baber/WOPTO huggingface dataset:
Patent GB-852618-A (GB)
Title: Compressors having labyrinth-sealed unlubricated pistons
IPC: F04B39/04
Filed: 1959-03-04
Abstract: 852,618. Pistons. SULZER FRERES S.A. March 4, 1959 [March 14, 1958], No. 7596/59. Class 122 (1). In a piston compressor comprising a piston 3 reciprocable in a cylinder 1 and having labyrinth sealing grooves 2 on its periphery, the piston is centred in its cylinder by gas pressure in the gap between the piston and the cylinder, which pressure automatically increases in any sector where a reduction in the gap occurs due to eccentricity of the piston. In the arrangement shown in Fig. 1, each end of the piston facing the compression chambers 6, 7 has a frusto-conical smooth part 9, 11 separated from a labyrinth part 2 by annular grooves 10. When the piston is concentric with the cylinder the pressure in the gap due to the gas pressure in chambers 6 or 7 is the same all round the piston but if the piston becomes eccentric, as shown, the pressure in the reduced sectors 14, 16 increases and urges the piston towards its central position. In a single acting compressor the part 11 may be omitted. Holes 65, 66 may be provided in the grooves 10 and supplied with pressure gas from either the chambers 6, 7 or an external source. In a modification, Fig. 3, upper and lower piston parts 18 and 19 are separated by .grooves 10 from a central labyrinth part 2 and provided with centring chambers 22 communicating with the grooves 10 by throttling passages 23, axial grooves 21 opening into the chambers 6 or 7 being provided between adjacent chambers 22. During the piston downward stroke gas from the chamber 7 flows through the upper groove 10 and passages 23 to the chambers 22 to provide a centring action on the part 18. Similarly, during the upward stroke, a centring action occurs on the part 19. In an alternative arrangement, the chambers 22 and grooves 21 are connected to the chambers 6 or 7 or grooves 10 as indicated by the chain-dotted lines. In a further modification, Fig. 4, the piston 3 is hollow and has two labyrinth parts 31, 32 separated by grooves 10 from a centring part 34 having chambers 33 communicating by throttling passages 35 with the interior 36 of the piston which is supplied with pressure gas from the chambers 6, 7 through non-return valves 37, 38. In another modification, Fig. 5 (not shown), the piston has two centring parts spaced by a labyrinth part and having chambers 33 supplied with gas from the chambers 6, 7 through passages in the piston. In yet another modification, Fig. 6 (not shown), the valves 37, 38 are omitted and pressure gas is supplied to the piston interior 36 through passages in the piston-rod 62. Circumferentially spaced chambers may be arranged in the cylinder wall and supplied through a throttling passage with pressure gas either from the chambers 6 or 7 or from an external source to have a centring effect on the piston.
Patent GB-340181-A (GB)
Title: Device for sharpening lead pencils
IPC: B43L23/00
Filed: 1930-03-08
Abstract: 340,181. Pencil sharpeners. SHANNON, S. J. L., 50, Wellington Street, Glasgow. March 8, 1930, No. 7617. [Class 146 (iii).] In a pencil sharpener, a flexible abrasive strip 5, such as sand-paper is secured at its ends to a pair of rollers 2, 3 and led over a support 4 arranged between the rollers, so that it presents flat abrasive surfaces 6. Fresh abrasive surfaces are presented on the support by rotating the rollers, which are fitted with knurled knobs for this purpose. The support 4 is shown as a U-shaped metal strip carried by a metal frame 1 in which the rollers are mounted.
Patent GB-526146-A (GB)
Title: Improvements relating to the formation of co-precipitated calcium sulphate and ferrous hydroxide
IPC: C04B28/14
Filed: 1939-03-09
Abstract: 526,146. Calcium sulphate; ferrous hydroxide COLTON, H. S. March 9, 1939, No. 7644. Convention date, March 17, 1938. Drawings to Specification. [Class 1 (iii)] [Also in Group V] Shaped articles are obtained by adding to sulphuric acid iron pickle liquor an alkaline calcium compound, e.g., CaO, Ca(OH) 2  or CaCo 3  to neutralize the sulphuric acid and react with the ferrous salts, and also adding before or after precipitation a filler such as a fibrous material, asbestos, clay or cinders, filtering the mass containing calcium sulphate and ferrous hydroxide and compressing it to form a shaped article. On drying and exposure to air the ferrous hydroxide becomes oxidized. The product may be used for wall boards, pottery and ceramic substitutes, insulating materials. Specifications 3505/13 and 107,807, [both in Class 1 (iii)], are referred to.
Patent GB-609370-A (GB)
Title: Improvements in the treatment of fibrous materials
IPC: D04H1/4258
Filed: 1946-03-12
Abstract: 609,370. Felt. SPEAKMAN, J. B., CRUMMETT, A., and BRITISH CELANESE, Ltd. March 12, 1946, No. 7710. [Class 42(ii)] In the production of felt by applying a felting treatment to a mixture of feltable animal fibres of an organic fibre-forming material soluble in organic liquids, at least a part of the felting treatment is carried out while the latter fibres carry a softening agent. The animal fibres may comprise wool or carrotted fur fibres, and the other fibres may comprise cellulose esters or ethers, e.g. cellulose acetate, propionate or butyrate, mixed esters such as cellulose acetate-propionate and acetate-butyrate, or ethyl or benzyl cellulose, and may be used directly as obtained by dry spinning or by dry spinning followed by a stretching process in the presence of a softening agent such as hot water or wet steam. Alternatively, fibres of polymerized vinylidene chloride, or of a co-polymer of vinyl chloride with vinyl acetate, or of linear superpolyamides e.g. nylon, may be used. As softening agents single organic substances, or mixtures of these, or mixtures with water may be employed. For cellulose acetate fibres, mixtures of water with diacetone alcohol, acetone, ethylene-methy. lene ether, dioxane, ethyl acetate, phenol, cresols, lower aliphatic acids such as formic acid, acetic acid or halogen or hydroxy derivatives of such acids such as monochloracetic acid, glycollic acid or lactic acid, or diacetone alcohol or glycol monomethyl ether acetate may be used; these substances may be replaced wholly or in part by inorganic softening agents for cellulose esters or ethers, such as ammonium, alkali metal or alkaline earth metal thiocyanates. A batt of the mixed fibres may be prepared by cardings several layers being superposed if desired, and then soaked in the softening liquor, squeezed, hydroextracted or otherwise treated to bring the amount of liquid retained to about 100 per cent of the weight of material, and then subjected to a felting process. The material may be partially hardened before soaking. Felting may be by a felt-hardening machine, or milling stocks or a roller type milling machine. It is stated that moistening with aqueous acetic or formic acid accelerates the felting of a mass consisting entirely of wool fibres or other animal fibres capable of felting.
Patent GB-423546-A (GB)
Title: Improvements in and relating to mirror-screws for television and like purposes
IPC: H04N3/08
Filed: 1934-03-10
Abstract: 423,546. Television receivers. SUDDEUTSCHE TELEFON - APPARATE-, KABELUND DRAHTWERKE AKT.-GES. TEKADE, Nuremberg, Germany. March 10, 1934, No. 7714. Convention date, Nov. 9, 1933. [Class 40 (iii)] The reflecting surfaces of the angularly displaced elements of a mirror screw employed in a television receiving arrangement are spherically formed or ground before the elements are displaced to form the mirror screw. The opposite surfaces of the mirror elements are similarly shaped so that the centre of gravity of each element lies in the axis of rotation of the screw. The controlled -light-source and the mirror screw are built in a single unit and the light-relay employed may be a Kerr cell or a crystal cell, such as that described in Specification 422,370.
Patent GB-1085995-A (GB)
Title: Automatic belt reeling device for safety belts for motor vehicles
IPC: B60R22/42
Filed: 1966-02-22
Abstract: 1,085,995. Safety harness. SIGMATEX A.G. Feb. 22, 1966 [March 23, 1965], No. 7723/66. Heading A3V. An automatic belt reeling device for a motor vehicle safety belt comprises a presser member 7 which is moved by a sudden pull on the belt 3 to clamp the belt against a counter pressure member 4 preventing further withdrawal from the belt reel 2. The presser member 7 is mounted in slots 8 in the housing 1 of the device and is normally pulled away from the reel by springs 6 which exert an eccentric pull on the presser member 7 which, combined with the force P due to normal withdrawal of the belt against the force of a reeling spring 10, rotates the member 7 in an anticlockwise direction so that it pivots upwards into a notch 9 thus retaining the member 7 in an unlocked position. When the force P is reduced the tension in the belt between the reel 2 and the member 7 causes this member to rotate clockwise out of the notch 9 so that a sudden pull P on the belt can cause the member 7 to slide towards the reel, and clamp the belt. Hand grips (11), Fig. 2 not shown, may be provided on the ends of the member 7 so that it may be positioned manually.
Patent GB-1453375-A (GB)
Title: Vehicle driver protecting steering arrangement
IPC: B62D1/19
Filed: 1974-02-20
Abstract: 1453375 Collapsible steering columns NISSAN MOTOR CO Ltd 20 Feb 1974 [22 Feb 1973] 7755/74 Heading B7H A steering column in a motor vehicle comprises a steering wheel 22 carried by an upper column section 24b which is tiltably connected to a lower section 24a by a universal joint 42, a plurality of circumferentially spaced straps 44 which normally prevent tilting of the upper section being connected to the sections by explosive bolts 46 which are fixed by a collision sensor when a collision occurs so that the upper section 24b can tilt downwardly to reduce the likelihood of the driver's head hitting the steering wheel. In another embodiment, the upper column section is held in position by a mounting bush attached to a support bracket by explosive bolts.
Patent GB-724114-A (GB)
Title: Improvements in or relating to phenanthridine compounds
Inventor: BARBER HARRY JAMES
IPC: C07D221/12
Filed: 1952-03-26
Abstract: The invention comprises 7-amino-9-(p-amino-phenyl) - 10 - methyl - phenanthridinium isethionate, and the preparation thereof by converting another quaternary salt into this by metathesis (e.g. by treatment of the sulphate in aqueous solution with barium isethionate), or by converting the corresponding pseudo base or quaternary hydroxide into the salt by the action of an isethionate of a volatile base, or isethionic acid.  In examples, 7-amino-9-(p-aminophenyl) - 10 - methyl phenanthridinium chloride is treated with sodium hydroxide, the product extracted with butanol and treated with 1) ammonium isethionate, or (2) isethionic acid.
Patent GB-1343745-A (GB)
Title: Time setting device for an electronic timepiece
IPC: G04C9/00
Filed: 1972-02-21
Abstract: 1343745 Watches CITIZEN WATCH CO Ltd 21 Feb 1972 [12 July 1971] 7883/72 Heading G3T [ Also in Division H1] In an electric timepiece having an axially movable setting stem 2, an additional outer stem position is provided in which the drive circuit is de-energised to conserve the battery 19 when the timepiece is stored. Three stem positions are determined by a lever 3 which is rotatable about a pin 3e and carries a pin 3b engaging in notches 8a-c on a resilient arm 8d g a spring member 8. Fig.1 shows the innermost stem position in which a clutch wheel 5, which is slidable on the stem 2, meshes with a wheel 4 having a tooth 4a for setting a date ring 111. Resiliently mounted contacts 16a, 17a are held closed by lever portion 3c, energizing circuit block 18 so that a tuning fork 13 oscillates and advances an index wheel 14 by means of a drive pawl 12. In an intermediate stem position Fig. 2 (not shown), the clutch wheel 5 engages a time setting wheel 6. Contacts 16a, 17a remain closed to energise the fork 13 but a non-return pawl 11 is lifted off the wheel 14 by a pin 9a on a lever 9. A further portion 9b of the lever arrests a disc 15 fixed to the seconds hand shaft. In the outermost stem position, contact 17a is allowed to move away from contact 16a by anti-clockwise rotation of the lever 3. The clutch wheel 5 occupies an intermediate position, meshing neither with the wheel 4 nor the wheel 6. A particular form of arm 8d is described Fig. 5 (not shown) which produces a mechanical impulse to initiate oscillation of the fork 13 when the stem 2 is pushed fully in.
Patent GB-1211653-A (GB)
Title: Dump scraper
Inventor: BERTHOLD HEINZ
IPC: B65G65/06
Filed: 1969-02-13
Abstract: 1,211,653. Dump scrapers. POHLIGHECKEL - BLEICHERT VEREINIGTE MASCHINENFABRIKEN A.G. 13 Feb., 1969, No. 7925/69. Heading B8G. A dump scraper comprises a travelling gantry 2 in a shed 1 with a main scraper chain conveyer 3 articulated to a gantry foot 8 on one side of the dump of bulk material 7 and an auxiliary scraper chain conveyer 4 articulated to a gantry foot 9 on the other side of the dump. Initially, the main conveyer 3 scrapes material to a discharge conveyer 21 but when its free end 5 has been lowered to a point below the auxiliary conveyer 4 the latter is switched on to transfer loosened material to the main conveyer 3. Both conveyers are then uniformly lowered. In a modification, Fig. 4 (not shown), the auxiliary conveyer 4 is connected to the gantry foot 9 through a link bar (10) pivoted both to the conveyer 4 and to the gantry foot 9. A plurality of main and auxiliary conveyers 3, 4 may be employed, Fig. 5 (not shown).
Patent GB-502438-A (GB)
Title: Improvements in or relating to oil burners
IPC: F23D5/00
Filed: 1938-03-15
Abstract: 502,438. Liquid - fuel burners. SIRONE CO., Ltd. March 15, 1938, No. 7999. Convention date, March 25, 1937. [Class 75 (i)] An oil-fuel burner for use in domestic cooking ranges or stoves or for heating drying chambers comprises a burner pot 17 mounted by a screwed stem 18 in a cylindrical combustion chamber 12 which opens at one end into the space to be heated and is nearly closed at the other end by a removable plate 23. The chamber 12 is surrounded by a light metal casing 25 secured to a flange 13 on the chamber and supported by screwed pins 40. Air entering the casing 25 through an opening regulated by a hinged flap 28 passes partly through a triangular aperture 16 into the chamber 12 for the combustion of the fuel supplied by a pipe 22 to an asbestos pad 19 in the burner pot and partly through apertures 14 in the flange 13 to induce a flow of atmospheric air through an opening 13b between a plate 13a and the chamber 12 to mix with the combustion products issuing from the chamber 12. An adjustable perforated ring 15 may be provided for regulating the apertures 14. The fuel pipe 22 may pass either through an aperture 21 in the chamber 12 or the aperture 16 which is formed with tapering sides to agitate the air currents impinging upon the burner pot. The lower part of the chamber 12 is formed with holes 20 for draining unburnt fuel. Vapour to mix with the air may be provided by a water well 30 in the casing 25 which is provided with a drain 34 and an inspection cover 33.
Patent GB-434770-A (GB)
Title: A control device for gas-heated apparatus for heating liquids
IPC: F24H9/20
Filed: 1935-03-15
Abstract: 434,770. Valves. JUNKERS & CO., GES., 39, Junkerstrasse, Dessau, Anhalt, Germany.-(Assignees of Bosch Akt.-Ges., R. ; 4, Militarstrasse, Stuttgart, Germany) March 15, 1935, No. 8104. Convention date, March 17, 1934. [Class 135] A control device for gas-heated apparatus for heating liquids such as water is provided with a safety-ignition device, a diaphragm 7 acted upon by the water to be heated for con- .trolling the main gas valve 17, and a valve controlled by the heat of the ignition flame situated in the water passages of the gas-control diaphragm so as to influence the pressure difference acting on the diaphragm and thus prevent opening of the gas valve 17 except when the ignition flame is alight. The chambers 8, 9 below and above the diaphragm 7 communicate by passages 33, 34 respectively with a chamber 31 into which fits a member 29 fixed to the lower end of a tube 28 containing water and terminating in a part 26 exposed to the action of the ignition flame 25. A diaphragm 27 grips the lower end of the member 29 by its own resilience and, when the burner 25 is alight, is caused by the expansion of the water in the tube 28 to engage a seating 32. Communication between the chambers 8, 9 through the passages is thus prevented and the flow of water to be heated can thus set up a pressure difference in the chambers 8, 9 to operate the main gas valve 17. If the flame 25 is extinguished, the diaphragm 27 rises due to the contraction of the water in the pipe 28, and the passages 33, 34 prevent the formation of the necessary pressure difference in the chambers 8, 9 to operate the valve 17. If excessive pressure occurs in the pipe 28 the diaphragm gives sufficiently at its edges to allow water to escape or a non-return valve may be provided in the member 29 for this purpose. A non-return ball valve 35 in the member 29 allows water to flow back into the tube when the flame 25 is extinguished. The supply of gas to the ignition flame 25 may be automatically reduced, if the pressure in the tube 28 rises above a certain level, by means of a valve 38 actuated by a spring-controlled diaphragm 37 subject to the pressure in the tube, the diaphragm being so adjusted that when water is flowing it does not act until the diaphragm 27 engages the seating 32. When the draw-off cock is turned off, the water pressure in the chamber 31 rises to that of the water main and causes the diaphragm 27 to be raised to close the gas valve and the diaphragm 37 to be actuated to reduce the supply of gas to the ignition flame 25.
Patent GB-105457-A (GB)
Title: Improvements in and relating to Shock Absorbers.
Inventor: FLETCHER HENRY OSGOOD
IPC: F16F9/48
Filed: 1916-06-08
Abstract: 105,457. Fletcher, H. O. June 8, 1916. Dash-pots; vibration-dampers. - A shock-absorber for controlling the action of a spring, which will act to resist abnormal movement of the spring in either direction from its neutral position without interfering with the lesser vibrations of the spring, comprises oppositely-disposed resisting-members so arranged that, when the two spring-controlled elements move laterally to each other in either direction from their normal position, the same movement of the resisting- members is produced. As shown applied to an automobile, the resisting- members are in the form of plungers 6 which are provided with adjustable valves 21 and work in sleeves 17 fitted in the arms 5 of a liquid-containing casing 4 secured to the running-gear. The plungers 6 are attached by links 7 to a head 10, which is attached by a rod 13 to the vehicle body and working in the vertical arms 11, 12 of the casing 4. The resistance that is offered to the movement of the plungers 6 is increased by employing a plate 23 and a yielding packing 25 adapted to to be pressed against the resilient end of the sleeve 17 bv screws 24. The frictional resistance may be used alone, the liquid being omitted from the casing 4; or the liquid resistance may be used alone.
Patent GB-1174767-A (GB)
Title: Improvements in or relating to Centrifugal Pumps
Inventor: CARSLAW CHARLES HENDERSON
IPC: F04D29/12
Filed: 1966-02-24
Abstract: 1,174,767. Centrifugal pumps. DRYSDALE CO. Ltd. Jan.12, 1967 [Feb.24, 1966], No.8153/66. Heading F1C. In a centrifugal pump, air entrained with the pumped liquid and collecting in shaft seal chamber 4 is vented through a pipe 11 which may be connected to a vacuum pump. The chamber 4 contains several radial partitions 13 which prevent rotation of any leakage liquid therein and consequent blockage of the air vent.
Patent GB-1060534-A (GB)
Title: Vehicle suspensions, particularly for rail vehicles
IPC: B61F5/30
Filed: 1965-02-25
Abstract: 1,060,534. Anti-roll devices on vehicle suspensions. SOC. NATIONALE DES CHEMINS DE FER FRANCAIS, and G. L. GUILLEMARD. Feb. 25, 1965 [May 14, 1964], No. 8185/65. Headings B7D and B7L. Rail or road vehicle suspension comprises cantilever-suspension levers 7, Fig. 2, supporting fixed axle boxes 8 and wheel sets 9, torsion bars 4 keyed at 3 and 5 between anchorage 2 and lever hubs 6 respectively, and additional torsion members, generally indicated at 11, connecting each pair of hubs to exert an antiroll effect. The additional torsion members resemble crank-shafts supported on bearings 10 and consisting of hub extensions 13 connected by webs 12 to cross members 12<SP>1</SP>. Their resilience may be altered by dividing one or both webs 12 and interposing between the two halves helical compression springs, Figs. 6 and 7 (not shown). Also resilient means may be provided along the members 12<SP>1</SP> and 13. In another embodiment, Fig. 3, the additional torsion members comprise tubes 22 through which extend first torsion members 20 from one hub of a pair of levers to anchorages adjacent the other hubs of the pairs at opposite sides of the suspension. Alternatively, the torsion members 20 may both be anchored to a common block, Fig. 4 (not shown).
Patent GB-197138-A (GB)
Title: Improvements in the manufacture of scythes
IPC: B21D53/72
Filed: 1922-03-22
Abstract: 197,138. Tyzack, W., Tyzack, J. S., Havenhand, W. H., and Habbijam, J. H., (trading as Tyzack & Co., W. A.). March 22, 1922. Scythes.-The blauk of a " crown " or " solid " scythe is first rolled or hammered to the required length, thickness, and width, being formed with a thickened ridge or flange along one of its longitudinal edges. The rib or flange is hammered or otherwise operated upon to form the back, tapering from the heel towards the point, and finally the blank is bent to the required curve and subjected to the finishing operations of hammering, hardening, tempering, and grinding.
Patent GB-641346-A (GB)
Title: Improvements in or relating to piezoelectric transducer
IPC: B06B1/06
Filed: 1946-03-18
Abstract: 641,346. Piezo-electric vibrators. RAYTHEON MANUFACTURING CO. March 18, 1946, No. 8298. Convention date, Nov. 7, 1941. [Class 40 (iv)] A piezo-electric transducer comprises an elongated bar 1 having a number of recesses joined by a channel 3 containing the electrical connections, and a piezo-electric crystal element 2 positioned in each recess having electrodes at its side substantially perpendicular to the direction of the bar and mounted against the base of the recess, each recess being covered by an individual plug member sealing its open end, the inner surface of the plug being acoustically connected to the end of the crystal by a layer of cement. The bottom of the recess is formed with a heavy central section surrounded by a thin compliance web. In a modified construction a plate member can be used instead of the bar 1.