baber/WOPTO huggingface dataset:
Patent GB-1299024-A (GB)
Title: Interruptor circuit
Inventor: WEISS JVERG
IPC: H03K17/60
Filed: 1971-05-03
Abstract: 1299024 Converting STANDARD TELEPHONES & CABLES Ltd 3 May 1971 12674/71 Heading H2F [Also in Division H3] In an inverter or chopper, a main transistor 1 has positive feedback via a transformer 2 so as to ensure rapid saturation when turned on and has a controllable impedance device, such as transistor 28, connected across two more windings of transformer 2 and arranged to present a low impedance when it is desired to turn off transistor 1, thus rapidly discharging stored carriers. As described, a positive-going half cycle of a square wave at 4 turns off transistors 21 and 28 so that the voltage induced in winding 24 of a ferrite-cored transformer 2 turns on the main transistor 1, initiating current in a load circuit 31, 32. Transistor 1 rapidly becomes saturated because of positive feedback via windings 23 and 24. Terminal 35 is biased negatively with respect to 36 during this time. The next half cycle of the input at 4 turns on transistors 21 and 28 thus, short-circuiting windings 25 and 26 and removing the input to transistor 1. The average value of current in transistor 1 may be controlled by pulse-width modulation of the input at 4. Modifications.-A further transistor 1 may be included if the circuit is to chop the output of an A.C. source. Two switching circuits as shown may be employed as an inverter.
Patent GB-116200-A (GB)
Title: Improvements in and relating to Tobacco Pipes.
Inventor: SPRY-PALMER JAMES
IPC: A24F1/08
Filed: 1917-09-05
Abstract: 116,200. Palmer, J. Spry-. Sept. 5, 1917. Tobacco pipes.-Relates to pipes provided with a trap to receive nicotine and moisture. In Fig. 1, the stem is shown formed with a smoke bore B, a nicotine trap E, and a space F, G, H to prevent saliva from passing through the bore B to the tobacco in the bowl. An end cap M packed with rubber &c. m closes the bores B, E. In Fig. 6, the bottom of the bowl of a bent pipe is shown recessed and fitted with a moisture trap m. In Fig. 7, the bores B, E are shown closed by a plug P and the stem fitting in a hole bored in the bottom of the bowl. In Fig. 9 the bores B, E are shown closed by separate plugs T, U.
Patent GB-252374-A (GB)
Title: Improvements in or relating to blow-pipe welding
IPC: B23K35/30
Filed: 1926-05-18
Abstract: 252,374. Passalacqua, A. May 23, 1925, [Convention date]. Void Published under Sect. 91 of the Acts]. Soldering.-A solder for aluminium consists of an alloy of aluminium, tin, zinc bismuth. cadmium, manganese, magnesium, and cobalt, or of tin, antimony, zinc, aluminium, magnesium, lead, sodium, phosphorus, and copper. In use, the aluminium surface to be treated is heated by a blow-pipe and scoured, the alloy is spread on the surface while continuing the scouring, a further quantity of the alloy is applied and lightly scoured, the heating is continued, and finally a suitable amount of the alloy for the required purpose is applied.
Patent GB-487978-A (GB)
Title: Improvements in and relating to slumber helmets or caps and like articles of head wear
IPC: A42B1/04
Filed: 1937-05-07
Abstract: 487,978. Caps; hair nets. JARRETT, RALNSFORD, & LAUGHTON, Ltd., and LAUGHTON, G. A. May 7, 1937, No. 13042. [Class fi3] [Also in Group XIV] A sleeping cap or hair net of openwork material has an edging e of ribbon or cord omitted at one portion of the edge. This portion is provided with a tubular portion g through which the two free ends h, i of the ribbon, or ties secured to them, are threaded in opposite directions in frictional engagement with each other to form draw strings.
Patent GB-557996-A (GB)
Title: Improvements relating to control devices for milking machines
IPC: A01J5/04
Filed: 1942-09-16
Abstract: 557,996. Cow-milkers. GASCOIGNES (READING), Ltd., GASCOIGNE, G. H., and KNOX, J. R. Sept. 16, 1942, No. 13073. [Class 84] [Also in Group XXIX] Milk from a cluster of teat-cups is collected by pipes 2 into a central cavity 5 in the valve casing 1 subjected to suction through the pipe 3. A capmember 6 contains nozzles 8 leading to the pulsation apparatus and to the nozzles associated with the teatcups. Milking having been completed and the valve 4 turned to the 'off' position, the pipes are cleared by admitting air. For this purpose the valve is lifted, a clearance 11 being provided between the valve and cap.
Patent GB-579644-A (GB)
Title: Improvements in or relating to hulls for motor-boats
IPC: B63B3/00
Filed: 1940-08-16
Abstract: 579,644. Motor boats. BRITISH POWER BOAT CO., Ltd., and SELMAN, G. S. Aug. 16, 1940, No. 13132. [Class 113 (ii)] A motor target or like boat, with a V-bottom 14, 15 and hard chines 10, comprises a cellular framework composed of transverse bulkheads 1 ... 4 extending from side to side of the boat, a transom 5, an even number of longitudinal bulkheads 6, 7, a stem 8, a keel 9 and gunwales 11, to which is secured a skin and deck 16, the engine 17, fuel tank 18, battery 19, and radio control gear 20 being arranged in cells of the middle row provided with removable covering means 24 allowing access to such driving and controlling equipment, and all the remaining cells being permanently closed to constitute buoyancy compartments. The bulkheads may be secured together by slotting and securing strips 23 in the corners. The buoyancy compartments may contain sponge rubber 22, aerated rubber, ping-pong balls, or like cellular material immediately below the deck. The sides 12, 13 and the bottom 14, 15 are covered with sheets of plywood, each sheet covering one. or more cells. A rearwardly directed cowl 25 provides air for the engine 17.
Patent GB-1279341-A (GB)
Title: Improvements in or relating to circular cold saws
Inventor: JAGERS LEOPOLD
IPC: B23D59/02
Filed: 1970-03-18
Abstract: 1279341 Sawing L JAGERS 18 March 1970 [19 March 1969] 13134/70 Heading B5L [Also in Division B3] A circular saw for metals comprises a saw blade 15 which has a substantially vertical feed motion, a turntable 7 which supports the saw blade and its drive, forms a workpiece support, and is adapted to rotate about a vertical axis relative to a base-plate 1, a horizontally adjustable clamping block 3a, Fig. 1, which extends over the turntable, and clamping strips 18a, 18b, Fig. 3, on each side of the saw blade joined by an arcuate member 19 and mounted on the base-plate 1 to co-operate with the block 3a for clamping the workpiece. The saw is characterized in that adjacent its upper edge the member 19 has an arcuate bearing surface 19a, Fig. 1, and the turntable 7 has an extension 10, a part 10b of which bears on the surface 19a in the zone of the saw blade plane, and a part 10a of which bears on the base-plate 1 at a substantial distance from the turntable axis. In the saw described, the blade 15 and its drive mechanism 13 ,14 are pivotally mounted by means of a bolt 11 on the extension 10 of the turntable 7. The turntable has a depending cylindrical portion carrying a ring 8, Fig. 1, which is engageable by a flange 4a of a sleeve 4 screw threaded in the base-plate 1. A surface 7a of the turntable rests on a surface 1c of the baseplate and rotation of the sleeve 4 by a handle causes the surfaces 7a and 1c to be urged together to lock the turntable at a selected angular position, e.g. for use in cutting mitres. A groove 21 in the turntable, and apertures 22 in the base-plate are provided for the discharge of coolant and swarf. The block 3a may form part of a vice 3 which is slidable along a groove 2 in the base-plate and can be clamped in any selected position.
Patent GB-638015-A (GB)
Title: House form assembly
IPC: B28B7/22
Filed: 1947-05-16
Abstract: 638,015. Moulds for precast houses. LE TOURNEAU, Inc., R. G. May 16, 1947, No. 13284. Convention date, May 17, 1946. [Class 87 (ii)] [Also in Groups XXX and XXXII] A mould for casting a complete concrete building or a section thereof in a single unit comprises a contractible inner form 37, Fig. 13, and an expansible outer form 9 which with the moulded structure 63 therein is adapted to be raised clear of the inner form. The outer form is mounted in a self-propelled yoke 1, Fig. 1, supported on pneumatic tyred wheels 4, for movement to the desired building site when the concrete has set. Electrical winches 20 are mounted on pivoted frames 11 adjusted in position by guy-bars 18 adjusted in length by hand cranks 16 to allow for exact positioning of the building on the site. The contractibility of the inner form to allow it to be released from the concrete is provided by hingeing the walls 40, 41 at adjacent ends 47 and dividing them centrally at 48, the parts being connected by triangular plates 53 on the ends of links 52. The links 52 are connected to actuator plates 51 fixed on an electrically rotated shaft 50. The inner form rests on a base 38, Fig. 13, which also supports a frame carrying a plate on which the roof of the building is moulded and also supports the outer form 9. The sides and ends of the outer form meet at mitred ends having a guiding pin and are separated to release the mould from the concrete by toggle links operated by a lever. Window and door frames are bolted to the forms by means of bolts which can be removed to allow the forms to be separated from the concrete. Reinforcing mesh, electric conduits &c. are embedded in the walls of the building.
Patent GB-163304-A (GB)
Title: The process of manufacturing anhydrous chlorides of alkaline-earth metals
IPC: C01F11/28
Filed: 1921-05-10
Abstract: Relates to a process for the manufacture of anhydrous alkaline-earth chlorides by adding ammonium chloride and the oxide, hydrate, carbonate, or oxychloride of the alkaline earth metal to a melt of one or more haloid salts of a metal electropositive to the alkaline earth metals, such as a mixture of sodium and potassium chlorides, and collecting the ammonia or ammonium carbonate evolved.  The ammonium chloride may be 10 to 20 per cent in excess of the theoretical quantity.  The ammonia or ammonium carbonate is converted into ammonium chloride for re-use by combining it with hydrochloric acid obtained by passing a mixture of chlorine and steam over carbon heated to 300 DEG  C.ALSO:Calcium, magnesium, and other alkaline earth metal chlorides in anhydrous condition suitable for electrolysis are obtained by adding ammonium chloride and the oxide, hydrate, carbonate, or oxychloride of the alkaline earth metal to a melt of one or more haloid salts of a metal electro-positive to the alkaline earth metals, such as a mixture of sodium and potassium chlorides, and collecting the ammonia or ammonium carbonate evolved. The ammonium chloride may be 10 to 20 per cent in excess of the theoretical quantity.  The ammonia or ammonium carbonate is converted into ammonium chloride for re-use by combining it with hydrochloric acid obtained by passing a mixture of chlorine and steam over carbon heated to 300 DEG  C.
Patent GB-133134-A (GB)
IPC: A63H27/00
Abstract: 133,134. Dewick, B., and Caddy, D. B. Sept. 28, 1918. Table games.-In a game apparatus wherein projectiles are dropped on to a map or chart, a rotary arm C, driven by manual means G or by power-driven mechanism, or by rotating the arm directly by hand, carries a projectile-dropping device, for example a representation of an aeroplane, suspended by flexible connexions E. A magazine H carries the projectiles, which are released singly by an electro-magnet L each time the player depresses a key R. The various representations on the map or chart are given different values, and the player rotates the arm C at such a speed, and operates the key R at such a time, as to hit the representations and obtain as many points as possible. The projectiles may be weighted darts or mail-bags, or may be designed to leave a mark, or burst where they fall. The arm C may extend on the other side of the spindle and carry a second aeroplane. Instead of releasing the projectiles by electro-magnetic means, a mechanical release consisting of a systern of links may be provided, the aeroplane being, in this case, rigidly secured to the arm C.
Patent GB-913533-A (GB)
Title: Improvements in and relating to feed water heaters
Inventor: PETERS WALTER ERNEST
IPC: F22D1/32
Filed: 1960-04-14
Abstract: 913,533. Feed water - heating systems. ENGLISH ELECTRIC CO. Ltd. April 11, 1961 [April 14, 1960], No. 13324/60. Class 64 (1). In a multi-stage feed water system having an integral drain cooling system in which hot water drained from a higher pressure heater is flashed into steam in a flash box 10, the flashedoff steam is condensed in a sealed section 8 of the next lower stage heater casing 1 which is at a pressure between that of the said two feed water-heaters, the condensate from this sealed section and water from the flash box 10 being discharged into the casing 1 and, together with condensate of bled steam entering the casing through an inlet 6, is drained off through a pipe 7 which may discharge into the flash box of a still lower pressure heater (Fig. 2, not shown), the feed water to be heated enters the heater via the inlet 3 and is passed through a conventional nest of tubes 5 which pass through the sealed section 8 before reaching the outlet 4. The condensate in the sealed section 8 is discharged into the casing 1 through the U- pipe 15 and orifice 16, the difference in level between the orifice 16 and the bottom of the sealed section 8 corresponds to the difference in pressure between the sealed section and the casing.
Patent GB-763007-A (GB)
Title: Improvements relating to loading and discharge systems for ships
IPC: B63B27/34
Filed: 1954-05-07
Abstract: 763,007. Quay appliances for loading and unloading fluid cargoes. BRITISH TANKER CO., Ltd., HUTCHISON, W. M., and HOPKINS, K. W. May 5, 1955 [May 7, 1954], No. 13344/54. Class 78 (4). Fluids are loaded into and discharged from ships by metal pipes 14 suspended e.g. from a derrick 23 on the quay 11, and joined by flexible pipes 16 and 17 to piping 10 and 13 on the quay 11 and ship 12 respectively. As illustrated, separate loading and discharging pipes 14 for carrying fuel oil are provided and are joined by members 15 welded to the pipes 14 which are supported from independently winched cables 21, 22. Three lengths 17 of flexible piping connect the upper ends of the pipes 14 to the tanker pipes 13 and a metal cradle 20 supports the flexible hoses 17 near the pipes 14. The lengths of pipe and hosing are joined by metal flanges 18, 19.
Patent GB-133773-A (GB)
IPC: B23F17/00
Abstract: 133,773. Richards Thread Milling Machine Co., and Richards, G. Oct. 16. 1918. Shaping. - Thread-milling hobs or cutters are backed off in a machine in which the reciprocating tool H is given a lateral movement while the hob J is intermittently rotated. The lateral movement of the tool-slide B is obtained from a shaft N rotated by a ratchet-wheel P and pawl actuated bv a cam Y on the rotating shaft X. The shaft N carries a screwed sleeve K, interchangeable for various pitches of hob, and engaging a nut adjustable with reference to the slide B by nuts 3. The cross-slide C its mounted pivotally for adjustment to the angle of the helix on the hob, and is reciprocated by a cam D and barrel-shaped tumbler E kept in engagement by a spring. Gear-wheels Q, R, which may have helical teeth, transmit to the hob spindle in intermittent rotary motion, and the spindle bracket T is pivotally mounted so that it can be tilted vertically to cut taper hobs. Bach-lash in the feed is prevented by a weight on a cord p passing over the pulley P<1>.
Patent GB-1390406-A (GB)
Title: Article identification apparatus
IPC: G06K7/10
Filed: 1972-04-21
Abstract: 1390406 Optical scanner RCA CORPORATION 21 April 1972 [30 April 1971] 13387/74 Divided out of 1390404 Heading G4M  The disclosure is the same as that of parent Specification 1,390,404 and Specification 1,390,405 and 1,390,407. The claims are directed to a reading system which detects whether the scan has gone through the centre of a pattern correctly.
Patent GB-133907-A (GB)
IPC: F01L15/08
Abstract: 133,907. Smith, A. R., and Pirie, J. April 28, 1919. Slide valves, cylindrical and piston.-In a compound engine, the pistons work in adjacent cylinders, are connected to the same crosshead and are controlled by a common piston valve 7 with a central groove 5<a> which puts the steam supply f into communication with ports g, h leading to the ends of the high pressure cylinder, and grooves connected by channels 6<a> which put the ports g, h into communication with the low-pressure cylin. der ports k, e through which the exhaust passes beyond the ends of the valve to the outlet.
Patent GB-1283882-A (GB)
Title: Adjustable pedal arrangements
Inventor: GIBAS JACK EDWARD
IPC: G05G1/30
Filed: 1972-05-06
Abstract: 1283882 Vehicle control pedals GENERAL MOTORS CORP 6 May 1971 [26 May 1970] 13405/71 Heading B7H Brake pedal 32 and accelerator pedal 64 are adjustable in a fore-and-aft direction by means of nuts, e.g. 36, mounted in the upper ends of the pedals and which receive screws 24, 52 rotatable in brackets 16, 38. Bracket 16 is part of two-armed lever 14, 16 which is pivoted at 12 to the vehicle body 10 and to which is attached at 18 brake actuator rod 20. Bracket 38 for the accelerator is rigidly attached to the vehicle body 10. The forwardly projecting end 56 of screw 52 carries gear teeth which mesh with the drive shaft 86 of a reversible electric motor 84. A flexible drive 90 may be used to transmit the rotary motion from screw 52 to screw 24.
Patent GB-134532-A (GB)
IPC: A63H3/44
Abstract: 134,532. Goldman, I. Oct. 26, 1918, [Convention date]. Dolls.-Relates to a method of arranging artificial or real hair on dolls' heads. The doll is made with a complete head which is coated with fluid adhesive. A strand or bunch of hair is then applied so that the ' root ' ends adhere to the desired extent, and free ends are manipulated in the manner required for a particular coiffure, other portions of the hair being brought into contact with the adhesive. Successive strands or bunches of hair are applied in a similar manner so as to overlap those previously applied. The hair may be temporarily covered by a veil 3 as shown in Fig. 3.
Patent GB-411279-A (GB)
Title: Improvements in and relating to fire extinguishing apparatus
IPC: A62C99/00
Filed: 1933-05-09
Abstract: 411,279. Fire-extinguishing. C-O-TWO FIRE EQUIPMENT CO., 3700, East 9th Street, Los Angeles, U.S.A.-(Assignees of Alien; S. E. ; 560, Belmont Avenue, Newark, New Jersey, and Wiswell, O. N.; 3700, East 9th Street, Los Angeles, both in U.S.A.) May 9, 1933, No. 13509. Convention date, May 9, 1932. [Class 47 (ii).] 1 A nozzle for discharging carbon-dioxide in solid form comprises a body 17 formed with a passage 14 for the fluid carbon-dioxide and with an expansion chamber 20. The fluid discharges into the chamber through a restricted jet 22. A cup-shaped baffle 16 is spaced away from the front of the expansion chamber, as shown. The expanded gas is deflected laterally by the baffle and converted into solid form. The body 17 is shaped to facilitate handling of the nozzle, and has a flange 18 to which a directing conduit 27 is secured. In a modification, the baffle is in the form of a simple disc and is perforated, and the conduit 27 is convergent. In another modification, the expansion chamber in the body 17 is dispensed with, and the baffle is spaced away from the jet 22 to provide for expansion of the carbon-dioxide. Specification 403,278 is referred to.
Patent GB-996393-A (GB)
Title: Jet propulsion engine
Inventor: PALFREYMAN JACK
IPC: F23R3/22
Filed: 1963-04-04
Abstract: 996,393. Jet propulsion nozzles; generating combustion products under pressure. ROLLSROYCE Ltd. March 6, 1964 [April 4, 1963], No. 13515/63. Headings F1J and F1L. In a jet propulsion engine, a movable device exposed to the engine jet gases, is provided with at least one nozzle and means for supplying the nozzle or nozzles with pressurised gas which, on issuing therefrom, effects movement of the device by jet reaction. The invention is described with reference to a gas turbine jet propulsion engine, Fig. 1 (not shown), having a plurality of flaps constituting a variable area jet nozzle. Each flap 15, Fig. 2, is pivotally mounted at 16 in the turbine exhaust outlet 14 and comprises two compartments 20, 21 terminating in oppositely facing nozzles 22, 23. Air from the engine compressor may be supplied through a control valve, Fig. 3 (not shown), to either nozzle. Each flap may have a plurality of separate inwardly and outwardly facing nozzles, Fig. 4 (not shown). Fig. 5 shows a flap 15 provided with gutters 46 which form part of reheat combustion stabilizing equipment. In a further modification, Fig. 6 (not shown) alternate flaps are respectively provided with oppositely facing nozzles and each flap overlaps the adjacent two flaps so that movement of the one causes movement of the adjacent two. As shown in Fig. 7, the variable area exhaust nozzle may include means for balancing the outwardly directed force exerted on each flap by the turbine exhaust gases. Compressed air is supplied to the space 57 enclosed by two slidably engaging walls 55, 56 carried by the flap 54 and the exhaust outlet 14 respectively.
Patent GB-440309-A (GB)
Title: Improvements in and relating to small electric motors
IPC: H02K1/17
Filed: 1935-05-08
Abstract: 440,309. Motors. GROSS, E., 1, Potsdamerplatz, Berlin. May 8, 1935, No. 13540. Convention date, July 12,1934. [Class 35] The field system of a small electric motor particularly for use with a pocket lamp battery consists of two soft iron pole-shoes 6 in the form of hollow cylindrical segments of a length determined by the length of the armature 1 and of one or more bars 7 of high coercivity magnetic material which connect the poleshoes at one end. The pole-shoes are secured to a nonmagnetic casing 4 and two bar magnets 7 are pressed apart and against the pole-shoes by brass or other non- magnetic V-shaped springs 8. The lower part of the casing is closed by an insulating plate 11 spaced from the pole-shoes by a brass ring 12 and secured by rolling over the rim of the casing at 13. The plate 11 carries four bolts 14, 141, 15, 151 electrically connected in pairs by strips 16, 17 formed with terminal lugs 18, 19. Contact levers 20, 20<1>, 21, 21<1> constituting commutator brushes are pivoted to the bolts and the levers of a pair are pressed on to the commutator by a common spring 22, 23. The arrangement is such that the contact levers of each pair touch the commutator 9 at angularly displaced points so that the circuit is never interrupted.
Patent GB-360397-A (GB)
Title: An improved cover for childrens' beds
IPC: A47D15/02
Filed: 1930-05-02
Abstract: 360,397. Bed coverings. HEUSS, O. G. K., 51, Mainzerstrasse, Bingen, Germany. May 2, 1930, No. 13548. Convention date, May 18, 1929. Void [Published under Sect. 91 of the Acts]. [Class 142 (iv).] A cover 1, which is fastened by strings &c. to a child's cot &c., has reinforcing rods 2b at its longitudinal edges to prevent undue displacement of the cover. The strings &c. may pass through eyeleted holes in the rods or in the cover.