baber/WOPTO huggingface dataset:
Patent GB-1229207-A (GB)
IPC: F01L13/06
Filed: 1967-10-19
Abstract: 1,229,207. 207. I.C. engine valve gear. ROLLSROYCE Ltd. Oct.4, 1968 [Oct. 19, 1967], No. 47548/67. Heading F1B. The invention relates to a four-stroke piston engine of the kind comprising a cam-shaft 10 driven from the engine crank-shaft, the cams on the cam-shaft operating push rods which in turn operate rocker arms to open and close the inlet and exhaust valves. Means are provided to vary the timing of the exhaust valve such that as the piston approaches top dead centre at the end of the compression stroke under throttle-closed conditions, the exhaust valve opens so that the air compressed in the cylinder is discharged to atmosphere instead of expanding in the cylinder to drive the piston. The engine comprises an auxiliary push rod, one end of which is adapted to engage with the exhaust valve rocker arm 12 to open the valve 9, the other end of the push rod being provided with a cam follower adapted to engage a cam on the cam-shaft or an auxiliary cam-shaft, there being actuating means for causing the normal push rod to cease operation and to bring the auxiliary push rod into operation. In the engine shown the normal push rod 11 has a tappet 11a which engages against surface 24 of the rocker arm 12, a follower at the lower end of the rod engaging against cam 13. An auxiliary push rod 20 is provided having a tappet 21 at its upper end and engaging at its lower end against one arm 32 of a pivotally-mounted bellcrank lever 33, the other arm 36 of which is adapted to engage against cam 13. The two push rods are slidably engaged in a rod 22 which is axially movable against a spring 26 by means of an hydraulic piston actuator 30 which acts through a spring. In normal operation as shown the push rod 11 is operative to control opening of the exhaust valve 9. When engine braking is required, the actuator 30 is operated to move the rod 22 to the left so that the tappet 11a moves along the surface 44 and the light spring 38 holds the follower of the push rod 11 out of engagement with the cam. At the same time the tappet 21 of the rod 20 moves along the surface 46 to engage against the surface 24 of the rocker arm and the bell-crank follower 33 is pivoted clockwise against the loading of spring 50 until the surface 34 engages against the cam 13. The auxiliary push rod 20 is now operative to open the exhaust valve 9 at the end of the compression stroke. .
Patent GB-1231386-A (GB)
IPC: B65H1/18
Filed: 1967-08-04
Abstract: 1,231,386. Feeding sheets. AUTOFEEDS LONDON Ltd. 31 July, 1968 [4 Aug., 19671, No. 36028/67. Heading B8R. Sheets separated from pile 1 by suction pads 7 on head 5 are forwarded to transport rollers 3 and 4. A member 9 senses the level of the upper surface of the front of the pile and controls hoist 2 to maintain the surface in alignment with rollers 3 and 4. A member 8 on head 5 senses the level of the upper surface of the rear of the pile and controls the vertical level of the head 5. Member 9 may be pivotable about axes 10 and also vertically movable so that it can engage the sheet below the one being separated. Alternatively, the front senser may be photo-electric. Head 5 is pivotable about point 6. In a modification the rear senser may control the hoist and the front senser the head. Pivotable front stop 13 controls the release of sheets to rollers 3 and 4. Head 5 may include means for blowing air beneath the top sheet of the pile to assist separation.
Patent GB-1231584-A (GB)
IPC: E03C1/22
Filed: 1967-06-07
Abstract: 1,231,584. Improvements in plugs for waste openings. ALLIED IRONFOUNDERS Ltd. 22 May, 1968 [7 June, 1967], No. 26191/67. Heading A4N. A plug for a waste opening, having a grille 9 Fig. 1, of a receptacle such as a bath, basin or sink, comprising a tapered stopper 1, a finger grip for positioning and removal thereof in the form of a disc 2 .parallel with and spaced from the upper surface 3 of the stopper by a short column 4, and a shank 5 extending from the lower surface of the stopper having integral resilient protuberances 6 and 7 which cooperate with the grille 9 to enable the stopper to be held in the open position. The plug, if the members 5-7 are relatively rigid, may be used in combination with a grommet 10, Fig. 3, located in the grille and having longitudinal slots 11 and an internal bead 12 at its lower end, the slots 11 enabling the diameter of the lower end of the grommet to be altered as the shank of the plug is moved therethrough. In a modification, Fig. 5 (not shown), the shank is secured to the plug by adhesive and the protuberances thereon are hollow and resilient.
Patent GB-1233238-A (GB)
IPC: F16B39/284
Filed: 1968-12-05
Abstract: 1,233,238. Lock nuts. GRIP NUT CO. 5 Dec., 1968 [29 Jan., 1968], No. 57729/68. Heading F2H. A locknut comprising a threaded bore 19 and an even number of generally flat side walls 11 to 16 is provided on each alternate side wall with a pair of indentations 21, 121 each having a V-shaped cross-section, the turns of the thread in regions 31 being deformed radially inwards due to the formation of the indentations 21, 121. The locknut may be provided with a frusto-conical crown portion 17 and each indented generally flat side wall 11, 13, 15 may be slightly concave whereas each non-indented generally flat side wall 12, 14, 16 may be slightly convex.
Patent GB-1233914-A (GB)
IPC: B29D35/12
Filed: 1968-06-27
Abstract: 1,233,914. Making moulds. INDUSTRIEWERKE LEMM & CO. G.m.b.H. 27 June, 1968 [30 June, 1967], No. 30733/68. Heading B3A. [Also in Division C7] A method of making a mould for compression or injection moulding of plastics or rubber comprises galvanically forming a covering element 8 upon a pattern, disposing and adjusting the element by means of lands, webs or lugs provided on its outer face, subdivided as may be required, into a cavity or cavities 7 substantially larger than the element or element parts, in a mould block or mould blocks 5, filling interstices between the or each covering element and the block or respective blocks with pressure resistant material 11, and in the case of a subdivided mould machining the contacting faces of the blocks. The covering element is preferably 0.8 to 1 mm. in thickness and the interstices filled by pouring metal. The preferred articles to be moulded are boots and shoes. The element is supported away from the block by members 9. The inner part of the mould, 12, may also be made in the same manner.
Patent GB-1251817-A (GB)
IPC: C07D251/28
Filed: 1968-11-15
Abstract: 1,251,817. Cyanuric chloride. AGRIPAT S.A. 15 Nov., 1968 [16 Nov., 1967], No. 54272/68. Heading C2C. Cyanuric chloride is recovered from a gaseous mixture containing the same by continuously feeding a stream of the gaseous mixture to a fractionation column, condensing a part of the cyanuric chloride in the lower part of said column at a temperature of from 195‹ to 200‹ C., simultaneously feeding liquid phosphorus oxychloride into the upper part of said column to wash the remaining cyanuric chloride from the residual gaseous mixture, fractionating the resulting solution within the upper part of the column at a temperature of from 90‹ to 198‹ C. to separate said remaining part from the phosphorus oxychloride and continuously recovering the total cyanuric chloride in liquid form.
Patent GB-1251847-A (GB)
IPC: C08G8/00
Filed: 1969-03-24
Abstract: 1,251,847. Homopolymers of tris(2-hydroxyalkyl)isocyanurates. ALLIED CHEMICAL CORP. 27 March, 1969 [25 March, 1968; 18 Feb. 1969], No. 7375/71. Divided out of 1,251,846. Heading C3R. Tris(2-hydroxyalkyl)isocyanurate in which each alkyl group contains at least 2 carbon atoms, is polymerized by dissolving the isocyanurate and an acid etherification catalyst in solvent water, e.g. heated to 80‹ C., and adding a further solvent which forms an azeotrope with water. The mixture is heated at up to 250‹ C. whereby the solvent water and water of condensation are removed as azeotropes. The reaction is terminated before more than 0.75 mol. of water of condensation per mole of isocyanurate have been removed. The pH is maintained at <6 throughout the reaction.
Patent GB-1252358-A (GB)
IPC: A47J37/08
Filed: 1969-11-18
Abstract: 1,252,358. Fire guard. ELTROLUED E. SCHMIDT & CO. 18 Nov., 1969, No. 56347/69. Heading F4W. [Also in Division A4] A grating is made from sheet material having lattice-like apertures 2 and flanges 3a and 3b at top and bottom, each flange having further apertures 4 for the location of tabs on a heating element (not shown) in order to form a unitary structure with the same. Apertures 11 are for element leads and apertures 7 and 8 are for location on tabs 9 of the device e.g. a toaster in which the unit is used.
Patent GB-1252561-A (GB)
IPC: F02M61/12
Filed: 1968-03-22
Abstract: 1,252,561. Welding by fusion. SIMMS GROUP RESEARCH & DEVELOPMENT Ltd. 21 April, 1969 [22 March, 1968], No. 13897/68. Heading B3R. [Also in Division F1] In a fuel injection nozzle (see Division F1) a spring chamber 6 is electron beam welded to a sleeve 5 and guide bush 2 at face 7. In modifications the bush 2 may be electron beam welded to sleeve 5, the bush 2 may be formed integrally with chamber 6 or the sleeve 5 may be formed integrally with the body portion 1.
Patent GB-1256742-A (GB)
IPC: A47L13/30
Filed: 1969-01-01
Abstract: 1,256,742. Polishing machines. D. C. LEWIS March 31, 1970 [Jan. 1, 1969], No. 111/69. Heading A4F. A machine for polishing footwear and other articles comprises a rotary brush or other polishing device 7 mounted on the shaft 6 of an electric motor 4 in a casing 1, 2. The part 2 of the casing is filled with polishing paste which is pressed by a plunger 9, operated by a lever 6 when desired, through apertures 8 in a polish applying pad 8a surrounding the brush 7. In an alternative embodiment the plunger 9 is operated by rotating a member 12 Fig. 2 (not shown) screw threaded on a tube surrounding the shaft 6. A stiff brush for the removal of mud, etc, may be secured to the casing 1, 2.
Patent GB-1257762-A (GB)
IPC: B60T13/74
Filed: 1970-02-03
Abstract: 1,257,762. Control of D.C. motors. DAIMLER-BENZ-A.G. 3 Feb., 1970 [5 Feb., 1969], No. 5036/70. Heading H2J. The control system for an electrically-driven vehicle having mechanical braking which supplements as necessary 'the regenerative braking provided by a D.C. motor normally supplied by a battery, includes a regulating device directly responsive to the state of charge of the battery to determine the proportions of the total braking action (at each brake pedal setting) provided by the mechanical and electrical braking, the total braking action for the setting being maintained constant. As shown the conventional braking system comprises a brake pedal 1 operable, via members 2, 4, variable resistor 7 and controller 8, to vary the current through the field windings 5 of an electric motor 6 and operable, via members 2, 11 . . . 15, to vary the air pressure in wheel-brake cylinders (not shown) supplied from an outlet 17. A control member 23, responsive to the charging voltage and/or temperature of the battery 9, supplies the winding 22 of an electromagnetic device 20 whose core 21 is physically connected to the variable resistor 7 and, through a spring 30, to the piston 13 of the mechanical brake valve 10. If the state of charge of the battery permits of the full generated output of the motor 6, depression of the pedal 1 produces regenerative braking up to this output followed by mechanical braking as the lever 2 engages the end of a slot in the link 11. If the state of charge does not permit of the full output, the output signal from member 23 causes the device 20 to displace the resistor 7 and the piston 13 to respectively decrease and increase the proportions of electrical and mechanical braking. A contact 24 operable by the lever 2 ensures that the output signal from the member 23 is only applied to the winding 22 when the brake pedal 1 is operated. A discussion is given of the design of the system to provide a predetermined characteristic of braking action against pedal force, Fig. 2 (not shown), with varying proportions of electrical and mechanical braking. A damping element 19 provides for immediate emergency mechanical braking.
Patent GB-1265912-A (GB)
IPC: C11D3/42
Filed: 1970-04-06
Abstract: 1,265,912. Benzoxazoles as optical brighteners. FARBENFABRIKEN BAYER A.G. 6 April, 1970 [5 April, 1969; 25 Oct., 1969], No. 16222/70. Heading C3P. [Also in Divisions C2 and D1] Polymers, e.g. polyvinyl chloride, polyethylene, polypropylene or polystyrene, have incorporporated therein as an optical brightener a benzoxazole compound of general formula in which R<SP>1</SP> and R<SP>2</SP> are identical or different and stand for H, halogen or alkyl groups, or together stand for the residual members of a cycloaliphatic 5- or 6-membered ring; R<SP>3</SP> stands for hydrogen, halogen, an alkyl, cycloalkyl, aralkyl, aryl, carboxylic acid ester, carboxylic acid amide, alkylsulphonyl, arylsulphonyl or aminosulphonyl radical; R<SP>4</SP> stands for hydrogen or an alkyl radical; R<SP>3</SP> and R<SP>4</SP> together may also be the residual members of a cycloaliphatic 5- or 6- membered ring; and R<SP>5</SP> stands for an alkyl radical or hydrogen.
Patent GB-1265951-A (GB)
IPC: C14C15/00
Filed: 1968-02-13
Abstract: 1,265,951. Laminating method. T. W. BARLOW. 9 April, 1969 [13 Feb., 1968], No. 6957/68. Heading B5N. A method of reinforcing animal skins comprises laying out a series of animal skins 5 on a conveyer belt 1, applying a continuous web 10 of flexible material e.g. a textile fabric or a synthetic plastics material to cover the skins on the conveyer belt after coating the skins or the web with an adhesive material e.g. polyvinyl chloride to secure them together, and stripping the resultant composite from the conveyer belt. In a preferred embodiment, the skins are coated with the adhesive material by a spray gun 6 having one or more nozzles and which can be reciprocated transversely of the conveyer belt, the applied adhesive is softened by infra-red heater 8 and the skins and the continuous web united between rollers 9 having a surface layer 96 of expanded plastics material and 11, the continuous web 10 being precoated with an adhesive material which is softened by infra-red heater 14. The skins, each with a backing of the flexible material may be cut from the composite by hand.
Patent GB-1266674-A (GB)
IPC: C09B45/06
Filed: 1970-03-18
Abstract: 1,266,674. Bulk-dyed polyamides. CIBAGEIGY A.G. 18 March, 1970 [3 April, 1969], No. 13015/70. Heading C3R. Synthetic linear polyamides are bulk-dyed with a 1 : 2-chromium complex dyestuff derived from 2 monoazo or 1 mono- and 1 dis-azo dyestuff the sole sulphonic acid group-containing dyestuff residue being either a dis-azo dyestuff or an o,o<SP>1</SP>-dihydroxymonoazo dyestuff of the mononaphthalene sulphonic acid azonaphthalene or benzeneazonaphthalene sulphonic acid series. The dye can be incorporated during polymerization or added to the chips or melt prior to spinning optionally with a salt, e.g. NH 4  or Na acetate or NaH 2 PO 4  or acetic or formic acid to speed absorption. The polyamide may contain a pigment and be spun into fibres or filaments or injection moulded, e.g. into zipfasteners or telephone receivers. In examples the polyamide is nylon 66.
Patent GB-1266712-A (GB)
IPC: C08F10/00
Filed: 1969-06-02
Abstract: 1,266,712. Polymerisation apparatus; controlling polymerisation. ESSO RESEARCH & ENG. CO. 2 June, 1969 [10 July, 1968], No. 27739/69. Heading B1X. [Also in Division C3] An apparatus for a two stage polymerization comprises a pair of polymerization vessels 100 and 150 separated by a flash zone 120, the latter including the usual vent 130 and also a monomer inlet 128. The apparatus is suitably used in the copolymerization of propylene and ethylene, as illustrated, and used for the controlled copolymerization thereof by (a) polymerizing a first monomer in vessel 100 in the presence of a diluent which is less volatile than the monomer, (b) discharging the effluent from vessel 100 into flash zone 120 which is maintained at a preselected substantially constant temperature and pressure, which pressure is lower than that of the first vessel 100, by means comprising temperature control system 124, 126 (valve 126 controls the flow of heat exchange fluid in 140) and pressure control system 122, 121. (c) adjusting in the zone 120 the dissolved first monomer content of the effluent so that it is saturated therewith and then flashing off any excess undissolved first monomer, thereby forming a monomersaturated effluent of known substantially constant monomer content, and (d) discharging said monomer-saturated effluent to the second vessel 150 and effecting copolymerization therein with a second monomer and, if required, further first monomer, the quantities employed of said monomers being calculable (for a desired product) from the known, substantially constant monomer content of the monomer-saturated effluent from the flash zone. An alternative form of the apparatus (Fig. 2, not shown) embodies the use of a heat transfer coil (226) in the flash zone and direct transfer, via an open conduit, of the product of the flash zone to the second vessel.
Patent GB-1266900-A (GB)
IPC: B41M1/30
Filed: 1969-05-27
Abstract: 1,266,900. Laminates. STOREY BROS. & CO. Ltd. 27 May, 1969, No. 26796/69. Heading B5N. A laminate is made by bonding a sheet of plastics material to a knitted fabric and is embossed either during or after bonding such that the area of each distinct embossment is large in comparison with the area of each stitch of the knitted fabric and the depth of each distinct embossment is greater than the thickness of the fabric. The plastics sheet may have a printed pattern which is visible through the fabric, and may be of plasticized P.V.C., polyethylene, polyurethane, ethylene/vinyl acetate copolymer or regenerated cellulose. The fabric may be a warp knitted loop raised nylon fabric which may be bonded to a sheet of plasticized P.V.C. by P.V.C. paste. Embossing of the laminate is effected by means of a nip roller having a sculptured surface.
Patent GB-1266904-A (GB)
IPC: F16K7/10
Filed: 1969-03-18
Abstract: 1,266,904. Valves. INSTITUTUL PENTRU PLANURI DE AMENAJARE SI CONSTRUCTII HIDROTEHNICE. 18 March, 1969 [18 March, 1968], No. 14289/69. Heading F2V. When deflated, a pair of flow control bags A, A assume the shape shown in Fig. 3 and lie within annular cavity c. Upon inflation of the bags by directing upstream fluid thereto via one of valves (12) and pipe 11, the bags assume the shapes shown in Figs. 4 and 6 and their faces interfit to prevent flow. Premature closure of valve (12) will maintain the bags in a partiallyinflated state. Deflation is controlled by vent valve 16. Each bag can be of fabric-reinforced rubber and is designed to experience no stretching during inflation; the end panels 2a-2d are shaped to allow folding in the deflated condition. The bags can have apertured internal strengthening walls and are bonded to the casing 4. A pressure gauge is provided at 17.
Patent GB-1289243-A (GB)
IPC: C07D313/04
Filed: 1971-03-25
Abstract: 1289243 Production of lactones LEUNAWERKE "WALTER ULBRICHT" VEB 25 March 1971 7796/71 Heading C2C Lactones are obtained by reacting cyclic ketones with an adduct of urea and hydrogen peroxide in the presence of formic acid at a temperature of 0-100‹ C. The urea-hydrogen peroxide adduct is preferably used in a molar excess relative to the cyclic ketone, e.g. in a molar ratio between 1À1 and 2À5 : 1, and the reaction may be conducted in an organic solvent. Specified cyclic ketone starting materials are cyclopentanone, cyclohexanone, and 2 - methyl-, 3 - methyl-, 4 - methyl-, 4 - tertbutyl-, and 2-cyclohexyl-cyclohexanone.
Patent GB-1296579-A (GB)
IPC: B65H3/06
Filed: 1970-10-21
Abstract: 1296579 Feeding sheets HENRY SIMON Ltd 21 Oct 1971 [21 Oct 1970] 49910/70 Heading B8R A sheet separating device comprises a pile holder 12 having a first sheet support means, e.g. a plurality of upright bars 14 each having a lower foot 14a, and a second sheet support means forming a metering gap 21, e.g. upright bars 20 spaced from tongues 19 the bars and tongues being mounted on a slidable bridge 16 to adjust the pile holder for different size sheets, a sucker bar having a plurality of suction grippers 23 being provided for engagement with the lowermost sheet of the pile and movable in one direction to disengage the sheet from the first support means so that the sheet enters said gap, then in the opposite direction to disengage the sheet from the second support means and from the remainder of the pile, transport means e.g. pinch rollers 26, being provided to transport the sheet against an abutment, the transport means thereafter continuing to force the sheet against the abutment whilst ceasing transporation of the sheet. These rollers 26 may be frictionally held on driven shafts 24 and capable of slip relative thereto, one roller being movable towards and away from the other by a cam mechanism. A cam operated smoother bar 29 and chain grippers may be provided.
Patent GB-1296644-A (GB)
IPC: G03B21/10
Filed: 1971-05-26
Abstract: 1296644 Optical projection apparatus; cine apparatus; cartridges RETENTION COMMUNICATION SYSTEMS Inc 26 May 1971 [14 Dec 1970] 17188/71 Headings G2A and G2E [Also in Division G5] A cartridge 22, containing an endless film strip and an endless magnetic tape having a sound track and a control track, operates a start switch 69 on insertion into a housing 21 which contains a tape drive mechanism 88-92, a magnetic head 85 with associated playback equipment, an optical system including a lamp 75 and a projection lens 76, film-cooling means 81, and a film transport device, consisting e.g. of claws 110 actuated by a solenoid 104, arranged to engage an exposed portion of the film strip and to advance the film strip in response to a signal picked up by the head 85 from the control track of the tape. The tape and film are carried on respective reels in the cartridge 22 and are twisted in feeding from the centre, Figs.10 to 13 (not shown). Back-projection on to an internal screen 25 is effected by means of mirrors 94, 95, 96. If the first mirror 94 is pivoted to a horizontal position it uncovers an aperture allowing projection on to an outside screen and operates a switch 103, Fig.4, to brighten the projector lamp 75. Manual controls for focusing 32 and framing 33 are provided.
Patent GB-1297059-A (GB)
IPC: B41J2/395
Filed: 1970-03-11
Abstract: 1297059 Selective printing HONEYWELL Inc 11 March 1970 [14 May 1969] 11756/70 Heading B6F An electrographic print head 10 includes a plurality of rows of electrodes 12, the electrodes of successive rows being staggered with respect to each other.