baber/WOPTO huggingface dataset:
Patent GB-282200-A (GB)
Title: Improvements in or in connection with the head lights and steering gear of motor vehicles
IPC: B60Q1/124
Filed: 1926-11-13
Abstract: 282,200. Hindle, J. B. Nov. 13, 1926. Vehicle lamps, directing; anti-vibration devices. - In means for directing motor-vehicle head-lights from the steering-gear, the rotatable lamp stems p are provided with clips n or other fixed collars having arms v connected by a link x, one of the clips n being provided also with an arm m connected by links j, h with a slidable rack rod d engaging a toothed sector provided on the worm-shaft a of the steering-gear or on the downwardly-directed steering-arm carried by the worm-shaft. The sector c may be secured to the shaft a by a bolt b or the boss of the steering-arm may be provided on its upper sector with teeth. The stems p may be mounted on ballbearings s in fixed brackets r and provided with anti-vibration springs t. The Provisional Specification states also that a link and lever device may be used instead of the sector and rack.
Patent GB-971872-A (GB)
Title: Improved self-levelling device for receiving,storing and dispensing articles
IPC: B66F9/20
Filed: 1961-08-09
Abstract: 971,872. Self-balancing platforms; spring drums. AMERICAN MACHINE & FOUNDRY CO. Aug. 9, 1961 [Aug. 16, 1960; Oct. 26, 1960], No. 28838/61. Heading B8B. A self-levelling dispenser comprises a supporting platform 12, Fig. 1, guided for vertical movement by rollers 48 engaging vertical tracks 18 on a supporting base 10 and resiliently held in a position to maintain the top of the supported articles, material &c. at a constant height by means of flexible cables or bands 46 passing over pulleys 37 associated with a torsion spring. In one example the flexible bands 46 comprise steel strip fixed to an adjustable attachment 41 on the machine frame 40a, which may be rotated by a handle 43 to wind strip 46 on or off the pulley 37 to vary the effective radius arm according to the weight and dimensions of articles to be supported. The required setting is indicated by graduations 57 adjacent a slot 56 through which the wound strip 46 is visible. The handle 43 is locked in position by a pin (not shown). The torsion spring device comprises a coiled spring 30, Fig. 5, contained within a fixed tubular housing 22 forming part of the support 21 for the platform 12. One end of the spring 30 is attached by a pin 31 to a shaft 25 carrying the pulleys 37. The other end of the spring 30 is rotatably adjustable for varying the spring tension according to the load to be supported. For this purpose the spring is attached to a bush 29 rotatable by pins 32, Fig. 6, projecting through a slot 36 in the housing 22 and engaged in alternative recesses 33. In a modification, a similar spring housing 128, Fig. 11, may be mounted on the support frame 126 and supports the platform through cables 150 wound over conical drums 144 for varying the moment arm throughout the range of movement. With this arrangement the cable ends 150b, Fig. 13, are coupled to reels 156 which are rotatably adjustable by a shaft 157 on the platform 112 for varying the range over which the radius of the drums 144 operate according to the weights and dimensions of the articles to be supported. Notched members 122 may be interchangeably attached to the vertical tracks for engagement by the rollers at predetermined levels so that the carriage tends to come to rest at exact positions.
Patent GB-538360-A (GB)
Title: Means for preventing leakage of fluid along the interior of electric cables
IPC: H01B13/22
Filed: 1939-10-27
Abstract: 538,360. Cables. BERESFORD & SON, Ltd., J., and GOLD, R. L. Oct. 27, 1939, No. 28857. [Class 36] Means for preventing leakage of fluid along the interior of a cable or cables comprises the combination with a bared part of the conductor which has been rendered impervious by tinning or otherwise, of a rubber sleeve moulded round the conductor after the latter has been coated with a binding agent. The invention is applicable to a cable-end or to intermediate parts of a cable, and can also be applied to joints between cable-sections. Fig. 1 shows a 3-core cable passing through the stuffing-box b of a submersible-pump motor. Insulation e is removed from the outer sheath and each inner sheath d is removed from its core c so that the sheaths project unequal distances from the main insulation e. The cores c are rendered impervious by tinning so as to fill the interstices between the strands. With larger cores, one or more inner strands may be replaced by a solid rod g with pointed ends, before tinning. One or more perforated or slotted discs h of cured or partly cured rubber are fitted over the cores to space them and a vulcanized-rubber end block i applied to the free ends. A sleeve k of uncured rubber is then moulded round and between the cores and over the sheath-ends d, perfect adhesion between it and the cores and a metal sleeve m being obtained by covering'the latter with a binding agent such as uncured hard rubber or a solution or dispersion of hard rubber or rubber derivatives. The whole is then vulcanized. To make a seal between the cable and box b, as in Specification 538,357, [Group XXVI], jointing material n is placed between metal pressure rings p, q, and pressure applied by an annular nut s. In Fig. 3 the joint between a 3-core round cable, a and a 3-core flat cable a<1> has a seal applied by treating, as already described, the insulation at the ends of both cables, the cores being then spliced. together and tinned. The core-spacers comprise a wrapping of a composite sheet comprising a sheet u of cured rubber and one t of uncured rubber next the core. The process is then carried out as above described, except that the sleeve k k envelops the ends of the main insulation of both cables. The Provisional Specification states also that endwise pressure may be applied to the rubber in moulding in order to fill all interstices.
Patent GB-265112-A (GB)
Title: Improvements in or relating to washing and separating apparatus for coal and other minerals
IPC: B03B11/00
Filed: 1926-11-16
Abstract: 265,112. Delcuvellerie, E. Nov. 16, 1926. Washing. - In a coal &c. washing-apparatus provided with a rotary hollow-drum device for removing waste material, the drum casing 1 has a water inlet 13 and an air outlet; the drum 7 rotates clockwise, so that after the waste material is dropped through the aperture 12 and outlet 6, the aperture is presented to the water inlet 13. Water then enters the drum, the air passing out by ports 15, 16, or by the aperture 12 and pipe 17 with a valve 18.
Patent GB-1440292-A (GB)
Title: Thermometric element
IPC: G01K11/12
Filed: 1974-06-28
Abstract: 1440292 Liquid crystal compositions ASHLEY-BUTLER Inc 28 June 1974 [19 June 1973 2 July 1973] 28888/74 Heading C4X [Also in Division G1] A thermometric element, e.g. a clinical thermometer comprises a plurality of separate compositions each of which contains a first cholesteric liquid crystal system and a second component which is chemically inert and miscible with the first system, wherein the compositions contain identical first systems and second components but the percentage weight of the second component varies from composition to composition, there being a predictable variation, preferably linear, in the phase transition temperature and the percentage weight of the second component. The liquid crystal system comprises one or more materials which exhibit a cholesteric phase transition separately or in combination, the colour change for any given system being identical although occurring at different temperatures for different compositions. Where a large temperature range is required more than one liquid crystal system, and hence colour change, is required. The greater the percentage weight of the second component, the lower is the "clearing point" or phase transition temperature. The preferred additives are hydrocarbon fractions, e.g. petrolatum, in particular mineral oil fractions having boiling points of at least 150 F., and semisolid fractions such as petroleum jelly. The additive may also be an ether, alcohol, ester, amine, ketone, nitro organic compounds, pyrrole or polymonochlorotrifluoroethylene, a chlorinated paraffin or polyisobutylene. Many examples of liquid crystal systems are given in the Specification being mixtures of various cholesterol esters.
Patent GB-850503-A (GB)
Title: Electrical comparator network
IPC: G06J1/00
Filed: 1958-09-09
Abstract: 850,503. Digital electric calculating apparatus. WESTERN ELECTRIC CO. Inc. Sept. 9, 1958 [Sept. 23, 1957], No. 28905/58. Class 106 (1). An electrical network for comparing two binary numbers, comprises a plurality of comparison circuits which, when signals denoting equivalent binary digits of the numbers are applied simultaneously, provide simultaneous outputs indicative of the relative magnitude of each pair of compared digits, and a plurality of output circuits each connected to the output of a respective comparison circuit for simultaneously producing outputs collectively indicative of the exact magnitude of the difference between the two binary numbers. The comparator network shown comprises independent stages A, B ... N to which are applied simultaneously the digits a 1 , a 2  ... an and b 1 , b 2  ... b n  of the two binary numbers to be compared. Each stage comprises a pair of AND gates such as 111, 112 and a pair of inverters such as 113, 114 so arranged that if the a-digit is "1 " and the b-digit " 0 " a signal is applied to a resistor R A , R B  ... R N  connected to positive output lead 141<SP>1</SP> while if the a-digit is " 0 " and the b-digit is "1" a signal is applied to the associated resistor connected to negative output lead 1421. The resistors have values weighted according to the corresponding binary powers, thus forming a. digital-toanalogue converter 118, and the positive and negative signals on leads 141<SP>1</SP>, 142<SP>1</SP> are combined algebraically in circuit 150 whereby a voltage signal is obtained on output lead 151 corresponding to the sign and magnitude of the difference between the two numbers. In a modification (Fig. 2, not shown), the outputs from any stage producing a mismatch are made dependent on the most significant digit mismatch, the operative rules being given in the Specification; this enables output signals all of the same sign to be obtained. The comparator may be employed for address selection in a C.R.T. storage system as described in Specification 836,235. Specification 843,723 also is referred to.
Patent GB-1369680-A (GB)
Title: Rotary fluid pumps and motors
IPC: F04C14/06
Filed: 1971-06-30
Abstract: 1369680 Rotary positive-displacement machines ANDREW FRASER & CO Ltd 30 Sept 1971 [1 June 1971 21 June 1971] 18232/71 and 28924/71 Heading F1F In a pump, or motor, pressure-loading of radially sliding blades 16 lodged in stator members 12, 13 and co-operating with generally elliptical rotors 14, 15 is controlled by a device comprising a manually-operated piston 20 and spindle 21, which when depressed shut off the pressure-loading spaces 18A, 18B from a region of low-pressure e.g. a reservoir or the lowpressure side of the machine, and pressurize said spaces. An annular groove 29 communicates with said region through a check valve 28. The spindle 21 fits slidingly in an inner portion of a stepped hole 24, which is formed in a plate 11 and intersects a bore 25 communicating with said region. Annular grooves 26 inter-connect the hole 24 and bores 27. When the piston and spindle are raised fluid is drawn through the valve 28 and the spaces 18A, 18B are connected to said region by way of the bore 25 so that the blades are unloaded and thus can be retracted to inoperative positions by the rotors. When the piston and spindle are depressed the spaces 18A, 18B are cut off from the bore 25 by the spindle and pressurized by the piston so as to restore the blades to their operative positions. Subsequently the blades are loaded by pressure transmitted to said spaces from the high-pressure side. The rotors are disposed 90 degrees out-of-phase and the stator members are fixed to the plate 11. A second embodiment, Fig. 3 (not shown), differs in that the piston is replaced with a "valve spool" that controls the flow of blade pressure-loading fluid from an independent source. In a third embodiment, Fig. 4 (not shown), the control device can be located remotely from the rest of the machine, the lower portion of the spindle is dispensed with and the piston when depressed cuts off the pressure-loading spaces from the low-pressure region. A fourth embodiment, Fig. 5 (not shown), is intended to operate as a motor and the piston is again replaced with a valve spool, which controls two ports communicating with the lowpressure region and an independent source of pressure-loading fluid, respectively. A fifth embodiment, Figs. 6 and 7 (not shown), has a single rotor with six lobes, the pressure-loading control device being similar to that of the fourth embodiment.
Patent GB-868855-A (GB)
Title: Improvements in or relating to methods for the production of polymers
IPC: C08F291/18
Filed: 1957-09-13
Abstract: At least one ethylenic monomer which is capable of being polymerized by free-radical polymerization is polymerized on the corresponding polymer by subjecting the polymer to ionizing radiations such as gamma rays and then adding further polymer chains having substantially the same quantitative composition as the starting polymer.  Irradiation may be effected on the polymer alone prior to contacting with the monomer, or on the monomer-polymer mixture.  The Specification refers to the polymerization of tetrafluoroethylene on polytetrafluorethylene, of styrene on polystyrene, of methyl methacrylate on polymethyl methacrylate, of ethylene on polyethylene, and of a mixture of styrene and methyl methacrylate on a styrene-methyl methacrylate copolymer.  There may be incorporated a small amount of a chain transfer agent or a cross-linking agent, and one example describes the irradiation of a polystyrene film swollen with styrene containing 1% of divinyl benzene.
Patent GB-603856-A (GB)
Title: Improvements in land cultivating appliances
IPC: A01B17/00
Filed: 1945-11-01
Abstract: 6 0 3,8 5 6. Agricultural implements. FRANCIS, R. Nov. 1, 1945, No. 29009. [Class 6(i)] An attachment for the tractor of a tractor-drawn plough assembly comprises a U-shaped frame 11 secured to the tractor frame and carrying a disc tool 22 mounted for rotation about a horizontal axis inclined to the direction of travel of the machine so that it clears a path for the ploughshare. The disc tool is rotatablv mounted on the horizontal limb of an L-shaped stem 20 carried in a bracket 19 on the front of the frame 11 which is secured to the tractor chassis to extend beneath and in front of the radiator 15.
Patent GB-676677-A (GB)
Title: Improvements in and relating to means for coupling assembled units to provide a linearly extended member
IPC: F16B21/18
Filed: 1950-11-27
Abstract: 676,677. Rod joints. PORTER, Inc., H. K. Nov. 27, 1950 [Dec. 22, 1949], No. 29018/50. Class 99 (i). [Also in Group XXV] A spigot-and-socket. joint comprises a transverse locking pin 38 passing through the socket 16 and spigot 26, and a resilient spilt ring 34 which engages grooves 32, 30, and 44 in the socket, spigot, and pin respectively, the groove 32 being of a size to allow expansion of the ring when the pin is knocked out and the spigot withdrawn.
Patent GB-290187-A (GB)
IPC: C06F1/08
Abstract: 290,187. Aktiebolaget Siefvert & Fornander. May 9, 1927, [Convention date]. Matches.-Matches ejected from a hundred or more rows of the carrier band of a match machine during one collecting period fall into boxes 1 which are supported by a carriage having wheels 2 engaging rails 3 to allow of lateral movement from the machine to a position opposite loose boxes 4 supported on brackets 6 rotatable on a shaft 5. When filled the boxes 1 are brought against the loose boxes which are turned into the vertical position for reception of the matches ejected from the boxes 1 by pushplates 8 operated by a lever 9. The loose boxes are then removed and replaced by empty boxes and the boxes 1 returned to the machine. A sliding plate 10 collects matches ejected from the carrier during the operation.
Patent GB-949428-A (GB)
Title: Improvements in or relating to valve gear
IPC: F01L1/14
Filed: 1962-07-30
Abstract: 949,428. Valve gear. FORD MOTOR CO. Ltd. July 30, 1962 [Sept. 26, 1961], No. 29100/62. Heading F1B. An I.C. engine with pivotally mounted rocker arms 11, Fig. 1 has push rod stabilizing means comprising a push rod guide 41 having open-ended slots 44 Fig. 2, carrying moulded plastic bearings 51 which stabilize the pushrods 24 in a direction parallel to the longitudinal axis of the engine. In another embodiment a horse-shoe shaped bearing is inserted in the slots 44. The bearing may be of nylon, p.t.f.e., acetal or phenolic resin and the bearing material may be attached to the push rod guide by dipping. Lubricant from a pressure source e.g. a hydraulic tappet, is supplied through the push rod 24, and holes 28a, 28, to lubricate bearing 17. The push rod guide may have troughs 47 to assist draining of lubricant and baffles 46 to shield the poppet valves from wetting by engine lubricant.
Patent GB-814652-A (GB)
Title: Improvements relating to electrical rectifier circuits
IPC: H03D1/10
Filed: 1955-10-13
Abstract: 814,652. Rectifying. GENERAL ELECTRIC CO. Oct. 13, 1955 [Oct. 13, 1954], No. 29203/55. Class 38 (2). In a circuit for rectifying an alternating voltage of varying magnitude, comprising a storage capacitor 4 on the output side, a valve 7 is connected inversely in parallel with the rectifier 5 so that when the amplitude of the A.C. voltage is decreasing the capacitor 4 can discharge through the valve whereby its voltage follows that of the A.C. without delay. The A.C. supply e10 is derived from the lower half of a secondary winding 3 of a transformer 1, centre tapped at 6. Valve 7 must be prevented from conducting except when the cathode receives positive voltage peaks from the centre tap 6. It then conducts or not according as the peak voltage is less or at least equal to the voltage across capacitor 4. To block valve 7 except at these positive peaks of e10 the grid is supplied with three differently phased voltages e30, e40, e20 derived at point 15 through rectifiers 17, 16, 18 respectively from resistor 11 and capacitor 12 connected across the lower half of winding 3, from resistor 8 and capacitor 9 connected across the upper half of winding 3 and from resistors 13, 14 connected across the top half of winding 3. The sum of these three voltages keeps the grid negative except at the appropriate time, for a period whose length may be varied by altering the value of the components of the phase shift circuits. The D.C. output may be taken from across capacitor 4 or through a cathode follower 19.
Patent GB-1211045-A (GB)
Title: Tentering clip
IPC: B29C55/20
Filed: 1968-06-19
Abstract: 1,211,045. Tentering apparatus. BEVIS INDUSTRIES Inc. 19 June, 1968 [16 April, 1968], No. 29205/68. Heading B5B. [Also in Division D1] Tentering clips strong enough to cope with the increased forces met in the processing of thermoplastic sheet material such as polyester, polyethylene or fluorocarbons have a horizontally disposed base 10 provided with a clamp surface 11, a vertical upstanding wall 12 and a horizontal platform 13 which overhangs 12 to form a rearward portion and a forward portion which overlies 11 and terminates in a pair of spaced apart arms 14 and 15. The base 10 has a central section 16 provided with a pair of upper ears 18 and 19 which project horizontally sidewise and a pair of lower ears 20, 21 which project parallel to 18 and 19. A jaw 25 with a projection 26 and clamping edge 27 is loosely hinged to a pintel 23 supported in the arms 14 and 15. The jaw 25 is normally free to move into position with edge 27 engaging the clamping surface 11 to provide a horizontal bite line. Axle pin bores in 18 and 19 are aligned with those in 20 and 21 respectively. A vertical plane passing through the bite line also passes through the axis of these bores. The clips may be pivotally connected into a chain by means of a shaft 40 passing through the axle pin bores of the ears 18, 20 of one clip and 19, 21 of the adjacent one. This arrangement prevents the scalloping or compressing of the material between adjacent clips which occurs when prior art clips travel in a curve.
Patent GB-594281-A (GB)
Title: An improvement relating to doors of cookers and/or refrigerators
IPC: E05D5/12
Filed: 1945-11-05
Abstract: 594,281. Refrigerator doors. HEAD, W. G., and FREETH, F. W. Nov. 5, 1945, No. 29279. [Class 29] [Also in Groups XI and XXV] Hinge lugs C, D, and E, F, are arranged two on each side of the frame of a stove or refrigerator door frame whereby the door B may be hung at the right or left side. The lugs are provided with a hinge pin hole, the door hinges G, H being correspondingly holed. A single hinge pin I or one for each lug, is, or are provided. The lugs may be in recesses in the door frame, and when the door is fitted with handles, levers or the like tc engage a catch on the door frame, one catch is provided on each side of the frame. The hinge pins may be secured in place by nuts housed in recesses in the undersides of the lugs. Reference has been directed by the Comptroller to Specifications 219,264 and 329,518, [both in Class 126].
Patent GB-357795-A (GB)
Title: Improvements in or relating to the manufacture of alkaline earth oxides
IPC: C01F11/06
Filed: 1930-10-01
Abstract: Oxides of the alkaline earths, including calcium, barium and strontium, are obtained by heating the carbonates admixed with small quantities, say 6 per cent, of carbon or substances containing free carbon in hydrogen above 700 DEG  C., for instance, at 800-850 DEG C.  Rotary iron furnaces may be employed.  The mixture of carbon monoxide and hydrogen evolved may be used for heating purposes. Barium and strontium oxides so obtained are suitable for the production of peroxides.  Thus, barium peroxide may be obtained by heating the oxide to 600 DEG  C. in an atmosphere of oxygen.
Patent GB-294099-A (GB)
IPC: C10G32/02
Abstract: 294,099. Epner, C. July 16, 1927, [Convention date]. Acyclic hydrocarbons.-Oils, suitable for use as lubricants are obtained by subjecting methane, gases containing methane, gases obtained in cracking hydrocarbons, or ethane or ethylene from coke oven gases to the action of an alternating electric field preferably of high frequency and high voltage. The products may be hydrogenated. The gases may be passed through a Siemens tube or series of tubes and subjected to an electric discharge of 500-10000 cycles under a tension of 1000-25000 volts. Specification 294,100 is referred to.
Patent GB-917847-A (GB)
Title: Method of polymerisation of acrylonitrile
IPC: C08F20/44
Filed: 1961-08-15
Abstract: Acrylonitrile is polymerized in dimethyl sulphoxide by a process which involves adding only a part of the dimethyl sulphoxide at the start of the reaction and adding the remainder, either as a continuous stream or in portions, during the course of the polymerization.  Polymerization may be catalysed by ammonium persulphate.  Specification 917,848 is referred to.
Patent GB-659568-A (GB)
Title: Improvements in the production of aluminium formate containing water of crystallisation
IPC: C07C51/41
Filed: 1949-11-18
Abstract: Aluminium formate containing water of crystallization is produced by reacting aluminium chloride solution with formamide in the presence of free formic acid.  The concentration of formic acid in the reaction mixture should be between 5 and 75 per cent. The reaction is preferably carried out at elevated temperature but below 75 DEG  C. The mother liquor after separating the crystallized aluminium formate may be used again.