baber/WOPTO huggingface dataset:
Patent GB-960054-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
IPC: F02B75/02
Filed: 1962-04-26
Abstract: 960,054. Two-stroke engines. W. R. LONGCROFT-NEAL. March 21, 1963 [April 26, 1962], No. 15903/62. Heading F1B. In a two-stroke I.C. engine having a coaxial cylindrical extension 10, Fig. 1, beyond the cylinder head 7, and a transfer passage 15 in a piston rod 5 interconnecting working and auxiliary pistons 4 and 14, working fluid is drawn into at least one admission port 12 in the peripheral wall of the extension 10 into space 18 and then transferred into cylinder 1 as the piston rod is reciprocated through the cylinder head. In the t.d.c. position as shown in Fig. 1 the auxiliary piston 14 has opened port 12 to admit working fluid to space 18, the transfer passage 15 is closed and the exhaust port 3 is shut off by piston 4. After ignition, the piston 4 moves towards b.d.c. and one port 16 emerges from cylinder head 7 to effect transfer of the working fluid from space 18 to cylinder 1 the exhaust port 3 being opened and admission port 12 being closed. In another embodiment arranged as a double acting engine the extension 10, Fig. 3 is arranged between coaxial cylinders 1, 1<SP>1</SP>, and piston rod 5 interconnects both working pistons 4, 4<SP>1</SP>, and the auxiliary piston 14. Fuel/air mixture may be drawn into admission port 12 and the engines may be arranged for spark ignition or fuel injection. The cylinder head cooling fins may be omitted.
Patent GB-795355-A (GB)
Title: Method and apparatus for milling and classifying materials
IPC: B02C17/18
Filed: 1955-06-03
Abstract: 795,355. Grinding; pneumatic separating. HARDINGE, H. June 3, 1955 [June 14, 1954], No. 15954/55. Classes 59 and 117 A process of comminuting and separating asbestos rock, coal ores and other material consists in feeding the material to a mill 10, Fig. 2, and subjecting the material discharged therefrom to a primary gaseous current adapted to entrain therein the finer comminuted particles, the coarser particles not so entrained being subjected to an auxiliary gaseous current which separates from them any finer remaining particles for entrainment in the primary current. The mill, which may be a ball or rod mill or one which discharges wholly or partially by gravity, is shown in Fig. 2 as a ball mill consisting of a rotary drum having hollow trunnions constituting the inlet 16 and exit 18 of the mill, the inlet and exit are connected in a closed conduit circuit 22, 28, 30 including a fan or blower 26, separator 20, classifier 68 and waste collector 24; valves 34, 36 in an exhaust vent 32 and inlet conduit 30, respectively, serve to regulate the air stream 48. The inlet 16 is fitted with a feed spout 38, and the outlet 18 is provided with a grate 42 for preventing the passage of the balls and large pieces of material and a helical blade 44 co-operating with a scoop 46 for returning the coarser particles of material to the mill The separator 20 consists of a throat 50, Fig. 12, connecting the exit 18 with the-lower end of the suction conduit 22, and a depending outlet 52 for the downward passage of the. coarser and heavier particles 54 from the air stream. The lower end of the outlet 52 is controlled by a counterweighted and pivoted valve 60 which is maintained open to a predetermined extent to provide an upward flow of air but can be opened further by the downward flow of coarse material. The throat 50 and outlet 52 are formed of telescopically-slidable members 72, 74, 76 which may be set to vary the crosssections of the throat and outlet independently of each other. The air stream passing up the conduit 22 contains, in addition to a substantial percentage of the fine useful products 56 (e.g. asbestos fibres), a proportion of the finer particles of waste material dependent partly upon the setting of the valve 60 and partly upon the degree of constriction of the throat and outlet provided by the members 72, 74, 76; the upward flow of air in the outlet 52 separates out from the falling coarse material 54 for discharge into the conduit 22 any fine particles of usable material and a desired range of waste particles depending upon the degree of constriction of the passages. A conveyer 80 beneath the outlet 52 takes away the coarse material. The classifier 68 is not an essential part of the apparatus and the air circulating system need not be of closed type.
Patent GB-1308693-A (GB)
Title: Circuit arrangement for indicating the failure of a lamp
IPC: H05B37/03
Filed: 1970-04-03
Abstract: 1308693 Lamp failure alarm PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 3 April 1970 [8 April 1969] 15963/70 Heading G4N A device for indicating whether either one of two lamps 3 or 4 has failed, comprises a bridge with limbs containing resistors 5, 6, and 7, and the lamps 3 and 4. One diagonal of the bridge is connected across the base-emitter circuit of transistor 9 so that the transistor which is normally non-conducting becomes conducting when one lamp of 3 or 4 fails. This causes thyristor 12 to conduct and indicator lamp 13 to be activated.  In a second embodiment switch 8 is placed between the junction 19 and the junction between the limbs 5 and 7 of the bridge, so that lamp 13 remains activated whatever the condition of switch 8.  In a third embodiment two sets of lamps 3 and 4 are connected into two bridges, the bridges having the limbs 5 and 6, and transistor 9 common. The two circuits are isolated by means of diodes (200) and (20), Fig. 3 (not shown).
Patent GB-1365889-A (GB)
Title: Spark ignition internal combustion engines
IPC: F02M7/17
Filed: 1971-05-20
Abstract: 1365889 Spray carburetters; ventilating I C engine crank-cases BRITISH LEYLAND (AUSTIN-MORRIS) Ltd 7 Dec 1971 [7 Feb 1971 20 May 1971] 58034/70 and 15972/71 Headings F1B and F1K To prevent the delivery of fuel into the carburetter induction passage 13 when the engine is switched off after running the space 18 in the fuel chamber 12, e.g. a float chamber, is connected to a source of vacuum rather than the normal vent, e.g. to atmosphere. The space 18 is normally connected through tubes 19, 22, orifices 29 and 30 in the solenoid valve 20, and the evaporative loss canister 22a to atmosphere but when the engine is switched off after running the switch 31 is closed and the solenoid 23 is energized to connect the tubes 19 and 21 and move the valve head 26 to seal orifice 29. A switch 33 in the solenoid circuit is responsive to engine oil pressure and opens the circuit when the oil pressure has fallen below a predetermined value. In a further embodiment, Figs. 2 and 3 (not shown), the solenoid valve 20 has spaced valve heads (26, 62) which co-operate with respective seats (28, 63) and in the unenergized state the valve connects the carburetter float chamber space 18 to atmosphere. A canister (51) containing carbon granules (53) is connected between the valve and the space 18 and a space (54) in the canister is also connected to the engine rocker box cover (57) and the space above the fuel level in the fuel tank 60 by respective conduits (56, 59). When the valve 20 is energized the space 18 is connected to the engine intake manifold through a valve outlet (64).
Patent GB-1211119-A (GB)
Title: A laser system
IPC: H01S3/101
Filed: 1968-04-03
Abstract: 1,211,119. Scanning lasers. INTERNATIONAL BUSINESS MACHINES CORP. 3 April 1968 [28 April, 1967], No. 16015/68. Heading H1C. A laser 8, having a partially light transmitting resonator reflector 5a and elements 5, 7 for selecting a particular spatial mode, is associated with a light amplifier 10, which amplifies light which is transmitted through reflector 5a and reflects the amplified light back into laser 8. As a result the energy density within laser 8 prior to selection of a particular mode is relatively high and the delay in the production of the selected mode after actuation of the selection elements is reduced. Elements 5, 7 each Consist of a stack of laminar electro-optic crystals, the crystals in the two stacks extending in mutually perpendicular directions. Also included in laser 8 are lenses 2, 3 and-a polarizer 6. Initially a voltage is applied to all the crystals in both stacks so that light from active medium 1, after being plane polarised by polarizer 6 becomes elliptically polarized by element 7. The light reflected from 7a then loses energy in passing through polarizer 6, a similar process occurring with element 5. Light passing through element 5 and reflector 5a, however, is amplified before being returned to the main resonator. The energy density in the cavity is thus maintained just below the laser threshold for each mode prior to selection. To select a mode the bias voltage is removed from one crystal in each stack so that the selected mode does not become elliptically polarized in elements 5, 7. The losses having been thus reduced this mode is amplified and the lasing threshold is rapidly exceeded.
Patent GB-848318-A (GB)
Title: Apparatus for automatically post-cure inflating nylon reinforced tires
IPC: B29D30/06
Filed: 1959-05-11
Abstract: 848,318. Tyre-moulding machines. GOODYEAR TIRE & RUBBER CO. May 11, 1959 [May 29, 1958], No. 16028/59. Class 87(2). Nylon-reinforced tyres are moulded in a conventional dual tyre moulding machine and ejected by rollers 22, 23 into containers 29a, which are then hoisted up a track 36 by a cable 39 until the track deposits them on a conveyer 46. A retractable stop 47 holds the tyres between rims 50, 51 which are then closed and the tyres inflated through a hole 55, whilst the tyres are cooled by water sprays 56. In a modification, Fig. 7, the tyres are inflated whilst mounted on rims in containers 81 and cooled by water sprays 86, 87. After cooling, the tyres are swung upwardly on to a conveyer 92 by an arm 62. In a further modification, the containers 81 and the water sprays may be mounted above the press.
Patent GB-898451-A (GB)
Title: Improvements in or relating to dual-purpose agricultural machines
Inventor: BAKER JAMES REUBEN JOHN
IPC: E02F9/14
Filed: 1958-05-19
Abstract: 898,451. Hedge-cutters. WHITTINGTON ENGINEERING CO. Ltd. Aug. 18, 1959 [May 19, 1958], No. 16057/58. Class 6(2). [Also in Group XXI] A hedge-cutting unit of the type comprising fixed and reciprocating cutters, is detachably mounted on a jib 13 extending laterally from the side of a tractor, the jib being capable of pivoting in both horizontal and vertical planes. The jib is supported by a framework comprising members 1 and 2 fixed by bolts 3 to the tractor axle, and by bolts 7 to a base plate 5 secured to the tractor bed plate. A pedestal 8 is mounted at the outer end of the base plate for rotation about a vertical axis, and supports a shaft 11 which provides a horizontal pivot-axis for two channel members 12 mounted on the shaft 11 and to which the jib 13 is bolted. Drive to the cutting unit is transmitted from the tractor power take-off shaft 30 via a telescopic drive shaft 27, to a belt pulley 31 on an extension of the shaft 11, and from thence to a further belt pulley provided on the detachable cutting unit. The jib is connected at its outer end to a telescopic spring-loaded supporting arm 22 which is adjustable vertically about the pivot 23 by means of the winch and cable mechanism 15, 18 simultaneously causing the jib 13 to pivot about the axis of the shaft 11. Specification 898,452 is referred to.
Patent GB-759496-A (GB)
Title: Improvements relating to electrical fuse assemblies
Inventor: HUNT JOSEPH JAMES HOLMES
IPC: H01H85/20
Filed: 1953-06-11
Abstract: 759,496. Distribution fuse box. SIMPLEX ELECTRIC CO., Ltd. June 11, 1954 [June 11, 1953], No. 16058/53. Class 38 (1). The neutral bus-bar 17 in a fuse box is carried by insulating members 16 screwed to the insulating fuse bases 13, as shown, or the members may be integral with the bases, an insulating member 26 being interposed between the members 16 and the fuse bases to shield bar 17 in case a fuse blows. The fuse bases are secured to a member 15 detachably secured to bearers 11 in the fuse box. Cable-clamping holes and screws are provided in the bar 17, and terminals 19 at one end of the fuse-retaining cavities 18 are strapped together by bus-bars 32.
Patent GB-1068647-A (GB)
Title: Improvements in devices for the elimination of condensate from rotary drying drums
Inventor: HANF HUBERT
IPC: F26B13/18
Filed: 1965-04-14
Abstract: 1,068,647. Hollow rollers. ETABLISSEMENTS NEYRPIC (Ateliers Neyret-Beylier et Piccard-Pictet). April 14, 1965, No.16088/65. Heading F2U. A horizontal drying drum 1 heated by steam has a scoop 2 for removing condensate 14; the scoop is connected to the drum shaft by arm 4 and by a tube 5. Condensate enters a slot 8, passes over sill 9 and accumulates in pocket 10; steam also passes through slot 8 and flows through orifice 11 causing an ejection effect which entrains the condensate into the drum shaft for discharge. As the orifice 11 is wholly below the level N of condensate in pocket 10 it limits the flow of steam.
Patent GB-237082-A (GB)
Title: Improvements in or relating to cooking utensils for hams, gammons, and like joints
IPC: A47J27/20
Filed: 1924-07-05
Abstract: 237,082. Garlick, A. E. July 5, 1924. Pressing - and - cooking apparatus.-A vessel for cooking hams, gammons, &c. is formed with an eccentrically disposed foot 2 to receive the knuckle end, a U-shaped leg 13 being provided to enable the vessel to stand upright. The cover 4, which is attached by means of wing-nuts and bolts 10 disposed in lateral slots in the flange and adapted to engage in bayonet slots 12 in the upper edge of the body, carries a depending, spring-pressed plate 5. the spring being housed within a casing 9 and adapted to cause by its pressure flattening of the larger end of the ham, &c.
Patent GB-566638-A (GB)
Title: Heating nozzle for use with cutting blowpipes
IPC: F23D14/54
Filed: 1943-10-04
Abstract: 566,638. Blow-pipe burners. JENSON, J. Oct. 4, 1943, No. 16204. [Class 75 (i)] A heating nozzle for use in substitution for the cutting nozzle of a cutting blow-pipe burner comprises a tubular inner member 1 threaded or otherwise secured in the cutting oxygen orifice of the blow-pipe head and an outer sleeve 2 secured at one end to the blow-pipe head and at the other formed with a number of holes or slots F. The oxygen supplied through the cutting orifice in the blow-pipe head passes through radial or inclined holes B at the end of the member 1 and mixes with the fuel gas supplied through the blow-pipe head to the annular space surrounding the member 1 before discharge through the holes F. The inner member may be formed or fitted with a diaphragm D closely fitting the sleeve 2 and formed with axial or inclined passages E.
Patent GB-239646-A (GB)
Title: Improvements in or relating to cabinet gramophones
IPC: G11B3/00
Filed: 1924-07-08
Abstract: 239,646. Barnett, H. T. July 8, 1924. Tone-arms, balancing. -The tone-arm of a cabinet gramophone is fitted with a counterweight of one to twc pounds in concentrated form to reduce the load on the needle and steady the tone-arm so as to improve the definition. The weight is formed as an annular segment which may be soldered to the tone-arm or be secured to a ring to surround and fit tightly on the tone-arm. Alternatively, the weight A may be secured to curved clamping arms B adapted to be clamped on the tone-arm by a screw passed through the ends C. The weight may be cast in lead and its top back edge may be chamfered to clear the cabinet lid. Specification 142,233 is referred to.
Patent GB-1336895-A (GB)
Title: 9beta,10alpha-steroids and a process for the manufacture thereof
IPC: C07J1/00
Filed: 1971-05-21
Abstract: 1336895 9#,10α-Steroids F HOFFMANNLA ROCHE & CO AG 21 May 1971 [21 May 1970 (2)] 16378/71 Headings C2U and C2C The invention comprises compounds of formula (wherein R is C 2-8  alkyl), and their preparation from compounds of formula (wherein R<SP>1</SP> and R<SP>2</SP> are each H or Me, at least one being Me) by the successive steps of: (i) protecting the two oxo groups (e.g. by ketalization, heteroketalization, or reduction to hydroxyl groups which are then esterified or etherified); (ii) hydrogenation to give a compound of formula  (iii) treatment with a strong base to give a compound of formula (iv) regeneration of the free oxo groups; and (v) cyclization of the resulting trione. Steps (iv) and (v) may be effected in a single step when employing a mineral acid. Compounds of Formula II and antecedents thereof are as described in Specifications 1,336,896 and 1,298,212. Pharmaceutical compositions for oral, parenteral, rectal and topical administration comprise a carrier and a compound of Formula I. The type of activity of the latter is not specified.
Patent GB-874035-A (GB)
Title: Improvements in and relating to dish washing machines
IPC: A47L15/42
Filed: 1958-05-21
Abstract: 874,035. Dish washing machines. WITHERS K. R. July 29, 1959 [May 21, 1958], No. 16379/58. Class 138(1). In an electrically operated dish washing machine which is automatically controlled by timing means to perform in sequence the steps of feeding a predetermined quantity of washing or rinsing liquid into the machine, circulating the liquid whilst heating it, and then discharging the liquid, and repeating the cycle if desired, the timing means is interrupted by a thermostat to extend the duration of the washing or rinsing step each time the temperature of the liquid falls below a predetermined minimum value. The timing device comprises a cam operated switch (not shown) which is initially closed manually to energize a solenoid valve 6 to admit washing or 'rinsing liquid through an inlet 3 into a reservoir 5. When the liquid reaches a predetermined level in the reservoir 5 a floatoperated switch in a communicating chamber 7 is actuated to complete a circuit through an electric heater 13 and a pump 17. The latter then withdraws liquid from the reservoir 5 to pass it through the chamber 8 containing the heater 13, and to discharge it on to the dishes (not shown) in a container 2 via a solenoid valve 20, pipe 18, and spray nozzles 19 rotating about the pipe 18. When the liquid passing through the chamber 8 reaches a predetermined value a thermostat 14 completes the circuit through a motor (not shown), driving the cam operating the timing device. On completion of the washing or rinsing stop the solenoid valve 6 is de-energized and the cam operates a further switch to actuate the solenoid valve 20 to connect the pump 17 to a drain 4. In the event that the temperature of the liquid passing through the chamber 8 falls below a predetermined value the thermostat 14 breaks the circuit to the motor driving the timing cam until the temperature rises to the desired value.
Patent GB-815528-A (GB)
Title: Electron tube apparatus
IPC: H01J25/24
Filed: 1956-09-18
Abstract: 815,528. Discharge apparatus. VARIAN ASSOCIATES. Sept. 18, 1956 [Oct. 21, 1955], No. 16395/58. Divided out of 815,527. Class 39(1). Electron tube apparatus employing an internal cavity resonator 12 interacting with an electron beam, and an external cavity resonator 13 electrically coupled to the internal resonator, is provided with an output iris 23 for coupling the external resonator to the external load, having a capacitive iris-loading member 27 projecting into the vicinity of the opening 23 for tuning the opening and thereby controlling the coupling between the tube and the load. The series resistance of the iris equivalent circuit may be reduced by milling the output flange member 22 to provide a thin walled portion 28 in the vicinity of the iris. Additionally the member 27 and the resonator 13 may be plated with material of good conductivity e.g. gold or silver. As shown a further iris 18 having wave-energy permeable material 19 sealed over it to form a vacuum tight closure is provided between the internal and external resonators. Specifications 815,526 and 815,529 also are referred to.
Patent GB-582291-A (GB)
Title: Improvements in linear dimension gauges
IPC: G01B5/08
Filed: 1944-09-01
Abstract: 582,291. Linear - dimension gauges. PARKER ENGINEERING SERVICE, Ltd., and PARKER, C. J. Sept. 1, 1944, No. 16645. [Class 106 (ii)] An internal gauge comprises a tubular casing, in two or more parts adjustable longitudinally relative to one another and having contracted open ends, terminal contact elements enclosed within the casing so as to protrude through said open ends, land one or more loose and removable distance pieces to maintain the terminal contact elements in definite location. In the form of a combination " go " and " not go " gauge, as shown, each of the two gauges A and B comprises two metal tubes 1 having contracted ends 8 and enclosing steel contact balls 9, steel cylinders 10 and one or more distance pieces 11, of any readily workable material, which may be reduced in length to provide the required gauging distance between the contact balls. The tubes 1 are adjusted within sleeves 2 to take up the play between the contact balls and distance pieces, the sleeves being joined by spaced web members 4 of heat-insulating material. The space between the web members is filled with compressible material 5 and screws 6 are provided to release or clamp the tubes 1 in the sleeves 2. Additional sleeves and web members connected by pairs of tubes may be used to lengthen the gauge and the distance pieces may comprise tubes with stepped cylindrical terminal members. To test the diameters of deep holes, a single gauge maybe fitted with a perpendicular handle extending from a central web member. The contact members may be of cylindrical form with hemispherical ends.
Patent GB-764865-A (GB)
Title: Improvements in and relating to the manufacture of bonded fibre fabrics
Inventor: ELLIOTT GORDON HENRY
IPC: D04H1/645
Filed: 1954-06-04
Abstract: 764,865. Bonded fibre fabrics. BRITISH CELLOPHANE, Ltd. May 27, 1955 [June 4, 1954], No. 16660/54. Addition to 695,805. Class 140. Bonded fibre fabrics are made by laying a first carded web with its fibres disposed longitudinally, applying one or more carded webs cross-laid at an angle and each doubled back repeatedly at the edges of the first web so that the cross-laid web or webs form a layer of uniform thickness, laying a final carded web parallel to the first web so as to sandwich the cross-laid web or webs, and bonding the assembly with a rubber or rubber-like material, e.g. natural rubber, balata, or a butadieneacrylonitrile copolymer, or mixtures thereof, whereby a fabric of improved resilience and extensibility is obtained as compared with that of the parent Specification. Preferably the bonding agent is applied to the fibrous assembly by passing it through an aqueous colloidal dispersion of the bonding agent, removing excess thereof as by passage through a mangle, heating to drive off the water, and vulcanizing the resulting assembly, vulcanizing and accelerating agents being preferably included in the aqueous bonding agent dispersion. The carded webs may comprise one or more resilient fibres of wool, synthetic protein, nylon staple, polyethylene glycol terephthalate alone or in admixture with one or more of the less-resilient fibres of cellulose acetate rayon staple viscose rayon staple, viscose rayon waste, cotton. To improve the sewing properties of such fabrics for use as garment interlinings, the fabrics are treated with 0.25-2.5 per cent by weight of dry rubber present in the assembly of a polyorganosiloxane resin R-(SiO)-R<SP>1</SP> where R is hydrogen, hydrocarbon or alkoxy and R<SP>1</SP> is hydrocarbon or. alkoxy, the resin-typically polydimethyl siloxane-being preferably added to the bonding agent dispersion. The fabrics may also be subjected to a shrinking treatment.