baber/WOPTO huggingface dataset:
Patent GB-940473-A (GB)
Title: Improvements in or relating to data reading apparatus
Inventor: THOMAS ROY
IPC: G06K7/016
Filed: 1961-09-11
Abstract: 940,473. Statistical apparatus. LEO COMPUTERS Ltd. Sept. 11, 1962 [Sept. 11, 1961], No.32497/61. Heading G4M. In a system for reading a record,e.g. a punched tape, having a control mark associated with each set of data marks, the sensing of a control mark produces a train of pulses having a high repetition frequency, these pulses being used to provide a succession of short intervals during which data may be gated from the data sensers to a register, thereby ensuring correct reading of the data even if the data marks are incorrectly aligned. The control mark reader LR feeds two discriminators A, B the latter having a lower threshold level than A and controlling gate G2 through an inverter P1. When a control mark is sensed, B responds first and gate G2 is closed, after which A responds and G1 is opened to allow pulses from oscillator PG to open data gates connecting data readers DR with the register for a succession of short intervals. During the trailing edge of the control mark pulse,first A then B switch off so that gate G1 is closed then G2 is opened, the first pulse of the train from G2 setting bi-stable circuit FFB and producing a read-out pulse at ROC for the register. A counter RC may register the number of lines of data read. When the next control mark is sensed, the first pulse of the train from G1 resets FFB.
Patent GB-605282-A (GB)
Title: Improvements in or relating to aluminium silicon alloys
IPC: C22C21/02
Filed: 1945-12-01
Abstract: An aluminium-silicon alloy has the following composition:- Si 3.0-13.0 per cent, Mg 0.1-2.0 per cent, Mn 0.1-1.5 per cent, Cr 0.05-1.5 per cent, Zn 0.1-1.5 per cent, Cu 0.05-4.0 per cent, Fe-1.3 per cent, together with one or more of the following grain refining elements: Ti 0.05-0.3 per cent, Nb 0.01-0.3 per cent, Zr 0.01-0.3 per cent, B 0.002-0.5 per cent, W 0.01-0.3 per cent, Mo 0.01-0.3 per cent, V 0.05-0.3 per cent, in total between 0.002 and 0.5 per cent, the remainder of the alloy being Al.  The alloy may also include up to 1.0 per cent of Sn.
Patent GB-510304-A (GB)
Title: Improvements in servo-assisted control systems
IPC: B63H25/28
Filed: 1938-11-09
Abstract: 510,304. Fluid-pressure servomotor-control systems. SPLADIS SOC. POUR L'APPLICATION D'INVENTIONS SCIENTIFIQUES, and PELTERIE, R. ESNAULT-. Nov. 9, 1938, No. 32572. Addition to 510,300. [Class 135] In a servo-assisted control mechanism of the kind described in the parent Specification comprising two valves 15, Fig. 2, controlling the pressure of the fluid for actuating the servomotor in its two directions of movement, the valve members 15 are provided with hollow cylindrical extensions 18 so that they are substantially balanced for the pressures existing on their high-pressure sides and the mechanical effort required for actuating them is considerally reduced. The valves are actuated by the reaction from the casing 41 of an epicyclic gear arranged between the operating lever 1, for example, the joystick of an aircraft, and a follow-up lever 42 .connected to the power cylinders 49-52 for operating the rudder 46 as described in the parent Specification. The power cylinders 49-52 are preferably arranged close to the member 46 to be controlled and the pressure medium supplied through conduits 61, 62 so as to obviate the transmission of large mechanical forces, the follow-up movement being taken back to the control device by cables 43, 44.
Patent GB-459402-A (GB)
Title: Improvements in or relating to electric discharge lamps
IPC: H01J61/10
Filed: 1935-11-25
Abstract: 459,402. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent - Treuhand - Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) Nov. 25, 1935, No. 32652. [Class 39 (i)] In an electric discharge lamp wherein an electrode 7 is inserted through the side of the envelope 1 and near the closed end 2, a shield 10 surrounds the electrode and has its inner end bent towards the closed end, so that when a number of lamps are used end to end in a sign, the discharge appears continuous; the shield causes the discharge to pass to the closed end. A layer 11 of luminescent material may be provided on the envelope. The shield may be of metal, porcelain or opal glass. The envelope may be straight or curved.
Patent GB-707443-A (GB)
Title: Improvements in or relating to hot-gas reciprocating engines and refrigerating engines or heat pumps operating on the reversed hot-gas engine principle
IPC: F02G1/043
Filed: 1949-12-21
Abstract: 707,443. Refrigerating. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 21, 1949 [Dec. 24, 1948], No. 32730/49. Class 29 [Also in Group XXVII] In a refrigerating engine or heat pump in which similar working spaces are provided on each side of each. reciprocating member communication between a hot space and the associated cold space is effected by one or more ducts or channels having stationary boundary walls. In Fig. 1, a hot space 4 communicates with a cold space 5 by way of a heater 8 regenerator 9 and cooler 10 while a second hot space 6 communicates with a cold space 7 through a heater 11 regenerator 12 and cooler 13. The heaters are heated by supplying a heating medium to an annular space 16 and the coolers are cooled by supplying a cooling medium to an annular space 17. The pistons are not fitted with piston rings. Fig. 5 shows a modification comprising bellows 30, 31 instead of pistons, a hot space 6 communicating with a cold space 7 by way of a heater 32 regenerator 33 and cooler 34 located between the bellows. The hot space 4 communicates with the cold space 5 in a manner similar to that of Fig. 1. Figs. 3 and 4 show a refrigerating engine comprising members 1, 2 connected to the walls of cylinders in which they are mounted by annular rubber rings 18, 19. As shown in Fig. 4, the freezers associated respectively with the freezing spaces 4 and 6 are comprised by spaces 21, 26. It is stated that the annular space comprising the freezers may be divided into two parts only. The centre lines of the reciprocating members may be inclined to one another. Each piston rod may carry a plurality of pistons.
Patent GB-1248155-A (GB)
Title: Self-tightening parallel-jaw clamps
Inventor: WATTS LESLIE
IPC: B25H1/00
Filed: 1969-06-30
Abstract: 1,248,155. Clamps. L. WATTS. 3 June, 1970 [30 June, 1969], No. 32817/69. Heading E2B.  A self tightening parallel jaw clamp comprises two uprights 3 rigidly mounted and spaced apart on an elongated base, a pair of flat faced clamping jaws 14 between the uprights and each coupled to one of the uprights by pairs of links 25, 26 and on the lower end of each jaw an inwardly extending projecting ledge 16 whereby a rigid parallel faced member when placed between the jaws and forced downwardly against the projections is gripped by the jaws moving towards one another as they are pressed downwards by the pressure on the projections. The pairs of links 25 are extended and joined at one end by a transverse bar 28 to provide a counterweight device normally to hold the jaws_apart. The uprights 3 are slidable on a pair of spaced bars and are secured by screws 12 and 13. Alternatively the uprights are slidable in a channel shaped base and secured by bolts passing through selected pairs of a series of pairs of holes in the base, and a hole or a selected hole in each upright. The jaws may be biased apart by a spring connected either between each jaw and upright or between the base and links. In order to clamp a thin member the projections are provided with interengageable prongs and the recesses between the prongs may extend into or through the uprights.
Patent GB-969920-A (GB)
Title: Improvements in and relating to electrical circuits controlled by electrical pulses
IPC: H03K17/58
Filed: 1961-09-14
Abstract: 969,920. Digital data storage. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 14,1961 [Nov. 2,1960], No. 32974/61. Heading G4A. [Also in Division H3]  A storage element is selected by the coincidence of pulses transmitted from the ends of a  transmission line. Only one pulse generator is used and coincidence is effected between a first pulse, reflected from an open- or short-circuited termination of the line, and a second pulse, timed to coincide with the first at the required element. The storage elements may be Esaki diodes (Fig. 5) connected across the transmission line, such as 19b, which has an open-circuited termination. The diodes are biased by voltage +E to the bistable mode of operation. The two cordinates for selec-. tion of a particular diode are driver and time of second pulse. If the storage elements are magnetic cores 41 the line is short circuited to give a reversal of voltage on reflection of the first pulse. The resultant double voltage at coincidence of the first pulse switches a magnetic core connected in series with the line at the point of coincidence.
Patent GB-1514537-A (GB)
Title: Mounting magnifying lenses
IPC: G02B25/00
Filed: 1976-11-08
Abstract: 1514537 Finger ring F AUSTIN 8 Nov 1976 [7 Aug 1975] 32980/75 Heading A3H A plastics or glass magnifying lens 2 is hingedly or otherwise adjustably mounted on a finger ring 5.
Patent GB-540167-A (GB)
Title: Improvement in insoluble polymers and processes of producing same
IPC: C08K5/00
Filed: 1939-12-28
Abstract: 540,167. Synthetic resinous compositions. AMERICAN CYANAMID CO. Dec. 28, 1939, No. 32999. Convention date, Dec. 30, 1938. [Class 2 (iii)] In process of producing resinous compositions comprising a polyhydric alcohol polyester of an olefine a, #-dicarboxylic acid and a miscible polymerizable α-substituted ethylene compound containing the group CH 2  =C<, premature polymerization of the composition is prevented by the incorporation of a phenol, particularly a di- or polyhydroxy phenol, an aromatic amine, particularly symmetrical a, #-naphthyl p-phenylene diamine, tannin, laevo ascorbic acid, benzaldehyde or α-naphthol. Polymerization of the compositions to infusible insoluble resins is effected by heat and/or lighc, with or without pressure, in the presence of a polymerization catalyst ; when heat is employed, the composition is heated to a temperature of 70‹-100‹C., so that it becomes on the verge of gelation, before the addition of the catalyst, and, to prevent a too rapid rise in viscosity, the ethylene compound may be added in stages. In examples, (1) a mixture of diethylene glycol maleate resin is heated with vinyl acetate, and resorcinol, symmetrical α, #-naphthyl p-phenylene diamine, or hydroquinone is either incorporated in the resin during its preparation or is added to the mixture before or after heating ; (2) and (5) a mixture of ethylene glycol maleate resin, vinyl acetate and benzoyl peroxide is added to tannic acid and allowed to stand at room temperature or is heated with tannic acid, hydroquinone or α-naphthol; (3) and (4) a mixture of propylene glycol maleate vinyl acetate and benzoyl peroxide is heated with laevo ascorbic acid or benzaldehyde. Specifications 497,175, 540,168 and 540,169 are referred to. According to the Specification as open to inspection under Sect. 91, (1) sulphur compounds may be used to prevent premature polymerization, (2) when styrene is an ingredient of the composition, the resin is derived from a glycol which if straight-chained contains at least 8 carbon atoms and if branch-chained at least 5 carbon atoms ; examples of such resins are specified; (3) examples are given of compositions in which the ethylene compound is styrene or vinyl acetate, some of which compositions do not contain an inhibitor. This subject-matter does not appear in the Specification as accepted.
Patent GB-617853-A (GB)
Title: Improvements in or relating to beaters or agitators
IPC: A47J43/10
Filed: 1946-11-06
Abstract: 617,853. Mixing appliances. HANSEN, H., and HANSEN, F. Nov. 6, 1946, No. 33021. Convention date, Aug. 26, 1944. [Class 86] An egg, cream, &c. beater driven by gear wheels has two oppositely rotating and inter-engaging beater members, the shafts of which are supported in a detachable plate member. The transverse part 6 of the frame has fixed thereto a plate 20 having downwardly bent side branches 35 projecting beyond the part 6 and each having at its free end a lug 22 and a projecting edge 21. The detachable plate 23 has a handle 24 and, on the underside, bearings 25, 26 for the shafts 27, 28 of the beater members which carry on their upper ends, gear wheels 29, 30 meshing with one another and with the driving gear 9. The inner end of the plate 23 is inserted under the edge 21 of the plate 20, recesses 22<1> on the sides of the plate 23 engaging with the lugs 22. An adjustable clamping member 10 is provided for fixing the apparatus to a table.
Patent GB-503807-A (GB)
Title: Improvements in or relating to landing gear for aircraft
IPC: B64C25/50
Filed: 1937-11-30
Abstract: 503,807. Shook-absorbers. RIBBESFORD CO., Ltd., and THORNHILL, P. W. Nov. 30, 1937, Nos. 33125 /37 and 8968 /38. [Class 108 (iii)] [Also in Group. XXXIII] An aircraft shock-absorber comprises tubular members relatively movable both longitudinally for shockabsorbing and rotationally for castoring, in which the rotary movement away from normal against the action of resilient centring means is damped by restriction of the flow of a liquid. Fig. 1 shows the general arrangement, telescopic movement of the plunger tube 13 in cylinder 10 causing a further compression of the compressed air in chamber 26 by the floating piston 22, and liquid from chamber 23 passing to chambers 24, 25 through a non-return valve in the piston-head 14 of tube 13. The non- return valve, 29, Fig. 2, closes however during rebound, permitting liquid to pass only through restricted orifices 32. The resilient means urging the wheel 16 to a central angular position comprise a tube 19 engaged by the piston-head 14 for rotary, but not for longitudinal, movement therewith. The tube 19 carries a cam 37, Fig. 4, engaging a cam 40 fixed by a hollow stem 41 to the stationary tube 10, so that a swivelling movement of the wheel away from normal lifts tube 19 against the restoring action of a spring 43. At the same time the movement away from normal is damped by the expulsion of liquid by the stationary cam 40 acting as a piston, from within the tube 19 through passages 49, 52, 54 (passage 52 being adjustable by a needle valve 50) to chamber 23. The return of the wheel to central angular position is undamped, liquid entering the extending tube 19 through a non-return valve 56. The cam elements 37, 40 are urged together by the fluid pressure as well as by the spring 43 ; or the spring may be omitted, the fluid pressure acting alone. In Fig. 5 (not shown) the tube 19 only rotates, the cam 40 depressing a piston within it to expel liquid through a side hole in the tube. In Fig. 6 also, the tube 19 only rotates, on swivelling rotation of the piston-head 14, rotating also, by splines 87, a piston 84 slidable within a cup 76 carried by tube 19. A cam 82 on the piston 84 coacts, through balls 86, with a fixed cam 81, depressing the piston and expelling liquid in the cup 76 through a small hole 94, damping the movement away from the central position. During the restoring swivellmg movement produced by the spring 85 and the cams, the non-return valve 79 opens. In this form, extension of the shockabsorber causes liquid from chamber 24 to be expelled relatively slowly through a hole 74, since holes 73 are closed by a non-return valve 71. It is stated that the return swivelling movement may also be damped if desired.
Patent GB-1091111-A (GB)
Title: Method and apparatus for cleaning cotton
IPC: D01G9/00
Filed: 1965-08-03
Abstract: 1,091,111. Clearing cotton; drafting. JEFFERSON MILLS Inc. Aug. 3, 1965 [April 19, 1965], No. 33141/65. Headings D1D, D1F and D1N. Cotton fibres are cleared by being formed into a web which is stretched and simultaneously vibrated, the debris and short fibres thus displaced being sucked away. In Fig. 1 (not shown) a web (25) from a carding engine is passed through a drawing device (18), condensed, calendered and stored at (21). The drawing device comprises, see Fig. 2, three pairs of toothed rollers, e.g. 22, 23. Each pair of rollers is intergeared (e.g. by forming a layer of chromium steel on the end portions of the toothed rollers) such that their teeth, while intermeshing, do not touch. As well as being drafted between successive roller pairs the web is drafted between the rollers of one pair due to the deepening engagement of the teeth as the web passes therebetween. The web is vibrated at the entry and exit points of the rollers by the alternate engagement by oppositely moving teeth. If the rollers of successive pairs have the same angular velocity (the diameter of the rollers of successive pairs being increased to produce the draft effect) it can be arranged that the length of web between roller pairs vibrates parallel to itself. A suction device 17 (Fig. 1) removes waste.
Patent GB-618650-A (GB)
Title: Applicator for containers for cleaning fluid
IPC: B65D47/42
Filed: 1946-11-07
Abstract: 618,650. Liquid applicators. PETRIE, W. K. Nov. 7, 1946, No. 33178. [Class 19] An applicator for applying cleaning liquids to garments and other articles comprises a stopper 2 of permeable material, for example, compressed cotton wool, the operative end-face of which presents an inclined surface intersected by cross cuts 3 and the other end-face of which is formed with a blind hole 4, the bottom of the cross cuts being spaced from the blind end of the hole. In one form, Fig. 2, the stopper has a shoulder 5 resting against the neck 1 of the container while in another, Fig. 4, the stopper rests on an internal flange 6 projecting from the inner wall of the neck. The stopper may be cylindrical or coned.
Patent GB-1504898-A (GB)
Title: Optical beam splitter
IPC: G02B5/12
Filed: 1975-08-08
Abstract: 1504898 Spectrometer beam splitting and recombining system PERKIN-ELMER CORP 8 Aug 1975 [16 Sept 1974] 33226/75 Heading G1A [Also in Division G2] In an optical system wherein an incoming beam is split into sample and reference beams and the divided beams subsequently recombined and passed to an analyser, the splitter and recombiner both comprise alternating stripes of transmissive and reflective material, the stripes of the splitter being arranged to be orthoganal to those of the recombiner. The invention is of particular use for double beam spectrometric systems wherein the sample beam passes through a flame, it being stated that the schlieren interference due to the flame inhomogeniety cannot cause noise consequent on misregistry of the sample beam at the recombiner. The elements may be prepared by deposition of reflective stripes on a transparent substrate, the end most stripes being wide so that the aperture of the combined splitter/recombiner falls well within the aperture of the instrument. A spectrometer Fig. 1 has a splitter 18 with stripes perpendicular to the paper, and a recombiner 26 with stripes parallel to the paper. The reflection/transmission ratio of the recombiner is higher than that of the splitter. The elements comprise aluminium coated on to fused silica.
Patent GB-446765-A (GB)
Title: Improved fluorescent materials and fluorescent screens made therewith
IPC: C09K11/56
Filed: 1934-11-19
Abstract: 446,765. Fluorescent screens. CHEMISCHE FABRIK VON HEYDEN AKT.- GES., Radebeul, Dresden, Germany. Nov. 19, 1934, No. 33251. Convention date, Nov. 18, 1933. [Class 98 (i)] Fluorescent materials such as zinc sulphide and zinc cadmium sulphide, which blacken on exposure to daylight, are treated to coat each individual particle with a thin, protective, coloured layer by suspending the particles in a dilute solution of a film-forming material containing a protective colouring agent, filtering, and drying the residual. coated particles. As colouring agents, dyestuffs are used which are found to be effective for preventing blackening of the particular fluorescent materials employed. In examples, particles of zinc cadmium sulphide are coated by suspension in a dilute-solution of water-glass containing Auramine, or Auramine and Brilliant Green. The screen layer is prepared in known manner from the coated particles mixed with a binder such as a cellulose ester. Reference is made to known fluorescent layers in which the fluorescent material is itself coloured or is mixed with a binder to which colouring matter has been added ; and also to the addition of cobalt to lithopones.
Patent GB-506744-A (GB)
Title: Improvements in and relating to bolts, also applicable to nails and the like
IPC: F16B35/04
Filed: 1937-12-02
Abstract: 506,744. Bolts. WOLLASTON, H. J. BUCHANAN-. Dec. 2, 1937, Nos. 33282/37 and 26535/38. [Class 89 (i)] A headless bolt provided with a screw thread for a nut at one end is constructed for ready attachment and detachment of a washer at the other end. The washer may be attached for example to the floor boards of motor cars. As shown, a bolt or stud 1, Fig. 1, has a pair of flats at the end a and a washer 3, which may be fastened to floor boards or the like, has an aperture similarly shaped as shown in Fig. 2, so as to be readily slipped over the end of the bolt as far as the end of the flats. In the lower part of the flats, grooves are provided by cutting the bolt shank thereat to the form f shown in Fig. 2. This form comprises straight and circular portions. Relative movement of the washer and bolt may thus be obtained through a right-angle only from locking to unlocking position. In modifications, the washer may have an elliptical aperture to correspond with the end of the bolt, which is similarly shaped, grooves being cut leaving the corresponding part of the shank elliptical in form. More than one groove may be cut in the bolt. Studs or turned over parts of the washer may be employed to limit rotation of the washer or nut.
Patent GB-463208-A (GB)
Title: Improved pumping unit
IPC: F04D9/04
Filed: 1935-12-02
Abstract: 463,208. Centrifugal pumps. DRYSDALE & CO., Ltd., and DRYSDALE, J. W. W. Dec. 2, 1935, No. 33303. [Class 110 (i)] In a machine for pumping liquid and air or gas separately and simultaneously and comprising a centrifugal impeller k and a liquid-ring rotor l mounted on the same shaft m and within a common split casing a, b as in Specification 448,450, the rotor l is fed from a stand-pipe q within an airseparator p mounted on the casing b and leading to the impeller k, the lower half a of the casing carrying the mixture inlet c, the air outlet d and water outlet e. A partition f separates the inlet g of the impeller k from the inlet i of the rotor l. A vacuum breaker may be fitted at p<1> to the top of the separator p. The machine is applicable to suction filters and to paper-making machines.
Patent GB-1167395-A (GB)
Title: Fabric Softener
IPC: D06M13/46
Filed: 1967-07-20
Abstract: 1,167,395. Quaternary ammonium compounds. ARMOUR & CO. 20 July, 1967 [20 July, 1966], No. 33393/67. Heading C2C. [Also in Division D1] The invention comprises aqueous solutions of compounds of formula wherein R 1  is Me, Et, Pr or is the same as the R 2 -containing N-attached group shown in the formula, R 2  is Ph (possibly substituted by 1 or 2 Me, Ho or MeO groups), R 3  and R 4  are each Me, Et, Pr, H(OCH 2 CH 2 ) z  or H(OCHMeCH 2 ) z , A is an anion, n is 1 or 2, x and y are each 0-19 and x+y is 5-19, and z is 1-40, the total z in any compound being no more than 60.