baber/WOPTO huggingface dataset:
Patent GB-1364438-A (GB)
Title: Lead acid batteries
IPC: H01M10/10
Filed: 1970-08-18
Abstract: 1364438 Lead-acid batteries with gelled electrolyte ELECTRIC POWER STORAGE Ltd 16 Aug 1971 [18 Aug 1970] 39747/70 Heading H1B A dry-charged lead-acid battery having conventional positive and negative plates 10, 11 spaced by ribbed separators 12 is supplied by the manufacturer with the electrolyte in gel form distributed in a discontinuous manner as droplets or patches throughout the electrolyte space. (In the Figures these patches are denoted by speckled areas.) To use the battery water is added, the dispersed gel patches ensuring that the liquid electrolyte forms quickly and the battery may start a car after only one hour. The electrolyte gel patches are formed in the battery by supplying concentrated H 2 SO 4  of molar concentration of at least 8 and sodium silicate of a molarity of at least 1 to the normal battery filling apertures at controlled flow rates, the two liquids blending before they enter the battery. The liquid concentrations are such that the gel is formed within 5-25 sees. Filling apparatus is described with reference to Figs. 4-6 (not shown).
Patent GB-1379137-A (GB)
Title: Manufacture of progressive burning propellants and product
IPC: C06B45/22
Filed: 1972-08-25
Abstract: 1379137 Propellants HERCULES Inc 25 Aug 1972 [3 Sept 1971] 39864/72 Heading C1D Particles of a nitrocellulose smokeless powder propellant are coated with a burning rate deterrent comprising a linear polyester of a dihydric alcohol and a dicarboxylic acid, the ester having a molecular weight of 1500- 30,000 and a melting point not above 190‹ F. Polyesters may be formed from ethylene glycol, polyethylene glycol, propylene glycol, polypropylene glycol, or neopentyl glycol with adipic, azelaic, phthalic, or sebacic acid; esters formed from octanol, decanol, palmitic acid, stearic-oleic acid, C 11 -C 12  dibasic fatty acids, decanoic, lauric, and myristic acids may also be included. In examples, smokeless powder components are nitrocellulose, nitroglycerine, barium nitrate, diphenylamine, and potassium sulphate. Coating may be effected by agitating the smokeless powder with the polyester in the presence of water and a solvent for the polyester, e.g. methylene chloride, benzene, diethyl ether, or n-butanol; the water and solvent may be removed by evaporation and the coated product cooled. The polyester penetrates a short distance below the surface of the particles but does not migrate further during storage.
Patent GB-1101290-A (GB)
Title: Device for operating forcing-house windows
IPC: E05F15/20
Filed: 1966-09-07
Abstract: 1,101,290. Control of two motors. C. E. VAN TOL. 7 Sept., 1966 [7 Sept., 1965], No. 39932/66. Heading H2J. [Also in Division E2] Windows 2, 3 situated in pairs one on either side of a ridge of a forcing house 1 are operated by pair(s) of electric motors 4, 5 one on each side of the ridge. The motors drive gears 6, 7 having shafts 8, 9 which may run the length of the forcing house. Pinions 10, 11 attached to the shafts engage racks 12, 13 fixed to the windows. An intermediate shaft (18, Figs. 3 and 4, not shown) between the armature or rotor shaft of the electric motor 4 and shaft 8 is provided with transmission devices (19, 20 and 22, 23) at each end, the former for operating end switches (in device 21) and the latter for driving a feedback potentiometer (in device 24). A switching device 16 is provided for each pair of electric motors which in conjunction with the end switches operates so as to ensure that the windows on one side of the forcing house cannot be opened until after the windows on the other side are totally opened and that the first mentioned windows have to be closed totally before the ones on the other side can be moved to their closed position. The switching device preferably comprises a selector switch for determining which windows are to be opened first and closed last. Selection may be determined by wind direction. The switching device may be rendered operable by electric impulses generated as the result of a temperature change, or change in relative humidity, inside or outside the forcing house. To prevent the windows being opened and closed too rapidly in succession, the signal generating the electrical impulses may be modified according to the position of the windows. For instance, in the case of a resistance element being used to detect temperature change, the resistor may be incorporated in a bridge circuit in which feedback potentiometers are also provided, the sliders of which are coupled to the electric motors.
Patent GB-1277041-A (GB)
Title: Implosion-resistant cathode-ray tube envelope
IPC: H01J29/87
Filed: 1969-08-11
Abstract: 1277041 Cathode-ray tubes OWENSILLINOIS Inc 11 Aug 1969 [23 April 1969] 40058/69 Heading H1D The face-plate flange 24 of a cathode-ray tube is reinforced by a band 29 located between mould-match line 26 and splice line 16, the thickness to length ratio of the flange in the vicinity of the mould-match line 26 lying between 1 : 3À5 and 1 : 4À5. The length is defined as the distance between the splice line 16 and the point where the bisector of the corner between the face-plate and the flange intersects the external surface of the tube. The thickness to length ratio of the flange at a point immediately adjacent this corner lies between 1 : 3À5 and 1 : 4. The reinforcing band 29 may be surrounded by a tension band 30.
Patent GB-846964-A (GB)
Title: Universal joint
IPC: F16D3/28
Filed: 1957-12-27
Abstract: 846,964. Universal joints. SWAIN, F. E. Dec. 24, 1958 [Dec. 27, 1957], No. 40187/57. Class 80 (2). A Hooke's joint comprises a cruciform spider 5 carrying frusto-conical bearing-members 4 engaging in correspondingly-shaped holes 3 in forked jaws 2 formed on the driving and driven shafts 1. Each bearing-member is in screwthreaded engagement with an arm of the spider, a locking-plug 6 being provided and a fibre washer or a key being interposed between the arm and the plug. In a modification, Fig. 7, the side walls of jaws 16 are formed as frustoconical surfaces 17 and bearing-blocks 18 of plastic or of sintered metal are disposed between each adjacent pair of surfaces. Each bearing- block 18 has a frusto-conical hole in which a frusto-conical member 20 is inserted and screwed on to an arm of the spider. The bearing-blocks 18 may be replaced by frusto-conical rollers. The bearing members may be coated with a lubricant such as molybdenum disulphide.
Patent GB-910647-A (GB)
Title: Improvements in or relating to tea rolling machines
IPC: A23F3/12
Filed: 1958-12-16
Abstract: 910,647. Tea rolling machines. DE SAN, M. G. Dec.16, 1958, No. 40522/58. Class 129. In a tea rolling machine 1, an air stream is passed through substantially the whole of the tea mass 3 before leaving the machine. The machine 1, Fig. 1a comprises a rotatable screw 2 at the base of a tea container at or near whose base and upper end respectively are air inlets and an air outlet. As shown, the air is supplied through a lever operated valve 8 from a pipe 10, which may supply several rolling machines, and is fed from a fan 16 through wire screens 13 on to which water drips. The temperature of the machine may be controlled automatically. A screen 5 made in two halves is provided at the top of the machine 1. Alternatively, Fig. 3, air is supplied from the hollow shaft of screw 3 through holes 29 protected by baffles 27, 28. In a further modification, an air passage is formed between the shaft and a fixed casing leading to a cavity under the screw. Specification No. 25599/11 is referred to.
Patent GB-1048518-A (GB)
Title: Improvements in or relating to fluid heated vapour generators
IPC: F22B1/08
Filed: 1965-09-23
Abstract: 1,048,518. Vertical boilers. BABCOCK & WILCOX CO. Sept. 23, 1965 [Sept. 24, 1964], No. 40554/65. Heading F4A. A vapour generator heated by helium from a nuclear reactor comprises a vertical pressure vessel 12 enclosing an insulated stainless steel container 18 to define an annular space 20 therebetween. Helium enters the vessel 12 and the container 18 through inlet duct 24 and is distributed by frusto-conical baffles 28 over helically coiled reheating tube bank 86, supported by radial arms 94, and which extends from inlet header 78, up and around conduit 62 and then down through it to outlet header 80. The helium then passes over a similar combined boiler-superheater tube bank 68 extending between inlet header 52 and outlet header 54; alternatively the reheater and the combined boiler-superheater tube banks may be arranged in parallel. The helium next passes through passageways 38 to chamber 22, below the container 18, wherein a blower 104 circulates it through passageways 48, chamber 50 and annular space 20 to outlet passageway 27 about the inlet duct 24, so preventing excessive thermal stresses in the vessel shell 12. Nozzles 111, 113 for emergency circulation of the helium in case of failure of the blower 104 are provided. Further tube banks may also be incorporated in the shell.
Patent GB-950264-A (GB)
Title: Improvements in or relating to scanning display devices
Inventor: SCHAGEN PIETER
IPC: H04N3/08
Filed: 1962-10-26
Abstract: 950,264. Electric discharge tubes. MULLARD Ltd. Oct. 26, 1962, No. 40591/62. Heading H1D.  In an arrangement as disclosed in Specification 865,665, wherein a banana type television tube has a cylindrical rotatable carrier having cylindrical lenses for producing the frame scan, the carrier is mounted in an evacuated envelope which may also house the gun. This may be mounted at right-angles to the axis of the tube, as shown, or parallel to the axis. Colour filters may be employed internally or externally. The gun may give a plurality of electron streams for colour television, or a single stream of the wobble spot type. The tube when used for picture display may be used with a stationary concave mirror whose radius of curvature is not constant. The luminescent layer may be internal or external with a translucent external reflector such as sprayed aluminium. An internal lens system may also be employed. Specifications 865,666, 890,395 and 900,431 also are referred to.
Patent GB-1425560-A (GB)
Title: 1-substituted-4-benzamido-piperidines and methods for their  preparation
IPC: C07D211/58
Filed: 1972-09-01
Abstract: 1425560 4 - Benzamido - piperidine derivatives JOHN WYETH & BRO Ltd 29 Aug 1973 [1 Sept 1972] 40618/72 Addition to 1345872 Heading C2C Novel compounds III: in which Z is carbonyl, hydrogen and hydroxy or two hydrogen atoms and A is alkylene optionally substituted by a methyl group and containing up to 5 C atoms and their acid addition and quaternary ammonium salts are prepared by reacting 4-benzamidopiperidine with a compound V: in which Y is halogen or tosyl. Compounds I (Z=OH+H) are also prepared by reduction of a compound I in which Z is carbonyl preferably using sodium borohydride. Compounds I prepared are those in which CZ-A is 4-(oxo or hydroxy)-butyl and 2-(oxo or hydroxy)-1- methyl-ethyl. Compounds I have anti-histamine activity and possess α-adrenoceptor antagonism and form with a carrier a pharmaceutical composition which may be administered orally or parenterally.
Patent GB-1317170-A (GB)
Title: Sterile washing method and apparatus
IPC: B04B5/04
Filed: 1970-08-24
Abstract: 1317170 Washing blood cells HAEMONETICS CORP 24 Aug 1970 [22 Oct 1969] 40715/70 Heading ASB [Also in Divisions B1 and B2] In a process for glycerolization of blood for storage, or for deglycerolizing stored blood, the liquid containing blood cells is fed through tube 12 into centrifuge rotor 10 to displace sterile air in the rotor into flexible collapsed pouch 32. Glycerol or saline liquid is then fed into rotor 10 through tube 12 as the blood cell suspension is being centrifugal so that the new liquid replaces the original liquid which is forced into pouch 32 below the displaced sterilized air, leaving the blood cells suspended in the new liquid in the rotor 10. The rotor is stopped, and bag 32 is squeezed to force sterile air from the bag into rotor 10 to displace the new blood cell suspension to fill tube 25, whereupon the rest of the suspen sion in rotor 10 syphons through tube 25 into collapsed container 27. The blood is thus glycerolized by replacing its liquid with glycerol, or deglycerolized by replacing the glycerol with saline solution. Specification 1,273,640 and co-pending application 40714/70 are referred to.
Patent GB-1474507-A (GB)
IPC: A01D34/24
Filed: 1975-10-07
Abstract: 1474507 Harvesting sugar cane P C BELL and G W BELL 7 Oct 1975 [15 Oct 1974] 40914/75 Heading A1F A cane harvester 10 has a base cutter assembly 12 comprising a reciprocatory cutter 18 for cutting cane at or adjacent the ground and a pivotally mounted gathering arm 30, the gathering arm 30 being swung by means of an hydraulic ram 28 from a position substantially behind the edge of the cutter, for supporting and gathering cane being cut to a position for depositing cut cane, substantially alongside the cutter 18. The cutter 18 is slidably mounted, for horizontal reciprocating movement, in a support sleeve 12.6 of a support arm 12.1 pivotally attached to the frame 10.1 of the harvester for movement in a vertical plane, into and out of its working position. The cutter 18 is held in the sleeve by springs 20 and reciprocated by an eccentric 22. The harvester 10 also comprises a grab 36 for picking up cut cane deposited by the gathering arm and a reciprocatory cutter 38. movable in a vertical plane, for cutting the leaf tops from cane being held by the grab. Positioning of the cutter assembly 12, the grab 36 and the cutter 38 is achieved by hydraulic or pneumatic rams. The harvester may be tractor mounted or, as shown, self-propelled and steered by controlling the operation of hydraulic motors (not shown) which independently drive the wheels 10.2.
Patent GB-1243240-A (GB)
Title: Implosion protection for cathode ray tubes
IPC: H01J29/87
Filed: 1968-08-28
Abstract: 1,243,240. Cathode-ray tubes. INTERNATIONAL STANDARD ELECTRIC CORP. 28 Aug., 1968 [31 Aug., 1967], No. 41146/68. Heading H1D. In an implosion protection arrangement for a cathode-ray tube having a rectangular faceplate in which at least one layer of metallic, plastics or glass fibre ribbon is wrapped under mechanically induced tension only around the junction between the faceplate and the body of the tube and joined to form an implosion protection band having substantially the same tension as the ribbon during the wrapping process, pressure compensating strips are inserted under the wound ribbon centrally of at least two opposite longer sides of the faceplate. The pressure compensating strips may have a length substantially equal to one third the length of the side of the faceplate over which they are inserted, they may be formed of flexible material and each strip may comprise several pieces. Mountings for securing the tube to associated equipment may be bound to the tube by the ribbon.
Patent GB-1459452-A (GB)
Title: Vehicle brake actuators
IPC: F16D65/28
Filed: 1973-09-04
Abstract: 1459452 Actuators GIRLING Ltd 18 July 1974 [4 Sept 1973] 41470/73 Heading F2F A vehicle brake actuator comprises a cylinder 2 within which a service brake actuating diaphragm 4 operates and a cylinder 1 within which an auxiliary or emergency brake actuating piston 7 operates; the piston 7 is normally held in its illustrated brake released position by fluid pressure opposing the force of a coil compression spring 8 which biases the piston 7 away from a cylinder end wall 9. An elongate hollow release member 14 is rotatably mounted in an opening 15 in the end wall 9 and includes an internally screw-threaded portion 14B co-operating with a screw-threaded abutment member 17 having a head 17A engageable by a flange 18 on the piston 7 to limit movement of the piston 7 away from end wall 9; the piston 7 is slidably guided on the release member 14 by means of hollow piston part 13 and is retractable from its brake applying position against spring 8 by rotation of the hollow member 14 relative to the abutment member 17. As shown, the piston 7 has a piston-rod 11 which extends through a wall 12 dividing the cylinders 1, 2. During service actuation pressure fluid acts on diaphragm 4 to move an actuating member 3 leftwardly. In response to a pressure loss via inlet 10 (e.g. by manual valve control for parking or by pressure failure) the piston 7 moves in the brake applying direction, and rod 11 abuts diaphragm 4 to move actuating member 3, until flange 18 abuts head 17A. To manually release the brake the member 14 is rotated by a spanner or key and the abutment member 17 is thereby screwed into member 14 to retract piston 7. Substantial axial movement of member 14 is prevented by co-operation of a circlip 16 and an enlarged head 14A with the periphery of opening 15. Removal of a circlip 19 retaining end wall 9 allows piston 7 to be removed from the cylinder 1. The walls 9, 12 may be apertured plates. The piston-rod 11 may be articulated to the piston 7.
Patent GB-1066369-A (GB)
Title: Improvements in or relating to connecting plates
IPC: F16B15/00
Filed: 1964-10-12
Abstract: 1,066,369. Spiked plates. G. H. TEMPLIN. Oct. 12, 1964 [Feb. 5, 1964], No. 41556/64. Heading F2H. A plate for connecting adjacent members of a wooden truss comprises pairs of wood penetrating teeth (7) struck therefrom so as to provide openings (9) between each pair, each tooth having an arcuate base portion (15) and a sharpened edge (17) extending at an angle with respect to the body of the plate and the other edge extending from the plate perpendicular with respect thereto. Each tooth has a barb (23) thereon adjacent the point, the barb being provided with an inclined nose (25). The plate has longitudinally extending ribs formed by grooves (13); the ribs extend between the rows of teeth and project from the opposite face of the plate. The edge (17) is sharpened by a coining operation.
Patent GB-1428869-A (GB)
Title: Lens shaping machine and method
IPC: B24B17/06
Filed: 1974-09-24
Abstract: 1428869 Grinding edges of lenses HOYA LENSKK 24 Sept 1974 [11 Oct 1973] 41569/74 Heading B3D A lens shaping machine comprises a rectilinearly movable support structure 1 including a projector 7 for producing an image 23 of an aperture of a spectacle frame 2 and, spaced from the projector, a reading reproducer 10 including a photo detector; a second support structure 13 movable parallel to the first and including a rotatable support 15 for a lens 14 to be shaped and a rotatable support 17 for photo-sensitive material 16 constrained to move with the lens support and able to be brought into register, by relative movement of the support structures 1, 13, with either of the projector or reproducer; a grinding wheel 19 for shaping the periphery of the lens; and a control circuit for receiving signals from a pressure detector 22 on the structure 13 and from the reproducer 10 to cause the structure 13 to move the lens into contact with the grinding wheel under a given pressure or to cease such contact. The supporting structure 1 is movable along rail 12 by a screw driven by means 11 and has a hook 4 for suspending a spectacle frame 2 so that one half is aligned with an opening 3. The recorder 7 is behind the opening 3 and has a lamp 5 and beam collecting lens 6. The reproducer 10 is at the other end of the structure 1 and consists of a lamp 5<SP>1</SP>, semi-reflective mirror 8, beam collecting lens 6<SP>1</SP> and photo-detector 9. The lens 14 is mounted between sections of a rotatable shaft 15 on the second supporting structure 13 which is movable along rails 12<SP>1</SP> by a screw driven by means 111 to engage the edge of the lens with the grinding wheel 19. The shaft 15 also carries a recording plate 17 on which is placed photo-sensitive paper 16. In operation, the support structure 1 is positioned so that the reproducer 7 is aligned with plate 17 and a frame 2 is suspended from hook 4. The lamp 5 forms an image 23 on the material 16 which is developed. The structure 1 is then moved to align the reproducer 10 with the grinding surface of the wheel 19 and the photodetector 9 connected to the drive means 11<SP>1</SP> for the supporting structure 13. The shaft 15 is slowly rotated and when the point of light projected by the half mirror 8 and lamp 5<SP>1</SP> impinges on the photo-sensitive paper 16 off the image 23, the detector 9 operates the drive means 11<SP>1</SP> to advance the edge of the lens 14 into engagement with the grinding wheel with a force determined by a pressure detector 22 in the control circuit 20 of the motor 21 of the drive means 11<SP>1</SP>. As the point of light comes on to the image 23, the advance of the support structure is stopped or reversed if the point of light passes within the image.
Patent GB-973805-A (GB)
Title: Improvements in and relating to methods of applying coatings to carriers
IPC: G01N1/28
Filed: 1960-12-05
Abstract: In a method of forming a uniform coating on the surface of an object, charged particles of coating material are caused to impinge in unfocused manner on the surface, the latter being in a position in which it cannot be seen from the particle source(s) and the charged particles being caused by electric and/or magparticles being caused by electric and/or magsource to surface.  The particle source may either be a source of ionized particles or a source from which uncharged particles are set free to be subsequently charged in the gas phase.  Uniformity of coating is accentuated by the use of alternating electric or magnetic fields. The particles may be decelerated by an electric counter-field before impinging on the surface.  Mixed or alternating coatings may be deposited by using more than one particle source. Thus silicon carbide may be deposited from two separate sources. Prior to coating, the surface may be polished or etched by accelerated particles which are caused to impinge, respectively, from a plurality of directions or from one direction.
Patent GB-889591-A (GB)
Title: Linear polymers having a stereoregular structure of vinyl cyclic monomers
IPC: C08F8/04
Filed: 1960-12-06
Abstract: Polymers of nuclear-alkoxy-substituted styrenes, which polymers have stereo regular structures, may be prepared by polymerizing alkoxy styrenes in the presence of a catalyst having the formula XnMeR1m wherein M is aluminium, tetravalent titanium, tetravalent tin, tetra- or pentavalent vanadium, trivalent chromium or trivalent iron; X is a halogen; R1 is an alkyl, aryl, alkoxy or carboxylate group; m and n are each at least 1 and m+n is the valency of the metal Me. Preferred alkoxy styrenes are those in which the alkoxy group contains up to 5 carbon atoms, particularly o-methoxy styrene. The catalyst may be ethyl aluminium dichloride, diethyl aluminium chloride or titanium diacetate dichloride.  Polymerization may be effected at 0 DEG  to -100 DEG C. in the absence or presence of a diluent, e.g. toluene and n-heptane.  The products may be hydrogenated in the presence of Raney nickel catalysts and Example 1 describes the hydrogenation of poly-o-methoxystyrene to poly-o-methoxyvinylcyclohexane.
Patent GB-1039839-A (GB)
Title: Material spreaders
IPC: A01C15/02
Filed: 1964-10-16
Abstract: 1,039,839. Powder distributers. O. M. SCOTT & SONS CO. Oct. 16, 1964 [Dec. 4, 1963], No. 42272/64. Heading A1D. A distributer for lawn treating material comprises a hopper 42 with holes 72 through which material is fed by a rotary agitator driven by wheels 21, the hopper being so shaped that it may be turned over by a handle 16 to a position as shown where the holes lie above the material in the closed end of the hopper so that agitator action does not result in discharge of material through the holes. A bag of material is inverted into the hopper and is supported by a cross-bar 62 and an elastic cord 68.