baber/WOPTO huggingface dataset:
Patent GB-161928-A (GB)
Title: Improvements in apparatus for delivering liquid or granular material in predetermined measured quantities
IPC: G01G21/00
Filed: 1920-12-08
Abstract: 161,928. Martin, F. P. April 12, 1920, [Convention date]. Addition to 136,948. Automatic-feed weighers. -The apparatus claimed in the parent Specification for delivering liquid or granular material in predetermined quantities aud embodying a compartmented drum balanced by a counterweight, is now provided on the drum with a series of cams for raising the drum into engagement with the arresting stop after each rotation of the drum. The drum a is divided by partitions a<1> and is supported on a lever d coupled to a lever f bearing a counterweight f<2>. To one side of the drum is secured a ring formed with teeth a<3> and cams s. Projections on an arm c secured to the frame or to the lever f engage the teeth a<3> and the cams s. In operation material flows from a hopper i into the uppermost compartment of the drum until the drum sinks and the uppermost tooth a<3> escapes from the projecting or arresting stop on the arm c. The drum then rotates, discharges its charge and brings the next compartment into the filling position. One of the cams s engages the arm c during the rotation and elevates the drum sufficiently to ensure the engagement of the next tooth a<3> with the arresting stop on the arm c. A pawl p prevents backward rotation. A lever o operates a counter.
Patent GB-983450-A (GB)
Title: Improvements relating to power supply circuit arrangements
Inventor: KING KENNETH GORDON
IPC: H02M5/27
Filed: 1961-09-28
Abstract: 983,450. Inverting. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Sept. 20, 1962 [Sept. 28, 1961], No. 34891/61. Heading H2F. [Also in Division H3] In an alternating current supply circuit including an inverter with two switching elements through which a direct current source is connected, in opposite senses alternately to a load, the on/off ratio of the two switching elements is varied at a frequency lower than the inverter frequency, so that the output voltage is pulse width modulated at the lower frequency (Fig. 2b). The output of the power supply circuit is at this lower frequency, and the high frequency component is filtered out. In Fig. 1, the inverter comprises controlled rectifiers 1 and 2, transformer 7 and commutating capacitor 8. The multivibrator including transistors 21, 22 drives the inverter at a frequency at least several times the desired final output frequency. A sinusoidal bias voltage (of the desired final output frequency) is applied at 29 and this alters the relative conducting periods of the two sides of the multivibrator, and hence of the controlled rectifiers 1, 2. Without the varying bias the inverter output voltage would be as shown in Fig. 2a, but with the varying bias it is as shown in Fig. 2b. The filter networks 11, 12, 13 and 14 allow only the low frequency component to reach the output terminals 10. In another embodiment (Fig. 5) the multivibrator is replaced by a bi-stable circuit which is switched by the error voltage derived by connecting in series opposition a reference voltage 47 and a portion of the output voltage. The inverter frequency is determined by the speed of response of the control system, and the output voltage follows the reference in both magnitude and phase. A three-phase embodiment is described (Fig. 6, not shown). Figs. 3 and 4 of the Provisional Specification are a block diagram of the embodiment of Fig. 5 of the Complete Specification, and a circuit similar to that of Fig. 6.
Patent GB-836172-A (GB)
Title: Improvements in differential re-fraction liquid level gauges
IPC: G01F23/02
Filed: 1957-11-08
Abstract: 836,172. Indicating liquid levels. YARNALL-WARING CO. Nov. 8, 1957 [March 14, 1957], No. 34911/57. Class 123(1) A differential refraction boiler waterlevel guage in which the water and steam columns appear to the observer as strips of contrasting colours and which is viewed from a considerable distance by means of an optical system for example, comprising parallel mirrors, consists of a body 20 provided with a wedge-shaped interior gauge space 21 between front and rear windows 24, 27 which are set at angle of preferably about 20 degrees to each other. Behind the rear window is an illuminator housing 28 mounting sealed spotlights 32 in front of which are mounted side by side red and green filters 34, 35. The light passing through the filters 34, 35 forms green and red bands 41, 46 which are refracted in the water space to be emitted as bands of parallel green rays defined by limits 42, 43 and parallel red rays defined by limits 47, 48, each band being bounded by diverging rays of the same colour. The light passing through the vapour space in the gauge is refracted through a different angle, the distance from the rear window to the filters being chosen so that a band of parallel red rays is emitted vertically above the band of green rays from the water space. The optical angle of pick-up by the optical system referred to above is made sufficiently narrow to receive only the vertically superimposed bands of exclusively parallel green and red rays so that the distant observer sees the water and steam spaces as bright green and red bands of light respectively.
Patent GB-957799-A (GB)
Title: Improvements relating to storage containers or premises, such as bins and warehouses
IPC: B65D88/54
Filed: 1959-10-15
Abstract: 957,799. Unloading storage chambers from below. HIGHTOWN MALTING CO. Ltd. Oct. 17, 1960 [Oct. 15, 1959], No. 34914/59. Addition to 873,641. Heading B8E. Material is directed to conveyers 14 (Fig. 1) at the bottom of a storage bin B by raising  sections 6 of the floor to inclined positions. In  the form shown, two sections 6 are hinged centrally together and are raised by rollers on the ends of bell-cranks 7 turned about their shafts 8 by an hydraulic ram 9, 10. This causes material in the bin to fall on to endless push-plate conveyers 14 which can be protected from the material by hinged plates 12. The hinge between the section 6 is protected by a flap 6a. Several bins B can be arranged as shown in plan in Fig. 2 to deliver to conveyers C1 which in turn deliver to endless belt conveyers C2 discharging through a common outlet D. In the alternative arrangement of Fig. 4 the conveyers C1 between adjacent bins B deliver to a central conveyer C2 delivering to a common outlet D. In small installations the conveyers 14 of Fig. 1 may be driven manually. Screw jacks may replace the rams 9, 10. Bins on two or more superposed floors may discharge directly down shoots to conveyers provided on the bottom floor only.
Patent GB-495917-A (GB)
Title: An improved process of treatment for surfaces of articles consisting wholly or in part of synthetic resin
IPC: B32B38/10
Filed: 1937-12-17
Abstract: 495,917. Compound sheet materials. FISCHER, A. Dec. 17, 1937, No. 34989. [Class 140] [Also in Group XV] Sheets or articles made of or impregnated with synthetic resin and having surfaces suitable for attachment to other articles with the usual adhesives are made by inserting between two synthetic resin surfaces a layer of parchment paper, and after hot-pressing and cooling, tearing apart at the parchment paper layer, which splits in its medial plane. Two sheets of parchment paper are inserted next the tenth and twentieth sheets in a pile of thirty superimposed sheets of paper impregnated with a hardening synthetic resin, the pile is hotpressed, cooled, and split into three plates, one provided on both sides, the others on one side, with a surface fit for glueing.
Patent GB-1170960-A (GB)
Title: Foamed and Foamable Polymeric Materials.
Inventor: STEPHENSON ROBERT JAMES
IPC: C08J9/00
Filed: 1967-08-01
Abstract: 1,170,960. Coated foamable particles. MONSANTO CHEMICALS Ltd. 2 July, 1968 [1 Aug., 1967], No. 35171/67. Heading B2K. [Also in Division C3] Coated particles of a foamable thermoplastic material comprising a polymer of an ethylenically unsaturated monomer are produced by polymerising the monomer in aq. suspension in the presence of a volatile blowing agent and a bromophenyl alkenyl ether as flame-retardant in such quantity that there is incorporated in the particles 0.2-1.5% by wt. of the ether, and coating the particles with a further amount of a bromophenyl alkenyl ether such that the total content of ether in and on the foamable particles is 0.5- 3%. The blowing agent butane, pentane, hexane, cyclopentane or cyclohexane. An adhesive may be used in coating the particles and may be an ester of sorbitan in solution in an alcohol or a volatile liquid as used for the blowing agent. The ether may be pentabromophenyl allyl ether. In the example (1) foamable polystyrene beads were coated with the above ether and then a solution of sorbitan monopalmitate in methylated spirits.
Patent GB-870637-A (GB)
Title: Copy aid
IPC: B41L3/14
Filed: 1959-10-17
Abstract: 870,637. Filing papers; book-keeping appliances. HOPKINS, O. S. Oct. 17, 1959, No. 35204/59. Classes 16 and 146( 1 ). A device 1 for maintaining sheets in register to facilitate the making of an exact carbon copy of an original, consists of a plastic moulding having a base 2 and integral pegs 3. The tips of the pegs are pyramidal in shape. In use, an original sheet, copy sheet, and interleaved carbon sheet are brought into register by hand and pierced with two or three devices 1 to retain the original and copy in exact alignment.
Patent GB-465838-A (GB)
Title: Improvements in or relating to cans or like containers
Filed: 1935-12-19
Abstract: 465,838. Seamed joints. CONTINENTAL CAN CO., Inc. Dec. 19, 1935, No. 35260. Convention date, Aug. 5. [Class 83 (iv)] Slits or slots 5, 8 are formed in the edges of a blank 1 to be formed into a can body with the edges interlocked and seamed, the slits or dots which permit the escape of gases generated during the soldering operation, and the free flow of solder, extending from the free edge of the edge 6 forming the inner hook across both layers of the material of the hook, but extending from the free edge 3 in the outer hook only to the oppsite side of the hook. The slits in one edge are staggered with respect to those in the other. The slits may be disposed at an angle to the edge. Specifications 465,836 and 465,839 are referred to.
Patent GB-1308379-A (GB)
Title: Neutron-sensitive ionisation chambers
IPC: H01J47/12
Filed: 1970-07-21
Abstract: 1308379 Ionization chambers LICENTIA PATENT-VERWALTUNGS GmbH 21 July 1970 [24 July 1970] 35288/70 Heading H1D A neutron-sensitive gas-filled ionization chamber for use in a boiling water nuclear reactor, is formed as a continuation of a coaxial cable. The outer conductor of the cable is stripped off the region A and a tube 5 is buttwelded to the cable sheath 2 at 6. A seal 7, rings of solder 12, and the inner conductor 4 of the chamber are fitted into the tube 5 and over the core 1 and the structure is exhausted, brought to soldering temperature, and filled with gas, after which the outer tube 5 is pinched at the front end and welded. The conductor 4 is coated with uranium applied electrolytically and the spacers 10 of aluminium oxide are applied by cathode sputtering. Apertures may be provided in the spacers 10 and in the aluminium oxide cylinder 11 to equalize gas pressure inside and outside the cylinder 4. The life of the chamber may be extended by including a fertile material or a poison. The seal may comprise a nickel tube 7 on which a layer 8 of aluminium oxide and a nickel layer 9 are deposited by cathode sputtering. Alternatively it may comprise a tube of aluminium oxide coated internally and externally with metal.
Patent GB-1436240-A (GB)
Title: Magnetic recording and/or reproducing apparatus
IPC: H02P29/00
Filed: 1973-07-25
Abstract: 1436240 Automatic control of speed SONY CORP 25 July 1973 [27 July 1972] 35385/73 Heading G3R A helical scan video tape recorder has a first motor driving a rotary head assembly and a capstan and a second motor driving respective take up reels during recording and arranged additionally to drive the capstan during playback with the control of speed transferred to the second motor during playback. In the system shown in Fig. 1, the first motor 16 drives rotary heads 2a, 2b and capstan 7 through a resilient drive band 20. The second motor 22 drives during recording or fast winding the respective take up reels 12a, 12b and during playback in addition the capstan through pulley 29 bearing on flywheel 8. The tape is helically guided around guides 1, 5 to co-operate with  heads 2 and also passes adjacent control head 15 and erase head 14. An electromagnetically operated pinch roller 10 controls the drive of tape 9 by capstan 7. The speed of the rotary heads is dictated by pulse generator 6. In the control system shown in Fig. 4 a video sync. pulse signal is derived and passed through divider 102 to be recorded on the tape by control head 15 and to be compared in phase comparator 105 with the output of pulse generator 6. The resulting error signal controls the D.C. motor 16 which drives the rotating heads. The motor 22 is connected in a constant speed feedback control loop including generator 113 and control circuit 110. When playback is selected the switch contacts 104, 106, 108, 117 and 111 are changed over so that motor 16 is now connected with its generator 16f and control circuit 110 to run at constant speed. Motor 22 is now connected to the output of phase comparator 105 which compares the pulses replayed from the tape through control head 15 with the pulses derived from generator 6 so that its speed can be controlled to ensure that the helical scan is correctly aligned. In one alternative construction of the control system the motor 16 may be switched from the video signal to a standard oscillator for playback and the motor 22 controlled by comparing the replayed pulses from head 15 with the output of the standard oscillator, Fig. 3 (not shown). In a further modification, Fig. 5 (not shown) both motors 16 and 22 are permanently connected in feedback control loops with their respective generators and the error signal applied to the first or second loop is derived by sampling a saw-tooth waveform triggered by the output of the video signal or head 15 by the output of generator 6.
Patent GB-1448204-A (GB)
Title: Apparatus for extracting energy from wave movement of the sea
IPC: F03B13/20
Filed: 1972-07-28
Abstract: 1448204 Utilizing wave energy WAVE POWER Ltd 17 July 1973 [28 July 1972]  35523/72 Heading F1S Apparatus for extracting energy from the wave movement of the sea comprises two or more buoyant members 11 which are hinged one to another, the members together defining a substantially continuous lower surface, and means connected between each two buoyant members for converting relative movement of the members into useful energy. As shown, the means connected between each two buoyant members comprises a hydraulic or pneumatic device 12 which transmits pressure pulses to means such as a reservoir (not shown). The apparatus can be positioned off shore and can be used to pump water to a reservoir which can be used for powering a shore based hydro-electric installation.
Patent GB-425960-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/12
Filed: 1934-12-11
Abstract: 425,960. Vacuum cleaners. HOOVER, Ltd., Perivale, Greenford, Middlesex.- (Assignees of Kitto, W. H. ; 1416, 11th Street, Canton, Ohio, U.S.A.) Dec. 11, 1934, Nos. 35563 and 35564. Convention dates, Dec. 20, 1933 and Aug. 31, 1934. [Class 8 (i)] A dirt trap for demonstration purposes for temporarily connecting to form part of a suction hose of a vacuum cleaner comprises a conduit member in two halves A and B, hinged at D and with a catch E, between which a diaphragm C of filtering material is clamped. The two halves A and B are adapted to receive the suction hose or tool and a window F may be provided for observing the state of the filter when the cleaner is in operation.
Patent GB-638147-A (GB)
Title: Apparatus for geophysical prospecting
IPC: G01R33/04
Filed: 1946-12-02
Abstract: 638,147. Magnetic measurements. GULF RESEARCH & DEVELOPMENT CO. Dec. 2, 1946, Nos. 35604 and 35605. Convention dates, Dec. 8, 1945. [Class 37] Apparatus for magnetometric surveying comprises a directionally stabilized magnetometer device 112, Fig. 1, which is mounted in a trailer 111. The measured magnetic intensity is recorded on a strip recorder 113 whose chart is moved proportionally to the distance covered, by a flexible cable connected to the trailer wheels in the manner of an odometer. A second recorder 115 is responsive to time from clock 117 and elevation from barometer 116. The recorder charts may alternatively be clock driven, magnetic intensity and distance covered being recorded thereon as functions of time. A single combined chart may be used. The magnetometer 112 associated with its directional stabilizing device 120 is of the kind described in Specifications 642,649 and 642,650. In operation the apparatus is traversed along a line 101 of the earth's surface, and the magnetic anomaly associated for example with a point at which magnetic rock 107 comes closest to the surface is recorded at 123 on chart 121, Fig. 2. The apparatus may be carried by boat or pack, or may be mounted in an aircraft flying according to predetermined survey plans Figs. 3, 4 (not shown), the recording chart being clock driven and the path of the aircraft with time being recorded on a map. The apparatus readings are applicable to the detection of buried metals, valuable minerals, mines and submarines.
Patent GB-303005-A (GB)
Title: A new or improved safety device for burners of mazut under pressure
IPC: F23D11/24
Filed: 1928-12-04
Abstract: 303,005. Soc. Anon. des Chantiers et Ateliers de St.-Nazaire, Penh÷et. Dec. 26, 1927, [Convention date]. Void [Published under Sect. 91 of the 'Acts]. Burners, mounting.-A prolongation 0 on the plug of the cock R controlling the supply of mazut to a burner prevents the screw V securing the burner to its support S from being operated to release the burner except when the plug is in the closed position.
Patent GB-880604-A (GB)
Title: Side loaders
IPC: B66F9/10
Filed: 1958-11-06
Abstract: 880,604. Side operating lift trucks. BOWMAN-SHAW, G. N. Nov. 6, 1959 [Nov. 6, 1958], No. 35731/58. Class 78 (3). The lifting mast 7 of a side-loading fork lift truck is traversed across the truck chassis by a chain 4 which is anchored to the mast at 6, and passes over a roller 5, and a sprocket 2 secured to a shaft 1 which is rotatable by a sprocket 3 engaging a bight in a chain 11. This chain is anchored to the chassis at 12 and passes around a tensioning roller 14 and rollers 13, 15 connected by a tie 16 to the piston-rod 17 of an hydraulic ram 18. The mast is provided with rollers 9 which are guided in tracks 10 secured to the chassis.
Patent GB-487946-A (GB)
Title: An improved method of and means for distributing washing liquid in tower scrubbers
IPC: B01D53/18
Filed: 1936-12-30
Abstract: 487,946. Washing gases. GAS LIGHT & COKE CO., and SILVER. L. Dec. 30, 1936, No. 35735. [Class 55 (ii)] In tower scrubbers in which gas passes up in counter-current to liquid comprising sets of troughs 14, 20 for liquid arranged one above another so that adjacent sets extend transversely one to another and the lowest set extends transversely to vertical packing laths 24. each trough having outlets delivering liquid in streams to the trough beneath, the outlets 16, 22 are arranged in side walls of the troughs and drip sills 18, 23 at or near the bottoms of the side walls of each trough are spaced to correspond with the spacing of the lower transverse troughs 20 ; the sills 23 on the lowermost troughs 20 correspond with the laths 24. The outlets are formed by notches 22 or by holes 16 at the same level in the side walls, and the sills 18, 23 are formed by continuing .said sides downwards and shaping them to form projections 18, one below each hole 16 and immediately above each of the lower troughs 20. Notches 22, 23 are formed in the sides of the lowest troughs 20. The troughs of the top set are supplied with liquid each from separate pipes 12 extending into an upper tank 10 supplied by a float -controlled valve, the pipes having weir slots 13 all at the same level. The troughs may have transverse partitions 19. A vent pipe 9 maintains equal pressure in the tank 10 and in the tower.
Patent GB-1318999-A (GB)
Title: Production of 4-ureideohexahydropyrimidin-2-one
IPC: C05C9/00
Filed: 1970-07-23
Abstract: 1318999 4-Ureidohexahydropyrimidin-2-one DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 23 July 1970 [6 Aug 1969] 35756/70 Heading C2C 4 - Ureidohexahydropyrimidin - 2 - one is prepared by condensing urea with acrolein in aqueous acid solution, at a pH of 0-4 and a temperature of 40-100‹ C. there being used at least 4 mols of urea per mol of acrolein. Preferably the mother liquor from the reaction is recycled as reaction medium it being purified by subjecting it either continuously or at intervals to treatment with an organic solvent, e.g. methanol.
Patent GB-1102461-A (GB)
Title: Improvements in or relating to tractors
Inventor: WARD WALTER HENRY
IPC: A01B63/10
Filed: 1963-09-11
Abstract: 1,102,461. Tractor power lift mechanisms. SOUTH AFRICAN FARM IMPLEMENT MANUFACTURERS Ltd. 8 Sept., 1964 [11 Sept., 1963], No. 35757/63. Heading A1P. A tractor power lift mechanism for use with wide implements is arranged so that the draft links 6 can move independently and is characterized by members 32 pivoted at 29 to the draft links and connected at their upper ends by a transverse member 35 to which is pivoted a sensing member 36 adapted to operate a control valve, for draft control or weight transfer, in the power lift mechanism by movement against a spring bias. The lower ends of the members 32 are formed as bell cranks 27, 28 to which the drop links 12 are pivoted. The bell cranks can be locked to the draft links by pins 48. The arrangement is such that only the resultant movement of the draft links is transmitted to the draft sensing member 36. In an embodiment the length of the cross-member 35 can be varied. In a further embodiment the draft links have a cross piece which co-operates with a roller on the implement draft bar which is pivoted to the tractor.
Patent GB-1395550-A (GB)
Title: Toolholders
IPC: E21C35/19
Filed: 1972-08-01
Abstract: 1395550 Pick Boxes MATTHIAS SPENCER & SONS LTD 26 Sept 1973 [1 Aug 1972] 35776/72 Heading E1F A tool shank-receiving socket 15, 16, 17 of a holder 11 for a shanked tool, e.g. a mineralcutting pick, is formed in one of a pair of opposed side walls with an open-topped slot comprising a mouth portion 15 leading to an increased width portion 17 and in at least one of the other pair of opposed side walls with a lateral bore 22, the axis of which is inclined at an acute angle to the axis of the socket. Such a holder can receive tools having one or the other of two different types of resilient latching means, e.g. bayonet or plug latching means. An aligned, open-topped slot may be formed in the other of the first pair of opposed walls. The or each slot may pass completely through the said side walls. A bore may be formed in the other of said first pair of side walls in alignment with the widened portion of the slot.
Patent GB-876875-A (GB)
Title: Improvements in spool axminster carpet looms
Inventor: BASSINDALE ISAAC BRADLEY
IPC: D03D39/02
Filed: 1958-11-07
Abstract: 876,875. Spool braking for axminster looms. T. M. M. (RESEARCH) Ltd. Dec. 7, 1959 [Dec. 7, 1958], No. 35855/58. Class 142 (2) The spool transfer mechanism 13 of an Axminster carpet loom is provided with a double acting pneumatic cylinder 14 which, firstly, applies a large braking load on the spool 121 during the transfer and, secondly, a lower braking load during the tuft withdrawal. The lower braking load is obtained by admitting compressed air to the opposite side of the cylinder 14 to relieve the first load or, alternatively, two cylinders acting at different pressures may be utilised.