baber/WOPTO huggingface dataset:
Patent GB-1189491-A (GB)
Title: Improvements in and relating to Prehensile Devices
Inventor: RING NIGEL DENNIS
IPC: G01L5/22
Filed: 1967-03-29
Abstract: 1,189,491. Artificial hands. NATIONAL RESEARCH DEVELOPMENT CORP. 18 June, 1968 [29 March, 1967], No. 14355/67. Heading A5R. [Also in Divisions B8 and G1] A prosthetic hook is provided with a shear force transducer 50 which is used to control the supply of gas to a pneumatic motor cylinder (not shown) to regulate the gripping force in dependence on the shear force.
Patent GB-785069-A (GB)
Title: New heterocyclic compounds
Inventor: PEEL MERVYN EVAN
Filed: 1955-05-18
Abstract: The invention comprises 5-isobutyl-5-ethyl-1-methylthiobarbituric acid and its sodium, calcium and lithium salts, the preparation of the acid by reacting N-methylthiourea with an isobutyl-ethyl-malonic acid dialkyl ester in a solution of an alkali metal alkoxide in a lower (1-3C) aliphatic alcohol, or with a lower (1-4C) alkyl ester of isobutyl-ethyl-cyanoacetic acid followed by hydrolysis, and the preparation of the salts by reacting the acid with an aqueous alkali or with a metal alkoxide dissolved in the corresponding alcohol.  The products are useful as surgical an sthetics.  In examples: (1) isobutyl-ethyl-malonic acid diethyl ester and N-methylthiourea are refluxed with a solution of sodium ethoxide in ethyl alcohol; (2) and (4) 5-isobutyl-5-ethyl-1-methylthiobarbituric acid is reacted with a solution of sodium ethoxide in ethyl alcohol; (3) isobutyl-ethyl-cyanoacetic acid ethyl ester is reacted as in (1), and the resulting 5-isobutyl- 5 - ethyl - 1 - methyl - 4 - iminothiobarbituric acid is hydrolysed with dilute hydrochloric acid.
Patent GB-1508034-A (GB)
Title: Snap hinge
IPC: E05D11/10
Filed: 1975-04-08
Abstract: 1508034 Hinges BLUM GmbH 8 April 1975 [12 April 1974] 14431/75 Heading E2F A snap hinge for furniture doors having an opening angle of 180‹ comprises a tilting assembly 4, a hinge boss 13 on the door and a mounting plate 12 on the furniture side wall which are interconnected by articulations 1', 2' and 3' such that a rocker arm 5, pivotable about an axle 6, is provided with a recess 7 into which a stop part 8 of an articulation snaps in and another recess 11 is provided in the rocker arm 5 in which fits a guide 9 carrying a compression spring. Figs. 1 and 3 illustrate the closed and open positions of the hinge respectively. The tilting assembly 4 may be housed in a plastics casing (Fig. 2, not shown).
Patent GB-137007-A (GB)
Title: Improvements in and relating to Fans with Folding Blades.
Inventor: JACCARD ALEXIS
IPC: F04D25/08
Filed: 1919-06-06
Abstract: 137,007. Jaccard, A., and Koff, J. June 6, 1919. Driving-gear. - A hand - carried screw fan having folding blades is actuated by a toothed wheel train d, r, c, a ratchet wheel e and a lever f fixed to it, and a finger lever g engaging the lever f and pivoted on the fan spindle c<1>. When not in use, the three fan blades lie over one another, but when the shaft is rotated they separate and their positions are determined by three pins projecting from the framework a sufficient distance to engage the first, second and third blades respectively.
Patent GB-906033-A (GB)
Title: Improvements in and relating to gas and liquid analysers
Inventor: MARTIN ALBERT EDWARD
IPC: G01J3/427
Filed: 1958-05-06
Abstract: 906,033. Photo - electric fluid analysis. GRUBB PARSONS & CO. Ltd., Sir HOWARD. April 24, 1959 [May 6, 1958], No. 14453/58. Class 40 (3). In a gas or liquid analyser for determining the concentration or constituents of the fluid, radiation passing through a chamber containing the fluid sample is either varied cyclically in wavelength over a range of values or varied discretely and rapidly from one wavelength to another. The wavelengths are so chosen that the fluid sample has an absorption band at one frequency but substantially no effect at another. The effect on the radiation is determined photoelectrically. In a first embodiment, Fig. 1, mirrors M1, M2 direct radiation from a source S on to a diffraction grating G and the diffracted radiation on to a photo-cell D. A cell C contains the test sample. The grating G is rocked between the positions AB, A<SP>1</SP>B<SP>1</SP> so that the spectral interval falling on the photo-cell D varies cyclically. The sample in the cell C will produce an absorption effect at some frequency in the range of wavelengths scanned across the photo-cell so that the photo-cell output will have a large alternating component. In a second embodiment, Fig. 3 (not shown), the grating G is fixed and a transparent wedge is placed in the optical path and rotated at constant speed thereby to cause the angle of incidence on the grating to be varied. A third embodiment, Fig. 4 (not shown), uses a spherical mirror whose optical axis makes a small angle with a second axis about which the mirror is rotated to produce the variation in wavelength. In a further embodiment, Fig. 5, discrete variation from one wavelength to another is obtained by rotating a slotted disc T in front of the radiation source S. As shown, two radiation beams are formed by use of a mask R, and the disc T allows one or other of these beams to pass to the fixed grating G and from thence to the detector D. In one modified form of Fig. 5 the mask R is omitted, and in other forms either mirror M4 or grating G is made in two parts at an angle to each other, a single source and slotted disc being used to pass radiation alternately on the two parts. An oscillating mirror can be used to obtain the variation in wavelength.
Patent GB-682804-A (GB)
Title: Dwelling-house floor elements and floors constituted therewith
IPC: E04F15/04
Filed: 1950-06-09
Abstract: 682,804. Wood flooring. CUPIF, L. June 9, 1950 [June 13, 1949; June 3, 1950], No. 14489/50. Classes 20(iv) and 87(i) [Also in Group XXIII] A wood flooring element 1 is formed in its upper and lower faces with grooves 2, 3 parallel with the grain; those in the lower face being wider than those in the upper face, and in its side faces with grooves 4a, 4b. The grooves in adjacent side faces may be at different levels. A panel may be formed by connecting a number of elements together by metal strips engaged in the grooves 4a, 4b.
Patent GB-765937-A (GB)
Title: Improvements relating to submersible electrically driven pumps
Inventor: PENLINGTON THOMAS EDWARD
IPC: H02K5/128
Filed: 1953-05-26
Abstract: 765,937. Induction motors. BERESFORD & SON, Ltd., J. May 26, 1954 [May 26, 1953], No. 14582/53. Class 35. The start-run connection changes of a split phase motor driving a submersible pump are made by an electric device energized by an auxiliary winding on the motor and disposed with the motor windings in a chamber sealed in liquidtight manner from the rotor space, the cable lead into the motor being of two core type. As shown, the auxiliary winding 14 is so designed that on reaching a predetermined speed when starting, the voltage induced therein and applied to coil 151 of the relay is sufficient to operate the latter and disconnect the starting winding 11. If the relay is replaced by a bimetallic switch, the heating coil of the latter is fed by the auxiliary motor winding and at the predetermined speed the heating effect becomes sufficient to operate the switch. Specifications 750,291, 750,296, 750,301, 750,302 and 765,936 are referred to.
Patent GB-1106861-A (GB)
Title: 4-arylpyridines, their acid addition salts, and processes for the preparation thereof
Inventor: BIEL JOHN HANS
IPC: C07D213/40
Filed: 1965-04-06
Abstract: Novel compounds of Formula I <FORM:1106861/C2/1> wherein R1 and R2 each represent hydrogen, chloro, bromo, iodo, fluoro, trifluoromethyl, amino, nitro, lower alkyl, lower alkoxy, hydroxy, phenyl, phenoxy, benzyl, mono- or di-(lower)-alkylamino, lower alkanoylamino, lower alkylthio, sulphamyl, lower alkanoyl, lower alkylsulphonyl, cycloalkyl having from 5-7 carbon atoms or cycloalkyloxy having from 5-7 carbon atoms, or R1 and R2 may together represent a methylenedioxy group, Y is a lower alkylene radical, Z is hydrogen, lower alkyl, pyridyl, thienyl or a radical of formula <FORM:1106861/C2/2> <FORM:1106861/C2/3> wherein n is zero, or an integer from 1 to 6, and R3 and R4 may have any of the values given for R1 and R2 above, and the pharmaceutically acceptable, non-toxic, acid addition salts thereof, e.g. with a penicillin, are prepared (1) by reacting, in a suitable medium at 50-100 DEG  C. and in the presence of a base, a compound of Formula IV <FORM:1106861/C2/4> with a substantially equimolar amount of a compound of Formula V <FORM:1106861/C2/5> wherein A is chloro, bromo, iodo or tosyloxy, (2) where Y separates N from CO by two carbon atoms, by reacting, in a suitable medium at 50-100 DEG  C. and in the presence of a base, a compound of Formula IV above with a substantially equimolar amount of a compound of formula <FORM:1106861/C2/6> wherein R5 and R6 are each hydrogen or lower alkyl and together contain not more than six carbon atoms, or (3) by reacting, in a suitable medium at 50-100 DEG  C. and in the presence of a base, a compound of Formula IV above with a substantially equimolar amount of a compound of formula A-Y-COOR7 where R7 is methyl, ethyl, p-nitrophenyl or cyanomethyl, or -OR7 is chloro or bromo, and then reacting the compound which is N-substituted by a group of formula -Y-COOR7 thus obtained with an appropriate cyclopropylamine.  The starting materials of Formula V above may be prepared by reacting a cyclopropylamine derivative with a substantially equimolar quantity of a compound of formula A-Y-COCl. Therapeutic compositions having analgesic and antihypertensive activity, which may be administered orally or parenterally, contain as active ingredient a compound of Formula I above or a pharmaceutically acceptable non-toxic acid addition salt thereof.
Patent GB-1532090-A (GB)
Title: Collimator gunsight
IPC: G02B27/34
Filed: 1976-04-09
Abstract: 1532090 Gunsight graticules RING SIGHTS Ltd 31 March 1977 [9 April 1976] 14595/76 Heading G2J A collimator gunsight includes an arrangement for presenting a graticule pattern to an eye, said arrangement comprising a tubular body 1 containing a collimator lens, a transparent body 3, a source 4 of artificial light which illummates the mouth of a bore 6 in body 3, and an annular projection surrounding bore 6 and having a frusto-conical inner surface 7 so that ambient light entering the body 1 and by-passing the source 4 is diverted toward the aperture of the collimator lens. An opaque disc 11 covers the remainder of the inner end 5 of body 3. Under low ambient light conditions the graticule appears as a bright central spot. Under high ambient light conditions, the graticule appears as a bright ring corresponding to surface 7. An alternative embodiment, Fig. 2 (not shown), is a reflex gunsight, and bore 6 is omitted.
Patent GB-1322126-A (GB)
Title: Personnel protection systems
IPC: G01V15/00
Filed: 1971-05-13
Abstract: 1322126 Signalling approach of trains BERGWERKSVERBAND GmbH 13 May 1971 [29 May 1970 (2)] 14637/71 Heading B7N [Also in Division B8] Personnel in mines &c., are protected from danger spots such as conveyers, crushers &c., by each carrying a small radio transmitter S1, which has no accessible means by which it may be turned off. A receiver E is positioned at the danger spot and when it receives a signal from any one of the transmitters, it causes a warning or indicating means to be operated, causes a conveyer &c. to be stopped, or operates means to deny access to the zone containing the danger spot. The latter may be surrounded by a screen 2 such as a Faraday cage. Part of the latter may be formed by conductive staging of a mine gallery &c. The receiver may be mounted on the front of a moving train or conveyer (Fig. 9, not shown). The transmitters may be mounted in miners' head lights. There may be a test receiver in a zone where transmitters are initially collected by personnel. This may operate a turnstile &c., so that personnel not equipped with a transmitter, may be denied access to plant.
Patent GB-479655-A (GB)
Title: Improvements in and relating to devices for indicating the content of fuel supply tanks
IPC: G01F23/20
Filed: 1937-05-27
Abstract: 479,655. Weighing contents of fuelsupply tanks. VOIGT, C. A. May 27, 1937, No. 14689. Convention date, May 27, 1936. [Class 143] Hydrostatic apparatus.-A resilient mounting for a fuel-supply container particularly for use on aircraft, comprises a rubber mounting member which is bonded, on one side to the fuelsupply container, and on the other side to a fixed mounting member, and wherein an indicating fluid is provided between the rubber and fixed mounting members and is adapted to act on a weight-indicating apparatus. As shown, the fuel container 1 is bonded to a rubber member 2 by means of a lug 6 and is guided by a member 3. The rubber member is secured in a mounting receptacle 7 containing fluid 8 communicating with an indicating device 10. A throttle 14, preferably adjustable, minimizes the effect of bumps. The rubber member 2 is compressed and subjected to shearing stress by the weight of the fuel and displaces the fluid 8 to indicate the weight on the device 10. If several containers, or containers of extended breadth and length are used, several mountings 2 are provided, the fluid spaces 8 being interconnected by fluid loads with or without throttles 14.
Patent GB-796029-A (GB)
Title: Automatic frequency control in superheterodyne frequency shift telegraphy receivers
IPC: H04L27/16
Filed: 1956-05-11
Abstract: 796,029. Automatic frequency control systems. STANDARD TELEPHONES & CABLES, Ltd. May 11, 1956 [May 14, 1955], No. 14704/56. Class 38 (4). In a superheterodyne frequency shift telegraphy receiver the limiter feeds tuned units I, II tuned just below the mark and space . frequencies respectively and circuits III, IV tuned just above the mark and space frequencies. Circuits I, II have their outputs combined through triode valves to act on a relay R1 and circuits III, IV similarly have this combined output acting oppositely on the relay R1, this operating contacts r<SP>2</SP>2, r32 to apply driving voltage to a motor and contacts r<SP>2</SP>1, r<SP>3</SP>1 controlling the direction of rotation. A capacitor C1 is thus driven to correct the local oscillator tuning and maintain the mark and space I.F. symmetrical about a fixed frequency even if the transmitted frequency shift is symmetrically altered. Adjustment of the tuned circuits may be made at the receiver by a single control for any change in transmitted frequency shift. The system may be applied to Twinplex signalling.
Patent GB-871984-A (GB)
Title: Process for decaffeination of a soluble coffee extract
Inventor: ADLER IRWIN LEROY
IPC: A23F5/22
Filed: 1960-04-27
Abstract: An aqueous extract of roasted coffee is decaffeinated by subjecting it, while flowing in a thin film, to temperatures and pressures sufficient to strip the volatile flavour and aroma constituents therefrom, extracting the caffeine from the extract with a water-immiscible organic solvent, separating the extract and the caffeine-containing solvent and mixing the extract with the recovered volatile flavour and aroma constituents. Preferably, the extract film is agitated while in the form of a falling film distributed about the heated inner surface of a cylindrical evaporating chamber, the agitation being provided by means of radial vanes on a high-speed rotor within the evaporating chamber.  This evaporation is carried out at the lowest possible temperatures.  The present process enables the spraying of the aqueous extract under high pressure through a nozzle into a column of extract without developing a solvent/extract emulsion, the pressure being higher than normally used.  The ratio of caffeine solvent to extract is lower than usual, the extract being decaffeinated by passing once through e.g. methylene chloride. Other organic water-immiscible caffeine solvents, e.g. benzene, a chlorinated hydrocarbon, e.g. dichlorethylene or trichlorethylene or ethylene chloride.  Preferably an aqueous extract is prepared from roasted and ground coffee beans with a soluble coffee solids concentration from 20-35% and is introduced to an evaporator where it flows over the evaporating surface in an agitated thin film subjected to mild elevated temperatures less than 160 DEG  F., preferably less than 140 DEG  F. or even less than 100 DEG  F. and reduced absolute pressures for 30 seconds or less to strip 20-40% by volume of the extract therefrom.  The distillate is cooled to 55 DEG  F. or less and is stored at even lower temperatures.  The stripped extract is decaffeinated by means of any of the aforementioned solvents, e.g. methylene chloride, at 70 DEG  F., preferably by a continuous liquid-liquid extraction but may be done in batches. If the extract has a lower specific gravity than the caffeine solvent, it is introduced as a spray at the bottom of a column and when the extract has the higher specific gravity it is introduced at the top of the column.
Patent GB-118186-A (GB)
Title: Improvements in or relating to the Control of the Temperature in Electrically Heated Apparatus.
Inventor: KIELL JOHN
IPC: H05B1/02
Filed: 1917-10-11
Abstract: 118,186. Kiell, J., and Stow, A. A. Oct. 11, 1917. Thermostats.-An apparatus for regulating the temperature of electrically heated receptacles such as ovens, furnaces, &c. comprises a thermostatic device such as a bow thermostat 11, and, in connexion therewith, for transmitting the movement of the thermostat, a divided rod having a plain portion 13 and an adjustable threaded portion 14 which is carried at one end of a spring-controlled lever 9 pivoted at an intermediate point 17 and carrying a contact 8 at its other end. The contact 7 opposed to the contact 8 is carried by a bracket 6 and may be either a fixed or, as shown, an adjustable contact screwing into the bracket 6 and operated by a pivoted handle 20 adapted to engage a series of graduated notches in a rack 23. The temperature to which the oven &c. is heated is controlled by adjusting the screw 14, and more delicately by the second screw 22 when such is provided.
Patent GB-1537330-A (GB)
Title: Luminescent materials
IPC: C09K11/08
Filed: 1976-04-12
Abstract: 1537330 Luminescent materials and uses thereof PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 April 1976 [15 April 1975] 14769/76 Heading C4S A luminescent material comprises a divalent Eu activated fluorophlogopite of formula Me#Ba and/or Sr, up to 25 mole per cent of Si may be replaced by an equimolar quantity of Ge and 1 # x # 0; 0À25 # (p+q) # 0À01; 0À25 # p # 0 and 0À25 # q # 0. Excitation may be by long or short wave U.V. radiation or electrons. Emission wavelengths and half value widths are given. The phosphors may be employed in luminescent screens in low or high pHg discharge lamps, particular applications being specified. Preparations may be by heating oxides or compounds decomposable to same. Excesses of fluorine and silicate, e.g. SiF 4  or SiO 2  and NH 4 F, may be used. Heating may be above the m.p. but is preferably below, and in several steps. At least the final heating is in a weakly reducing atmosphere to ensure bivalency of the Eu. Detailed examples are included.
Patent GB-1180224-A (GB)
Title: Improvements in and relating to Transducing Systems
Inventor: PENNY RAYMOND WILLIAM
IPC: G01L9/10
Filed: 1966-04-04
Abstract: 1,180,224. Transistor circuit. K.D.G. INSTRUMENTS Ltd. 4 April, 1967 [4 April, 1966], No. 14819/66. Heading H3T. [Also in Division G1] A.C. signals from the split secondary 84, 85, Fig. 5, of a differential transformer 82, 89, 85 are applied to the bases of complementary transistors 95, 96, the signal at the junction of emitter resistors 105, 106, representing the sum of the signals, and that on the collector of 95 representing the difference. The sum signal is amplified in a compound pair of transistors 108, 109, and the output taken from the collector of 108. The collector load of transistor 108 includes a thermistor 114 for compensation of the sum signal for temperature variations of the transformer. Temperature compensation of the difference signal is obtained by feeding back a voltage from the junction of resistors 118, 119, representing that part of the collector 108 variation arising from the thermistor 114 compensation, amplifying the feedback voltage in a long-tailed pair 122, 124, and adding the output thereof to the difference signal on the collector of transistor 95.
Patent GB-806700-A (GB)
Title: Improvements relating to railway signal control systems
IPC: B61L5/16
Filed: 1955-05-24
Abstract: 806,700. Controlling semaphore and like railway signals. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd., and DENNISON, H. F. April 27, 1956 [May 24, 1955], No. 14937/55. Class 105. A railway signal 1 is controlled. from two different locations by two separately operable double-wire operating mechanisms 11, 12 connected to spaced-apart points 7, 8 of a floating lever 6 coupled to a signal-operating mechanism 2 and operable from a normal unoperated position in which the signal is " on " to an operated position in which the signal is " off " only by the operation of both the double-wire mechanisms 11, 12. As shown, turning of the lever 16 in the direction of the arrow operates a lever-operating mechanism 10 to raise the end 8 of lever 6 which is connected by a pin-and-slot connection 5, 4, in a link 3, to the end of the rod 2 so that the pin 5 is moved to the top of the slot 4 without, however, raising the rod 2 and the signal 1 remains " on." When the lever 15 is operated the lever operating mechanism 9 raises the other end 7 of the lever and the pin 5 then lifts the rod 2 to operate the signal to its " off " position. When either lever is returned to its " on " position, lever 6 will assume an inclined position, the pin 5 moving downwardly in the slot 4 permitting the link 3 to move downwards under the action of the counter-weight of the semaphore arm which is restored to its " on " position. In another embodiment for a three-aspect signal, the floating lever 6 is pivotally connected to the rod 2 by the pin 5 so that operation of one mechanism 9 or 10 draws one end of the lever down bringing the signal arm into its 45 degrees position. Operation of the other mechanism 9, 10 brings the other end of the lever 6 down, positioning the lever horizontally with the signal arm 1 now turned through a further angle into the " off " or clear aspect position. The return of either lever 15, 16 to its unoperated position returns the lever 6 into an inclined position with the signal in its 45 degrees position.
Patent GB-1418782-A (GB)
Title: Multiple disc friction clutch
IPC: F16D13/52
Filed: 1973-03-28
Abstract: 1418782 Friction clutch KOVOSVIT NARODNI PODNIK 28 March 1973 [4 July 1972] 14990/73 Heading F2C In a multiple disc friction clutch having a driving member 1 supporting discs 3 and a driven member 13 in the form of a worm-wheel supporting discs 2 the last disc 3 has V-shaped projections (Fig. 2) which complement similar projections on a presser plate 4 mounted on a transverse pin 5 in turn supported by an enlarged portion 7 of a pin 6 axially movably mounted in an axially movable sleeve 9 in a bore of worm-wheel 13. The end of the sleeve 9 supports a journal 10 which via a bearing 11 is acted upon by a lever 12 to move the sleeve 9 and so, via a spring 15, the pin 6 and presser plate 4, so that as the projections on plate 4 and disc 3 abut the clutch is momentarily engaged, and spring 15 allows plate 4 to move to allow the projections to disengage (and the clutch) the length of this engagement depending on the amount of movement of lever 12 (and the proximity of disc 3 to plate 4). When the projections are fully engaged the clutch is fully engaged. This arrangement permits a variable speed of the output member 13 to be obtained from a constant speed of member 1.