baber/WOPTO huggingface dataset:
Patent GB-461637-A (GB)
Title: Improvements in packing for eggs and other fragile articles
IPC: B65D85/32
Filed: 1935-08-20
Abstract: 461,637. Boxes. GEDDES, W. M., and CLELAND, Ltd., W. W. Aug. 20, 1935. No. 23374. [Class 18] In the base of a container for eggs and other fragile articles, are provided transverse corrugated strips 1, alternating with strips 3, having upstanding bends 4 spaced opposite alternate hollows 5 of the corrugations. Interlocked transverse and longitudinal strips 6, 7, are so placed that in each compartment is provided a hollow for an egg, bounded by a pair of corrugations 2, and the edges of a pair of upstanding bends 4. Notches 8 may be provided in strips 6, to straddle the upstanding- bends, and strips 7 may also be notched, so that either the strips 6 or 7 may be placed longitudinally. The upstanding bends 4 may have a score, notch, or crease, formed in their top surface to accommodate the transverse strips 6. The width of the strips 1, 3, is about half the width of a compartment. The upstanding bends provided ventilation. The flat is preferably of cardboard and may be used with collapsable fillers of the usual type.
Patent GB-365024-A (GB)
Title: Improvements relating to lawn mowers
IPC: A01D34/62
Filed: 1931-08-20
Abstract: 365,024. Lawn-mowers. WEBB & CO., Ltd., H. C. and TAYLOR, F. W., Tame Road, Witton, Birmingham. Aug. 20, 1931, No. 23464. [Class 6 (ii).] In lawn-mowers wherein a fixed blade d may be adjusted for alignment or parallelism relatively to a rotary cutter, the blade d is carried by a transverse bar a projecting at one end through a slot h in a fixed part of the mower. The projecting end of the bar is engaged by an adjusting lever k pivoted to a fixed part of the mower, and the bar a is adapted to be secured in an adjusted position. Both ends may project through slots in fixed parts of the mower, and be engaged by adjusting levers. The ends of the bar may be reduced in diameter and one end may be inserted in a hole in one side-plate and the other end in the slot h in a side-plate b. The fixed blade d may be attached to a member c mounted on the bar a and carrying a grass deflector e. In addition to adjusting into alignment, rocking adjustment may be effected by a screw f and nuts g or by providing levers and slots at both sides. The bar a may be secured in an adjusted position in the slot by nuts and spring washers.
Patent GB-780633-A (GB)
Title: Improvements in or relating to shrinkage affecting devices for use in the casting ofmetal
Inventor: JENKINS WENDELL LLEWELYN
Filed: 1955-08-15
Abstract: 780,633. Metal-casting insert. CANTON CHAPLET & MFG. CO. Aug. 15, 1955, No. 23478/55. Class 83 (1). An element for affecting the shrinkage of molten metal in a mould cavity, comprises a channel- or trough-shaped body 10, 10a having divergent legs 12, 12a connected by a transversely-curved base, the end-surfaces of the body being inclined away from the base, and a prong 11 or prongs 11a extending from one or both ends of the base. The device is positioned in the mould by inserting the prong or prongs in the sand thereof, the open side of the channel being vertical or facing upwardly to avoid the entrapment of gas or steam-bubbles. The channel body may be of curved or angular shape.
Patent GB-808892-A (GB)
Title: Method of marking documents
IPC: G06K1/12
Filed: 1957-07-26
Abstract: 808,892. Preparing documents for sorting. STANDARD TELEPHONES & CABLES Ltd. July 26, 1957 [July 30, 1956], No. 23744/57. Class 106 (1). To prepare letters &c. for automatic sorting in post-offices they are first provided with a transparent film which is formed of a fluorescent, luminescent or radio-active material and formed with holes denoting destination &c. The film may be adhesive on one side and may be applied by a device as shown. The film 4 is in the form of a strip which carries a fluorescent, luminescent or radio-active layer, parts of which are removed at 8, e.g. by a punching device. The punching device is controlled by a keyboard 3 upon which the operator sets up destination data read from the letter when in the first position. The punched tape is applied by a device 7 which having stuck it on to the letter cuts off the requisite amount. The written address is still readable through the tape.
Patent GB-712525-A (GB)
Title: Improvements in and relating to trimethylol phenol compounds
IPC: C07C37/66
Filed: 1950-09-28
Abstract: The invention comprises crystalline sodium and barium 2 : 4 : 6-tris-(hydroxymethyl)-phenates, and the preparation thereof by reacting together sodium or barium hydroxide, phenol, and formaldehyde or paraformaldehyde, at a temperature not exceeding 65 DEG  C., diluting the reaction mixture with a water-soluble organic liquid selected from alcohols of 1-4 carbon atoms per molecule, acetone, dioxan, pyridine, diacetone alcohol and mixtures thereof, and separating the resulting crystalline precipitate from the liquid phase.  In examples: (1) phenol is reacted with aqueous caustic soda, the product is stirred with formalin, and the reaction mixture is then partially dehydrated in vacuo and the residue poured into ethanol; (2) aqueous caustic soda is added to a mixture of phenol and formalin, the reaction mixture is heated to 40 DEG  C. and ethanol is then added; (3) the reaction mixture in (2) is further heated to 60 DEG  C. and then poured into ethanol; (4) the reaction mixture in (2) is kept 7 days at 6 DEG  C. and then poured into ethanol; (5) an aqueous solution of barium hydroxide is added to a mixture of phenol and formalin with cooling to 30 DEG  C. or below, the reaction mixture is allowed to stand 24 hours at room temperature, and ethanol is then added; (6) aqueous caustic soda is added to a mixture of phenol and formalin, the reaction mixture is heated to 40 DEG  C., and n-propanol is then added.  To establish the identity of the sodium 2 : 4 : 6-tris-(hydroxymethyl)-phenate, the following compounds may be prepared therefrom:-  2 : 4 : 6 - Tris - (acetoxymethyl) - phenyl acetate by heating with acetic anhydride in pyridine.  Methoxytrimesic acid by warming with methyl iodide in methanol and oxidation of the resulting methyl ether with alkaline potassium permanganate.  1 - Allyloxy - 2 : 4 : 6 - tris - (butyroxymethyl) - benzene by heating in a sealed bottle with allyl chloride in methanol and refluxing the resulting allyl ether with butyric acid and acetic anhydride.  Specification 629,467 is referred to.
Patent GB-986620-A (GB)
Title: Improvement in production method for cement mortar or concrete
IPC: B28C5/00
Filed: 1961-06-30
Abstract: A method of making cement mortar or concrete comprises first mixing cement with water to make a paste which is then ground in a mill until the cement particles are less than 10 microns whereby the particles are substantially completely hydrated and sand or another aggregate is then added and mixed with this cement paste to form a mortar or concrete. Portland cement, silica cement, slag or hydraulic cement may be used.  In the example given, Portland cement and Toyoura sand are used to make a mortar.ALSO:A method of making cement mortar or concrete comprises first mixing cement with water to make a paste which is then ground in a mill until the cement particles are less than 10 microns whereby the particles are substantially completely hydrated and sand or another aggregate is then added and mixed with this cement paste to form a mortar or concrete.  Portland cement, silica cement, slag or hydraulic cement may be used.  In the example given, Portland cement and Toyoura sand are used to make a mortar.
Patent GB-517994-A (GB)
Title: Improvements in and relating to the manufacture of magnesium dust briquettes and theproduction of magnesium therefrom
IPC: C22B26/22
Filed: 1938-08-13
Abstract: 517,994. Magnesium. MAGNESIUM METAL CORPORATION, Ltd. (American Magnesium Metals Corporation). Aug. 13, 1938, No. 23941. Drawings to Specification. [Class 82 (i)] In the production of magnesium from the dust resulting from the reduction of magnesium oxide with carbon, the dust is briquetted under high pressure without addition of a binder, but with the addition of finely ground non-volatile residues from the previous distilling operations. The amount of residues added may be such as to provide a metal content of 35-40 per cent. in the mixture. For example, 30 per cent. of the material to be briquetted may be such residues. The briquettes may be used as resistance elements in an electric distillation furnace for obtaining the magnesium.
Patent GB-769581-A (GB)
Title: Improvements in sorting individual sheet metal strips moving one behind the other
IPC: B07C5/04
Filed: 1954-08-18
Abstract: 769,581. Photo - electric sheet sorters. UNGERER, F. Aug. 18, 1954 [May 12, 1954], No. 24078/54. Class 40 (3). Defective sheet metal strips are sorted from a succession of such strips on a conveyer by a testing device, a device spaced in the direction of movement for marking the defective sheets and a device still further spaced for responding to the marks and sorting out defective sheets. The testing device may be a radio-active thickness gauge, the marks may be coloured papers and the sorting device responding to these marks may be photo-electric. As shown, Fig. 1, sheet metal strip from a storage roll 1 is guided through a straightening device 4 to a thickness testing device 5. After passing through the thickness testing device the strip is passed to shears 6 where it is cut into individual lengths 7. The lengths are carried on a conveyer belt to marking devices 9, 10, 11. Device 9 is manually operated, devices 10 and 11 (see below) are operated by delayed impulses from the testing device. Device 10 marks oversize and device 11 undersize strip with pieces of distinctively coloured paper. Device 13 which may be photo-electric responds to the distinctively coloured marks to place the strip on one conveyer or the other. Marking device.-Defective plates are marked with small pieces of adhesive paper. When an impulse is received from the testing device solenoid 20 tilts lever 35 which through ratchet wheel 28 operates a driving roller 25 to pull paper from a storage roll 24. At the same time a knife 37 carried on the lever co-operates with a fixed knife to shear off a length of the paper. A rubber block 39 pivoted on the lever is so shaped that when it contacts the travelling strip it rotates against the action of a spring 41 to press the paper which may be adhesive only along its centre line into engagement with the strips.
Patent GB-789897-A (GB)
Title: Improvements in or relating to tape web dividers for textile carding engines
IPC: D01G15/56
Filed: 1955-08-22
Abstract: 789,897. Carding-engines. JAKUBECKI, K. Aug. 22, 1955 [Aug. 21, 1954], No. 24103/55. Drawings to Specification. Class 120(1) A web-divider for a carding-engine comprises tapes in the form of endless stretched flatbands made of synthetic plastic material i.e. polyamides or polyurethanes or mixtures thereof, which may contain emollients and/or fillers. In the dividing apparatus described, the thickness of each tape is not greater than the depth of the peripheral groove in the roller in which the tape engages.
Patent GB-713962-A (GB)
Title: Improvements relating to electric circuit arrangements for controlling sweep voltages
Inventor: JONES GLYNDWR JAMES
IPC: H03K4/12
Filed: 1951-10-16
Abstract: 713,962. Automatic control systems. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Aug. 12, 1952 [Oct. 16, 1951], No. 24120/51 Class 38(4) In order to maintain the datum level of a saw tooth waveform, e.g. for a timebase, at a predetermined potential, the waveform and earth potential are alternately applied for comparatively long periods to a valve which is gated to conduct only during the datum period, i.e. between successive saw tooth sweeps, so as to produce an alternating signal the amplitude of which depends upon the error in the datum level, which signal controls the charge on a condenser controlling the datum level. The output of the waveform generator is connected to the control grid of the gating valve V2 via a cathode follower V1 and a switch S1 which alternately connects the grid of V2 to earth. A synchronizing circuit coupled to the waveform generator acts on the suppressor grid of valve V2 so that it conducts in pulses in the intervals between successive sweeps. Hence its output consists alternatively of sets of pulses having an amplitude proportional to the actual waveform datum level and sets of pulses having an amplitude representing the desired level. The pulses are amplified by valve V3 and applied to detector V4, from the cathode of which are obtained positive going pulses having an amplitude proportional to the difference in amplitude between the two sets of pulses. This signal is applied to the control grid of a gated valve V5 rendered alternately conaucting and non-conducting by bias sources B1, B2 switched by a switch S2 in synchronizm with the switch S1. During the periods that V5 is cut off, a condenser C1 (controlling the datum level) charges through resistors R7, R8. When V5 is rendered conductive, it conducts to an extent dependent upon the amplitude of the signal applied from V4 and discharges condenser C1. The arrangement is such that under normal conditions the discharging of C1 substantially compensates the charging. In a modification, negative going pulses are applied to V5, and S2 is changed over so that C1 is discharged at a constant rate through V5 and is charged at a rate which is controlled by the amplitude of the pulses. In a further modification, Fig. 4 (not shown), the gating valve V2 is automatically biased in accordance with the magnitude of the error signal so as to increase the gain for small errors.
Patent GB-224054-A (GB)
Title: Improvements in or relating to electric immersion heaters
IPC: H05B3/80
Filed: 1923-09-27
Abstract: 224,054. Green, G. E. Sept. 27, 1923. Wire resistances, enclosed, cored.-An immersion heater comprises a heating element a formed on a comparatively thin flexible base b and only on that portion thereof which subsequently occupies the middle portion of the length of a flattened containing tube j, the tube being folded upon itself and having its ends mounted in a handle k forming the base of an electrical connector, the arrangement being such that the end portions of the tube comprising the major portion thereof are not heated directly by the heating element. A resistance wire a is wound on one end of each of two mica strips b joined together at one end by a metal clip c. Mica strips g, are arranged between and on the outside, of the elements before insertion into the tube j. The conducting wires e are threaded in and out through a longitudinal series of perforations in the strips b.
Patent GB-615019-A (GB)
Title: Improvements in gas-operated firearms
IPC: F41A5/28
Filed: 1946-08-14
Abstract: 615,019. Automatic fire-arms. ZBROJOVKA BRNO NARODNI PODNIK. Aug. 14, 1946, No. 24210. Convention date, Oct. 30, 1939. [Class 119] A gas-operated fire-arm has a readily removable gas cylinder 1 provided with a dovetail guideway 13 engaging with a corresponding guide rib on the barrel 2. The cylinder is secured against axial displacement by a pin 6 supported partly in the cylinder and partly in the barrel. The pin has a bore 6<SP>1</SP> inclined obliquely, to act as a conduit for the gases from the barrel when the pin is inserted from one side and to prevent gases escaping from the barrel when inserted from the other side. The pin 6 is secured by a resilient stirrup 7 pivotally mounted on a pin 14. The gas cylinder and barrel are engaged by a nose-cap 3 uniting a hand-guard 4 to the fore-end 5 of the stock. The gas cylinder is provided with an attachment 9 for the bayonet.
Patent GB-758696-A (GB)
Title: Improvements in or relating to the guide blade structure of axial flow compressors
IPC: F01D9/04
Filed: 1954-08-19
Abstract: 758,696. Axial-flow compressors; blade fixing. SIEMENS-SCHUCKERTWERKE AKT.- GES. Aug. 19, 1954 [Aug. 19, 1953], No. 24230/54. Classes 110(1) and 110(3) In an axial-flow compressor, the guide blade tips are secured to a non-resilient substantially annular support 6, Fig. 1, and the guide blade roots are secured to a substantially annular support 7 which is resilient and is adapted to locate the blade roots by co-operation with the compressor casing. The root of each guide blade 4 is chamfered at 9 and sweated into the ring 7, while the tip is slid into an axial groove in the ring 6 and retained by inserted wires 8. The ring 7 has a thin web 10 which overlaps the following rotor blades, and a thickened portion 11 which is a snug fit in the cylindrical bore of the casing. The thin web 10 allows the part of the ring 7 which carries the blades 4 to expand radially. Adjacent root support rings 12, 7 and 13 abut one another and are located and held against rotation by pins such as 14, 15 which engage the thickened parts such as 11, 16 and are inserted in the joint of the casing and held by screws. Ridges such as 25 co-operate with annular webs 19, 20, 21 to form labyrinth glands. In a modification, Fig. 2, two labyrinth seals in series are formed by thin cylinders 30, 31 screwed to an extension 28 of a guide blade support ring 27 and cooperating with ridges 33 on a ring 35 and similar ridges on a cylinder 34. In a further modification, two rows of whirlremoving stator blades are provided after the last row of rotor blading, their two tip-supporting rings being secured together, with a spacer ring interposed, by screws. The two root-supporting rings are spaced from the inner wall of the casing, and radial location is provided by the engagement of the second tip-supporting ring with an annular surface in the casing.
Patent GB-207884-A (GB)
Title: Folding trestle for use as a front support for machine guns and the like
IPC: F41A23/08
Filed: 1922-09-07
Abstract: 207,884. Hazelton, G. Sept. 7, 1922. Aiming-rests.-A folding twolegged muzzle support for machine guns comprises a head 1, 4 on which the gun can swivel, a plug 6 mounted to rotate about a transverse axis in the head, and two cranked legs 11 rotatably mounted in the plug, the arrangement being such that the legs can be raised and lowered owing to rotation of the plug, and, when the legs are raised, they can be rotated in the plug about the axes of their cranked ends, tc bring the legs parallel to the gun, this rotation also serving to lock the plug against rotation. As shown, the head has a collar 1 to receive the pivot pin of the gun and a collar 4 at right-angles thereto to receive a plug 6. The collar 4 has on both sides, inclined semi-cylindrical notches 5, Fig. 4, and the plug is bored, at right-angles tc its axis, with two parallel holes, Fig. 6, the axes of which are situated in the planes of the sides of the collar. The cranked ends of the legs are mounted in the holes 7 and each leg is secured longitudinally by a screw 9 engaging a groove: 10. Each leg is formed with two halfthrough notches 13, 14, Figs. 8 and 9, having cylindrical surfaces 16 which form a continuation of the outer surface of the plug 6 when the legs are turned, so that the flat bottom surfaces of the notches are in the plane of the sides of the collar 4, as shown in Fig. 7. In this position, the legs are spread apart and the plug is free to rotate so that the legs can be lowered into the operative position. To fold the legs, they are first raised until the holes 7 in the plug coincide with the notches 5 in the collar, and then they are brought together, the cranked ends rotating in the holes 7 in the plug and the solid part of the legs opposite the notches 13, 14 entering the notches 5 in the collar 4 and locking the plug 6 against rotation. The legs are then held against accidental displacement by a sliding ring 20.
Patent GB-819494-A (GB)
Title: Improvements in or relating to transmitting magnetic compass systems
Inventor: CULLEN GRAEME EYRES
IPC: G01D5/14
Filed: 1956-08-08
Abstract: 819,494. Etectric indicating systems. KELVIN & HUGHES Ltd. July 26, 1957 [Aug. 8, 1956], No. 24330/56. Addition to 788,544. Class 40 (1). Apparatus for measuring the rotation of a compass magnet 11 relative to a craft on which it is mounted comprises a semi-conductor crystal 10 mounted coaxially with the magnet and in its magnetic field, fed with A.C. along its horizontal axis 12, 13 so that any angular displacement of this axis relative to the horizontal axis of the magnet produces a P.D. across the vertical axis 17, 18 by the Hall effect, which is fed to a motor 22 to realign the axes of the crystal 10 and the magnet 11. The rotation may be telemetered via a known transmitter 26 to remote receivers.
Patent GB-652556-A (GB)
Title: An improved device for controlling temperatures
IPC: H01H37/46
Filed: 1948-09-16
Abstract: 652,556. Automatic temperature control systems. P.A.M., Ltd., and HOLT, H. B. W. Sept. 16, 1948, No. 24332. [Class 38 (iv)] [Also in Group XXXVII] The temperature of an article 23 which is being heated, is regulated by an interrupter switch 9 for the heating means, this switch being controlled through a pivoted lever 7 by the expansion and contraction of the article 23. The article to be heated or, as shown, a small metal rod 23 in direct contact with the article, is supported between pivoted or ball ends of pivoted levers 7, 18, the latter of which is fixed in an adjusted position. The switch 9 comprises two spring contacts 8, 11, the former of which is operated by the lever 7 and the latter is pre-set in accordance with the desired temperature by an adjusting-screw 15 having a lock-nut 17. The parts are supported on a frame 1 and the screw 15 is so mounted and formed of a material different from the frame 1 that effects of heat on the contact 11 are compensated. A cover is provided for the apparatus and is of such a nature, e.g. polished, that the effects of ambient heat are reduced. Specification 631,595 is referred to.
Patent GB-369284-A (GB)
Title: Improvements in processes for cleaning coal and other intermixed materials
IPC: B03B9/00
Filed: 1931-05-14
Abstract: 369,284. Cleaning coal &c. WOODALL-DUCKHAM (1920), Ltd., DUCKHAM, SIR A. M., and HALMSHAW, H., 136, Victoria Street, London. May 14, 1931, No. 24412/30. [Classes 82 (ii) and 117.] In cleaning coal or other intermixed materials by a combined wet and dry method the coal is delivered from a shoot a on to a jigging table b where it is subjected to the action of an air current, the lighter particles being carried down the length of the table and discharged on to a conveyer c and the heavier particles being discharged transversely on to a conveyer d which carries them to a wet separating unit e.. The residue from the wet separation is discharged to the conveyer f while the clean coal is carried down a launder g into a settling tank h from which the coal is discharged on to the conveyer c where it mixes with the concentrates from the dry separating table. A pump i returns the water from the settling tank h to the washing unit e.