baber/WOPTO huggingface dataset:
Patent GB-490312-A (GB)
Title: Improvements in electrical circuits incorporating phase inverters
IPC: H03F3/28
Filed: 1937-03-23
Abstract: 490,312. Valve amplifying circuits. GENERAL ELECTRIC CO., Ltd., and ASPIN, J. J. E. March 23, 1937, No. 8508. [Class 40 (v)] In a circuit arrangement of the kind in which two voltages in phase opposition are derived from a single A.C. input voltage, the reversed phase output is obtained from the output circuit of a valve 7 to whose input 1, 2 the signal is applied while a reverse feed-back is provided between the output and input of the valve 7 in order to reduce its amplification effectively to unity. Thus, the input voltage is applied directly to terminals 1, 2 and thence to 3, 5 while the output voltage across 4, 5 is in opposite phase, the two outputs being applied to a pushpull pair of amplifiers 10, 11. Reverse feedback on the inverter valve 7 is derived from the common resistance 9, the grid bias circuit 16, 17 being separate therefrom to prevent distortion due to overbiassing by resistance 9. If the input of 7 is taken to a tapping on resistance 6, the feed-back must be such that the amplification of valve 7 is not unity but such as will produce a voltage across 4, 5 equal to that across 3, 5.
Patent GB-350942-A (GB)
Title: Improvements in frames for lampshades
IPC: F21V1/02
Filed: 1930-03-17
Abstract: 350,942. Lamp shades. AYLWARD, A. D., Elsinore, Eastcote Road, Ruislip, Middlesex. March 17, 1930, No. 8539. [Class 75 (ii).] Securing shades to holders.-In a lamp shade in which a frill is mounted upon a ring-like frame or rim so as to be readily detachable therefrom, the frill is carried by a resiliently extensible member adapted to form a loop and be stretched to engage an external circumference channel or the equivalent formed on the rim so as to locate the extensible member in a definite position. In the form shown, the rim 1 is constructed of flat sheet metal strip and is formed with a concave channel 4 to receive a closely wound helical wire spring 7 adapted to be threaded through the hem of the frill and its ends joined together by means of a hook 8 and an eye 9. The rim 1 may be circular, hexagonal, octagonal, square, or other shape in plan and may be supported from a central member 2 by means of wire spider arms 3 soldered to the rim and into radial sockets 2a on the member 2. A lamp shade may be formed from a number of such rims and frills, the resiliently extensible member may be a length of rubber elastic, and the concave circumferential channel may be replaced by external ribs or projections which may be located only at the corners of a polygonal shaped rim.
Patent GB-541214-A (GB)
Title: Reciprocating driving mechanism
IPC: F01L21/04
Filed: 1940-05-13
Abstract: 541,214. Valve gear for air compressors. HOLMAN BROS., Ltd., and MILLS, E. C. May 13, 1940, No. 8589. [Class 8 (i)] [Also in Group XXVI] Distributing valve gear is located in a casing 12 at the end of the motor cylinder 8 and actuated by a rod 14 slidable in a wall passage and having projections 15 struck by the piston at the ends of its stroke ; the rod actuates a lever 21 carrying a pin which forms a pivot of a spring toggle which shifts the valve so that each end of the motor cylinder is alternately connected with compressed air supplied to the valve casing 12 and with an outlet passage 38 leading to the delivery chamber of a ventilating air compressor 6 actuated by the motor. The compressor has inlet and outlet valves in a laterally arranged chamber, it may be actuated by a handle 54 in the absence of pressure fluid for the motor, the valve casing being then opened to atmosphere by a relief valve. The valve actuated by the rod 14 may be a pilot valve actuating a piston distributing valve.
Patent GB-1081273-A (GB)
Title: Machine for coiling strip metal
Inventor: CAVAGNERO ERMAN VINCENT
IPC: B21C47/08
Filed: 1966-02-28
Abstract: 1,081,273. Winding and reeling. TORRING- TON MANUFACTURING CO. Feb. 28, 1966, No. 8652/66. Heading B3E. Apparatus for coiling strip metal comprises three driven rolls which arcuately bend the strip in one direction to cause it to coil upon itself, support means to receive the strip from these rolls, and a recoil roll between the coiling rolls and the support means which engages the strip to bend it slightly in a direction opposite said one direction at least during the initial part of the coil formation. Metal strip is fed in by driven rolls (32), (34), Fig. 2 (not shown), the lower roll (34) being carried in bearings supported by hydraulic cylinders (42) carried by a bridge vertically adjustable by a jack (46), (48). The vertical positions of the rolls (32), (34) is indicated by discs 62, 64 bolted to the roll bearings. From the feed rolls (32), (34) the strip passes to the three driven rolls of a roll assembly 20 which serves to coil the strip upwardly. The lower rolls of the assembly 20 are supported in bearing blocks 92, (94) which are adjustable to and from the upper roll by manually-operated screw means and are rapidly withdrawn from the upper roll by an hydraulic cylinder (106), Fig. 5 (not shown), operating through link and crank means. The rolls are provided with position indicators. A slight downward bend is applied to the leading end of the strip by a recoil roll (166), Fig. 4 (not shown), rotatable about an axis 30 and carried by an adjustable eccentric. The strip coils on to driven support rolls 24, 26, 28, bridge members extending between the rolls. As the coil reaches its maximum size it engages rolls (134), (136), (138), Fig. 8 (not shown).
Patent GB-311871-A (GB)
Title: Improvements in mechanical trip devices applicable for use with electric switches and for other purposes
IPC: H01H71/50
Filed: 1928-03-22
Abstract: 311,871. English Electric Co., Ltd., and Bacon, H. March 22, 1928 Linkwork.-In trip-release mechanisms the force exerted by the latch retaining a tripping lever is kept small without decreasing the force exerted by the tripping lever on its controlled mechanism by arranging a spring to act upon the lever at a distance from its pivot substantially in line with the pivot, the anchoring point of the spring being movable to enable the line of action of the spring to be adjusted. As shown in Fig. 1, the twoarmed tripping-lever 1, 7 is pivoted on a ball race 2 and has the arm 7 retained by a roller 8 on a pivoted latch 6 against the action of a spring 4 connected to the arm 1. The lower end of the spring 4 is secured to a nut 11 on a shaft 12 so that it can be moved almost but not quite to a dead-centre position in which its axis crosses the pivot 2. In this position, it exerts only a small force on the retaining latch but, on release of the tripping lever, the rapid increase, of its turning moment arm about the pivotal centre causes a rapid acceleration of the tripping lever, which can now. engage the arm 3 with considerable force, so actuating the controlled mechanism. The adjustment of the lower end of the spring may alternatively, as shown in Fig. 4, be effected by a rotatable crank 17, which is connected to the spring by a curved link 13 straddling the shaft carrying the tripping arm. In this modification, two concentric springs are employed for increased strength. As an alternative to the ball-bearing pivot for the tripping arm, two circular rings 15 (Fig. 5) may be placed on the spindle at the sides of the arm 1, locating the arm between the spindle supports 16.
Patent GB-254028-A (GB)
Title: Improvements relating to electric liquid heaters
IPC: F24H1/10
Filed: 1925-04-01
Abstract: 254,028. Wintle, H. April 1, 1925. Heating by electricity. -A liquid heater comprises a U-tube A closed at the end of one leg and having an immersion heater G of known type inserted into the end of the other leg so as to leave an annular space between the heater and the tube for the passage of liquid, the joint between the end of the tube and the heater being made water-tight and inlet and outlet connections being provided on the tube. The heater G comprises a tube containing a resistance, the tube being closed at one end and having means for electrical connection at the other end. A spiral fin K may be fitted to the heater and a heater may be fitted in each leg of the U-tube. A number of U-tubes may be connected in series or parallel. A tap or plug may be fitted at H for draining or cleaning purposes.
Patent GB-725593-A (GB)
Title: Vibrating apparatus
IPC: B28B1/087
Filed: 1953-03-30
Abstract: 725,593. Vibrating apparatus. BAKKER, J. March 30, 1953, No. 8750/53. Class 80 (4). A vibratory apparatus particularly for vibrating concrete or like plastic hardening material comprises a vibrating surface composed of a number of separate parts 1, 2, 3, 4 adjacent each other, mounted upon springs 6, 7 and each having a separate rotating eccentric mass 11 mounted thereon. The separate masses 11 are coupled through their shafts 10 with each other but out-of-phase so that a multiple of the frequency of oscillation of each mass is transmitted to the material to be vibrated.
Patent GB-227323-A (GB)
Title: Machine for grinding and/or polishing the edges of plates of glass, marble and the like
IPC: B24B9/10
Filed: 1924-04-07
Abstract: 227,323. Weber, K. A. April 7,1924. Bevelling.-A machine for grinding and polishing square or bevelled edges on plates of glass, marble, &c. comprises a frame 12 upon which are supported wooden or other rails 11, the plates 13 resting on edge on the rails and being moved therealong over grinding- wheels 40, and a polishing - wheel 42 which project through spaces 38 in the rails. The plates are supported between guides 14, 15 and are moved along the rails by wooden arms 22 engaging the rear edges of the plates and carried by an endless chain 18. When several plates are mounted side by side, spacing-members 16, Fig. 8, which may be of wood, are employed. The chain amd the wheels 40, 42 are driven through gearing from a main shaft 37 driven by a motor 375. The wheels are pressed upwards against the plates by counter-weights 65, Fig. 4, carried by levers 63 which engage, by means of adjustable rods 62, carriages 60 pivoted at 61 to the frame and having mounted thereon the bearings for the wheel. The grinding-wheels 40 run in water contained in tanks, and the polishing-wheel 42 is provided with polishing-material from a tank 59 by means of a rotary brush 58. The grinding-wheels may be grooved as shown in Fig. 8 ; when the plates are to be bevelled, either the plates or the grinding-wheels may be inclined at the required angle. In a modification, the plates are moved by a bracket, which has a projection engaging the chain and on its forward face has a notched soft rubber spacer to engage and push the plates, and at its rear face has spring members which grip and space the forward ends of the next group of plates. The rails have rubber surfaces to support the plates and the guides comprise tracks engaged by members having thereon spacing and supporting members for the plates. The pressure of the plates upon the grinding and polishing wheels may be increased by weights or springs.
Patent GB-550454-A (GB)
Title: Improvements in pharmaceutical compositions
IPC: A61K33/24
Filed: 1941-07-12
Abstract: 550,454. Pharmaceutical compositions. LEDERLE LABORATORIES, Inc. July 12, 1941. No. 8841. Convention date, Sept. 25, 1940. [Class 81 (i)] A fungicidal and deodorant composition for application to the skin comprises an aqueous alcoholic solution of a cadmium salt and a wetting agent. Suitable cadmium salts are the chloride, bromide, acetate, salicylate and benzoate. Suitable wetting agents are alcohol sulphates, sulphated fatty acid amides, alkylaryl sulphonates, and sulphonated esters of alcohols and dibasic acids and the salts of these compounds. The sodium salt of the dioctyl esters of sulphosuccinic acid is a preferred wetting agent.
Patent GB-1298782-A (GB)
Title: Vials
Inventor: JACOFF SYDNEY
IPC: G01C9/28
Filed: 1971-04-06
Abstract: 1298782 Spirit level vial GREAT NECK SAW MFG Inc 6 April 1971 8863/71 Heading G1F A vial 10 for a spirit level comprises a body of substantially cylindrical external shape having a cavity including a portion 20 curved away from the longitudinal axis of the vial body, a key (13), Fig.3 (not shown) being provided on the body for attaching the vial to a support. As shown, the vial which may be of plastics material and is partially filled with liquid to form a bubble 21 is provided with cylindrical cavity portions 22 on each side of an enlarged portion 20 and with a closure plug 18 opposite a transverse wall 16 which is integral with the cylindrical body. The vial may be supported in an opening (5) of a web 4 of a spirit level body 2 by a pair of covers 6 which are provided at least with a groove (11) having a slot (12), Fig. 3 (not shown) for receiving the key (13) on the vial, the covers 6 being removably secured by screws to the web 4.
Patent GB-677474-A (GB)
Title: Musical instruments
IPC: G10B1/04
Filed: 1950-04-11
Abstract: 677,474. Electrical musical instruments; organs; pianofortes. CENTRAL COMMERCIAL CO. April 11, 1950. [April 22, 1949] No. 8904/50. Class 88 (ii). A keyboard musical instrument is combined with an electrical musical instrument played from the same keyboard by means of a row of plungers 31 mounted in a housing 18 which is placed above the back of the keys, its position being adjusted by means of screw-threaded sleeves 21a and feet 24, Fig. 4, or by means of screws 66, Fig. 9. Each plunger 31 is attached to a spring 37, Fig. 5, which is secured at its lower end to a fixed terminal and normally touches an earthed contact 35. On depression of the associated key, the spring 37 touches a contact 36-to bring into operation an associated oscillating circuit. Stop switches 44 have similar plungers 40 and are held in either position by leaf springs 53. The volume is controlled by a knee-operated lever 62, Fig. 3, or by a pedal. The electrical instrument may be used with.a portable keyboard 81, Fig. 11.
Patent GB-987492-A (GB)
Title: Improvements in bungs for barrels or the like
Inventor: FOX FRANK
IPC: B65D39/04
Filed: 1961-03-11
Abstract: 987,492. Bungs for barrels; stoppers. ROBINSON BROS. CORK GROWERS Ltd. Feb. 15, 1962, [March 11, 1961], No. 8993/61. Heading B8T. A bung for a barrel is made of a resilient  plastics material, e.g. polythene, and is annular with an end wall 11 which is weakened along a circular path 13 aligned with the bore 10 of the bung. The weakened path is interrupted in one or more places by a rib or buttress 14, one of which acts as a hinge between the wall 11 and the bung when a draw-off tap is driven into the bore, and prevents the wall being completely detached and falling into the barrel interior. The bung may comprise two annular walls connected by radial ribs 15.
Patent GB-181845-A (GB)
Title: Improvements in magneto electric generators
IPC: H02K21/18
Filed: 1921-03-24
Abstract: 181,845. M.-L. Magneto Syndicate, Ltd., and Watson, E. A. March 24, 1921. Magneto-electric machines. - A magnetoelectric generator is provided with a cobalt-steel rotating magnet and a single stationary armature having laminated pole-pieces and core integral with one another. Fig. 1 show the magnet A having cheeks A<2>, A<3> each having two diametrically opposite extensions A<4>, A<5> on which are mounted laminated pole-pieces B, Fig. 3, secured by dove-tail pieces A<10> or by bolts or studs H. A sleeve A' of non-magnetic material may surround the magnet or form a seating for the extensions.
Patent GB-564456-A (GB)
Title: Improvements in or relating to arrangements for feeding bees
IPC: A01K53/00
Filed: 1943-06-07
Abstract: 564,456. Bee-keepers' appliances. BATEMAN, J. T. June7,1943, No. 9106. [Class 5 (ii)] A bee-feeding appliance comprises a syrup container a within the base of which are mounted concentric cylinders c, f. The inner cylinder, open at both ends, registers with an opening j in the hive quilt, k, and its other end is open to the annular chamber e. The outer cylinder f is spaced by lugs or the like from the base which may be a press-fit within the container a or soldered thereto.
Patent GB-1496415-A (GB)
Title: Screen
IPC: G03B21/60
Filed: 1975-03-05
Abstract: 1496415 Screens R TAKADA and A JOMA 5 March 1975 [18 April 1974 8 May 1974 10 Dec 1974] 9111/75 Heading G2X A screen comprises a fabric layer formed by weaving transparent fibre bundles 3, 4 of mean diameter in the range 0À01 mm to 1À0 mm and having a front exposed surface of textile weave, and a layer 5 of aluminium foil with a highly specular front surface joined to the rear surface of said fabric layer, the fabric layer having a fabric density of 40 to 150 pieces per 25 mm. Preferred fabric materials are glass fibre, methyl methacrylate (organic glass), and a variety of resins having a high light transmittance such as nylon, oriented polypropylene, polycarbonate, polystyrene, polyester, polyamide, polyethylene, acrylic resin, polyvinylidene chloride, polyvinylidene cyanide, polyfluoroethylene, and copolymer of polyvinyl alcohol and polyvinyl chloride. The manner of weaving may be plain weave, satin weave and twill weave and their modifications such as imitation weave, brocade weave and double weaves. 100 to 200 filaments of glass fibre having a mean diameter of 3 to 13 microns may be used to form a fibre bundle, and the fabric may have a thickness of about 0À2 mm with the aluminium layer having a thickness of 0À01 to 0À1 mm. The aluminium layer may be adhered to the fabric by an optically transparent adhesive such as epoxy resin adhesive, phenol resin adhesive, phenolic epoxy adhesive, nylon epoxy adhesive, or fluorine plastics adhesive. Alternatively, the aluminium layer may be vaporization-adhered to the fabric.
Patent GB-378359-A (GB)
Title: Screwless metal constructional sets
IPC: A63H33/10
Filed: 1932-03-30
Abstract: 378,359. Toy constructional sets. SCHMID, M., 80A, F³rtherstrasse, Nuremberg, Germany. March 30, 1932, No. 9188. Convention date, Nov. 9, 1931. [Class 132 (iii).] Screwless metal constructional sets consist of hollow elements a of sheet metal &c. open at the top, of rectangular, square, or other shape and having holes b. The elements are secured together by pins passing through the holes b and held by frictional perforated discs of any suitable material. The dimensions of the elements are chosen so that they fit one inside another as seen in Fig. 3, and together fit into the cover f of a matchbox or the like.
Patent GB-1500116-A (GB)
Title: Preparation of coating composition of specified colour
IPC: B44D3/00
Filed: 1975-03-05
Abstract: 1500116 Mixing in proportion KANSAI PAINT CO Ltd 5 March 1975 [8 March 1974] 9210/75 Heading B1C To ensure that the proportions of solvent and coloured base coating compositions for making up a coating composition mixture of a desired colour, are accurately measured out, an apparatus Fig. 3 comprising a container 33 of constant inner cross-section, a vertically movable probe 12, 14 (whose end 12 may be of a different form than that shown) connected to a pointer 13 is used in conjunction with a card 1, Fig. 1, bearing one or more scales of graduation lines, the spacing between lines 3, 4, 5, 6 and 7 being proportional to the volumes of coloured base coating compositions to be measured out in order of decreasing volumes and the spacing between line 2 (the zero line) and line 3 being proportional to the volume of solvent. A further solvent line 3' may be included amongst the other lines. A colour identifying portion (8) Fig. 2 not shown, which may be provided on the reverse side of the card, displays the final product colour and extends to one edge of the card, which edge may be provided by a cut out or an aperture in the card. The pointer 13 is set to each line in turn and the liquid materials added in turn until, each time, the liquid touches the probe end 12. The apparatus base 34 may have adjustable legs 35, 36 and a spirit level 37. The slide 19 supporting the probe and pointer may be moved in groove 21 by a feed screw arrangement, Figs. 4 and 5 not shown, connected to handle 27 by bevel gears. The probe shaft may be adjustable relative to pointer 13 at 15 to 17 to enable further solvent to be added during measuring without altering the proportion of coloured base coating compositions. The card may be used horizontally, provided that the arrangement of feed screw and pointer &c is adapted to this end.
Patent GB-550841-A (GB)
Title: Improvements in or relating to multi-throw crankshafts
IPC: D03D51/00
Filed: 1941-07-23
Abstract: 550,841. Crankshafts. ABBEY, A. (Aktiebolaget Svenska Kullagerfabriken). July 23, 1941. No. 9306. [Class 80 (ii)] [Also in Group XXII] A multi-throw crankshaft is divided at an intermediate position between two crank throws the crank cheeks 12, 13 adjacent the division being connected to the adjacent parts 1, 2 and to the crankpins by curved portions 14 .. 17 of relatively large radius. The ends of the shaft portions where it is divided are connected together by a removable coupling. The arrangement permits the use of undivided ball bearings for the crank pins and for the main bearings 5, 6, the bearing rings being threaded over the shaft from the line of division. Preferably the crank-shaft is machined in one piece and then divided. The invention is suitable for loom crank-shafts, the end crank cheeks 9, 10, being radial.
Patent GB-715197-A (GB)
Title: Jet propulsion engines
Inventor: CHEETHAM HARRY ALAN
IPC: F23R3/00
Filed: 1951-04-21
Abstract: 715,197. Jet propulsion plant. LUCAS (INDUSTRIES), Ltd., J. April 15, 1952 [April 21, 1951; Aug. 2, 1951], Nos. 9337/51 and 18303/51. Class 110(3) [Also in Groups XI and XII] A jet propulsion engine has reheat combustion equipment which comprises a nozzle a, b supplying the reheat fuel, an igniter burner f, and a duct h for isolating from the main hot gas stream the portion of the stream into which the reheat fuel is injected, the duct h being open at both ends. The nozzle supplying the reheat fuel is an annular tube a, the fuel being injected through the apertures b. The fuel supplied to the injector burner f passes through a vapourizer e which may be mounted at the end of a conical plug i extending into the duct h, Fig. 2. A swirl type burner may be used in place of the vapourizer type of igniter burner. In another embodiment, the igniter burner is of the vapourizer type and is annular in form, and a supplementary supply of reheat fuel is injected through a nozzle disposed at the end of a conical plug projecting into the duct h.