baber/WOPTO huggingface dataset:
Patent GB-450859-A (GB)
Title: Arrangement for producing a bundle of light composed of parallel rays
IPC: G02F1/07
Filed: 1935-01-24
Abstract: 450,859. Optical sound - recording apparatus. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Germany. Jan. 24, 1935, No. 2350. Convention date, Jan. 26, 1934. [Class 40 (ii)] [See also Groups XX and XL] A device to be used in conjunction with a source of light for obtaining a bundle of parallel rays consists of a diaphragm or selector which shuts out all rays of light of which the inclination to the optical axis exceeds a certain small value. The diaphragm may, as shown in Fig. 1, consist of two series of thin parallel plates intersecting each other at right-angles, the light being passed through the passages between the sheets and the walls of the passages being blackened. The two sets of plates may be in two separate units through which the light passes in succession, the plates of one unit being disposed at right-angles to those of the other. Alternatively, the diaphragm may be made of a number of thin glass layers separated from each other by blackened surfaces and having polished end faces. In another form the diaphragm consists of a number of coaxial tubes. The device is particularly intended for use in a light-controlling arrangement employing a Kerr cell or piezo-electric crystal, for sound-recording &c. When a piezo-electric crystal cell is used, the diaphragm may be combined directly with the cell by making the cell of a number of layers separated by opaque surfaces. Fig. 6 shows an arrangement including a Kerr cell, designed to occupy a relatively small space when using a long focus condenser, the arrangement including two right-angled prisms 11, 12 made of doubly-refracting material so that they act respectively as polarizer and analyzer. The diaphragm 3 is placed between the condenser 2 and the prism 11 and the Kerr cell 5 is disposed between the prisms 11, 12. The rays leaving the prism 12 are received by a cylindrical lens which focuses them on a slit diaphragm 8 which is imaged by a lens 9 on the image surface 13 which may be a film reel for sound recording.
Patent GB-309250-A (GB)
Title: Improvements in or relating to apparatus for drying materials
IPC: F26B17/28
Filed: 1928-01-25
Abstract: 309,250. Anglo Pencil Co., Ltd., and Smith, M. Jan. 25, 1928. Film evaporators.-In apparatus for drying materials of the type embodying an internally heated drum or cylinder on the exterior of which the material is fed in a wet, viscous or plastic state. the drum and the feeding means are subjected to relative movement whereby the material is fed thereon progressively and in a spiral course, and is subsequently automatically removed. A feed. hopper 2 is traversed on rods 3 over the surface of a hollow rotating cylinder 1 by the rotation of an externally screw threaded ,spindle 5 which meshes with an internally screw threaded nut 6 rotatably carried in a bracket 8 extending laterally from the hopper. A scraper 9 is mounted to travel with the hopper but in advance thereof so as to remove the spiral coating laid on the cylinder in the last preceding motion. On reaching the end of the drum the hopper is rapidly returned to its starting position by the action of a pair of loosely mounted pulleys 10, 11 having between them a clutch 12 slidable on a key by a shaft, the pulley 10 being driven by a belt 14<a> from a central shaft 13 while the pulley 11 is driven in the opposite direction by a belt 15<a>. The return motion of the hopper is thus obtained by direct drive of the pulley 16 and clutch 18 on the shaft 5 while the forward motion is obtained by indirect drive through the shaft 7. Automatic reversal of the drive is obtained by an arm 20 on the hopper displacing a lever 19 connected to the clutches 12, 18 and the scraper is simultaneously displaced from the drum by a fixed bracket 27 displacing a conical member 25 and causing a larger diameter of the member 25 to bear on the underside of the scraper arm 24. The feed of material from the hopper is also cut off on the return movement by a. pivoted bell crank lever 29 carrying a closure device 30. Alteration of the size of the hopper mouth is obtained by mounting one end wall 35 adjustably on the rods 3. The dried material removed from the drum is received in a trough 36 provided with a conveyer 37. Steam for heating the drum is introduced through the hollow shaft 13. In an alternative arrangement the cylinder 1 may be fixed and the feeding means with scraper rotated spirally around same.
Patent GB-194486-A (GB)
Title: Improved fastener for motor cycle belts
IPC: B62M9/10
Filed: 1922-01-26
Abstract: 194,486. Foster, C. Jan. 26, 1922. Belt fastenings.-A fastening for motor-cycle belts comprises a pair of U-shaped end pieces a and a connecting link consisting of two rollers d with reduced ends connected together by a pair of taper steel side plates e secured on the reduced parts by splaying or riveting the ends thereof. Leather buffers or protecting pieces f are frictionally secured to the side plates e by the insertion of snap-head rivets g into axial holes bored through the rollers. The rollers bear in the bent end of the U-shaped members and are enclosed by back caps b with lugs b<1> engaging holes in the U-shaped members. The U-shaped members may be bent to suit the curvature of the pulley.
Patent GB-881876-A (GB)
Title: High density magnetic recording tape
IPC: G11B5/70
Filed: 1959-01-22
Abstract: 881,876. Magnetic compositions. INTERNATIONAL BUSINESS MACHINES CORPORATION. Jan. 22, 1959 [Jan. 23, 1958], No. 2486/59. Class 38 (2). A magnetic recording member, e.g. a tape, has a coating comprising cobalt iron ferrite having the formula CoxFe 3 -xO 4 , where x is from 0.04-0.30. A mixture of cobalt oxide and magnetite is sintered in air at 1000-1500‹ C., ground to a size of 1 micron, mixed with a binder e.g. polyvinyl chloride, ground for 14 days in a ball mill or 2 days in an attritor, and coated on to a backing material e.g. a film of insulating tape of thickness 1.5 mils. The coating may be 0.13 or 0.33 mil. in thickness and have the formula CO 0 . 15 Fe 2 . 85 O 4 .
Patent GB-470808-A (GB)
Title: Improvements in photographic processing baths and compositions therefor
IPC: G03C5/38
Filed: 1937-01-28
Abstract: Acid sodium acetate, NaC2H3O2.HC2H3O2, is prepared by heating anhydrous sodium acetate with the equivalent quantity of glacial acetic acid until the former has completely dissolved, cooling, crystallizing, and drying for 4 to 8 hours at 30 DEG C. Di-acid sodium acetate, NaC2H3O2. 2HC2H3O2, is prepared similarly by using twice the amount of glacial acetic acid.
Patent GB-1157239-A (GB)
Title: A Continuous Method of Manufacturing Thermally Insulated Pipes
IPC: B29C48/09
Filed: 1968-01-17
Abstract: 1,157,239. Thermally insulated pipes. KABELUND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 17 Jan., 1968 [17 Jan., 1967], No. 2523/68. Heading F2P. A continuous method of manufacturing a thermally insulated pipe constituted by an inner tube 1 insulated with a plastics material and having an outer sheath, comprises applying a self-foaming plastics material to a foil 2 of metallic or non-metallic material at least partly surrounding the inner tube, forming the foil into a tube co-axially around the inner tube, expanding the plastics material to fill the space between the foil and said inner tube, and applying an outer sheath 7 to the thermally insulated tube. The foil may be made of polyteraphalic ester, or of polycarbonate, alternatively it may consist of a laminated metal foil or, of an aluminium foil laminated with polyvinyl chloride. The self-foaming plastics preferably consists of a polyurethane, and the outer sheath may be formed by an extrusion of polyvinyl chloride or, by a sheath of metal which may be in the form of longitudinally or helically, applied bands. As shown the foamable plastics material is applied, in drop form from a nozzle 4, to the foil 3 at a position before the latter completely surrounds the tube 1 and enters a guide and expansion tube 5 in which the foamable plastics material is expanded. A plastics sheath 7 is applied by means of an extruder 6, the expansion tube being adjusted to a predetermined temperature.
Patent GB-213716-A (GB)
Title: Improvements in and relating to flow meters
IPC: G01F1/28
Filed: 1923-01-27
Abstract: 213,716. Bonn, C. R. H. Jan. 27,1923. Flow meters, pressureactuated.-A fluid flow meter comprises a turbine wheel 1, Fig. 2, carrying an indicating pointer 3 and adapted to be rotated to a varying extent against the action of a spring 5, a damping vane 14 being provided, if desired. The vanes may be formed by undercut or other grooves 15, Fig. 5, and the nozzle 21, Fig. 4, is preferably of the converging-diverging type, with its exit shaped to conform to the curvature of the turbine wheel and large enough to cover several grooves. The faces 31, Fig. 6, of the wheel may be countersunk to provide sharp edges 32, and a surrounding casing 30 with sharp edges 33 may be employed.
Patent GB-158825-A (GB)
Title: Improvements in rinforced concrete structures
IPC: E04H12/12
Filed: 1921-01-19
Abstract: 158,825. Leroy, J. Feb. 14, 1920, [Convention date]. Joist floors; reinforced block-work girders; roofs. -Reinforced concrete structures such as girders, bridges, floors, and masts or posts for electric lines are built up of preformed portions or lengths reinforced by tubes 2 and connected together by bolts 13 in the webs and by bars 8 passed through the tubes. The joints and tubes are grouted with cement, and vent holes or inspection openings 11 indicate the distribution of the cement. Short bars 6 may replace the long bars in the compression flanges. The bars 8 may be bolted to a plate 10 and may be varied in size according to the strength required. Two parallel built-up girders may be braced together by gussets 15, Fig. 10, and an intermediate member with bars passed through, as shown. The cross-section of the preformed lengths may be L, U, or other shape; the web is formed with ribs reinforced by straps 3 moored to the tubes 2. In curved girders for arches, the bars 8 are curved or may consist of cables. The Specification as open to inspection under Sect. 91 (3) (a) describes also latticed lengths or sections and the application of the invention to roof trusses for sheds, hangars, &c. as shown in Fig. 14 (Cancelled). Further, for short structures not subject to bending, the tubes may be omitted. This subject-matter does not appear in the Specification as accepted.
Patent GB-593756-A (GB)
Title: Improvements in corrugated sheet members for use in building construction
IPC: E04C2/34
Filed: 1945-02-02
Abstract: 593,756. Corrugated sheets for structures. COIA, J. A. Feb. 2, 1945, No. 2623. [Classes 20(ii) and 87(i)] [Also in Group XXIII] A corrugated sheet member 10, Fig. 1, for use in forming the inner structural component of hollow structures such as floors, walls, ceilings, partitions and panels, has formed in its ridge and trough parts, slots 11, Fig. 4, of dovetail, tee or other undercut form. Wooden members 12 are fitted in the slots to enable outer boarding such as a flooring 14 and ceiling boarding 15 to be fixed. The member 10 may have corrugations of stepped or sinuous form and may be made of sheet metal, bonded plywood, resin-impregnatedplywood or paper, asbestos composition, cardboard or resinous material. The member 10 may be made in one piece or may be built up from several sections fastened together. A long strip of wood may be threaded through a series of aligned slots 11. Sound insulation 16 may be provided.
Patent GB-524298-A (GB)
Title: Improvements in and relating to electric wave amplifying systems
IPC: H03F1/36
Filed: 1939-01-26
Abstract: 524,298. Automatic volume control. LAWTON, J. Jan. 26, 1939, No. 2715. [Class 40 (iv)] [Also in Group XL] In an amplifier having both positive and negative feedback having .ratios y and # respectively, and a normal gain Á, the system is preferably so arranged that (1 -Áy) is small compared with the smallest occurring value of Á# when the gain is varied by varying the attenuation in one of the feedback paths. Fig. 1 shows an arrangement in which winding 20 provides the positive feedback and resistances 19, 21 the negative feedback. The gain may be varied by automatic variation of the attenuation in either of the feedback paths in accordance with the signal amplitude. Volume expansion or compression may be effected in this way by varying attenuation in the feedback path using a signal-varied impedance in the positive feedback path at the transmitter and a complementary variable impedence in a negative feedback path at the receiver. The attenuator may be of the type shown in Specification 479,388 or may be an unbalanced bridge circuit as shown in Fig. 4 in which the input and output are taken through terminals 29 and 38 respectively and the control voltage applied to terminals 39. For automatic gain control a pilot frequency of constant amplitude is transmitted, selected and rectified to obtain the control voltage.
Patent GB-1269191-A (GB)
Title: Method of combatting mastitis in mammals
Inventor: FIRTH J A
IPC: A61K/
Filed: 1970-01-21
Abstract: 1,269,191. Combatting mastitis. COMMERCIAL SOLVENTS CORP. 21 Jan., 1970 [22 Jan., 1969], No. 2863/70. Heading A5B. A method of combatting mastitis of bacteriological origin in quadruped mammals comprises daily administration of cycloserine (CS) and O-carbamyl-D-serine (OCS) in a dose of about 0.25g. to about 1.5g. per 100 lb. animal weight, the ratio of CS to OCS being 0.5 to 1.5:1 by weight. The CS and OCS may be administered in admixture or separately, e.g. one component may be administered orally and the other parenterally.
Patent GB-632140-A (GB)
Title: Improvements in irrigating devices
IPC: A01G25/16
Filed: 1948-01-30
Abstract: 632,140. Spray-producers; liquid-pressure engines. DAMGAARD, P. B. Jan. 30, 1948, No. 2871. Convention date, Feb. 8, 1947. [Classes 69(ii) and 69 (iii)] A spraying device is oscillated about a fixed axis by a hydraulic motor, the motor comprising a cylinder 1 containing a double-acting piston 2 having a piston-rod secured to a multi-way cock 5. The piston-rod consists of concentric tubes 3 and 6, the passage through the former leading to a chamber 4, and the annular passage between the tubes leading to a chamber 9 via an opening 8. A passage 13 in the cock 5 is connected to water under pressure, and a passage 14 connected to the outlet of a waterspraying device. Passages 13 and 14 pass to one side of a circular passage 7 into a central chamber 11 which connects by a passage 10 to the passage 7. A plug member 12 within the central chamber is oscillated therein, allowing pressure water to feed alternately into chambers 4 and 9 and thereby driving the piston, the exhausted water being delivered via the pistonrod passages and the passage 14 to the spraying device. The oscillation of the plug 12 is effected by an arm 16 secured to a spindle 15 attached to the plug, and a freely-rotatable arm 17, Fig. 2, the arms being connected by a tensionspring 18, the arm 17 being also connected by a rigid link 19 to the cylinder 1. The arm 16 is displaced with a snap action between stops 21 and 22, depending on the position of the piston within the cylinder. The spraying device may be connected by an arm and link to the cockbody 5, or to the cylinder 1; in the latter case the cock-body would be fixed.
Patent GB-117409-A (GB)
Title: Improved Can Opener.
Inventor: BAYLISS DAVID
IPC: B67B7/46
Filed: 1918-02-19
Abstract: 117,409. Bayliss, D. Feb. 19, 1918. Pivoted handles.- The handle of a cancpene.r is pivoted at 21 in a slotted end of a shoe or guide portion carrying the cutter, and can be held in either of the positions shown by the aid of a removable pin 20.
Patent GB-223109-A (GB)
Title: Improvements relating to expansion joints for concrete and like structures
IPC: E04B1/68
Filed: 1924-02-04
Abstract: 223,109. Goddard, J. F. Feb. 4, 1924. Concrete paving, flooring, and roofs. - An expansion joint for concrete roads, floors, and roofs, and other structures consists of a flexible metal strip, preferably copper, shaped as shown and embedded in the surface coating e so as to localize cracks. The turned-up edges prevent moisture in the cracks from reaching the foundation d. The strips may be arranged in squares and be soldered or otherwise connected at the joints.
Patent GB-682458-A (GB)
Title: Improvements in or relating to hose for conveying gaseous media
Inventor: HEALD JOHN ERIC
IPC: F16L11/22
Filed: 1950-02-06
Abstract: 682,458. Hose pipes. BELL'S ASBESTOS & ENGINEERING, Ltd. Feb. 6, 1951 [Feb. 6, 1950], No. 2992/50. Class 99 (ii). In a hose for conveying gaseous media comprising inner and outer tubular casings 3, 1, Fig. 2, respectively, of suitable flexible material with the outer casing 1 applied over a wire support 2 in the form of a helix or spaced rings, the inner casing 3 is anchored to the wire support at spaced positions around the circumference of the hose. The outer tubular casing 1 is made of green waterproof canvas and the inner tubular casing 3 of asbestos cloth, the latter being secured to the wire helix 2 at four equally spaced attachment points around the circumference so as to form a rectangle between the sides of which and the outer casing 1 are defined segmental air spaces 4. Before the outer casing is applied the inner casing 3 is stitched at each of two diametrically opposed attachment points to an axially arranged asbestos tape 5 that is located outside the wire helix 2 whilst after assembly both casings and the tape are stitched together at the two remaining attachment points. At the ends the inner and outer casings 3, 1 are fastened together by rings 6 the asbestos tape 5 being folded back to form handles 7, which latter may be provided by separate pieces of material. In a modification, the inner casing is provided with four axial series of loops 3a, Fig. 3, the loops being staggered circumferentially; upon assembly, the asbestos tapes 5a, Fig. 6, are threaded through the loops 3a and over the wire convolutions to retain the helix 2 in the spaces between the loops. The inner casing, which may be heated by Silastic or the material known under the Registered Trade Mark of "Hycar," may also be of polygonal form by having five or more points of attachment; the helix may be replaced by separate rings, and the anchorage of the inner and/or outer casings to the wire support may be effected by discontinuous stitching whilst the casings may be separately anchored to the wire at circumferentially displaced positions. In a further modification, the inner casing may be sewn to longitudinally extending tapes with the wire interposed, the outer casing also being sewn to the tapes.
Patent GB-1368575-A (GB)
Title: Method of treating a soil surface in order to reduce the evaporation of the moisture from it
Filed: 1972-01-21
Abstract: 1368575 Treating soil with emulsions of polymeric fatty acids W KROHNSTAD and K O JONSSON 21 Jan 1972 3019/72 Heading C1B [Also in Division A1] In order to reduce evaporation, a soil surface is sprayed with an aqueous emulsion of a hydrophobic polymeric material and a hydrophilic material. The hydrophobic material consists of polymerized fatty acid esters which have been obtained by polymerization of multi unsaturated fatty acids and fatty alcohols and exhibits a strong affinity to the surface soil particles such that by coating them it lessens roughness and irregularities in their surface and hence decreases the number of capillary tubes formed by these particles. The hydrophilic material sinks to a somewhat greater depth and creates a moist sublayer which permits plant roots to form and find their way to water sources at greater depths.
Patent GB-946377-A (GB)
Title: Process for protecting metal surfaces against corrosion
Inventor: PARKER DAVID SAMUEL
IPC: C23F13/02
Filed: 1962-01-26
Abstract: A process for protecting metal surfaces against corrosion comprises the steps of electro-depositing a first layer of cadmium and then a layer of tin.  The cadmium layer is applied in two stages (1) straight-forward D.C. plating with a cadmium electrode and (2) with periodic reversal of the current so that more cadmium is deposited during the plating than is taken off during the removal period.  The latter stage must end with a period of cadmium removal. The cadmium may be deposited from a solution of 6.5-7 ozs./gallon of CdO dissolved in water with excess alkali metal cyanide, e.g. 9-25 ozs./gallon.  The tin may be deposited from a sodium stannate bath preferably containing 0.04-0.1 ozs./gallon of beryllium hydroxide.
Patent GB-540565-A (GB)
Title: Improvement in method of making composite metallic articles
IPC: C23C24/10
Filed: 1940-02-19
Abstract: 540,565. Casting composite articles. HAYNES STELLITE CO. Feb. 19, 1940, No. 3086. Convention date, March 17, 1939. [Classes 83 (i) and 83 (ii)] A valve, valve seat, shaft or other article comprising a body of steel or other metal and a surface portion of a wear- or oxidation-resistant metal, such as cobalt-chromium-tungsten alloy, bronze or high chromium steel, is made by providing shaped solid means for confining molten metal on or against the surface of the body to be coated, placing solid resistant metal within the confining means and heating the whole in a furnace long enough to melt and bond the resistant metal to the body. When using bronze or certain other alloys, the constituents may be used instead of the prepared alloy. The confining means may comprise an integral part 15, Fig. 11, of the blank 10, a metal part 39, Fig. 12, welded on at 40, or a refractory part 17, Fig. 3, or 48, Fig. 16, these confining means being removed subsequently by grinding, drilling, machining &c. during the finishing process. Figs. 1 and 3 show articles before heating with pieces 12 of resistant metal and flux 13 arranged on the surface to be coated. Figs. 12 and 16 show articles after heating, the small recesses left by the refractory supports 50 being filled manually. The prepared articles 55, Fig. 17, may be fed through a furnace 56, cooler 57, and a chamber 58, for further cooling, by a conveyer 53, the furnace and cooler having a neutral or reducing atmosphere. To prevent absorbtion of iron from the body by molten cobalt-chromium-tungsten alloy, the article is rapidly removed from the furnace to a cooler when the alloy has melted.
Patent GB-898116-A (GB)
Title: Apparatus for grinding and/or polishing workpieces
IPC: B06B3/00
Filed: 1961-01-26
Abstract: 898,116. Grinding and/or polishing. METALLGESELLSCHAFT A.G., JOST, T., and JOST, W. Jan. 26, 1961 [Feb. 16, 1960], No. 3131/61. Class 60. Apparatus for grinding and/or polishing workpieces comprises a container for holding the workpieces and grinding material, a vibrator joined to the container for vibrating it. and an elastic bearing pivotally supporting the container so that the container can be tilted while being vibrated. The elastic bearing may comprise foam or solid rubber, pneumatic cushions or flexible metal. A container 1, Figs. 1 and 2, having attached thereto a vibrator 2, has at each end a circular flange 5 resting on rubber-tyred wheels, 3, 3. The container can be tilted around an axis 4, to discharge it, by driving the wheels. Alternatively, the body of the container rests on rubbertyred cylinders. In a modification, Fig. 3, the vibrator 2 is mounted at the bottom of the container 1 which has at each end a circular flange 5 within which is a pneumatic tyre 6. In a modification, Fig. 6, rubber elements 7 arranged in a circle have one end fixed to an end wall of the container 1 and the other end fixed to a plate 8 journalled on a stub shaft 9. In a modification, Figs. 7 and 8, coil springs 10 are fixed at one end to a flange joined to the container 1 and at the other end to axles 9.