baber/WOPTO huggingface dataset:
Patent GB-620029-A (GB)
Title: Improvements in methods for dry distillation
IPC: C10B49/16
Filed: 1945-01-16
Abstract: 620,029. Rotary retorts for destructive distillation. JOHANSSON, E. A. Jan. 16, 1945, No. 1302. [Class 55 (i)] [Also in Group XIII] Oil or bituminous shales, peat, coal, sawdust or wood chips &c. are distilled by direct contact in motion with heat-carrying metal, ceramic &c., loose bodies such as iron balls, the material being preheated and distilled in separate rotating drums 1, 2 into and out of which the material and the bodies are separately delivered and caused to move transversely to the rotation. Heat is imparted to the bodies from products of the distillation, e.g. by contact in another drum 3 with the hot residues. In the plant shown the heating bodies travel in two separate circuits, one comprising drums 1, 3 and an additional heater 34 supplied with combustion products from a furnace 24 in which the distillation gases are burnt, and the other drum 2 and a heater 22 similarly receiving combustion products. In a modification the bodies pass directly back from drum 2 to drum 1 and thence through drum 3 to heater 22 and drum 2, heater 34 not usually being required. To prevent gas leakages, double sluices 13, 17, 31 are provided in the conduits. Mixing and screening members depending from the drum interior sift the material and feed the bodies into the outlet conduit.
Patent GB-157449-A (GB)
Title: Improvements in garment-presses
IPC: D06F71/34
Filed: 1921-01-10
Abstract: 157,449. American Laundry Machinery Co., (Assignees of AndrÚe, W. E.). June 19, 1916, [Convention date]. Ironin.g-machines with pressing action only. - Garment pressers of the kind in which a pair of steamheated co-operating presser members are operated as by toggle mechanism are provided with a steam conduit located along the front edge of one of the upper presser members 5, Figs. 4 and 5, so as to discharge steam outside of the press cloth 8 and in a direction substantially parallel to the buck face, the steam being discharged just before or after the pressing operation. The device is arranged so that the press cloth may be readily removed or adjusted without disturbing the steam supply connections. The pipe 17, communicating with the presser member 5, terminates in a conduit 15 arranged along the front edge of the presser member so as to discharge steam through a series of openings 21 when the valve 19 is operated by a handle 20, a shield 22 being also provided to direct the flow of steam in a direction substantially parallel with the surface of the press cloth 8. The supply pipe 15 is positioned so that the press cloth may be readily adjusted or replaced by manipulation of the securing pins 10 and clamp 11, the supply pipe being also near enough to the steam-heated presser member to be heated sufficiently to prevent steam condensing therein. In the modified arrangement shown in Fig. 6, the conduit 29 is hinged to the supply pipe and the press cloth is secured in position by flexible members 26 with hooks 27.
Patent GB-1379372-A (GB)
Title: Electroacoustic transducer having an inverted diaphragm
Inventor: FREEMAN R C
IPC: H04R11/00
Filed: 1973-01-10
Abstract: 1379372 Receivers NORTHERN ELECTRIC CO Ltd 10 Jan 1973 [10 Jan 1972] 1422/73 Heading H4J In a telephone receiver, a diaphragm having a balanced armature electro-mechanical drive is mounted so as to divide a casing into two cavities a coupling cavity and a damping cavity, and the free volume the coupling of cavity in which the electro-mechanical drive is positioned is made at least three times the volume of the damping cavity ring. As shown an aluminium casing 1 having sound orifices 2 has ring mounted therein a conical diaphragm 12 so as to form two cavities, the upper of which is totally enclosed and includes as part of its boundary a closure plate 62 of acoustical resistance material e.g. sintered stainless steel, and a backplate 30 of thermoplastics material, this upper cavity providing a damping effect at the natural resonance frequency of the armature diaphragm assembly. The lower cavity contains a balanced armature drive and also has a thin acoustically transparent plastics membrane 60 mounted across the face portion 5 having the sound orifices. The armature shown in more detail in Fig. 3, comprises an integral structure of e.g. permalloy, and includes a central portion 21 connected by torsion bars 22 to arms 24 on which are mounted U-shaped non-magnetic shims 25. e.g. of brass, to provide a clearance between the magnet pieces 72, 74 and the armature. A linkage bar 100 of a copper beryllium alloy is spot-welded to the armature. Permanent magnet 75 is of Alnico V and polepieces 72, 74 are of permalloy. A hole 14 in the diaphragm 12 provides at least a 6 db/octave roll off below about 425 Hz which is approximately reverse to the transmission characteristics of a telephone line. With the above construction the upper (damping) cavity can be made to be about <SP>1</SP>/ 3  of the free volume of the lower (coupling) cavity and this is said to cause a poor coupling to a users' ear to affect the frequency response to a lesser extent than with prior art receivers. Canadian Specification 496,187 is referred to.
Patent GB-125681-A (GB)
Title: Improvements in or relating to Apparatus for Removing Suspended Particles from Gases.
Inventor: BARCLAY SIDNEY FRAZER
IPC: B03C3/78
Filed: 1918-01-25
Abstract: 125,681. Barclay, S. r. Jan. 25, 1918. Gases, treating electrically.-Apparatus for removing suspended particles from gases, for instance air to be used for cooling dynamo-electric machines, comprises a casing forming a straight passage for the gas and containing discharge electrodes producing a field approximately parallel to the gas flow. The charged particles may be collected by oblique wet plates. In the arrangement shown, the inlet end of the casing, which may be of galvanized iron, is fitted with a series of plates B bent as shown so as to prevent access to the electrified screens C<1>, C<2>. These are of smaller area than the cross-section of the casing and are spaced from it and from each other by impregnated wood, between which and the screens a small gap is left. A single screen may be employed with direct high-pressure current, a pair of screens C<1>, C<2> with single-phase alternating current, three or four screens with two-phase current, or three with three-phase current. The velocity of the air, the distances between the screens, and the current frequency are so related that all the particles may become charged; thus, in the case of single-phase current, the air passes from one screen to the other in the time taken for the current to rise from zero to maximum pressure. The screens are made up of metal strips having sharp points at the sides of the screens which face each other. Wet collecting-plates D of galvanized, enamelled, or painted metal or other material, optionally roughened or coated with cotton, are inclined or are shaped as shown so as to promote eddying of the air. Sprayers E direct water on to the front edges of the plates, whence it is driven across the plates by the flow of air. A rotary valve geared to the water pump is connected to the sprayers E so that they receive water successively; or a single set of sprayers may be moved bodily to produce the same effect. Valves control the pressure of the water delivered to the sprayers. To arrest any water carried past the wet plates D, there is provided a second set of plates G. These may also be sprayed with a small quantity of water by means of the same rotary valve. To prevent water from being carried past the second plates, their back edges may be provided with small curved lips. Doors are arranged so that either set of plates is movable bodily. A switch interlocked with the door bolts maintains the primary circuit of the supply transformer open and connects the screens to earth, except when the doors are closed and bolted. In another apparatus, the first-collecting plates D are omitted, so that the first sprayers produce a mist, which collects the dust and is deposited on the outer plates G. When there is only one screen, the collecting- plates are placed near it and are sprayed from the back.
Patent GB-210110-A (GB)
Title: Apparatus for determining dielectric strength
IPC: G01R33/12
Filed: 1922-01-18
Abstract: 210,110. Empson, A. W. Jan. 18, 1922. Current meters; dielectric strength, measuring. -Apparatus for determining dielectric strength, for example of transformer oil, comprises a pair of test electrodes 39, 40 at a standard distance apart connected, in parallel with a variable resistance such as an adjustable spark-gap, to the terminals 3, 4 of an induction coil or other source of unidirectional high potential 2. The spark-gap may comprise balls 17, 18 carried by rods 16, 19 and heads 22, 23 attached to fixed and movable glass or other insulating standards 14, 21. The standard 21 is carried by a block 13 which is movable, for example by a screwed shaft 26 and wheel 27. The length of the gap between the balls 17, 18 is measured by an index 34 moving over a scale, which may be graduated in volts representing the breakdown voltage between the balls 17, 18. The index 34 is moved by a cable 30 passing over fixed pulleys 31, 33 and a pulley 29 carried by the block 13, the other end of the cable being fixed. One or both of the rods 16, 19 may be adjustable in the heads 22, 23 so that the balls 17, 18 may be adjusted so as to be in contact when the index is at zero. One of the test electrodes 39 is screwed and fixed by a locknut 48 to provide for adjustment. In use, the balls 17, 18 are set close enough together for a spark to pass between them. They are then gradually moved apart until the spark passes between the test electrodes ; the reading of the index is then a measure of the breakdown voltage of the oil. The spark electrodes 17, 18 may be needle-shaped or of other form, and mechanism may be employed by which equal scale readings represent equal changes of voltage. The test electrodes 39, 40 may be pointed or of disc or other form, particularly for testing solid dielectrics such as paper, fibre, porcelain, &c. The apparatus is preferably arranged in portable form on a base which also carries a voltmeter, ammeter, and switches in the primary circuit of the induction coil 2. According to the Provisional Specification, a transformer may replace the induction coil.
Patent GB-1379972-A (GB)
Title: Tyre building drum
IPC: B29D30/36
Filed: 1972-01-13
Abstract: 1379972 Tyre building drums UNIROYAL 13 Jan 1972 [18 Jan 1971] 1629/72 Heading B7C A tyre-building and shaping drum comprises end discs 11, 12 mounted respectively on coaxial shafts 13, 14 and supporting an elastic membrane 26. Each end disc 11, 12 has two main parts 15, 23 and 16, 24 respectively secured together by screw 25 and clamping the beaded ends of the membrane. Part 23 a removable flange 30 and part 24 has an integral flange 31 to support portions only of tyre beads 34, 35, the remaining portions being supported by adjacent parts 44, 45 of membrane 26 which are internally supported by surfaces 42, 43 of parts 15, 16. During shaping, discs 11, 12 are moved towards each other and fluid is admitted to space 28 to expand the membrane, the ends of which embrace the beads and clamp them against the flanges 30, 31. A carcass may be built on the drum by applying carcass plies and then bead cores, with flange 30 removed. The flange 30 is secured to a ring 38 having a bayonet joint or like connection with part 23, the ring being centred by guide pins 41.
Patent GB-1164971-A (GB)
Title: Improvements relating to Spark-Ignition Injection-Type Internal Combustion Engines.
IPC: F02B17/00
Filed: 1968-01-11
Abstract: 1,164,971. Fuel injection engines. DAIMLER-BENZ A.G. Jan. 11, 1968 [Jan. 14, 1967], No. 1636/68. Heading F1B. Towards the end of the compression stroke of the piston 2 and shortly before the end of injection, fuel injected obliquely to the cylinder axis 3 enters a piston through 6 which is at the position of the sparking plug 12 in the cylinder head 9 and which is separated from the main combustion chamber 4 by a ridge 7. Air entering the cylinder 1 is caused to perform a rotating movement in the direction of the arrow 8 by the admission port and valve and the injection nozzle 10 and sparking plug 12 are disposed above the trough 6 at points above the upstream end portion and the downstream end portion respectively of the trough.
Patent GB-1037032-A (GB)
Title: Improvements in or relating to fluid control valves
Inventor: MASHEDER HENRY
IPC: F16K1/14
Filed: 1962-01-17
Abstract: 1,037,032. Valves. LINCOLN VALVES Ltd. April 17, 1963 [Jan. 18, 1962], No. 1739/62. Heading F2V. Flow through a conical valve-seat 2 in a pipe 34 is controlled by a ball 10 or cylindrical roller in an open socket in a piston 14 actuated by an hydraulic piston and cylinder device 20. The piston 14 moves in a cylinder 22 the axis of which is inclined to the pipe 34 at the same angle as that of the conical seat 2, e.g. 60 degrees; the seat is tangential to the ball 10. The latter is loaded by a spring-urged, plunger 28 and rolls over the wall of the cylinder 22 when the piston is moved axially. The ball may be rotatable about a pin on the end of a forked arm, and a dash-pot may be used to provide shock-free closing of the valve.  The valve may be used as a non-return valve or a safety valve in which the ball is urged up the cylinder against gravity or a spring.
Patent GB-1260723-A (GB)
Title: Gonapentaene derivatives
Inventor: BRAIN EDWARD GEORGE
IPC: C07J75/00
Filed: 1969-01-11
Abstract: 1,260,723. Estrapentaenes. BEECHAM GROUP Ltd. 26 March, 1970 [11 Jan., 1969], No. 1762/69. Heading C2U. Novel racemic steroids of formula (wherein R 1  is H or C 1-6  alkyl; X is oxo, (H, OH) or (H, OAcyl); and R 3  is H or acyl) are prepared by reduction of one or both oxo groups of the corresponding racemic 11,17-diones followed, when required, by acylation of the thus-formed hydroxy group(s). Reduction with NaBH 4 /aq. alcohol reduces the 17-oxo group only. Reduction with LiAlH 4 /THF reduces both oxo groups.
Patent GB-365779-A (GB)
Title: Improvements in or relating to refractory materials
IPC: C04B35/03
Filed: 1931-01-19
Abstract: Refractory bricks and other articles are made by burning a mixture of sintered magnesite, a binder, e.g. concentrated waste sulphite liquor, and a small proportion, e.g. 1-3 per cent, of chrome iron ore.  The chrome iron ore is added for the purpose of stabilizing impurities, e.g. silicates of lime, in the sintered magnesite.
Patent GB-413364-A (GB)
Title: Improvements in dismountable vacuum seals
IPC: F16J15/02
Filed: 1933-01-19
Abstract: 413,364. Discharge apparatus. BANCROFT, F. E., 19, Delaine Road, Withing- ton, SMETHURST, H., 147, Victoria Road, Fallowfield, both in Manchester, BURROWS, G., Lynton, Fownhope Avenue, Sale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Jan. 19, 1933, No. 1815. [Class 39 (i).] In a vacuum seal, suitable for vacuum furnaces, large thermionic valves, vacuum condensers, vacuum vapour traps, vacuum circuit breakers, &c., which can be rapidly dismantled and remade, a ridge or flange having a plane end face on one part such as the cylinder 1 enters a groove or channel 6 which is slightly wider in the other part, e.g. the cover 2, and a thin gasket of solid, compressible, non-absorbent material such as lead 7 or a composition of granulated cork leather, &c., is placed between them. The seal is completed by a low-vapour pressure oil such as that known under the Registered Trade Mark "Apiezon" which floods the atmospheric side of the gasket and is housed in a separate reservoir channel. The groove 6 is undercut at 8, the reservoir channel 10 is formed by a cylindrical flange 9 secured to a flange 5 to which the cover is bolted. By means of pins 12 and inclines on the flange 9 a displacer ring 11 is raised or removed before breaking the joint to prevent oil running into the container. The ring 11 may be replaced by a downwardly-extending flange around the cover 2. The cylinder has an interior flange 14 with an oil-trap groove 15 which flange protects the vacuum seal against electron or other bombardment and the effects of radiant heat. The cover 2 is cooled by a jacket 16. In a modification, applicable to a bottom cover, a flange on the cylinder enters a recess in the cover. The oil channel is connected to a pipe with a cup and a drain cock which enables it to be filled and emptied. A hole in the door is provided with a screw plug similarly packed. In a further construction, two similar channels engaged by flanges of different diameters with a liquid seal between, are provided. Cooling fluid is supplied to a device such as an X-ray tube, by concentric tubes carried by the cover. Specification 346,293, [Group XXXVIII], is referred to.
Patent GB-279685-A (GB)
Title: Improvements in high pressure gas burners
IPC: F23D14/08
Filed: 1927-01-21
Abstract: 279,685. Wolff, F., and Selas Akt.-Ges. Jan. 21, 1927. Atmospheric gas burners.-In a burner in which gas is supplied through an inlet 2 to a ring of apertures 4 in a plate 3 and passes with air, drawn in through a tube 12 and an annular opening 5, into an annular passage, which is formed between a control body 10 and a sleeve 11 in the mixing chamber and which increases in crosssectional area from the inlet to the outlet end, the body 10 is adjusted relatively to the inner end of the tube 12, as by means of a screwthreaded rod 13, for regulating the inner air supply. The sleeve 11 may be connected by ribs with the body 10 for simultaneous regulation of the outer air supply. The inner end of the tube 12 may be provided with a bush 14.
Patent GB-563301-A (GB)
Title: Improvements in and relating to electrode holders for electric arc welding
IPC: B23K9/28
Filed: 1943-02-04
Abstract: 563,301. Welding electrode holders. PHILIPS LAMPS, Ltd., and VANNECK, E. G. BOURNE-. Feb. 4, 1943, No. 1882. [Class 39 (iii)] A welding electrode is clamped between two jaws 1, 4, the jaw 4 being slidably mounted on the jaw 1 by means of a collar 6. The inner end 8 of the jaw 4 is pressed outwards by a spring 10 bearing against an insulating block 11 supported by a bracket 12 carried by the shank 2 of jaw 1. The assembly is secured in an insulating handle 17 by a screw 16, and a guard plate 26 is provided, secured to flanges 25 on a forked lever 18 engaging the part 8. To hold the welding rod in any one of a predetermined number of positions, the surface of the jaw 1 is provided with several angularly spaced channels 31, 32, 33, 34, Fig. 3, and the jaw 4 is roughened by providing two sets of parallel grooves 35, 36, Fig. 4, which are small compared with the diameter of the rod.
Patent GB-488586-A (GB)
Title: Improvements relating to tobacco feeding mechanism for cigarette making machines
IPC: A24C5/39
Filed: 1937-01-22
Abstract: 488,586. Cigarette-making machines. SHACKLETON, J., and INDUSTRIAL MACHINERY CO., Ltd. Jan. 22, 1937, No. 1973. [Class 130] In tobacco-feeding mechanism for continuousrod machines, in which a measured layer or " carpet " of tobacco is formed on a rotary carded drum 5 or equivalent feeding surface receiving tobacco from a hopper or supply, a number of carpet controlling means are provided in series, each comprising refusing means such as drums 7, 17 and tamping or compacting means 8, 18, so that the tobacco fed past the first refusing means may be subject to a subsequent removing action. As shown, the tamping means 8 comprises weights independently mounted on curved arms 9 supported on rollers 10 to oscillate about the axis of the drum 7. The arms 9 are simultaneously lifted and dropped by levers 11, each coupled by a chain 12 to an arm 9, the levers being mounted on a rock-shaft 13 coupled by a rod 14 and arm 15 to a crank disc 16. The second tamper 18 is a single bar carried by arms 19 pivoted about the axis of the drum 17, the bar 18 being connected by chains 20 to extensions 11a of the end levers 11. The bar 18 may be replaced by a series of short bars each carried by an independently pivoted arm. The tampers 8, 18 may be interconnected so as to balance one another, and oscillating rakes may be provided to spread any roll of tobacco that may form between the drums 7, 17. Tobacco, short tobacco or cut stems may be fed on to the carpet or into the space between the drums 7, 17.
Patent GB-290946-A (GB)
Title: Looper-thread guides
IPC: D05B51/00
Filed: 1928-01-21
Abstract: 290,946. Fairweather, W., (Singer Manufacturing Co.). Jan. 21, 1928. Multiple needle machines; chain stitching. - The under threads of sewing machines, particularly of the multiple two-thread chain stitch type, are prevented from becoming tangled by a multiple troughshaped guide 6 sunk into the bed 2. The guide has a thread-guiding plate 9, 10, at each end and has recesses 15, corresponding to recesses 14 in the bed, for the fingers 11 which retain the threads in the guide.
Patent GB-691816-A (GB)
Title: Improvements in continuous-flow liquid heaters
Inventor: KLEMP SIEGFRIED
IPC: F24H1/14
Filed: 1951-01-27
Abstract: 691,816. Water and like heaters. VAILLANT, H. Jan. 27, 1951, No. 2131/51. Class 64 (i) A continuous-flow water or like liquid heater, of the kind in which the liquid tubes traverse a horizontal laminar body forming the top closure of the heating chamber, has groups of flow pipes arranged in parallel between the inlet and outlet and passing round the outside of the chamber after traversing the laminar body. As shown in Fig. 1, the gas-fired heating chamber forms a shallow gas chimney 1 the top of which is of grating form comprising laminar copper plates 2 through which pass in a horizontal plane the U-bends 6b, 7b, 8b of the liquid pipes arranged in the branches between the inlet junction 5 and a similar outlet junction (not shown) on the remote side of the heater. The branches 6, 8 after passing through the laminae lead to the outlet by pipes 6c, 8c which pass round the sides of the heater, and the pipe 7 after leaving the laminae is branched to provide further outlet pipes 7c. This arrangement of return pipes prevents the temperature of the wall of the heater falling below the dew point of the heating gas. The header 9 connects the branched inlet pipes to the U-bends and outlet pipes 6c, 8c and is constructed in strip form as shown in Fig. 1a. The header has holes closed by screws, 12 for cleaning purposes and for access to exchangeable venturi nozzles 14 for adjusting the flow through the branched pipes. Fig. 2 shows a modified header formed of a single pipe 15 pressed inwardly at parts 16 to form separate chambers to receive the branched pipes.
Patent GB-657554-A (GB)
Title: Receiver for pulse modulated carrier signals
IPC: H04Q1/446
Filed: 1948-01-23
Abstract: 657,554. Voice-frequency signalling. STANDARD TELEPHONES & CABLES, Ltd. Jan. 23, 1948, No. 2139. Convention date, Feb. 21, 1947. [Class 40 (iv)] [Also in Group XL (c)] In a receiving circuit for carrier modulated pulses, a valve feeds a relay and a circuit tuned to the carrier frequency, which is coupled to two circuits giving outputs having a phase difference of 90 degrees, these outputs being rectified, combined to remove the second harmonic of the carrier, and fed back to the valve grid to operate the relay. As shown, dialling pulses 1, modulated on an audio-frequency carrier, are applied from terminals 2 to the grid of a valve 4, whose anode circuit includes relay 5 and a tuned circuit 9, 10. The secondary coils 12, 13 coupled thereto are connected through circuits 14, 15 and 16, 17 which respectively advance and retard the carrier phase by 45 degrees to full-wave rectifier circuits 21, 22, the combined outputs of which are smoothed by condenser 30. The resultant positive D.C. pulses 32 are fed over conductor 31 to the grid of valve 4 to operate relay 5.