baber/WOPTO huggingface dataset:
Patent GB-476185-A (GB)
Title: Improvements in or relating to electric battery lamps
IPC: F21L4/00
Filed: 1936-06-16
Abstract: 476,185. Electric - battery lamps. WISEMAN, S. June 16, 1936, No. 16794. [Class 39 (ii)] In an electric-battery lamp with a twopart casing in the form of a box or container 10 with a removable cover 11, the cover is held upon the container by the clamping action of a reflector 16 or like member which is connected in a readily detachable manner to the container and arranged to abut against an outwardly directed surface on the cover 11. In the example the bottom of the container 10 is provided with an inwardly projecting part 20 formed with a screw-threaded socket 19 to receive a screw-threaded extension 18 on the reflector 16, a flange 15 being provided on the outer periphery of the reflector to engage the rim of a short tubular extension 13 on the cover 11. Alternatively the projecting part 20 may be extended and shaped to interengage a securing-member constituted by a clamping-ring or lens carrier, without the provision of a reflector. The lamp bulb 17 is mounted in a socket 14 carried at the end of a screw-threaded metal rod 21 which passes through a screw-threaded eyelet 32 embedded in the moulded insulating material of the container 10, an external operating-knob 23 being provided on the rod 21 so that the focusing of the bulb can be adjusted. The inner end of the rod 21 forms the centre contact of the bulb socket, and the eyelet 32 is connected by a metal strip to the casing of one of the cells, there being a cell disposed at either side of the insulating socket 20. The centre pole of the second cell 25 abuts against one end 28 of a metal strip 27 which at its other end, is formed as a resilient tongue 29 extending through a slot 30 in the insulating socket 19 into contact with the metal cap of the bulb 17. The bulb can thus be retained in a set position by tightening the reflector 16 so that its screwthreaded end 18 bears upon the spring tongue 29 and clamps it against the lamp cap. The switch for the lamp comprises a metal strip which is slidable within the casing under the actuation of an externally projecting member, one end of the strip being in permanent sliding contact with the centre pole of one cell, while the other end is put into or out of contact with the metal casing of the other cell.
Patent GB-245362-A (GB)
Title: An improved process and apparatus for the manufacture of sheet glass
IPC: C03B17/02
Filed: 1925-06-30
Abstract: 245,362. Marks, E. C. R., (Danner, E.). June 30, 1925. Drawing; coloured glassware. - A process for forming obscured or tinted sheet glass consists in flowing two or more streams of glass, differing in kind or colour, through a tempering atmosphere in order to bring them to approximately the same temperature, and then causing the streams to unite to form a single sheet. The molten glass flows from tanks 1, 2 through horizontal spouts or forehearths 3 to a common discharge outlet 4 which consists of an elongated slot transverse to the axis of the forehearths. The glasses in the tanks may have different colours or character istics, and during their flow through the forehearths are brought to approximately the same temperature. A partition wall 5 disposed in the slot 4 separates the glasses, and a directing-slab or member 6 extends downwards from the slab 5. The glasses flow down each side of the slab 6 and unite at its lower edge to form a single sheet a. In a modification, an individual directing member is provided for the glass flowing through each of the slots 4, the slabs converging to one another so that the four streams of glass flowing down their sides unite to form a single sheet. In another modification, the slab 6 may extend upwards through the slot 4 in place of the wall 5. A third supply of glass can then be fed on to the top of the slab. In all cases the slab extends downwards into a heating chamber, formed by walls 11, to enable the temperature of the flowing glass to be regulated.
Patent GB-109700-A (GB)
Title: Improvements in or relating to Lathes.
Inventor: DRUMMOND ARTHUR
IPC: B23Q23/00
Filed: 1916-11-25
Abstract: 109,700. Drummond, A. Nov. 25, 1916. Turning.-An axial correcting-movement is given to the lead-screw B of a lathe bv means of a wedge carried by a spring-controlled lever e provided with a point e<3> which engages a cam plate D pivoted to the saddle and which runs on a roller d'. The lever is provided with a flat surface which engages an abutment g<1>. The end of the screw is supported by a sliding bearing carrying a wearing block against which a ball engaging the screw bears. The inclined surface may be carried by the lever and engage an inclined abutment. The bearing of the screw may be mounted in the end of a pivoted lever. An intentional progressive error may be introduced into the screw cut to compensate for expansion or contraction by attaching to the cam plate D an inclined sloping surface engaging the roller d<1>.
Patent GB-193337-A (GB)
Title: Improvements relating to ozone apparatus
IPC: C01B13/11
Filed: 1922-06-21
Abstract: 193,337. Quain, J. R. June 21, 1922. Gases, treating electrically.-In an ozone generator, one or more tubular silica dielectrics in interrupted contact with electrodes are arranged vertically so that air has free access to their inner and outer surfaces and the electric supply is such that sufficient heat is generated to promote upward air currents without decomposing the ozone or producing nitrogen oxides. A suitable pressure is 10,000 volts per millimetre thickness of the silica dielectric; this thickness may be 1-2 mm. The silica tube 1 is shown supported between a perforated base 4 and perforated lid 7 of a box 6, and surrounded by a wide tube 5 of vulcanized fibre. Electrodes may consist of coils of wire of aluminium alloy, of about 2 mm. diameter, the coils being spaced by a similar distance; or cylinders of perforated sheet, which may be corrugated, may be used. The resilience of the electrode ensures contact with the dielectric. If sufficient heat to produce the necessary circulation is evolved, a carbon-filament tubular lamp, or the transformer coil 12 furnishing the current, may be inserted within or mounted below the silica tube. Noise is also checked by this arrangement of the transformer coil, or by placing a similar non-resonant core within the tube. A coating of wax may protect the transformer from the ozone. A number of tubular dielectrics, narrower than that shown. may be mounted in common upper and lower plates. The primary of the transformer is in series with an interrupter coil or rotary converter. The interrupter may be shunted by a condenser, and may rest on a felt pad, to reduce noise. By means of a, switch actuated by an insertion plug, current from the secondary circuit may be diverted to a high-frequency applicator for therapeutic purposes. Speoirications 4355/13 and 166,197 are referred to.
Patent GB-567778-A (GB)
Title: Improvements in or relating to the photo-polymerisation of ethenoid compounds
IPC: C08F2/46
Filed: 1942-12-01
Abstract: A photopolymerizable compound, containing a CH2 = C< group, is mixed with a minor proportion of an alpha - carbonyl alcohol, R-CO-CHOH-R1 (R and R1 are the same or different and are H or monovalent hydrocarbon radicals), and is polymerized by the action of light. Copolymers or heteropolymers may be formed by carrying out the process in the presence of another unsaturated compound containing a >C = C< group.  The polymerization may be carried out by the bulk, emulsion, granular and solution methods, and a peroxide catalyst, e.g. hydrogen peroxide may also be present.  Preferred alpha-carbonyl alcohols are the acyloins; but glycollic aldehyde, 3-hydroxy-4 - methyl - pentanone - 2, 12 - hydroxy - 13 - keto - tetracosane, as well as benzoin, acetoin, butyroin, toluoin, tert.-butyl benzoin and o- and p-tert.-butyl toluoin are specified.  The photopolymerizable compounds may be vinyl acid vinylidene esters of organic and inorganic acids, e.g. vinyl chloride, acetate, chloroacetate, vinylidene chloride; vinyl ethers, e.g. divinyl ether; vinyl ketones, e.g. methyl vinyl ketone; styrene; dienes, e.g. chloroprene and isoprene; chloroacrylic esters; acrylo- and methacrylonitriles and amides, and alkyl esters of acrylic and methacrylic acids.  Diethyl furmarate may be copolymerized with the photopolymerizable compound. Examples are given of the photopolymerization of methyl methacrylate in the presence of benzoin, 3-hydroxy-4-methylpentanone-2, butyroin, tert.-butyl benzoin, toluin, tert.-butyl toluoin, 11-hydroxy-12-ketotetracosane, glycollic aldehyde or acetoin; and of the use of benzoin in the photopolymerization of isopropyl, n-butyl, 2-nitropropyl, and betadimethylaminoethyl methacrylates, vinyl formate, acetate and chloride, asym.-dichlorethylene, styrene, methyl alpha-chloroacrylate, divinyl ether, acrolein, acrylonitrile, methyl vinyl ketone N-methyl methacrylamide and methylene diethylmalonate. Examples are also given of the interpolymerization under the action of light and a small amount of benzoin of vinyl acetate, and (1) a diethylene glycolmaleic anhydride condensation product, or (2) methyl methacrylate; and of a method of filling holes in any material to which the filling material will adhere by the use of a dough containing methyl methacrylate monomer and polymer, lauryl peroxide and benzoin, which is polymerized by ultra-violet light. Specification 567,776 is referred to.
Patent GB-447859-A (GB)
Title: Improvements in and relating to refrigerating machines
IPC: F25D21/04
Filed: 1935-06-14
Abstract: 447,859. Refrigerators. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. June 14, 1935, No. 17208. Convention date, June 14, 1934. [Class 29] A refrigerator cabinet is formed of inner and outer walls 12 and 13, heat insulating material filling the space between the walls and the compressor of the refrigerating machine being embedded in the insulation. The compressor with its motor may be constructed as a unit in a casing 15 as described in Specification 447,318, [Group XXVI]. Refrigerant is led from the compressor by pipe 18 to the condenser 19 which consists of coils of tubing secured to the inner side of wall 13. Liquid refrigerant is led from the condenser to float chamber 21, which supplies the evaporator 24. Gaseous refrigerant is returned to the compressor through connection 29. The compressor is lubricated by a rotary pump, mounted on the compressor shaft, which draws oil from a sump 30. The oil from the compressor passes through a cooling radiator 31 similar in construction to the condenser 19. Oil from the radiator is discharged through connection 73 on to a dome covering the top of the compressor motor. The oil flows over the dome and down the outer surfaces of the motor and compressor to the sump 30 and thus cools the machine. A corrugated baffle is provided between the motor and compressor unit and the casing to constitute a frictional support for the unit.
Patent GB-173025-A (GB)
Abstract: 173,025. White, T. W. Proffitt-. Sept. 10, 1920. Lighting burners by electric devices.-In means for igniting the lamps of motor vehicles by diverting the high-tension ignition current to sparkgaps arranged over the lamp burners, a switch fitting adapted for attachment to one of the sparking-plugs of the engine is provided. The fitting comprises a box a of insulating-material having a raised portion b forming a shroud over the plug which, in the form shown in Fig. 1, is permanently connected to the high-tension supply cable f by a metal strip i. The box is provided with a lid k secured in position by a spring clip so as to make a moisture-tight joint, the lid being provided with a terminal l, to which a cable j leading to the spark-gaps at the lamp burners is secured. Disposed transversely of the box is a spindle m carrying a switch blade n, which may be operated against a bow-spring p by an insulating knob arranged on the spindle outside the box so as to contact with the terminal l to ignite the lamps by sparks at the gaps at the lamp burners. In an alternative construction shown in Fig. 3, the switch is adapted to act as a two-way switch, the sparking-plug d being normally connected to the high-tension supply cable through the switch blade n, influenced by the coilspring p<1> so that, on rotating the spindle, thesparking-plug d is cut out and the lamp-igniting, circuit is completed. In this case a metal stripi<1> is provided in connection with the plug so as to form, in conjunction with the heel q of the switch blade, a safety gap to prevent excessive electrical strain being placed on the system during operation of the switch. The connections may bearranged so that, on operating the switch, the spark-gaps at the lamps are connected in series with the sparking-plug. Reference has been directed by the Comptroller to Specification 172,050.
Patent GB-566730-A (GB)
Title: Improvements in or relating to shaft drives for motorcycles
IPC: B62M7/00
Filed: 1942-12-05
Abstract: 566,730. Motor - cycles ; driving- gearing. INDIAN MOTORCYCLE CO. Dec. 5, 1942, No. 17331. Convention date, Aug. 18, 1941. [Classes 79 (ii) and 79 (iii)] In a motor cycle the engine crankshaft is longitudinal of the cycle and is below the level of the rear wheel axle which it drives through a clutch arranged in line with and at the rear end of the engine shaft and a change-speed gear at the side of the clutch, the change-speed gear driving the rear wheel through a universally-jointed shaft. In the construction shown, the rear end of the crankshaft is connected by a friction clutch to a coaxial shaft 16 which drives a quill shaft 28 of the changespeed gear through a chain 25. The driving shaft 28 is mounted on the driven shaft 17 of the change-speed gear. and the latter shaft drives the rear wheel through a universal joint 37 and a shaft 38. The shafts 17, 28 are to one side and above the engine and clutch shafts. The change-speed gear is constructed as shown, and is so arranged that it lies wholly behind the plane of the engine fly-wheel 19, so that the gear shaft 4 and the lay shaft 32 can be set relatively close to the engine shaft. The basic gear ratio between the engine and the shaft 38 can be readily altered by changing the chain sprockets 23, 27. The engine may be of the V-type.
Patent GB-621462-A (GB)
Title: Breech mechanism for air guns
IPC: F41B11/50
Filed: 1947-02-13
Abstract: 621,462. Air guns. LAWRENCE, A., and LASZLO, S. E. Feb. 13, 1947, No. 17380/48. Convention date, Feb. 28, 1946. Divided out of 621,417. [Class 119] An air gun has a pneumatic cylinder 22 fitted at its rear end with a breech-piece 38, a cap 40 rotatable on the breech-piece, and a breech-block 45 pivoted on one of the breech parts 38, 40, means being provided for moving the breech-block about its pivot when the cap is rotated, whereby a hole in the breech-block can be brought into or out of register with an opening in the breech-piece In the form illustrated, the breech-block is pivoted at 43 to the breech-piece and bears against a packing annulus 46 on the breech-piece. Rotational movements of the cap are transmitted to the breech-block by a coil of a spring 52 attached at one end to the breech-block and bearing frictionally against the inside of the cap. The device is described in combination with the air gun forming the subject of Specification 621,417.
Patent GB-530027-A (GB)
Title: A device for securing chiming clocks with pendulum movement during transportation
IPC: G04B41/00
Filed: 1939-06-14
Abstract: 530,027. Clocks. JUNGHANS AKT.-GES., GEB. June 14, 1939, No. 17424. Convention date, June 16, 1938. [Class 139] In a clock, means for gripping the pendulum during transportation and automatically releasing it upon re-installation are interlocked, when in the securing position, with means for securing the gong rods. When the clock is lifted, a spring 16 imparts a limited downward movement to a rod 8, thus causing a lever 7 to swing downwards about its pivot 7a and lock the pendulum 3 between its hooked end 7d and a fixed notch 10b. The reverse action takes place when the rod 8 is pushed upwards by placing the clock on a flat surface. To secure the gong rods 5, a lever 13 attached to a rake-like clamp 12 is manually rotated in a clockwise direction from the release position, determined by a stop 10d until the hooked end 13b engages a rivet 15 on the lever 7 and interlocks both securing units.
Patent GB-306349-A (GB)
Title: Apparatus for moulding plastic substances
IPC: A21C7/01
Filed: 1928-06-16
Abstract: 306,349. Cowell, H. A. June 16, 1928. Rolling-machines.-In the type of machine in which dough is carried on a belt through a tube, the helt is grooved or roughened across the whole or one half of its width, the interior of the tube above the belt is roughened also, while the entrance end of the tube is provided with obstructions D formed by cutting the material and bending the cut portions inwards. The upper part of the tube F at the exit end projects beyond the lower part to facilitate delivery. The tube is horizontally divided into two parts J, Fig. 4, each part being formed to rest directly on the base as shown.
Patent GB-311964-A (GB)
Title: Improvements in drawing heads for spinning machinery
IPC: D01H5/72
Filed: 1928-06-16
Abstract: 311,964. Nigrin, R., and Vereenigde Textiel Maatschappijen Mautner Naamlooze Vennootschap. June 16, 1928. Rollers and roller heads; roving &c. guides.- In a drawing-head comprising five pairs of rollers forming two successive sets, the delivery rollers 3. 8 of the first set being the feed rollers of the second set, a roving-guide or condenser 11 is arranged on the roller 7 preceding the delivery rollers 1, 6 of the second set. The condenser 11 is a slotted hooked shape piece of metal resting loosely on the roller 7 and following the displacement of the roving. The top rollers 6, 8 are weighted by a common saddle piece 13.
Patent GB-355850-A (GB)
Title: Improvements in or relating to screening and mixing machines or appliances
IPC: B28C5/08
Filed: 1930-06-06
Abstract: 355,850. Tar macadam plant. PARKER, Ltd., F. and PARKER, F. W., Viaduct Works, Catherine Street Extension, Leicester. June 6, 1930, No. 17561. [Class 107.] A self-contained and preferably portable unit for screening and mixing road-making and building or other materials comprises a frame on which are mounted a mixing machine, a driven screen, and driving means common to both. The unit described comprises a chassis 1, mounted on wheels 25, 26, the forward of which are carried by a swivelling frame 28. The screen 2 is of the rotary cylindrical type and is carried in an inclined position by an axle mounted in bearings at the rear end of the chassis. A bevel gear wheel 23 in mesh with a bevel wheel 22 on the shaft 20 provides the drive. The mixer 5 is of the open-ended tilting drum type and is carried by a spindle on a yoke pivoted between uprights 1a, a handle 24 and catches 24a, 24b being provided for tilting and holding it in the loading and discharging positions. A petrol or electric motor is housed in a casing 30 at the rear end of the chassis and drives the mixer by chain and bevel gearing. The actuating shaft 20 of the screen is driven from the mixer shaft by chain gearing. The apparatus may be modified by substituting a vibrating screen, or a mixer of the drum type rotating on a horizontal or inclined axis, and means may be provided for enabling the screen to be swung alongside or vertically when not in use. A loading device for the mixer may be provided.
Patent GB-530638-A (GB)
Title: Improvements in extrusion processes and apparatus
IPC: B21C23/21
Filed: 1939-06-16
Abstract: 530,638. Squirting. KLOCKE, W. June 16, 1939, No. 17644. [Class 83 (iv) ] An extrusion apparatus comprises a die 35 supported by a hollow post 42 and surrounded by a sleeve 40 which in its upper position, Fig. 2, forms the container for the billet B and which is movable by the ram 12 of the press so that at the end of the extrusion operation it is in such a position relatively to the die as to expose the residue or fin F remaining in the die, Fig. 1. The sleeve is moved to its upper position by a piston 53 working in a cylinder 52. The ram 12 is operated by connecting rods 18 from a crank 16 driven by gearing from a pulley 24. The shaft 22 of the crank is located to one side of the vertical centre line C of the press so that the pull exerted by the rods 18 during the extrusion approximates to a straight pull along the centre line. This reduces the distortion of the frame of the press. During extrusion escape of metal between the die and sleeve is prevented by a seal of solidified metal which is cooled by fluid flowing through bores 86, 87 in the post 42 and an annular groove 84 around the die. At the end of an extrusion operation the residue F may be removed by means of a cutter 106 which is moved transversely into position over the die by a piston 114 operating in a cylinder 112. The cutting stroke of the tool is effected by a piston 104 in a cylinder 102, the upward movement of the cylinder along its supporting slide 125 being limited by the ram 12. If desired the press may be arranged horizontally instead of vertically.
Patent GB-348912-A (GB)
Title: Improvements in or relating to globe holders
IPC: F21V17/06
Filed: 1930-06-07
Abstract: 348,912. Lamp shade &c. holders. McKELLAR, A. S. H., 27, Cathcart Street, Greenock, Renfrewshire, and HEGGIE, A., 50, Wellington Street, Glasgow. June 7, 1930, No. 17718. [Class 75 (ii).] Means for attaching a shade or a globe to an electric lamp holder comprises a resilient carrier ring 1 of generally elliptical formation having on opposite sides of the major axis upper in-turned teeth 4 for engagement with the screw threads on the holder 5 and lower outturned flanges 2 for engagement with the upper edge of the shade 3, and at opposite ends of the major axis up-turned lugs 6 which may be pressed inwardly to release the teeth 4 from the holder 5. The flanges 2 are bent back upon themselves as shown in Fig. 3. Specification 305,348, [Class 75 (ii), Lamp chimneys &c.], is referred to.
Patent GB-683517-A (GB)
Title: Improved electro-magnetic detector
IPC: G01V3/06
Filed: 1951-07-26
Abstract: 683,517. Locating conductive bodies. PITMAN, D. H. July 26, 1951 [July 31, 1950], No. 17781/51. Class 37. An electromagnetic detector for locating a pipe or cable underground or otherwise hidden between two known and accessible parts consists of a search coil, a step-up transformer with depth selector switch, an amplifier and output meter, together with a low frequency generator and leads to connect to two parts of the pipe or cable to be located. The search coil 4, Fig. 1, is coupled to a step-up transformer 5, the circuit being tuned to the frequency of the generator circuit 6, Fig. 2. The output of the transformer is fed through a depth selector switch 8 incorporating two or more resistors so that various field strengths may be selected and which is calibrated in feet. The secondary winding is tuned by a condenser 9 to the frequency of the generator. The switch 8 is connected through a two-valve amplifier 7 and a metal rectifier 12 to an ammeter 13. In use the low-frequency generator 6, Fig. 2, is connected to the pipe or cable 15, Fig. 3, at points 16, 17 between which it is to be located. The generator current is then adjusted by means of a thermo-couple ammeter 18, Fig. 2, to a predetermined value so that the same field strength is produced each time the detector is used. The low frequency magnetic field of the pipe or cable 15 is located by the search coil 4, the E.M.F. induced therein being stepped up by the transformer 5 and amplifier 7 and read on the ammeter 13, which is calibrated in feet depth.