller diameter coins travel along the inlet shoot and follow a normal trajectory or are only partially deflected by the projection so that they enter a coin rejection shoot 31. Coins passing through the coin receiving shoot 32 actuate a switch 17 by means of a lever 37. The coin inlet shoot 30 is defined by walls 14a, 15a, 18, the wall 14a comprising a large radius at the inlet opening end and a tangential smaller radius terminating at the projection 38 horizontally opposite the termination of the wall 15a. The coin receiving shoot is defined by walls 15b, 32b, 32a, 18; and the coin rejection shoot is defined by walls 16a, 31a, 31b, 18. The coin receiving and discriminating apparatus can be used to actuate a vehicular passenger service facility (12a), Fig. 1 (not shown).
Patent GB-1265983-A (GB)
IPC: F16D43/202
Filed: 1969-09-17
Abstract: 1,265,983. Overload clutches. A. J. BRADLEY. 15 Sept., 1970 [17 Sept., 1969], No. 45758/69. Heading F2C. An overload clutch comprising a hollow shaft 10 fitted over an input shaft 11 and on which an output clutch member 12 is rotatable has balls 17 carried by a freely rotating annular plate 18 transmitting the drive from a clutch member 19 mounted by splines 20 on the shaft 10. A twin spring assembly 23 urges the member 19 into driving engagement the outer spring 26 allowing axial disengagement at a normal running overload while an inner spring 27 maintains engagement during larger starting torques. The spring 27 abuts an abutment 31 which in the stationary position shown has a small clearance with pins 33 urged inwards by a spring 41. On starting slight initial separation of the clutch plates engages the pins 33 with the abutment 31 held by the spring 27 but upon increase of speed centrifugal force will withdraw the pins 33 out of engagement with the abutment 31 after the torque has fallen sufficiently to allow the spring 26 to restore the clearance between the pins 33 and the abutment 31 so that the drive is only maintained by the spring 26 allowing disengagement at the running overload torque. The overload disengagement can be preset by adjusting the spring loadings by screw abutments 24, 25 locked by a screw 28. In a modification a positive drive is provided during starting by firing the abutment 31 on the shaft 10 and then the spring 27 is omitted. In an alternative arrangement the balls may be located in curved slots or other means may be provided such that the balls move radially outwards upon disengagement into positions in which the recesses in the clutch members are not contacted. In this case manual restoration of the balls is necessary after disengagement.
Patent GB-1296591-A (GB)
IPC: B29B7/88
Filed: 1970-05-28
Abstract: 1296591 Compounding rubber VICKERS Ltd 25 June 1971 [28 May 1970] 25859/70 Addition to 1,189,042 Headings C3E and C3Q The invention is distinguished from parent Specification which discloses a method in which a rubber material is pelletized, an ingredient is added to render the surface of the pellets retentive to a powdered solid, the powdered solid is dispersed over the pellets and the coated pellets are then worked to incorporate the solid material in the rubber in that the rubber material is pelletized to form pellets of grooved form. A suitable pellet of grooved form is a cylindrical pellet having grooves formed in its curved surface.
Patent GB-1296957-A (GB)
IPC: C01B17/06
Filed: 1971-05-28
Abstract: 1296957 Removing SO 2  from gases CHEMICAL CONSTRUCTION CORP 28 May 1971 18033/71 Heading C1A SO 2  is removed from waste gas by scrubbing the gas with aqueous Na 2 SO 3 , adding MgO and or Mg(OH) 2  to at least a portion of the resulting NaHSO 3  solution to precipitate MgSO 3 , recycling the regenerated Na 2 SO 3  solution together with any untreated portion, reacting the MgSO 3  with carbon to form MgO and sulphur vapour, and recycling the MgO. The waste gas may be flue gas or H 2 SO 4  off-gas. If it contains SO 3 , MgSO 4  is also formed. Entrained fly ash may be separated after scrubbing. The MgSO 3  may be heated with coal or coke at 400-900‹ C. The sulphur vapour may be condensed or scrubbed with solvent.
Patent GB-1297805-A (GB)
IPC: C23C4/06
Filed: 1969-11-26
Abstract: 1297805 Metal spraying powder ROBERT BOSCH GmbH 26 Nov 1969 [27 Nov 1968] 57782/69 Heading C7F A metal spraying powder comprises first and second powdered components A and B mixed in any desired proportion, A being an alloy containing at least 45% Ni with Mo and Fe and B containing a hard substance selected from (1) a binary alloy-like compound of a non-metal which is B, C, N, O, Si, P or S with a transition metal of subgroups VI to VIII of the Periodic Table (i.e. Cr, Mo, W, Mn, Tc, Re, Fe, Co, Ni, Ru, Rh, Pd, Os, Ir or Pt) (2) aluminium oxide or silicon oxide, (3) an aluminide, or (4) Mo or W. A preferably contains at least 1% Mo, e.g. A can be 81% Ni, 2% Mo, balance Fe, and the mixture preferably contains at least 10% of A. If the sprayed-on coating is to be subject to rubbing, a third component such as graphite, MoS 2  or BN may be added. A preferred grain size for the powder is 20Á-70Á.
Patent GB-1306679-A (GB)
Title: Fluid flow control systems
IPC: G05D7/03
Filed: 1969-11-26
Abstract: 1306679 Pilot-operated pressure regulators I V PRESSURE CONTROLLERS Ltd 12 Oct 1970 [26 Nov 1969] 57964/69 Heading G3P A pressure regulator has a main valve-member 21 biased to an open position by spring 26 loaded by piston or diaphragm 28 responsive to the outlet pressure of a pilot valve 11 whose valve-member responds to the outlet pressure of the main valve via 31 and optional pressure proportioner 33. Piston 22 of the main valve also responds to the outlet pressure via 24 to close the main valve when the outlet pressure balances the loading on piston or diaphragm 28.
Patent GB-1311672-A (GB)
Title: Methods and apparatus for electrostatic printing or copying
IPC: G03F5/20
Filed: 1969-03-12
Abstract: 1311672 Electro-photographic processes MASSON SCOTT THRISSELL ENG Ltd 12 May 1970 [12 March 1969] 12904/69 Heading G2H [Also in Division B6] A printing machine operating by selective electrostatic transfer of ink comprises an electrically-insulating surface 12 having a large number of cells 13 in it. Preferably the cells 13 are floored with a photo-conductive material layer 17, which may be of zinc oxide, over a translucent layer 16 of an electrically conductive material such as a tin compound. The printing cylinder 11 runs in an ink bath 14, and the cells 13 in it become filled with ink and are swept by doctor blade 40. Exposure e.g. to a negative 22 through glass body 15, causes a photo-conductivity pattern to form in the layer 17, and application of an electrostatic field between layer 16 and an external electrode causes the conductivity pattern to be expressed in a bulging of the ink in the cells 13. The bulged pattern may be transferred to paper. Alternatively the bulged part of the image may be removed by a second doctor blade 41 and a second electrostatic field is applied to transfer ink from the previously-unbulged parts of the image. The layer 17 may be omitted if photo-conductive ink is used. A half-tone effect may be obtained by use of a progressively photo-conductive ink, or modulation of the electrostatic field which causes the ink to bulge, so that varying amounts of ink are transferred from the cells. In place of electroconductive modulation of the electrostatic field, a charge pattern may be applied directly by an electron beam, or by an array of electrodes. Two printing units, with a single electrostatic field between their cylinders, may be employed for perfecting printing. Multi-colour printing can be carried out by successive printing operations.
Patent GB-1311885-A (GB)
Title: Deformation of polymeric materials
IPC: B29C67/00
Filed: 1969-07-01
Abstract: 1311885 Drawing billets through dies IMPERIAL CHEMICAL INDUSTRIES Ltd 23 June 1970 [1 July 1969] 33230/69 Heading B5A Oriented elongated polymeric articles are made by drawing a thermaplastic billet having an oriented leading end or "nose" through a die, the billet being gripped by the "nose". Drawing may be assisted by extrusion, for example by hydrostatic extrusion using a fluid such as a silicone, mineral or vegetable oil to lubricate the die. The "nose" may be formed upon the billet by extrusion. Tubes, rods, T or I bars or the like may be drawn.
Patent GB-1312261-A (GB)
Title: Boat propulsion unit
IPC: B63H25/46
Filed: 1969-05-23
Abstract: 1312261 Water-jet propulsion P M WILKS 19 June 1970 [23 May 1969] 26319/69 Heading B7V A marine craft propulsion unit comprises a water pump 13, 14 mounted at 30, 31 in the pump inlet of the craft. A power source in casing 25 has its output shaft 28 drivingly connectible with the input shaft 29 of the pump. Quick release clip 27 engageable between the power source and the pump and locating dowels 26 enable the power source to be readily detached from the pump which remains fixed in position at 30, 31. In the embodiment shown the craft may be steered by rotating nozzle 16 about vertical shaft 17.
Patent GB-1320531-A (GB)
Title: Vibrational damping systems
IPC: B23B29/02
Filed: 1970-09-10
Abstract: 1320531 Vibration damping; boring bars; lathe tools NATIONAL RESEARCH DEVELOPMENT CORP 22 Oct 1971 [10 Sept 1970] 43421/70 Headings B3B, B3C and B3T [Also in Division F2] Vibrations of a boring bar 1 or lathe tool (not shown) are damped to an adjustable extent by the impacts of a mass 23 resiliently connected (by rod 25) to the member 1 on a target 13 provided by or rigidly connected to the member 1 and partly surrounding the mass. The impacting surfaces of the mass 23 and the target 13 are frusto-conical. The damping is varied by adjusting the free length of the rod 25 and the width of the gap "d" between the mass 23 and the target 13. In Fig. 2 (not shown) the mass (85) carries adjustable weights.