baber/WOPTO huggingface dataset:
Patent GB-142624-A (GB)
Title: Improvements in body harness for supporting passengers from parachutes, or in marinelife-saving apparatus or the like
IPC: B64D17/22
Filed: 1919-04-02
Abstract: 142,624. Blackburn, H. April 2, 1919. Straps and bands.-In a body-harness for use with parachutes, marine life-saving apparatus, &c., a strap A, Fig. 3, passing round the thighs and waist, is prevented from closing beyond a fixed point when the emergency pull takes place. The strap, reinforced with wires and in parts of its length circular in section, has its two ends A<6> adjustably fastened to the back of the waist portion. The end of the strap A<6> carries a stud A<7> capable of engaging holes in a plate A<9>, Fig. 6, on the waist-belt and provided with a toe-piece A<10> which retains the stud when the pull takes place. An adjustable strap D connects the two parts of each thigh loop and prevents eyes B<3> on the suspending strap B from drawing the loops too close together. The suspending-strap passes through an eye C on a shoulder strap attached at one end to the waistbelt, the eye C being kept in place by an adjusted strap C<3>. In a modification of the apparatus for female attire, the two thigh loops are combined into one loop.
Patent GB-146082-A (GB)
Title: Improvements in or relating to automatic telephone systems
IPC: H04Q1/32
Filed: 1920-03-20
Abstract: 146,082. Automatic Telephone Manufacturing Co., (Assignees of Madsen, F. T.) June 30, 1919, [Convention date]. Automatic exchange systems.-A line relay, the two windings of which are normally bridged in balanced fashion from ground and battery respectively to the two sides of the line, has its circuits changed during the transmission of impulses so that both its windings are connected in series from ground to one side of the line while the other side of the line is connected to battery. This is of special utility on rural lines of low insulation, where a relay having a winding connected between battery and line might fail to de-energize promptly in response to the numerical line-interruptions, owing to leakage currents from line to ground. The invention is shown in its application to a selector-repeater B individual to a line A. Outgoing calls. When the subscriber A closes his line circuit, the line relay 2 responds and energizes relay 19. The line impulses are repeated over contacts 16, 29, 23 to the vertical magnet 21 and relay 22, and also to relay 27, which responds to the first impulse and remains energized as long as the impulses continue, and which changes the connexions of the line relay, as described in the preceding paragraph. At the termination of the impulses, the rotary magnet 40 and its controlling relay 30 interact in known manner to rotate the selector to an idle set of terminals in the selected level, and a relay 43 is then energized. Subsequent sets of impulses are repeated to the out-going trunk 46, 47 at contact 15, and during their transmission relay 27 is energized over contacts 16, 48. Incoming calls; supply of ringing current. In the case of an incoming call to the line A, relay 26 is energized over conductor 52 and connects the incoming trunk 50, 51 to the right-hand side of the repeater C. Ringing current in the trunk 50, 51 energizes an alternating-current relay 54 which energizes relay 55 to extend the ringing- circuit direct to line A. Conversation takes place through the repeater C.
Patent GB-742237-A (GB)
Title: Improvements in barrier layer cells
Inventor: BILLIG ERNST
IPC: H01L21/00
Filed: 1951-10-24
Abstract: 742,237. Semiconductor devices. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd. Oct. 23, 1952 [Oct. 24, 1951], No. 8343/55. Divided out of 742,172. Class 37. A sharply defined PN junction is provided by fusing a piece of N-type semiconductor to a piece of P-type by passing a current pulse between them, preferably in an inert atmosphere. The material may be germanium and/or silicon, and consist preferably of single crystals. Two or more junctions may be produced for use in transistor or photo-transistor devices. The Provisional Specification also refers to other methods of forming PN junctions as described in Specification 742,172.
Patent GB-430487-A (GB)
Title: Collapsible hood for power vehicles
IPC: B60J7/12
Filed: 1935-03-19
Abstract: 430,487. Vehicle hoods. KELLNER, A., 14, Lerberstrasse, Berne, Switzerland. March 19, 1935, No. 8593. [Class 108 (i)] In a collapsable hood for vehicles the side cant rails are each in two parts, hinged together and when extended rest on a support between the front door and adjoining window, the door and window edges being preferably packed with rubber. The cant rails 4, 5 pivoted at 6 to the main hoop 2, 3 are adapted to be supported on the frame of the fixed window and on the hinge door pillar 8 the hinge 7 of the cant rails 4, 5 preferably being situated over the pillar 8, the arrangement being that on collapsing the hood there is no frame member extending from the fixed window 9 to the wind screen pillar 11 to impede the door way. The cant rails 4, 5 are provided with a rubber packing 12 which is grooved to embrace the frame of the window 9 but merely abuts on the door 10. A recess 14 is provided on the pillar 2 to permit movement of the cant rails.
Patent GB-1022562-A (GB)
Title: Copolymers
Inventor: WILSON WALTER
IPC: C08G2/00
Filed: 1961-03-09
Abstract: Liquid formaldehyde is reacted under anhydrous conditions at - 100 DEG  to - 20 DEG  C. in the presence of an electrophilic catalyst with at least one vinyl compound.  Specified vinyl compounds are phenyl vinyl ether, 2-vinyl-1.3-dioxan, 2,3-dihydrofuran, 2-vinyl pyridine, butadiene, isoprene, pentadiene-1.3, heptene-1, octene-1, cyclohexene, cyclopentadiene, 4-vinyl-cyclohexene, beta-pinene, styrene and styrene derivatives.  A third comonomer may be present. The catalyst may be a Friedel-Crafts, their complexes, non-oxidizing inorganic acids and complexes, complexes of boron trifluoride, halogens and interhalogen compounds and oxonium salts.  The reaction may take place in the present (preferred) or absence of an inert liquid medium continuously or not, with the continuous or intermittent addition of reactants under an inert atmosphere. Specification 911,960 is disclaimed.
Patent GB-984491-A (GB)
Title: Improvements in or relating to cans
IPC: B21D51/32
Filed: 1963-03-05
Abstract: 984,491. Seaming. CONTINENTAL CAN CO. Inc. March 5, 1963 [June 6, 1962], No. 8788/63. Heading B3J. [Also in Division B8]. A metal closure is secured to a can side wall 13 by means of a chuck roll 27 movable into contact with the closure as shown; a seaming roll 30 interlocked at 31 is then moved inwards to press the closure skirt under a shoulder formed in the can wall. Specification 984,492 is referred to.
Patent GB-800698-A (GB)
Title: Methods for producing concentrated superphosphates
IPC: C05B1/04
Filed: 1956-03-21
Abstract: Concentrated phosphate fertilizers are produced by treating phosphate rock with phosphoric acid in the presence of a small amount of a non-ionic surface-acting agent, which is compartible with phosphoric acid and substantially non-volatile, e.g. up to 0.1 per cent of a condensation product of ethylene oxide and a higher alcohol.  Other compounds specified are condensation products of ethylene oxide with alkyl phenols, or alkyl phenoxy ethylene ethanol, and ethylene oxide/mercaptan condensation products.  The mixture is preferably agitated in an elongated pug mill at 180 DEG  F. which converts the original liquid slurry into a crumbly solid which is then pile cured for 1 to 5 weeks.
Patent GB-782293-A (GB)
Title: Improvements relating to telephone systems
Inventor: DRAKE BERNARD
IPC: H04Q1/446
Filed: 1955-03-25
Abstract: 782,293. Voice-frequency signal receivers. SIEMENS BROS. & CO., Ltd. Feb. 24, 1956 [March 25, 1955], No. 8818/55. Class 40 (4). In a voice-frequency receiver of the type including a voice-frequency amplifying valve VI, a guard circuit T3, X1, and, for each signalling frequency, a tuned signal circuit T2, X and a D.C. amplifying valve V2 having a signal receiving relay S connected in its anode circuit, the input circuits of the guard and signal circuits being connected in series in the anode circuit of the voice-frequency amplifying valve VI, the valve V1 is provided with voltage negative feedback at a signalling frequency, the feedback voltage (provided, in the embodiment shown, by tertiary winding L1) being derived from, less than, and at a fixed ratio to the voltage across the input terminals of the corresponding signal circuit. In an alternative embodiment, the input of the guard circuit is nearer than the input of the signal circuit to the anode of the voice-frequency amplifying valve, and the feedback voltage is provided by a potential-dividing circuit connected between the cathode of the voice-frequency amplifying valve and the junction between the input circuits of the signal and guard circuits. The receiver is coupled to the speech path at D and D 1 by means of a constantresistance arrangement as in Specification 765,112.
Patent GB-459468-A (GB)
Title: Rubber lined pumps
IPC: F04D29/42
Filed: 1936-03-24
Abstract: 459,468. Centrifugal pumps. GRIERSON, G. A. H., 37, Strathearn Boulevard, Toronto, Canada. March 24, 1936, No. 8827. Convention date, April 10, 1935. [Class 110 (i)] A centrifugal pump for fluids containing abrasives or acids comprises a casing defining a substantially cylindrical chamber with inlet and outlet openings and a hollow inflexible but resilient liner member externally formed to fit the casing and inlet and outlet openings and internally formed to provide a runner chamber and volute within the material thereof. The casing is formed in two halves 1, 2 with flat end walls and meeting surfaces and the two halves are secured together by bolts 4. The liner also is formed in two halves 15, 16 of moulded rubber secured to flat stiffening-plates 18 which are fixed to the casing by studs 24. The rubber projects slightly at the meeting surface and at the exit flange 5 so as to form tight joints when clamped up. The part 15 has a tapered edge fitting over the tapered end of the seal bushing 11 for the runner shaft to form a fluid-tight seal. The runner shown is of the open type and covered with rubber, but a closed type runner may be used.
Patent GB-670436-A (GB)
Title: Improvements in and relating to the bonding of yarns to rubber
IPC: C08J5/06
Filed: 1949-03-30
Abstract: Yarns of cellulose with side chains containing unsaturated carbon-carbon groups which may be bonded to natural or synthetic rubber (see Group V) are obtained by treating cellulose or regenerated cellulose with an agent which will introduce an unsaturated group such as allyl chloride, allyl bromide, crotyl chloride, methallyl chloride, butadiene monoxide, allyloxymethyl pyridinium chloride, or crotyloxy methyl pyridinium chloride.  In examples, alkali cellulose is treated with allyl chloride and then with carbon disulphide; and regenerated cellulose is treated with allyloxymethyl pyridinium chloride and sodium acetate. Specifications 342,689, 391,171, 467,500, 598,147, 618,705, 632,109, [Group IV (c)], and 667,778, [Group V], are referred to.
Patent GB-240737-A (GB)
Title: Improvements in or relating to apparatus for cutting grass in connection with paper making
IPC: D21B1/06
Filed: 1925-04-03
Abstract: 240,737. Milne, S. April 3, 1925. Addition to 209,608. Preliminary treatment of materials.- The cutters c of the apparatus described in the parent Specification are provided with clearers g entering the spaces between the knives to remove any grass remaining therein. The clearers are driven at a speed of about 5 to 1 from the cutter shaft a. The shaft b is not positively driven.
Patent GB-610739-A (GB)
Title: An easy chair combined with another article or articles of furniture
IPC: A47C7/70
Filed: 1946-03-22
Abstract: 610,739. Furniture combinations. GRAVES, E. C. March 22, 1946, No. 8905. [Class 52(iii)] An easy chair is provided with a cavity to accommodate a folded table which comprises a centre section, two dropleaves pivoted thereto, pivoted legs and a panel hinged to the table top and adapted to close the chair cavity when the folded table is housed therein. The cavity 2 is preferably provided in one of arms 1 of the chair and the folding table comprises a centre section 5, pivoted leaves 4, folding legs 6 pivoted to the leaves 4 and held in operative position by stays 7, and a panel 3 pivoted to the centre section 5. The leaves 4 are held in operative position by a swivelling cross bar 8. To house the table in the cavity the table is inverted the legs 6 folded on to the leaves 4 which are then folded upwardly and finally the panel 3 is also hinged upwardly and the table then placed in the cavity. The chair may also be provided with drawers 10, 11, 12 housed in appropriate cavities.
Patent GB-928965-A (GB)
Title: Improvements in or relating to transistor oscillators
Inventor: MOORE DEREK WILBUR
IPC: H02M7/538
Filed: 1961-03-10
Abstract: 928,965. Transistor oscillating circuits. DE HAVILLAND AIRCRAFT CO. Ltd. March 12, 1962 [March 10, 1961], No. 8920/61. Class 40 (6). A transistor oscillator as shown in the Figure comprises two transistors 1, 2 cross-coupled through two feed-back connections each including the series connection of a resistor 10 or 12 and a capacitor 11 or 13, the base electrodes of the transistors being connected to each other through the centre-tapped secondary winding 5 of a transformer 6 the primary winding 7 of which is included in a resonant energy store, and the collector electrodes being connected to each other through a centre-tapped primary winding 9 of an output transformer. When a D.C. source is connected between the centre tap 14 of winding 9 and the two emitters the transistors operate as a free-running multivibrator. Each time one of the transistors switches on or off a pulse is supplied through winding 5 to the resonant store comprising capacitor 8 and winding 7 causing the store to ring so that when the output of the store appearing in winding 5 approaches zero the switching off of one or other of the transistors is initiated. Thus the pulse repetition of the output pulses produced in the winding 9 is controlled by the tuned frequency of the resonant energy store.
Patent GB-1292865-A (GB)
Title: Diesters and polyesters of lactam-n-carboxylic acids with diols or polyols
IPC: C08G69/20
Filed: 1970-02-25
Abstract: 1292865 Anionic polymerization of lactams BADISCHE ANILIN- & SODA-FABRIK AG 25 Feb 1970 [26 Feb 1969] 8974/70 Heading C3R [Also in Division C2] Activators for accelerating the anionic polymerization of lactams using alkaline catalysts at 80-200‹ C. and optionally in the presence of an inert solvent, comprise di-, tri- or tetra-esters of lactam-N-carboxylic acids of the formula in which R is a C 2-12  linear or branched aliphatic hydrocarbon radical in which the carbon chain may be interrupted by ether or cycloalkylene groups, a C 4-12  cycloalkylene radical or a C 6-12  aryl radical, X and Y are each hydrogen or the radical and m is 2-12, used preferably in amounts of 0À01-15% by wt. lactam monomer. Specified lactams are capro-, capryl-, enantho-, capric-, lauro-, 3-methylcapro- and 4-isopropylcaprolactams and methylene-bis-caprolactam. Catalysts include alkali and alkaline earth metals or their amides, hydrides or lactam compounds. Examples describe the melt polymerization of caprolactam with sodium caprolactam as catalyst and capro- or capryl-lactam-N-carboxylates as activators.
Patent GB-773002-A (GB)
Title: Improvements in or relating to piston rings
Inventor: HUNT TOM OWEN
IPC: F16J9/20
Filed: 1955-03-28
Abstract: 773,002. Making piston-rings. SPECIALLOID, Ltd. Dec. 23, 1955 [March 28, 1955], No. 8996/55. Class 83 (2). [Also in Group XXVI] In a grooved and slotted type oil-control ring the end walls of successive slots 3, 4 are inclined to one another alternately radially inwards and radially outwards. The slots 3 are formed by a milling-wheel pressed into the base of the groove 2 and the slots 4 by a smaller milling- wheel pressed into the inner periphery of the ring.
Patent GB-368090-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J19/50
Filed: 1931-03-24
Abstract: 368,090. Discharge apparatus. M-O. VALVE CO., Ltd., Marconi House, Strand, London, EDEN, C. G. and SMITHELLS, C. J., of General Electric Co., Wembley, Middlsex. March 24, 1931, No. 9032. [Class 39 (i).] The electrode support wires 3, Fig. 1, are sealed into and spaced around a glass bead 4 in the shape of a ring or disc. The anode 1 is of copper and forms part of the envelope. Fig. 2 shows a pair of dies 10, 14, for shaping the ring 4. The wires 3 are passed through holes 16 in the dies. A short glass tube 17 fits closely around the die 10 but leaves a space 12 between it and the flange 8. The glass is then softened by heating and the dies pressed together, any superfluous glass being removed by the sharp edge 7.
Patent GB-435474-A (GB)
Title: Improvements in the reproduction of sound films
IPC: G03C5/14
Filed: 1934-03-23
Abstract: 435,474. Optical sound -reproducing apparatus. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort - on - Main, Germany. March 23, 1934, No. 9172. Convention date, March 23, 1933. [Class 40 (ii)] A sound-film of the lenticular type is wetted with a non-inflammable liquid, (having substantially the same refractive index as that of the film), whilst or before it is passed through the reproducing-apparatus, noise due to friction caused by the embossed face of the film being thereby prevented or minimized. A volatile liquid, such as carbon tetrachloride, is preferably used ; or an oil which may be removed from the film by a solvent may be used. The liquid may be applied by a pad, roller, or nozzle.
Patent GB-212760-A (GB)
Title: Improvements in and relating to vehicle springs
IPC: B60G11/14
Filed: 1923-04-03
Abstract: 212,760. Edwardson, E. April 3, 1923. Buffers and spring shackles.-Relates to spring devices of the kind comprising a toggle-lever frame interposed between the axle and body of a vehicle and having one or more adjustable compression springs carried by a sliding rod device located between the outer ends of the frame. Each compression spring surrounds a pair of oppositely arranged U-shaped members slidable one within the other and connected at their bight portions with rods adjustably connected to the outer ends of the levers, the free ends of the U-shaped members being adapted to engage opposite ends of the spring. As shown, the frame comprises four members 2 each consisting of a pair of spaced parallel bars, the upper members being pivoted at 4 to a plate 3 on the vehicle body and the lower members to a plate 5 on the axle. The outer ends of the members are pivoted to plates 6 connected to rods 9 which are adjustably coupled to forked members 11 connected to the U-shaped members 12 the ends of which are hooked to engage the springs 14<1>.
Patent GB-1168865-A (GB)
Title: Improvements in or relating to the Production of Pile Fabrics
Inventor: KOHLER WERNER
IPC: D04B23/08
Filed: 1967-02-27
Abstract: 1,168,865. Knitting. TEXTILMASCHINENBAU APOLDA VEB. 27 Feb., 1967, No. 9220/67. Headings D1C and D1K. In a method of producing a pile fabric, a pre-formed layer is fed onto the needles of a knitting machine so that the amount of material between courses is greater than the distance between courses. In one embodiment for producing cut pile fabric, the layer, comprising pile forming threads I interconnected by wefts 2, is fed to alternate needle bars 3, 4 by feeding means 11, 12. The needles are inserted between each series of wefts, and ground fabrics 5, 6 knitted by threads 7, 8. After knitting, the connecting pile threads are cut, yielding two pile fabrics. In an alternative embodiment a loop pile fabric is produced on a single bed warp machine. A loop pile fabric may be produced by knitting through a fleece.
Patent GB-124116-A (GB)
Title: Improvements relating to Electrodes particularly for use in Electric Smelting and like purposes.
Inventor: HAZARD STANLEY CECIL
IPC: H05B7/085
Filed: 1918-06-04
Abstract: 124,116. :Hazard, S. C., and Morris, H. S. June 4, 1918. Furnace details. -In the manufacture of an electrode having screw sockets in its ends, the socket which is to be lowermost in the baking oven is fitted with a plug c of moulders' loam, clay, or the like, or is filled with such material in a plastic condition. Distortion of the socket during baking is thus prevented.
Patent GB-1072801-A (GB)
Title: Cassettes for sound films
IPC: G03B21/32
Filed: 1964-03-04
Abstract: 1,072,801. Sound film cassettes. A. W. KINGSTON. June 4, 1965 [March 4, 1964], No. 9242/64. Addition to 984,767. Heading G5R. [Also in Division G2] A projector cassette for double-run sound film 14 has an opening 23 for the entry of sound head 42 and drive rollers 24, 25 carried on the projector deck as in Specification 984,767 and guides comprising straight slots 31, 32 and corner walls 33, 34 and 36, 37 with rollers 35, 38 for holding the film in a straight path as it crosses opening 23, the film being held against movement when the cassette is not in use by means of manually set friction block 57 acting on drive sprocket 17, or by means of brake pads with slots 31, 32. Film 14 passes twice over sprocket 17 in entering and leaving the gate 15, opening 16 being provided in the cassette to receive the optical system of the projector of the deck on which the cassette is mounted. With cassette in position, device 43 is moved in slot 44 until forks 45 press the film on to head 42, and idler roller 27 is moved in slot 28 to press the film on to driven roller 24. All rollers are recessed in their cylindrical faces so that only the film edges are engaged, while the corner guides 33-37 also engage the centre control strip of the film.