baber/WOPTO huggingface dataset:
Patent GB-540049-A (GB)
Title: An improved manufacture of synthetic compositions of matter
IPC: C08L21/00
Filed: 1940-03-29
Abstract: 540,049. Synthetic rubber compositions. STANDARD OIL DEVELOPMENT CO. March 29, 1940, No. 5670. Convention date, April 29, 1939. [Class 2 (iii)] [Also in Group V] A material of high tensile strength and elasticity and resistance to chemical substances comprises a cured synthetic polymer prepared from a mixture of iso-olefinic and diolefinic materials and a material selected from natural rubber, synthetic rubbers and cellulose ethers or esters of organic acids. Examples of polymers are those from isobutylene or ethyl methyl ethylene with butadiene, isoprene, chloroprene or cyclopentadiene. Synthetic rubbers include neoprene, "Buna" (Registered Trade Mark), polyethylene and butadiene-acrylic acid nitrile copolymers. If isobutylene and butadiene are used for the polymerization they may be obtained from the gaseous products of the cracking of crude petroleum. The polymer is cured by heating with sulphur and, if desired, tetramethylthiuram mono- or di-sulphide. The cured product is milled and broken down on the mill, mixed with natural rubber which has also been broken down on a mill and the mixture is cured.
Patent GB-579401-A (GB)
Title: Improvements relating to dollhead bearings
IPC: F16C13/02
Filed: 1944-03-28
Abstract: 579,401. Pipe joints. ROBERTS, A. E., and GORDON, E. March 28, 1944, No. 5683. [Classes 99 (i) and 99 (ii)] In a doll - head bearing for a drying cylinder or the like a branch pipe connection between a main pipe 20 and the trunnion 1 has three pressure-closed ball- and-socket joints 7. 12, 18. A bearing 3 is housed in a casing 5 slidable axially on the support 4, the guide 6 supporting a casing 14 constituting an oil bath for the ball joint 12. Sockets for the balls 7, 12 are provided in a tubular member 10 which is connected to the trunnion 1 and has annular projections 11 to throw off surplus oil. The casing 14 and casing 5 are connected by spring-urged bolts.
Patent GB-784925-A (GB)
Title: Improved collapsible mattress
IPC: A47C4/54
Filed: 1956-02-24
Abstract: 784,925. Mattresses. OBRADOVIC, R. Feb. 24, 1956 [Feb. 26, 1955], No. 5812/56. Class 52(4) In an air mattress comprising two rectangular linen sheets 1, 2 joined together by double seams 3, 4 which form tubular bags 5 open at one end for the reception of inflatable rubber tubes 6 each having a valve (not shown) at the accessible end, a separately inflatable cushion 7 forms an integral part of the mattress or is permanently attached thereto. Specification 159,299 [CLass 52(4)] is referred to.
Patent GB-885471-A (GB)
Title: Improvements in printing presses
IPC: B41L19/00
Filed: 1959-02-20
Abstract: 885,471. Rotary-offset printing-machines. TOWNSEND, R. T. Feb. 20, 1959 [April 21, 1958], No. 5922/59. Class 100(2) An auxiliary rotary offset printing machine has means enabling it to be detachably mounted on a main rotary offset printing machine for printing on the blanket cylinder of the main machine matter in addition to that printed on the blanket cylinder by the plate cylinder of the main machine, e.g., for printing in a second colour or for overprinting. The auxiliary machine has brackets, e.g. 22, Fig. 3, having lugs 24 which engage a flange 18 on the main machine, set screws 26 locking these brackets to the flange. The detachable machine has side frames, 30, 32, Fig. 6, enclosed in guards, e.g. 162, Fig. 3. A plate cylinder 34 of the detachable machine engages the blanket cylinder 62 of the main machine which engages a plate cylinder 64. Cylinder adjusting devices, cylinder bearings, cylinder trips:-A supporting rod 86 secured to the side frames of the detachable machine passes through the heads of studs 88, 90, 92 (Fig. 5, not shown) secured to a bar 96, the stud 88 being pivoted to the bar 96, while the studs 90, 92 engage slots 100 in the bar 96, thus providing an angular adjustment of the rod 86, Fig. 3, and side frames 30, 32, Fig. 6, with respect to the blanket cylinder 62, Fig. 3, for impression adjustment. The bar 96 is secured to ears 102 of the brackets, e.g. 22 by screws 104, levelling screws 106, 108 being provided to level the shaft 114 of the plate cylinder 34 such that it is parallel to a horizontal plane through the axis of the blanket cylinder 62. The shaft 114 of the plate cylinder 34 is connected to a rod 110, passing through slots 116 in the brackets, e.g. 22, by turnbuckles 112 for adjusting the shaft 114, such that it is parallel to a vertical plane through the axis of the cylinder 62. The ends of the shaft 114 carrying the turnbuckles 112, Fig. 6, are eccentric, such that rotation of an impression handle 122 secured to the shaft 114 puts the impression "on" or "off", the handle 122 having a latch 128 engageable with a notch in a disc 130 to retain the handle in impression "on" position. The cylinder 34 rotates on ball bearings 131 slidable longitudinally of the shaft 114 and spaced apart by sleeves 132, 134 having cam ends 132a, 134a. The sleeve 134 is secured by a pin 44 to the head 140 of a screwed rod 142 having a micrometer adjusting nut 145 carrying a scale 152 (Fig. 8, not shown) cooperating with an index 154 on a sleeve 148, the nut 145 being retained by a lock nut 146. Damping apparatus:- Weak acid solution, to repel ink from the non-printing areas of the plate 66, Fig. 3, of the plate cylinder 34, is supplied to a trough 36 by a bottle 82 fitted on a neck 84. The trough 36 is removed by rotating it counterclockwise through 60 degrees thereby permitting flats 80,Fig. 2, on studs 78 to engage flats 76 on end members 72 of the trough 36, thus allowing withdrawal of the trough.
Patent GB-434648-A (GB)
Title: Apparatus for treating gums and other parts of the cavity of the mouth
IPC: A61H13/00
Filed: 1935-02-25
Abstract: 434,648. Pipe couplings. KOLISCH, P., 52, Konstanzerstrasse, Wilmersdorf, Berlin. Feb. 25, 1935, No. 6006. Convention date, Feb. 23, 1934. [Class 99 (i)] [See also Group VI] Massage appliances actuated by water under pressure are connected to a source of water supply by a T-piece 9 carrying a packing 11 of caoutchouc formed with an opening to receive the spherical end of a tube 12 connected to the water supply pipe.
Patent GB-1425461-A (GB)
Title: Charging of glass furnaces
IPC: C03B5/04
Filed: 1972-02-09
Abstract: 1425461 Charging glass furnaces GLASSWORKS EQUIPMENT Ltd 15 Feb 1973 [9 Feb 1972] 6009/72 Heading C1M [Also in Division F4B] Charges of batch are fed into the interior of an end-fired glass melting furnace by the use of a reciprocable pusher, the orientation of which is adjustable so that successive charges are discharged in different directions. As shown, the pusher 40 is mounted on a water box 23 which is in turn mounted on a pivot pin. The box 23 and pusher 40 can be moved about the pivot pin between two or three positions by means of an electric motor 31 operating through a crankshaft and a link 26. Limit switches render the pusher inoperative while it is being moved between positions. The pusher is located in a doghouse on one side wall of the furnace.
Patent GB-588952-A (GB)
Title: Means for charging storage batteries
IPC: H02J7/12
Filed: 1945-03-12
Abstract: 588,952. Charging and discharging batteries ; electricity supply. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. March 12, 1945, No. 6091. Convention date, March 23, 1944. [Class 38 (iv)] In a system for charging two storage batteries, each through a rectifier, from an A.C. network, the charging current for one battery is automatically controlled by the charging current of the other. In one arrangement, Fig. 1, batteries 1 and 2 are connected respectively to rectifiers 3 and 7, both fed from A.C. supply terminals 4, the former through a D.C. saturable reactor 6 and regulating device 5 and the latter through a current transformer 8, such that the charging current of battery 2 is proportional to that of battery 1. In another arrangement, Fig. 2, batteries 1 and 2 are arranged to be connected in series to discharge into a load 20 connected in parallel with the D.C. side of rectifier 3 which normally also " trickle-charges " the battery 1 through resistance 18, saturating winding 11 of the reactor 10 and contact a of switch 16. The charging current for battery 2 controlled by the saturating winding 11, is fed from rectifier 7, which is connected through transformer 9 and the reactor 10, in parallel with the A.C. supply to rectifier 3 from the secondary of transformer 5, the primary of which is connected to A.C. supply terminals 4. If the A.C. supply voltage falls appreciably, relay 14 operates to change switch 16 to contact b, thus connecting battery 2 in series with battery 1 across the rectifier 3 and load 20. Contact 17 also closes to shortcircuit the saturating winding 11. Unidirectional dry valves 15 and 19 respectively facilitate the change-over of contact 16 from a to h and prevent the saturation of coil 11 in the wrong " sense " by battery discharge current. An additional saturating winding 12 assists the regulation of reactor 10 in controlling the charging current of battery 2. A regulating device 6 in the primary circuit of transformer 5 may act to maintain constant D.C. voltage at rectifier 3 and may consist of a D,C, saturable reactor. The device may include a currentlimiting device. Specification 570,047 is referred to.
Patent GB-990932-A (GB)
Title: Improvements in or relating to compressors
IPC: F25B31/02
Filed: 1962-02-16
Abstract: 990,932. Compressors. M. CLAUSEN, [trading as FIRMA DANFOSS VED. ING. M. CLAUSEN]. Feb. 16, 1962 [Feb. 24, 1961], No. 6168/62. Heading FIN. The exhaust silencer 16 of a hermetically sealed refrigerant compressor is protected from oil splashed from the sump 20 or from lubricating points A, B of the crankshaft 6 and yoke supplied by a pump 21 by means of a shield 24 and the overhung end 23 of the motor support 5 thereby reducing the dissipation of compression heat within the casing 2, 3. Protection is also afforded by an intake silencer 14 mounted on the side of a cylinder 8 in which is reciprocated a piston 9. Compressed refrigerant is discharged through a tube 17. The motor is suspended from the casing 2, 3 by springs 4 only one of which is shown.
Patent GB-804075-A (GB)
Title: Aluminium alloys for implements and structural parts for use in mines below ground
IPC: C22C21/00
Filed: 1956-02-28
Abstract: Mining implements and structural parts in mines liable to be subjected to impact or friction, e.g. props and roof bars, are formed of an aluminium alloy containing at least 80 per cent of Al and 0.001 to 0.05 per cent of Be.  Alloys containing also 2 to 5.5 per cent of Cu and 0.4 to 1.8 per cent Mg or 1 to 5 per cent Mg and 2 to 7 per cent of Zn may be used.
Patent GB-608282-A (GB)
Title: Improvements in x-ray apparatus
IPC: G21K1/02
Filed: 1946-02-28
Abstract: 608,282. Rontgen-ray apparatus. PHILIPS LAMPS, Ltd. Feb. 28, 1946, No. 6245. Convention date, June 19, 1941. [Class 98 (i)] An X-ray tube having a diaphragm tube attached to the outside of its sheath to rock about an axis at right angles to that of the tube, has a slide shifting axially of the tube inside its housing, the diaphragm tube being pivotally connected to the slide and subjected to a translational movement during the shifting of the slide and to a rocking movement governed by a coupling between the housing of the tube so that the axis of the diaphragm tube is always directed to the focal spot. The tube itself may move up and down and be rotated about its axis. As shown, the earthed anode is a copper disc 4, Fig. 1, mounted at the end of a metal discharge tube 5 and has a focal spot 7 on a tungsten target 6. The tube 5 is surrounded by a sheath 9 having a lead coating 10, with an intermediate space 8 for the flow of a coolant. A member 12 slides over the sheath 9 and within a fixed casing 2, and may ride on bushes 30, 31 which may be resilient. The diaphragm tube 3 has a ball- or cylinder-and-socket connection 13 with the slide 12. Arms 15, 16, Fig. 2, attached to the diaphragm tube pass one on each side of the tube assembly, and are united at 26. The arms bear slots 20, 21 engaging pins 17, 18 mounted on the casing 2 with a common axis passing through the focal spot 7 at right angles to the diaphragm tube axis, and carry a sliding member 24, preferably a roller, travelling over the inside surface 23 of a cam slot 29 in a member on the casing 2. When the diaphragm tube 3 is moved in the direction of the X-ray tube axis, the slider 12 moves with it to shut off unwanted radiation, the action of the pins 17, 18 in the slots 20, 21 ensuring that the axis of the diaphragm tube always passes through the focal spot 7, and the surface 23 over which travels the member 24 being so shaped that the diaphragm tube is retained in the joint 13. A screw device 25 is provided on the piece 26 bridging the arms 15, 16 to clamp the diaphragm tube in any desired position.
Patent GB-725339-A (GB)
Title: Improvements in or relating to devices for towing motor vehicles having independently suspended front wheels
Inventor: PAGE ERIC STANLEY
IPC: B60D1/145
Filed: 1953-03-06
Abstract: 725,339. Couplings for vehicles. MANN, EGERTON & CO., Ltd. March 6, 1953, No. 6341/53. Class 103 (5). A towing connection comprises a tow bar 1 provided with a swivel eye 3 at one end and a resiliently mounted universal joint 4 having holes 15 for attachment of one or more alternative fittings for direct attachment to the towed vehicle. The attachment (Fig. 2) comprises a plate 6 provided with upstanding bosses 7 which engage in holes in the transverse chassis member, the plate being retained in position by cranked straps 8 which engage the upper surface of the chassis member. The attachment (Fig. 4) comprises a pair of arms 17 which retain their relative spacing by means of a lockable extensible bar 18 and which are provided with catch members 24 to engage in the open-ended jacking points on the towed vehicle.
Patent GB-1131953-A (GB)
Title: Static frequency changer
IPC: H02M5/44
Filed: 1966-02-14
Abstract: 1,131,953. Frequency changing, control of A.C. motors. BROWN, BOVERI & CO. Ltd. 14 Feb., 1966 [16 Feb., 1965; 13 April, 1965], No. 6455/66. Headings H2F and H2J. In a polyphase frequency changer of the rectifier-inverter type for supplying a variable frequency to an induction rotor at least some of the inverter elements 1-6 are shunted by a shut-off circuit comprising a saturable reactor 31 and a capacitor 11 to ensure a controlled conduction time for these elements, and reverse diodes 21-26 and series chokes 8 are included in the circuit. As shown the inverter half of a frequency changer comprises a bridge of thyristors 1-6 each shunted by a reverse current diode 21-26 and a shut-off circuit 11, 31 etc., the inverter feeding a motor 7. In operation prior to the firing of thyristor 1, its associated capacitor 11 is charged from the thyristor 4 saturating the reactor 31 against the direction of any bias applied thereto. On firing thyristor 1 the capacitor discharges through it and in so doing reverses the magnetization of the reactor, the time taken being dependent on the level of the bias. At the end of the discharge the capacitor tends to become reversely charged, thereby applying a reverse voltage to shut off the thyristor 1. Thyristor 3 is subsequently fired. The inductor/capacitor shut-off circuitry may be applied to only one half of the bridge, the other half being provided with conventional commutating capacitors. The voltage pulses applied to the motor arise during the overlap period when thyristors in each half of the bridge conduct together, i.e. on the period between the firing of thyristor 2 say and the shut-off of thyristor 1. It is desirable to keep these pulses constant with varying inverter frequency to obtain a constant motor flux. To achieve this the conduction period of the thyristors such as 1 is made to vary with the inverter frequency by adjusting the bias applied to the saturable reactor. This biasing current may be obtained from the motor terminals via a rectifier. Modified forms of the shut-off circuits which utilize common components are disclosed (Figs. 3 and 4, not shown).
Patent GB-1513846-A (GB)
Title: Fixing unit for an electrophotographic copying machine
IPC: G03G15/20
Filed: 1977-02-16
Abstract: 1513846 Heat-fixing apparatus WIFO WISSENSCHAFTLICHES FORSCHUNGSINSTITUT AG 16 Feb 1977 [18 Feb 1976] 06479/77 Heading B6C Toner images on a copy sheet 4 are heatfixed during transport on the upper run of a seamless, perforated metal conveyer band 5 to which the sheet is held by suction applied to the underside of said upper run. The band 5 is heated by at least one elongate heating element 8, 9, 10, 14 disposed within the zone encircled by the band 5 to heat a portion or portions of the band 5 remote from the fixing zone. A thermal sensor 16 enables thermostatic control of the band temperature. An infra-red heater 61 may additionally be included.
Patent GB-485408-A (GB)
Title: Improvements in or relating to air insulated electric cables
IPC: H01B11/00
Filed: 1937-03-04
Abstract: 485,408. Cables. SIEMENS & HALSKE AKT.-GES. March 4, 1937, No. 6506. Convention date, March 5, 1936. [Class 36] An air-space insulated cable comprises one or more lines each consisting of coaxial inner and outer conductors, each inner conductor is constituted by a number of component conductors assembled as strands in direct contact with one another and of such a cross-section that they fit together to form a smooth surfaced conductor of circular cross-section. The component conductors are preferably stranded together with such a long lay, i.e. a length of lay exceeding fifteen times the diameter of the composite conductor, that interfering longitudinal fields are not produced by highfrequency currents flowing in the component conductors. In the construction shown in Fig. 1, an inner conductor 10 comprising sectorshaped strands 11-14 is insulated from an outer conductor 16, consisting of shaped strips, by a helical spacer 14 and a sleeve 15, both formed of a polyvinyl compound such as polystyrol. The strips of the outer conductor are held by a copper binding 17 over which are applied a wound band 18 of insulating material, a water-tight sheath 19 and a flat wire armouring 20 embedded in jute. The strands of the inner conductor, the strips of the outer conductor and the wires of the armouring are laid up in the same direction. The inner conductor may be formed by stranding together three circular wires and then passing the composite conductor through a shaping device in the manner described in Specification 197,692, [Class 36]. Fig. 2 shows a modified construction wherein the inner conductor 21 consists of a circular sectioned wire 22 surrounded by six profiled wires. The inner and outer conductors are separated by spaced insulating discs 23.
Patent GB-484623-A (GB)
Title: Improvements in or relating to electrolytic decomposers of concentric design
IPC: C25B9/17
Filed: 1937-03-04
Abstract: 484,623. Electrolytic cells. SIEMENS & HALSKE AKT.-GES. March 4, 1937, No. 6507. Convention date, March 5, 1936. [Class 41] A cell comprises double walled cylinders 2, one wall 3 of each of which is perforated and is separated by a diaphragm 4 from a perforated plate 6 ; the solid wall of each cylinder acts as a bipolar electrode. The cylinders 2 are pro vided at the top with openings 7 by which their inner spaces are connected through passages 9 in separators 8 to the central space 1 for the collection of oxygen. Insulating packing 10, 11 is fitted on each side of the members 8. Alternatively, each space may be welded to the adjacent unperforated electrode wall and to the perforated plate 8 which in that case constitutes an auxiliarv electrode surface. Wedges 14 and corrugated separators (not shown) are fitted at other parts of the circumference. The spacers 8 may be provided with hooks 12 resting on the upper part of the adjacent electrodes to maintain the corresponding apertures in correct register. Specification 466,563 is referred to.
Patent GB-1138186-A (GB)
Title: Improvements in and relating to ammunition chutes for automatic guns
Inventor: VICKERS ROY GILBERT
IPC: F41A23/24
Filed: 1965-04-26
Abstract: 1,138,186. Feeding ammunition. BREVETS AERO-MECHANIQUES S.A. 25 Feb., 1966 [26 April, 1965], No. 6515/68. Divided out of 1,138,185. Heading F3C. An ammunition shoot 32 for guiding a linked ammunition belt 38 to an automatic gun 20 is curved substantially in the axial plane of the rounds 35 in the belt 38 and the belt 38 and rounds 35 are guided in the shoot by a plurality of sprockets 36 journalled in the shoot on axes 37 substantially radial to the curve thereof. The teeth of the sprockets fit between adjacent rounds and engage the links between the rounds on the inside of the curve. The ammunition shoot is used with a gun turret 1 as fully described in the parent Specification 1,138,185.
Patent GB-773771-A (GB)
Title: Improvements in or relating to the metal sheathing of solid bodies
Inventor: ALEXANDER WILLIAM OLIVER
IPC: G21C3/10
Filed: 1946-03-01
Abstract: 773,771. Making containers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 19, 1947 [March 1, 1946], No. 6519/46. Classes 83 (2) and 83 (4). [Also in Groups XXV and XL (a)] Riveting ; welding by pressure.-A method of metalsheathing a solid body 1 such as uranium rods or slugs comprises pressing an open metal container 2, e.g. of aluminium, aluminium alloy, stainless steel, about the body and about a rivet 3 backing against the body so that the mouth of the can closes upon the shank 5 of the rivet and spreading said shank to cover and to close the mouth of the container. The container may be cold drawn or pressed on to the body to form a closefitting sheath and a second sheath may be placed in a reverse manner over the first sheath to minimize the escape of fission products. Alternatively, the container may comprise a tube which is cold drawn over the body and closed and sealed at each end by a single rivet. The sheathing may be carried out under normal atmospheric conditions. The rivet 3 has a disc-head 4 the same diameter as the body 1 and either a solid (Fig. 3) or an open-ended shank 5. The end of the container is spun or shaped by press-tools over the rivet head with its edge closely encircling the rivet shank which is then spread over the inturned edge to complete the joint (Fig. 2). The overlapping surfaces of the spread part of the rivet and the container may be spot-welded to seal the joint. One electrode of the spot welding machine is a chuck for gripping the container wall and the other has a domed tip for contacting the annulus formed by the spread rivet. Alternatively, the exposed face of the rivet may be brazed to the adjacent surface of the container. In a modification a rivet with a small head may be used in association with a washer or annulus approximating to the diameter of the solid body or with an inner sheath nesting in the outer sheath. In a further embodiment the body may be inserted in a first sheath the bottom of which has a rivet shank projecting from it, the body and first sheath then being introduced into a second sheath with the bottom of the first sheath at the open end of the second sheath which is spun over and riveted.