baber/WOPTO huggingface dataset:
Patent GB-1227254-A (GB)
IPC: B65G25/00
Filed: 1968-08-07
Abstract: 1,227,254. Reciprocating conveyers. SIMPLEX CORP. 7 Aug., 1968 [22 Aug., 1967], No. 32155/70. Divided out of 1,227,253. Heading B8A. The subject matter is substantially the same as that of Specification 1,227,253 but the claim is directed to the arrangement and operation, in a transfer system, of article carriers pivoted to an elongated slide, there being means for raising selected carriers to elevated, operative positions and for returning the carriers to lower idle positions on the slide. The sensing and control means specified in the parent Specification may be electrical.
Patent GB-1228276-A (GB)
IPC: D21B1/32
Filed: 1969-04-22
Abstract: 1,228,276. Froth flotation. J. M. VOITH G.m.b.H. 22 April, 1969 [22 April, 1968], No. 20615/69. Heading B2H. Fibre material is recovered from plastics coated or plastics-containing waste paper, waste board or like waste paper product by disintegrating the waste paper product in water by mechanical working, detaching the fibre material from the plastics, producing a fibre suspension, segregating from the suspension the large and medium sized pieces of plastics and other impurities, and thereafter segregating the small pieces of plastics from the suspension by a flotation process. As shown, waste paper to be processed is fed by means of a conveyor belt 5 into a pulping machine 1. Cold or warm water from a pipe 4 and soft soap (i.e. a soap containing potassium rather than sodium salts) as a flotation agent is added to the machine 1. A screen 7 may be provided in the machine 1 for removing large impurities and large pieces of plastics from the pulp before it is discharged into a storage vat 10 from which it is pumped to a mixing box 12 and diluted with water added at 13. The pulp is then strained through a vibrating screen 15 where large and medium pieces of plastics are removed. The pulp containing small pieces of plastics then passes to a vessel 17 from which it may be fed directly to a flotation unit 20 for removal of the small pieces of plastics. The unit 20 comprises a mixing chamber 21 with a pipe 22 for diluting water, primary cells 23 and secondary cells 24. The finished pulp pipe 25 may be connected to a papermaking machine and the contaminated pulp pipe 26 to a thickener. When particles of higher specific gravity, such as metal particles, are to be separated from the pulp, these may be removed by a twostage hydrocyclone unit 30 connected between the vessel 17 and the flotation unit 20. Instead of a screen 7 being provided in the pulping machine 1, a vibrating screen may be arranged between the machine and the vat 10. Hydrocyclones may be connected downstream of the flotation unit for removal of fine particles of metal. When the waste paper contains printer's ink adhering to the fibre, this can be removed from the latter by adding sodium peroxide and water glass to the pulping machine.
Patent GB-1228970-A (GB)
IPC: A63B55/60
Filed: 1968-08-15
Abstract: 1,228,970. Golf club bag with wheels. R. BARCLAY. 14 Nov., 1969 [15 Aug., 1968], No. 39093/68. Heading A6D. A golf club bag 10 is provided with a pair of ground wheels 24, each carried 'by a pair of legs 22 secured at their upper ends to a bracket 23 secured to the bag and operated through a crank arm 21, links 19 and spindle 18 by means of a stick 16 having a handle 17 and pivotally attached to a pair of brackets 15 secured to the bag, to swing between an outer position when the stick 16 is pivoted upwardly by 180‹ and a retracted position when the stick lies adjacent to the bag, as shown. Pockets 25, 25a are provided at the sides of the bag above the retracted wheels.
Patent GB-1232808-A (GB)
IPC: A61K6/90
Filed: 1968-07-19
Abstract: 1,232,808. Plastic impression-taking compositions. COE LABORATORIES Inc. 19 July, 1968, No. 34574/68. Heading C3P. Plastic compositions adapted to take impressions, particularly anatomical impressions (e.g. of the mouth or ear), comprise a thermoplastic vinyl resin and a room temperature gelforming solvent system for the vinyl resin, which system comprises a benzyl radical-containing compound which is liquid at room temperature and which has a vapour pressure at room temperature not greater than 1À0 mm. mercury, and an oil extender which forms 20- 65% by volume of the solvent system, there being from 5 to 12 c.c. of solvent system per 10 grams of the vinyl resin. Preferred resins are low molecular weight methacrylate polymers or copolymers, e.g. polyethyl methacrylate, polyisobutyl methacrylate or ethyl methacrylate/butyl methacrylate copolymer, in small bead or granular form; such resins may be used in admixture with other vinyl resins, e.g. polyvinyl chloride, polyvinyl acetate or vinyl chloride-vinyl acetate copolymer. An anti-tack solid or powder, e.g. calcium carbonate, ultrafine silica or zinc stearate may suitably be included with the resin in a minor amount. Suitable as benzyl-containing liquids are benzyl alcohol and C-substituted derivatives thereof, benzyl thiol, benzyl-substituted aliphatic aldehydes, and benzyl chlorides, ketones, ethers, amines, cyanides and esters. The oil extender may be an alkyl aryl hydrocarbon oil, a naphthenic oil, a fixed oil or a vegetable oil (e.g. corn oil or cottonseed oil). To prevent "sweating out" of the aromatic hydrocarbon oils, a coupling agent may be added, e.g. certain benzyl alcohols, butyl benzoate, liquid alkyl phenols (e.g. amyl- and nonyl-phenols), hexadecyl alcohol and other alcohols having at least 10 carbon atoms, glycols and dibutyl phthalate. Other optional components include additional gel formers, e.g. relatively non-volatile etheralcohols, esters and higher molecular weight glycols; plasticizers such as dibenzyl sebacate and butyl benzyl phthalate; and odour-masking compounds, e.g. synthetic peppermint oil. For use, the composition may be stored in the form of a two-component pack, with the vinyl resin being packaged separately from the solvent system.
Patent GB-1237983-A (GB)
IPC: B65D83/16
Filed: 1969-11-03
Abstract: 1,237,983. Aerosol actuator assembly. UNION CARBIDE CORP. 3 Nov., 1969 [1 Nov., 1968; 22 Sept., 1969], No. 53707/69. Heading B2F. A multiorifice aerosol actuator assembly 10 comprises a main body 12, conduits 16, 20 integrally formed with the main body 12, and an insert 14 which defines between its surface and the surface of the conduit 20 a plurality of discharge conduits 18. Conduits 18 are produced by shaping, e.g. castellating, either or both the walls of conduit 20 and insert 14.
Patent GB-1239137-A (GB)
IPC: F16H9/16
Filed: 1969-06-16
Abstract: 1,239,137. Expanding-pulley gear. MEIER & CO. 16 June, 1969 [18 June, 1968], No. 30369/69. Heading F2D. In an expanding V-belt pulley gear wherein axially movable flanges 7, 7a of driving and driven pulleys are connected by arms 9 of a sleeve axially movable on a centre pin 13 by a screwed adjuster 41, 42 for conjoint axial movement of the flanges 7, 7a for ratio change, torqueresponsive camming balls 21, arranged between an overhanging hub 3 keyed fast on a driving motor shaft 16 and a pulley flange 8 mounted on a coaxial shaft 4 journalled at 23 in the hub 3, rotatably connect the pulley flange 8 to the driving hub 3 and apply a torque-responsive side-pressure on the V-belt to eliminate slip and prevent belt whip and vibration. Normal belt tension is adjusted by turning a sleeve 34 threaded in the lower arm 9 adjacent the flange 7a and locked in any setting by a nut 35. The bearings and slidable flanges &c. are lubricated via ducts 36, 37. In the modification of Fig. 2 (not shown) a further bearing (44) carried in a projecting spigot of a housing (45) additionally supports the overhanging hub 3.
Patent GB-1250515-A (GB)
IPC: E21D11/15
Filed: 1968-10-25
Abstract: 1,250,515. Tunnels &c. HOESCH A.G. 25 Oct., 1968 [12 Dec., 1967], No. 50673/68. Heading E1F. A supporting structure for underground curved tunnels, roads or shafts, comprises supporting frames 1 at an angle to one another and compensating frames 3 and/or 14 arranged to transmit thrust and/or pull between adjacent supporting frames and radially offset from the supporting frames so as to be in peripheral contact with the supporting frames around the complete circumference thereof. The supporting frames may be of channel cross-section having flanges with wedge-shaped lips la, 1b, may be circular or elliptical, may be in sections joined by straps extending parallel to the axis of the tunnel, and may be composed of steel, or concrete which may be reinforced or steel clad. The wedge surfaces of the compensating frames may be straight, as shown, or arched. Bolts 15 may be used to secure the frames 14 to the supporting frame. In the absence of the frames 14, the frames 3 may be held in place by spaced plates bolted to the supporting frames and contacting the sides of the channel parts of the adjacent supporting frames. In another embodiment both the supporting and compensating frames are of outwardly flared U-cross-section with the supporting and compensating frames being open towards the exterior and interior respectively of the tunnel. A sealant may be applied between the supporting and compensating frames, and between the sections of the supporting frames.
Patent GB-1250656-A (GB)
IPC: B23P19/08
Filed: 1968-11-21
Abstract: 1,250,656. Assembling screws and washers. INGRAMATIC SpA. 21 Nov., 1968 [1 Dec., 1967], No. 55240/68. Heading B3A. A device for assembling washers on to headed screws, nails or rivets comprises a conveyer 48 which carries the screws K orthogonally, a guide 70 for washers which is arcuate in form having a steep portion as the washers are engaged by the screws and curving so as to become parallel to the conveyer and a washer guide plate for guiding the washers to the guide 70 having a groove along its length and a lateral outlet for the washers. The conveyer may be a circular notched plate driven from a worm and pinion 68, 66 through a clutch 63, 62. In another embodiment the conveyer may be an endless belt which frictionally engages the heads of the screws which are slid along two laminµ which support the head of each screw and form a passage for the shanks thereof. In this embodiment the screws are spaced apart by a cam-operated plate before they reach the conveyer. A detector is provided to detect screws which have no washer assembled on them.
Patent GB-1250801-A (GB)
IPC: H03K5/08
Filed: 1968-11-07
Abstract: 1,250,801. Non-saturating transistor circuits. HONEYWELL Inc. 7 Nov., 1968 [8 Nov., 1967], No. 52849/68. Heading H3T. A transistor 12 with an emitter load such as a capacitor 10 has a unidirectionally-conducting clamping device such as a diode 38 connected between its base and a stabilized reference voltage at 20 which is smaller than the collector voltage supply 28 to avoid saturation. In the embodiment of Fig. 1 the transistor 12 is part of a monostable and normally conducts, as does a transistor 22, so that a capacitor 10 is charged to the supply voltage 28. A positive pulse produced by the differentiation at 44 of the output of a NAND gate 40 turns on a normally off transistor 16 which earths plate b of capacitor 10 through a diode 14, also turning off transistor 12; transistor 22 is turned off by the fall in potential of capacitor plate a which then starts to charge, during the unstable period, from the reference source 21 through a resistor 18 until transistor 22 again conducts, the positive potential of its collector during the unstable period maintaining the transistor 16 on, through a resistor 52. The stabilized reference source includes a Zener diode 30, and the diode 38 clamps the base of transistor 12 to the reference voltage when it turns on again, thus speeding the switching-on operation since the reference voltage is less (about two thirds) of the supply voltage towards which the capacitor 10 is charging through transistor 12. By preventing saturation of transistor 12 the diode 38 also speeds the switching-off operation. In a switching circuit (Fig. 2, not shown) a transistor (54) is rendered conductive or not according to the level of the input signal (from 56), and consequently one or other of two transistors (64, 66) connects a load to earth or to the supply voltage (60) respectively. The base of transistor (66) is clamped to a stabilized reference voltage (74) by a second emitter (66b) whose junction with the base acts as the clamping diode. In a digital-analogue converter (Fig. 3, not shown) a transistor (78) conducts if the inputs to two diodes (82, 80) are both positive, and turns off if either input goes negative, the relative levels of input and base voltages being determined by a Zener diode (76). The collector of transistor (78) causes one of two complementary transistors (92, 94) to conduct, according to its level, each of the transistors (92, 94) having a respective clamping diode (98, 100) connected to a positive and negative reference voltage, respectively.
Patent GB-1251059-A (GB)
IPC: G05B19/4103
Filed: 1968-12-19
Abstract: 1,251,059. Programmed control of machine tools. VYZKUMNY USTAV MATEMATICKYCH STROJU. Dec.19, 1968 [Dec.22, 1967], No. 60463/68. Heading G3N. A linear and circular interpolator for machine tools, adapted for correction of a programmed path according to cutter radius, comprises a controller connected to a converter and both connected to a basic radius memory the inverter being connected to a radius register which is connected to the controller. As shown, the selection of the two co-ordinate ones to be interpolated is effected by a memory 130, the contents of which are determined by' programme input data, controlling an output block 120. Also determined from the input data are the nature of the curve to be interpolated, which is stored in a memory 30, the end points of an interpolation section which are stored in a memory 40 and the radius of the basic curve in a memory 90. The circle co-ordinates of the basic radius are held in registers 60. During an interpolation, step changes occur in the contents of registers 60 and in the number in a deviation accumulator 70, which is set to zero at the beginning of an interpolation section. The magnitude of a step is held in a step register 80. The choice of co-ordinate to be changed in a given step and the sense of charge, are determined by a controller 10 in dependence on the curve signal from memory 30, the quadrant in which movement is to take place from registers 60 and the sign of the contents of accumulator 70. For a circular interpolation co-ordinates for a basic radius are stored in a memory 110 and modified in dependence on the ratio of basic radius to the programmed radius from register 90. When the interpolated circle co-ordinates change the contents of register 90 are added to those of a converter 100. When the contents of the converter 100 change from a negative to a positive value, the basic radius value is subtracted to provide, through the block 120, a pulse to one of the selected pair of outputs 121. For a linear interpolation, memory 50, register 90, converter 100 and memory 110 are out of action and the controller 10 in dependence on the signal from curve memory 30, which now corresponds to the requirements for a line, effects control of the output block 120 in dependence on the contents of the deviation accumulator 70 and , the end point value stored in memory 40. The controller 10 comprises a sign circuit 12, wherein is recorded during interpolation the sign of the accumulated deviation, and a watching circuit 11, responsive to co-ordinates from block 60 and memory 40, for stopping the interpolation and initiating supply of new data. The radius of the milling cutter is set in a memory 50 the contents of which corrects the programmed path by addition or subtraction from the contents of register 90.
Patent GB-1251258-A (GB)
IPC: C07D201/16
Filed: 1969-03-28
Abstract: 1,251,258. Recovery of caprolactam. BADISCHE ANILIN- & SODA-FABRIK A.G. 28 March, 1969 [29 March, 1968], No. 16387/69. Heading C2C. Caprolactam is recovered from the wash waters, obtained by treating polycaprolactam with water, by extraction using a solvent or mixture of solvents having a solubility of not more than 15% by weight in water at 20‹ C. having a partition coefficient at 25‹ C. for caprolactam in the solvent/water system of at least 0-2, and either a lower density than the aqueous phase or a higher density than the precipitated oligomers of caprolactam present, pure caprolactam being obtained from the separated solvent phase. The process is preferably performed in a continuous manner using countercurrent equipment which allows free movement of solids which precipitate. Suitable solvents are chloroform, methylene chloride, 1,1,2-trichloromethane, ethyl acetate, propyl acetate and butyl acetate.
Patent GB-1251755-A (GB)
IPC: H03G3/20
Filed: 1969-01-31
Abstract: 1,251,755. Automatic gain control. E. I. DU PONT DE NEMOURS & CO. 31 Jan., 1969 [9 Feb., 1968], No. 5476/69. Heading H4R. An amplifier 1, e.g. feeding a measuring instrument, has a circuit, 21, connected to its output, which detects excursions of the output beyond a predetermined limit and feeds pulses to a logic circuit 22 to switch in, sequentially on successive pulses, the negative feedback resistors, 5 to 8, connected between the amplifier output and amplifier input, to provide successive reductions in amplifier gain. As described the amplifier 1 is an operational amplifier, and the overload detector 21 shown in detail in Fig. 2, comprises a trigger circuit including transistors 27 and 35 with a trigger threshold set by Zener diode 31 so that the circuit triggers whenever the output of the amplifier, applied to terminal 29, exceeds the threshold. Operation of the trigger causes a positive pulse to be applied, via differentiating capacitor 41, to the logic circuit connected to terminal 42. The logic circuit comprises a number of " NAND " gates, Fig. 3 (not shown), which provide a negative output only if both inputs are positive. Gates 44, 47, 50, and 53 are initially providing a negative output, being reset to that condition by the operation of switches 55 to 58 in the absence of signal on the line from the detector 21. A positive pulse on the line from circuit 21 causes the output of gate 43 to go negative and triggers gate 44 to its positive output condition, which condition is held by the feedback through gate 45. The positive output of gate 44, via transistor 23, makes transistor 9 conductive, to switch in feedback resistor 5, and is also fed, via an R.C. delay to enable gate 46 to respond to the second positive pulse on the line from circuit 21. The second pulse similarly switches in the feedback resistor 6, and enables gate 49 to receive the third pulse. Thus successive pulses switch in successive resistors 5 to 8. The outputs of the gates 44, 47 &c. are also connected to a display unit 90 which indicates which gain condition is in use at any time.
Patent GB-1252840-A (GB)
IPC: F16H48/12
Filed: 1969-09-05
Abstract: 1,252,840. Differential gear; ratchet clutches. HY-TORQ CORP. 5 Sept., 1969 [11 Sept., 1968], No. 44125/69. Headings F2C and F2D. A motor-vehicle differential gear comprises two reversible one-way clutches with roller sets 50, 52 which jam between scalloped recesses 59, 60 of a driving casing 11 and cylindrical hubs 36, 38 on half-axles 32, 34, the rollers being carried in cages 54, 56 each of which has a P.T.F.E. "0"-ring 80, 82 in frictional engagement with the corresponding hub 36, 38 to move the released cage and rollers into a neutral position when their axle overruns, a further pair of P.T.F.E. "O"-rings 70, 72, frictionally engaging between the casing 11 and the cages 54, 56, tending to hold the cage in its overrunning position and damp out any tendency of the rollers to fluctuate or hop between their released and driven positions. A facial slot and tongue connection 57, 58 (Fig. 3) between the cages 54, 56 restricts the relative rotary movement of the cages to one half of their total movement between forward and reverse drive positions, thus preventing movement of the rollers of either one clutch beyond a central neutral position during differential overrun, but not preventing two-way drive during straight running. To minimize wear and scoring of the driving casing 11 and hubs 36, 38, the rollers 50, 52 are crowned.
Patent GB-1258169-A (GB)
IPC: H02M7/00
Filed: 1969-09-09
Abstract: 1,258,169. Static converting systems, protective arrangements. NAUCHNO-ISSLEDOVATELSKY INSTITUT POSTOYANNOGO TOKA. 9 Sept., 1969, No. 44518/69. Headings H2F and H2K. A rectifying station 1 (Fig. 1) including threephase uncontrolled rectifier bridges 12, 13 is linked by a D.C. transmission line 24 to an inverting station 2 comprising three phase inverter bridges 25, 26. Generators 10, 11 are connected to A.C. bus-bars 3 and supply the rectifying bridges 12, 13 via circuit breakers 16, 17. In the event of a fault in the bridge 12 or 13 causing excessive input current thereto, overcurrent protection means 19, 20 respectively will trip the appropriate circuit breaker 16 or 17. In the event of a short-circuit on the D.C. transmission line 24 the breakers 16, 17 are tripped by a unit 18 which receives inputs from a current transformer 21 and D.C. line voltage transformer 22. In addition, the inverter bridges include by-pass valves 29, 30 and by-pass switches 27, 28, and it is stated that if during operation one of these bridges is shunted the protection unit 18 operates to trip one of the breakers 16 or 17. The protection unit 18 comprises measuring members 46, 47 (Fig. 3) which receive the output from the voltage transformer 22 and current transformer 21 and determine the dV/dt and dI/dt. The outputs of 46, 47 are connected to respective inputs of a logical system 48 the output of which is fed to an actuator 49 to control the circuit breakers 16, 17. The inverter bridges are controlled, in response to the D.C. transmission line current sensed by a transformer 38, by means of a controller comprising a compounding arrangement 39 and ignition angle control unit 40 (described with reference to Fig. 2, not shown).
Patent GB-1259640-A (GB)
IPC: B25B23/145
Filed: 1969-12-22
Abstract: 1,259,640. Nut runners. GARDNERDENVER CO. 22 Dec., 1969 [24 April, 1969], No. 62473/69. Heading B3N. [Also in Division F1] A portable power-driven nut runner 10 includes a pneumatic motor 18 of the outwardlysliding radial-vane type in which to reduce the inertia torque the rotor 32 has axially-orientated grooves 91 between slots 86 for the vanes. A spindle 54 to which a screw-driver bit or wrench socket can be attached is coupled to a shaft 38 on the rotor by epicyclic speed-reducing gears 40, 46, 48 and a shaft 52. Air is supplied to the motor through a line 58, passages 60, 66, 68, a manually-operated valve 62 and a port 70. The spent air is discharged through ports 72, .an annular space 74, passages 76, 80, a space 78, and a muffler 82. Spacing of the rotor vanes is such as to prevent direct communication occurring between the ports 70, 72.
Patent GB-1288957-A (GB)
IPC: C21B7/10
Filed: 1969-10-20
Abstract: 1288957 Furnace linings DIDIER-WERKE AG 20 Oct 1969 [21 Oct 1968] 51421/69 Heading F4B The cavity between an outer steel casing 2 of a spray cooled blast furnace and its inner electrographite brick hearth lining 6, is filled by having a molten aluminium alloy 11 poured into it. Rammed carbon 10 may be inserted in the cavity between casing 2 and upper carbon brick hearth and side wall layers 7, 8. A chamotte hearth lining 9 is provided. The cavity to be filled with the molten metal is from 15 to 20 mm wide and may be segmentally subdivided by inserted metal strips. A further layer of poured metal (not shown) may cover the top of a metallic bottom plate 5 located above the foundation masonry 4, if additional bottom cooling means (not shown) for the furnace are provided.  (For Figure see next column)