baber/WOPTO huggingface dataset:
Patent GB-794996-A (GB)
Title: Improvements in electronic circuits
Inventor: HONE JOHN GRAHAM ELLIOTT
IPC: G05F1/52
Filed: 1955-05-27
Abstract: 794,996. Multi-stable state circuits. RACAL ENGINEERING, Ltd. April 18, 1956 [May 27, 1955], No. 15318/55. Class 40 (6). A circuit for controlling the direction of current flow through a load comprises two bistable trigger circuits each composed of two reciprocally coupled discharge tubes, the two trigger circuits being interconnected with a load so that when the two trigger circuits are each in a predetermined stable-state current flows through the load in one direction and when the circuits are triggered so that they are in their second stable state the direction of current flow is reversed. The Figure shows a circuit in which tubes V1, V2 and V3, V4 are interconnected each to form a bi-stable trigger circuit and the load is connected between the high-voltage ends of resistors R1 and R5. If initially tube V1 is conductive then tube V2 will be cut off and will control the second trigger circuit so that tube V4 is conductive and tube V3 will cut off. Current will thus flow through tube V4, resistor VR9 and load through tube V1 to earth. When the circuit is triggered so that tube V1 is cut off tube V2 will conduct and tubes V4 and V3 will be cut off and conducting respectively so that current will then flow through tube V3 the load and tube V2 to earth, i.e. in the opposite direction through the load. The load may comprise a relay and the magnitude of the current flow in the two directions may be adjusted by variation of resistors VR9 and VR3 respectively.
Patent GB-1391899-A (GB)
Title: Mining machine
IPC: E21D9/12
Filed: 1973-03-30
Abstract: 1391899 Feeding conveyers LEE-NORSE CO 30 March 1973 [14 April 1972] 15407/73 Heading B8A [Also in Division E1] A mining machine 1 comprises a chassis 2 carrying a boom 11 which carries a rotary cutter head 14, and gathering means 7 comprising a pair of counter rotating discs 67 with vanes 71 extending at an angle to the radius of the respective discs in the direction counter to the rotation of the disc, and fences 69 under which the vanes pass and which co-operate with them to guide material mined by the cutter on to a conveyer 4 which extends along the chassis. The discs 67 are circular but elliptical discs (81), Fig. 6 (not shown) may be used instead.
Patent GB-110755-A (GB)
Title: Improvements in Variable Speed Gearing.
Inventor: FAIRWEATHER HAROLD GEORGE CRUI
IPC: F16H29/04
Filed: 1917-10-23
Abstract: 110,755. Fairweather, R. G. C., (Leffler, A.). Oct. 23, 1917. Ratchet gearing.-In variable-speed gearing of the kind in which the oscillation of a swash-plate conveys rotation to the driven shaft through ratchet gearing. Projections 15 on the swashplate part 9 carry rollers engaging cam-slots 17 on clutch segments 18, or on clutch rings arranged side by side, which are oscillated and carry friction pawls 24 driving, a drum on the driven shaft in one direction. The pawls 24 are pressed into engaging position by springs 28 and bear against shoes 16 capable of limited sliding motion on the segments 18 between pins 27. Clutch members for alternative reverse drive may be provided.
Patent GB-796692-A (GB)
Title: Turbine driven blowers or pumps
IPC: F02C6/12
Filed: 1955-05-27
Abstract: 796,692. Centrifugal blowers and pumps; gas turbine plant. BUCHI, A., and BUCHI, Jun., A. May 27, 1955 [June 3, 1954], No. 15409/55. Classes 110 (1) and 110 (3). A turbine-driven blower or pump comprises an impeller and an overhung turbine rotor on a common shaft, the bearing housing extending axially from a central support into a hub portion of the impeller and the open end of the hub portion extending into the central support, the oil draining from the bearings being discharged centrifugally by an axially and radially outwardly directed duct into a circular oil collecting space situated around the open end of the hub portion and formed at least partly in the central support, and a further duct carrying the oil away from the collecting space. Fig. 1 shows a blower comprising an impeller 2 keyed at 9 to a shaft 8 and driven by a turbine rotor 1 attached to the shaft by bolt 10 and nut 10a. A thrust bearing collar 12 is tightened against a shoulder on the shaft 8 by means of the nut 10a and a sleeve 11. Oil is supplied to bearings 13 and 14 through an inlet 3a and ducts 4, and is returned by way of an annular passage 15 between the impeller hub and a fixed part 3 to an annular collecting duct 16, from which it flows by way of ducts 19 within radial struts 7 to a further annular duct 20 and thence through one or more ducts 21 to a discharge connection 21a. The annular passage 15 increases in diameter constantly, as shown, or by steps, so as to provide a centrifugal action impelling the oil towards the duct 16. Ventilation of the lubrication system is provided by one or more pipes 18. To prevent oil from overflowing from the duct 16 into a labyrinth seal 17, the latter is connected through ducts 17a within radial struts 7 to the blower volute 6. The ducts 19, 20, 21 may be replaced by ducts leading directly from the duct 16 to the connection 21a. The blower may be inverted, the ducts 19, 20 and 21 then being used for ventilating the lubrication system. The oil is then discharged either through the pipe 18 or through an additional annular collecting duct which is below, and supersedes, the duct 16, followed by additional generally horizontal ducts, the pipe 18 being replaced, in the latter case, by a screw plug. In the former case, the blower may alternatively be arranged with the shaft horizontal. In the latter case, the blower may alternatively be arranged with the shaft horizontal or upright, the additional ducts then being used instead for ventilating the lubrication system and the duct 16 reverting to its normal function.
Patent GB-539917-A (GB)
Title: Improvements in and relating to weighing apparatus
IPC: G01G23/00
Filed: 1940-10-18
Abstract: 539,917. Weighing-apparatus. BEST, C., and MOLINS MACHINE CO., Ltd. Oct. 18, 1940, No. 15439. [Class 143] In a weighing-apparatus the weigh beam 1 is mounted on a threadlike or striplike tensioned element 7 having two aligned portions a, b and being crooked against locating devices (e.g. grooved pulleys 9, 10) carried on the weigh beam. As shown, a thin wire 7 is secured at one end by a clamp 8 and passes horizontally over a V-notch 3, round -the grooved pulleys 10, over a V-notch 3<SP>1</SP>, round a grooved pulley 11 and thence vertically upwards to a clamp 12 suspended from tension a spring 13 adjustable as described in Specification 527,983. The scale pan is suspended from the wire by a clamp 17 which is provided with lugs 18 situated loosely within eyes 19 so as to avoid excessive movement and damage to the wire under accidental shock. Lateral displacement oil the beam is prevented by pillars 20 fixed to the frame and entering holes in the beam. The wire 7 is clamped to the beam by screws 22 after the apparatus has been set up and adjusted. A pointer 6 co-operates with a calibrated scale 5. In a modification wherein the beam has a pan at each end pulleys are mounted at both ends of the beam and the wire passes diagonally from one end to the other. Specification 528,239 is referred to.
Patent GB-395852-A (GB)
Title: Improvements in starting devices for synchronous alternating electric current motors
IPC: H02K7/118
Filed: 1932-06-01
Abstract: 395,852. Motors. CHEETHAM, G. A., Hamewith, Westmorland Road, Urmston, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. June 1, 1932, No. 15559. [Class 35.] Motors with unwound iron armatures for electric clocks &c. of the type comprising a toothed rotor revolving between toothed polepieces the motor is started by a pin carried on a weighted or spring- controlled lever and engaging with the teeth of the rotor. In the arrangement shown in the Figure the pin 14 is mounted on a weight 13 on the end of an arm 10 journalled on the spindle of the minute hand of the clock and actuated by a knurled knob. The weight 13 is formed with a notch 15 engaging a stop 16 so as to limit its movement. A form in which the lever is controlled by a spring the tension of which is adjusted is also described. In either form the pin 14 is formed so that it can be bent to engage the rotor teeth to the right extent.
Patent GB-1431028-A (GB)
Title: Synchronising device for changespeed gears of motor vehicles
IPC: F16D23/02
Filed: 1974-04-09
Abstract: 1431028 Synchronizers DR ING hcF PORSCHE AG 9 April 1974 [10 April 1973] 15640/74 Heading F2C In a split-ring synchronizer for a motor vehicle gearbox in which movement of a sleeve 6 to bring teeth 10 into contact with a friction surface 15 of a split-ring 11 causes this ring to contact a nose 18 of a block 19, this block 19 moves to contact one end of a spreader band 21 which has an abutment 27 fixed to it, this abutment engaging a side 31 or 33 of a slot 29 of a hub portion 13 of the synchronizing device to cause a surface 22 of band 21 to engage the inner surface 20 of split-ring 11 and so prevent further movement of sleeve 6 until synchronism is achieved and the ring 11 can be contracted. The abutment 27 has a perpendicular side 30 which gives less synchronizing effect than inclined side 32, this perpendicular side being used in engagement of low gear with the vehicle at rest. Both sides may be inclined (Fig. 10, not shown) or curved (Fig. 8, not shown) when the synchronizer is for engaging a higher gear. The abutment 27 shown engages slots on the sides of band 21, but a pin-and-hole connection may be used instead (Fig. 12, not shown). The spreader band may be circular or it may have a different radius of curvature on each side of abutment 27.
Patent GB-690726-A (GB)
Title: Improvements in or relating to gates for cinematograph projectors
IPC: G03B1/56
Filed: 1951-07-02
Abstract: 690,726. Kinematograph apparatus. STEATIT-MAGNESIA AKT.-GES. July 2, 1951 [April 21, 1951], No. 15645/51. Class 97 (i). A film gate has fixed guides for one edge of a film inserted laterally without opening the gate, guides for the other edge being movable to permit insertion of the film. As shown, one gate member 2 has a channel 2a and an aperture 3. The other member is pivoted about a horizontal axis at the bottom and is detachably secured at its upper end so as to be retractable for cleaning but is left in position during film threading. The film is engaged by fixed edge guides 4, 5 and other edge guides 8, 9 formed as bent-up end portions of pivoted levers 6, 7.
Patent GB-529284-A (GB)
Title: Improvements in and relating to clockwork toys
IPC: A63H30/06
Filed: 1939-05-26
Abstract: 529,284. Clockwork toys; steering. CONSTANTINOWITZ, E. May 26, 1939, No. 15688. Convention date, June 14, 1938. [Class 132 (iii)] A clockwork toy has steering means controlled by a member adapted to expand under fluid pressure arid connected by a pipe to a compressible member. Compression of bulb C expands bulb D to slide rod F against the action of spring G. A pin P on the rod F is thus moved away from the shaft H to release the clockwork motor. A link I also rotates the steering 'wheel L 3  and further expansion of the bulb D influences the steering further. When the actuating fluid is air, a valve may be provided in bulb C. In the Specification as open to inspection under Sect. 91 the invention is applicable to toys moving on water and in the air. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1013665-A (GB)
Title: Food packages
IPC: B65D81/34
Filed: 1963-04-22
Abstract: 1,013,665. Packages. GENERAL FOODS CORPORATION. April 22, 1963 [June 12, 1962], No. 15699/63. Heading B8C. A perforated package has a strip handle either integral therewith (Fig. 1) or welded thereto at either end (Fig. 4). A double line of perforations 13 and a slit 11 may be provided at one or both ends of the package to aid opening. The (suspension strip 8 may be reinforced by a headseam 10 or the slit 6 may be made by separation (hot-wire) welding whereby the rims of the slit are weld-connected.
Patent GB-831968-A (GB)
Title: Improvements in semi-conductor devices and circuits therefor
IPC: H01L29/00
Filed: 1956-05-22
Abstract: 831,968. Transistors. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 22, 1956 [May 20, 1955], No. 15730/56. Class 37. [Also in Group XL (c)] A semi-conductor device comprises a body 1 of one conductivity type with a hook or point contact collector 8 and an emitter 7, and further electrode means comprising two portions 3 and 4 of opposite conductivity type respectively spaced less than the diffusion length from the collector and emitter electrodes. As shown in Fig. 2, the body also has an ohmic base electrode 9. The arrangement provides two transistors in series whereby region 4 acts as a collector to point contact emitter 7 and region 3, which is connected to region 4, acts as an emitter to collector 8. Battery 13 applies a negative bias to collector 8 while base 9 is earthed, the arrangement being such that the PN junction at region 3 is slightly forward biased and that at region 4 is reverse biased. In the absence of a signal at emitter 7, there is substantially no current through collector 8 and the transistor is OFF. If a positive pulse is applied to emitter 7 via resistor 19, current passes through the two transistor sections providing an output across resistor 12 connected to collector 8. Current ceases when the pulse ceases. Fig. 3 shows a modification of the circuit of Fig. 2 in which a second series of input signals may be applied to regions 3 and 4. An output appears at collector 8 only when a signal is applied both to emitter 7 and to regions 3 and 4. The input signal consists of a 10-volt positive bias to emitter 7 and a 0.2 volt negative bias to regions 3 and 4. The arrangement may constitute a coincidence or AND circuit, or a mixing or OR circuit.
Patent GB-272561-A (GB)
Title: Improvements in or relating to the tamping of blasting bore holes
IPC: F42D1/24
Filed: 1927-06-13
Abstract: 272,561. German Montan-Ges. June 11, 1926, [Convention date]. Blasting tampings.-Sand, natural or artificial stone dust, or the like, used for tamping boreholes is wetted by the addition of about 15 per cent of water or other dust-binding liquid.
Patent GB-140287-A (GB)
Title: Improvements in or relating to brooms and similar brushes
IPC: A46B11/00
Filed: 1919-06-23
Abstract: 140,287. King, L. June 23, 1919. Floors, cleaning.-A reservoir broom a, which is supported on spring-mounted wheels h, is fitted with a pump c which automatically discharges liquid from the container b through a nozzle or orifices d during the forward sweeping movement. As shown, the pistonrod c<2> is connected by a lever f to a fork g with roller g<1> which contacts with the floor, whereby as the broom handle a<1> is depressed in sweeping the piston-rod is lowered and the liquid discharged. The return movement of the piston is effected by a spring; alternatively the downward movement of the piston is so effected. To remove dust or the like adhering to the bristles, a wire U-frame i pivoted at i' may be drawn over them, against the action of springs k, by a cord j.
Patent GB-735546-A (GB)
Title: Improvements in or relating to processes for producing hollow bodies of concrete
IPC: B28B7/00
Filed: 1953-06-09
Abstract: 735,546. Moulding hollow concrete articles. ANTONELLO, F. June 9, 1953 [June 10, 1952], No. 15860/53. Class 87 (2). Long hollow concrete articles, e.g. hollow beams, are cast by spreading a layer of concrete on the walls of a collapsible mould while they are spread apart to form a flat surface and then folding the mould into the shape of the desired product before the concrete has set, the concrete being heated as it sets by heating means in the walls of the mould. The base 1 and walls 2, 2<1> of the mould are of concrete 13 set in frames 12 which are hinged together. Pipes 14 are embedded in the concrete and interconnected externally to form a continuous passage for steam. The pipes are previously coated with wax which melts on rise of temperature and causes the pipes to be loose enough in the concrete to be able to expand freely. Channels 20 are formed along the inside surfaces of the mould walls, with outlets 22 through which suction is applied. Strainers 21 are fitted, and filtering material, e.g. glass fibre, is placed in the channels. The mould is opened out to the position shown in Fig. 1, with the walls 2, 1 and 21 all horizontal, 2 and 2<1> being supported on studs 8. Edge walls 10 are also pivoted to the side walls 2, 2<1> and these seat on studs 9, the height of which may be varied so that the position of the edge walls 10 can be adjusted to form a guide to the thickness of the concrete to be laid. A thin layer of starch and water emulsion is laid on the inner surface of the wall material 13, to ensure easy removal of the article, after moulding, because the starch is baked under heat and becomes powdery. The concrete is then laid and its surface levelled, and an impervious sheet 28 is applied to distribute the atmospheric pressure over the walls while suction is applied to the channels 20. The mould walls are then raised, while the concrete is still plastic, and heating is applied by circulating steam. The wall 2 is held up by a support 11 and the wall 2<1> by a cross member 24 arranged as shown in Fig. 5. Core support bars 27 are then inserted, Fig. 4, held by members 27<1>, and core members 25, 26 are placed in position on them. More concrete is added to an extent indicated by the height of the edge walls 10, which is adjustable by screws 23. Another impervious sheet 29 is laid on the surface of the concrete, a cover 36 is fitted, and the ends of the mould are closed by covers. Reinforcements 30, 31 may be arranged and any other inserts as desired. Heating and suction are maintained as the concrete sets, and the article is ready to be taken out of the mould in about two hours.
Patent GB-438580-A (GB)
Title: Improvements in or relating to alarm clocks
IPC: G04B23/03
Filed: 1935-05-31
Abstract: 438,580. Alarm clocks. JUNGHANS AKT.-GES., GEB., Schramberg, W³rtemberg, Germany. May 31, 1935, No. 15867. Convention date, Aug. 11, 1934. [Class 139] In stopping - mechanism for alarm clocks the stopping lever 6 coacts with a resilient hook 8 on an arm 9 which is frictionally mounted upon the alarm winding shaft 10 so that it is carried round with the latter to a predetermined limited extent. This limit is decided by a fixed pillar 12 and the forked end of arm 9. When lever 6 is depressed against spring 5, it locks under hook 8 and holds down a lever 7 on the hammer shaft 7<1> so that anchor 2 locks the alarm escape wheel 1. Shaft 10 is turned counterclockwise to wind up the alarm spring.
Patent GB-1185444-A (GB)
Title: A Process for Making an Article of Paper Strip.
Inventor: KAPPELER HANS
IPC: B31C1/00
Filed: 1968-04-02
Abstract: 1,185,444. Wound articles. MICAFIL A.G. 2 April, 1968 [31 May, 1967], No. 15878/68. Heading B8G. [Also in Divisions C3, D1, D2, H1 and H2] A wound article is made by impregnating a paper strip with resin so that a continuous zone within the thickness of the paper remains free of resin, winding the impregnated strip upon itself, hardening the resin (or permitting it to harden), filling the resin-free zone of the strip with a liquid resin or polymerizable monomer and hardening the liquid (or permitting it to harden). The impregnating resin and liquid resin or polymerizable monomer may be the same or different. The liquid resin or polymerizable monomer can be drawn into the wound paper strip under vacuum or forced in under pressure. In specified embodiments phenolformaldehyde resin or epoxy resin is used for impregnating the paper strip and styrene monomer is used as the liquid. The impregnating resin may be applied to the paper strip prior to or during winding. The paper strip may be wound on a transformer core.
Patent GB-1370912-A (GB)
Title: Adhesive applicator
IPC: A43D25/18
Filed: 1971-05-19
Abstract: 1370912 Coating apparatus C I C RALPHS Ltd 19 May 1972 [19 May 1971] 15879/71 Heading B2L Apparatus for applying thermoplastic adhesive comprises a reservoir 8 for the material a piston and cylinder pump 11 for ejecting a quantity of adhesive from the reservoir past a one way valve 9 to a channel 7 from which it is ejected through one or more nozzles 5 by air passing through a passageway 3. The thermoplastic adhesive is fed from a storage reel 26 by a reciprocating platform 30 controlled by a pneumatic piston (not shown). The piston has a variable stroke and is operated upon demands for adhesive. Clamping jaws 29 grip the rod to feed the adhesive and jaws 28 prevent reverse motion. The adhesive rod moves into a spiral chamber 20 and as it is melted by heaters 2 passes into a reservoir 8. A pneumatically driven piston 11 ejects a quantity of molten adhesive past a valve 9 into a passage 7. Air from a pipe 4 which may be admitted as the piston 11 moves or may be continuously admitted carries the adhesive through the nozzles 5. The piston 11 is a loose fit in its cylinder to allow gas in the adhesive to escape.
Patent GB-1175881-A (GB)
Title: Ejection mechanism for molding apparatus
IPC: B22C7/06
Filed: 1967-04-06
Abstract: 1,175,881. Moulding machines. CATERPILLAR TRACTOR CO. 6 April, 1967 [2 May, 1966], No. 15884/67. Heading B3F. Moulding apparatus for manufacturing shell moulds 15 between separable halves 10, 11 thereof comprises a stripper plate having stripper pins 31 for ejecting the shell mould 15 from the movable first half 10, and pins 33 that precisely locate the ends of the stripper pins 31 by engaging with the other half 11 when the halves 10, 11 are brought together, the said stripper pins 31 ensuring that the shell mould 15 remains in the fixed half 11 after separation. A cam release latch 35 ensures that during initial retraction movement of the first half 10 the stripper pins 31 are held stationary, a cam slot 39 and pin 38 acting to raise the latch upon further separating movement (Fig. 2, not shown). A pneumatic piston 43 actuating further stripper pins 40 is used to eject the shell mould 15 from the core box half 11. The core box halves 10, 11 are mounted on supports that include gas supplied heating manifolds 18, 25 and nozzles 20, 26. Alternatively electric heaters can be used.
Patent GB-712272-A (GB)
Title: Improvements relating to containers for cakes of soap
IPC: A47K5/03
Filed: 1952-06-25
Abstract: 712,272. Soap holders. TYSZKIEWICZ, L. June 25, 1953 [June 25, 1952], No. 15928/52. Class 131 [Also in Group XVII] A soap box having a hinged lid and containing a grid lying parallel to the floor of the box when the lid is closed and operatively connected at one end by a pair of hinged links to the lid to be raised at that end when the lid is opened is characterized in that the links incorporate means for engaging the container to limit the degree of opening of the lid and can be prevented from engaging the container so that the grid and links can be turned to a position giving access to the container for cleaning. As shown, a box 4 having a hinged lid 5 contains a soap-supporting grid 7, a crossbar 7c at one end of the grid being pivotally supported in links 8 which are slotted at 8a and engage pins 9 on lugs 5a of the lid. Hooks 8b on the links engage stops 4a on the container to limit the opening of the lid, the grid being inclined for easy removal of the soap 10. Engagement of the hooks 3b and stops 4a may be prevented by finger pressure on the grid as the lid is opened so that the grid and links can be turned on the pins 9 to allow cleaning of the box.