baber/WOPTO huggingface dataset:
Patent GB-873293-A (GB)
Title: Improvements in or relating to packaging machinery
IPC: B65B43/30
Filed: 1959-02-25
Abstract: 873,293. Packaging machines. ARENCO Ltd., and LLOYD, E. J. March 3, 1960 [Feb. 25, 1959], No. 6599/59. Class 94(1). A machine for packing material in bags comprises a pair of arms 10, 11 slidably but non-rotatably mounted on a shaft 14, suction means 15 facing each other on the arms for gripping opposite faces of a bag, a pair of cams 25, 26 engaging the arms or parts attached thereto to cause the arms to slide on the shaft as it turns, and springs 22, 23 for keeping the arms or the parts attached thereto in contact with the cams 25, 26, the arrangement being such that the suction means 15 grip an unopened bag in one angular position of the shaft and are moved apart as it is turned to another position to hold the bag open to receive the material. The arms 10, 11 are mounted on blocks 12, 13 respectively slidable on the shaft 14. Cam rollers 27 on the arms 10, 11 and cam rollers 28 on the blocks 12, 13 engage the cams 25, 26 respectively. An unopened bag 16 fed from a stack by a suction gripper is gripped by the suction cups 15. As the shaft 14 rotates the rollers 27, 28 are forced apart by the cams 25, 26 to move the arms 10, 11 apart to open the bag and put it on the filling nozzle 18 having members 19, 20 pivoted at 21 so that they can be swung apart to grip the mouth of the opened bag 17. A projection 32, Fig. 4, on the block 13 slides in a slot 31 on a member 30 pivoted to the block 12 and urged anti-clockwise by a spring 34. As the blocks 12, 13 move apart, a shoulder 33 engages the projection 32. After the suction has been released the latch holds the arms 10, 11 apart so that they clear the bag 17 on the nozzle 18 as they return to their lowest position. As the arms approach this position the member 30 abuts against a fixed pin 36, Fig. 5 (not shown), to release the latch. The cams 25, 26 may be interchangeable for different sizes of bag.
Patent GB-1410895-A (GB)
Title: Gyrocompasses
IPC: G01C19/38
Filed: 1973-02-09
Abstract: 1410895 Gyrocompasses TOKYO KEIKI K K 9 Feb 1973 [12 Feb 1972] 6624/73 Heading G1C A gyrocompass comprising a rotor housed in a casing is provided with a damping system for applying to the rotor about a substantially vertical axis a torque which is proportional to the inclination angle of the rotor spin axis relative to a horizontal plane # when such angle # varies sinusoidally but which is zero for constant values of such angle. The damping system may be purely mechanical in which case it may comprise a pendulous weight (503 or 503') Figs. 11A, 11B and 14 (not shown), arranged within a viscous fluid, the effect of such weight, either alone as in (Fig. 14), or in combination with a fixed weight (500) in Figs. (11A, 11B), providing a torque about a substantially vertical axis when # varies and zero torque when # is constant. Alternatively, the damping system may be electrical in which case the inclination angle # is converted into an electrical signal which is applied to an appropriate circuit to obtain a signal proportional to time differentiation and such signal is applied as torque to the gyro by means of a torque or by twisting a suspension wire. As an example, Fig. 5, an operational amplifier 106 having a transfer function characteristic indicated where S is the Laplace operator receives an input proportional to # by way of a displacement detector 6 and an A.C.-D.C. converter. The output of the amplifier 106 supplements a signal proportional to the angle # of the gyro spin axis relative to the meridian but only when # is varying sinusoidally and not when it is a constant. The gyrocompass to which such a damping system is applied may comprise a tank 2, Fig. 2, which supports by way of a suspension wire 3, a gyro case 1 containing the rotor, the tank containing damping oil 7 and being mounted on gimbal rings 12 and 16 within a housing 24 provided with a read-out location 22. An electromagnetic deviation detector 6 senses angular deviations about the axes 8, 8' and 17, 17' between the case 1 and the tank 2 to provide control signals to servomotors 10 and 19 which are actuated to bring the case 1 and tank 2 back to correct alignment, the servomotor 19 being also provided with a "#" signal, as previously described, to damp oscillations of the case 1. The "#" angle is detected by the detector 6 which, due to the suspension wire 3, will provide a signal proportional to the difference in distance of the detector parts 4N, 5N and 4S, 5S and thus proportional to #. In alternative embodiments, the gyrocompass may comprise a north seeking device in the form of a liquid ballistic arrangement and may be provided with an electrolyte level (207), Fig. 7 (not shown), for supplying the # signal or the gyrocompass may be provided with a floating gyro case instead of a suspended one and torques (301, 302) Fig. 8 (not shown).
Patent GB-482481-A (GB)
Title: Improvements in or relating to milling machines for grain
IPC: B02C4/38
Filed: 1937-03-06
Abstract: 482,481. Roller mills. SIMON, Ltd., H., and FREROTTE, A. March 6, 1937, No. 6702. Convention date, July 25, 1936. [Class 59] In a roller mill the gear wheel of the movable roller meshes with a pinion which is so located that the short arcuate path of the movement of the axis of the roller during adjustment is substantially parallel to the common tangent of the contacting pitch circles of the pinion and gear wheel. As shown the moving roller 2 is carried on an arm 21 pivoted at 18 and is movable relatively to the fixed roller 3 by an arm 15 operating an eccentric. A motor 9a on casing 5 pivoted at 6 drives a pinion 8 engaging a gear wheel 10 on the roller 3 and a gear wheel 12 affixed to a pinion 9 which is in mesh with a gear wheel 14 on the movable roller 2. An upper casing 7 is secured to the casing 5 to enclose the gear wheels, the lower casing containing the oil, which is still retained therein when the casing is dropped against stops 20, also carrying the motor 9a and gears 8, 9, 12. The axes of the pivot 18, roller 2 and gears 9, 12 lie on a straight line which is at right-angles to the line joining the axes of the rollers 2, 3 whereby movement of the arm 21 to adjust the clearance between the rollers moves the point of contact of the pitch circles of the gears 9, 14 substantially along a tangent to the pitch circles and hence parallel to the line joining the axis of the rollers whereby the mesh of the gear teeth remain substantially constant. Specification 472,028 is referred to.
Patent GB-374123-A (GB)
Title: Improvements in or relating to the vulcanisation of rubber
IPC: C08K5/00
Filed: 1931-03-04
Abstract: The reaction products of mercaptobenzthiazole and an aromatic amine (preferably a primary amine) are used as one component of a mixed vulcanization accelerator for rubber.  There is described the condensation of (1) mercaptobenzthiazole (2 mols.) with p.p<1>-diaminodiphenylmethane (1 mol.), (ii) mercaptobenzthiazole (1 mol.) with b -naphthylamine (1 mol.), (iii) mercaptobenzthiazole (1 mol.) with diphenylamine (1 mol.), (iv) mercaptobenzthiazole (2 mols.) with p-phenylenediamine (1 mol.), and (v) mercaptobenzthiazole (3 mols.) with 2 : 4-diaminodiphenylamine (1 mol.).  Specification 286,749, [Class 2 (iii), Dyes &c.], is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) also claims the production of the above products; this subject-matter does not appear in the Specification as accepted.ALSO:Rubber is vulcanized in the presence of sulphur and a mixed accelerator containing a condensation product of an aromatic amine (preferably a primary amine) and a mercaptobenzthiazole together with a basic organic nitrogen-containing activating vulcanization accelerator. Illustrative details are (1) 2 mols. of mercaptobenzthiazole are condensed with p-p1-diaminodiphenylmethane (1 mol.) and this product employed together with diphenylguanidine in accelerating a rubber stock; (2) molar proportions of b - naphthylamine and mercaptobenzthiazole are condensed together and used in conjunction with diphenylguanidine in accelerating a rubber stock; (3) molar proportions of diphenylamine and mercaptobenzthiazole are condensed together and used in conjunction with diphenylguanidine in accelerating a rubber stock; (4) p-phenylenediamine (1 mol.) is condensed with mercaptobenzthiazole (2 mols.) and used in conjunction with diphenylguanidine in accelerating a rubber stock; (5) mercaptobenzthiazole (3 mols.) is condensed with 2 : 4-diaminodiphenylamine (1 mol.) and used in conjunction with diphenylguanidine, anhydroformaldehyde-aniline, thiocarbanilide, di-o-tolylguanidine, triphenylguanidine, hexamethylene-tetramine, the formaldehyde derivative of the reaction product of 3 mols. of acetaldehyde and 2 mols. of aniline, di-o-tolylthiourea, m-toluenediamine, or triphenylbiguanide, for acceleration of a rubber stock.  Tables illustrating the accelerative properties of these mixtures in vulcanizing rubber stocks are given in each case. Similar materials such as guttapercha, balata, and the like may also be vulcanized.  Specification 286,749, [Class 70, Indiarubber &c.], is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) also relates to the vulcanization of rubber and like materials in the presence of sulphur and an accelerator formed by reacting a mercaptobenzthiazole with an aromatic amine, and also claims the production of such acceleration.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1253724-A (GB)
Title: Process for producing urea
IPC: C01C1/02
Filed: 1969-02-07
Abstract: 1,253,724. Urea. SUMITOMO CHEMICAL CORP. 7 Feb., 1969 [12 Feb., 1968], No. 6791/69. Heading C2C. A process for the production of urea comprises (I) providing an ammonia synthesis zone from nitrogen and hydrogen in which there is maintained a pressure of 100 to 500 kg./cm.<SP>2</SP> and a temperature of 200-600 C., (II) providing a carbon dioxide absorption zone, (III) providing a urea formation zone from carbon dioxide and ammonia in which there is maintained a pressure of 120 to 400 kg./cm.<SP>2</SP> and a temperature of 160 to 230 C, (IV) providing an ammonia absorption zone, (V) contacting a first gas comprising an ammonia-containing gas from said ammonia synthesis zone with an absorbing liquid in said ammonia absorption zone, (VI) contacting the absorbing liquid resulting from step (V) with a second gas comprising a crude ammonia synthesis gas containing nitrogen, hydrogen and carbon dioxide in said carbon dioxide absorption zone, (VII) introducing the absorbing liquid from step (VI) into said urea formation zone, (VIII) recovering a solution of urea, and unreacted ammonia and carbon dioxide, from said urea formation zone, (IX) introducing the ammonia and carbon dioxide from step (VIII), in solid, liquid or gaseous form, into said urea formation zone and/or said ammonia absorption zone and/or said carbon dioxide absorption zone, (X) separating a gaseous component from said carbon dioxide absorption zone, (XI) introducing the gaseous component from step (X) into the said ammonia absorption zone and/or the said ammonia synthesis zone, (XII) separating a gaseous component from said ammonia absorption zone and (XIII) introducing at least part of the gaseous component from step (XII) into the said ammonia synthesis zone. Part of the gaseous component from step (XII) may also be used to strip the reaction solution from the urea formation zone. Absorbing liquids specified are water, aqueous urea, aqueous ammonium carbamate, aqueous or liquefied ammonia or the reaction liquid from the urea synthesis zone. Much of the carbon dioxide and ammonia in solution is in the form of ammonium carbamate.
Patent GB-565409-A (GB)
Title: Improvements in bolt and nut anchor plates
IPC: F16B37/04
Filed: 1943-04-29
Abstract: 565,409. Anchor nuts &c. PHILIDAS, Ltd., KING, R. D., WOOD, N. F., and MASON, A. O. April 29, 1943, No. 6800. [Class 89 (i)] An anchor plate for a nut having an axial extension has a shallow shelllike body portion 1 to fit the hexagonal part of the nut, the axial extension projecting through a circular opening, laterally projecting flanges 2 being perforated at 3 for fastening to the member with which the plate is to be used. The hexagonal portion may be tapered to clamp the nut. According to the Provisional Specification, openings may be cut to expose the side faces of the nut and the shell may be of skeleton or strap form, and the anchor plate may be applied to bolts.
Patent GB-221160-A (GB)
Title: Improvements in or relating to hoisting devices
IPC: B61D47/00
Filed: 1924-03-17
Abstract: 221,160. Hughes, J., and Thomas, D. L. March 17, 1924. Overhead supports. - Portable hoisting apparatus particularly suitable for handling timbering in mine galleries comprises an extending pillar h, p, and a winch e adapted to be readily mounted on opposite ends of a tram or tub, the pillar resting upon the ground and serving as a crane-post. The winch is carried on a bracket c with angle-plate d by which it is hung on the end of the tram, and the bracket is secured to the draw-bar b by a shackle f and bolt g. The pillar is secured to the tram by a clamp l carrying an angle plate m which rests on the end of the tram, and by a clamp n carrying a pin to engage in the shackle-hole of the draw-bar b. The extending portion p of the pillar is provided with an adjustable clamp p<1> to rest upon the top flange k of the post h. The head-piece q of the pillar carries the upper block t of the hoisting tackle and a guide-sheave r. A second guide-sheave w secured on the pillar leads the hoisting rope parallel to the pillar so as to avoid bending strains.
Patent GB-809422-A (GB)
Title: Improvements in or relating to electrically heated dispensing devices
IPC: A47F1/03
Filed: 1956-03-05
Abstract: 809,422. Electrically heated containers. AYRES, L. P. June 5, 1957 [March 5, 1956], No. 6859/56. Class 39(3) [Also in Group XVIII] A dispensing device for nuts and other food of the kind comprising a glass or other transparent container 1 attached to a metal base 2 containing a mechanism delivering measured quantities of material from the container through a delivery opening 9 in the base has an electric resistance heater 10 so attached to the external surface of a bottom wall of the base of the device that it heats the material by conduction of heat through the bottom wall. The heater 10 is attached by a strap 11 to a base wall 6, and supply wires 12 pass therefrom to a supply socket 13 in a side wall of the base. The dispensing mechanism may be a rotatable disc mounted between upper and lower horizontal walls in the base, the upper wall having an opening through which material passes to a pocket in the disc, and the lower wall 6 having an opening by which the material is discharged through a shoot 7 when the disc is moved by a projecting lever 8. A coin-freed mechanism may control operation of the disc. The container 1 has a removable lid 3 held in place by a bolt 4 passing through a tube 5 by which the container 1 is clamped to the base 2. The bolt 4 may be of semi-circular cross section to allow wires 14 from a socket 13 to pass up through the tube 5 to a lamp mounted in a transparent cylinder 16 between the container 1 and the lid 3.
Patent GB-417827-A (GB)
Title: Improvements in and relating to grinding or abrading discs
IPC: B24D5/04
Filed: 1934-03-05
Abstract: 417,827. Grinding-wheels. KRUG, C., 4, Cretzschmarstrasse, Frankforton-Main, Germany. March 5, 1934, No. 6973. [Class 60.] A grinding-wheel 1 has an annular zone 2 surrounding the central aperture 4 impregnated with synthetic resin, which is hardened, thereby increasing the strength and resistance to fracture of the wheel.
Patent GB-826346-A (GB)
Title: Improvements in or relating to apparatus for manipulating aircraft
IPC: B64F1/22
Filed: 1955-03-09
Abstract: 826,346. Vehicle movers. SHARP, J. R., KAYE, E., and ARNOT, A. E. R. March 9, 1956 [March 9, 1955], No. 6978/55. Class 79(1) A ring 11 for connecting an aircraft wheel 14 to an aircraft manoeuvring trolley (not shown) comprises a hollow central portion fitting the underside of the aircraft wheel, means for gripping the upper part of the wheel connected to opposite sides of the central position, and a smooth surrounding surface adapted to fit against and revolve on the trolley. As shown the ring 11 comprises halves pivoted together at 13 and having a latch 22. The ring halves have upper and lower flanges 20, 21 adapted to co-operate with rollers on the trolley, and brackets 30 carrying members 31 for seating the wheel, and legs 28. Lugs 15 on the ring receive pins 16 carrying a hinge shackle 17 and a hook 29 co-operating with a chain 18 to hold the aircraft wheel 14 on the ring. The chain may be replaced by a belt. Specifications 826,344 and 826,345 are referred to.
Patent GB-807560-A (GB)
Title: Improvements in or relating to gramophone record-changing mechanisms
Inventor: COSTA HARRY DA
IPC: G11B17/16
Filed: 1956-03-06
Abstract: 807,560. Magazine gramophones. PLESSEY CO. Ltd. Feb. 25, 1957 [March 6, 1956], No. 7004/56. Class 40 (2). A record-changing mechanism of the straight centre-spindle type. The actuating member 6 is of U-section and runs in a groove 2 in the spindle 1. At the upper end of the member 6 are enlarged flanges 8 with elongated holes 9. Part of the member is cut away to form aperture 10. The flanges 8 enclose a cam lever 11 pivoting about a pin 3, fixed in the spindle 1 and also passing through the holes 9. On upward movement of member 6, portion 7 co-operates with cam surface 19, tilts cam lever 11 and moves the lowest record 20 to release it. The remaining records fall on to the nose 18 of lever 11 and are lowered on to shelf 17 when rod 6 retracts. Records are guided on to the shelf 17 by lever 22 running on pins 4 and 5 fixed in the spindle. When lifting records off the spindle this lever retracts to the position shown in dotted lines in Fig. 3. Specification 663,679 is referred to.
Patent GB-205430-A (GB)
Title: Improved apparatus for washing material which has been separated by centrifugal action
IPC: B04B15/12
Filed: 1923-03-12
Abstract: 205,430. Chemische Fabrik Griesheim- Elektron, and Sander, F. March 12, 1923. Addition to 187,429. Density separators.-In centrifugal separators of the kind described in the parent Specification, an insertion of wire-work c supporting the filtercloth d or a layer of granular material e held in place by centrifugal action, is employed to furnish distributing channels for the washing liquid. The liquid is admitted to a central opening and passes to the distributing layer through pipes k. Suitable granular material consists of substances such as coarse sand, gravel and coke, and is covered with a finer layer and then with filtering material such as fine sand, paper-pulp, glass wool &c. These materials are arranged in layers by rotation of the drum. In order to prevent collapse of the filtering layer, the drum is not stopped until coated with a dried layer of the material to be filtered, this layer being removed by scraping after re-starting of the drum.
Patent GB-804162-A (GB)
Title: Organopolysiloxane impregnating agents for textiles
IPC: D06M15/643
Filed: 1955-03-10
Abstract: A textile waterproofing composition comprises a solution in an organic solvent of a mixture of (1) an organopolysiloxane oil of the formula <FORM:0804162/IV (a)/1> , in which each R is a hydrocarbon radical which may contain halogen substituents, in which some of the R radicals may be replaced by alkoxy, aryloxy or hydroxy radicals, and in which n is 1.8 to 2.5; (2) an organopolysiloxane resin having the formula <FORM:0804162/IV (a)/2> in which m is 1.0 to 1.7 and (3) a compound of titanium or zirconium with an aliphatic compound possessing the property of keto-enol tautomerism.  The catalyst (3) may be a simple or complex compound of Ti or Zn with acetyl-acetone, acetoacetic acid or its methyl ester, malonic acid or a reaction product of Ti or Zr alcoholate with any of the aforementioned enols. Preferably the ingredients are used in amount (by weight) of 90-50 per cent of oil (1), 10 to 50 per cent of resin (2) and 5 to 20 per cent of catalyst (3), the latter amount being based on the total non-solvent ingredients.  Solvents specified are aromatic and chlorinated hydrocarbons and esters.  Methyl siloxane oils and resins are used in the examples.
Patent GB-1362936-A (GB)
Title: Silver halide products and their application
IPC: G03C8/42
Filed: 1972-02-16
Abstract: 1362936 Encapsulating silver halide grains with polymers POLAROID CORP 16 Feb 1972 [17 Feb 1971] 7199/72 Heading C3P [Also in Division G2] Microcapsules suitable for use in photographic processes comprise a silver halide grain surrounded by a synthetic polymeric layer of substantially uniform thickness. The microcapsules may include a layer of gelatine between the grain and polymeric layer, the silver halide may be optically, chemically or panchromatically sensitized, and the polymeric layer may include a colour-providing substance; e.g. a dye developer. Also a material such as silica or diatomaceous earth may be incorporated into the polymeric layer to increase the permeability of the microcapsule wall. The polymeric layer may be derived from an ethylenically unsaturated monomer such as diacetone acrylamide, pstyrene sulphonamide, 1-vinylimidazole and its 2-methyl derivative, sodium methacrylate, vinyl chloride, acrylonitrile, styrene, butadiene, ethylene and propylene. The microcapsules are suitably prepared by polymerizing an ethylenically unsaturated monomer around silver halide grains under such conditions that polymerization occurs substantially only on the grains. The monomer is preferably dissolved in a solvent, e.g. water, and the silver halide grains are suitably dispersed in an aqueous medium, e.g. as a gelatine-silverhalide emulsion. A free radical initiator such as eerie ammonium nitrate or H 2 O 2 /ferrous nitrate is preferably present. In the example polymerization is effected by reacting a stream comprising water, hydrogen peroxide and diacetone acrylamide (pH of stream = 4À8) with a stream comprising water, gelatine-silver bromide emulsion and ferrous nitrate (pH of stream = 4À7) and separating the microcapsules formed by decantation.
Patent GB-212121-A (GB)
Title: Electric furnace melting of manganese steel scrap
IPC: C21C5/52
Filed: 1923-03-13
Abstract: 212,121. Marks, E. C. R., (American Manganese Steel Co.). March 13, 1923. Alloys.-A process of melting manganese steel comprises subjecting steel to an arc developed in an electric furnace by a wattage that is, initially, up to furnace capacity, and maintaining this power supply to bring the mass quickly to molten state and diminish oxidation of the manganese. A basic slag is applied as the bath approaches the melting point. Specification 134,917 is referred to.