baber/WOPTO huggingface dataset:
Patent GB-519192-A (GB)
Title: Improvements in or relating to electric apparatus for timing the period of energisation of a given device
IPC: H03K17/28
Filed: 1938-09-16
Abstract: 519,192. Switching systems. IGRANIC ELECTRIC CO., Ltd. (Cutler-Hammer Inc.). Sept. 16, 1938, No. 27070. [Class 38 (iv)] [Also in Group XXXVII] A circuit 5a which may for example control a welding circuit 1 is energized for a predetermined 'time by the momentary depression of a push-button 2, the time being determined by the rate of discharge of a condenser 4. On depressing the button 2 a circuit is completed through a relay 7a and another circuit through contact 3a and the relay 5a. The relay 5a operates to close contacts 5b, completing the circuit to the welding transformer 6, and contacts 5c in a maintaining circuit. The relay 7a closes contact 7b, thereby completing a circuit through a rectifier 8 to the winding 3b of a relay 3, and opens contacts 7c thereby breaking the rectified current that has previously energized a winding 3c of the relay 3. The decay of current in 3c, is how ever delayed by the discharge from the condenser 4 and only after a time interval does the relay 3 operate to break the. circuit to relay 5a. which thereupon opens contacts 5b, and breaks the welding circuit. An adjustable resistance 9 enables the time of weld to be varied. In a modification, Fig. 2 (not shown), there is an additional winding in opposition to the winding 3c and energized from the circuit 5b, 6, i.e. by current proportional to the welding current. This causes the relay to operate earlier when there is a big welding current and thus serves to maintain the energy of each weld substantially constant. In a further modification, Fig. 3 (not shown), the relay 3 has, in addition to the two windings of Fig. 1, a third winding acting on the upper limb of the armature and serving to hold the armature in position after it has operated. There is also an additional two way switch. When this switch is in one position, the device operates as in.Fig. 1. When the switch is in the other position, if the push button is held depressed, a continuous series of welds is produced, the time of each weld being determined as before by the discharge of the condenser 4 and the time between welds being determined by the dying away of current in the third inductive winding due to its being short-circuited by a circuit with a variable resistance in it. This occurs immediately the relay 3 operates, the winding 3b being simultaneously de-energized and the winding 3c energized so as to tend to return the relay to its original position.
Patent GB-1420699-A (GB)
Title: Electrically driven earth-moving machine
IPC: B60L5/00
Filed: 1973-06-06
Abstract: 1420699 Earth moving machines CATERPILLAR MITSUBISHI Ltd 6 June 1973 [9 June 1972] 27081/73 Heading B7H [Also in Division El] An electrically driven earth moving machine 1, Figs. 1, 2 having a motor (not shown) as a main prime mover is connected by an electric cable 6 to an electric source car 10 equipped with a power generating unit, the electric cable being wound on a reeling device 4 provided at the rear of the machine 1 in a manner such that the cable may be wound in or paid out according to the distance required between the machine 1 and car 10; a pin (18) Fig. 3 (not shown) connects the machine and car when the latter is to be towed. As shown in Fig. 2 the end 6A of the cable 6 from the reeling device 4 is connected to a control device 19 which is wired to the main electric motor (not shown) of the machine 1 and to an electric device (not shown) which winds or unwinds the reel 4 via a torque motor 18 according to the distance required between the machine 1 and car 10. The car 10 has a generator 12 in series with an I.C. engine 11 which is started by a start button on a switch 15.
Patent GB-1512385-A (GB)
Title: Multiway valves
IPC: F16K11/04
Filed: 1975-06-27
Abstract: 1512385 Valves FESTO-MASCHINENFABRIK GOTTLIEB STOLL 27 June 1975 [28 June 1974] 27237/75 Heading F2V A pilot operated multi-way valve comprises a main valve member 9 having an end face 13 which in one extreme position seats on a surface 20 to block flow from a supply passage 2 to a work passage 4, member 9 having a through bore 15 which at one end is permanently open to supply passage 2 and at the other end can be selectively blocked by a pilot valve member 16 which simultaneously opens vent passage 17 from chamber 12 to cause diaphragm 10 to snap main valve member 9 to the said one position under differential pressure. In its other extreme position, a face 21 on main valve member 9 seats on shoulder 23 to block flow between work and exhaust passages 4, 8 respectively. The main and pilot valve members 9, 16 have polyurethane coverings 25, 40 and are respectively movably supported by flexible arms 30, 39. The latter and diaphragm 10 are also of polyurethane. Pilot valve 16 is actuated by a pin 51 moved by a control lever loaded by leaf spring 56.
Patent GB-503537-A (GB)
Title: Improvements in a method and means for casting jewelry and the like
IPC: B22C9/00
Filed: 1937-10-07
Abstract: 503,537. Moulding jewellery. JUNGERSEN, T. G. Oct. 7, 1937, No. 27302. [Class 87 (ii)] [Also in Group XXIII] An article of jewellery is made by first producing a model 15, allowance being made for casting shrinkage, partly embedding this model in or placing it on plaster of Paris or other plastic material 17 on a base 16, fashioning the free face of the plastic material to a predetermined parting line on the model and to form dowel &c. holes 19, covering this with raw rubber, Wood's metal, the substance known under the Registered Trade Mark "Bakelite," &c., preferably after applying a frame 20, removing the plastic material 17 and base 16, after vulcanizing in a press if necessary, then applying rubber &c. to the face thus exposed, preferably after applying a parting oil or powder, removing the pattern, and casting therein by centrifugal or other force a wax or fusible alloy pattern to be used in making moulds for casting platinum or other metal, preferably under centrifugal, or other pressure or vacuum. The model 15 may be smoothed by dipping in a solution of wax and this may be removed by heat before applying the raw rubber. In a modification a base 16<1>, Figs. 13 and 14, is used having recesses 21, 3, 1, and 2 for the sprue former 18, core 4, and plastic material 17. This core and base also have dowel &c. holes 19. The rubber mould 7 if deeply undercut, has slits 9, Fig. 15, cut in it and may have recesses 8<1> formed by a heated tool 8. Lubricant, such as talc or castor oil, may be applied to the inner surface of the rubber &c. mould. The wax, or waxed alloy, pattern is placed on a sprue holder 26, Fig. 12, and if the article required is to be of platinum is treated with a solution of sodium silicate and then dipped into a mixture of silica and sodium silicate, with or without glycerine or caustic soda or other material to retard or accelerate drying and preferably freed from air &c. by vibrating in vacuo. After drying at a moderate heat the coated pattern 28 is enclosed in a flask 27 which is filled with investment material. The mould is then dried at a temperature which will cause the wax &c. to be forced out, absorbed or burned. If gold, silver, or metals of lower melting point are to be cast the wax &c. pattern is treated with alcohol &c. to remove oil and then coated with a wet mixture of silica and plaster of Paris preferably being treated by a vacuum or vibration or both before or during coating or both. Vacuum may also be applied when the flask is being filled by packing or pouring in the same or a different investment material. The investment may be removed from a platinum casting by dissolving in an acid such as hydrofluoric. Specification 449,062 is referred to.
Patent GB-618501-A (GB)
Title: Furnace electrode regulator
IPC: H05B7/156
Filed: 1945-10-18
Abstract: 618,501. Fluid-pressure servomotor-control systems. MOORE, W. E. Oct. 18, 1945, No. 27357. [Class 135] The position of the electrode 12 of an electric arc furnace is adjusted by a hydraulic servomotor 15, 16 under the control of a valve 23, the latter being actuated by a spring-loaded piston 32 to which gas under pressure is supplied, this gas pressure being controlled by electromagnetic means responsive to the current flowing to the electrode. Variations of pressure in the gas supplied to piston 32 are obtained by means of a bleed 38 obturated by a valve 39, the latter being carried by a lever 40 moved in opposite directions by solenoids 42, 43 fitted with dash pots and subject, respectively, to the current and voltage variations of the electrode circuit. Fluid is supplied to bleed 38 and piston 32 through a regulator valve 37, and the fluid supplied to valve 23 passes through a regulator valve. 28. The two ends of servo-cylinder 16 are connected to a check valve 46 which opens to interconnect the two ends of the cylinder and so arrest the piston should there be an excessive rise of pressure at the upper end tending to force the electrode on to the charge.
Patent GB-290503-A (GB)
Title: Reversible bottle holder
IPC: B67D3/00
Filed: 1927-10-17
Abstract: 290,503. Scholz, F. W. Oct. 17, 1927. Dispensing liquids; bottle and like stands for bars. - A reversible bottle holder for use with a bottle 14 combined with a measuring device 26, comprises a vertical standard 10, a bottle holding rod 11 pivoted at 12 to the standard, and stops 15, 16 which limit the movement of the bottle to 180‹. The clips 13 may be slidably arranged on the rod 11.
Patent GB-407747-A (GB)
Title: Improvements in and relating to means of securing sheets to drawing boards and the like
IPC: B43L5/02
Filed: 1932-10-05
Abstract: 407,747. Clips. SHAW, A. J., 6, Ramuz Drive, Westcliff-on-Sea. Oct. 5, 1982, No. 27676. [Class 44.] Means for securing sheets of paper, canvas, &c. to drawing-boards, notice boards, &c., comprise angle-plates b, Fig. 1, having inclined slots c, which are secured to the edge of the board a by screws &c., passing through the slots. When the plates are moved so as to cause the screws to ascend in the slots, the parts projecting over the board move down, so as to clamp the paper &c. The slots are preferably inclined in opposite directions, so that the paper is slightly stretched when the plates descend. The undersides of the plates may be roughened to increase their grip, and apertures may be provided to give finger-holds. The plates may be mounted in slots in the board, or in recesses in its edge. In a modification, the clamping-devices comprise plates i, Fig. 7, having cam-slots j, through which pass screws k. An arm l on each plate projects over the surface of the board, so that, when the plate is turned, the arm is brought down on the board. Thumbpieces m may be provided on the plates.
Patent GB-944394-A (GB)
Title: Developer for electrophotographic purposes
IPC: G03G9/08
Filed: 1960-08-10
Abstract: 944,394. Electrophotographic developers. KALLE A. G. Aug. 10, 1960 [Aug. 17,1959], No. 27695/60. Heading G2H. An electrophotographic developer comprises a mixture of a finely divided carrier and two distinguishable toners, one of which has a positive charge and the other of which has a negative charge relative to the carrier. The carrier may be of glass quartz, metal, potassium or copper sulphate, potassium or sodium chloride, polystyrene, carboxymethyl cellulose, or glass balls covered with an organic resin or crystals of oxalic acid, adipic acid or phthalic anhydride, the carrier particles being between 100 and 600 Á. For carriers of glass or iron, the positive toner may be one or more of the following: colophony, copal resins, dammar resin, asphalt, colophonymodified phenol resins, ketone resins, maleic resins, coumarone resins, polyacrylic acid resins, and polystyrenes; and may contain inorganic or organic pigments or dyestuffs. The positive toner may include animal, vegetable, or synthetic waxes and/or a low-melting point organic compound such as α- or #-naphthol, acenaphthene, acetanilide, #-dibromobenzene, 2:4-diaminotoluene o-phenylenediamine, resorcinol, or diphenylamine or derivatives thereof. In Example 5 a photoconductive oxadiazole is also included in the positive toner. The negative toner may be a metal resinate, a vinyl chloride copolymer containing carboxyl groups as in Specification 944, 393, or a combination of these with at least half as the resinate, and the negative toners may also include wax and low melting organic compounds and dyestuffs and pigments as described for the positive toners. The toner particle zones should be within the range 1 to 100 Á, and should comprise by weight 0.1 to 10% of the weight of the carrier. The ratio between the toners may be between 1 : 1 and 10 : 1. Mixtures of toners of the same charge may be used and in an example the positive toner is red and the negative toner is a mixture of green and blue particles.
Patent GB-708062-A (GB)
Title: Improvements in or relating to the production of concrete members
Inventor: CLARKE NOEL WILLIAM BAILEY
IPC: B28B23/02
Filed: 1950-11-13
Abstract: 708,062. Moulding concrete. NATIONAL RESEARCH DEVELOPMENT CORPORATION Jan. 22, 1952 [Nov. 13, 1950], No. 27704/50. Class 87 (2) Pre-stressed, reinforced or plain concrete members are made by inserting one or more deformable members into a mould so as to lie transversely of the length thereof to divide the mould into adjacent longitudinal casting sections and/or to provide an end stop, subjecting said members to stress 'to cause them to be pressed against the side of the mould and thus lengthened, pouring concrete into the mould sections, and, when the concrete has set, removing the stress, whereby the reduction in length of the members facilitates removal thereof. Figs. 1, 2 and 5 show such a deformable member used as a partition, the member comprising three parts A, B, C made of rubber, gelatine or thermoplastic or other resin having rubber-like deformation under load. The parts are grooved at c, d, so that reinforcing wires h, i may pass through the member. The parts are assembled around the (pre-stressed) wires in a mould, Fig. 2, comprising sides e, f, base g, fixed stop k and wedge j. The side f is capable of movement towards and from side e, and is moved towards e by means of screw clamp m and wedge j, the wedge acting on a part l of side f. When the side fis thus moved, the member is deformed, being reduced from thickness W to thickness X and correspondingly lengthened. The concrete is cast, the side f is removed, the parts of the member are peeled away (Fig. 5) and the wires are severed in the gap thus made. In modifications :-(1) The part C may be made of wood. (2) The member may be in one piece. (3) (Fig. 7.) Each part A and B may be in two parts A<1>, A<2> between which a metal reinforcing plate a is disposed, Dowels r, t facilitate assembly. (4) (Fig. 8.) The member is an inflatable envelope 1 having a valve 2, bracing means 7 and a slot to accommodate the concrete reinforcing wires 3. (5) (Fig. 11.) An inflatable tube 9 conforms generally to the configuration of the interior of the mould.
Patent GB-757675-A (GB)
Title: Improvements in ambulances
Inventor: LOMAS AUBREY
IPC: A61G3/00
Filed: 1954-09-25
Abstract: 757,675. Folding seats. LOMAS, Ltd., H. Sept. 23, 1955 [Sept. 25, 1954], No. 27748/54. Class 52(2). [Also in Group XXXII] A folding seat for an ambulance has a seat back a3 pivotally mounted on the seat frame a<SP>2</SP> which is supported from floor plates a<SP>1</SP> by links, a, the strut a<SP>6</SP> maintaining the seat erect. Specification 711,981 is referred to
Patent GB-1460183-A (GB)
Title: Metallized film capacitor
IPC: H01G4/20
Filed: 1974-06-21
Abstract: 1460183 Capacitors MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 21 June 1974 27760/74 Heading H1M A capacitor is wound from unmetallized polypropylene film 2 and polyethylene terephthalate film 1 metallized on both sides, e.g. by vapour deposition. Polypropylene has the better dielectric properties, whereas polyethylene terephthalate is less affected by heat during the metal deposition and application of metal contact layers to the roll end faces. Preferably the width of the polypropylene film is slightly less than that of the polyethylene terephthalate film and its thickness 70 to 90% thereof.
Patent GB-299185-A (GB)
Title: Improvements in rope haulage clips
IPC: B61B12/12
Filed: 1927-10-21
Abstract: 299,185. Jones, W. T. S., Oct. 21, 1927. Rope grips.-In haulage clips for rope haulage railways of the kind in which the jaws are closed by a rising and falling slide disposed between their upper ends which is actuated by a lever, the slide G is so disposed that it is moved towards the pivot H' of the operating lever H as it is raised to close the jaws. The lever H is formed with a hook-shaped end H<2> to engage in the opening G<1> in the slide. The jaws may be provided with detachable liners D. The rope is centred in the jaws by stops E. The body of the clip is connected to the vehicle by a draw bar or hook K which is pivoted to one of the side cheeks at K<1> and formed with an extension L in which is a slot L' engaged by a pin L<2> disposed in the side cheeks.
Patent GB-1121373-A (GB)
Title: Data receiving terminal
IPC: H04L25/02
Filed: 1966-06-23
Abstract: 1,121,373. Automatic frequency control systems. INTERNATIONAL BUSINESS MACHINES CORP. 23 June, 1966 [6 July, 1965], No. 28033/66. Heading H3A. At a data receiving terminal including a clock pulse generator, the number of clock pulses occuring during a received datum bit is counted and if the count is too high or too low a pulse is deleted from or added to a counter fed from the generator. In Fig. 2a an oscillator 10 provides pulses alternately through gate 12 (A pulses) and through gate 13 (B pulses), the former being fed to a decimal counter 17, the output of which feeds a trigger circuit 18 and gate 22 to produce C pulses. When the system is switched to " receive " the counter 17 is set to zero, and on the occurrence of a mark/space transition on an input line (38, Fig. 2b, not shown) a decimal counter 50 starts counting B pulses until the occurrence of the next C pulse; the count is resumed on the next space/mark transition, and finally terminated on the next C pulse. If counter 50 has then counted more than 20, latch circuits 53 and 54 will then both be ON thereby providing an output from gate 57 which supplies an extra pulse to the counter 17. If the count is less than 20, latch 53 will be ON and latch 54 OFF, thereby providing an output through gate 64 to block gate 15 and prevent one A pulse from passing to the counter 17.
Patent GB-833090-A (GB)
Title: Improvements in or relating to closures for containers
Inventor: GAMBLE WILLIAM ROBERT
IPC: B65D41/04
Filed: 1957-09-05
Abstract: 833,090. Container closures and apparatus for applying them. METAL CLOSURES Ltd. Sept. 5, 1958 [Sept. 5, 1957], No. 28106/57. Classes 125(2) and 125(3). In a method of assembling and applying a two part screw cap to a bottle an inner part 1 with sealing disc 2, knurled part 5 and open bead 6 is placed upon the bottle neck and its skirt 4 deformed into close engagement with screw threads 10 on said neck by means of rollers 12, vertical pressure being applied by a block 11 to press disc into sealing engagement with the mouth. An outer part with a skirt 7 and flared lower edge 8 is placed over the part 1, vertical pressure is applied by block 11 or another block and the bead 6 rolled into close engagement with edge 8 by a roller to lock the parts together. In a modification, Fig. 10, part 1 has a closed bead 14 and an outwardly directed recessed portion 15 on the outerpart is rolled into close engagement with it by a roller 16. In a modified form of bottle neck, Fig. 8, an annular ring 17 between bead 18 and the screw threads supports bead 6 or 14 against distortion during the operation of forming the screw threads on part 1.
Patent GB-603605-A (GB)
Title: Improvements in or relating to fishing reels
IPC: A01K89/01
Filed: 1945-10-25
Abstract: 603,605. Fishing-reels. STEAD, C. Oct. 25, 1945, No. 28212. [Class 48] [Also in Group XXIV] In a stationary spool type reel means for reciprocating a spool 24 are driven at a slower speed than a flyer shell 8 by epicyclic gearing 13, 16 and comprise a non- rotating, axially-sliding cup member 19 frictionally connected to the spool, a rotating, non-axially-sliding cylindrical member 12 capable of passing within the cup, axially disposed guide means 18 on the cup slidably engaging a spindle 7 for the cylinder, and a radial-projection 21 on one member engaging an inclined circumferential groove 23 on the other member. The frictional engagement between the spool and cup is regulated by a nut 30. The end of the fixed spindle 7 carries a spider 17 engaging slots 20 in the cup. When reeling-in a line guide 9 is moved to the operative position by engaging a projection 11 on the cylinder.
Patent GB-599482-A (GB)
Title: Improvements in or relating to ammunition-feed mechanisms for automatic firearms of the belt-fed type
IPC: F41A9/31
Filed: 1945-10-25
Abstract: 599,482. Cartridge feed mechanism. BRISTOL AEROPLANE CO., Ltd., and FONSECA, E. C. M. D'ASSIS-. Oct. 25, 1945, No. 28230. [Class 92 (ii)] An ammunition feed mechanism in which rounds stripped from a belt are fed through a shoot 9 towards the firearm 10 by a feed roller 8, is provided with means engageable by a round in the shoot for stopping the feed roller when a predetermined number of rounds have collected between it and the firearm. In the construetion shown, a sprocket 11 rotates with and in the same direction as the roller 8, and beneath the sprocket is pivoted at 13 a lever 12. One end of this lever co-operates with a fixed stop 14 and the other end carries a pivoted rocking lever 15 having two lobes 17, 18 which engage with the separated rounds ; a spring urged lever 15 in the direction of arrow Y. In the position shown, lobes 17, 18 are in engagement with rounds C, B respectively, and the load applied by round C to lobe 17 is transmitted to lever 12 which, however, is prevented from rotating by the sprocket 11. By this means round C is locked against movement. When. however, the lowermost round A in the feed shoot 9 is removed by the breech-bolt 19, round B moves downwards and the lever 12 swings until stopped by the stop 14. Roller 8, and also sprocket 11 now rotate, and round C moves to the position previously occupied by round B, round C in such movement serving to swing lever 12 in a clockwise direction and to move the locking lever against the action of its spring until the two levers are again in the position shown. In a modification, the rocking lever is mounted on a fixed pivot on the feedmechanism casing. Specification 598,658 is referred to.
Patent GB-248060-A (GB)
Title: Improvements in or relating to loud speaking telephonic receivers
IPC: H04R1/34
Filed: 1924-11-25
Abstract: 248,060. Graham, E. A. Nov. 25, 1924. Loud-speakers. - A telephonic loud-speaker comprises in combination an electromagnetic sound-emitting system 6, a developing sound conduit 7 and a globular acoustic amplifier or radiator 2 within which the, sound conduit 7 extends, the sound conduit 7 being confined either entirely by the acoustic amplifier 2 or partly by the latter and partly by a support 4 of the amplifier 2. Perforations 2 may be formed in the amplifier 2. The outlet 8 of the conduit 7 may be rounded as shown at 10, and a conoidal sound deflector 9 may be provided. The amplifier 2 may be of translucent material and a lamp may be placed within it.
Patent GB-925827-A (GB)
Title: Apparatus for admixing cold gases with the pre-catalysed gas between the contacts in a hurdle type contact reactor for the catalytic conversion of so to so
IPC: C01B17/80
Filed: 1961-08-03
Abstract: <PICT:0925827/III/1> A hurdle contact reactor for converting So2 to So3 includes apparatus for admixing cold gases with hot So3-containing gases between the contact hurdles of the reactor comprising a central pipe 14 for admitting the cold gas with lateral outlet openings 16 above a likewise centrally located mushroom-headed distributer baffle 15 and an annular arch 17 surrounding the central pipe to create an unobstructed annular space 19 between the arch and the pipe.