baber/WOPTO huggingface dataset:
Patent GB-752217-A (GB)
Title: Improvements in and relating to buffers
IPC: F16F1/54
Filed: 1954-01-15
Abstract: 752,217. Rubber springs. NEIDHART, H. J. Jan. 15, 1954 [Jan. 16, 1953; Nov. 18, 1953], No. 1294/54. Class 108 (3). A buffer comprises at least two conical coaxially-arranged elements 1, 2 (Fig. 4) between which are disposed elastic rings 3, at least two of the rings having characteristics which differ from one another. The characteristics may be as follows: diameter, cross-sectional shape, magnitude of pre-stress of the ring, composition of material of the ring. In Fig. 4, a piston 6 limits the relative outward movement of the elements 1, 2, and may be of rubber, wood, synthetic material, fabric, or metal. The piston 6 may alternatively be of conical form with a rubber ring disposed between itself and the element 1. In a modification (Fig. 5, not shown), the inner element 1 is formed in three axially-disposed stepped sections, one in respect of each ring 3. The outer element 2 is correspondingly stepped, and the diameters of the rings correspond accordingly. In Fig. 3, three conical elements 1, 2, 2<SP>1</SP> operate in series. The rings 3 are in two series 3a, 3b, and may be prestressed torsionally by providing an annular ridge or an annular groove in the surface of the elements 1, 2 (Figs. 8, 9, not shown). Alternatively the ring may be pre-stressed torsionally by being rolled completely inside out. When the spring is subjected to load, the torsional pre-stress may be arranged to add to, or subtract from, the compressive stress as desired. The rings 3a and 3b may be tuned with respect to each other as regards their potential energy. The rings may be a loose fit between the elements 1, 2, under no-load conditions. The respective conical angles of the elements 1, 2 may be different, and their surfaces may be roughened, grooved or knurled, or may be formed of a surface having a high coefficient of friction. The rings 3 may be moulded or otherwise constructed in the form of unitary members. Alternatively they may be composed of separate elastic pieces arranged in a circle. They may be made from a single rod of rubber bent into a circle. Specification 691,303 is referred to.
Patent GB-1382392-A (GB)
Title: Removable diagrid for supporting the fuel assemblies of a nuclear reactor
IPC: G21C1/03
Filed: 1973-01-10
Abstract: 1382392 Fuel elements COMMISSARIAT A L'ENERGIE ATOMIQUE and SOC CREUSOT LOIRE 10 Jan 1973 [20 Jan 1972] 1399/73 Heading G6C The fuel assemblies 19 of a fast, sodiumcooled reactor are supported on a diagrid 4 composed of two horizontal support plates 11, 12 joined at their periphery to an annular box element 13, the inner wall of which is pierced by orifices 15 through which the coolant sodium penetrates and so passes through the diagrid before contacting the fuel assemblies. The single-unit assembly formed by the support plates 11, 12 and the annular box element 13 is supported by a flat bearing surface 16 on an annular flange 17 at the bottom of the reactor primary tank 3. The two support plates 11, 12 are braced with respect to each other by a series of hollow columns 18 into each of which the bottom end-fitting 20 of a fuel assembly 19 is inserted. Elongated slots 21 in the columns 18 are located opposite holes or slots 22 in the end-fittings 20 to permit passage of the coolant. Coolant is conveyed from heat exchangers housed within the outer containment vessel (Fig. 1, not shown) by ducts 8 to a torus-shaped manifold 23. A series of vertical ducts 25 open at one end into the manifold 23 and at the other end into apertures 26 formed in the bottom wall of the annular box element 13, each being welded at 28 to a collar 27 integral with the bottom wall of the box element 13. The manifold 23 is supported by means of shoulders 29 on the ducts 25 which co-operate with an anchoring ring 30. The bottom support plate 12 is rigidly fixed to a floor-plate structure 32 by means of vertical spacers 34. Openings 33a and 36 in the structure 32 enable coolant to fill the interior of the structure and to contact the bottom support plate 12. The resultant pressure on the diagrid is therefore of a low order. Ready disassembly of the diagrid is possible by first removing the fuel assemblies 19, followed by destruction of the welds 28 and removal of the single-unit assembly formed by the support plates 11, 12 and the annular box element 13. To this end, the top wall of the latter is provided with access openings 37 normally closed by seal plugs 38. Neutron shield elements formed by steel rods 39 fitted over positioning end-pins 40 form a lateral holding structure around the reactor core.
Patent GB-327997-A (GB)
Title: Improvements in or relating to the recovery of tin from scrap tin plate and like tin-bearing materials
IPC: C22B25/06
Filed: 1929-01-15
Abstract: 327,997. Wade, H., (Ballantine, W. B., and Gilbert, M. G.). Jan. 15, 1929. Drawings to Specification. Precipitating.-In a process for the recovery of tin from tin plate scrap and the like tinbearing materials, for example, solder or white metal, the solution of stannate obtained by treating the scrap with a solution of lead acetate in an alkali solution, preferably caustic, may be treated with granulated zinc to precipitate tin.
Patent GB-1110621-A (GB)
Title: Improvements in safety razors
IPC: B26B21/18
Filed: 1966-01-12
Abstract: 1,110,621. Razors. H. B. ENGINEER. 11 Jan., 1967 [12 Jan., 1966], No. 1505/66. Heading B4B. A safety razor is provided with means to space apart the cap and guard members whereby a razor blade, when operatively located between the members, is maintained in a flexed condition solely by resilient engagement thereof with the cap and guard members. In the form shown in Figs. 1 and 2, the cap 1 is provided with a pair of slots 7 each comprising an insert 8 which has an enlarged portion 9, the portions 9 engaging in slots in a razor blade 6. The inserts 8 are of hard rubber or of nylon or other synthetic plastics material and may be replaced to vary the curvature of the blade. The guard 2 is formed on its upper surface with a pair of longitudinal ribs 11 defining a channel 12 between them. One or both edges of the cap and guard may be notched to form teeth. The cap has a screwed boss 4 engaging a tapped bore 5 in the handle, the extent to which the boss can be screwed into the bore being limited by a grub screw 14 engaging a resilient member 15. Alternatively, the inserts may be provided in the guard and be secured in the channel 12. The inserts may be integral with the cap or guard and made of a material which, when compressed, accommodates adjustment of the cutting angle. The cap and guard may form part of a kit for converting a conventional safety razor by replacing the cap or guard thereof by the corresponding member described above, the kit also including stop means to limit the amount by which the handle and cap. are screwed together. In a modification, Fig. 4, the invention is applied to injector razors and in this case, the boss 4 and the insert portions 9 are of equal width thereby enabling a blade 6a having a slot open at one end 6b to be injected longitudinally between the cap and guard. The blades are formed integrally from a strip of metal, each blade, after insertion, being detached from the next blade by snapping its necked trailing edge against the edge 1a of the cap. The invention is also applicable to razors employing single edged blades.
Patent GB-562493-A (GB)
Title: Improvements in or relating to cooking ranges
IPC: F24C15/32
Filed: 1943-01-29
Abstract: 562,493. Cooking stoves. DAVIES, E. S., and WELLS, F. G. Jan. 29, 1943, No. 1550. [Class 126] A gas cooking range comprises a cooking oven 1 fitted with air heaters 4, 5 as described in Specification 562,494 and arranged between two boilers 2, 3 which may be of different capacities, the waste combustion gases from the combustion chambers 6, 7 of the air heaters 4, 5 being directed by deflectors 9 through passages 10 to a common flue 11 running beneath the oven to the boilers. Dampers 12, 13 in the flue 11 allow the gas from the heater 4 to be directed to the boiler 2 and the gases from the heater 5 to the boiler 3 or the gases from both heaters to be directed to either boiler. Additional heat is supplied by thermostatically controlled burners 15 to the boilers which may be interchangeable. Some of the waste gases may be allowed to pass through holes in the deflectors 9 into flues heating cupboards 16, 17 in which a gas grill may be arranged, and boiling rings may be provided in a recess 18 above the oven.
Patent GB-678106-A (GB)
Title: Process for dyeing polyamide textile materials
Inventor: HADFIELD HARRY ROSE
IPC: D06P3/24
Filed: 1950-01-20
Abstract: Nylon textile materials are dyed with a copperable dyestuff and after-treated with an acidic solution containing a cuprous salt and an alkali metal halide.  Examples are given in which nylon is dyed with a chrome mordant dye and after-treated with a solution containing cupric sulphate, sodium chloride, formic acid and sodium sulphite.
Patent GB-418284-A (GB)
Title: Method of precipitating zirconium and/or hafnium on a core consisting of a highly refractory material
IPC: C23C16/00
Filed: 1933-01-17
Abstract: A core of highly refractory material is heated in an atmosphere consisting of a reducing gas and a volatile compound or compounds, e.g. the chlorides or bromides, of zirconium or hafnium or a mixture of compounds of zirconium and hafnium.  A coating of metal compound is obtained on the core, which is then reduced to metal by heating for some time in a suitable atmosphere.  The material of the core is preferably zirconium, hafnium, alloys or compounds of these metals, carbon, or a material consisting partly of carbon.  A carbon thread may be metallized by suspending it between lead-in wires in a vessel into which solid zirconium chloride is introduced.  The thread is then heated electrically to 1800 DEG  C. and hydrogen is introduced into the vessel, which is placed in a furnace to heat it to above 200 DEG  C. to vaporize the zirconium chloride.  The chloride decomposes on the heated thread giving a deposit of zirconium hydride with or without some metallic zirconium.  The coated thread is then heated in a vacuum for several hours at 1900 DEG  C. to convert the hydride into metal. This heating may alternatively be carried out in an atmosphere of a rare gas or in any inert atmosphere not containing a large amount of hydrogen.  Ductile bodies coated with zirconium or hafnium which can be worked by rolling or drawing to form rods, wires or bands can be made by the process and the coated wires may be used in electric discharge tubes.
Patent GB-1092214-A (GB)
Title: Improvements in parametric amplifiers incorporating varactor diodes
Inventor: DODSON JOHN ARTHUR
IPC: H03B19/18
Filed: 1965-01-13
Abstract: 1,092,214. Parametric amplifiers. G. &. E. BRADLEY Ltd. Jan. 6, 1966 [Jan. 13. 1965]. No. 1563/65. Heading H3B. A parametric amplifier comprises an input waveguide 10 for signals of frequency f 8  which is coupled to a varactor diode 13 by a bar and post transition 11 and a coaxial line 12, the diode being located in a waveguide 14 which supports the pumping frequency fp and has a cut-off frequency less than fp but greater than fp-fs, the cut-off frequency in the region of the diode being reduced to a value below fp-fs to allow the waveguide 14 to support an idler frequency fi = f p -f s  in this region. The idler frequency fi constitutes the output signal which passes to waveguide 10 and is separated from the input by a circulator (not shown). The diode is surrounded by a slice of P.T.F.E. 15 of the same thickness, the length of the slice being approximately one wavelength of the idler frequency. A matching stud supports the remote end of the diode. The waveguide 14 is terminated by an adjustable plunger which serves to concentrate pump power at the diode, and an idler choke 19 and a pump choke 20 are incorporated in the transmission line. Alternatives to the P.T.F.E. slice 15 for reducing the cut-off frequency are a ridge in the waveguide or the use of a waveguide portion of larger dimensions. Frequency examples are fp = 27.0 Gc/s., fs = 7.1 Gc/s. and fi= 19.9 Gc/s.
Patent GB-450546-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone or like systems
IPC: H04Q3/00
Filed: 1935-01-18
Abstract: 450,546. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd., and BROFOS, E. A., 63, Aldwych, London. Jan. 18, 1935, No. 1731. [Class 40 (iv)] One or more carrier or phantom channels are used as overflow channels in inter-exchange working. More than one carrier channel may be superposed on one or more of a group of junctions, and the phantomming may be extended by using ghost &c. circuits. As shown, a group of five junctions form the earlier choices in the banks of selector OS and the later choices comprise carrier equipments OCE for superposing carriers on the junctions. The carrier equipments may be made effective when the selector passes contact C, but they be made effective as taken into use. At the incoming end, a selector S1 or S3 is taken into use according to the nature of the incoming channel, filters for directing the audio and carrier signals being provided.
Patent GB-113128-A (GB)
Title: An Improved Conical Wrench, especially applicable for use as a Fuse Wrench for Explosive Shells.
Inventor: GAUNT BERNARD AUSTIN
IPC: F42B33/06
Filed: 1917-02-03
Abstract: 113,128. Gaunt, B. A. Feb. 3, 1917. Pin and like wrenches; retaining in engagement. -Conical pin wrenches for screwing and unscrewing fuses or other purposes, are provided with (1) the engaging pin on a block sliding in an oblique groove in the conical face or socket of'the wrench, or (2) with an inclined slot or slots which engage pins also engaging holes in the fuse, or engage projections on the fuse. As shown in Figs. 1, 3 and 6 (first Provisional Specification) the. pin i which engages the hole in the nose of the fuse is on a block f arranged to slide in an oblique groove d in the face of the socket b of the wrench. The block may be attached to the wrench by a screw k and chain j. On turning the wrench under pressure the block f tends to slide up the groove and consequently to force the conical socket down into engagement with the fuse. A wrench with a groove inclined in the opposite direction may be provided for unscrewing the fuses. As shown in Figs. 1 and 3 (second Provisional Specification) one or more inclined slots d are formed in the conical socket a of the wrench, for engaging a pin or pins e inserted through them into holes in the conical part c of the fuse. Preferably two diametrically opposite pairs of slots d are provided for use with two pins e for turning the fuse in either direction.
Patent GB-851852-A (GB)
Title: Improvements in or relating to the heating of furnaces
Inventor: WILLIAMS NORMAN HENRY
IPC: C10B21/10
Filed: 1956-01-18
Abstract: 851,852. Combustion apparatus. HUMPHREYS & GLASGOW Ltd. Jan. 15, 1957 [Jan. 18, 1956], No. 1773/56. Class 51 (1). Hot combustible gases from an oilfired chamber 10 are diluted with waste gases in a mixing chamber 10 prior to combustion in the flues of a furnace 12 at positions where hot air is supplied through pipes 26, 27. The waste gases are induced from the furnace through a pipe 15 by an injector 14, the motive fluid of which is the compressed waste gases from the outlet 16 of a waste-heat boiler 17. Combustion air and steam from a blower 21 and the boiler 17, respectively, are heated in a heat exchanger 20 whilst passing through respective pipes 24, 25 to the furnace and the chamber 10. In a modified apparatus, hot waste gases are taken from an outlet 15, Fig. 2, through a pipe 32 and cool waste gases are taken through a pipe 33 from the outlet 16 and mixed before passing to a fan 30 which replaces the injector 14. In a further modification, cool waste gases from the outlet 16, Fig. 3, are compressed in a blower 35 for use in an injector 36 to inject hot gases drawn from outlet 15 through pipe 32 into a pipe 25 leading to the mixing chamber 13. In a simplified form of this modification only compressed cool waste gases from the outlet 16 are supplied to the mixing chamber. In a plant for heating continuous vertical coal -carbonisation retorts 40, Fig. 5, the waste gases from the retort heating flues are successively passed through a heat exchanger 41 and a waste-heat boiler 42. In the exchanger, air from a blower 44 is heated prior to passing to the combustion chamber 45 and through pipes 46, 47 to the heating flues. Gases leaving the boiler 42 are drawn by a fan 48 and passed through a combustion chamber 50 to a mixing chamber 51 this gas supply being governed by a valve 54 thermostatically controlled from a position 55 at the flues inlet. Free oxygen is removed from the waste gas stream in the chamber 50 by coal gas combustion. The ducting 57 carrying the oxygen-free gases to the chamber 51 has an inlet pipe 58 for steam from the boiler 42, the steam flow being thermostatically-controlled from a position 60 in the ducting. In yet a further embodiment, a plurality of combustion chambers 45 are provided all served from at least one boiler 42 with each chamber having a thermostatically-controlled supply of waste gases for dilution of the heating gases it produces, each such supply passing through a combustion chamber 50 for removal of free oxygen and having thermostatically-controlled steam addition means. Specification 851,597 is referred to.
Patent GB-1476535-A (GB)
Title: Optical component for a dual-beam photometer
IPC: G01J1/36
Filed: 1975-01-15
Abstract: 1476535 Photometer lamps HARTMANN & BRAUN AG 15 Jan 1975 [16 Jan 1974] 1800/75 Heading F4R A duel beam photometer comprises a block 1 containing two channels 11, 12 of equal length and arranged at an angle to each other, a light source 13 located at the convergence of the channels, and a rotary shutter 4 mounted in front of the exit ends of the channels. The channels terminate in windows 14, 15 at each side of a bore 2 housing the shaft 3 for the shutter, each window facing a window (19, 20) in sample cuvettes (17, 18) arranged side by side in a unit (16) coaxial with the block 1. The shutter 4 is driven by a motor 6 through an elastic coupling 26, and a device 23 is provided to insert a balancing shutter 24 into the path of one of the beams.
Patent GB-954105-A (GB)
Title: Improvements in doffer combs for textile carding machines
Inventor: WALKER DANIEL NORMAN
IPC: D01G15/48
Filed: 1962-01-18
Abstract: 954,105. Carding engines. T. M. M. (RESEARCH) Ltd. March 11,1963 [Jan. 18, 1962; March 1,1962], Nos. 1833/62 and 8057/62. Heading D1N. A doffing comb for a carding machine has balancing means 16 mounted on arms 11 that secure the comb blade 10 to the shaft 13, the axis of the shaft coinciding with the axis of oscillation of the comb structure. Bearings 17 for the shaft 13 may be mounted at the ends of the shaft and intermediately on support bars 20 that are adjustable. According to the second Provisional Specification the comb shaft may be carried by a support mounted in a resilient back, such as of hard rubber or similar resilient material. It is also stated that the comb shaft may be of conventional type having eccentric journal bearings with the unbalance of the shaft serving to balance the comb.
Patent GB-147406-A (GB)
Title: Improvements in anti-friction bearings for shafts
IPC: F16C31/00
Filed: 1920-01-20
Abstract: 147,406. Post, C. G. von. Jan. 20, 1920. Rolling-friction bearings.-A bearing for shafts having an oscillating rotary motion comprises a member 2 mounted by balls 4 on a fixed member 6, the member 2 being adapted to move in a direction perpendicular to the shaft. Rollers 9, Fig. 1, on pivots 8 in supports fixed to the member 6 guide the shaft laterally, and an oblique shoulder 10 in contact with the member 2 guides the shaft axially. The balls run in grooves formed in the members 2, 6, with stops 11. During an oscillatory movement of the shaft, the plate 2 moves laterally, and only rolling friction can arise. In a modification, Fig. 5, the shaft is guided laterally and axially by a pivot 15 capable of vertical adjustment, and the balls run in guides formed by parallel rods 12.
Patent GB-1070491-A (GB)
Title: Mechanism for imparting a continuous positive movement to a weft inserter of a shuttleless loom
IPC: D03D47/00
Filed: 1965-01-15
Abstract: In a loom in which a weft inserter tape circulates in a closed path through the shed and back outside the shed, the tape is propelled by rotating discs penetrating the lower warp sheet; the discs have notches in their peripheries meshing with oblique teeth on the underside of the tape.  Before and after traversing the shed, the tape is propelled by rolls having multistart helical grooves, of which the notches in the discs form a continuation.
Patent GB-275083-A (GB)
Title: Improvements in or relating to newspaper folding devices
IPC: B65H45/16
Filed: 1927-01-21
Abstract: 275,083. Marks, E. C. R., (Wood Newspaper Machinery Corporation). Jan. 21, 1927. Folding paper.-In a newspaper-folding machine, in order to lessen the strain on the web of paper W, Fig. 1, it is fed from the former 10 of the longitudinal folder to the rotary cutting and folding cylinders 18, 19 by two or more pairs of rollers 12, 13, so that less pressure is required than if one pair only were employed. One roller of each pair is fixed and the other roller is carried by a pivoted arm 14, Fig. 3, acted upon by a screw-adjusted spring 15 to press the rollers together. The rollers, which grip the web at its margins, are connected' together by gearing and driven from a common shaft, at a speed higher than the speed of the paper so as to keep the web taut.
Patent GB-935348-A (GB)
Title: Improvements in or relating to code-bar relay selector switches
IPC: H01H67/32
Filed: 1960-05-26
Abstract: 935,348. Electric selectors. TELEFONAKTIEBOLAGET L. M. ERICSSON. May 26, 1960 [June 2, 1959], No. 18677/60. Class 40 (4). The operating magnet of a code-bar relay selector controls an operating lever which combines with a selected interponent to form a toggle mechanism which when an operating magnet is released is sprung to actuate a contact set. The selector is of the kind described in Specification 832,865 and the provision of a toggle mechanism gives a high velocity ratio which permits the use of small operating magnets and a consequent reduction in current consumption. As shown in Fig. 1, the operating magnet 1 has an armature 3 linked to an operating lever 6 which in the unselected condition of an interponent 7 and with magnet 1 unenergized rests without operatively engaging the interponent. Should the code bars 12 present a slot to accept a feeler arm 15 the interponent is spring-biased to engage the top edge of operating lever 6, as shown in Fig. 2, when the magnet 1 is energized. When the magnet is de-energized the spring 14 withdraws the armature 3, restores the operating lever 6 and raises the interponent in toggle fashion as permitted by slot 11 thereby operating the spring-set post 13 as shown in Fig. 4. If no slot is offered by the code bars the interponent cannot engage the lever when the magnet is energized and restores to the position shown in Fig. 1 when the magnet de-energizes. With the code-bars set to select a different interponent the operating lever 6 pivots further than the interponent when the magnet is energized, thereby releasing one spring-set by breaking the toggle connection before operating another.
Patent GB-1452397-A (GB)
Title: Aerial photography device
IPC: G01C11/00
Filed: 1974-01-15
Abstract: 1452397 Aerial photography CENTRE NATIONAL D'ETUDES SPATIALES 15 Jan  1974 [17 Jan 1973] 01879/74 Heading G2A An aerial photography device comprises one or more cameras 6 mounted in a nascelle 1, 2, 3 adapted to be attached to a balloon, and means for orienting the device about a vertical axis, photographs being taken only when the device reaches a predetermined angular orientation. When this is reached, as determined by a magnetometer (14), Fig. 2 (not shown), the photographic exposure is triggered, after a delay for stabilisation of the device by a motor-driven inertia flywheel 10. A number of different cameras may be provided, each responsive to different wavelength bands.