baber/WOPTO huggingface dataset:
Patent GB-368527-A (GB)
Title: Improvements in devices for cleaning screens
IPC: E02B8/02
Filed: 1931-03-17
Abstract: 368,527. Strainers. BLAKEBOROUGH, R. A. and BLAKEBOROUGH, J. B., Woodhouse Works, Brighouse, Yorkshire. March 17, 1931, No. 8119. [Class 46.] Apparatus for cleaning screens composed of parallel bars and used in connection with sewage works and in intakes to hydro-electric plants &c. comprises a pronged frame pivoted at its upper end on endless driving-chains and provided between its ends with rollers which work in guide tracks, the arrangement being such that the prongs move down to the lower end of the screen clear of the bars and then enter between the bars and move upwardly along the screen, after which they move into the paths of rotating fingers arranged to enter between the prongs and remove any debris &c.carried up by them. The endless chains h to which the upper end of the pronged frame o is attached pass round sprocket wheels e, f, j, m and along vertical guide channels i, k, the sprockets e being driven from a shaft d actuated by bevel and chain gearing from a motor t. The rollers o<2> on the frame o work in guide tracks having vertical upper parts p and inclined lower parts p<1>. By these means the prongs o<1> are caused to move in the path indicated by a broken line v. They pass between the bars of the screen a as they move upwards from their lowest position, and when near their highest position they are cleaned by rotating fingers s<1>, any debris &c. removed from them falling into a trough r in which a conveyer may be mounted. The cleaner shaft s is driven from the motor t by belt gearing. The frame o is counterbalanced by a weight w connected to it by chains passing round pulleys w<2>, w<3>, w<4>.
Patent GB-1173795-A (GB)
Title: Improvements relating to Electric Cells of Reserve Type
IPC: H01M6/32
Filed: 1967-02-22
Abstract: 1,173,795. Reserve cell. ELECTRIC STOR. AGE BATTERY CO. 22 Feb., 1967 [23 Feb., 1966], No. 8368/67. Addition to 946,306. Heading H1B. The invention comprises a reserve cell which is activated by addition of water or electrolyte, in which the positive electrode comprises an active material powder and a binder comprising a thermoplastic which is insoluble in the electrolyte and a thermoplastic which dissolves in the electrolyte and so forms pores. Active materials specified are lead chloride, cuprous chloride, mercurous chloride, cuprous oxide and cupric oxide. An electrically conductive material, e.g. copper, silver, lead, graphite or acetylene black, may also be present and can act as an active material. The insoluble binder may be polyethylene, polypropylene, polystyrene, P.V.C. or a copolymer of ethylene and vinyl acetate or butadiene and styrene. The soluble binder may be polyethylene glycol or polyvinyl pyrrolidone. A total of 10% of binder may be used. The mixture may be applied to conductive grids or placed in contact with a negative active material to give a bipolar electrode. A thicker electrode may be made by laminating several layers of material. The electrolyte may be fresh water or sea-water. In typical Example 1 the mixture is milled and rolled into sheets which are hot-pressed on to both sides of expanded nickel grids. These electrodes are then discharged against magnesium electrodes.
Patent GB-330635-A (GB)
Title: Gymnastic appliances
IPC: A63B4/00
Filed: 1929-03-14
Abstract: 330,635. Gardiner, Ltd., T. M., and Lovejoy, N. E. March 14, 1929. Disc and like plate hinges.-A plate hinge for use with gymnastic apparatus comprises a metal strap 4, bent twice at right angles, pivotally fixed at the rivet 6 to a similar strap 3 integral with a block 2. The member 5 may be locked in either of two positions by a latch 9 pivoted at 10 adapted to fall into either of the slots 11.
Patent GB-889757-A (GB)
Title: Thermal storage ducts for heating or cooling buildings
IPC: F24D13/02
Filed: 1957-03-14
Abstract: 889,757. Ventilating buildings. BRUCE, H. H. June 11, 1958 [March 14, 1957; March 27, 1957; April 10, 1957], Nos. 8434/57, 9996/57 and 11722/57. Class 137 [Also in Group XI] Beneath a constructional floor 9, 10, 11 and in a trench 1 of a building site 2 lengthwise ducts 7 are defined by spaced inverted trough floor beams 5 resting on a concrete base 3 and covered by concrete 6 and a thermal insulating layer 8, e.g. of hardcore, "no fines" concrete, or lightweight concrete. Electric heating cables 12 preferably thermostatically controlled rest on the floor of the ducts at one end of which is provided an inlet for air, the other end having an air outlet communicating with a fan and trunking which delivers the air to the space or spaces to be heated. In a further embodiment, Figs. 2 and 3, the duct 15 and an air passage 17 are defined by insulating panels 16 at the upper part of, for example, a corridor. The duct 15 is closed at its ends except for an air inlet 18 and an air outlet 19 connected to a fan 20 and has suspended within it a run of concrete 22 provided with heating cables 23 and having thermal insulation 24 at the top and sides. Cooling capacity may be provided during hot weather by the circulation of water through pipes in the ducts, or by the circulation of air over the heat storage material previously cooled at night. The heating elements may comprise hot water pipes or the like. The fan, which may be controlled by a thermostat and started and stopped at predetermined times by a time switch is preferably associated with air flow control means such as a damper controlled thermostatically or by hand.
Patent GB-774741-A (GB)
Title: Improvements in and relating to speed regulating systems for direct current motors
IPC: H02P7/26
Filed: 1955-03-23
Abstract: 774,741. Automatic speed control systems. GENERAL ELECTRIC CO. March 23,1955 [March 23, 1954], No. 8492/55. Class 38 (4). A D.C. motor is controlled for constant speed in accordance with the difference between the speedrepresentative duration of pulses continuously derived from a photo-electric unit associated with a slotted disc driven by the motor and a speed reference period provided by the characteristic frequency of an oscillating circuit. The light beam directed on to a photo-electric unit 4, Fig. 1, from a source 1 is regularly interrupted by a radially-slotted disc 3 driven by the motor 57 whose speed is to be controlled. The output of an amplifier 5 associated with unit 4 is a squared pulse signal, Fig. 3, which persists during the interruption of the beam and therefore has a duration inversely proportional to the rotational speed of the disc and the motor. This signal is applied over a differentiating network comprising elements 6, 19 to the grid 8 of a double-triode flip-flop tube 7, so that each positive spiked pulse, corresponding to the leading edges of the pulses of Fig. 3, causes conduction in the tube and the initiation of a negative pulse on the grid 21 of a " triggering " tube 22 connected to the anode 10 of tube 7. A rectifier 23 connected between earth and the grid 21 maintains the negative voltage on the latter. The arrival of the negative pulse shocks a ringing circuit 26, 27 into oscillation with a reference period, set by capacitor 27, equal to the duration of the pulses of Fig. 3 when the disc and motor are rotating at the desired speed. The sinusoidal output across this circuit, Fig. 5, is applied to the grid 31 of a cathode follower tube 32 whose output, Fig. 6, across its cathode resistor 34 is applied to the grid of a tube 37 and to the grid 9 of the flip-flop tube 7. When grid 9 goes positive the flip-flop is reset for the arrival of the next positive spiked pulse, and the negative pulse on grid 21 of " triggering " tube 22 ceases. The duration of this negative pulse, Fig. 4, is thus half the reference period set by oscillations in the ringing circuit, the oscillations being confined to one complete cycle for each negative pulse on grid 21 since conduction is restored in tube 22 when its cathode returns to zero potential to find grid 21 also at zero potential. The squared pulse output of tube 37, Fig. 7, is applied over a differentiating network comprising elements 43, 46 to the grid 44 of a thyratron 45. The output of amplifier 5 is applied to the anode 49 of the thyratron, so that if the positive spiked pulses of Fig. 8, corresponding to the trailing edges of the pulses of Fig. 7 and occurring at the end of each reference period, reach the grid 44 when the anode is still positive the thyratron conducts until the anode drops to zero potential as shown in Fig. 9. The output of the thyratron is applied, over a rectifier 52 and an amplifier 53, to the control elements of a rectifier 55 supplying the armature of motor 57, thus regulating the motor speed.
Patent GB-469842-A (GB)
Title: Improvements in toy vehicles and tracks therefor
IPC: A63H18/02
Filed: 1936-03-21
Abstract: 469,842. Toys. KOHNSTAM, E. March 21, 1936, No. 8502. [Class 132 (iii)] A toy vehicle track has means for alternately blocking each road at a crossing and for actuating corresponding signal lights. The track 4, which may be of sheet metal in sections, is dish shape and underneath the arms of the unitary crossing 2 are provided slidable channel section elongated obstructor plates 6, 7, 8, and 9 guided for vertical and longitudinal movement by flanges 10 pressed-out from the track to leave slots 11. The obstructor plates are simultaneously actuated by links 15 connected to an oscillatory plate 14 connected by a cranked reciprocating rod 16 to a control lever 13 to alternately in pairs lower them beneath, and raise them to, the level of the track 4 through slots 21 cut in the side flanges 22 of the plates co-operating with fixed cam elements 20 in the form of lugs inturned from the flanges 10 of the track 4. When a pair of obstructor plates are in the level of the track 4 a curved gravity or spring-pressed clockwork-drive stopping or braking element 5 on the vehicle is retained in the inoperative position and the vehicle can proceed across the crossing, but when a pair of obstructor plates are below the level of the track 4 the element 5 moves downwards and becomes operative to stop or brake the clockwork drive of the vehicle. The side flanges 3 of the track 4 slope slightly outwardly so as not to impede materially the rotation of the vehicle wheels when driven, but they exert a braking action on the vehicle after the drive has been stopped. Two obstructor plates in adjacent arms of the crossing may be used instead of four plates. A standard 23 is detachably mounted near the crossing and carries a four-sided lantern 23a with two differently coloured windows, 24, 25, representing " stop " and " go " lights, in each side and divided into two compartments by an opaque screen, the windows being illuminated by an electric lamp in each compartment connected to terminals 26, 27, one or other of which is connected to the pivotally mounted terminal 29, connected to the pocket lamp battery 30, by a wiper 31 fixed to the plate 14 and moved therewith. In a modified construction the obstructor plates are replaced by wire stops against which the vehicles abut directly and which are slidable in guide slots across the track.
Patent GB-179907-A (GB)
Title: Expanding device for boiler tubes and the like
IPC: B21D39/10
Filed: 1922-03-24
Abstract: 179,907. Slesazeck, P. May 9, 1921, [Convention date]. Tube expanders.-In a tube expander of the roller-head type for expanding boiler and like tubes into tube-plates, the casing 1 is provided with a number of axial slots to form a series of spring tongues 11 which frictionally grip the feednut 7 so that when the pressure increases at the end of the expanding operation the nut may move to the right so as to project beyond the end of the casing and so indicate to the workman that the operation is complete. The nut may be coned externally to engage a similar recess in the casing. The pressure of the tongues on the nut may be varied by an axially movable ring 12.
Patent GB-741884-A (GB)
Title: Improvements in or relating to diaphragm type pumps
Inventor: MULLER WALTER
IPC: F16J3/02
Filed: 1953-03-27
Abstract: 741,884. Pistons. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 29, 1954 [March 27, 1953], No. 8603/53. Class 122(1) [Also in Group XXVIII] In a diaphragm pump having a diaphragm 18 backed by a series of interfitting rings 23 slidable axially relative to each other and engageable by interengaging vanes 21 and ribs 15 formed on a tubular member 20 fixed to the operating rod 14 and the casing 11 respectively, so that at either end of the pump stroke the diaphragm is conically supported, a conically formed plunger 17 is carried on the rod 14 with clearance between it and the casing so that during the pump charging stroke liquid is trapped between the plunger and the diaphragm to force the diaphragm firmly against the rings 23, liquid being allowed to slowly escape via the clearance. The plunger 17 may be formed with a passage or passages controlled by non-return valves which close during the charging stroke and open during the working stroke. Specification 690,945 is referred to.
Patent GB-286481-A (GB)
Title: Improvements in cigarette holders
IPC: A24F13/22
Filed: 1927-03-30
Abstract: 286,481. Rosenthal, L. A. March 30, 1927. Cigarette holders are made of gold or other metal or of vulcanite, papiermache, artificial horn, or waxed cardboard and have their ends similarly flared. They may be elliptical in crosssection, and the length should be one- and-a-half times to twice the diameter.
Patent GB-895442-A (GB)
Title: A device for stripping or dividing insulated electric cables and conductors
IPC: H02G1/12
Filed: 1958-03-19
Abstract: 895,442. Stripping cables. DOWDEN, J. H. March 19, 1959 [March 19, 1958; Aug. 28, 1958], Nos. 8740/58 and 27580/58. Drawings to Specification. Class 36. A device for stripping or dividing flat cables comprises a body with a hole therethrough, the cross-section of the hole being similar to that of the cable and of such size that the cable will pass through with a slight clearance, and a cutting-blade mounted in the body so as to intersect and extend right across the hole and so positioned that it will divide the cable longitudinally as it is passed through the hole, or so that it will sever the insulation from one side of one of the cores. The body is preferably in two parts to facilitate changing the blade and it may have a multiplicity of holes to cater for different sizes of cable, and/or more than one blade in each hole. Blades may be set at an angle to each other or to the axis of the hole and may be movably mounted.
Patent GB-845869-A (GB)
Title: A new or improved device for securing a flooring element or panel to a support
Inventor: AITKEN GEORGE GILFILLAN
IPC: E04B5/10
Filed: 1956-03-21
Abstract: 845,869. Floors. FISHER & LUDLOW Ltd. March 18, 1957 [March 21, 1956], No. 8762/56. Class 20(4) A panel assembly for floors comprises a number of panels 11 each embodying strips 12 of elongated configuration in cross-section connected together in spaced relationship with the major axis of the cross-section of the strips extending transversely of the plane of the panel, a number of flanged supports 10 for the panels, and securing members 15 for fastening the panels to the supports. The members 15 each comprise a one-piece, deformable, metal plate provided at one portion thereof with an inwardly tapered recess 18 extending from an edge of the plate and receiving an edge portion of the, or one of the flanges 14 of the support, with opposite sides of the recess in gripping engagement with opposite faces of the received flange to secure the plate thereto, the plate being formed at a position transversely opposite to the two mutually tapered sides of the recess with one or more integral tongues 17 which are bent over an adjacent panel strip edge which is directed away from the associated flanged support so as thereby to secure each of the panels to the supports. As shown, the members 15 are formed from sheet or strip metal bent about a medial line parallel to one pair of opposed edges to provide a web 16 of double thickness; the tongues 17 may also be bent around the bars 13 interconnecting the strips 12. According to the Provisional Specification, the members may be used to secure timber panels. Specifications 715,638 and 755,735 are referred to.
Patent GB-122770-A (GB)
Title: Improvements in Safety Razors.
IPC: B26B21/50
Filed: 1918-05-28
Abstract: 122,770. Evered & Co., and Willmott, C. May 28, 1918. Stropping - apparatus. - In a safety razor, the clip f for the blade is mounted on a spindle c geared to a spindle or roller d above a spindle e, the three spindles being carried in bearings in arms a<1>, a<2> at the ends of a plate a on a handle b, which may be fixed or detachable. A comb-like guard h has ear-pieces h<1>, through which passes the spindle c, a coiled spring on this spindle serving, when the blade is placed in engagement with hooks h<4>, to maintain the parts in position, for shaving. For stropping, however, the blade is released from the hooks and a strop k is passed between the parts d, h; on then moving the razor to and fro on the strop, the blade is turned over from one side to the other and becomes sharpened on both sides of its edges. The guard has a central tongue, which may be acted on by the thumb-nail in order to free the blade from the teeth h<4>.
Patent GB-452597-A (GB)
Title: A combined handle and lock
IPC: E05B13/10
Filed: 1935-03-21
Abstract: 452,597. Window fastenings ; locks. HELLIWELL & CO., Ltd., and HOLTON, J. W., Birds Royd, Brighouse, Yorkshire. March 21, 1935, No. 8811. [Class 44] A window &c. fastening of cock-spur type has ar enlarged boss L by which the handle M and nose N are pivotally mountec on a fixed cylindrical lock casing containing a sliding bolt T adapted to be shot into engagement with a recess l in nose N to retain the fastening in engagec position. Nose N may have a slot as in Fig. 2 to retain the window &c ajar. The casing E has a square boss D fixed in a square hole in a lug C on the movable frame B by an external screw G and internal screw H, the casing serving to retain the hollow boss L in place by a flange P thereon located between case E and a plate F. A projection S working in an arcuate recess R limits movement of the fastening. The boss L is retained frictionally against accidental angular movement by a brake member V urged outwards by a spring t which also bears frictionally against the bolt T. Bolt T may be shot and retracted by key as in Figs. 1-4, or may be operated by knob Z, Figs. 5, 8, the bolt in the latter case being locked by permutation discs W (two shown) engaging recesses y in the bolt, and released by rotating the discs to bring cutaway portions w into registration with the bolt.
Patent GB-1176373-A (GB)
Title: Orbiting Electron Vacuum Pumps
IPC: H01J41/16
Filed: 1967-02-24
Abstract: 1,176,373. lon pumps. NORTON CO. 24 Feb., 1967 [28 Feb., 1966], No. 8827/67. Heading H1D. In an orbiting electron vacuum pump comprising a plurality of getter slugs 28A to 28D mounted on an anode rod 26, a washer 134, made of a material, e.g. molybdenum, tantalum or tungsten having a lower vapour pressure and a higher melting point than the getter material e.g. titanium, covers at least a portion of the end face of the getter slug 28A nearest the inlet end 18 of the cathode 12. The washer 134 absorbs electrons emitted by filament 20 and reflected from the region 18 surrounding the end of the rod 26 in orbits which are tight when the pressure is low, thus reducing the heating of the getter slugs and the sublimation rate at the low pressure end of the pumping range. The washer 134 and slugs 28 are secured in position by springs 32. The pump body forming the cathode 12 is surrounded by cooling coils 14 and terminates in a flange 20 connected to a flange 22 of a member 24, e.g. the bell jar of a vacuum coating apparatus.
Patent GB-1221231-A (GB)
Title: Improvements in or relating to the tinning or tinning and soldering of metallic elements
IPC: B23K1/20
Filed: 1968-02-23
Abstract: 1,221,231. Soldering. SIEMENS A.G. 23 Feb., 1968 [24 Feb., 1967], No. 8872/68. Heading B3R. In tinning or tinning- and soldering metal elements 2 on an insulating member 1 a layer of soft solder is applied to the member 1 at a temperature below that at which alloying of the solder with the elements takes place and then the layer is heated, in the presence of a flux, at a temperature at which alloying of the solder with the element takes place, whereby the solder shrinks on to the elements and alloys with the elements. The member 1 is a carrier plate of insulating material on the surface of which conducting elements 2 are etched having enlarged parts 2<SP>1</SP> in which openings are provided for leads from a component 3. The plate 1 is cleaned to remove dirt and oxide and tin solder is sprayed on the plate to produce a porous layer shown over the region 4. Liquid flux is sprayed over the layer and the layer is heated by reducing a flame to cause alloying to take place between the elements 2, 2<SP>1</SP> and the solder. The solder shrinks due to its surface tension from the insulating material on to the elements 2, 2<SP>1</SP> as shown over the region 5, tins the conductors 2, 2<SP>1</SP> and solder the leads of the component 3 to the conductors. Parts of the conductors it is desired not to tin may be covered with masks or templates. Circuit boards for telecommunications may be tinned or soldered and the final heating may employ hot air or radiant heating.
Patent GB-277386-A (GB)
Title: Improvements in submarine mines
IPC: F42C14/04
Filed: 1916-06-24
Abstract: 277,386. Skipwith, H. L. d'E., and Gwynne, A. L. June 24, 1916. Mines, marine.-A primer 1 normally at an inoperative distance from a detonator 10 is brought close thereto by an hydrostatic device when the mine is moored at the appointed depth. The primer is carried by a rod 3 locked by a member 7, which must be released before the mine is laid. As the mine sinks, hydrostatic pressure on a diaphragm 5 lifts a sleeve 4 and compresses a spring 8 until the sleeve uncovers a ball 9 which releases the rod 3. The pr'mer is then moved up against the detonator 10. The arrangement of primer and detonator may be reversed, the primer being fixed and the detona tor movable.
Patent GB-351054-A (GB)
Title: A detachable dome for the protection of sparking plugs and magnetos and their electric supply systems
IPC: H01T13/06
Filed: 1930-03-21
Abstract: 351,054. Sparking-plugs. WILLIAMS, E., Trephiney, Stone, Falfield S.O., Gloucestershire. March 21, 1930, Nos. 9014 and 12875. [Class 7 (iv).] The outer end of the plug and its connection to the current lead are protected by a cover 3 integral with, or attached by screw or bayonet slot to, the plug casing. The lead 7 may be carried by a separable cap 6 screwed &c. into the cover 3, or may be mounted independently of the cap. Ribs 12 and holes or vents 14 promote cooling. The cover 3 may be of insulating material, or of metal bushed with insulation.
Patent GB-882773-A (GB)
Title: An improved hut or shelter
IPC: E04B1/61
Filed: 1959-03-16
Abstract: 882,773. Buildings. ALUMINIUM-INDUSTR1E-A.G. March 16, 1959 [March 17, 1958], No. 9024/59. Class 20(1) A hut or shelter comprises one or more pairs of curved roof elements 1, 1<SP>1</SP> connected together by channel members 2, 2<SP>1</SP> secured to their upper edges. Each channel member comprises two flanges 6 or 6<SP>1</SP> between which the roof elements are received, a downward extension 3 or 3<SP>1</SP> with a cross head 4 (not shown) or 4<SP>1</SP> extending for half of its length, and an upward extension 14 or 14<SP>1</SP> with a horizontal flange 12 or 12<SP>1</SP> extending for half of its length. The channel members 2, 2<SP>1</SP> are connected by slotted members 5. The elements 1, 1<SP>1</SP> are corrugated form and are provided with foot flanges 7. The ends of the hut may be left open or closed by members received by the corrugations of the roof elements, packing being provided.