baber/WOPTO huggingface dataset:
Patent GB-1155145-A (GB)
Title: 3-(2-R-Tetrahydropyranyl Ethers) of Estra-1,3,5(10)-Trienes
IPC: C07J17/00
Filed: 1967-01-16
Abstract: 1,155,145. 3 - (2<SP>1</SP> - R - Tetrahydropyranyl) ethers of estra-1,3,5(10)-trienes. ORMONOTERAPIA RICHTER S.p.A. 16 Jan., 1967 [3 Oct., 1966], No. 2180/67. Heading C2U. A novel 3 - (2<SP>1</SP> - R - tetrahydropyranyloxy)- estra-1,3,5(10)-triene of general formula wherein R 1  is hydrogen, hydroxy, acyloxy (derived from a C 1-12  aliphatic carboxylic acid or from an aromatic, araliphatic, cycloaliphatic, or dicarboxylic acid), or 2<SP>11</SP>-R- or 2<SP>11</SP>-S-tetrahydroxypyranyloxy, and R 2  is hydrogen, methyl, ethyl, vinyl, or ethynyl, or R 1  and R 2  together form an oxo group, is obtained from a mixture thereof with the corresponding 3-(2<SP>1</SP>-S- tetrahydropyranyloxy) diastereoisomer (the latter being described and claimed in Specification 1,155,144), by fractional crystallization, gas or column chromatography or preparative chromatography on a thin layer. The mixture of diastereomers is obtained by reaction of the corresponding 3-hydroxy compound with 2,3- dihydropyran or with 2-chlorotetrahydropyran. The products of the invention may be chemically interconverted by conventional processes. In addition, Example 17 describes the separation of 3 - (2<SP>1</SP> - R), 17# - (2<SP>11</SP>) -  ditetrahydropyranyloxy - estra - 1,3,5(10) - triene into its 17# - (2<SP>11</SP>- R) and 17#-(2<SP>11</SP>-S) components.
Patent GB-892761-A (GB)
Title: Drive circuit for counter tubes
IPC: H03K29/00
Filed: 1961-01-19
Abstract: 892,761. Valve and transistor pulse generating and counting circuits. SYLVANIA ELECTRIC PRODUCTS Inc. Jan 19, 1961 [March 10, 1960], No. 2240/61. Class 40(6). In a circuit for providing a pair of successive adjacent negative pulses, such as 84, 90, the first pulse 84 is provided by a regenerative circuit, the output of which is differentiated and inverted to provide the second pulse 90. Fig. 1 shows a circuit for providing successive drive pulses 84, 90 to a glow-transfer counting tube 10, in response to each input pulse 80. The first pulse 84 is generated by the triggering of the monostable multivibrator comprising valves 42, 44 and is differentiated by capacitor 64 and resistor 74 to provide waveform 88. The positive half cycle is limited and inverted by valve 46 to give the second pulse 90. The input pulse 90 may be differentiated by capacitor 82. The circuit may alternatively be triggered by a negative pulse fed to the anode of valve 42. The circuit will operate at frequencies from 0-5,000 c/s. The valves may be replaced by transistors. Alternately a triode-pentode may be used, the pentode operating as a transitron.
Patent GB-506158-A (GB)
Title: Improvements in or relating to clips or sheet-retaining devices for loose-leaf binders and like purposes
IPC: B42F13/00
Filed: 1939-01-23
Abstract: 506,158. Clips for holding paper sheets or the like. WATERLOW & SONS, Ltd., PERSON, L. G. P., and PERSON, H. L. Jan. 23, 1939, No. 2293. Addition to 492,224. [Class 146 (i)] Pivoted levers are arranged to coact with the pivoted retaining arms or elements of the parent Specification so that by raising one of the levers the retaining elements are moved to release the sheets. The levers 16 are provided with finger plates 16b which overlie the paper retaining pegs 3 and prevent them damaging the cover. Levers 16 are provided with a flange 16a engaging above the retaining element 6 and a projection 16c engaging below it. The flange 16a moves element 6 into engagement with the papers when lever 16 is depressed and projection 16c moves element 6 out of engagement when it is raised. The two retaining elements are geared to operate together as in the parent Specification. Levers 16 are pivoted at the same point 7 on the upstanding peg 5 as the elements 6. Flange 16a is extended to form the finger plate 16b.
Patent GB-1048781-A (GB)
Title: Improvements in or relating to multipositional rotary switch
IPC: H01H19/11
Filed: 1965-01-19
Abstract: 1,048,781. Mechanical switches, without quick action. M. H. DELTOER. Jan. 19, 1965 [Jan. 20, 1964], No. 2313/65. Heading H2B. A multiposition rotary switch comprises a frame housing operating shaft 4, rotation of which rotates bevel gear annulus 6 which drives bevel pinions 10a having integrally with them spur pinion sections 10b which drive in opposite directions two rotors, each rotor comprising spur gear 15, hub 16 and detent disc 24. The hub 16 of each rotor has a groove 17 housing a slider contact 18 the central portion of which makes contact with a central pin 21 by engaging washer 21c or pin 21 and the slide portion of which contacts contacts 20 arranged in a circle in insulating disc 19 mounted in plate 12. The ends of contacts 20, 21 project through disc 19 to form terminals. The two plates 12 are held together by distance pieces 14. The detent disc 24 on each rotor has detent teeth 26 which are engaged by a leaf spring 27 supported in slots 28 in distance pieces 14. In a modification each rotor hub 16 may carry two diametrically opposed sliders in its groove 17 in which case central pin 21 and washer 21c are omitted and a pair of separate contact plates 31, Fig. 9 (not shown), provided instead having lugs which project through disc 19 to form terminals.
Patent GB-715080-A (GB)
Title: Improvements in or relating to containers and container blanks formed of flexible sheet material
Inventor: PRIDEAUX GEORGE EDWARD
IPC: B65D5/465
Filed: 1952-01-29
Abstract: 715,080. Boxes. THOMPSON & NORRIS MANUFACTURING CO.. Ltd. Jan. 20, 1953 [Jan. 29, 1952], No. 2411/52. Class 18 A partitioned box is formed from two identical blanks each comprising panels 2-5 and interlocking base flaps 6-9, the panels 5 being received together to form a single composite blank with the panels 2-4 extending on both sides of the superimposed panels 5. The panels 5 form the partition and may include extensions 10 forming a handle. The flaps 6-9 may, as shown, be shaped and interlocked as described in Specification 714,683.
Patent GB-1217235-A (GB)
Title: Improvements in or relating to pumps
Inventor: HARTLEY EZRA DALE
IPC: F04B27/02
Filed: 1968-01-17
Abstract: 1,217,235. Vacuum pumps. E. D. HARTLEY. Jan. 17, 1968, No.2461/68. Heading F1N. In a vacuum pump comprising opposed pistons 52, 54 inter-connected by spacer rods 56 and reciprocated in opposed cylinders 60, 62 by a rotatable eccentric 72 surrounded by a cylindrical ring 74 which alternately engages pads 80, 81 on the inner faces of the pistons, the body 20 defining the cylinders 60, 62 is provided with longitudinal passages (140, 142) Figs. 10-12 (not shown)which, depending on whether they are blocked or opened by the cylinder heads 22, 24, enable the cylinders to pump separately, or in parallel or series. Each cylinder head has a spring-loaded disc-shaped outlet valve 104 and an annular inlet valve 90 controlling a circular array of inlet ports in a valve plate 94. The cylinder heads also have inlet and outlet connections. When each cylinder pumps separately, all four connections are used, Fig. 12 (not shown) and the longitudinal passages (140, 142) are blocked. In series or parallel, Figs. 10 and 11 (not shown), a single inlet and a single outlet are used, openings being provided in the heads to achieve appropriate inter-connections of the cylinders. To prevent rotation of the pistons the ring 74 engages in a groove 86 in the pad 81.
Patent GB-251337-A (GB)
Title: An improved directional radio receiving system
IPC: H01Q3/26
Filed: 1925-01-29
Abstract: 251,337. Western Electric Co., Ltd., (Western Electric Co , Inc.). Jan. 29, 1925. Phase, changing.-In a wirzless signalling system, two loop aerials 3, 3<1>, Fig. 1, separated by from 1/12 to 1/4 of a wavelength, are connected to two demodulators 5, 5, by circuits which are linked to a local source of oscillations 8 by an adjustable coupling 6 and a phase-shifting device 7 respectively, the latter comprising fixed coils 14, 15, adapted to produce a rotating field, and a rotatable coil 16. The loop aerials 3, 3', are coplanar, but in a modification the loop 3<1> is replaced by a condenser antenna located immediately above the loop 3, and in this case the phase shifter 7 is replaced by an arrangement for producing a 90‹ change of phase,
Patent GB-787808-A (GB)
Title: Improvements in and relating to thermal power plants for driving marine tankers
IPC: F02C1/10
Filed: 1955-01-28
Abstract: 787,808. Gas turbine plant. AKT.-GES. FUR TECHNISCHE STUDIEN. Jan. 28, 1955 [Feb. 8, 1954], No. 2651/55. Class 110 (3). A tanker driven by a gas turbine plant having a closed circuit in which a working medium is compressed, then heated and expanded in turbine stages driving the compressor and propeller respectively and the turbine exhaust is used to heat the compressed working medium in a heat-exchanger before being recompressed, has a sea-water heater connected in the circuit between the heat exchanger and compressor inlet to heat sea water to clean the tank or, at other times, to heat the tank. The working medium is compressed in a compressor 1, heated by the turbine exhaust gases in a heat exchanger 3 and then further heated in a heater 5. The heated compressed medium is then expanded in a turbine 7 which drives the compressor 1 and a turbine 9 which drives the ship's propeller 11 through gearing 10, 10<SP>1</SP>. The exhaust gas from the turbine 9 passes through the heat exchanger 3, a sea-water heater 12 and a cooler 13 into the suction of the compressor 1. The sea water heater 12 is used to heat sea water for cleaning or heating the tank. The air passing through the compressor 1 is cooled in two intermediate coolers 14, 15. Sea water supplied by a pump 18 is passed through the coolers 13, 14, 15 and the sea water heater 12. The heated sea water from the heater 12 may be passed through a valve 26 to tank cleaning arrangements 27 or through a valve 39 to a tank heating system 41. The discharge from the system 41 may be led to the heater 12 or discharged. Valves 23, 29, 31, 34 and 37 enable the coolers 13, 14, 15 to be placed in series or parallel with the heater 12.
Patent GB-858428-A (GB)
Title: Improvements in the production of foamed-up articles
IPC: C08J9/18
Filed: 1958-01-28
Abstract: Porous polystyrene articles are prepared by treating polystyrene beads, preferably 0,5-2 m.m. diameter, with at least one readily volatile raising agent capable of swelling the beads but not dissolving them, if desired in the presence of a solvent boiling below the softening point of polystyrene and used in an amount sufficient only to cause swelling of the beads.  The polystyrene beads are immersed at room temperature in the volatile raising agent to cause partial swelling, and are then dried at a temperature below that which causes foaming but sufficient to cause the individual particles to weld together. The product which consists of the polystyrene beads stuck together, is then foamed-up without the use of pressure by heating to a temperature above the boiling point of the raising agent. Readily volatile raising agents specified are petroleum ether, light gasoline and low boiling alcohols such as methyl and ethyl alcohols.  Solvents specified are acetone, benzene and liquid halogen substituted hydrocarbons.  Dyestuffs and materials for reducing combustibility e.g. urea and thiourea can be incorporated by distributing these substances in the raising agent.ALSO:Porous polystyrene articles are prepared by treating polystyrene beads preferably 0,5-2 mm. diameter, with at least one readily volatile raising agent capable of swelling the beads but not dissolving them, if desired in the presence of a solvent boiling below the softening point of polystyrene and used in an amount sufficient only to cause swelling of the beads.  The polystyrene beads are immersed at room temperature in the volatile raising agent to cause partial swelling and are then dried at a temperature below that which causes foaming but sufficient to cause the individual particles to weld together. The product, which consists of the polystyrene beads stuck together, is then foamed-up without the use of pressure by heating to a temperature above the boiling point of the raising agent. Readily volatile raising agents specified are petroleum ether, tight gasoline and low boiling alcohols such as methyl and ethyl alcohols.  Solvents specified are acetone, benzene and liquid halogen substituted hydrocarbons.  Dyestuffs and materials for reducing combustibility, e.g. urea and thiourea canbe in corporated by distributing these substances in the raising agent.
Patent GB-108274-A (GB)
Title: Improvements in or relating to Load-carrying Devices.
IPC: B66B1/42
Filed: 1917-02-26
Abstract: 108,274. Waygood-Otis, Ltd., (Otis Elevator Co.). Feb. 26, 1917. Brakes for winding and paying-out apparatus. - In winding - apparatus for lifts, the winding- drum A is driven by an electromotor C through worm gearing B which is connected through a combined clutch and brake D and worm gearing E to an auxiliary motor F and brake G. The brake D for the pulley 2, Fig. 3, on the shaft of the motor C comprises two shoes 1, 1 carried by pivoted levers 4 which are drawn together by a spring (not shown). The shoes are released by rocking the bell-crank levers 8 by a sliding rod 11 actuated by an electro-magnet 18. The frame 6 in which the levers 8 are pivoted is journaled in gear casing 13 and carries a worm wheel 14 meshing with a worm 15 secured to the shaft of the motor F. If the lift is stationary, the electro-magnet 18 is not excited and the brake shoes are applied, thus coupling the drum A and motor F. When the circuit to the motor C is closed, the electromagnet is excited and the connexion between the drum A and motor F is severed. The lift then moves, and shortly before reaching the desired floor the circuit to the motor C and electro-magnet 18 is broken and the brake shoes 1 are applied. The motor F now tends to be driven through the gearing E, but will not actually rotate as the brake G is applied. When the speed is reduced sufficiently, the motor F and brake G are excited, and the former drives the lift at slow speed until the lift is opposite the landing. The circuit containing the motor F is then broken, and the brake G applied. Specification 107,356 is referred to.
Patent GB-984392-A (GB)
Title: Improvements relating to internal combustion engines, more particularly compression ignition engines
IPC: F02M69/00
Filed: 1963-01-23
Abstract: 984,392. Fuel injection systems. GES. FUR LINDE'S EISMASCHINEN A.G. Jan. 23, 1963 [Jan. 24, 1962], No. 2810/63. Heading F1B. Fuel is fed under low pressure by a fuel pump and metering mechanism 18, 8, to an orifice in the transfer passage on the compression stroke, the fuel being carried by the air flow into a whirltype combustion chamber 4 where the fuel droplets are centrifuged on to the chamber wall from which they subsequently evaporate. The pumping and metering mechanism comprises a gear feed pump 18 supplying an engine driven rotary distributer 12 feeding the fuel delivery passages 7-11 of respective cylinders. A metering valve 16 and excess pressure valve 17 are provided in the pump  outlet pipe 15. The time of injection may be varied by angular adjustment of the distributer casing or by adjustment of a coupling in the distributer valve drive and the amount of fuel injected may be varied by axial movement of the valve 12 relative to triangular shaped delivery ports in the casing 8. Automatic control of the distributer by a governor may be associated with an override manual control. A reciprocating pump delivering at low pressure may alternatively be used.
Patent GB-1212915-A (GB)
Title: Apparatus for bore-hole drilling
Inventor: EDGECOMBE HOWARD TRETHEWEN
IPC: E21B7/08
Filed: 1968-01-19
Abstract: 1,212,915. Boring earth. ROLLS-ROYCE Ltd. 17 Jan., 1969 [19 Jan., 1968], No. 2915/68. Heading E1F. A drill collar or collars 4d mounted in a drill string used for drilling curved holes is/are sufficiently flexible to prevent the collars 4 mounted in the string above it/them from exerting a bending moment on the device 4c, 6 which produces the deviation of the hole, but is/are capable of transmitting axial loads from collars 4 to the device 4c, 6. As described the deviation is produced by the weight of collar 4c creating a bending moment which is transmitted through bent sub 6 to the drilling bit 8. The bit is rotated by turbo drill 5. The positions of ram 7, which may be of the type described in Specification 755207 and which loads the bit, and of non-magnetic survey collar 4b may be interchanged.
Patent GB-251039-A (GB)
Title: Improvements in or relating to the manufacture of boots and shoes
IPC: A43B13/32
Filed: 1925-02-03
Abstract: 251,039. Green & Sons, Ltd., G., and Miles, W. E. Feb. 3, 1925. Connecting uppers to insoles and soles.-A boot or shoe is characterized in that the upper is secured to the insole by staples and the outer sole is secured only by adhesive. An insole is channelled each side at 2, Fig. 1, on the flesh side to form lips 4 to which the upper is stapled. In most cases the toe end of the insole is left uncut but with round-toed shoes the channel 2 may be continued round the toe. The insole is tacked to a last with the channels uppermost and the upper is pulled over and tacked down. The toe tacks are removed and if a thermoplastic toe puff is used the: shoe is heated. It is placed in a bed lasting machine and the puff, lining &c. are cut away at the edge, leaving # in. to “ in. extending over the insole on the last. The edge of the toe cap is left of greater width than the trimmed edges 8, Fig. 5, of the puff and lining, so that when turned down it will overlap these materials and contact with the insole. Before the puff stiffens the toe portion of the upper is wiped over with celluloid solution or the like to secure it to the insole, which is also brushed with the solution. The lips 4 are raised and the upper is stapled at 9. After stapling, lasting tacks are removed and the work is lightly pounded and the lips 4 flattened. Bottom filling is added and the edges of the lasted upper are roughened for the sole laying. The sole is roughened on the flesh side and secured by cement. Where the channelling is continued at the toe the upper is stapled all round.
Patent GB-667817-A (GB)
Title: Improvements in and relating to apparatus for filling a bag with a predetermined quantity of scrap or cut tobacco
IPC: B65B39/00
Filed: 1950-02-06
Abstract: 667,817. Packeting-machines. NAAMLOOZE VENNOOTSCHAP VEREENIGDE TABAKSINDUSTRIEEN MIGNOT & DE BLOCK. Feb. 6, 1950 [Feb. 7, 1949], No. 3053/50. Class 94(i) [Also in Group VI] In an apparatus for delivering a quantity of scrap or cut tobacco, predetermined as by weighing, into a bag, the tobacco is received by pivoted portions 6, 7, Fig. 2, of adjacent walls 2, 3 of a vertical tube, the gap between the portions 6, 7 when swung open as shown to receive tobacco being closed by a sector plate 12 hinged to the portion 7 and pressed against the portion 6 by a spring (not shown). A third wall portion 14 is formed as a sector plate rigidly attached to the portion 6 and slides past the edge of a fourth fixed wall 4 which is extended to co-act with the portion 7. When the wall portions 6, 7 have been closed to compress the tobacco, it is forced out of the tube into a preformed bag by a stamp 5. In Fig. 1 (not shown), the portion 6 co-acts with a fixed wall in the manner of the portion 7. Three or all four sides of the tube may open. In Fig. 3, swinging sector plates 19, 20 forming two opposed wall portions when closed are operated by rollers 24 mounted on a hinged wall portion 21 and co-acting with cam tracks 27 on the plates 19, 20. The remaining wall 4 is fixed and extended to co-act with the plates. Springs 29 hold the tracks 27 in contact with the rollers 25. The apparatus is operated by a strut 28 connected to the portion 21 and reciprocated as from a crank rod. In Fig. 4 (not shown) only those parts of the plates 19, 20 corresponding to the actual wall portions are pivoted, the rest forming flexible members attached at a slight angle to these portions and co-acting slidably with the edges of the portion 21.
Patent GB-289945-A (GB)
Title: Improvements in or connected with coal or similar tipplers
IPC: B65G69/12
Filed: 1927-02-03
Abstract: 289,945. Silverster, H. Feb. 3, 1927. Rotary tipplers.- In a tippler provided with a cover 9 pivoted at 10 and engaging the shoot 3 so as to release the coal gradually, the cover is formed as a screen in order to pass small coal on to the shoot and jigging screen 4 before the bulk of the coal is released. As shown, the screen 9 extends only over part of the width of the wagon, and on further rotation of the tippler, the tail 9<x> of the screen comes, against the side-plate 11 which acts as a stop to prevent swinging. A stop 18<x> is provided on the tippler frame to hold the screen above the loaded wagon. According to the Provisional Specification the screen completely covers the wagon and is secured to it by a latch or detent which is released automatically during rotation of the tippler.
Patent GB-1099032-A (GB)
Title: Production methods of new salts and molecular compounds using rutin derivatives
IPC: C07H17/07
Filed: 1965-01-25
Abstract: Novel rutin compounds of the formula <FORM:1099032/C2/1> wherein R and R1 are C1- 5 alkyl or aryl groups or a hydroxyalkyl or aryl-substituted hydroxyalkyl group, or one of R and R1 may be hydrogen, or NRR1 forms a heterocyclic ring which may include an oxygen atom and X is an acid group are made by reacting a compound of the formula <FORM:1099032/C2/2> with an acid X.  The acid component is suitably a carboxylic acid such as a pyridine carboxylic acid or an amino-acid, a sulphonic acid, a compound containing an acid imido group, e.g. -NH-CO- or -SO2.NH-, such as theophylline, theobromine, barbituric acid, hydantoins and benzothiadiazines, a phenol such as p-chlorophenol, salicylamide, polyphenols or rutin itself, or other acidic substances which will form a molecular compound with aminomethylrutin.
Patent GB-607356-A (GB)
Title: Improved method of controlling the action of motor vehicle differential gears
Inventor: NEIDHART-LOCHER HERMANN
Filed: 1946-01-31
Abstract: 607,356. Differential gearing; ratchet clutches. LOCHER, H. NEIDHART-. Jan. 31, 1946, No. 3139. Convention date, Oct. 16, 1945. [Class 80 (ii)] The normal action of a motor vehicle differential gear is suspended below a predetermined vehicle speed by an interlock between the side wheels and the rotatable casing which becomes ineffective above that speed. As shown applied to the usual toothed bevel gearing, jamming rollers 19 are mounted in cages 16 between the inner circumferential face of the driving casing 2 and the polygonal rim 20 of the side gears 9, 10. Two semicircular fly-weights 11 pivoted on diametrically opposed pins 12 and connected by tension springs 13 are mounted on each side gear and carry on their outer ends pins 14 engaging radial slots 17 in the cages 16, so that inward movement of the fly-weights below a certain vehicle speed presses the rollers 19 into jamming engagement for one direction of rotation of the driving casing and outward movement of the fly-weights above this speed brings them into a central disengaged position. Circular recesses 15 in the side gears 9, 10 limit the outward movement of the fly-weights and prevent them contacting the driving casing. Adjustable end thrust bearings 21 are provided. The toothed gearing may be replaced by friction gearing comprising smooth surfaced conical side wheels engaging driving planetary balls. The fly-weights may have scissor instead of spring connections, and may move in a radial direction only.