baber/WOPTO huggingface dataset:
Patent GB-1054748-A (GB)
IPC: H03K17/96
Abstract: 1,054,748. Electric selective signalling. M. L. AVIATION CO. Ltd. May 28, 1965 [Feb. 28, 1964], No. 8451/64. Heading G4H. An electric switch comprises a switching transistor TR2, Fig. 3 (not shown), and a transistor oscillator circuit including, for example a piezo-electric crystal which oscillates until the crystal is clamped, the output of the oscillator circuit causing the transistor TR2 to switch from one state to the other when the crystal is clamped or released. The operating rod 2, Fig. 1 (not shown), of the switch slides in a guide 4 and carries a spring-loaded roller 5 which in one position of the rod bears on the crystal 6 and reduces the amplitude of its oscillation. The oscillator circuit also includes transistor TR1 and the primary of transformer T1. The secondary is connected through diode 10 to capacitor C1 to develop a negative bias on transistor TR2 which accordingly conducts when the crystal is oscillating. Terminals C and 10 form the contacts of the switch. The circuit opens when the rod 2 is pushed in to clamp the crystal 6 and reduce or stop the oscillation. The diode 10 may be reversed to reverse the operation. The transformer T1 may be replaced by a piezo-electric transformer and the crystal by a magnetostrictive element.
Patent GB-1228434-A (GB)
IPC: C03C8/02
Filed: 1968-04-10
Abstract: 1,228,434. Enamels and enamelling. FARBENFABRIKEN BAYER A.G. 10 April, 1968 [12 April, 1967; 20 Dec., 1967], No. 17253/68. Heading C1M. [Also in Division C7] An enamel coating is electrophoretically applied to steel or nickel-plated steel from a suspension comprising 20 to 70% by weight of an enamel frit and 80 to 30% by weight of water, the suspension having a specific conductivity of from 7000 to 20,000 Á ohms<SP>-1</SP> cm.-<SP>1</SP>. The suspension may contain organic liquids such as isopropanol, ethylene glycol, dioxan, triethanolamine, cyclohexylamine, cyclohexanone or 2,4,6-trimethyl- 1 3,5-trioxane. The suspension may include sodium aluminate, conductivity increasing electrolytes such as alkali metal or ammonium phosphate, and binders such as cellulose or water glass. Prior to the electrophoretic deposition, steel plates may be degreased, heated in H 2 SO 4  and Ni electroplated. During the electrophoretic deposition, the article to be coated may be connected as anode and moved at a uniform speed past cathodes. The deposited layer may be sintered or fused. Electrophoretically applied enamel may be coated with further enamel. Specified enamel frits suitable for electrophoretic application fall within the following ranges:- SiO 2  27-33 35-44 45-65 Al 2 O 3  12-25 0-4.5 0-5 B 2 O 3  15-23 14-20 0-18 Na 2 O 8-12 7-11 10-18 K 2 O 2-6 0-5  F 5À5-9 0-5 1-5  CaO 8-12 - 0-4  TiO 2  - 8-22 0-9 CoO - - 0-2 NiO - - 0-1.5 Fe 2 O 3  - - 0-2  MgO - 0-2 -  P 2 O 5 , - 0-4 - Li 2 O - 0-1 - ZrO 2  6-10 - -
Patent GB-1228497-A (GB)
IPC: C09B47/067
Filed: 1968-11-27
Abstract: 1,228,497. Copper phthalocyanine. FARBWERKE HOECHST A.G. 27 Nov., 1968 [30 Nov., 1967], No. 56271/68. Heading C4P. Copper phthalocyanine having a chlorine content of 0À1-1À0 wt. per cent is prepared by heating phthalonitrile with CuCl in a molar ratio of about 4 :1 in the presence of 5-30 wt. per cent of urea (based on the amount of phthalonitrile) at 140-350‹ C. In Example 1, anhydrous sodium sulphate is also present in the reaction mixture.
Patent GB-1229107-A (GB)
IPC: B01D53/56
Filed: 1969-06-13
Abstract: 1,229,107. Removal of nitrogen oxides from gases; nitric acid. MOSKOVSKY GOSUDARSTVENNY UNIVERSITET IMENI M. V. LOMONOSOVA. 13 June, 1969, No. 30128/69. Heading C1A. _ Nitrogen oxides (NO, N 2 0 3 , N 2 0 4 ) are removed from gas streams (e.g. effluents) by reaction with excess ozone to form dinitrogen pentoxide, which may then be absorbed in water thereby forming nitric acid. The nitrogen oxides concentration in the gas stream may (i) be reduced by passing the gas stream (after the water treatment) through granular alkali or an aqueous alkali solution, or (ii) be further reduced by passing the gas stream (after the water treatment) over a transition metal oxide(s) catalyst (e.g. oxides of Co, Ni, Fe or Cu) supported on, e.g. an aluminosilicate, which processes concomitantly decompose excess ozone. For the initial oxidation an ozone-oxygen or ozone-air mixture may be used. Preferably the excess of ozone is not more than 20% of the stoichiometric amount required for reaction with the nitrogen oxides to convert them to N 2 O 5 .
Patent GB-1230784-A (GB)
IPC: F16F15/00
Filed: 1967-04-26
Abstract: 1,230,784. Sonic isolators; tuned couplings. ULTRASONICS Ltd. 6 May, 1968 [29 April, 1967], No. 19852/67. Headings H3U and H4J. Interposed between a system to be sonified and a structural support is an isolator resonant at the operating frequency of the source of sonifying vibrations. One antinode of the isolator is firmly bonded or secured to the system whilst a part at or close to a node or nodel plane is firmly bonded or secured to the structural support. The isolator is of length equal to half a wavelength or a multiple of half a wavelength. A pipe 1 (Fig. 1) to be sonified is supplied with liquid from inlet pipe 2, the latter being rigidly mounted in a supporting structure 3. An isolator 4 has a bore 4A enlarged at 4B to permit the adjacent end of the isolator 4 to vibrate freely. The pipe 2 is screw-threaded to the isolator 4 at a node. The pipe 1 is secured to the isolator 4 at one end face (at an antinode) by letting it into a short enlargement 4D and welding. Alternatively this connection is a screw-thread or the pipe end is secured to the outer periphery of the isolator. In another embodiment (Fig. 2) the isolator is bolted or welded by an annular flange 4E to a supporting structure 3, at a node. The isolator 24 (Fig. 4) is secured at a node by a flange 24E to a supporting structure 3, and is welded to an aperture in the wall of a tube 31 at an antinode. Alternatively a rigid coupling bar (25), Fig. 3 (not shown), connects the antinode wall of isolator 24 to a pipe coil (21).
Patent GB-1232220-A (GB)
IPC: B65H31/34
Filed: 1968-10-07
Abstract: 1,232,220. Delivering sheets. UNIVERSAL CORRUGATED BOX MACHINERY CORP. 7 Oct., 1968 [2 Feb., 1968], No. 47418/68. Heading B8R. Corrugated sheets cut from a strip are fed by a belt 25, Fig. 1, in overlapped relationship beneath retaining rollers 59, below a gate 15 on to a stacking unit comprising a first frame 181, Fig. 2, carrying a plurality of longitudinal rotatable rollers 186, and a second frame 198 carrying a plurality of slats 233. The slats are normally well above the rollers, the frame 198 being vertically movable by pneumatic actuators 197. The sheets are received by the slats which move downwards in steps as the stack grows. When a photo-cell 352 registers a given number of sheets, the gate is lowered to cut off the supply to the stack, and the frame 198 is lowered until the slats are just above the rollers, whereupon pneumatic actuators 227 move the slats to the right away from the gate and just below the rollers, which are then rotated to move the stack on to a stack-receiving table, actuating a photo-electric cell 356 to restore the mechanism and raise the gate. Slidably supported on the frame 198 is an assembly 234 including a plate 234 which is reciprocated by an eccentric 251 to jog and align the front of the stack, while a pneumatic actuator 249 moves the plate clear of the stack before the stack is moved.
Patent GB-1233018-A (GB)
IPC: B64C1/00
Filed: 1968-12-18
Abstract: 1,233,018. Laminates. UNITED AIRCRAFT CORP. 18 Dec., 1968 [22 Jan., 1968], No. 60066/68. Heading B5N. [Also in Divisions B7 and F3] A honeycomb member which may be made of aluminium is reinforced by placing a piece of end-grain balsa wood adjacent the member so that the grain is parallel to the axes of the honeycomb cells and so that the piece covers one end of at least some of the open-ended cells of the honeycomb and pressing the wood into the honeycomb to fill at least some of the cells thereof. Adhesive such as epoxy resin may be applied to the surface of the wood after pressing into the cells to cause it to adhere to the honeycomb cell structure. Layers of non- porous sheet material such as fibre glass cloth, which may be impregnated with polyester or epoxy resins, may be adhered to the opposite faces of the reinforced honeycomb. This sandwich construction can be made to any desired contour by placing the balsa wood reinforced honeycomb into a contoured female die between layers of plastics impregnated fibre glass cloth, producing a vacuum about the structure by means of a conventional vacuum bag and placing the bag and its contents in an autoclave at desired pressure and temperature.
Patent GB-1250906-A (GB)
IPC: E04B2/78
Filed: 1968-11-20
Abstract: 1,250,906. Frame members for demountable partitions. C.E. ZWICKERT. 20 Nov., 1968 [22 Nov., 1967], No. 55112/68. Heading E1W. A post forming part of a demountable partition comprises a sectional member as shown in and defined by Fig. 1. L or F section members (see dotted lines in Fig. 1) are fitted in the grooves 1, 1', 2, 2' to form the completed columns (e.g. Fig. 4) the spaces between members F 1  and F 2  and L 1  and L 2  having panels P and V fitted therein. Various column or post constructions made from these components are disclosed. The panels may be glazing panels and the partition may contain a door frame.
Patent GB-1252407-A (GB)
IPC: B60T8/72
Filed: 1970-02-09
Abstract: 1,252,407. Measuring angular acceleration electrically. DAIMLER-BENZ A.G. Feb. 9, 1970 [Feb. 14, 1969], No.6117/70. Headings G1K and G1N. The angular acceleration of a rotating part 10, Fig. 1, is sensed by the angular twist of a torsion spring 12 carrying a mass 11. As a predetermined acceleration a peg 14 on the mass 11 closes a switch 15 on the part 10 to short-circuit the rotating secondary winding 23 of a transformer 17 whose stationary primary winding 19 senses the change in impedance to operate an alarm. In another embodiment, Fig.4, the mass 11 positions a metal plate 25 relative to a coil 24 in accordance with the angular acceleration to vary the impedance of transformer 17. Thus a transistor T 1  oscillates when the impedance is high and ceases to oscillate when the impedance is low. The oscillations are picked up by a winding 26 to'determine the voltage at a point A, which controls the conditions of a transistor T 2  with a load RL in its output circuit.
Patent GB-1253052-A (GB)
IPC: B41F15/08
Filed: 1968-07-08
Abstract: 1,253,052. Stencilling apparatus; selective printing. FUNDITOR Ltd. 8 July, 1969 [8 July, 1968], No. 32539/68. Headings B6C and B6F. Stencil plates 34 are linked end to end to form an endless band and drive 40 operates to bring a selected plate 34 to a position where spray 76 operates to produce a stencilled image on, for example, a wood or metal article. Several bands of stencil plates may be mounted side by side. The plates may carry letters instead of or as well as numerals and the bands may be individually moved by separate drives 40, each drive comprising a ratchet wheel and two pawls, one of which is moved pneumatically. The number of teeth on the ratchet wheel is the same as the number of plates 34 in the associated bands, and electromagnetically actuated switches or paired contacts actuate indicators to display which stencil plates are in printing position. The stencil plates may be changed under keyboard control, or may change by a preselected number between successive stencilling operations. In use the spray 76 traverses a row of stencil plates, sliding on rods 78. Brushes 84 clean the stencil plates before they pass in front of spray 76.
Patent GB-1256795-A (GB)
IPC: F16K5/22
Filed: 1969-03-25
Abstract: 1,256,795. Valves. ACF. INDUSTRIES Inc. 25 March, 1969 [8 April, 1968], No. 15513/69. Heading F2V. A rotary ball valve has upstream and downstream seats 78 each urged by a spring 77 against the ball 34 and provided with a seal 84 received in a recess between the seat proper and a retainer 80. Each seal is provided with lubricant from a connection 94 via passages 92, groove 126, passages 128, and knurling (131) on the outer periphery of the retainer 80. A ring 106 with inner and outer peripheral seals in grooves and having a through port 124 permits a sealing connection between the passage 92 and groove 126 even when the ring moves axially under fluid pressure in the recess between the seat and valve body. The seal 84 is positioned radially so that fluid pressure in the passageway 15 and in the valve chamber 14 acts to force the seat against the ball. In a modification the seal between the seat and the ring is by spaced seals in grooves in the seat and the axially outer seal on the outer periphery of the ring is free to move on a projection of the ring to seal against a body shoulder.
Patent GB-1257942-A (GB)
IPC: H01L21/329
Filed: 1969-09-17
Abstract: 1,257,942. Semi-conductor devices. SONY CORP. 17 Sept., 1969 [18 Sept., 1968], No. 45865/69. Heading H1K. A pn-junction 106 having a relatively high breakdown voltage due to its large crosssectional radius of curvature is produced in an n(p)-type single crystal semi-conductor substrate 101 by diffusion of p(n)-type impurities through a polycrystalline semi-conductor layer 103. The layer 103 may be vapour deposited or sputtered on to the substrate 101 either directly or over a low-temperature deposited polycrystalline layer, a sand-blasted, scratched or sputtered layer, or a thin layer of silicon dioxide, any of which layers will tend to nucleate polycrystalline growth in the layer 103. The vapours of SiCl 4  and AsCl 3  may be employed to deposit the layer 103. To form the diode shown, B is diffused through the layer 103 into the substrate 101 using an oxide or nitride mask 104, and an Al electrode 108 is applied. To form a transistor a second diffusion stage of an opposite conductivity-type impurity is carried out in the same way. The polycrystalline layer 103 may be removed after diffusion therethrough has taken place. The invention is also applicable to integrated circuit manufacture. Suitable semiconductor materials include Si, Ge and GaAs.
Patent GB-1258951-A (GB)
IPC: A61C1/14
Filed: 1969-07-24
Abstract: 1,258,951. Dental instrument. KALTENBACH & VOIGT. 24 July, 1969 [24 July, 1968; 30 May, 1969], No. 37367/69. Heading A5R. A dental instrument comprises a straight or angled dental handpiece comprising a hollow shank containing a clamping sleeve 3 of elastic material, and a tool 22 which may be held in the shank, such that one or more annular spaces are provided between the clamping sleeve and the shank, at least when the tool is not inserted, the internal diameter of the clamping sleeve being smaller in the region of the annular spaces than the diameter of the tool shank. The sleeve is constructed such that when the tool is inserted one or more further annular spaces 6 are provided between the sleeve and the tool and the sleeve abuts the shank wall adjacent the further annular spaces. In one embodiment clamping tongues 33 are provided by longitudinal slots (not shown) in the clamping sleeve. The clamping sleeve 3 may comprise a metal alloy such as bronze or copper-beryllium. The dental instrument may comprise a turbine handpiece holding a drill, or a handpiece with a mirror held in the hollow shank.
Patent GB-1259573-A (GB)
IPC: A63D5/04
Filed: 1970-01-27
Abstract: 1,259,573. Skittle alleys. BRUNSWICK CORP. 27 Jan., 1970, No. 4000/70. Heading A6D. [Also in Division G4] In a game of skittles in a bowling alley the location of the remaining pins following the rolling of the first ball in a frame which knocks down the head pin i.e. a "split", are automatically detected and recorded on a score sheet. Alternatively means are provided if the head pin is standing for preventing any detection or recording.
Patent GB-1264430-A (GB)
IPC: C01G37/033
Filed: 1970-04-17
Abstract: 1,264,430. Chromic acid. DIAMOND SHAMROCK CORP. 17 April, 1970 [18 April, 1969], No. 18529/70. Heading C1A. A process for producing purified chromic acid comprises establishing a molten heel of bisulphate in a melter-decanter unit (1), continuously introducing crude chromic acid into the molten bisulphate, agitating and heating to maintain molten, whereby the chromic acid settles to the bottom and is withdrawn from the bottom by means of siphon 9 while waste bisulphate is withdrawn from an overflow tube. The retention time may be varied by adjusting the position of the take-off tube and the chromic acid may be added as crude chromic acid or as sodium bichromate and sulphuric acid. In the apparatus (see drawing), the stainless steel vessel 1 is heated by means of strip heaters 3 and has a well 5 for the chromic acid layer 7, and carries a Y-shaped chromic acid exit tube 9 having one arm extending through the bottom of the well and the second arm extending to a point just above the bottom of the well, the tube being adjustable vertically. The bisulphate overflow tube 13 is likewise adjustable and is screened by a baffle 23. A vibratory feed shoot 17 is used to supply chromic acid crystals.
Patent GB-1264626-A (GB)
IPC: F16D65/22
Filed: 1969-01-20
Abstract: 1,264,626. Slave cylinders; adjusting internal acting brake shoes. GIRLING Ltd. 20 Jan., 1970 [20 Jan., 1969], No. 3223/69. Headings F2E and F2F. A dual slave cylinder for applying brake shoes (not shown) comprises a cylinder body 10 housing a pair of opposed actuating pistons 13, 14 at opposite ends of the cylinder, a pair of intermediate floating pistons 18, 19 which in co-operation with pistons 13, 14 divide the cylinder into two working chambers 26, 27 and resilient means acting between the intermediate pistons 18, 19 and tending to urge them apart. As shown in Fig. 1, the resilient means is in the form of a Belleville washer 24 and the intermediate pistons 18, 19 have a spigot-socket connection 22, 23. Pressure inlets 11, 12 communicate with chambers 26, 27 and a space 28 between the pistons 18, 19 is communicated with atmosphere via a vent hole 29. As shown in Fig. 2, the resilient means comprises a coil compression spring 30, and the slave cylinder is constructed so that the position of the pistons are adjusted as wear compensating adjustment of the brake shoes takes place. In both embodiments the effective area over which the two intermediate pistons 18, 19 are exposed to atmospheric pressure is the full area of the cylinder and should one of the hydraulic systems fail the brakes are applied by pressure in the other system, the pistons 18, 19 moving as a unit.
Patent GB-1264692-A (GB)
IPC: C09C1/58
Filed: 1969-09-08
Abstract: 1,264,692. Pelletizing apparatus. PHILLIPS PETROLEUM CO. 8 Sept., 1969 [9 Sept., 1968], No. 44284/69. Heading B5A. [Also in Division C1] A pelletizer 8 comprises an elongate casing having an inlet 19 for material to be pelletized and an outlet 30 for pelletized material, and a shaft 21 rotatably mounted axially in the casing and carrying a plurality of pelletizing pins 27, the rotatable shaft 21 comprising an inner member with a sleeve 25 coaxially mounted therearound and spaced therefrom with one end positioned within the casing and the other end outside thereby providing a passageway 34 for the extraction of gases.
Patent GB-1265580-A (GB)
IPC: C01F11/46
Filed: 1969-05-23
Abstract: 1,265,580. Phosphoric acid; calcium sulphate agglomerates. CANADIAN PATENTS & DEVELOPMENT Ltd. 23 May, 1969 [10 July, 1968], No. 26536/69. Heading C1A. Phosphoric acid is separated from a suspension of gelatinous or finely divided calcium sulphate by agitating the suspension with a surfactant which is a straight or branched chain alkyl benzene sulphonic acid or salt thereof, a straight chain alkyl sulphate or a petroleun sulphonate and with a bridging liquid comprising a petroleum or other hydrocarbon liquid until agglomerates of precipitate form. The agitation preferably comprises a horizontal reciprocating motion followed by a rolling motion of slower speed. The surfactant is preferably used in an amount of 0À1-4% wt. based on the calcium sulphate. The bridging liquid, preferably in an amount of from 10-150% vol. based on the calcium sulphate, may be naphtha, kerosene, fuel oil, gas oil or a petroleum aliphatic solvent. The suspension may be formed by reacting phosphate rock with concentrated phosphoric acid and the resultant superphosphate suspension reacted with sulphuric acid.
Patent GB-1266316-A (GB)
IPC: F23D14/00
Filed: 1970-05-28
Abstract: 1,266,316. Swirl burner. DUNHAM-BUSH Inc. 28 May, 1970, No. 25686/70. Heading F4T.  A gas or vapour burner 10 includes a cylindrical casing with an open discharge end disposed adjacent a combustion zone and a closed end, a fuel inlet tube 29 and an air inlet opening 20 for supplying pressurized air to mix with the fuel at a mixing zone, a truncated conical annulus 36 within the casing adjacent the open end and having a centre opening (36a) and fluid directing slots 35, and a plurality of concentric radially-spaced partition rings 25, 26, 27 between the annulus 36 and the closed end and coactive with the annulus 36 to form three discharge streams each from the air/fuel mixture ; a first inner non-swirling stream directed through the centre opening 36a of the annulus 36, a second rapidly swirling stream directed through slots 35, and a third non-swirling converging outer stream directed through the annular orifice 37. The burner 10 may be mounted against one wall of a heat exchanger 11 in a furnace casing 15 and be supplied with air by blower 16, the air entering intake manifold 21 through opening 20 and passing through adjustable orifices 24a, 23a into annular air chamber 32 thence dividing into two streams in ports 30 and 31 respectively. Ignition may be effected by discharge electrodes 40.
Patent GB-1266743-A (GB)
IPC: G07F5/08
Filed: 1969-06-07
Abstract: 1,266,743. Coin-freed apparatus; coin testing; coin sorting. BRECKNELL DOLMAN & ROGERS Ltd. 22 May, 1970 [7 June, 1969], No. 28920/69. Addition to 1,255,492. Headings G4V and G4X. The apparatus of parent Specification has been modified by providing a rectangular slot 200 in each coin space 14, and a cranked lever 201 disposed at the rear of disc 10 arranged so that the projection 203 on the lever projects through the apertures 200 and stands proud of the front face 204 of the disc when solenoid 193 is operated by a signal from a totalizer (Fig. IV, not shown) indicating that sufficient money has been inserted into the device to complete a transaction. The projection deflects further coins from the disc to a bunch hopper before they are tested and the coins are recirculated permitting subsequent transactions to take place. It is therefore possible to purchase, for example, a number of tickets by inserting the total sum required at the start of the operation.
Patent GB-1288611-A (GB)
IPC: B23K9/00
Filed: 1969-10-15
Abstract: 1288611 Cutting by fusion ARCAIR CO 15 Oct 1969 [16 Oct 1968] 50623/69 Heading B3V [Also in Division H5] A cutting and gouging torch 10 includes an electrode supporting head 19, rotatably mounted in a frusto-conical seat 18 provided by an elongate metal body 12, through which current is supplied to a carbon electrode clamped in a groove 24 of the head 19, and one or more orifices 26 provided in the upper cylindrical sidewalls 19a of the head and connected to an air supply passage 16 extending through the metal body 12 via an annular passage 22 in the head 19, such that high pressure air is directed from the orifices 26 along the electrode surface to blow molten metal from beneath the electrode tip when an arc is struck between the tip and a workpiece (not shown). A swivel coupling arrangement for the air hose 45 and electric cable 46 is described in detail. A sliding spool valve 29, Fig. 4 (not shown), is provided across air passage 16. An insulating handle 11 surrounds the metal body 12 on which is pivoted the electrode clamping arm 36.