baber/WOPTO huggingface dataset:
Patent GB-253997-A (GB)
Title: Improvements relating to prepayment devices
IPC: G07F15/08
Filed: 1925-03-24
Abstract: 253,997. Wall, G., and Metropolitan Vickers Electrical Co., Ltd. March 24, 1925. Price. - changing mechanism; coin action, multiple-coin.-In a prepayment device for the delivery of a commodity, such as gas or electricity, the price gear train is provided with a series of bearings adapted to receive a corresponding series of gear wheels by the selective employment of which the ratio of the train can be varied. The train, which comprises spindles 9, 10 journaled between cheeks 1, 2, the whole being detachably secured in place by a pin 7 and screw and nut 8, is provided with a series of bearing holes 20 - - 24 and 25 - - 27 adapted to receive the spindles 10, 9 respectively. The spindle 10 has a pinion 14 engaging the operating wheel 19 of the coin-side of the usual differential mechanism, and the spindle 9 has a pinion 13 engaging an idler 15 which engages a pinion 17 on the coin-receiver shaft 18. The spindles also have intermeshing gear wheels 11, 12 which are change wheels, and the two series of holes are arranged equidistant respectively from the axis 28<a> of the wheel 19 and the axis 16 of the pinion 15. To adjust the price gear train, it is detached as a unit, the spindles removed and the gear wheels 11, 12 changed. The spindles are then replaced in the holes appropriate to the new gears and the whole replaced in position. The coin gear train, by which the prepayment mechanism may be adjusted for use with different coins, is also detachable as a unit. It comprises cheeks 28, 29 between which are journaled spindles 37, 38 having intermeshing wheels 39, 42 and pinions 41, 40 engaging respectively a meter wheel 43 and a wheel 34 of the differential mechanism. The cheek 28 has an arcuate slot 35 concentric with the wheel 34 whereby the whole can be adjustably secured in position by screws 36.
Patent GB-137966-A (GB)
Title: Improvements relating to card setting machines
IPC: D01G15/84
Filed: 1919-03-31
Abstract: 137,966. Thomson, Sir F. W. Whitley-, and Middleton, W. L. March 31, 1919. Cams.-In a card-setting machine of the kind in which a cam-wheel actuates a traverse bar to position the cloth during the card-setting operation, in order to secure an even torque upon the cam, two abutments C, C<1> are provided to engage the cam and are so positioned that, whilst one abutment is ascending an incline, the other one is descending an incline. The abutment C is adjustably mounted on the traverse bar B. The abutment C' is adjustably mounted on a pivoted arm c<2>. Bowls c<3> or studs are engaged by a spring c<4> to press the abutments against the cam. The spring c<4> is pivoted on a pin c‹ adjustably mounted in a slot in a bracket c<8>, and a screw c<10> is used to adjust the pressure. The abutment C may be mounted on the travelling carriage, and the abutment C<1> on a sliding rod.
Patent GB-118074-A (GB)
Title: Improved Apparatus for the Concentration of Crushed Ores.
Inventor: MCDERMOTT WALTER
IPC: B03B5/04
Filed: 1918-05-14
Abstract: 118,074. McDermott, W. May 14, 1918. Buddling-apparatus ; moving- vessel washing apparatus. - Ores are concentrated on a smooth, corrugated, roughened, or other non-travelling surface subjected to rapid shaking and adapted to be intermittingly raised for washing off the deposited minerals. In the apparatus shown, ore and water are fed to a surface 14 supported by rods 2 and shaken by means of a weight 4 on a revolving arm 5 driven by gearing 10. The surface 14 may be slightly inclined and stepped as shown or may be a uniform horizontal surface arranged to carry a fixed depth of water. Tailings pass into a trough 19 and the concentrates are intermittently washed into a trough 20 by raising the surface about a pivot 16.
Patent GB-920695-A (GB)
Title: Improvements in or relating to hermetically sealing electrical conductors
IPC: H01B3/30
Filed: 1959-03-03
Abstract: An epoxy resin header for electrical purposes comprises a pre-formed epoxy resin dish-shaped receptacle, into which an epoxy resin pellet is placed, liquefied by heating and cured.  The pre-formed receptacle may be formed from 100 parts by weight of epoxy resin, 50 parts of filler and 15 parts of curing agent, the latter being any known hardener such as an aromatic amine, a lower aliphatic amine or an acid anhydride (e.g. m-phenylene diamine, triethylene tetramine or phthalic anhydride), and the filler being, e.g. 200 mesh slate powder.  The filler is mixed with the resin and the curing agent is blended in, the mixture then being allowed to harden to the B-stage. It is then pulverized and compression moulded to the required shape-preferably to a partly cured state, a suitable moulding cycle being from 5-10 minutes at 250 DEG -300 DEG F.  Alternatively a viscous liquid mixture may be used. The sealant pellet may be formed of the same proportions of a suitable resin (suitable proprietary resins for both pellets and receptacles being mentioned) and filler as before with 30 parts of curing agent-preferably phthalic anhydride.  Mixing is effected at approximately 250 DEG F. and the hot mixture poured into pans, cooled, pulverized and shaped into pellets of a size which will fill the pre-formed receptacle when subsequently liquified, these being then used to seal electric conductors through holes in the base thereof (see Group XXXVI).
Patent GB-539568-A (GB)
Title: Improvements in pistons for internal combustion engines
IPC: F02F3/12
Filed: 1940-05-08
Abstract: 539,568. Pistons. KAMMER, G. S. May 8, 1940, No. 8284. [Class 122 (i)] In a three-part piston in which the skirt 1, Fig. 1, the body 2 carrying the gudgeon-pin bosses, and the crown 6 are welded or otherwise fastened together, the skirt is of a material having a substantially higher co-efficient of expansion than the body, and is attached thereto at a distance from the crown, so that a packing-ring interposed between the skirt and the body in the neighbourhood of the crown is tightened by the differential expansion. The body is preferably of steel, and the skirt of a light alloy, such as an aluminium or magnesium alloy. The skirt may be attached to the body by screws 3, and a joint-ring 4 is held between them. This may be a gas-filled ring engaged between conical surfaces on the skirt and body. The space between the crown and the body may contain insulating and refractory material 5, such as fireclay, alumina, asbestos, or spongy aluminium. The refractory material 8, Fig. 2, may itself form the crown, and may be held in position by a flange 9 of the body. The material 18 i strengthened by a surface coating of electrodeposited metal or by glazing. Additional flanged supports 10, Fig. 3, may be provided for the refractory material. Specification 530,534 is referred to.
Patent GB-540854-A (GB)
Title: Improvements in or relating to the evaporation of liquids
IPC: B01D1/26
Filed: 1939-03-15
Abstract: 540,854. Evaporating plant. AKT.-GES, KUHNLE, KOPP & KAUSCH. March 15, 1839, No. 8317. Convention date, March 15, 1938. [Class 32] In processes for continuously evaporating industrial liquids, crusts are removed from the evaporator vessel by passing through the evaporation liquid which has subsequently to be evaporated, this liquid being then stored in a separate vessel for later evaporation. The solids may be precipitated prior to the subsequent evaporation. On the figure are plotted the hourly evaporating output of a particular apparatus against the time. A usual process of evaporation is shown by the broken line curve, i.e. when the maximum hourly output is at A, concentration is carried till the output at point B, has, owing to the formation of crust, decreased till an economic evaporation is no longer possible. The plant is then stopped and the output diminishes to zero at point C. After the cleaning period, point D, the evaporation plant is again put into operation and the full output A, is again reached with the subsequent fall to zero again. In the present process, starting at A evaporation is carried on to point B<SP>1</SP>, when liquid to be subsequently evaporated is flushed through to remove scale and bring the output up to maximum, A<SP>1</SP>, again. This is done repeatedly so that the output curve is the zig-zag line A, B<SP>1</SP>, A<SP>1</SP>, B<SP>1</SP>, A<SP>1</SP>, B<SP>1</SP>.
Patent GB-640117-A (GB)
Title: Improvements in light meters
IPC: G01J1/42
Filed: 1948-03-22
Abstract: 640,117. Photo-electric photometers. MACADIE, H. S., and AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO., Ltd. March 22, 1948, No. 8392. [Class 40 (iii)] In a photo-electric light meter in which the photo-cell 12 is pivoted along an edge 13, on the meter casing, so that the cell may be inclined to any chosen angle while the axis of the.indicating instrument is maintained vertical, the cell pivots into a recess (shown dotted) in the top of the meter and is maintained in the inclined position by a pair of wires 14 which ride in a slot 16 in the back of the meter and are sprung apart so as to grip the slot frictionally. The photo-cell is hermetically sealed, the front of its container consisting of a glass plate, the edge of which is silvered to provide an electrical connection with the cell, and the rear of a metal plate spaced from the cell by a spring to provide a second electrical connection. The edge of the cell is sealed with a continuous ring of " Neoprene." Optical filters may be attached to the photo-cell to alter the range. A knob 18 on the instrument may shunt the spring coil meter.
Patent GB-661926-A (GB)
Title: Improvements in vibratory screens
IPC: B07B1/28
Filed: 1949-03-28
Abstract: 661,926. Vibrating screens. GALE, N. March 28, 1950. [March 28, 1949] No. 8397/49. Class 117. A resiliently mounted vibratory screen frame a carries bearings c in which run eccentric brushes d angularly adjustable one on each end of a driving shaft e, the shaft e being given an eccentric rotation by means of an additional. eccentric bush f keyed thereto adjacent each adjustable bush d and running in stationary bearings g, and the adjacent fixed and adjustable bushes d, f, being arranged to be coupled together in any desired angular relationship to vary the vibratory motion of the frame a over the range between the sum and difference of the eccentricities of the coupled bushes d, f. As shown the frame a is resiliently carried by springs n on two parallel arms m which are adjustably mounted on the fixed bearing housings g<1> to provide for varying the inclination of the frame. The adjacent bushes d, f, have unequally notched abutting flanges d<1>, f<2>, respectively so that coupling may be effected by a strap j having a key j<1> to engage in any pair of aligned notches. The frame bearings c are carried in housings b enclosing, at each side of the frame a, an annular space in which are housed balance weights k<1>, k<2> respectively keyed to the shaft e and bush d so that they are 180 degrees apart when the bush d is in the position for minimum vibration. The housings b may function as oil circulating pumps. In a modified arrangement the shaft e may be arranged perpendicular to the screen a, which will then be vibrated in its own plane.
Patent GB-557398-A (GB)
Title: Improvements in and relating to catapult spools for aircraft
IPC: B64F1/06
Filed: 1942-06-19
Abstract: 557,398. Launching aircraft. BLACKBURN AIRCRAFT, Ltd., and HAND, P. G. E. June 19, 1942, No. 8447. [Class 4] Retractable catapult spools for aircraft are mounted for endwise movement in tubes and are held in extended position against the pull of a spring, by latching means operable from a remote point. Two spools 1, 2 are shown one retracted and the other extended. Each spool is formed with an integral sleeve 1a, 2a guided within a tube 3, and engaging in the retracted position against rubber buffers 7 on partitions 5, 6. The spools are connected together by an elastic cord 4 connected to finger grips 21 secured to loose plates 20 which engage fixed plates 22 when the grip is pulled to withdraw the spool from the tube. Each sleeve la, 2a has a groove or slot 8 engaged by a spring-pressed bolt 11 to prevent rotation of the sleeve, and which, when the spool is in its extended position, enters a hole 9 in the sleeve to secure it against retraction. The bolts 11 are simultaneously withdrawn by levers 15 having pin and slot connections 13, 14 with the bolts and operable by a Bowden cable 18, 19. A sleeve 23 surrounding each bolt 11 remains in engagement with the groove 8 when the bolt is withdrawn.
Patent GB-430372-A (GB)
Title: Improvements relating to track circuit signalling systems for railways and the like
IPC: B61L1/18
Filed: 1934-03-17
Abstract: 430,372. Track-relay signalling systems. PETER, L. H., and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. March 17, 1934, No. 8453. [Class 105] Operation of the track relay by an inter-rail voltage arising from any ripple component in unbalanced return traction current in the two rails is prevented by providing in the connection to the track relay a neutralizing voltage derived from the unbalanced return traction current Where the unbalanced state is constant the neutralizing voltage may be provided by an inductor placed near the power rail or one of the track rails or around one of the connections to the usual inductance bond at the end of the section. Fig. 6 shows an arrangement in which each rail connection 19, 20 of the bond 5 is surrounded by an inductor 17, 18 so that whatever the state of unbalance of the traction current the correct neutralizing voltage in the line to the relay winding 9 is provided by the windings 21, 22. Fig. 7 shows an arrangement in which the neutralizing voltage is provided by a single inductor 25 energized by the differential effect of the unbalanced traction currents in the two connections 19, 20 to the bond 5. Tuning condensers may be fitted.
Patent GB-566799-A (GB)
Title: Improvements in or relating to building construction
IPC: E04B2/56
Filed: 1943-05-27
Abstract: 566,799. Walls. MADGER, A. W. May 27, 1943, No. 8490. [Classes 20 (iv) and 87 (i)] [Also in Group XV] A cavity wall is formed by panels 1 having flanges 2 which slide into grooves in a pillar 4, so formed that the panels may radiate in either of two directions la or 1b. The pillar grooves may be of circular cross-section. In Fig. 4, two panels 5, 7 have flanges 6, 8 on half their height only, so that they may engage the same groove simultaneously and radiate in different directions. Grouting may be inserted. between the flanges and grooves. The arrangements are applicable to toy building construction. Specification 555,372 is referred to.
Patent GB-930832-A (GB)
Title: Improvements in or relating to electrolytic cells for the production of aluminium
IPC: C25C3/16
Filed: 1959-06-22
Abstract: 930,832. Electrolytic apparatus. BRITISH ALUMINIUM CO. Ltd. June 22, 1959 [June 24, 1958], No. 8522/63. Divided out of 930,831. Drawings to Specification. Class 41. An electrolytic cell for the production of aluminium comprises a chamber having walls composed of a silicon carbide refractory material and a floor of a refractory material, the chamber being intended to contain a pool of molten aluminium in the lower part thereof and a body of electrolyte above and in contact with the molten aluminium, and at least one cathodic current-conducting element extending into said lower part of the chamber and having at least that part of the surface thereof intended to contact the molten aluminium consisting essentially of a refractory hard metal. The expression " refractory hard metal " is defined as a material which possesses a low electrical resistivity, a low solubility in molten aluminium and molten electrolyte under cell operating conditions, a good stability under conditions existing at the cathode of a reduction cell, and which is wettable by molten aluminium under cell operating conditions. Preferred examples are the carbides and borides of titanium, zirconium, tantalum and niobium, and mixtures thereof. The cells may comprise a metal, e.g. steel, shell within which is an insulating lining of alumina, bauxite, clay or aluminium silicate bricks within which is the refractory lining of silicon carbide or silicon nitrite-bonded silicon carbide. Alternatively, the side and end walls can be constructed of silicon carbide bricks and the floor of rammed carbon mixture. The subject-matter of Specification 930,831 is disclaimed. Reference has been directed by the Comptroller to Specification 802,905.
Patent GB-169729-A (GB)
Title: Improvements in or relating to the construction of moulds for the manufacture of concrete and like slabs or blocks for building and other purposes
IPC: B28B7/24
Filed: 1920-03-24
Abstract: 169,729. Airey, E., (trading as Airey & Son, W.). March 24, 1920. Moulds; mould ng slabs or blocks.-Relates to moulds for the manufacture of concrete and like slabs or blocks of the kind having interengaging hinged sides and ends capable of being readily opened for the removal of the slab. One or more of the sides or eids project beyond the adjacent ends or sides, and a block a<3>, Fig. 15, is provided to prevent displacement of the free end and side. The moulds are provided with interengaging pins and dowels or with projections s, Fig. 16, to facilitate the stacking of moulds to permit a number of slabs to be moulded on top of one another. The moulds may all be removed as a unit when the securing-means are released, or, when the projections s are used, may be removed separately. Sawdust or like rough material is used to separate the slabs. A frame w, Fig. 14, with a co-operating rabbeted pressure-plate x is used for tamping. The sides and ends of the mould are formed with projections and recesses, or are inclined as shown in Fig. 14 to give the required configuration to the slab.
Patent GB-183192-A (GB)
Title: Improvements in or relating to balancing devices for hand operated sliding windows
IPC: E05D13/00
Filed: 1921-03-19
Abstract: 183,192. Shiel, E. W., (Hieber, A.). March 19,1921. Sashes balanced by springs; window-holders.- A hand-operated sliding window is balanced by lever and link k, l, and a spring acting on the spindle h having a squared end engaging the lever k. The spring consists of a flat strip wound into a spiral and secured to a square box at one end and to the spindle at the other end. When the spring is at the required tension, the box g is slid into a holder q and retained by the screw r in one of the holes s. The link l is connected to the window by means of a slot to permit lifting over the fence rail &c. The spring is inoperative when the stop t on the lever k abuts against the link l and when the window is fully opened as shown in dotted lines in Fig. 6, and hand operation is necessary at those points. Additional securing-means for the window in any position consist of a pressure frame w, a spring x and a bolt 6. The spring bears on the plate z attached to the pressure frame and on the enlarged forked end of the bolt 6, Fig. 14. A rotation of the bolt through a right-angle brings the projections 3 from the recesses in the plate z to the top of the central part 5 and forces the frame against the window, preventing rattling and movement. The windows are guided by pins sliding in grooves in the frame, and in windows of buildings the grooves curve towards the plane of the fixed upper window. A stop u, Fig. 6, is provided on the link l to prevent its rotation past the link k.
Patent GB-867255-A (GB)
Title: Improvements in or relating to stators of small induction alternators
IPC: H02K1/14
Filed: 1959-03-13
Abstract: 867,255. A.C. generators. GALLO, G. March 13, 1959, No. 8695/59. Class 35. An induction alternator stator constructed to eliminate whines or whistles caused by vibration comprises a plurality of initially separate salient polepieces P whose laminations are clamped by rivets R between non-magnetic rings A to form a single mechanically rigid assembly which is force fitted into a stator casing C, and if needed locked by a dowel not shown.
Patent GB-418439-A (GB)
Title: Improvements in and relating to rotary engines, pumps, and meters
IPC: F04C2/36
Filed: 1933-03-23
Abstract: 418,439. Universal joints. LOVERIDGE, C. W., 18, Arkwright Road, and LAMBE, L. J., 46, Holly Hill, both in Hampstead, London. March 23, 1933, Nos. 8720 and 12230. [Class 65 (ii).] In a rotary pump, engine or meter in which a rotor is provided with pistons 36, 37, moving around an annular chamber, an eccentric rotary seal 42 is driven by a link 45 which is connected to cross pins 46, 46<1>, in the seal 42 and rotor shaft 4 respectively.
Patent GB-380005-A (GB)
Title: Improvements in or relating to spray carburettors
IPC: F02M7/11
Filed: 1932-03-24
Abstract: 380,005. Spray carburetters. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. March 24, 1932, No. 8741. Convention date, April 10, 1931. [Class 7 (iii).] In a spray carburetter of the type in which both the air space and the fuel space of the float chamber are connected to choke tubes opening from the outside into the mixing tube at places where the vacuum is produced in different degrees, the air space of the float chamber is also connected to a place where a higher pressure exists whenever an automatic air throttle controlling the supply of secondary air is open; thereby preventing the pressure in the float chamber becoming too low and the mixture becoming too weak at wide throttle openings. Means are provided positively to close the automatic air valve when the mixing throttle is in the idling position, whereby too low a vacuum in the mixing pipe is prevented. The air space of the float chamber k is connected by a pipe i to the choke tube e, and the fuel space by the pipe m to the choke tube f, both choke tubes opening into the mixing pipe a. The float-chamber air space is also connected by pipe o to the air intake at an opening p, which is covered by the hub q of the automatic air throttle b except when the latter opens, and the slot r exposes the opening p. The opening p may communicate with the outside air, in which case it is sealed by a slotted washer, Fig. 4, mounted on the end of the spindle of the air throttle b. except when the latter is open. When the mixing throttle d is in the idling position, the hooked rod w catches under the lever y of the automatic air throttle band positively closes the latter, whereas during normal running the two throttles are not connected.