baber/WOPTO huggingface dataset:
Patent GB-401374-A (GB)
Title: Improvements in or relating to toasting and like apparatus
IPC: A47J37/08
Filed: 1932-05-09
Abstract: 401,374. Toasting &c. apparatus. COSTA, F., 56, Elgin Mansions, Maida Vale, London. May 9, 1932, No. 13326. [Class 28 (i).] Toasting &c. apparatus adapted to be placed before a fire comprises a base member 2 provided with a stem to which is attached a flat member 5 symmetrically arranged with respect to the upper end of the stem and having a plurality of edges provided with projections 8 arranged to support a number of articles of food in positions equidistant from the centre of the flat member. The stem may comprise a tubular upright portion 1 attached to the base member 2 and a short tubular portion 6 attached to the fiat member 5, the two tubular portions being connected together by a rod 7 ; the member 5 may be rotated with respect to the base member so that when one side of the bread &c. is toasted the member 5 may be turned to present the other side to be toasted. The rod 7 may be straight or it may be curved so that the member 5 is inclined over the fire. The tubular portions 1, 6 may be clamped or screwed on the rod 7 so that the height of the member 5 may be adjusted. The member 5 may be stamped from sheet metal and may be of cruciform shape. The projections may be in the form of spaced triangular teeth in the plane of the member 5 or in a plane at rightangles thereto or in the form of short thin nails soldered to the member 5 or the edges of the member 5 may be serrated. According to the Provisional Specification the flat member may comprise two or more adjustable parts which may be arranged in parallel or other formation.
Patent GB-135128-A (GB)
IPC: E04B5/06
Abstract: 135,128. Marques, C. May 9, 1919. Floors of reinforced-concrete girders side by side; reinforced-concrete girders.-In floor of the kind formed by placing side by side reinforced-concrete beams of T section alternately upright and inverted, the upright or floor beams are given a greater bearing area at their ends by enlarging the full depth of the web towards the ends of the beam, as shown bv the lines g, h in Figs. 1 and 2. The flanges of the ceiling joists conform to this shape.
Patent GB-790478-A (GB)
Title: Improvements in or relating to a method and apparatus for producing shell mouldings
Inventor: BURLEY JOHN CHARLES
IPC: B22C23/00
Filed: 1954-05-10
Abstract: 790,478. Moulding-processes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 9, 1955 [May 10, 1954], No. 13514/54. Drawings to Specification. Class 83 (1). In a method of making shell-moulds at a single station, a stationary pattern, i.e. one not moving from station to station, and a plate shaped to conform to the contours of the pattern, form a cavity which is charged with mould-mix in powder form, and which, subsequently to charging, is heated to cure it whilst in the cavity. The pattern and plate may serve as dielectric-heating-electrodes, or may be heated by adjacent radiant-heaters. After charging, the mix may be compacted by moving the plate and pattern towards each other. The pattern may be made of sheet-metal or plastic and other non-metallic materials, with thin metallic coatings. Specification 756,550 is referred to.
Patent GB-135475-A (GB)
IPC: F41A3/74
Abstract: 135,475. Ludwig, J. N. Nov. 21, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Machine guns.- Relates to guns in which a gas-tight joint between the barrel l and the breech - bolt n is effected by providing the rear end of the barrel with a spigot b which engages a recess c in the breech bolt. According to the invention, the spigot is provided with a shoulder d that is pressed by the gases against the inside of the recess to effect the joint. In the form shown, the spigot is formed by boring a cylindrical recess in the rear end of the barrel, the front portion a of the recess being of annular formation and the breech-bolt being shaped to fit the recess.
Patent GB-1263195-A (GB)
Title: Clinical apparatus for testing fluid samples by optical means
IPC: A61B5/145
Filed: 1970-03-20
Abstract: 1,263,195. Photo-electric colorimeter; indicating apparatus. BAXTER LABORATORIES Inc. March 20, 1970 [March 21, 1969], No, 13557/70. Headings G1A and G1J. In a colorimetric apparatus for testing fluid samples in which a sample is placed between a radiation source and photo-detector 122 whose output is supplied to a meter 42 located in the housing 12, a replaceable transparent card or slide member 32 representing a particular test is slidable in the housing and has indicia 32A marked thereon which provide a scale for the said test. Each test has its corresponding card containing the relevant indicia, and each card has a notch cut into its lower surface(32b) Fig.2 (not shown). This notch is engageable with a cam member (68A) which positions in the radiation path a filter corresponding to the particular test. The test sample is contained in a test tube which is moved into position to surround a probe 22. This probe contains a light guide 50 conveying light from a source across a cut-out 119-120 defining the absorption path to the photocell 122. The filter arrangement containing the different filters is placed between the light source and the end of the guide. The detector circuitry Fig.6 (not shown) includes two calibration potentiometers (202, 204) for adjusting the meter reading when two calibration samples of known strength are employed in a particular test. A balancing network (214-218) is provided at the input to an operational amplifier (206) to compensate for variations in detector sensitivity.
Patent GB-991833-A (GB)
Title: Guiding device for wood milling machines
IPC: G09B23/18
Filed: 1963-04-05
Abstract: 991,833. Woodworking. K. REICH. April 5, 1963 [April 10, 1962], No. 13610/63. Heading B5L. radially of the cutter 3 in a holder 8 adjustably mounted on the housing 1 of the motor driving the spindle 2 of the cutter, the housing being carried on an arm 4 vertically adjustable to vary the axial position of the cutter on a plate 6 adapted to be mounted on the workpiece 14 which has a foil 15 having a projecting edge to be milled away. The resilient guide portion consists of a leaf-spring 11 secured by screw 18 to the member 10 and arranged to beat against the convex surface of the member when the stop device engages the edge of the workpiece, the outer contour of the spring then being aligned with the outer surface of the cutter so that the projecting edge 15 is trimmed flush with the edge of the workpiece.
Patent GB-488746-A (GB)
Title: Improvements in oil and water separators for exhaust steam pipes and the like
IPC: F22B37/26
Filed: 1937-05-14
Abstract: 488,746. Steam separators. VERMOHLEN, M. May 14, 1937, No. 13647. [Class 23] A steam separator for insertion in a pipe line a has an annular part b with an internal Venturi section, and with an annular recess c facing the incoming flow. The recess c communicates with the collector f of the separator by passages e at the sides of the tongue e<1> through which a duct g passes to an intermediate point of the Venturi section. An helical vane o is placed in the pipe in front of the separator and this causes the flowing gas to whirl so that liquid particles are thrown to the pipe wall and the recess. The flow of gas causes a suction effect on the duct g and this draws the liquid particles with some gas into the collector f from which the gas passes through the duct g. The liquid may be withdrawn through the opening i which is normally closed.
Patent GB-718462-A (GB)
Title: Improvements in aircraft structural elements and especially wings manufactured from reinforced concrete
IPC: B64C3/00
Filed: 1952-05-29
Abstract: 718,462. Aircraft wings. BREGUET, L. May 29, 1952 [July 9, 1951]. No. 13713/52. Class 4 An aircraft structural element, e.g. a wing, has the strength-conferring part constituted by separate members of pre-stressed concrete, interconnected by ribs and having its outer surface completed by light walls anchored to the pre-stressed members. As shown in Fig. 1, two pre-stressed concrete spars 2 and 3 each have a cross-section which is greatest where greatest bending moment occurs. They are connected by transverse ribs 14 bolted by flanges through the sides of the spars. An unbroken outer surface is provided by a sheet metal plate 5, bonded into the concrete by castellations 8 and 9 (Fig. 3), preferably having holes or bosses 8a or 9a. The trailing edge of member 2 is fitted with an angled strip of metal 20, similarly bonded. As an alternative, the sheet metal panel 5 and ribs 14 may be replaced by light concrete walls, in which case metal anchors 22 (Fig. 8) are bonded into the members 2 and 3 and into the light concrete walls. Light weight panels may be placed on the transverse ribs to act as a hollow core and the whole surrounded by a mould for casting such concrete walls. In a modification, members 2 and 3 may be in one piece near the root of the wing.
Patent GB-365454-A (GB)
Title: Means for cleaning the outside of sash-windows
IPC: A47L1/02
Filed: 1931-05-08
Abstract: 365,454. Cleaning windows. ATLASWERKE AKT.-GES., 16, Stephanikirchenweide, Bremen, Germany. May 8, 1931, No. 13714. Convention date, July 30, 1930. [Class 138 (i).] Means for cleaning the outside of vertically-movable sash windows is such that on the lowering of the window the surface to be cleaned frictionally engages a cleansing device which is inoperative while the window is being raised. In the arrangement shown in Fig. 2, a roller 3 covered with rubber, leather, or like material, is carried by a spindle 6 which at each end engages a slot 5 constructed so that its width increases in the direction towards the window 7. Upon the downward movement of the window it is cleaned by the roller 3, while upward movement renders the roller inoperative. In the construction shown in Fig. 3, a cleaning surface 9 is carried by a bar 8 connected to a lever 11 which is raised by hand to press the surface 9 against the window at the same time as the window is being lowered. On release the lever 11 drops by gravity so that the cleaning surface 9 is practically out of contact with the window.
Patent GB-583079-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K27/12
Filed: 1944-07-18
Abstract: 583,079. A.C. commutator machines. BRITISH THOMSON-HOUSTON CO., Ltd., and MAGGS, A. H. July 18, 1944, No. 13725. [Class 35] A variable speed A.C. commutator motor with short-circuited brushes has tapped field and compensating windings fed from a polyphase supply through a tap-changing switch, the light-running speed being proportional to the ratio of the number of field winding turns to the number of compensating winding turns. Fig. 1 shows an arrangement of stator windings for a two-phase supply, 4 being the compensating winding fed from phase 1 and having taps 7, 8, whilst 5 is the field winding fed from phase 2 and having a tapping 10, the machine having six speeds through the connection of combinations of the points 6, 7 or 8 with 9 or 10 and the neutral line 3. Fig. 2 (not shown) illustrates a method of energizing a 2-phase machine from a 3-phase supply. In a modification, Fig. 3, wound for 3-phase supply from lines 11, 12, 13, the vertical components of phases 25, 26 form the compensating winding, whilst the horizontal components of these phases, acting with phase 27, form the field winding. Phases 25, 26 are both tapped to correspond with Fig. 1 and selective connection of these taps with those on winding 27 produces six speeds as before. In this modification, progressive reduction of the taps on phases 25, 26 to increase the speed also reduces the effective field turns. In a modification, Fig. 5, designed to overcome this effect, the tapped parts of phases 25, 26 are interchanged so that reduction of the compensating turns simultaneously increases the effective field turns. Fig. 5 also shows a means of improving the power-factor of the machine by splitting the main portion of the winding 27 in the field axis in parts 49, 50 displaced by a small angle on each side of the field axis, each part being used for one direction of rotation. A small amount of brush shifting may be used to modify the speed range.
Patent GB-252542-A (GB)
Title: Improvements in floor and like coverings
IPC: D06N7/00
Filed: 1925-05-26
Abstract: 252,542. Ericsson, G., L. May 36, 1925. Fibrous plastic compositions.-A floor covering is made from a composition consisting of cleaned and dried peat or moss or both, and gelatine, glue, or the like, which may be treated with formaldehyde or alum. Glycerine, camphor, resins, oils, rubber, pitches, cement, sand, sawdust, &c. mav also be added. The composition may be applied to a foundation of paper, canvas, &c., or between two such sheets. Metallic reinforcement may also be employed. Reference has been directed by the Comptroller to Specifications 23325/92. [Class 140, Waterproof &c. fabrics] : 10585/94, 24680/97, 23388/00, 173,06, and 5270/09.
Patent GB-457593-A (GB)
Title: Improvements in or connected with roofing slabs
IPC: E04D11/00
Filed: 1936-05-15
Abstract: 457,593. Roofing-slabs. DIESPEKER & CO., Ltd., and RACKHAM, L. T., 57, Holborn Viaduct, London. May 15, 1936, No. 13799. [Classes 20 (iv) and 87 (i)] Slabs for covering asphalted and other roofs to provide an insulating air space and a flat surface for walking upon, are formed of a mixture of granulated cork and cement in any proportions and are provided with corner feet 1 which project beyond the adjacent edges to leave gaps 4. The feet are cast with the slabs and are of the same or other material. The top face of the slabs may be finished in terrazzo or other material 3. The slabs may be simply laid in place, or be bedded in any manner.
Patent GB-424247-A (GB)
Title: Electric heating device
IPC: H05B3/78
Filed: 1933-05-12
Abstract: 424,247. Heating by electricity. LOYSCH, K., Pielach, near Melk, Austria. May 12, 1933, No. 13845. Void [Abridged as open to inspection under Sect. 91 of the Acts, Nov. 14, 1933]. [Class 39 (iii)] In apparatus wherein the heating element is arranged in a metal enclosure, and the conducting leads are enclosed by a tube attached to the enclosure, an airtight joint is made at the outer ends of the tube. In an immersion heater 6, the joint is effected by means of a screwed fitting 2, a ring 4, and packing 3. The packing may be a cement. In a cooking plate the end of the tube is closed by an insulating plug of rubber, cement or the like, carrying the supply terminals. In the case of a vessel fitted with an external heater, the joint is made by a rubber or metal sleeve surrounding the supply leads and the tube. With a metal sleeve, the rubber covering of the supply leads is thickened in the region of the sleeve. The element enclosure may be filled with inert gas.
Patent GB-475190-A (GB)
Title: Improvements in or relating to frothing and the like apparatus
IPC: A47J43/07
Filed: 1936-05-16
Abstract: 475,190. Whisks or stirrers. DUNLOP RUBBER CO., Ltd., and BLACKMORE, H. May 16, 1936, No. 13895. [Class 86] A wire whisk or stirrer has auxiliary stirring means and means for anchoring the wires at the bottom. The anchorage consists of metal 10 cast round the ends 13 of the wires 11 which are turned over a ring 14, the anchorage being provided with impeller blades 19, and with a hardened steel stud 22 which rides on a stainless steel bearing track 21. The upper ends of the wires may be similarly anchored, the anchorage being secured to the sleeve 30 which is furnished with a straight driving slot 29.
Patent GB-238035-A (GB)
Title: Improvements in and relating to the moulding of hollow articles
IPC: B28B21/78
Filed: 1924-06-06
Abstract: 238,035. Proder, Soc. Anon., and Levy, M. June 6, 1924. Centrifugal machines.- Pipes and other hollow articles are moulded by spinning a fused composition containing a non-absorbent powder, such as ground quartz, coarse sand, broken stone, and hard pitch. A lining of this composition may ba similarly applied to pipes. Specifications 201,650, [Class 22, Cements &c.] ; 202,248; 228,257 and 217,010, [both in Class 22, Cements &c.], are referred to.
Patent GB-675068-A (GB)
Title: Photo mechanical printing plate
IPC: B41N1/10
Filed: 1950-06-03
Abstract: 675,068. Photo-mechanical printing-plates. ARCHER, T. I. June 3, 1950, No. 13924/50. Class 98 (ii). A stainless steel plate is degreased as with benzole cleaned as with water and whitening, treated by an anodizing process, washed, copper plated electrolytically in acidified copper sulphate solution, coated with bichromated fish glue, polyvinyl alcohol, albumen or gum arabic ; exposed under a negative, cleared as regards unexposed portions as by use of aqueous methyl violet solution in the case of fish glue, running water in the case of polyvinyl alcohol; calcium chloride solution acidified with lactic acid in the case of gum arabic; and running water after treating with a mixture of transfer ink and turpentine in the case of albumen; and is then etched with a solution of iron perchloride in water-free alcohol, rectified spirit or industrial methylated spirit to remove the copper background; the stencil then is removed as with water assisted with a soft scrubbing brush to leave a copper image which inks up lithographically. Specifications 451,009, 483,349, [Group XVI], 521,593, 564,753, 641,646, 654,717 and 662,708 are referred to.
Patent GB-746567-A (GB)
Title: Colour photographic processing
IPC: G03C7/42
Filed: 1954-05-12
Abstract: 746,567. Processing colour photographic elements. AGFA AKT.-GES. FUR PHOTOFABRIKATION. May 12,1954 [May 13,1953], No. 13941/54. 'Class 98 (2). Polyethylene oxide or a derivative thereof is used in conjunction with a specified bleaching and fixing bath for removing silver images from colour developed elements. The polyethylene oxide or derivative may be added to the emulsion during preparation thereof or to the emulsion layer by means of a preliminary bath, but is preferably added to the bleaching and fixing bath. Three examples specify baths comprising (1) the tetrasodium salt of ethylene diamine tetraacetic acid, ferric, chloride, sodium carbonate, sulphate and thiosulphate, and the reaction product of ethylene oxide with dimethylamine; (2) the ammonium salt of the complex ferric ethylene diamine tetraacetic acid, ammonium thiosulphate, sodium sulphite and the reaction product of lauric acid with ethylener oxide; (3) as (2) using the reaction product of trimethylol ,propane with ethylene oxide. Additionally to the examples the use of polyethylene oxide itself, reaction products of oleyl alcohol and of ammonia with ethylene oxide, and other derivatives indicated by structural formulµ is referred to; and further complex salts for the beaching-fixing bath are indicated with refer- - ence to further structural formulµ and to German Specification 866,605.
Patent GB-199709-A (GB)
Title: Improvements relating to a device for effecting a lateral tightening of the zone of contact between co-operating rollers of a roller mill
IPC: B02C4/28
Filed: 1923-05-26
Abstract: 199,709. B³hler, Geb. June 20, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Roller mills.-In a roller mill for liquid materials such as cocoa mass, tightening or packing plates are provided at the zone of contact at both ends of co-operating rollers and are so mounted as to be resilient longitudinally of the rollers, thus preventing squirting out of the materials at the ends of the rollers. As shown, a renewable plate 4 of any desired shape is secured by set-screws 5 to a member 6 which is situated' in a vertical slot of the frame upright 3 at each end of the rollers 1, 2 and is held in adjusted position by blocks 7. The member 6 is pressed towards the roller ends by a spring 9 in a boss in a cover-plate 8 screwed to the upright 3, the pressure of the spring being adjusted by a nipple 10 screwed into the boss.
Patent GB-326399-A (GB)
Title: Improvements in the application of mudguards to perambulators and the like
IPC: B62B9/16
Filed: 1929-05-06
Abstract: 326,399. Wasdell, E. C. May 6, 1929. Mudguards.-In mudguards for perambulators, juvenile motor-cars, &c., of the type in which the mudguard stays c, d are detachably secured to the axle e of the vehicle by a centre bracket f provided with a hinged clamping-strap h, the strap h, of U-section, is pivoted to an extension of one of the stays c and is secured by a bolt g. The centre bracket f has substantially semicircular sides, while in section it is of a. deep, narrow U-shape, wide enough at the bottom to accommodate the head of the bolt g but narrow at the top, tightly gripping the strip metal stays c, d. The bolt g cannot rotate but is capable of a slight swinging movement.
Patent GB-696003-A (GB)
Title: Improvements in the chlorinating roasting of materials containing copper or zinc or both
Filed: 1951-06-13
Abstract: In the chlorinating-roasting of materials containing copper and/or zinc in addition to sulphur in admixture with rock salt or other natural chloride salts, e.g. potassium chloride-magnesium chloride, or potassium chloride-sodium chloride-magnesium sulphate, by treatment with oxygen-containing gases, in particular air, the gases, preheated if necessary, are passed through the mixture to be roasted, advantageously in a layer having a height of less than 1.5 metres in the quiescent state at such a speed that the particles are maintained in random turbulent motion; fresh material is supplied to, and roasted material is withdrawn from, the layer continuously or periodically.  The process is suitably applied to iron pyrites roasted by the turbulent layer method, the material after being mixed with chloride, being supplied at elevated temperature to the chloridizing roast.  The gas pressure employed is usually less than 2 metres water column.  Unroasted pyrites may be added to bring the sulphur content to say 5-6 per cent.  A roasting temperature of 400-700 DEG C is specified.
Patent GB-450592-A (GB)
Title: Process for the manufacture of polymerisation products of olefines
IPC: C07C2/26
Filed: 1934-12-20
Abstract: Olefines are polymerized in the presence of an acid ester of an acid of phosphorus such as monocresyl phosphate.  The olefines may be dilute.  In an example, propylene is passed into monocresyl phosphate at 180--200 DEG  C. and 30 atmospheres pressure. Specification 340,513 is referred to.
Patent GB-832560-A (GB)
Title: Improvements relating to self-priming centrifugal pumps
Inventor: CLEMENTS ALFRED JAMES
IPC: F04D9/02
Filed: 1957-05-03
Abstract: 832,560. Centrifugal pumps. RHODES, BRYDON & YOUATT Ltd. April 25, 1958 [May 3, 1957], No. 14133/57. Class 110 (1). A self-priming centrifugal pump comprises an aperture g extending between the suction and delivery sides of the impeller f at a level adjacent to the top of the impeller. Normal delivery from the impeller prevents by ejector action, flow through the aperture g to the suction side of the impeller, but after the impeller comes to rest, air eventually flows through the aperture g from the delivery to the suction side to break the syphon and retain a sufficient volume of liquid in the pump to prime it.