baber/WOPTO huggingface dataset:
Patent GB-401426-A (GB)
Title: Improvements in photometric apparatus
IPC: G01J1/12
Filed: 1932-07-08
Abstract: 401,426. Photometric apparatus. FRENCH, E. A. H., 17, Thorpewood Avenue, Sydenham, London. July 8, 1932, No. 19311. [Class 97 (i).] Comprises a portable comparison photometer which can be used as a telephotometer for measuring the atmospheric transmission factor of light, particularly over long ranges, and can also be adapted as a foot candle meter for measuring the brightness of an illuminated white surface or the intensity of a luminous source. When the instrument is used as a telephotometer, light from the distant target is received by an objective 0 and, after reflection by mirrors M1, M2, passes through the central transmitting portion of a Lummer- Brodhun cube P and forms an image which is observed in an eyepiece E. The comparison lamp L is mounted on a screw R within a whitened chamber, the screw being rotatable by a knob H to move the lamp along the chamber. The light from the lamp passes through a diffusing screen S1, and through an aperture A1, the area of which can be varied by means of a slide Q1 operated by a graduated drum D1. Below the aperture A1 is another diffusing screen S2 above an aperture A2 which can be varied by a slide Q2 displaceable in a direction at right-angles to the displacement of the slide Q 1 by a second graduated drum, not shown. The light passing through the aperture A2 is transmitted by a third diffusing screen S3 and falls on a white slab A by which it is diffusely reflected to pass through a small aperture in a plate K. The light passing through this aperture is received by a short focus collecting lens N and is then incident on the annular reflecting part of the cube P so as to form an image which is also observed in the eyepiece E. To measure atmospheric transmission, the apparatus is first placed at a short distance, e.g. 50 feet, from the external illuminated target and, with both apertures A1, A2 fully open, the lamp L is displaced along the screw R until the two images in the eyepiece E are matched. The instrument is then moved to the far end of the range and the images are again matched by adjusting the drum D1 : the reading of this drum then gives the atmospheric absorption over the said range. If the absorption is great, the drum controlling the slide Q2 also is used and the readings of the two drums are multiplied together. To adapt the instrument for use as a foot candle meter, a white plaster screen V is inserted in the light path at 45‹ to the line of vision. Adjacent this screen is an aperture provided with a screw cap U which is removed to allow light from the source to be measured to pass through the aperture. A dispersive lens N1 of such power as to neutralise the lens N is inserted in the light path from the comparison lamp, and the plate K is withdrawn so that a large area of the surface A is exposed. The eyepiece E is replaced by one of low power which focuses the diagonal plane of the cube P. The brightnesses of the surfaces A, V, can then be compared.
Patent GB-1291892-A (GB)
Title: Door assembly
IPC: E05D15/38
Filed: 1970-04-22
Abstract: 1291892 Upwardly opening door OVERHEAD DOOR CORP 22 April 1970 [16 May 1969] 19340/70. Heading EIJ An upwardly opening one-piece door 11 carries at the upper and lower ends of its side edges upper and lower pairs of coaxial rollers 49 and 58 for engagement in tracks mounted adjacent an opening 17 in a wall 18 closed by the door 11 when in its upright closed position, the lower rollers 58 engaging in a pair of spaced parallel upright tracks 24 extending along opposite side edges of the opening 17 and having lower end portions 29 curved towards the opening, and the upper rollers 49 engaging in a pair of spaced parallel tracks 33 extending away from opposite ends of the upper edge of the opening and having similar curved end portions 42. As shown, the upper tracks 33 are horizontal, but they may alternatively be almost vertical. The curved ends 29, 42 of the tracks 24, 33 provide a final closing movement of the door 11 downwardly and towards the opening 17 to compress a resilient sealing strip 20, 22 extending around all edges of the door, and to prevent jamming of the door in the closed position. The door is provided with spring-biassed pulley counterbalance means 13 connected to the door by cables and mounted above the opening 17 on a shaft 67 which is driven by the dooroperating mechanism 14.
Patent GB-153647-A (GB)
Title: Improved hydro-carbon gas generating and burning apparatus
IPC: F23D11/44
Filed: 1919-08-06
Abstract: 153,647. Haddan, R., (Champion Kerosene Burner Co.). Aug. 6, 1919. Oil gas.-In apparatus for generating and burning a combustible gas which is obtained from liquid hydrocarbons, the liquid fuel is vaporized and used to inject the air required for its combustion into the furnace to be heated. Oil from a reservoir 7 is supplied under air pressure through a pipe 1<h>, needle valve 1<e>, and reservoir tube 1<d>, to a U-shaped retort 1, which in starting the apparatus may be heated by spirit burned in a hollow flange 2<b>. The oil vapour under pressure passes bv a pipe 1<k> to an injector 1<e> and draws air with it into a pipe 4 leading by a conduit 4d to a furnace F, where it is burned. A part of the combustible mixture is by-passed through a short pipe 4b having an interchangeable collar 4<e> to a casting C in which are a row of jets 2e through which the mixture passes and is burned to heat the retort 1, a cover 2n confining the heat generated.
Patent GB-666097-A (GB)
Title: Improvements in lamp holders for double-ended electric lamps
IPC: H01R33/08
Filed: 1949-07-26
Abstract: 666,097. Lamp-holders. BRITISH THOMSON-HOUSTON CO., Ltd., and WOOD, C. W. May 26, 1950 [July 26, 1949], No. 19635/49. Class 38 (i). A holder for a double-ended bayonet-capped lamp 5 comprises a body 1 provided with resiliently-mounted contacts 9 and having a partly-surrounding sleeve 13 slidable thereon so as to engage the lamp cap 12 and to retain the lamp in position. The sleeve 13 has a tongue 14 which engages the lamp cap 12 itself earthed by a spring-leaf 15 projecting from a recess in the body. Each contact 9 is mounted on the end of a box-shaped member 7 which slides in a rectangular body recess 6, against a corrugated spring 10 connecting the contact 9 to a binding- post 11. Sloping faces 8 on the members 7 guide the cap contacts to the holder contacts 9 and the body is slotted at 16 to allow a cap bayonet-pin to enter. ,
Patent GB-960263-A (GB)
Title: Catalyst for the purification of exhaust gases from combustion engines
IPC: B01J23/42
Filed: 1961-05-31
Abstract: An oxidation catalyst comprises cylindrical particles of a mixture of Al2(SiO3)3 and Al2O3, a fine deposit of less than 0,1% Pd and/or Pt carried by the particles which have a bulk density of 0,6-0,8 Kgs./litre. The particles during manufacture are annealed at 950-1350 DEG C.  A typical composite catalyst may contain 0,06% Pt, 27% SiO2, 71% Al2O3, 1% Fe, 0,2% CaO, 0,3% MgO, 0,2% K2O, 0,2% Na2O, 0,04% impurity and may have a density of 0,76 Kgs./litre.  The cylindrical particles may have equal heights and diameters which vary from 2-8 mms.
Patent GB-419722-A (GB)
Title: Improvements relating to absorption and adsorption refrigerating apparatus
IPC: F25B49/04
Filed: 1934-07-04
Abstract: 419,722. Stoves combined with refrigerators. BOVING, J. O., 47, King William Street, London. July 4, 1934, No. 19688. [Class 126.] An absorption refrigerating apparatus is associated with a cooking stove so that air heated by passage through an annular flue l surrounding the metal fire pot d of the stove is used to heat generators p<1>, p<2> of the refrigerating apparatus. The heated air is delivered through a nozzle o which may be swivelled to direct the hot air to the two generators alternately, the unheated generator being cooled by air flowing directly thereto. The refrigerating apparatus is employed for cooling a cabinet w.
Patent GB-1204308-A (GB)
Title: 4-cyano-2,6-dihalophenyl carbonates and their use as herbicides
IPC: C07C255/55
Filed: 1969-04-17
Abstract: 1,204,308. 4-Cyanophenyl carbonates.  BOEHRINGER INGELHEIM G.m.b.H. 17 April, 1969 [17 April, 1968], No. 19752/69. Heading C2C. [Also in Division A5] The invention comprises compounds of the formula wherein X represents a bromine or iodine atom and R represents an allyl, tetrahydrofurfuryl, benzyl, 2,2,2 - trichloroethyl, 2 - methoxyethyl or a phenyl radical, optionally substituted by halogen atoms. They are prepared by reacting the appropriate phenol with Y.CO.OR or the appropriate phenyl carbonyl chloride or bromide with ROH, where Y is a chlorine or bromine atom. The compounds have herbicidal activity.
Patent GB-1109505-A (GB)
Title: Improvements in or relating to the coating of steel and other wire with a second metal
Inventor: DAVIES PETER GOUGH
IPC: C23C2/26
Filed: 1964-05-13
Abstract: A method of providing a ferrous metal wire, e.g. of high carbon non-alloy steel, with a coating of a second metal, such as Zn, having a melting point lower than that of the metal forming the wire by advancing the wire through a molten bath of the second metal, withdrawing the wire from the bath with a coating of the bath metal thereon, depositing on to the so coated wire while the coating is still molten a further coating of the second metal in the form of solid particles thereof electrostatically charged so as to effect adherence between the particles and the coating metal applied by the bath, so as thereby to increase the thickness of the coating, and after the initially molten coating metal has solidified, subjecting the so coated wire to a die or other reduction operation and thereby simultaneously smoothing the surface of the so applied coating. Prior to coating, the wire may be advanced through cleaning and flux applying baths.  The wire may be withdrawn from the coating bath in a vertical direction and the particles be applied at a distance not exceeding 6 feet above the bath surface.  The particles may be coated prior to their electro-deposition with a wax or other flowable electrostatically insulating non-tacky material.
Patent GB-1359172-A (GB)
Title: Photographic apparatus
IPC: G03B15/04
Filed: 1971-06-10
Abstract: 1359172 Photo-flash apparatus EASTMAN KODAK CO 10 June 1971 [13 June 1970 31 July 1970 29 Aug 1970] 19896/71 Headings G2A and G2X A photo-flash apparatus comprises means for receiving a percussion - fireable flash-lamp unit and locating a flash-lamp thereof in a firing position, actuating means responsive to the application of a mechanical force for firing a lamp located in the firing position, means for receiving a Piezoelectrically-fireable flash-lamp unit and locating a flash-lamp thereof in a firing position, Piezoelectric means which upon application of a mechanical force thereto generates an electrical pulse for firing a Piezoelectricallyfireable flash-lamp located in the firing position, and common means for producing the mechanical forces. As shown Fig. 1, a camera comprises a socket 16 in which there can be inserted a percussive flash-lamp unit 12 having a cocked firing spring 20 which has an end 24 which is released by raising a slide 50 to fire a flash-lamp. It also has a socket 14 having electrical contacts 80 connected via either of two switches 86, 88 to a transformer 84 powered by a Piezo crystal 82 so that an electric flash-lamp unit in the socket can be fired. Socket 16 has a depending finger which, when a flash unit is inserted, is depressed thus pivoting a lever 30 so that an arm 40 opens switch 86 and the upward movement of slide 50 is no longer blocked by a pin 54. On moving a portion 112 of the shutter release to the right, lever 100 is rotated so that its striker 114 hits Piezo crystal 82; rotation of lever 100 causes rotation of lever 120 so that end 130 pushes up end 76 of a lever 70 so that cam 74 pushes up slide 50 to release spring end 24 and fire the percussive flash-lamp. If a percussive unit is present in socket 16 so that switch 86 is open, the electric flash-lamp will not be fired unless switch 88 is manually closed by knob 94 in which case the flash-lamps in both sockets will be fired simultaneously. If no flash unit is in socket 16 switch 86 is closed so that a flash unit in socket 14 is fired. In an alternative camera Figs. 4 and 5 (not shown), a spring- loaded lever 230 is released by a portion 264 of the shutter release to either (a) release spring end 24 to fire the percussive flash-lamp or (b) strike a Piezo crystal 290 and thus fire an electric flash unit. Flash adaptors which fit into a flashcube socket or flash accessory shoe of a camera and are fired by a cable release or the X-synchronized circuit of a camera are also described Figs. 6-8, (not shown).
Patent GB-713266-A (GB)
Title: Improvements in or relating to road vehicles for use in distributing granular or powdery materials on ground
IPC: A01C17/00
Filed: 1951-08-24
Abstract: 713,266. Road-gritting apparatus. LUKE, J. S. Aug. 25, 1952 [Aug. 24, 1951], No. 19970/51. Class 6 (1) A road-gritting machine comprises a tipping- lorry 4 having partitions 5 within the body 3 attached to the tailboard 2 and converging rearwardly towards it to form a shoot through which material may pass, via an adjustable gate 6, on to a delivery shoot 7 which directs it on to the surface of a rotary vaned-disc 9 for distribution over the ground. The disc is carried by an arm mounted on a vertical pillar 15 secured to the shoot 7 and is driven frictionally by a wheel 10. The wheel is carried by a fork 12 pivoted to the pillar 15 so as to contact both the ground and the underside of the disc when the body 3 is tilted. The spaces 27 between the partitions 5 and the body 3 provide stations for operators controlling the gate 6 and the flow of material.
Patent GB-1505425-A (GB)
Title: High discharge capability sealed through connector
IPC: H01M50/528
Filed: 1976-05-14
Abstract: 1505425 Sealed connector for batteries GATES RUBBER CO 14 May 1976 [15 May 1975] 20002/76 Heading H1B' A sealed through connector for conducting current from an electrolytic device (e.g. a lead acid cell) through a substantially nonconductive resilient partition (e.g. ABSg polyphenylene oxide) comprising at least one connector seat having a through bore 26 and contained within said resilient partition, the seat comprising a shoulder portion 30 interposed between a reduced neck portion 32 and an inclined ramp portion 34, a connector post insert comprising a stud 36 of electrically conductive material and a deformable lead or lead alloy shroud 48 having an inclined surface portion, the electrical resistivity of the steel (e.g. brass, copper) being substantially less than that of the shroud, means associated with the stud (e.g. nut means 35 or a spring clip) for pressing the inclined surface portion of the shroud against the inclined ramp portion of the seat to form an interference fit therebetween and to establish a liquid tight seal. The stud may have an external leg 44 also surrounded by a lead shroud which connects with the electrodes by lug 14. The connector may be used as a battery terminal or for intercell connections in a battery.
Patent GB-221925-A (GB)
Title: Improvements in and connected with internally fired bakers' ovens
IPC: A21B1/04
Filed: 1923-08-04
Abstract: 221,925. Smith, F. Aug. 4, 1923. Oven fire-places; air, supplying; walls; roofs; furnace fronts; doors.-An internally-fired bakers' oven m is heated by a furnace the roof of which consists, at the front part, of an arch a resting on a bar b and filling-pieces c carried by the side walls d, d', and, at the rear, of a block k which is tapered in plan and has inclined side walls to support, on one side, the oven arch l and, on the other, the extensions a<x> of the furnace arch a. Vertical passages e, g formed in the arch a, communicate with a horizontal flue f which is provided with a, valve f at its front end to control the admission of air. The furnace is provided with an outer door h and an inner door formed in two parts h<1>, h<2>, the upper part having apertures i through which air enters the combustion chamber and, passing up the passage e and along the flue f, is delivetred downwardly into the fuel at the rear of the furnace through the passage g. One side wall d<1> is longer than the other wall d and their rear ends together with the central portion k<1> of the back edge of the block k are rounded. The fire-bars o rest on a bar n which also supports the perforated firebridge p and is formed, at one side, with a vertical extension n<1>, n<2> to retain the wall d in position, the part n<2> being rounded to correspond with the rounded end of the wall. In a modification, the port e is provided at the front of the arch a and the bearer-bar n has a horizontal extension formed with holes to receive vertical square-section rods which bear against the outer side of the wall d.
Patent GB-850016-A (GB)
Title: Improvements in or relating to methods of manufacturing graphite bodies and nuclear fuel materials comprising said graphite bodies
Inventor: WILLIAMS JACK
IPC: C04B35/528
Filed: 1957-06-25
Abstract: Pure graphite blocks having a density of at least 1.9 gm./c.c are made by grinding synthetic graphite powder for at least 45 hours until substantially all the particles are less than 40 microns in diameter and at least 80% of them are less than 20 microns in diameter, leaching out impurities with HCl if necessary, and cold-compacting the powder at a pressure of at least 20 tons per square inch in a die or by hydrostatic pressure. The powder may be mixed with up to 50% by volume of fissile or fertile material in the form of metal, oxide, or carbide powder. Examples of the process are given.  Specifications 833,647, 850,014 and 850,015 are referred to.ALSO:Graphite blocks of high density, i.e. 1,9 gm/c.c. or more, and high purity are made by grinding synthetic graphite powder for at least 45 hours until substantially all the particles are less than 40 microns in diameter and at least 80% of them are less than 20 microns in diameter, leaching out impurities with HCl if necessary, and cold-compacting the powder at a pressure of at least 20 tons per square inch in a die or by hydrostatic pressure. The powder may be mixed with up to 50% by volume of fissile or fertile material in the form of metal, oxide, or carbide powder. Examples of the process are given.  Specifications 833,647, 850,014 and 850,015 are referred to.
Patent GB-850728-A (GB)
Title: Improvements relating to weld inspection means
IPC: G01N29/22
Filed: 1959-06-12
Abstract: 850,728. Ultrasonic inspection devices. STEWARTS & LLOYDS Ltd. June 12, 1959 [Dec. 23, 1958], No. 20135/59. Drawings to Specification. Class 40(7). In a development of Specification 849,194 two ultrasonic transducers are used to detect flaws in the welded seam irrespective of limited deviation of the latter from its normal centre-line. The transducers are spaced longitudinally and radially and are mounted on a common cantilever from the support adjacent the seam, Fig. 2A (not shown). Operation is at 10 mc/s. and the lithium sulphate crystal transducers are connected in parallel. Specification 850,729 also is referred to.
Patent GB-1236611-A (GB)
Title: Limiting network
IPC: H03K19/08
Filed: 1968-04-29
Abstract: 1,236,611. Transistor limiting circuits. R.C.A. CORPORATION. 29 April, 1968 [10 May, 1967], No. 20173/68. Heading H3T. In a limiting network having two amplifier devices, such as transistors 21, 22 connected between current carrying paths 17, 18, a control electrode of each device is connectible to a control voltage V CL  such that the difference in levels of currents flowing in like directions in the two paths is determined by the control voltage and the difference is maintained by diverting current from one to the other of the paths via the devices 21, 22. As shown, the limiting circuit 20 is connected across the output connections 17, 18 or a logic circuit so as to prevent saturation of transistors 11, 12 in comparators 10 1 , 10 2 , 10 n . The transistors 21, 22 are biased so that for the closest decision case of the majority gate 10 1  10 2 -10 n  neither of these transistors is on. In a 7 input majority gate any deviation from the closest decision of 4 current units in one output circuit 17 and 3 current units in the other output circuit 18, caused by different input conditions X 1 , X 2 - X n , make either the voltage at V A  or V B  become more negative such that the corresponding transistor 21 or 22 turns on. When the transistor 21 or 22 is conducting this limits the voltage excursion at V A  or V B  and since the conducting transistor also draws current via the other load resistor 32, 31, the positive or high voltage excursion at V B  or V A  is limited. Base resistors 23 and 24 limit the base currents to avoid base collector and emitter collector currents from flowing in the off transistor 21 or 22. The outputs V A , V B  of the logic circuit are compared in a discriminator 35 which includes a comparator 40, 41 feeding output emitter follow transistors 45, 46 providing complementary outputs #V 0 , V 0 . The reference voltage fed to the comparators 10 1 , 10 2 , 10 n  may be obtained from a voltage divider. The outputs #V 0 , V 0  may be fed to voltage clamping control circuit (50, Fig. 2, not shown), which provides the clamping voltage V CL  for the limiting transistors 21, 22. The control circuit (50) includes a comparator circuit including three emitter coupled transistors (51, 52 and 53), one of which has its base connected to a reference voltage V R  which may be different from the reference voltage V ref  applied to the Fig. 1 logic circuit. For the closest decision case the output clamping voltage V CL  is insufficient to turn on the transistors 21, 22. When the outputs #V 0 , V 0  alter corresponding to deviation from the closest decision case the control circuit (50) renders the ON transistor 21 or 22 more or less conductive according to the input signal conditions X 1 , X 2 -X n  applied so as to prevent saturation of input comparators 10 1 , 10 2 , 10 n  and the driven comparator 40, 41. The limiting circuit may be in integrated form.
Patent GB-259709-A (GB)
Title: Improvements in creeper conveyors
IPC: B66B17/20
Filed: 1925-08-12
Abstract: 259,709. Turnbull, F. Aug. 12, 1925. Rope railways. - For lowering colliery tubs down inclines, a conveyer chain is used having opposed horns C, D for engaging both sides of an axle. Horn C is pivoted and counterbalanced, while horn D is pivoted but is raised by engagement with an angle rail E. The track preceding the incline comprises a braking section A, B which may be level or upwardly inclined and provided with automatic stops or brake devices.