baber/WOPTO huggingface dataset:
Patent GB-1346620-A (GB)
Title: Motion picture apparatus for advancing and exposing film one frame at a time
IPC: G03B21/50
Filed: 1971-05-12
Abstract: 1346620 Cine camera EASTMAN KODAK CO 12 May 1971 [18 May 1970] 14533/71 Heading G2E A cine camera for taking single frame exposures includes a motor 16 driving gear 34 which tensions spring 60 whose ends 60a, 60b are attached to lugs 42, 59 respectively. When the spring 60 reaches a predetermined tension, ridge 36, on gear 34, can contact retaining flap 50 which holds gear 48 stationary against the action of the tensioned spring 60. The ridge 36 therefore lifts the flap 50 out of engagement with the projection 57 and the gear 48 rotates through half a revolution under the action of the opening 60 causing the disc shutter 24 to expose the film 28. The flap 50 then engages projection 64 to prevent the gear oscillating under the weakened spring driving force. However if the opening 60 is still sufficiently tensioned the gear 48 completes its revolution and advances the film by one frame by means of the claw mechanism 56 which is controlled by camming surface 44 for displacing the claw 56 along the film 28 and a second camming surface 48a for applying withdrawing the claw 56. If the spring 60 is not sufficiently tensioned lug 42 abuts the lug 59 and drives the gear through this second half of its revolution. The motor 16 operates on receiving pulses from a timing circuit which is activated by the output of an RF receiver.
Patent GB-235209-A (GB)
Title: Improvements in or relating to the manufacture of photographic emulsions
IPC: G03C1/10
Filed: 1925-06-05
Abstract: A sensitizing material is extracted from organic material, such as organic tissues yielding gelatine or gelatine derived therefrom, and has the property, even in minute quantities, of enhancing the sensitivity and properties of photographic emulsions of various kinds.  To obtain the sensitizing material, gelatine obtained from organic tissues has added thereto water at a moderate temperature and in moderate excess over the amount absorbed by the gelatine to swell it at the working temperature. This is allowed to stand for two or three days, or longer if necessary, and evaporation prevented. Harmful bacterial action is prevented by adding phenol, and agitation is desirable, as by vigorous shaking at intervals.  The excess watery solution, often viscous, is poured off and an improved yield is obtained by pressing some of the liquid out of the gelatine as by centrifuging it.  This liquid constitutes the sensitizing material, but it can be concentrated by evaporation to a paste, or even substantially dry material.  Some breakdown products may be in the material but they are free from unhydrolized gelatine.  The residue after evaporation may be taken up in water again, and bacterial action may be prevented by a little phenol.  The treatment of the raw product (e.g. gelatine) may be repeated until the sensitizing material is wholly extracted.
Patent GB-544851-A (GB)
Title: Improvements in and relating to buildings such as silos, chimneys, summerhouses, andthe like
IPC: E04H7/28
Filed: 1940-09-28
Abstract: 544,851. Silos ; chimneys ; summer-houses. GIBSON, E., and PREMIER ARTIFICIAL STONE CO., Ltd. Sept. 28, 1940, No. 14681. [Classes 20 (i), 20 (iv) and 25] Silos, chimneys, and summer-houses are formed from pre-fabricated concrete slabs, each slab having a headed projection on opposed edges and the adjacent edges of the slabs abutting and being locked by cover plates which engage the headed projections. The building may be polygonal, circular or rectangular in plan. As shown in Fig. 2, the slabs 20 are provided on two opposed edges with angle-shaped projections, which projections on the edges of adjacent slabs abut at 19 and are engaged by T-shaped recesses in locking members 22. The angle shaped projections may have tapered inner surfaces, and for a corner, the edge of one slab abuts on the face of the adjacent slab and the slabs are locked together by an L-shaped locking member 23. For a polygonal structure the abutting edges of the slabs are disposed at an angle to the respective verticals to the faces of the slabs and the outer faces of the locking members are ridged. A doorway 15 is constructed by shaped blocks 18 forming the posts, and a sill and lintel 16 and 14 respectively, locking at their ends with the edges of the slabs adjacent to the door opening.
Patent GB-1057564-A (GB)
Title: Sulphur- and chlorine-containing e.p. additives for lubricants
IPC: C08F8/12
Filed: 1964-04-09
Abstract: Lubricating compositions comprise a mineral or synthetic lubricating base oil containing a minor proportion of a sulphur- and chlorine-containing compound obtained by treating an olefinic compound with SOCl2 in the presence of a Friedel-Crafts catalyst (see Division C2).ALSO:Sulphur- and chlorine-containing compounds are obtained by reacting an olefinic hydrocarbon or oxygen-containing compound (such as an ester, ether or ketone) with thionyl chloride in the presence of a Friedel-Crafts catalyst at 50 DEG  C. to - 50 DEG C., using 0.1-10 moles of organic compound per mole of SOCl2 and a molar amount of SOCl2 which is not less than the molar amount of the Friedel-Crafts catalyst.  Examples use octene-1 and butyl oleate. The products are suitable as oil additives (see Division C5).
Patent GB-580084-A (GB)
Title: Anti-coagulant bis(4-hydroxycoumarins) and process for making the same
Inventor: CAMPBELL HAROLD ALEXANDER
IPC: C07D311/48
Filed: 1942-10-20
Abstract: Substantially pure bis(4-hydroxycoumarins) having the general formula <FORM:0580084/IV/1> where R represents an aliphatic or aromatic hydrocarbon group or an ether substituted aromatic hydrocarbon group which with a -CHO group forms an aldehyde, and R1 represents hydrogen, an alkali metal, an equivalent of an alkaline earth metal, ammonium or substituted ammonium are prepared by reacting substantially pure 4-hydroxycoumarin with a substantially pure aldehyde of the formula RCHO.  The compounds are anticoagulants for blood in man and mammals.  Salts of the compounds have the same physiological action.  The reaction takes place by boiling the reactants together in alcohol or dioxan solution and the compounds may be purified by recrystallisation.  Compounds mentioned as being prepared by the process of this invention include 3 : 31 - ethylidene - bis(4-hydroxycoumarin), 3 : 31 - propylidene - bis(4 - hydroxycoumarin), 3 : 31 - butylidene - bis(4 - hydroxycoumarin), 3 : 31 - isobutylidene - bis(4 - hydroxycoumarin), 3 : 31 - pentylidene - bis (4-hydroxycoumarin), 3 : 31-isopentylidene-bis (4-hydroxycoumarin), 3 : 31-hexylidene-bis(4-hydroxycoumarin), 3 : 31 - benzylidene - bis(4 - hydroxycoumarin), 3 : 31-(2-phenylethylidene)-bis(4 - hydroxycoumarin), 3 : 31 -(3 - phenyl - propylidene) - bis(4 - hydroxycoumarin), 3 : 31 - (4 - methoxybenzylidene - bis(4 - hydroxycoumarin), 3 : 31 - (3 : 4 - methylenedioxobenzylidene)-bis(4-hydroxycoumarin).  All the above compounds form both normal and acid salts.  The aqueous solutions of the compounds are unstable and darken on exposure, but can be rendered more stable by the addition of a small amount of sodium sulphite.  The Specification as open to inspection under Sect. 91 includes also the preparation of 3 : 31-(3 - hydroxy - 4 - methoxybenzylidene) - bis(4 - hydroxycoumarin), 3 : 31-(2-ethoxyethylidene)-bis(4 - hydroxycoumarin), and 3 : 31 - carboxymethylene - bis(4 - hydroxycoumarin).  This subject-matter does not appear in the Specification as accepted.
Patent GB-149487-A (GB)
Title: Improvements in and in connection with yarn winding machines
IPC: B65H63/06
Filed: 1919-06-11
Abstract: 149,487. Stubbs, J. H., and Stubbs, Ltd., J. June 11, 1919. Clearing-apparatus.-In clearing-apparatus for yarn-winding machines of the kind wherein the yarn passes through a slit between two plates, of which one is fixed and the other adjustable, the fixed plate e is provided with extensions o which overlap the joints between the plates, in order to prevent the yarn being passed otherwise than through the clearing-slit. The upper face of one of the plates is shaped as shown at m, n, to guide the yarn towards the slit k.
Patent GB-735042-A (GB)
Title: Improvements in or relating to display devices
Inventor: FRYDBERG SWIETOSLAW
IPC: G09F11/34
Filed: 1952-06-11
Abstract: 735,042. Moving display devices. ROTOSIGNS, Ltd. June 10, 1953 [June 11, 1952], No. 14715/52. Class 3 (1). [Also in Group XXXV] A moving advertising or display device comprises a frame 1 made of metal tubing which has a solenoid in one of its vertical limbs, the solenoid consisting of two oppositely wound coils 7, 8. The coils are connected to a D.C. supply through a thermally-operated, bimetallic, changeover switch so that they are connected to the supply alternately. The conductors 4-6 for the solenoid are concealed on a suspension cord 2 for the frame. Pivotably mounted on the frame on its centre line is a panel 9 or skeleton framework carrying display material and this has permanent magnets 11, 12 built into its two opposite vertical edges, the magnets being concealed by a binding 13. The magnets are arranged with their polarities oppositely directed so that when one is attracted by the solenoid the other is repelled, and thus as the polarity of the solenoid is changed by the switch, the panel swings through substantially 180 degrees. It is prevented from moving completely into the plane of the frame 1 by rubber rings 23 on the frame. In an alternative construction two solenoids and one magnet may be used.
Patent GB-296475-A (GB)
Title: Improvements in or relating to remote radio control devices
IPC: H04W99/00
Filed: 1927-06-01
Abstract: 296,475. Blinkhorn, A. B. June 1, 1927. Selectors.-In a remote radio-control device for fog-signal guns and the like, an electricallyactuated contact device is provided adapted to make contact a plurality of times each time it is actuated. The Figure shows the application to a control apparatus of the kind described in Specification 273,811 in which the automaticallyfunctioning actuating device comprises contacts K1, K2 adapted to be closed unless restrained by the receipt of the predetermined signal. A restraining signal closes contacts L1, L2 energizing electromagnet I to oscillate a balance wheel G carrying the armature H closing contacts E1 a number of times and energizing an electromagnet A sufficiently to ensure the return of the normally friction-driven arm D to zero.
Patent GB-696632-A (GB)
Title: Improvements in or relating to non-continuous photographic contact printing machines
IPC: G03B27/22
Filed: 1949-06-01
Abstract: 696,632. Photographic contact-printing apparatus. NIG MANUFACTURING CO., Ltd., and JACOBS, R. S. Sept. 1, 1950 [June 1, 1949], No. 14759/49. Class 98 (ii). A non-continuous contact printer having a curved transparent working surface covering the printing lamp and on which surface original and printing paper are held by a tensioned flexible blanket and wherein a movable shutter is adapted in one position to obscure the printing light and in the other to allow this light to fall on the concave face of the working surface, is characterized in that the movement of the shutter is controlled by a handle, a portion of which extends transversely across and outside the curved surface and, when the shutter is operated, sweeps out a curved area outside and spaced from said curved surface, said handle portion in the " shutter closed " position being disposed to lie above the blanket anchorage to serve as a rest bar over which the blanket may be hung. As shown, a part-cylindrical glass support 6 is secured to the front of an internally white-painted box with metal panels 3, 4 by means of metal strips, and the opaque blanket 8 for holding a negative and a lightsensitive sheet on the support is secured at one end to the top member of a frame including pivotally mounted members 11 urged clockwise by springs 14 and at the other is attached to a strip 9 by attachment of which in the position 9<SP>1</SP> the blanket is located over the support 6 and is held in tension by the springs 14. To release the blanket tension, the pedal 13 is depressed overcoming the spring 14, allowing the blanket to be undone. Between the support 6 and a row of tubular lamps 7 are arranged self-aligning guides 15 for a shutter plate 17 having counterbalancing springs 25 and supported by a cable 21 passing over pulleys 20 carried by arms 18 of pivoted bell-crank levers whose other arms are connected to a bar 24 which is moved to raise or lower the shutter. When the shutter is in the closed position shown, the bar 24 serves as a rest for the released blanket. Specifications 696;633 and 696,634 are referred to.
Patent GB-654775-A (GB)
Title: Puff iron
IPC: D06F81/08
Filed: 1948-06-01
Abstract: 654,775. Ironing. SCIENTIFIC ENGINEERING & MANUFACTURING CO. June 1, 1948, No. 14791. Convention date, June 3, 1947. [Class 138 (ii)] A puff iron for steaming and blocking portions of garments comprises a cast metal puffer block 19 whose surface is provided with relatively large and widely spaced perforations 18 through which steam supplied to the block issues, and a sheet metal cap 40 fitting down over the block with its crown spaced from the surface thereof, the cap having relatively fine and closely spaced perforations 42 throughout its crown to produce a uniform cloud-like dispersion of steam and uniform steaming and blocking of the garment. The cap may be spaced from the block 19 by indentations 43 and/or a wire screen 44 which assists in the formation of the cloud-like dispersion of steam. The perforations in the cap may be formed by punching and the burrs caused thereby are located on the inside of the cap and serve to hold the screen 44 in place. A coil spring 45 secured at its ends to the edges of the cap is passed around the lower part of the block and holds the cap in place thereon. The block 19 is divided into two compartments 16, 17 by a partition 15 and steam supplied through a pipe 11 to the lower compartment 16 may be admitted to the upper one 17 by means of a valve 20 operated by a rod 22 and foot pedal (not shown). Suction may be applied to the upper compartment through a pipe 12 and pedal operated valve 24. Pipes 11 and 12 may be covered with asbestos and surrounded by a pipe 29 to heat insulate them. The Specification as open to inspection under Sect. 91 comprises also a modification, Fig. 5 (Cancelled), in which the perforated wall 19 is omitted and replaced by a finely perforated cap 50 secured at its periphery to a lower cast head 52. The cap 50 fits into a peripheral seat 51 and is secured by screws 53 with the interposition of a sealing gasket 54. This subject-matter does not appear in the Specification as accepted.
Patent GB-553599-A (GB)
Title: Improvements in the production of branched chain alkanes
IPC: C07C5/27
Filed: 1940-10-02
Abstract: 553,599. Isomerisation of normal alkanes. ANGLO - IRANIAN OIL CO., Ltd., and FAWCETT, E. W. M. Oct. 2, 1940, No. 14799. [Class 2 (iii)] In the liquid - phase isomerization of normal alkanes by means of an aluminium halide catalyst, the feedstock is saturated with the catalyst before admission to the reaction chamber containing the bulk of the catalyst ; this is ensured by separating the isoalkane product in a fractionator and recycling the unreacted normal alkane, which contains the dissolved and entrained catalyst, together with fresh normal alkane. The reaction is effected at temperatures of 50-150‹C. and pressures of 10-100 atmospheres, and an activating agent, such as hydrogen chloride or water, may be present. Examples are given of the conversion of n-butane into isobutane, and mention is made of the production of isopentane and isobutane from n - pentane. Specification 535,394 is referred to.
Patent GB-389678-A (GB)
Title: A device for protecting and reinforcing travelling trunks and the like
IPC: A45C13/36
Filed: 1932-05-25
Abstract: 389,678. Packing-cases. BRAUN, L., 7A, Brondesbury Villas, Kilburn, London. May 25, 1932, No. 14851. [Class 18.] A device for protecting an article such as a packing-case or trunk comprises a rectangular tubular portion, to fit closely around the article and composed of four sections 1 .. 4 hinged to one another along three edges as at 5, the two adjacent free sections being removably fastened together along the remaining edge, and end-pieces 10 pressed against projections 11 at the ends of the tubular portion solely by the enclosed article. The sections may be of plywood strengthened by metal bands or of spaced wooden slats secured together by metal crosspieces 6 which are hinged to one another either by interfitting rolled over portions surrounding a pintle or by a hook-like member on one crosspiece engaging in an aperture in another. The sections 1, 4 may be secured at their edges by slotted hasps 8 engaging over projecting eyelets 7, a metal rod 9 then passing through the eyelets, and being secured by a padlock. The endpieces 10 may be hinged along one edge or may be loose. A recess may be provided on one section to accommodate the handle of the trunk or like article to be packed. A handle may be provided on one or each section. When not in use the device may be folded to the form shown in Fig. 3. Each section may be lined with waterproof material or the packed article may first be enclosed in waterproof material.
Patent GB-296717-A (GB)
Title: Improvements in screw propellers
IPC: B63H1/12
Filed: 1927-06-02
Abstract: 296,717. Stone & Co., Ltd., J., and Lyth, C. J. June 2, 1927. Screw propellers of the normal kind with blades of constant pitch and curved leading and trailing edges are designed with the axis of bending midway between the front and rear faces of the blade sections, each section being symmetrical or of reversed symmetry. Instead of the whole of the blade having such sections, only the inner half may be of this form and the outer half formed as usual. As an example of symmetrical forms, shapes in Figs. 3, 5, and 6 are used. For reversed symmetry the section as in Fig. 4 is employed.
Patent GB-1381858-A (GB)
Title: Full-wave rectifier assemblies
IPC: H01L25/03
Filed: 1971-05-13
Abstract: 1381858 Vehicle rectifiers JOSEPH LUCAS (INDUSTRIES) Ltd 23 March 1972 [13 May 1971] 14856/71 Heading H1K The three-phase bridge rectifier shown is provided with an insuating hydrophobic coating 42 (a silicone resin) on the insulator 35 most exposed to the potential accumulation of slush from salted icy roads. Tracking and insulation failure are thereby prevented. The treatment may be given to a similarly constructed single phase bridge rectifier.
Patent GB-528980-A (GB)
Title: Improvements in or relating to the manufacture of metal beams and the like sections
IPC: B23K33/00
Filed: 1939-05-18
Abstract: 528,980. Making girders &c. DORMAN, LONG & CO., Ltd., and MITCHELL, P. May 18, 1939, No. 14863. [Classes 83 (i), 83 (ii) and 83 (iv)] Uniting by fusion : casting composite articles.-In making a welded T-joint in the manufacture of constructional sections such as T or I beams, girders &c. a channel is formed between the adjacent edge of a web plate and the face of a flange plate into which is introduced a welding rod whereby the joint may be completed in one welding run from one side of the web. The web b may be formed at one edge with a groove f leaving a thin portion g in abutment with the flange a so as to provide a channel h. The parts a, b are arranged at such an angle that the face of the upper fillet weld is in a horizontal plane A. A removable backing block i of copper or like with a chamfered or like corner m is placed between the rearside of the web and the face d of the flange so that the upper and lower fillets o, r, Fig. 2, are equal and symmetrical. Welding is preferably effected by the electric arc, the welding rod n, bottom of web and flange face d being melted so as to complete the joint. A web with a grooved edge may be replaced by a web with a chamfered edge. In another form a square end c on the web may be supported on the block i at a distance from the face d of the flange, the base of the barrel h being formed by a thin strip of steel t so as to prevent the arc striking the copper backing block. The backing block may be of the same length as the plates or may comprise a short block moved along the joint during welding.
Patent GB-726741-A (GB)
Title: Improvements in or relating to processes and apparatus for carrying out measurementsin connection with gases
IPC: G01N27/62
Filed: 1953-05-28
Abstract: 726,741. Electric tests. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. May 28, 1953 [May 28, 1952], No. 14926/53. Class 37. [Also in Group XXXVIII] Apparatus for determining the concentration of dust, smoke or mist in a gas comprises an analysis tube 1 (Fig. 1) through which the gas is passed, the tube containing a central platinum wire 4, and a cylindrical platinum wire mesh 5 on the inner surface of the tube, a high voltage being applied to the central electrode, measured by a voltmeter 7 (Fig. 2), and the voltage increased until the current flow between the electrodes 4, 5, as shown on a microammeter 9, becomes constant, the voltmeter and/or microammeter reading being indicative of the concentration of dust &c. in the gas. Variations in the slope of current/ voltage curve may be used to indicate the presence of and identifying different types of dust. The H.T. supply is obtained from a saw-tooth generator valve 10 (Fig. 3) whose frequency is adjustable by resistor 12 between grid and cathode. The tops of the waves are cut off by a biased valve 13 to give a series of pulses of high voltage, whose amplitude is controlled by a variable resistor 16, and is rectified by three valves 17, 18, 19 to give voltage trebling. The apparatus may also be used for : (a) the removal of solid particle suspensions from a gas to enable detailed chemical analysis of the gas and/or the particles to be made; (b) the determination of the moisture content of a gas by passing the dust-freed gas into fuming sulphuric acid of known concentration to produce a mist, which may be measured with the analysis tube of the invention, and whose concentration is indicative of the moisture content of the gas ; (c) the determination of the rate of flow of a gas by passing it through fuming sulphuric acid and two analysis tubes in series, the downstream tube being supplied with voltage to remove the mist formed by the sulphuric acid. At a given time the up-stream analysis tube is operated to remove the mist, and the delay before the down-stream tube indicates the absence of mist on arrival gives the time taken for the gas to travel the distance between the two tubes. The delay may be determined electrically by noting the charge on a condenser in the time between the application of voltage to the upstream tube, and cessation of current in the downstream tube. The mist may be initially electrified by passing the gas through a third analysis tube fed with H.T. pulses.