baber/WOPTO huggingface dataset:
Patent GB-616532-A (GB)
Title: Improvements in or relating to electrical contact brushes
IPC: H01R43/12
Filed: 1945-06-13
Abstract: Brushes are made of graphite with or without a proportion of metal and including a reagent which on heating liberates a gas or vapour and leaves a hygroscopic residue, the mixture being consolidated into a block and then heated.  As an example, a mixture of carbon and copper with a small proportion of barium nitrate is pressed into a block and heated at about 1500 DEG  F. to convert the nitrate to hygroscopic barium oxide.  The escaping nitrogen increases the porosity of the block.  In place of the nitrate, calcium sulphate dihydrate may be used and converted by heating to the anhydrous sulphate.  In the case of brushes on aircraft, water vapour absorbed at low altitudes improves the performance of the brush when released at high altitudes.
Patent GB-116440-A (GB)
Title: Improvements in Rotary Pumps.
IPC: F04B1/113
Filed: 1917-10-17
Abstract: 116,440. New Rotoplunge Pump Co., Smith, C. Lakin-, and Beckwith, N. G. Oct. 17, 1917. Eccentric-actuated pumps; revolving-cylinder pumps.-In a rotary pump of the kind described in Specification 23948/13, wherein pistons, connected in pairs which operate in unison, rotate within a casing divided into suction and delivery chambers, the pairs of connected pistons 9 are made similar and interchangeable and are actuated by plane faces on an eccentrically mounted block, the corresponding pairs of cylinders are arranged in different planes to enable the pairs of pistons to be interlaced. The faced block 16 for actuating the pistons is mounted on an eccentric pin 13 on the end cover 10 of the casing. A slight clearance is provided between the rotor and casing so that a liquid seal is formed when the pump is working. In another form, means are provided to ensure constant delivery in one direction when the direction of rotation is reversed, and means comprising a pin on a revoluble plate carrying the eccentric pin, and a groove in the casing provided with two stops to engage the pin at the end of its travel in the groove. A pointer may be carried by the revoluble plate to indicate reversal of the eccentric. Lubricating grooves may be provided. Several rotors may be arranged on one eccentric pin supported at both ends, and the delivery of one rotor connected to the suction of the next.
Patent GB-694941-A (GB)
Title: Improvements in or relating to printing and analogous machines
IPC: B41F27/10
Filed: 1948-06-04
Abstract: In coating apparatus a liquid is applied to a surface by means of a cylinder fed <PICT:0694941/III/1> by a duct roller carried by a trough movable bodily therewith by manually-operated means toward and away from the cylinder in an arcuate path such as to maintain a toothed gear drive for the duct roller in correct mesh.  As shown the mounting of a liquid trough 1 with its partially immersed roller 4 includes pivots 18, 27 on two pairs of interlinked bell-cranks on transverse spindles 20, 22, the lines 18-20 and 27-22 being equal and parallel to the line a1-a2 between the shaft of the roller 4 and the fixed shaft of a spurdriven gear 7, whereby the driven gear 6 on the roller 4 is maintained in correct mesh with the gear 7 during movement of the trough 1 and roller 4 toward or away from the cylinder 3 by rotation of the bell-cranks by a hand knob 26 and worm-gearing 25, 24.  The bearings of the worm 25 are fixed to a lever 28 loose on the spindle 20 and held stationary by a spring-loaded pin 29 engaging a hole in the frame; the pin is manually retractable for quick tripping of the roller 4 from the cylinder 3.  The trough is mounted on wheels 11 for withdrawal along rails 12, stops 13, 14 and latches 15 serving to secure it in operative position.  Gears 6, 7 may be provided at both ends of the roller 4.
Patent GB-590334-A (GB)
Title: Means for reproducing motion electrically at a distance
IPC: G08C19/40
Filed: 1944-08-10
Abstract: 590,334. Reciprocating machines. BENDIX AVIATION CORPORATION. Aug. 10, 1944, No. 15288. Convention date, June 21 1943. [Class 35] [Also in Group XXXVIII] In a remote control system the moving member of the transmitter or the receiver, or of both, is a linearly moving magnet or assembly of magnets. In the form shown, the receiver has a winding on a core 161 co-operating with magnets 167-170 moving linearly when transmitter magnet 156 is moved by diaphragm 157 to give an indication of temperature, pressure or liquid level. The ends of the windings of both transmitter and receiver are connected to a source of alternating or pulsating current 177 and the two intermediate tappings are connected directly together. In a modification, the transmitter is also similarly constructed with linearly movable magnets while in another modification the transmitter is of form and the receiver is similar to the transmitter of Fig. 4. The magnets may move in a copper sleeve and alternate magnets may be omitted provided the spacing remains the same. Specifications 539,204 and 565,277, [both in Group XXXVIII], are referred to.
Patent GB-668646-A (GB)
Title: Hair curler
IPC: A45D2/12
Filed: 1949-06-08
Abstract: 668,646. Hair-curling appliances. TATA, D. P., and KING, E. E. June 8, 1949. No. 15313/49. Class 131. A hair curler comprises a body portion having one or more hair-receiving, spiral, grooves in its surface and provided with a pivoted hair-retaining arm which is latchable in its closed position. As shown, the curler comprises a body 10 with a hair receiving slot 12, scalp-contacting feet 14, superficial spiral grooves 18 and 22 to receive the wound tress and an axial pin 24, on which a hair retaining arm 38 and a securing portion 26 are mounted. After assembly, the free end of the axial pin is peened over at 46 to retain the parts in position, the pin 34 which joins the legs of a bifurcated portion 36 of the arm 38, entering a slot 30 in the portion 26. The hairretaining arm is swingable from an open position to a closed position, in which it is latched by projecting lips 44 on the member 26, and may be rotated axially of the body to clamp the hair in any desired rotative position of the body.
Patent GB-600064-A (GB)
Title: Improvements relating to the treatment of saline solutions
IPC: B01J47/019
Filed: 1944-08-11
Abstract: A method of reducing the chloride content in water containing dissolved chlorides consists in bringing the water into contact with a cation - exchange material and simultaneously treating the water with at least one oxide, hydroxide, carbonate or basic carbonate of bismuth, lead or copper to produce insoluble or substantially insoluble basic chlorides.  The cation - exchange material may be a hydrogen-exchange material but is preferably material with exchangeable bismuth, lead or copper ions.  The water may be treated in addition with silver oxide for removal of magnesium or with barium oxide or hydroxide for reduction of sulphate content.  As an example, sulphonated coal treated with sodium metabisulphite as described in Specification 559,941 and also treated with excess hydrochloric acid, is mixed with powdered lead hydroxide and shaken with sea water for 30 minutes then silver oxide is added and shaking continued for 10 minutes, the result after filtration being purified water.  The lead hydroxide may be replaced by bismuth hydroxide.  As a further example an exchange material prepared from a phenol sulphonic acid containing sodium ions as treated with an aqueous solution of bismuth hydrate in nitric acid so that the sodium ions are partly replaced by bismuth. The remaining sodium ions are replaced by barium by treatment of the solution with barium nitrate solution, and excess barium ions are washed away by distilled water.  The solid material is then dried in air.  The resulting exchange material together with bismuth carbonate is shaken with sea water whereby the chlorides and sulphates of sodium are substantially reduced.  The barium nitrate may be replaced by lead nitrate.  The reagents may be used to treat sea water in a bag as described in Specification 590,217.
Patent GB-714649-A (GB)
Title: An improved device for measuring the unwinding tension from a textile yarn package
Inventor: VINCENT JOHN JOSEPH
IPC: G01L5/04
Filed: 1952-06-19
Abstract: 714,649. Dynamometers. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION. June 17, 1953 [June 19, 1952], No. 15414/52. Class 106 (2) An unwinding tension measuring device for a yarn package comprises a body a of substantial mass for holding the package, means i for drawing off the yarn at a predetermined speed, resilient mounting means b for the body a providing a long natural period of vibration and adapted to counterbalance the yarn tension, and means g, h for indicating the displacement of the body a by the tension in the yarn. A ratchet d and pawl f may be used to' hold the body a in its position of maximum displacement. According to a modification the body a supports a pulley wheel instead of the yarn package, the yarn package being held elsewhere in such a manner that a bite of the yarn from the yarn package may be passed over the pulley to the means i.
Patent GB-880832-A (GB)
Title: Improvements relating to transportable containers
IPC: B61D3/20
Filed: 1958-05-14
Abstract: 880,832. Tanks. BOMBRINI PARODI-DELFINO S.p.A. May 14, 1958 [June 21, 1957], No. 15423/58. Class 69 (1). [Also in Groups XVII and XXXII] A tank or container 1, Fig. 1, e.g. for refrigeration, securable to a rail or road vehicle or used as a stationary ground tank, is formed of three interconnected coaxial parts 2, 3, 4 each made from a synthetic resin plastic casting reinforced with glass fibres and each being provided with wheels 9, Fig. 2, to engage the vehicle frame. Each part is also provided with blocks 10 to receive fastening bolts carried by the frame. Integral reinforcing ribs 6 are cast with the inner surfaces of the longitudinal walls of the parts, to support panels 8 of thermally insulated material and provide a hollow space 30. The inclined end walls 7 of the container are formed as loading hoppers having mouths 13. Compartments 14 between the walls 7 and louvred reinforced resin plastic bulkheads 15 are loaded with ice. If the container is for cooling purposes, the bulkheads 15 are dispensed with and the end walls 7 replaced by vertical walls provided with apertures for air circulation. Moreover the panels 8 are then removed. In the embodiment of Fig. 3, a liquid carrying tank of oval cross-section is formed of three parts 17, 18, 19, each provided with wheels 21 and interconnected by channel sectioned collars 25 engaging flanges 23, 24 of the parts.
Patent GB-896008-A (GB)
Title: A new or improved case for plastic contact lenses
IPC: A45C11/00
Filed: 1960-05-02
Abstract: 896,008. Packaging; boxes. PLASCORP Inc. May 2, 1960 [May 4, 1959], No. 15438/60. Classes 18 and 94(1). [Also in Group XX] A liquid tight ease for contact lenses comprises a hollow body divided into two end sections and a central reservoir section by a pair of spaced, perforated barriers, a removable cap in each of the end sections, each cap having one or more projections from its inner surface and said central section being adapted to receive a liquid therein: the hollow body is made of a plastic material which is softer than methyl-methacrylate. The case shown in Fig. 2 comprises two cylinders 15, 13 interlockable by slots 29, 31 and projections 19, 21 and having pistons 49, 51 movable therein, the recesses 57 in which form the central liquid filled reservoir. The lenses are placed in concave hollows 55 which are connected by channels 59 to the reservoir. Caps 35, 33 are provided to screw on to the cylinders 13, 15. These caps have projections 43 for engaging surfaces 53 on the pistons so as to move them against the action of spring 61 and so that the liquid is forced to rise and submerge the lenses. When the caps are removed the spring 61 urges the pistons away from each other so that the liquid is drawn back into the reservoir and the lenses are easily removed. The surface 55 on the pistons may have slots or holes extending to the reservoir and the two parts 13, 15 may be formed in one piece. It is also desirable to have different markings 37, 39 on each cap to determine which lens should go in which compartment. Projections 45 may be provided in the cap to prevent the lens from sticking thereto.
Patent GB-165645-A (GB)
Title: Improvements in sound receiving or detecting apparatus, particularly for subaqueous use
IPC: G01S1/72
Filed: 1920-06-08
Abstract: 165,645. Walker, W. L. June 8, 1920. Detecting and locating subaqueous sounds. -Apparatus for detecting subaqueous sounds comprises two electrodes of dissimilar metals such as zinc and copper, or steel and Monel metal, immersed in a liquid, for example sea-water, so that a difference of potential due to galvanic action occurs, the electrodes being arranged so that the distance between them is varied by the sound waves. One electrode 13 projects through a stuffing-box 12 in the wall of a sound-box 1, the other electrode 8 being secured to a movement - magnifying lever 6 pivoted to a bracket 7, the other end of the lever being attached to a diaphragm 2 on which the sound-waves impinge, and forming a closure to the box 1. Leads from the electrode pass upwards through a plug 26 and tube 19 to the input terminals of a three-electrcde amplifier 27, the plate circuit of which includes an indicator such as an oscilligraph, a telephone receiver 38, or ammeter 37. The apparatus is used with the sound-box 1 and electrodes submerged, and to equalize the pressure on opposite sides of the diaphragm a downwardly directed tube 24 is provided with its lower end open to the water. By means of a switch 43 the apparatus can be used either with or without a battery 41 included in circuit with the detector. The apparatus is directional, giving maximum response with the diaphragm 2 normal to the direction of sound propagation.
Patent GB-586472-A (GB)
Title: Welding fluxes
IPC: B23K35/36
Filed: 1943-09-21
Abstract: A flux containing powder comprising titanium dioxide and suitable for use in welding to form a protective coating upon application to that side of the article opposite the side to which the electrode is applied, is characterised by the fact that in addition to the titanium dioxide in the proportion of 10-20 per cent. by weight of the powder and one or more silicates of sodium, potassium, calcium and barium in the proportion of 40-85 per cent. by weight, it contains boron oxide in the proportion of 1.5-15 per cent. by weight of the powder, the remainder of the flux consisting of methanol as a vehicle for the same.  The flux may also contain borax glass, between 4 and 15 per cent. of the total flux.  It is preferred to keep the content of boron compounds below 18 per cent. of the total powder. Quartz sand and fluorides may also be included in the flux powder and a suitable composition is as follows: boron oxide 8 per cent., calcium silicate 40.5 per cent., calcium fluoride 8 per cent., lithium flouride 1.5 per cent., borax glass 5 per cent., titanium dioxide 12 per cent., and quartz sand 25 per cent.
Patent GB-113927-A (GB)
Title: Improvements in or relating to Projectiles.
Inventor: WADE HAROLD
IPC: F42B12/48
Filed: 1917-10-24
Abstract: 113,927. Wade, H., (Compagnie GÚnÚrale d'ElectricitÚ). Oct. 24, 1917. Projectiles; projectile fuses.-Consists in a message-carrying projectile constituted by a hollow body 1 filled with smoke-producing material 11 adapted to be ignited on discharge of the prejectile, the body having two series of vent-holes 9, 10, and a casing 2 for carrying the message. The smoke-producing charge is for enabling the flight of the projectile and the point of its fall to be observed. The igniting-device comprises an inertia striker 5, normally held by a shear-pin 6, a percussion cap 7, and a wick of tow 8.
Patent GB-1393007-A (GB)
Title: Bottle crate
IPC: B65D1/24
Filed: 1972-04-04
Abstract: 1393007 Crates SARVIS OY 4 April 1972 [7 April 1972] 15495/72 Heading B8P A moulded bottle crate of synthetic resin has apertures 9 in the two opposite longitudinal sides and in the partitions parallel thereto so that when the crates are stacked on their sides, one upon the other, the bottle ends extend partly through the holes and the bottles are inclined at about 8-15 degrees to the horizontal. This prevents the bottles from falling out of the open fronts of the stacked crates. Handholes 5 are provided in the crate sides and the base is of a grid-like form. Compartments are formed of the usual transverse and longitudinal partitions. Ribs strengthen the edges of the apertures 9 and also strengthen the upper and lower edges of the crate. Connectors 12 fix the crates together when stacked one on another or side-by-side.
Patent GB-595031-A (GB)
Title: Improvements in or relating to brake mechanism
IPC: F16D55/224
Filed: 1945-06-19
Abstract: 595,031. Hinges. STEVENS, A. H. (Budd Wheel Co.). June 19, 1945, No. 15540. [Class 65 (ii)] [Also in Group XXXIV] The pivotal connection between a brakeshoe and its operating lever, and between the hydraulic actuator and a lever in the transmission system, are designed to facilitate rapid dismantling. As shown, the shoes each have a backing plate 17 carrying spaced bearings 19, 20, the bearing 19 being a bushed cylindrical bearing whilst the bearing 20 is merely a curved surface on a hardened steel stud 22, the curved surface engaging the head 27 of a pin 26. The pin 26 is a press fit in the boss 25 of the lever 13, the boss and thrust washers 35 being interposed between the bearing 19 and the head 27. The shoe is thus removable, when the retaining- means are removed, by moving it axially relatively to the pin 26. The retaining-means comprise a spring 30 bearing against a washer 32 and a flat-tapered key 28 which bears on the washer to which it is locked by a pin 33 passing through the key and ears 34 on the washer. In a modification, the key has a downward protuberance at its forward end which locks against one side of the washer 32. The ears 34 are omitted and a split pin is passed through a hole in the forward end of the key.
Patent GB-311118-A (GB)
Title: Improvements in flyers for spinning and like frames
IPC: D01H7/48
Filed: 1928-05-29
Abstract: 311,118. Boyd, H. A., and Boyd, Ltd., J. & T. May 29, 1928. No Patent granted (Sealing fee not paid). Spindle apparatus.-The eye of a flyer leg is formed as a double hook by means of two limbs 1<1>, 1<2> one turned to the right and the other to the left, a space being formed between them for threading, whereby the yarn is securely held whether the flyer rotates in one direction or the other or is displaced relatively to the bobbin.
Patent GB-801967-A (GB)
Title: Improvements relating to magnetic amplifiers
IPC: H03F9/04
Filed: 1955-05-31
Abstract: 801,967. Magnetic amplifiers. GENERAL ELECTRIC CO. May 31, 1955 [June 11, 1954], No. 15616/55. Class 40 (a). In a magnetic amplifier with a load winding energized by alternate spaced negative and positive going power pulses, a rectifier in series with the load winding and load is biased so as to permit direct current in a control winding to set the core during the zero voltage spaces between power pulses. The bias may be provided by a battery, a condenser in parallel with an impedance or by a non-linear impedance. Two biased and oppositely poled rectifiers may be connected in parallel and the combination be placed in series with the load winding and load, or as shown in Fig. 10a, two separate load impedances may be employed, one in series with each of the rectifiers. A condenser in parallel with each of these load impedances may provide the bias for the rectifiers in place of the batteries 20, 21. Alternatively again, as shown in Fig. 11b, a, single load impedance 30 energized over oppositely poled rectifiers 18 and 19 and impedances 31, 32, has capacitors 24 and 25 connected across it to provide bias for each rectifier. The alternating pulse power supply may be rectified as shown in Fig. 12, a capacitor across the load 36 providing a bias for the rectifiers of a bridge circuit. The bridge circuit may feed a number of separate amplifiers in parallel. In each embodiment an A.C. cross bias may be provided to give a zero origin for the load versus control current characteristic.
Patent GB-688012-A (GB)
Title: Improvements in or relating to a mounting for milling cutters or similar spirally-grooved tools to be ground
IPC: B24B41/06
Filed: 1951-07-02
Abstract: 688,012. Grinding. HERTLEIN, C. J. July 2, 1951, No. 15625/51. Class 60. A mounting for a tool G to be ground comprises a pair of standards 16, 17 spaced apart for air-cooling, a hollow cylindrical spindle 22 having means for mounting the tool G and passing through aligned openings 20, 21 in the standards so as to be exposed for aircooling between the standards and at its ends, and centering pins 54, 55, 56 extending radially of the spindle to centre it in the openings 20, 21 which are of larger diameter than the spindle to provide annular air-cooling spaces 64. The standards 16, 17 project from a body 12 that can be rocked on a ball-hinge 35 to move the tool G into operative relationship with a cupped grinding wheel D by turning a lever 41, Fig. 2, so that a cam 43 thereon displaces a follower 44 in engagement with a shoulder 38 on the body 12. A spring 48 beneath the head of a bolt 52 secured to a base plate 10 acts on the body 12 to keep it in engagement with the follower 44. The handle is prevented from being withdrawn from the base 10 by a pin 45: A finger 34, Fig. 1, engages the grooves in the tool G so that when the latter is advanced by handpressure applied to a knurled knob 26 on the end of the spindle 22, the tool and spindle rotate and the cutting edge 1 of the tool remains in contact with the edge F of the wheel D. Before retracting the spindle 22, the body is rocked into its inoperative position by the handle 41. A stop-collar 24 is secured adjustably to the spindle 22 for engaging the standard 17. The finger 34 is carried by a bar 30 that is clamped on V-bearings 29 in the end walls of the body 12 by a screw 32. The centering pins 54, 55, 56 have semi-spherical tips of hard metal and are locked in position by screws 62, 63, the screws 62 having pointed ends to engage a series of centre holes provided in the pins 54, 55. In addition to cooling the spindle 22, the current of air passing through the spaces 64 keeps the ends of the pins 54, 55, 56 free from dirt.
Patent GB-937353-A (GB)
Title: Improvements in and relating to copying devices for lathes and like machine tools
Inventor: LEWIN IAN HALE
IPC: B24B17/08
Filed: 1959-05-07
Abstract: 937,353. Copy-turning; flame cutting. NORMALAIR Ltd. May 3, 1960 [May 7, 1959], No. 15658/59. Classes 83 (3) and 83 (4). [Also in Group XXIX] A copying device for a lathe, milling or shaping machine, flame cutter or the like, comprises a stylus 4, Fig. 1, on a rod 6 and urged against a pattern 1 by a spring 8, the rod moving a member 11, carried thereby, between orifices 12, 13, supplied with pressure-liquid through restrictions 14, to produce a pressure difference on the ends of a valve 15 which then moves to supply liquid to one or other side of a piston 21, causing the device-housing 7 to move to or from the work 2. The housing carries the tool &c. 23, and the rod is supported by diaphragms 9, 10. A hand lever 28 and a solenoid valve 29, energized by pressing a button, are actuable to remove the tool from the work. In a modification, member 11 controls a single orifice communicating with one end of valve 15 which is loaded by a spring or pressure-liquid on its other end. Housing 7 may be fixed and piston 21 operates the tool. The pressures on opposite sides of piston 21 may react on areas of valve 15 to provide feed-back. In another arrangement, member 11, Fig. 4, is held by springs 34, 36, against part 35 of valve 15 and an abutment 37 on rod 6, respectively, whereby movements of valve 15 are fed back to member 11. In yet another arrangement, member 11, Fig. 5, is suspended by a leaf-spring 38 from rod 6 and supported between springs 39, 40 in a yoke 41 fixed to valve 15. Specification 928,802 is referred to.