baber/WOPTO huggingface dataset:
Patent GB-990267-A (GB)
Title: Improvements in stereophonic pick-up devices
Inventor: ZIMMERMANN HEINRICH
IPC: H04R17/08
Filed: 1962-07-12
Abstract: 990,267. Stereophonic pick-ups. O. STEIDINGER, and S. STEIDINGER, [trading as STEIDINGER KOMM. - GES. GEB.]. July 12, 1962, No. 26785/62. Heading H4J. A sterophonic pick-up comprises a stylus 18, a stylus mounting 16 permitting movement in two orthogonal directions, a web 13 of resilient material mounted on the stylus mounting 16, two rigid links 11, 12 connected to the web 13 and located at right angles to one another, and two electro-acoustic transducers 1, 2, each acted upon by one link 11, 12 via a resilient coupling member 7. Coupling member 7 and web 13 are preferably of rubber and links 11, 12 are of aluminium alloy. The ends 14, 15 of the links 11, 12 are of angled cross-section. Each limb 9, 10, 14, 15 increases in crosssectional area away from the main link portion to ensure permanent seating in member 7 or 13. The transducers are piezoelectric " twisters " or are of electromagnetic type.
Patent GB-738259-A (GB)
Title: Improvements in or relating to resistance welding apparatus
Inventor: COOKE FRANK ARTHUR
IPC: B23K11/10
Filed: 1952-12-18
Abstract: 738,259. Welding by pressure. ROLLSROYCE, Ltd. Dec. 18, 1952, No. 26799/54. Divided out of 738,154. Class 83 (4). In a stitch welding apparatus comprising roller electrodes, a piston and cylinder device to apply pressure therebetween and an indexing ratchet mechanism to partake alternately of an idle travel and an indexing travel in the opposite sense to effect step by step rotation of at least one electrode, there is provided a motor-driven eccentric connected to operate the ratchet through a lost motion connection and a rotatable contact element driven by the motor to control welding current, the eccentric and the contact element being arranged so that indexing takes place after cut-off of the welding current. In an embodiment an arm 13, Fig. 1, supports a cylinder 30 having a piston 31 whose rod carries an upper electrode 14. The lower electrode 12 is secured to a sleeve 15 rotatable in an arm 11 and carrying a ratchet wheel 16 around which a spider 17 carrying pawls 18 is rotatably mounted. An arm on the spider is connected to a rod 90 which through a lost motion connection 91 is connected to a rod 89 on a boss 88 engaging an eccentric pin 82 rotatable on a disc 81. A spring 92 urges the spider in its idle travel which is complete when a stop 93 is reached. Contacts are bridged by a strip 86 on the disc to operate the welding control unit. The upper side 34 of the piston 31 is permanently connected via a pipe 35 to a fluid pressure of 30 lb./inch<SP>2</SP>. The lower side 36 may be connected to a fluid pressure of 80 lb./inch<SP>2</SP> or to atmosphere. A pipe 69 from the 30 lb./inch<SP>2</SP> source is connected to the small area end of a valve 63, Fig. 3, and in the position shown, the welding position, the lower side of the piston is connected to atmosphere via a pipe 60 and a space 61 to a pipe 64. A hand valve 72 may connect the large area side of the valve to atmosphere through a restrictor 74 or to the 80 lb./inch<SP>2</SP> source to raise the valve 63 and hence allow the high-pressure fluid to the lower side of the piston to raise it and the electrode 14. Point A on Fig. 4 corresponds to bridging the contacts by the strip 86 when welding current supply is initiated. The supply is cut off at B by a control unit. Welding pressure is maintained throughout the cycle and forging occurs from B to D. At C the contacts are opened to reset the control unit and from D to A indexing of electrode 12 occurs.
Patent GB-503758-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: G08C19/12
Filed: 1937-10-04
Abstract: 503,758. Thermionic valve. relay circuits. GENERAL ELECTRIC CO., Ltd., and WESTELL, E. P. L. Oct. 4, 1937, No. 26801. [Class 40 (v)] [Also in Group XXXVIII] A relay 13 is operated by a signal of particular frequency but does not operate if any additional signal of different frequency is present. The relay has two windings energized by the anode current of a cumulative-grid rectifier 10 and by rectified signal currents respectively. The circuit 12 is tuned to signal frequency so that only signal currents are rectified at 14 to energize the associated .winding. The rectifying valve 10 is biassed so that the grid becomes positive and rectification takes place only when signals additional to the correct signals are received. The reduction of anode current consequent upon rectification causes falure of relay 13 tb operate.
Patent GB-389859-A (GB)
Title: Improvements in or relating to lead covered electric cables
IPC: H01B9/00
Filed: 1931-09-25
Abstract: 389,859. Cables. TELEFONAKTIEBOLAGETL. M. ERICSSON, 33, Kungsgatan, Stockholm. Sept. 25, 1931, No. 26806. Convention date, May 2. [Class 36.] A lead-covered rubber-insulated cable 1 is provided with a flat multi-stranded earth or protective wire 7, such as a braided ribbon or flat braided tube, disposed between the lead cover 6 and the cable insulation 5.
Patent GB-1260601-A (GB)
Title: Uv lamp
IPC: A61N5/06
Filed: 1970-06-04
Abstract: 1,260,601. Ultra-violet treatment. PHILIPS GLOEILAMPENFABRIEKEN N.V. 4 June, 1970 [7 June, 1969], No. 27013/70. Heading A5R. [Also in Division F4]  A u.v. lamp for irradiating the human body comprises a u.v. source 9, e.g. a high pressure mercury vapour discharge tube, surrounded by a pair of axially movable screens 15, 17 made of glass which is substantially opaque to u.v.B and u.v.C radiation, the radiation dose being regulated by separating the screens for a constant period of time, e.g. five minutes, but varying the distance of separation to change the intensity of the beam. Mechanical means are described whereby the appropriate dose for each day of a course of treatment can be selected automatically by using a dial 23.
Patent GB-842360-A (GB)
Title: Improvements in or relating to swash-plate pumps
IPC: F04B1/14
Filed: 1956-09-04
Abstract: 842,360. Swash plate pumps. RECHERCHES ETUDES PRODUCTION R. E. P. Sept. 4, 1956 [Sept. 5, 1955], No. 27041/56. Class 102(1). In a swash-plate pump the pistons 9 are connected to a non-rotating plate 20 by connecting rods 22 having spherical ends fitting into shoes attached to the piston 9 and plate 20. The plate 20 is prevented from rotating by two rods 29 fixed at one end to a boss 28 on the plate and at the other end to spring loaded pistons housed in cylinders 32. Oscillation of the plate 20 is caused by rotating of a swashplate 15, mounted on driving shaft 14, having a surface 17 inclined to the axis of rotation and a surface 16 at right angles to the axis of rotation bearing against a surface of the housing 3. Liquid entering through inlet 4 to the chamber 5 is drawn through ports 8 in the cylinder walls and pumped past non-return valves 10 to the passage 11 and delivered through outlet 6. The connecting rod 22 has a central bore 42 which allows a small quantity of liquid to pass to recess 44 of the shoe 21 on the compression stroke of the piston. This liquid passes through conduits 45, between the surface 16 and the surface of ring 46, fixed to the housing wall 3, through concentric grooves 47, 48 and the circular groove 49 to the chamber 50 where it passes through outlet 51 and is returned to the reservoir. This liquid provides adequate lubrication of the parts and reduces the frictional forces between the surfaces. Specification 842,361 is referred to.
Patent GB-700684-A (GB)
Title: Improvements in or relating to electric fans
IPC: F04D25/02
Filed: 1950-11-06
Abstract: 700,684. Screw fans. GENERAL ELECTRIC CO., Ltd., and CURTIS, T. J. Oct. 30, 1951 [Nov. 6, 1950], No. 27076/50. Class 110 (1) [Also in Groups XXIV and XXXV] The rotatable, bladecarrying part of a fan is driven by a plurality of electric motors coupled thereto. Two motors 33 are pivotally mounted on a central, non-rotating member 26. Each motor is provided with a knurled driving wheel 40 and is urged to move about its pivot by a spring 34, thereby to maintain the driving wheels in resilient engagement with the rubber tyred rim 41 of a large diameter pulley 42 secured to a casing 16 which encloses the motors and carries the fan blades 50. The member 26 is secured to the lower end of a spindle 14 journalled in a porous bronze bush 21 secured to the casing. The bush is lubricated through passages 22 from an oil reservoir filled with absorbent material 23. A ball thrust bearing 25 is interposed between the casing and the member 26. Each motor spindle 38 runs in a bush 39, and between the latter and the respective driving wheel is interposed a thrust bearing 50 constituted by horn fibre and planished washers. A bush 13 secured to the upper end of the spindle 14 is connected by plates 12 to a bush 11 secured to a suspension rod. The plates support terminals 44 for electric leads 43 which pass through a bore in the spindle 14. The blades may be of flexible or resilient material, and may be caused to assume the desired shape by centrifugal or other force acting thereon during operation. The motors may be arranged to run at a speed four to ten times greater than the speed of the casing.
Patent GB-223744-A (GB)
Title: Improvements in or relating to floor cushions
IPC: A47C3/16
Filed: 1923-10-29
Abstract: 223,744. Stutely, Ltd., and Stutely, F. A. Oct. 29, 1923. Seats combined with receptacles; frames.- A floor cushion comprises a box portion having a rigid skeleton framework 1 - - 9 covered on the top, bottom and sides with fabric, a vertically hinged door 11 being provided, and the top of the box portion being adapted to support a cushion. An outer decorative cover 18 may be provided, stuffing material being placed between this and the under fabric cover. The cushion portion may be a simple stuffed cushion 22 or may contain upholstery springs.
Patent GB-1014449-A (GB)
Title: An improved cooling device for a continuous casting wheel
IPC: B22D11/06
Filed: 1964-07-01
Abstract: 1,014,449. Continuous casting-machines. I. PROPERZI. July 1, 1964 [July 13, 1963], No. 27211/64. Heading B3F. In a wheel-type continuous casting machine, the interior of the grooved ring is cooled by groups of jets of water adjustable independently of one another for variation of the cooling. Other adjustable jets cool the endless belt which closes the groove.
Patent GB-1202913-A (GB)
Title: Improvements relating to landing gear for semi-trailer vehicles
Inventor: WALLACE WILLIAM
IPC: B60S9/10
Filed: 1967-06-13
Abstract: 1,202,913. Semi-trailer landing gear. MILLSHAW HYDRAULICS Ltd. 3 Sept., 1968 [13 June, 1967], No.27218/67. Heading B7J. A semi-trailer landing gear in which each support leg 1 is operated by means of a ram and cylinder device connected through a threeposition control valve 7 to an oil reservoir 9 and associated hand pump 8, the oil reservoir being in combination with an air accumulator 10 which stores pressurized air and transmits pressure to the oil by means of a rolling diaphragm 11. The landing gear and operating system are arranged such that on movement of the valve 7 to the " lower " position, the leg 1 is lowered automatically due to air pressure acting on the oil, until wheels 3 on the leg 1 touch the ground, whereupon further pressure to raise the trailer may be applied by means of the hand pump 8. The leg 1 is raised by switching the valve 7 to the " raise " position and operating the hand pump 8.
Patent GB-976114-A (GB)
Title: Self priming centrifugal pump
IPC: F04D29/02
Filed: 1962-07-16
Abstract: 976,114. Centrifugal pumps. BELL & GOSSETT CO. July 16, 1962 [July 20, 1961], No. 27228/62. Heading F1C. A self priming centrifugal pump having an impeller 22 supported about a substantially horizontal axis in a casing 10 which defines a main chamber 21 for a reserve of liquid in which the impeller 22 is rotatable, an inlet 12 communicating centrally with the impeller and an outlet 11, and a number of vanes 31-37 spaced about the periphery of the impeller and spiraling forwardly in the direction of impeller rotation and outwardly to define discharge flow passages communicating between the main chamber 21 and the periphery of the impeller, is characterized in that at least one vane with its inner edge originating adjacent the lower downward sweep region of the impeller periphery has its inner end located in such position relative to an outer end portion of an adjacent preceding vane to provide therebetween a reverse flow path from the main chamber 21 to the impeller periphery that is shorter and more direct than any reverse flow path associated with vanes having inner end portions originating adjacent the other regions swept by the impeller periphery. Vanes 31, 32, of a fixed diffuser 30 having preferably uniformly arranged vanes 31-37, are shortened to establish radial flow paths 31A, 32A near the bottom of chamber 21 where a substantially maximum head of reserve liquid acts to establish a high pressure differential and thereby create a reverse radial flow of air free liquid from the chamber 21 to the periphery of the impeller 22. The turbulence thereby created in this region mixes air with the liquid to form a foamy mixture from which air bubbles are peeled off, principally at the inner edges of vanes 33 and 34, and are discharged upwardly to prime the pump by the momentum induced by the impeller and their inherent buoyancy. Long reverse flow passages exist between vanes 35, 36 and 37, which have inner edges close to the impeller periphery, so that an hydraulic seal is maintained between the high pressure air within the pump chamber 21 and the low pressure air within the impeller 22, thereby eliminating the likelihood of creating a vortex of air. Since the vane 33 is closely adjacent the lower downward sweep region of the impeller periphery it may likewise have a portion of its inner end eliminated. In two alternative embodiments (not shown), having a diffuser with four and five vanes respectively, only one vane in each diffuser is shortened and the angle of the vanes with respect to the impeller periphery is so small that the inner end of the shortened vane still remains closely adjacent the impeller. The resulting reverse flow path, in the case of the four vane diffuser, is radial but, in the case of the five vane diffuser, it is only substantially radial. Specifications 546,541 and 691,362 are referred to.
Patent GB-608866-A (GB)
Title: Apparatus for treating muscles and other deeply lying tissures in the human or animal body
IPC: A61H9/00
Filed: 1945-10-18
Abstract: 608,866. Suction massage apparatus. SM ITH, J. A. Oct. 18, 1945, No. 27391. Convention date, Feb. 22, 1943. [Class 81(ii)] Apparatus for producing reduced pressures in limited spaces on the body includes means for alternately and successively producing two reduced pressures of predetermined duration, and means for independently adjusting the pressures. In Fig. 2, a vacuum source 18 is connected to a reducing valve 22, maintaining a pressure of 0.4 atmospheres in conduits 20, and also to a reducing valve 24 connected to a cup 14 through conduit 28 provided with a throttle aperture 29. By means of cam 32, which may be continuously rotatable, or be provided with a manually or mechanically operated lever 30, valve 24 is alternately adjusted to give the successive different reduced pressures within the cup. In Fig. 3, the vacuum source 34 is connected to valve 38 (corresponding to valve 22 above), and to two further pressure reducing valves 40, 42, adjusted each to a different pressure, and connected via throttle valves 56, to a three way cock 48 connected to a distributor 52 serving one or more cups. The cups may thus be connected alternately with valves 40, 42, throttle valves 56 being adjusted to give the desired transition periods from one pressure to the other. Cock 48 is operated by lever 66, and motor driven cam 62, the lever 66 serving to operate switch 68 controlling parallel current branches 70, 72 of the motor circuit, each branch containing an adjustable resistance 74, 76 whereby the speed of the motor is varied. Pressure gauges 78, and filters 80 are indicated. Reference is also made to an arrangement wherein a piston type vacuum pump is connected to the vacuum cup.
Patent GB-640472-A (GB)
Title: Improvements relating to the mounting of wheels on the axles of perambulators and other like axles
IPC: B60B37/10
Filed: 1947-10-14
Abstract: 640,472. Vehicle wheels. HUGHES, Ltd., G. H., and DUGGAN, L. A. Oct. 14, 1947, No. 27476. [Class 144 (i)] Wheel-mounting for perambulators and like vehicles comprises washers 7 fitted over the cylindrical axle-arm 5a and prevented from rotation by the engagement of flanges 7b with the flat faces of the square axle 5 and a pin 8 by which the wheel is secured.
Patent GB-1108554-A (GB)
Title: Improvements in hydraulic reciprocating pumps and motors
Inventor: RANKIN JOHN
IPC: F04B1/20
Filed: 1964-07-03
Abstract: 1,108,554. Reciprocating pumps and motors. DOWTY TECHNICAL DEVELOPMENTS Ltd. June 28, 1965 [July 3, 1964], No.27481/64. Heading, F1A. In a reversible revolving cylinder block pump or motor the cylinder ports 9 have auxiliary ports 11 which pass over an auxiliary port or ports 7, 8 in the face valve 1 communicating with the appropriate main port 3, 4 to adjust the pressure in a cylinder towards that in the port with which it is about to communicate during the periods when the cylinder is passing over a bridge portion 5 or 6 and out of communication with the main ports. The auxiliary ports 7 and 8 are connected to both main ports 3 and 4 via non- return valves arranged to provide connection with the appropriate main port. A shuttle valve may connect the high-pressure auxiliary port to the high-pressure main port. The face valve may be fixed and the cylinder block arranged for axial and tilting movement or vice versa. A ball or roller bearing may be provided between the cylinder block and face valve. The pump or motor may be of the axial cylinder tilting head type.
Patent GB-1422505-A (GB)
Title: L-histidine
IPC: C07D233/64
Filed: 1974-06-15
Abstract: 1422505 L-Histidine TANABE SEIYAKU CO Ltd 15 June 1974 [18 June 1973] 27491/74 Heading C2C A process for preparing L-histidine comprises cultivating a L-histidine ammonia-lyase-lacking and 2-methyl-histidine-resistant mutant of Serratia marcescens in an aqueous nutrient medium under aerobic conditions preferably at pH 6 to 9 to produce a fermentation broth, and recovering accumulated L-histidine from the fermentation broth.
Patent GB-690094-A (GB)
Title: Improvements in or relating to methods of producing photographic developed images consisting of metal
IPC: G03C1/62
Filed: 1948-10-22
Abstract: 690,094. Physical development processes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 22, 1948 [Oct. 27, 1947], No. 27502/48. Class 98 (ii). Metal images are produced by physical development of exposed sheet material by piling it in a bath containing a stabilized physical developer, i.e. one having a keeping time of longer than 15 minutes, containing not more than twice the quantity of metal sufficient to fully develop the exposed material placed in it. If the support of the photographic material readily absorbs the developer the pile of sheets may be placed in it as a whole but if it does not the pile is either built up in the developer or a wetting agent is introduced into the developer. To hasten development the top sheet of the pile may be illuminated with infra-red and then removed so as to permit illumination of the next sheet. The physical developers used are stabilized by acidifying to a pH less than 1, cooling to below 10 C., or dilution so that the concentration of the reducing agent is not more than 0.01 gram-molecule per litre. For example a pile of exposed regenerated cellulose or unsized paper sheets sensitized with 1-hydroxy 2-diazonium 6-methyl benzene 4-sulphonic acid, mercurous nitrate and nitric acid are placed as a whole in a metol-tartaric acid-silver nitrate developer stabilized by dilution, a metol-silver nitrate developer stabilized with nitric acid, or a hydroquinone-tartaric acid-silver nitrate developer, to which glycerol is added to prevent freezing, cooled to below - 3  C. The developers stabilized with acid or by cooling may contain excess reducing agent and may be regenerated by addition of silver nitrate, while those stabilized by dilution contain less than 0.01 gram molecules per litre of reducing agent. Specifications 253,380, [Class 98 (ii)], 439,005, and 545,901 are referred to.
Patent GB-646333-A (GB)
Title: Improvements in or relating to toys
IPC: A63H13/16
Filed: 1948-10-22
Abstract: 646,333. Surprise toys. NOMA ELECTRIC CO., Ltd., and KUBLIN, W. W. Oct. 22, 1948, No. 27550. [Class 132 (iii)] In a jack-in-box the lid 2 of the box 1 has one or more associated or, preferably, integral lugs 3 which are adapted, when the lid is open, to limit the upward movement of the jack and, during closing of the lid, to depress the jack towards its original position. The jack is formed on or fast with a spring-pressed platform 7 which has opposed guideways 9 to co-operate with ribs, not shown, on the side panels of the box and the upper surface of which has recesses 11 to mate with the lugs 3. A back portion 4 of the lid 2 has integral pivotal-mounting pins 6, and the front panel of the box and the lid are formed with co-operating latch means 12, 13 adapted to be released when the side panels are pressed inwardly.
Patent GB-170309-A (GB)
Title: Improvements in and relating to the bodies of motor vehicles
IPC: B62D35/00
Filed: 1920-07-16
Abstract: 170,309. Rumpler, E. May 17, 1920, [Convention date]. Addition to 149,298. Drawings to Specification. Exhaust, disposing of.-Relates to a streamlined body for a motor vehicle as described in the parent Specification. The Specification as open to inspection under Sect. 91 (3) (a) comprises an arrangement in which the exhaust silencer is mounted inside the rear portion of the body and discharges into the vacuum at the rear created by the motion of the vehicle. This subject-matter does not appear in the Specification as accepted.
Patent GB-1235731-A (GB)
Title: Improved process for flocculating and thickening
Inventor: BLOTTNITZ LENNART JOHANNES BLO
IPC: C02F1/52
Filed: 1968-06-11
Abstract: 1,235,731. Settling. tank. AMERICAN CYANAMID CO. 11 June, 1968 [11 July, 1967], No. 27685/68. Heading B1D. [Also in Division C1] A settling tank for settling suspensions, is a modified cross type deep well thickener and has a deep well 4, which is not slotted as in the unmodified cross thickener, but is lowered so that the top of the well is just below the liquid surface in the tank. Dilute flocculating agent solution enters the thickener via a drilled ring pipe 8, around the top of the well 4. The suspension to be flocculated enters the thickener via a pipe into a small well 7 attached to the central shaft 5.