baber/WOPTO huggingface dataset:
Patent GB-297995-A (GB)
Title: Improvements in or relating to apparatus for continuously treating moving strips of photographic film
IPC: G01J1/42
Filed: 1927-11-04
Abstract: 297,995. Kodak, Ltd., (Eastman Kodak Co.). Nov. 4, 1927. Printing-meters.-In apparatus of the kind in which a film is exposed to light in order to print therefrom a positive image on a second film, or, in the case of a reversal process, to effect the second exposure which results after development in the production of a positive image on the film itself, the amount of light to which the moving film is to be exposed is determined by causing the film to pass over a light-responsive element such as a thermopile, which is excited in accordance with the density of the film, and controls the amount of printing-light falling on the film. The apparatus comprises a lamp 14, Fig. 2, which projects light on to the moving film f through diffusing screens and lens and prism combinations. housed in tubes 34, 27. The light, from the tube 34 is rendered non-actinic by a masking filter 29, and after passing through the film at Z, where its intensity is reduced in accordance with the density of the film, falls on a thermopile 50 electrically connected to a galvanometer 71, Fig. 4, the needle 70 of which carries a shutter 69 co-operating with an aperture 68 in a. diaphragm 66 regulating the amount of light emerging from the tube 27. This light is actinic, and is deflected by prisms 72, 73 on to the film at T to make the reversing exposure. Owing to the delayed action of the thermopile, the positions Z and T are spaced apart, and the distance may be varied by adjustment or replacement of the prisms 72, 73. If the time-lag of the measuring instrument is negligible, the measuring and printing stations Z and T may be coincident, and a single beam of light will suffice. Interchangeable thermopiles and galvanometers may also be provided. For making initial adjustments of the apparatus, a shutter 20 is provided for controlling the light to the tube 2'7, and an iris diaphragm 41 is provided in the objective 38 of the tube 34. The film at Z passes between a lower fixed glass plate and an upper removable glass plate, both immersed in a water trough 44. Provision is made for visual inspection of the shutter 69 and diaphragm aperture 68. A modified apparatus is shown symmetrically in Fig. 5 for printing a positive pf from a negative nf. The negative nf is non-actinically illuminated at T from the lamp 100 by way of the optical system 101, 103, 105, the light after traversing the film exciting a thermopile 110 connected to a galvanometer 130 controlling as before the intensity of the printing- light passing from the lamp 100 by way of the optical system 102, 104, 106 to the printing-gate 121. To compensate for the delayed action of the thermopile 110, the negative film nf passes round rollers 111, 112, 113 of which 112 is carried by an adjustable rack to vary the separation between the roller 112 and the rollers 111, 113. Provision is made to compensate for variations in the voltage of the mains supplying the lamp in either form of apparatus.
Patent GB-1363061-A (GB)
Title: Master cylinder
IPC: B60T11/22
Filed: 1973-06-21
Abstract: 1363061 Master cylinders SOC ANON DBA 21 June 1973 [12 July 1972] 29541/73 Heading F2F A master cylinder comprises at least one piston slidably mounted in a blind bore 12 in a body 10 and defining therein a pressure chamber connected to a reservoir by a replenishing passage provided with a valve 70 having a tiltable closure member operated by a push-rod 50 connected to the piston by way of stroke amplifying means which, as shown, is a lever 92, As shown, the master cylinder is intended for a dual brake circuit and has an actuating piston 14 and a floating piston 16 defining pressure chambers 18, 20. A double reservoir 28 of elastomeric material is formed of an enclosure 32 and cup 38 welded thereto by fins 40 and provided with a tube 42 co-operating with a seal 44 and communicating with a cavity 62 receiving a tilting valve 70 controlling flow of fluid to chamber 18 via a duct 46. The push-rod 50 carries a conical rubber valve member 90 which can close the end of a duct 80 through which fluid passes from the outer reservoir via a duct 76 to replenish chamber 20.
Patent GB-173367-A (GB)
Title: An improved bolt and socket fastening device
IPC: F16B5/02
Filed: 1920-10-20
Abstract: 173,367. Schuermans, M. Oct. 20, 1920. Bolting; nuts.-In order to permit the removal of a bolt from the work without entire withdrawal of the nut, the hole 4 in the work is made of larger diameter than the shank of the bolt 3 and is open to the outside bv a slot 5 of sufficient width to allow the lateral insertion or removal of the bolt, the slot increasing in width from the hole to the outside of the work. The nut 8 is provided with a sleeve 7 adapted to fit the hole 4 so that when the nut is tightened the bolt cannot be removed. The slot 5 and the hollow of the sleeve 7 may be tapered. A stud provided with a nut at each end may be used in place of a headed bolt.
Patent GB-827425-A (GB)
Title: Improvements in vapor-liquid phase conversion
IPC: B01D5/00
Filed: 1957-09-20
Abstract: <PICT:0827425/III/1> A vapour-to-liquid phase converting apparatus contains condensation nuclei producing means and heat transfer means to effect a condensation of vapour into liquid wherein the condensation nuclei producing means are electrical discharge means which produce condensation nuclei by vaporization to increase the amount and rate of condensation in said chamber.  In a preferred embodiment applied to a steam condenser 1 (Fig. 1) comprising a tubular shell 2 and containing hollow metallic tubes 7 extending axially along the length of the shell through which pass cooling water, which enters through conduits 8 and leaves through conduits 9, electric arc discharge condensation nuclei sources 10 are positioned in the shell to provide nuclei in the condensing steam.  The source consists of a terminal board 11 fastened to the chamber wall 2, to which board is mounted a pair of stand-off insulators 12 having conductors 13 extending therethrough to constitute a pair of spaced discharge electrode elements 14 forming a discharge gap.  Energy is provided by a high-voltage step-up transformer of the iron core type having a primary winding and a secondary winding.  Surrounding electrodes 14 and the discharge gap is a hollow slitted tubular member 20 which assures that the vaporized material recombines into fairly large condensation nuclei.  As an alternative, the condensation nuclei source consists of an electromagnetic relay (Fig. 3, not shown) producing electric arcing.  Combustion products, vaporization of salt, liquid sprays, metallic carbonyls, dust sprays may be utilized as condensation nuclei.  The process is also applicable to the treatment of vaporized oil and materials known under the Registered Trade Mark "Freon."
Patent GB-1389903-A (GB)
Title: Homokinetic joint
IPC: F16D3/224
Filed: 1972-06-23
Abstract: 1389903 Universal joints A BELLOMO 23 June 1972 [26 June 1971] 29686/72 Heading F2U The groove cross-section in at least the inner member 1 of a homokinetic joint comprising torque transmitting balls 10, 11 located in intersecting grooves in mating spherical surfaces, is relieved (e.g. at 23) at its edge on the unloaded side to give a bearing arc 20-21 of less than 180 degrees while retaining at least 90 degrees arc 19-20 on the loaded side of the plane containing the groove axis 8<SP>1</SP>. The edge at this side may also be relieved at 22. The material of the inner member 1 and may be also the outer member 4 may be steel with either 1%, or 0.5% carbon, with traces of chromium and possibly manganese or molybdenum. It may be heat treated by quenching in a salt bath to 180‹ C. followed by air cooling and tempering to between 150‹ and 220‹ C.
Patent GB-484405-A (GB)
Title: Improvements in aircraft
IPC: B64C21/02
Filed: 1936-11-02
Abstract: 484,405. Reducing drag on aircraft surfaces. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and OWNER, F. M. Nov. 2, 1936, No. 29804. [Class 4] Means for reducing drag on aircraft surfaces comprise a chamber within the aircraft body, an inlet conduit leading to the chamber from perforations in the surface of the body, an ejector-nozzle within the chamber, an exhaustpipe leading from an aero-engine to the nozzle and an outlet conduit leading from said chamber to discharge air drawn from the boundary layer in a rearward direction. As shown, the exhaust gases from an aero engine 13 pass from a manifold forming the leading edge of a cowling 16 through a tail-pipe 21 to ejector-nozzles 22 disposed in a chamber 19 in an aircraft wing 10. Air is drawn through orifices 17 in the upper surface of the wing and is discharged together with the exhaust gases through a conduit 20. The outlet of the conduit 20 may be disposed in the under surface of the wing towards the trailing edge. The orifices may be formed of holes one sixty-fourth inch diameter and one quarter-inch pitch and be situated at about the middle of the wing chord. The nozzles 22 and chamber 19 may be designed to facilitate flow and may be designed to give a propulsive effect.
Patent GB-974074-A (GB)
Title: Process for preparing a formaldehyde solution containing a stabilizer
IPC: C07C47/04
Filed: 1963-07-26
Abstract: A stabilized aqueous solution of formaldehyde containing 15-60% by weight of water is prepared by introducing cyanuric acid during the formation of the solution in such an amount that the prepared solution contains 3-8 moles of formaldehyde per mole of cyanuric acid.  An aqueous solution of formaldehyde which is dilute enough to be stable may be first prepared, cyanuric acid then added and water evaporated until the solution contains 15-60% of water. Alternatively the stable solution may be continuously prepared by supplying formaldehyde-containing gas to an absorption system comprising two or more stages; in the first stage the gas is washed with an aqueous solution of formaldehyde and cyanuric acid and in the last stage gas not absorbed in the preceding stage(s) is washed in counter-current with water, the solution resulting from the absorption in the stage(s) after the first is used in conjunction with part of the solution produced in the preceding stage as washing liquid in that stage and the part of the solution produced in the first stage which is not recirculated is discharged from the system as final solution.
Patent GB-773616-A (GB)
Title: Improvements relating to the suspension of paper bags or sheets
Inventor: BARON ARTHUR JAMES
IPC: A47F13/08
Filed: 1954-10-18
Abstract: 773,616. Filing papers. BIBBY & BARON, Ltd. Sept. 28, 1955 [Oct. 18, 1954], No. 29880/54. Class 146(1). Paper bags a or other sheets are strung up by means of a short loop b of string passed through a hole therein, with one end c of the loop passed through the other end d and used for suspending the sheets. The weight of the sheets tends to keep the loop pulled tight so that it holds all the small pieces of paper left when the sheets are torn off.
Patent GB-1120276-A (GB)
Title: 5-substituted tetrazoles
Filed: 1965-07-14
Abstract: Compounds of formula <FORM:1120276/C2/1> wherein each Y is carbon or one of them is nitrogen, X1 and X2 are each hydrogen, alkyl (1-4 C), cycloalkyl (3-7 C), halogen, hydroxy, acetylamino, amino, alkyloxy, alkoxycarbonyl, alkylthio, mono- and di-alkyl-amino, N-alkylcarbamyl, N,N-dialkylcarbamyl, alkylsulphoxy or alkylsulphonyl, the alkyl groups containing 1-4 C, trifluoromethyl, trifluoromethoxy, trifluoromethylthio, methoxymethyl, carboxy, carbamyl, alkanoyloxy containing up to 4 C, phenyl, or p-chloro, methyl- or amino-phenyl, and n is 0 or an integer from 1 to 4, and their N-oxides, acid addition salts and salts with bases (new compounds comprising those where X1 and X2 are not both H), are prepared from corresponding cyano compounds by forming the tetrazole ring by reaction with (1) an alkali metal azide and (2) ammonium chloride, in the presence of a lithium halide catalyst, and, if desired, treating the product with a peroxide to form the N-oxide.  Alternative methods of preparation are also described.  Pharmaceutical compositions, for regulating lipid metabolism, comprise the compounds of the invention in combination with pharmaceutically acceptable carriers.
Patent GB-414364-A (GB)
Title: Improvements relating to the manufacture of fuel briquettes from carbonaceous material
IPC: C10L5/10
Filed: 1932-10-26
Abstract: 414,364. Agglomerating fuel. ROBERTS, A. A., Imperial House, Kingsway, London. Oct. 26, 1932, No. 29979. [Class 50.] Carbonaceous material such as coal, coke, sawdust, tan bark, peat, lignite, anthracite and carbonaceous residuums is briquetted with hydraulic cement and a bituminous emulsion, the cement not exceeding 5 per cent by weight, being distributed dry throughout the coal. &c., and the mixture being wetted by means of the water of the emulsion which does not exceed 7 per cent by weight of the coal. The water may contain boric acid, sodium chloride, potassium salts or other substances increasing the intensity of combustion and starch and caustic soda may be used as emulsifying agents. Bituminous material known under the Registered Trade Mark " Mexphalt " may be used. The Provisional Specification describes a method of incorporating the binders in which the cement is mixed dry with the coal particles, sufficient water is then added to effect setting of the cement and the aqueous emulsion is added immediately afterwards. The briquettes may be heated for a short time at a temperature not above 500‹ C. Specifications 414,361, 414,362, 414,363, and 414,366 are referred to.
Patent GB-866097-A (GB)
Title: Improvements in or relating to prefabricated buildings
IPC: E04B2/62
Filed: 1956-10-02
Abstract: 866,097. Buildings. FOSTER, D. B. July 18, 1957 [Oct. 2, 1956; June 24, 1957], Nos. 30023/56 and 19802/57. Class 20(1) A prefabricated building comprises external walls of double skin construction, the skins 45, 47 consisting of panels, whose edges fit into spaced channels 106, 107 formed along the outer and inner edges of frame members 108 fabricated from sheet or strip metal and is characterised in that the exposed surfaces of the metal frame members are covered with strips 190 of a plastics material to reduce heat loss. Longitudinal ribs 191 on the outside of the strip are decorative whilst the ribs 192 on the inside space the strip from the frame. The strips fit around the frame member and are inclined at 194 to sealingly engage.the surface of a panel forming part of the skin 45. Modifications of the cover strip are described for fitting round the exposed flange of a base frame member and also the inner and outer surfaces of a corner upright frame member. The conductance of the metal frame members may be reduced by punching slots in the web portion thereof to increase the thermal path between the two channels.
Patent GB-1441871-A (GB)
Title: Photographic camera
IPC: G03B17/42
Filed: 1974-07-05
Abstract: 1441871 Coupled film advance and shutter cocking FUJI PHOTO FILM CO Ltd 5 July 1974 [24 July 1973] 30026/74 Heading G2A Manual rotation of a ratchet wheel 4 advances film having one aperture 1a per frame together with a film engagement lever 10 and a reciprocatory shutter actuating plate 5, lever 10 being spring- biased towards the film and pivotally and slidably mounted on plate 5 which is spring-biased in a direction opposite to film advance. On completion of film advance as shown, a pivotal lock lever 7 moves clockwise under a spring-bias to lock plate 5 (by engagement of corner 5e' of salient portion 5e with corner 7b) and wheel 4 (by engagement of detent portion 7a with wheel 4) and withdraw lever 10 from the film aperture (by engagement with a push portion 10d). On manual operation of a shutter button 13, lever 7 is rotated anticlockwise against its spring-bias, allowing spring- biased return movement of plate 5 to effect shutter operation (by contact of a flexible actuating arm 5h with the actuating end of a pivotal shutter 12) and prevent return movement of lever 7.
Patent GB-809196-A (GB)
Title: Improvements in and relating to textile twisting spindles
IPC: D01H7/16
Filed: 1955-10-20
Abstract: 809,196. Spindles, tube mounting means. ALGEMENE KUNSTZIJDE. UNIE N.V. Oct. 20, 1955 [Nov. 8, 1954; April 6, 1955], No. 30037/55. Classes 120(2) and 120(3) A twisting spindle having a member near the spindle drive for centring a tube on the spindle has said member 19 rigidly connected to the spindle 1 and provided with an annular groove 16 in which there is a resilient rubber ring 17 for holding the tube 12 placed on the spindle, the diameter of the ring being normally smaller than that of the centring member, and is characterized in that the centring member 19 is provided with a number of cavities 6 communicating with the annular groove 16, means being so placed in these cavities and within the rubber ring that they can freely move in a radial direction under the influence of centrifugal force to expand the rubber ring till it projects at least outside of the centring member but permits a free contraction of the rubber ring when the spindle is stationary. As shown the means for expanding the ring consist of swinging arms 23 having supplementary weights 26 at the lower ends.. Additional centring means of the same or conventional form may also be provided at the top of the spindle.
Patent GB-631080-A (GB)
Title: Improvements in or relating to vehicle brakes
IPC: F16D65/12
Filed: 1947-11-12
Abstract: 631,080. Brake discs. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Nov. 12, 1947, No. 30075. [Class 103 (i)] In a disc brake, particularly for aircraft, the discs comprise a series of circumferentially spaced friction members 1 secured together by axially-spaced arcuate plates 2 welded or riveted thereto at the edges as shown in Fig. 1. The plates 2 may instead be complete annuli, each member 1 then consisting of four superposed elements, two of which are sandwiched betweeh the plates 2. In another form, shown in Fig. 4, the disc consists of sets of axially interspaced segmental elements 9 and 10 riveted or welded together at their edges so as to leave passages for cooling air between them.
Patent GB-389767-A (GB)
Title: Improvements in brush holders for dynamo electric machines
IPC: H01R39/38
Filed: 1932-10-27
Abstract: 389,767. Brush - holders for dynamo - electric machines. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and WILSON, J. C., The Abbey, Great Haywood, Stafford. Oct. 27, 1932, No. 30112. [Class 35.] In a holder wherein a spring is pressed directly against the brush 9 by a plunger normally held by a pawl from which it may be released by partial rotation, the upper end of the spring bears against the closed upper end of the plunger. In the form shown, the plunger 2 which encloses the spring 6 has serrations 2a cooperating with a pawl 3 which is mounted on the upper face of the V-groove 1b of the guide 1a.
Patent GB-1519144-A (GB)
Title: Electronic fuel control for a gas turbine engine
IPC: F02C9/28
Filed: 1974-07-09
Abstract: 1519144 Automatic control of speed of gas turbines LUCAS INDUSTRIES Ltd 2 July 1975 [9 July 1974] 30315/74 Headings G3N and G3R A fuel control system for a gas turbine engine as described in the Specification 1519143 with the invention claimed relating to the provision of the further difference amplifier 33 supplied at its first input with a signal from the highest wins gate 34 which receives the fuel controlling output signal from amplifier 43 and the turbine actual speed signal. The signal at its second input consists of an attenuated turbine speed signal. Normally the output of amplifier 33 is proportional to turbine speed unless the speed transducer fails when the pressure of the signal from amplifier 43 will cause the engine to decelerate.
Patent GB-1498879-A (GB)
Title: Mycoplasma antigens
IPC: G01N33/569
Filed: 1976-07-16
Abstract: 1498879 Haemagglutinant from mycoplasma AGRICULTURE FISHERIES & FOOD MINISTER OF 16 July 1976 [18 July 1975] 30322/75 Heading G1B The invention is based upon the discovery that the cell-free culture medium from the growth of Mycoplasma possesses considerable HA antigenic activity, even in excess of that retained by the cells. Cells of the species Mycoplasma synoviae or Mycoplasma gallisepticum are grown in a broth overlay culture and cell-free supernatant liquid, constituting a haemagglutinating antigenic preparation for Mycoplasma, is recovered by centrifugation. The preparation is subsequently purified by dialysis against distilled water and freeze-dried. The separated cells may be used in the conventional manner to produce RSA antigen or further HI antigen. The presence in avian serum of antibodies to an organism of the genus Mycoplasma is detected by adding to the serum the reconstituted antigen preparation and a suspension of red blood cells, and observing the occurrence or absence of haemagglutination.
Patent GB-892341-A (GB)
Title: Fuel elements for nuclear fission reactors
IPC: G21C3/20
Filed: 1958-09-23
Abstract: 892,341. Nuclear reactors. DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT VORM. ROESSLER. Sept. 23, 1958 [Oct. 16, 1957], No. 30373/58. Class 39(4) A fuel element or breeding element for a nuclear reactor consists of one or more shaped elements comprising the monocarbide of uranium, plutonium, or thorium or a mixture of two or all of these monocarbides, and a corrosion-resistant and impervious protective can, wherein a layer is arranged between the can and the shaped element or elements, the layer being a thin layer of one or more carbides or silicides of uranium or of one of the elements of the 4th to 6th groups of the Periodic Table except hafnium and tantalum; if the layer is a carbide a metallic binder may be included, the metal being beryllium, magnesium, aluminium, silicon, titanium, vanadium, zirconium, niobium, molybdenum, bismuth, nickel, iron or chromium in amounts of 1 to 50% by weight, preferably 5 to 15%. Thin layers of the metals iron, nickel, beryllium, silicon, zinc, chromium, aluminium, titanium vanadium, zirconium, niobium, molybdenum or bismuth or an alloy of these metals can be applied with the carbide or silicide layer. Several layers may be superimposed, for example of carbide, silicide and metal.
Patent GB-967435-A (GB)
Title: Electroluminescent cell
IPC: H05B33/00
Filed: 1960-09-02
Abstract: <PICT:0967435/C4-C5/1> An electroluminescent panel comprises a dielectric substrate 14 having a transparent electrically conductive film 18 adhered to one side thereof, a layer 20 of electroluminescent material embedded in a transparent dielectric material and an electrically conductive layer 16, wherein the substrate 14 is formed of microsheet glass consisting of a thin flexible homogeneous glass sheet which is less than 0.025 inch thick.  Both layers 16 and 18 can be transparent and a second dielectric substrate 12 of microsheet glass can be provided.  One substrate can be thinner than the other and can be transparent. The area of the layer 20 of electroluminescent material can be smaller than the area of the conductive layers 16, 18 so as to define a channel 22 which can be filled with a dielectric potting material to render the panel watertight.  The dielectric potting material can be the same as that used in the electroluminescent layer 20.  The conductive coatings 16 and 18 can comprise oxides of Cd, In, Sn and/or Sb which may be mixed with an oxide of Cu, Zn, V, Cr, Mn or Co. Specification 748,683 is referred to.