baber/WOPTO huggingface dataset:
Patent GB-874502-A (GB)
Title: Improvements in fuel distribution system for jet propulsion engine afterburners
Inventor: SHACKELFORD MILTON HOWARD
IPC: F02C7/228
Filed: 1958-05-27
Abstract: 874,502. Jet propulsion plant. GENERAL ELECTRIC CO. May 27, 1958, No. 16947/58. Class 110 (3). In a fuel distribution system for jet propulsion afterburners having a series of radially extending spray bars arranged substantially in a plane at right angles to the longitudinal axis of the afterburner combustion zone, and manifolds connecting selected groups of spray bars, fuel control means responsive to engine operating conditions control the quantity of fuel passing to the manifolds and a fuel selector valve positioned in accordance with the engine throttle setting is associated with at least one manifold to control the fuel distribution to that manifold after distribution to the manifolds has been initiated by the fuel control means. The groups of spray bars are brought into operation sequentially and remain in operation until finally all are in operation and complete fuel distribution over the whole combustion zone area is achieved. The fuel spray bars of an afterburner, Fig. 2, are arranged in a number of groups 17, 18, 20, 21, which are connected in pairs to separate fuel supply manifolds 19, 22. It is not essential that the groups 17, 18, 20, 21 overlap as shown. The groups of fuel injectors 17, 18, 20, 21 are represented by triangles 23, 24, in Fig. 3. Fuel supplied by a pump 25 is metered by a control 26 in response to engine operating conditions which, as shown, are compressor discharge pressure and the throttle lever position. In operation, fuel is first supplied by the fuel control through sectors 24 to provide fuel injection in sector patterns and when a predetermined throttle position is reached a fuel selector valve 32 is actuated, and fuel is injected through the additional sectors 23 to provide for uniform distribution throughout the tail-pipe combustion area. In a modification, Fig. 4 (not shown), a flow dividing valve is provided, to divide the fuel flow proportionally between the manifolds 19, 22. To avoid over-rich mixtures at increased fuel flows, the flow-dividing valve may be arranged to vary the proportions supplied to the manifolds as the total fuel flow increases. In another modification, Fig. 5 (not shown), the flow divider valve is used to divide the flow between two fuel injector systems of the kind shown in Fig. 3.
Patent GB-239970-A (GB)
Title: Improvements in or relating to the manufacture of artificial waterproof board
IPC: C04B28/18
Filed: 1924-07-16
Abstract: 239,970. Dickie, R. S., and British Burmah Petroleum Co., Ltd. July 16, 1924. Addition to 219,880. Boards; coated paper; pulp, adding special substances to.-In the manufacture of waterproof artificial board of the kind described in the parent Specification, the silica present in the paddy husk fibre is converted into silicate or other compound capable of acting as a binding and waterproofing agent. The paddy husk fibre (oryza sativa) is boiled with lime, preferably under pressure, until the husk partly disintegrates and the silica is liberated, probably as calcium silicate. The material is then boiled with caustic soda, ground, mixed with about 10 per cent of long fibre material such as hemp, jute, or esparto, and then 5-20 per cent of emulsified bitumen is added and also a small percentage of iron oxide, ochre, or other colouring-matter, the mass being thoroughly mixed in a steam-jacketed mixer. Sheets are then formed in a roller press or the like, coated with bitumen, and the surface dried with talc powder A multiple pulp board may be built up with alternate layers of bitumen, the product being coated with bitumen and talc as before. The sheets may be corrugated.
Patent GB-610325-A (GB)
Title: Improvements relating to scaffolding particularly for use in the construction of buildings
IPC: E04G1/14
Filed: 1945-07-04
Abstract: 610,325. Scaffolding; frames for tents &c. O'SULLIVAN, E. July 4, 1945, No. 17079. [Classes 20(i) and 20(ii)] A scaffolding structure or marquee frame consists of any number of dismountable skeleton units superimposed upon each other, each unit being composed of two parallel unitary frames joined by detachable horizontal members, units having end unitary frames joined by detachable longitudinal members alternating with units having side unitary frames joined by transverse detachable members. A base unit 1, equipped with feet 15, has rigid end frames formed of tubular uprights 10, 11 bolted or welded to horizontal channel members 12, 13. These two frames are detachably connected together by four further horizontal channels 16, 17. Unit 2 has rigid longitudinal frames made of uprights 210, 211 bolted or welded to a horizontal channel member 212, the two frames being detachably connected by two channels 213. Unit 3 resembles unit 1 in having rigid end frames, but, like unit 2, has only one set 312, 316 of horizontal members. The scaffolding is built with both types of unit (2 and 3) alternating and is surmounted by a hand-rail formed by an integral longitudinal framework 610, 611, 612. Fig. 3 shows how the uprights, e.g., 10, 210 are secured to each other by an intermediate internal sleeve or spigot 115 which rests on a further internal sleeve 114 welded to the feet 15. These feet are adjustable and are positioned by means of pins passing through holes 116 in the tubes 10, 114. This Figure and Fig. 5 also show how spigots 225 welded to the detachable horizontals, e.g., 16 fit into sockets 121 made of short lengths of channel iron welded to the uprights. Two adjacent scaffolding towers may be connected together by detachable channel members 20, 220, &c., Fig. 4.
Patent GB-1024458-A (GB)
Title: A metal melting furnace system
IPC: F27D3/14
Filed: 1964-04-24
Abstract: 1,024,458. Agitating molten metal. NORTH AMERICAN AVIATION Inc. April 24, 1964 [April 24, 1963], No. 17127/64. Heading F4B. Molten metal from a melting chamber 20 is pumped through an outlet 44 below the level of melt through a conduit 72 to a charging chamber 18 which is in communication with the melting chamber 20 by a submerged passage 24. This enables scrap metal in the chamber 18 to be rapidly submerged and melted and increases the homogeneity of the melt. A valve 66 and branch conduit 70 enables some of the melt to be tapped off without exposing it to the air. The pump 40 is of the helical rotor electromagnetic type and pump chambers may be built in the furnace structure.
Patent GB-986766-A (GB)
Title: Gas hotplate
Inventor: LAKE FRANK
IPC: F24C15/10
Filed: 1962-05-04
Abstract: 986,766. Gas cooker hot plates. RADIATION Ltd. June 28, 1963 [May 4, 1962], No. 17148/62. Heading F4W. A gas cooker hot plate burner unit comprises incandescent gauze radiant burners b such as referred to in Specification 798,076, having heat-resisting glass cover-plates e supported above the burner radiating heads c by rings f, each of which has three outwardly-projecting, equiangularly-spaced ribs g, g<SP>1</SP> resting on a hot plate pressing h and locating the cover-plates. The rib g is common to adjacent rings f, thereby making the two rings one component. The periphery of each cover-plate extends over spillage troughs l. The cover-plates, which are preferably radially-ribbed, may also be perforated; for example, to house a thermostat sensing head j, which projects through a corresponding aperture in the burner and is shielded therefrom by a tubular extension k. In another embodiment, Figs. 3 and 4 (not shown), each cover-plate is supported above a duplex burner by a metal ring carried by three equiangularlyspaced studs in sockets secured to a hot plate pressing, said studs also clamping the burner head outlet flange to the said pressing. The duplex burners comprise a gauze burner head having central and annular zones fed from vertically and horizontally disposed mixing tubes respectively. The cover-plates may be made of silica glass of the type referred to in Specifications 442,056 and 533,053.
Patent GB-167653-A (GB)
Title: Improvements connected with internal combustion engines
Filed: 1920-06-24
Abstract: 167,653. Kelly, T. D. June 24, 1920. Crank-shafts for internal-combustion engines having pairs of pistons acted on by the same impulse are formed with three throw cranks, the pistons being connected to the outer crank pins B, C, and the inner pin D being unconnected and of twice the weight of the outer pins.
Patent GB-655495-A (GB)
Title: Improvements in and relating to electron discharge tube mountings
IPC: H04B1/036
Filed: 1948-06-25
Abstract: 655,495. Holders for discharge tubes. BRITISH THOMSON-HOUSTON CO., Ltd. June 25, 1948, No. 17180. Convention date, July 5, 1947. [Class 38 (i)] [Also in Group XL (a)] A holder 11 for a discharge tube 10 comprises telescoping members 12, 13 wherein, when the member 12 is moved, the tube is either connected to or disconnected from its circuit by means resulting in the rotation of the member 12 and controlling the speed of the movement thereof at the end of its travel. The tube is mounted and clamped by a ring 22 with its anode 10a in the slotted end of the member 12 to which a plate 20 is secured at 21. The plate 20 is also secured to a rod 18 which passes freely through a spider 14 and carries a second spider 16 on a pivoted joint 9. The spider 14 is fastened at 15 to the member 13 and by flexible chains 17 to the spider 16 so that on rotating the member 12 the spider 16 is caused to approach the spider 14, thereby elevating the member 12 and the tube 10. To enhance the cooling of the tube the spider arms and the plates are apertured. A ring 26 on the member 13 may be employed to hold both members 12, 13 in the extended position. In a modification (Fig. 4, not shown), the spiders are replaced by a plate having a screwed thread which engages a thread on the rod 18. In a further modification the rod engages a threaded bevel gear which is driven by a detachable handle (Fig. 5, not shown).
Patent GB-595518-A (GB)
Title: Method of shrinkproofing and feltproofing of keratinous textile fibres
IPC: B27D1/04
Filed: 1945-07-05
Abstract: Wool and other keratinous fibres are treated with formaldehyde or a formaldehyde-yielding compound and chlorinated with a compound of the general formula <FORM:0595518/IV/1> and water-soluble salts thereof, R being an hydroxyl, alkyl, alicyclic or aryl group and X hydrogen or chlorine.  The formaldehyde treatment is given prior to or simultaneously with the chlorination: if given prior to the chlorination an additional volume of formaldehyde must be incorporated in the chlorinating bath.  Formaldehyde-yielding compounds may be trioxy-methylene, paraformaldehyde, trioxane, methylal, &c.  The chlorinating compounds include N-chlorsulphamic acid and its alkali or alkaline-earth salts and sodium N,N-dichlorsulphamate, but in practice the sodium N-chlorsulphamate and sodium N,N-dichlorsulphamate are most suitable.  The presence of a wetting agent, e.g. sodium salt of sulphonated castor oil or of propylnaphthalene sulphonic acid is desirable.  The temperature may be within the range 5-60 DEG  C. and the time of treatment 30-60 minutes.  The chlorinating compound may be prepared by adding sulphamic acid to a well-cooled solution of sodium hypochlorite and acidifying with glacial acetic acid.  This gives a solution of sodium N,N-dichlorsulphamate containing about 10 per cent of sodium N-chlorsulphamate.  The corresponding calcium salts are prepared, using bleaching powder and calcium sulphamate.  The sodium hypochlorite can be prepared in situ by using soda ash and chlorine. In an example, air-dried woollen fabric is immersed at 20-25 DEG  C. for 30-60 minutes in a bath containing 0.1 g. of a wetting agent and 15-20 c.cs. 35 per cent aqueous formaldehyde per litre of water.  At the end of this period it is placed in a second bath containing (per litre of water) 30-40 c.cs. of a solution of sodium N,N-dichlorsulphamate as prepared above containing 7.0-8.5 per cent of active chlorine, 8 c.c. of 60 DEG  B<\>ae. sulphuric acid and 15 c.c. of 37 per cent aqueous formaldehyde.  This treatment is carried out for a further period of 30-60 minutes after which the fabric is taken out and washed in a neutralizing bath of sodium bisulphite and soda ash (or ammonia).
Patent GB-141577-A (GB)
Title: Improvements in electrical fire alarm systems
IPC: G08B17/06
Filed: 1919-07-09
Abstract: 141,577. Marks, E. C. R., (Spardon Electrical Products Co.). July 9, 1919. Fire-alarm systems.-In an electric fire alarm system for large buildings, the central station is provided with two sets of indicator lamps which show respectively the floor and the position on the floor from which a manual or automatic alarm has been given. An alarm bell is simultaneously rung in the building, and a call may be automatically sent to the municipal station. The manual switches A, B, C, D, and automatic switches 28 &c, are located in the basement, and all serve to illuminate the same lamp F through the relay L. Similarly, the switches A', B', C<1>, D' on the ground floor illuminate the lamp G through the relay M, and so on for the other floors. The switches A, A<1>, A<2> &c. are in similar positions on their respective floors, and serve to illuminate the lamp a through the relay T. The switches B, B<1>, B<2>, &c. corresponding with a second position on each floor, are similarly associated with the relay S and lamp b, and so on for the other positions. Every alarm actuates the relay U to ring an alarm bell V, and a call may simultaneously be sent over the wires 45, 46, to the municipal station. The floor indicators F, G, H, I, J and position indicators a, b, c, d, are located on a board E, which contains a plan of the building.
Patent GB-1497426-A (GB)
Title: Method of and an apparatus for collecting sheet-shaped objects
IPC: G07B15/00
Filed: 1975-04-25
Abstract: 1497426 Stacking sheets L J I LUNDBLAD 25 April 1975 [9 May 1974] 17266/75 Heading B8R To facilitate delivery of a sheet 66 to an onedge pile 100 the pile is compressed and displaced rearwardly of the stacking point by fingers 101. Sensing of a sheet (e.g. a bankrate, ticket, cheque or token) by device 68 actuates a motor to rotate a cam 115 and thereby move the fingers 101 into the magazine to displace the stack rearwardly against the action of spring urged rear plate 41. Upon withdrawal of the fingers plate 41 biases the stack against front stop 71 which stop prevents the delivery roller 65 from engaging the stack. When the magazine is full a linkage connected to plate 41 actuates a relay and the delivery means is deactivated. The magazine may then be detached from the apparatus.
Patent GB-873672-A (GB)
Title: Non-reciprocal wave transmission device
IPC: H01P1/19
Filed: 1960-05-16
Abstract: 873,672. Non-reciprocal transmission devices. HUGHES AIRCRAFT CO. May 16, 1960 [June 8, 1959], No. 17278/60. Class 40(8) A non-reciprocal wave-transmission device comprises a structure normally utilizing the TEM mode of propagation, e.g. a coaxial line or a strip line, provided with spaced, transverse, conductive elements so disposed as to create two regions of different propagation velocities, a strip of ferrite being disposed along the boundary between the regions. In the coaxial tine 12, 13 shown, spaced, semi-circular, conductive members 14 create a slow-wave region in one half of the line. This results in the propagation of a hybrid mode, partly TE and partly TM, which has a circularly-polarized component on the boundary of the region. Thus a non-reciprocal effect may be obtained by locating ferrite strips 16, 17 on this boundary. With a weak polarizing field H non-reciprocal phase-shifts are obtained. Non-reciprocal attenuation may be obtained if the strength of the field is sufficient to cause gyromagnetic resonance. The discs are conductively connected to the inner conductor (as shown) or to the outer conductor (Fig. 3, not shown).
Patent GB-612943-A (GB)
Title: Improvements in non-refillable bottle closures
IPC: B65D49/06
Filed: 1946-06-11
Abstract: 612,943. Non-refillable bottles. WHITTAM, A., and HAIG & CO., Ltd., J. June 11, 1946, No. 17372. Addition to 588,468. [Class 125 (i)] The closure claimed in the parent Specification is modified in that the lower end of the sleeve 2 is closed by a flat. wall 7 provided with outlet orifices 23 sealed by the valve disc 8. The latter, has projections 19 on its upper surface and the lower end of the weight 16 is flat, The sleeve and the nozzle 10 are held on the bottle by a metal capsule 20 pressed into grooves 26, 27.
Patent GB-797011-A (GB)
Title: A swivel connector for flexible control cables
IPC: F16C1/22
Filed: 1955-06-16
Abstract: 797,011. Castor brakes. FLEXELLO CASTORS & WHEELS, Ltd., and WAPSHOTT, S. E. April 27, 1956 [June 16, 1955], No. 17420/55. Class 103(1). [Also in Group XXIV] A brake lever 19 on a bracket attached to the forks 22 or the axle of a swivelling castor wheel is actuated by a Bowden cable 5 which passes through the swivel axis and is coupled to a coaxial cable 51 through a connector 1-7 allowing free relative rotation between the two cables. The thimbles 3 on the outer casings of the two cables are received in a fixed bracket 1, the lower thimble being rotatable in the bracket. The inner cables 5<SP>1</SP>, 5 are respectively inserted in diametrically slotted plugs 8, 9 and the plugs are then connected by a casing 7, the plug 8 being pinned therein while the plug 9 is rotatable on a ball-bearing 17 therein. The displaceable casing 7 is loaded by a spring 18.
Patent GB-895591-A (GB)
Title: Improvements relating to apparatus for representing a varliable magnitude as an electrical analogue signal
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: G01S13/68
Filed: 1957-05-31
Abstract: 895,591. Radar; automatic phase control systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. June 2, 1958 [May 31, 1957], No. 17461/57. Classes 40(5) and 40(7). The invention provides apparatus for representing and storing a variable magnitude as an electrical analogue signal comprising means for generating a reference oscillation, means for cyclically varying the phase angle of said reference oscillation to provide a scale reference, means for generating another oscillation, means for deriving signals in response to the occurrence of a predetermined phase angle relationship between the two said oscillations, means for dividing the frequency of said derived signals by an integral number (n) to produce timing signals in response to every nth occurrence of said predetermined phase angle relationship, and means responsive to variations in the time of said timing signals relative to applied signals, the time of which is dependent on said magnitude, to adjust the phase angle of said other oscillation so that the phase angle of said other oscillation forms the analogue signal, the arrangement being such that a plural integral number (n) of complete rotations of phase angle of said other oscillation represents unit change of said magnitude, thereby to improve the stability of the apparatus. As applied to a radar system wherein the variable magnitude is a radar target's bearing, the signal from a reference oscillator 6 is cyclically varied in phase by a phase shifter 5 geared to the rotating radar aerial 1 so that there are n complete phase cycles for each revolution of the aerial. An oscillator 10 gives a second signal having a frequency equal to that of the reference oscillator and being adjustable in phase. The phase of oscillator 10 is the analogue signal representing the target bearing. The first and second signals pass to circuits 7 and 9 respectively, which each give a pulse when the applied signal rises through zero potential. A gate 8 gives an output pulse each time there is coincidence between the pulses fed to it from circuits 7, 9. Unit 12 gives a single pulse for each n pulses from gate 8, these single pulses acting as bearing stroke pulses for a bearing gate 13. Received radar echo signals pass via a range gate 15 to the bearing gate 13 which feeds an error unit 16. if the echo signals lie symmetrically within the bearing strobe pulse, gate 8 generates n pulses in precisely one revolution of the aerial, and no error signal is generated. The error signal which is generated if the echo signals lie symmetrically of the strobe pulse is fed to a reactance valve 11 to alter the phase of oscillator 10, thereby to produce n coincidences in rather more or rather less than one revolution of the aerial. The strobe pulse is therefore shifted until the echo pulses again lie symmetrically within it so that the error signal is reduced to zero.
Patent GB-204382-A (GB)
Title: Improvements relating to fuel injecting means for internal combustion engines
IPC: F02B23/00
Filed: 1922-06-27
Abstract: 204,382. Hesselman, K. J. E. June 27, 1922. Valves.-In engines provided with means to cause rotation of the air within the combustion chamber, a semicircular shield 8 on the head of the air-admission valve causes the air to enter in a tangential direction, thus setting up the required rotation.
Patent GB-900692-A (GB)
Title: Improvements relating to frequency modulators
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: H03C3/08
Filed: 1957-06-04
Abstract: 900,692. Frequency modulation; automatic frequency-control systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. Sept. 3, 1958 [June 4, 1957], No. 17640/57. Class 40 (5). In a frequency-modulated oscillator two separate negative feed-back paths are used, one including a frequency counting demodulator 19 for linearizing the frequency modulation, and the other having a narrow frequency range including zero frequency for stabilizing the mean frequency. In the second (A.F.C.) path the F.M. oscillations reduced in frequency by a mixer 8, and oscillations of constant frequency equal to their nominal mean frequency are both applied alternately by a switch 22, operated at 1 c/s. by a multivibrator 27, to a frequency demodulator 20 of counting, i.e. diode pump type, similar to 19, whose rectangular wave output, at 1 c/s., is detected in both amplitude and phase sense in a synchronous detector 26, by an equal switching frequency (1 c/s.) from the multivibrator 27 to derive an A.F.C. voltage, correcting any mean frequency drift of the F.M. oscillations applied to the modulating reactance valve 5 or a separate reactance valve 21 connected with the F.M. oscillator 6. Specifications 596,459 and 900,693 are referred to.
Patent GB-973551-A (GB)
Title: Improvements in or relating to line casting machines
IPC: B41B11/72
Filed: 1963-05-03
Abstract: 973,551. Type-bar making machines. LINO. TYPE G.m.b.H. May 3, 1963 [May 5, 1962], No. 17687/63. Heading B6W. Trimming type-bars.-A slug trimming arrangement for line casting machines, comprises a pair of trimming knives 1 and 2; fluid pressure actuating means for yieldingly urging knife 2 toward knife 1; and abutment means for positive blocking of the movement of knife 2 toward knife 1 in a cutting position in which the knives are spaced from each other corresponding to the predetermined point size of the slug. A mold disc 4 has mold means including a pair of liners 7 with abutments 8 formed thereon corresponding in size to the required point size of the slug. The knife 2 is mounted on a slide 16 biased away from knife 1 by a spring 32. A fluid pressure pipe line 23 cooperates with a cylinder 20 within the slide 16, and a piston 26 abuts a fixed frame member 29 to urge the slide 16 with knife 2 toward knife 1. A pair of rods 11, adjustably screwed to the slide 16, abut abutments 8 to positively space the knives the predetermined amount. When a valve (not illustrated) terminates the fluid pressure to the cylinder 20, knife 2 is withdrawn from knife 1 under the action of the spring 32 as the mold disc 4 moves away from the knives. A lever 39, pivoted at 38 to the slide 16 and spring biased in a clockwise direction, engages a stop member 37 fixed to the frame. Knife 2 is not moved to the operative position until the mould disc 4 approaches the knives to eject another slug. In doing so, the disc 4 engages an adjustable screw 36 on the lever 39, thereby releasing the lever 39 from the stop member 37.