baber/WOPTO huggingface dataset:
Patent GB-646666-A (GB)
Title: Improvements in electric tumbler switches
IPC: H01H23/16
Filed: 1948-08-24
Abstract: 646,666. Tumbler switches. CRABTREE & CO., Ltd., J. A., and HILL, W. E. Aug. 24, 1948, No. 22244. [Class 38 (v)] A tumbler switch comprises a tension spring which produces the contact pressure and also gives a snap-action to the dolly. In a double-pole switch, the dolly m<SP>2</SP>, pivoted at k, has two forked extensions m, each having a tension spring r connected thereto at u and also to a contact plate a. Each plate a has raised and depressed portions, s<SP>1</SP> and s, respectively, the latter having a groove S<SP>2</SP> to accommodate the end of the spring r around a spindle o, the ends of which are guided by slots t in the base. The lower ends of the extensions m are formed as cams w co-operating with rollers p on the spindles o. As the dolly is moved clockwise from the Fig. 3 position the plates a are first pivoted about their left-hand ends to form a gap x, and then about a baseprojection l to form a larger gap y, both of which are maintained so long as the dolly is in the Fig. 4 position. In a modification, (Fig. 6, not shown), each contact plate a has a transverse circular enlargement through which the pin o extends, a gap being formed in the wall of the enlargement to accommodate the end of the spring. The invention may be applied to a singlepole switch. According to the Provisional Specification, the cam w may first engage the plate to produce the short break, this gap, being closed again in the final position of the dolly.
Patent GB-531747-A (GB)
Title: Improvements in and relating to devices for applying air to the head, more particularly hair dryers
IPC: A45D20/46
Filed: 1939-08-01
Abstract: 531,747. Hair dryers. CALDERON, M. Aug. 1, 1939, No. 22273. [Class 81 (ii)] A hair dryer including an air chest and a plurality of air tubes, having air discharge holes therein, pivotally mounted on the air chest in such a manner that movement of the air tubes about their pivots is adapted to control the supply of air, characterized in that the tubes and their associated valve boxes are formed as integral units which may be individually dismounted from the air chest. The hair dryer comprises a main air chest consisting of a rear metal or other suitable cover 10 and a detachable front plate 11 which may be formed of a moulded synthetic resin. The air tubes 14 with their associated valve boxes 13 are mounted on the plate 11 by means of mounting projections 22 inclined at different angles to the plate. The tubes may be disposed symmetrically on either side of the central tube, as shown, the inclinations of the faces of the mounting projections increasing on either side thereof. The tubes are also progressively decreased in length on either side of the central tube which permits the tubes to be more evenly arranged about the head. The tubes are of flat or oval crosssection, being curved longitudinally and transversely. The air chest is fitted with a conical baffle plate 30 to reduce its volume and to direct the air stream to the ports 31 in the plate 11. To dry the hair at the nape of the neck holes 32 may be provided in the plate 11, those holes which are covered by the baffle being fed through apertures, preferably slits 33, in the baffle. Specifications 373,954 and 446,957 are referred
Patent GB-223644-A (GB)
Abstract: 223,644. Western Electric Co., Ltd., (Western Electric Co.. Inc.). July 23, 1923. India-rubber, purifying; plastic compositions containing india-rubber and ebonite or quartz.- A material is composed of rubber substantially free of water-soluble matter and an insoluble filler. The rubber is subjected to prolonged washing, before vulcanization preferably during preparation from the latex, until the rubber contains no more than approximately 0.1 per cent by weight of soluble crystalloids. Rubber thus. treated can be immersed for an indefinite period without absorbing more than 1 per cent bv weight of water. The filler is used in a finely divided' state and must be of such a nature that the particles lie in real contact with, or are held with good cementation to the rubber. Ebonite or any rubber vulcanized sufficiently to make it impervious to water or degasified fused quartz form satisfactory fillers.
Patent GB-1037663-A (GB)
Title: Improvements in mineral mining installations
Inventor: PIDGEON BRIAN GEORGE
IPC: H02P29/00
Filed: 1962-06-08
Abstract: 1,037,663. Automatic control systems. COAL INDUSTRY (PATENTS) Ltd. May 31, 1963 [June 8, 1962], No. 22364/62. Heading G3R. [Also in Division E1] An electrical-hydraulic servo control system for a mineral-mining installation in which either an electrics-1 signal representative of the loading of the electrically driven cutting head of a mining machine or an electrical signal representative of a pre-selected speed of advance of the machine is feed to control means of the machine haulage to maintain the required status quo of the installation. The first signal is the combined output voltage from a current transformer 16 associated with the power supply to the cutter head motor and a source of reference voltage. The second signal is from an adjustable source 22 of reference voltage. The required signal is feed through switch 23 to amplifier 19 and then to a motor 24 controlling a servo valve controlling hydraulic actuators 13 regulating the setting of a swash pump 11 feeding through reversing valve 30 the hydraulic motor 10 of the haulage means of the installation. Negative feed means 12, 23, 26, 29 and 28 provided for the stabilizing of the system. The load on the cutting head motor may be monitored by a Hall multiplier instead of the current transformer.
Patent GB-1049522-A (GB)
Title: Improvements relating to fabric combining machines
Inventor: DOWTHWAITE JOHN LESLIE
IPC: B32B27/00
Filed: 1962-06-12
Abstract: 1,049,522. Laminating. WESTON-EVANS & CO. Ltd. June 7, 1963 [June 12, 1962], No. 22429/62. Heading B5N. Continuous webs are united by applying adhesive as a continuous or discontinuous film to the surface of a drum which has previously been coated with a release agent, allowing the adhesive to become tacky by solvent evaporation; e.g. by heating the drum, bringing a first web against the tacky adhesive and subsequently stripping this web and adhesive from the drum, bringing a second web against the adhesivecoated first web and pressing them together by passing them through rolls. They may then be carried on an endless band over a further heated roll. The first web may be pressed against the adhesive on the drum by a roller or an endless band. The adhesive may be applied to the drum by doctor blade and roller, by spraying, or by off-setting in the form of a network, stripes, or of discrete areas from an engraved or toothed printing roll. The drum may be heated electrically or by steam, water, oil, gas flame or hot air and may be thermostatically controlled. The webs may be of rubber foam and cloth which may be elastic or inelastic and loosely or tightly woven or knitted. The preferred arrangement for feeding the web to the drum is that which forms the subject matter of Specification 1,049,521.
Patent GB-533157-A (GB)
Title: Improvements in or relating to vulcanising molds
IPC: B29D30/06
Filed: 1939-08-03
Abstract: 533,157. Vulcanizers. FIRESTONE TYRE & RUBBER CO., Ltd. Aug. 3, 1939, No. 22545. Convention date, Dec. 10, 1938. [Classes 70 and 87 (ii) ] In a vulcanizer for tyres or inner tubes having a stationary lower section 10 and an upper power-raised section 11, the mould sections 24b, 26b are attached by screws so as to be readily removable and replaceable to casings 24a, 26a so as to leave spaces 34 ... 36 for circulation of steam. The upper casing 26a is carried by a ram 15 mounted for relative movement in the upper casing 11. After raising the upper section 11, the tyre is lifted from the lower mould section by a ring 45 carried by a sleeve 52 which is raised by fluid pressure admitted below a piston 67. An expansible core 30 within the tyre is inflated and discharged through a valve stem 48 operated automatically by axial movement of the core. The Specification as open to inspection under Sect. 91 describes also forms of tyre-vulcanizing apparatus in which the adhesion of the tyre to the lower section of the mould is broken by injection of air between the mould and the tyre, and also in which the mould for the tread is made in arcuate sections pressed together radially by tapered pins on them fitting into tapered openings in the lower section. This subject-matter does not appear in the Specification as accepted.
Patent GB-291649-A (GB)
Title: Improvements in or relating to hair combs for combing human hair and like purposes
IPC: A61N1/26
Filed: 1927-08-27
Abstract: 291,649. Mangold, C. B. Aug. 27, 1927. Electric appliances. - A hair comb is provided with two sets of teeth 2, 3, one set being in permanent connection with one pole 12 of a battery in the handle 10, the other set being connected to the other pole, which is connected to the handle 10 through a screwed member 15. The latter is in permanent connection with the handle 10 and can be screwed along the latter into contact with a stud 4 connected to the teeth 3. The appliance can be tested by means of a small lamp having two terminal plugs which can be inserted in sockets 6 in contact with the two sets of teeth.
Patent GB-597844-A (GB)
Title: Improvements in or relating to the making of glass
IPC: C03B5/04
Filed: 1945-09-03
Abstract: 597,844. Glass-melting furnaces. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. Sept. 3, 1945, No. 22579. Convention date, July 27, 1944. [Class 51 (ii)] [Also in Group XXIII] In the manufacture of glass the batch is charged into a gas heated furnace 1 at the end 2 at which the gases are at a relatively low temperature and moves forward in a direction contrary to that of the gases which flow from burners 11 at the fining end to the charging end. Fining is effected by additional heat generated in the glass by immersed electric resistors or by the passage of current between immersed electrodes 5. Specification 597,833 is referred to in this connection. Electric heating may also be used to supplement the gas heating in the melting zone.
Patent GB-301357-A (GB)
Title: Improvements in instrument sterilizers
IPC: A61L2/06
Filed: 1927-08-27
Abstract: 301,357. Slater & Co. (Engineers), Ltd., J., and Robinson, J. C. Aug. 27 1927. Disinfecting chambers and vessels.-In sterilizers for surgical instruments, comprising a container a carried in a support b and having a hinged lid c the lid is provided with counterweights i, m adapted' to retain it in open or closed position as required. The weight i is carried by the spindle h supported by brackets g connected to the lid c. One of the brackets g is extended as at j along the cover c and is provided with downward projections k carrying a spindle l along which the weight m is slidable. The lid c is held open or closed according as the weight m is adjacent to a remote from the lid hinges d. The instrument tray c is supported on lazy-tongs n pivoted to the container a at p, and connected with the lid c by a link o or a pair of such links whereby the tray is raised or lowered by the movement of the lid.
Patent GB-226145-A (GB)
Abstract: 226,145. Caloric Akt.-Ges. f³r Rauchlose Feuerung, (Assignees of Huth, E. F., and Negbauer, W.). Dec. 12, 1923, [Convention date]. Closed solid - fuel stoves; coking chambers. - In a closed stove having a fuel distillation chamber with means to admit air to the space above the fuel, and with ducts in the walls of the chamber leading down to the level of the incandescent fuel on the grate, the chimney draught is caused to act in part through the grate and in part to draw the distilled gasses and air past, and not through, the incandescent layer, in order to restrict the extent of this layer. In the stove shown, gases distilled from the fuel in the chamber 1 pass, together with air entering through an opening in the door 6, into the hollow wall 3, and are delivered at 5 past the incandescent layer of fuel on the grate 2, where they are ignited. Combustion is completed in the chamber 9. A boiler furnace working on the same principle, and comprising three distillation chambers and one combustion chamber common to them is also described.
Patent GB-1318819-A (GB)
Title: Superconducting devices
IPC: H03B15/00
Filed: 1971-04-19
Abstract: 1318819 AC Josephson effect devices INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [2 March 1970 23 March 1970] 22702/71 Heading H1K A superconductor device comprises a Josephson junction arranged between a pair of electrodes which define a resonant cavity for radiation emitted by the junction by virtue of the AC Josephson effect. The electrodes may be of metal or semi-conductor material and the cavity is defined by the radiation penetration depth in the case of metal and by the depletion layer width in the case of semi-conductor material. When the electrodes are both of metal they are separated by a layer of insulation, e.g. silicon oxide or niobium oxide but when one or both electrodes are of semi-conductor material they may be indirect contact, the Schottky barrier depletion layer providing the electrical insulation. The position of the junction within the cavity determines the mode of operation and a plurality of junctions may be arranged between the same electrodes. Frequency modulation of the output radiation may be achieved when one or both electrodes are of semi-conductor material by varying the biasing voltage to change the width of the depletion layer and hence the width of the cavity. Alternatively the junction may be surrounded by two bodies of piezoelectric material or by a metal body and a body of piezoelectric material arranged to provide an extension of the cavity. Application of voltage to the piezoelectric body enables the effective length or width of the cavity to be varied. The Josephson junctions may be produced by spark erosion in a liquid He environment. For example if a spark is truck between a pointed probe and a block of GaAs, which is to form one electrode, a small region of Ga is produced to provide the junction. The second electrode is then applied for example by evaporation or sputtering. Alternatively the two electrodes may be shaped and placed in proximity, the sparks occurring at the closest points to form the junctions. The junctions may utilize a thin insulating layer instead of a weak link.
Patent GB-772263-A (GB)
Title: Improvements in or relating to spars for spar rollers
Inventor: HALL HUBERT DANIEL
IPC: B65H27/00
Filed: 1954-08-05
Abstract: 772,263. Spar rollers. HALL & KAY, Ltd. July 5, 1955 [Aug. 5, 1954], No. 22724/54. Class 96. A spar roller suitable for use in the manufacture and processing of paper comprises a shaft 10, Fig. 1, carrying discs 14, 17 and 19 to which are secured channelled metal spars 20 having inwardly or outwardly turned longitudiual edges. A spar with inturned edges 21, Fig. 3, is bolted to the flange 16 of each disc by a bolt 24 passing through a washer 23 and a hole in the flange to engage a nut 27. The washer 23 may have a slot 25 receiving the head of the bolt. Spars with out-turned edges 29, Fig. 6, are clamped to the flanges of the discs by washers 32 and nuts 31 which engage bolts 30 secured to the flanges. Each washer 32 holds the adjacent edges of two spars.
Patent GB-396231-A (GB)
Title: Improvements in abrasive tools, and in methods and apparatus employed in their manufacture
IPC: B24D7/02
Filed: 1932-08-13
Abstract: 396,231. Moulding abrasive wheels &c. BUCKNER, O. S., Church Street, Northboro, Massachusetts, U.S.A. Aug. 13, 1932, No. 22760. [Class 87 (ii).] In the manufacture of abrasive wheels and other tools from bonded, irregularly-shaped, grains of abrasive material, the grains are turned during the moulding process so that their largest dimensions lie in a desired direction, for example, approximately perpendicular to the working face of the tool. The positioning of the grains is achieved by coating the grains x, when of non-magnetic material, with a layer y of iron &c. dust, and subjecting the grains in the mould to a magnetic field. As applied to the production of a grinding-wheel, the mould has an outer circular wall h and an inner wall g of steel, and a bottom i of brass or other non- magnetic metal, and is placed with the wall g over the central pole a of an electromagnet having an annular pole c surrounding the mould. As applied to the production of an abrading-block, the mould is placed with a pole of the magnet at each end. The magnetic coating y may be secured to the grains x by an adhesive, for example, dextrine or glue, or by means of ceramic &c. bonding-material.
Patent GB-154019-A (GB)
Title: Improvements in and relating to dough dividing machinery
IPC: A21C5/08
Filed: 1919-09-17
Abstract: 154,019. Troxler, P. Sept. 17, 1919. Dough-dividing machines.-In dough-dividing machines comprising dividing-knives 5 and a presser 7 adapted to operate on dough in a container 16, the knives and presser are carried by co-axial spindles 4, 6, operable respectively by levers 15, 11, pinions 13, 9 and racks 12, 8. The levers 11, 15 may be mounted to move about the same shaft towards the operator.
Patent GB-1469699-A (GB)
Title: Mixing materials
IPC: B01F5/00
Filed: 1974-05-22
Abstract: 1469699 Mixing apparatus D BOENISCH 22 May 1974 [22 May 1973] 22866/74 Heading B1C A mixing apparatus comprises a container 10 mounted on a support for an orbital motion of translation in a plane and containing an array of blades 11 fixed to the container and spaced along a closed curve 12 parallel to the plane of motion; the blades lie in planes between the radial and tangential to the curve and their outer ends face the direction of motion, whereby a circulating flow is set up in the opposite direction to the orbiting motion, and sub-flows pass between the blades to recombine in the centre of the container and flow round the ends of the blades to the outer region 13. The container may be discharged (see Fig. 4) by providing a central discharge tube 19 and a cover 17 with a pressure air inlet 18. In modifications the blades may be surmounted by a tube (20, Fig. 5 not shown); the blades may be unequally spaced, Fig. 6 (not shown) and Fig. 7; there may be more than one array of blades which may be arranged coaxially (26, 27, Fig. 8 not shown) or spaced round the container (Fig. 9, not shown). The blades may be of metal or synthetic material or rubbercovered, and of the same material as the container or different. They may be plane, curved, upwardly tapering, twisted or inclined. Continuous discharge apparatus may comprise a mixer of the type of Fig. 9 in which a radial baffle (28) separates two of the blade arrays, inlets (30, 31) being arranged on one side of the baffle and the outlet (29) on the other. Another embodiment (Fig. 10, not shown) comprises a plurality of mixers of the type shown in Figs 1 and 3 arranged in a circle on a common support and having passages (32b, 32c) between them except for the two at which the materials are respectively supplied and withdrawn. An embodiment in which the mixing chamber is in the form of a horizontal trough, Fig. 7, is orbited in a vertical plane, materials being fed in at 23 and the mixture discharged at 24. Foundry sand is separately mixed with resin and with hardener in the embodiment of Fig. 11, sand being fed at 40 and divided between two sets of mixers on a common orbiting support, and resin and hardener being separately fed at 41, 42 respectively. The two pre-mixers are then mixed in a final mixer 45 which may be mounted on the common support or separately.
Patent GB-1088260-A (GB)
Title: Improvements in or relating to building constructions
Inventor: MCCAIG ADAM
IPC: E04B1/21
Filed: 1965-05-28
Abstract: 1,088,260. Concrete columns. MAYCRETE Ltd. May 31, 1966 [May 28, 1965], No. 22876/ 65. Heading E1W. In a concrete column for supporting a roof truss 2, fixing bolts 4 cast into its head are located by a metal plate 3 which also acts as a seating for the shoe of the roof truss 2.
Patent GB-614819-A (GB)
Title: A new or improved harrow for agricultural or horticultural uses
IPC: A01B25/00
Filed: 1946-08-01
Abstract: 614,819. Agriculture implements. HALL, J. Aug. 1, 1946, No. 22972. [Class 6 (i)] Harrow teeth 4 are mounted in the underside of a platform I reinforced by battens 3. The supporting wheels are mounted in brackets 13, 14, non-circular portions 10 of the spindles being slidable in slots in the brackets and fixed by nuts 16 on the threaded ends 11. Graduations on the brackets and a mark on the hub 8 indicate the settings of the four wheels relative to the base 1. The handle 21 is tiltable for movement in either direction, eyes 24 being slidable on bars 25.
Patent GB-701658-A (GB)
Title: Improvements in or relating to the manufacture of self-sealing bags, envelopes and like containers
Inventor: RANDALL JOHN WILLIAM
IPC: B31B23/00
Filed: 1951-10-03
Abstract: 701,658. Making paper bags. DICKINSON & CO., Ltd., J. Sept. 26. 1952 [Oct. 3, 1951], No. 22997/51. Class 94 (2) To produce self-sealing bags, a coating of liquid gum 10, Fig. 1, is applied to those parts of a continuous bag tube 1 which will form the self-sealing areas of the bag lengths 9 to be severed therefrom and then self-sealing adhesive 11 is applied to the gum-coated areas while the tube is longitudinally tensioned and before severing and sealing the bottom end of each bag length. In the embodiment described, notches 5 are cut in the margins of the web 3, from which the tube 1 is formed, to form slots 6 in the tube which expose the inner faces of those portions of the opposite wall which will form the bottom and top end sealing flaps 7, 8 respectively of e a c bag  length 9. Each area 10 may be entirely covered with a coating 11 of self-sealing adhesive or the primary gum coatings may be restricted to the self-sealing top end areas of the tube, the bottom end areas being subsequently gummed for sealing. In the bag-making machine described, a web 3, Fig. 3, of transparent paper is drawn by feed rolls 13, 22 between notching rolls 15 and a gumming unit 16 which intermittently applies longitudinally seaming strips 4, Fig. 1, between the notches 5. The web 3 is then formed into tube 1, by the plough unit 17, and the gum patches 10 applied by unit 18 and dried by heated elements 19. Latex patches 11 are subsequently applied by unit 20 and dried by the heated elements 21, the bag lengths being severed by device 23. The gummed bottom end flap 7 is then remoistened or regummed by unit 25 and folded and sealed by unit 26 the completed bags being delivered to the stacking device 27a.