baber/WOPTO huggingface dataset:
Patent GB-654918-A (GB)
Title: Improvements in or relating to electrical devices for measuring temperature
IPC: G01K7/34
Filed: 1948-11-20
Abstract: 654,918. Electric indicating systems. GENERAL ELECTRIC CO., Ltd., and FRIEDLANDER, E. S. Nov. 30, 1948, No. 31053. [Class 40 (i)] In a device for measuring the temperature of a current-carrying inductive winding (e.g., that of a dynamo-electric machine) by its resistance variations, the field 10 of a turboalternator rotor is energized by a D.C. exciter 11, through slip-rings 14, 15. The operating coils 21, 22 of a differential relay 20 deflect a pivotal armature 23 from balance to complete either contacts 24, 25 or 24, 26, in response to changes in the ratio of the currents in coils 21, 22, which are connected respectively in series with the excitation current and in series with variable resistances 31, 32 across the excitation voltage. A D.C. motor 43 varies the resistance 32 through a lead screw, and is controlled by the relay contacts so that when any change in field temperature varies the excitation current, the relay is unbalanced and starts the motor to adjust resistance 32 and the current in the coil 22 until balance is restored. The slider of resistance 32 has a pointer 35 which indicates the prevailing field temperature on a scale 36. Calibration is adjustable by resistances 30, 31, and the variation of resistance 32 by the motor is slow, to avoid errors due to transient field voltage or current changes. The relay may be of the kind described in Specification 623,908, [Group XXXVII]. An alarm may be operated at temperatures above a preset value, and the motor may be replaced by the moving system of a D.C. amperehour meter, or an electromagnetic stepping switch.
Patent GB-1403105-A (GB)
Title: Hydraulic modulator valve
IPC: F16D48/04
Filed: 1972-07-03
Abstract: 1403105 Fluid regulation AISIN SEIKI K K 3 July 1972 [8 July 1971 10 July 1971 9 Sept 1971] 31118/72 Heading G3H [Also in Division F2] An hydraulic modulator throttle valve 40 for controlling an hydraulic mechanism, e.g. a clutch, comprises a casing with a bore 41a therein containing an axially adjustable stepped spool 42 having a large diameter portion 42a hermetically engaged with the bore, a small diameter portion 42b and an intermediate diameter portion 42c in sequence. The small and intermediate diameter portions define with the bore a throttle passage between inlet and outlet ports 41b, 41c, and fluid-pressure downstream of the passage acts in chamber 41f to move the spool in a direction in which the intermediate portion 42c moves towards the inlet port 41b. Such movement produces, after an initial increase, a gradual decrease in the throttling effect of the passage due to the reducing effective length of the passage. An accumulator having a spring- biased piston 44 may be omitted, Fig. 3 (not shown).
Patent GB-333104-A (GB)
Title: Improvements in the manufacture of diaphragms for gramophones and for like purposes
IPC: B21D22/12
Filed: 1929-10-14
Abstract: 333,104. Parker, T. H. Oct. 14, 1929. Sound - reproducing diaphragms.-Gramophone diaphragms are stamped from metal discs in a press in which a die 4 and an electrical heating element 2 are secured to the fixed part of the press. The press head 6 has a hollow rigid backing and is faced with a rubber or other resilient sheet 7. In use, the disc is positioned on the die by a bearing-ring 5 and is heated. The press head is lowered to effect the stamping. After the head is lowered additional pressure may be applied by fluid under pressure from an inlet 9 entering between the rubber sheet 7 and the backing by an orifice 10.
Patent GB-154186-A (GB)
Title: Improvements in locking means for lifting-jacks
IPC: B66F3/30
Filed: 1920-11-04
Abstract: 154,186. Michel, A. Nov. 19, 1919, [Convention date]. No Patent granted (Sealing fee not paid). Jacks.-The lifting-pillar 2 of a pneumatic jack is sustained by the engagement of a tapered ring 6 with one of the grooves 5. When the thinner side of the ring is raised by a lever so that the inner surface of the ring is vertical, the pillar can be lowered.
Patent GB-688033-A (GB)
Title: Process for the manufacture of maleic acid
Filed: 1949-12-09
Abstract: Maleic acid and/or maleic anhydride is prepared by oxidizing an unsaturated aliphatic hydrocarbon containing 4-8 carbon atoms in the vapour phase by a gas containing molecular oxygen in the presence of a catalyst comprising the oxides of phosphorus and molybdenum and being free from vanadium and its compounds.  The reaction is preferably carried out in the temperature range 250-400 DEG  C. with a gas mixture containing excess oxygen. Particularly suitable starting materials are unsaturated hydrocarbons of 4 carbon atoms, for example butenes, butadiene and butene fractions containing a mixture of 1-butene and 2-butene obtained by the cracking of petroleum oils.  By-products such as acetic acid and crotonaldehyde may be formed during the reaction. The catalyst consisting of molybdenum and phosphorus oxides may be supported on a carrier, for example, silica gel or alumina.  The catalyst may be prepared by adding phosphoric acid to the solution or suspension of molybdic acid with which the catalyst carrier is impregnated.  In the examples: (a) a mixture of 1-butene and 2-butene; (b) n-butene; and (c) butadiene are oxidized according to the process of the invention to give maleic acid.ALSO:Catalysts for use in the production of maleic acid from unsaturated aliphatic hydrocarbons containing 4-8 carbon atoms comprise the oxides of phosphorus and molybdenum and are free from vanadium and its compounds.  The catalysts may be supported on a carrier such as silica gel, alumina and the like.  They may be prepared by adding phosphoric acid to a solution or suspension of molybdic acid with which the carrier is impregnated.  Chemical compounds such as phosphomolybdic acid or ammonium phosphomolybdate may also be used.  The preferred catalyst is prepared by contacting hydrated silica gel with an aqueous solution containing phosphate and molybdate ions, drying the resulting mixture and grinding or pelleting.
Patent GB-1080715-A (GB)
Title: Improvements in washing and cleaning machines
IPC: B08B9/08
Filed: 1965-07-23
Abstract: 1,080,715. Washing barrels. F. THOMAS. July 23, 1965, No. 31633/65. Heading B8T. A barrel cleaning machine includes a barrel loading device, a number of treatment stations, a device for transferring barrels from one station to the next, and a barrel alignment device at respective stations, the loading, transfer and alignment devices being driven hydraulically. Barrels (11), Fig. 2 (not shown), are loaded singly on to a machine receiving station (34) by a pair of pivoted arms (35) actuated by an hydraulic cylinder (31). When the arms are raised, guide rollers (36) on the arms ride over rails (43) and then raise ratchets (39), and on lowering, the ratchets are restrained and the rollers guided on rails (41) and the arms withdrawn into a housing (42). The barrel is then passed to a cleaning station comprising idler rollers 45 and rollers 47 driven by an hydraulic motor 46; at this station the barrel exterior is subjected to liquid jets or a combination of jets and brushes. At the next station the bung hole is located and directed downwards and the barrel is subjected to a similar cleaning treatment. At subsequent stations the barrel may be subjected to internal cleaning by upwardly directed spray nozzles. At the first two stations each barrel is laterally aligned by guide rollers 51 on arms 50 which are brought into engagement with the opposed ends of the barrel. The arms are pivoted in bearings 52 and operated by hydraulic cylinders 48; the arms also carry water feed pipes (56), Figs. 3 and 4, not shown, supporting sprayjets (58, 60). A further pair of jets (59) is provided. The barrels are transferred from one station to the next by a conveyer 1 having barrel receiving positions 10, and which is raised by pneumatic cylinders 3, 3<SP>1</SP> to lift the barrels from their respective stations and then moved forwards by an hydraulic cylinder 13 to bring the barrels to the next station 5. The conveyer is then lowered and returned to its starting position. Conveyer control is effected by a cam 16 thereon which operates switches 15 in an hydraulic control circuit. In a modification, Fig. 5, not shown, at the first station is arranged external cleaning means and a bung hole detector. The cleaning is effected by brushes (61), (62), the latter being pivoted at (63) and swung down into engagement with the barrel by a pneumatic cylinder (64). At subsequent stations, upwardly directed nozzles (21) rotated by an hydraulic motor clean the barrel interiors. Spray liquid discharged from the barrels is received in a tank (28) and recycled.
Patent GB-315343-A (GB)
IPC: B05B7/20
Filed: 1928-10-31
Abstract: 315,343. Schoop, M. U. July 12, 1928, [Convention date]. Drawings to Specification. Cementation. - In order to make parts of a metal spraying apparatus heat resisting at the temperature used, the said parts are cleaned, coated with aluminium, and then embedded in a mixture of pulverized charcoal and bauxite and heated to approximately 800‹ C. for about 4 hours air being excluded.
Patent GB-827620-A (GB)
Title: Improvements in polymerization of olefins
IPC: C08F2/00
Filed: 1956-10-18
Abstract: Olefins are polymerized in the presence of an hydrocarbon diluent and a catalyst comprising chromium oxide associated with at least one oxide selected from silica, alumina, zirconia and thoria, at least a portion of the chromium being in the hexavalent state, by maintaining an olefin-containing gaseous phase in contact with the olefin-diluent mixture, and introducing monomeric olefin at a rate at least as great as that at which monomeric olefins are polymerized.  The olefin-diluent mixture is preferably stirred and the temperature of the process kept within the range 150-450 DEG  F.  Specified olefins are butadiene, isoprene, butadiene-1-olefin mixtures, ethylene, propylene and ethylene-propylene mixtures.  It is preferred that the process is carried out continuously although batch operation can be used. Apparatus for carrying out the process is described. Specifications 790,195 and 804,641 are referred to.
Patent GB-1513959-A (GB)
Title: Swing training apparatus
IPC: A63B69/36
Filed: 1975-07-29
Abstract: 1513959 Swing practice apparatus J OPPENHEIMER 29 July 1975 31726/75 Heading A6D Apparatus for use in practising swings (such as golf swings) comprises a flexible cord 20 (Fig. 1) fixed at a first end 22 and connected at its second end to an instrument (such as a golf club) to be swung and a movable guide 28 for the cord through which the cord may slide, at least part of the guide being constrained (e.g. by a guide member 32 (Fig. 1)) to move along a predetermined path when the instrument is swung so that the length of cord between its second end and the guide varies through the swing. The guide may comprise a hollow member 44 (Fig. 2) adjustably mounted on a frame having lockable pivots 62, 72. Alternatively the guide may comprise a slider 104 (Fig. 4) guided by a guide member 106, or a slider 144 (Fig. 7) guided by a guide member 142 on a support plate 140.
Patent GB-959900-A (GB)
Title: Apparatus for use in making preliminary tests in connection with aircraft rocket propelled or assisted ejection seats
IPC: G01M7/08
Filed: 1961-09-04
Abstract: 959,900. Dynamometers. J. MARTIN. March 30, 1962 [Sept. 4, 1961], No. 31738/61. Heading G1W. The invention relates to aircraft rocket propelled ejection seats and particularly to an apparatus for determining airmen weight moment values (i.e. the moment of any given airman about an arbitary transverse axis) comprising a base structure 1 (Figs. 1, 2) and a test seat 10 mounted thereon rockable about a transverse axis (shaft 9) displaced from the vertical plane containing the centre of gravity of the seat when occupied by an airman, and means for measuring the pitching moment of the seat about such axis in units that may be so applied to the calibration of the rocket motor thrust-line-position adjusting means of an aircraft ejection seat so as to enable the pitching moment value measured for a given airman to be employed for correct setting of rocket motor thrust line position in such an aircraft ejection seat for use by that airman. The pitching moment measured is related to the airman weight moment. The measuring means may comprise a cylinder 21 fixed to the base structure and having a piston 22 projecting upwardly therefrom, the piston having a central stud 24 for engagement by a pressure finger 23 rigidly secured to the underside of seat 10. When seat moves forward the finger 23 depresses the piston 22 and this causes displacement of hydraulic fluid from the cylinder through tube 25 to a fluid pressure sensitive indicating device 27 calibrated in terms of airman weight moments. Alternatively the seat may carry a balance beam along which a balance weight may be moved to achieve equilibrium. Further alternative measuring means may be electrical in character and may comprise e.g. a strain gauge or carbon pile and associated circuitry and indicators or a potentiometer producing electrical signals in dependence on the movement of the seat. Specifications 920,545, 959,897 and 959,899 are referred to.
Patent GB-871467-A (GB)
Title: Improvements in or relating to cartons
Inventor: EARL HAROLD WILLIAM
IPC: B65D5/496
Filed: 1958-10-07
Abstract: 871,467. Cartons. LYONS & CO. Ltd., J. Sept. 23, 1959 [Oct. 7, 1958], No. 31951/58. Class 18. A carton formed from the one-piece blank shown in Fig. 1 comprises main side panels 1-5 and partition forming panels 6-9. Portions 7a, 8a, 10 and 11 space the partitions apart and portions 14-19 are closure panels which have notches formed between tabs 20 to interlock with tabs 21 on the partitions The carton, shown partly erected in Fig. 2, is formed by first bending portions 9, 10, 8, and 8a at 90 degrees to their adjacent members and securing portion 8a to portion 10 by adhesive. Secondly, portions 5, 6, 11, 7, and 7a are bent at 90 degrees to their adjacent members and portion 7a secured to portion 5. Finally, panel 4 is bent normal to panel 3 bringing partitions 6, 9 to lie back-to-back at the centre of the carton and folding the closure panels inwardly to lock with the tabs 21.
Patent GB-160017-A (GB)
Title: Improvements in and relating to protective devices for electric circuits
IPC: H01T1/16
Filed: 1919-12-22
Abstract: 160,017. British Thomson - Houston Co., Ltd., (General Electric Co.). Dec. 22, 1919. Protective arrangements. - To prevent damage to the supports of transmission line wires by surges of steep wave front which might arc over and destroy the insulation, the live wire, Fig. 1, is supported by a capacitance, such as the insulator 3, and a resistance 4 in series therewith. The arrangement is stated to act selectively, so that, under normal conditions, the voltage across the support is practically all across the capacitance, whereas, under surge conditions, the voltage is across the resistance. The resistance preferably consists of a rod 5, Fig. 3, of carbon, &c., enclosed in an insulating casing 6 of porcelain, &c., fitted with ends caps 7.
Patent GB-749794-A (GB)
Title: Improved tool for making tee or branch joints in tubing
IPC: B21C37/29
Filed: 1953-11-19
Abstract: 749,794. Making pipe fittings. COLLIER, A. Nov. 19, 1954 [Nov. 19, 1953], No. 32090/53. Classes 83 (2) and 83 (4). Flanging.-Apparatus for making a T or branch joint in a tube comprises a mandrel with a recess therein for receiving a plug, said mandrel being adapted for insertion in the tube so that the plug coincides with a hole drilled in the tube, a withdrawing tool adapted to be applied to the tube and to engage said plug and withdraw it through said hole whereby the material at the edge of the hole is drawn up and expanded into a flange, and a sizing tool for finally imparting to the flange an internal diameter equal to that of the T or branch tube. The mandrel 1 is attached to a handle 5 and the circular mandrel recess 3 accommodates the frusto-conical plug 6 which has a central threaded bore 7 for receiving the spindle 11 of the withdrawing tool (Fig. 2). Alternatively the plug may be partspherical or partly conical and partly domed. The withdrawing tool comprises a cylindrical member 8 shaped at one end to straddle the tube, the other end being solid and bored and threaded to receive a sleeve 9 on which is mounted a nut 10. The sleeve encloses the spindle 11, the lower end of which is threaded, the upper end carrying a tommy bar 13. The sizing tool (Fig. 3) comprises a tapped plug 14 provided with a bevelled leading edge 15 and a tommy bar 16 mounted on a central screw 17 the reduced lower end 18 of which screws into a tapped hole 4 in the base of the mandrel recess 3. In operation a hole of a diameter equal to that of the smaller end of the plug 6 is drilled in the tube wall and the mandrel and plug are arranged within the tube. The withdrawing tool is applied to the tube and the spindle 11 rotated to engage the plug and lock the tool to the tube. The nut 10 is now rotated to draw the plug through the hole to form the flange 20 (Fig. 4). The withdrawing tool is replaced by the sizing tool and the required internal diameter is imparted to the flange. Finally the branch tube is soldered or brazed to the tube 2. The mandrel 1 may have two or more recesses 3 to accommodate plugs of different diameters. Joints for branch tubes arranged at any desired angle to a main tube may be formed.
Patent GB-306983-A (GB)
Title: An improvement in travelling grates
IPC: F23H11/04
Filed: 1927-11-29
Abstract: 306,983. Underfeed Stoker Co., Ltd., and Wray, J. W. Nov. 29, 1927. Grates. - In travelling grates, such as those described in Specification 266,785, in which the individual bars can turn on horizontal axes, a construction is provided permitting the removal of a bar at any point in the run at the same time completely safeguarding against accidental displacement. To remove a bar it is slid axiallyto the left in the case of the bar a illustratedfar enough to allow its pivot b at, the other or right-hand end to clear its supporting hole in the carrier casting d when the right-hand end can be lifted and the bar withdrawn. In the normal inclined position of the bars this axial movement is prevented by the abutting edge of the axially aligned bar a<1> in the adjacent row and the movement can only be accomplished by lifting the bar into a position (at right angles to the carrier) in which it is out of register with the axially adjacent bar and in which, furthermore, a reduced portion t of its web can slip into a slot s in the web of the carrier, as shown in Fig. 2. The sama end may be attained by merely slotting the web of the bar just enough to clear the web of the carrier when the bar is lifted.
Patent GB-831199-A (GB)
Title: Testing device for data transmission instruments
Inventor: DIXON JOHN GORDON
IPC: G01N19/02
Filed: 1956-10-22
Abstract: 831,199. Dynamometers. MUIRHEAD & CO. Ltd. Nov. 22, 1957 (Oct. 22, 1956], No. 32131/56. Class 106 (2). [Also in Group XXXIV] A method of testing whether or not the friction torque of a spindle mounted concentrically in the cylindrical body 18 of an alternating current data transmission unit exceeds a predetermined value comprises attaching an unbalanced disc to the spindle and rotating the body by supporting it on a pair of parallel rollers which are geared together and driven at a known speed in the same direction. The unbalanced disc comprises a disc having a small metal button 10 attached to its inner face to unbalance it and if the friction torque is sufficient to carry the weight 10 past the top dead centre then the instrument under test is rejected. A testing device comprises a housing 11 containing a driving motor and gearing to drive four equally-spaced shafts, three, 12, 13 and 14, of which are shown, carrying rollers 15, 16 and 17 of equal diameter. Each roller is faced with rubber or a suitable plastic. Changespeed means may be incorporated to facilitate testing instruments having different body diameters. Switching means to reverse the direction of rotation of the rollers may also be incorporated. The Specification states that in a known similar kind of test, the rotation of the body is produced by rolling it down a plane of predetermined inclination.
Patent GB-674863-A (GB)
Title: Improvements in or relating to liquid-spraying devices
Inventor: KETCHER ARTHUR STUART
IPC: E03D9/04
Filed: 1948-12-14
Abstract: 674,863. Spray-producers. DEODANT, Ltd. Dec. 14, 1949 [Dec. 14, 1948], No. 32242/48. Class 69 (iii). In an atomiser in which a disinfectant &c. is sprayed by a jet of air from a compressor constituted by a cylinder 1 and piston 6 with associated rod 5, upon pulling a lavatory chain or opening a door, the piston rod 5 is made tubular to form a reservoir for the disinfectant. The piston is fitted with an air tube 8 which extends axially through the rod 5, the latter also locating a disinfectant uptake tube 12 which is soldered to the piston cap 9 and projects into the large base aperture 14 of a nozzle 11 mounted on said cap 9. A return coil spring 17 is disposed around the piston rod 5 between the piston 6 and the upper closing ring 4 of the cylinder 1.
Patent GB-454059-A (GB)
Title: Improvements in or relating to electric discharge tube oscillation generators
IPC: H03B5/10
Filed: 1935-11-21
Abstract: 454,059. Valve generating circuits. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL, 79, Boulevard Haussmann, Paris. Nov. 21, 1935, No. 32292. Convention date, Nov. 24, 1934. [Class 40 (v)] In a valve oscillation generator of the kind in which frequency is stabilized by the insertion of suitable impedances in the grid and plate circuits, as described in Specification 431,455, the plate circuit is shunted by circuits designed to select particular harmonics which are amplified and rectified to provide an automatic control bias for an auxiliary valve electrode, thereby maintaining constant the amplitude ratio of the harmonics and the fundamental. The grid circuit may include a reactance network designed to give resonance at the fundamental and harmonic frequencies. As shown, the back-coupled valve 8 has a tuned circuit 9 connected to the plate through a coil 10. The plate is connected to earth through a rejector circuit 1 for blocking the fundamental, in series with a number of branched circuits 2, 3 designed to accept the various harmonics. Voltage from one of these is applied to the grid of an amplifier 4 feeding a rectifier 5 having a load resistance 6. Voltage varying with the amplitude of the chosen harmonic is tapped from the resistance 6 and applied to an auxiliary grid 7, which may be screened, of the valve 8. In order to prevent generation of harmonic voltages in the grid circuit, due to grid current, the grid coil 11 is connected to the grid through a reactance network comprising a condenser 12 shunted by a number of inductance-capacity branches 13, 14. These are designed to give series resonance in the grid circuit at the fundamental and harmonic frequencies. The Specification also discusses the frequency stabilization of an oscillator in which the tuned circuit is inductively coupled both to the plate and to the grid circuit, Fig. 4 (not shown).
Patent GB-1267645-A (GB)
Title: Securing means for mounting of equipment to tractor
IPC: A01B59/06
Filed: 1970-07-03
Abstract: 1,267,645. Tractor hitches. HYMAS AS. 3 July, 1970 [5 July, 1969], No. 32369/70. Heading A1P [Also in Division B8] Hitch arms 7, clamped to a tractor rear axle by plates 4 and to the body of the tractor by plate 12, are associated with pivoted arms 15, the respective arms having hooks 13, 14 which clamp on an implement mounting by operation of rods 17. The arms 7 are pivoted to the plates 4 and have ends 9 inserted in bearings 10 on a cross member 11 fixed to plate 12 whereby the arms can be pivoted and moved longitudinally during assembly on the tractor.