baber/WOPTO huggingface dataset:
Patent GB-259496-A (GB)
Title: A new or improved arc lamp for use in medical treatment
IPC: A61N5/06
Filed: 1926-05-11
Abstract: 259,496. Bell &. Croyden, Ltd., J., and: Mason, J. W. May 11, 1926. Arc lamps.-A lamp for use in medical treatment is mounted on a bracket 23 supported by a slide 24, which is adjustably clamped to a turntable 26, with its axis horizontal, carried by an adjustable stand 29. The lamp comprises a hand-frame with horizontal guides 4 on which the electrode carriers may be adjusted by means of a right- and left-handed screw 7 to regulate the arc length, an adjustable reflector 14 behind the arc, a hood 12 around the arc, and a condensing lens 17 of silica, adjustable along the axis of the hood. The hood, which is preferably of oval cross-section and is slotted at 13 for the passage of the electrodes, is adjustably clamped on a rod 9 secured to the hand frame, the lens 17 having' an independent telescopic adjustment. On the lens mount may be fitted a light-directing extension. Rods 2 carrying the electrode-holders are adjustable, at right-angles to the electrodes, in blocks 3 which slide on the guide rods 4. The lamp may be supported by a handle 6, or placed on the stand with the guide-rod 4 resting in slots in the yoke-shaped bracket 23. The stand 29 made be of the folding tripod type. A semiconical bucket 19 catches electrode fragments.
Patent GB-1380363-A (GB)
Title: Bearing capable of accommodating rotational oscillations
IPC: F16C11/04
Filed: 1972-03-15
Abstract: 1380363 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO NV 15 March 1972 [17 March 1971] 12178/72 Heading F2A A bearing comprises an annular series of elements disposed between and in contact with two races, those surface portions of each element which engage the respective races being convex, and the arrangement being such that when the races are rotated sufficiently relative to each other in either direction, the elements initially rotate and, thereafter, are located against further rotation so that at least one of the races then slides over the surface portions of the elements engaging therewith. The elements may be cylindrical rollers (Fig. 2), or they may be of the shape shown in Fig. 6; in a further embodiment (Fig. 4, not shown), each comprises a cylindrical central part having diametrically opposed projections which carry the convex surface portions.
Patent GB-190680-A (GB)
Title: Improvements in or relating to suspended scaffolds
IPC: E04G3/22
Filed: 1922-05-01
Abstract: 190,680. Pitou, E. May 1, 1922. Staging, suspended.-For supporting heavy swinging platforms, outriggers formed of adjustable superposed bars 40, 45 clamped together by cam-actuated clamps 65, Fig. 9, are used, and two supporting cables 46, 47, leading to winches on the platform are provided at each outrigger. A covering roof 57 and a guard rail 78 are also provided for the platform. To enable material to be easily hoisted to the platform, a hoist 85 raised by a cable 83 and guided by uprights 36, is provided.
Patent GB-1223758-A (GB)
Title: Improvements in or relating to gas burners
Inventor: ROOKE ROLER HARRY
IPC: F23D99/00
Filed: 1968-03-13
Abstract: 1,223,758. Gas burners. WILLIAM BAILEY (BIRMINGHAM) Ltd. 28 Feb., 1969 [13 March, 1968], No. 12233/68. Heading F4T. A gas burner, e.g. for natural gas, comprises a first part 20 including a pair of generally parallel ribs 22, 22, joined to a second part 9 so that the ribs 22 and opposed flat surfaces 21, 10 of the parts define a gas passage terminating in a slit 37, beyond which the part 20 extends to provide a flat gas streaming surface 27 where the gas is aerated and slowed to burn at the end 8 of the surface 27. Portions 24 of the ribs 22 diverge in the vicinity of slot 37 with an included angle of about 65-72 degrees and the sides 28 of surface 27 are parallel thereto. The ribs then extend directly away from each other but in modifications these portions 38 may be omitted or the ribs may extend divergently across the surface 27, e.g. parallel to the sides 28. Both ribs may be formed on either part or one rib on each part. Part 9 is formed with a semicircular cross-section recess 11 in its flat surface 10 terminating at 13 by widening and reducing in depth, and a recess 26 is provided in part 20 between the ribs 22. In modifications, the opposed surfaces 21, 10 of the two parts may be sloped to vary the width of the slit 37, and the surface 27 may be contoured. A shield may be riveted to a stud on part 20 to control flow of air to the gas and to prevent draughts. The parts 9 and 20 are preferably hot brass stampings and are soldered or brazed together using the surfaces 21, 10 outside the ribs 22, the slot being either coated with graphite or filled with an oxidized titanium finger during the operation. Reference has been directed by the Comptroller to Specification 1,120,573.
Patent GB-1208931-A (GB)
Title: Material thickness gauging device
Inventor: MOORE GRAHAM ERIC
IPC: G01B5/06
Filed: 1968-03-13
Abstract: 1,208,931. Rolling. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. 13 June, 1969 [13 March, 1968], No. 12234/68. Heading B3M. [Also in Divisions E2 and G1] In a material thickness measuring device excessive movement of the lower roller 27 such as caused by breakage of the material being measured, operates a micro-switch 58 which causes a preceding rolling mill to be shut off.
Patent GB-728581-A (GB)
Title: Improvements in or relating to the production of hydrocarbon oils
Filed: 1950-05-17
Abstract: Hydrocarbon oils, particularly fuel oils, are produced by treating petroleum fractions with urea in the absence of water to form a solid urea adduct, in the presence of an alkanol having 1-3 carbon atoms and a hydrocarbon diluent.  The adduct is decomposed by heating in the absence of water and the recovered urea, which may be in the form of an emulsion of liquid urea in fresh feed oil, is recycled to the treating stage.  Alkanols specified are methanol, ethanol and propanol.  The hydrocarbon diluent must be free of compounds forming urea adducts under the conditions of the process.  Petroleum fractions boiling from 200-350 DEG  C. may be fractionally distilled and the fraction boiling from 100-200 DEG  C. used as diluent and the higher boiling fraction treated with urea. The treatment of gas oil, using kerosene as the hydrocarbon diluent, is described. Specification 714,327 is referred to.
Patent GB-109099-A (GB)
Title: Improvements relating to the Supply of Combustible Mixture to Engines used with Air-craft.
IPC: F02M7/11
Filed: 1916-08-31
Abstract: 109,099. Wolseley Motors, Ltd., and Wardell, T. Aug. 31, 1916. Spray carburettors.-In supplying a combustible mixture to engines used for aircraft, the variation in density of the atmosphere is used to control automatically the flow of petrol through the jet, by varying the air pressure on the liquid fuel in the float chamber A. In the apparatus described, an aneroid instrument D, such as is used in a barograph, operates a valve F which may control either the air admitted above the float through a passage a or the air drawn through a passage a<1> leading from the float chamber A to the mixing-chamber B.
Patent GB-394791-A (GB)
Title: Improvements relating to anti-dazzle fittings for headlamps
IPC: F21V11/00
Filed: 1932-04-29
Abstract: 394,791. Anti - dazzle devices for vehicle lamps. TALBOT, S. E., 17, Mostyn Road, Merton Park, London. April 29, 1932, No. 12340. [Class 75 (iv).] In an anti-dazzle device for vehicle lamps in which a plurality of concentric rings are mounted in the radiating vanes of a spider element, each ring is built up of a number of arcuate sections 9, each of which subtends the angle between adjacent vanes 6. The sections 9 may be provided at each end with one or more projecting tongues 10 adapted to engage in and be bent over correspondingly positioned slots in the vanes, and each slot may receive the tongues of two adjacent sections. In the lower part of the lamp some of the ring sections may be omitted. The device includes a frame ring 5 and a disc 7 carrying a tube 8, and the parts 5, 6, 7 may be formed separately or integrally.
Patent GB-684173-A (GB)
Title: Improvements in or relating to push feed pencils
IPC: B43K21/20
Filed: 1950-05-18
Abstract: 684,173. Pencil holders. BRUER, C. G., KEESE, F., BRUER, I., BRUER, M., BRUER, G., and KLUSMANN GEB BRUER. R., [trading as GRIEF WERKE VORM, DEUTSCHE BUROBEDARFSGES. BRUER & CO. KOMMANDIT-GES.]. May 18, 1950. [May 19, 1949] No. 12400/50. Class 146 (iii). A. push-feed pencil in which the lead is fed successively by intermittent casual pressure exerted on an operating knob, comprises a partly or wholly transparent outer casing 3, a lead-feeding mechanism 1, a transparent slidable lead-storage container 4 contained within the casing 3 by a plug or cap 11, the lower end of the container abutting against a lead-feed tube 6 and acting as a ram for the lead-feeding mechanism, while the rearward end of the container is permanently closed and projects beyond the plug 11 to form the operating knob 7. The container 4 is formed as a replaceable unit, such that by removal of the plug 11 from the casing, the container may be readily inserted. The casing may be formed of two readily connectible parts, e.g., by being threaded together.
Patent GB-1139366-A (GB)
Title: Improvements in or relating to cavity resonators for use at optical wavelengths
IPC: H01S3/082
Filed: 1966-03-22
Abstract: 1,139,366. Optical apparatus. WESTERN ELECTRIC CO. Inc. March 22, 1966 [March 31, 1965], No.12507/66. Addition to 1, 056,686. Heading G2J. [Also in Division H1] A cavity resonator for use at optical wavelengths, comprises a pair of essentially spherical mirrors 22, 23, Fig. 2A, defining the ends of the cavity and means for introducing a beam of light 26 into the resonator for multiple reflections by the mirrors in a set of non-interfering off-axis paths, the arrangement being such that a non-uniform reflection pattern is produced causing the beam to follow a plurality of different sets of paths in the resonator. The arrangement may be applied to the laser amplifier described in Specification 1, 056, 686 but the path length in the cavity is increased since instead of the light beam being progressively reflected at each mirror at points lying along a single ellipse or circle the points lie along a plurality of such ellipses. This may be achieved by ensuring that the beam impinges on an adjustable mirror 24 before completing an ellipse to commence tracing a new one on the surface of each mirror 22, 23. Alternatively one or both of the cavity defining mirrors may have a small alteration, e. g. they may have a cylindrical component of only a few fringes to produce a hissajous pattern. The cavity resonator may be used as a transversal filter or tapped delay line by introducing a plate between the mirrors, inclined at an angle deriating somewhat from the Brewster angle.
Patent GB-167547-A (GB)
Title: Improvements in or relating to internal combustion engine fuel injection devices
IPC: F02D1/02
Filed: 1920-05-05
Abstract: 167,547. Widdowson, W. P. May 5, 1920. Cylinders receiving liquid fuel.-The fuel is supplied to the injection valve b by a pump d which is regulated by an escape valve c in a continuation 9 of the delivery pipe 7. The valve c is situated beyond the injection valve to avoid the reversal of the column of liquid in the pipe. The escape valve remains closed until the required charge has passed through the injection valve.
Patent GB-1468240-A (GB)
Title: Method of manufacturing a heat exchanger
IPC: B21D53/02
Filed: 1974-03-21
Abstract: 1468240 Making heat exchangers PHILIPS GLOEILAMPENFABRIEKEN NV 21 March 1974 [26 March 1973] 12592/74 Heading B3A [Also in Division F4] A method of making a heat exchanger comprises assembling a stack of substantially I- shaped plates 2, 3, between two end members 4, uniting the assembly of plates and end members by a soldering or diffusion-bonding process to form a body of substantially I-shaped crosssection, the body having an intermediate portion, which forms the upright part of the I- shaped cross-section, and two end portions of greater width than the intermediate portion, which form the transverse parts of the I-shaped cross-section, and giving each end portion of the body a rotation-symmetrical shape by removing material from the end portion. The plates 2 are formed from corrugated blanks having uncorrugated portions 2<SP>1</SP>, 2<SP>11</SP>, and the depth of the corrugations is twice the thickness of the plate material. The uncorrugated portions are folded about lines X-X to form sealing strips of the same thickness as the corrugation depth. The plates 3 are formed similarly except that the fold and corrugations are at right angles to those of the plates 2. The plates (1) are uncorrugated, Fig. 1 (not shown). All the plates are preferably of copper plated steel and the stack of plates is heated under compression to bond the plates by diffusion of the copper layers. The bonded stack is machined to circular shape and sealing ring grooves 5 may be formed at the same time. Alternatively the stack may be etched to shape. In alternative constructions the sealing strips are of sufficient thickness to keep the crests of the corrugations clear of the plates 1 and/or the corrugations may be disposed at other angles than a right angle to one another. The corrugations may also be perforated and the block may be machined to a frusto-conical rather than a circular shape.
Patent GB-233156-A (GB)
Title: Improvements relating to separators for grain
IPC: B07B1/46
Filed: 1924-05-22
Abstract: 233,156. Watts, G., Denham, H. J., and Simon, Ltd., H. May 22, 1924. Reciprocating sieves. - A sieve for separating spherical vetch grains from wheat comprises corrugations in the channels b of which are formed elongated apertures c of dimensions sufficient to pass the grains of wheat and retain the spherical vetch grains. The feed end of the sieve may be unperforated and serve solely to align the grains parallel to the channels. Any suitable means may be used for reciprocating the sieve.
Patent GB-789277-A (GB)
Title: Nickel-silicon-boron alloys
Inventor: CAPE ARTHUR TREGONING
IPC: C22C19/00
Filed: 1956-04-25
Abstract: An alloy suitable for hard facing purposes at relatively low temperatures has the following composition. .Si.2.5 - 5.5 per cent .B.0.75 - 5.25 per cent .Cr.4.0 - 9.5 per cent .Fe.1.0 - 5.0 per cent Ni the balance with traces of impurities such as Mn and P.  The Fe content is always less than that of Cr and the sum of the Fe and Cr contents is not less than 5 per cent and not greater than 12 per cent.  Specification 785,416 is referred to.
Patent GB-185459-A (GB)
Title: Improvements relating to coal cutting and similar machines
IPC: E21C35/06
Filed: 1921-05-03
Abstract: 185,459. Cowlishaw, Walker, & Co. (1920), Ltd., and Moore, M. S. May 3, 1921. Coal-cutting machines.-In a machine in which the body is mounted on adjustable supports whereby it may be tilted laterally or longitudinally or both, the body a is rotatably mounted at the cutter end in a ring c with trunnions d engaging buckets e on framesupporting members m, while laterally-disposed adjustable supports b are placed at the haulage end of the body. The supports b may comprise screws b<2> with ball ends engaging bearings l<2> secured to the members m, the screws engaging nuts b<1> with ball ends engaging the body a: worm gearing f, driven by laterally-projecting spindles h, rotates the nuts. One of the nuts engages a boss i on the body, the boss permitting tilting about the trunnions d but giving rigid lateral support. Lubricating- means a<2>, b<3>, are provided.
Patent GB-1017016-A (GB)
Title: Improvements in travelling and like cases having hinged lids
Inventor: BRODIE ROBERT JOHN
IPC: B65D51/14
Filed: 1964-03-25
Abstract: 1,017,016. Boxes and cases. SEIDNERS Ltd., [trading as SEAGULL PRODUCTS]. Nov. 11, 1964 [March 25, 1964], No. 12673/64. Heading B8P. A travelling or like case having a hinged lid has the case sides, &c. 3, 4, Fig. 2 (not shown), connected at their edges by an extruded beading 5 of plastics material formed with slots 6, 7 for the sides, to which they are welded by a high-frequency process along their outer surfaces 12, 13 so as to exclude wet, &c. The beading is provided with an internal protuberance 8 to stiffen the case, and an external rib 9 to protect the case sides from scratches, &c. The case sides, &c. 3, 4 are either made from a plastics material, or are covered with such a material. In Fig. 1 (not shown), a case is illustrated having its bottom 1 secured to integral side walls 2 by the beading 5, and provided with a lid 3 connected to its skirt 4 by the beading.
Patent GB-238931-A (GB)
Title: Improvements in the manufacture of liquid fuel similar to petrol
IPC: C10L1/16
Filed: 1924-05-23
Abstract: 238,931. Prudhomme, E. A. May 23, 1924. H y d r o carbons. - Liquid fuel having the general characteristics of petrol is produced by adding to water-gas or Dowson gas gases rich in hydrocarbons, especially those of the acetylene series, and passing the gas mixture first over a hydrogenation catalyst, then over a dehydrogenation catalyst and finally over catalysts to effect polymerization of the acetylene hydrocarbons. The addition of the gases rich in hydrocarbons may be effected either by working the gas producer so that the gases formed in the reducing zone passthrough upper layers of fuel rich in volatile matter, for example, lignites, or by passing gases from the producer through a heated mass of solid fuel thus effecting low-temperature distillation of such fuel. The gas mixture, before passing overthe catalysts, is advantageously passed through a purifying mixture such as Laming's mixture,. that is, a mixture of lime and ferric oxide rendered porous by addition of sawdust; the mixture is heated to prevent condensation of hydrocarbons. According to an example, water-gas or Dowson gas is passed through a heating coil, downwards through retorts containing lignite,. and through a purifier; the gas is then passed at 180-200‹ C. over pumice impregnated with nickel, whereby there is produced a considerable quantity of methane which is dehydrogenated to form acetylene by passage at 200-230‹ C. over nickel and vanadium impregnated pumice; finally the acetylene hydrocarbons are polymerized to liquid hydrocarbons by means of nickel and cobalt impregnated pumice at 180‹ C.; the lignite coke remaining in the retorts may be used for the production of the water-gas &c. Fig. 2 shows an arrangement of apparatus in which a gas producer 1<a>, the distillation retorts 2, the purifier 3, and the catalyst tubes 4, 5, 6 are arranged in a unit so that the heat liberated from the producer is sufficient for the needs of the other apparatus; the hydrocarbons are condensed in the worm 7 and collected in the receiver 8.
Patent GB-1255663-A (GB)
Title: Pipe racking and transfer assembly
Inventor: BROMELL RAYMOND JOHN
IPC: E21B19/15
Filed: 1969-03-11
Abstract: 1,255,663. Boring earth. AUTOMATIC DRILLING MACHINES Inc. 11 March, 1969 [11 March, 1968], No. 12717/69. Heading E1F. [Also in Division F1] The subject-matter of this specification is identical with that described in Specification 1,255,662, but the claims are concerned with a control system for and a method of controlling the pipe racker.
Patent GB-828942-A (GB)
Title: Improvements relating to propellers or the like having variable-pitch blades
IPC: B63H3/08
Filed: 1957-04-18
Abstract: 828,942. Axial flow pumps; hydraulic turbines. HATCHER, E. C. April 14, 1958 [April 18, 1957; July 16, 1957], Nos. 12757/57 and 22515/57. Classes 110 (1) and 110 (3). [Also in Group XXXIII] In a pump or turbine having variable-pitch blades 2 (Fig. 1), an hydraulic motor for adjusting the pitch of the blades comprises a movable cylinder 13 operatively connected to each of the blades and a piston 10 movable in the cylinder and also operatively connected to each of the blades, the load for controlling the pitch of the blades being shared between the said cylinder and piston. The roots of the blades are bolted at 3 to discs 4 rotatable in bearings 5 secured to the hub 1. Each disc carries two crank-pins 6 (see also Fig. 2), one of which is connected to a crosshead 8 on the piston-rod 9 of the piston 10 and the other to a cross-head 11 carried by an extension 12 of the floating cylinder 13. A tube 17 in the rod 9 extends through the hollow propeller shaft 18 (see also Fig. 3) and is coupled at 27 to a link 42 of a linkage 39-42 through which a control lever 38 actuates a reversing valve 22 for admitting and exhausting pressure fluid through ports 23, 24 in communication with said motor. The port 24 communicates via port 26 in coupling 27, interior of tube 17, and port 30 in rod 9 with the space 7 on one side of the piston 10. Port 23 communicates via a space 21 around the tube 17, ducts 31, pipes 33 and ducts 34, 36, 37 with the space X on the other side. The link 42 serves as a feed-back device which centralizes the valve 22 in a predetermined position after piston 10 and cylinder 13 have moved to adjust the pitch due to movement of the control lever 38. Any tendency to change the established pitch moves tube 17 axially, hence lever 40 is rocked about its pivot 43, thus operating valve 22 to connect said tendency, the lever 40 acting as a differential device. A spring-loaded valve 54 in a duct 31 leading to a pipe 33 co-operates with a bore 57 to maintain the space Z full of oil, at a head determined by a gravity tank 51 when the pump 48 is not operating.
Patent GB-418151-A (GB)
Title: Improvements in or relating to machines for moulding dough and like plastic substances
IPC: A21C7/00
Filed: 1933-05-02
Abstract: 418,151. Rolling-up and rounding dough &c. HALL, W. A., Kelowna, Durham Road, Gateshead-on-Tyne. May 2, 1933, No. 12788. [Class 87 (ii).] In a machine for rounding pieces of dough between a rotary flanged drum and a co-operating casing, the side flanges of the drum are relatively adjustable laterally and the means for effecting such adjustment is carried by the drum. The flanges 2 of the drum 3 are carried by arms 6 on three rods 4, each screwed right and left hand and rotatably mounted in bearings 5. The rods 4 carry sprocket-wheels 7 which are connected by a chain 8 so that when the end 9 of one rod is turned by a key or spanner the flanges 2 are moved axially. The drum 3 is driven from a shaft 17 by a chain 18. The casing or trough 19 is pivoted on a shaft 20 and comprises a metal band 22, Fig. 5, and sections 23 attached to carriers 24 connected by a series of double screws 25 which can be simultaneously rotated by a chain 29 to adjust the sections 23. As shown, the flanges 2 may have concave webs 74 on their inner sides to impart an ellipsoidal form to the dough lumps. For cylindrical loaves the flanges 2 may be reversed and the sections 23 may be replaced by flat strips. The casing 19 is adjustably held in position by a bolt and wing-nut 30 so that it can be thrown back to expose the drum. A set of four rollers 35 .... 35<c> are provided below the drum 3 to flatten the shaped lumps into disc form. The bearings 40, 43 of two of the rollers are slidable in the frame and are adjustable by screwed rods 44 and hand-wheels 47 to vary the distance between the two rollers of a pair. The roller 35 is mounted on a main shaft 36 and the other rollers are driven therefrom through floating idler gears 52, 54, 55, 57. A conveyer 61 removes the shaped dough and is driven from the shaft 36 by a chain 67 which is tensioned by a spring-controlled lever 70. A stop may be provided for ejecting the dough lumps from the drum 3, and scrapers may be provided on the rollers. The shaft 17 is connected to the conveyer shaft by gears 76.
Patent GB-271638-A (GB)
Title: Improvements in and relating to tobacco pipes and the like
IPC: A24F5/06
Filed: 1926-05-19
Abstract: 271,638. Andrews, J. A. May 19, 1926. Tobacco pipes. - Within a lateral conduit 7 in the stem of the pipe is fitted a non-return valve consisting of a spring- pressed ball in a tubular seating or a spring-pressed plate 9, this valve permitting the ejection of moisture &c. by blowing into the pipe-stem. An inner bowl 2 of ceramic material receives the tobacco and is spaced away from the outer bowl 1.