baber/WOPTO huggingface dataset:
Patent GB-420018-A (GB)
Title: Improvements in electromagnetic pawl and ratchet driving mechanisms
IPC: H01H63/20
Filed: 1933-05-23
Abstract: 420,018. Automatic exchange switches. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, SHARPE, H. D., 181, Warbreck Moor, Aintree, and SAXBY, R. N., 36, Millersdale Road, Mossley Hill, all in Liverpool. May 23, 1933, No. 14896. [Class 40 (iv)] [See also Group XXXV] In an electromagnetic pawl and ratchet driving mechanism for step-by-step automatic switches, the magnet core and polepieces are formed of a single casting. As shown, the cast iron core and polepieces 10, 11 co-operate with an armature 14 pivoted at 16 and having a plate 18 to increase its section and a pawlcarrying arm 17 which effects the movement of the switch wipers on the forward movement of the armature. When the magnet is energized the movement of the armature is resisted at first only by a light spring 20 which bears against a bracket 21, but the armature also carries a stronger spring 19 which is only effective when it is brought against the adjustable screw 22. To minimize the effect of residual magnetism, a brass inset 23 prevents contact between the armature and polepiece 10 and there is an adjustable air gap at the other polepiece. As an alternative, the spring 19 may be normally under tension and engaging a stop so that it is only operative when the armature comes into contact with it and lifts it from the stop. The screw 25 may project into a slot in a mounting plate (not shown) having a second hole corresponding to the position of the pivot pin 16, extended in this case to form a centre about which the magnet may be angularly adjusted. Both magnets of a two-directional switch may be of the form shown.
Patent GB-741049-A (GB)
Title: Improvements in the manufacture of rubber
IPC: C08C3/00
Filed: 1952-06-13
Abstract: Rubber in powder form is obtained from naturally or chemically coagulated rubber by disintegrating the rubber coagulum to crumb optionally with bleaching, and then subjecting the crumb to a second stage grinding in an attrition or hammer mill before or after vulcanizing.  Any free hydrochloric acid may be removed by an ammoniacal treatment.  In an example, cut lump coagulum was cleaned by means of a plantation scrap-washer, and was then passed through an attrition mill to give pieces 1/4 to 3/8 inch in diameter, vulcanization was effected by adding the rubber with water to an open heated steam vessel together with an aqueous slurry of sulphur, zinc oxide, sodium diethyl dithiocarbamate and a dispersing agent and the whole heated at 90-95 DEG  C. for one hour.  After drying at 100-105 DEG  F., the vulcanized rubber was in the form of a free flowing powder.  Talc is preferably added during grinding.
Patent GB-1391626-A (GB)
Title: Tuner control units for electrical tuning circuits
IPC: H03J5/02
Filed: 1972-03-30
Abstract: 1391626 Tuning arrangements and indicators INTERNATIONAL STANDARD ELECTRIC CORP 30 March 1972 [5 April 1971 (2)] 15079/72 Heading H3 [Also in Division G1] In a combination of a tuner control unit, Fig. 1, suitable for controlling an electrical tuning circuit as defined below, and a preselector unit, Fig. 2, the tuner control unit comprises a panel 1 having a plurality of finger-touchcontact areas 2 arranged in a first row, a plurality of apertures 3 closed by transparent material and each positionally associated with a respective contact area, an indicator device disposed behind each aperture, and a printed circuit board 8 containing circuitry. Touching of a touch-contact area 2 causes a control signal to be selected suitable as the control signal for the electrical tuning circuit and the circuitry also causes operation of the indicator device positionally associated with the touched area. The preselector unit, Fig. 2, provides control signals from which the above control signal is selected and has a plurality of switches 3 each movable to select a range of control signal magnitudes and a plurality of variable resistors 8 each associated with a respective switch and each variable resistor is adjustable to determine a signal magnitude which corresponds to any one of the tunable frequencies in the range selected. The electrical tuning circuit is disclosed in Specification 1,331,625 and comprises a tuning element and first switching means operable to select any one of a plurality of adjustable current paths so as to connect the selected path in series with a common impedance across a power source to provide a control signal for the tuning element. In the tuner control unit shown in Fig. 1, by touching electrodes 6, 7 a red numerical signal disc numbered 1-6 is illuminated behind a transparent window 3. A green disc may be provided behind a further transparent window 4 to indicate the on condition of the unit or associated receiver. A push-button key 5 may actuate a main power switch. The touch contacts 6, 7 are insulated from each other and the contacts 7 may be formed as depressions in the panel 1 which may be chromium plated. The finger touch areas may be rectangular or shaped as digits or numerals. Shock protection resistors 9, associated input amplifiers 10 and finger touch circuits 11 are mounted on a printed circuit panel 8 which has a connector strip 12 for connection to the receiver. In the preselector unit, Fig. 2, pivoted waveband switch levers 3 each have end contacts which engage contacts on a printed circuit board 2 (Figs, 3 and 4, not shown). The spindles 8 of potentiometers project through the front panel 1 and dials 9 are operated by a corresponding potentiometer spindle and are calibrated to indicate the channel to which the receiver such as a television is tuned. The preselector unit is connected to the finger touch sensor unit and the elements of the preselector unit may be arranged behind a flap in the control panel of the television receiver.
Patent GB-664707-A (GB)
Title: Improvements relating to guides for sliding windows
Inventor: OLDHAM ALEXANDER MAUGHAM
IPC: B60J10/04
Filed: 1949-06-07
Abstract: 664,707. Sliding windows. HALLAM, SLEIGH & CHESTON, Ltd. June 1, 1950 (June 7, 1949], No. 15080/49. Class 20(iii) A sliding window assembly, especially for a vehicle, has a glass panel carrying an edging strip which is provided externally with a channel-shaped housing portion containing a separate movable guide channel which is spring pressed outwardly into engagement with a co-operating guide rail on the window frame. In the form shown, the sash 1 of a sliding window for a vehicle,.is surrounded by a metal edging member 2 of H-cross section. The outer channel 5 of member 2 houses a movable guide channel 6 of metal or a plastic and which is pressed outwardly by leaf springs 7 into engagement with a guide rail 9 secured to the vehicle body 10. The guide channel 6 is formed with projecting stops 11 which engage in rebates 12 of channel 5 to prevent the guide channel from being forced entirely out of channel 5.
Patent GB-403976-A (GB)
Title: Improvements in conveying devices
IPC: F27B9/20
Filed: 1932-05-27
Abstract: 403,976. Conveying furnace charges. LYSAGHT, Ltd., J., Orb Iron Works, and PLUMLEY, E. W., 40, Edward VII Avenue, both in Newport, Monmouthshire. May 27, 1932, No. 15128. [Class 51 (ii).] In a conveyer for furnaces of the kind comprising sets of beams which are reciprocated horizontally and vertically, the vertical movement is effected automatically as a consequence of the horizontal reciprocation. The beams A rest on rollers A' freely revolving on pins A<2> carried by and extending through corresponding arms of a series of bell-crank levers C rigid with a transverse shaft E journalled in bearings E<1>. The beams B, Fig. 1, rest on rollers B<1> similarly mounted on bell-crank levers D also rigid with the shaft E. During the horizontal reciprocation of the beams by mechanism not shown, the levers are oscillated by blocks F, F' projecting downwards from the beams which engage with the supporting rollers A<1>, B<1> and corresponding striking rollers A<0>, B<0>. The articles conveyed, such as metal sheets S, rest on high grade refractory blocks N which are supported by refractory stools O having transverse passages P for the circulation of heating and cooling gases. The stools may rest on beams Q of ordinary refractory material which are carried by the beams A, B. Baffles R may be arranged to set transverse currents of gas circulating around the sheets in order to equalise the heating and cooling effects on their upper and lower surfaces. In a modification the beams have mounted on their undersides freely revoluble rollers which on reciprocation of the beams move between pairs of blocks carried by bars which are pivotally supported by arms fast upon a transverse shaft.
Patent GB-377774-A (GB)
Title: Means for delivering cigarettes in a longitudinal direction
IPC: A24C5/32
Filed: 1931-05-22
Abstract: 377,774. Feeding cigarettes in uniform position. LEGG, O., 21, Goswell Terrace, Goswell Road, London. May 22, 1931, No. 15144. [Class 117.] Cigarettes are arranged in a longitudinal direction by passing down a shoot provided with longitudinal grooves 2 and having obstructions 4 distributed between the grooves. Such obstructions may be upstanding pins, or chains 6, flexible material, or pins depending from transverse bars above the shoot. The pins may project through slots and may be intermittently withdrawn. A cam-actuated arm may agitate the shoot to prevent sticking. Specification 318,684, [Class 117, Sifting &c.], is referred to.
Patent GB-593838-A (GB)
Title: Improvements in and relating to the production of formaldehyde
IPC: C07C45/38
Filed: 1945-06-15
Abstract: Catalysts used for the oxidation of methanol to formaldehyde contain phosphorus, molybdenum as a promoter and one of the metals manganese, magnesium, cadmium and the alkaline earth metals, the atomic ratio of phosphorus to molybdenum being at least 2 : 1.  They may be further promoted by the addition of alkali metal phosphates and carbonates and are prepared as follows: (1) manganese-phosphate is precipitated by adding ammonium hydroxide to a solution of manganese nitrate and phosphoric acid, and after washing and drying is kneaded with ammonium molybdate and dried; (2) hydrated manganese acetate is kneaded with orthophosphoric acid and ammonium molybdate and ignited; (3) manganese phosphate is kneaded with ammonium molybdate and sodium hydrogen phosphate; (4) calcium phosphate is p  precipitated by means of ammonia from a solution of calcium nitrate and phosphoric acid. After washing, the calcium phosphate is kneaded with ammonium molybdate and water and ignited; (5) calcium phosphate-molybdate catalyst prepared as in (4) is further promoted by adding sodium hydrogen phosphate and igniting.ALSO:Formaldehyde is prepared by oxidizing methanol in the vapour phase with an oxygen containing gas in the presence of an oxidation catalyst containing (1) phosphorus, (2) molybdenum, as a promoter, and (3) one of the metals manganese, magnesium, cadmium and the alkaline earth metals, the atomic ratio of phosphorus to molybdenum being at least 2 : 1.  The catalyst may also be further promoted by the addition of alkali metal phosphates or carbonates and may be supported on a carrier such as pumice, silica gel or infusorial earth.  Catalysts may be prepared as follows: (1) manganese phosphate is precipitated by adding ammonium hydroxide to a solution of manganese nitrate and phosphoric acid and after washing and drying is kneaded with ammonium molybdate and dried; (2) hydrated manganese acetate is kneaded with orthophosphoric acid and ammonium molybdate and ignited; (3) manganese phosphate is kneaded with ammonium molybdate and sodium hydrogen phosphate; (4) calcium phosphate is precipitated by means of ammonia from a solution of calcium nitrate containing also phosphoric acid.  After washing and igniting, the calcium phosphate is kneaded with ammonium molybdate and water and again ignited; (5) calcium phosphate-molybdate catalyst prepared as in (4) is further promoted by adding sodium hydrogen phosphate and igniting.  Specifications 280,712, 286,212, 296,071, 298,142, [all in Class 2 (iii)], and 547,743 are referred to.
Patent GB-684048-A (GB)
Title: The gas flushing of liquid masses
IPC: B22D1/00
Filed: 1950-06-19
Abstract: <PICT:0684048/III/1> <PICT:0684048/III/2> Apparatus for gas flushingmolten materials, e.g. the chemical treatment of molten salts by a gaseous reagent, comprises a container having an impervious refractory lining, a gas permeable refractory block inserted in the refractory lining and means for passing gas through the block into the molten material, the gas permeable block being composed of refractory material of particle size coarser than 65 mesh and 10-30 per cent of finely divided refractory material passing through a 100 mesh screen (Tyler Standard).  The block may have a porosity of 19.4-31.9 per cent.  As shown in Fig. 1 the porous block 4 is surrounded on its sides by an impervious lining 18.  The block is held in place by a screw 8 in a stirrup 7 bearing against a perforated plate 9 on the underside of the block.  A closed gas chamber 10 surrounds the block and is provided with a gas inlet 11 and a removable cover 13 to allow of adjustment of the block.  In the apparatus shown in Fig. 2 the block 4 is formed of a rammed in mass of the material, a perforated plate 15 being anchored in the block by means of projections 16.
Patent GB-1500584-A (GB)
Title: Method and apparatus for determining the moisture content of different kinds of materials
IPC: G01N27/04
Filed: 1975-04-15
Abstract: 1500584 Measuring moisture electrically ZELLWEGER USTER Ltd 15 April 1975 [22 May 1974] 15400/75 Heading GIN  A moisture measuring meter of the type including a pair of electrodes 1, 2 to which a voltage is applied and the current flowing therebetween is determined includes an adjustable scale graduated in moisture values. The electrodes 1, 2 may be in the form of needles, sleeves and plates and are connected to measuring instrument 3 including a housing 4 containing a current to voltage log converter 11, low input impedance amplifier 12 and a bridge circuit including balancing potentiometer 13 and lamps 7, 8. Potentiometer 13 is controlled by rotation of graduated dial 10. In operation when the battery 14 supply is switched on by one of the switches and the electrodes 1, 2 are placed in or in contact with the material to be tested. Dial 10 is then manually rotated to such a position where one of the two lamps 7, 8 is lighted but slight rotation of the dial in the opposite direction extinguishes the lamp and lights the other lamp. The reading of the dial 10 opposite the pointer 9 is then read off to indicate the moisture content. Dial 10 may be replaced by a similar one calibrated for a different material. Instead of a manually adjustable dial 10 battery 14 may be replaced by a discriminator which provides an unbalance signal to a motor which alters the setting of the potentiometer and rotates the dial, Fig.5 (not shown). Amplifier 12 may be provided with a feedback path incorporating a temperature sensitive element for temperature compensation, Fig.6 (not shown).
Patent GB-1135303-A (GB)
Title: Improvements in or relating to fish hooks
IPC: A01K83/02
Filed: 1967-04-04
Abstract: 1,135,303. Fishing. A. VISENTIN. 4 April, 1967 [5 April, 1966], No. 15414/67. Heading A1A. A fishing bait has hooks 2, 3, 4 pivoted on a body 1 and engaged by a member 8 attached to the line 6 whereby a pull on the line causes the member 8 to pivot the hooks. Springs 10 and 15 return the member 8 and hooks to the initial position when the line is relaxed. In an embodiment the springs 15 are replaced by elastic blocks.
Patent GB-723265-A (GB)
Title: Improvements in or relating to multiple box looms
Inventor: MOSELEY JOHN FREDERICK
IPC: D03D45/50
Filed: 1952-06-19
Abstract: 723,265. Controlling and cutting weft trails in multiple-box looms. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION. June 17, 1953 [June 19, 1952], No. 15415/52. Class 142 (2). In a multiple-box loom, the weft trails of the shuttles not at the picking position are held by suction clear of the path of the operative shuttle. Weft cutting means may be provided. In one embodiment, a suction nozzle is placed near the loom temple at the multiple-box side, the suction being adjusted by a movable sleeve covering a slot in the side of the nozzle. In a second embodiment (Fig. 3), a loom having a circular box f and a single box at the other side, has a suction chamber g inlaid in the raceboard adjacent the entrance of the circular box. The weft trails e<SP>1</SP>-e<SP>4</SP> after cutting are drawn down an aperture g<SP>1</SP> and the trail e<SP>5</SP> of the last shuttle to be picked extends from the selvedge to the box. When the shuttle arrives in the single box it moves the check strap which, through a spring and cord extending to the circular box side, opens a shutter beneath the aperture g<SP>1</SP>. The shutter holds the weft ends when the shuttles are picked. Weft cutting. The body n of the cutter is secured to the loom temple b and is slidably mounted on a bar o and has fixed and movable cutters p, p<SP>1</SP>respectively mounted upon it. The bar o is moved rearwardly as the slay recedes by a connection r<SP>1</SP> operated by a cam on the bottom shaft. The gear o<SP>4</SP> has a pin engaging a cam slot n2 in the body n and movement of the bar o causes the gear o<SP>4</SP> to turn a gear p<SP>3</SP> on the shaft of the movable cutter p<SP>1</SP> and thereby operate the cutters. A further suction device may be provided at the selvedge to prevent the cut weft ends t from being dragged into the shed.
Patent GB-355324-A (GB)
Title: Earth boring drills
IPC: E21B10/20
Filed: 1930-05-20
Abstract: 355,324. Earth-boring drills. CHICAGO PNEUMATIC TOOL CO., 6, East 44th Street, New York, U.S.A. May 20, 1930, No. 15509. Convention date, June 11, 1929. [Class 85.] An earth-boring drill has a roller cutter free to rotate but locked on its spindle against axial displacement by means inaccessibly and permanently enclosed between the interior of the roller cutter and its spindle. In Fig. 1, the drill head 1 is axially divided, each part having an integral spindle 2 with an annular groove 8 adapted to receive locking segments 7; on placing the roller cutters 4 in position, the circumferential walls of the latter first ride over the segments 7 and the base 9 of each cutter then engages an eccentrically-placed plunger 10 to compress a spring 11 bearing on a conical cap 14 acting through pins 12 on the segments 7, whereby when an annular groove 6 in the cutter registers with the segments, the latter are forced outward to lock the cutter. The segments may be circular or have part of their outer surface cut away to the curvature of the wall of the groove 6. Bushings 15, 16, may be provided on the spindles and the bushings 15 may be divided on a line radially of the drill head, or at rightangles to such radius, and have an eccentric end flange 15b engaging a recess in the head to prevent it rotating; a conical bearing portion 15c is provided. In a modification, the base 9 of the roller cutter has a projection entering the spindle to operate the locking plunger. In a further form, Fig. 8, the pins 12a are constantly acted on by a spring 12b the locking segments being bevelled to allow them to be retracted by the cutter; further the cutter spindles are integral with shanks b detachably fitting the drill head. To remove the cutters, a torch is applied adjacent the groove 6. Specification 306,889, [Class 85, Mining &c.], is referred to.
Patent GB-1183334-A (GB)
Title: Solenoid Operated Valves
Inventor: KING BRIAN MICHAEL
IPC: F16K31/56
Filed: 1966-04-07
Abstract: 1,183,334. Electromagnet. JOSEPH LUCAS (INDUSTRIES) Ltd. 26 May, 1967 [7 April, 1966], No. 15545/66. Heading H1P. [Also in Division F2] A solenoid-operated valve has two solenoids 11, 12 each with its respective armature 13, 14, the armature 13 engaging through rod 16, connected by a resilient washer 18 to member 19 a half-ball closure 20. The armatures are biased together by springs 27, 26, the latter acting between disc 17 on rod 16 and a cage 25. Latching balls 31 between the armatures hold each armature in its energized position on de-energization of its coil until the other coil is energized. Energization of coil 12 causes armature 14 to move to the left allowing flange 35a to cam the balls 31 inwardly under the action of spring 26 to permit the valve to open under fluid pressure and lock armature 14 in position. The valve will remain open until energization of coil 11 which moves the armature 13 to the right to seat the closure and allow the projection 37 to cam the balls 31 outwardly under the action of spring 27 to lock the armature 13 and valve 20 in position.
Patent GB-793708-A (GB)
Title: Improvements in or relating to cylinders and cylinder liners of internal combustion engines
IPC: C21D9/08
Filed: 1955-05-31
Abstract: That zone of the cylinder wall or liner of an internal combustion piston engine which is subject to maximum wear is heated by rotation relative to a burner device and then quenched, the remainder of the wall or liner being left untreated. Preferably the cylinder or liner is rotated and the burner device moved axially so that the heating is effected in a spiral or helical path of which the convolutions are at least contiguous. The cylinder or liner may be partially immersed in a water bath and the burner device located just above the water level.
Patent GB-869992-A (GB)
Title: Improvements relating to bodies consisting of synthetic resinous material reinforcedwith cords
IPC: B63B3/00
Filed: 1958-05-15
Abstract: 869,992. Moulding fibre-resin articles. HUTTER, U., and HANLE, E. May 15, 1958 [May 17, 1957], No. 15665/58. Class 87(2). [Also in Group XXXIII] In the production of propeller blades or vanes, fuselages or car bodies, cords in the form of a parcel of separate fibres, e.g. glass, synthetic or natural fibres, uniformly impregnated with a polymerisable and still plastic synthetic resin, e.g. epoxy or unsaturated polyester resin are laid side-by-side on the surface of a mould 21, Fig. 2. The cords, as they are laid, are compressed, e.g. by a spatula or by tongs 32, Fig. 3, to a substantially rectangular cross-section which varies in shape along each cord and from cord to cord to give the requisite wall thickness at each point. Lines 40, Fig. 2, may be provided on the mould surface to indicate the breadth to which the cord has to be flattened. A glass fibre tissue 5, Fig. 8, embedded in a similar synthetic resin' may be laid on the mould before the cords 3 are applied and a second resin-impregnated glass fibre tissue 5<SP>1</SP> may be laid on top of the completed layer of cords. The mould is cooled while the cords are being laid and is later heated to cure the resin. Adjacent cords may be formed in pairs from a single cord so that a loop or connecting eye is formed at one end of the final article. A propeller blade may comprise two such shells made in complementary moulds, each shell being filled with a foam substance and the two shells bonded together by means of a layer of resin-impregnated foam substance in the middle and resin-impregnated cord around the edge, in a flattened, compressed condition. The attachment end of the vane may be cylindrical to conform with the cylindrical sleeve 15, Fig. 7, of an attachment fitting having a flange 14 with holes drilled at 19. A polymerisable synthetic resin adhesive is employed between the shell ends 17 and the sleeve 15, a bandage of cords 18 of synthetic resin-impregnated fibre is applied, and polymerisation of the resins is effected. The mould which is supported on a rigid frame consists of a foundation layer 23, Fig. 8, of perforated sheet metal provided with a layer 24 of artificial stone or wood cement. Over this are laid grid shaped or strip shaped electric resistance heaters 25 which are covered by a layer 26 of artificial stone or wood cement to which the desired form is imparted by smoothing with a spatula and by grinding. The rear side of the mould is provided with chambers to receive a cooling medium.