baber/WOPTO huggingface dataset:
Patent GB-1450264-A (GB)
Title: Splice for high voltage cable and method of forming same
IPC: H02G15/00
Filed: 1974-02-15
Abstract: 1450264 Cable joints GENERAL ELECTRIC CO 15 Feb 1974 [14 May 1973] 6899/74 Heading H2E  A splice between the ends of electric cable comprising a central conductor 12 surrounded by insulation 16, consists of the said insulation adjacent the connected conductor ends being tapered in a uniform slope 24 forming a conical section 26, a first body 32 of specific inductive capacitance (S.I.C.) value between 3 and 8 surrounding the connected conductor ends and extending to cover the tapered insulator 16 in a uniform counter taper 33, a second body 34 of S.I.G. between 2 and 4 (but less than that of the first body 32) superimposed over and surrounding the first body, and means restraining expansion of the splice materials longitudinally of the cable. Exposed end portions of the conductor are joined by welding or crimping 28 and then wrapped in tape 30. The first and second bodies, which may comprise polymer or copolymer rubbers with titanium compounds moulded in situ or applied as shrinkable sleeves or be self-fusing, curable or heat-shrinkable tapes (Fig. 2, not shown) are then positioned followed by a semiconductive tape 36, a copper braid shield 38 and a polymeric tape 40 which preserve the continuity of the cable insulating shield 18, copper or aluminium shield 20 and sheath 22 respectively. Finally brackets 42 or rigid cones (not shown) held by glass fibre tape 44 and rods 46 are applied to restrain longitudinal expansion of the splice. Stays (48, Fig. 2) may be used instead of the rods and brackets and the second body may be surrounded by a third body (35, Fig. 3, not shown) of S.I.C. less than that of the second body, or by multiple layers of polymeric materials of successively diminishing values of S.I.C.
Patent GB-108302-A (GB)
Title: An Improved Manufacture of Seat-posts for Cycles or the like.
IPC: B62J1/08
Filed: 1917-05-15
Abstract: 108,302. Great t Western Manufacturing Co., (Assignees of Lonn, E. J.). July 26, 1916, [Convention date]. Saddle supports are formed from blanks of the shape shown in Fig. 1 which are operated on by dies and bent so that they successively assume the shapes shown in Fig. 5, Figs. 7 and 8, and Fig. 9. At the stage shown in Figs. 7 and 8, a reinforcing-member 17 is introduced into the angle of each support, and it is held in position; when the closing of the limbs is completed as shown in Fig. 9. The meeting edges of the bent blank are ultimately brazed or otherwise united. The portion 15 of the blank is narrower than the portion 16 so that the horizontal member 13 of the support is of less diameter than the depending member 14.
Patent GB-542875-A (GB)
Title: Process of preparing the common reed for utilisation of its stem matter in the production of cellulose
IPC: D21C1/00
Filed: 1940-04-18
Abstract: 542,875. Disintegrating reeds. SNIA VISCOSA SOC. NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA., and DIOTTI, G. April 18, 1940, No. 7014. Convention date, Sept. 22, 1939. [Class 96] The common reed after ageing and drying is cut into pieces, e.g. 10 to 40 mm long, fed to the hopper 3 of a mixer 4 wherein rotating arms 7 move it towards the outlet 4<SP>1</SP> and cause the tougher stem portions of the reed to grind up the leaf portions enabling them, together with dust &c. to be sifted out, which may be facilitated with ventilating action. The remaining stem pieces may be used for producing high grade cellulose.
Patent GB-304506-A (GB)
Title: Improvements in and relating to sanitary cisterns
IPC: E03D1/08
Filed: 1928-03-06
Abstract: 304,506. Cistern Manufacturing Co., Ltd., and Eisler, J. March 6, 1928. Materials, special.-The ball-cock lever of a flushing cistern is fitted with a glass float Q secured by a band coupling P.
Patent GB-724967-A (GB)
Title: Practice projectile
IPC: F42B8/02
Filed: 1953-03-13
Abstract: 724,967. Practice projectiles. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. March 13, 1953 [April 5, 1952], No. 7054/53. Class 9(1). A practice projectile, Fig. 2, which is of the same weight and calibre as the corresponding live round, Fig. 1, and is fired by the same propellant charge comprises a hollow cylindrical body 1, a ballistic cap 2 and a flat base 3, the base and cap having frictional engagement with the body to facilitate disintegration on impact. The base supports a tracer charge adapted to ignite a self-destruction charge 6 through a relay charge 5. The body 1 preferably consists of steel, cast iron or brass, while the cap 2 and base 3 may be of aluminium alloy ; the proportions of body, cap and base being so chosen that the centre of gravity of the projectile is situated at one fourth height of the projectile from the base. The projectile has a driving band 7, preferably consisting of a metal wire embedded in a groove 7a. Attached to the projectile is a cartridge case 8 identical with that of the live round and containing a primer 9 in a perforated housing 10 surrounded by bags of powder 11. The case has a cardboard lining 12 to vary the internal volume of the case and so compensate for dimensional differences between the practice projectile and the live projectile. The practice projectile is stabilised by the slow rotation imparted to it by the rifling of the gun. The metal cap may be replaced by a cap of synthetic plastic material.
Patent GB-1249489-A (GB)
Title: Improvements in or relating to imidazoisoindole derivatives
Inventor: HOULIHAN WILLIAM JOSEPH
IPC: A61K31/395
Filed: 1968-12-12
Abstract: 1,249,489. Imidazoisoindoles. SANDOZ Ltd. 12 Dec., 1968 [18 Dec., 1967; 23 July, 1968], No. 7069/71. Divided out of 1,249,488. Heading C2C. Imidazoisoindoles of the general formula wherein R 1  is a hydrogen or chlorine atom, and acid addition salts thereof are prepared by reduction of an imidazoisoindolone of the general formula with lithium aluminium hydride, at a temperature not exceeding 45 C., in an inert solvent and under an inert atmosphere, followed optionally by salification of the product. Reference has been directed by the Comptroller to Specification 1,191,237.
Patent GB-306722-A (GB)
Title: Improvements in dental or surgical mirrors
IPC: A61B1/253
Filed: 1928-03-08
Abstract: 306,722. Fairweather, H. G. C., (Jacobi, E.). March 8, 1928. Optical instruments. - In dental or surgical mirrors in which an electric lamp is provided beneath the mirror the lamp 11 is arranged eccentrically and the mirror 1 is formed with an unsilvered lenticular portion 10 immediately over the lamp. To obviate glare the lamp may be screened by a strip of blue or gelatine or like material. The mirror is secured within a casing 2 between packing-members 6 by a screwed ring 8. The lamp 11 is supported within the casing 2 by an insulating disc 12 carrying spring contacts 13 on its under side. The leads 3<1> to this lamp extend through the handle 3 of the instrument, between insulating disc 15, 16, and are connected with conducting strips 5 on which the contacts 13 rest. The leads 3<1> are connected at the other ends to an electric plug on the end of the handle 3.
Patent GB-950734-A (GB)
Title: Improvements in or relating to control means for electrical apparatus
Inventor: HEYMAN HORACE WILLIAM
IPC: H02P7/29
Filed: 1960-03-01
Abstract: 950,734. Control of D.C. motors. SMITH'S DELIVERY VEHICLES Ltd., H. W. HEYMAN, and J. HAMBLETON. May 29, 1961 [March 1, 1960; Aug. 20, 1960; March 11, 1961], Nos. 7245/60, 28893/60 and 8975/61. Heading H2J. [Also in Divisions G3 and H3] A control system for a battery-operated electric traction motor comprises a variable frequency pulse generator, the pulses from which are used to trigger a gated diode which in turn controls the motor current. Closure of switch S1 charges capacitor CE through silicon controlled rectifier SCR3, cutting off transistors Q3, Q4. Rectifier SCR3 remains conductive, however, until the charging current through capacitor CE decreases to a predetermined value. Capacitor C1 commences to charge, at a rate determined by the value of resistor VR coupled to an accelerator pedal, until it is discharged by transistors Q1, Q2, into the gates of rectifiers SCR1, SCR2. The battery voltage is then applied across the motor circuit, and the capacitor CE discharges inductively through the elements SCR1, SCR2, L1 and D3, so reversing the charge across capacitor CE. Capacitor C2 discharges at a rate determined by resistor R1 until transistor Q4 renders rectifier SCR3 conductive and the reverse potential held by capacitor CE turns off the rectifiers SCR1, SCR2. The capacitor CE then recharges in the original direction and the cycle is repeated. Motor current is maintained by diode RD2 during the interpulse period. Fluctuations in the battery voltage produce an inductive effect and tend to reduce the stored charge on capacitor CE, so preventing turn-off of the rectifiers SCR1, SCR2. The inclusion of diode RD1 ensures that the stored charge on capacitor CE is not reduced by the battery transients. For battery charging purposes, the points A, B, C and D are connected as shown in Fig. 2, the rectifiers SCR1, SCR2 serving for both speed control and battery charging. The battery is supplied through mains transformer T, an auxiliary winding of which supplies a bridge rectifier whose output is clipped by Zener diode Z. Potentiometer P controls the potential applied to transistor Q1 for charging capacitor C1 until transistors Q4, Q5 produce a sharp pulse. This pulse fires the rectifiers SCR1, SCR2, which are switched off automatically at the end of the half cycle. By varying the setting of potentiometer P, the time delay of the pulse from the start of the cycle can be changed. Current feedback from resistor R1 to transistor Q3 modifies the phase of the firing pulse. When charging is complete, a voltage sensitive relay actuates switch S to raise the potential of the base of transistor Q4, so delaying the pulse.
Patent GB-329729-A (GB)
Title: Improvements in buffing and draw gear for railway vehicles
IPC: A01D39/00
Filed: 1929-03-06
Abstract: 329,729. Spencer Moulton & Co., Ltd., G., and Glascodine, R. T. March 6, 1929. Buffers; draw-gear.-In railway vehicles having sliding vestibule ends abutting against similar vestibule ends on adjacent vehicles, the ends are forced out by central steel springs, are fitted with cushioning springs to resist tilting in a horizontal plane, and are provided with indiarubber buffing springs which come into action after the central springs have been compressed. Also a central coupler with indiarubber buffing and draw springs is arranged below the vestibule end buffing device and co-operates with it. The end platform 1, shown in Figs. 1 and 2, abuts against a similar platform on the adjacent vehicle and is forced outwards by a central push-bar 13 connected to a slidable crosshead 12 acted upon by helical springs abutting against the abutment member 8 which is fixed to the framing 6. The outward movement of the crosshead 12 is limited by bolts 11. The end platform 1 is pivoted to two rods 2 one on each side, each of these rods being moved rearwardly by a helical spring 4. When the end platform is moved inwards, the helical springs are compressed until the crosshead 12 abuts against the end of the central pin 17 which projects from the compression plate 7. The indiarubber buffing springs 5 then come into action, being compressed between the compression plate 7 and the end of the frame 6. The indiarubber springs consist of an assemblage of flat discs of rectangular or other shape separated by metal plates, each disc having embedded in it a metal stiffening plate. The central coupler, shown in Figs. 6 and 7, is arranged below the vestibule buffing arrangement and includes a yoke 19 the front end of which is connected by a vertical pivot pin 20 to the end of a draw bar which is not shown. The yoke encircles the indiarubber buffing springs 25 and the draw springs 21, the two sets of springs being arranged on opposite sides of a transverse abutment member 22 fixed to the frame.
Patent GB-1280591-A (GB)
Title: Method and apparatus for the preparation of synthetic fibre tows
IPC: D01D10/06
Filed: 1970-02-16
Abstract: 1280591 Processing of filamentary tows VEPA AG 16 Feb 1970 [17 Feb 1969] 7341/70 Heading B5B [Also in Division D1] In the preparation of synthetic (e.g. polyamide) fibres the fibres are, after spinning washed to remove at least some monomers present prior to the fibres being stretched, washed crimped, set and then subjected to another treatment such as cutting, stacking or winding, this all being performed in a continuous operation with the fibres in a substantially tensionless condition during the first washing step. For details of apparatus used see D1 abridgment.
Patent GB-255772-A (GB)
Title: Improved window chain
IPC: E05C17/36
Filed: 1926-03-17
Abstract: 255,772. Weldon, E. March 17, 1926. Door-chains and the like.- Windows are secured in a partially open position, by a length of chain b secured to the sash by a ring-headed screw a and to the frame by a split ring c or other detachable means, carried by a ring-headed screw d.
Patent GB-1505051-A (GB)
Title: Liquid storage tank panels and tanks constructed therefro
IPC: B65D90/02
Filed: 1976-02-25
Abstract: 1505051 Panels for tanks A N S KULASINGHE 25 Feb 1976 07375/76 Headings E1B and E1T A square panel having angled cross section framing members 3 supporting a membrane 7, which has the form of a flexible membrane of negligeable shear strength secured in a shape peripheral frame and subject to a pressure difference across it, is used to form a liquid storage tank by joining the panels together at their edges e.g. by welding or bolting with the convex side of the membrane inwardly of the tank. The membrane may be metal or nonmetal. Where two or more panels are joined in the same plane the join may be tied to a similar join on the opposite tank side.
Patent GB-694494-A (GB)
Title: Improvements in or relating to sound-wave ranging apparatus
Inventor: GODFREY PETER
IPC: G01S7/52
Filed: 1950-03-24
Abstract: 694,494. Echo-sounding and distance-measuring apparatus. BIRMINGHAM SMALL ARMS CO., Ltd. April 13, 1951 [March 24, 1950], No. 7376/50. Class 118 (ii). In a sound-wave ranging apparatus utilizing a single electromechanical device for transmitting supersonic impulses into matter and for receiving echoes thereof, paralysis of the receiving amplifier due to the transmitted pulse is avoided by connecting the electromechanical device 9 across one arm 5 of a balanced bridge network 1, 3, 5, 7, the amplifier 13 being connected across the diagonal in which no current flows when a voltage is applied across the network. The impedances 1, 3, 5, 7 may be resistances and are preferably all equal in value. A high-voltage generating unit 11 which may contain a gas-discharge or other suitable thermionic valve Fig. 2 (not shown) supplies pulses to the network which cause the device 9 to transmit but do not affect the amplifier 13, which is therefore in a favourable condition to receive the echo signal from the device 9 which, being generated in one arm of the network, causes current to circulate in the network and thus affects the amplifier 13. A condenser 15 may be provided to overcome stray capacitance effects. In a construction illustrated in Figs. 3 and 4 (not shown) the bridge network is assembled within cylindrical passages formed in a brass box so that the whole is effectively screened and the connections are made as non-inductive and as non- mutually inductive as possible. Screwed plugs provide variable capacity to earth and the network is coarsely balanced by means of two sliders moving over resistances forming parts of the network. A fine balance may be obtained by providing one or more impedances with a high temperature coefficient of resistance and heating them by an auxiliary current. Alternatively the impedances may be formed from very thin wire and subjected to a variable mechanical tension to change their resistance.
Patent GB-145148-A (GB)
Title: Improvements in and connected with stop cocks or valves
IPC: F16K1/48
Filed: 1919-03-25
Abstract: 145,148. Butler, B., and Butler, W., (trading as Butler & Son, B.). March 25, 1919. Lift valves; leakage, preventing; repairs, facilitating. - The valve is actuated by a screwed rotary non - lifting spindle a having a circular square-edged collar a' working to a square shoulder and having a gland and packing a<3>, a<4>. The threaded spindle engages a guided barrel-shaped nut b formed with guide wings sliding in grooves to prevent rotation, the said barrel being formed with a collar b<4> which fits the bore of the upper part of the valve body and beds against the flat part b<6> of the casing to form a leak-tight joint in the open position of the valve. The valve seat d, which is screwed into the division web of the casing, is formed with a conical part d<1> fitting a. corresponding part e<1> in the web. A flange d<3> on the seat is formed with tool holes or gaps to facilitate the removal of the seat for repairs.
Patent GB-693790-A (GB)
Title: Improvements in and relating to framework for typewriters
IPC: B41J29/02
Filed: 1951-03-30
Abstract: 693,790. Typewriters. BIRCHMEIERS SOHNE, A. March 30, 1951 [May 6, 1950], No. 7428/51. Class 100(iv) Framework.-The space-bar 6 of a typewriter is accommodated in an oblong aperture 5 in the front link 3 of the typewriter framework. The framework is stamped from sheet metal with the edges of the space-bar aperture bent downwardly. Alternatively, the framework may be cast from a light metal.
Patent GB-1390935-A (GB)
Title: Microwave terminal and repeater stations
IPC: H01Q19/06
Filed: 1971-03-22
Abstract: 1390935 Aerials; radio signalling; radio receiving apparatus C & S ANTENNAS Ltd 21 March 1972 [22 March 1971] 7488/71 Headings H4A H4L and H3Q A microwave radio station comprises a container 10, Fig. 2, with. a side wall 14, a floor (18), Fig. 3 (not shown), a domed roof (20), and a supporting post (12). The side wall 14 is made of sheet steel and is of polygonal shape, having eight sides 16, in one of which is an aperture containing a circular plano-convex polyethylene microwave lens 22. The lens is supported on a mounting ring 24 from which four rods 26 extend into the container. A microwave transmitter 28, having a radiating horn 30 generally directed towards the lens 22, is adjustably mounted on the rods 26 by means of set screws 32. The axis of the horn 30 may be directed in a horizontal plane anywhere between the directions 34, which are the bisectors between the apertured side and the two adjacent sides. Similarly, the horn pointing direction may be adjusted vertically. The container 10 may be internally lined with graphite-loaded polyurethane foam, to absorb unwanted radiation, and radial flanges may be provided on the outside between the apertured side and the adjacent sides, to reduce any backwardly directed lobe. The transmitter 28 may be replaced by a receiver, or both a transmitter and a receiver may be provided in the case of a repeater station. Said transmitter and receiver may operate through a single lens at different angles, or respective lenses may be fitted in two sides of the container.
Patent GB-307500-A (GB)
Title: Improvements in smallarms
IPC: F41A15/12
Filed: 1929-03-07
Abstract: 307,500. LevÚ, C. A. T. March 9, 1928, [Convention date]. Addition to 271,413. Breech actions, sliding breech-block.-Relates to guns having a, fixed barrel and a sliding breechblock and provided with an extractor controlled simultaneously with a cartridge-feeding device, as in the parent Specification. According to the invention, the customary extractor operated by the firing hammer is used for the above purpose instead of a separate extractor. As shown, the customary extractor 14 pivoted at 15 and provided with a projection 32 for operation by the firing hammer is adapted to be locked by the arm 19 of a lever 17 on the breech-block 5 and to engage a tooth 36 on a control button 20. The lever 17 is always urged towards the extractor by a spring 18; but the tooth 36 is normally held away from a tooth 37 of the extractor by a spring 25 which tends to lift a plunger 26 provided with an inclined face bearing against a cam 22 on the pivot of the button 20. When the button is in the backward position with its tooth 36 away from the tooth 37 of the extractor, the gun must be loaded by hand, and when a shot is fired, the extractor 14 is turned to the operative position by the action of the firing hammer on its projection 32, and the extractor is retained in that position by the lever 17 so that the extractor can then remove the spent cartridge when the breech is opened. Near the, end of the backward movement of the breech-block, a projection 33 on the frame 1 of the gun deflects the lever 17 and releases the extractor 14 which is turned to its inoperative position by a spring 16. For automatic loading, the button 20 is turned to its forward position where its tooth 36 deflects the extractor to the operative, position and its cam 22 depresses the plunger 26; the extractor, by means of its tooth 37, holds the button in the forward position. After the firing of the shot, the cartridge, is extracted as before and, at the end of the backward movement of the breechblock, the lever 17 is deflected as before with the result that extractor, the button, and the plunger are released and returned to inoperative position; but before this occurs, the inclined bottom end of the plunger 26 strikes the similarly shaped upper end of another plunger 27 which, by means of a slot-and-pin connection 29, 30, deflects a pivoted latch 12, thereby releasing a spring loader 8. This pivots about a fulcrum 7 under the, influence of a spring 10 and lifts a fresh cartridge in grippers 11 on the loader 8 in line with the breech-block for insertion into the barrel by the next forward stroke of the breechblock. Similarly a loaded cartridge is removed from the barrel, by setting the button in the forward position and then opening the breech. A magazine with a follower may be used instead of the loader 8. The Specification as open to inspection under Sect. 91 (3) (a) describes also an arrangement of vertical and horizontal tenons. worked by a single lever for locking the breech-block in closed position. This subject-matter does not appear in the Specification; as accepted.
Patent GB-307501-A (GB)
Title: System of opening for compressed or liquid gas containers permitting their instantaneous emptying
IPC: F16K35/02
Filed: 1929-03-07
Abstract: 307,501. Lemoine, (nÚe Trouillet), R. M. L. March 10, 1928, [Convention date]. Lift valves: actuating- mechanism. -The discharge valve 7, Fig. 1, of a container for compressed or liquefied gas is connected with lost motion to the stem of a second valvelike member 16 held against the neck of the vessel by a lever 21 capable of being locked in position by a coacting lever 26. Release of the lever 26 allows the internal pressure to force along the larger member 16 which in its motion jerks the valve 7 open. According to the Specification as open to inspection under Sect. 91 (3) (a) Fig. 3 (Cancelled) shows the outlet closed by concentric valves 35, 40, 43 which are successively opened bv a screwed head 51 rotated by the pull of a cord. This subject-matter does not appear in the Specification as accepted.