baber/WOPTO huggingface dataset:
Patent GB-1355403-A (GB)
Title: Heat-stable polymers based on bis-imides and oligomeric amines
IPC: C08L79/08
Filed: 1971-10-22
Abstract: 1355403 Glass fibre laminates RHONEPOULENC SA 22 Oct 1971 [23 Oct 1970 24 June 1971] 49314/71 Heading B5N [Also in Division C3] A 3-dimensional polyimide for use as an impregnant in laminating is obtained by reacting at 50 to 350‹ C. (a) an unsaturated bis-imide where D is an unsaturated divalent radical and A is a C 2-30  divalent radical, with (b) a polyamine where x is 0À1 to 2 and R is a C 1-8  divalent hydrocarbon radical derived from an aldehyde or ketone R = O, (a) provides 1À1 to 50 imide groups per -NH 2  of (b). An anhydride of an aromatic tri- or tetra-carboxylic acid may be an additional reactant. Polycyclic aromatic compounds may be incorporated with the polymers as in Specification 1,260,819. The polymers may be prepared in 2 stages, a pre-polymer first being produced at 50 to 250‹ C., and then cured at up to 350‹ C., e.g. in the presence of lauroyl or cumyl peroxide, azobisisobutyronitrile or diazabicyclooctane.  Example 3 illustrates the preparation of a 12-ply glass satin fabric laminate by applying heat and pressure. Reference is made to Specifications 1,355,404, 1,355,401, 1,280,847, 1,280,846, 1,190,718 and 1,137,592.
Patent GB-1170784-A (GB)
Title: Transportation of Raw Sugar in a Ship
IPC: B63B25/04
Filed: 1966-11-07
Abstract: 1,170,784. Loading and unloading ships. TSENTRALNOE PROEKTNO-KONSTRUKTORSKOE BJURO No. 4. 7 Nov., 1966 [5 Nov., 1965; 18 Jan., 1966], No. 49773/66. Heading B8E. [Also in Division B7] An oil tanker is converted for the carrying of bulk material such as sugar by the provision of a tarpaulin flooring 3 in the centre tanks 1. Pipes 8 comprising sections 11 joined at flanges 12 are provided supported by members 9 above the flooring 3 and having closure caps 10. Loading is effected by conveyers through throats 5 and is assisted by vibrators 13 which prevent caking of the sugar. During transport the outer tanks are filled with water, the throats 5 are closed and the tanks 1 pressurized so that the temperature and humidity of the cargo can be controlled. The cargo can be ventilated when the conditions of the external air is suitable by removing the caps 10 and operating the vibrators 13. Unloading is effected by inserting suction hoses into the tubes 8 while operating the vibrators 13.
Patent GB-1362292-A (GB)
Title: Rock drills
IPC: E21B10/44
Filed: 1971-10-27
Abstract: 1362292 Twist drills H REINHOLDT AS 27 Oct 1971 [25 Nov 1970] 49889/71 Heading B3C [Also in Division B4] A rotary-percussive drill comprises a shank 2, a hard metal cutting element 6 and a pair of helical discharge grooves 8, 9 cut from a previously cylindrical portion 4. The surfaces 10, 11, which guide the drill in use, widen, adjacent the cutting element, to substantially a quarter of the circumference of the previously cylindrical portion. The core of the drill enveloped by the grooves is preferably a cylinder having a diameter greater than half the diameter of the previously cylindrical portion. The grooves may alternatively have the form illustrated in Fig. 3.
Patent GB-1440107-A (GB)
Title: Liquid level control valve
IPC: F16K31/34
Filed: 1973-10-26
Abstract: 1440107 Fluid-pressure servomotor system K FUJIWARA 26 Oct 1973 [20 Dec 1972] 50006/73 Heading G3P A liquid level control valve comprises a main valve member 25 controlling fluid-flow from an inlet 4, through orifices 16, 18 to an outlet (not shown) in a tank, the valve member being part of a piston 20 having a pressure chamber 23 above it, a first orifice 30 which admits inlet fluid to the chamber, and a second orifice 32 which communicates the pressure chamber with a float chamber 6 of the tank and is controlled by a pilot valve 33 which co-operates with the float 7. In operation, when the tank is filled to the required level the float closes the pilot valve 33. The pressure chamber 23 is then subject to fluidpressure increase due to inlet fluid, and the piston 20 is urged downwardly closing the main valve 25. When the liquid level falls, the pilot valve opens, and the pressure in pressure chamber 23 decreases since the orifice 32 is of larger cross-section than orifice 30. The piston 20 is urged upwardly by the inlet fluid acting on the base of the piston. A restoring spring 35 urging the piston downwardly may be dispensed with if the pressure of the liquid source is sufficiently high that a downward impact force is created on a flange 29.
Patent GB-1282327-A (GB)
Title: Improvements in methods of sharpening twist drills for drilling metals and alloys
IPC: B23B51/02
Filed: 1969-10-13
Abstract: 1282327 Grinding drills; drills REGIE NATIONALE DES USINES RENAULT 13 Got 1969 [18 Oct 1968] 50132/69 Headings B3C and B3D A method of sharpening a twist drill having a point comprising at least two symmetrical lips 3, 3<SP>1</SP> each formed with a cutting edge is characterized in that the drill is ground to impart a pyramidal configuration thereto, the vertex of the pyramid being centred automatically to the twist drill axis. Each lip is ground with three planes 4, 5, 6 and 4<SP>1</SP>, 5<SP>1</SP>, 61 so as to form a point 1 on the drill. Planes 4, 4<SP>1</SP> provide a negative rake to the lips 3, 3<SP>1</SP>, planes 5, 5<SP>1</SP> provide relieffor the lips, and planes 6, 6<SP>1</SP> are ground in the region of the web; planes 5, 6 and 5<SP>1</SP>, 6<SP>1</SP> intersect the planes 4, 4<SP>1</SP> along common lines 7 on a diameter of the drill, and planes 6, 4<SP>1</SP> and 6<SP>1</SP>, 4 intersect to form chisel edges 8, 8<SP>1</SP> which intersect the line 7 at the point 1. In apparatus for carrying out the method, the drill 2, Fig. 3, is mounted in a carrier 13 adjustable about a pivot 15 on an E-shaped support 12 rockable about an axis B, B<SP>1</SP> on a bed 14. The axis B, B<SP>1</SP> passes through the operative surface 11 of a cup-shaped grindlng wheei which may be dressed by a diamond 17. A stop 16 is provided for angularly adjusting the drill to predetermined angular positions for grinding the plane surfaces on the drill. In an alternative embodiment, the planes are ground on the drill by three grinding wheels 18, 19, 20 adjustable to predetermined angular positions.
Patent GB-1010673-A (GB)
IPC: H01H33/56
Filed: 1963-12-19
Abstract: 1,010,673. Gas blast switches. BROWN, BOVERIE & CO. Ltd. Dec. 19,1963 [Dec. 21, 1962; Feb. 9, 1963], No. 60141/63. Heading H2B. [Also in Division F2] Axial misalignment between the stationary member and the movable closure member of the blast valve of a gas blast circuit-breaker is accommodated by two superimposed sealing discs, one 8 of hard material, e.g. glas fibre reinforced polytetrafluoroethylene, making contact with the movable cylindrical closure member 8 and the other 9 of softer material, e.g. silicone rubber, contacting the stationary member 1 within flange 1a Contact between stationary nozzle-shaped arcing contacts 1 and 2 is made by a plurality of contacting fingers 4, under the force of annular springs 5, carried by the movable spring 7 seated closure 3 which forms a piston within stationary cylinder 6. The valve is opened and contact broken by the creation of a vacuum within the space 12 and the pressure of compressed air in the surrounding chamber 13 which simultaneously flows into the interior to quench the arc. The soft seal may be of V-section, or as shown in Fig. 3, whereby the sealing forces are reinforced by fluid pressure. The sealing discs are retained in position by a retaining washer 10 located by a spring ring 11.
Patent GB-1536509-A (GB)
Title: Automatic couplings for railway rolling stock
IPC: B61G3/10
Filed: 1976-12-02
Abstract: 1536509 Automatic railway couplings SOC DES ACIERIES DE PARIS ET D'OUTREAU 2 Dec 1976 [4 Dec 1975] 50225/76 Heading B7T An automatic railway coupling comprises a first body portion 1 able functionally to serve in establishing hitching operation of the coupling, and a second body portion 3 joined at a junction zone 4 to said first body portion and able functionally to serve in connecting conduits or lines, such as for hydraulic or electrical supplies, between adjacent vehicles, vertical external side walls 1a, 1b of the first body portion and vertical external side walls (3a, 3b), Fig. 3 (not shown), of the second body portion at the junction zone 4 each being inclined to the axis XY of a shank 2 of the coupling at an angle of about 28 degrees. As illustrated, a re-entrant reinforcing formation 1c is formed in the first body portion.
Patent GB-1199217-A (GB)
Title: Improvements in or relating to Valves for Controlling Fluid Flow
Inventor: HORN JOHN MICHAEL
IPC: F16K1/38
Filed: 1968-10-23
Abstract: 1,199,217. Valves. ALLIS-CHALMERS MFG. CO. 23 Oct., 1968 [23 Oct., 1967], No. 50251/66. Heading F2V. A valve used to pass controlled amounts of water for power requirements, flood control, irrigation or to drain reservoirs or ponds has a cone 9 rigidly connected to the valve casing 5 by ribs 13 extending only partially across the valve cone and unconnected with each other. The ribs may be of arcuate or triangular crosssection and be welded to the interior or exterior surface of the casing. The closure member consists of a sleeve 14 adjusted by threaded rods 14, gears 18 and worm gears 19.
Patent GB-1040130-A (GB)
Title: Improvements in or relating to ball bearing declutchers for friction clutches
IPC: F16D23/12
Filed: 1964-12-11
Abstract: 1,040,130. Controlling clutches. FICHTEL & SACHS A.G. Dec. 11, 1964 [Dec. 14, 1963], No. 50482/64. Heading F2L. A clutch release sealed ball bearing comprises a non-rotatable outer race 2 fixed to a sleeve 3 axially slidable on a light metal or plastics guide tube 5 coaxial with the clutch, and a rotatable inner race 1 having an integral extension 11 directly engageable with a radial clutch release lever 7 or a diaphragm spring. The forked end of an actuating lever 9 engages a hardened end face 10 of the outer race 2 to move the bearing leftward for declutching. In Fig. 3 (not shown) the inner race engages the tongues of a diaphragm clutch spring, and the forked end of the lever 9 has pins engaging an annular slot in the outer face 2. In Figs. 5 and 6 (not shown) the forked ends of a pressed sheet metal actuating lever are held against the face 10 of the outer race by laminated springs mounted on the latter.
Patent GB-1469759-A (GB)
Title: Toroid matrices
IPC: G11C5/05
Filed: 1974-05-03
Abstract: 1469759 Magnetic storage arrangements PLESSEY CO Ltd 3 May 1974 50857/74 Divided out of 1469758 Heading H3B The description is identical to that of Specification 1,469,758, but the claims relate to the combination of a toroid carrier and a conductor carrier.
Patent GB-1209166-A (GB)
Title: Circular band brake for a rotating drum
Inventor: BRUSSELLE ANDRE
IPC: F16D49/08
Filed: 1967-11-09
Abstract: 1,209,166. Winch brakes. A. BRUSSELLE. 9 Nov., 1967 [17 Nov., 1966], No. 50990/67. Heading B8B. [Also in Division F2] A band brake for a rotating drum comprises a circular band 6 around a rim 5 of the drum, tension on the band 6 being applied by a mechanism coupled between the beginning of the band and a single point on the frame 1 supporting the drum axle 2, the coupling to the single point including a force transmitting device 14. It is shown that the coupling of the tensioning device to the beginning of the band gives a braking force which varies little with changes in the coefficient of friction between the band and the drum. The invention is applicable to a trawl-handling windlass for a fishing vessel, an hydraulic monitoring device in the wheel house responsive to the force on device 14, indicating fouling of the trawl and enabling the brake to be released by remote control. The beginning of the band 6 is pivoted at 16 to a rocking lever 17, pivoted at 18 to a shoe 10 having a friction surface 11. The shoe 10 is pivoted at 9 to a rod 8 attached via slack-adjusting nuts 30, 31 to the end of the band 6. The setting of the rocking lever 17 relative to the shoe 10 is determined by compressed air acting between a piston 24 and cylinder 27. Hand operation is also possible by means of a hand wheel 23 attached to a nut 22 engaging the screwed end of a rod 19, return springs 26 are provided. Regulating screws 28 and support 29 ensure there is no friction between the band 6 and the rim 5 when the brake is released.
Patent GB-1165884-A (GB)
Title: Improvements relating to Centrifugal Pumps
Inventor: FOWLER BRIAN JOHN
IPC: F04D9/02
Filed: 1965-12-03
Abstract: 1,165,884. Centrifugal pumps. NEWAGE LYON Ltd. Nov. 7, 1966 [Dec. 3, 1965], No.51489/65. Heading F1C. In a self-priming centrifugal pump a portion of the liquid discharged therefrom is trapped in a priming chamber 13, Fig. 1, for subsequent, flow through perforations or slots 31 and tubes 30, 32 to a seal chamber 17 for cooling the shaft seal 18. Thereafter the liquid returns through an annular gap 35 to the entrainment region of backwardly-curved impeller vanes 40 to provide the self-priming characteristic. The gap 35 is formed between the impeller hub 21 and a stationary wear plate 24 arranged opposite a similar wear plate 23. In a modification, Fig. 2 (not shown), the impeller has a back plate with arcuate slots (44) therethrough for the return flow.
Patent GB-1344631-A (GB)
Title: Apparatus for transferring articles of hosiery or other articles of apparel
IPC: D06C5/00
Filed: 1971-11-05
Abstract: 1344631 Treating hosiery; finishing hosiery BURLINGTON INDUSTRIES INC 5 Nov 1971 [16 Nov 1970 6 Oct 1971] 51571/71 Headings D1L and D1S Apparatus for the continuous treatment of hosiery comprises a horizontally disposed support 10 [Figs. 2 and 3] for carrying a plurality. of vertical boarding forms 12, driving means, suitably of the Geneva gear-type, for rotating the support 10 on shaft 118 around a central axis 16 in incremental steps, a treatment housing 14 in which the hosiery 36 supported on the forms are treated to, for example, a drying or steaming operation, gripper means 20 for removing the treated hose from the boarding forms, and a transferring device 22 having a foraminous portion 38 on its receiving surface connected to a pneumatic system for applying a pressure differential across the surface and means for pivoting the device 22 from a vertical to a horizontal position so that in operation the treated hose is taken from the gripper means 22 with the device 22 in its vertical position and. is transferred onto a collecting surface [not shown] by pivoting the device to its horizontal position and reducing the pressure differential across the face of the foraminous portion of the device. As illustrated the gripper means 20 may comprise an inclined guide arm 26, a carriage 28 provided with rollers 30 on its top, bottom and sides and a pair of gripping members 34 for engaging a foot portion of the hose 36 and to remove the hose from the form 12 as the carriage 28 is caused to travel up the inclined arm 26 by reciprocating actuating rod 32. The gripper members 34 are automatically controlled by pneumatic means [Fig. 5, not shown] to release the hose when the carriage 28 is adjacent the transferring device 22 at the uppermost portion of the inclined arm 26. The transferring device 22 includes a hose-shaped hollow arm member 60 [Fig. 6] provided with a foraminous surface 38, means comprising an arm 86, rod 90 and spring 92 for pivoting the arm 60 on bearings 80 about an axis 42 and a conduit 70 connected to a suction fan 40 [see Figs. 2 and 3] for creating a partial vacuum in the hollow arm member. Baffle plate 62, ports 64 with covers 66 and flapper valve 74 are also provided for controlling the pressure differential across the surface 38. In operation the arm 60 receives hose released from the gripper means 20 in its vertical position with flapper valve 74 closed. The arm 60 is then pivoted to its horizontal position over the collecting surface, flapper valve 74 is opened and the hose is released onto the surface, the arm then returning to its start position. Shield 75 may be provided to prevent hose being drawn into the conduit 70 when valve 74 is open. Figs. 10 and 11 (not shown) illustrate the driving and turning mechanism of the apparatus which is arranged so that all movements are automatically synchronized.
Patent GB-1020146-A (GB)
Title: The oxidation of sulfur dyes
IPC: D06P1/22
Filed: 1964-12-18
Abstract: Sulphur dyes are oxidized on the fibre with an aqueous solution having a pH of 5-9 containing hydrogen peroxide, e.g. 0.1-0.5% by weight, and a water-soluble salt of Mg, Ca, Sr or Ba, e.g. at least 0.5%, which salt is compatible with hydrogen peroxide. Suitable salts are the acetates, chlorides and nitrates of any of the metals and MgSO4.  The pH of the solutions may be adjusted by the addition of alkali, e.g. alkali metal or ammonium hydroxides.  The oxidation may be carried out in a continuous manner and at 60-140 DEG F. or even at 170 DEG F.  Examples are given of oxidizing cotton fabric impregnated with a solution of reduced Sulphur Black 1.
Patent GB-1536919-A (GB)
Title: Seed treatment
IPC: A01G7/04
Filed: 1976-12-14
Abstract: 1536919 Magnetic treatment of seeds and sugar cane stalks BIOMAGNETIC INTERNATIONAL INC 14 Dec 1976 [15 Dec 1975] 52019/76 Headings A1E and A2Q Seeds and sugar cane stalks are tumbled in a drum in a unipolar magnetic field. The magnet 48 may be placed so that either the north or south pole is uppermost.
Patent GB-1453755-A (GB)
Title: Method of synthesis of refractory metal chromites
IPC: C01G37/00
Filed: 1974-12-03
Abstract: 1453755 Refractory metal chromites FIZ INST IM P N LEBEDEVA AKAD NAUK SSSR and INST VYSOKIKH TEMPERATUR AKAD NAUK SSSR 3 Dec 1974 52281/74 Heading C1A Refractory metal chromites are synthesized by melting under the action of a high frequency electric field a mix of the metal oxide together with chromium oxide and an electrically conductive material having an electric resistivity of no more than 10 ohm. cm. at 20‹ C. used in an amount of at-least 0À05% by weight. The electrically conductive material may be chromium, yttrium or chromites identical in composition to the chromite being prepared. In a preferred method chromium oxide is melted together with an oxide of at least one of the metals from scandium, yttrium and the rare earths, and an oxide of at least one alkaline earth metal. Examples are given with the following metal oxide mixtures, chromium oxide being present in all cases (i) lanthanum; (ii) calcium; (iii) neodymium and gadolinium; (iv) calcium and strontium; (v) yttrium; (vi) scandium; (vii) lanthanum and calcium; (viii) samarium, yttrium and strontium; (ix) lanthanum, calcium, barium and strontium; (x) magnesium. Other metals disclosed but not exemplified are iron and titanium.
Patent GB-1167540-A (GB)
Title: Method for Casting in an Ingot Mould
IPC: B22D7/00
Filed: 1966-11-28
Abstract: 1,167,540. Casting ingots. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. 28 Nov., 1966 [2 Dec., 1965; 10 March, 1966], No. 53119/66. Heading B3F. To obviate a slabbing process, a slab is bottom cast directly in a mould and has a width at least four times its thickness. The ladle pressure is no more than atmospheric. The mould is of pig iron or copper, liquid-cooled and lined with graphite or refractory. It may be disposed with its largest surfaces vertical or slightly inclined and its largest edges horizontal or slightly inclined. There may be a reducing atmosphere, or a partial vacuum for degassing, above the metal in the mould. An upper wall of the mould may be permeable, at the entry of a suction conduit, for degassing. A number of moulds may be connected radially to a single feed.
Patent GB-1453543-A (GB)
Title: Powder cloud developer apparatus
IPC: G03G15/08
Filed: 1974-12-09
Abstract: 1453543 Devleoping electrostatic images XONICS Inc 9 Dec 1974 53155/74 Heading G2H An electrostatic latent image on member 13 is developed by toner particles attracted through the apertures in mesh electrode 15 from a cloud between the apertured electrode 15 and opposed electrode 37, according to the electric fields between the conductive backing plate 11 of member 13 and the apertured electrode on one hand and the apertured electrode and opposed electrode on the other. The field between the apertured electrode and backing plate 11 may be varied as a function of time during development, and so may the distance from the apertured electrode to member 13, one function increasing as the other is decreased. The control of contrast so obtained is stated to be usable in xeroradiography.
Patent GB-1314930-A (GB)
Title: Vehicle wheel suspension assemblies
IPC: B60G15/06
Filed: 1971-11-18
Abstract: 1314930 Vehicle suspensions BAYERISCHE MOTOREN WERKE AG 18 Nov 1971 [19 Nov 1970] 53626/71 Heading B7D In a motor vehicle suspension comprising a pivoted suspension arm 2 connected by arubber bushed pivot bearing 7 to a resilient strut 3 including a coil spring 5 and a telescopic damper 4 arranged with its axis 8 located in a strut deflection plane perpendicular to the pivot axis 9 of the arm 2, the axis 10 of the spring 5 is disposed in the strut deflection plane at an angle to the damper axis 8 and the spring 5 is under an exclusively axial load when the suspension is at the design height. When the suspension deflects in either direction from the design height a transverse force is generated in the spring to oppose the bending moment induced in the strut by torsional stressing of the rubber bush in the pivot bearing 7. The invention may be used in conjunction with trailing suspension arms semi-trailing arms, transverse arms, parallelogram linkages or beam axles.
Patent GB-1386024-A (GB)
Title: Apparatus for and method of cutting web material
IPC: G03D15/04
Filed: 1972-11-22
Abstract: 1386024 Cutting apparatus ILFORD Ltd 19 Oct 1973 [22 Nov 1972] 53868/72 Heading B4B  A method of performing a cross-cutting operation on a web of flexible material, e.g. photographic film, to form a discrete sheet of material followed by an operation on the trailing edge of the formed sheet, which method comprises moving the leading edge of the web to a clamping station, clamping the leading edge of the web, cross-cutting the web to form a severed sheet of flexible material, causing the middle of the severed sheet to bow in a predetermined curvature whilst maintaining the trailing edge of the sheet material parallel to the position in which it was cross-cut, thus causing the trailing edge of the sheet to move towards the leading edge of the sheet by a predetermined distance and then performing the operation on the trailing edge of the severed sheet. An apparatus for performing the method comprises a base 1 over which the web is fed by feed rollers 13 to the clamping station where it is clamped by a clamp 2. A guillotine blade 5 is provided for severing the web, the latter being bowed by means of a convex member 11 engaging a corresponding concave recess 9 in the base; alternatively, the web may be bowed by applying suction or compressed air to either the convex member or the concave recess. The member 11 may be formed with a shoulder for clamping the trailing end of the web against a shoulder 10 on the base while solenoid-actuated punches 6, 7 round the corners of the sheet; similar punches 3, 4 are provided for rounding the leading edge of the sheet. The trailing end of the sheet may be clamped by a separate clamp 12. The web contacting surfaces of the convex member 11 and recess 9 and the clamp member 9, 12 are covered with a protective layer, e.g. looped nylon velvet.
Patent GB-1277328-A (GB)
Title: Improvements in and relating to fountain pens
IPC: B43K5/18
Filed: 1970-11-16
Abstract: 1277328 Fountain pens PHILIPP MUTSCHLER 16 Nov 1970 [11 April 1970] 54342/70 Heading B6P The nib section of a fountain pen comprises a housing 2, a feed bar 3, a sleeve 10 surrounding the feed bar which depress a helical overflow chamber 11, and an integral flange and spigot with capillary channels 20 for connection to the cartridge or piston type reservoir of the pen.