baber/WOPTO huggingface dataset:
Patent GB-648072-A (GB)
Title: Improvements in or relating to metal and other framed glazing assemblies
IPC: E06B3/60
Filed: 1948-11-17
Abstract: 648,072. Glazing windows. SENLACMETAL-CASEMENTS, Ltd., and COWDRY, T. T. Nov 17, 1948, No. 29861. [Class 20(iii)] To overcome the difficulty of providing accurate mitred joints between lengths of beading attached to a frame to secure a glass pane in position therein, the ends of the beading 13 adjacent each corner of the frame 10 are provided each with a separate joint covering element 16 of sheet metal, the two elements at each corner being adapted to abut with one another along edges which are shaped, as at 19, to form in the completed assembly, the appearance of a mitred joint at the junctions of the individual beading members- and serving. further to cover the adjacent extremities of the members which thus need only be cut roughly to length.
Patent GB-298948-A (GB)
Title: Improvements in the manufacture of explosive projectile fuses
IPC: F42C19/02
Filed: 1928-10-16
Abstract: 298,948. Soc. Italiana Polveri Esplodenti. Oct. 17, 1927, [Convention date]. Projectile fuzes.-All the parts making up the body of a fuze are made wholly of plastic materials, for example bakelite compressed) in heated moulds and requiring no subsequent machining. The Specification as open to inspection under Sect. 91 (3) (u) describes also the embedding of metal parts in the plastic material. This subjectmatter does not appear in the Specification as accepted.
Patent GB-462843-A (GB)
Title: Improvements in short-wave transmitters for aerial and marine navigation
IPC: G01S1/02
Filed: 1935-10-29
Abstract: 462,843. Directive wireless signalling. SOC. INDUSTRIELLE DES PROCEDES W. A. LOTH. Oct. 29, 1935, No. 29893. Convention date, Oct. 31, 1934. [Class 40 (v)] In a short-wave system forlandingaeroplanes, an horizontal overlapping-beam course of the kind shown in Fig. 1A is combined with a vertical gliding beam of the kind shown in Fig. 4A. The horizontal course is radiated from two dipoles 1, 2, Fig. 1, energized in phase or in phase-opposition, and a third dipole 3 spaced a quarter-wave away and supplied from the same feed-lines through a change-over switch 5. Or two dipoles may be connected to the same feed-line through a change-over switch, Fig. 3 (not shown). Fig. 4 shows two vertical dipoles 11, 12 arranged for radiating the landing beam, Fig. 4A, which is modulated differently from the horizontal beam. Preferably, the aerials 11, 12 are separated from the aerials 1, 2, 3 by a distance of from five to ten wavelengths, as shown in plan in Fig. 5. The receiver may be a super-regenerator circuit in which the characteristic A-N signals are separated out, rectified, and fed to a centrezero milliammeter.
Patent GB-729115-A (GB)
Title: Improvements in or relating to telephone subscribers' instruments
Inventor: BEADLE ANTHONY CRISP
IPC: H04M1/58
Filed: 1950-12-06
Abstract: 729,115. Anti-side-tone circuits. STANDARD TELEPHONES & CABLES, Ltd. Dec. 6, 1951 [Dec. 6, 1950], No. 29901/50. Class 40(4). In order to improve side-tone balance on lines of differing impedances, a substation circuit of the anti-side-tone type, comprising a transmitter 5, a receiver 6, and normal side-tone balancing means X, is provided with a correcting network Y containing a non-linear element responsive to the alternating current output of the transmitter 5 but independent of the applied unidirectional current, the correcting network Y being so arranged that when the transmitter output is low the impedance of the non-linear element is sufficiently high to constitute effectively an open circuit, but when the transmitter output exceeds a predetermined level the impedance of the non-linear element is relatively low and the correcting network Y when subjected to an applied voltage of any given frequency produces an output current in which the component of the given frequency is substantially the same as would be produced by a reactance and resistance in series. The invention may be applied to a substation of either the common battery type, Fig. 1, or the local battery type, Fig. 2 (not shown). The correcting network Y may comprise a condenser in series with a non-linear element which may consist of two oppositely-poled rectifiers in parallel, a silicon carbide element, a thermistor, or a saturable choke (Figs. 3-6 respectively, not shown). Alternatively the correcting network Y may comprise a transformer 19, Fig. 7, of which the secondary circuit contains a non- linear element 16 in series with a condenser 13 and a resistor 21 in parallel.
Patent GB-299342-A (GB)
Abstract: 299,342. British Celanese, Ltd., Dreyfus, H., and Bader, W. July 23, 1927. Acetic and other aliphatic anhydrides are produced by reacting liquid aliphatic, acid or its salt with a phosphoric acid of lower degree of hydration than orthophosphoric acid or with an alkali or alkaline earth salt of such acid with or without a non-aqueous diluent such as acetic acid or acetic anhydride, suitable temperatures being 100-250‹ C., and pressure being employed if desired. When solids are employed a material such as kieselguhr may be added to present caking. The anhydride is recovered bv distillation or by filtration with or without subsequent distillation. Preferably such a quantity of the aliphatic acid or salt thereof is taken as to convert the other reagent into orthophosphoric acid or an orthophosphate. If any pyrophosphoric acid or pyrophosphate occurs in the product, more aliphatic acid or salt thereof may be added to produce further anhydride. The orthophospbate is reconverted by known means into metaphosphoric or pyrophosphoric acid or a salt thereof for use again. When the anhydride is separated by distillation normal or reduced or other pressure may be employed, and air, carbon dioxide, or other indifferent gas may be blown through the vessel. Examples describe the production of acetic anhydride from a mixture of sodium metaphosphate, anhydrous sodium acetate, and infusorial earth moistened with glacial acetic acid, the reaction being effected at 150-180‹ C. Specification 280,972 is referred to.
Patent GB-871698-A (GB)
Title: Process for the production of cupro-lead powder
IPC: C25C5/02
Filed: 1958-09-19
Abstract: 871,698. Electrodeposition of cupro-lead powder. SOC. INDUSTRIELLE DES COUSSINETS. Sept. 19, 1958 [Sept. 26, 1957], No. 30063/58. Class 41. Cupro-lead powder is produced by electrolysing an aqueous solution containing copper cyanide, a lead compound, an alkali metal cyanide and a chelating agent consisting of ethylenediamine tetra-acetic acid or the mono-, di-, tri- or tetra-sodium salt thereof, in which solution the cation containing the copper and that containing the lead have the same potential, to form a pulverulent deposit on the cathode. Preferably, tetrasodium ethylenediamine tetra-acetate is used. The anode may be of copper and/or lead waste and may contain impurities such as iron. The pulverulent deposit may be removed, washed, disintegrated, dried at up to 80‹ C., further subdivided, and sieved. The electrolysis may be conducted at a voltage of 6-12 V., a cathode current density of 5 to 100 amps/sq. dm. and a temperature of 30- 100‹ C.; the electrolyte may also contain an alkali metal hydroxide and/or ammonia. Apparatus comprises a cell A in a cooling tank B; alloy is deposited on rotating cathode d and removed therefrom by scraper R and conveyed to a receiver, thence to pulverizing and washing stages. The anode C may be a trough containing scrap.
Patent GB-777859-A (GB)
Title: Improvements in or relating to connecting means for pipes and tubes
IPC: F16L47/04
Filed: 1954-10-20
Abstract: 777,859. Pipe joints. MITCHELL, R. J., and ALLIED ART INDUSTRIES, Ltd. Jan. 20, 1956 [Oct 20, 1954; Jan. 5, 1955], Nos. 30138/54 and 283/55. Class 99(1) In a joint for pipes of polyethylene, copper, steel or aluminium a pair of sleeves 2, 4 is mounted on and retained at or near the end of each pipe 1, the internal sleeves 4 having an external taper and the external sleeves 2 being provided with a co-operating and opposite internal taper. Means are provided for bringing and holding the sleeves 2 together so as to compress a sealing member 7 disposed between the opposing end faces of the sleeves 4 or the ends of the pipes, or both. As shown in Fig. 1, the outer sleeve on one pipe constitutes a coupling body which is in screw-threaded engagement with a coupling member 6 coacting with the outer sleeve of the other pipe ; alternatively coupling members adapted to be screwed together are mounted on the sleeves 2, or the latter have flanges engaged by rings which are bolted or screwed together; a quick-acting coupling device may be used. The sealing ring is of rubber, metal and rubber or nylon, polyethylene or silicone rubber. The internal sleeves 4, Fig. 4, may have serrated external surfaces or annular flanges 8, or both, and the ring 7, Fig. 8 may be substantially U-shaped in crosssection, constructed of copper, steel or hard rubber, and held between the inclined faces 9 of the sleeves 4.
Patent GB-289761-A (GB)
Title: Pressure gauges
IPC: G01L17/00
Filed: 1927-11-10
Abstract: 289,761. Schrader's Son, Inc., A., (Assignees of Wahl, J., and Melzer, O.). April 30, 1927, [Convention date]. Pneumatic tyre pressure gauges. -A gauge for use with both high and low pressure tyres comprises a casing, a pressure responsive member in said casing, resilient means resisting movement of this member, and secondary resilient means adapted to supplement the first when the member has moved a predetermined distance. A second tube H open at both ends is located within the tubular casing b and is provided with a piston E between which and an inturned flange h on the end of the tube H is a relatively weak spring J. The piston rod e passes through the opening in the end of the tube H and the upper half is reduced in diameter forming a shoulder e<1>. Surrounding the tube H within the casing b is the loading spring F the lower end of which is anchored to a fixture K at the lower end of the casing b. The upper end of the spring F is connected to a cup-shaped plunger L formed with an opening through which the reduced portion of the piston rod moves freely, but through which the shoulder e<1> cannot pass. A hollow member G forming an expansion chamber is provided between the usual holes g<1>, g<2> and is clamped between the usual valve depressor part D and a packing h<1> closing the tube H. For balloon tyres, the weak spring J only is called into use, but at higher pressures the shoulder e<1> engages the flange L and the stronger spring is brought into play. The pressure indicia are uniformly spaced on the indicating member C and are arranged in arithmetical progression the common difference for the lower half of the scale being greater than that for the upper part. The tube b is spun inwardly at the upper end to prevent the member C being pushed out of the tube and the member C is held in any position reached by a friction ring.
Patent GB-723291-A (GB)
Title: Photographic camera shutter incorporating a flashlight synchronising switch
IPC: G03B9/22
Filed: 1952-12-01
Abstract: 723,291. Photographic shutters iricorporating flashlamp synchronizers. BURGER, E. Dec. 1, 1952 [Dec. 8, 1951], No. 30427/52. Class 98 (1). In a shutter having a cover blade unit and a flashlamp synchronizing switch, a lever controlling the cover blade unit is adapted on actuation to release-the shutter master member to effect opening of the shutter exposure blades and to close the flashlight switch in timed relation. Preferably the lever is separate from the shutter trigger but is actuated thereby. As shown, a spring-driven master member 3 which through a link 5 oscillates a blade ring 1 controlling the exposure-making blades is latched in set position, to which it is moved by manually-operable means not shown, by a lug 12a on a bell-crank lever 12 controlling by links 9, 10 a pair of pivoted cover blades 6, 7, the lever 12 pivoted at 13 being urged by a spring 20 between it and an anticlockwiseuiged trigger 14 also pivoted at 13 into the position shown and held therein by a semicircular pin on the curved arm of the lever engaging a shoulder on an arm 16b of a clockwise-urged three-armed lever 16 pivoted at 18. The curved arm of the bell-crank lever 12 carries also a pin 21 against which bears the tail 22a of. an anticlockwise-urged lever 22 pivoted at 23 and having a contact arm 22b which forms with a contact pin 25a on an adjustable lamp-lag setting disc 25 of insulating material, a flashlamp synchronizing switch. On depressing the trigger 14, a pin 17 thereon depresses the lever 16 and so releases it from the pin 19 whereafter the bell-crank lever 12 follows the trigger, thereby freeing the movable contact member 22 and opening the cover blades and, when the lug 12a frees the master member 3, opening the shutter. For lamps of smaller lags the disc 25 is moved successively anticlockwise over the range " M " increasing the distance travelled by the contact 22b prior to engaging the fixed contact 25a so that the initial lamp energization occurs an appropriately smaller interval before the shutter opens. For gas-discharge lamps of zero lag the disc 25 is set to "X," while for exposures without the flashlamp the disc is set to " O " when the lever 16 is held disengaged from the pin 19 by a finger 25d on the disc and the pin 25a is located beyond the end of the path of the moving contact 22b. Since the lapse of time between the operation of the trigger and the release of the master member is dependent on the inertia of the lever 12; uncertainty as to the duration of this delay may be reduced by replacing the direct connection to the cover blades by a shorter arm having a pin engaging in a suitably chosen slot in a pivoted lever carrying the links 9, 10 so that after opening of the cover blades the moving mass of the mechanism releasing the master member is reduced.
Patent GB-695037-A (GB)
Title: Improved process for making resinous compositions for the manufacture of articles having a self-lubricated surface
IPC: B29C33/60
Filed: 1950-12-13
Abstract: Synthetic resin moulding compositions for the manufacture of articles having a self-lubricated surface are made by compounding the resin with a filler and then blending the compounded resin with a sulphide telluride or selenide of molybdenum, zirconium, titanium or tungsten, which acts as a lubricant.  The lubricant particles are thus prevented from being coated with a film of the resin and are immediately available in the finished article for lubricating the surface of the article.  In an example the following materials were compounded and ground to powder: phenol-formaldehyde resin 53.2; walnut shell flour 8.33; wood flour 25.0; asbestos fibres 5.83; nigrosine dye 1.67; candellila wax 0.833; all parts by weight.  About 5 per cent by weight of these materials of molybdenum sulphide was then blended in and the mix ground again.
Patent GB-1350995-A (GB)
Title: Pinion gear transmission
IPC: F16H57/021
Filed: 1971-06-29
Abstract: 1350995 Toothed gearing; differential gear SKF INDUSTRIAL TRADING & DEVELOPMENT CO NV 29 June 1971 [30 June 1970] 30447/71 Headings F2Q and F2D In a motor-vehicle conventional type bevel differential gear 4 driven by the usual crown wheel 3 and pinion 6 from the usual propeller shaft (not shown), the pinion 6, pinion shaft 7, propeller shaft connecting flange 9 and roller bearings 15, 17 form a unit which after its assembly cannot be taken apart. As shown, when the parts are assembled together, finally putting the cylindrical sleeve 8 of flange 9 over the end of pinion shaft 7, the bearings 15, 17 are preloaded by compressing the flange 9 and pinion 6 towards each other such that when the correct preload is achieved the sleeve 8 and shaft 7 are permanently connected by electrobeam or spin welding. Fig. 2 (not shown) illustrates a similar but more compact version in which the flange (22) is formed with a sleeve (21) and is spigoted on the pinion shaft (20), the ball bearing races being directly formed in the surfaces of the pinion shaft and sleeve and in an outer housing (25, 26) shimmed and bolted to the main housing (27), the bearings being correctly pre-loaded when the shaft and sleeve are abutted and welded together. Figs. 3 to 5 (not shown) show various alternative arrangements in which the pinion and connecting flange are forged as one piece, the pre-loading of the bearings being effected by the insertion of the balls during assembly. Fig. 4 illustrates an arrangement in which the ball bearings are arranged at each end of the pinion teeth in a supporting housing having an opening through which the crown wheel engages the pinion. In Fig. 5 the pinion flange is formed as a yoke end for the propeller shaft universal joint.
Patent GB-954734-A (GB)
Title: Improvements in or relating to thread cutting mechanisms for lock stitch sewing machines
IPC: D05B57/00
Filed: 1962-08-09
Abstract: 954,734. Controlling clutches. G. M. PFAFF A.G. Aug. 9, 1962 [Aug. 11, 1961], No. 30495/62. Heading F2L. [Also in Division D1] In a sewing machine, a shaft 34 rotates through one revolution on actuation of a handle, in order to shift the needle and bobbin threads into engagement with a fixed thread-cutting blade. Shaft 34 carries a disc 39 formed with a cylindrical flange 70. A gear 35, journalled on shaft 34 and driven by gears 36, 38 from a shaft 13, carries a pin 43 which rotates within flange 70. An arm 66, pivoted at 67, is biased by a spring 69 towards flange 70, whereby a lug 68 on arm 66 enters a recess 45 in flange 70 to displace therefrom one end 44 of an arcuate arm 41 pivoted at 40 to disc 39, lug 68 being biased by a spring 46 against an edge 47 of recess 45. The other and hooked end of arm 41 is thereby positioned outside the path of movement of pin 43. A handle is connected by a link 56 to a rod 58 on an arm 59 rigid with a pivoted shaft 61. A spring 60 acts on shaft 61 to bias a pin 62 on arm 59 away from a cam 63 on shaft 13, and also to bias a pin 65 on an arm 64 rigid with shaft 61 away from arm 66. Upon actuation of said handle, pin 62 is moved into engagement with the lowest point of cam 63 at the moment appropriate to ensure correct operation of the threadsevering means, and pin 65 engages arm 66 to withdraw lug 68 from recess 45. End 44 is thereby biased by spring 46 into engagement with edge 47, whereby end 42 is engaged by pin 43 to couple shaft 34 to shaft 13. Near the end of a rotation of shaft 34, lug 68 rides down a bevel 71 in flange 70 to enter recess 45 and displace end 44 therefrom.
Patent GB-365533-A (GB)
Title: Improvements in and relating to apparatus for playing games
IPC: A63F7/00
Filed: 1930-10-11
Abstract: 365,533. Coin and check freed apparatus; games. MAUBR—, G., 18, Harting- ton Road, Sefton Park, and STOTT, J., 16, South Castle Street, both in Liverpool. Oct. 11, 1930, No. 30514. [Class 27.] Registering; Tivoli billiards and like.-A coin, token, or ball A, Fig. 1, is inserted at b<2> into a shoot b pivoted at b<1> and rolls down to a hopper c, rocking the shoot in its passage to operate a counter m. The hopper c is pivoted at c<3> to a turntable e which is rotatably mounted on a pillar f and can be turned by pulling or pushing a rod h, having an outside handle, to cause the hopper c to register with one of three runways k<1>. The rod h is then rotated and, through links h<1>, h<3>, tilts the hopper to allow the coin or ball to roll out of an opening c<5> and down the runway k<1>. The runways register with openings a<6> in a partition a<1> and, if the coin or like A passes through an opening, it rolls down a guide n<1> and closes contacts j<1> to close the circuit of an electric signal lamp j. Prize-delivery mechanism; articles stored in piles.-The successful coin or ball A rests in a slot in one of three delivery rams P<1> and transmits the movement of a plate Q to that ram to cause it to push out the bottom article X of a pile of articles or coins contained in vertical magazines Y corresponding to the rams. The plate Q is actuated through links v<1>, v<5> from a hand-operated shaft v.
Patent GB-535239-A (GB)
Title: Improved driving-mechanism for sewing-machines and the like
IPC: D05B69/12
Filed: 1939-11-22
Abstract: 535,239. Gearing for starting and stopping machinery. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Nov. 22, 1939, No. 30578. [Class 80 (ii)] [Also in Group XXXIV] In a combined clutch and brake mechanism for sewing and like machines, the brakeholder is pivoted in a ring which is hinged on anon-diametrical axis to a housing and is provided with adjusting- means. In the apparatus shown in Fig. 1, a motor 24, 11, arranged Between end caps 13, 14, drives a shaft 23 provided with a fly-wheel 25 having a friction-ring 29 for co-operation with a clutchdisc 36 on a hub 35 provided with a pulley 40. The clutchdisc can co-operate also with a brake consisting of a friction-ring 41 on a holder 45 mounted stiffly on trunnions 46 in a ring 50 which is mounted on a hinge-pin 52 on the end plate 14 and is held by a spring 59 in engagement with the head of an adjusting-screw 56. The hub 35 is movable axially by means of a rod 61 which is connected by a ball-bearing 62 to a sleeve 63 having a multiple thread 67 co-operating with a boss 66 on the end plate 13. The sleeve 63 is provided with an arm which is held in raised position by a spring 76 and is depressible, through a resilient connection, by a pedal. On depression of the pedal, the screw 67 causes the rod 61 to move longitudinally, the clutchdisc is moved into engagement with the frictionring 29, and the pulley 40 is driven. On release of the pedal, the members are returned by the spring 76, and the clutch-disc is automatically moved into engagement with the brake-ring 41. The rings 29, 41 are cemented to metal rings 28, 42 which have lugs 27, 43 engaging recesses in the fly-wheel 25 and the holder 45. The ring 28 is secured with slight lateral freedom by a split ring 30, and the ring 42 is secured by rivets. For smoothing the action of the clutch-disc, the rings 28, 42 which are resilient are formed with a wavy surface. The apparatus may be adjustbly mounted below a sewing-machine table. A guard 80 for the pulley 40 is pivoted on the end cap 14 and retained by a spring-pin. A beltguard is adjustably secured. by screws passing through a slot, to the guard 80.
Patent GB-656760-A (GB)
Title: Improvements relating to wide band thermionic valve circuits
Inventor: LEYTON ERIC MCPHAIL
IPC: H03F1/50
Filed: 1948-11-25
Abstract: 656,760. Valve amplifying circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Nov. 25, 1948, No. 30588. [Classes 40 (v) and 40 (vi)] In a grounded-grid amplifier in which the output circuit is tuned mainly by the stray capacities, the band width is increased by dividing the output inductance between the grid and anode circuits. The cathodes of the valves I, 2 are driven in pushpull from source 3, while the grids are joined to the ground plane 15 over inductances comprising conductive tubes 4, 5 respectively, which shield the input from the output circuit. The anodes are joined by inductances comprising a single conductive tube 6, 7, H.T. being supplied at the centre-tap via choke 10 and condenser 8, while the output is taken from taps 13, 14. In this way the stray capacities 11, 12 which, together with the anode-grid capacities of the valves comprise the capacitive element of the output circuit, appear in series with each other across the inductive element of the circuit, comprising inductances 4, 5, 6, 7, so allowing of an increased band width. Specification 515,864 is referred to.