baber/WOPTO huggingface dataset:
Patent GB-462764-A (GB)
Title: Improvements in or relating to photographic flashlight camera apparatus
IPC: G03B15/04
Filed: 1935-12-23
Abstract: 462,764. Flashlight photography ; photographic reflex cameras. SOKAL, S. (Steenbergen, J., Diebel, 0., Frauenstein, H., Englisch, E., Schubert, H., and Koch, C., [trading as IHAGEE KAMERAWERK STEENBERGEN & CO.]) Dec. 23, 1935, No. 35626. [Class 98 (i)] A reflex camera is combined with a flashlight device and controlling means therefor, and means are interposed between the mirror and the controlling means so that the flashlight device is operated when the mirror is raised before actuation of the shutter. As shown, the reflex camera C has a shutter-tripping button C5 and has in one wall sockets C3, C4 supporting a bracket A provided with two conducting pins A1, A2. Secured to the bracket A is a switchbox B containing the battery and provided with a manual switch. Into a flexible post P screwed into the socket B7 on the box B is threaded a socket-head P4 carrying the flashbulb B2 and attached to which is a foldable reflector H. A switch-lever pivoted at 1 has an arm 2 with a pin 3 passing through a slot 4 to engage the mirror M1. The arm 6 of the switch lever engages a switch-plate 8. When the mirror M1 is swung by a spring to non-reflecting position, the plate 8 is pushed against springs 11 into engagement with the pins A1, A2 to close the flashlight circuit. Film- and shutterwinding and lowering of the mirror M1 are effected by the lever 16.
Patent GB-930511-A (GB)
Title: Process for hardening epoxy resins
IPC: C08G59/40
Filed: 1959-10-21
Abstract: Epoxy resins are hardened at room temperature in the presence of a resin-like reaction product from polymerized unsaturated fatty acid and excess of polyamines, and an organic licon compound of the formula <FORM:0930511/IV(a)/1> where n is an integer or <FORM:0930511/IV(a)/2> The examples describe the curing of epoxy resins derived from epichlorohydrin and diphenylol propane with a mixture of dimethylpolysiloxanes and an aminopolyamide.
Patent GB-857625-A (GB)
Title: Improvements in or relating to guards for mill roll scraper blades
IPC: F16P1/00
Filed: 1958-11-06
Abstract: 857,625. Machinery guards. HIGGS, D. J. March 26, 1959 [Nov. 6, 1958], No. 35679/58. Class 80 (4). In a rubber or like mill wherein a scraper blade a for a roller c is pivoted at b so that it may be raised from its vertical operative position to an inoperative position (shown in chain-dotted lines), the edge of the blade is guarded when inoperative by a roller g which moves with the blade but is controlled by cam surfaces in fixed members h at each end of the blade so that the guard roller is moved clear of the blade as the latter reaches its vertical operative position. The ends f of the roller g are carried in slots e in arms d rigid with the blade a. Each end f also engages a cam surface concentric with the pivot b so that as the blade is lowered the surface j holds the end f in a notch at the base of the slot e until an increased-radius part k is reached, whereupon the end f moves out of the notch and is caused by the still-moving arm d to ride up a slot i in the member h towards the position shown wherein the roller g is clear of the edge of the blade a.
Patent GB-1409585-A (GB)
Title: High-capacity crane
IPC: B66C23/74
Filed: 1973-07-26
Abstract: 1409585 Balancing slewing jib-cranes CREUSOT-LOIRE 26 July 1973 [9 Aug 1972] 35713/73 Heading B8B A crane comprises a support structure 1, rotatable about a vertical axis on a chassis 2, carrying a jib 3, a fixed counterjib 4, a pulley system 5 for luffing the jib 3, a pulley system 6  enabling the counterjib 4 to be placed in position, and a balancing system 7. As shown, the chassis 2 is mounted on endless tracks but may alternatively be mounted on pneumatic tyres, Fig. 3 (not shown). The balancing system comprises a beam 7 in a circular arc centred on the vertical axis of rotation and, in the embodiment shown, is in the form of an I-girder anchored by its lower flanges to the ground. A retaining stay 9 is fixed between the upper end of the counterjib 4 and an anchoring device 8 including a carriage running on, and retained by, rollers engaging the upper flanges of the I-girder. Arms 10 connect the carriage to the support structure 1 so that the device 8 follows the slewing movements of the crane. The device 8 may be moved by the slewing movements of the crane or may incorporate a motor drive to slew the crane by its own movement along the beam 7. For transport the crane may raise the beam 7 itself either through the pulley system 6, Fig. 7 (not shown), or by the jib 3, Fig. 8 (not shown).
Patent GB-384820-A (GB)
Title: Improved means and method of promoting combustion of powdered fuel in explosion engines
IPC: F02B45/02
Filed: 1931-12-28
Abstract: 384,820. Powdered - fuel engines. GONIN, L. S., 3636, Decarie Boulevard, Montreal, Canada. Dec. 28, 1931, No. 35805. [Class 7 (ii).] Air is drawn by engine suction through powdered coal in a chamber 30, the air entering at the bottom past an adjustable v a l v e 33. The fuel is fed by a worm conveyer 39 from a hopper 36. To agitate the fuel at starting a hand pump may be used to blow air into the coal in the chamber 30. Extra air is admitted to the cylinder past the adjustable valve 62. Two sparkplugs 53 are used to ignite the mixture.
Patent GB-429245-A (GB)
Title: Improvements in and relating to cutting tools
IPC: B21D37/20
Filed: 1934-12-13
Abstract: 429,245. Making cutting tools. DAIMLER-BENZ AKT.-GES., Unterturkheim, Stuttgart, Germany. Dec. 13, 1934, Nos. 35850, 35851, 35852, and 35853. Convention dates, Dec. 13, 1933, Dec. 29, 1933, May 26, 1934, and July 16, 1934. [Classes 83 (ii) and 83 (iv)] Uniting by fusion.-In making cutting tools, particularly those of great cutting length, cutting edges of high grade material are deposited by electric arc welding on a base metal foundation in a hydrogen atmosphere from a bare welding rod. The rod may consist of steel containing 0À5 per cent of carbon, 0À2 to 0À3 per cent of molybdenum and 4 to 5 per cent of chromium. The arc is preferably struck between two tungsten electrodes. After applying the high grade material, the cutting edges are formed by grinding. Cutting dies and punches b, a, which may be formed of gray cast-iron, malleable cast-iron, cast steel, nickel cast-iron or wrought-iron, &c. are provided with cutting edges by bevelling the edges f and depositing the hard alloy from a rod k by an arc struck between two tungsten electrodes g, h through which hydrogen is passed from a tube l. The cutting edges c which are then formed by grinding project beyond the adjacent surfaces of the tool, thus avoiding the necessity for tooling of the surfaces of the base metal. To prevent the occurrence of cracks in the hard alloy due to heat strains and the coarse texture of the casting when cast metal is used for the foundation, a layer of wrought iron may be applied to the foundation prior to fusing the hard alloy thereon.
Patent GB-1132405-A (GB)
Title: Push-pull transistorised amplifier output stage
IPC: H03F3/26
Filed: 1967-08-04
Abstract: 1,132,405. Transistor amplifying circuits. INTERNATIONAL STANDARD ELECTRIC CORP. 4 Aug., 1967 [10 Aug., 1966], No. 35860/67. Heading H3T. In a push-pull transistor amplifier, each of the transistors Trs1, Trs2 has an emitter circuit resistor W1, W2 respectively, which is not decoupled, and the two emitters are connected together by two resistors R1, R2 in series; the base of the first transistor is driven directly and the base of the second from the join of the resistors R1, R3 via a third amplifying transistor Trs3, the collector of which is direct coupled to the base of transistor Trs2. As shown, a D.C. blocking capacitor C may be connected in series with resistor R1; the working points of the transistors Trs2, Trs3 are stabilized by the heavy D.C. negative feedback around them. The working point of the first transistor Trs1 may be stabilized by direct-coupling it to a preceding amplifying stage and providing D.C. negative feedback around these stages; the preceding amplifying stage may be followed by an emitter-follower stage (Fig. 3, not shown). In a modification in which the emitter-follower is omitted, negative feedback is provided by means of a resistor between the emitter of the first transistor (Trs1, Fig. 4, not shown) and the base of a preceding direct-coupled amplifier and is compensated at signal frequencies by A.C. feedback to the same point, from the collector of the second transistor (Trs2). A further modification is also disclosed retaining the emitter follower stage (Fig. 5, not shown).
Patent GB-1158345-A (GB)
Title: Automatic Burner Control System.
IPC: F22G5/02
Filed: 1966-08-10
Abstract: 1,158,345. Automatic burner control system. COMBUSTION ENG. Inc. 10 Aug., 1966 [31 Aug., 1965], No. 35910/66. Heading F4B. The burners of a steam generator having an automatic fuel supply control are arranged in groups, and the increase in pressure in the fuel supply line is utilized to place additional burner groups in service as required. Relay circuits determining whether one or two burner groups are already in operation allow the appropriate pressure-sensitive switch to actuate a pulsing circuit, the signal from which is directed to the ignition system for the appropriate burner group by a selection circuit. The selection circuit is arranged so that burner groups may be taken out of service manually, or automatically if fuel is not fed to more than a predetermined number of burners in the group, the selection circuit directing the ignition pulse to the next available burner group in a predetermined sequence. The ignition circuit for each group includes a timer arranged to energize the igniters, and open the fuel supply valves to the burners of the group in sequence, finally actuating the burner counter circuit to determine whether fuel is being supplied to more than the predetermined proportion of burners in the group and a feedback circuit to condition the selection circuits for the next alteration in boiler load. In an embodiment, each of three burner groups comprises eight burners, each in a comer of two separate boiler sections, and the counter circuits allow operation only if at least three burners in each section are operative. The burners of each group are at the same elevation.
Patent GB-339101-A (GB)
Title: Improvements in or relating to portable devices for compressing air or actuating cutting and other tools
IPC: F04B27/02
Filed: 1929-11-23
Abstract: 339,101. Hartridge, L. Nov. 23, 1929. Drilling - machines.-A combination engineer's tool, particularly designed for use in motor garages, comprises a portable table 1 mounted on castors 4 and carrying a portable electric drill 5 adjustably secured thereon to drive an air-compressor 11 for inflating tyres, paint spraying &c. or a flexible shaft which rotates tools such as drills, wire decarbonizing brushes, grinding discs &c. The drill 5 is secured by straps 6 to a cradle 7 slidable in guides 8 on the table and secured by a hand nut 12 screwing on a stud projecting downwardly from the cradle. The ends of the straps are secured to pillars 28 on the cradle by cam-levers 26 eccentrically pivoted to links on the pillars. A clutch-part 9 or a chuck on the drill spindle may be brought into engagement with the shaft 10 of the aircompressor 11 which preferably comprises two pistons 15 driven by an eccentric 17 and a transverse slot 16. The inlet ports 18 are closed by light circular plates 22 and the non-return outlet valves 19 are connected to a reservoir 20 which may also include a filter. A pipe 21 leads from the reservoir and carries at the outer end a connector suitable for attachment to a tyre valve for inflation of the tyre. A paint sprayer may also be provided with a valve of this type for attachment to the pipe 21. A blow-off valve 23 and pressure gauge 24 are provided on the reservoir. For driving tools such as drills, grinding discs or brushes the drill 5 is reversed by releasing the straps 6 or the nut 12 and a chuck is inserted in the hollow end of the spindle, the chuck receiving either the tool or one end of a flexible shaft whose other end carries a chuck for the tool. The drill 5 may also be removed from the table 1 and applied to the work by means of handles 25. A second table 2 is pivoted on the legs 3.
Patent GB-1023639-A (GB)
Title: Method of and apparatus for producing coated thermoplastic tubes and containers
IPC: B29C48/09
Filed: 1964-09-02
Abstract: 1,023,639. Extruding tubing; blow moulding apparatus. CONTINENTAL CAN CO. Inc. Sept. 2, 1964 [April 1, 1964], No. 35968/64. Heading B5A. To a tube of thermoplastic material advancing through an extrusion die there is applied, by feeding the coating material radially directly on to the tube within the die, at least one exterior coating of another thermoplastic material. In the extrusion of a tubular parison to be blow moulded to form a bottle a coating of thermoplastic material, e.g. polyvinylidene chloride, is applied from an extruder head 12 (Fig. 1, not shown) via a passage 31 and radially through an annular orifice 30 on to a tube T of polyethylene or polystyrene passing from an extruder head 11 through the annular passage between a mandrel 18 and a die body 23. The extruded parison, the thickness of which may be controlled by axial adjustment of the mandrel 18, is clamped between the halves 36, 37 of a blow mould 35 and a blow needle 45 advanced radially inwardly by a piston device 47 for blowing air into the parison to form a bottle; which discharges from the mould when the mould halves 36, 37 separate. A second coating of thermoplastic material MO, e.g. polyethylene, may be applied to the tube T from a third extruder head 55. By the use of valve means the materials MS and MO may be so applied that the blown bottle has a body portion coated with both materials, and a neck portion coated with the material MO only.
Patent GB-173965-A (GB)
Title: Improvements in or relating to the manufacture of a material consisting of moler, infusoria earth and the like and suitable for the manufacture of light concrete
IPC: C04B32/00
Filed: 1920-12-22
Abstract: 173,965. Dalhoff, L.G., and Lunn, W. K. Dec 22, 1920. Clay and like plastic compositions.-Porous bodies for use as aggregates for light concrete are made by sintering at about 1200‹C. a mixture of moler and granite, gneiss, basalt, or other rock containing felspar. Instead of ordinary moler, black moler or a mixture of clay and kieselguhr may be used.
Patent GB-1015428-A (GB)
Title: Improvements in or relating to processes of burning liquid or gaseous fuels and boiler furnaces for carrying out the processes
IPC: F23C9/00
Filed: 1962-09-21
Abstract: 1,015,428. Boiler furnaces. O. BERGER. Sept. 21, 1962 [Sept. 27, 1961], No. 36037/62. Heading F4B. Liquid or gaseous fuel and air are injected at 2 into an elongated box-shaped combustion chamber 1 at one end, parallel to a long side of the chamber so that the housing fuel is deflected by two opposing long sides and the end walls of the combustion chamber to form a vortex contacting these walls, and the waste gases escape at the end of the combustion chamber near the burner or from a long side of the chamber not contacted by the vortex. In a boiler having a burner 2 mounted on a door 5 closing a water-jacketed box-shaped combustion chamber, the gases flow round the burner 2 within a recess formed on the inside of the door to smoke tubes 3 extending lengthwise of the combustion chamber. In a modification, Fig. 3, not shown, the waste gases flow to lengthwise flue tubes through a recess in the door without flowing round the burner. In a further embodiment, Figs. 5 and 6, the waste gases flow from one long side of the combustion chamber through flue tubes 3 extending at right angles to the direction of delivery of the burner 2. Water tubes 9 are arranged to form a grate for combustion of solid fuel at the bottom of the combustion chamber.
Patent GB-389597-A (GB)
Title: Improvements in lighting apparatus especially suitable for "spot-lighting"
IPC: F21V9/40
Filed: 1931-12-31
Abstract: 389,597. Spotlights and like lightprojectors. CARLILL, D. H., 113, Palace View, Bromley, Kent. Dec. 31, 1931, No. 36070. [Classes 75 (iii) and 75 (iv).] Lantern screen ; trunnion and like mountings. -A spotlight or like light-projector wherein colour-changing and similar effects are obtained automatically, simultaneously with various movements of the projector, comprises a casing fitted with one or more lens projector systems and with a single power-unit adapted to operate means for rotating a colour-changing device around the light source and for effecting vertical oscillating and side-to-side movements of the casing independently of a supporting base. In the form shown, a skeleton casing 1 is pivotally mounted on a standard 3 which is rotatable in a bearing 4 on a base 5, and contains an electric lamp bulb 7 in association with a reflector 8, a condenser lens 9, a projector lens 10, and a drum 11 fitted with panels 12 of coloured glass or mica. The drum is carried by a vertical spindle 13 and is rotated by means of a pinion 16 and a crown wheel 17, sprockets 19, 21 and an endless chain 20, gear wheels 23, 24, 26, pinion 28, gear wheel 30, and the reduction gearing of an electric motor 34. The casing 1 is moved from side to side by means of the gear wheel 23, a cranked axle 22, sprockets 35, 37 and an endless chain 36, a crown wheel 39, and a pinion 40 on a spindle 41 which extends vertically through the bottom of the casing and carries a horizontal disc 42 to which is pivotally connected a link 43 pivoted to one arm of a bell-crank lever 44 which is pivoted on a boss 44a on the bottom of the casing, the other arm of the bell-crank lever being pivoted to a link 45 which is hingedly and pivotally connected by a coupling 46 to a standard 47 fixed to the base 5. The casing is oscillated vertically by means of a rod 53 connected to the crank-pin of the cranked axle 22, a knuckle joint 52, and a vertical rod 51 over which the casing is slidable and the jawed lower end 50 of which carries a grooved roller 49 adapted to engage in a hookended track 48 rigidly secured to the standard 3. The drum 11 may be surrounded by a similar drum, which may be stationary or movable, and one or more of the walls of the casing may be provided with means to produce a dimming or obscuring effect. The casing may be suspended by its base from a fixed overhead part, or it may be pivotally suspended in the jawed lower end of a skeleton-like frame. For effecting the vertical oscillating of the casing the latter may be fitted externally with one or more wheels eccentrically mounted on a shaft driven by the electric motor and adapted to contact with and ride upon fixed upstanding walls or other abutments carried by the base- Also, the base may be constituted by a wheeled carriage adapted to be driven up and down a track by one or more of its wheels being driven by a flexible shaft or the like from the electric motor.
Patent GB-1314593-A (GB)
Title: Web handling apparatus
IPC: G03D15/04
Filed: 1970-07-24
Abstract: 1314593 Film splicing apparatus EASTMAN KODAK CO 24 July 1970 [24 July 1969] 36076/70 Heading G2C In a web-handling apparatus such as a film splicer, the placing of a web end in a predetermined location on a support surface automatically operates suction means which hold the web in that position. As shown, the support surface, which is just wide enough to take the film, and which has sloping edges so that the film can be guided into position in the dark, is formed in two sections 16, 18, on either side of a separator blade 20. The two film-strips 72 to be joined are placed on the respective sections 16, 18, with their ends abutting against blade 20. Within each section 16, 18 is a vacuum chamber 28, 32, connected to the film support surfaces by openings 30, 34 respectively. The chambers are also connected via valves 40, 42 to a manifold 44. Respective pilot openings 52, 62 are provided in the support sections 16, 18 leading via lines 54, 64 to a second manifold 56. When a film-strip is placed in position, as soon as its end covers a pilot opening 52 or 62, the decreased pressure in line 54 or 64 actuates a switch 60 or 66 which opens a valve 40 or 42. This puts the chamber 28 or 34 into communication with manifold 44, so that suction is applied to the film-strip, so holding it firmly in position. The splicing head 68 is now lowered, engaging and pushing down the separator blade 20 against the action of a spring 22, and applying splicing tape to the film ends in known manner.
Patent GB-1089759-A (GB)
Title: Improvements in or relating to tool traversing mechanism controlled by templates or patterns
Inventor: LAWS ARTHUR ERNEST
IPC: D05B39/00
Filed: 1965-08-23
Abstract: 1,089,759. Sewing machines. TRUBENISED (GREAT BRITAIN) Ltd. Aug. 23, 1966 [Aug. 23, 1965], No. 36143/65. Heading DIG. [Also in Division F2] A sewing machine workholder drive comprises a driven roller bearing against a template, a driven gear pinion coaxial with the roller, a gear member mounted adjacent an internal corner of the template for engagement by the pinion when the roller enters the corner and a lost motion connection to ensure that the roller will dwell in the corner until the gear member becomes effective to act as an abutment against which the pinion can work to drive the roller out of the corner. As shown, a magnetised roller 2, co-operating with a template 1, is rigid with a driven shaft 3 and a gear pinion 4. A gear pinion 6, situated at an internal corner of the template to mesh with pinion 4, is journalled on a fixed pin 11. A pin 12 depends from the head of pin 11 into an arcuate slot (13) formed in pinion 6. A helical spring biases pinion 6 counterclockwise to engage one end of slot (13) with pin 12. When pinion 4 meshes with pinion 6, forward movement of shaft 3 ceases while pinion 6 is rotated clockwise until the other end of slot (13) engages pin 12. Pinion 4 then acts on stationary pinion 6 to drive roller 2 out of the corner. The dwell of roller 2 in the corner enables at least one stitch to be inserted thereat.
Patent GB-1005746-A (GB)
Title: Improvements in or relating to dry powders for sprinkling on freshly printed surfaces
IPC: B41M7/02
Filed: 1961-10-09
Abstract: 1,005,746. Set-off, preventing. W. BEUSHAUSEN. 9 October, 1961 [Oct. 15, 1960], No. 36144/61. Heading B6C. A dry free-flowing set-off preventing powder comprises limestone, marble, dolomite or barite particles having at least some particles within ranges of grain sizes between extreme limits of 8 to 40 microns, said particles being coated with an organic solid comprising palmitic, stearic, behenic or oleic acid, resinic acids, naphthenic acid or their salts, rosin or organic synthetic resins, paraffin hydrocarbons and waxes non- adhesive at room temperature. In one embodiment ground calcium carbonate is mixed with calcium stearate whilst in another example, comminuted dolomite rock is mixed with finely ground rosin prior to heating the mixture to a temperature such that the rosin fuses and envelopes the rock particles. In yet a further embodiment molten stearic acid is sprayed as a vapour into an agitated mass of ground spar (BaSO 4 ).