baber/WOPTO huggingface dataset:
Patent GB-709162-A (GB)
Title: Improvements in eddy-current brakes
IPC: H02K49/04
Filed: 1952-05-23
Abstract: 709,162. Eddy current brakes. ELECTRO-MECHANISM DE L' AVEYRON. May 23, 1952 [Jan 17, 1952], No. 13174/52. Class 35 An eddy current brake has a 2-disc rotor mounted on a shaft between two stator members, the discs being spaced from each other but having axially inwardly projecting lugs at their periphery. The discs also have apertures near the shaft to allow cooling air to flow from the two helical fans mounted on the shaft one at each side of the rotor. Fig. 1 shows rotor spaced discs 5a, 5b on a common shaft 4. The discs have apertures 6a, 6b so as to enable cooling air to flow radially from fans 15a, 15b located on either side of the rotor, Fig. 7. The rotor discs 5a, 5b have these constructional features: stiffening ribs 10a, 10b, inwardly projecting lugs 7a, 7b joined by bolts 9, fan blades 11a, 11b at the peripheries of the discs, and hubs 5<SP>1</SP>a, 5'b. In order to facilitate the flow of air from the helical blades 17a, 17b of the fans 15a, 15b, the arms 14a, 14b which are holed with apertures 6a, 6b are given an elongated section with a main axis a-a, Figs. 8, 11. The stator poles 1 are mounted on plates 2 which are cooled by external fans 23 located at each end of the shaft 4. The plates 2 have air intakes at their periphery at 12 or near the bearings 3. The direction of the flow of cooling air inside the apparatus is shown by the arrows in Fig. 1.
Patent GB-552586-A (GB)
Title: Improvements in or relating to dynamometers
IPC: G01L3/20
Filed: 1941-10-15
Abstract: 552,586. Dynamometers. BROWN & SONS (HUDDERSFIELD), Ltd., D., and MERRITT, H. E. Oct. 15, 1941, No. 13261. [Class 106 (ii)] A dynamometer comprises a fluid pump the casing of which is mounted pivotally so that the torque exerted upon it may be measured, characterised in that the pump consists of a central toothed driving rotor engaging with two toothed driven rotors disposed on diametrically opposite sides of the said driving rotor. A central toothed driving rotor a drives two rotors c, d, preferably of smaller diameter, rotor a preferably having an odd number of teeth to make the discharge more uniform. The casing e is journalled on bearings coaxial with the shaft of rotor a, and is secured to torque-measuring means comprising a spring balance c and a dashpot w. The two pressure cavities f and the two suction cavities g are connected by passages in the casing or end walls to opposite sides of piston valve k, housed in a separate unit bolted to the casing. The stem of the valve is connected by an adjustable link to a fixed point. Fluid is drawn from a supply pipe s and is discharged through a small pipe t. Instead of a fixed anchorage, the valve may be connected to a governor or to a differential gear and synchronous motor, so as to keep constant the speed of the engine being tested.
Patent GB-1006895-A (GB)
Title: Improvements in or relating to structural elements containing electrical discharge lamps
IPC: F21S8/00
Filed: 1959-10-17
Abstract: 1,006,895. Building panels. G. M. ADIE. Jan. 16, 1961 [Oct. 17, 1959], No. 13264/59. Heading E1B. [Also in Divisions F4 and H1] A discharge lamp panel, particularly for ceilings or walls, comprises at least two sheets 2, 4 each having a regular series of truncated conical or hemi-spherical dimples 6 arranged in parallel rows in rectangular grid form, adjacent sheets being fastened together so as to provide, between the dimples, two series of parallel ducts or passageways extending across the panel, the material of the panel on at least one side of the passageways being translucent, and at least some of the passageways containing discharge lamps 28. At least some of the passageways can be lined with glass or plastic tubes sealed at their open ends to the outside edges of the panel, the lamps being placed within the tubes and being removable therefrom for cleaning. Alternatively the ends of the lamps can be sealed within the tubes or the tubes can be omitted and the ends of the lamps sealed to the edges of the panel to prevent the entry of dust. The sheets 2, 4 can be made from transparent thermoplastic material such as polythene, polyvinyl chloride, Perspex (Registered Trade Mark) or glass. Alternatively translucent plastic sheets can be provided on one side of the lamps and fibre on the other side.
Patent GB-819731-A (GB)
Title: Improved seal
IPC: G09F3/03
Filed: 1956-05-01
Abstract: 819,731. Seals. POTTS, F. C. (Etablissement Etipat). May 1, 1956, No. 13330/56. Class 146(2) A seal for strings, wires &c. is formed by a single sheet with two shell-like end portions 1, 2, which may be pressed into each other by bending at a weakened portion 3 and which have resilient locking members 9, 11 which have a, reduced thickness at the points 13 or 21 where they join the end portions. The end portion 1 includes sides walls 4, and a striking table 7 from which the resilient locking member 9 is bent downwardly and rests against a wall 5. The end portion 2 includes side walls 10, the locking members 11 and a free end wall 14 to completely close the seal. The reduced thickness of either the points 13 or 21 allows easy interlocking of the parts while the main seal may be constructed of thick ductile material. The points 13 or 21 are reduced by covering, pressing or hammering.
Patent GB-254283-A (GB)
Title: Improvements in or relating to respiratory head-gear
IPC: A62B18/08
Filed: 1926-05-26
Abstract: 254,283. Drõger, A. B. June 29, 1925, [Convention date]. Respirators. - In respiratory appliances in which the mouth-piece a is supported by straps f, g secured to a headpiece h, the crown k of the head-piece h has secured thereto a guardplate o of leather or other material, the securing means comprising rivets m or sewing, adhesive or other means, and the crown k being stiffened. The guardplate o may be domed as shown and may engage the head along a zone n, or may be shaped to the head and provided with an annular padding member. The zone n may itself be padded. Both the plate o and the head. piece h may be provided with ventilation holes. The Specification as open to inspection under Sect. 91 (3) (a) also describes and illustrates an unpadded guard plate shaped to fit the head. This subject-matter does not appear in the Specification as accepted.
Patent GB-133478-A (GB)
IPC: B41F3/42
Abstract: 133,478. Fraine, H. G. de, and Chamberlain, S. B. Oct. 22, 1918. Inking-apparatus.-Flat inking-tables for multicolour printing are constructed with several sideby-side strips of wood, vulcanite, &c., arranged to form a flush surface, to which colour is applied in bands transverse to the strips, and adapted to be relatively displaced longitudinally by automatic means after the ink is applied, whereby a more gradual blending of the colours is effected by the distributing-rolls. In the arrangement shown in Fig. 1, the strips 1 rest on a plate 2 and carry pintles 3, 9 extending through ribs 4, 10 on the plate. Springs 5, in conjunction with adjustable collars 7 on the pintles 3, retain the strips in normal position whilst they are inked in transverse bands, but permit of their relative displacement, as the table is moved towards the distributing-rolls, by a plunger 12 which is moved against bowls 11 carried by the pintles 9. The ends of the strips embracing the springs may serve as limiting-stops for the displacement. In a modification, the bowls 11 are normally in alinement and are depressed to effect relative displacement by adjustable set-screws or a series of gauges mounted on the plunger.
Patent GB-529376-A (GB)
Title: Improvements in fire guards for domestic grates
IPC: F24B1/192
Filed: 1939-05-05
Abstract: 529,376. Fireguards. DUNCAN, E. S. May 5, 1939, No. 13435. [Class 126] A fireguard of the lazy tongs type is drawn out of a recess A one side of a fireplace straight across fireplace and its end is secured in another A<SP>1</SP> on the other side. Reference has been directed by the Comptroller to Specification 199,995, [Class 126].
Patent GB-436844-A (GB)
Title: Improvements in and relating to vehicle wheel tyres
IPC: B29C70/06
Filed: 1935-05-08
Abstract: The wires 1 of vehicle wheel tyres are coated with rubber latex by mounting them on a collapsable framework 2--5 disposed above a latex containing tank 26, rotating the frame, and raising and lowering the tank so that the rotating wires are alternately immersed in and withdrawn from the latex.  The motor 24, which rotates the frame by a chain 16, also rotates cams 36, thus raising and lowering the tank 26.  The tank may be provided with heating means, and its initial height may be adjusted by nuts 28 on threaded rods 27. <PICT:0436844/III/1> (For Figure see next page.)
Patent GB-127470-A (GB)
Title: Improvements in Fasteners for Drop Stamp Belts.
IPC: F16G3/06
Filed: 1918-08-20
Abstract: 127,470. Alexander, F. W., and Lewis & Tylor. Aug. 20, 1918. Straps and bands.-The ends of looped belts, employed for actuating drop-stamps in printing, embossing, punching, or like operations, are connected to the main portion by a device consisting of a slotted plate a and two clamping-plates b, c tightened by bolts d. The ends e<3> of the belt are passed through the slot in the plate a, which is formed with a number of pointed spikes a<2>, and after being turned back are gripped by the plates b, c. The bolts d lie outside the edges of the belt.
Patent GB-929297-A (GB)
Title: Electrical representation of dimensional data
Inventor: HUNTLEY KEITH GORDON
IPC: G01B11/02
Filed: 1958-04-29
Abstract: 929,297. Electric selective signalling systems. RANK PRECISION INDUSTRIES Ltd. July 17, 1959 [April 29, 1958], No. 13561/58. Class 40 (1). The dimension of an object 15 (in general any light obstruction, solid or liquid, whose light transmission differs from that of air) is determined by scanning the object with a beam of light interrupted at regular intervals along the scan path by a graticule 7 and determining with the aid of a photo-cell 6 the number of light impulses which are not intercepted by the object. The beam of light is produced by a cathode-ray tube 1, the electron beam of which is caused to produce a straight-line scan path greater than and including the dimension to be determined. A telecentric optical system 4, 5 is employed to cause the light beam to occupy successive parallel paths where it traverses the object. The electrical impulses from photo-cell 6 may be subtracted from the contents of a counter which is set before each scan to a count corresponding to the number of impulses which would be generated with no object in position, Fig. 1 (not shown). Alternatively, as illustrated in Fig. 2, the light beam, with the aid of halfsilvered mirror 9 and optical system 10, 11, may be caused to scan also a standard object 13 and produce impulses corresponding to its dimension in a photo-cell 12. The impulses from photocells 6 and 12 are then respectively subtracted from and added to the contents of a counter set to zero before each scan so as to produce a count indicating any difference between the dimensions of the object and standard. To permit the outline of an object to be determined either successive portions of the object are presented to the scanning beam or the object may remain stationary and the scanning beam is caused to sweep over a suitable raster. The impulse information may be converted to analogue form with the aid of an integrator, Fig. 3 (not shown).
Patent GB-1172491-A (GB)
Title: A method of manufacturing a semiconductor device
IPC: H01L29/00
Filed: 1968-03-20
Abstract: 1,172,491. Semi-conductor devices. HITACHI Ltd. 20 March, 1968 [29 March, 1967], No. 13570/68. Heading H1K. In making a semi-conductor device a layer containing a conductivity determining impurity, sandwiched between layers consisting entirely or mainly of an oxide of silicon is formed on a semi-conductor body and the coated body then heated to form a glassy layer, consisting of a mixture of the impurity and oxide, which is spaced from the body by what remains of the lower oxide layer. In a typical case a P-type base region is first formed by oxidemasked diffusion in an N-type silicon substrate. An aperture is then formed by photoresist and etching steps in the oxide over the base region and phosphorus deposited over the entire substrate from a mixture of phosphorus oxychloride and oxygen. This in turn is coated with silicon oxide by decomposition of tetraethoxysilane. Prolonged heating at 1100‹ C. in oxygen causes formation of the emitter zone 18b (Fig. 2g) and a phosphate glass layer 16b sandwiched between the remains of the oxide layers 12, 17. Holes extending to the base and emitter zones are next formed and aluminium vapour deposited overall and shaped to form contacts 23 and 24. Formation of the holes and contact shaping is done by standard photoresist and etching steps. If the diffusion step is prolonged the upper oxide layer becomes converted to glass which is hygroscopic and is therefore preferably not exposed in the finished device. To avoid this a layer of alumina or silicon nitride may be formed on the upper oxide layer prior to diffusion or on the glass formed during diffusion. Suitable methods for forming alumina are deposition from an aluminium organic oxide, and deposition of aluminium followed by oxidation, while silicon nitride can be formed by the pyrolytic reaction of silane and ammonia. Silicon monoxide may replace the dioxide in the first layer and the second oxidic layer may be a silicate or lead glass which may contain alumina and/or boric oxide.
Patent GB-550760-A (GB)
Title: Improvements in the manufacture of bonded electrical insulating material
IPC: H01B3/04
Filed: 1941-10-22
Abstract: 550,760. Compound fabrics. CRADICK. M. J. and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 22, 1941, No. 13587. [Class 140] In electrical insulating materials consisting of layers of mica with or without suitable backing material in which the layers are bonded together by resinous material, such as those known under the Registered Trade Marks " Micanite," " Micafolium," the bonding material is styrol resin or varnish, including monomeric styrene and polystyrene. Linen, cloth, silk, woven glass, matted glass or paper may be used as backing. The styrol resins or varnishes known under the Registered Trade Mark " Distrene '' are suitable.
Patent GB-592732-A (GB)
Title: Power steering mechanism for tractor-trailer combination
IPC: B62D13/00
Filed: 1945-05-30
Abstract: 592,732. Steering trailers. LETOURNEAU, Inc., R. G. May 30, 1945, No. 13594. Convention date, March 4, 1944, [Classes 79 (i) and 79 (v)] [Also in Groups XXI and XXXII] The coupling between a tractor and trailer is arranged to permit of a lateral tilting movement in addition to a power-driven steering movement. The tractor 1, Fig. 1, draws a trailer 19, the example shown being an earth-carrying scraper (see Group XXI), by a goose-neck 25 connected to a ball-and-socket joint 27, the ball being fixedly mounted on the tractor chassis and steering movement being imparted to the trailer through a member 52, An additional pivoting point is provided by the ball and socket joint 30 connected by rod 31 to a second ball joint 32 on a support 33 located between the driver's legs. The ball 29, Fig. 5, of the ball-and-socket connection 27 is mounted in a support 40 on the tractor chassis. Rotatably mounted on support 40 is a gear 43 to the upper face of which is fixed a bracket 51 terminating in a pin 50.' The latter is journalled in the cross arm 54 of a yokeshaped member 52 whose ends carry trunnions 53 supported in the sides of the socket 28 which embraces the ball 29; thus rotation of the gear 43 causes relative movement between the ball- and socket 29, 28 to steer the trailer, at the same time permitting lateral tilting of the trailer about the ball 29. The gear 43 is power-driven in either direction as follows. The gear 43, Fig. 3, meshes with a pinion 56 on a vertical shaft 57 integral with a bevel wheel 61. The latter is in permanent engagement with a pair of bevel pinions 66 mounted freely on the shaft 65. Each bevel pinion 66 is integral with the male portion 72 of a cone clutch, the female portions 73 of which are also freely mounted on the shaft 65 and are continuously power driven through peripheral teeth 75 which are in permanent engagement with a pair of pinions on a rotating shaft (not shown) driven by a gear train from the engine crankshaft. Axial movement of the shaft 65 is arranged to displace also the continuously rotating female clutch elements 73, whereby one or the other of them drives the corresponding male clutch member 72 and pinion 66 thereby rotating the pinion 56 and steering gear 43. Axial movement of the shaft 65 is imparted from the steering wheel 83, link 82 and lever 81 to rotate the sleeve 77 which is threaded in the stationary supporting nut 79. To preserve the setting of the steering and to prevent undue looseness in the steering movements, a pre-set brake 84, Fig. 3, permanently provides a light drag on one of the clutch members 72 and hence on one pinion 66 and on the steering gear 56, 43.
Patent GB-831676-A (GB)
Title: Improvements in or relating to lubricating devices for the pressure feed lines of pneumatic tools
Inventor: KIRSCHBAUM HEINRICH
IPC: F16N7/34
Filed: 1958-04-29
Abstract: 831,676. Percussive tools. FLOTTMANN, F. H., [trading as INGENIEURBURO DIPL. ING. F. H. FLOTTMANN.]. April 29, 1958, No. 13637/58. Class 124. [Also in Group XXXIV] In a lubricator for the pressure feed line of a pneumatic tool comprising a piston 11 disposed in a cylinder 13 and loaded by air pressure to force lubricant from the space 12 in front of the piston 11 out through a nozzle 22 where it becomes entrained with compressed air which passes from inlet 4 through passages 3 to outlet 5, a cut-off valve 10 is provided with a stem 16 arranged in a telescopically displaceable manner on the piston rod 14 and is held during operation intermediate two valve seats 8, 9 by a spring 19 acting against the pressure of the compressed air in the inlet 4. When the oil space 12 becomes empty, the valve 10 is drawn on to its valve seat 9 by means of the piston rod 14, as shown in Fig. 2, thereby interrupting the flow of compressed air and stopping automatically the pneumatic tool. Unscrewing filler plug 24 permits the passage of compressed air through conduits 26, 25 to the oil space 12 and the piston 11 is urged back into its normal position. Also the space behind the piston is ventilated through conduits 28, 27 and 29. If the end connections 4, 5 inadvertently are connected the wrong way round in the supply line, the valve 10 is forced against its seat 8 thereby preventing operation of the pneumatic tool without lubrication.
Patent GB-167857-A (GB)
Title: Improvements in or relating to ladies' handbags
IPC: A45C13/04
Filed: 1920-05-18
Abstract: 167,857. Wells, P. C. May 18, 1920. Hand-bags.-A ladies' hand-bag comprises a jointed mouth frame 1, 2 and a flexible bag portion which can be readily detached from or attached to the frame by means of wires 5, 6 pivoted near the joint-pins 4 of the jaws, threaded through a tuck in the edge of the bag, and held in place in the channelled part of the sheen by engagement behind studs 8, 9 on the joint-pins. The channelled part of the sheen may be discontinuous, or the jaw of the bag may be in sections clipped successively on the wire. To free the wires from the channels, the mouth frame is opened more than normally so that slots 10, 11 in the studs 8, 9 register with the ends of the wires and allow them to be pulled out. To restrict the normal opening of the bag, rings 12, 13 are arranged, when placed horizontally, to engage wires 14, 15 when the bag is opened. The carrying-handle 16 is attached to these rings which, when engaging the tops of the wires 14, 15, assist in keeping the bag closed. In a modification, one end of the wires 5, 6 is threaded and engages with a similar thread in the jointpins 4, which in this case are rotatable.
Patent GB-198362-A (GB)
Title: Improvements in electric condensers
IPC: H01G4/30
Filed: 1923-05-23
Abstract: 198,362. Dubilier, W. May 23, 1922, [Convention date]. Condensers. - A condenser comprises a stack of interleaved sheets of conducting and insulating material clamped together by one or more members 4, preferably tubular in form, which extend through the stock and are riveted over at their ends 5, 6 to compress opposite faces of the stack. The members 4 may form the terminals of the condenser, or terminal clips 10, engaging alternate conducting sheets at each side of the condenser, may be provided. Bearing plates 15 of fibre or other insulating-material are provided at each end of the stack, and high resistance particles may be deposited on the surfaces of these plates to constitute a grid leak. This may be done by drawing a line 16 with a pen or pencil between the terminals 10, Fig. 1. A number of condensers may be clamped together by bolts or screws extending through the members 4. Specification 134,517 is referred to.
Patent GB-461665-A (GB)
Title: Improvements in or relating to sulphur burning apparatus
IPC: C01B17/54
Filed: 1936-05-14
Abstract: 461,665. Sulphur burners. TEATINI, D. May 14, 1936, No. 13715. Convention date, May 17, 1935. [Class 51 (ii)] A sulphur burner comprises alternating cooling-boxes r<1>, r<2> and hearths a<1>, a<2> fed with molten sulphur from melting-chambers c<1>, c<2>, the air for combustion being supplied at the middle of the hearths through openings p<1>, p<2> and the sulphurous gases being taken off around the periphery. As shown, there is a melting- chamber for each hearth, but the uppermost hearth may feed the lower hearth or hearths by overflow. The offtake openings b<1> lead to an annular exhaust chamber l, in which are arcuate melting-chambers. The under sides of the cooling-boxes are formed with deflectors q to direct the incoming air over the surface of the sulphur.
Patent GB-495825-A (GB)
Title: Improvements in or relating to the production of cellulose ethers
IPC: C08B11/22
Filed: 1937-05-14
Abstract: Cellulose ethers are isolated from their solutions in volatile organic solvents by bringing the finely divided solution progressively into contact with a large bulk of steam or water maintained at a temperature substantially higher than the boiling point at the prevailing pressure of any volatile organic solvent present, so that an escape in gaseous form of the solvent from the cellulose derivative during precipitation takes place as quickly as the latter is introduced.  The solution of cellulose ether may first be converted into an emulsion.  In an example, alkali cellulose is etherified by means of ethyl chloride in the presence of benzene, and turkey red oil and water are stirred into the reaction mass.  The resulting emulsion is thinned with benzene and ethyl alcohol and run slowly into boiling water continually heated by the injection of live steam.  In another example, cellulose is etherified by means of propyl chloride in the presence of benzene, and the emulsion obtained therefrom is precipitated as in the previous example.  In a third example, an emulsion of ethyl cellulose obtained by the etherification of cellulose in the form of granules, is precipitated as in the first example.  In a fourth example, cellulose in the form of chips is etherified, and the crude ethyl cellulose solution is sprayed downwards into a large bulk of steam passing upwards.  In the fifth example, an emulsion obtained from the etherification product of cellulose in the presence of benzene is thinned with benzene and alcohol, and run in a stream into boiling water.  The product is obtained in a fine, fluffy, fibrous form.  Specifications 336,235, [Class 2 (ii)], 356,956, 432,277, and 475,466 are referred to.