baber/WOPTO huggingface dataset:
Patent GB-1300951-A (GB)
Title: Improvements in and relating to electrical contact brush holders
Inventor: DINGLEY GODFREY
IPC: H01R39/40
Filed: 1969-01-09
Abstract: 1300951 Contact brush holders MORGAN COMPONENTS Ltd 7 April 1970 [9 Jan 1969] 1422/69 Heading H2A In an electrical contact brush holder, e.g. for a dynamo electric machine, comprising an open ended box 1 in which an appropriately dimensioned brush 3 can slide to protrude endwise to a working position, there is provided a brush detent which is manually adjustable. Upon raising the clip 6, carrying the brush spring 4 on insulating strip 5, it can be rotated about pivots 14, whereupon brush 3 may be locked in a raised position by the engagement of the foot 15. A rubber cushion (16) urges the foot against the brush, the spring 4 providing a stabilizing action. The clip 6 is held in its working position by lugs (11) engaging in a hole 12.
Patent GB-816885-A (GB)
Title: Improvements in or relating to shell moulding
Inventor: SULLY ARTHUR HENRY
IPC: B22C1/02
Filed: 1957-01-15
Abstract: A shell moulding composition suitable for the casting of steel consists of 92 to 98 per cent by weight of an olivine and 8 to 2 per cent by weight of a phenol-furfural, urea-formaldehyde or phenol-formaldehyde resin as binder.  Some of the olivine may be replaced by forsterite and/or chrome ore and from 1 to 4 per cent by weight (based on the total composition) of manganese dioxide of at least 80 per cent purity.  In the examples, specific compositions of (1) olivine and a powdered phenolic resin, and (2) olivine, manganese dioxide and a powdered phenolic resin are disclosed.
Patent GB-1066526-A (GB)
Title: Columns
IPC: E06B3/263
Filed: 1964-04-27
Abstract: 1,066,526. Columns for curtain walls. R. PHILLIPPART. April 27, 1964 [April 27, 1963], No. 1499/66. Divided out of 1,066,525. Heading E1R. A column or upright for curtain walls comprises two tubular elements 1, 2 juxtaposed on opposite sides of a heat and/or sound insulating layer 3. The columns may be formed by separate sections, each having elements 1, 2, the sections being connected end-to-end by spigot-like connectors, Fig. 9 (not shown). Grooves 11, 12, 13 extending longitudinally along the sides of the column may be engaged by ribs 42 on members 41 over which the ends of cross members B of the curtain wall are engaged. In a modification the members 41 are bifurcated or comprised by two separate spaced members. Figs. 8 and 7 respectively (not shown) for use with two-part cross members.
Patent GB-554028-A (GB)
Title: Improvements in or relating to the combustion spaces of compression-ignition internal combustion engines
IPC: F02B19/14
Filed: 1942-02-05
Abstract: 554,028. Fuel-injection engines. ELLIS, E. D., and FOWLER & CO. (LEEDS), Ltd., J. Feb. 5, 1942, No. 1520. [Class 7 (iii)] The combustion chamber 1 comprises a parallel-walled bore formed directly into the body of the cylinder head, and arranged to overlap the cylinder wall and form a restricted entrance 8, Figs. 1 and 2. Its axis may be at right angles to the face of the cylinder head, or inclined thereto, either towards the cylinder as shown, or away therefrom. The axis may also be in a radial plane of the cylinder as in Fig. 2, or inclined towards the inlet or exhaust valve 9 or 10. In modifications, the chamber may be formed with a secondary bore 1x, either as shown in Fig. 7 or Fig. 10, forming the restricted entrance.
Patent GB-545269-A (GB)
Title: Improvements in the manufacture of hardenable steels
IPC: C22C38/02
Filed: 1941-02-05
Abstract: 545,269. Alloys. ELECTRO METALLURGICAL CO. Feb. 5, 1941, No. 1552. Convention date, Jan. 5, 1940. [Class 82 (i)] Deep-hardening properties are imparted to hardenable steels, which may contain various proportions of manganese, chromium, tungsten, molybdenum, nickel, phosporus, sulphur &c. by causing them to contain 0.005-0.05 per cent. of boron and 0.1-2 per cent. of silicon, and if desired one or more grain-refining elements which may include aluminium, beryllium, magnesium, calcium, barium, strontium, alkali metals, titanium, zirconium, cerium, hafnium, thorium, vanadium, niobium, tantalum and uranium, in a total amount, for example, 0.03-1 per cent., greater than that required for grain refinement. These elements may be added as a composition consisting of iron, 25-85 per cent. of silicon, and specified proportions of certain of the other elements and part or all of the boron may be introduced as a constituent of such a composition. Specification 525,706 is referred to.
Patent GB-896809-A (GB)
Title: Improvements relating to fluid distributing systems
IPC: F16N27/00
Filed: 1961-01-13
Abstract: 896,809. Hydraulic apparatus. TRABON ENGINEERING CORPORATION. Jan. 13, 1961 [March 21, 1960; Oct. 6, 1960], No. 1552/61. Class 69 (2). [Also in Group XXXIV] A lubricant system for supplying measured quantities of lubricant to e.g. bearings 11-18, Fig. 1, against a back pressure comprises a pump 38 which supplies lubricant from a source 28 through a cycling distributer 27 into branch lines 26, and thence to the bearings. A pressure responsive switch 39 is actuated when a leak or blockage occurs in any of the branch lines, thus increasing the pressure in line 30 so that motor 38 is switched-off automatically or manually. A ball valve 41 adjacent each bearing supplies the back pressure, and a valve 40 on the outlet side of the distriburer supplying each branch 26, allows lubricant to flow unless the back pressure is reduced by e.g. branch 26 being ruptured. Each valve 40, Fig. 3, comprises a balanced piston 45, 46, which normally allows flow through a ball valve 50, and passages 52, 54 to branch 26, but if the latter is ruptured the pressure in a passage 58 drops, and a spring 48 moves the piston to cut-off the supply, thus increasing the pressure in line 30, which actuates switch 39. A tell-tale 60 is operated by the piston to indicate a leak. In a modification, valve 41 is replaced by a valve 41A, Fig. 3A, which has a spring-urged sliding member 42A having a bore 45A, and a port 46A. In a further modification a number of branch lines 26 are connected to additional distributers, which in turn are connected to additional bearings. In this ease valves 40 are replaced by valves 140, Fig. 6, located at the inlet end of the distributers. Each valve 140 comprises a spring-urged piston 145 which is normally held open to allow flow through ball valve 153, and passages 155-157, but is closed by spring 148 when the back pressure falls. Specifications 720,038, 757,544 and 884,244 are referred to.
Patent GB-606728-A (GB)
Title: Improvements in or relating to overhead cranes
IPC: B66C7/00
Filed: 1946-01-17
Abstract: 606,728. Railway vehicles. MATTERSON, Ltd., MATTERSON, W. C. M., and MILLER, M. Jan. 17, 1946, No. 1620. [Class 103 (vi)] [Also in Group XXX] In an overhead crane of the kind wherein a carriage provided with the hoisting mechanism has two pairs of track wheels mounted on separate axles and running on two overhead rails, one of the pairs of track wheels are adapted to change their axial relationship in an interdependent manner so that the elevations of the track wheels to the carriage are automatically adjusted in opposite directions by the effect of the turning moment of the hoisting mechanism or variations in the levelness of the track. In the embodiment shown, the adjustable wheels of the crane carriage are mounted on eccentric end portions 4, 5 of an axle 3 which is rotatably mounted in frame members 1, 2 of the carriage, the portions 4, 5 being angularly offset at 180 degrees from one another. These portions may be formed by bending or by turning the ends of the shaft 3 eccentrically relative to the main portion of the shaft. In a modification the eccentric portions 4, 5 are arranged between the frame members 1, 2.
Patent GB-1175641-A (GB)
Title: Improvements in Steam Turbine Electro-Hydraulic Control Systems
IPC: F01D17/18
Filed: 1968-01-11
Abstract: 1,175,641. Steam turbine control. GENERAL ELECTRIC CO. Jan. 11, 1968 [Jan. 12, 1967], No. 1653/68. Heading F1T. [Also in Division G3] A steam turbine control system has a plurality of valves 1...4, Fig.1, each supplying steam to a circumferentially spaced nozzle arc inside the turbine casing 5, an electro-hydraulic amplifier 9 to position each valve in response to a common electrical valve positioning signal first means 31... 34, Fig. 3, for varying the respective gains of the amplifiers, second means 39...42 for supplying biasing signals to the amplifiers, and means 45 to simultaneously vary the gains of the first means and relative biases of the second means to transfer the turbine from partial to full arc operation. Each valve 12, Fig. 2, is adjusted by a piston 13 controlled by a valve 14 and a pivoted jet 15 fed with signal and bias voltages through amplifiers 19 and 20. A linear variable differential transformer 24 provides a signal for a feedback loop including a demodulator 25 and a function generator 26 which may be used to compensate for a non- linear variation between steam flow and valve position. Each valve opens when the signal voltage is sufficient to overcome the bias applied to its amplifier and the biases are so adjusted by potentiometers 35...38 that the valves are opened in sequence by an increasing signal voltage during partial arc operation. During full arc operation, however, a common earthed bias signal is applied to valves 2 to 4 as shown in Fig. 3 and the gain of the amplifiers is simultaneously reduced by a factor equal to the reciprocal of the number of valves. Valve 1 has a screwdriver adjustment 44 to provide zero bias during both full and partial arc operation.
Patent GB-413026-A (GB)
Title: Improvements in or relating to dynamo-electric variable speed power transmitting mechanisms
IPC: H02K31/04
Filed: 1933-01-18
Abstract: 413,026. Systems for transmitting mechanical power; homopolar machines. JAPOLSKY, N., 35, Cholmeley Crescent, Highgate, London. Jan. 18, 1933, No. 1656. [Classes 35 and 38 (iv).] A dynamo - electric power transmitting mechanism comprises two homo-polar machines, the armature, polepieces and field winding of each being almost entirely surrounded by an enclosure of magnetic material to shield them from any magnetic field arising in the other set of elements. The enclosure comprises an outer casing A with an internal annular extension A', and two end covers B<1>, B<2> secured to the pole pieces C<1>, C<2>. The armature discs D<1>, D<2> are fixed on the shafts E', E<2> respectively and are excited by the field windings K<1>, K<2>. The discs rotate in mercury I and the adjacent ends of the shafts are electrically connected through a mass of mercury. The bearings of the shafts are insulated by sleeves G, J. When the fields are excited and one of the shafts is driven, a current passes through both discs causing the armature of the other element to rotate. By regulating the strength of the magnetic fields, the speed ratio of the shafts can be varied. In modifications (not shown), the discs are of different sizes and the shafts may be parallel but not coaxial or may be inclined to each other. In Fig. 8, in order to prevent reaction due to current in the armatures, radial slots L<1>, L<2> and a dividing slot M in a medial plane, are provided, either open or filled with insulating material, and the electrical connection is re-established by an outer conducting ring N. Again, to prevent inequality due to the slots L<1>, L<2>, plates of magnetic material P<1>, p<2> are fitted to the faces of the internal extension A<1>. In order to give a compounding effect, the armatures are provided with curved radial slots provided with covering sheets of ferromagnetic material.
Patent GB-735512-A (GB)
Title: Improvements in and relating to cathode ray tube apparatus
IPC: H03K4/26
Filed: 1952-01-21
Abstract: 735,512. Cathode-ray tubes. DYNAPORT RADIO & TELEVISION, Ltd., and HOFMEISTER, 1. April 21, 1953 [Jan. 21, 1952], No. 1656/52. Class 39 (1). An inductor with a magnetically saturable core is connected in the circuit of a scanning coil of a cathode-ray tube and is so adjusted in position in the field of the tube focusing magnet that the deflection is linear with time. The inductor 3 and ferrite core 4 is mounted on a pivot 7 by a stirrup 2. The stirrup is adjusted by a lever. The focusing magnet 9 may be a permanent magnet.
Patent GB-682529-A (GB)
Title: Improvements in spindles for spinning, doubling and twisting machines
IPC: D01H7/04
Filed: 1950-01-23
Abstract: 682,529. Spinning &c. spindle apparatus. T.M.M. (RESEARCH), Ltd., and WESTALL, A. Jan. 10, 1951 [Jan. 23, 1950], No. 1713/50.. Class 120(ii) [Also in Group XXXIV] In textile ring spinning and like spindle arrangements, a spindle mounting comprises in combination with a bearing tube, in which the blade is rotatably supported at the top in a journal bearing and at the bottom in a footstep bearing, a sleeve fitting on the bearing tube in the region of the spindle wharve, a rigid outwardly projecting flange on said sleeve, said sleeve being supported by said flange in the spindle bolster between resilient cushions permitting lateral oscillation within the bolster of the bearing tube and the rotating parts carried thereby. The wharve 10 and the spindle 11 are rotatably supported in a bearing tube 9 by, a roller bearing 12 and a footstep bearing 13. The tube 9 has pressed thereon a sleeve 8 formed with a flange 7 which fits within an annular recess 6, formed in the upper part 5 of the bolster. The flange 7 is clamped between resilient washers 6 and 16 by means of a screwed gland 17. Irregularities in the seating surfaces of the washers are compensated by a plurality of springs 20 or grubscrews (not shown), which bear on a metal washer 18. The bolster is secured to the rail 1 by a nut 4 which has affixed thereto an oil reservoir 22 which is preferably transparent. The spindle 11 is retained by a clip 24 and is provided with a brake 25 remotely operated in the manner described in Specification 680,664.
Patent GB-589131-A (GB)
Title: Adhesives
IPC: C08G14/08
Filed: 1944-01-29
Abstract: A method of preparing a dry layer of heat-setting adhesive comprises applying to a surface an aqueous solution of a urea-formaldehyde condensation product together with an ammonium salt of an acid strong enough to cause hardening of the urea-formaldehyde condensation product and a quantity of a polyhydric phenol in excess of any amount that will combine with the free formaldehyde that may be present, and drying the mixture. The solution may have been previously treated with a formaldehyde fixing agent, e.g. urea, thiourea, melamine, resorcinol, catechol, quinol, pyrogallol, oxyhydroquinone, phloroglucinol, and their methyl derivatives, in order to remove some or all of the free formaldehyde.  The ammonium salt may be the sulphate, bromide, or chloride, and the polyhydric phenol may be one of those specified above.  The constituents of the mixture may be applied to the surface by the usual methods, separately or simultaneously.  The dry layer of adhesive may contain basic material, e.g. borax, sodium phosphate, to compensate for the acidity of the polyhydric phenol and the ammonium salt.  In an example, a dry urea-formaldehyde condensate, which may contain rye or wheat flour, is dissolved in water and reacted with urea to fix the free formaldehyde.  The resulting solution is mixed with a solution containing resorcinol and ammonium chloride, spread on a surface, and dried.  Surfaces so treated may be glued together at 200 DEG  F.
Patent GB-1384049-A (GB)
Title: Nuclear reactors
IPC: G21C19/303
Filed: 1971-01-14
Abstract: 1384049 Nuclear reactors BRITISH NUCLEAR DESIGN & CONSTRUCTION Ltd 22 March 1972 [14 Jan 1971] 1807/71 Heading G6C  In a helium-cooled nuclear reactor, a helium purification system is mounted within the concrete pressure vessel wall thickness, adjacent to the boiler system. The purifier 20, is mounted within the pad 14, together with the boiler 16, and circulator 18. Heated helium is drawn through passage 13 from the core chamber 12, and is urged downwardly through boiler 16 and upwardly through the annulus 36, to the core chamber inlet 15. A proportion of the helium, at 30, flows through pipe 28 into purifier 20 and emerges at the low pressure zone 32. Helium sampling is effected through the pipe 34.
Patent GB-499918-A (GB)
Title: Improvements in or relating to rotary converters
IPC: H02K13/14
Filed: 1938-01-19
Abstract: 499,918. Botany converters. SIEMENSSCHUCKERTWERKE AKT.-GES. Jan. 19, 1938, No. 1813. Convention date, Jan. 19, 1937. [Class 35] In a rotary con verter the voltage of which is adjusted by brush - shifting, cur rent-limiting means such as saturable iron cored choking coils o: rectifiers are connected between the direct current circuit and that tapping of the arma ture which is in each instance connected to the segment leaving a brush. In the form shown in Fig. 1, tappings on the armature winding are connected to segments of the two commutators 2, 3 alternately, and rectifiers 4-7 are connected between the brushes and the D.C. terminals 14 to enable the brushes to be rocked without causing sparking. Alternating-current is supplied to three of the tappings through sliprings 10. Instead of varying the voltage by brush shifting, it may be varied by providing two axially displaced distributed field windings and varying the ratio of the currents supplied to the two windings. In the form shown in Fig. 2, the single commutator has conducting and insulating segments and the brush widths and dispositions are such that during transfer from one conducting segment to the next, both segments are simultaneously connected to the associated direct-current conductor for a short time through the rectifiers 4, 7, or 5 and 6.
Patent GB-1524891-A (GB)
Title: Breathing apparatus
IPC: A62B7/02
Filed: 1976-01-16
Abstract: 1524891 Respirator with oxygen control FRANCE ARMED FORCES-MINISTER OF 16 Jan 1976 [17 Jan 1975] 01826/76 Heading A5T [Also in Division F2] Self-contained, closed circuit breathing apparatus comprises a bellows breathing chamber 8 which is connected to a mouthpiece 11 and which has three, gas inlet lines for the respective supply of oxygen, diluent gas and emergency respiration gas mixture. Increased external pressure on the bellows causes it to contract whereby contact of plate 32 with flap 21 causes diluent gas inlet line valve 23 to open and restore equilibrium. The supply of oxygen via line 37, 37a is controlled by an electromagnetic valve 36 in response to the PO 2  sensed by a sensors 38. The sensor, electromagnetic valve and controls therefor are located in a casing 19 that communicates with the bellows interior and, via flexible tubing 26 with a wrist braclet 25 that includes PO 2  read out controls and alarm. The return line from the mouth piece includes a soda lime cannister 10 to remove CO 2 . Should the oxygen or diluent supply fail a slide valve 15 can be operated manually to switch in the emergency respiratory gas mixture in cylinders 4a, 4b. The bellows 8 includes a pressure relief valve 14. The electromagnetic valve 36 and controls are powered by 12v cadmium-nickel batteries 35. The apparatus can be used by a diver and the bracelet may carry a change-over switch whereby the desired PO 2  can be varied in accordance with the external pressure.
Patent GB-1026763-A (GB)
Title: Process for the production of reinforced synthetic resin articles
IPC: B29C49/20
Filed: 1963-01-16
Abstract: 1,026,763. Laminates; moulding. W. ROTH, and A. KERN, [trading as FIRMA DIENER & ROTH KOMM. GES.]. Jan. 16, 1963, [Jan. 16, 1962], No. 1984/63. Headings B5A and B5N A sandwich layer comprising polyethylene foils enclosing glass fibres in the form of fluffs, slubbing, mats or net-like fabric is applied to the surface of a pre-formed polyethylene container and the two fused together under pressure at an elevated temperature. The polyethylene of the container or the fibre reinforced armouring may be mixed with a liquid flowing resin, e.g. a styrene butadiene copolymer; and a liquid copolymer resin may be added with a hardener to the fibrous reinforcement. The preformed container may be formed in a mould provided with blank form parts or inserts giving recesses in the formed container, and the inserts are removed and replaced by portions of the sandwich assembly, the container returned to the mould and the two elements fused together under pressure. The foils and fibres may be welded together before being placed in the mould as prefabricated reinforcements.
Patent GB-415642-A (GB)
Title: Improvements in devices for grinding rollers with a convex longitudinal curvature on circular grinding and like machines
IPC: B24B19/12
Filed: 1934-01-20
Abstract: 415,642. Grinding machines. PFUNGST-STIFTUNG, DR. A., (trading as GES. DES ACHTEN NAXOS-SCHMIRGELS NAXOS - UNION SCHMIRGEL - DAMPFWERK FRANKFURT A. M., J. PFUNGST), 43, Waldschmidtstrasse, Frankfort-on-Main, Germany. Jan. 20, 1934, No. 2067. Convention date, Jan. 20, 1933. [Class 60.] Apparatus for grinding rollers with a convex longitudinal curvature, i.e. of barrel shape, comprises a grinding-disc a on a shaft b journalled eccentrically in a bushing c secured to a lever e and rotatable in the frame of the apparatus. The lever e is moved towards and from the axis of the rotating work by means of a bell-crank lever h oscillated by a cam k and engaging a knife-edge f carried by the lever e. The knife edge is adjustable along the lever by a screw l, and, to enable fine adjustments to be made, the knife-edge also is adjustable perpendicularly to the lever e by a screw q. An indicator u operated by a lever t engaging a cavity r in the bushing c, is provided to show the adjustments effected.
Patent GB-404462-A (GB)
Title: Improvements in or relating to yarn winding machines
IPC: B65H54/70
Filed: 1933-01-21
Abstract: 404,462. Removing lint released in unwinding bobbins of yarn; creel-arrangements. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Universal Winding Co.; 95, South Street, Boston, U.S.A.) Jan. 21, 1933, No. 2068. [Classes 120 (ii) and 120 (iii).] In a yarn-winding machine a tubular envelope or cell 20, Fig. 2, surrounds each supply bobbin 18 and a current of air is maintained through the members 20 to remove the lint released in unwinding The members 20 are constructed as open cylinders and communicate at their lower ends with suction trunks 50 through which the lint is removed. Each supply bobbin 18 is supported on a skewer 24 carried by an arm 26 secured to the lower end of sliding rods 28. When the bobbin 18 is exhausted a handle 30 on a shaft 52, Figs. 3 and 4, is turned to depress the rods 28 against a spring 60 through an operating arm 54 engaging a dog 56 on the head 58 and to carry the skewer 24 below the ledge 32. A yoke 64 connected to the ends 28 is similarly depressed and, after removal of the skewer 24, its extended ends 66 engage with rearward projections on arms 68 which pivotally support the cells 20 at 70 and swing the cell outwardly about the pivot 70 into doffing position, the empty bobbin being discharged down one of the inclined guides 36, 38 on to the conveyer 34. The tension and guide device 80 is also rocked into the rear position shown in Fig. 2, through arms 72, 74. When the arm 54 has completed its downward movement it moves past the dog 56 the skewer 24 and rods 28 then being returned to their original position by the springs 60.
Patent GB-830473-A (GB)
Title: Improvements in or relating to tractors
Inventor: MAUGHAN JOHN
IPC: B60D1/46
Filed: 1957-01-21
Abstract: 830,473. Tractor power-lift mechanisms. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN Ltd. Dec. 20, 1957 [Jan. 21, 1957], No. 2178/57. Class 79(1) The laterally spaced lower links 2 of a tractor power-lift mechanism are adapted to be selectively engageable with pivots 8 on the tractor or with pivots 9 on a trailer hitch structure 12 whereby the latter may be raised and lowered about a pivot 11 by the power-lift mechanism. When the links 2 are engaged with the pivots 8, the structure 12 is supported by a spring-loaded U-shaped member 14 which is rotated through 180 degrees from the position shown to engage a hole 19. The pivots 9 are formed by extensions of a cross bar 13 carrying a hook 10 which is prevented from disengaging the drawbar by a pin 20.