baber/WOPTO huggingface dataset:
Patent GB-253999-A (GB)
Title: Improvements in latches
IPC: E05B65/22
Filed: 1925-03-24
Abstract: 253,999. Page, S. E., (Stone, J. N., and Bradbury, Stone, & Cu.). March 24, 1925. Latches, sliding.-A sliding latch is retracted against its spring by one arm of a bell-crank lever pivoted in the latch casing, the other arm engaging one end of a long lever pivoted at its other end and actuated by manual pressure between its ends. in the form shown in Figs. 1 and 3, the latch bolt f is pressed outwards by a spring g and is retracted by one arm of the lever d pivoted at e and acted upon bv the spring h. The long lever a is pivoted at band actuates the lever d to withdraw the latch when pressed downwards. A part a<1> projects above the edge of the door for receiving the manual pressure. An antifriction roller c is provided between the levers. In the form shown in Fig. 4, the lever takes the form of a rod a pivoted at b, one such rod being situated at each side of the door. The lever a actuates a bell-crank lever to withdraw the bolt f in the same manner as before.
Patent GB-1418021-A (GB)
Title: Retaining or adjusting devices
IPC: F16B39/282
Filed: 1972-02-21
Abstract: 1418021 Bolts PLASTIC SCREWS Ltd 21 Feb 1973 [21 Feb 1972] 7988/72 Heading F2H In a retaining or adjusting device 1 a screw of synthetic plastics material has a threaded shank 3, a head 2 and a resilient element 5 and the element 5 is resiliently displaceable with respect to the shank 3 and co-operable with a member to be retained or relative to which adjustment is to be effected. The resilient element 5 may comprise a number of circumferentially displaced struts 7 connected at one end to the head 2 and formed with or without an annular skirt 6 at the other. The skirt 6 may be formed with or without pips 8. In an alternative arrangement, Figs. 5 and 7, the bolt 13 may be formed with an annular skirt 18 having a plurality of internally formed grooves 19 engageable with one or more ribs 26 formed on a boss 25 of an adapter 22. The device may also be applied to pins or nails.
Patent GB-772238-A (GB)
Title: Improvements relating to machines for generating gears
IPC: B23F5/20
Filed: 1954-07-30
Abstract: 772,238. Gear-cutting. GLEASON WORKS. July 30, 1954 [Aug. 6, 1953], No. 7996/56. Divided out of 772,237. Class 83 (3). A gear-generating machine comprises a generating-train connecting the rotary workspindle 27 and a movable carrier 28 for the toolsupport or spindle, a unidirectionally-rotatable cam 102, means 107 operable by the cam for oscillating the generating-train, means connected to the generating-train and including an intermittent-drive mechanism having rotatable drive and driven-members 124, 134 for periodically rotating the work-spindle relatively to the carrier, means 126 connecting the cam and drive-member for rotation, and means 142, 145, 146, 148 also operable by the cam for periodically shifting the drive-member axially into and out of engagement with the driven-member. The machine is identical with that described in Specification 772,237.
Patent GB-1505803-A (GB)
Title: Helmets for divers
IPC: B63C11/06
Filed: 1976-03-01
Abstract: 1505803 Diving helmets B B MORGAN and R R KIRBY 1 March 1976 [6 March 1975] 07998/76 Heading A3V A diving helmet 10 comprising a rigid helmet body 12 has a fluid-tight window 14 and a lower body portion 18 defining access opening 16. Air inlet 28 and outlet 26 elements pass through the helmet body which has a tubular, flexible, fluid impervious neck dam 46. A collar 42 of resilient material filled with liquid or gas can be stretched over the head of the diver and is compressed axially to seal against the helmet and the diver's neck by a rigid yoke 66 secured to an anchor ring 50 which is secured by a toggle latch 52. Release of latch 52 breaks the seal to permit easy removal of the helmet even when low pressure had existed in the helmet.
Patent GB-808098-A (GB)
Title: Improvements connected with the conveying of pulverulent and granular material
IPC: B60P1/38
Filed: 1957-03-12
Abstract: 808,098. Unloading storage chambers from below. FULLER CO. March 12, 1957 [April 18, 1956], No. 8114/57. Class 78 (1) and 78 (4). [Also in Group XXXII] A device for unloading storage bins from below has a materialreceiving casing 19 supported by means which press it against the discharge opening of the bin it is to unload. As illustrated the container 19 has two flanged openings 15, 151 provided with resilient seals 16, 16<SP>1</SP> which are pressed upwardly against flanges on the gates 17, 17<SP>1</SP> of a pair of hoppers 12, 121 forming the body of a vehicle. The device is located below the hoppers by a winged nut 39 engaging lugs on the device and on the hopper 121 and the upward pressure is furnished by the suspension for the wheels 42 which are carried by bell-cranks 44 biased by hydraulic or pneumatic rams 51 connected to a constantpressure accumulator fed from a manuallyoperated pump or from a motor-driven gear pump (not shown). The casing 19 includes an air-assisted gravity conveyer extending from one end to the other to feed a vaned rotor disposed in a casing 21 and feeding a pneumatic conveyer line 26 in the usual way. The pneumatic supply to the apparatus is connected to an inlet 34 and is distributed by valves which control its admission to the air-assisted conveyer, to the pneumatic line 26, and to lines which couple to the air inlets of air-assisted conveyers on the vehicle. The vehicle to be unloaded may be of the type described in Specification 677,890 and the air-assisted conveyers may be similar to those shown in Specification 674,395. The rotary feeding device 21 may be similar to that described in Specification 724,719.
Patent GB-145869-A (GB)
Title: Improvements in or relating to telephonic repeaters
IPC: H04B1/58
Filed: 1919-04-01
Abstract: 145,869. Robinson, C., and Chamney, R. M. April 1, 1919. Telephonic repeaters; phantomcircuit systems.-In telephonic repeaters of the kind in which a transformer has two sets of line windings and also additional windings connected respectively to the input and output circuits of an amplifier, the transformer is so designed that the amplified current in the output windings does not produce a flux in the core of the input winding. The transformer A, Fig. 1, has three limbs, of which the outer ones carry the line windings B, B<1>, and the central limb C carries the input winding connected to the grid circuit of the valve amplifier D, the plate circuit of which is connected to windings E, E<1> on the outer limbs. Speech currents over either line act through the coil C on the grid circuit, the plate current producing magnified effects in both line circuits, but equal and opposite effects upon the coil C and input circuit. Two such repeaters may be cross-connected so that the magnified current from the amplifier fed by one transformer is supplied to the other transformer, and one of the line windings of each transformer is connected to an artificial line. The invention is also applicable to the repeaters described in Specifications 131,113 and 131,114; and to phantomcircuit working. The transformer is formed of a number of E-shaped stampings of two kinds arranged alternately so as to form a core which is continuous with the exception of two narrow air-gaps H, Fig. 8, in the outer limbs of the core. The one kind of stamping has all its limbs of the same length and long enough to reach from one side of the core to the other; the other kind is made with two body parts, each having two short outer limbs and a central limb which is integral with the other. The stampings are clamped by bolts between wood blocks, and the whole enclosed in a sheet-iron case. An additional winding may be provided on the transformer to listenin at the repeater station.
Patent GB-1112075-A (GB)
Title: Cellulose ester coating compositions
IPC: C08L61/20
Filed: 1966-02-25
Abstract: A composition for use in coating comprises as film-forming component; (a) at least 3% by wt. of a fatty acid ester of cellulose containing fatty acid radicals of 2-4 C atoms; (b) 10-50 parts by wt. of a melamine-formaldehyde resin and, (c) 20-60 parts by wt. of an alkyd resin or an acrylic resin.  The specified cellulose is cellulose acetate butyrate, which has a butyryl content of 45-56%, an acetyl content of up to 5%, a hydroxyl content of 0.05-5.0% and an intrinsic viscosity range from 0.2-1.0.  The melamine-formaldehyde resin may be butylated or hexamethoxymethylated.  Alkyd resins used may be oil-free or oil-modified.  Optional additives include pigments, e.g. TiO2 or aluminium powder; or organic dyes or solvents.ALSO:An article, e.g. a car body, is coated with a composition comprising (a) at least 3% by wt. of a 2-4 C atom fatty acid ester of cellulose, (b) 10-50 pts. by wt. of a melamineformaldehyde resin and (c) 20-60 pts. by wt. of an alkyd resin or acrylic resin.  The dried coating may be sanded down smooth, and then baked to melt it such that the sanding marks disappear, and the final coating has a very high gloss.
Patent GB-874389-A (GB)
Title: Improvements in centrifugal wind classifiers
IPC: B07B11/04
Filed: 1960-03-09
Abstract: 874,389. Pneumatic separation. BAHCO A. B. March 9, 1960 [March 12, 1959], No. 8316/60. Class 117 Granular material fed through a funnel 35 flows over a cone 21 and on to a rotary bladed disc 26 driven by an electric motor 23, and is thrown into a cylindrical separating chamber 8 to which an air stream is fed via a longitudinally arranged inlet 2. The course fraction passes to a section 3 whereas the finer material is carried with the air stream through an outlet 6. The bottom wall of the separating chamber comprises a disc 9 which is rotated by the exhausting air acting upon a turbine wheel 11, 12 secured to the disc and supported by a bearing 14. The disc 26 gives a tangential velocity to the material which is approximately equal to that of the air stream at the disc periphery. A damper 41 adjusts the width of the air inlet, and the effective height of the separating chamber is adjusted by raising or lowering its upper wall comprised by the disc 26. The disc, cone and funnel assembly, with casing 17, 18, is raised or lowered by a crank 29<SP>1</SP> which, via a chain and sprocket drive 28, 29, rotates spindles 30 threaded in nuts 33 fixed to tubes 34 secured to brackets 17<SP>1</SP>.
Patent GB-1523301-A (GB)
Title: Compensation of differential temperature drift
IPC: G01G3/14
Filed: 1976-02-26
Abstract: 1523301 Temperature compensation for electronic instruments W & T AVERY Ltd  26 Feb 1976 [28 Feb 1975] 8380/75 Heading G1N The output of an electronic instrument mounted in a housing is compensated for the effects of temperature gradients existing in the housing. An electronic weighing machine of the type shown in Patent No. 1263182 and including a platform supported by a load receiving member mounted in cantilever fashion by three flexure strips forming a parallelogrammic linkage, one of which strips carries strain gauges has the strips enclosed within a housing which also contains a power supply and digital display circuitry. The temperature in the housing due to the electrical equipment is not uniform and can result in a change in the geometric configuration of the transducer resulting in erroneous results. To compensate for these effects a pair of temperature sensitive elements such as thermistors, thermocouples or temperature dependant resistors are mounted at spaced apart locations in the housing and connected in series. Two such resistors in one embodiment have equal temperature coefficients so that the change in voltage at the junction thereof is indicative of the temperature difference between the locations whereas changes in absolute temperature have no effect. The junction point is connected via a resistive network to the non-inverting input of a unity gain differential amplifier to the inverting input of which is applied the transducer output. By adjusting the resistive network the magnitude of the change due to temperature difference is made equal and opposite to the change occurring in the signal derived from the transducer due to temperature difference and compensation is achieved. Compensation signals dependant on both differential and absolute temperature may be produced if resistors of unequal temperature coefficients and/or unequal value are used. The temperature sensitive resistors may be connected in a bridge circuit. A plurality of pairs of resistors may be used located at different positions.
Patent GB-1097318-A (GB)
Title: Luggage
IPC: E05B65/52
Filed: 1965-05-25
Abstract: 1,097,318. Edge-strip for a suitcase. PRESTO LOCK CO. Inc. May 25, 1965 [July 28, 1964], No. 8388/67. Divided out of 1,097,316. Heading B8P. An edge strip A for a suitcase comprises an inward facing channel to house the latch D, fitted through a hole 34 in the web. The edge strip A may have further outward facing channels, the flanges 24, 26 of one having teeth 28, 30 to grip the edge of one shell C of the case, and the other channel 40 receiving the edge of the other shell C<SP>1</SP> and having an aperture for the hasp on the shell C<SP>1</SP> to engage the latch D. The edge strip A may be an extrusion of magnesium, steel, plastics, or preferably aluminium alloy. The shells C, C<SP>1</SP> may be of moulded plastics, drawn aluminium or magnesium alloy or leather. The latch D may be as claimed in Specification 1,097,316.
Patent GB-790232-A (GB)
Title: Hydraulic feeding mechanism for the tool or workpiece carrier of a machine tool
Inventor: WADDINGTON LEONARD
IPC: B23Q5/033
Filed: 1955-03-23
Abstract: 790,232. Planing. PLANERS (HUDDERSFIELD), Ltd. May 1, 1956 [March 23, 1955], No. 8427/55. Class 83(3). A planing or other machine-tool, with means for feeding the work or tool between each working stroke, comprises an hydraulic motor 10 connected to a rotary shaft 80 through a oneway clutch 88, a rotatably mounted arm 140, two stops 144, 146 in the path of the arm, at least one (146) of which is adjustable, an overload-valve in the hydraulic circuit, and means 130, 132 actuated at the end of each stroke of the machine to reverse the motor. Through worm-gearing 46, the motor rotates a shaft 44 to which can be connected either of two gears 48, 50 according to the setting of a lever 66 controlling a clutch 56, 60. When the gear 48 is engaged it conveys a continuous-drive in either direction to one of three feed-shafts 36, 38, 40, through a gear 82 and one of three clutches 110 selected by hand-levers 114. Shafts 36, 40 are screws to feed the tools along a cross-slide, and shaft 38 is a vertical-feed-shaft. When the clutch 56, 60 is moved to drive the gear 50, a switch 124 is released to cut-off a continuous supply of fluid to the motor 10, and a switch 126 is closed to make operative the two limitswitches 130, 132 actuated by dogs 136, 138 on the work-table 135 prior to the actuation of a table-reversing-switch 134. The gear 50 conveys a drive in one direction only to one of the shafts 36, 38, 40, through gears 84, 86, and the one-way clutch 88, and the limit-switches 130, 132 cause power to be supplied to the motor 10 in alternate directions for as long as they are depressed by the dogs 136, 138. The rotationalmovement of the motor 10 is determined by adjustment of the stop 146. When the stop 140 engages the stop 144 or 146, the motor stalls and is relieved by the overload-valve. The switches 130, 132 may be set to give a feed movement at the end, or beginning, of a working-stroke.
Patent GB-477306-A (GB)
Title: An internal combustion engine having a cylinder of annular shape
IPC: F02B53/00
Filed: 1936-03-20
Abstract: 477,306. Rotary internal-combustion engines. LARIBE, A. March 20, 1936, No. 8446. Void. Convention date, March 20, 1935. [Class 110 (ii)] An internal-combustion engine of the gearedvane type has a pair of vanes 6 secured to a hollow shaft 4 and another pair 10 secured to a sleeve 7 extending over the hollow shaft at one side, the sleeve and shaft at this side having lugs 11, 12 to which are pivotally attached the ends of jointed link pairs 15 which link pairs are each provided at the apex with a roller 17 running on a fixed cam 17<1> to cause the link pairs to open out and close up so as to give the necessary separating and approaching movement to the two sets of vanes. The engine works on a two-stroke cycle. Air is drawn in through the hollow shaft and past a valve 24 in the rear face of the vanes 10 on one stroke and on the next stroke is compressed and transferred, at the end of the stroke, through a valve 21 to the front of such vanes 10 to effect a scavenging and charging action. During these two strokes, the previous charge of air at the front of the vanes 10 was compressed and then fuel was injected at nozzles 20 ; the driving stroke followed and towards the end of such stroke the exhaust valves 25 opened. The transfer valves 21 are opened when cam extensions 23 on the vanes 6 engage the bell-crank levers 22 pivoted in the vanes 10 and operating the valves 21. For starting, a valve 19 is provided. A hot cylinder-head 27 is provided in the vanes 6. A number of engines differently set may drive the same shaft. The vanes are packed by spring- or gas-pressed graphited bars 31. The water jacket has cooling fins 28.
Patent GB-550458-A (GB)
Title: Improvements in or relating to the treatment of textile and other materials
IPC: C08B3/16
Filed: 1941-07-07
Abstract: 550,458. Cellulose derivatives; artificial yarns etc.; waterproofing cellulosic materials. MONCRIEFF, R. W., and BATES, H. July 7, 1941, No. 8542. [Class 2 (ii)] [Also in Group VIII] Yarns, cords, foils, and other materials made of cellulosic substances containing free hydroxy groups are reacted with a mixture of an ester of an organic acid containing at least six carbon atoms and the anhydride of an organic acid containing a smaller number of carbon atoms under such conditions that the structure of the materials is maintained and the reaction is continued until their wet strength is improved. The process may be used in the treatment of yarns or fabrics used for parachute fabrics or cords, or tent- or sail-cloths which may become wet during use. The materials may be made of regenerated cellulose, cellulose organic derivatives, cotton, or linen. Yarns and other materials made of high viscosity cellulose derivatives or regenerated cellulose materials made by saponification of such cellulose derivative materials may be subjected to the treatment. The organic ester may be an ester of an organic acid containing twelve or more carbon atoms, and the anhydride may be acetic, propionic, or butyric anhydride. The organic ester may be a natural ester such as beeswax or a synthetic ester such as ethyl laurate, palmitate, or stearate. The treatment may be effected by heating the materials in a non-solvent medium comprising the ester and anhydride dissolved in a liquid such as benzene, toluene, or isopropyl ether, which is a non- solvent for the materials, or the treatment may be effected by immersing the materials in such a medium, removing the impregnated materials and heating them in the absence of liquid medium. In an example, a fabric made of regenerated cellulose yarns obtained by stretching cellulose acetate yarns and then completely saponifying them is well scoured, washed, dried, and then impregnated with a warm solution of beeswax, acetic anhydride, and benzene. The fabric is removed and liquid expressed. The fabric is dried at room temperature and then heated. The Provisional Specification includes also the treatment of yarns and other materials made of substances other than cellulosic substances.
Patent GB-551920-A (GB)
Title: Improvements in electrical conductors
IPC: H01B13/08
Filed: 1941-07-07
Abstract: 551,920. Electric conductors. FINLAYSON, D., GREENWOOD, E. L., and SIMPSON, W. J. July 7, 1941, Nos. 8544/41, 10807/41 and 2573/42. [Class 36] Wire, particularly fine wire of 33 to 50 S.W.G., is insulated for use as an electric conductor by lapping it with fine artificial filaments having a denier not greater than 1.5 and consisting of thermoplastic, electrically-insulating material, the filaments being then caused to coalesce to form a continuous cover for the wire. The filaments may be made by stretching pre-formed filaments, with or without subsequent shrinking to increase their extensibility, or they may be made in the first instance as by extruding a low concentration solution of cellulose acetate through fine orifices. Other derivatives of cellulose may be used, such as cellulose propionate and butyrate, or mixed esters such as cellulose acetate-propionate or acetate-butyrate, or ethers such as ethyl or benzyl cellulose. In lapping, the filaments are preferably employed as a thread or bundle, with little or no twist, obtained by taking up the filaments as extruded on large diameter take-up means from which they are then wound in the form of cheeses &c. ; lubricant may be supplied such as 20 per cent by weight triethanolamine oleate, 5 per cent oleic acid and 75 per cent mineral oil. Lapping may be in one or more layers and is preferably effected at such a speed that the angle between the filaments and the axis of the wire is less than 45 degrees. Coalescing of the filaments may be effected by heat alone, and to such degree as to give a transparent or semi-transparent uniform covering, or assisted by a medium or high-boiling solvent or plasticizer which allows the filamentary structure to remain in part. Heating may be effected in an enamelling furnace, or by radiant heat from infra-red lamps preferably provided with elliptical reflectors and having the filament of the lamp at one focus of the ellipse and the path of the wire at the other focus. A high boiling plasticizer may comprise dicresyl glyceryl ether or its acetate, diethyl phthalate, or triacetin, and be applied by passing the covered wire through a solution of the plasticizer in methylated spirit &c. which is removed by passing the wire through warm air; a low boiling plasticizer may comprise diacetone alcohol or glycol mono-acetate and be applied similarly, or the wire may be run through the solution before lapping. Coalescence of the filaments may be effected without heat by running the lapped wire through a bath of softening agent such as acetone or methyl ethyl ketone, with diluents such as benzene or alcohol. A distinctive appearance may be given as by dyeing the filaments or incorporating finely divided pigment in the spinning solution from which the filaments are formed. The wire may be enamelled before being lapped with the filaments, or a coating of silk may be placed over the filament lapping. Examples are given.
Patent GB-216976-A (GB)
Title: Improvements in and relating to fixing solutions for photography
IPC: G03C5/38
Filed: 1923-03-26
Abstract: 216,976. Bolton, R. W., and Cavendish's Ltd. March 26, 1923. Fixing.-Glucose, sodium silicate, and formalin are added to a photographic fixing solution. In one example, an aqueous solution containing sodium hyposulphite, potassium metabisulphibe, and acetic acid, ir. addition to the above, is used. Examples are given of the proportions used, and of the method of preparation.