baber/WOPTO huggingface dataset:
Patent GB-1425123-A (GB)
Title: Heat exchangers
IPC: F28F3/12
Filed: 1973-04-12
Abstract: 1425123 Plate heat exchangers RUSTON GAS TURBINES Ltd 5 April 1974 [12 April 1973] 17590/73 Heading F4S A heat exchanger unit comprises a pair of spaced parallel plates 1, 2 with at least one fin 3 extending from one plate towards and cooperating with a corresponding fin 3 on the other plate, the free edges of these co-operating fins being formed in at least two sections 5 shaped to provide surfaces whose planes diverge towards the opposite plate, and the said fin surfaces on assembly of the plates being wedged into overlapping engagement. The fins may be at right angles to (as shown) or inclined with respect to the plane of the plates 1 or 2. The fins shown each have a foot portion 4 attached to the associated plate 1 or 2, and the "free" edge of the foot may be upturned to provide additional fin surface. The fins 3 may be formed with holes or with ribs (not shown) to improve heat transfer. In use, a plurality of the plate units are assembled in spaced relation with hot turbine exhaust gas flowing between the plates of each unit and with compressed air flowing between the units. The air pressure serves to maintain the fin sections 5 of the individual units in contact.
Patent GB-791078-A (GB)
Title: Improvements in regulating valves
Inventor: GIBSON JOHN HENRY
IPC: F16K39/02
Filed: 1954-06-16
Abstract: 791,078. Piston packing. DEWRANCE & CO., Ltd. June 15, 1955 [June 16, 1954], No. 17708/54. Class 122 (1). [Also in Group XXIX] A piston 41 formed integrally with a valve closure member (see Group XXIX) and slidable in a stainless-steel sleeve 35 is packed by a pair of rubber sealing rings 57 separated by a metal ring 59 and having annular grooves 58 engaged by metal spreader rings 55. Each spreader ring has pressure equalizing passages consisting of ports 61 communicating with a continuous groove 60 and with the corresponding groove 58. The assembly is held in place by a metal junk ring 63 locked by a grub-screw 64 and engaging the left-hand spreader ring through a metal washer 62. Specifications 707,228 and 707,290, [both in Group XXII], are referred to.
Patent GB-1315929-A (GB)
Title: Indicator lamps
IPC: F21S8/00
Filed: 1972-04-17
Abstract: 1315929 Indicator lamp P ALEXANDER 17 April 1972 [16 June 1971] 17714/72 Heading F4R An indicator lamphas a plastics tubular mousing 1 with a transparent portion 2. A light bulb 3 connected to a current limiting resistor 7 is placed within the housing and the insulated wires 5 brought out of the housing on either side of a plastics cap 11 which has cut-away portions 14 to hold the wires tightly between the housing and the cap. The cap is then welded to the housing.
Patent GB-530705-A (GB)
Title: Improvements relating to the manufacture of water gas
IPC: C10J3/00
Filed: 1939-06-17
Abstract: 530,705. Water gas generation. HUMPHREYS & GLASGOW, Ltd., and COHEN, H. T. June 17, 1939, No. 17724. [Class 55 (i)] The blow gases from a generator a are passed through a dust catcher e to recuperator b containing brickwork in which they are burned with secondary air from an inlet o, the hot combustion products then passing by a pipe h through a second recuperator c containing iron, steel or other refractory non-disintegrating material to a stack m. During a back-run, water is supplied by jets j to recuperator c, and the steam generated is super-heated in recuperator b, and used in the generator. Steam for an up-run is admitted by pipe k, l being the air blast pipe. Specifications 508,617 and 508,618 are referred to.
Patent GB-663589-A (GB)
Title: Improvements in or relating to magnetic compass
IPC: G01C17/00
Filed: 1949-07-05
Abstract: 663,589. Magnetic compasses. REECE CORPORATION. July 5,1949, No. 17754/49. Class 97 (ii). A magnetic compass comprises a support 10, a magnet element 30, 31 and an eddy-current damping element 15, 16, 17, the magnet element being pivotally mounted by bearings 48 on spindle 18 for free rotation relatively to the support 10 and the damping element being pivotally mounted by bearings 24 for free rotation relatively to both the support and the magnet element. Preferably the magnet element and damping element. pivot axes are coaxial, being constituted, as shown, by a single spindle 18. A limited amount of clearance may be provided between the bearings 24, 48 respectively, and the spindle 18. Another embodiment is described suitable for aircraft and having a side-reading compass-card. In both embodiments the freedom of movement about the pivot axis and the inertia of the damping element is such as to resist the tendency for the damping element to rotate in space and thereby to prevent the tendency for the magnetic elements to be moved away from their normal position by oscillatory movements of the damping element.
Patent GB-786873-A (GB)
Title: Improvements in or relating to electric supply apparatus and monitoring and controlling means therefor
IPC: G08B17/06
Filed: 1953-06-26
Abstract: 786,873. Temperature alarms. GRAVINER MANUFACTURING CO., Ltd., MATHISEN, A., and WILKINSON SWORD CO., Ltd. June 18, 1954 [June 26, 1953], No. 17762/53. Class 118 (1). An electric circuit for supplying current to fire a detonator initiating the operation of means for suppressing a fire and/or an explosion, comprises a power supply connected in series with a pair of normally open contacts and a detonator, the contacts serving as a detector and closing in the event of fire or an incipient explosion to fire the detonator and a relay winding connected across the detector contacts and controlling one or more alarm circuits, so that the alarms are operated when the relay is de-energized due to closure of the contacts or due to a fault, such as power-supply failure or the detonator going open-circuit. The detonator 11 is arranged in series with the detector contacts 12, which are of the type described in Specification 719,622, [Group XXXVII], across a firing capacitor C1 which is normally charged continuously from a rectified mains supply or from a battery 13, the relay A becoming de-energized in the event of mains failure and so switching the battery 13 into circuit. Lamps L1, L2 indicate respectively whether the mains or battery supplies are being used. Connected in series across the contacts 12 are relay winding B and a resistor R2 ; . provided that the contacts 12 are open and no fault has developed either to the power supply or the detonator 11, the relay B is energized, thus moving the relay contacts b from the positions shown so that the circuit from the power supply to the capacitor C1 is completed and the visible and audible alarms L3, 14 are de-energized. In the event of fire or an incipient explosion the contacts 12 close, thus discharging the condenser C1 through the detonator 11. The closure of the contacts 12 results in the de-energization of the relay B with. the consequent movement of the relay contacts to the positions shown, whereby the charging circuit to the condenser C1 is broken and the alarms L3 and 14 are actuated. A further contact set may be provided which when the relay B is de-energized perform an ancillary function such as switching off plant in the affected area. When normal conditions have been restored the circuit may be reset by the depression of a push-button PB2 for sufficient time for the condenser C1 to be charged and the relay B energized. A pushbutton test switch PB3 is provided, depression of this switch discharging the condenser and actuating the alarms. A switch PB1 in series with a voltmeter M is used to check the voltage of the battery 13. The value of the resistor R2 is so chosen that even if the relay B became short-circuited, the current drawn would be insufficient to fire the detonator. Specification 786,872, [Group XXIX], also is referred to.
Patent GB-220293-A (GB)
Title: Improvements relating to instruments for pricking and encircling points
IPC: B43K8/16
Filed: 1924-07-25
Abstract: 220,293. Salzmann, E. Aug. 6, 1923, [Convention date]. Mathematical drawing - appliances. - An instrument for pricking and encircling points on squared paper &c. comprises a pricker 1, Figs. 1 and 4, carried by a pin 2 secured to the lower end 3 of a sleeve 4, and an encircling device 8 of graphite &c., secured to the head 6 of a slidable member 5 which extends through slots in the sleeve 4. The point having been marked by the pricker 1, the device 8 can be lowered to mark a circle round the point by depressing the slider against the action of a spring 9. In a modification, Fig. 9, the part 12 to which the needle is secured has an external thread of steep pitch engaged by an internal thread in the head 6. A tool for sharpening the member 8 may be mounted in the upper end of the sleeve 4.
Patent GB-1122265-A (GB)
Title: An improved loom reed
IPC: D03D49/62
Filed: 1965-04-28
Abstract: 1,122,265. Reeds. W. C. ARNOLD. 27 April, 1966 [28 April, 1965], No. 17785/65. Heading DiE. To ensure equal spacing of the dents 1 of a reed or reed unit they are precisely moulded into the baulks 2, 3. Units may be assembled endwise into a carrier 4 and braced by a cap 8 and struts 9.
Patent GB-651463-A (GB)
Title: Vehicle loading apparatus
IPC: A01C3/04
Filed: 1947-07-07
Abstract: 651,463. Loading vehicles. ODDIE, G. S. July 7, 1947, Nos. 17826 and 28384. [Classes 78 (iii) and 78 (iv)] A loading device for a vehicle of the kind comprising a load carrier positioned beyond the rear end of the vehicle and pivotally attached to the outer ends of a pair of lifting members pivotally mounted one at each side of the vehicle, mechanism for raising the lifting members from a position in which the carrier is below the level of the floor of the vehicle at or near ground level to a position in which the carrier is above the vehicle, where it may be tilted by mechanical means to discharge the load into the vehicle, is characterized in that the lifting members are rigid arms mounted on trunnions located in front of the vehicle rear wheels and are capable of swinging movement in vertical planes adjacent to and outside the rear wheels of the vehicle, and the mechanism for raising the arms is such that as the load carrier rises it remains substantially parallel to the ground. Figs. 1, 2 shows the application to a trailer vehicle, wherein a load-engaging member 7 is rotatably supported on arms 2, 21 pivotally mounted at A on members 3, 3<1> fixed to the vehicle. The rod 6 of the member 7 is connected by links 8, 81 to arms 5, 5<1> pivotally mounted on the vehicle at B, whereby when the arms 2, 2<1> are raised to a vertical position over the vehicle, the tines of the member 7, originally parallel with the ground, are pivoted downwards to discharge their load. The arms 2, 2<1>, 5, 5<1> are reciprocated by crankarms 15, 15<1> connected to arms 14, 14<1> secured by links 11, 12, 11<1>, 12<1> to the arms 2, 21, the arms 15 being secured to shafts 16, 161 which are rotated from a power take-off shaft 21 of a tractor through worm gearing 20, 18. The arms 14, 14<1> preferably each comprise two parts joined by pin-and-slot connections so as to be capable of axial movement relative to one another against spring action to allow the cranks 15, 15<1> to pass overcentre without damage should the arms 2, 2<1> be prevented by an obstruction from reaching their lowest positions. According to the first Provisional Specification the tilting of the load carrier may be effected by cables passing over pulleys on the arms 5, 5<1> to the carrier from a winch or other means on the vehicle undercarriage.
Patent GB-530795-A (GB)
Title: Machine for assorting fish
IPC: A22C25/04
Filed: 1939-06-19
Abstract: 530,795. Sorting fish. DANIELSSON, P., and AKTIEBOLAGET G. AREHNS MEKANISKA VERKSTAD. June 19, 1939, No. 17869. [Class 117] A machine for sorting fish according to size comprises a conveyer for feeding the fish along a track transversely to their length, the track having a succession of tilting or supporting edges for the fish which are relatively displaced transversely to the direction of the feed. As shown in Fig. 2, a conveyer 1 with slats 2 feeds the fish A over a support 3. Below the support 3, are receptacles 5, 6, 7 &c. and the track has a series of tilting edges 8, 9, 10 &c. disposed over the receptacles, and the tilt over these bars into the corresponding receptacles. A rotary cutter 12 is placed in advance of the sorting device and the fish are displaced, as by a jet of water, so that the heads contact with a guide bar 11. Bars 13 are provided on the support to prevent longitudinal displacement of the fish. Fig. 3 shows a modification in which the decapitated end of the fish is supported by a bar 47 and guide 17 and the other end rests on a support 3 with stepped edges 14, 15, 16 &c. In a further modification, the tail end of the fish is driven by a rotary brush or water jet under a guide spaced from the support till it jams, the head being supported by a stepped surface.
Patent GB-495458-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J43/26
Filed: 1937-05-11
Abstract: 495,458. Electron multipliers. FARNSWORTH TELEVISION, Inc. May 11, 1937, No. 18024/38. Convention date, May 16, 1936. Divided out of 495,438. [Class 39 (i)] In electron multipliers of the type comprising a series of secondary electron emitting surfaces at progressively increasing potentials, accelerat. ing electrodes are disposed to co-operate with the secondary electron emitting surfaces and are energized to a higher potential. The Figure shows the invention embodied in an electron multiplier as described in Specification 495,438 comprising a source of electrons 4, a series of secondary electron emitting surfaces 9, 9a, 9b and a collecting electrode 15 at successively increasing potentials. In front of each of the surfaces 9 is disposed an accelerating electrode 26, 26a, 26b formed of fine wires or otherwise in such manner as to provide minimum electron pick-up, and at a potential higher than the surface 9 ... 9b with which it is associated. This potential may be derived from an independent source or by connecting each accelerating electrode to the secondary emitting surface next in the series.
Patent GB-932860-A (GB)
Title: Improvements in or relating to telegraphic systems
IPC: G08B9/00
Filed: 1961-05-17
Abstract: 932,860. Electric indicating systems. SIEMENS & HALSKE A.G. May 17, 1961 [May 17, 1960], No. 18036/61. Class 40 (1). In the order telegraph system shown in the Figure a command is sent from transmitter 1 through a selsyn system 2, 3 to a shaft which positions firstly a contact 111 away from a break in a conducting circle 112 and secondly closes one of a pair of contacts by means of magnetic inserts 41, 42. When the engineer repeats the order by moving a handle to bring the gap in sector 112 into line with the contact a bell 12 ceases ringing but the invention is concerned with recognition of the fact that handle 10 is in the ahead or astern position. If the handle is in the position corresponding to the contact closed by the magnetic insert then whichever of the relays 6, 7 is closed by rotation of the shaft is unable to complete the circuit of bell 9. If it is in the wrong position the bell rings until the handle is reversed.
Patent GB-544380-A (GB)
Title: Improvements in or relating to watch cases
IPC: G04B37/08
Filed: 1941-12-23
Abstract: 544,380. Watch cases. TAUBERT FRERES SOC. ANON. Dec. 23, 1940. No. 18039. Convention date, Oct. 25. [Class 139] The back 23 is detachably secured to the case bandpart 21 by a split spring ring 27 seated in a groove 25 of semi-circular section in the band and bearing against a shaped part of the back. The back may be pressed against a packing ring 24, or may have a convex surface bearing against a seating on the band. The glass 22 may be similarly mounted. The groove for the spring ring may be notched at one part for receiving a tool for releasing the spring or the spring may have a projecting tab at one end.
Patent GB-384589-A (GB)
Title: Improvements in or relating to automatic cutting machines for brick-yards
IPC: B28B11/16
Filed: 1932-06-27
Abstract: 384,589. Cutting-apparatus for extrusion brick-machines. BIE, J. C. A. M. DE, 405, ChaussÚe de Malines, Putte, near Malines, Belgium. June 27, 1932, No. 18080. Convention date, June 27, 1931. [Class 87 (ii).] An automatically-acting stream-cutting machine for simultaneously cutting an extruded stream into a number of bricks, includes an endless conveying clay-receiving belt driven at a greater speed than the moving stream and a travelling frame advanced by the stream and carrying the intermittently-actuated cutting-mechanism in addition to means for releasing the severed portion and allowing it to pass beyond the carriage to a position in which it is pushed laterally through fixed cutting-wires. In the illustrated form the moving stream passes from the trough 20 on to the roller-supported portion 2 of the endless belt 1 until it contacts with the stop 7 on the rail carriage 3 and carries the latter with it during its subsequent advance. During this movement the hole 22 in the member 12 engages the projecting arm 21 of the member 14, which is reciprocated intermittently by the main driving-gear, and thus rotates the knife shaft 8 through the medium of the crank 11. The knife 6 thus severs a portion of the stream. The rotation of shaft 8 removes a member 15 from the path of a hook 26 connected to the stop 7 so that the severed portion of the stream can pass beyond the stop by swinging it upward about the pivot 24, and so advance until it strikes the fixed stop 19 at which point it is pushed laterally through the wires 16 by a cam-operated member 17. Two sets of wires 16 may be fitted to an adjustable frame so that either set can be brought into operation at will.
Patent GB-1306009-A (GB)
IPC: B41F9/10
Filed: 1971-05-28
Abstract: 1306009 Printing apparatus ALBERTFRANKENTHALL AG 28 May 1971 [26 June 1970] 18102/71 Heading B6C  A doctor blade 1 is mounted on arms 3 and 4 for axial reciprocation on a tube 7. The blade holder 2 is pivotally mounted with respect to the arms 3 and 4 through arms 24 and a spindle 25. A power cylinder 28 and a lever arm 27 are operable on the spindle to vary the contact pressure and setting angle of the doctor. Rotation of tube 7 by means of lever 14 and piston 15 is used to bring the doctor to its operative position. The degree of rotation of shaft 7 may be limited by means of an adjustable stop. Axial reciprocation of the doctor is brought about by push rod 38. The arms 3 and 4 are carried on a sleeve 5 mounted on the tube 7 through ball bearings 6. Arms 10 and 11 are connected to the arms 3 and 4 through pins 12 and ball bearings 13.
Patent GB-755155-A (GB)
Title: Improvements relating to light projection devices
IPC: H01K1/30
Filed: 1954-06-21
Abstract: 755,155. Lamp projector lenses; electric incandescent lamps. BRITISH THOMSONHOUSTON CO., Ltd. June 21, 1954 [June 29, 1953], No. 18165/54. Classes 39(2) and 75(2). A lens for a light projector for airport approach illumination and having a concave paraboloid reflector 3, Fig. 1, and a planar light source 6 extending parallel to the reflector axis and consisting in three side-by-side coiled segments 6<SP>1</SP> and two end segments 7 with the centre segment centered at the focus of the reflector 3, so as to redirect beams from the reflector into a smooth rectangular patterned light beam of uniform sectional light intensity with a sharp cut-off at the boundaries of the rectangle, comprises in a central area on its inner face horizontal primary, preferably concave, flutes 16-23, Fig. 2, for vertically spreading the light rays passing therethrough and at the .portions of the lens other than at lateral side portions D thereof, a series of secondary vertically extending, preferably concave, flutes 24 in areas A, A<SP>1</SP>, 25, in areas B, B<SP>1</SP>, 26, in area C superimposed on the flutes 16-23, the flutes 26 in a central zone C being of horizontal lesser light spread, e.g. 28 degrees than the others of the secondary flutes 24, 25 e.g. 40 degrees and 36 degrees respectively and in the side portions D, superimposed on the primary flutes, vertically extending left and right bending prisms 27 for refracting e.g. at 14 degrees the light rays one half to each side of the projected beam. These prisms 27 may also be vertically fluted to spread horizontally by e.g. 2 degrees the rays passing therethrough so as to smooth out the portions of the beam produced by the side portions of the lens. These prisms may also take the form of right-angled triangles so as to be completely left-bending or right-bending. The primary flutes in the central parts of areas B, B<SP>1</SP> may have a vertical light spread of 10 degrees and in the other areas, of 15 degrees. The lens is shown as incorporated in a lamp of the "sealed beam" type described in Specification 515,091 fusion sealed at its periphery 2, Fig. 1, to the rim of a preformed glass paraboloidal reflector section 3 to form the envelope of the lamp. The segments 6<SP>1</SP> of the filament 6 are supported at their bight portions by supplementary support wires 9 anchored in an insulation bridge 10 fastened across the lead-in conductors 8 secured to metal thimbles 11 fusion-sealed at their rims to the exterior of section 3 and covered by an insulation cap 13 fitted over prongs 12 of blade type secured to the thimbles, the cap 13 being held in place as by bent out tongues on the prongs. The lamp envelope is exhausted and may be filled with an inert gas such as argon, nitrogen or mixtures thereof.
Patent GB-814154-A (GB)
Title: A process and material for the direct production of positives by the silver salt diffusion process
IPC: G03C8/28
Filed: 1957-06-07
Abstract: 814,154. Photographic silver salt diffusion-transfer process and transfer material therefor. AGFA A. G. June 7, 1957 [June 9, 1956], No. 18212/57. Class 98(2) A starch ether or a gallactomannan is used as a binding agent for at least the transfer layer to facilitate separation of the layers after image transfer. Examples specify (1) a gelatino silver chloride emulsion for the negative layer and starch methyl ether containing silver sulphide, hypo and saponin for the transfer layer; processing is effected with aqueous pmethylaminophenol sulphate, hydroqinone, potassium bromide and caustic soda, and the layers are dried over a heated roll before separation. (2) Addition of a proportion of sodium carboxymethyl cellulose to the negative layer, transfer layer and processing being the same as in Example 1 except that separation is effected after drying at normal temperature. (3) Addition of starch to the negative layer of Example 1 and the use of starch hydroxyethyl ether with a proportion of gelatin as binding agent for the transfer layer; processing includes passage over a heated roll with the transfer layer adjacent thereto. (4) Guar gum, silver sulphide, hypo and a wetting agent on a paper support for the transfer layer. Other starch ethers, and locust bean gum as a further galactomannan, and other nuclei, are quoted for use in the transfer layer. Either or both of the layers may contain small proportions of other colloids. The negative layer may include a matting agent such as starch, ethyl cellulose, barium sulphate or titanium dioxide. Specification 687,751 is referred to.