baber/WOPTO huggingface dataset:
Patent GB-376700-A (GB)
Title: Apparatus for cleaning by water pressure
IPC: A47L13/23
Filed: 1932-05-13
Abstract: 376,700. Cleaning floors, walls, &c. ; ; reservoir brushes. LARUE, E., 14, Fleurettes, Lausanne, Vaud, Switzerland. May 13, 1932, No. 13801. Convention date, May 21, 1931. [Classes 19 and 138 (i).] A hydraulic cleaning device for small places such as pavements, windows, walls, and the like comprises a reservoir brush mounted on wheels 2, Figs. 1 and 2, and provided with a bent steel tube 20 with hose connection 5 and orifices 6 to spray water in an oblique forward direction towards the ground. The underside rear part of the tube has brushes 3 to dislodge dirt. The centre part of the apparatus consists of a detachable reservoir 9, Fig. 5, with an eccentric part 10 for purposes of attachment to the tube part 20. The reservoir 9 is threaded at 14 to carry a brush or pad 15.
Patent GB-253347-A (GB)
Title: Improvements in or relating to circular saw machines or the like
IPC: B27B5/26
Filed: 1925-05-27
Abstract: 253,347. Tagg, W. May 27, 1925. Circular-saw machines. - The table f is mounted at the top of a sleeve e which slides over a cylindrical column a carrying the saw spindle in a phosphor bronze sleeve b. A squared part b<2> on the sleeve b prevents the sleeve c from turning on the column as it is raised or lowered by a hand-wheel h. The raw spindle is lubricated by rings c dipping into an oil chamber a'. A clamping wheel (not shown) for the sleeve e is provided.
Patent GB-1055766-A (GB)
Title: Method of and apparatus for etching
IPC: C23F1/02
Filed: 1964-04-03
Abstract: <PICT:1055766/C6-C7/1> Apparatus for directing an etchant, such as an iron perchloride solution, in the form of a flat jet against a surface to be etched wherein the etchant is ultrasonically agitated, comprises an etchant tank 1 provided with heating and cooling means 2 and 3 respectively to control the temperature of the etchant, a pump 4, a ceramic nozzle 6 with a slit orifice, and an ultrasonic vibrator 8.  The workpiece 7 is suspended in a frame 9 and traversed by chains 10 across the orifice of the nozzle 6.  The etchant, having been directed vertically upwards against the workpiece, falls back and is collected to be returned to the tank 1 via the conduits 11.
Patent GB-1509984-A (GB)
Title: Arc lamp including an electrode with recessed contact are
IPC: H05B31/14
Filed: 1976-04-06
Abstract: 1509984 Discharge lamps VARIAN ASSOCIATES Inc 6 April 1976 [10 April 1975] 13879/76 Heading H1D In a movable-electrode arc lamp, particularly of the type disclosed in patent 1,461,448, in which disposed opposite a cathode 30 having an apex at its end portion 31 is a further electrode, as shown an anode 40, which has a recess 41 at its end, when the electrodes 30, 40 are caused to contact, Fig. 3, the cathode apex is received into the anode recess 41 such that no part of the apex is in contact sith the anode. This arrangement ensures that each time the arc lamp is started by first bringing the electrodes 30, 40 into contact, by energizing the solenoid 51 that moves the armature 53 attached to the anode 40; and then separating the electrodes, the cathode apex at the end of conical cathode tip 31 does not get damaged. In an alternative embodiment, Fig. 2 (not shown), the movable electrode is a so-called stinger electrode (40<1>) which is disposed coaxially within a fixed anode (60) and which is used solely for starting the lamp.
Patent GB-547730-A (GB)
Title: An improved method of segregating and concentrating butadiene from mixtures of gases
IPC: C07C7/11
Filed: 1940-09-06
Abstract: 547,730. Concentrating butadiene. STANDARD OIL DEVELOPMENT CO. Sept. 6, 1940, No. 13938. Convention date, Oct. 31, 1939. Drawings to Specification. [Class 2 (iii)] The known method of concentrating butadiene by absorption in cuprous chloride solution followed by regeneration of the absorbed butadiene is followed by a second similar absorbtion and regeneration step, in order to obtain a product of a high degree of purity. An apparatus is described in which the operations are performed.
Patent GB-1077647-A (GB)
Title: Improvements in or relating to a building for housing and feeding livestock
Inventor: HUEY JAMES
IPC: A01K1/00
Filed: 1966-03-29
Abstract: 1,077,647. Housing livestock. HUEY & CO. Ltd. March 29, 1966, No. 13953/66. Heading A1M. A building for housing livestock comprises a base 10 divided into an exercising section 13 and a section 14 for stalls 15, the sections being connected by a path 16, and the base 10 sloping towards a central channel 11 into which excrement is moved mechanically or by means of water. A feeding trough is located over channel 11 and is supplied with feed by an overhead auger 28 located in an apertured casing 29. The base 10 has surrounding walls 9 which support elements defining a roof the apex and eaves of which are open.
Patent GB-354315-A (GB)
Title: Improvements in or relating to hand-tools for removing or stripping paints, varnishes, enamels and like coatings or coverings from surfaces
IPC: B44D3/16
Filed: 1930-05-07
Abstract: 354,315. Scrapers. MOORE, J. S., 5, Eastman Road, West Derby, and HUCKFIELD, C. T., 51, Springwood Avenue, Allerton, both in Liverpool. May 7, 1930, No. 13990. [Class 61 (ii).] A hand tool for stripping paints and like coatings carries electric heating elements which soften the paint and heat a scraper blade. A base 3, to which is screwed the blade 1, carries a hood-like member 5 having a boss 12 cast on it; the electric rod heating elements 71, 7<2>, 73 are held in a removable manner by conductor springs 8<1>, 8<2>, 8<3> secured to the back of a sheet of non-conducting material 9 by terminal screws 10, the whole being fastened to the boss 12 by a screw 11, cheek plates 6 having lugs 14 to position a sheet of asbestos 13, complete the housing for the heating elements. A handle 15 provided with a metal tube to carry the leads is connected to the casing by spacing rods 16 and plate 17 having a hexagonal boss which fits an enlargement in the bore of the handle ; a switch 27 and also a rheostat (not shown) may be provided to control the heating elements. A guard 28 is provided to prevent paint reaching the heating rods, and as a further precaution against this, a wire mesh screen 29, Fig. 4 (not shown), may be included. Instead of the arrangement of heating elements shown, a modification may be made so that the radiant heat is projected immediately in front of the blade without heating the blade itself.
Patent GB-666561-A (GB)
Title: Improvements relating to the control of electrically operated winding or like mechanisms
IPC: H02P3/24
Filed: 1948-05-24
Abstract: 666,561. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., LIDDIARD, H. W. C., PETCH, T. H., and ROLFE, E. May 24, 1949. [May 24, 1948] No. 13991/48. Class 38 (iii). An induction motor driving winding or the like mechanism has a control system for providing a dynamic braking effect comprising means for connecting the primary of the motor to a source of direct-current, the voltage of which is made to vary in such a way that it causes the voltage generated in the secondary winding of the motor to be directly proportional to the frequency of .the current flowing in the aforesaid secondary winding, so that the torque is maintained substantially proportional to speed throughout the entire speed-range. The source of direct-current is an amplidyne generator A having a field winding F1 excited through rectifier B1 and saturable reactor SR, and a field winding F2, oppositely excited through rectifier B2 and resistor R2, both field windings being energized from the secondary circuit of the induction motor IM. A third field winding F3 of the amplidyne has constant excitation and is boosted by the winding F2. The element SR saturates at different frequencies of the applied voltage so that the excitation of the winding F1 depends upon the frequency of the rotor current of the induction motor. If the rotor voltage of the induction motor increases, the frequency remaining constant, the current rise in F1 is greater than in F2 thereby increasing the bucking effect and restoring the rotor voltage to its former value. A change 'of frequency alters the excitation of winding F1, the rotor voltage and that across winding F2 being forced to correspond so that the rotor voltage is varied in accordance with the rotor frequency. A stabilising transformer T may be connected to feed back into the circuit of the winding F3. The excitation of the field windings F1, F2, may be, in addition, responsive to the secondary current of the motor IM, a current transformer being connected in the secondary circuit and developing an appropriate voltage across a resistor in the circuit of the windings, Fig. 2 (not shown). The generator A may be replaced by a system of saturable reactors and rectifiers, Fig. 3 (not shown). Specifications 535,016 and 535,732 are referred to.
Patent GB-475502-A (GB)
Title: Improved variable speed power-transmitting device
IPC: F16H1/32
Filed: 1936-05-18
Abstract: 475,502. Variable - speed planetary gearing. LA BARRE DE NANTEUIL, C. DE. May 18, 1936, No. 14034. Convention date, May 21, 1935. [Class 80 (ii)] A planetary train yields a continuous speed variation when an eccentrically wabbling boss 20 is braked by applying a brake 25 to an annulus 21 journalled at 22 concentrically on a driving- shaft 1 and having an eccentric surface 191 transmitting the braking to the boss 20. The boss 20 is integral with a gear cluster 15a, 17 which turns loosely upon an eccentric 18 rigid with the loose carrier 9 of triple planet gears 4, 10, 14 and 5, 11, 15. The gears 4, 5 mesh with a driving sun pinion 2. The gears 10, 11 are equal and mesh with a sun gear 12 fast on a driven sleeve 13. The gears 14, 15 mesh with the gears 15a and 17 and are such that these gearing pairs are equal in ratio. The result is that if the shaft 13 be imagined stationary, the cluster 15a, 17 would wabble round without rotating on its own axis, a characteristic proportioning. In a modified gear train, the driven element is a planet carrier which is connected by drag links to the eccentric boss which wabbles inside the braked eccentric ring.
Patent GB-329813-A (GB)
Title: Improvements in tire valve
IPC: F16K15/20
Filed: 1929-05-06
Abstract: 329,813. Copithorn, W. E., and Harris, L. H. May 6, 1929. Tyre and like inflating valves.-A tyre valve has a conical metal valve seat 6 clamped against an internal shoulder 5 on the valve casing 1 by a clamping sleeve 8 screwed to the casing at 9 and has a valve member 12 recessed to house a resilient washer 14 adapted to engage the end of the seat and flared at 15 to engage the tapered part of the seat to give a second closure and prevent undue distortion of the resilient washer. The valve spindle 16 is provided with a fluted square shoulder 18 engaging the square bore of the sleeve 8 and with a screwed part 17 adapted to be engaged by a screwed socket 24 on the cap 21. The cap has a recess 22 fitted with a washer 23 to engage the end of the casing when the valve is screwed down after inflation and has a screwed recess 26 to screw onto the casing and a screwed nipple to receive the inflating pump during inflation. The cap may be fitted with a boss to receive a wrench.
Patent GB-620589-A (GB)
Title: Improvements in and relating to radio beacons for aircraft
IPC: G01S1/02
Filed: 1946-05-10
Abstract: 620,589. Radio navigation. GENERAL ELECTRIC CO., Ltd., and STENNING, L. C. May 10, 1946, Nos. 14168/46 and 7020/47. [Class 40 (vii)] In order that aircraft may be able to maintain equal spacing when circling an airfield prior to landing, a radio beacon is arranged to transmit radio-frequency oscillations such that there is produced, at each of a plurality of equally spaced angular positions, a different identifiable electrical characteristic, means being provided to cause the positions to rotate around the beacon at a uniform speed. In the first embodiment, Fig. 2, the beacon 10 comprises a fixed aerial having a polar diagram of radiation 15, the energy supplied to the aerial being so phased that the diagram 15 rotates at a constant rate of 30 r.p.s. Thus, an observer at a point 17 receives a signal amplitude modulated at 30 c/s. Also radiated from the beacon is a signal modulated at a frequency F, very close to 30 c/s. (or'to a multiple or sub-multiple thereof), the manner of modulation being such that it may be separated from the modulation due to rotation of the pattern 15. Thus, the radio frequencies of the two signals may be the same, the second transmission being amplitude modulated at 10 kc/s., the 10 kc/s. modulation being itself frequency modulated at the frequency F. The composite signal received by an aircraft is separated into two channels wherein the modulations of 30 c/s. and F are separately extracted and applied to a phase meter. The aircraft is allotted a position around the airfield corresponding to a certain phase angle and since the two extracted signals are not exactly synchronized this position rotates slowly about the beacon so that the aircraft is maintained on a circular course about the airfield. In the second embodiment, Fig. 6, a plurality of separate tubes 37 are transmitted from the beacon 10, each tube being differently characterised, e.g. by an appropriate Morse letter which it radiates. The aerial system rotates slowly, the radiation pattern rotating with it. So that the positions may be located more accurately each lobe comprises a pair of overlapping beams of the dot-dash. type. A radar system having a P.P.I. display is also located at the beacon, a bearing indicator having a suitable number of equally spaced radial arms being arranged to rotate on the screen of the cathode-ray tube once per complete revolution of the identifiable characteristic so that indications corresponding to aircraft should remain fixed relative to the radial arms. For the determination in the aircraft of distance from the beacon, a responder may be provided at the beacon for co-operation with a radar system carried by the aircraft.
Patent GB-963226-A (GB)
Title: Thermostatically controlled mixing valve
IPC: G05D23/13
Filed: 1961-04-20
Abstract: 963,226. Temperature-responsive actuating- elements. F. GROKE. April 20, 1961 [May 11, 1960], No. 14258/61. Addition to 903,539. Heading G1D. [Also in Division F2] A thermostatically controlled mixing valve for hot and cold liquids (see Division F2), has a temperature-sensitive element consisting of a stacked series of bimetallic disc springs 17 the centres of which are suitably apertured so as to accommodate the water flow control spindle 15. The compression of the stack is adjustable by a temperature-setting knob 20 co-operating with a graduated ring 22.
Patent GB-860970-A (GB)
Title: A device for guiding the weft through the shed in shuttleless weaving looms
IPC: D03D47/00
Filed: 1958-05-05
Abstract: 860,970. Jet looms. SVATY, V., and LIBANSKY, J. May 5, 1958, No. 14263/58. Class 142(2) A weft guide for looms in which picking is effected by a jet of air consists of a comb having teeth 16 shaped to surround the path of the weft. The aperture 20 in each tooth is tapered, being smaller at the side from which the air emerges to reduce loss of air from the jet. Some of the teeth may be of tubular construction with holes around the aperture 20 through which additional air is supplied to maintain the jet. The comb is mounted on the slay in front of the reed and emerges from the underside of the warp at beat-up, a slot 21 enabling it to clear the weft. The comb may be shogged between picks so as to penetrate the warp at different places to obviate cracks in the fabric.
Patent GB-934526-A (GB)
Title: Antibiotic production
Inventor: RHODES ALAN
Filed: 1960-04-22
Abstract: Griseofulvin is produced under submerged aerobic conditions by a process which includes the step of culturing a griseofulvin producing organism in a culture medium therefor, the medium including a source of carbon and energy, a primary source of assimilable nitrogen and a further substance which is capable of effecting the introduction of methyl groups whereby the rate of accretion of griseofulvin in the culture is increased.  This further substance may be choline or an ester or salt thereof, betaine, methionine, sarcosine, dimethylthetin, methylxanthate, a formaldehyde-bisulphite complex, glyoxylic acid, xanthine, L-histidine, L-serine, folic acid, di- or tetra-hydrofolic acid, amino-ethanol or mono- or di-methylamino-ethanol.  Specifications 784,618 and 868,958 are referred to.
Patent GB-1435889-A (GB)
Title: Currentless surface metallization of plastics articles
IPC: C23C18/28
Filed: 1975-04-08
Abstract: 1435889 Electroless plating of plastics LANGBEIN-PFANHAUSER WERKE AG 8 April 1975 [18 April 1974] 14295/75  Heading C7F In the electroless plating of plastics, e.g. a.b.s. with e.g. Cu or Ni, the plastics surface is first etched with e.g. a mixture of chromic and sulphuric acids and then contacted with a bath comprising a salt of Au or a Pt group metal, gum arabic or gelatine, and a carboxylic acid of the poly basic olefine type, e.g. tartaric, citric, fumaric, maleic acids. The bath may also include H 2 SO 4  or HCl. In one of the examples the bath contains (g.11.) 0-1 to 20 gelatine, 1 to 50 tartaric, 1 to 5H 2 SO 4 , 0À1 to 5 palladium sulphate, and 1 to 20 maleic acid.
Patent GB-713260-A (GB)
Title: Apparatus for trimming moulding spew from tyre covers
Inventor: HOLROYD ERIC
IPC: B29C37/02
Filed: 1951-06-16
Abstract: 713,260. Operating clutches. DUNLOP RUBBER CO., Ltd June 3, 1952 [June 16, 1951], No. 14315/51. Class 80 (2) [Also in Group V] In a rotary-key clutch (shown in exploded form in Fig. 6) the radially-movable key 47 is normally engaged by a key-activating member 46 supported in an axiallymovable housing 45. To release the key handle 55 is turned and acts through levers 56, 51 and links 53 to withdraw the member 46. The key thereupon engages an internal tooth of the revolving clutch member 44 thus causing the shaft 41 to revolve. The member 46 is held in the withdrawn position by means of a pivoted catch 59 which is released after a fraction of a revolution by means of a cam 43 mounted on the shaft 41 and allows the member 46 to return. After a complete revolution has been performed the key 47 re-engages the member 46 and is disengaged from the toothed member 44. Specification 711,055, [Group V]. is referred to.
Patent GB-757208-A (GB)
Title: Improvements relating to devices for the injection of fluid
Inventor: HARTLEY GILBERT SPENCER
IPC: A01G29/00
Filed: 1953-05-21
Abstract: 757,208. Soil-injectors. FISONS PEST CONTROL, Ltd., [formerly PEST CONTROL, Ltd.]. May 21, 1954 [May 21, 1953], No. 14322/53. Class 6 (2). [Also in Groups XXVIII and XXIX] Apparatus for injecting fluids, e.g., into soil, comprises a flexible chamber 1, in the form of a bellows or diaphragm, to the upper end of which is attached an operating handle 7, an inlet pipe 4 and an outlet pipe 2 terminating in a stem 3; a stay 6 connects the pipes 2, 4. A frame 8 is attached to the lower end of the pump chamber and has a thrust face 9 for engaging the soil when the pump is actuated. The outlet pipe passes through a member 10 attached to the frame and may be locked by a screw 11. The stroke is limited by flanges 12, 13 on the outlet pipe, the flange 13 being set in the desired position by a screw 14; the suction stroke may be assisted by the spring 15. The outside of the outlet pipe may be reduced to accommodate an elastic sleeve valve 18 controlling the ports 17. The frame 8 may be adjustable in height to determine the penetration of the stem into the soil.
Patent GB-475794-A (GB)
Title: Improvements in or relating to motion picture apparatus
IPC: G03B19/18
Filed: 1936-05-20
Abstract: 475,794. Kinematograph apparatus. KODAK, Ltd. (Kodak Akt.-Ges.) May 20, 1936, No. 14330. [Class 97 (i)] In a camera for use with a reversible magazine having a shutter or shutters to close its exposure apertures, the magazine has means so cooperating with a part carried by the camera that, during the process of loading the magazine into the camera in either of its positions, the shutter covering the exposure aperture registering with the lens is opened ; removal of the magazine may effect closure of the aperture. Fig. 3 shows a magazine D, similar to that described with reference to Fig. 1 of Specification 466,116, in which studs H, H<1> project through slots H<2> from the sliding shutter F. The door E<1> of the camera has a portion E<2> formed with a slot E<3> which, as the door is closed, engages the stud in the position Hand moves the shutter to open the exposure aperture D<1> and the claw slot D<3>. In a modification, a single stud projecting from the top wall of the magazine is similarly engaged by a slot in a portion extending from the top edge of the door. Fig. 1 shows a magazine C, the shutter stud C<6> of which, as the magazine is inserted into the camera A through a rear aperture, engages an inclined slot A<2> in a wall in the camera to open the shutter. Modifications are described in which the shutters of magazines of the types described with reference to Figs. 4 and 6 of Specification 466,116, are operated respectively by a cam slot and by cam surfaces, as the magazines are inserted laterally into the camera. The shutter and cam surfaces, in the latter case, may be such that the shutter has five positions in the magazine, and closes both exposure apertures while the position of the magazine in the camera is being reversed. According to the Provisional Specification, the magazine may have a single exposure opening, or the shutter may be rotatable one simultaneously opening both apertures of a reversible magazine.
Patent GB-1308737-A (GB)
Title: Method of extracting aromatic hydrocarbons
IPC: B01D11/04
Filed: 1971-05-11
Abstract: 1308737 Separating aromatic hydrocarbons from mixtures SOC ITALIANA RESINE SpA 11 May 1971 [12 May 1970] 14338/71 Heading C5E A hydrocarbon mixture 7 is fed to a multistage extractor 1 and a stream 8 of anhydrous ethylene diamine or of ethylene diamine containing up to 20 wt. per cent water is fed to the extractor above the entry point of the mixture 7. The extraction temperature is suitably maintained between 20 and 80 C. The extract phase 9 is passed to an extractive stripping column 2 in which non-aromatic hydrocarbons are removed as the overhead stream 11 and recycled to the extractor 1. The extractive stripping residuum 12 is azeotropically distilled at 3 to provide an overhead 13 comprising the aromatic hydrocarbons and a stream 14 comprising solvent which is recycled to the extractor 1. The overhead stream 13 is cooled to effect separation into an aqueous ethylene diamine-containing phase and an aromatic hydrocarbon-containing phase. The aromatic hydrocarbon-containing phase is scrubbed with a countercurrent of water 15 at 4 to provide an aqueous ethylene diamine-containing phase 17 and an aromatic hydrocarbon phase 16 which is then rectified. The raffinate phase 10 from the extractor 1 is treated at 6 with a countercurrent of water 20 to provide an aqueous ethylene diamine phase 22 and a solvent-free raffinate 21. The aqueous ethylene diamine streams 17 and 22 are concentrated by distillation at 5 before recycle to the extractor 1. The extractor 1 can be a perforated tray column, a packed column, or a rotating disc contactor. Water can be added to the overhead product of the azeotropic distillation at 3 to facilitate the separation into aqueous ethylene diamine and aromatic phases. Benzene can be recovered from hydrogenated reforming gasoline and benzene, toluene, and xylene can be recovered from a mixture thereof with C 6-8  non-aromatic hydrogen.