baber/WOPTO huggingface dataset:
Patent GB-1174650-A (GB)
Title: Circuit Apparatus
IPC: G05D23/24
Filed: 1967-08-31
Abstract: 1,174,650. Automatic control systems. RANCO Inc. Aug. 31, 1967 [Sept.27, 1966], No.39982/67. Heading G3R. An automatic system controlling energization of an A.C. load through a gated semi-conductor switch has a control circuit including a differential amplifier having transistors Q1, Q2, to the control electrodes of which pulsating biasing voltages are applied, one of which has an instantaneous amplitude determined by a sensed condition. Air is circulated in a refrigerator by an A.C. fan motor 11, speed controlled by the temperature sensed by a resistor 56, preferably with a negative characteristic, which with a resistor 55 forms a voltage divider across a pulsating D.C. voltage derived from points 22, 23. When the voltage at the centre junction 36 of a R.C. circuit 45, 47 in each half cycle exceeds that of a point 53, transistor Q1 conducts partly shunting the capacitor 47 through a resistor 61. When at a later time the capacitor 47 voltage exceeds that of another junction 67, transistor Q2 is rendered conductive turning on a third transistor Q3 regeneratively, the voltage across a resistor 75 firing a thyristor 15, which switches a diode budge to a conductive condition. In another arrangement, Fig.2 (not shown) a transformer primary winding (131) replaces the resistor 75, and secondary windings (132, 133) fire reverse parallel connected thyristors (101, 102). The positions of resistors 55, 56 may be interchanged to reverse the temperature-motor speed characteristic.
Patent GB-891923-A (GB)
Title: A process for the conversion of alpha-alkylstyrenes
IPC: B01J23/652
Filed: 1960-11-22
Abstract: Para-terphenyls are obtained by contacting a dimer of an alpha-alkylstyrene with iodine, an iodine-containing compound or an oxide of a Group 6 metal as catalyst; also obtained are alpha-alkylstyrene monomer and a tertiary alkyl aromatic hydrocarbon. In a preferred 3-stage process a tertiary alkyl substituted aromatic hydrocarbon is first oxidised to the hydroperoxide which is then decomposed to obtain a phenol.  The by-product alpha-alkylstyrene is dimerised in a second stage and catalytically converted to a para-terphenyl in a third stage.  The tertiary alkyl aromatic hydrocarbon byproduct is recycled to the first stage and the alpha-alkylstyrene monomer to the dimerisation.  The alkylstyrene may have a C1-C5 alkyl group on the alpha carbon and may contain up to three nuclear alkyl substituents; alpha-methylstyrene is preferred in which case cumene is used as the tertiary alkyl compound. Dimerisation may be effected at 65 DEG C.-105 DEG C. with 0.5-5 volumes of 30%-65% sulphuric acid per volume of monomer.  The iodine or iodine compound is used in an amount of 0.5%-2.5% mol of the dimer and the conditions may be 350 DEG C.-550 DEG C., 0.7 atmospheres absolute to 17 atmospheres gauge pressure, and 1 second to 5 minutes. Suitable iodine compounds are isopropyl iodide, benzyl iodide and cyclohexyl iodide.  Metal oxide catalysts are preferably molybdenum or chromium oxide supported on alumina, silica or pumice; promoters such as palladium or platinum, cobalt, rubidium or potassium, or cerium may be added.  The para-terphenyl is an insoluble solid and is separated from other products by filtration.
Patent GB-924746-A (GB)
Title: Water quality control means
IPC: E02B9/04
Filed: 1961-11-09
Abstract: 924,746. Adjustable-gap sluice gates. V. M. GWYTHER. Nov. 9, 1961, No. 40123/61. Class 68 (2). Water quality control means in a passage 15 through which water passes from a reservoir to a forebay, the passage being defined by the sidewalls of separated piers 13, 14 and the forebay bottom 19, comprises a pontoon 94 submerged a distance H-94 below the water surface WL and a cutoff membrane 91 supported by the pontoon, the pontoon and membrane extending across the passage with their sides slidably engaging channel tracks 23, 25 on said sidewalls so that the membrane and pontoon form a barrier to cut off the flow of water above the depth H-94. A second pontoon 28 spaced below the first at a depth H-28 below the water surface has a sectional membrane 62, 63 depending therefrom, the two pontoons defining an intake opening for the passage of water from the reservoir to the forebay. Each pontoon has means controlling the supply of compressed air thereto to expel water therefrom to vary the buoyancy of the pontoon and thereby alter the position and extent of the intake opening. The pontoon 28 may be locked in position.
Patent GB-903330-A (GB)
Title: Notched printed circuit panel
IPC: H05K1/14
Filed: 1960-11-24
Abstract: 903,330. Electrical circuit assemblies. BENDIX CORPORATION. Nov. 24, 1960 [Dec. 3, 1959], No. 40390/60. Class 37. A circuit module comprises a pair of spaced parallel dielectric boards, the edges of which are provided with a plurality of peripherally-spaced slots, so that the extending leads of individual components may be press-fitted into opposed slots of the board and subsequently soldered to thin conductive layers secured to the board and adjoining the slots. A wafer 11 of epoxy impregnated paper board has formed around its periphery a plurality of slots 12 which may be variously shaped, Figs. 2, 3, 4, 5 (not shown), and carries on one or both surfaces a printed circuit 13; some of the slots being surrounded with a land 14 of conductive material bonded to the board 11 but not interconnected with the printed circuit 13. As shown in Fig. 6, two wafers 11 are held vertically in position by supporting pins 34 engaging with holes 33 in a base 32 of jig 31. An electronic component 35 having oppositely extending leads 36 is positioned in opposed slots 12 of the boards 11 and press-fitted into the slots by a spring-loaded centre-punch 37 having a modified tip 38, the various forms of the slots enabling different diameter leads 36 to be secured to the boards 11. The module is completed, Fig. 7, by assembling additional components in adjoining slots in a manner similar to that described for the component 35, around the four edges of the boards 11; the module assembly then being removed from the jig 31 and dipsoldered.
Patent GB-898684-A (GB)
Title: Improvements in or relating to pulse receivers
IPC: H04K3/00
Filed: 1958-12-17
Abstract: 898,684. Pulse receivers. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Dec. 17, 1958 [Dec. 19, 1957], No. 40708/58. Class 40(5). In an arrangement for suppressing interference in a pulse receiver, a bridge network A, B, C, D passes signals from the output pentode 12 of the wide band I.F. amplifier of the receiver to a narrow pass band filter and I.F. amplifier 4 of the receiver; and means are provided to prevent the passage of such signals in the presence of interference pulses. The output from pentode 12 is detected by diode 17, and each pulse therefrom is fed to RC circuit 32, 31. As the interference sweep frequency increases, the height of the leading edge collected at the terminals of capacitor 29 is reduced and each pulse is reduced and progressively shortened. Pulses formed by cathode follower 20 are fed to point B of the bridge, and if of sufficient amplitude the diodes '13, 14, 15, 16 are rendered conductive; the signal channel from diode 12 to unit 4 thus being shunted by a low impedance between points A and C.
Patent GB-974814-A (GB)
Title: Improved smoke filter
IPC: A24D3/16
Filed: 1961-11-15
Abstract: A filter for tobacco smoke comprises a filtering medium, activated carbon superficially dispersed in the medium, and a mixture comprising polyvinyl pyrrolidone and a poly hydric alcohol binding the carbon to the medium. The filtering medium may be cellulose acetate, paper, glassine or bleached sulphite and the polyhydric alcohol is preferably glycerine, diethylene glycol, triethylene glycol, propylene glycol or polyethylene glycol. The mixture contains one to four times as much polyvinyl pyrrolidone as the polyhydric alcohol, the filter containing 5-20% of the mixture and 15-20% activated carbon. The carbon is secured to the filtering medium by applying an aqueous mixture of the polyvinyl pyrrolidone and the polyhydric alcohol to the medium, applying the activated carbon thereto before the mixture has dried, and finally drying the product. Quantitative examples are given. U.S.A. Specifications 2,325,386, 2,801,638, 2,825,120 and 2,881,770 are referred to.ALSO:A filter for tobacco smoke comprises a filtering medium, activated carbon superficially dispersed in the medium, and a mixture comprising polyvinyl pyrrolidone and a polyhydric alcohol binding the carbon to the medium.  The filtering medium may be cellulose acetate, paper, glassine or bleached sulphite and the polyhydric alcohol is preferably glycerine, diethylene glycol, p  triethylene glycol, propylene glycol or polyethylene glycol.  The mixture contains one to four times as much polyvinyl pyrrolidone as the polyhydric alcohol, the filter containing 5-20% of the mixture and 15-20% activated carbon.  The carbon is secured to the filtering medium by applying an aqueous mixture of the polyvinyl pyrrolidone and the polyhydric alcohol to the medium, applying the activated carbon thereto before the mixture has dried, and finally drying the product.  Quantitative examples are given. U.S.A.  Specifications 2,325,386, 2,801,638, 2,825,120 and 2,881,770 are referred to.
Patent GB-1175999-A (GB)
Title: Improvements in or relating to Rotary Hectograph Duplicating Machines.
IPC: B41L11/00
Filed: 1967-09-07
Abstract: 1,175,999. Rotary hectographic duplicating machines. VEENMAN KANTOORMACHINES N.V. 7 Sept., 1967 [14 Sept., 1966], No. 41013/67. Heading B6C. The printing drum 1 of a duplicating machine carries axial grooves 2, 3, the former locating a stationary clip 4 for holding a heading master sheet 5 and an axially movable clip 7 under the control of a spring 6 for holding a mask sheet 8, whilst the latter houses an axially movable clip tensioned by a spring 9 and holding an item master sheet 11 which, during the operation of the machine, is masked selectively and in part by the sheet 8. Sprocket wheels 14, 17 are connected to respective clips 7, 10 by chains 12, 15, whilst the drum 1 is driven by a motor 18 through a speed reduction box 19 and clutch 20 energized by an electromagnet DCS by way of a lever 21. The magnet is energized by a switch unit 36 but only when both movable clips 7 and 10 are stationary. A contact 22 is operated by the drum 1 to create an impulse after each copy has been made to initiate movement of the clips 7 and 10 to their next printing position. The motor 18 drives a shaft 28 on which the sprocket-wheels 14 and 17 are loosely rotatably mounted through a reversing clutch 24, shaft 25 and speed reduction box 27. Sprocket-wheels 14 and 17 are coupled, when necessary, to the shaft 28 through respective coupling members 29, 31 which are slidably, but not rotatably, fixed to the shaft, movement of the members 29, 31 being effected by electromagnetically operated levers 30 and 32. In dependence on the direction of rotation of the shaft 28 and of the wheels 14, 17 being coupled to the shaft, the chain 12 or 15 attached to its associated sprocket-wheel will be coiled on said wheel or uncoiled therefrom, in consequence of which the clip 7 or 10 will be moved to the left or the right by the tension spring acting thereon or against the action of said spring. (For Figure see next page.)
Patent GB-996607-A (GB)
Title: Improvements in or relating to drawing heads for spinning machines
IPC: D01H5/20
Filed: 1961-11-16
Abstract: 996,607. Drafting-apparatus. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES. Nov. 16, 1961 [Dec. 21, 1960], No. 41017/61. Heading D1D. Drafting-apparatus comprises fibre-guiding rolls 3, 4, 5 immediately preceding drawing rolls 6, 7, 8, and a device including a batten or bar 11 which extends parallel to the axes of the rollers and is located between the two sets of rolls and which is mounted to co-operate with one of the rolls of the guiding-set or an additional and separate roller and to be adjustable as to its clearance with respect to that roll. By this arrangement, fibres which are shorter than the distance between adjacent nips a, c, of the guiding and drawing sets are retarded to prevent their being drawn forward by frictional contact with fibres in the nip c: the fibres, instead of being controlled merely in the arc a, b, are rear controlled in the increased arc a, d, the position of the point d being varied by adusting the height of the batten, while the nip distance a, c may be changed for fibres of different staple length by changing the positions of the rolls 5, 7. The rolls 5, 7 are mounted in bearings ending in members e.g. 17 resting in recesses 18, 35 in cheeks 19. Each bearing of roll 5 is held resiliently against the rolls 3, 4 by a piston-ram 21. The bar is of bent sheet-metal adjustably carried at 12 in blocks 14, 15 resting on the bearings of roll 5, the clearance of the rams 21 in the blocks being enough to allow the bar to rest on roll 4 by its own weight, aided by pressure of leaf-springs 26 adjustable at 28. Rubber pads 31 prevent the bar damaging the rubber coating of roll 7. The leaf-springs may be replaced by lugs extending upwardly from the bar, which is then made of resilient material. One roll 4 is fluted.
Patent GB-1359984-A (GB)
Title: Production of moulded hollow plastics articles
IPC: B65D23/08
Filed: 1973-08-31
Abstract: 1359984 Forming oriented styrene copolymer articles PHILLIPS PETROLEUM CO 27 Aug 1971 [14 Jan 1971] 41121/73 Divided out of 1359663 Heading C3P [Also in Division B5] A method of moulding bottles and other hollow articles comprises biaxially expanding a tubular preform of a thermoplastic material at 40 to 200‹ F. below its homogeneous melt temperature to achieve longitudinal and circumferential orientation, the material being a copolymer of 60 to 90% styrene and the remainder acrylonitrile.
Patent GB-1126210-A (GB)
Title: Improvements in or relating to burners for liquid or gaseous fuel
Inventor: MAYNARD GEORGE HENRY
IPC: F23D99/00
Filed: 1967-09-11
Abstract: 1,126,210. Burners. BARTER & SONS Ltd. 11 Sept., 1967 No. 41458/67. Addition to 892,067. Heading F4T. In a modification of the burner of Specification 892,067 the fingers extending into the dishshaped member 7 from the cap 10 are replaced by fingers 9 welded to the inside of member 7 and positioned to locate the plates 16, 17. Nuts 11 clamp the cap and plates in position and are then fixed by welding.
Patent GB-1254978-A (GB)
Title: Improvements in and relating to grinding apparatus
Inventor: KOIDE TSUYOSHI
IPC: B24B47/18
Filed: 1970-08-28
Abstract: 1,254,978. Grinding. TOYODA KOKI K.K. 28 Aug., 1970 [16 Sept., 1969], No. 41467/70. Heading B3D. Grinding apparatus comprises a grinding- wheel 3 and a driven wheel 4, such as a pulley, mounted on a spindle 2 for rotation therewith, the driven wheel being exchangeable for one 33 of smaller diameter as the diameter a of the grinding-wheel is reduced to b through use, and means 22 for preventing a grinding-wheel of diameter a being mounted on the spindle whilst the smaller diameter driven wheel is on the spindle. The spindle 2 is mounted in a head 1 having a guideway 1a for the base 9 of a motor 8 having a pulley 18 for driving the belt of the pulley 4 or 33, the base being adjustable by a screw 11 to tension the belt. A plate 13 is secured to the head 1 and rotatably supports one end 14<SP>1</SP> of a shaft 14, the other end 14<SP>11</SP> of which is rotatably mounted in a bearing 19 in the guard 5 for the grinding-wheel. The means 22, in the form of a pin, is eccentrically mounted on end 14<SP>11</SP> of the shaft, and a boss 16 is secured to the end 14<SP>1</SP> of the shaft and carries a flexible arm 24. One end of the arm carries a pin 30 for selective engagement with one or other of holes 31, 32 in the plate 13, and the other end of the arm is connected by a pivot 27 to a safetyarm 26 guided for movement by a pin-and-slot mechanism 26a, 28. The other end of the arm 26 has a pin 25 for extending into a recess in the pulley 4 or 33. With the smaller pulley on the spindle, the pin 25, by engaging the surface 33<SP>1</SP> of the recess, prevents movement of the arm 24 and hence the pin 22 prevents a grinding-wheel of diameter a being mounted on the spindle.
Patent GB-1412043-A (GB)
Title: Vehicle body having storage and supporting apparatus for an upper bed deck
IPC: B60P3/38
Filed: 1973-09-05
Abstract: 1412043 Beds for vehicles TOYOTA SHATAI KK 5 Sept 1973 [7 Sept 1972] 41681/73 Heading B7B In a vehicle having living space 3 an upper bed deck 7 is stowable in a horizontal position adjacent the roof wall 1b the deck being held in this position by rollers which engage in channel rails 9a, 9b fitted to the ceiling. In one embodiment two upper bed decks 7, 8 are provided, the latter being stowed adjacent a side wall 1a by means of a pivotally mounted 24 and a catch 25. The channel section rails extend across the ceiling wall 1b and down each side wall 1a, 1b and rollers 12b, (12a) (Figs. 2, 3, not shown), at one side of deck 7 are respectively mounted in rails 9b, 9a. Openings 16b (16a) are provided in the rails 9b, 9a to allow the respective entry of rollers 13b (13a) at the other side of deck 7, the openings being closable by sliding covers 17b (17a). To stow the bed it is first pivoted about rollers 12b (12a), the rollers 13b (13a) inserted into rails 9a, 9b and then slid to its position adjacent the roof wall. Stops 14b (14a) and 15b (15a) are respectively provided for the rollers 12b (12a) and 13b (13a), and notches 93b (93a) in the rails engage rollers 12b (12a) to prevent transverse movement of the stowed deck. When in use the decks 7, 8 are supported at one end on a projection 41 of a wall 40 and at the other end by hook members 23 screwed to the decks which engage a shelf 20. Alternatively the decks may be suspended from chains when in use. The rails 9a, 9b may be continuous or be constituted by separate roof and side wall parts. In another arrangement the side wall sections of the rails may be omitted so that after insertion of the rollers 13b (13a) into the rails the other side of the deck has to be lifted and separately affixed to the roof wall. In a further embodiment both bed decks 7, 8, Fig. 14, are mounted so as to be stowed adjacent the roof. The living space of the vehicle is provided with seats 6 which are adapted to form a lower bed deck.
Patent GB-941360-A (GB)
Title: Improvements in or relating to griseofulvic acid
Inventor: WALKER THOMAS
IPC: C07D307/94
Filed: 1959-12-09
Abstract: Griseofulvic acid is prepared by the hydrolysis of griseofulvin with an aqueous strong acid in the presence of an alkanoic monocarboxylic acid containing 1-5 carbon atoms, e.g., formic, acetic or propionic acid.  Generally 3 to 8 volumes of the aliphatic acid are used per volume of the aqueous strong acid which is preferably sulphuric, hydrochloric, perchloric trichloracetic or p-toluene sulphonic acid, in strengths ranging from N/20 to 5N. Suitably the griseofulvin is dissolved in the aliphatic acid at an elevated temperature, the temperature maintained and the aqueous strong acid added. Examples are given.
Patent GB-1069664-A (GB)
Title: Improvements in and relating to magnetic storage devices
IPC: G11C11/06
Filed: 1965-10-05
Abstract: 1,069,664. Circuits employing bi-stable magnetic elements. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 5, 1965 [Oct. 8, 1964], No. 42191/65. Heading H3B. In order to eliminate spurious outputs on a sense winding of a core the sense winding is connected to a gating circuit wich is opened from a predetermined time after the beginning of a read pulse on a read, winding up to an instant prior to the end of the read pulse. The source of read pulses is applied to input 4 and through a delay member such as a transistor to read winding 2 and through a second delay arrangement 6 to an input of an AND gate 7. Sense winding 3 is connected to a second input of gate 7 and the input 4 is connected directly to the third input of the gate. During read out disturbance signals appear on the sense line 3 at the beginning and end of the read out pulse on line 2, Figs. 2(c), 2(d) (not shown), which pulse is delayed by a time in relation to the pulse applied at input 4 and hence to gate 7, Figs. 2(a), 2(b) (not shown). By choosing the delay of arrangement 6 such that the read out pulse only appears at the gate 7 after the disturbance pulses due to the read out pulse the gate 7 is opened to provide an output pulse devoid of noise, Fig. 2(f) (not shown). Since the time when the pulse at input 4 ceases is in advance of the time when the read out pulse on line 2 ceases due to delay member 5, gate 7 is closed before the end of the read-out pulse and the output pulse at 8 is devoid of disturbance pulses due to the trailing edge of the read out pulse.
Patent GB-1241605-A (GB)
Title: Ball or roller bearings
IPC: F16C33/78
Filed: 1968-09-06
Abstract: 1,241,605. Sealing rolling bearings. SOC. NOUVELLE DE ROULEMENTS. 6 Sept., 1968 [7 Sept., 1967; 7 Dec., 1967], No. 42655/68. Headings F2A and F2B. A rolling bearing is sealed by a deflector member 5 secured to one of its races 2 and which is spaced from the other race 1, and by a resilient annular seal 6 which has an axially inner wall secured to the race 1 and an outer wall in sliding sealing contact with the deflector member. A channel is defined between the inner and outer walls and the deflector member is so spaced from the race 1 that the outer wall of the annular seal is flexed inwardly towards the inner wall. The annular seal 6 may be provided with a lip 8 which engages either the race 2 or the deflector member 5. Coil springs 14, 14<SP>1</SP> may be provided to urge the seal into contact with the deflector and race.
Patent GB-869058-A (GB)
Title: Tertiary alkyl ferrocenes
Inventor: LEIGH THOMAS
IPC: C07F17/02
Filed: 1959-12-16
Abstract: The invention comprises the following tertiary alkyl ferrocenes of formula:  <FORM:0869058/IV (b)/1> 1) 1,11-di(1-methyl-1-ethylpropyl)ferrocene, [R being CH3CH2C(CH3)(C2H5)-]  2) 1-11-(di(1 : 1-dimethylbutyl)ferrocene, [R being CH3CH2CH2C(CH3)2-]  3) 1 : 11-di(1-methyl-1-ethylamyl)ferrocene, [R being <FORM:0869058/IV (b)/2> ]  and 4) 1 : 11-di(1-methylcyclohexyl)ferrocene [R being <FORM:0869058/IV (b)/3> ] They may be prepared by reacting the corresponding tertiary alkyl cyclopentadiene alkali metal derivatives with an anhydrous iron halide.  Tertiary alkylcyclopentadienes may be prepared by alkylation of a cyclopentadiene magnesium halide with an alkyl chloride.  There are prepared a) (1-methyl-1-ethylpropyl) -cyclopentadiene, b) (1 : 1-dimethylbutyl)cyclopentadiene, c) (1-methyl-1-ethylamyl)cyclopentadiene and (1-methylcyclohexyl)cyclopentadiene.
Patent GB-994035-A (GB)
Title: Ejector device for eliminating faulty cigarettes from cigarette making machines
IPC: A24C5/31
Filed: 1962-11-13
Abstract: 994,035. Cigarette-making machines. H. J. FROHLING. Nov. 13, 1962 [Nov. 13, 1961], No. 42840/62. Heading A2C. A device for the elimination from production of reject cigarettes which occurs during the starting and running out periods of a cigarette-making machine has a grooved drum 2 into which cigarette lengths are fed from a continuous rod making machine, and is characterised in that between the delivery end of the continuously rod machine and the drum 2 a blocking lever 5, pivoted at 6, is arranged, the lever being controlled by a solenoid 4 operating in response to the speed of the cigarettemaking machine. Cigarettes prevented from entering the grooves 3 of the drum 2 are deflected into a receiver 9. The solenoid may also be operated in response to the detection of faults in the cigarette wrapping paper, and the lever 5 may be manually operated by depression of a key 5a.