baber/WOPTO huggingface dataset:
Patent GB-250843-A (GB)
Title: Improvements in or relating to number plates for vehicles and boats
IPC: B60R25/00
Filed: 1925-10-19
Abstract: 250,843. Lindhorst, A., Gronninger, A., and Gronninger, H. Oct. 19, 1925. Guarding against unauthorized use. - The identification plate is wholly or partly obscured by a movable brightly coloured cover plate. The identification plate i, Fig. 2, can be half covered when required by a V-shaped cover plate k hinged at one end and locked at the other end or locked at both ends. A boxform construction has slots p<1>, Fig. 6, in the casing p through which the obscuring plate q can be slid and locked in position. A two-part identification plate may be used in which one plate u, Fig. 8, is mounted on the vehicle and hinged to a movable plate t, the plates bearing the number &c. on one side and being brightly coloured on the other side. By rotating the movable plate through 360� relatively to the other plate either the number or warning colour can be shown at will.
Patent GB-659037-A (GB)
Title: Improvements in or relating to boilers for heating liquids
IPC: B01D3/02
Filed: 1949-10-11
Abstract: 659,037. Liquid boilers. PIERCE FOUNDATION, J. B. Oct. 11, 1949, No. 26111. Convention date, Dec. 8, 1948. [Class 64(i)] A liquid heater, especially for heating heat transfer media with boiling points of 700‹F. and above, e.g. tetra aryl orthosilicates and alkyl aryl mixed ester silicates, comprises front, rear and side base headers 10, 11, 12, 13 (not shown), adjacent ends of which are connected by arcuate piping 14, 16, a top header 21 connected by a series of vertical tubes 22, 23, 24 to one of the side headers 11, which is parallel to it, and by a series of arcuate tubes 26, 27 to the other side header 10. Vertical headers 29 hanging from the front and rear of the header 21 by arcuate piping 30 are connected to the front and rear headers by arcuate tubes 28. Hot gases from the fire pit 20 flow between the tubes, around vertical baffles 25, 39 into the chamber 40, which contains economizer tubes 41 connecting headers 42, 45, the header 42 being connected to the header 29 Flue tubes 46 may heat air from combustion. The casing comprises a frame 35, 36, 37 supporting insulation 38.
Patent GB-1506727-A (GB)
Title: Liquid applicator device
IPC: G03G15/10
Filed: 1975-06-19
Abstract: 1506727 Doctoring device for developing apparatus XEROX CORP 19 June 1975 26174/75 Heading B2L  A developer applicator 10 having a surface comprising lands and valleys after application of liquid developer thereto, is first contacted with a relatively resilient doctoring means 15 to doctor the liquid developer to a predetermined level in said valleys, and then contacted with a means 16 of a more rigid material than the means 15 to clean the lands, prior to bringing said applicator 10 into developing contact with an imaging surface. The means 15, 16 may comprise blades mounted in a common bracket as shown, bonded together or separately mounted. The doctoring means 15 may also take the form of an elastomeric material having a plurality of points of contact with the applicator 10 and may be an elastomeric roller rotated in a direction opposite to that of the applicator 10.
Patent GB-1353926-A (GB)
Title: Semiconductor oscillating device
IPC: H03B7/06
Filed: 1971-04-19
Abstract: 1353926 Semi-conductor device FUJI DENKI SEIZO KK 19 April 1971 [7 April 1970 (4)] 26267/71 Heading H1K [Also in Division G1] A device for producing oscillations consists of a substrate 1 of one conductivity type (see Figs. 1 and 2), a region 2 forming a PN junction 3 therewith, a minority carrier injector region 10 of the opposite conductivity type spaced about one minority carrier diffusion length from junction 3, and a heavily doped ohmic contact region 11 of said one conductivity type similarly spaced from junction 3 but spaced a greater distance from injector region 10. The junction between region 10 and the substrate is forward biased in operation by a voltage applied between electrodes 8 and 9. Within a certain range of applied direct voltages the device produces oscillations the frequency of which varies with voltage. To increase the capacitance of junction 3 and hence give a lower range of frequencies a more heavily doped inclusion may be provided in the substrate where it abuts the junction. Alternatively further capacitance is introduced by disposing an electrode on silica insulation overlying region 2, the electrode forming an extension of or being connected to electrode 9. In another arrangement region 2 is provided with an ohmic contact which may be used as an output electrode in association with electrode 8 or 9. Alternatively it is connected via an external capacitor, resistor, or voltage source to electrode 8 or 9. The capacitor may be variable and the resistor a thermistor or photoconductive element to provide an output frequency which is a function of temperature, light intensity or the angular position of a shaft controlling the capacitance. When using a voltage source the frequency varies with the polarity and magnitude of the voltage. In all cases the external load may be a resistor, inductor or electroluminescent diode.
Patent GB-809656-A (GB)
Title: Improvements in flexible joints for pipes
Inventor: BOWDEN ANDREW THOMSON
IPC: F16L27/02
Filed: 1955-09-14
Abstract: 809,656. Flexible pipe joints. PARSONS & CO. Ltd., C. A. Sept. 7 ,1956 [Sept. 14, 1955], No. 26326/55. Class 99(1). Surrounding a bellows 3, joining pipes 1, 2 are co-axial cylinders 4, 5 connected to an annular ring 10 so as to form a universal joint. The cylinders 4, 5 have flanges 6, 8 which abut flanges 7, 9 respectively on the pipes and a space between the cylinders contains the ring 10 which consists of inner and outer walls 11, 12 joined by radial end walls 13, 14. The walls 13, 14 have diametrically opposite apertures 15, 16 and 17, 18 respectively displaced 90 degrees from each other through which passes projections 21, 22 and 19, 20 from the cylinders 5 and 4 respectively. Each projection has a hole which coincides with two similar holes in the inner and outer walls of the ring 10, pins 26 being inserted in the holes to form the universal joint.
Patent GB-628376-A (GB)
Title: Improvements in or relating to weather bars for skylights and the like
IPC: E04D3/14
Filed: 1947-09-30
Abstract: 628,376. Weather bar for skylights &c. WILLIAMS, H. M. Sept. 30, 1947, No. 26332. [Class 20(iii)] A weather bar for skylights &c. consists of a cone 1 sheathed with weather resistant material 2 with two upstanding flanges 3, 6 of the same material which impede the flow of air along the under surface of the glass 5 and orifices 4 in one flange through which water of condensation escapes. The space between the flanges 3 and 6 may be packed with porous absorbent material 8, and the outlets 4 extended by downwardly bent tubes 4a which may be integral with the sheath or separately attached. In the example shown in Fig. 3 the outlet 4 is connected to an upwardly bent tube 4a so that a water seal 9 is formed. The outlets are preferably four to six inches apart and the internal diameter of the outlets and tubes is preferably one-eighth of an inch.
Patent GB-848018-A (GB)
Title: Machines to cut or mow vegetation
IPC: A01D34/52
Filed: 1957-08-21
Abstract: 848,018. Reaping machines. CHAMBLISS, J. A. Aug. 21, 1957, No. 26372/57. Class 6(3). A vegetation-cutter comprises a driven shaft 10, a plurality of rectangular, plane blades 11 mounted loosely thereon and spacers 13 mounted on the shaft between adjacent blades, the spacers having faces 16 abutting the blades at an acute angle to the shaft so as to maintain the blades parallel to one another at that angle. Preferably the blades are square and have serrated edges 12<SP>1</SP>. Each spacer has a tubular shank 15 with oblique elliptical flanges at each end and has an elliptical hole 17 passing centrally through it.
Patent GB-488071-A (GB)
Title: Improvements in or relating to photographic cameras having telemeters adapted to operate as view finders
IPC: G03B13/20
Filed: 1937-09-30
Abstract: 488,071. Photographic range- and viewfinders. ZEISS IKON AKT.-GES. Sept. 30, 1937, No. 26524. Convention date, Oct. 3,1936. [Class 98 (i)] In a camera having a short-home-base range finder serving also as a view-finder, a partiallytransparent concave mirror is placed in the path of the rays entering the range-finder at the direct-vision end, and forms at infinity an image of markings which define the fields of view of two or more camera objectives. Each objective mount may carry its own marking, and also if desired, the concave mirror. As shown in Fig. 2, a frame 3, slidably fitted at 6, 7 to a camera provided with a rangefinder, carries a partially-transparent concave mirror 1 in the form of a silvered layer between positive and negative lenses. In a rear wall of the frame 3 is an aperture, which is disposed in front of the direct-vision aperture of the range-finder, and is surrounded by a black margin on which are marked in white two rectangles defining different objective fields. An eye looking through this range finder sees at infinity the images of these markings formed in the mirror 1. The markings may, if desired be formed on the camera front. Modifications are shown in which (1) the frame carrying the mirror is attached to the camera, and each objective carries its own marking on a frame which is rocked into position when the objective is fitted, and (2) each objective is provided with a frame carrying a mirror and the marking appropriate to the objective. Reference is made to photographic range and view-finders in which the various fields of view of exchangeable objectives are shown on a ruled plate ; to a stereoscopic range-finder having a similar field-delimiting arrangement. Specification 454,064 is referred to.
Patent GB-1020112-A (GB)
Title: Control arrangement for hydrostatic transmission systems
IPC: B60P3/16
Filed: 1963-07-04
Abstract: 1,020,112. Hydraulic transmissions. APPLIED POWER INDUSTRIES Inc. July 4, 1963 [Oct. 17, 1962], No. 26538/63. Headings F2C and F2D. A hydraulic transmission for driving a mixing drum on a transit concrete mixing vehicle which can drive the drum at different selected speeds and maintain a particular speed once set, comprises a variable volume pump 14 driven by the vehicle engine, and which supplies a fixed displacement motor 22 by way of a line 18 and a reversing valve 20. The motor 22 discharges liquid through the valve 20 and a line 24 to a passage 72 in a speed control device 34. Passage 72 has a maximum flow constant orifice washer 101 and a valve member 98 providing a variable orifice disposed therein, pressure upstream of the orifices being supplied through a passage 73 to a groove 84 around a valve spool 75 and thence through a passage 91 in the valve spool to an end face 93 of the spool to urge it to the left against the pressure of a spring 89 and the pressure downstream of the orifices which is applied through a passage 73<SP>1</SP> to the left-hand end of the spool. Passage 72 communicates through a line 97 with a tank T from which the pump is supplied by a line 31. Pump displacement is controlled by a piston 42 biased by a spring 44 to its high displacement position, and moved towards its low displacement position by pressure supplied by passages 39, 36 and the valve 75 from the passage 24. The valve 20 has a three position slide having end positions providing forward and reverse and a central neutral position in which pump output is supplied directly to passage 24, and this valve and valve 98 are controlled by a common manual lever 48 guided by a gate 46. Valve 98 has a lever 62 connected to lever 48 by a cable 61, and the slide of valve 20 is connected by a bell-crank lever 64 to a shaft 56<SP>1</SP> which is rotatably mounted but axially fixed in the vehicle, the shaft 56<SP>1</SP> being pivotally connected to the lever 48 such that movement of the lever in one plane rotates the shaft 56<SP>1</SP> to adjust the valve 20, and movement of the lever transversely into one of three transverse slots adjusts the valve 98 to set the speed of the motor. The lever 48 can only be moved to control the direction of rotation by actuating valve 20 when the motor speed is a minimum. In operation, with a selected speed set by valve 98, the pressure drop across the fixed and variable orifices biases the valve 75 to the left against the pressure of spring 89 so that the valve is moved to the left or right to decrease or increase the pump displacement to maintain a constant pressure drop across the orifices to give a constant output speed from the motor 22. A lightly loaded non-return valve 113 and a more strongly loaded non-return valve 108 are provided in flow and return lines to the pump adjusting piston 42 to reduce the effect of sporadic pressure variations in the system upon the pump control piston.
Patent GB-751933-A (GB)
Title: Improvements relating to tents
Inventor: SCHAEFER FRANZ
IPC: E04B1/344
Filed: 1954-09-14
Abstract: 751,933. Tents. SETHE, A., SALZMANN, M., and BEICHHOLD, R. Sept. 14, 1954, No. 26607/54. Class 20(1). A tent of large dimensions comprises tarpaulins secured on frame members arranged spatially one behind the other, each frame member consisting of two halves a, b, hinged at c, the outer end of the half a being pivoted at d to a foundation, and the outer end of the half b being slidable on a slideway f. To erect the tent, the frame members are lifted at the hinges c until the members assume the position shown after which the ends of the halves b are pulled towards the ends d of halves a by means of ropes and pulley blocks g, h. When the tent is fully erected, Fig. 3 (not shown), the outer ends of the halves b are anchored and the ropes and pulley blocks removed.
Patent GB-1186218-A (GB)
Title: Improvements in or relating to Printed Circuits.
IPC: H01B3/30
Filed: 1967-06-08
Abstract: 1,186,218. Coated sheet material. DYNAMIT NOBEL A.G. 8 June, 1967 [8 June, 1966 (2)], No. 26614/67. Heading B2E. [Also in Divisions B5 and H1]  A substrate for use in the manufacture of a printed circuit comprises a laminate of a plurality of resin-impregnated sheets, a surface of which laminate is covered with a layer of an acrylonitrile-butadiene-styrene polymer or of poly-4-methyl pentene. The laminate may be formed from cellulose paper, cotton fabric, glass fibre fabric, or synthetic fibre fabric impregnated with a phenol-formaldehyde resin, an epoxide resin or an unsaturated polyester resin. The polymer layer may be applied to the laminate by dipping, spraying, or casting. The surface of the polymer layer is roughened, e.g. by treatment with chromosulphuric acid, before a metal (e.g. copper) foil pattern is applied thereto, e.g. by electrodeposition.
Patent GB-1242507-A (GB)
Title: Self adhering stock and methods of making same
Inventor: THARP INMAN DEAN
IPC: C09J7/21
Filed: 1970-06-02
Abstract: 1,242,507. Laminates. LITTON BUSINESS SYSTEMS Inc. 2 June, 1970 [4 June, 1969], No. 26633/70. Heading B5N. A laminate comprises a substrate having a surface in which are embedded discrete particles, the particles projecting from the surface to penetrate and frictionally anchor a covering sheet causing the sheet to adhere to the substrate allowing subsequent stripping of the sheet from the substrate. The covering sheet may carry a release layer and a patterned layer of adhesive next to the discrete particles. The substrate may be of cloth, plastics or paper, e.g. litho grade paper; the particles may be of silica, pumice, cerium oxide, emery, silicon carbide, berrylium oxide or boron carbide; the release sheet may be of kraft paper or plastics and the release layer may be of nitrocellulose, cellulose triacetate or a silicone. The particles may be printed or coated directly on the substrate or dispersed in nitro-cellulose, ethyl cellulose, cellulose acetate butyrate or polyvinyl chloride or an aqueous dispersion of colloidal silica may be directly printed or coated on the substrate. In the drawing, a substrate of label stock 3 is coated with a patterned layer of discrete particles 5 and is laminated to a release sheet 7. The sheet 7 includes a base sheet 15 and a release coating 9 having a patterned layer of adhesive 11 thereon.
Patent GB-225833-A (GB)
Title: Improved manufacture of zinc-oxide
IPC: C22B19/34
Filed: 1924-11-07
Abstract: In the production of zinc oxide by burning zinc vapour which is produced in a muffle or in an electric furnace and issues as a jet or stream by an outlet, the production of solid deposits around the outlet is prevented by causing a current of non-oxidizing gas such as producer-gas, hydrocarbons, or nitrogen to impinge against the circumference of the outlet.  When a combustible gas is employed it may be admixed with a calculated amount of air so as to produce a reducing or neutral flame, and the protective gas may in either case be preheated.  The zinc vapour outlet may have a circular shape and may be lined with a ring of refractory heat-conducting material such as carborundum or a cast iron having a high percentage of silicon or chromium; for instance a plate of such material with a circular hole may be placed in front of the vapour outlet, or the outlet may be lined with a ring of such material.  The protective gas may be led to the outlet from all sides, for instance by an annular spreading device, and the zinc vapour may issue horizontally or inclined upwardly; or, as the deposit tends to appear at the lower side of the outlet, the gas may be directed in a flattened stream towards the lower side of the outlet.  The mouth of the upwardly inclined gas pipe may be covered with a distributing plate or the like to avoid choking by falling oxide.  In order to obtain pure zinc oxide, the first and last portions of the distillate may be collected as metallic zinc or zinc dust, the zinc oxide being produced only during the middle stage of the distillation.  The protective gas would then be shut off during the first and last periods.  The Specification as open to inspection under Sect. 91 (3) (a) states that the protective gas may be led against the wall of the muffle or furnace below the outlet so that the furnace wall acts as a guiding surface.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1168317-A (GB)
Title: Thiolphosphoric (-Phosphonic) Acid Esters
Inventor: COLLN REIMER
IPC: C07F9/40
Filed: 1967-06-09
Abstract: 1,168,317. Fungicides containing thiolphosphoric acid esters. FARBENFABRIKEN BAYER A.G. 9 June, 1967 [10 June, 1966; 16 Aug., 1966; 2 Dec., 1966], No. 26685/67. Heading ASE. [Also in Division C2] A fungicidal composition comprises a phosphorus ester of the general formula:- wherein R 1  is C 1 -C 4  alkyl and R 2  is a C 1 -C 4  alkoxy radical in admixture with a solid diluent or carrier. The composition may also contain a surface active agent and may be in the form of a solution, emulsion, suspension, powder, paste or granulate and an organic solvent may also be used when water is used as diluent. Application may be by squirting, dusting, spraying or atomising and other plant protection agents may also be present e.g. herbicides, insecticides, bactericides or other fungicides. The compositions are particularly useful for application to rice plants subject to fungal attack.
Patent GB-1272998-A (GB)
Title: Purlin for roof structures
IPC: E04C3/07
Filed: 1969-05-27
Abstract: 1,272,998. Purlins. THEODOR WUPPERMANN G.m.b.H. 27 May, 1969 [15 June, 1968], No. 26785/69. Heading E1K. A purlin of I section has its flanges 2 at an acute angle to the web 1 or with their central portions equally spaced on opposite sides of the web, so that the axis of inertia coincides with the load. In Fig. 2 the flanges are parallel to the roof 3.
Patent GB-365029-A (GB)
Title: Improvements in or relating to the manufacture of hollow drill steel and like hollow bars
IPC: B21B17/14
Filed: 1931-09-25
Abstract: 365,029. Making hollow bars. FAGERSTA BRUKS AKTIEBOLAG, Fagersta, Sweden. Sept. 25, 1931, No. 26811. Convention date, Sept. 25, 1930. [Class 83 (iv).] Cores.-Austenitic steel cores are removed from hollow drill steel and like hollow bars after formation by rolling or otherwise reducing hollow blanks, by heating to a temperature above 50‹ C. and then tensioning and drawing out at such temperature. A core containing 12 per cent of manganese and 1 per cent of carbon may be heated to from 100 to 200‹ C. The temperature may be slightly higher than that most suitable for the stretching operation in order to compensate for losses during operation. The heating may proceed continuously during operation by introducing electric current to the bar by the holding jaws of the tensioning apparatus or by contacts engaging the cut ends of the bar.
Patent GB-602285-A (GB)
Title: Improvements in or relating to the feeding and registration of sheets to printing or like machines
IPC: B41F21/10
Filed: 1945-10-13
Abstract: 602,285. Feeding sheets to machines. WAITE & SAVILLE, Ltd., and WHYTE, F. Oct. 13, 1945, No. 26833. [Class 100(i)] Sheets are fed to printing and like machines from a feed board by means of grippers carried by an intermittently rotating cylinder, or rotating arms, which bring the grippers to a position of rest beyond the sheet which is registered against the front lays, and the gripper carrier moves backwards from its position of rest to take the registered sheet and is then accelerated to the speed of the associated constantly rotating impression cylinder 3 before transferring the sheet to the grippers 19 of the impression cylinder. The shaft 2 of the gripper carrier 1 is driven for the main part of its motion by a quadrant gear 6 engaged by a gear 5 on the shaft of the impression cylinder, but when the gears 5, 6 run out of engagement the shaft 2 is controlled by decelerating and accelerating mechanism comprising a pair of rollers 10, 10a, carried by an arm 9 on the shaft 4 of cylinder 5, and a control cam 14 secured to the shaft 2. A further means of controlling the rotation of the shaft 2 comprises cams 7, 8 on the shaft of the impression cylinder and a pair of bowls 11, 12, connected to the shaft 2, the roller -12 being secured rigidly and the roller 11 mounted in a spring- pressed arm 15 normally pressed by a spring 17 against a stop 16. The bowls 11, 12 and cams 7, 8 co-operate to reverse the carrier from the position shown in Fig. 9 to cause the open grippers to take the sheet from the front lays, and then from the position of the parts shown in Fig. 2, the roll 10 engages the surface 13 of cam 14 and accelerates the shaft 2 to cause the grippers to attain the speed of the cylinder grippers 19, and also to bring the quadrant 6 into gear with the cylinder. After transfer of the sheet to the grippers 19 the carrier 1 rotates at the speed of the cylinder until the roll 10a engages cam surface 13a to decelerate the carrier 1, the quadrant 6 running out of gear. The bowl 12 then approaches the decelerator cam 8, and finally both bowls 11, 12 engage their respective cams 7, 8, and the gripper comes to rest as shown in Fig. 9 in advance of the front lays. To enable the feed gripper to move past the registered sheet without interference, the feed table may be lowered by cam mechanism as the gripper passes the lays, or the gripper bar 23 may be moved inwards by cam-and-lever mechanism 20, 21, 22, Fig. 9.
Patent GB-154419-A (GB)
Title: Improvements in rubber mouthed bridle bits
IPC: B68B1/06
Filed: 1919-11-01
Abstract: 154,419. Harvey & Co., M., and Cubley, H. Nov. 1, 1919. Bits.-A short piece of stranded steel or other wire cable 3 is used as a substitute for the usual chain in rubber mouthpieces. The ends of the cable-piece are secured to the cheeks 2 preferably by bending clip-pieces 5, Fig. 6, round the cheeks and securing these on the cable-piece by ferrules 8. The cable-piece is divided from a long length by an acetylene flame which welds together the ends of the wire strands and forms a slight enlargement 4. The clips, cable piece, and parts of the cheeks are covered with rubber which is vulcanized.