baber/WOPTO huggingface dataset:
Patent GB-716629-A (GB)
Title: Improvements in or relating to ethers of melamine-formaldehyde condensation products
Inventor: MALINOWSKI THEODORE P
IPC: C08G12/42
Filed: 1951-12-05
Abstract: An etherified melamine-formaldehyde condensate containing 1-3 residues of dihydro idcyclopentadienyl alcohol and 5-2 residues of a lower aliphatic alcohol containing 1-8 carbon atoms is made by reacting a low molecular weight melamine-formaldehyde condensate etherified with the lower alcohol in an amount containing 1 mol of combined melamine with 1-3 mols of dihydro dicyclopentadienyl alcohol.  Reaction is performed at 80 DEG -250 DEG C. in presence of an acid catalyst (e.g. phosphoric, sulphuric, toluene sulphonic, benzene sulphonic, formic, acetic or chloroacetic acids or their acid esters) and preferably under reduced pressure.  The mixed ethers are compatible with drying or semi-drying oils, e.g. linseed, tung, oiticica, dehydrated castor, perilla, poppyseed, sunflower seed, cashew nutshell, cottonseed, soya bean, sesame or rapeseed oils or may be made compatible therewith by heating under reflux, if desired in presence of a solvent. 5-100 parts of the mixed ethers may be combined with 100 parts of alkyd resins modified with linseed, tung, oiticia, perilla or dehydrated castor oils or oil acids.  Coating compositions containing the mixed ethers may also contain metallic driers e.g. cobalt and nickel naphthenates and resinates, dyes, pigments, fillers and natural or synthetic resins.  In examples (1)-(3) resins made by reacting a pentamethyl ether of methylol melamine with dihydro dicyclopentadienyl alcohol in presence of methyl phosphoric acid were (1) dissolved in a mixture of xylol and butanol and combined with bodied linseed oil or with short or long oil length alkyds; (2) dissolved in ethyl acetate or tung oil; (3) dissolved in benzene and heated with bodied linseed oil to yield a resin soluble in xylol; (4) a resin made by heating a pentabutyl ether of methylol melamine with dihydro dicyclopentadienyl alcohol was combined with tung oil or with long or short oil length alkyds and a metallic drier to form a coating composition.
Patent GB-1590841-A (GB)
Title: Apparatus for converting concentrated solar energy into heat energy
IPC: F24S23/30
Filed: 1977-07-07
Abstract: Situated in the region of the focal line of an elongate liquid lens (22) are two concentrically arranged pipes (36, 38). The outer pipe (36) is transparent and the inner pipe (38) absorbs the concentrated solar radiation incident upon it. Both pipes are arranged in a cutout (44) of a collector (24). The collector is connected to the liquid lens by a frame linkage (30, 50, 66). The frame linkage is pivotable about two axes (52, 60) in order that the liquid lens can track the position of the sun. The liquid lens comprises a lower plane transparent plate (28) and a curved transparent plate (26). Situated between the plates is a liquid (31) which lets the solar rays through. A liquid, which has a lower boiling point than the liquid which is guided through the inner pipe, is guided through the outer pipe. The liquid in the outer pipe serves for hot-water preparation while the liquid in the inner pipe serves for preparing steam. <IMAGE>
Patent GB-1155612-A (GB)
Title: Curl Resistant Laminate
Inventor: JOHNSON BRUCE EDWARD
IPC: C09J7/38
Filed: 1966-06-27
Abstract: 1,155,612. Decorative laminate. MINNESOTA MINING & MFG. CO. 27 June, 1966, No. 28642/66. Heading B5N. A decorative sheet assembly comprises a decorative polymeric foil 11, a layer of pressuresensitive adhesive (12) and a releasable paperbased-liner (13), the liner being provided with a release coating (15) on the surface which contacts the adhesive, in which the decorated foil has a lower total hygroexpansion than the removably adhered liner, the exposed surface of the liner is provided with a substantially continuous moisture vapour retardant polymeric skin, and the adhesion of the pressure-sensitive adhesive to the liner and the constant stress modulus of the pressure-sensitive adhesive are chosen so that the assembly remains substantially flat when subjected to marked humidity change. The polymeric foil may be polymethyl methacrylate, polyvinyl chloride, polystyrene, a polyimide, a polycarbonate or biaxially oriented polyethylene terephthalate. The release coating is preferably a dimethylpolysiloxane cured through silanic hydrogen and the vapour retardant polymer may be a vinylidene chloride - acrylonitrile polymer, a polyester, polyethylene or ethyl cellulose. Suitable pressure sensitive adhesives are copolymers of 2-ethyl hexyl acrylate with acrylic acid, a phenol-formaldehyde resin modified copolymer of 2-ethyl butyl acrylate with acrylic acid, a copolymer of methyl iso-amylacrylate with fusel oil acrylate, a blend of butadiene-styrene rubber with natural rubber or a polyisobutylene.
Patent GB-837299-A (GB)
Title: Method of coating the interior of metal cylinders
IPC: C23C24/10
Filed: 1956-09-19
Abstract: The inside of a hollow steel cylinder is lined with a harder nickel-base alloy, which has a lower melting point than the steel and whose properties are adversely affected if contaminated with iron, by charging the finely divided alloy into the cylinder, capping the cylinder ends, rotating the cylinder slowly to distribute the alloy particles longitudinally, then rotating the cylinder more rapidly to hold the particles against the inside surface over the whole circumference by centrifugal force, maintaining a non-oxidizing atmosphere in the cylinder and inductively heating the cylinder, a short annular section at a time, below the melting point of the alloy while still rotating the cylinder to sinter the alloy particles and bond them in place. In an example particles of an alloy of the composition, in per cent by weight: .Ni.65-75 .Cr.13-20 .B.2.75-4.75 impurities including Si, Fe, C up to 10 is sintered in the range 1850-1900 DEG F. in a hydrogen atmosphere.
Patent GB-1236746-A (GB)
Title: Automatic sample analysis
IPC: G06K7/06
Filed: 1968-06-17
Abstract: 1,236,746. Automatic analysis. BODENSEEWERK PERKIN-ELMER & CO. G.m.b.H. 17 June, 1968 [24 June, 1967], No. 28768/68. Heading B1X. [Also in Division G4] Automatic analysis apparatus comprises turntable 1 carrying holders for sample vessels 3 and associated radially spaced reagent vessel holders 5, 6 through a reaction station where means 7 adds a quantity of each sample to reagent in the corresponding reagent vessels, holders 4 carried by the turntable for carriers of machine-readable sample identification information, an information-reading machine which may comprise sensing elements 12 co-operating with holes in the information carrier, and recorder 13 for recording the sample information so read in correlation with the result of the analysis of the sample-reagent mixture by means of photometer 11. The information carrier 4 may be a punched card which is inserted into its holder when the samples are introduced into vessels 3. The sample vessel holder 2 is then placed on the turntable. Reagent may be introduced into the reagent vessels by dosing pumps 8, 9. At the read-out station the sensing elements are drawn across card 4. When a sprocket wheel at the end of an element 12 engages a perforation in a card 4, a pulse is sent to a counter circuit (Figs. 7, 8, 9, not shown).
Patent GB-1304064-A (GB)
IPC: C07F9/62
Filed: 1970-06-15
Abstract: 1304064 Thiophosphamide derivatives of isoquinoline alkaloids LVOVSKY GOSUDARSTVENNY MEDITSINSKY INSTITUT 15 June 1970 [16 June 1969] 28828/70 Heading C2P Novel compounds of Formula I: where X is A-CH 2 -CH 2 - or the group and A is a group of Formula II: where R, R 1  and R 2  are hydrogen or methoxy, or R 1  and R 2  together or R and R 1  together form a -O-CH 2 -CH 2 -O- group, R 3  is hydrogen, hydroxy or methyl, R 4  and R 5  are hydrogen or a dihydro group and R 6  is hydrogen, or R 4  and R 5  together or R 5  and R 6  together form part of a fused substituted naphthalene ring, may be prepared by reacting thiophosphamide with an isoquinoline alkaloid of Formula III or with a mixture of these alkaloids in an organic solvent at the boiling-point thereof. The compounds of Formula I may be used as the active ingredients in medicinal preparations for treating malignant tumours.
Patent GB-1293623-A (GB)
Title: Safety enclosure
Inventor: DOOK JOHN MACDONALD LAWSON
IPC: E06B11/00
Filed: 1970-06-15
Abstract: 1293623 Safety enclosures JOHN LEWIS & CO Ltd 15 June 1971 [15 June 1970] 28951/70 Heading E1B A safety enclosure for the edge of a mezzanine floor comprises front 21 and 24 and rear 22 and 25 rails connected to opposite ends of rotatable shafts 19 and 23 respectively so that when the shafts 21 and 24 close the front of the enclosure the rear is open and vice versa, the rotatable shafts together with stanchions 11-14 on which they are mounted defining the enclosure. The front rails are spring urged to the open position but held in place by catcher 43 which may be released by pulling a chain 46. In an alternative embodiment the rails 21-25 are held by in their non-obstructing spring catches mounted on the stanchions 11-14. The meeting ends of the rails 21 and 24 may be interconnected by a cylindrical sleeve mounted on one and spring urged to engage the other. An enclosure may be defined by a single rotatable shat, front rail and rear rail, the other side being formed by a wall.
Patent GB-389764-A (GB)
Title: A new or improved hair curler
IPC: A45D2/12
Filed: 1932-10-17
Abstract: 389,764. Hair-curling appliances. COAKLEY, A. A. and COAKLEY, F., 88, Woodstock Avenue, Golders Green, London. Oct. 17, 1932, No. 28963. [Class 131.] A hair waving and curling device comprises a core 10 around which a damp tress is wound, an extension piece 13 with respect to which the core is axially rotatable, and a clamping member 16 pivoted to the extension piece about an axis transverse to the axis of the core, the clamping member comprising an open-sided cage adapted to enclose the core, and the walls of which may be sprung to and from each other to adjust the grip of the cage on the tress. The extension piece 13 is provided at the inner end with a flange over which is swaged the end 15 of a cap 11 secured to the core. The cage comprises a back member 17 connected by spaced ribs 19 to two front members 18, the member 17 being extended to form wings 21 pivotally connected to the piece 13 by a rivet 22. The core 10 may comprise a tube provided with perforations to facilitate the drying of the tress, and may be provided with a spring finger 25, the end of which engages in a recess 26, for for securing the end of the tress. The core projects beyond the end of the cage to afford a finger grip for effecting relative rotation of the cage and the core to tighten the wound tress.
Patent GB-265316-A (GB)
Title: Improvements in or relating to ignition apparatus for internal combustion engines
IPC: F02B1/04
Filed: 1925-11-17
Abstract: 265,316. Woodhead, S. Nov. 17, 1925. No Patent granted (Sealinq fee not paid). Sparking-plugs.-An intermediate piece, or ' adaptor,' a may be separate from plug or cylinder, or may be made integral with either. It may be ribbed externallv. Reference has been directed by the Comptroller to Specifications 141,877, 216,391, 222,782, and 224,812
Patent GB-749027-A (GB)
Title: Improvements in hydraulic copying or tracing valve units for copy machines
Inventor: LUND JOHN
IPC: B23Q35/36
Filed: 1953-10-21
Abstract: 749,027. Fluid-pressure servomotor-control systems. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd. Dec. 2, 1954 [Oct. 21, 1953], No. 29059/53. Class 135. A hydraulic tracing valve unit for a copying- machine, the operation of which is controlled by a stylus or tracer moving over a pattern, comprises a housing 1, Fig. 1, for a first valve consisting of a fixed sleeve 14 within which is a slidable sleeve 12 containing a plunger 16 to which a dither motion is applied by an electromagnet 22, 23, and a second valve consisting of a fixed sleeve 10 and a slidable sleeve 8, the sleeves 8, 10 and the stylus 6 being held in abutment by a spring 15. The first valve controls the flow of pressure liquid, e.g. oil, from a port 30 to ports 37, 38 connected to a servomotor or jack 57, Fig. 2, which regulates the vertical position of a table 52 supporting the pattern 61 and the workpiece 62. This valve also controls the flow from the jack to a port 31 leading to a pump and reservoir 51. The second valve controls the flow from the port 30 and passage 31 in the housing to a pipe 36 connected via a reversing valve 63 to a jack 53 which reciprocates the table 52 horizontally. The armature 22 of the electromagnet is oscillated by halfwave rectified current applied to the coil 23, the oscillation being transmitted to the plunger through a cap 20 on the plunger held against the armature shaft by a spring 19. The oscillation of the plunger creates pulses in the oil supply to the jacks.
Patent GB-907803-A (GB)
Title: 2-3, 3-4-diseco yohimbane derivatives and their preparation
IPC: C07D401/06
Filed: 1958-11-14
Abstract: The invention comprises the alkyl esters of 18b -acetoxy-10,17a -dimethoxy - 16b  - methoxy-carbonyl-2,3-3,4-diseco-D 4(21) - 20a  - yohimbene-3-oic acid, particularly the methyl ester, and a process for their preparation by reacting 5-methoxytryptamine with an alkyl ester of 1b -carboxymethyl - 2b  - methoxycarbonyl - 3a  - methoxy-4b -acetoxy-6b -formylcyclohexane in an inert solvent, preferably tetrahydrofuran or methylene chloride.  Optical isomers of the novel compounds may be obtained by use of the appropriate enantiomorphic cyclohexane.  An example details the preparation of the methyl ester. Specification 868,475 also is referred to.
Patent GB-652620-A (GB)
Title: Wheel springing
IPC: B60B9/00
Filed: 1947-10-31
Abstract: 652,620. Vehicle wheels. METALLWERKE AKT.-GES. Oct. 31, 1947, No. 29170. Con. vention date, Sept. 23. [Class 144 (i)] In a resilient hub, particularly for cycle wheels, the outer hubshell 21 is mounted through ball-bearings 24 on an inner sleeve 10 journalled on a spindle 9 which is eccentrically mounted on a cranked piece 3 adapted to rock on the main (fixed) axle 1. The displacement of the sleeve 10, through road shocks transmitted to the hub 21, deviate only slightly from vertical movements through the centre-line of the axle 1, are cushioned by rubber &c. blocks 27 fitted between recessed nuts 29, threaded on the sleeve, and bushes 6 on the axle 1.
Patent GB-152603-A (GB)
Title: Method of and apparatus for making coffee
IPC: A23F5/26
Filed: 1920-10-15
Abstract: 152,603. Zorn, W. M. Oct. 15, 1919, [Convention date]. Stainers.-A coffee infusion is made by forcing hot water through a film of finely-ground coffee by centrifugal action. A double perforated vessel 9 containing a bag 18 of fabric or filter paper, is mounted on a shaft 4 with driving-pulley 5 in a vat 1. Mounted on the vat 1 are lugs 20 with tubes 21 slotted at 27 carrying inner rotary and slidable tubes 23, to the lower ends of which are swivelled sprocket-wheels 24, under which, and over second sprocket-wheels 32 with handles 33 pass counterweighted chains 34. Brackets 25 on the upper ends of the tubes 23 carry respectively the coffee-distributor 45 and hotwater distributor 37. The former comprises a hopper 45 with central sleeve 53 carrying a scraper 56. Fig. 3, and feed-screw 55 driven through gearing 54 by a motor 46, which also drives a propeller 52 on shaft 50. A sleeve 58 surrounds the lower part of the hopper. and can be lowered on to the propeller to prevent the escape of coffee. In operation, finely-ground coffee is placed in the hopper 45 which is then swung over and lowered into the vessel 9. The sleeve 58 is raised by links 59, 60, the motor is switched on and coffee falling on to the propeller is thrown in a film on to the surface of the bag 18 which is rotated at high speed. The hopper 45 is removed from the container, and the vessel 37 containing hot water is swung from the position shown in dotted lines, Fig. 2, into that shown in full lines, and is lowered into the revolving vessel 9 until the valve stem 42 strikes the bottom, and lifts a ball-valve 43 and allows the water to flow down a tube 38 to nozzles 44 which deliver it on to the film of coffee on the filter bag 18 through which it is forced by centrifugal action into the vat 1 from which it is removed as required.
Patent GB-461095-A (GB)
Title: Improvements relating to contacts for electric switches and circuit breakers
IPC: H01H1/42
Filed: 1935-10-23
Abstract: 461,095. Heavy - current switches. ELLISON, Ltd., G., ELLISON, G., and SWANN, B. C. Oct. 23, 1935, No. 29230. [Class 38 (v)] In heavy-current switches of the kind in which a pair, or a plurality of similar pairs, of independently pivoted contact arms a, each carrying a contact tip d, are urged towards each other by a spring or springs m, the contact tips being adapted to receive between them a relatively movable contact bar i, the arms of each pair are in the form of overlapping bellcrank levers and are mounted on separate pivot pins j, k arranged parallel with each other, the pivot pin of each arm or corresponding set of arms passing through apertures l in the other arm or set of arms so as to serve as a stop for the latter arm or arms. In the arrangement shown, a plurality of pairs of arms is provided, and some of them, which serve as arcing contacts, are made longer than the others and are adapted to engage a removable arcing tip n carried at the end of the bar i. The arcing tip n may be made of brass, and the bar i of copper.
Patent GB-172817-A (GB)
Title: A piece of furniture convertible for use as a bed, a couch, a bathchair or the like
IPC: A47C17/16
Filed: 1920-10-18
Abstract: 172,817. Murray, J. L. W. Oct. 18, 1920. Bedsteads convertible into seats; invalids' bedsteads; bedstead and seat adjustments.-A bedstead convertible into a couch, bath-chair, &c., and such as is described in Specification 104,576, is provided with subsidiary leg and foot members B<5>, B<6>, jointed at B<7> and pivoted to the central structure A, together with gearing for adjusting the subsidiary leg and foot members independently of the main leg and foot members B, B'. The gearing preferably consists of a handled shaft M carrying worms N engaging toothed sectors N' on levers N<2>, the levers carrying rollers N<3> engaging races on the underside of the member B<5>. Struts P, P<1> are provided for holding the members A<3> B, B' in horizontal position, and when these members are adjusted to convert the device into a bath-chair, the strut P' is lifted by the gearing C-C<6> and the cord Q<1>, the connecting-rod P<2> of the struts P serving as a handle.
Patent GB-1119492-A (GB)
Title: Improvements in and relating to synchronous electric motors
IPC: H02K21/18
Filed: 1965-07-12
Abstract: 1,119,492. A.C. motors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 12 July, 1965 [15 July, 1964], No. 29367/65. Heading H2A. In a synchronous electric motor, having a stator 1 energized by a coil and a permanent magnet rotor 2, the rotor is axially divided into at least two parts 3, 4 each having North and South poles and the angle subtended between like poles of adjacent parts is 90 degrees. Selfstarting may be provided by arranging the resultant magnetic field of the rotor in the rest position to be at least 5 degrees, preferably 90 degrees to the direction of the stator field. As shown this is obtained by auxiliary magnets 5, 6 connected to axial projections on the rotor. In an alternative arrangement (Fig. 2, not shown), the rotor consists of three parts, the outer two (12, 14) having, a magnetic field at 90 degrees to the field of the central part (13). An auxiliary magnet (15) is attached to the rotor and an iron yoke (18) surrounds the auxiliary magnet (15) so as to provide the starting arrangement.
Patent GB-168569-A (GB)
Title: Improvements in small arms
IPC: F41A35/02
Filed: 1920-10-19
Abstract: 168,569. Auto-Ordnance Corporation, (Assignees of Payne, O. V.). Sept. 2, 1920, [Convention date]. Breech actions, sliding breech-block; protecting from dust and rain.-Relates to guns having a sliding rotary breech-block and consists in a manually-operated shutter, rotatable about the bolt and within the receiver, for closing the slot in which the handle or other part of the breechblock works. The invention is shown applied to an automatic rifle of the kind decribed in Specification 162,962 having the bolt handle sliding in a slot 34 and the lug 26 of the firing-pin sliding in a slot 35. These two slots can be closed by a rotary shutter 38, shown detached in Fig. 5, which fits inside the receiver around the breechblock. The shutter is rotated by an end disc 43, Fig. 8, having notches engaging lugs 41 on the shutter and provided with an operating handle. When the shutter is rotated, a shoulder 47 thereon engages in front of the lug 26 of the firing pin and forms a safety device. Resistance to the rotary unlocking movement of the bolt is offered by a cam pusher 49, as described in Specification 168,579.
Patent GB-710304-A (GB)
Title: Improvements relating to elevators or conveyors
Inventor: PINKERTON LESLIE GRAHAM
IPC: B65G17/16
Filed: 1951-12-17
Abstract: 710,304. Endless conveyers. HENDY, Ltd., P. March 17, 1953 [Dec. 17, 1951], No. 29508/51. Class 78 (1) A conveyer for powdered or granular material comprises a number of flat-topped cups which are pivoted to an endless driving chain in such a way that when loaded they will automatically, under the effect of gravity, assume a position in which their tops are substantially horizontal irrespective of the angle of the chain, and the angular position of the cups is positively controlled over a portion of their travel at each end of the operative run of the chain so that each cup scoops up and discharges a load at the appropriate points. Cups 11 are pivotally mounted between a pair of endless chains 16 passing round sprockets 25, 29 mounted on shafts 26, 30 at the ends of a jib arm 1 pivotally mounted on a chassis 2 and adjustably supported by a pair of parallel struts 3 provided with rollers 5 bearing against the arm 1. Each cup is controlled by a pair of helical springs 17 acting in opposition to one another, the springs being relatively weak so that when loaded, the cups hang as shown along the upper run of the chains. As each loaded cup approaches the end of the arm 1, its side 13 engages a rubber disc 35 freely mounted on the shaft 30 and is inverted to discharge its contents. As an empty cup moves away from this disc, it is turned by the springs 17 to the position shown in the lower run in Fig. 1 so that when it reaches the lower end of the arm 1 its side 14 is approximately tangential to a disc 36 freely mounted on the shaft 26. As it rolls round the disc its mouth turns to a horizontal position whereby the cup performs a scooping action as it passes through a hopper 37 containing the material to be loaded so as to fill itself. The struts 3 are supported by wire ropes 6 passing round pulleys 7, 8 on the struts and jib arm respectively and connected to a winding spindle controlled by a hand wheel 9.
Patent GB-1495066-A (GB)
Title: Burner heads suitable for oil burners and to burners provided with such heads
IPC: F23D11/40
Filed: 1975-07-14
Abstract: 1495066 Burners J NYEGAARD 14 July 1975 [15 July 1974] 29515/75 Heading F4T A burner head for an oil burner comprises a tubular body for air flow, a turbulator 2, and an oil-fuel-nozzle 3, and a ring 5 which provides an annular pocket 10 so as to deflect air into the burner flame. The turbulator 2 includes vanes 9 which form air-slots, and a central circular or polygonal aperture may be axially adjustable to vary the dimension of the passage 10 and may include slots 12, 11, which thus provides for a secondary air chamber 13. Oil nozzle 3 may also be adjustable, and a plurality of slots 14 may be provided so as to adjust ring 5, and therefore vary passage 10.