baber/WOPTO huggingface dataset:
Patent GB-225309-A (GB)
Title: Improvements in or relating to driving belts
IPC: F16G1/24
Filed: 1923-09-10
Abstract: 225,309. Merilion, A. Sepi. 10, 1923. Belts. - In driving-belts for flat or grooved pulleys and of the kind in which a standard bicycle chain is secured to ordinary belting or has secured to its running surface short pieces of leather or the like of uniform thickness, the attachment is effected by rivets, bolts or the like having flat heads countersunk in the leather and supported at their upper ends by soft metal washers or flexible material to ensure a firm grip upon the chain links. The flexible material supporting the upper ends of the rivets may constitute a second belt-driving surface. Various arrangements are shown. In Fig. 1. the chain A is secured to a continuous flat belt B by countersunk rivets the heads of which are supported by round copper washers bent over the links. In Fig. 4. leather blocks C are secured to the chain by bolts, the nuts of which are supported by leather washers C'. By substituting rivets countersunk at both ends, this form may be adapted to drive on both upper and lower sides. A double driving-belt with the leather pieces D, D<1> formed into U-shape by pressure for use with grooved pulleys, is shown in Fig. 6A. In the arrangement shown in Fig. 7<A>, two layers E, E<1> of U-shaped leather pieces are provided for cooperation with pulleys having relatively wide grooves. Instead of individual washers for each rivet or bolt continuous leather belting or webbing may be substituted. Specification 18714/09 is referred to.
Patent GB-698094-A (GB)
Title: Improvements in and relating to safety razors
IPC: B26B21/32
Filed: 1950-09-18
Abstract: 698,094. Razors. EVER-READY RAZOR PRODUCTS, Ltd., and HENLEY, C. F. Sept. 18, 1951 [Sept. 18, 1950], No. 22874/50. Class 30 A safety razor comprises a hollow handle surmounted by a hollow head which includes a blade-supporting guard having a central, longitudinal slot, blade-clamping means in the form of twin cover elements each of L-shape in cross-section and mounted with the bends in opposed parallel relation for sliding through the guard slot and for rocking movement between positions in which the long limbs of the cover elements are collateral to allow of placing a centrally and longitudinally slotted blade on the guard with the collateral limbs extending up through the blade slot and positions in which the long limbs lie upon the blade, flanking its central slot, and the short limbs lie flatly back to back, and blade-clamp operating means carried by the handle and co-acting with the cover elements to rock them. As shown, a tubular handle 1 is surmounted by a fixed head 14 which comprises a stepped channel member 15 and a rectangular guard 16. A T-shape element 10 is axially withdrawn, within the handle, by a nut 6 which has a finger-grip knob 11, and is provided with a head 30 co-acting with edges 27 on bladeclamping members 19 to rock them to the position shown in Fig. 6 so that a blade may be passed over the members 19 and placed on the blade-seat portion of the guard 16. In order to allow for manufacturing tolerances the parts 9A, 9B of the element 10 are hingedly connected by a pin 43 so that the members 19 are self-adjusting in the reverse axial movement of the element 10 to clamp the blade.
Patent GB-1048127-A (GB)
Title: Improvements in or relating to hose and pipe couplings
Inventor: MALING RONALD MAUDE
IPC: F16L33/22
Filed: 1962-06-14
Abstract: 1,048,127. Hose coupling. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 28, 1963 [June 14, 1962], No. 22888/62. Heading F2G. A hose coupling comprises a tapered spigot received within a hose, and a tapered sleeve of different conicity to the spigot, slidable longitudinally over the hose to clamp the hose about the spigot, wherein the largest diameter of the spigot 4 occurs at the end of the spigot. The end of the hose is slit to form straps 13 bent over the sleeve 8 to be clamped to the outer surface of the sleeve by a circlip 14. The central part of the spigot portion is threaded to enable a nut 3 to engage a washer 10 to clamp the straps between the washer and sleeve and to force the sleeve over the tapered spigot. An extension 5 of the spigot carries holes 6 to receive a tommy bar to prevent the spigot from rotating as the nut is tightened. In a second embodiment (Fig. 2, not shown), a nut 18 carries a flange 19 to enable the coupling to be secured to other apparatus, and the hose is not slit to form straps. A groove 29 and a keyway 20 formed in the bore of a spigot, may be used in co-operation with a rod (Fig. 3, not shown), having an eccentric disc and a spline to secure the rod to the keyway and hold the spigot from rotation respectively, when one end of the rod is clamped and the nut is tightened.
Patent GB-1308755-A (GB)
Title: Arrangement for discharging measured quantities of powdered or  granular filling materials into packaging containers
IPC: B65B43/56
Filed: 1971-04-19
Abstract: 1308755 Rotary conveyers FR HESSER MASCHINENFABRIK AG 19 April 1971 [3 March 1970] 22897/71 Heading B8A [Also in Division G1] In an arrangement for filling cans with measured quantities of granular or powdered materials wherein cans are fed from at least two tare weighers to a common predispenser and thence to at least two control weighers each with an associated make-up dispenser controllable through a calculator connected with the tare weighers and control weighers, gripper arms 8 are provided at each tare weigher 6 which under the control of levers 35 provided with rollers 36 co-operate with a fixed cam 37a to transfer the cans to an intermediate feed disc 11 and at least one part of the cam 37a is of a form to cause the gripper arms 8 to be (i) retarded in the region of the tare weigher 31, (ii) accelerated in the direction of travel, (iii) retarded a second time, (iv) accelerated in the direction of travel a second time and then (v) moved on at substantially a constant speed. The gripper arms 8 are pivotally mounted on spindles 33 in a ring 34 and are connected to the levers 35 which are spring biased to maintain their rollers 36 in contact with the fixed cam 37a. The cam has two recesses 70, 71 and protrusions 72, 73 which cause the required retardations and accelerations of the arms when the ring 34 is rotated. A first feed disc 5 causes cans 2 to slide one at a time on to the tare weighing table 31, to be stopped by an arm 8 while retarded by the second cam recess 71. Then after weighing, the succeeding arm 8, while retarded by the first cam recess 70, strikes the cam and as it is accelerated by the second cam protrusion 73 moves the can on to a plate 38 where it is guided by a rail 40 to a slideway 62 and the intermediate feed disc 11. During this procedure a tube 10 is raised and lowered to blow a flushing gas into the can to flush out the atmospheric oxygen. The gripping arms 8 may be replaced by larger ones appropriate for smaller cans and the arms may be forked.
Patent GB-1108704-A (GB)
Title: Process for the separation of a liquid mixture by means of adduct formation
IPC: C10G73/24
Filed: 1966-05-23
Abstract: A process for the separation of a liquid mixture by means of adduct formation comprises contacting the mixture with an adducting agent, separating the adducts formed from accompanying liquid in at least one hydrocyclonic zone, decomposing the separated adducts and recovering adducting agent and adductable components.  The mixture may be a petroleum fraction; the adducting agent may be urea which forms adducts with straight-chain hydrocarbons or thiourea which forms adducts with branched-chain and cyclic compounds; hydrocarbon hydrates, quinols and other clathrate compounds may also be used. The adducting agent may be used solid or in solution, e.g. in methanol.
Patent GB-620500-A (GB)
Title: Improvements in an adhesive for fixing tiles to walls
IPC: C04B28/10
Filed: 1946-08-01
Abstract: A composition for sticking tiles to walls comprises hydraulic cement, particularly Portland cement, casein, trisodium phosphate, and a cold glue based on casein, a preferred composition containing 50 kg. cement, 1.4 kg. casein, 0.35 kg. trisodium phosphate and 0.02 kg. cold glue.
Patent GB-1168194-A (GB)
Title: Process for the Drying of Organic Solvents
IPC: B01D53/26
Filed: 1968-05-15
Abstract: 1,168,194. Drying solvents. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT. 15 May, 1968 [19 June, 1967], No. 23039/68. Heading C2C. [Also in Division C1] Organic solvents which are inert to sodium monoxide are dried by treating the wet solvent with sodium monoxide. Solvents mentioned are dioxan, tetrahydrofuran, pyridine, dimethylformamide, isopropanol, acetonitrile and anisole. The sodium monoxide may be applied to a support which may consist of non-active carbon and alkaline earth metal oxides.
Patent GB-908911-A (GB)
Title: Variable speed power transmission mechanisms for vehicles
IPC: F16H37/00
Filed: 1960-07-01
Abstract: 908,911. Change-speed gear combinations. WICKMAN, A. C. June 9, 1961 [July 1, 1960], No. 23046/60. Class 80 (2). A vehicle has an over- or under-drive planetary gear located immediately adjacent its engine and prior to the main clutch and a synchromesh gear-box. In the under-drive gear shown, a ring gear 16 is fast with an engine shaft 15, a planet carrier 13 is fast with a driven shaft 14, and a sun 10 is provided with a friction disc 17 engageable with a clutch disc 16 on the ring gear for direct drive and engageable with a brake disc 18 carried by the housing for reduced drive. The shaft 14 is clutchable, by a friction clutch 22, 23 to the input shaft 24 of the synchromesh gear (not shown). Clutch 16, 17 is engaged by springs, and brake 17, 18 is engaged by hydraulic means 20 which also disengage clutch 16, 17. If over-drive is required, the ring gear is secured to the driven shaft and the planet carrier connected to the engine shaft. Specification 831,661 is referred to.
Patent GB-533308-A (GB)
Title: Improvements in or relating to means for masking traffic control lights
IPC: G08G1/095
Filed: 1939-08-10
Abstract: 533,308. Masks for traffic control lights. WARDLE, R., and NEWCOMBE, W. Aug. 10, 1939, No. 23060. [Class 75 (iv)] Opaque masks formed with crossed slits are mounted in front of traffic control lights so as to be movable easily between the operative and inoperative positions without fouling the cowls. In one form shown in Fig. 2 circular masks 11 are pivoted on horizontal shafts 9 in a casing 5 attached to the traffic light casing 4. The casing 5 has a curved top and is sub-divided by two cowllike partitions 7. The masks 11 are raised or lowered simultaneously by operating a lever 15 connected to arms 13 on the shafts 9 and carrying a spring 17 formed with an eye 18 movable over a bent rail 19 to hold the masks in their terminal positions. The masks are fitted with rubber washers 12 to prevent unwanted emission of light in their operative position. In a modification the masks are connected by a linkage operated by a key.engaging one of the pivot shafts. The masks are maintained in the operative or inoperative positions by a tension-spring. In another form shown in Fig. 9 circular flanged masks 41 mounted on a vertical spindle 43 in a casing 37 hinged at 52 to a strap 53 on the traffic light casing 40 and secured by a bolt 56 and nut 58. The spindle 43 is rotated by a key inserted in its base and is held in its end positions by a spring 48.
Patent GB-1105305-A (GB)
Title: Improvements in variable capacitors
Inventor: COTTON MICHAEL BEN
Filed: 1964-06-04
Abstract: 1,105,305. Capacitors. PLESSEY-UK Ltd. 25 May, 1965 [4 June, 1964], No. 23165/64. Heading H1M. A ganged variable capacitor comprises an end plate 11 intersected by a shaft 13 carrying metal e.g. stainless steel rotors 14 having portions of their faces relieved as shown, contacting ceramic dielectric discs 15 having metallized sectors formed on portions of their faces remote from the rotors, such discs being retained against rotation by torque arms (not shown) fixed to supports 12 dependent from the end plate. A sheet of resilient plastic 17 e.g. polyurethane is interposed between the metallized faces of the stator dielectric discs to maintain equal pressures between the stators and rotors, and a metallic screen 18 may be inserted therein.
Patent GB-1468434-A (GB)
Title: Fractional current supply
IPC: H03F3/45
Filed: 1974-05-24
Abstract: 1468434 Automatic current regulation RCA CORPORATION 24 May 1974 [1 June 1973] 23232/74 Heading G3X [Also in Division H3] A current-dividing circuit includes a pair of emitter-coupled transistors with a load connected to the collector of one of them. The base electrodes of the transistors are connected through a device producing a potential difference directly proportional to temperature so that the load current is maintained at a fixed fraction of the combined emitter current independent of temperature. As shown in Fig. 1, a monolithic integrated circuit includes transistors 101, 102 connected with a load 103; current supplies 100, 107, 108 which may be resistors; and identical diode-connected transistors 105, 106 coupled between the bases of transistors 101, 102. It is shown that the ratio of load current IQ to the current Ip + IQ from supply 100 depends only on the ratio of the currents from supplies 107, 108 and the number of transistors in each stack 105, 106, and is independent of temperature. Further stacks may be connected in parallel with transistors 106, or different base-emitter junctions may be used for the stacks 105, 106. Similarly, transistor 101 may be replaced by several parallel-connected transistors, or several pairs of divider transistors 101, 102 may be connected in cascade, using at least some parts of the stacks 105, 106 in common, Fig. 7 (not shown). The circuits enable a small stable current to be derived from a much larger one without the use of large resistors.
Patent GB-465453-A (GB)
Title: Improvements in and relating to needle bars for straight bar knitting machines
IPC: D04B15/20
Filed: 1936-08-24
Abstract: 465,453. Knitting-machines. HILSCHER, G. Aug. 24, 1936, No. 23248. Convention date, Aug. 23, 1935. [Class 74 (ii)] A needle bar for straightbar machines is constructed as a box-like girder stiffened on the inside by lattice work ribs 7, and having bearing eyes 8 on the wall 3, further eyes 6 being provided at the points of intersection of the ribs 7 to receive the cover bolts. The bar may be made of aluminium or a light metal alloy. Specification 391,810 is referred to.
Patent GB-1460604-A (GB)
Title: Self-biased complementary transistor amplifier
IPC: H03F3/20
Filed: 1974-05-24
Abstract: 1460604 Transistor amplifying and signal adding circuits RCA CORPORATION 24 May 1974 [1 June 1973] 23297/74 Heading H3T The invention relates to a known amplifier 71, Fig. 3, comprising complementary common source field-effect transistor amplifiers P22, N24, connected in series between supply terminals 28, 30 and with a common output terminal 26. Signal is applied to the gates in common, from terminal 10 (e.g. via capacitor 14), the gates deriving a quiescent bias from output terminal 26 via feedback resistor 16. Negative feedback at signal frequencies may be avoided by using a low-pass filter (Fig. 1a, not shown) comprising resistor 16. According to the invention, means are provided for varying the potentials at the terminals 28, 30 in the same sense, in response to a control signal. In the embodiment, the means comprises a further pair of complementary common source amplifying FET's P70, N78 with their gates connected to the common control terminal 76. The arrangement may be used for adding two signals, or the control terminal 76 may be connected to the output terminal 26, the arrangement then comprising an inverting amplifier of unity gain. An amplifier 112, Fig. 5, of this type may be used in conjunction with a second amplifier 110, in which the control terminal 76a is coupled to the joined output and control terminals 26b, 76b of the first amplifier to form a differential amplifier having input terminals 10a, 10b and output terminal 76a.
Patent GB-509196-A (GB)
Title: Improvements in the manufacture of rubber articles by the spraying of latex
Filed: 1938-08-08
Abstract: 509,196. Latex. SCHWARTZ, F. F., and CHAVANNES, M. A. Aug. 8, 1938, Nos. 23383 and 23384. Convention dates, Aug. 11, 1937, and Oct. 25, 1937. Drawings to Specification. [Class 70] [Also in Groups VIII and IV] In the deposition of rubber upon a support or base, e.g. of fabric, leather, paper, &c. by moving the base repeatedly in front of a source of sources spraying rubber latex, loading material in a fine state of division is applied at the same time as or immediately before or after spraying with latex so that the loading material becomes incorporated with the successive layers of rubber, each layer of latex being dried before the next spraying. The loading materials may be suspended in a gaseous or liquid medium, e.g. by spraying with a gas or liquid ; or they may be applied by brushes &c. rotating in reservoirs of the material. Porous products may be obtained by spraying in the manner described in Specification 482,767, Group VIII]. Vulcanization accelerators and plasticizers may be deposited simultaneously with the loading material. Specified loading materials include kaolin, chalk, muscovite, talc, feather dust, animal fibre debris, vegetable dust, wood dust and, in particular, cork powder. Different loading materials may be applied in admixture or successively. Air - permeable, water-impermeable fabrics are obtained with the use of cork powder which may be applied in dry form or emulsified with a suitable liquid. Specification 482,844, [Group VIII], also is referred to.
Patent GB-636361-A (GB)
Title: Improvements in or relating to synthetic rubber-like materials
IPC: C08F236/04
Filed: 1947-08-25
Abstract: Rubbery material which is swelled to a limited extent in both aliphatic and aromatic hydrocarbons is prepared by polymerizing a mixture consisting of 65-80 per cent by weight of butadiene-1,3 and 20-35 per cent of substantially equal proportions of acrylonitrile and styrene.  Polymerization is preferably effected in aqueous emulsion using the usual emulsifying agents at temperatures of 20-80 DEG  C.  Suitable catalysts are hydrogen peroxide, potassium persulphate and percarbonate, sodium perborate and periodate, peroxynitric acid, diazoamino benzene, dipotassium diazomethane disulphonate, cobalt chloride, ferrous ammonium sulphate, sodium cobaltinitrite and sodium ferripyrophosphate, either alone or with modifying compounds such as pyrophosphates, organic acids, sugars, dialkyl dixanthogens, thiuram disulphides, mercaptans, thiazoles, dithiocarbamates, sterols, di-cyandiamidine sulphate, thiobarbituric acid, ascorbic acid and thiamine chloride.  The product is preferably stabilized with, e.g. phenyl b -naphthylamine, before coagulation. The polymers, which may be vulcanized, remain flexible at temperatures as low as -40 DEG  to -60 DEG  C., and may be extruded and moulded and used in the manufacture of self-sealing fuel hoses.
Patent GB-1024841-A (GB)
Title: Improvements in or relating to sawing machines
IPC: B27B25/00
Filed: 1961-06-29
Abstract: 1,024,841. Sawing. WEDKIN Ltd., and A. GREEN. Oct. 1, 1962 [June 29, 1961], No. 23563/61. Heading B5L. Work-feeding means for a sawing machine, such as a circular saw or band saw, comprises a power-driven toothed feed device 14 having its teeth arranged to move around a closed path and to engage and bite into the work along the line on which a saw cut is to be made. As applied to a circular saw 12, the device 14 consists of a toothed wheel which is secured to a shaft 17 and extends through a slot in the table 11 of the machine. The wheel is not thicker and preferably less in thickness than the saw and arranged in the plane of the saw so that marks made by the wheel on the material to be sawn are removed by the saw. The shaft 17 carries three gears 48, 49, 50, Fig. 2 (not shown), engaging complementary gears 45, 46, 47, any one of which can be selectively secured against rotation on a shaft 42 by a key 55 slidable axially of the shaft 42 by a rack-andpinion mechanism 55, 60. The shaft 42 is driven by a worm-and-wheel mechanism 40, 41 from a motor 19 to rotate the wheel 14 at a speed determined by engagement of the respective gears. The motor 19 is secured to a casing 18 for gears and shafts, the casing being urged by a spring 28 about a pivot 25; the casing is movable between limits determined by stops 33, 34. The work is pressed into engagement with the toothed wheel 14 by rollers 20 mounted on a lever 21 which is urged into a horizontal position about a pivot 65 on a rod 62 by a spring 68. The rod is vertically-adjustable in a housing 69 mounted on a clamp 71 which, in turn, is vertically adjustable on a pillar 72 by a screw 74. A spring 77 resiliently urges the rod 67 downwardly. A fence 13 is laterally adjustable along a rod 86 which also serves as a pivot for a bracket 89 having work-supporting rollers at its extremity. In other embodiments, the machine may have a plurality of saws and aligned feed wheels and the toothed device may be in the form of an endless band.
Patent GB-747741-A (GB)
Title: Improvements in electroluminescent materials
IPC: H05B33/14
Filed: 1953-08-26
Abstract: 747,741. Electroluminescent materials. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 26, 1953 [Aug. 27, 1952], No. 23623/53. Class 39 (1). Electroluminescent material comprises zinc sulphide activated by copper and lead and containing combined chlorine up to 0.05 per cent, the lead content being 0.000003 to 0.002 atoms per mol. of zinc sulphide. Larger amounts of lead and chlorine are present in the starting materials. Lead is added as the carbonate, sulphate, acetate or nitrate. The Specification discusses the effect of different quantities of copper, chlorine and lead as well as of double firing of the mixture. Zinc oxide is included in the starting mixture which may be blended either wet or dry. Specification 741,931 is referred to.
Patent GB-1363806-A (GB)
Title: Fasteners for carpets
IPC: A47G27/04
Filed: 1972-05-19
Abstract: 1363806 Securing carpets to floors TACKLESS CARPET FASTENERS PTY Ltd 19 May 1972 [7 April 1972] 23772/72 Heading A4S [ Also in Division B5] A carpet-securing strip comprises an extruded, hollow, elongate section 1 of plastics material having carpet-engaging projections 5 and secured to a floor by nails 6 or by adhesive, the plastics material having had its density lowered by a blowing agent. The projections are formed by tacks or nails 3 which are driven obliquely through the section in a massproduction machine operation so that some pass, at least partly, through the central passage 2. The section is vacuum-sized to form an impermeable skin on the inner and outer peripheries and is extruded from a polypropylene incorporating homopolymers and copolymers having a specific gravity of approximately 0À9 which has been lowered by blowing agents to within the range 0À5 to 0À7, or from high density polyethylene having a specific gravity of 0À93 to 0À95 which is lowered by blowing agents to within the range 0À6 to 0À8.