baber/WOPTO huggingface dataset:
Patent GB-139740-A (GB)
Title: Improvements in air lift pumps
IPC: F04F1/18
Filed: 1919-11-04
Abstract: 139,740. Rigling, J. Nov. 4, 1919. By aerating ascending column.-Air-lift apparatus comprises a water-pipe D and an air-pipe d, the latter being carried by a plate E provided with adjusting-screws &c. whereby the pipe d may be adjusted relatively to the water-pipe for varying the size of the air inlet N to the mixing-tube J. The tube J is attached by webs j to a member H carried by the lower end of the water-pipe. The air-tube carries an attachment K slidably mounted on the tube J and provided with a water inlet L opening into the lower end of the pipe J. The air passes from the pipe d through a port 0 to a port N between the pipes L, J, and water enters by the lower end of the pipe L and is mixed with the air in the tube J. As the mixture enters the member H, more water is drawn in through the webs j. A scale pocket m is attached to the lower end of the pipe d. The water-pipe may be movable and the air-pipe fixed.
Patent GB-1299569-A (GB)
Title: Force commutation circuits for controlled power switching devices
IPC: H02M7/515
Filed: 1971-04-19
Abstract: 1299569 Commutating thyristors WESTING- HOUSE ELECTRIC CORP 19 April 1971 [11 March 1970] 27216/71 Addition to 1298597 Heading H2F A circuit for controlling the energy supplied from a D.C. source E to a load Z comprises a pair of power switching devices Sp1, Sp2 and a pair of commutating capacitors C1, C2 each arranged to turn off Sp1 and Sp2 alternately. As described, thyristors Sca1 and Sca2 are turned on so as to discharge C1 and C2 respectively through Sp1 and Sp2, thus turning off the main thyristors. C1 and C2 then recharge with reversed polarity until Sca1 and Sca2 turns off. After further triggering of the power thyristors Sp1 Sp2, thyristors Scb1 and Scb2 are turned on discharging C1 and C2 respectively through Sp2 and Sp1. C1 and C2 now recharge with the polarity shown. The load current iL can freewheel via diodes Dc1...Da4 after each commutation.
Patent GB-743758-A (GB)
Title: Improvements in or relating to pumps for hydraulic actuating systems
IPC: F04B1/04
Filed: 1953-10-05
Abstract: 743,758. Reciprocating pumps. BENDIX AVIATION CORPORATION. Oct. 5, 1953 [Oct. 17, 1952], No. 27296/53. Class 102(1). [Also in Group XXIX] A pump assembly for supplying a system having a small continuous demand and a large intermittent demand, comprises a constant stroke radial fixed cylinder pump having pistons 100 actuated by an eccentric 101 and delivering a quantity approximately equal to the continuous demand and a revolving radialcylinder pump having pistons 22 actuated by an eccentric track 25 adjustable by the pressure in the system to vary the stroke of the pistons to give a maximum or zero delivery. The cylinders 20 communicate with ports 21 in the end face of the rotor 15 and a valve plate 19 is fitted in a recess 271 in the cover 11. The valve face has an inlet port 38 communicating with the inlet 43 and a discharge port 39 is connected through a sleeve 47 and non-return valve 48 to the outlet 49. The sleeve 47 is mounted in recesses in the cover 11 and the plate 19 so that the force exerted on the valve plate through the.provision of the port 39 is balanced by the force exerted on the back within the cross section of the sleeve 47 ; the axis of the sleeve 47 coincides with the centre of pressure of the port 39. The track 25 is mounted to pivot on a pin 60 located in grooves 61, 62 and a pin 64 is fitted in a groove 65 and has a surface 66 shaped with a curvature about the centre of the pin 60 and engaging a similarly curved surface on the track 25. The track has a piston 70 fitted in a cylinder 68 connected by a passage 118 to the outlet of the pump 10 and a passage 80 to the outlet 49. A second piston 71 slides in the cylinder 69 and is loaded by a light spring 87. The piston 71 is of larger diameter than the piston 70 so that when it is loaded by the outlet pressure, it moves the track 25 to maximum eccentricity. The cylinder 69 is connected by a passage 72 to a housing 75 containing a shuttle valve 79 loaded by a spring 84 ; a passage 76 connects the housing 75 to the outlet 49. When the outlet pressure is below a certain value, the valve 79 is in the' position shown in Fig. 6 and the cylinder 69 is connected to the outlet 49 and the track is moved to give the maximum delivery, but when the pressure exceeds this value, the valve 79 is moved against the loading of the spring 84 and the cylinder 69 is connected to the inlet side of the pump through passage 114 and the piston 70 moves the track to a concentric position so that the delivery is zero and the system is supplied by the pump 10 at a pressure limited by the relief valve 89.
Patent GB-1213596-A (GB)
Title: Magnetically permeable core reactor
IPC: H02P13/00
Filed: 1969-05-29
Abstract: 1,213,596. Inductors. WELDING RESEARCH Inc. 29 May, 1969 [6 June, 1968], No. 27338/69. Heading HIT. A magnetic core reactor has a core having a centre limb and two or more outer limbs, each outer limb carrying a separate winding 7, 8, each winding having its own terminals 9, 10, 11, 12 so that they may be interconnected in a variety of ways to obtain different inductance values. The core may be laminated or of powdered iron or ferrite.
Patent GB-187222-A (GB)
Title: Improvements in or relating to electric transformer oil boxes
IPC: H01F27/12
Filed: 1922-10-10
Abstract: 187,222. Akt.-Ges. Brown, Boveri, et Cie. Oct. 15, 1921, [Convention date]. Tanks and other stationary containers with air-cooled radiator elements.-A transformer oil tank is provided with external radiators in the form of flat cooling-plates c built up from smooth metal plates connected together in pairs along their edges d, the edges of the apertures which connect the plates to one another and to the tank being strengthened by flanges e. In the arrangement shown in Fig. 3, the flanges of adjacent plates are connected together by means of right and left hand screw-threaded nipples f with interposed packing, the outer aperture of the outside plate being closed by a screw cap m. In a modification, the two flanges of each plate are connected together by pieces of tubing, through which pass screw bolts which clamp the plates to each other and to the tank. In a further modification, Fig. 7, the flanges e for each plate are made in one piece with radial holes i for the passage of the oil into the plates. In this form the outer aperture is closed by a lid n secured in position by the bolts h which clamp the plates to the tank
Patent GB-247305-A (GB)
Title: Portable rotary cutting implements
IPC: B27B9/00
Filed: 1924-11-17
Abstract: 247,305. Michel, E. Nov. 17, 1924. Circular-saw machines. -A motor-driven saw 66 &c. is mounted on a shaft 60 rotated through gearing 59, 58 from a shaft 55 driven directly from a motor 50 contained in a two-part casing 39, 42. A front guide 82, bifurcated at the rear to straddle the saw is pivotally mounted on an arm 85 adjustably secured between lugs 89 on the casing'46 of the gearing 59, 58. A rear guide 97 with a longitudinal and sharpened edge 98 which travels in the kerf made by the saw is attached to an elongated reduced portion of the casing 42. The tool is secured to the shaft 60 by a key 69 and also by a dowel pin secured to clamping discs keyed to the shaft. On the driving shaft 55, between the motor and the cutter is a fan 117 which forces air through the motor casing on to the tool and also prevents racing of the motor when the saw is not under load. The implement is held by a handle 115 and a side handle and is controlled from a switch 111.
Patent GB-1036953-A (GB)
Title: Improvements relating to brushes
Inventor: BRIERLEY JAMES
IPC: A46B13/00
Filed: 1964-07-03
Abstract: 1,036,953. Brushes. J. BRIERLEY & SONS Ltd. June 30, 1965 [July 3, 1964], No. 27496/64. Heading A4K. A brush body spun moulded of polyethylene has semi-cylindrical inner and outer walls 10, 11 connected by flat end walls 13 and base walls 16, the inner wall having longitudinal channels 18 connected at their ends by semi-annular channels and holes 20, 21 being drilled through the walls 10, 11 to receive groups 24 of bristles retained by steel wires 25. Drain holes are provided at the curved edges of outer wall 11, the brushes being used as rotary brushes in vehicle washing plant.
Patent GB-956713-A (GB)
Title: Improvements in or relating to pipe couplings
Inventor: HEYGATE JOHN TREVOR NICHOLAS
IPC: F16L27/073
Filed: 1960-08-09
Abstract: 956,713. Pipe couplings. J. R. H. PRODUCTS & CO. Ltd. Nov. 9, 1961 [Aug. 9, 1960], No. 27543/60. Heading F2G. A pipe 10 has a frusto-spherical part 11 located within the end of a pipe 12 and that part is engaged on opposite sides of the centre thereof by packing rings 17, 18, one of the rings being spring-urged into engagement and the other ring having an outwardly extending flange 19 which is clamped between the pipe 12 and a clamping ring 20 mounted, as by screwing, thereon. As shown, a dished or corrugated spring washer 15 is disposed between a shoulder 14 of the pipe 12 and a brass ring 16. The rings 17, 18 are of polytetrafluoroethylene.
Patent GB-641185-A (GB)
Title: Improvements in or relating to electrically heated flat-irons and the like
IPC: D06F75/26
Filed: 1947-10-14
Abstract: 641,185. Thermal switches. TYM, J. Oct. 14, 1947, No. 27571. [Class 38(v)] A thermal switch, for an electric iron or like device, comprises two contact-carrying members 11, 21, fixed to an insulator 12 of thermo-setting synthetic resin capable of resisting temperatures up to 400‹C. The upper member 11 is adjustably connected to a bimetal strip 3 by a rod 17 and nut 19, the strip 3 being brazed, welded or soldered to a bracket 4 screwed to the base 1. The lower member 21 is adjustable by means of a cam 23 co-operating with a roller 22 on the member 21, the cam spindle 24 passing through a bush 26 which may be integral with or welded or brazed to a bridge 25. Specification 602,844 is referred to.
Patent GB-264797-A (GB)
Title: Improved process for the preparation of a concentrated and stable solution of 3-acetylamino-4-oxyphenylarsinic acid by the aid of its ammoniacal salt
IPC: C07F9/74
Filed: 1926-11-03
Abstract: 264,797. Etablissements Poulenc FrÞres. Jan, 19, 1926, [Convention date]. Ammoniunn. 3-acetylamino-4-oxyphenylarsinate is prepared by adding ammonia to a solution of 3-acetylamino-4-oxyphenylarsinic acid in dilute aqueous ammonia until neutral, and precipitating the salt with alcohol. A solution of the salt in water, to which a trace of sodium sulphate is added, may be made up in ampoules and sterilised. Specification 224,764 is referred to.
Patent GB-483155-A (GB)
Title: Improvements in and connected with trolleys
IPC: B62B3/06
Filed: 1936-10-13
Abstract: 483,155. Hand trucks. ROSSER, T. B. Oct. 13, 1936, No. 27717. [Class 108 (i)] In a lifting truck adapted to raise and transport a load on a stillage, the platform comprises a pair of spaced channel side members which fit over a pair of side members of the undercarriage which side members at the rear also carry the ground wheels which are partly accommodated within the platform side members when the platform is in its lowest position. The underframe comprises spaced bars e<1> at each side connected by a cross bridge w in which is arranged the king pin x<2> of the front steering wheel o. The handle x is pivoted to the king pin x<2> and is provided with a pin d over which is adapted to be engaged a hook c pivoted to a cross-member h connecting the side members a of the elevating platform. These side members a are of channel form and adapted to embrace the underframe members e<1> when the platform is in its lowered position. The underframe is connected to the platform by fore-and-aft links l<2>, b. Ground rear wheels g are provided, two of which at each side are mounted on a rocking arm. When the platform is raised by means of pulling forward the handle x when it is engaged by the hook c, a retaining catch q engages a roller sleeve carried by the pin l<1> of the front link l<2>. This catch q is releasable by a pedal f. A guard t may be provided as shown.
Patent GB-319326-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F13/02
Filed: 1929-09-12
Abstract: 319,326. Western Electric Co., Ltd., (Assignees of Reddig, C. E.). Sept. 20, 1928, [Convention date]. Motors, gearing for. - Washing- machines with rotary stirrers are provided with driving-gear whereby the stirrer may be rotarily reciprocated at one of two speeds. An electric motor 22, Fig. 1, drives a worm shaft 34 through a belt 30 and the worm-wheel shaft 40, driven by the shaft 34, rocks a double quadrant 43 about its pivot 70 through a crank 42 and link 44. The two portions of the quadrant are of different radii as shown in Fig. 2, and mesh with corresponding pinions 45, 46, Fig. 1, loose on the stirrer shaft 15. One of the pinions is clutched to the stirrer shaft by means of a clutch element 50 moved by a. lever 52 which is operated by means of a hand lever 57 working in a gate 58, Fig. 2, having slow, rest and fast positions. The quadrant is formed with a projecting cam 59 which abuts against one arm of a bell-crank lever 60, Fig. 3, the other arm of which bears against a collar 63 fast on a piston rod 64 to depress the rod against a spring 65 during the forward swing of the quadrant. On the return movement of the quadrant the spring 65 raises the piston within the cylinder 62 to force oil by a pipe 6 into the channelled portion of the crank arm 44 to lubricate the crank pin and the connecting pin of the quadrant. The driving-gear is enclosed in casings 17, 36, oil being maintained in the casing 17 to the level shown. The motor 22 is hung from the cross-bars 23, 24 which are slidable in supports 26 whereby the tension on the belt 30 may be adjusted by manipulation of a screwed shaft 28.
Patent GB-616895-A (GB)
Title: Improvements in or relating to tracks or guideways for use in carrying workpieces
IPC: B21C33/00
Filed: 1946-09-17
Abstract: 616,895. Roller-way conveyers. VICKERSARMSTRONGS, Ltd., and ROBSON, T. Sept. 17, 1946, No. 27894. [Class 78 (i)] A roller-way conveyer for use with a machine such as a press P includes an end portion comprising rollers 1 carried by frame members 2, 3 and arranged to move away from the machine P towards a fixed roller track 6, and an intermediate portion, comprising rollers 4 mounted on links 5 and supported by bars 7, adapted by folding to the position shown in Fig. 3, to permit the movement of the movable end portion. The links 5 are formed with abutments 9, 10 which by engaging the adjacent link, limit the folding and unfolding movement of the intermediate portion of the track. In an alternative form, the rollers 4 are guided by slots in fixed frame members to move vertically, and are supported by longitudinal members secured to the movable portion of the track, the supporting members being so shaped that normally the rollers 4 are level with the rollers 1 but as the movable portion moves away from the machine the rollers 4 fall to pass beneath the movable portion.
Patent GB-1011728-A (GB)
Title: Improvements in or relating to hermetically sealed piston-type compressors
Inventor: VALBJORN KNUD VAGN
IPC: F25B31/02
Filed: 1962-07-19
Abstract: 1,011,728. Compressors. M. CLAUSEN, [trading as FIRMA DANFOSS, VED. ING. M. CLAUSEN]. July 19, 1962, No. 27899/62. Heading FIN. An hermetically sealed piston-type compressor comprises a crankshaft 7 secured to the rotor 6 of an electric motor disposed within a casing 1, 2, the crank pin 9 of the crankshaft 7 being connected to a sliding block 10 of a cross-head 11 to which is attached a piston 12 disposed within a cylinder 13, the crankshaft 7 being provided with a conical member 16 which acts as a centrifugal pump to draw oil from a sump 17, the oil being pumped through bores 14 and 15 in the crankshaft from which the oil is led to a bearing 8 and the crank pin 9, and a plate 23 is provided which partly surrounds the end of the crankshaft remote from the electric motor; the plate 23 collecting oil issuing from points B, C, D and E along the crankshaft and directing the oil over parts of the compressor to cool the latter. The compressor is suspended within the casing 1, 2 by springs 3 which are attached to a supporting member 4 formed integrally with the crankshaft bearing 8. Oil from the plate 23 passes through an opening 24 formed in the member 4, and a fan 25 blows the oil over the motor-windings 27 and through an air gap 28 between the rotor and stator of the electric motor. A pressure line 31, which includes a muffler (not shown), is of serpentine form and lies outside the plate 23. In a second embodiment, Fig. 3 (not shown), the plate 23 is formed with a plurality of holes disposed next to the supporting member 4, the oil flowing through the holes and over an inclined surface of the member 4. Alternatively, apertures may be provided between the supporting member 4 and the plate 23 or the member 4 may be formed with grooves. The plate 23 may be combined with the cylinder block or other parts of the compressor.
Patent GB-833814-A (GB)
Title: Improvements connected with bar counters
Inventor: GROSVENOR ALFRED FRANCIS
IPC: A47F9/00
Filed: 1957-09-04
Abstract: 833,814. Bar counters. HEATH Ltd., W. H. Nov. 28, 1958 [Sept. 4, 1957], No. 27940/57. Class 116 The bottle storage space beneath a bar counter A is provided with a U-shaped strap D, slidable in guides F, for drawing forward bottles from the back of the shelf B.
Patent GB-1079460-A (GB)
Title: Improvements in and relating to the electroless deposition of magnetic materials
IPC: H01F41/24
Filed: 1966-06-23
Abstract: An electroless plating bath comprises water soluble salts which give a nickelous to ferric ion ratio of 4.5:1 to 31.4:1 and sufficient hydroxyl ions to keep the pH at least 8.  Hypophosphite ions are included from 0.29 x 10-3 to 100 x 10-3 mols per litre.  The solution may also contain sequestering ions e.g. Rochelle salts, seignette salt, tartaric acid, ammonia, ammonium hydroxide or chloride.  The substrate may be Cu, Cu-Be, Ni, Co, Fe, steel, Al, Zn, Pd, Pt, brass, Mn, Cr, Mo, W, Ti, Sn, Ag, carbon or graphite. When the substrate is Cu it may be cleaned with HCl and then immersed in palladium chloride. The deposition may take place in a magnetic field. The substrate may be in the form of a chain made by etching a strip.  The water soluble salts may be sulphates, chlorides, acetates, nitrates or sulphonates.
Patent GB-1367347-A (GB)
Title: Programming device
IPC: B23Q15/00
Filed: 1971-06-15
Abstract: 1367347 Stencil switches MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 15 June 1971 [19 June 1970 (3) 20 July 1970] 28065/71 Heading H1N [Also in Division G3] A programming device suitable for automatic control of machine tools or the like, comprises a plurality of code pins 40 having recesses and protrusions at predetermined locations thereon, a movable belt 39 having a code pin carrying bar 58 on which said code pins are slidably and detachably mounted in a row, and a switching mechanism for generating a plurality of signals simultaneously in accordance with the locations of said recesses and protrusions on said code pins when said code pins are in a predetermined position to which they have been moved by movement of said belt 39. As shown, a plurality of bars 58 interlock (Fig. 10, not shown) to constitute the belt 39 and have protrusions forming teeth to engage drive gear 38. Each code pin 40 has a square top surface divided into four equal areas each sensed by the end of a respective lever 32, 33, 34, 35 coupled to respective switches 28, 29, 30, 31 whereby binary signals representative of sixteen different pieces of information from one code pin are possible. The output pinion 85 of a continuously running motor (83, Fig. 5, not shown) drives the input gear 86 of a dog clutch 87 which produces one complete revolution of its output gear 91 each time an electromagnet 88 is energized. This rotates cams 45 and 76 by one revolution, whereby a follower 46 on lever 41, pivoted on a shaft 47, lifts all the sensing levers 32 to 35 by means of cross-bars 42 and 43. For clarity only one set of four levers and switches (corresponding to one code pin 40) are shown. A follower 77 on lever 75, also pivoted on shaft 47, causes pawl 74 to advance the ratchet 73, and hence belt 39, by one step. The sensing levers 32 to 35 are then lowered again and the switches provide new signals. The opposite end of shaft 44 to that carrying cam 76 has a cam (93, Fig. 5, not shown) which closes a switch (94) to signal completion of a step.
Patent GB-930428-A (GB)
Title: A method for purification of 5-purine-nucleotides
Inventor: SANNO YASUSHI
IPC: C12N15/10
Filed: 1961-08-02
Abstract: 51-Purine nucleotides are separated from an admixture thereof with 51 pyrimidine nucleotides by crystallisation of the di-sodium salts from a mixture of water and methanol, ethanol, n-propanol or acetone either by adding organic solvent to an aqueous solution of the di-sodium salts or by dissolution thereof in a hot solvent mixture and cooling the solution.  One part by weight of sodium salts is preferably crystallised from 4 to 10 parts by volume of water together with one third to twice the volume (relative to the volume of water) of the organic solvents; in the case of methanol the ratio of volumes of methanol to water preferred is between 0.5 to 2 : 1. The product may be recrystallised from the aqueous solvent system. The starting material may be obtained by hydrolysing nucleic acids or their partial hydrolysates with a suitable enzyme system or an organism producing such a system to yield substantialy equal amounts of 51 purine and 51 pyrimidine nucleotides.  A list of suitable organisms is given.  The destructive action of phosphomono esterases, if present, is inhibited by a suitable additive and 51 adenylic acid may be deaminated by an enzyme system or diazotisation.  The crude hydrolysate may be further purified by contacting with active carbon and/or ion exchange resins.ALSO:51-Purine nucleotides separated from mixtures thereof with 51-pyrimidine nucleotides by crystallizing the disodium salts from a water-methanol, -ethanol, -n-propanol or -acetone mixture (see Group IV (b)) are used as condiments.
Patent GB-1006472-A (GB)
Title: Improvements in or relating to brushes
IPC: A46D1/00
Filed: 1963-07-16
Abstract: 1,006,472. Brushes. CHELTON (ELECTROSTATICS) Ltd., and H. R. SMITH. July 9, 1964 [July 16, 1963], No. 28169/63. Drawings to Specification. Heading A4K. [Also in Division B4] A bundle of glass fibres, secured together by a bonding material to form a rod, have the material removed from one end to form a brush head. Preferably, the bonding material is a curable resin which is burnt off (and may support combustion) to expose the desired length of bristle. The rod may be formed by coating the fibres with a polyester resin and drawing a bundle of coated fibres through a tube of the required cross-sectional shape. Alternatively, nylon is extruded around the fibres. The form of the brush tip may be varied by grinding the end of the road to the desired shape prior to removing the bonding material. The brush may be cleaned by burning off hardened paint or other material.
Patent GB-947187-A (GB)
Title: A device for determining speeds of travel
IPC: G04F10/04
Filed: 1960-08-15
Abstract: 947,187. Timing vehicles. M. GATSONIDES. Aug. 15,1960 [Aug. 14, 1959],No. 28195/60. Heading G1J. In a device for determining the speed of travel of an object by measuring the time taken for the object to transverse a path of given length the object engages a wire or other member 2 and closes switch 6 to complete a circuit through relay 9, switch 10<SP>1</SP> and weak D.C. source 8. Energization of relay 9 closes switches 9<SP>1</SP>, 9<SP>11</SP> and thus closes a circuit through an electric timer 11 with an A.C. source 13 of known frequency if switch 12 is closed. When the object engages wire or other member 3 switch 7 is closed and energization of relay 10 opens switch 101 breaking the circuit containing relay 9 and thus opening switches 9, 9<SP>11</SP> to stop timer 11. In another embodiment, Fig. 2, hose pipes 2a, 3a and a pneumatic tumbler switch are used.