baber/WOPTO huggingface dataset:
Patent GB-685558-A (GB)
Title: Improvements in or relating to remote control devices for multiple-speed gear-boxes
IPC: F16H63/30
Filed: 1950-03-06
Abstract: 685,558. Variable-speed gearing. SIPER SOC. ANON. March 6, 1950 [March 29, 1949; Sept. 27, 1949] , No. 5639 / 50. Class 80 (ii). In a multiple-speed gear-box each strikerrod 1 is moved to its operative positions by separate electromagnets 3 and is locked in those positions upon energization of a latching electromagnet 11 which has an armature 12 formed with a spur 13 adapted to engage notches 14 in the striker-rod 1. As shown the striker-rod 1 is held in its middle or neutral position by compression springs 4 and has at 2 an armature portion for the electromagnets 3. Upon energization of one of the electromagnets 3 the rod 1 moves to the right or left to introduce a gear ratio and when it reaches its working position it actuates a switch 8 which acts to de-energize the magnet 3 and energize the locking electromagnet 11. A wiring diagram for a gear-box with four forward and one reverse speeds is shown in Fig. 2. A switch arm 18 engages contact 20 for the forward speeds and a contact 25 for the reverse speed. Another switch arm engages contacts 21-24 for the forward speeds. A single locking electromagnet may lock a plurality of striking rods. In a modification embodying three forward and one reverse speeds each striking-rod electromagnet 51-57, Fig. 10, is in series with the locking electromagnet 61. In the neutral gear position a switch 67 is closed to short circuit the coil 61. Upon energization of an electromagnet 51-57 a strikerrod is moved and when it reaches a working position it actuates cam means to open the switch 67 whereupon the electromagnet 61 is energized to lock the striker-rod. In this construction the current through the electromagnets 61-57 when the gears are in a working position is not zero as in the first embodiment but is considerably less than the current which flows during the gear changing operation.
Patent GB-307065-A (GB)
Title: Improvements in or relating to centrifuges for the separation of solid matter from liquids
IPC: B04B1/20
Filed: 1929-02-20
Abstract: 307,065. Bergedorfer Eisenwerk Akt.- Ges. March 2, 1928, [Convention date]. Density separators; discharging. - A centrifuge for the separation of solids from liquids has mechanical scraping means to transport separated solids to discharge openings in the bowl wall. The bowl 1 may be of cylindrical or conical form and is fed by the central tube 3. The clean liquid passes out through openings 4, while the solids are brought to the openings 5 by the helical conveyer 6 rotated by the shaft 7 at a rate different from that of the bowl. The openings 5 are arranged in an enlarged part of the bowl, and the conveyer 6 is provided with ribs or wings 12 running in the enlarged part. The discharge holes 5 are made conical as shown, or a thin plate with a small hole can be arranged at the inner side of the bowl wall in a larger opening. Where the solids may form large lumps, an addition liquid may be supplied through the pipes 8 to mix with the solids. In some cases this liquid may be supplied through openings in the conveyer.
Patent GB-230812-A (GB)
Title: Improvements in dies for cutting screws
IPC: B23G5/08
Filed: 1925-03-02
Abstract: 230,812. Haenggi Fils, C. March 14, 1924, [Convention date]. Screwing-dies. - A divided screwing-die for hand or machine use is formed in two parts A connected by a hinged link d recessed into slots in each part and serving to prevent axial displacement. The die, which may be round or square, may be opened to permit the cutting edges to be ground by a thin disc.
Patent GB-695451-A (GB)
Title: Improvements in or relating to full fashioned hosiery machines
Inventor: SAUNDERS ALFRED PERCY
IPC: D04B11/32
Filed: 1950-03-07
Abstract: 695,451. Knitting-machines. WILDT & CO., Ltd. Jan. 26, 1951. [March 7, 1950] No. 5728/50..Class 74 (ii). The welt hooks 2 of a full fashioned machine are slidably mounted in transfer elements 13 so that after taking the initial course loops for the production of a turned welt, the welt hooks are withdrawn leaving the loops on the transfer elements which return the loops to the needles. The transfer elements 13 comprise a U-shape structure having a pointed end 15 towards which the sides slope, as at 29, from shoulders 16. The elements are clamped between two plates 18, 20 spaced apart by a distance piece 22 so as to leave a hollow interior in which a bar 8 mounting the welt hooks can slidably move back and forth. Each welt hook slides in a transfer element and is operated such that after taking a loop of the initial course and sufficient knitting has been completed to insert a welt rod, the movement of the composite welt bar is reversed so as to turn the welt such that the loops ride up the sides 29 of elements 13 until they engage the shoulders 16. In this position sufficient clearance is afforded to withdraw the hooks 2 without engaging the loops. Thereafter the welt bar is upturned so that the transfer elements cover the hooks of the needles and the loops can be readily positioned on the needles.
Patent GB-704466-A (GB)
Title: Improvements in electric voltage regulators, particularly for train lighting plants
IPC: H02P9/18
Filed: 1951-03-09
Abstract: 704,466. Regulating switches. GES. FUER ELEKTRISCHE ZUGBELEUCHTUNG. March 9, 1951 [May 9, 1950; Aug. 9, 1950], No. 5744/51. Class 38(5) [Also in Group XXXV] In a regulating switch in which a rotatable magnet armature wraps a short circuiting band over a curved series of contacts, the force of the magnet is held in equilibrium with that of the band by (a) an additional spring loaded band and a cam secured to the magnet; or (b) a non-linear magnet air gap; or (c) a special contour of the contacts. The short circuiting band b1 secured to a pivoted frame r and tensioned by a spring f1, is moved across the contacts l1, 12 by the armature a which is restrained by the spring tensioned band b2 passing over the curved guide plate k. In a modification, Fig. 2 (not shown), the magnet air gap is shaped by using a laminated pole piece, the laminations being clamped into position after adjustment: The curved contact arrangement is disclosed in Fig. 3 (not shown). Two such switches may be arranged so that their contacts are relatively displaced by half a step.
Patent GB-1460413-A (GB)
Title: Method of and apparautus for measuring blood pressure polyurethane elastomers
IPC: A61B5/022
Filed: 1975-02-12
Abstract: 1460413 Measuring systolic and diastolic pressure AMBITEX CORP and CENDEV CORP [trading as AMBITEX CO] 12 Feb 1975 [19 Feb 1974] 5934/75 Heading G1N In an apparatus for measuring a patients' systolic and diastolic blood pressure two independent measurements of the patient's heart beat are taken using a pressure transducer 18 which measures the pressure inside a cuff 12, and a microphone 24 which senses the noises from the constricted blood flow downstream of the cuff. These signals are processed and supplied to a coincidence circuit 21. The pressure at the start and at the termination of the signal from the coincidence circuit 21 is measured (after the cuff 12 has been pumped up to stop the blood flow and while the pressure is allowed to decrease slowly). These two measurements correspond to the systolic and the diastolic pressure. The invention makes use of the pronounced acoustic pulses (Korotkoff sounds) that can be detected as the pressure in the cuff is slowly decreased. The sounds start when the systolic pressure is reached and die away at diastolic pressure. The pressure is supplied from a source 15 via a valve 14 that is controlled by a logic circuit 31, which also controls a valve 17 that allows the pressure to decrease. Initially the pressure is increased at a given rate for a set range, held for a given interval, and then the procedure is repeated. This is continued till no signals are detected by the transducers during two sucessive time intervals. Then the pressure is allowed to decrease slowly. The pressure transducer output is differentiated to provide a signal representing the heart beat. This signal is fed via a filter 20 and a threshold circuit B to the coincidence circuit 21. The coincidence circuit also receives the signal from the microphone which is connected via an acoustical conduit 22 to a small cup secured to the patient's arm as shown. The microphone's output signals is passed via a further filter 26 and a threshold circuit. The pressure transducer's signal is also fed via an A-D converter which supplies a display device that records and displays the pressure at the beginning of the pulses coming from the coincidence circuit 21 and at the finish of the pulses coming from the coincidence circuit 21.
Patent GB-1300973-A (GB)
Title: Production of titanium dioxide concentrate
IPC: C09C1/36
Filed: 1970-02-06
Abstract: 1300973 Titanium dioxide concentrates ISHIHARA SANGYO KAISHA Ltd 6 Feb 1970 [8 Feb 1969] 5951/70 Heading C1N A titanium dioxide concentrate is produced by leaching a titaniferous material, i.e. titaniferous iron ores, e.g. ilmenite, leucoxene and arizonite, and ores prepared by subjecting these titaniferous iron ores to a chemical or physical processing, with a mineral acid in the presence of a seed which comprises a finely divided solid material which has been added to or formed in situ in, the leach liquor and which is capable of accelerating the hydrolysis of a titanium salt solution and removing a solution containing Fe values from the product thus obtained. The seed may be a colloidal hydrated metal oxide, e.g. of TiO 2 , Nb 2 O 5 , Ta 2 O 5 , SnO 2 , in which the molar per cent of metal oxide in the seed based on the TiO 2  in the titaniferous material is from 0À1 to 10%. The titaniferous ore used may have a grain size less than 200 mesh or it may have a size between 20 and 200 mesh Tyler. The mineral acid may be HCl of a concentration 100-300 g./l., or sulphuric acid having, for example a concentration of 100-600 g/.l. The titaniferous material may have been obtained by reducing a titaniferous iron ore containing ferric values so that substantially the whole of the ferric values contained in the ore are converted to ferrous. Alternatively the titaniferous material may have been obtained by removing iron value from a titaniferous iron ore by acid leaching. The leaching may be carried out in the presence of fluorine ions or in the presence of a reducing agent.
Patent GB-356650-A (GB)
Title: Interchangeable jacket for insertion in the vessel of a centrifuge
IPC: D01D7/02
Filed: 1931-02-25
Abstract: 356,650. Centrifugal machines. MEYERHOF, B., 3, Defreggerstrasse, Treptow, Berlin. Feb. 25, 1931, No. 5960. Convention date, Feb. 25, 1930. [Class 23.] An interchangeable inset for centrifuge vessels, and in particular for artificial silk spinning cans, consists of a sheet of elastic material rolled into a spiral. The sheet has apertures a, and distance pieces b, b<1> on its edges and surface respectively. It may be made of spring-steel with a coating to resist the action of the process fluid ; it can be retained in its spiral form by clips and reverts to its flat form when released.
Patent GB-754235-A (GB)
Title: Improvements in or relating to steering mechanisms for motor vehicles
IPC: B62D5/24
Filed: 1954-03-02
Abstract: 754,235. Vehicle power steering. ZAHNRADFABRIK FRIEDRICHSHAFEN AKT.- GES. March 2, 1954 [April 4, 1953], No. 6086/54. Class 79 (5). In a vehicle steering gear wherein the steering column 30 incorporates a flexible coupling, the two parts of the latter are formed with nesting sleeves 39, 40, which are provided with coinciding, but oppositely inclined, slots 44, housing pairs of balls 45, and the movement of the latter when the steering column is turned against the resistance of the wheels actuates the control member 48 of a servo-assisting mechanism Member 48 can slide along the steering column and it is provided with an annular groove 46 carrying the pairs of balls and with an outer sleeve 47 to enclose the balls. Each member of the coupling carries teeth 35, 36 which interengage in the manner of a dog-clutch, helical springs being provided to centralize the teeth of one set between those of the other set.
Patent GB-1030245-A (GB)
Title: Absorption refrigeration systems
IPC: F25B47/00
Filed: 1963-02-14
Abstract: 1,030,245. Refrigerating; heat exchange elements. CARRIER CORPORATION. Feb. 14, 1963 [Aug. 27, 1962], No. 6117/63. Headings F4H and F4S. The generator of a continuous cycle absorption refrigeration system comprises heat exchange tubes 31 which extend through a tube plate 60, and a tubular member 75 (Fig. 3), of thermally insulating material is positioned in the open end 61 of each tube 31 to reduce heat transfer from the heating fluid in said tubes to the inner face 63 of the tube plate and so reduce corrosion of the latter when high temperature heating fluids are employed. The inserts 75 are formed of polytetrafluoroethylene and are kept in place by split ring springs 80, each insert having a lip 76 at its outer end and a tapering inner end 78 which terminates at a point spaced inwardly from the inner face 63 of the plate 60. A header 65 having an inlet pipe 41 for heating fluid is secured to the exterior face of the tube plate over the ends of the tubes 31 which are mounted in the lower part of a cylindrical casing 34. The upper part of the casing 34 houses the condenser oftherefrigerating system (Fig. 1, not shown), which employs water as refrigerant and lithium bromide solution as absorbent and has a separate shell housing the evaporator and absorber, the latter being associated with a purging unit. The flow of heating medium to the generator is controlled in accordance with the temperature of the cooled fluid leaving the evaporator of the system.
Patent GB-452515-A (GB)
Title: Improvements in the treatment of beet pulp
IPC: A23K10/33
Filed: 1935-02-26
Abstract: Beet pulp is pressed and dried, ground to produce a graded mixture of coarse and fine particles to minimize voids and then incorporated with molasses; the mixture may then be subjected to pressure, with the addition of water or steam if desired, to mould or extrude it into the form of rods and other shapes.  Salt, calcium carbonate and oil bearing materials, e.g. ground nuts, may be incorporated in the mixture before moulding.
Patent GB-163512-A (GB)
Title: Improvements in or relating to methods of making blocks, bricks, tiles or the like for building or other purposes
IPC: B28B19/00
Filed: 1920-03-01
Abstract: 163,512. Wilkinson, A. March 1, 1920. Faced bricks, blocks, and tiles.-In the manufacture of building-blocks and the like composed of pieces of stone, slag, brick, or other hard material held together by a cement-like binder, the mould is lined with a granular substance, such as sand, in which the hard objects are partly embedded before the binder is run in, so that they stand out in relief on the finished block. Part of the sand is taken up by the binder, and ornamental effects are produced by using suitably coloured material. The hard objects, if of unpleasing appearance, may be coated before use with the binding-agent, which may be, for example, a mixture of cement and fine sandstone.
Patent GB-565270-A (GB)
Title: Improvements in the manufacture of vitreous foot-tubes
IPC: C03B23/09
Filed: 1942-05-08
Abstract: 565,270. Glass manufacture. GENERAL ELECTRIC CO., Ltd., BREADNER, R. L., and SIMMS, C. H. May 8, 1942, No. 6234. [Class 56] Relates to the manufacture of a foot tube, for example, for an electric lamp, of the kind consisting of a pair of coaxial tubes 1, 10 united at one end. According to the invention, the end of a tube 1 is softened by a flame 3 and is pressed against a roller or rollers 4, each rotatable on an axis making a substantial angle with the axis of the tube, the tube being rotated about its axis and fed towards the rollers during the shaping process. The softened end of the tube continually curls back so as to generate a tubular body 10 outside the tube. Preferably, a second roller 8, with its axis parallel to the axis of the tube, is provided to form the part 10 into a cylinder coaxial with the tube. A second flame 7 may be provided to heat the part 10 as it is ahaped by the roller 8.
Patent GB-226073-A (GB)
Title: Improvements in car couplers
IPC: B61G3/16
Filed: 1924-03-11
Abstract: 226,073. National Malleable & Steel Castings Co., (Assignees of Willison, J.). Jan. 31, 1924, [Convention date]. Couplings, automatic.-A car coupler has two rigid oppositely disposed jaws with a cavity therebetween, a lock movable in the cavity longitudinally of the coupler to assume a projected locking position, a retracted unlocking position, and au intermediate lock-setting position, the lock having a rearwardly extending guiding portion engaging the floor of the coupler arranged to maintain the lock in position to be projected into locking position. The coupler head, Fig. 8, is provided with rigid jaws 3, 4 and a cavity 10, the floor of which is provided with two grooves 14, 15 and a slot 13 through the bottom of the casting. At the end of the slot and projecting upwardly from the floor of the casting are inclined surfaces a, b meeting in a ridge, and below these, on the underside of the floor, is a projecting, transversely inclined surface 21. The lock, Fig. 7, comprises a body 9 with a guiding surface 22 at the bottom adapted to engage either groove 14 or 15, a. tail 11 having an inclined undersurface 18 for engagement with the inclined surfaces a, b, Fig. 9, and a projection 12 adapted to pass through and slide in the slot 13, this projection functioning as a fulcrum on the inclined surface 21 on the coupler head to throw the lock into the groove 15 when the lock is pulled back by hand. In Figs. 1 and 2 the lock 9 is shown in its forward or coupled position into which it has been guided by the groove 14. The lock is prevented from leaving this groove either in coupling or rearward movement through impact, by the engagement of an inclined surface 18 on the tail 11 engaging the incline a on the floor 10. When uncoupling, the lock is moved into the lock-set position in the groove 15 by pulling either of the rods 22, 23. Fig. 3, rearwardly until the projection 12 on the lock engages the projection 21 on the coupler head so as to swing the front portion of the lock toward the jaw 4 and the flat portion of the tail 11 on to .the ridge of the inclines a, b, and then releasing the rod 22 or 23 so that the lock enters the groove 15. As the couplings move apart, the lock 9 slides. down out of the lock-set position, under the action of gravity, into locked or lowermost position where it is ready for automatic coupling.
Patent GB-290769-A (GB)
Title: Improved means for dredging or excavating
IPC: E02F3/88
Filed: 1927-03-07
Abstract: 290,769. Jensen, D. March 7, 1927. Suction apparatus.-Excavating or dredging means for use as in raising mineral-bearing wash, prospecting in agricultural properties, or sinking cylinders &c. in the construction of bridges, dams, &c. comprises a platform carrying a frame in which a cylinder is adapted to be raised, lowered or tilted, the cylinder having sluicing nozzles in its walls and a mouthpiece at its lower end and means for producing suction therein. As shown, a pontoon 1 is provided at deck level with one or more guides in each of which a cylinder 2 is longitudinally slidable under control of cables 7 and winches, each guide being supported by a universal joint to allow tilting of the cylinder. Pipes 9, 11, 18 pass through the cylinder, the pipe 11 delivering pressure water through a nozzle 12 below a restricted part 16 of the pipe 9, causing material to be sucked through a perforated spherical mouthpiece 10 and carried through the pipe 9 to mineral saving appliances 17; the pipes 18 deliver pressure water through nozzles 18a to wash out laterally-placed material. A grid 13, formed of independently hinged sections, is secured to the mouthpiece 10 and has tines &c. 14 on its lower face which engage the river &c. bed and screen the material passing to the mouthpiece; a green-hide sheet 15 covers the upper sides of, and links together, the grid sections. For mining &c. on land, a truck replaces the pontoon and the cylinder is provided with an armoured bow 19 reciprocated in guides 22 by a rod 21 and a crank &c. carrying spikes 23 for loosening the soil, holes 24 being provided between the spikes 23; a pipe 26 delivers pressure water through nozzles 25 opposite the holes 24 to wash away the material. The pipes 9, 11, 18, 26 are connected by flexible or jointed piping to the mineral saving appliances and pumps, and the tailings from the mineral saving appliances are washed back into the space behind the cylinder 2. For sinking cylinders &c. in bridge &c. construction, one or more cylinders 2 are placed within the cylinders &c. to remove the material, the cylinders &c. then sinking by their own weight.
Patent GB-269496-A (GB)
Title: Retarded overload relay or tripping device for electric circuit breakers and the like
IPC: H01H71/44
Filed: 1927-03-07
Abstract: 269,496. Ateliers de Constructions Electriques de Charleroi. April 19, 1926, [Convention date]. Automatic circuit-breakers &c.-A tripping device for a circuit-breaker which may be set for acting either instantaneously or with a retarded action on short circuit or with a retarded action on ordinary overload is provided with means whereby the electromagnet armature is not directly connected to the clockwork movement but simply permits such coupling against the force of a spring. The armature 2 is secured to a three-armed lever g pivoted at 3, the arm 5 of the lever operating the circuit-breaker. The third arm 4 of the lever is formed with a lug 14 which, in the position shown, is in the path of a pin m on the shaft M<1> of the asynchronous motor M thereby preventing it from driving the pinion 13. The free end of the arm 4 carries a giooved wheel 6 in the groove of which engages the arm a of a spring-pressed bell-crank pawl lever d co-acting with the ratchet periphery of the pinion 13 and pivoted at 8 to an arm 9 freely mounted on the shaft 10 of the pinion 13. The lever g is normally maintained in the position shown by a spring 18 the tension of which can be regulated by an index 19. Energization of the coil 1<1> on overload rotates the lever g clockwise sufficiently to free the lug 14 from the pin m but insufficiently to operate the circuit breaker, owing to the nose b of the third arm engaging in a notch c in a link 11 pivoted at 16. Movement of the link 11 to free the notch c from the nose, and so permitting the full stroke of lever g and operation of the circuit-breaker is delayed until a pin 15 on an extension of the lever 9 engages the cam end e of the link, the engagement of the pin 15 with the link 11 not occurring until the lever 9 has been sufficiently rocked by the ratchet pinion and pawl 13, d. The link 11 may be set for instantaneously releasing the nose b on short-circuit by rotating a cam 21 to free the deep portion of the recess from the nose which then merely rests at the top c<1> of the recess and rocks the link 11 against a spring 17 on short circuit. If, however, the cam 21 has been set in its lower position, release on short circuit will be retarded to the same extent as release on ordinary overload.