baber/WOPTO huggingface dataset:
Patent GB-806813-A (GB)
Title: Improvements in or relating to devices for operating vacuum flash lamps
IPC: G03B15/04
Filed: 1956-01-25
Abstract: 806,813. Oscillating generators. BAERMANN, M. Jan. 25, 1956 [Jan. 28, 1955], No. 2524/56. Class 35. [Also in Groups XXI and XXXVI] An oscillating generator forms part of flashlamp apparatus in which a permanent magnet is used to produce a firing voltage and comprises a housing 3 for the electromagnetic means and a reflector 1 is pivoted on the housing with a lampholder 5 mounted in the reflector. Within an extension 7 of the holder 5 are caps 8, 9 held apart by a spring 10, so that a pin 11 projecting from cap 8 engages a lamp 6 within the holder. A pin 14 extends from cap 9 into a recess 16 in the housing. On removing the lamp 6 the pin 11 is thrust further into the holder and prevents the insertion of a new lamp, at the same time spring 17 is tensioned. When the reflector is turned through 90 degrees, the pin 14 enters a deeper recess 18 and pin 11 is withdrawn so that a new lamp can be inserted. As the reflector turns a toothed segment 19 rotates and engages a rack 20 raising the rack until pin 14 nears recess 18, when the rack is disengaged. Upward movement of the rack tensions a spring 22 and lifts a rod 24 to which are attached a core 26, a spring contact 28, and a plate 27, until the contact 29 touches a contact 30 and core 26 touches a plate 32. Between plates 32, 35 and surrounding the core 26 are a permanent magnet 33 and a coil 34, the plates and coil being ferromagnetic. As the rack 20 rises a spring 37 flexes a spring 38 to close contacts 39, 40 momentarily and so short-circuit a condenser 36 to remove any residual charge on the condenser. When the rack is released, spring 22 drives rack and core downwardly inducing a current in coil 34, which charges the condenser 36 through contacts 29, 30, the contacts being broken before the end of the stroke, when the plate 27 is held by a magnet 41. The reflector can then be turned back to the discharge position for the lamp 6. Through a window 44 in the housing 3, an electrometer 43 in circuit with a camera shutter can be viewed to test the lamp 6. By closing the synchronized contact of the shutter, the condenser is discharged through the lamp. In a modification, the lamp discharge voltage is produced by rotating a spring-stressed weighted disc to drive the core of the magnet, a spring-pressed lever being used to block the lampholder until the disc is rotated, when the weight carried by the disc moves the lever out of the holder recess. Insertion of a new lamp releases the weight and the lever engages the lamp to prevent withdrawal, while the weight as the disc returns drives the core of the magnet.
Patent GB-1202291-A (GB)
Title: A rotor for a rotorcraft
IPC: B64C27/605
Filed: 1968-01-17
Abstract: 1,202,291. Rotorcraft. MESSERSCHMITTBOLKOW - BLOHM G.m.b.H. 17 Jan., 1968 [25 Feb., 1967], No. 2594/68. Heading B7W. A rotorcraft rotor having blades hinged for flapping and pitch-change movements having collective and cyclic pitch change control (e.g. by a swashplate, 15 control rod 22 and horn 25 arrangement) has the flapping angle of a blade whose axis points forward v transmitted (e.g. via swashplates 31, 32 and a link 37) to influence the collective pitch change (e.g. supplied by rod 42) so that an upward flapping position decreases the collective blade pitch (and vice versa). In the embodiment illustrated the rotating swashplate 31 is suspended by links 33, 35 from the blades and the degree of influence of the flapping on the collective pitch change can be varied by adjusting the position of a pin 41 on the end of rod 42 in a slot in a lever 39.
Patent GB-195212-A (GB)
Title: Improvements in expansion joints between steam boilers and their settings or flue walls
IPC: F23M5/02
Filed: 1922-01-30
Abstract: 195,212. Crawshaw, E., and Stuart, W. Jan. 30, 1922. Flues, external.-Expansion joints between steam boilers and their flue walls comprise two vertical sliding plates in cavities in the walls which are maintained against the boiler by weighted levers in combination with an upper horizontal sliding plate maintained in contact by springs. Each vertical plate 17 moves in guides 16 fixed to a plate 15 which also carries the weighted lever 18. The lever has a pin-and-slot connection 19 with the plate 17 and holds it against the boiler. A top plate 20 carries guides for a horizontal sliding plate which is held in contact by springs 25 on guide pins 24.
Patent GB-620874-A (GB)
Title: Improvements in and relating to electric water heaters
IPC: F24H1/20
Filed: 1947-01-28
Abstract: 620,874. Domestic hot water supply systems. BERRY, R., and PAINTON, C. A. Jan. 28, 1947, No. 2680. [Class 64(i)] A hot water tank 1 is lagged at its upper part only, as at 2, has an electric immersion heater which may enter at the top as at 5, complete with controlling thermostat, or from the lower end as at 7, in which case it has a separate controlling thermostat 6, and has flow and return openings 3, 3' at points below the lagging for connection to a fired boiler (not shown), a hot water outflow opening 4 being located at the top of the tank 1 and the thermostat being inside the lagged upper part of the tank. The cold water inlet 9 is at the bottom of the tank 1.
Patent GB-489566-A (GB)
Title: Improvements in and relating to the manufacture of record cards
IPC: G06K19/02
Filed: 1937-01-29
Abstract: 489,566. Record-cards; cutting paper. VALTAT, R. L. A. Jan. 29, 1937, No. 2699. Convention date, April 7, 1936. [Classes 31 (i) and 96] Cards for statistical machines are made by storing paper blanks 1, about 3 per cent oversize in one or both dimensions, for several days and then trimming to the exact dimensions required. The cards are preferably trimmed by a pair of feed rollers 5, 6, each formed with a pair of cutting edges co-operating with those of the other roller and spaced apart a distance equal to the required dimensions of the cards ; the roller 6 is formed with flanges 7, and the blanks are fed to the rollers from a magazine 2 by a picker 3.
Patent GB-469612-A (GB)
Title: Improvements relating to apparatus for operating railway points and signals and the like
IPC: B61L7/04
Filed: 1936-01-29
Abstract: 469,612. Hydraulic transmission of power. ROBERTS, W. S., BURTON, J. H., and RAILWAY SIGNAL CO., Ltd. Jan. 29, 1936, No. 2711. [Class 69 (ii)] [Also in Group XXX] A two-pipe hydraulic control apparatus for railway points, signals, &c., of the kind in which a connection between a reservoir and the pipe system is automatically established at the extreme positions, is characterized in that each pipe line, x or y is continuously connected with the reservoir t through a retaining valve v<1> or v<2> which permits liquid to flow from the reservoir into the pipe line, means being provided for permitting reverse flow between at least one of the pipe lines and the reservoir at each of the two extreme positions. In the form shown in Fig. 1 for the control of points, two cylinders c\ c<2> contain pistons p<1>, p<2> which are coupled to a point setting lever l, so that when the latter is moved from one extreme position to the other, liquid is forced through the pipe x or y to move pistons p<3>, p<4> coupled to the points. The flow of liquid from reservoir t to the pipe lines is controlled by two spring-pressed non- return valves v<1>, v<2>, of which v<1> is closed and v<2> open when l is in position N, and conversely when l is in position R. When the release lever h is gripped for moving l, the valve v<2> closes. Near the cylinders c<3>, c<4> are two other non-return valves v<3>, v<4> of which one or other is held open by a cam m on the point-operating rod when the points are in either extreme position, to permit expansion liquid to flow between the pipes x, y. They also prevent unauthorized movement of the points, since the initial movement of the cam m closes the open valve so that the pistons p<3>, p<4> are locked. In another form the pistons are locked by one or other of a pair of plungers engaging slots in the point-operating rod and actuated by a pair of auxiliary hydraulic cylinders connected to the pipes x, y. In another form for operating two sets of distant points, the liquid pressure is supplied by a pump to the pipe lines, and communication between the reservoir and pipes is controlled by two sets of non-return valves operated by two handcontrolled cam slides. In another form for an interlocking system of points and signals, a pair of signals are operated by a pair of hydraulic cylinders supplied with liquid through two pipe lines by a pair of hydraulic pistons operated by a pair of levers l, and the flow between the two sets of cylinders and between the reservoir and the pipes is controlled by a set of valves operated by a cam slide linked to the points.
Patent GB-380697-A (GB)
Title: Apparatus for the uniform distribution of tobacco in the spreaders of cigarette-making machines
IPC: F21V17/14
Filed: 1932-01-29
Abstract: 380,697. Cigarette-making machines. UNIVERSELLE CIGARETTENMASCHINEN-FABRIK J. C. MLLER & CO., 48, Zwickauer Strasse, Dresden, Germany. Jan. 29, 1932, No. 2723. Convention date, Feb. 6, 1931. [Class 130.] In order to obtain a more uniform distribution of tobacco which is fed to the machine by pneumatic means, an impact member 4 is arranged in the path of the current of tobaccoladen air entering the chamber 2 from a pipe 1 and funnel 3. The member 4 is preferably reciprocated between the positions shown in full and dotted lines, by crank discs 9 and connecting-rods 7. A wedge-shaped deflector 15 is attached to the member 4 at the centre of the incoming stream. The member 4 may be curved so that the tobacco is deflected downwards at an angle to the member. The deflector 15 is adjustable transversely of the member 4.
Patent GB-1209491-A (GB)
Title: Improvements in vapour rinsing
Inventor: CLARKE MICHAEL
IPC: C23G5/00
Filed: 1967-01-18
Abstract: 1,209,491. Cleaning using steam. LANCY LABORATORIES Ltd. Jan. 16, 1968 [Jan. 18, 1967], No. 2732/67. Heading C7E. Workpieces 1, e.g. of plastic or other non-metal surfaces subjected to chemical treatment prior to plating or of metal previously subjected to an electrolytic, electrophoretic or chemical treatment process, are rinsed by feeding them into a chamber 3 and feeding steam from an external evaporator 4 connected by conduits to the chamber downwardly over said workpiece so as to cause condensation thereon and rinsing by the condensate which is recycled to the evaporator. Preferably the workpiece is dipped into cold water prior to contact with the steam and after the steam condensate rinsing are allowed to cool in air. This sequence of steps may be repeated. In a modification, Fig.2 (not shown) provision is made for feeding workpieces transported by a conveyer arrangement vertically into the rinsing chamber the lower part of which is also vertically movable.
Patent GB-136366-A (GB)
Title: Improvements in Centrifugal Pumps.
Inventor: STEWART ROBERT
IPC: F04D7/06
Filed: 1919-02-05
Abstract: 136,366. Stewart, R., and Allen, M. Feb. 5, 1919. Casings; pumping-machines.-The casing i, i' is supported beneath a girder frame a<1> which rests on the tank b from which liquid is to be pumped, and carries the bearings fl, g for the impeller shaft. A belt-driven pulley k may be fitted to the shaft, or an electric motor may be mounted on the upper end of the shaft. Specification 117,145 is referred to.
Patent GB-469670-A (GB)
Title: Improvements relating to the tuning of radio receivers with inter-channel noise suppression
IPC: H03G3/26
Filed: 1936-01-30
Abstract: 469,670. Valve circuits for wireless reception. COLE, Ltd., E. K., and BRADFIELD, G. Jan. 30, 1936, No. 2798. [Class 40 (v)] A highly selective circuit provides a voltage for removing interchannel noise suppression which becomes operative after a predetermined time-lag when the receiver is correctly tuned. The selective circuit S3 is fed with a control wave which may be of 20 KC. and is produced by beating oscillations produced by a triode in the I.F. amplifier V2 with the I.F. signal in the same valve. The control wave is fed through a tuned transformer P2, S2 'to the L.F. amplifier V4 an auxiliary grid coil P3 of which is coupled to the coil S3. The output of the circuit S3 is rectified by a diode V5 which produces a positive voltage fed through the time-lag filter R, Cl to neutralize a paralyzing negative voltage normally applied to the outer grid of valve V4. A diode D1 in the detector valve V3 becomes conductive to prevent the outer grid of valve V4 becoming excessively positive. The volume control potentiometer VR1 may be ganged to a switch which disables the oscillator section of valve V2 and connects the outer grid of valve V4 to the cathode when the volume control approaches its maximum volume position. The control wave may be dispensed with and the selective circuit operated by the I.F. signals. Reference has been directed by the Comptroller to Specification 444,391.
Patent GB-178914-A (GB)
Title: Device for the regulation of wire gauze in paper-making machines and the like
IPC: D21F1/36
Filed: 1921-01-21
Abstract: 178,914. Spangenberg, J. M. L. Jan. 21, 1921. Guiding-mechanism.-A device for regulating the lateral position of the wire-cloth 1 in a papermaking machine, comprises a transverse regulating-roller 4, one end 5 of which is carried in a bearing 6 by one arm 7 of a bell-crank lever 8 pivoted at 9. A pipe 13, provided with a transversely-extended nozzle 14, is arranged to spray liquid so that half impinges on the edge 15 of the wire-cloth 1 and half is sent past the edge and through a channel 16 to a receiver 11 suspended from the other arm 10 of the lever 8. An adjustable discharge 12 fitted to the receiver 11 is arranged so that, under normal conditions, the inflow and outflow are equal and the liquid level in the receiver 11 is constant. A spring 17, or a weight, is arranged to counterbalance, the receiver 11 and its normal liquid content, and to maintain the lever 8 in such a position as to keep the roller 4 at right-angles to the wire-cloth. On a lateral displacement of the wire-cloth, the inflow of liquid to the receiver 11 is affected and the arm 8 moves up or down, thereby causing a corrective movement of the roller 4. Instead of acting directly on the wire-cloth, the spray may act on a member controlled by it; also two sprays may be fitted, one on each side of the wire-cloth and normally passing clear, but one being obstructed on a lateral movement of the cloth. The receivers may be fixed and provided with floats connected to the regulating-roller.
Patent GB-902891-A (GB)
Title: Photographic silver halide emulsions
IPC: G03C1/053
Filed: 1960-01-26
Abstract: Film-forming colloids suitable for the preparation of silver halide dispersions in the production of photographic emulsions comprise copolymers of on a weight basis (a) 60 to 98% of methacrylamide and/or acrylamide, (b) 1 to 38% of an ester of acrylic or methacrylic acid with a monohydric C1 to C20 saturated alcohol and/or a vinyl ester of a saturated C1 to C20 aliphatic carboxylic acid, and (c) 1 to 24% of an olefinically unsaturated compound containing one or more acid groups.  For component (b), specified alcohols are methanol, ethanol, iso-propyl alcohol, n-butyl alcohol, iso-nonyl alcohol, cetyl alcohol, cyclohexyl alcohol, and benzyl alcohol, while the specified vinyl esters are acetate, propionate, butyrate and stearate.  For component (c) the compounds may be carboxylic, sulphonic, or phosphonic acids such as acrylic acid, methacrylic acid, sorbic acid, or maleic acid, fumaric acid, itaconic acid, citraconic acid as well as semi-esters of these acids with the above-mentioned alcohols, vinyl or styrene sulphonic acids, or vinyl phosphonic acid.  Elastic films may be formed by cross-linking with formaldehyde.  Typically the copolymers are formed by homogeneously mixing in water in a stirrer type vessel methacrylamide, acrylamide, methyl acrylate and methacrylic acid under a nitrogen atmosphere, heating to 75 DEG C. and polymerizing by adding potassium persulphate to yield say a 12% polymer solution.
Patent GB-249083-A (GB)
Title: Improvements in or relating to split pulleys
IPC: F16H55/46
Filed: 1926-02-01
Abstract: 249,083. Compagnie d'Applications MÚcaniques. March 16, 1925, [Convention date]. Pulleys.-In pulleys of the type in which an outer band or rim 3 in two or more sections is secured upon a body which is clamped to the shaft and comprises a hub, spokes or web, and an inner rim also formed in two or more sections, the rim sections 3 are keyed, welded, riveted, &c. at their centres 4 to the inner rim and have slots 8 engaging projections 7, which may take the form of screwed studs, secured in the inner rim to prevent relative axial movement of the parts.
Patent GB-1178665-A (GB)
Title: Improvements in or relating to Sight Glasses
Inventor: LEECH GERALD JOHN
IPC: G01F23/02
Filed: 1968-01-19
Abstract: 1,178,665. Lubricating. MASSEY-FERGUSON-PERKINS Ltd. 3 Dec., 1968 [19 Jan., 1968], No. 2959/68. Heading F2A. [Also in Division G1] In a method of adapting a liquid container to facilitate the determination of the liquid level therein, the method includes the steps of providing an aperture on the container side and fitting in the aperture, in a fluid tight manner, a sight glass 1 having an elongate transparent partition presenting a surface 5 of uniform concavity, extending the height or depth of container, so as to make prominent the liquid level in the container. The outer surface of a plastics sight member 1 is also concave and the member 1 is held in position in the container such as an engine housing or a stanchion 9, Fig. 3, by screws passing through apertures 8.
Patent GB-908039-A (GB)
Title: Improvements in or relating to push-pull transistor inverters
Inventor: NEWELL ALLEN FREDERICK
IPC: H03K3/30
Filed: 1959-06-29
Abstract: 908,039. Transistor oscillator circuits. MULLARD Ltd. Jan. 27, 1960 [June 27, 1959], No. 2963/60. Class 40 (6). A transistor inverter or square-wave generator comprising a pair of transistors T1, T2, the collector circuits of which are connected to windings 1, 2, respectively, of a transformer, and a capacitor-inductor time constant circuit CL connected in series with a third winding 3 between the base circuits of the transistors. Assuming transistor T2 to be bottomed and T1 cut off, the base current of T2 will start to fall due to capacitor C, and once the collector current starts to fall, the transistor is rapidly cut off due to the feed-back action of the transformer. Capacitor C then discharges to provide a forward bias for T1, diodes D1, D2 being provided to give a low impedance path across the cut-off transistor. Resistors may be connected between the base of each transistor and the supply line to ensure starting.
Patent GB-838450-A (GB)
Title: Improvements relating to nuclear reactors
Inventor: COCKS ANTHONY MAURICE
IPC: G21C5/00
Filed: 1957-01-28
Abstract: 838,450. Nuclear reactors. A. E. I.-J. THOMPSON NUCLEAR ENERGY CO. Ltd. Jan. 10, 1958 [Jan. 28, 1957], No. 2990/57. Class 39(4). In a reactor having fuel channels in a solid moderator each of the channels is loaded with fuel elements along sections only of its length, the spaces between the loaded sections being unloaded or dummy loaded. The fuel channels are arranged in groups of four. Detachable blocks of moderator material each comprise one section of the group of four channels, only one of the channels being occupied by a fuel element. These detachable blocks 2 fit in the graphite structure of the reactor. Each fuel element comprises longitudinal fins 3 and a spider which supports the element within the block.
Patent GB-284611-A (GB)
Title: Improvements in or relating to an installation for automatical interruption of the fuel supply of liquid fuel burners operated by artificial combustion air
IPC: F23N5/24
Filed: 1928-01-31
Abstract: 284,611. Akt.-Ges. Prior Patentverwertungsges., (Assignees of Ruegsegger, W.). Jan. 31, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Liquid fuel supplg.-A constant level fuel tank 1 is connected by a pipe 6 to the compressor or blower 5 supplying air to the burner 3 and the fuel pipe 2 leading from the tank 1 to the burner is provided with a bend 15 above the normal fuel level in the tank. When the blower is in operation the air pressure in the tank 1 is sufficient to cause the fuel to flow over the bend 15 to the burner. A vent pipe 16 open to the atmosphere is connected to the bend 15 so that when the blower stops the fuel flow also stops. The fuel level in the pipe 16 indicates the pressure in the tank 1 during normal working. The pipe 6 is fitted with a safety cut-off device 19 comprising a. piston 21 which is raised when the blower is started to connect a duct 22 leading from the blower to a duct 23 leading to the tank 1. When the blower stops the piston 21 descends by gravity or spring pressure and thereby shuts off the duct 23 and places the duct 22 in communication with the atmosphere through openings 24, thus preventing any fuel flow on the blower being restarted until the piston has been again raised. The fuel is supplied to the tank 1 from a. reserve tank 8 through a water separator 7 and a float-operated valve 13. The reserve tank 8 is filled from a reservoir 11 by means of a pump 10. Overflow pipes 25. 12 lead from the tank 1 and burner 3 respectively to the reservoir 1, the pipe 25 being provided with a bend 26.
Patent GB-286060-A (GB)
Title: Improvements in or in connection with overhead picking sticks of looms for weaving
IPC: D03D49/38
Filed: 1927-02-03
Abstract: 286,060. Horrocks, W. H., and Slowe, A. J. Feb. 3, 1927. Picking-sticks.-The picking- stick 1 is provided with a tapered removable sleeve or cap 5 preferably of aluminium and having an integral or separate rim or collar 8 which is screwed to the neck 4 of the stick and is adapted to receive the usual leather loop 9. The sleeve may be arranged to be sprung over the neck, be rolled around it, or applied as an open-ended tube by making the collar at the end of the neck removable. In some cases, a composition is moulded around the neck and is hardened under pressure or on drying.
Patent GB-701423-A (GB)
Title: Improvements in containers for viscous products
IPC: B65D35/34
Filed: 1952-02-06
Abstract: 701,423. Collapsible tubes. WEINSTEIN. P. S., and JOUKOVSKY, S. Feb. 6, 1952, No. 3140/52. Class 66 A collapsible tube container for viscous material consists of a tubular body 1 with a closure member such as a screw on cap 5 secured by chain 6 at one end and left open at the opposite end 2 In this outer body may be placed a deformable inner container 7, the top fiap-like extensionbeing removed along the line 9 before its insertion and the end 2 of the body then closed by a temporary closing means in such manner as to keep it closed against pressure applied to eject a portion of the material through the nozzie 3 of the tube. When the container is empty a new inner container 7 may be inserted in place of the one. emptied. The outer body may be made of flexible sheet material such as plastic (e.g. polyethylene, nylon, polyvinyl chloride or polyvinyl acetate), rubber or treated fabric. The inner container may have relatively low tensile strength and be made of similar plastic material, "Cellophane" (Registered Trade Mark), or waterproofed paper or fabric. The temporary closing means may consist of a bar or rod 13 permanently attached to a flap 12 extending from one side of the bottom of the tube around which the flap and end of the tube may be wound and secured by a clamp member passing through a hole in the end of the bar, Figs. 5 and 6 (not shown), or by a separate spring clamp member 16. A different closing means consists of a resilient fork-like clip 18 which has an open-ended pivoted locking clamp at one end, Fig. 9 (not shown), or a closed locking clamp 19 having cylindical portion 20 which may be sprung into retaining notches 21 in the end of the legs of clip 18.