baber/WOPTO huggingface dataset:
Patent GB-437520-A (GB)
Title: Improvements in or relating to voltage multiplying and rectifying arrangements
IPC: H02M7/10
Filed: 1934-04-26
Abstract: 437,520. Electric rectifying systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Travis, C.) April 26, 1934, No. 12671. Convention date, April 26, 1933. [Class 38 (ii)] A voltage multiplying rectifier circuit arrangement in which an odd number of rectifiers is associated with the load is characterized in that the rectifiers, the source of A.C. voltage and the load are connected in series, and the rectifiers are successively energized in opposite phase by connection through a single condenser to opposite terminals of the said source, both terminals of the load being effectively connected as regards alternating potential to the same terminal of said source. The A.C. source with its instantaneous polarities indicated by a b, the rectifiers R1-R7, and the load 7 are connected in series. Each rectifier R1-R7 is connected through one of the condensers C1-C7 to each pole of the source. The instantaneous polarity of each rectifier is indicated by a, b and the load 7 is placed at the position in which it is connected through the two condensers C1, C5 to the same pole a of the source. The Specification also describes the known form of voltage multiplying circuit in which a number of rectifiers are connected in a series chain, condensers being connected between the cathode of each rectifier and the appropriate pole of the source. The Specification as open to inspection under Sect. 91 also comprises a voltage doubler arrangement employing two rectifiers and feeding the valves of a radio receiver ; a voltage quadrupler arrangement employing double space path rectifier tubes ; and the general arrangement shown in Fig. 6 (Cancelled) in which an even number of rectifiers R1-R6 is employed, the load being situated at any position in the chain of rectifiers R1- R6 although the D.C. path does not include the source. Each pole of the source a b is connected through one of the condensers C1-C7 to the rectifiers. This subject-matter does not appear in the Specification as accepted.
Patent GB-401337-A (GB)
Title: Improvements relating to kerbs for roads and the like
IPC: E01F9/053
Filed: 1932-05-03
Abstract: 401,337. Road kerbs. LUMB, C. F., 4, Cleveland Square, St. James's. London. May 3, 1932, No. 12733. [Classes 87 (i) and 107.] The side K, Fig. 3, or upper bevelled edge C, Fig. 1, of a kerbstone for roads or the like, is provided with inset portions A, H, L of white concrete, to render the kerbing visible to the drivers of vehicles. The kerbstone may be formed by precasting a strip of white concrete and placing it in the mould, or by casting the white and ordinary concrete in separate layers. The strips may be in one or more continuous or interrupted rows so arranged as to indicate approaching road conditions. Luminous reflectors J of glass, metal, or other material, may be arranged between the strips. The white concrete is obtained by a mixture of white cement with white sand only or white sand and crused white stone. Its reflecting powers may be increased by casting it with a micaceous or similar reflecting material, such as crushed glass. Specification 23947 /03, [Class 87, Moulding &c.], is referred to.
Patent GB-421317-A (GB)
Title: Improvements in or relating to spouts for tea-pots and the like
IPC: A47J36/14
Filed: 1934-04-27
Abstract: 421,317. Teapot &c. spouts. SPEED, E., 79, Fernhill Road, Cowley, and SWALLOW, W., 31, Forest Road, Headington, both in Oxford. April 27, 1934, No. 12772. [Class 66] A teapot &c. spout is formed with an inclined channel 13 intended to collect drip and return it to the spout at the points 14 where the channel ends. According to the Provisional Specification, the invention can be applied to spouted vessels for pouring finely ground powders. Specifications 214,073 and 243,328, [both in Class 66], are referred to.
Patent GB-1169766-A (GB)
Title: Lifting Apparatuses
IPC: B66C1/20
Filed: 1967-03-17
Abstract: 1,169,766. Handling motor vehicles. WESSEL & WEIKMANS N.V., and C. W. A. DUSSELDORP. 17 March, 1967 [18 March, 1966; 13 March, 1967], No. 12786/67. Heading B8H. A vehicle-engaging frame 49, Fig. 1, is raised by a trolley 50. The whole device is wheeled or driven up to a vehicle which is engaged by ramoperated pivoted side-frames 66. The frame 49 may be tilted by wheels 143 on links 145 which are pivoted downwards by rams 147. Cables 149, 150 and a ram 152 raise the frame 49 on guides on the trolley 50. Base members 67 of the side frames 66 have wheel engaging studs 82-85, Fig. 10. Studs 82 are fixed and the rest are adjustable, being moved along grooves 86 by rams 106, 116, 117, respectively, Figs. 11, 15. These studs are slidable in movable blocks 87, 110, 111 and are automatically forced outwards into engagement with the vehicle wheels by the rams and their associated linkages.
Patent GB-400984-A (GB)
Title: Improvements in or relating to a method of producing sodium aluminate solutions
IPC: C01F7/0633
Filed: 1932-05-04
Abstract: In the production of sodium aluminate solutions from oxides or hydrates of aluminium containing silica by extraction with preferably concentrated caustic soda, solutions free from silica are obtained by adding the requisite amount of the dry slaked hydrates of barium, strontium, or calcium, or the oxides or hydrates of magnesium or zinc prior to or during extraction, the amount of caustic soda needed being correspondingly less.  The silica is precipitated principally as a calcium silicate.
Patent GB-525528-A (GB)
Title: Improved implement for cleaning the teeth
IPC: A61C15/04
Filed: 1939-05-01
Abstract: 525,528. Teeth - cleaning FRASER, W. May 1, 1939, No. 12951. Convention date, May 28, 1938. [Class 81 (ii)] A dental floss holder comprises a hollow handle 8 and two prongs 12, 13 offset from the plane of the handle and having at their ends a peripheral groove 14 and a diametrical groove 15 in which the floss is secured. One prong has also a passage 18 communicating with the interior of the handle which contains a supply of floss. Specification 247,880, [Class 131], is referred to.
Patent GB-1253421-A (GB)
Title: Improvements relating to rectifying circuits employing semi-conductor components
IPC: H02M7/08
Filed: 1969-03-12
Abstract: 1,253,421. Static convertors. BROWN BOVERI & CO. Ltd. 12 March, 1969 [14 March, 1968], No. 12960/69. Heading H2F. In a static convertor comprising a plurality of silicon diodes connected in parallel to carry a load current in their forward direction, which current because of circuit inductance is unequally distributed amongst them, the diodes having different inverse voltage avalanche breakdown characteristics, and wherein circuit inductance causes the diode carrying the higher or highest mean load to turn off first during the commutation period, it is arranged that the diode with the highest avalanche voltage is placed in the position in the circuit (as determined by experiment) which carries the lowest forward current. Since this diode will be the last to commutate off it will experience the full surge current and will be able to withstand it without breakdown. Thereafter the other diode or diodes will be subjected to a diminishing surge current.
Patent GB-585988-A (GB)
Title: Improvements relating to radio-echo systems for measuring rate of approach or receding of moving objects
IPC: G01S13/58
Filed: 1941-10-10
Abstract: 585,988. Radiolocation. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and HOUGHTON, L. W. Oct. 10, 1941, No. 13078. [Class 40 (v)] A system for measuring the relative velocity of a moving object with respect to a stationary or moving transmitter location giving a continuous direct indication, comprises an antenna arranged to transmit waves towards the object and to pick up waves after reflection therefrom, means for separating the beat frequency produced in the aerial circuit between the transmitted and received waves, and means for indicating the beat frequency. An oscillation generator consisting of a valve 1 is caused to oscillate at a frequency determined by a tuned circuit comprising an inductance 5 and condenser 6 connected between the anode 2 and grid 3. High-tension voltage is applied to the anode through an inductance 10, forming the primary of a transformer 9, and a high-frequency choke 12 and a portion of the inductance 5 determined by a variable tap. A condenser 13 is connected between the junction of the inductance 10 and choke 12 and earth, the cathode 4 also being connected to earth. The output from the oscillator circuit 6, 5 is fed to an antenna 14 by means of a coupling coil 15 inductively coupled to the inductance. The antenna 14 also picks up the reflected waves and feeds them to the inductance 5, where they are heterodyned with the generated oscillations so as to give a resultant beat note whose frequency depends on the relative velocity between the transmitter and the reflecting object. This beat note is obtained in the secondary winding 11 of the transformer 9. Voltage of beat note frequency is then fed through an amplifier and amplitude limiter to a frequency discriminating circuit whose output current or voltage is proportional to the input frequency. The resulting output is applied to a meter 17 calibrated in terms of " rate of approach." Indication as to whether the object is approaching or receding may be obtained by using a frequency balanced circuit fed directly or through a coupling connected across the points XX. Alternatively, a pair of filters whose frequency - voltage characteristics slope in opposite directions and cross each other at the transmitted frequency may be fed in parallel from the tuned circuit 5, 6. The outputs from. the filters may be fed in opposite directions through resistances in series having a voltmeter connected across their ends. This indicates whether the received frequency is above or below the transmitted frequency and hence whether the object is approaching or receding.
Patent GB-165777-A (GB)
Title: Shock absorbing means for the forks of bicycles, motorcycles and like vehicles
IPC: B62K25/16
Filed: 1921-05-09
Abstract: 165,777. Luste, A. June 29, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Spring devices.-A shock-absorbing device for the front forks of bicycles, motor-cycles, &c., necessitating no modification of existing rigid forks 8, comprises a liquid-containing cylinder 1 connected by auxiliary forks 3 to the wheel axle which is mounted in levers 6 pivoted to the ends of the forks 8, a fixed piston 9 and hollow stem 13 being arranged within the cylinder and perforated as shown at 10, 37 to allow for the slow passage of liquid from one side of the piston to the other. The holes 10 are covered by a washer 11 which is held in place by a transverse pin 12 passed through the tubular stem. A spring 21 is fitted between the piston and the lower end of the cylinder for restoring the parts to normal position after the wheel has received a shock. Two rods 29 connect the upper end of the stem 13 to the lower extremities of the rigid fork, the cylinder being held in position by a double collar 34 and a roller 39 rolling upon the frame member 36.
Patent GB-131294-A (GB)
IPC: F21L4/00
Abstract: 131,294. Nurnberger Metall & Lackierwaarenfabrik vorm. Geb. Bing Akt.- Ges. May 1, 1915, [Convention date]. Flash signals.-In an electric battery lamp which can be used for signalling, the bulb 8 is supported on an arm 9 within a reflector 7 which, with the portion 5, forms a cover for the battery container 2 when the lamp is not in use, as shown in Fig. 3. The arm 9 consists of two metal bars insulated from one another and connected to the lamp terminals. One bar is pivoted to a metal slide 10 which is connected through the casing to one terminal of the battery. The other bar of the arm 9 is insulated from the slide 10 and terminates in a projection 11 which is caused by a spring to engage a contact 12 connected by a wire 14 to the other terminal of the battery. The slide 10 engages in guides on the portion 5 of the cover, and can be removed if desired and placed in similar guides on the lid 4 of the battery container. When the cover and reflector 7 are closed down upon the battery, as shown in Fig. 3, the arm 9 bears upon an insulating part 16 of the lid 4 and breaks the contact between the projection 11 and contact 12. The lamp is used for signalling by pressing the arm 9 intermittingly and thus breaking the contact between the parts 11, 12.
Patent GB-131890-A (GB)
IPC: D03C3/40
Abstract: 131,890. O'Brien, J. O., (Representative of Spannagel, C.), and Frost, E. Nov. 19, 1914, [Convention date]. Healds and leashes; leno motions. - The freely-hanging harness-cords a, Fig. 1, in jacquard and other shedding- motions are suspended on shafts .c, Figs. 1 and 4, and are correctly spaced apart by means of guide-rails d secured to the shafts c and provided with holes d<1>, which may be furnished with slots. Perforated bars a hung upon the harness weights b space the harness cords at their lower ends. In looms arranged for cross binding, as shown, the twist cords l, Figs. 1 and 5, also are spaced by bars k provided with holes k<1>.
Patent GB-132380-A (GB)
IPC: F23J1/00
Abstract: 132,380. Preston, W., Russell, F. V., and Tiddeman, E. S. Oct. 10, 1918. Spark-arresters.-To avoid the ejection of live sparks from locomotives in which the ashes are raised from the bottom of the smoke-box by means of a perforated steam-pipe or the like ejector device, the steam supplied is automatically controlled by a valve connected to the valve-gear of the engine in such a way that it is cut off when the engine is running at or near full gear. In the arrangement shown, the steam supply to the periorated pipe is controlled by a rotary valve, Fig. 4, consisting of a disk a having two ports e, j and bearing on a seating f. The inlet port k in this seating is of segmental form, as shown in Fig. 5, the outlet port g being of smaller segmental form. The valve spindle m carries an arm o connected by a link n to an arm p on the reversing shaft r of the link mechanism, the arrangement being such that, whilst the port k remains always open, the port g is open only in mid-gear positions 1 and 4, Fig. 5, and is gradually closed as the link is moved to full-gear positions 1 and 6. A hand-controlled cock t is placed in the steamsupply pipe s, which is connected to the steam elbow v or to the saturated-steam side of the superheater, so that steam is supplied only when the regulator is open. Any ashes falling into the perforated pipe are blown out through the upstanding end y, having a screw cap x.
Patent GB-1423966-A (GB)
Title: Pneumatic shuttle-conveying systems
IPC: B65G51/24
Filed: 1974-03-26
Abstract: 1423966 Pneumatic shuttle conveyer system SIEMENS AG 26 March 1974 [10 April 1973] 13241/74 Heading B8A A pneumatic shuttle conveyer system has a plurality of travel tube strings operating in turn-round fashion and connected to a common central distribution unit, storage tube strings being provided connected to the travel tube strings by controllable branching devices. In the figure, central distribution unit Z is connected to each of a plurality of travel tube strings R 1  ... R n , each of which is provided with a storage tube S 11  ... S nm  corresponding to each of the other tube strings. Separating sliders T 11  ... T n2  seal the storage tubes from the rest of the system. The storage of shuttles by this system does not involve holding up shuttles with different destinations.
Patent GB-132990-A (GB)
IPC: F16K3/30
Abstract: 132,990. Kilburn, R., and Hopkinson & Co., J. April 23, 1919. Sliding valves; actuating.-In a stop valve of the parallel slide type having a hollow spindle, as D, operating a nut working a non-rotary screwed stem, as C, a stop in the form of a collar K, is arranged in the two-part spindle to abut on the nut G to limit The closing movement of the valve without stressing the valve casing. The nut G is made in two sections with a collar J at the middle of its length, and is held to the screwed spindle and rotated thereon by the boxlike end F of the hollow spindle D.
Patent GB-1430033-A (GB)
Title: Tyre ply stock edge alignment
IPC: B29D30/44
Filed: 1974-03-26
Abstract: 1430033 Guiding conveyed articles GOODYEAR TIRE & RUBBER CO 26 March 1974 [18 April 1973] 13305/74 Heading B8A Pieces P of tyre-ply stock carried by a belt 20, which is vibrated during its movement, are moved laterally of the belt to abut a guide 40 extending along the belt to align the pieces P. The pieces may be moved by magnets 50 which attract the wire-reinforcement of the pieces. The belt is vibrated by a roller 60 carrying beaters 62.
Patent GB-582062-A (GB)
Title: Improvements in syphonic flushing apparatus
IPC: E03D1/08
Filed: 1944-07-12
Abstract: 582,062. Siphonic flushing apparatus. GLANVILLE, E. T. July 12, 1944, No. 13306. [Class 26] In a flushing apparatus comprising a discharge pipe 2 within a cistern 1, a closed-top shell 8 enclosing said pipe 2, and valve means liftable within the annular space 10 -by exteriorlyoperable means to start siphonic flow, the valve means consists of a sleeve 11, having a flange 12, supporting on its periphery a loose valve ring 14. The ring 14 floats upward against arresting fins 13 when the sleeve is elevated by depressing the arm 16 of a linkage attached to the floor of the cistern, whereby the water flows through ports 9 into the pipe 2, the flow ceasing when the lower end of the air-vent tube 18 is exposed. In a modification, the sleeve 11 is elevated by the limbs of a pivoted lever, a heel portion on one of the limbs contacting the base to limit the ascent.
Patent GB-332919-A (GB)
Title: Improvements in arrangements for the automatic sampling, measuring or delivery of liquids
IPC: G01N1/10
Filed: 1929-04-30
Abstract: 332,919. Fairrie & Co., Ltd., and Fairrie, G. April 30, 1929. Liquids, sampling.-Liquid delivered by the funnel 2 to the space between a concave shield 2<a> and rotating drum or disc 4 is carried round and removed by a scraper 6; it passes into a hopper 8 and receptacles 11 or into a stream of another liquid. The hopper 8 may be pivoted, and by the engagement of projections on this and subsidiary hoppers 10 may be caused to tilt gradually as the hoppers 10 and receptacles 11 travel forward. As the projections clear each other the hopper 8 returns suddenly for delivery into the succeeding receptacle. The scraper may be mounted on a threaded spindle so that it may act on the whole or part of the drum surface; it may be in duplicate, and may be supplemented by an additional scraper for avoiding contamination of the next sample. A float may be fitted so that if the supply of liquid falls below a predetermined level, an alarm is sounded or a relay operated to stop the driving motor.
Patent GB-685074-A (GB)
Title: Improvements in and relating to electric cables
IPC: H01B13/32
Filed: 1950-05-30
Abstract: 685,074. Coating electric conductors with synthetic resin. BRITISH THOMSON-HOUSTON CO., Ltd. May 30, 1950 [June 1, 1949], No. 13500/50. Class 87 (ii). [Also in Group XXXVI] To render the spaces watertight between the individual wire strands of an electric cable a method of longitudinally sealing such a cable comprises arranging at least one layer of a plastic material between an inner wire or group of wires and an outer group of wires, this assembly being then compressed under heat to force the plastic material into the interstices between the stranded wires. Two embodiments are described. In one, every strand is coated with a layer of resin e.g. by extrusion, before the heating and pressing, as shown in Fig. 1. In the other, the centre strand only is coated and a layer of resin is formed round the outside of all the strands, as in Fig. 3, and this communal covering layer may be wound helicoidally or it may be applied longitudinally in the same way as insulating rubber is applied by a machine using sheaves. The whole is heated and passed between sheaves to crush the resin layer and cause the resin to fill the interstices. A suitable resin comprises 45 per cent polyvinyl chloride with 55 per cent plasticizing and stabilising materials. Highfrequency dielectric heating is advisable, designed to raise the temperature of the cable to about 160‹ C. as it moves through the sheaves at about three metres per minute.
Patent GB-623859-A (GB)
Title: Improvements in the mounting of the impression cylinders of hand-operated printing machines
IPC: B41F3/46
Filed: 1947-05-20
Abstract: 623,859. Printing-machines. COTTING. HAM, J. May 20, 1947, No. 13534. [Class 100 (ii)] The impression cylinder of a hand-operated reciprocating bed printing press is carried by a pair of rockable arms with either or each of which may engage a cam lever adapted to be rocked in alternate directions by the reciprocating bed so that on approaching the limit of movement of the bed in one or the other direction the lever or levers are rocked, to allow the cylinder to sink by gravity into printing position or to turn the supporting arms and hold them with the impression cylinder elevated into inoperative position. The impression cylinder 23, Figs. 1 and 5, is supported in two rockable arms 21, 22 adjustably pivoted by screws 20 in vertical slots in side plates 1, 2 of the machine frame. Cam levers 24 pivoted to the frame are rockable to engage the arms 21, 22 and raise the cylinder out of contact with the forme or to release the arms 21, 22 and allow the cylinder to sink by gravity into printing position. The rocking of the levers 24 is effected just prior to the end of each stroke of the bed, respectively by studs 25 and 26 on the bed, engaging respectively the levers 24 and the bent ends of rods 27 secured thereto. A camming element 30 is mounted on a rod 28 rotatable by a handle 29 and is rockable so as to bear against the cylinder, or the arms 21, 22, and raise it out of operative position, retaining the arms 21, 22 out of engagement with the levers 24, when the bed can be freely reciprocated, as for ink spreading. The weight of the cylinder holds the element 30 in position until it is manually retracted. The levers 24 in normal position prevent the cylinder-carrying arms 21, 22 being forced past the printing position. Specifications 623,860 and 623,861 are referred to.