baber/WOPTO huggingface dataset:
Patent GB-203632-A (GB)
Title: Improvements in rotary pulverisers
IPC: B02C13/13
Filed: 1923-03-24
Abstract: 203,632. Squassi, A. March 24, 1923. Imapact pulverizers.-Relates to pulverizers of the type in which the pulverized material is drawn by means of an air current into a chamber where the heavier particles are separated out and returned to the pulverizer. The pulverizing- chamber 1 has an air-supply opening 9 to its interior separate from the opening 10 through which the material to be pulverized is fed, beaters or hammers 8 rigidly mounted on a flywheel 7 within the chamber, and a separate fan 11 mounted within the chamber coaxially with the flywheel 7. The separating or filtering chamber 13 is divided diagonally into two parts by a removable screen 18 through which the fine material is blown, while the insufficiently-ground particles pass upwards and return by a conduit 17 to the chamber 1. The shaft 4 carrying the flywheel 7 and fan 11 is supported at one end in the coverplate 2 of the chamber 1 and at the other end in a bracket 6. The hopper with the two charging openings 9, 10 is carried by the cover-plate 3, and crushing-surfaces 12 are formed on the sides of the casing 1.
Patent GB-1449723-A (GB)
Title: Feed-forward error-correcting systems
IPC: H03F1/32
Filed: 1974-02-26
Abstract: 1449723 Amplifiers WESTERN ELECTRIC CO Inc 26 Feb 1974 [2 March 1973] 8569/74 Heading H3W In an error correcting arrangement an input signal is divided into two components one of which is coupled to a signal processing circuit; means are provided for forming from the modulation components of (1) the output of the signal processing circuit and (2) the second of the input signal components an error signal corresponding to the error introduced by the signal processing circuit, and this error signal is modualated on to the output from the signal processing circuit so as to reduce or eliminate the error in the output signal. In an amplifying arrangement for phase-modulated signals, the input is applied to terminal 1 (Fig. 2) of hybrid coupler 14, output terminal 3 of which is coupled to the input of signal amplifier 15. Output terminal 4 provides one input to phase detector 21, via delay network 16; the second input to error detecting phase-detector 21 is derived from amplifier 15 via sampling coupler 17 and adjustable phase-shifter 42. The main output from sampling coupler 17 is applied via delay network 23 to port 1 of circulator 30 which forms a phase-modulator, port 2 being coupled to a parallel resonant circuit formed by inductor 32 and varactor diode 31. Diode 31 is biased to a suitable working point by means of D.C. bias source 35 and derives a variable bias from errordetector 21 via amplifier 22 and R.F. choke 33. Limiters 40, 41 may be included in the respective inputs to error-detector 21. In an arrangement for amplitude modulated signals, this arrangement is modified in that the errordetector 21, Fig. 5 comprises a pair of diode detectors 52, 53, the detector 52 being coupled to port 4 of sampling coupler 17 via an adjustable attenuator 59. The outputs from detectors 52, 53 are combined in opposition by mans of differential amplifier 54 and the output applied via amplifier 22 to an amplitude-modulator comprising variable impedance diode 56 coupled to port 2 of circulator 55.
Patent GB-164547-A (GB)
Title: Improvements in and relating to the treatment of pulverulent or granular materials with gases and particularly to the roasting of ores and the like
IPC: F27B1/10
Filed: 1920-03-23
Abstract: 164,547. Martin, R., and Richards, J. I. March 23, 1920. Charging and discharging.-A charge agitating and conveying device for use in connection with an apparatus for treating pulverulent or granular materials with gases, for example, a roasting- furnace, comprises a reciprocating frame 8 carrying a scraper blade 4 and stirring-teeth 5, which are brought into operation automatically according to the direction of movement. A squared shaft 7, pivoted in bearings in the frame, carries the blade and teeth, and also a sector-shaped member 19 which moves in contact with the hearths. As the apparatus is reversed at the end of its stroke, the member 19 rotates the shaft 7 to bring the blade or teeth into action according to the direction of motion. The reciprocation is effected by cables 10, 13 passing over pulleys 11, 14, the latter of which are geared together and are driven alternately in opposite directions. Alternatively, the reciprocation is effected by bars reciprocating at the sides of the furnace. The parts of the apparatus exposed to high temperatures are made of heat-resisting alloys such as nichrome, nykrom, or cobaltcrom.
Patent GB-197484-A (GB)
Title: Improvements in or relating to electrically propelled coke trucks
IPC: B60L11/18
Filed: 1922-03-24
Abstract: 197,484. Electricars, Ltd., and Kemp, J. P. March 24, 1922. Drawings to Specification. Stop-gear.-In an electric coke truck for gas works in which accumulators are arranged in a covered structure above the motor a safety switch completes the electric circuit only when a pedal is depressed.
Patent GB-877183-A (GB)
Title: Process and apparatus for the manufacture of granular products
IPC: B01J2/20
Filed: 1959-03-12
Abstract: 877,183. Granulating plastic materials. FARBWERKE HOECHST A.G. March 12, 1959 [March 12, 1958], No. 8642/59. Class 87(2). A process of granulating pulverulent materials comprises forcing the material, at a temperature of from ambient to below the melting temperature of the material, through a plurality of bores in a compression chamber 1 by means of a piston 2 whose face area in relation to the sum of the bore areas has a ratio of from 1À2: 1 to 2À2: 1. The return stroke of the piston 2 may, by suction, recharge the chamber 1 through an inlet 7. The material, prior to extrusion, may be contained in a pressurized annular chamber 8, Fig. 2. The granulation of various materials and the sizes of piston faces and bores are described. The piston may be replaced by a screw.
Patent GB-827125-A (GB)
Title: Improvements in rockets carried in clusters by a launching machine and in particularan aircraft
IPC: F41F3/06
Filed: 1958-03-18
Abstract: 827,125. Launching rockets from aircraft. BREVETS AERO-MECANIQUES S.A. March 18, 1958 [March 27, 1957; Aug. 27, 1957], No. 8679/58. Classes 9(1) and 9(2) Rockets to be launched from aircraft and aligned in groups beneath a wing, the uppermost rocket in each group supported by the aircraft and each succeeding rocket supported by the rocket immediately above, are provided with a pivoted latch which engages a shear member on the supported rocket and extends over its nozzle so that after the propellant is ignited and the thrust of the gases on the latch exceeds a predetermined value the member shears and the rocket is released. Each rocket has a sliding tail 3 supporting the forward end by means of slots 3a in the fins engaging the tail 3 of the rocket immediately above, the uppermost rocket tail being engaged by rods (not shown) secured to the aircraft. The tail 3 guides the initial forward motion of the rocket 2 until picked up by the enlarged nozzle end 2a. The latch 5 pivoted in the nozzle wall and provided with a shoulder 7 to limit downward movement of the latch has a keyhole slot 9 to engage the neck of a shear member 8 screwed into the nozzle wall of the rocket below. Thus until the member 8 of the lowermost rocket shears, any forward thrust transmitted to the rocket above when the lowermost rocket is fired is counterbalanced by a rearward thrust transmitted to the latch 5 of the rocket above. The latch 5 has a stem 12 which is received in a groove between projections 10 of the rocket below and locked therein by a spring-pressed member 14 engaging a notch 15 in the stem 12. On release of the lowermost rocket the latch 5 of the rocket above is forced into its recess in the nozzle 2a and locked therein by the tail unit 3. The uppermost rocket hangs from a latch 5 on a support fixed to the aircraft. To ignite the propellant, each rocket is provided with an electric primer 16 having one terminal connected by the rocket casings to an electric energy source in the aircraft, the return circuit being closed by a manually operated switch (not shown) and a movable switch 22a mounted in the rocket and controlled by the latch 5. Thus when the latch 5 is retracted, rocket III in Fig. 10, the switch element 22a moves into contact with a pin 21 to close the circuit to rocket III, the ' circuits of the primers in the rockets above rocket III being held open by their respective latches.
Patent GB-1520614-A (GB)
Title: Self-feeding water heaters and boilers
IPC: F24H9/12
Filed: 1977-03-02
Abstract: 1520614 Self-feeding water heater or boiler CALOMAX (ENGS) Ltd 2 March 1977 08695/77 Heading F4A In a self-feeding water heater or boiler comprising a heating chamber 1, a steam-heated helix 4 is provided to heat the water in the chamber 1 so as to cause the water to boil and flow over an edge to a discharge outlet 13 and cold water is supplied to the heating chamber 1 from a cold water balancing tank 7 through an equilibrium float valve. The water in the heating chamber may be heated by an electric heating means.
Patent GB-146597-A (GB)
Title: Improvements in or relating to the construction of ships
IPC: B63B1/04
Filed: 1919-04-07
Abstract: 146,597. Harter, G. April 7, 1919. Hulls; plating; decks.-Relates to the construction and form of ships, the plating of which consists of plates bent in one direction only without any twist. All the plates have only a single curvature and are bent in a direction lengthways of the ship perpendicular to any transverse plane at right-angles to the vertical longitudinal centre plane. A transverse section at any point is thus composed of straight lines except for rounded or chamfered chines. The side and bottom skin of the vessel comprises not less than three surfaces on either side of the longitudinal centre plane. The surfaces are such that any lines drawn on the surface transversely are parallel to each other in addition to being straight. The chines connecting the surfaces consist of plates formed to a uniform transverse section throughout their length. Decks are similarly formed of three or more surfaces, straight in transverse section. Figs. 5 and 6 show the half transverse sections of bow and stern respectively, the vessels being generally built with parallel midships portions. A wider deck at the bow and a transom at the stern is formed by providing an additional surface similar to one of the surfaces forming the main body of the hull. The chine may be variously constructed of bent or angularly-shaped pieces inserted between the edges of adjacent surfaces. A complete example of the lines of a ship embodying the features described is given in the drawings accompanying the Specification.
Patent GB-657955-A (GB)
Title: Improvements in or relating to apparatus for measuring or recording the ph values ofsolutions
IPC: G01N27/416
Filed: 1949-03-31
Abstract: 657,955. pH measurement. MORTON, C. March 31, 1949, No. 8795. Addition to 636,212, [Group XL (c)]. [Class 37] [Also in Group XL (c)] An amplifier for measuring or recording pH values of solutions as claimed in the parent Specification in which critical feed-back is provided to secure independence of changes in supply voltage, is modified to compensate for temperature variation of the solution and provide for the use of different electrode combinations. As shown, a cell E consisting of an indicator electrode and a reference electrode of known type is connected to the input of the amplifier, a switch S being provided which in position 1 earths the control grid of the valve V1 for calibrating the instrument. A meter M calibrated in pH units is connected in series with a load resistor r3 and automatic compensation for changes in E.M.F. due to temperature variation of the solution is provided by a network consisting of resistor r4 in series with the parallel connection of resistor r5 and temperature sensitive element r, which is shunted across the load. A network consisting of an adjustable potentiometer R9 shunted by series connected resistors R11, R12, connected in series with the cathode resistor r1, provides for the use of different electrode combinations, a potentiometer R10 being connected in series with cathode resistor r2 for adjusting the zero of the instrument. The method of calibrating the instrument for use over a range of temperatures is described, the network r, r4, r5 being temporarily replaced by an adjustable resistance box and expressions derived for calculating r4 and r5. The procedure for measuring the pH value of a solution is given, the indicator electrode being first immersed in a solution of known pH value and the instrument adjusted to give that reading, the solution then being replaced by the solution whose pH value is required. The valves V1 and V2 should preferably be electrometer valves, or alternatively may be variable-mu R.F. pentodes operated at low heater and anode voltages. Shunts may be connected across the resistor r3 so that the instrument may be used as a multi-range pH meter.
Patent GB-349687-A (GB)
Title: Improvements in or relating to low-frequency amplifiers, or the like
IPC: H03G5/06
Filed: 1930-03-20
Abstract: 349,687. Transformers. ANSTEY, R. W., 6, Victoria Park Road East, Canton, Cardiff. March 20, 1930, No. 8883. [Class 38 (ii).] Reaction effects are produced in a low-frequency valve amplifier by means of a transformer, and the sense and the amount of the reaction is varied by movement of the transformer core. As shown in Fig. 1, the plate circuit coil is wound on a core member AB which is rotatable on a spindle R rela. tive to the fixed core member NS on which the grid coil is wound. The valve is fed through an input transformer T and includes a loud-speaker W in its plate circuit. In a modification shown in Fig. 3, both coils are fixed, and reaction is adjusted by sliding movement of the core C. Reversal of reaction is effected by a switch ZYZ. The core may be a straight rod sliding through coils placed in axial alignment.
Patent GB-1285156-A (GB)
Title: Improvements relating to the sealing of containers
Inventor: ANDERSON RALPH F
IPC: B29C65/00
Filed: 1971-04-07
Abstract: 1285156 Closing containers R F ANDERSON 7 April 1971 8976/71 Heading B8C Covers are applied to containers having rims f, from a continuous cover strip s, by means of apparatus comprising a conveyer 10 having spaced container support frames 12, means 21 for advancing the containers sequentially past a selected location L means for positioning the cover strip with one end adjacent to the location L for advance with the container when attached to the container rim, sealing means 41 operative when the leading rim of a container reaches a position adjacent to the location for attaching the cover strip to the container rim so that the cover strip is advanced with that container, and a cutter 44 operative when the trailing rim of the container advances to a position adjacent to the location L for severing the cover strip S adjacent to the trailing rim f before the attaching means attaches the cover strip to a succeeding container, whereby the advance of the cover strip with the containers is interrupted and the severed end of the cover strip remains adjacent to the location preparatory for attachment to the leading rim of the next succeeding container when it has advanced to a position adjacent to the location L. As shown, a combined sealing and cutting head 41 mounted for rotation above the conveyer adjacent the location L includes a peripheral sealing surface 41a, spaced cutter elements 44, internal heating means 56 and thermostat 57. The head 41 is driven by the conveyer 10 in timed relation thereto through teeth 10e on the conveyer and teeth 41e on the head. The head may be raised out of contact with cover strip by a manually operated cam and follower mechanism 61, 62, 63. During the cutting operation, the advance of the cover strip is momentarily retarded by a brake mechanism 39 associated with a supply roll 36, the brake mechanism 39 being cyclically operated in timed relation with movement of the cutter elements 44 by a switch 40 controlled by a cam 40a on a conveyer shaft 24. In a modification, Figs. 8 and 9 (not shown), the cover strip is provided with indexing marks (M) pitched along the strip at a distance corresponding substantially to that of the length of the containers across their rims, the marks (M) being sensed by a unit (70) for operating the brake mechanism 39. U.S.A. Specifications 3,436,894 and 3,344,974 are referred to.
Patent GB-996487-A (GB)
Title: Polymers capable of being cross-linked and a process for their manufacture
IPC: C08F2/04
Filed: 1962-03-08
Abstract: Polymers or copolymers are prepared by polymerizing or copolymerizing an unsaturated monomer containing the group <FORM:0996487/C3/1> in which R, R1 and R2 each represent hydrogen or a monovalent radical of a saturated aliphatic hydrocarbon containing 1 to 4 carbon atoms, and Z represents the residue of a monobasic or polybasic inorganic or organic acid.  Monomers given in the examples are <FORM:0996487/C3/2> and <FORM:0996487/C3/3> while monomers listed are vinyl esters, vinyl chloride, styrene, acrylonitrile, acrylamide, N-methylolacrylamide vinylidene chloride, ethylene acrylic and methacrylic acids esters, and maleic and fumaric esters. The polymerization may take place in solution, suspension, emulsion or substance in the presence of benzoyl or diacetyl peroxide, t-butyl hydroperoxide, azobisisobutyronitrile, hydrogen peroxide, potassium persulphate and redox systems. Specification 996,486 is referred to.
Patent GB-952740-A (GB)
Title: Improvements in automatically movable tamping apparatus for soil compression or for similar purposes
IPC: E02D3/074
Filed: 1960-03-15
Abstract: 952,740. Tamping machines. LOSENHAUSENWERK DUSSELDORFER MASCHINENBAU A.G. March 15, 1960 [March 19, 1959], No. 9051/60. Heading E1G. [Also in Division F2] In a soil-tamping apparatus, of the kind comprising rotary unbalanced elements, an unbalanced element 8, 8<SP>1</SP> is arranged on each of two parallel shafts 2, 3 driven in opposite directions by gearing 4, 5, 5<SP>1</SP>. In order to produce a component of the unbalanced forces to rotate the apparatus about a vertical axis so permitting of steering of the apparatus, the elements 8, 8<SP>1</SP> are displaceable axially on the shafts 23 from the plane I-I, which contains the centre of gravity of the apparatus. The displacement of the elements is effected by bell cranks 12, 13 operated by a common push-pull rod 16.
Patent GB-1382623-A (GB)
Title: Steering column switch for automotive vehicles
IPC: H01H21/50
Filed: 1972-02-28
Abstract: 1382623 Mechanical switches SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 28 Feb 1972 [27 Feb 1971] 9058/72 Addition to 1362986 Heading HIN The separate locating cam ring 32 in Specification 1,362,986 is omitted and the locating cam is formed by the stationary contacts themselves, with which the spring detent of the contact bridge engages. The stationary contacts form an undulating track and if a gap occurs at a crest (Fig. 3, not shown) the movable contact 28 must bridge diametrically opposite contacts while if a gap between stationary contacts is provided in a trough (Fig. 4, not shown.) the movable contact 28 may bridge the adjacent contacts in addition to, or instead of, diametric bridging. In the last case the two arms of contact bridge 28 need not be electrically connected together.
Patent GB-547776-A (GB)
Title: Improvements in apparatus for filling bottles or containers with liquids or powders by means of suction
IPC: B67C3/26
Filed: 1941-07-18
Abstract: 547,776. Filling bottles &c. ENOCK, A. G. July 18, 1941, No. 9096. [Classes 94 (i) and 125 (ii)] In apparatus for filling bottles or other containers L, Figs. 2 and 3, with liquids or powders by means' of suction, of the type in which the bottles are carried on supports C which are raised by pneumatic or other means to bring the bottles into engagement with the filling nozzles, the bottle support is allowed to move downwards a predetermined distance after filling until the bottom of the suction nozzle H through which the surplus liquid and frothy head are withdrawn coincides with the required liquid level X-X in the bottle, the downward movement then being arrested until the surplus liquid &c. has been drawn off and the suction broken, after which the downward movement of the support is continued. The cycle of operations consists in the admission of air through the port B below the piston A thus lifting the support C until the container L reaches the rubber sealing ring D in the filling head D', Fig. 2. Liquid then flows into the container and while filling is taking place air is admitted below the piston F on the selector rod G causing it to rise to the top of its stroke. After filling; pressure is cut off below the piston A and the piston forced down by the spring J until the boss a engages the top of the rod G, Fig. 3. The seal at D being broken liquid ceases to be drawn into the container and excess liquid and the frothy head are withdrawn through the nozzle H. Air is then cut off below the piston F and admitted through the port B<SP>1</SP> above the piston A so that the support is returned to its lowest position.
Patent GB-795124-A (GB)
Title: Flight-carrying chain for flight conveyors
IPC: B65G19/24
Filed: 1956-03-23
Abstract: 795,124. Endless flight conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. March 23, 1956 [April 9, 1955], No. 9163/56. Class 78 (1). In an endless flight conveyer for conveying material along a trough and having circular flights, the flights 10 are attached to horizontal links 12 of an endless round link chain by means of stirrup members 14 of sheet-metal bent to U-form, each of which is inserted in a slot of corresponding form in the respective flight and secured by welding, the stirrup being connected by bolts 24 with a depending shank 22 of a clamping member 20. The link 12 is clamped between outwardly-turned extremities 18 of the stirrup member and flanges 21 of the clamping member. The flights 10 each have a rim 11 consisting of a rearwardly bent flange which is of increasing width from the side opposite the chain to the side facing the chain, the stirrup member being welded at 15 to this rim.
Patent GB-817919-A (GB)
Title: Improvements in or relating to plastics tubes
IPC: F16L9/12
Filed: 1957-03-20
Abstract: 817,919. Plastic tubes. HAYS MANUFACTURING CO. March 20, 1957 [May 15, 1956], No. 9168/57. Class 99(2). A fabric hose 10 having fibres 11, 12 woven in opposed helical relationship is placed on a mandrel of uniform cross-section (not shown), thermosetting plastics material in a fluid condition is then applied to the fabric which is drawn into close contact with the mandrel by axial tension, the plastics material then being cured and the mandrel removed. Thermosetting plastic is applied to the fabric which is held in a stretched condition by being painted on the outside, by dipping the mandrel and fabric into the plastics material in a fluid condition or by vacuum impregnation. The finished tube 15 may be increased in thickness by applying a second fabric hose 16 over it when still on the mandrel and impregnating with plastics material and curing as before. The mandrel is preferably made of polyethylene, the material known by the Registered Trade Mark of "Teflon" or a similar material which will not adhere to the thermosetting plastics.
Patent GB-380009-A (GB)
Title: Mould for casting chain links in engagement with the precast links
IPC: B22D25/02
Filed: 1932-03-30
Abstract: 380,009. Moulds. MATZOW, P., 13, Neuestrasse, Magdeburg, Germany. March 30, 1932, No. 9187. [Class 83 (i).] In casting a connecting link 5 about preformed links 2 the mould boxes 1 have metal sides 3, Fig. 4, with recesses 4 shaped to fit the links 2 and with cut-out portions 6, 7 which are large enough to leave a layer of sand between the box side and the pattern 5 when moulding. The link 5 is cast in the vertical position by means of a gate 10, Fig. 1. The sides 3 may be detached and replaced by others of different design.