baber/WOPTO huggingface dataset:
Patent GB-355667-A (GB)
Title: Improvements in electromagnetic relays
IPC: H01H51/06
Filed: 1930-05-21
Abstract: 355,667. Light current relays. DUNLOP, S., 49, Chancery Lane, London.- (Fuld & Co., Telephon-und Telegraphenwerke Akt.-Ges., H. ; 136, Mainzerlandstrasse, Frankfort-on-Main, Germany.) May 21, 1930, No. 15664. [Class 38 (v).] Contact-making relays have a core consisting of two stamped-out members 2, 3 the upper of which is bent round to form a yoke 1 on the free end of which the armatures 8, 9 are pivotally mounted the lower core portion having a downturned projection 7 forming an armature polepiece. In assembly the coil 5 is first slipped on the member 2 until it comes against a shouldered portion where the core is widened to form the yoke-piece and the member 3 is then slipped into the coil below the member 2 the coil being thus held firmly between the projection 7 at one side and the shoulders in the member 2 at the other side. The two core members are secured together by a screw 4 at the point where the member 3 projects below the shouldered portion of the member 2. The combined core and yoke thus formed has a substantially uniform cross section throughout so that a uniform magnetic flux density is produced therein by the coil 5. To hold the coil against lateral displacement one of the core portions may have a slight curvature before the coil is slipped into position. The winding connecting tags 19 are mounted in one of the coil endplates 11. The free end of the yoke-piece 1 may be formed with a knife-edge for supporting the armatures 8, 9 which are held thereon by springs 14, 15. The armatures may carry non-magnetic distance-pieces to prevent sticking which may consist, as in the case of the outer armature -9 shown in Fig. 4, of a clip 10 held in recesses formed at the sides of the armature. The relatively fixed contact springs of the relay may be provided with lateral projections adapted to rest on a stepped insulating member 20 adjustably secured on the yoke-piece 1, The relays are fixed by screws to a carrier rail, the screws engaging tapped holes in the cross members joining the core and yoke portions 1, 2. Alternatively, as shown in Fig. 5, the carrier 31 rail of a number of relays may form an integral part of the members 32, 33 forming the yoke and upper core portions of the individual relays, the rail having fixing eyelets 34 at its ends. The lower core members 36 of the relays in such an arrangement would, of course, be formed separately.
Patent GB-297080-A (GB)
Title: Improvements in gas fired closed fluid type heat radiators
IPC: F24H3/00
Filed: 1928-05-29
Abstract: 297,080. Moser, A. D. Sept. 14, 1927, [Convention date]. Gas heating-stoves. -A radiator containing gas-heated fluid for rooms comprises tubular c a s t iron units 11 held assembled at top and bottom by pressed-in tubular thimbles 14, 15 of wrought steel, preferably with gaskets 16 between the faces of the units. The heating chamber is formed by stall-like integral extensions 12 of the units with end covers 18, 19. Gas passing a valve 44 mixes with air from an adjustable screwed inlet 57 and flows along a tube 58 to a burner 20. The valve 44 is supported by a spring 45 and has a tubular cone 46 adapted to close on a seating 55 of a tubular neck piece 52 screwed into a casing 50. The valve is controlled by a flexible diaphragm 43 operated on by steam pressure in the radiator through a tube 41. When the valve is open, gas passes through the annular space 53, but when steam pressure closes it, gas enters by lateral ports 48, 49 and a by-pass comprising an internal axial tube 47 through the cone 46. The burner consists of an elongated box 20 with reamed holes 65 arranged as at Fig. 5 and rests on projections 21 on the base of the heating chamber, into which air is admitted only by slots 22 at the bottom of the units. Two end units carry legs and one carries an adjustable spring-pressed ball safety valve 24 with a depending steam pipe 26. On cooling, internal pressure falls, and a float 32 with a pin 33 normally closing a valve 34 also falls, and air is admitted to the radiator by the valve 34, holes 30 in a partition dividing the valve into two chambers and by pipes 27, 28 connecting the valve with the radiator. On heating, air escapes and finally steam enters and condenses under the float 32 to lift it and close the valve. The condensed water returns by pipe 27, and the valve is held closed by internal pressure. The water level in the radiator is kept below the valves and pipe 41.
Patent GB-711860-A (GB)
Title: Improvements in or relating to wrought aluminous metal articles
IPC: C22C21/00
Filed: 1951-07-03
Abstract: Wrought articles are formed of aluminium alloys comprising Be 0.005-0.25 per cent., or Ni 0.04-1.0 per cent., or both; as impurities, Cu up to 0.05 per cent., Mg up to 0.05 per cent., maybe, and Fe and Si 0.01-0.8 per cent. are present: Fe should not exceed 4/3 Si; the articles in the cold worked condition have a recrystallization temperature lower than if devoid of Ni or Be but receive the same amount of cold work.  Other impurities which may be present are Mu Zr, Mo and Cr, not exceeding 0.01 per cent. of each; Ti and V, not exceeding 0.02 per cent. of each; Zn not exceeding 0.05 per cent.  The annealing of specific alloys, cold rolled 90 per cent., e.g. at 500 DEG F., 450 DEG F. and 400 DEG F. for 15, 15, 30 minutes respectively, is referred to; complete recrystallization is said to occur.  The articles may be cable sheaths.  Specification 711,859 is referred to.
Patent GB-981200-A (GB)
Title: Foamed epoxy resins
Inventor: TURNER JOHN MICHAEL
IPC: C08J9/14
Filed: 1962-04-25
Abstract: Cross-linked epoxy resins are produced by mixing 30-75% of a material containing at least 2 epoxy groups per molecule, 15-35% of a halide of phosphorus or silicon and 5-25% of a miscible halogenated hydrocarbon blowing agent.  The heat of reaction is sufficient to cause expansion.  Halides specified are PCl3 and SiCl4. Epoxy-compounds specified are dipentene dioxide, polyallyl glycidyl ether, 3,4 - epoxy - 6 - methylcyclohexylmethyl 3,4 - epoxy - 6 - methylcyclohexylcarboxylate, polybutadiene oxide, the oxide of styrene/butadiene copolymer and condensates of epichlorohydrin and polyols e.g. glycerol or bis-phenol A. The blowing agent may be fluorohydrocarbons which boil between 20 and 150 DEG  C.  Other additives may be:  0.1-5% surface active agents, e.g. siloxane-oxyalkylene copolymer; 5-25% basic inorganic fillers, e.g. CaCO3, MgCO3, MgO or Sb2O3 and a basic catalyst, e.g. pyridine, quinoline or diazabicyclooctane. The foams are flame retardant.  They may be used for refrigeration, sound insulation and shock absorption. In the examples the blowing agent is CCl3F.  Examples (2,3,4 and 6) involve a prepolymer prepared from a bisphenol A/epichlorohydrin condensate and (2-4)PCl3 or (6)SiCl4.  This is reacted with a surface active agent, a blowing agent and further bisphenol A/epichlorohydrin condensate (2,3) or 3,4-epoxy - 6 - methylcyclohexylmethyl 3,4-epoxy-6-methyl-cyclohexylcarboxylate (4.6), a filler (2b,4) or catalyst (6).  Specifications 923,403 and 930,635 are referred to.
Patent GB-1177367-A (GB)
Title: Light-transmitting structural unit
IPC: E04C1/42
Filed: 1967-04-06
Abstract: 1,177,367. Transparent building elements. BAUKO WOLF & CO. G.m.b.H. 6 April, 1967 [21 May, 1966], No. 15842/67. Heading E1B. A light transmitting unit comprises a number of elements 5a, each having rib or groove means 10a, 12a, in its end faces, slotted into a framework 1a of metal strips 2a interconnected by slots 3a, tabs 7a and 8a being pressed out of the strip surfaces to locate the elements. In another embodiment each element has an individual frame, the frames are welded or rivetted together to form a unit and reinforcing rods are incorporated in spaces between the frames. In another embodiment a number of elements are assembled together within an outer frame and reinforcing rods are positioned in spaces formed between the blocks. The units are sealed by a plastics sealing compound moulded between the elements or between the frames or between the framing members and the elements, a making means comprising an insulating foil layer, an intermediate foam plastics layer and a wood back up layer being used in the moulding.
Patent GB-185710-A (GB)
Title: Driving and controlling mechanism for power-operated machines
IPC: D05B69/12
Filed: 1921-06-17
Abstract: 185,710. Fairweather, W., (Singer Manufacturing Co.). June 17, 1921. Clutches, friction; gearing for stopping and starting machinery.-In order to facilitate the use of high-speed electric motors for driving sewing and other small machines the mechanism for declutching the motor from the machine is arranged to cut in resistances into the motor circuit so that the motor runs at reduced speed during the idle period of the machine. A motor C is secured by housing 11, 12 on an outwardly projecting bearing-boss 10 of the main shaft 9. The shaft 16 of the motor carries a worm 17 meshing with a gear wheel 18 secured on a clutch. disc 19 turning freely on the shaft 9. A hand-. wheel 20 fast on the shaft 9 is clutched to the disc 19 by a ring 21 carrying pins 22 which slide in holes in the wheel 20 and are engaged by a pusher 24 to force the ring into contact with a loose ring 23 of compressed cork, &c. which frictionally engages the disc 19. The pusher is actuated by the engagement therewith of an adjustable stud 36 of anti-friction material, such as oil-soaked hard wood, mounted in a lever 34, pivoted on the frame and also carrying a brake shoe 39. The lever 34 is connected by a link 42 to a lever 44 on a shaft 45 rotatable against the action of a spring by a tread rod 48. Connected to the treadle rod by a chain 57 is a rheostat arm 53 held by a spring 55, when the machine is at rest, on the uppermost of three contacts 54 so as to include in the motor circuit resistances r<11>, r<1>. When the treadle rod is depressed to start the machine the resistances are successively cut out, and immediately after the arm 53 meets the lowest contact the clutch is engaged.
Patent GB-797129-A (GB)
Title: Process for coating moulds
IPC: B22C3/00
Filed: 1956-05-23
Abstract: 797,129. Casting-processes. DAUSSAN, H. J. May 23, 1956 [May 24, 1955], No. 15913/56. Class 83 (1). Moulds are coated by disposing on the bottom thereof a mixture of fine particles of wood or other material which is capable of rapidly carbonizing, and other combustible elements of greater size than said particles and capable of rapid combustion upon contact with the melt, beginning pouring so that said rapidly-ignited elements can carbonize said particles without the latter being completely submerged by the poured metal, and then continuing the pouring so that the pouring jet disperses the carbonizedparticles over the inner-surface of the mould wall. The mixture may be wood-sawdust and wood-shavings, with, if desired, an addition of 5-10 per cent of sodium silicate, and disposed in the bottom of the mould in a combustible container 46. The mould walls are initially shielded from splashing by a combustible screen 49 of, e.g., corrugated cardboard. Specification 785,824 is referred to.
Patent GB-1396824-A (GB)
Title: Electrical transducer for a musical instrument
IPC: G10H3/14
Filed: 1973-04-03
Abstract: 1396824 Electrophonic musical instruments; drums GIBSON Inc 3 April 1973 15913/73 Heading G5J A transducer 40 for transmitting electrically sounds from a vibrating part of a musical instrument comprises coil 18 wound round permanent-magnet system 14, 16, and two ferromagnetic armatures 60, 64 to induce in the coil e.m.f.s. related to the vibration. Mounted on a drumskin, armature 64, separated from the polepieces 14, 16 by a thin felt-like layer 66, transmits predominantly high frequencies. Armature 60, held loosely in a cavity inside a sponge-like body 50, transmits predominantly low frequencies as the whole device vibrates. In a second embodiment, mounted inside a guitar body, the wooden bridge carrying the strings rests on armature 64. If the bridge is ferromagnetic it can serve directly as armature 64. If the transducer is mounted under part of the strings away from the bridge, the motion of metallic strings is stated to take the place of movement of armature 64, no longer required. The sensitivity to high and low notes can be controlled by variation of the masses of armatures 60 and 64.
Patent GB-159154-A (GB)
Title: Improvements in devices for feeding sheets to printing presses, folding machines and the like
IPC: B65H3/06
Filed: 1920-06-14
Abstract: 159,154. Spiess, G. Feb. 17, 1920, [Convention date]. Tripping arrangements.- Sheets are fed to printing, folding, and like machines by a friction roller 2 which advances the, sheets successively to a tape roller. 21 with which co-operates a rising and falling roller 22, and the invention consists in means for raising and lowering the roller 2 from the pile, which means are controlled from a feeler 3 arranged near the rollers 21, 22. The feeler 3 is pivoted to a lever 7 fitted at its upper end with cam races 9, 10, 11, the race 11 being formed with a recess 12 in which engages a roller 14 on a spring-controlled lever 13, to hold the lever 7 in its normal position shown in Fig. 1. When a sheet engages the feeler 3, it moves the upper part 4 of the feeler into contact with a rotating toothed wheel 5 which in the first place moves the feeler about its pivot until it contacts with a stop 6, and then it rotates the lever 7 in a clockwise rotation, this movement being accelerated by the spring-controlled lever 13 when the roller 14 passes over on to the race 10, the lever 13 acts to complete the movement of the lever 7 about its pivot, and this movement continues until arrested by stops 23, 24, and the feeler 4 is thus moved out of engagement with the wheel 5. The movement of the lever 7 described above causes its cam surface 9 to act on a roller 19 on a lever 15 on a shaft 16 fitted with an arm 17 which acts on a bell-crank lever 18, and raises the feed roller 2 from the sheet pile. The roller 2 remains in its raised position until the levers 7, and 15 are restored to the positions shown in Fig. 1. A cam projection 26 on the shaft 25 of the wheel 5 acts on a roller 27 on the lever 5 to restore it to normal position. The lever 15 is, however, delayed from returning to a position in which the roller 2 contacts with the pile by means of a roller 28 which falls on to a raised cam surface 29 on the shaft 25, and only when this raised surface passes from under the roller 28 does the lever 15 assume the position shown in Fig. 1. The feeler 3 is then in position to be acted on by another sheet, and allow the actions described to be repeated.
Patent GB-865188-A (GB)
Title: Improvements in or relating to cassettes for magnetic recorders and recorders for use with these
Inventor: NAMENYI-KATZ LASZLO
IPC: G11B23/087
Filed: 1957-05-21
Abstract: 865,188. Magnetic recording and reproducing apparatus. EPSYLON RESEARCH & DEVELOPMENT CO. Ltd. July 10, 1957 [March 21, 1957], No. 16138/57. Class 40 (2). In a magnetic recorder wherein the record medium 3 passes between a pair of externallydriven spools 2 in a cassette 1 to traverse a magnetic transducer, the transducer consists of a magnetizable head 4 . . . 6 embodied in the cassette and having ends adapted to be engaged with an external magnetic circuit 7. For use with a record medium 3 of a synthetic resin thread coated or impregnated with magnetizable material, the head may consist of lowfriction guides 4 (e.g. of polyfluorethylene or of a porous material impregnated therewith) each having a tapered bore serving to centre the record thread in a circular aperture in highly permeable pole-pieces 5 separated by a beryllium-copper spacer 6, the parts 4 . . . 6 being sealed into the cassette to retain a silicone lubricant filling. The magnetic circuit may consist of an electromagnet 7 with arms of sufficient resilience to press against the sides of the pole-pieces 5 when inserted in apertures la. In a modification for reproducing low frequencies (Fig. 3, not shown), the record passes through two small tubes of moderate permeability and high resistivity inserted in the pole-pieces 5 and extending into the guides 4; the pole-pieces are turned outwards at their outer ends to present butting faces to an electromagnet 7 held in place by bifurcated spring spigots. The drive to the spools 2 may include a slipping clutch to prevent the record 3 (permanently secured to the spools at its ends) from breaking; the force at maximum slip may be used to switch-off the winding means. A thread traverser may be associated with the take-up spool. The spools 2 may be arranged on a common axis.
Patent GB-1108883-A (GB)
Title: Improvements in or relating to ground effect machines
Inventor: BERTIN JEAN HENRI
IPC: B60V1/00
Filed: 1965-04-15
Abstract: 1,108,883. Air cushion vehicles. SOCIETE BERTIN & CIE. 15 April, 1965 [20 April, 1964], No. 16222/65. Heading B7F. An air cushion vehicle 1 is supported on a plurality of adjoining cushions 2 which are enclosed by flexible skirts each comprising a curved portion 3b forming one part of a continuous periphery of the total cushion area, joined to straight portions which abut adjoining straight portions of other skirts. The skirts may be secured at their upper edges to the base structure of the vehicle by bolted angle section attachments 6 or the straight portions only may be connected to the structure by channel section members. In a further embodiment tensioned rods may clamp the skirts to angle section attachments.
Patent GB-887643-A (GB)
Title: Improvements in or relating to barbed wire barriers
IPC: F41H11/10
Filed: 1960-05-09
Abstract: 887,643. Wire entanglements. KELLER & KNAPPICH G.m.b.H. May 9, 1960 [June 3, 1959], No. 16237/60. Class 20(1) A barbed wire barrier is formed from three or more extended barbed wire coils 8 laid up, each one in the others, as are the strands of a piece of string. In apparatus for laying such a barrier, the collapsed coils are housed in respective cylindrical containers 2 secured within ring mounts 3 which are rotated by a motor 5; the apparatus being mounted on a vehicle. One end of each coil is secured to a stake 7, and the ring mounts are rotated as the vehicle is driven away from the stake whereby the coils are simultaneously intertwined and extended. Additional coils 10 may be stored on the vehicle, and a crane 13 provided to carry them to the cylinders.
Patent GB-1039595-A (GB)
Title: Improvements in and relating to scent sprayers
IPC: A61M11/02
Filed: 1964-04-20
Abstract: 1,039,595. Spray-producers. G. KIASHEK. April 12, 1965 [April 20, 1964], No. 16239/64. Heading B2F. In a scent sprayer of the kind in which scent is absorbed by a pad 27 through inversion of the sprayer prior to subsequential ejection through depression of a plunger 3, the latter may be rotated such that the flow of the scent to the discharge fit orifice 24 is through a port 8 the area of opening of which is variable between nil and full. Such control is effected through forming the port 8 in a fixed part 5 of the sprayer and depending from a rotatable part 11 over which the plunger 3 slides and which is rotatable therewith, an extension 16 long enough to mask the port with a sloping surface for progressively opening the area of the port on rotation of the part 11. The part 11 also carries a depending portion 22 which closes the orifice 24 when the extension 16 closes the port 8. In a modified form of sprayer the plunger 3 is held within the body 1 by a bolt and the extension 16 is replaced by a part mounted eccentrically of the plunger axis.
Patent GB-542987-A (GB)
Title: Improvements in or relating to lubricating installations
IPC: F16N13/08
Filed: 1940-04-12
Abstract: 542,987. Reciprocating pumps for liquids. AUTO RESEARCH CORPORATION. April 12, 1940, No. 16247/41. Convention date, April 12, 1939. Divided out of 542,924. [Class 102 (i)] [Also in Group XXXIV] A centralized lubricating installation with both outside tubes and inside bores has a reservoir cover provided with a pump-forcing lubricant into a system of bores in the cover and thence to either of the distributing systems. The cover 1 carries a pump cylinder 2 with outlet 27 leading to a socket 32 leading to outside tubes when the nut 33 is unscrewed or to a socket 34 with gasket 35 leading to the inside bores. The plunger 13 is spring-pressed and extends through the cover to a handle knob 11. Specification 542,924 is referred to.
Patent GB-453618-A (GB)
Title: Improvements relating to the weft inserting devices of looms for weaving
IPC: D03D49/46
Filed: 1935-06-05
Abstract: 453,618. Weft - inserting devices. WALKER & CO. (SHIPLEY), Ltd., W., and WALKER, W., Wrose Brow Road, Windhill, Shipley, Yorkshire. June 5, 1935, No. 16303. [Class 142 (ii)] The steel or like tape T, which is wound and unwound from a drum D and carries a weft inserting device is held closely to the drum by an overlying tensioned wire W. This passes from the drum at the same tangent as the tape, next around a pulley P, and then around a pulley P<1>, which leads the wire back to the drum clear of the path of the tape. The wire may be endless or be secured to two different points on the drum. The pullies are carried by a bracket B, one of them being acted upon by a screw C to tension the wire.
Patent GB-594192-A (GB)
Title: Improvements relating to radio receivers
IPC: H01Q1/24
Filed: 1946-05-16
Abstract: 594,192. Radio-receiving apparatus. GODDEN, A. W. May 16, 1946, No. 16465/45. [Class 40(v)] A radio receiver comprises a cabinet 1 with an associated sheet aerial 3, which is connected to the input of the receiver .via an inductance 9, and means 8 for connecting a further aerial between the inductance and the input circuit, for short wave reception. The sheet aerial may consist of metal sprayed on the cabinet, or may comprise a metal sheet let into a recess in the cabinet or between adjacent plies of a plywood cabinet. The value of the inductance 9 is selected to avoid the loss in efficiency on short waves which would otherwise be produced by the sheet aerial. The sheet aerial may alternatively be used in addition to a loop aerial.
Patent GB-1058708-A (GB)
Title: Pulse generating circuit using a transistor
IPC: H03M1/00
Filed: 1964-04-21
Abstract: 1,058,708. Transistor staircase waveform generators. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORPORATION. April 21, 1964 [April 25. 1963], No. 16478/64. Heading H3T. A staircase waveform generating circuit comprises a transistor having a punch-through voltage less the avalanche breakdown voltage with a sawtooth waveform applied to the collector and a capacitor connected between base and emitter. As shown in Fig. 2, when the voltage of the sawtooth from source S becomes sufficient to cause punch-through in the transistor, capacitor Co becomes rapidly charged, cutting off the collector current. Capacitor Co then retains its charge until the rising sawtooth voltage at the collector causes a further breakdown, charging capacitor Co to a higher voltage and again cutting off the collector current. As this process continues, a staircase waveform is generated across capacitor Co and a train of short-duration pulses occurs in the collector current waveform. The number of steps in each staircase waveform is dependent on the amplitude and slope of the sawtooth voltage waveform applied to the collector. The invention may be applied to analogue/digital conversion. The transistor may be operated inversely (Fig. 5, not shown).