baber/WOPTO huggingface dataset:
Patent GB-954056-A (GB)
Title: Improvements in and relating to automatic priming devices for centrifugal pumps
IPC: F04D9/04
Filed: 1960-06-24
Abstract: 954,056. Centrifugal pumps A. TADDEI. June 24, 1960, No. 22154/60. Heading FIC. An automatic priming device for a vertical centrifugal pump comprises a unit in addition thereto and includes a clutch which with the whole of its actuating means is coaxial with the unit and which is automatically disengaged on completion of priming, in accordance with the discharge pressure of the centrifugal pump. A liquid ring pump 1 is connected to the centrifugal pump driving shaft through the clutch 2, 3 which is engaged by a spring 11 while the centrifugal pump is being primed. Part of the outlet liquid of the centrifugal pump is led via a pipe A to a flexible circular ring 10 forming a chamber 9 which acts on an annular member 15 to overcome the spring 11 and disengage the clutch. A tank 12, completely independent of the working liquid of the centrifugal pump contains liquid, which may include lubricant, for the liquid-ring pump 1 and the air or gas withdrawn by this pump from the inlet of the centrifugal pump is exhausted in the direction of the arrows to the pipe C. This air reaches the pump 1 through a pipe B which has a filter 17 and an automatic check valve 13, which prevents liquid being drawn from the tank 12 to the inlet of the centrifugal pump. The clutch may be operated by a hand lever 18. A tap may be provided in the pipe A so that the delivery pressure of the centrifugal pump can be interrupted by putting the chamber 9 in communication with the atmosphere through the tank 12. In an alternative construction, the flexible ring 11 and annular member 15 may be replaced by an annular chamber contained in a piston so that pressurized liquid therein will cause an upward movement of the piston. The priming device may be below the centrifugal pump.
Patent GB-340003-A (GB)
Title: Improvements in or relating to electrically driven vehicles
IPC: B60L7/12
Filed: 1929-07-19
Abstract: 340,003. Guy, S. S., and Stevens, W. A. July 19, 1929. Controllers, locking; systems for continuous current motors only.-A motor 1 of a vehicle is arranged for regenerative braking when the driver removes his foot from the power pedal. In one form the controller drum 22 is arrested in the position of maximum regeneration, viz., with all the armature resistance 4 and field resistance 5 short-circuited, by a polarized member 26 engaging a catch-plate 25 associated with the drum. The member 26 is only withdrawn from the plate 25 when the motor ceases to regenerate. Modifications of this form include a polarized relay, the contacts of which control a single coil operating the member 26; a construction in which the catch is associated with the rod connecting the pedal to the drum; and a construction in which the pedal returns to the " off " position although the drum is retained in the position of maximum regeneration. In the other form, the controller drum returns to the "off" position, but a polarized relay, during the period of regeneration, completes an alternative circuit for the armature so as to avoid the resistance 4, or maintains contactors 16<x>, 16, 16<o> closed. The relay may also shortcircuit the series field winding 2. In either form, a switch may be included in circuit with the relay contacts and be operated by movement of the foot or hand brake or the reversing lever so as to interrupt the regenerative circuits. Specification 330,259, [Class 38 (iii), Electric motor control systems &c.], is referred to.
Patent GB-1192782-A (GB)
Title: Radio Direction Finding
Inventor: MARRIOTT PAUL ALLEN
IPC: G01S3/52
Filed: 1967-05-14
Abstract: 1,192,782. Radio direction-finding. MARRIOTT MAGNETICS Ltd. 14 Aug., 1968 [14 May, 1967], No. 22256/67. Heading H4D. In a radio direction-finder two directional aerials are continuously rotated simultaneously, their outputs are tuned to spaced transmitters, and the relative phase of the outputs, at the modulation frequency arising from the rotation, is determined to give a position-line. The second aerial may be replaced by a rotating magnetic pick-up utilizing the earth's field, a frequency doubler 59 being added. Automatic gain control with a time constant corresponding to many aerial revolutions may be added. The apparatus may be hand-held, Fig. 1 (not shown), an electric motor being incorporated together with a belt drive, Fig. 2 (not shown).
Patent GB-917150-A (GB)
Title: Rubber with a cyclic triene therein
Inventor: MINCKLER LEON SHERWOOD
IPC: C08K5/01
Filed: 1961-06-21
Abstract: The ozone resistance of a rubbery polymer is improved by the addition of a non-aromatic cyclic triene, such as 1,5,9-cyclododecatriene, cycloheptatriene or bicyclooctatriene. Specified rubbery polymers are butyl rubber, halogenated butyl rubber, natural rubber, neoprene and copolymers of butadiene with styrene or acrylonitrile.  The cyclic triene may be added before or after curing, which may be effected with ingredients selected from sulphur, paraquinone dioxime, dibenzoate, benzothiazyl disulphide, zinc oxide, stearic acid and tetramethyl thiuram disulphide.  The products find application as tyre casings, rubber bands and tubing.  Specification 565,974 is referred to.
Patent GB-1420245-A (GB)
Title: Process for the high-pressure polymerization of ethylene
IPC: B01J19/24
Filed: 1973-05-10
Abstract: 1420245 Polymerizing ethylene SUMITOMO CHEMICAL CO Ltd 10 May 1973 22437/73 Heading C3P Ethylene is polymerized by a process which comprises feeding compressed ethylene, optionally with one or more comonomers, into an autoclave reactor, polymerizing the ethylene or monomer mixture therein in the presence of a catalyst, transferring the reaction mixture from the autoclave reactor to a tubular reactor via a heat exchanger where the reaction mixture is cooled, and continuing the polymerization therein in the presence of further catalyst. Temperature control may be effected in the autoclave reactor by means of cold monomer feed and in the tubular reactor by external cooling. The catalysts may be oxygen, organic peroxides and/or azo compounds, oxines or azines; and catalyst may be introduced at a plurality of points along the tubular reactor. The reaction mixture may be subjected to pulsed flow to prevent blockage of the tubular reactor. The comonomers may be acrylic and methacrylic esters and amides, vinyl esters, ethers and ketones, diethyl maleate or fumarate, maleic anhydride and styrene. Apparatus suitable for carrying out the process of the invention is described and illustrated and examples describe the polymerization of ethylene in an autoclave reactor in the presence of di-t-butyl peroxide followed by further polymerization in (1) one and (2) two successive tubular reactors in the presence of di-t-butyl peroxide and t-butyl perbenzoate.
Patent GB-475297-A (GB)
Title: Improvements in and relating to rotary blowers, compressors, pumps, engines and the like
IPC: F04C14/14
Filed: 1936-08-17
Abstract: 475,297. Regulating. POMEROY, L. E. W., and McEVOY, M. A. Aug. 17, 1936, Nos. 22577/36, 23935/36, and 22465/37. [Class 7 (vi)] [Also in Group XXVI] In a rotary compressor, a sleeve valve 18 has a port P on the inlet side 20 of the compressor and may also have a port in a similar position on the delivery side 21. The capacity of the working chamber is varied by rotation of the sleeve, either by hand or automatically by means of an accelerator pedal, a governor on an internal - combustion engine being supplied with air by the compressor, or by the variation in pressure in the intake manifold. The inlet and delivery ports may be axially displaced so that movement of the sleeve 18 controlling one part may not affect the other. Fig. 11 shows an arrangement in which the sleeve 18 is controlled by an accelerator pedal 30 through various rods and a crank 39 and gear-wheel 40 which gears with a toothed flange 41 until a predetermined pressure is reached. A throttle valve 43 is set by the pedal 30 through rods 42, 44, 45. The sleeve is also controlled by the pressure in the intake manifold 32 which is connected by a pipe 46 to a pressure chamber 47 containing a pressure element 53. The latter is set by the pedal 30 through the medium of shaft 33, crank 48, rods 49, 50, and a cam 51 acting on a spindle 52 from the element 53. The opposite end of 53 actuates a slide valve 54 controlling the connection of passages 55, 56, with the opposite sides of a piston 57 in a cylinder 58. An oilpressure supply enters a port 59. The piston 57 has its rod 60 connected to rods 36, 35, and is also coupled to a governor 31 by means of rods 37, 62. On Diesel engines, the sleeve 18 may be rotated by rods which actuate a gearwheel meshing with a toothed flange on the sleeve, and a separate rod may control the fuel injector. The point of injection may be retarded when the manifold pressure is raised. Separate axially-displaced sleeves 18 may control inlet and outlet ports on the compressor. The compressor may deliver more air than the engine cylinders need and thus tend to drive the engine. In a modified compressor, the cover plate 25 is extended axially to form a bearing for the tube 14. Lubricant is supplied to an annular channel around the centre of this bearing, which is in communication with a conduit inside the shaft 1.
Patent GB-320977-A (GB)
Title: Improved means for enabling the landing or despatching of aeroplanes to be effected where sufficient open ground is not available
IPC: B64F1/36
Filed: 1928-08-07
Abstract: 320,977. Holland, L. Aug. 7, 1928. Landing places and launching ways; hoisting or slinging arrangements for aircraft; indicators, applications of. - Apparatus for enabling aeroplanes to land or be despatched where open space is limited comprises a mast 1 at or near the upper end of which is pivoted an arm 2 capable of revolving round the mast axis and carrying at its outer end means which may be engaged with and released from the aeroplane. The arm 2 may be positively rotated, a free-wheel connection or clutch being provided to permit the arm 2 to rotate freely when an aeroplane is being landed. The arm 2 is counterbalanced to move it towards its upper limiting position, which approaches the horizontal, the counterbalance being capable of adjustment in accordance with the weight or estimated weight of the aeroplane. A wheel 8 or the like at the outer end of the arm 2 runs, in the lower limiting position of the arm, on a circular track 60 supported on the mast at a convenient height above the ground and which supports also a control platform 62. A vane 64 is provided on the arm 2 to bring it into the direction of the wind. The arm 2 may be fiexibly constructed in the direction of flight of the plane, as by the provision of knuckle joints under spring control, to take up the shock on landing, and paying out gear under spring control or under control of a winch through a cable and a system of pulleys, and to which the means for engagement with the aeroplane is attached, may also be provided. The shock absorbing springs on the landing wheels may also be used to take up the shock of landing. The arm 2 may be telescopically constructed to permit paying out during landing or launching, or this may be otherwise done, e.g. by a cable. The aeroplane may carry a horn 5 capable of being projected in any desired direction by the pilot and which is guided into a flexible loop 3 at the outer end of the arm 2 and which may be illuminated at night. The loop 3 runs along the horn 5, when an aeroplane is attaching itself to the arm 2 on being landed, into a recessed portion 47 of a hook 4 and is retained therein by a spring 46. A scale 75 may be provided on the aeroplane to indicate the pull between the arm 2 and the aeroplane to indicate the appropriate time at which the catch 46 may be released to launch the aeroplane.
Patent GB-828415-A (GB)
Title: Paper tube form for pouring concrete columns
IPC: E04G13/02
Filed: 1958-07-16
Abstract: 828,415. Paper tubes. SONOCO PRODUCTS CO. July 16, 1958 [May 20, 1958], No. 22874/58. Class 99(2). In a wound, multiply, paper tube for moulding concrete columns the innermost ply liner 10 consists of water permeable paper of a porous nature and treated with a suitable chemical, which permits uniform penetration therethrough of water from wet concrete with consequent uniform wetting of the other plies of the tube in order that the tube may be stripped easily from the concrete column after hardening thereof, and providing a smooth uniform surface on the poured concrete column free of paper from the paper plies, the liner having a sufficiently high wet strength to avoid disintegration of the liner and to permit the latter and the remaining plies to be stripped substantially intact from the column. As shown, the plies are convolutely or helically wound strips having abutting or overlapping deckled edges, and the liner is coated with, for example, resin such as melamine resin or urea formaldehyde resin catalyzed with alum. A water barrier 12 of parchment paper, non-moisture proof "Cellophane" (Registered Trade Mark), glassine, grease-proof paper or paper coated with starch or polyvinyl alcohol retains water permeating the liner until the concrete has initially set. The outermost ply 17 is coated with wax or other water-resistant material to protect the tube against weather conditions and to prevent the concrete from drying out too fast. Specification 751,490 is referred to.
Patent GB-714226-A (GB)
Title: Improvements in the production of hydroxylamine
IPC: C01B21/14
Filed: 1952-09-12
Abstract: Hydroxylamine is prepared by catalytic reduction of nitric oxide with hydrogen in an acid medium in the presence of an organic compound containing a polar group and having 4 to 10 carbon atoms in the molecule, such as aliphatic or hydroaromatic alcohols, acids, ketones or oximes.  Organic compounds specified which may be added in amounts of 0.2 to 1 gram per litre of reaction liquid, are amyl alcohol, isovaleric acid, hexahydro-benzoic acid, dioxane, cyclohexanone oxime and cyclohexanol.  Specification 667,870 is referred to.
Patent GB-385902-A (GB)
Title: Improvements in door fastenings
IPC: E05C17/36
Filed: 1932-08-16
Abstract: 385,902. Door fastenings. REINER, T., 7, Klenzestrasse, Munich, Germany. Aug. 16, 1932, No. 22936. [Class 44.] To permit limited opening of a door, the sliding bolt 3 of a lock when in its half-shot position engages with a keeper 8 which is movable away from the door post 6 against a spring 11. In its fully shot position the bolt engages with a fixed keeper 7. A bolt 20 which engages with a fixed keeper 21 may be provided and may be withdrawn independently of the operation of the bolt 3 when the latter is half-shot. When the bolt 3 is fully retracted, the bolt 20 is withdrawn by means of a projection 25 which engages one end of a recess 26. The bolt 3 may be held fully shot by a lug 29 on a sliding tumbler 5 engaging a notch 31 and in this position engages with the projection 25 on the bolt 20 to prevent withdrawal. The movable keeper 8 may be mounted on a rod sliding in a bore in the door post or on a chain 9 housed in a casing 10, a pin 16 limiting its outward movement.
Patent GB-829098-A (GB)
Title: Polymerisation of ethylene
Inventor: HUTCHINSON HENRY MALCOLM
IPC: C08F4/46
Filed: 1955-08-10
Abstract: A catalyst for polymerizing ethylene is formed by mixing a titanium halide with an organometallic compound obtained by replacing a hydrogen atom of a non-cyclic aliphatic or an aromatic hydrocarbon with lithium or sodium; specified compounds being sodium and lithium butyls, phenyls and benzyls, while the halide may be TiCl4, TiCl3 or TiCl2.  Optionally the organometallic compound may be formed in situ and in a diluent by reaction of sodium or lithium and an alkyl or aryl halide, e.g. chlorobenzene.  Specification 827,464 is referred to.ALSO:Ethylene is polymerized by contacting with a catalyst formed by mixing a titanium halide with an organometallic compound obtained by replacing a hydrogen atom of a non-cyclic aliphatic or an aromatic hydrocarbon with lithium or sodium; specified compounds being sodium and lithium butyls, phenyls and benzyls.  The halide may be TiCl4, TiCl2 or TiCl3, e.g. as prepared in Specification 827,464.  If desired, the catalyst may be formed in the presence of ethylene and optionally the organometallic component may be formed in situ in a diluent by reaction of sodium or lithium and an alkyl or aryl halide (e.g. chlorobenzene). Hydrocarbon and halogenated hydrocarbon diluents are preferably present and the polymerization may be either batchwise or continuous.  The addition of ethylene or diluent during the reaction is described.  In Example 5 the ethylene is purified before use.  Methanol, ethanol, water, conc.  HCl and methanolic hydrochloric acid are used in the purification treatments described. The polymers are linear and may be formed into films and fibres.
Patent GB-1416468-A (GB)
Title: Pulse operated surface motor
IPC: H02K41/03
Filed: 1973-05-15
Abstract: 1416468 Linear motors FUJITSU Ltd and FUJITSU FANUC Ltd 15 May 1973 [25 May 1972] 23030/73 Heading H2A In a pulse operated surface motor in which a slider is movable in two mutually orthogonal directions over the surface of a stationary member 52, the stationary member is formed of magnetic material and has high reluctance zones 51 spaced apart in the two directions of travel so that teeth 53 are formed by the magnetic material between adjacent zones 51 in the two directions of travel. The zones 51 may be cavities or through holes and may be enlarged, Fig. 7 (not shown), so that the teeth 53 are are rectangular rather than square. The pitch of the teeth 53 may be different in the two directions of travel.
Patent GB-1467753-A (GB)
Title: Film duplicator
IPC: G03B27/06
Filed: 1975-05-23
Abstract: 1467753 Contact printing QUANTOR CORP 23 May 1975 [29 Aug 1974] 23058/75 Heading G2A A photo-copier comprises a holder for a master film at a contact printing station, and means for repeatedly advancing the copy film from a supply reel to the printing station in a length equal to that of the master.. As shown, copy film from a reel 14 is advanced between driven rollers 56 to the printing station, which comprises an upper platen 30 which has a rubber pad 42 in a recess and may be lifted to allow advance of copy film, a lower platen 32 which has a transparent glass plate, has a peripheral vacuum groove 38 for holding a master micro-fiche, and may be moved sideways on tracks 34, air nozzles 62 to provide an air bearing for the advancing copy film, a xenon lamp 68 surrounded by a tube containing electrically conductive liquid capable of absorbing infrared radiation, a funnel-shaped reflector 70, and a rotary cutter which comprises a pair of blades 74 which co-operate with a cutting edge 82 at the side of upper platen 30. The exposed and cut film passes a heat developer (20), Fig. 1 (not shown), cooling drum (22) or air-cooled chamber, and heat fixer  (24). The fixer has a lamp similar to that at the printing station, the two lamps being fired alternately.
Patent GB-984765-A (GB)
Title: Power plant
IPC: F22G5/18
Filed: 1961-06-26
Abstract: 984,765. Steam turbine power plant. RILEY STOKER CORPORATION. June 26, 1961 [June 27, 1960], No. 23065/61. Drawings to Specification. Heading F1T. [Also in Division F4] A power plant, capable of peak load operation on occasion, comprises a steam generating unit having a superheater and a reheater, the superheater consisting of a low temperature section and a high temperature section in series, a steam turbine including a high pressure section and a low pressure section having a substantially greater capacity than the high pressure section by an amount determined by the peak load, a by-pass pipe extending from the outlet of the low temperature section of the superheater to the entrance of the reheater and a valve located in the by-pass to permit the passage of dry steam from the low temperature section to pass through the by-pass pipe equal in amount to the excess steam capacity of the low pressure turbine. The valve may be pressure regulated.
Patent GB-1604577-A (GB)
Title: Coded printing element and apparatus for use thereof
IPC: B41J9/48
Filed: 1978-05-26
Abstract: The printing mechanism comprises a printing element having a number of types and a coded region (26) in order to identify the design and the orientation of the printing element. A sensor scans the coding, and the output of the sensor is used to control the spacing between the characters and the force of the hammer with which the hammer strikes against the types. The printing element is constructed as a daisywheel, the individual types being held at the end of a multiplicity of radially extending spokes, thus resulting in a substantially circular arrangement. The coded region (26), which identifies the printing element (10) and its alignment, is arranged with spacing from the circular type arrangement in a substantially curved manner which lies concentrically to the circular arrangement of the types. In the printing mechanism comprising such a printing element, both the spacing between the individual characters and the striking force of the hammer are adjusted automatically in accordance with the printing element used in each case. <IMAGE>
Patent GB-342317-A (GB)
Title: Improvements relating to intaglio printing
IPC: B41F9/10
Filed: 1929-07-27
Abstract: 342,317. Printing-machines. MELDRUM, T. S., Kennoway, Kentish Lane, Brookman's Park, Hertfordshire, and LEWIS, F. C., 44, Coram Street, London. July 27, 1929, No. 23157. [Class 100 (ii).] Inking-apparatus.- In an intaglio printing-machine, the carrier for the doctor blade is mounted in bearings movable while the machine is running to vary the angularity of the blade, the movement of the bearings in one direction being effected positively against the action of an opposing force. In one form, the blade f is carried by a spindle a mounted on bearings in a pair of plates c angularly adjustable about trunnions d by means of a screw i and an opposed spring h<1>. The plates are clamped after adjustment by studs g engaging quadrant slots c<1>. Consequential angular adjustment of the spindle a in its bearings may be effected by any suitable means. In another form, sliding members are employed instead of angularly adjustable plates c.
Patent GB-442676-A (GB)
Title: Improvements relating to the fixing of lavatory basins and the like
IPC: E03C1/32
Filed: 1934-08-10
Abstract: 442,676. Brackets. PURVEY, F. T., 18, Wandle Side, Croydon. Aug. 10, 1934, No. 23169. [Class 52 (v)] [See also Group I] A bracket for fixing lavatory-basins &c. to walls &c. comprises a plate 1 for securement to a wall, a hollow guide 2 fixed thereto, which is slotted on its lower surface throughout its length and is also slotted on its upper surface at 6, and a ring 3 adapted to be passed over the stem of a tap and carried by a shank 4 slidable within the guide and secured where desired by a screw 7 and a nut. The ring is preferably secured about the stem by a grub-screw 11.
Patent GB-335672-A (GB)
Title: Improvements relating to apparatus for cleaning, fumigating, disinfecting and insecticide purposes
IPC: A01M13/00
Filed: 1929-07-27
Abstract: 335,672. Arnold, C., (Air-Way Electric Appliance Corporation). July 27, 1929. Grant of Patent opposed. Powder blowers.- An attachment for a portable vacuum cleaner comprises a container 10, attached to the air intake or discharge connection 11, and means for feeding cleaning, disinfecting or other material, in powdered form, into the air blast, for conveyance to articles' to be treated. The material may be in powder, granular or crystalline form and may vaporize in air. A trigger 32 feeds the powder by rotating a fluted cone 20 mounted on a hollow spindle 17, rotatably journaled in a bearing 15 and bracket 16. By means of a handle 23 and cam 22, movable on a fixed cam 24, the spindle is adjusted longitudinally to vary the annular space between the cone and a partition 12. Air can enter through the spindle and is regulated by a butterfly valve 11<b>. Specification 139,892, [Class 8 (i), Air and gases, Compressing &c.], is referred to.