baber/WOPTO huggingface dataset:
Patent GB-1078655-A (GB)
Title: Improvements in or relating to steroid tetrahydropyranyl ethers
IPC: C07J17/00
Filed: 1965-06-24
Abstract: The invention comprises steroids of the formulae <FORM:1078655/C2/1> They are prepared by reacting the free 17b -ols with dihydropyran under conventional reaction conditions.  The D 5(10)-compound may also be prepared by reducing 17a -ethynyl-D 5(10)-estren -17b -ol-3-one to a mixture of the 3a - and 3b -ols, acylating this mixture to give a mixture of the 3-acylates, etherifying this with dihydropyran, hydrolysing to give the 3-ols again and oxidizing these.  Examples are given.ALSO:Steroids of the formula <FORM:1078655/A5-A6/1> have progestational activity and are useful in fertility control. They may be administered orally together with a suitable carrier and with or without an estrogen such as estradiol or 17a -ethynylestradiol 3-methyl ether.
Patent GB-1396157-A (GB)
Title: Removal of solvents from solutions
IPC: H01M8/06
Filed: 1972-06-08
Abstract: 1396157 Using semi permeable membranes to separate water from electrolyte SIEMENS AG 8 June 1972 [8 June 1971] 26895/72 Addition to 1208671 Heading B1B In a process where water is separated from electrolyte leaving fuel cell 63 via 71 by using a semi permeable membrane as disclosed in Specification 1208671, a jet pump 62 is used to cause gaseous reactant to flow through the fuel cell and then as an auxiliary gas through condensation chamber 64 to carry condensate to pressure lock 65 where gas and liquid are separated by membrane 80 and gas is returned via line 69 to the suction intake of pump 62. Pressure lock 65 may comprise a liquid permeable asbestos membrane through which liquid but not gas can pass.
Patent GB-1103534-A (GB)
Title: Compartmental dispensing container for nose and throat preparations
IPC: A61M15/08
Filed: 1966-06-17
Abstract: 1,103,534. Spray-producers. B. L. MEURER and W. L. FISHER. 17, June, 1966, No. 27066/66. Heading B2F. [Also in Division A5] Apparatus for atomizing and spraying two incompatible liquids comprises a first resilient container 10 provided with a neck portion 13, a second resilient container 11 also provided with a neck portion 13, the containers 10, 11 being so located adjacent one another that the neck portions 13 cooperate to form a circular screw-threaded neck 15, a nozzle 33 secured to the neck 15 and provided with separate outlets 39, 40 for the liquids from the containers 10, 11 respectively, a flexible plastics conduit 41 extending from the container 10 through a hole 20 in the neck portion thereof to the outlet 39, and a further flexible conduit 42 extending from the container 11 through a hole 21 in the neck portion thereof to the outlet 40. The conduits 41, 42 are ribbed internally so that when the containers are squeezed air is forced from the upper part of each container through the holes 20, 21 and atomizes each liquid. The nozzle is connected to the neck 15 by an adapter 25 which has tubular projections 26, 27 frictionally engaged in the holes 20, 21. A rib 35 on the nozzle engages a groove 31 in the adapter. The containers may be secured together by a container tray (12), Fig. 2 (not shown), by a flexible frictional band (48'), Fig. 8 (not shown) or by lugs or grooves on their cooperating flat surfaces, Figs. 4 and 6 (not shown). The liquids, e.g. boric acid solution and hydrogen peroxide, may be inhaled directly from the nozzle 33.
Patent GB-482384-A (GB)
Title: Improvements in control systems for direct current electric motors
IPC: B60L15/04
Filed: 1936-10-06
Abstract: 482,384. Master control of D.C. motors; actuating controllers. GENERAL ELECTRIC CO., Ltd., and CROFT, E. H. Oct. 6, 1936, No. 27108. [Class 38 (iii)] Non-regenerative braking; field control. The armature and series field connections of a number of motors are arranged for forward and reverse power operation, and forward and reverse electric braking operation, by a remotely controlled switch provided with one operating device for actuation to the power positions, and another operating device for actuation to the braking positions. With the combined reversing-braking switch 11, 12, Fig. 1, in either of its inner positions II, III the pairs of motors 1, 3, and 2, 4, are connected for power operation in either the forward or reverse direction and controlled by armature resistance 9, series and parallel stages being provided and field weakening being effected by eontactors WF1-WF4, which connect and control diverting resistances 17, 18, one for each pair of motors. With the switch 11, 12, operated to either of its outer positions I, IV, the motors are connected to the resistance 9 for rheostatic braking, the fields 5-8 of the motors of each pair being crossconnected and the connected ends of each pair of fields interconnected. The switch 11, 12, is interlocked to prevent movement therof unless the main circuits are open, and to prevent completion of the contactor coils until the switch 11, 12, has been moved to positions corresponding to the master controller. A motor cutout switch 13 is provided whereby either pair of motors may be cut out, the cut-out switch being interlocked with the master controller so that transition to parallel connections of the motors cannot be effected with a pair of motors out of circuit, and a pair of motors cannot be cut out while the pairs of motors are in parallel. The switch 11, 12, is operated to its several positions by two air engines, as shown in Fig. 5. The pistons 72, 73 of one engine operate through a rod 74 on a pin 82 to move the switch to the positions II and III and the pistons 77, 78, of the other engine operate through a rod 79 on a pin 84, to move the switch to the positions I and IV.
Patent GB-616731-A (GB)
Title: Improvements in and relating to snap action electric switches
IPC: H01H1/24
Filed: 1946-09-10
Abstract: 616,731. Snap-action switches. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 10. 1946, No. 27180. Convention date, Sept. 10, 1945. [Class 38 (v)] A snap action switch has a flat bowed spring 27, which is supported at its ends in a cupshaped member 20 and rests on two fulcrum points formed by an annular ridge 11 on an insulating base 10. When a push button 26, which can slide in a flanged aperture 25 formed in the member 20, is depressed, the spring 27 snaps over the dead centre position to close the resilient blade contacts 12, 13 and lift the member 20 until it abuts a flange 32. On depressing the member 20 the spring snaps back allowing the contacts to open and returning the push button 26 and member 20 to their initial .positions.
Patent GB-1430895-A (GB)
Title: Lamella valve for piston compressors
IPC: F04B39/10
Filed: 1974-06-19
Abstract: 1430895 Valves HOERBIGER VENTILWERKE AG 19 June 1974 [28 June 1973] 27186/74 Heading F2V An inlet valve for a compressor comprises a seat 1 having passages 6 through it controlled by a flexible strip 5 clamped at one end, the other end moving in a gap 13 between the seat 1 and a stop member which may be the wall of the compressor cylinder or a spacer (8), Fig. 1 (not shown). The strip 5 pivots about an edge 15 of the stop so that its end 12 returns to contact the seat again which prevents further deflection of the centre portion of the strip. Two or more such strips may be provided.
Patent GB-1089870-A (GB)
Title: A device for the detection of faults in running filaments or threads
IPC: B65H63/06
Filed: 1966-06-17
Abstract: 1,089,870. Indicating and clearing faults in yarns. PHRIX-WERKE A.G. June 17, 1966 [June 19, 1965], No. 27264/66. Headings D1F and D1J. Faults, such as beads knots and stubs, are detected a running yarn by two parallel plates 10, 11 which are deflectable about axles 13, 14 and which have right-angled V-shaped notches in their ends. The ends of the plates overlap to form a square section opening 12 through which the yarn 2 passes. Means 19 is provided to indicate and/or count or initiate cutting of the yarn when a fault deflects the plates. The plates may be held together against stops 23, 24 by springs 21, 22, gravity, or magnetism the plates can be movable in a plane normal to the direction of yarn travel so as to enlarge or decrease the size of the hole. Initiating means 19 may be actuated by electrical contact 17, 15 which completes a circuit including an amplifier 20. The deflection of the plates may release a catch in a thread-cutting means. The plates may be located between the rollers (2, 4) of a stretch twisting frame.
Patent GB-952379-A (GB)
Title: Improvements relating to the treatment of acid tar
Inventor: BRADLEY DEREK
IPC: C10C1/00
Filed: 1961-07-27
Abstract: A process for obtaining a pitch fraction, hydrocarbons, and a sulphuric acid solution from acid tar comprises mixing the acid tar with water and a phenolic solvent, which is wholly or mainly cresylic acid, allowing the mixture to separate into inorganic and organic layers, subjecting the organic layer to fractional distillation, and recycling the phenolic solvent obtained. Dilute sulphuric acid of 40 to 50% w./w. in strength is recovered.  The phenolic solvent is preferably at least 95% cresylic acid. The separation is preferably carried out at from 40 DEG  to 60 DEG  C.  The sulphuric acid in the organic layer may be neutralized by the addition of ammonia solution. The mixture may comprise by volume 25-50% acid tar, 25-50% water, and from 25 to 50% phenolic solvent.  The acid tar may be obtained by acid washing petroleum or coal tar, or benzole separated from fuel gases.ALSO:A process for obtaining a pitch fraction, hydrocarbons and an acid solution from acid tar comprises mixing the acid tar with water and a phenolic solvent, which is wholly or mainly cresylic acid, allowing the mixture to separate into inorganic and organic layers, subjecting the organic layer to fractional distillation, and recycling the phenolic solvent obtained.  The phenolic solvent is preferably at least 95% cresylic acid.  The separation is preferably carried out at from 40 DEG  to 60 DEG  C. at which temperatures the sulphuric acid formed does not markedly sulphonate the cresylic acid. The viscosity of the pitch fraction may be reduced by the addition of oil to the organic layer, e.g. creosote oil, or strained anthracene oil.  The mineral acid in the organic layer may be neutralized by the addition of ammonia solution. The mixture may comprise by volume 25-50% acid tar, 25-50% water, and from 25 to 50% phenolic solvent. The acid tar may be that obtained by acid washing benzole, petroleum, or coal tar.
Patent GB-487566-A (GB)
Title: Earcap for telephone receivers or mouth-piece for microphones
IPC: H04R1/22
Filed: 1937-10-05
Abstract: 487,566. Acoustic resonators. JARNAK, N. P. R. Oct. 5, 1937, No. 27356. Convention date, Oct. 5, 1936. [Class 13] [Also in Group XXXIX] A resonator forming part of a telephone instrument and, as shown, embodied in an earpiece, comprises an earcap 3 formed with separate channels 4 .... 9 having separate openings in communication with a central opening and outlets 10 formed in the outer surface of the earcap. A modified construction, Figs. 3, 4 (not shown), comprises two adjacent sets of circularly arranged channels, the corresponding channels of each set being connected by a single hole and having inlet and outlet apertures in the curved wall of the central opening. The dimensions of the channels are such that their resonance frequencies are in the ratio 3 : 2. Specification 456,414 is referred to.
Patent GB-273925-A (GB)
Abstract: 273,925. Stevens & Co. (1914), Ltd., A. J., and Willson, H. C. Aug. 28, 1926. Receiving sets, construction of ; thermionic heterodyne receivers.-In order to facilitate wiring and the standardizing of parts, a multivalve set is built up of a number of small parts 4 - - 10, Fig. 1, each adapted to take a valve and associated component parts, mounted on the same baseboard with a number of lateral busbars 15 - - 18, and a separate front panel supporting the various tuning-elements. The main supporting frame and tuning panel are preferably made of metal so as to serve as a screen against " pick-up " and hand-capacity effects. The wiring-connections between the valve panels and the tuning controls are made either directly by short leads, or through the bus-bars, which also serve to distribute the current and voltage supplies from the high and low tension and grid-biasing batteries. The connections from the latter are made through long flexible leads 45, 48, 50, 51, 52, 54 and 57, Fig. 5, which pass through a centre hole in the bottom base-board. An additional panel, similar to one of the valve panels 4 - - 10 may serve as a support for tuning and reaction coils, and as a tuning unit. Fig. 5 shows the wiring connections of a supersonic receiver comprising three stages 4, 5, 6 of intermediate-frequency amplification, a detector stage 7, and two stages of low-frequency amplification 8, 9. The panel 10 houses the local oscillator, the grid and plate circuits of which are coupled through coils 33, 34 respectively, tuned by a variable condenser 37. A third winding 38 serves to induce the local frequency so generated into the receiving aerial 30 via terminals y<4> and m and through the bus-bar 16 to the point 39 on the aerial, the other end of the coil passing through terminals y<1> and i to the grid-bias battery via a flexible lead 57. The receiving frame 30 is tuned by a condenser 31 and vernier 32 mounted on the front panel. The positive low-tension supply lead 45 passes through the switch 46 associated with the telephone jack 23 to the top strip 1 of the supporting frame, the negative pole being connected to the bus-bar 15 through lead 48, terminal h, and resistance 49. The leads 50, 51, 52 are separate tappings from the high tension supply, the first passing through terminal k to the plates of the low-frequency amplifiers 8, 9, the second via the bus-bar 18 to the plates of the first four valves 4 - - 7, and the last to the oscillator valve 10. Two tappings 57, 54 from the grid bias battery pass to the valves 7, 8 and to the second low-frequency amplifier 9 respectively. Specifications 272,361, [Class 39 (i), Electric lamps, Arc &c.] ; 272,721; and 281,367, [Class 37, Electricity, Measuring &c.], are referred to.
Patent GB-385683-A (GB)
Title: Improvements in machines for producing hollow glassware
IPC: C03B9/24
Filed: 1931-10-03
Abstract: 385,683. Glass manufacture. EVANS, O., 27, Chancery Lane, London.- (Europaischer Verband der Flaschenfabriken Ges. ; 20, Breitestrasse, D³sseldorf, Germany.) Oct. 3, 1931, No. 27526. [Class 56.] Gathering molten metßl,. blowing.-In a glassblowing machine having a series of partible body blank moulds which gather mould charges by suction and wherein, during the suction and filling periods, the outer air is prevented from entering the suction cavities of the parison and neck moulds by withdrawal of air from the butt joints of the mould halves, a chamber loosely encloses the neck mould, said chamber being closed at the upper end by a neck plunger plate, and at the lower end by the parison mould, and being brought into communication as desired with means creating a partial vacuum. A mould carriage 11, rotating about a column 10, carries dipping frames 17, slidably mounted on the carriage and supporting neck and body blank moulds 15, 16 respectively. Each frame 17 is alternately raised and lowered through bell-crank lever 22 and cam 21, counterweights being connected through rods 23 and lever 24. While in contact with the molten glass supply 20, the moulds gather by suction. Each neck mould 15 is enclosed in a vacuum chamber 25 connected through an arm 26 to a collar 27 on a hinge pin 28. The chamber 25 has openings 29, 43 in the top and bottom respectively, the former supporting an adapter 30 which contacts with the inner surface of a flange 31 on the neck mould 15 and acts as a centring device therefor. The opening 43 has a flange 44 adapted for sealing contact with flanges 45 on the body blank or finishing moulds, when these are closed. The opening 29 is alternately closed by a plate 38, carrying a plunger 32 moved into the neck mould at regular intervals by means of a cam 34, link 35, gear segment 36, and rack bar 37, and a blow slide 39, mounted in a slideway 40 and operated in known manner through lever 42. The opening and closing of the body blank mould 16 is effected by a cam 16b through slide 16c, links 16e, and arms 16a, and of the neck mould 15 by a finger 15d, stops 15c, rod 15b, and links 15a. The finishing mould 18 is operated through a cam 18a and slide 18b. A passage 46 centrally of the arm 26 communicates through a conduit 47 and pipe 48 with a vacuum chamber 49 for gathering a charge. Air for expanding the blanks is supplied from a chamber 55 through pipe 54, passage 51, also in the arm 26, conduit 52, and passage 41 in the blow slide. Cooling air for the neck mould is led from chamber 59 by pipe 58, passage 57, port 62, channel 63, and ports 64, and exhausts through openings 65, such cooling being started at any time after positioning the blow slide and continued, if desired, until after removal of the finishing mould 18.
Patent GB-646334-A (GB)
Title: Improvements in or relating to securing catches and like devices
Inventor: CHATER RANDOLPH WINSTON
IPC: B60J7/185
Filed: 1948-10-22
Abstract: 646,334. Fastenings. TICKFORD, Ltd. Oct. 22, 1948, No..27563. [Class 44] A catch, particularly for securing the collapsable hood of a vehicle in raised position, comprises a dependent hook-like member H, Fig. 2, mounted on the under side of the canopy rail of the hood, and a manually operable pivoted lever 16, Fig. 1, mounted on a substantially vertical axis on the screen rail, the lever being provided with a cam-shaped nose 20 adapted to engage the hook member so as to draw the canopy rail downwardly and retain it securely when the lever is moved to a position where it lies flush with the inner surface of the screen rail. The lever 16 is mounted between two plates 11, 12, which with distance pieces 14 form a casing. The hook H passes through aligned apertures 19 in the plates to be engaged by the nose 20 of the lever, which is bevelled at 35, Fig. 2, to cooperate with a mating bevelled part of the hook to draw the latter down on first engagement.
Patent GB-1064166-A (GB)
Title: Improvements relating to apparatus for producing stabilised and synchronised frequencies
Inventor: LOBELLE MARCEL JULES ODILON
IPC: H04N5/12
Filed: 1964-07-03
Abstract: 1,064,166. Television. M.L. AVIATION CO. Ltd. Sept. 14, 1965 [July 3, 1964], No. 27575/64. Heading H4F. In a system which may alternatively be synchronized by pulses or by the output of a crystal oscillator after divison in a binary chain, each pulse is arranged to reset the binary divider so as to inhibit the synchronizing output from the divider in the presence of the alternative synchronizing pulses. In a dual standard television system, the outputs of two crystal oscillators at 3200 c/s. and 3840 c/s. are selectively fed into a five-stage binary divider so as to provide signals at 100 or 120 c/s. which are used to synchronize a bi-stable multivibrator or triggered oscillator at 50 or 60 c/s. in the frame control system.
Patent GB-1345469-A (GB)
Title: Process for the nitration of phenolics
IPC: C07C205/22
Filed: 1972-06-13
Abstract: 1345469 Nitration of phenols HERCULES Inc 13 June 1972 [30 June 1971] 27687/72 Heading C2C A process for the nitration of phenolics comprises introducing a nitratable phenolic material into an aqueous acid mixture containing HNO 2  and HNO 3  while maintaining the resulting reaction temperature within the range of from -15‹ to +15‹ C. and at a rate permitting substantially immediate conversion of intermediately formed nitrosophenolic to nitrophenolic product and comprising recovering the nitrophenolic product, said aqueous acid mixture prior to the introduction of said phenolic material into said reaction containing 0À2-3 moles per litre of HNO 2  and having a mole ratio of HNO 2  to total phenolic material introduced into said reaction within the range of 0À4 : 1- 1 : 1 is characterized in that said HNO 2  and HNO 3 . are the only acid ingredients in said aqueous acid mixture and that said aqueous acid mixture contains 2À3-10 moles per litre of said HNO 3  and contains said HNO 3  in a mole ratio to total phenolic material introduced into said reaction within the range of 4: 1-5 : 1. The examples describe the nitration of phenol, meta-cresol and 2-sec-butyl phenol.
Patent GB-1506037-A (GB)
Title: Method for defrosting frozen food and an apparatus therefor
IPC: A23L3/365
Filed: 1975-07-01
Abstract: 1506037 Defrosting T TAMANO 1 July 1975 27690/75 Heading A2D A method of defrosting frozen food by passing the food through a convection heating chamber comprises conductively heating the food within the chamber until the food reaches a temperature region at which ice crystals and liquid water co-exist in the food, enclosing the food within a smaller chamber within the convection-heating chamber to effect simultaneous conductive heating and di-electric heating and regulating the power of the two heating means to be equal until the food has passed through the temperature region. The conductive heating may be carried out using heat dry air, heated humid air, steaming, immersing in hot water or infrared irradiation. The method may be carried out in an apparatus comprising a casing defining a chamber and provided with a tray inlet and outlet dimensioned to take trays one by one out of the casing, food carrying trays, a tray circulating system adapted to circulate the trays horizontally disposed, a cover consisting of a pair of half members provided in the upper portion of the casing and adapted to be opened during tray circulation and to be closed when circulation stops so as to define an enclosed chamber around a predetermined tray, means for irradiating micro-waves onto the enclosed tray, means for forming an atmosphere of heated air or steam within the casing and means to control the circulation of the trays, for closing the cover about a predetermined tray and irradiating said tray with micro-waves for a required time whilst simultaneously exposing the tray to conductive heating. A suitable apparatus is shown in Fig. 1 and comprises casing 10 provided with tray inlet 12A and cutlet 12B. The trays 24 are carried on a circulating system 13 which consists of a series of buckets 25 attached to an endless chain 30 (Fig. 4, not shown). The casing is provided in an upper portion with a micro-wave irradiator 57 and in a lower portion with reservoir section 41 which by heating means 84 and/or heat exchanger 43 (Fig. 2, not shown) provides humid air, steam or heated water to conductively heat the foodstuffs in the trays. In the upper portion of the casing there is also provided a cover 61 which consists of two pivotally mounted parts 61a and 61b which parts are arranged to close about a trav 24 immediately prior to micro-wave irradiation. A nozzle may be inserted through hole 76 to spray water onto the enclosed foodstuff. There may be further provided within the cover 61, infra-red heaters 85.