baber/WOPTO huggingface dataset:
Patent GB-405890-A (GB)
Title: A process for the manufacture of cardio-active materials from the glucosides of digitalis and scilla
IPC: C07G3/00
Filed: 1933-07-24
Abstract: The glucosides of Digitalis and Scilla or mixtures thereof are treated with enzymes present in Digitalis and Scilla, whereby they are hydrolysed, and cardioactive glucosides not containing a glucose residue are obtained.  The glucosides may be treated before, during or after their extraction from the fresh or dried drug, and the treatment may be effected in water or in an aqueous solution of an organic solvent, or--when starting from the fresh drug--in the presence of a compound capable of killing the cells and arresting putrefaction, e.g. ethyl acetate, chloroform, toluene, methanol or ethanol.  Glucoside A of Digitalis lanata (cf. Specification 370,344) is converted by the process into a new glucoside which yields on acid hydrolysis an aglucone (digitoxigenin), digitoxose, and acetic acid; if the new glucoside is disacetylated with dilute alkali solution, digitoxin is obtained.  Glucoside B of Digitalis lanata is converted into a new glucoside which yields on acid hydrolysis an aglucone (gitoxigenin), digitoxose, and acetic acid; if the new glucoside is disacetylated, gitoxin is obtained.  Glucoside C of Digitalis lanata is converted into a new glucoside which yields on acid hydrolysis an aglucone (digoxigenin), digitoxose, and acetic acid; if the new glucoside is disacetylated, digoxin is obtained.  The disacetylated glucosides A, B, and C of Digitalis lanata (cf. Specification 406,197) are similarly converted into nonglucosic glucosides.  The Scilla glucoside scillaren A is converted into a new glucoside, called proscillaridin A, which yields on acid hydrolysis an aglucone (scillaridin A) and rhamnose.  In the examples: (1) comminuted fresh bulbs of Scilla maritima are allowed to stand in ethyl acetate for five days, during which time the enzyme present (scillarenase) converts the scillaren A into proscillaridin A, which is then isolated by a series of operations described in detail; (2) an enzyme preparation is obtained from comminuted bulbs of Scilla maritima by immersing them in water saturated with thymol, allowing the mixture to stand for 14 days, and filtering the product successively through cloth and a talc filter; the portion retained by the talc filter contains the enzyme; scillaren A is treated with this preparation in a mixture of water, toluene and acetic acid, and after 20 hours the mixture is filtered and proscillaridin A isolated from the filter residue by an extraction process; (3) comminuted leaves of Digitalis purpurea are allowed to stand in ethyl acetate for 3--4 days, whereby the glucosides are coverted into digitoxin, the isolation of which from the product is described; (4) dried leaves of Digitalis lanata are treated as in example 3 to produce a mixture of nonglucosic glucosides; (5) the disacetylated glucoside A of Digitalis lanata is treated for 2--3 days in ethanol solution with comminuted leaves of Digitalis purpurea; a nonglucosic glucoside resembling digitoxin is obtained.  Specification 357,926 also is referred to.
Patent GB-391422-A (GB)
Title: Nozzle for electrode systems
IPC: H05B31/00
Filed: 1931-07-21
Abstract: 391,422. Heating by electricity. PRESSLICHT-PATENTVERWERTUNGSGES, 6A, Wallnerstrasse, and WIST, E., 16, Beckmannstrasse, both in Vienna. July 21, 1931, No. 20828. Convention date, Aug. 6, 1930. Void [Published under Sect. 91 of the Acts]. [Class 39 (iii).] The outlet of a " nozzle " 1 for use in the production of a flame are by means of a gas blast in conjunction with concentric carbon electrodes is restricted by an internal annular projection 2. The projection need not be at the extreme end of the nozzle, and the inner electrode 4 may be elongated in cross-section. In Fig. 3 the projection is formed by an extension 7. In Fig. 8 the " nozzle " is formed with an expanded internal chamber.
Patent GB-952747-A (GB)
Title: Improvements in optical aids
IPC: G02C3/04
Filed: 1960-06-14
Abstract: 952,747. Optical aids with cases. A. MATTEI. Aug. 21, 1961 [June 14, 1960], No. 20855/60. Heading G2J. An optical aid comprises one or more lenses hingedly mounted to an enclosing case for movement between a position in which the lens(es) are enclosed in the case arid a viewing position. As shown the plastic or metal case comprises two parts 9, 11 hinged together and urged by spring 17 into their open position. It is mounted on a strap 22 for attachment to the user's wrist but could be mounted on a handle or knob. Two eyepieces 5 are connected by a bridge 13 hinged at 15 and one eyepiece is mounted on a lever 7 which is hingedly connected by brackets to part 9 of the case and is urged by spring 19 into the position shown.
Patent GB-332724-A (GB)
Title: Improvements in manifolding packs
IPC: B41L1/16
Filed: 1929-07-06
Abstract: 332,724. Brenn, C. W. July 6, 1929. Paper-supports strip and web feeding arrangements.-Machifolding pads or packs, adapted more particularly for use in typewriters, comprise a number of superposed paper strips 10, Fig. 1, with a separate carbon strip 13 interleaved between each pair, the strips being secured together by staples 15 or other means spaced along their lengths to keep them in registration during the making of entries thereon, and folded transversely into a zig-zag pile. To enable the pad to be fed regularly within a typewriter of the automatic or other type having a roller platen provided with feeding or aligning-pins 20, Fig. 3, one of the strips 10, preferably the bottom one, is formed with wide lateral margins 21 provided with a longitudinally extending series of apertures 23 to engage the feeding-pins, channelled fingers 24 being provided on the platen carriage to extend above the pins and retain the apertured margins upon the platen.
Patent GB-1427519-A (GB)
Title: Method and apparatus for pattern recognition
IPC: G06V30/194
Filed: 1972-05-04
Abstract: 1427519 Pattern recognition systems NATIONAL RESEARCH DEVELOPMENT CORP 2 May 1973 [4 May 1972] 20858/72 Heading G4R The system employs a read-only store comprising an array of fusible resistors. During a training mode the store is set up by fusing certain resistors when each of a number of training patterns is applied to the store. During a recognition mode the training pattern most closely resembling an applied pattern to be recognized is indicated. The arrangement shown in Fig. 1 has a photosensor array 10 which scans a character, fingerprint, or other pattern. The photosensor outputs are normalized at 12, for example by subtracting the mean of the maximum and minimum outputs from each output, to compensate for contract variations. Amplifiers 14 receive the output of normalizer 12, and each amplifier i provides an output r+2V/3 on lead a i  and an output r-2V/3 on lead b i , or vice versa, dependent upon the sign of the input to the amplifier. Voltage V is the fusing voltage of the resistors forming read-only store 16, and r is a reference voltage. All the amplifier output leads are connected via fusible resistors to all the output leads c1-c n  and d1-d n  of the store. The number n is the number of training pattern to be applied. During the training mode a sequence of training signal patterns corresponding to reference patterns is applied to the store inputs a1-a100, b1-b100, and, for each training pattern, the corresponding pair of output leads, e.g. c1, d1, is connected to r+2V/3 and r-2V/3 respectively. As a result certain of the resistors associated with the output leads are fused away. In the recognition mode the output leads c and d are connected as shown to differential amplifiers g1-g n . When an unknown pattern is scanned by the photosensors the signals from amplifiers g pass to circuit 18 which determines which of the amplifiers is providing the greatest output. A signal appears on the corresponding lead k1-k n  and indicates the training pattern most clearly resembling the unknown pattern. If none of the outputs of amplifiers 9 is greater than a reference voltage applied to terminal 23 a signal appears at kt to indicate lack of recognition.
Patent GB-1468040-A (GB)
Title: Methods of making fibre reinforced plastic pipe
IPC: B29C48/09
Filed: 1974-05-10
Abstract: 1468040 Fibre-reinforced plastic pipes CIBAGEIGY AG 10 May 1974 [10 May 1973] 20889/74 Heading F2P A fibre-reinforced plastic pipe is made by applying a tube of resin-absorbent material upon a first mandrel section, continuously advancing the tube across a gap between the first mandrel section and a second mandrel section in alignment therewith, applying a thermosetting resin to the tube as it passes over the gap in sufficient amount to saturate the tube, at least partially curing the resin prior to the arrival of the advancing resinsaturated tube on to the second mandrel section to provide a conveyer tube, applying bands of thermosetting resin compositioncoated continuous fibre elements on to the conveyer tube, and curing the resin to form a pipe of which the conveyer tube is an integral part. The tube of resin-absorbent material may be formed from strips of kraft paper longitudinally applied to the first mandrel section from four rolls 16 (Fig. 1). As the advancing pipe assembly draws the paper off the rolls the strips are guided through a slotted guide member 22 (Fig. 3) so that their longitudinal edges slightly overlap. Strips of reinforcing strands 30 (Fig. 4) coated with a dry partially gelled thermosetting resin may be applied circumferentially about the longitudinally extending strips 17 from rolls 26. A strip 31 of porous material such as tissue paper may be wound on top of the strands before the application of heat from a heater 32. Sufficient heat is applied to bond the strands to the paper tube without allowing the resin to flow through the tube. As the tube advances over the gap 14, which is a mandrel section of reduced diameter, resin is applied from a metering pump 34 to saturate the tube and preferably provide an inner coating 36. While still in the gap 14, heat is applied at 38 to at least partially cure the resin before the conveyer tube is rounded up on the second mandrel section 12. Windings of continuous fibre elements, e.g. glass filaments or rovings are applied to the conveyer tube at 40, 42 and 44 (Fig. 1A), the tube leaving the mandrel in the region of a sealing cup B and being then filled with air under pressure to resist the compressive forces of the windings. Air is provided through a fitting 58 in a stationary coupling member 54 which connects with a rotary coupling (Fig. 6, not shown) fixed to the mandrel and in communication with a tube 52 extending through the mandrel. The end of the mandrel carries the outlet for the tube 52 and a sealing cup B (Fig. 1A; also Fig. 5, not shown) which engages the interior of the pipe being fabricated. The air is maintained under pressure by a floating piston C (Fig. 1B; also Fig. 7, not shown) secured by a tie rod to the end of the mandrel. The pipe is wound with a strip 70 of tissue paper prior to curing the resin by passage through a series of ovens 72, 74, 76, 78. The pipe is advanced and rotated by a puller D, and lengths of finished pipe are cut-off at E. The thermosetting resin utilized may be an epoxy or polyester resin.
Patent GB-338157-A (GB)
Title: Improvements relating to meat or like holders
IPC: B26D7/02
Filed: 1929-07-08
Abstract: 338,157. Smith, G. A., (trading as Smith Co., G, A.), and Williams, F. W. July 8, 1929. Cutting slices in succession. - The meat is substantially encircled by a springy band a which is pressed down on the meat by the usual clamping-bar of the machine. As shown, the band a is provided with a spring clip e which attaches the band to one of the clamping posts f. The ends b of the band are turned outwards, one end resting on the meat table and the other engaging between the downturned rows of spikes on the clamp bar c. An additional support d for the band may be provided. In a modification, the band a is formed in two halves pivoted together with a spring which tends to separate the two halves. The invention is applicable to clamps on feed tables or display trays.
Patent GB-706045-A (GB)
Title: Improvements in or relating to the drying of gases
IPC: B01D53/02
Filed: 1951-09-05
Abstract: 706.045. Drying gases. BRITISH OXYGEN CO., Ltd., SCHUFTAN, P. M., and WEBSTER, T. J. Aug. 7, 1952 [Sept. 5, 1951], No. 20992/51. Class 34(1) In gas drying apparatus in which the gas to be dried passes downwardly through a bed of adsorbent material the drier is regenerated by heating the bed under the pressure at which drying is carried out, removing the residual water by flushing with a small amount of dried gas while the heating continues and cooling the bed by passing more dried gas upwardly through it. Driers 1, 2 have electric shell heaters 3, 4 and the inlet pipe 5 for the gas to be dried leads through a Venturi nozzle 6 and vaporization cooler 7 to a water separator 8 and the inlets of driers 1, 2 controlled by valves 13, 14, the outlets being connected by.pipes 15, 16 controlled by valves 17, 18 to main outlet line 19. From the inlets of the driers pipes 20, 21 controlled by valves 22, 23 lead through pipe 24 to one phase of a heatexchanger 25 and thence through pipe 26 to a water cooler 27 and separator 28 and from the separator a pipe 31 leads through valve 32 to the throat of the Venturi nozzle 6. The other phase of the heat-exchanger 25 is connected by pipes 33, 34 controlled by valves 35, 36 to pipe 15 and by pipes 37, 38, controlled by valves 39, 40, to pipe 16. In operation with drier 1 being used and drier 2 being regenerated valves 13, 17, 23, 32 are opened while valves 14, 18, 22, 35, 36, 39, 40 are shut. Heater 4 is switched on and the adsorbent allowed to reach regeneration temperature. Steam and gas formed by the heating of the adsorbent are drawn by suction from the throat of the Venturi 6 through pipes 21, 24 and heat-exchange 25 and pipe 26 to cooler 27 where the steam is condensed thence to separator 28 where condensed water is removed and to Venturi 6 where the gas rejoins the main stream. Residual moisture is now flushed out of the drier by opening valves 39, 40 for a short period, the gas drawn through pipe 37 being heated by passage through the heat exchanger 25. After flushing is completed valves 39, 40 are closed, heater 4 is switched off and the drier is cooled by opening valve 18 to admit a stream of cold dried gas drawn by Venturi suction.
Patent GB-1466192-A (GB)
Title: Non-regenerative h f alkylation process
IPC: C07C9/14
Filed: 1974-05-13
Abstract: 1466192 Alkylating isoparaffins UOP Inc 13 May 1974 [14 May 1973] 21015/74 Heading C5E A process for alkylating an isoparaffin, e.g. C 4 -C 7  with an olefin, e.g. C 3 -C 7  in contact with a hydrogen fluoride catalyst, to produce a normally liquid alkylate product, comprises the steps of: (a) reacting said isoparaffin with said olefin, in admixture with said catalyst, in an alkylation reactor to produce effluent containing alkylate, unreacted isoparaffin, catalyst and polymer; (b) introducing at least a portion of said effluent into a first separation zone and recovering therefrom a hydrocarbon phase and a hydrogen fluoride phase containing said polymer; (c) recycling a portion of said hydrogen fluoride phase to said reactor; (d) combining at least a portion of the remaining hydrogen fluoride phase with at least a portion of said hydrocarbon phase, the latter having been heated to such a temperature that the resulting mixture has a temperature of from 50 to 95 C. and introducing the mixture into a second separation zone; and, (e) recovering from said second separation zone (i) unreacted isoparaffin and (ii) alkylate product, containing polymer.
Patent GB-792134-A (GB)
Title: Improvements in or relating to castor and like devices
Inventor: HUNT HENRY HARGRAVE
IPC: B60B33/00
Filed: 1955-07-21
Abstract: 792,134. "On and off" castors. HUNT- & SON, Ltd., H. May 31, 1956 [July 21, 1955], No. 21091/55. Class 52(1) "Onand off " castors for an article with adjustable splayed legs, such as a vaulting horse, comprise castor heads 13 pivoted to fixing brackets 10 so that the castors fall by gravity when the legs are raised and are retained in lowered position by pawls 16, also gravity operated, the pawls of a pair of associated castors being connected by universal joints to a telescopic coupling- tube 20 serving as a handle to disengage the pawls.
Patent GB-1034068-A (GB)
Title: Improvements in or relating to a power operated knife
IPC: B26B7/00
Filed: 1965-05-18
Abstract: 1,034,068. Slicing knives. SCOVILL MANUFACTURING CO. May 18, 1965 [June 22, 1964], No. 21101/65. Heading A4C. A power driven slicing knife for meat and other foods, comprises a pair of counter-reciprocated, facing blades 12, 13 having tongs 18, 19 releasably engaged in the handle 10, 11, the handle having manually operable blade release means, e.g. knob 66, and the drive including a pair of rotary cams 42, 43 which are 180 degrees out of phase. The tongs 18, 19 are releasably mounted in carriers 22, 23 having side openings 31 to receive inturned spring arms 35 of a pair of blade retainers, the arms 35 being apertured to receive spigots 20 on the side faces of the tongs 18, 19 for a driving engagement. The upper ends 34 of the retainers may be pushed apart by moving the knob 66 against the resilience of the retainer to disengage the spigots 20 and thereby release the blades. In an alternative release mechanism (Fig. 10, not shown), a spring button 73 has a conical end engaged between the ends 34 of the retainers. Driver bars 36 are secured one to each carrier 22, 23 and are each formed at the free end with a pair of facing flanges 38, 39 having a cam 42 or 43 engaged therebetween. The cams 42, 43 are mounted on a common shaft 41 with a gear 40 driven by a motor 55 through a worm 58, whereby the cams 42, 43 when driving- ly rotated counter-reciprocate the driver bars 36 by the continual engagement with the flanges 38, 39. A finger switch 59 in the motor circuit is spring biassed to the open position.
Patent GB-153985-A (GB)
Title: Improvements in and relating to apparatus for re-magnetising magnetos
IPC: H01F13/00
Filed: 1919-08-28
Abstract: 153,985. Wood, S. Aug. 28, 1919. Re-magnetizing magnetos. - Re-magnetizing- apparatus for magnetos comprises an electromagnet with fixed and adjustable pole-pieces a', b<1> between which the magneto A is placed. The pole-piece b<1> is held to its core by a single screw j and slot. The coils d are connected to terminals e; a resistance f and switch g are also provided.
Patent GB-614487-A (GB)
Title: Improvements in or relating to fluid flow meters
IPC: G01F1/46
Filed: 1946-07-15
Abstract: 614,487. Fluid-flow meters. POOLE, R. July 15, 1946, No. 21165. [Class 69 (i)] A nozzle for a fluid-flow meter comprises two adjacent tubes A, B, the lower portions A<2>, B<2> of which are turned through a right angle, the portion A<2> being within and concentric to the portion B<2>. The end A<3> of the portion A<2> is outwardly flared and backwardly turned to form an annular baffle extending transversely across, and spaced at a distance from, the end of the tube B. Fluid passes to the flowmeter through the opening A<4> of the tube A and returns by way of the tube B and the opening B<5> which is situated in an area of reduced pressure. Specification 586,535 is referred to.
Patent GB-355895-A (GB)
Title: Improvements in epicyclic gears
IPC: F16H3/54
Filed: 1930-07-12
Abstract: 355,895. Reversing-gearing. ROYCE, SIR F. H., Nightingale Road, Derby. July 12, 1930, No. 21167. [Class 80 (ii).] Epicyclic reversing-gearing comprises a sun wheel m slidably spliced to the driving &c., shaft c and carrying with it, as it slides, planet gears m<1> in a carrier m<2> supported on both sides of the sun wheel on axial extensions o. The planets m<1> are in sliding engagement with an internally-t o o t h e d wheel m<4> secured to the driven &c. shaft d. When the gear unit is slid to the right as by a striker n<2>, a clutch ring n on a sungear extension engages a clutch ring m<7> on shaft d effecting a solid forward drive. When the gear unit is slid to the left, a clutch ring m<8> on the carrier m<2> engages a fixed toothed ring l whereby the shaft d is driven reversely through the train at reduced speed. This reversing-gear is described in combination with change-speed epicyclic gearing forming the subject-matter of Specification 356,094. Specifications 350,114 and 351,121 also are referred to.
Patent GB-1395645-A (GB)
Title: Asynchronous data buffers
IPC: H04J3/17
Filed: 1972-05-06
Abstract: 1395645 Digital transmission; T.D.M. systems GENERAL DATA COMM INDUSTRIES Inc 6 May 1972 21226/72 Heading H4P A character interleaved TDM system transmitting data without a separate channel for supervisory, control &c. signals comprises an asynchronous data buffer having an input register for data of variable bit length and an input means for receiving a control character, with an output register for storing either data or control characters and providing an empty signal to a gate also receiving a full signal when the input register has a determined number of bits, the gate initiating transfer of data from one to the other. A means responsive to a high speed timing signal and output empty signal causes transfer of a control data character into the output register which is shifted out by similar timing signals. The arrangement therefore operates as one channel time slot for each source and sink. The receiver operates in a reverse manner. Fig. 1 shows a single channel A of a TDM system and comprises a data buffer 100 receiving data from say a teletypewriter, punched cards &c. also control signals which are transferred at least every frame interval by synchronous multiplexer 102 which supplies read out timing signals via 111, read-out being character interleaved with other channels and transmitted through link 105. At the receiving end, the data stream is de-interleaved and channel A data and sync. burst timing signals are supplied by 112, 113 to receive asynchronous buffer 104 which identifies and separates data from control &c signals and forwards them to an appropriate circuit. Each N time slots may have a framing and sync. slot containing say 7 bit Barker code and each slot is adjusted to just accommodate the number of bits in a particular character. In an embodiment described, Fig. 3 (not shown), start bits are transmitted but stop bits are removed. Similarly control characters are identified by an initial bit of opposite type to start bits, which makes the system transparent to start stop codes. A validation test may be performed on any channel by looping back at the far end the secondary data so that the "round trip" transmission of secondary data may be observed, this being performed without interfering with the transmission of primary data.