baber/WOPTO huggingface dataset:
Patent GB-1457781-A (GB)
Title: Article supply apparatus
IPC: G03G15/00
Filed: 1974-04-03
Abstract: 1457781 Feeding sheets XEROX CORP 3 April 1974 [6 April 1973 (2)] 14834/74 Heading B8R [Also in Division G2] A xerographic copier incorporates means by which a naturally-occurring running-out of the sheet supply, which leads to stopping of the copier and lowering of the copy paper feed tray for replenishment, can be distinguished from an operator-caused lowering of the feed tray. Genuine exhaustion of copy paper leads to automatic lowering of the feed tray at a time which is precisely set within a repetitious cycle, but an operator-caused lowering, brought about to stop the machine during what is ostensibly a long run, cannot be so exactly timed, and leads to detection by control circuitry.
Patent GB-750971-A (GB)
Title: Improvements in or relating to heat pumps
Inventor: GRAY JOHN
IPC: F25B29/00
Filed: 1954-10-15
Abstract: 750,971. Refrigerating; heat pumps. BRENTFORD ELECTRIC, Ltd. Oct. 15, 1954, No. 14840/55. Divided out of 750,986. Drawings to Specification. Class 29. The subject-matter of this Specification is identical with that of Specification 750,986 but the claims differ.
Patent GB-944084-A (GB)
Title: Process for the production of dichlorobutenes and chloroprene
IPC: C07C21/21
Filed: 1962-04-17
Abstract: A mixture of dichlorobutenes convertible by dehydrochlorination into chloroprene is obtained by reacting 1, 2, 3-trichlorobutane with sodium or potassium hydroxide or oxide at 100-250 DEG C., preferably 150-180 DEG C., and preferably in the absence of oxygen. Pyrolysis of the product at 450-650 DEG C. in the absence of a catalyst produces chloroprene.
Patent GB-239943-A (GB)
Title: Improvements relating to driving tumblers for chain dredges
IPC: E02F3/14
Filed: 1924-06-20
Abstract: 239,943. Payne, F. W., and Payne, F. G., (trading as Payne & Son, F. W.). June 20, 1924. Chain wheels.-Polygonal driving-tumblers for chain - dredging machines adapted to drive primarily by reason of their. flat faces, are constructed so that the whole or a portion of each face can be radially adjusted for the purpose of taking up slack caused by wear of the chain. In the form shown, a hexagonal tumbler is provided with radially-adjustable corner-pieces 9 clamped in recesses 5 by a pair of straps each comprising an annular series of brackets 18 adjustably connected by bolts 20 and secured to the tumbler body by screws 21. The tumbler body comprises a casting 1 shrunk or pressed on to a spindle 2 and secured by keys 3. The casting is basically of hexagonal form interrupted by the recesses 5 extending the length of the tumbler at each corner. The corner filling pieces 9 comprise hollow structures of special shape with inclined bases and are seated on series of wedges 13 formed with lugs 14 straddling axial adjusting screws 15 housed in channels 7 formed in the bases of the recesses 5. Externally, the cornerpieces 9 complete at each end, the hexagonal conformation of the tumbler body, but the centre portion 11 of each is extended in the form of a right-angled triangle, these being backed up by raised portions or lips 8 formed in the corresponding centre part of the breadth of the body 1. The clamping brackets 18 are located by raised seatings 6 and end flanges 4 on the body 1 and by shallow recesses 12 in the corner-pieces 9. The side links of the chain ride on the hexagonal periphery provided between the clamping brackets 18 and the raised centre portions 8, 11, the latter forming extended bearing surfaces for the cross parts of the chain links. The adjusting bolts 15 are tensioned between distance collars 16 at one end of the wedges 13 and a flange or collar 17 shrunk or otherwise secured on the spindle 2. The arrangement may be modified by the substitution of flat packing pieces for the wedges 13 or by the provision of means for adjusting the corner-pieces simultaneously.
Patent GB-536796-A (GB)
Title: Improvements in or relating to fluid pressure reducing valve devices
IPC: G05D16/10
Filed: 1940-03-13
Abstract: 536,796. Valves. AUTOMOTIVE PRODUCTS CO., Ltd., and THORNHILL, P.W. March 13, 1940, No. 14961. Divided out of 537,460. [Class 135] A combined pressure regulating and relief valve has the valve member controlling the supply of pressure fluid substantially balanced with respect to the fluid pressure supply and also with respect to the pressure of the fluid in the outlet. The supply valve comprises a tubular member 29 slidably mounted in a bore 26 and provided with a chamfered flange 31 adapted to engage a seat formed on the end of the bore. Below the flange the valve member is formed with a circumferential recess 30 communicating with the supply conduit 17. The relief valve 35 has a coned surface adapted to make knife-edge contact with the outer periphery of the end of the tubular member 29 remote from the flange 31. The valve member 29 is acted upon by a spring 34 and both valves are subject to the action of a spring 40 adjusted by a cam 43 engaging a ball 42 mounted in a movable spring abutment 41. As pressure builds up in the outlet conduit the valve 35 moves to the right against the action of the spring 40, the valve member 29 following the valve 35 until it engages its seating, thereafter the valve 35 lifts away from the valve 29 to connect the conduit 23 to an exhaust passage 21.
Patent GB-364491-A (GB)
Title: Process and apparatus for electrically separating suspended particles from gases
IPC: B03C3/06
Filed: 1931-05-21
Abstract: <PICT:0364491/III/1> <PICT:0364491/III/2> <PICT:0364491/III/3> <PICT:0364491/III/4> <PICT:0364491/III/5> Apparatus for use in the electrical separation of suspended particles from gases comprises perforate collecting electrodes of hollow shape having discharge electrodes arranged centrally therein, and in which the gases entering the space enclosed by the collecting electrode are forced to escape through the perforations in a direction mainly radial, i.e. in the direction of the lines of force of the electrical field.  The gas velocity is maintained approximately equal to the velocity of the particles due to the field, and efficient working can be obtained with a gas velocity of the order of 5 cms. per second.  According to the embodiment shown in Fig. 1, the gas enters a hollow discharge electrode 2, preferably having a serrated edge 11 which prevents, by discharge to the earthed inlet pipe 12, dust passing into the space 13 surrounding the insulator 9.  The gas passes through outlets 3, and then through the collecting electrode 4, which has its inner vertical surface equidistant at all points from the opposing surface of the discharge electrode.  The precipitated dust falls into a hopper 6.  One or more additional perforated collecting electrodes may be placed coaxially over the first one, or a series of discharge electrodes may be placed outside the collecting electrode to deposit any dust which may have passed through the perforations.  These outer discharge electrodes may have a potential lower than the central discharge electrode.  Centrifugal force and, or settlement by impact can be employed by giving the perforations in the collecting electrode the shape of curved nozzles as shown in Fig. 11, or by arranging the nozzles radially and opposed to a surface.  The materials to be used for the electrodes may be, for example, metal screens, porous metals or semiconductors according to the materials treated.  Fibrous material can be used, and may be coated with metal. The electrodes may also be flexible.  Further examples of construction are shown in Figs. 3, 4 and 10.
Patent GB-775800-A (GB)
Title: Improvements in or relating to cooling systems for high power electron discharge tubes
IPC: H01J19/36
Filed: 1955-05-25
Abstract: 775,800. Cooling thermionic valves. TELEFUNKEN GES. May 25, 1955 [June 5, 1954], No. 15070/55. Class 39(1). [Also in Group XIII] In an evaporative cooler the cooled electrode 1, Fig. 1, is provided with a number of cooling channels 7 open at top and bottom but otherwise enclosed and into which circulating cooling liquid is admitted ; the liquid is vapourized in the channels and produces a powerful upward movement of liquid-vapour mixture therein. As shown the electrode is clamped to the top of jacket 10 within which is an inner container 16 for the fluid supplied by inlet 13. The channels are cylindrical bores parallel to the axis of the electrode and the vapour passes away by header 9 outside the container 20 to vapour outlet 12. Metal plates 19 reduce turbulence of water surface 20 under the impact of vapour issuing downwards from the header 9. In a modification the electrode 22, Fig. 4, has a number of tapered ribs 23 closed by an encircling cylinder 24 to form channels 25. The vapour may be taken from the top of the jacket. Fig. 5 (not shown). A complete circulation and levelmaintaining system is described (see Group XIII).
Patent GB-658520-A (GB)
Title: Process for the preparation of aqueous dispersions of cyclized natural or synthetic rubber and of articles therefrom
IPC: C08C19/10
Filed: 1948-06-04
Abstract: Aqueous dispersions of cyclized synthetic rubber are obtained by reacting a cyclizing agent, e.g. hydrofluoric acid and sulphuric acid, with an acid-resistant aqueous synthetic rubber dispersion or a flocculate.  Heat and pressure may be applied. Synthetic rubbers specified are polyisoprene, polydimethylbutadiene, polymethylpentadiene and their copolymers. The latex may be rendered resistant to coagulation with acid by adding casein, saponin, or h moglobin, but is preferably stabilized by adding cetylpyridinium bromide, dialkylaminoethyloleylmethosulphate, Igepon T, dodecylphenylpolyglycol ether, or polyglycol ether.  The cyclized latex may be modified by adding plasticizers, e.g. dibutyl phthalate, stabilizers and fillers and the cyclized latex or the cyclized rubber resulting thereform may be vulcanized with S, sulphides, S2Cl2, ClSO3K or SO2Cl2. Specification 634,879, [Group V], is referred to.ALSO:Aqueous dispersions of cyclized rubber are obtained by reacting a cyclizing agent on an acid-resistant aqueous rubber dispersion or a flocculate.  The term "rubber" includes natural rubber, and polyisoprene, polydimethylbutadiene, polymethylpentadiene and their copolymers.  The latex may be rendered resistant to coagulation with acid by adding casein, saponin, or haemoglobin, but is preferably stabilized by adding cetylpyridinium bromide, dialkylaminoethyloleylmethosulphate, Igepon T, dodecylphenylpolyglycolether, or polyglycol ether.  Specified cyclizing agents are hydro-fluoric acid and sulphuric acid, and heat and pressure may be applied.  The cyclized latex may be modified by adding plasticizers, stabilizers and fillers and the cyclized latex or the cyclized rubber resulting therefrom may be vulcanized with S, sulphides, S2Cl2, ClSO3K or SO2Cl2.  Specification 634,879 is referred to.
Patent GB-457145-A (GB)
Title: Improvements in motor vehicle axles
IPC: B60B35/14
Filed: 1935-05-23
Abstract: 457,145. Motor - vehicle axles and spring suspensions ; driving gearing. TENNANT, W. J., 111, Hatton Garden, London.-(Tatra Works, Ltd. Motor Car & Railway Carriage & Wagon Builders; 200, Kartouzska, Smichov, Prague) May 23, 1935, No. 15099. [Classes 79 (ii) and 79 (iv)] [See also Group XXXII] In order to increase ground clearance the half-axles 6, oscillating in a vertical transverse plane, are arranged above the road wheel axis 1. In the construction shown applied to driving wheels, the half-axle shaft 5 drives the road wheel through gearing 4, 3, and is itself driven by gearing 9 permitting the oscillatory movement of the half-axles. The half-axles 6 are mounted on a gear case 8 in any suitable manner so as to oscillate thereon. The non-driving wheels may be similarly mounted on swinging half-axles or may be mounted on a rigid axle bent upwardly at the middle part.
Patent GB-349289-A (GB)
Title: Improvements in or relating to paper-insulated high tension electric cables
IPC: H01B9/02
Filed: 1930-05-16
Abstract: 349,289. Cables. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. May 16,1930, No. 15121. Convention date, May 28, 1929. Drawings to Specification. [Class 36.] To avoid ionization in an impregnated-paper high-tension cable, layers of semi-conductive material such as paper loaded with graphite or soot are arranged on the conductor or under the lead sheath or at both places. The insulation resistance of the layers may be graded. Reference has been directed by the Comptroller to Specifications 291,871 and 313,590, [both in Class 36, Electricity, Conducting &c.].
Patent GB-576827-A (GB)
Title: Improved means for ventilating aircraft gun turrets
IPC: F41A9/54
Filed: 1940-10-11
Abstract: 576,827. Machine guns. BOULTON PAUL AIRCRAFT, Ltd., and NORTH, J. D. Oct. 11, 1940, Nos. 15155/40 and 6329/41. [Class 92 (ii)] Guns 1 enclosed in turrets on aircraft have the gun gases ventilated by sealing the magazine or belt-fed loading opening x and connecting, in a sealed manner, the conduit 8 for the empty cartridge cases to an air-tight container 10 for the cases from which the gases are evacuated by a pipe 12 leading to the outer air at a point of low air pressure. When the gun is belt-fed, the loading opening, and the conduits for belt links and cartridge cases are all connected in a sealed manner with the gun casing. A fan may be provided in the duct 12. Specifications 413,968 and 520,711 are referred to.
Patent GB-253715-A (GB)
Title: Improvements in and relating to show cases
IPC: A47F3/00
Filed: 1925-06-11
Abstract: 253,715. Parr, W. H. June 11, 1925. Showcases comprise a top member 7 carried by four vertical uprights 2 on a solid base 1, a removable glass front 8, detachable muslin panel fitted side frames 4 and an open back covered by a spring roller muslin blind 12. The side frames each comprises an inner detachable member 4 with a muslin panel 5 with an' aluminium grid 6, and an outer frame 3 detachable from the case. The glass front 8 slides in vertical grooves 9 in the uprights and is covered at the top by a hinged flap 11. The blind roller has a top cover 14 and vertical side flaps 18 hinged to the side frames press the outer edges of the blind against the case.
Patent GB-775489-A (GB)
Title: Device for indicating continuously the true temperature of luminous flames
IPC: G01J5/00
Filed: 1954-05-24
Abstract: 775,489. Measuring flame temperature. INSTITUT DE RECHERCHES DE LA SIDERURGIE. May 24, 1954 [May 29, 1953], No. 15187/54. Class 40 (3). The temperature of a flame is determined by comparing the intensity of the sum of the radiation from the flame and from a lamp shining through the flame with that of a lamp direct. The Specification states that when these intensities are equal the temperature of the lamp equals the temperature of the flame. As shown (Fig. 1) photo-cell 3 receives light both from flame 1 and from lamp 2 through the flame, while cell 4 receives light from lamp 2 direct. The cells are of the barrier layer type and are connected in opposition across resistor 5. The potential difference developed across this resistor is amplified at 6 and results in an alternating voltage, the phase sense of which depends on the direction of unbalance of the two cells. The amplifier output drives a servomotor 7, which adjusts an auto-transformer to brighten the lamp and thus rebalance the circuit. A recording electric potentiometer is provided for registering the temperature. For calibration purposes switch 15 may replace cell 4 by a battery and shunting potentiometer 14, while cell 4 is provided with a shunting adjustable resistor. Mounting.-The photo-cells may be mounted in housings which are water-cooled and in which the cell is mounted in a rotatable disc so that it may be rotated out of the light path to permit adjustment of the potentiometer position. Further arrangements.-The pyrometer may be used for indicating flame temperature on a recorder chart which is synchronously unwound with one measuring the opacity of the flame as disclosed in Specification 776,833. The absorption of the flame may also be determined by a second pyrometer measuring apparent flame temperature, the quotient of this and true temperature being determined by a differential voltmeter or a tangent galvanometer.
Patent GB-167905-A (GB)
Title: Improvements relating to machines for ramming or tamping moulds and the like
IPC: B22C13/10
Filed: 1920-06-05
Abstract: 167,905. Martinez, H., and Kirk, R. H. June 5, 1920. Tamping-machines.-The rammer head a is carried by a hanger b pivoted at c to an arm g which is pivoted horizontally at h to an arm i pivoted vertically at k to a frame m pivotally mounted on a vertical driving-shaft t supported by wall brackets p &c. The rammer head carries a pair of diametrically-disposed tamps 9, either of which can be brought into operative position, the tamps being operated through cranks driven from the shaft t by belt gearing. A pair of balance arms g<1> extend from the arm g and are furnished with adjustable counterweights g<2> ta regulate the tamping. The frame m is supported by a frame w adjustable vertically by a screw z and hand-wheel z<2>. A spring connection 12, Fig. 5, may be interposed between the tamp 11 and ramming-tool 9.
Patent GB-131193-A (GB)
Title: Improvements in Filling Feeler Motions for Looms for Weaving.
IPC: D03D51/34
Filed: 1918-09-20
Abstract: 131,193. British Northrop Loom Co., (Northrop Loom Co.). Sept. 20, 1918. Weft-feeler arrangements. - In a weftfeeler motion for initiating weft-replenishment or effecting loom-stoppage, a feeler member first serves to detect diminution of the weft to a predetermined diameter and is then freed for full rearward movement and movement longitudinally of the shuttle on substantial exhaustion of the weft. A feeler member 15 with a roughened or serrated rear edge 23 is slidably mounted between pairs of guides 17, 18 on a carrier 16, and is normally pressed rearwards by a spring. A spring- controlled arm 25 is pivoted at 24 to the member 15 and a catch 26 on the arm is engaged by a spring-controlled latch 27, pivoted at 34 to the feeler stand 10, to hold the member 15 in a forward position, in which it measures the diameter of the weft on the bobbin until the wall of the shuttle or its box strikes a projection 33 on the arm 25 and releases the catch 26 from the latch 27. The member 15 is thus freed to move into a rearward or full detecting position, and the downturned end 31 of the latch 27 moves from a narrow part 29 of a slot in the member 15 into a broad part 30 to allow lateral movement between pairs of stops 56, 57 of the carrier 16, which is connected to the stand 10 by a link 53 pivoted to the carrier and stand at 54 and 55 respectively. A rod 39 is connected to the carrier and carries a helical spring, which is confined between a collar on the rod and a fixed part and tends to move the carrier to the left when the feeler is in contact with the bobbin, the weft hammer being moved at this time to the rear of an actuator resting on one arm of a bell-crank lever connected to the end of the rod 39. When the weft is sufficiently exhausted to allow the end 23 to move longitudinally along the bobbin, the carrier 16 is moved bodily to the left under the influence of the spring, and the actuator is raised into the path of the weft hammer, as this moves forwards, so that an arm connected to the actuator rocks the usual shaft to initiate replenishment.
Patent GB-278314-A (GB)
Title: Improvements in or relating to electrically wound clocks
IPC: G04C1/06
Filed: 1927-06-08
Abstract: 278,314. Sangamo Electric Co., (Assignees of Long, C. E. de). Oct. 4, 1926, [Convention date]. Winding - apparatus, elcctric. - In an electrically wound clock the electric motor is controlled by a brake mechanism which is actuated by the winding and unwinding of the spring. The motor 15, preferably of the small induction type, winds up the spring 35 through gearing 21 - - 25, the latter being connected by reducing gearing to the arbor 34 to which is attached the inner end of the spring 35. A bush 44, slidable on arbor 34, is slotted at 45 to coact with a pin 46 rigid with the arbor 34 and has screw-threaded engagement with a boss 37 on the barrel 36 to which the outer end of the spring is attached. Co-operating also with a flange 47 of the bush 44 is the forked end 48<1> of a lever 48 pivoted at 49 and carrying an adjustable braking member 53 which coacts with a friction surface 55 attached to the wheel 23. As the motor winds up the spring the bush 44 passes into the boss 37 until the lever 48 is moved enough for the member 53 to brake the motor. Subsequently as the spring unwinds, the barrel 36 and boss 37 revolve and cause the bush 44 to be returned outwards, thus releasing the brake. Within limits the spring is thus maintained at a constant tension. The Specification as open to inspection under Sect. 91 (3) (a) describes also the construction shown in Fig. 5 (Cancelled), in which a wheel 33 on the arbor 34 meshes with a broad pinion 59 carried by a sleeve 62 having a screw-threaded engagement with a counter-shaft 57 geared to the barrel pinion 39. The sleeve 62 moves axially of the shaft 57 and actuates the brake lever 48 as in the first construction. This subject-matter does not appear in the Specification as accepted.
Patent GB-986977-A (GB)
Title: Transistorised two voice-frequency signal receiver
IPC: H04B1/28
Filed: 1962-04-19
Abstract: 986,977. Voice-frequency receivers. BUDAVOX BUDAPESTI HIBADASTECHNIKAI VALLALAT. April 19, 1962 [April 21, 1961], No. 15354/62. Heading H4R. In a transistorized 2-frequency receiver in which the signal frequencies pass via band-pass filters to transistors T 3 , T 4 , a protection circuit against disturbing currents comprises a lowpass filter Sz and transistor T 5  controlling potentiometers P 1 , P 2  which respectively back-bias the transistors T 3 , T 4 . The pre-amplifier T 1 , T 2  is such that it stabilizes the input level provided it is above a threshold value.
Patent GB-240235-A (GB)
Title: Improvements in safety devices for aircraft
IPC: B64C9/32
Filed: 1924-06-26
Abstract: 240,235. Ajello, G. June 26, 1924. Planes, construction of; stopping-way; steering. -Wings and fin surfaces of aircraft, particularly aeroplanes, are provided with braking and lifting surfaces 1, 2 normally forming parts of the upper and lower surfaces of the wing or fin, the upper surface 1 being hinged at its rear edge and the lower surface 2 at its front edge and the two being movable simultaneously by a two-armed lever 4 mounted on a shaft 7 to open a passage through the wing or fin. The ends of the lever 4 have sliding connections with the surfaces 1, 2 which remain parallel to one another in all positions. The surfaces may be hinged about transverse axes for braking or elevating, or they may be hinged about inclined or longitudinal axes for checking side-slip. An engine-cooling radiator may be arranged within the air passage opened through the wing. Specification 168,436 is referred to.
Patent GB-1385763-A (GB)
Title: Generating multiple colour documents
IPC: B41M5/035
Filed: 1972-04-04
Abstract: 1385763 Duplicating in colour KAYEX COLOR MAGIC Inc 4 April 1972 [5 April 1971] 15432/72 Heading B6C Duplicating in two or more colours is carried out by imaging a master sheet 11 successively with the colours, by pressure or impact on appropriately coated sheets, then placing the master in face to face contact with a plurality of copy sheets 17 and transferring part of the multicolour image each time by application of heat. The master may be imaged in reverse by drawing or typing on a surface remote from a coated sheet, so that a reversed image of ink forms on its underside from each of a succession of coated sheets. The master and the copy sheets are then passed face to face between rollers 18 and 19, heat being applied through the roller 18, e.g. by conduction. Alternatively infra-red radiation may be applied to the master, e.g. to markings on the side remote from the reversed image, as it and a copy sheet pass through rollers. Lists of ink materials which can be used are given. They may be held in rupturable microcapsules.