baber/WOPTO huggingface dataset:
Patent GB-570653-A (GB)
Title: Improvements in or relating to liquid seals around rotating shafts
IPC: F04D29/10
Filed: 1942-11-19
Abstract: 570,653. Liquid seals. SULZER FRERES SOC. ANON. Nov. 19, 1942, No. 16371. Convention date, Dec. 13, 1941. [Class 122 (v)] In a liquid seal for a pump or like vertical shaft 3 passing through a wall 8 comprising a collecting chamber 10 and an annular space 15 around the shaft, a stationary part 17 is provided with ribs 26 or the like which project into the collecting chamber and prevent the liquid 11 from rotating. The chamber 10 is formed by a cup-shaped container 12 rotating with the shaft 3 and provided with an enlarged cupped top 13, whilst the space 15 is defined by a; tubular part 16 of the casing with an enlarged cupped top 23 closed by a cover 24 with a pressure-equalising opening 25. Below the lowest level of the liquid 11 the part 17 has a flange 18 provided with one or more throttle passages 20 and separated by a clearance 19 from the container 12. One or both of the free surfaces 28, 27 of the liquid 11 in the cups 13, 23 may be protected by further sealing liquids 29, 30, the chamber 10 being large enough to contain all the sealing liquids when the pump is at rest or when the liquid pumped does not reach the pump under pressure. The sealing liquid 11 may be water, oil, carbon tetrachloride, or mercury. In a modified form the ribs 26 extend the full length of a cylindrical container 12. Fig. 5 shows a modification in which the collecting chamber 36 is formed by a stationary container 37 and a centrifugal member 38 on the shaft puts the liquid 11 under pressure. The flange 39 of the member 38 is formed with blades 40, whilst ribs 41 on the fixed wall 8 prevent the liquid 11 from rotating.
Patent GB-457800-A (GB)
Title: Improvements in or relating to television receiving systems
IPC: H04N5/21
Filed: 1935-06-05
Abstract: 457,800. Television. WEST, A. G. D., and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. June 5, 1935, No. 16394. [Classes 40 (iii) and 40 (v)] The intensity of a cathode - ray beam is prevented from exceeding a desired maximum, irrespective of the potentials which control the intensity. When the modulating potentials exceed a required maximum the primary of a transformer 6, in series with a diode 4 and a biassing potential 5, induces in the secondary a current which sets up a potential across a resistance 7 to reduce the effective magnification of an amplifying valve 9. Specification 446,663 is referred to in the Complete Specification and Specification 455,237 in the Provisional Specification.
Patent GB-1034774-A (GB)
Title: Thread-forwarding roller for twisting machines
IPC: B65H51/06
Filed: 1965-04-20
Abstract: A thread-advancing roller, which will allow for changes in tension as a thread is wound by a reciprocating laying-guide, comprises thread-clamping means which form part of a thread-groove and which are reciprocable to narrow the groove under the control of means which operate automatically between the point of entry and the point of departure of the thread.  In the forms described, (a) the groove is formed between two cylinders fast on a driving shaft with flared inner faces.  The base of the groove is formed by pins interconnecting the two cylinders.  One of the cylinders houses a series of magnets of which those on the outer sector occupied by the thread are forced by the repulsion of a fixed magnet toward corresponding damping faces on the other cylinder Fig. 1 not shown. (b) One of the cylinders is fixed and carries pins projecting into recesses in the other cylinder on which members can slide towards and away from the clamping members under the repulsive and attractive influence respectively of magnets on the rotatable cylinder, Fig. 8, (not shown).  (c) The movable magnets may be replaced by members attracted in the thread area by a fixed magnet or moved by a cam Figs. 7, 18, (not shown).  (d) The movable magnets are replaced by hinged two-armed members which are rocked in the thread area as they come under the influence of a fixed magnet; the hinged members may be so arranged relatively to the corresponding clamping-members that the thread follows an undulating path, Fig. 4, (not shown).  (e) One of the cylinders may be formed as a plate with recesses which co-operate to grip the thread with balls or pins which are held magnetically out of engagement with the recesses except in the thread-area where they are moved magnetically to engage the recesses.  Figs. 9, 10 (not shown).  (f) One of the cylinders is formed as a plate able to rock, in the thread area, towards the other cylinder under the influence of a cam or a magnet, the cylinder and plate being formed with teeth to grip the thread and cause it to follow an undulatory path, Figs. 11, 14, 17, (not shown).  (g) Two members having alternate protruberences and recesses are mounted in the cylinders and are urged towards one another by springs or pneumatic means; the members are kept separate from one another except in the thread-area by a wheel between them, Figs. 15, 16, (not shown).
Patent GB-790675-A (GB)
Title: Combined disc and shoe brake
IPC: F16D55/15
Filed: 1956-05-28
Abstract: 790,675. Combined disc and shoe brakes. BENDIX AVIATION CORPORATION. May 28, 1956 [June 17, 1955], No. 16463/56. Class 103 (1). A composite disc and shoe brake comprises shoes 28 and 29, Fig. 1, which are spread apart into engagement with the drum by actuators 26, the circumferential movement of shoes 28 and 29, caused by the drum friction, producing through ball ramp device 40, 44, Fig. 2, outward movement of disc friction elements 42 into engagement with the sides of the drum. The disc friction elements are normally drawn together away from the drum by springs 47, Fig. 3, then between. In another arrangement, there is only a single hydraulic actuator cylinder at the top for moving the shoes apart, which deflects the central members of a pair of ball and ramp devices at the opposite lower ends of the shoes. In the arrangement shown in Fig. 8, two single-ended actuator cylinders 22b and 24b act upon the shoes 28b and 29b which have ball ramp device 44b. Specifications 775,237 and 776,743 are referred to.
Patent GB-1462129-A (GB)
IPC: B65H31/28
Filed: 1974-08-12
Abstract: 1462129 Delivering sheets; guiding elevation platforms I D Inc 12 Aug 1974 [15 Aug 1973] 16474/76 Divided out of 1462128 Headings B8R and B8L The subject-matter is the same as that of Specification 1,462,128, but the claims are directed to the hydraulic means for lifting the table and for rotating the rollers forming the upper surface thereof so as to remove the stack of sheets therefrom.
Patent GB-203091-A (GB)
Title: Improvements in and appertaining to alarm devices for strong boxes, jewel cases, house doors, windows and the like
IPC: G08B13/02
Filed: 1922-06-15
Abstract: 203,091. Sutton, C. J. June 15, 1922. Theft alarms.-In apparatus for giving an alarm when a jewel case, door, window, or the like is moved, by dislodging a weight which thereupon frees a vibrator actuated by clockwork, a lever carrying a funnel into which the weight falls brings about the alarm and the funnel serves to re-set the alarm. The vibrator c is normally held by a projection b<2> on a horizontal lever b carrying a cone-shaped member b at its other end. A pillar e projects through a hole in the base of the member b<1> and supports a ball e<1> which, on being dislodged by movement, falls into the cone b<1> and raises the projection b<2> to release the vibrator or hammer c. The member b<1> is held depressed by a catch g. A resetting lever f raises the member b<1> to re-position the ball e<1>, and a crank portion f<1> trips the catch g. The setting lever f may be provided with a toothed wheel engaging with a rack to wind up the clookwork or may be attached by a pin and slot to a link h<1> attached to a handle h for winding up the clockwork. If, however, the clockwork be sufficiently wound, the lever f may be moved without disturbing the handle h. Where the alarm is to be applied to a door, the mechanism is contained in a box fastened to the door. A crank member k<3>, Fig. 5, attached to the cover plate of the keyhole of the box may also give the alarm by depressing a lever k, which passes up through the hollow pilla,r e and so dislodging the ball e<1>. A ratchet wheel may be attached on the inside of the box to the axle of the cover plate, and a stud on the ratchet wheel may move the lever k. According to the Provisional Specification, this apparatus may be modified for use in an electrical alarm: the cover plate may spring back into position over the keyhole, or may be moved by hand and may actuate a spring-pressed lever to engage the setting lever and set the alarm : and the cover plate may lie flush with the bottom of the box so that, in order to move it, the box must be tilted and the alarm given.
Patent GB-771349-A (GB)
Title: Improvements in or relating to clips
IPC: A01K93/00
Filed: 1955-06-09
Abstract: 771,349. Sliding jaw clamps. NUNN, F. W. June 9, 1955, No. 16561/55. Addition to 757,512. Class 44. [Also in Group VI] A clip for connecting a fisherman's float sideways on to an unbroken line comprises a tube 1 having in each end a slidable sleeve 3 and a rod 5 extending through the tube and the sleeves and having end hooks 8 disposed in the sleeves. The line is gripped between the hooks and the sleeves. A spring 9 urges each sleeve outwardly so that a. shoulder 4 on each sleeve abuts an annular abutment 2 on the tube. Each hook is projected from its sleeve by pushing inwardly the hook and sleeve at the other end. The interior of each sleeve may be of circular or slot-like cross-section. Alternatively the sleeve may comprise a member having two holes, one for the rod and the other for the end of the hook. The rod may be made of metal or of plastic material having oblique slots forming the hooks.
Patent GB-963450-A (GB)
Title: Method and composition for shielding steel from molten coating metal
IPC: B23K35/22
Filed: 1962-05-01
Abstract: A composition for shielding steel from coating by metal when immersed in a molten bath thereof, comprises an aqueous slurry containing 12 to 28% by weight of calcium oxide and/or magnesium oxide and 3 to 20% by weight of an alkali metal (e.g. sodium or potassium) metaborate.ALSO:A method of shielding steel sheet or strip from coating by metal when immersed in a molten bath thereof, comprises applying to the steel a slurry, preferably an aqueous slurry, containing 12-28% by weight of calcium oxide, magnesium oxide or mixture thereof and 3-20% by weight of an alkali metal metaborate, and drying the resulting film before immersing the steel in the bath. The steel may be annealed before being immersed in the metal which may be aluminium, tin, zinc, or an alloy of lead and tin.  The masking coating may be removed by scrubbing with water. The metaborates specified are those of sodium and potassium.ALSO:Steel sheet or strip is shielded from coating by metal when immersed in a molten bath thereof, by applying (e.g. by brushing, spraying or roller coating) thereto a slurry containing 12-28% by weight of magnesium oxide and/or calcium oxide and 3-20% by weight of an alkali metal (e.g. potassium or sodium) metaborate and drying the film by heating.  The slurry is preferably aqueous. The film may be removed by scrubbing with water.
Patent GB-995681-A (GB)
Title: Improvements in or relating to discharge tubes
Inventor: MENOWN HUGH
IPC: H01J17/16
Filed: 1963-04-29
Abstract: 995,681. Discharge tubes. ENGLISH ELECTRIC VALVE CO. Ltd. March 20, 1964 [April 29, 1963], No. 16697/63. Heading HID. A discharge tube, e.g. a thyratron, has an envelope with an inner cylindrical composite wall providing a coolant passage 1 passing axially through the tube. The tube illustrated has a ring-shaped anode 4, second 5, 6 and first 7 control electrodes, and one or, as illustrated, several indirectly heated cathodes 12; the other members of the tube envelope, e.g. 10, 2, 3, 8 and 9, may be of ceramic. Coolant may circulate through the interior of the electrode 5, and this may be connected to the interior of the electrode 6 by coolant passages (not shown). Heated palladium hydrogen reservoirs 15 may be included in the tube.
Patent GB-1533439-A (GB)
Title: Mining machine
IPC: E21C31/02
Filed: 1977-07-15
Abstract: 1533439 Mining machines DRESSER EUROPE SA 15 July 1977 [23 April 1976] 16698/76 Heading E1F In a ranging, shearer drum mineral-mining machine the drive from a motor in the body 1 of the machine to a cutter drum 18 at the outer end of a vertically swingable, outboard ranging arm 11 is from the motor via a first reduction gearing 8, 9 housed in said machine body 1 to the input shaft 7 of a second reduction gearing housed in the arm, terminating in an output shaft 17 directly coupled to the drum, and having on at least one of its intermediate shafts 13, 14, 15 two gears such that the overall reduction of this second reduction gear is greater than the ratio between the number of teeth on the input and output gears of the second reduction gear. For Figure see next column
Patent GB-680846-A (GB)
Title: Improvements in or relating to luminescent materials
IPC: C09K11/71
Filed: 1950-07-04
Abstract: 680,846. Luminescent materials. GENERAL ELECTRIC CO., Ltd., and McKEAG, A. H. June 21, 1951 [July 4, 1950; March 30, 1951], Nos. 16700/50 and 7446/51. Class 39(i) A luminescent material comprises strontium pyrophosphate activated by tin, with possibly manganese as an additional activator. The method of preparing the material includes the step of heating a mixture of strontium pyrophosphate, or a substance or substances adapted to produce strontium pyrophosphate during the heating, with a compound of tin and possibly also with a compound of manganese at a temperature within the range of 700‹C to 1150‹C in a reducing atmosphere, preferably hydrogen. The substance adapted to produce strontium pyrophosphate on heating may be a strontium phosphate, especially strontium hydrogen phosphate, SrHPO 4 , precipitated from solutions of strontium compound and a phosphate, for example, strontium chloride, SrCl 2 , and diammonium hydrogen phosphate. The precipitate, after washing and drying, may be heated with a tin compound, with or without a manganese compound also, or the tin (and manganese) may be precipitated with the strontium phosphate from a solution containing a stannous compound (and a manganese compound) and the combined precipitate heated. Alternatively, the material may be prepared by heating a powdered, strontium compound, such as strontium carbonate, SrCO 3 , and a powdered phosphate, preferably diammonium hydrogen phosphate, with suitable compounds of tin (and manganese). The heating is preferably carried out in three stages; firstly, in air; secondly, in hydrogen; and thirdly, in air. Final heating in air is desirable to reduce the body colour of the material, giving a substantially white product. The preferred compounds of tin and manganese are phosphates of such composition that they are converted to pyrophates on heating. The amount of tin is not critical, but is preferably 1 to 2 per cent by weight of the material, and it should be present in the divalent state and is therefore introduced initially in the form of a stannous compound. The material is excited to luminescence of a blue colour, with a very short afterglow, by ultraviolet radiation of wavelength 2537A. The addition of manganese, which may comprise up to 10%, and preferably 2 to 5% of the weight of the material, causes the colour to shift towards the red end of the spectrum. The brightness of the luminescence may be improved by the inclusion, in the initial mixture to be heated, of a small excess of the phosphate radical, P 2 O 5 , which may be introduced by adding diammonium hydrogen phosphate, the actual amount added being determined by trial with each new batch of starting materials.
Patent GB-1085664-A (GB)
Title: Stackable-chairs stand and trolley
IPC: B62B3/10
Filed: 1965-04-21
Abstract: 1,085,664. Stands. J. FRENCH. April 19, 1966 [April 21, 1965], No. 16742/65. Heading A4H. [Also in Division B7] A stand for supporting a stack of nested chairs comprises a base 1, which may be provided with castors, having a platform 14 on which the legs are supported and a frame 4, 9 carrying a transverse member 11 on which the backs are supported. The platform 14 and member 11 are preferably adjustable to ensure that the longitudinal axis of the chair stack is vertical.
Patent GB-1311211-A (GB)
Title: Sealant
IPC: C04B41/48
Filed: 1970-04-08
Abstract: 1311211 Coating surfaces MINNESOTA MINING & MFG CO 8 April 1970 [9 April 1969] 16753/70 Heading B2E [Also in Division C3] A surface,. e.g. of concrete is treated to prevent leakage through cracks therein by applying thereto at least one continuous coating of a moisture-curable, cross-linkable NCQ terminated prepolymer, Q being oxygen or sulphur, the prepolymer, upon curing in the presence of moisture, providing a resilient, cross-linked polymer having a minimum abrasion resistance of 1.5 gram max weight loss, the coating exhibiting a crack extension characteristic of at least 0.5 cm. The prepolymer is the product of at least one organic polyisocyanate or polythioisocyanate with a molar excess of one or more organic compounds having a plurality of hydroxy, thiol or amine groups. Numerous suitable isocyanates are listed as well as suitable polyols, such as polyethers, thiol terminated poly(oxyalkylene) glycols, hydroxy terminated polysulphides and hydroxy terminated polyesters. Another polymer, such as polystyrene, may be present. A primer, for example an organosilane such as gammaaminopropyltriethoxy silane may first be applied. The coating may be applied by a trowel, spray or paint roller.
Patent GB-273323-A (GB)
Title: Improvements in power driven load-lifting trucks
IPC: B62D7/14
Filed: 1927-06-24
Abstract: 273,323. Romine, R. T. June 25, 1926, [Convention date]. Trucks.-A load-lifting and transporting truck has a low frame 10, driving-wheels 11, two pairs of double load-supporting wheels 7, 9, and means for raising the platform 24. The wheels 7, 9 are journaled in a sub-frame 21 which pivots on a transverse bar 23 carried bv the frame 10. The platform 24 is pivoted to the frame 10 by two lateral bars 30 and a link frame 25. It is raised by means of a shaft 38 which is pulled up by an electric motor through worm gear 39, 40, and the toggle action of the bars 35, 36. All the wheels are mounted on vertical swivels and are interconnected by the system of steering arms 46 - - 49, 59, 60 and links 51, 54, 61 shown in Fig. 5, the load-bearing wheels and the driving wheels being connected to the steering column 57 by rods 55 and 63 respectively.
Patent GB-254873-A (GB)
Title: Improvements in safeguarding against aerial attacks
IPC: F41H11/04
Filed: 1925-07-01
Abstract: 254,873. Steinmetz, J. A. July 1, 1925. Aerial warfare.-A defence against an aerial attack is obtained by the release at intervals from moving aircraft of a series of parachutes C, each supporting far below a contact bomb E by means of a cable D transverse to the direction of the attacking aircraft to form a slowly descending barrage of aerial bombs, which, when the enemy aircraft encounter the cables, are drawn into contact with these aircraft, thereby destroying them. The bombs E have their firing contacts e at their upper ends to ensure this action; and this arrangement enables the bombs to drop in safety to the ground if they have not previously been exploded. The lengths of the cables may be adjustable. Specifications 17033/13, 128,294, and 129,329 are referred to.
Patent GB-461308-A (GB)
Title: Improvements in automatic feed water valve for boilers
IPC: F22D5/08
Filed: 1936-06-18
Abstract: 461,308. Boiler-feed valves. MAHLER, R. June 18, 1936, No. 16942. Convention date, Aug. 21, 1935. [Class 135] In float-regulated boiler-feed valves, the float in the boiler is connected to an arm 13 linked by a rod 15, passing through a vertical tube 9, and a lever 17 to the valve 18 controlling the supply from the feed-water pipe 6. The lid 1 of the chamber 2, to which the tube 9 and pipe 6 are connected is secured to the chamber body by a stirrup 4 tightened in position by a screw 3.
Patent GB-598895-A (GB)
Title: Improvements in and relating to the starting of internal combustion engines and fuels therefor
IPC: F02N99/00
Filed: 1944-09-05
Abstract: A fuel suitable for starting internal combustion engines at low temperatures comprises essentially a mixture of several lower hydrocarbons in the following percentages by volume, C2 not more than 5 per cent, C3 from 10 to 25 per cent, C4 from 15 to 45 per cent. and C5 from 30 to 40 per cent. Preferably there is also added C6-C8 hydrocarbons or ordinary or aviation gasoline in an amount from 10 to 25 per cent. by volume of the final fuel mixture.  The hydrocarbons employed may be normal or iso-paraffins or olefins or mixtures of these and various fuel ingredients may be added also such as top lubricants, anti-detonation agents and gum inhibitors.  In the examples fuel compositions are described consisting of (1) propane, isobutane, n-butane, isopentane, n-pentane and neohexane, (2) propane, isobutane, n-butane, isopentane, neohexane and isooctane and (3) propane, n-butane, isopentane and aviation gasoline.
Patent GB-252918-A (GB)
Title: A new or improved folding wardrobe or dust cover
IPC: A47G25/54
Filed: 1925-07-02
Abstract: 252,918. Jones, H. M. July 2, 1925. No Patent granted (Sealing fee not paid). Garment racks. - A folding garment hanger comprises two wire frames D, E, pivoted at C to the ends of a bar A, stops B being provided for supporting the frames at right angles to each other. The bar A is provided with a suspension loop F and a hook G the stem G<1> of which is passed upwards through a hole in the bar A, its end G<2> being bent to engage between the sides of the loop F to prevent rotation of the hook. The central portions of the sides of the loop F are bent offset so that the hook G may be rotated in line with the bar A when the stem G<1> is pushed upwards through the bar. The hanger is provided with a dust cover comprising a top portion H, and a back portion I provided with spaced battens J, the lowermost of which is provided with hooks K to receive a batten M at the lower edge of the front portion of a cover L extending from the frame D, the lower edges of the side portions being engaged with clips at the rear of the lowermost batten J. The frame D may be replaced by a board. According to the second Provisional Specification the battens may be provided with hooks and may be inserted in pockets formed by stitching across doubled material. The battens may be replaced by light metal frames. According to the third Provisional Specification the bent end G<2> of the hook G may engage a recess in the top edge of the bar A instead of between the side members of a suspension loop. According to the first Provisional Specification, the device, without the dust cover and hook G, may be used as a towel or garment rail.
Patent GB-630335-A (GB)
Title: Paper pulp beating machines
IPC: D21D1/02
Filed: 1947-06-27
Abstract: 630,335. Paper pulp beaters. AMERICAN CYANAMID CO. June 27, 1947, No. 17009. Convention date, Feb. 5, 1945. [Class 96] Saturated or superheated steam, e.g. at 150 lbs. per square inch pressure, is directed towards the backfall 12 of a paper pulp beater from nozzles 13 near the mid-feather 6 and from nozzles (not shown) near the outer wall. A pipe 18 &c. in the backfall may supply steam to other nozzles 21. Waste paper containing melamine resin, sulphite, sulphate, cotton, and flax pulp may be so treated.