baber/WOPTO huggingface dataset:
Patent GB-670591-A (GB)
Title: Improvements in or relating to magnetic recording or reproducing apparatus
IPC: G11B5/00
Filed: 1948-10-28
Abstract: 670,591. Magnetic recording and reproducing apparatus. THERMIONIC PRODUCTS, Ltd., (Brush Development Co.). Oct. 28, 1948. No. 28040/48. Class 40 (ii). [Also in Groups XVI and XXIV] In a magnetic recording and reproducing apparatus for wire or tape, the supply and take-up reels are coupled together by a variable ratio gearing comprising intermediate wheels 6-41 which engage toroidal tracks 6-42 on reel mounting members 6-21, 6-22 and are mounted on gymbal shafts 6-48 axially movable against the tension of a biassing spring 6- 69, whereby the contact planes 60-3, Fig. 9, of the intermediate wheels 6-41 rotate to an angle in which the ratio of the speeds of the reels produces a tension in the wire or tape which is balanced by that of the biassing spring 6-69. The gymbal shafts 6-48 are carried on a stationary frame 6-51 suspended in a ring 6-40 and are subjected to the biassing force of the spring 6-69 by means of an arm 6-68 on a triangular plate 6-61 carrying resilient levers 6-71 which act upon the ends of the gymbal shafts 6-48. The wire or tape is drawn from one of the reels 6-11, 6-12, according to whether a forward drive or rewind is taking place, by a capstan 2-11, Fig. 1, revolving at constant speed. The supply reel, which is rotated by the tension of the wire or tape, revolves in a clockwise direction, as viewed in Fig. 8. Owing to the axial displacement of the gymbal shafts 6-48 in a direction against the direction of rotation of the supply reel, the wheels 6-41 tend to run radially outward in the toroidal tracks 6-42 and thereby increase the speed of the take-up reel until the resistance to turning of the said take-up reel, caused by the tension of the wire or -tape, moves the gymbal shafts axially against the tension of the spring 6-69 to a position in which the contact planes 60-3 of the wheels 6-41 produce a speed ratio between the reels such that the tension in the wire or tape is balanced by the biassing spring 6-69. During a forward drive the wire or tape is drawn from the reel 6-11 around a groove 2-12 in the capstan 2-11, over an erazing head 33, around a pulley 2-19, over a transducer 34, around a groove 2-13 in the capstan 2-11 and on to the reel 6-12. During transducing, driving. connection is established with single-direction motor 2-41. by means of an intermediate jockey pulley 2-43 which engages a flywheel 2-15 on the capstan 2-11. A fast forward or rewind is effected by a reversible motor 2-21 which is coupled directly to the capstan 2-11. An axial oscillatory motion of the reels 6-11, 6-12 for the purpose of evenly winding the wire on the spools is effected by means of a spring-loaded tongue 7-12 which engages an endless cross thread 7-11 on a stationary mounting shaft 6-13, and which is coupled to the ball cage of the bearing 6-31 and the reel assembly by a spring arm 7-16 and a collar 7-13. Specifications 647,962, 653,649 and 676,761 are referred to.
Patent GB-464400-A (GB)
Title: Grease paints
IPC: A61K8/92
Filed: 1935-10-11
Abstract: A non-drying cosmetic grease paint in free flowing liquid form is obtained by using non-volatile oils, together with the texture ingredients and pigments, in place of the usual pasty or solid bases. Suitable oils are olive, almond, castor, cotton seed, sulphonated olive and castor, and mineral oils or mixtures of such oils.  Small proportions of woolfat and various waxes may be added to vary the consistency of the oil, which constitutes at least 35 per cent of the total composition.  Texture ingredients specified are zinc and aluminium stearates, talc, kaolin, and the oxides of titanium zinc and magnesium or mixtures of such ingredients. Surface tension reducing agents such as sulphonated alcohols, cholesterol, iso - cholesterol, and mixtures of triethanolamine and stearic acid or of sulphonated lauryl alcohol and cetyl alcohol, may be added if the paint is to be removed by soap and water.  Examples are given.
Patent GB-463980-A (GB)
Title: Improvements relating to valve-operating mechanism for steam engines
IPC: F01L29/04
Filed: 1935-10-12
Abstract: 463,980. Engine valve-gear. BARCLAY, CURLE, & CO., Ltd., GILCHRIST, J., and McNEE, J. B. Oct. 12, 1935, No. 28232. [Class 122 (ii)] The valve motion is obtained through adjustable leverage from a lever which is oscillated by an adjustable eccentric. The leverage and eccentricity are simultaneously adjusted to control the time of opening and closing of the valve to effect the desired relation between the admission and lead, or release and compression, respectively. In the construction shown, the upper and lower slide valves 13, 14 control the admission of steam to both ends of the cylinder 12, and are operated by cam slots in an oscillated disc 17. Motion is transmitted to the discs 17 from the crank-shaft by an adjustable chain drive, an angularly, adjustable eccentric 24, link 26, and a lever 271, 273 with adjustable leverage. An endless chain 20 connects wheels 21, 22 on the crank-shaft 18 and valve-actuating shaft 23 respectively. The eccentric 24 is shown in phase with the crank 19. A hand wheel 31 simultaneously adjusts through screw-and-nut mechanism 32<1>, 32<2> and an arrangement of chain wheels 351, 35<2> and gear wheels 36<1> ... 36<4> the angular position of the eccentric, and through lever-andlink mechanism the stroke of the cam-operating rod 28. The angle of advance and the valve travel are increased so that the lead is maintained substantially constant. In a modification wherein the rod 28 directly operates an ordinary piston valve, the chain drive adjustment is replaced by an epicyclic gear. The planet-wheel carrier is adjusted by worm and rack, and affects the valve travel through links and. levers. Similar gearing may operate exhaust valves.
Patent GB-616672-A (GB)
Title: Improvements relating to turbine and like blading
IPC: F01D5/18
Filed: 1946-09-20
Abstract: 616,672. Gas turbines and compressors. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and CONSTANT, H. Sept. 20, 1946, No. 28242. [Class 110 (iii)] The shank portions 9 of gas turbine and other blading are formed with a number of oblique radial slits 11 through which can flow cooling air supplied in an annular conduit 10 lying radially within the bladed passage 6. Each blade may have, also, one or more closed radial cavities 13, extending from the blade portions 5 into the. cooled shank portion 9, containing sodium, caesium or aluminium chloride or bromide for convective cooling.
Patent GB-1105928-A (GB)
Title: Mixing device for extruding apparatus
IPC: B29C48/10
Filed: 1965-07-02
Abstract: 1,105,928. Pug-mills. HEDWIN CORPORATION. 2, July, 1965 [22, Dec., 1964], No. 28246/65. Heading B1C. [Also in Division B5] To improve the mixing and plasticization capabilities of a single screw extruder, the machine comprises at least one pair of mixing rings, one member 16 of the pair being connected to screw 11 for rotation therewith and the other member 26 being fixed to barrel 7. Each ring is longitudinally slotted to form peripheral teeth 23, 29 (see also Figs. 3 and 5, not shown), with preferably the rings of each pair having differing numbers of slots. The positions of the teeth (see also Figs. 4 and 6, not reproduced), are longitudinally asymmetric with regard to their respective rings 16 and 26 so that four longitudinal displacements between teeth 23 and 29 are possible by reversal of one or both rings. The longitudinal displacement may also be varied during running of the machine by axial movement of screw 11 derived from a hydraulic piston and cylinder (45, 46), Fig. 1 (not shown). The barrel 7 and extrusion nozzle may be electrically heated and the former may be cooled by blowers in the event of overheating. The Screw 11 may be heated by passage of oil therewithin.
Patent GB-1168139-A (GB)
Title: Improvements in or relating to Cargo Handling Apparatus
Inventor: GRIDLEY HARLAND DAN
IPC: B66C23/60
Filed: 1967-06-20
Abstract: 1,168,139. Cradles for ship's cargo. H. D. GRIDLEY. 20 June, 1967 [18 July, 1966], No. 28393/67. Headings B8B and B8H. A cradle 10, 12, 14, Fig. 1, for loading ship's cargo is suspended by a pair of ropes 60, 62, swivels 52, 54 and a yoke 40 attached to a rotatable lifting post with an indexing disc keyed thereto which co-operates with a fixed indexing disc on the cradle. The two discs are immobilized with respect to each other by a pin 36 which passes through aligned holes. Fig. 6 shows a second type of cradle, the indexing discs being arranged as described above. Fig. 8 shows the cradles in use for loading a ship in conjunction with derricks 104, 106 and masted lift trucks 134, 136.
Patent GB-895423-A (GB)
Title: Coating compositions
IPC: C09D133/12
Filed: 1958-09-05
Abstract: A coating composition comprises a solution of polymethyl methacrylate and/or a copolymer containing at least 90% by weight of methyl methacrylate, these polymers having a molecular weight distribution such that the value of the ratio of overall webbing tendency to overall webbing resistance is less than unity and having a fraction of molecular weight above 140,000 \sB 5,000, the webbing tendency and webbing resistance of the different molecular weight fractions of the polymers being derived from Tables provided for this purpose.  A polymethyl methacrylate coating composition is disclosed which comprises, in addition to the polymer, titanium dioxide, benzyl butyl phthalate, linseed oil monoglyceride, toluene, acetone, butyl acetate, petroleum fractions and "Cellosolve" (Registered Trade Mark) acetate.
Patent GB-895446-A (GB)
Title: Process for making alumina
IPC: C01F7/38
Filed: 1958-09-05
Abstract: Alumina, which may have a purity of 99,5% and over, is prepared by the reduction with carbon in an electric arc furnace of an aluminium ore containing silicon, iron, and other impurities, the reduction being effected above 2000 DEG  C., in which in the initial phase of the reduction an excess of carbon is present, the conditions being so controlled that a bath of partly purified molten alumina is obtained, to which bath a further quantity of carbon is added to complete the purification, before the molten alumina is cast.  Globules of ferrosilicon in the bath may be removed before casting by heat-insulating the surface of the bath with calcined alumina or powdered already purified alumina, and adding iron, preferably in the form of unoxidised iron turnings, and in an amount of 5,5% to 6,5% by weight. Excess carbon and aluminium carbide may be removed from the bath by the action of oxygen or an oxygen-containing gas, for example by blowing a jet of air across the casting stream, thereby at the same time dispersing and granulating the purified alumina to form hollow globules, which globules may be collected in water.  The reduction may be effected in the presence of a small quantity, e.g. 1 to 2% by weight, of magnesium oxide, or a compound which yields magnesium oxide under the reaction conditions, which acts as a flux. The magnesium oxide, and any calcium oxide which may be present, may be removed from the solid product by washing with dilute hydrochloric acid.
Patent GB-912646-A (GB)
Title: Improvements in or relating to hydraulically expansible holders for work or tools
Inventor: BETTER BERNARD RAYMOND
IPC: B23B31/30
Filed: 1960-08-18
Abstract: 912,646. Mandrels. SCULLYJONES & CO. Aug. 18, 1960, No. 28693/60. Class 83 (3). An expanding mandrel comprises a tapered shell 14 which can be expanded on a tapered body 11 by fluid pressure, the shell being able to move on the body to relieve the internal pressure if the pressure should become excessive. The shell may be of beryllium-copper and is retained by a ring 40. The fluidpressure is produced in a chamber 36 by set-screws 25, 38 acting on nylon balls 26, 37 engaging seals 27, 34, each containing a steel ball to press the periphery of the seal against the bore of the chamber. The fluid may be uncured synthetic rubber. In a modification, the shell 16b, Fig. 5, grips internally and the chamber 36b is offset. Besides being offset it may also be transverse. In a further modification, the body 11c, Fig. 6, is flanged and secured to a spindle, and the pressure is produced by the movement of a centre 46 into engagement with a plunger 45.
Patent GB-1036840-A (GB)
Title: Method of repairing road surfaces
IPC: E01C7/14
Filed: 1965-07-06
Abstract: 1,036,840. Repairing roads. H. HARPENG. July 6, 1965, No. 28709/65. Addition to 769,187. Heading E1G. A damaged roadway is repaired by boring holes 8 in the in-situ concrete of the surface at the points of fracture and/or expansion joints, consolidating the foundation 3 with a vibrator lowered through the holes, introducing additional foundation material 4<SP>1</SP>, covering the existing surface with prefabricated slabs 7 and forcing material such as concrete paste 9 between the old surface and the bores of the slabs. The holes may be made with an oxygen flame.
Patent GB-285549-A (GB)
Title: Improvements in or relating to horse shoes
IPC: A01L7/02
Filed: 1926-11-16
Abstract: 285,549. Hasler, F. G. Nov. 16, 1926. Addition to 238,041. Hoof-supporting packing; hoof-pads.-In composite shoes of the kind described in the parent Specification, the reinforcement for the elastic pad 2 consists of wire in the form of overlapping convolutions 1 which give continuous metallic edges to the pad. The pad is held bv nails which pass through the convolutions, and may be positioned in the first place by means of an edge 2a which is preferably cut off when the shoe is fixed to the hoof. The convolutions may be bent as in Fig. 4, and may be turned down at either or both sides as in Figs. 5, 6. The pad and reinforcement may be made up for transport in coils of comparatively large diameter. Specification 245,386 also is referred to.
Patent GB-698163-A (GB)
Title: Improvements in or relating to a machine tool having a counterbalancing device
IPC: F16F15/28
Filed: 1951-12-10
Abstract: 698,163. Milling. GIDDINGS & LEWIS MACHINE TOOL CO. Dec. 10, 1951 [Dec. 15, 1950], No. 28862/51. Class 83 (iii). [Also in Group XXX] A machine tool having a tool-head 32 movable linearly in a horizontal path between columns 26 comprises a track 36 overlying the path of movement of the head, and suspension means mounted on a trolley 38 which traverses the track 36. As applied to a planer-type milling machine, the track 36 extends between the columns 26 which support the cross-beam 28. The columns each carry an angle-piece 42 to guide a counterweight 46. Three cable-and. pulley systems are provided, the actual counter. weighting system comprising a cable 72 which is attached at each end to the ends of the beam 28 at 74, 76 and passes around a pulley 82 on each counterweight and around a pulley 90 on the head 32. Thus, horizontal movement of the head does not alter the positions of the counterweights and the trolley 38 tends to follow the movement of the head. A second cable-and-pulley system maintains the trolley 38 centralized over the head 32. One cable 100 is attached to the trolley at 102, passes over pulleys 104, 106, 108, 110, 116, 118 and 120 and is secured to the head at 122. A second cable 100a extends in an opposite manner from a point 102 on the trolley to a point 122 on the opposite side of the head. The two cables 100, 100a may be replaced by a single cable. The third cable system maintains the tension in the latter system. It comprises cables 140 each attached at one end to the cross-beam 28 and, at the other, to a tension-adjusting screw 132. Each cable passes round a pulley 136 carried by each block on which each pulley 110 is mounted. In a modification, the second and third systems, that is those including the cables 100, 100a and 140, are replaced by a single system comprising two cables each attached at one end to the back of the tool-head and at the other to the top of the head. If the tool-head is pivotally mounted, the cables 100, Fig. 11, may be attached to a slide 213 which is mounted on a block 200 secured to the tool-saddle 50 and is connected to the head by a pin-and-slot device 208, 204. Thus, when the head is tilted, the cables are moved an amount corresponding to the movement of the pulley 90.
Patent GB-447398-A (GB)
Title: Improvements in or relating to intermittently acting absorption refrigerating apparatus
IPC: F25B17/00
Filed: 1934-10-09
Abstract: 447,398. Refrigerating. ELECTROLUX, Ltd., Luton, Bedfordshire.-(Assignees of Platen - Munters Refrigerating System Aktiebolag; 2, Norrmalmstorg, Stockholm) Oct. 9, 1934, No. 28871. Convention date, Oct. 9, 1933. [Class 29] Absorption systems.-In an intermittent system the control of the heat supply to the generator 10 to initiate an evaporationabsorption period at the end of a generating- condensing period is effected by a thermostat 68, which is influenced by heat of absorption of vapour of condensate overflowing from the evaporator 52 and passing in heat exchange with a warm element of the apparatus. During the generating phase strong liquor flows from a vessel 17 through a conduit 48, and from a vessel 13 through conduits 4, 5, to a heated " pumping " coil 20 whence it is raised to the top of the generator, while weak liquor flows back from the generator through a pipe 31 and interchanger 33 to vessel 13 for storage. The refrigerant vapour passes from the generator by a pipe 23 to a sealing vessel 100, then by pipes 5, 25 to a rectifier 29, and by pipes 45, 43 to a condenser 11. The liquefied refrigerant flows around the rectifier jacket and rises through a pipe 30 to the evaporator, which has an overflow device 50, 51, 36 for excess refrigerant and any solvent. This overflow passes down the pipe 36, which is heated by interchange with members 33, 48, and vapour evolved therein is absorbed in liquor in a vessel 62, connected by pipes 60, 61 with vessel 17. The liquor is thereby raised in temperature and influences the thermostat to cut off the heat supply. In the evaporating period vapour passes down the pipe 30, through the condenser, and by a pipe 44 to a conduit 1 connecting the storage vessel 13 with the absorber pipe 2, and induces a flow of liquid from the storage vessel to a stand pipe 42 above the vessel 17. The vapours in the boiler system are here absorbed and the pressure in the boiler system reduced. Absorption takes place in the upper part of conduit 1 and the heat evolved maintains the thermostat warm until evaporation ceases, whereupon the thermostat cools down and starts a fresh heating period.
Patent GB-918796-A (GB)
Title: Improvements in or relating to fluid measures
IPC: A23G9/28
Filed: 1960-08-23
Abstract: 918,796. Delivering measured quantities of liquid. BILLINGHAM, A. C. Nov. 20, 1961 [Aug. 23, 1960], No. 29049/60. Class 106 (5). A device for supplying measured quantities of liquid to moulds comprises a tray 12 divided by partitions 13 into a number of compartments each having an outlet closed by a valve 15 and the valves are simultaneously raised to discharge the contents by a valve plate 14 actuated by handles 18 through a toggle mechanism 17. The valves may be urged down by gravity alone or by springs and each may comprise a plug fitting in a spout 12a formed by a downward deformation of the tray or a tubular spout may have an 0-ring seal and a tubular member movable within it to bring one or more apertures in the tubular member above or below the seal. In use, the tray is dipped into a container of the liquid to be dispensed and as it is lifted out any surplus spills over the end walls 12b. The tray is then placed over a mould in correct relation to the mould cups and the lifting handles 18 are rotated into a vertical position so that the valve plate 14 is raised Specification 878,419 is referred to.
Patent GB-293249-A (GB)
Title: Improvement in connection with mouthpieces of tobacco pipes, cigar holders and cigarette holders
IPC: A24F7/00
Filed: 1927-11-01
Abstract: 293,249. Lawrence, J. W. Nov. 1, 1927. Tobacco pipes and cigar and cigarette holders.-The end of the mouthpiece is approximately triangular, as shown in section in Fig. 4 and in end view in Fig. 5, the angles being rounded and the base being slightly concave, in order to give a threepoint contact with the teeth.
Patent GB-170197-A (GB)
Title: Improvements in vertical retorts for the continuous destructive distillation of carbonaceous materials
IPC: C10B1/04
Filed: 1920-10-16
Abstract: 170,197. Glover, S., West, J., and Wests' Gas Improvement Co., Ltd. Oct. 16, 1920. Discharging.- Vertical retorts of special form enlarged at the base are fitted with worm extractors b.
Patent GB-391211-A (GB)
Title: Improvements in or relating to electrical signal wave transmission systems
IPC: H04B3/06
Filed: 1931-10-22
Abstract: 391,211. Long-distance transmission. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Horton, A. W. ; 160, Prospect Street, East Orange, New Jersey, U.S.A.) Oct. 22, 1931, No. 29318. Convention date, Nov. 4, 1930. Addition to 338,973, [Class 40 (iv), Telephones &c.]. [Class 40 (iv).] In a transmission system comprising means for distorting speech &c. waves before transmission (to compensate for. attenuation and head-end loss or to override noise) and for transmitting-them at a substantially constant volume level, the distorted waves being restored to their original form in the receiving circuit, voices of different frequency characteristics are received at different volume levels-owing to the action of the restoring means in the receiving circuit. This is obviated by a volume control subsequent to the entire restoring means. A long two-way terminal circuit is described in which the transmitting path TC comprises volume control 12, distorting network 16 and volume control 17, while the receiving path RC comprises an equalizer 23 followed by a volume control 24. Specification 390,812 is referred.to.
Patent GB-855742-A (GB)
Title: Improvements in air-motor-driven sweeper attachments for vacuum cleaners
Inventor: MAGARIAN GERALD MALCOLM
IPC: A47L9/04
Filed: 1958-09-12
Abstract: 855,742. Suction cleaner nozzles. PRECO Inc. Sept. 12, 1958, No. 29344/58. Drawings to Specification. Class 8(1). The subject-matter of this Specification is substantially the same as that described in concurrent Specification 855,743 but the claims are concerned with a dust-proof housing for the turbine wheel bearing.
Patent GB-631919-A (GB)
Title: Improvements in guide rollers for haulage cables
IPC: F16N7/00
Filed: 1947-11-04
Abstract: 631,919. Guide rollers. WILLIAMS, S. E. Nov. 4, 1947, No. 29354. [Class 78 (v)] A guide roller for haulage cables comprises a lubricating chamber 7 provided with a lower side flange 8 stepped up from its base for retention of oil and a roller 1 having a spindle 3 with an enlarged head 4, the head being adapted to drop to the inside of the flange when engaging the lubricating chamber so that the chamber supports and lubricates the spindle. As shown, a lubricating chamber 7 is formed at each side of drum 1 and in each chamber runs head 4 formed on spindle 3 made integral with side 2 welded to drum 1. Oil enters at 9. Alternatively enlarged head 4 may be formed on bracing bolt 5 to form a spindle separate from the drum.