baber/WOPTO huggingface dataset:
Patent GB-539313-A (GB)
Title: Improvements in and relating to electric heating elements
IPC: H05B3/16
Filed: 1940-04-04
Abstract: 539,313. Electric resistance heaters. GENERAL ELECTRIC CO., Ltd., and RYROFT, J. L. April 4, 1940. No. 6101. [Class 39 (iii)] Electric resistances used for heating air are supported by relatively thin wire supports whereby over-heating at these points due to shielding from the air current, is avoided. The heating element comprises two metal rods 1, 2 carrying a number of short ceramic sections 3, each with wires 5 cemented into holes 4, and projecting radially. These wires may be arranged about 90 degrees apart. The free ends of the wires are looped to support the coiled resistance wire 7. Terminal connections may be provided at the same or at opposite ends of the heater. The resistance wire is pre-formed as a close coil and extended to engage the loops 6. Specification 160,162, [Class 39 (iii)], is referred to.
Patent GB-557364-A (GB)
Title: A process for the manufacture of resinous condensation products
IPC: C08G12/42
Filed: 1942-05-08
Abstract: 557,364. Resinous condensation products. BECK, KOLLER & CO. (ENGLAND), Ltd. May 8, 1942, No. 6236. Convention date, Aug. 16, 1941. [Class 2 (iii)] Hydrocarbon - soluble etherified ureaformaldehyde resinous condensation products are made by heating urea (1 mol.) with aqueous formaldehyde (2.0-2.3 mols.) at pH 8-9 in the presence of an alkaline catalyst, distilling under vacuum (30-100 mm. Hg) until 65-100 per cent. of the water originally contained in the formaldehyde solution is removed, heating the resulting mass with an excess of a monohydric alcohol in the presence of an acidic catalyst (pH 5.5-6.0), and distilling under vacuum (30 mm. Hg or more) until the resulting mass will tolerate 10-55 c.c. of straight-chain hydrocarbons for 10 gms. resin. Suitable alkaline catalysts are sodium, potassium and ammonium hydroxides, diethylamine and quaternary ammonium compounds. The acidic catalyst may be phosphoric, hydrochloric, sulphuric, formic, maleic or phthalic acid, acid esters or acid salts. Examples of monohydric alcohols are ethanol, n-propyl, n-butyl, 1-pentanol and n-octyl. In a typical example a stirred mixture of aqueous formaldehyde (10 gm.-mols.), urea (4.37 gm.-mols.) and aqueous ammonia (pH 8.5), was heated to 60‹ C. in 30 minutes and maintained at that temperature for an hour. 99 per cent. of the water in the aqueous formaldehyde was removed by distillation (75 mm. Hg.) at 60-60‹ C. The viscous mass was heated to 90‹ C. and n-butyl alcohol (10.8 gm.-mols.) and phosphoric acid added (pH 5.5). After refluxing for 15 minutes the reaction mixture was distilled at 60‹ C. (75 mm. Hg.) until the product had a mineral spirits tolerance of 22 c.c. for 10 gms. resin. It was dissolved in xylol. The solution was compatible with the usual thinners, resins and pigments. Enamels, e.g. toluidine red enamels may be prepared from the products. Specifications 522,643, 528,479 and 535,378 and U.S.A. Specification 2,201,926 are referred to.
Patent GB-1248508-A (GB)
Title: Improvements in combined gear-selection and starter switch control devices
IPC: H01M4/04
Filed: 1969-02-05
Abstract: 1,248,508. Change-speed control. REGIE NATIONALE DES USINES RENAULT, and AUTOMOBILES PEUGEOT. 5 Feb., 1969 [9 Feb., 1968], No. 6319/69. Heading F2D. A combined gear-selection and starter switch for a motor-vehicle automatic change-speed gear comprises a turn-and-slide control rod 1 connected to a gear selection lever 3 and having a ratio range selection grid 17 secured thereon, the selection grid 17 being formed as a cylindrical sector the end faces 18, 19 of which are profiled to varying depths corresponding to the various gear lever positions for ratio range selection (i.e. P, R, N, A, Z, I) and being freely located between two spaced pins on a fixed bracket 11 which supports the control rod 1 and carries a spring released engine starter switch 12, the depths of the profiled recess in the parking (P) and neutral (N) positions permitting addi tional axial movement of the rod 1 to close the starter switch 12, via thrust pads 25 or 26 on the selector grid 17, for engine starting only in these two positions. A spring 6 downwardly biases the rod 1 and grid 17 against the pin 21 in selector positions other than P and N, and directly, via the thrust pads 25 or 26, against the starter switch rod 13 in the P and N positions, the pin 21 being freely located in the extended profile recesses 23 or 24 (Fig. 2) of the grid 17 which is held against further downward movement by a stronger opposing spring 14 of the starter switch 12, the switch being manually closed for engine starting via the lever 3 which reacts at 5 on a fixed support 4. A reverse light switch (30) may be operated in position R by a boss (31) on the grid 17 or by a boss on a lever (29) on the rod 1 (Fig. 5, not clear).
Patent GB-821361-A (GB)
Title: Improvements in or relating to machines for topping and tailing onions, shallots, and other vegetables
Inventor: BAKER FRED ROBINSON
IPC: A23N15/08
Filed: 1957-02-26
Abstract: 821,361. Onions &c., topping and tailing. BRIERLEY, COLLIER & HARTLEY Ltd., W. March 19, 1958 [Feb. 26, 1957], No. 6351/57. Addition to 744,306. Class 28 (2). In topping and tailing onions moved horizontally by conveyer cradles 35 so that the tops and tails are gripped between sideways moving guides and pass to scissors, as in the parent Specification, the height of the conveyer is adjusted locally in accordance with the diameter of the onion, so that the tops and tails meet their scissors at the correct height. A larger onion presses up the feeler shoe 9 of a bellcrank 6 whereby side arms 17 lower the end 26 of a lever 18 so that the slipper plate 30 of the conveyer is lowered so that the particular cradle 35 drops a little to lower the tops and tails into accurate position in the gripper plates 38 to be cut off by the scissors. The side arms 17 are spring-loaded.
Patent GB-1039777-A (GB)
Title: Cylinder head for air-cooled internal combustion engines
Inventor: FRITSCHE EBERHARD
IPC: F02F1/24
Filed: 1964-02-17
Abstract: 1,039,777. Air cooled cylinder heads. MOTORENWERKE CUNEWALDE VEB. Feb. 17, 1964, No. 6471/64. Heading FIB. An air-cooled cylinder head has a central cooling air channel divided by a portion 26, Fig. 1, into upper and lower channels 5, 6, the upper channel 6 leading cold air directly on to the upper wall 23, Fig. 2, of the exhaust channel 19. The lower channel 5 is formed between the side walls 16, 17, of the exhaust and inlet channels 19, 18, and cooling fins 27 are formed therein, fins 28, 30 also being provided in the portion of channel 6 over the exhaust channel 19. The flow of cooling air through the portion of channel 6 over the inlet channel 18 is prevented by a rib 32. A fuel injector valve, sparking plug, or combustion chamber 1 is situated in the entrance to the channel 5.
Patent GB-1374731-A (GB)
Title: Tape player
IPC: G11B15/68
Filed: 1973-02-09
Abstract: 1374731 Automatic tape-cartridge players PIONEER ELECTRONIC CORP 9 Feb 1973 [9 Feb 1972] 6567/73 Heading G5R A playback assembly moves over an array of tape cartridges, stops and plays back the cartridge at any position at which a manually operable selector has been actuated, and moves on after sensing the end of the tape being played back. As shown, a plate 16 is driven up and down a stack of cartridges 1, each resting on an individual tray 1<SP>1</SP> associated with a latchable push-button 11<SP>1</SP>, by a feed screw 18 rotated by a reversible electric motor 17 controlled by limit switches SW1, SW2. On encountering an operated and latched push-button 11<SP>1</SP>, a spring-loaded pin 22 is pushed in to close a switch SW4, causing a solenoid 26 to open a switch SW3, stopping the motor 17, and advance a sliding plate 23. This releases a pinch-roller 4 in the selected cartridge to engage a rotating capstan shaft 8, unlatches the push-button 11<SP>1</SP>, and inserts into the cartridge a magnetic head 20 and a sensor 21 which later initiates release of the solenoid 26, and consequent resumption of travel by the plate 16 carrying the playback assembly, on engaging a conductive end-of-tape foil.
Patent GB-349520-A (GB)
Title: Brake
IPC: B60T11/32
Filed: 1930-02-27
Abstract: 349,520. Fluid-pressure brakes. ACME BRAKE CORPORATION, 12801, Jefferson Avenue, East, Detroit, Michigan, U.S.A. Feb. 27, 1930, No. 6578. Convention date, April 3, 1929. [Class 103 (i).] A fluid brake apparatus comprising a plurality of brake devices connected with a common pressurecontrolling cylinder, is provided with means incorporated with the master cylinder structure and responsive to failure of the fluid transmitting means to one of the brake devices, for automatically closing this means. The master cylinder 17 connected to the brake pedal opens into a valve chamber 25 connected at either end by conduits 23, 24 to two sets of brakes. A reciprocable valve member 31 carries a valve 33 at each end adapted to engage selectively valve seats 30 formed on plugs 27 at each end of the chamber 25. Fluid can normally flow through a clearance 36 between the valves and the wall of the chamber, through radial bores 34 and longitudinal bores 35 in each end of the valve member. Should leakage occur in either conduit 23, 24 the valve member will be moved by the differential pressure set up and by the flow of fluid towards this conduit to close the leaking conduit. A spring dog 35a engages a groove 36a in the valve member to hold it yieldingly in position and in either seated position. The valve seats may be of rubber.
Patent GB-383502-A (GB)
Title: Improvements relating to thermionic valves or electron discharge tubes
IPC: H01J9/04
Filed: 1932-03-04
Abstract: 383,502. Thermionic valves. NAAM. LOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. March 4, 1932, No. 6590. Convention date, May 26, 1931. Drawings to Specification. [Class 39 (i).] In valves in which the cathode is formed bv applying to a core a suspension of an emissive material or of a compound developing such material and by heating before or during exhaustion of the valve, residual gases are removed by vaporizing magnesium and subsequently calcium, strontium or barium. In forming the cathode, a suspension of barium oxide in water, alcohol or amyl-acetate may be applied and dried in carbon dioxide, or barium carbonate in water or strontium carbonate in alcohol may be used. Magnesium and barium oxide are placed in small receptacles near the pinch and near the top of the valve and magnesium and barium are successively vaporized by high-frequency heating.
Patent GB-248789-A (GB)
Title: Improvements in side-registering devices for sheet-feeding apparatus
IPC: B65H9/10
Filed: 1925-08-10
Abstract: 248,789. Dexter Folder Co., (Assignees of Christophel, C. E.). Aug. 14, 1924, [Convention date]. Drawings to Specification. Sheet-carriers, guides, and registering-devices. -The description in the present Specification is comprised in that of Specification 238,547, and the claims are confined to the side-registering mechanism for the sheets. Specifications 248,785, 248,786, [Class 100 (ii), Printing processes &c.], 248,787, and 248,788 also are referred to.
Patent GB-835242-A (GB)
Title: Improvements in or relating to epicyclic transmission
IPC: F16H15/48
Filed: 1956-03-02
Abstract: 835,242. Change speed gearing; toothed gearing; friction gearing. FICHTEL & SACHS A.G. March 2, 1956 [July 16, 1955], No. 6611/56. Classes 80 (1) and 80 (2). A speed increasing gear comprises an input member 9 driving through rollers 7, balls or the like, a rolling member 3 whose outer surface 5 rolls within an annular member 1, the rolling member being coupled by an eccentric linkage 4 to an output member concentric with the input member. The rollers 7 may contact the outer surface of the member 3 or they may form a roller bearing between an eccentric formed on the driving member and the rolling member. The rolling member may be toothed to engage internal teeth in the annular member. The annular member may be stepped or conical, Figs. 7, 8, to provide a change speed gear by lateral shift of the annular member.
Patent GB-813904-A (GB)
Title: Improvements in electron discharge tubes
Inventor: GENTRY CHARLES HAROLD RAYMOND
IPC: H01J9/20
Filed: 1955-03-07
Abstract: 813,904. Discharge tubes. MULLARD RADIO VALVE CO. Ltd. Feb. 14,1956 [March 7, 1955], No. 6623/55. Class 39(1) In an electron discharge tube having an envelope consisting at least in part of glass, at least the part of the inside glass surface subjected to electron bombardment during normal operation of the tube is roughened by sand blasting the degree of roughening being such as to make the secondary emission ratio less than unity. The roughening reduces the secondary emissivity of the glass to less than unity and consequently prevents the build up of positive charges on the tube wall which could cause reduction in the internal resistance of a pentode and due to 'jumping 'of the potential of the wall, noise in a low frequency amplifying valve. The roughening is effected by sandblasting. The envelope is roughened by introducing a sand-blasting jet giving one or more streams directed radially outwardly into the innermost part of the envelope to be treated and rotating the envelope and moying it axially so as to gradually withdraw the jet. The degree of roughening can be controlled by varying the blast and/or the rate of movement of the envelope. The roughening may be carried out, if desired, immediately after the bulb making and the roughened bulb stored until the valve is to be made.
Patent GB-883403-A (GB)
Title: Four wheel vehicle steering assembly
IPC: B62D7/15
Filed: 1960-02-25
Abstract: 883,403. Steering vehicles. WILLY'S MOTORS Inc. Feb. 25, 1960 [March 6, 1959], No. 6626/60. Class 79(5). In an arrangement for steering a vehicle, the front and rear pairs of wheels may be steered, or the rear wheels may be locked in a non-steerable position and the front wheels only are steered. A link 42 is connected through a shaft 40 to a drop arm 38 of a steering box 36 and is moved backwards and .forwards by rotating a steering wheel 32, the motion being translated to steering movement of the wheels 14 through a three-armed link member 52, one arm 44 of which is connected to the link 42 and another 50 to the steering links 54, 56, 54, and idler arm 58. The third arm 48 of member 52 is connected by a link 70 to a crank 72 attached to a hub 74 mounted in bearings 82, Fig. 5, and coaxial with a shaft 86. The hub 74 and shaft 86 have splines 92 and 94 on their outer surfaces and a sliding member 96 has complementary inner splines 98, and also on its outer surface a set of splines 100 which may be brought to mesh with complementary splines 102 formed in a bracket member 80 in which the bearings 82 are mounted and which is attached to a tubular longitudinal frame member 20 of the vehicle. In the forward position of the sliding member 96, its inner splines 98 engage the splines 92 and 94 and its outer splines 100 are free, whereby the steering movement of wheel 32 is translated to rotary movement of shaft 86 and from a crank 108 at its rearward end the rear wheels 16 are steered through the links 60, 62, 60, an idler arm 64 and arm 66 integral with an arm 112 and connected to crank 108 through link 110. In its rearward position, the outer splines 100 of the sliding member 96 engage the splines 102, its inner splines engage those 94 of the shaft 86 locking the shaft against rotation, and the splines 92 are free, allowing unimpeded steering movement of the front wheels. The reciprocating movement of the member 96 is provided by a rod 104 sliding within the hub 74 and provided with a pin 106 which extends through slots in the member 86 and engages the member 96, the rod 104 being connected by links to a bell crank 126, and then through rod 134, bell crank 136, and link 138 to a lever 142.
Patent GB-824400-A (GB)
Title: Ultrasonic drill
IPC: B24B1/04
Filed: 1957-02-27
Abstract: 824,400. Percussive tools. TECHNICAL CERAMICS Ltd. Feb. 27, 1957 [Feb. 27, 1956], No. 6641/57. Class 124. An ultrasonic drill comprises a transducer having a horn attached thereto which horn carries a plurality of cutting tools. The transducer may by of any piezoelectric material or may be a magnetic strictive device. As shown, a transducer 10 may be attached to a horn 11 carrying a tool base 12 in which are mounted a number of tools 14 which may be maintained in position by set screws. The tools may be of any desired shape to cut circular or non-circular holes and the device may be mounted in a machine arranged to stop when the desired depth of hole has been cut.
Patent GB-1484389-A (GB)
Title: Spheroidal graphite cast iron pipe of ferritic structure and method of producing the same
IPC: B22D13/10
Filed: 1975-02-17
Abstract: 1484389 Controlled cooling of S G cast iron pipes KUBOTA Ltd 17 Feb 1975 [23 Feb 1974] 6670/75 Headings C7A and C7N [Also in Division B3] A method of producing a ferritic structure in a spheroidal graphite cast iron pipe is to remove the pipe from the mould at 850-900‹C after casting in a non-chilled i.e. cementite free condition, and cooling slowly at a controlled rate of 2-10‹C/mn over the range 800-706‹C. Cooling may take place in a tunnel or pit  furnace which has been pre-heated to 300-500‹C. An alternative embodiment used when centrifugally casting pipes, is to seal or otherwise insulate the inner surface of the cast pipe and use the insulated centrifugal mould as the controlled rate heat-dissipation furnace. Examples are given of S.G. cast iron alloys containing up to 2À85% Si, 3À4-3À8%C, 0À3-0À6% mn 0À04-0À7%P, 0À006-0À012%S, 0À032-0À046%Mg with the balance Fe.
Patent GB-753376-A (GB)
Title: Improvements relating to high-voltage circuit-breakers
Inventor: AMER DONALD FOSTER
IPC: H01H33/55
Filed: 1954-03-08
Abstract: 753,376. Oil-breakswitches. REYROLLE & CO., Ltd. A. March 3, 1955 [March 8, 1954], No. 6743/54. Drawings to Specification. Class 38(5) A high-voltage, small-oil-volume, circuitbreaker has a conduit outside the circuitbreaker tank to provide communication between the upper and lower regions of the tank to permit circulation of the oil by thermosyphon action. In a double-break circuit-breaker which is constituted by two single-break units, the upper regions and the lower regions of the two tanks are interconnected by conduits, the tank of each unit acting as part of the external circulation path of the other unit. A heater may be mounted in the lower part of one of the tank or each of the tanks. In the latter case, by energizing the heaters alternatively the direction of circulation may be reversed.
Patent GB-434439-A (GB)
Title: Combined circular chaser and turning tool
IPC: B23G5/10
Filed: 1934-03-02
Abstract: 434,439. Screwing-die and hollowcutter heads. FAIRWEATHER, H. G. C., 65, Chancery Lane, London.-(National Acme Co.; 131st Street, Cleveland, Ohio, U.S.A.) March 2, 1934, No. 6780. [Class 83 (iii)] A die has radially adjustable chasercarrying blocks and circular chasers having a sector removed to provide cutting portions effective to perform different kinds of work around the exterior of a stock bar. The chasers, which are adjustable by known cam means in the body 2, have straight parallel grooves 23 formed around their peripheries and these grooves terminate in a depthwise cutting edge. Each chaser has a forwardly extending hollow plain portion 27, which is formed to give a cutting edge 25 and a shaving edge 26, thus enabling work to be turned, finished and threaded by the same set of chasers, in some instances where a turning operation only is required, the threading grooves on the chasers may be omitted. The circular chasers may be used for tapered threads. Specification 412,468 is referred to.
Patent GB-198452-A (GB)
Title: Improvements relating to tool chucks
IPC: B23B31/12
Filed: 1922-03-08
Abstract: 198,452. McLean, W. L. March 8, 1922. Hand and breast drills; chucks.-The jaws of a tool chuck have gripping surfaces adapted to engage parallel tool shanks and other gripping surfaces adapted to engage tapered shanks, and are so mounted as to enable their gripping surfaces to adjust themselves into substantial parallelism with the surfaces of shanks of different section or taper. As shown, the chuck comprises two jaws 3 connected at their inner ends by a coiled wire spring 8, the ends 7 of which engage in holes in the jaws. The jaws have flat serrated surfaces 50, Fig. 8, to grip parallel shanks and tapered grooves 14 to grip taper shanks. As the jaws are operated by screwing up the sleeve 6, they pivot about their points of contact with the shank so that their gripping surfaces lie flat against the shank, this movement being permitted by the provision of rounded shoulders 27 on the jaw-retaining member 4 on which the sleeve 6 is threaded. The member 4 is provided with exterior grooves 31 to receive a pin wrench when a greater turning force than can be applied by the handle 42 is required. The member 4 carries a spiral shank 22 engaging a square hole 43 in the bottom of a tubular casing 41 fixed to the handle 42 so that the screw-driving bit, drill or other tool is turned by merely depressing the handle 42. A spring returns the handle to its upper position, and a loose collar 44 on the handle facilitates the grip by the operator during this return movement.
Patent GB-557534-A (GB)
Title: Improvements in or relating to photographic printing apparatus
IPC: G03B27/54
Filed: 1942-05-20
Abstract: 557,534. Photographic printing apparatus. KODAK, Ltd. May 20, 1942, No. 6881. Convention date, June 25, 1941. [Classes 98 (i) and 9s (ii)] A photographic printing-apparatus includes a light-source extending the full width of the negative to be printed, part of the source being of higher intensity than the remainder, together with means between the negative and the high-intensity portion of the light source to obstruct some of the rays from this portion so as to provide uniform light intensity over the negative. The Figures show sections of a lamphouse of a vertical enlarger, the illumination being provided by two tubular fluorescent lamps 51 extending the full width of the negative 29. The lamps are mounted in spring sockets 49 carried by brackets 46 secured to lugs on the side walls 41 of a reflector 40. To render the illumination of the negative uniform a number of rods 55 having their ends secured to the reflector walls 41 extend between the central high light-intensity sections of the lamps and the negative. The rods may be somewhat translucent, but are preferably opaque, and may be painted white to reflect some of the light back to the reflector 40. A light-diffusing screen 61 is provided. In a modification, the bars are of rectangular section and formed by slotting a strip of material. The lamps in either case may be of flattened or elliptical section.