baber/WOPTO huggingface dataset:
Patent GB-540108-A (GB)
Title: Improvements in or relating to the stretching of textile filaments or threads
IPC: D02J1/22
Filed: 1940-04-03
Abstract: 540,108. Filaments or threads, stretching. ALFORD, M. W., JACKSON, T., and HILL, F. B. April 3, 1940, No. 5992. [Class 2 (ii)] Materials in the form of threads or filaments are stretched while they are running through a gaseous softening medium under pressure ; the ratio of the output and input speeds is maintained constant and the tension of the material varies the pressure of the softening medium so that the softening effect varies with the tension. This control may be applied to apparatus of the kind described in Specifications 537,962 and 538,193, in which the threads 1 are led through the comb 5 and the nip rollers 8 situated in the feed chamber 6 supplied with compressed air through the pipe 13. They then pass through the stretching chamber 9 supplied with steam through the pipe 12. The general arrangement of valves and pipes, and of the controller 33 is the same as that described in Specification 538,193 ; it ensures that the ratio of pressures in the chambers 6, 9 is a constant ratio and that pressure variations in the chamber 6 are controlled by the pressure in the chamber 9. On their way to the compensating device 14, 15, 16 and the collecting apparatus described in the above-mentioned Specifications the threads pass a tension-sensitive device 20 but are not threaded through it until, at a late stage in the starting operations they are disconnected from the compensating device. The tension sensitive device 20 is shown in Figs. 3, 4 and consists of movable guide bars 102, 103 connected by a bar 104 pivoted on an extension of the fixed arm 101. Weights 108 are adjustably mounted on screws 107 attached to the pivoted members. When the threads are removed from the compensating device they are passed under the bar 101, over the bar 102 and under the bar 103 so that the tension in the thread opposes the tendency of the out-ofbalance weights to produce rotation of the parts 102, 103. A disturbance of balance operates a needle valve 109 controlling the flow of compressed air through the pipes 112, 113 so that if the tension increases the valve is opened and compressed air flows through the pipes to the chamber 117 thus depressing the diaphragm and rotating the wheel 100. This rotates the spindle 94 and alters the setting of the controller. An additional tension-sensitive device similar to that described may be employed in place of the compensating device 14, 15, 16 and another may be used to control the rate of rotation of the take-up bobbins 31 to compensate for increasing diameter of the winding. Specification 443,707 also is referred to.
Patent GB-1103118-A (GB)
Title: Improvements in or relating to fluid actuated magnetic switches
IPC: H01H36/00
Filed: 1964-02-13
Abstract: 1,103,118. Magnetic switches. W. DOUGLASS, and J. A. OLDING. 12 May, 1965 [13 Feb., 1964], No. 6007/64. Heading HlN. Sealed magnetic contact devices in cavities or on the outer surface of a cylinder are operated by a magnet on a double-acting piston in the cylinder. The piston is moved by fluid pressure differential. The contact units may be as described in Specification 1,103,116.
Patent GB-1125812-A (GB)
Title: Improvements in or relating to racks for drying clothes or the like
IPC: D06F57/12
Filed: 1966-02-11
Abstract: 1,125,812. Clothes airers. J. KERSHAW and R. RAWCLIFFE. 9 Feb., 1967 [11 Feb., 1966], No. 6050/66. Heading A4U. [Also in Division E2] A clothes airer for use near the ceiling of a room is stored, when out of use, in a plastics-coated metal housing 8 mounted by brackets 9 on ceiling joists. Doors 10, hinged to the brackets have projecting lever members 14 which are engaged by the airer in its upward movement to close the doors which open under gravity as the airer is lowered. The airer, consisting of telescoping rods 1 supported by transverse members 2, is suspended by a cord 24 which is secured at its end to the transverse members, passes over a pulley 23, and is wound on the smaller drum of a winch 15 passing through an aperture flange thereon so that the airer can be levelled. A second nylon cord 25 for raising and lowering the airer passes from the larger drum 17 of the winch, being secured to a flange, over a pulley on the ceiling and downward for hand manipulation, a cord grip device being provided which has a channel for passage of the cord and a pivoted spring-loaded member 38 with a cam face which grips the cord under hand pressure. In a modification the doors are hinged to the open end of a wooden housing.
Patent GB-886105-A (GB)
Title: Improvements in or relating to endless chain conveyors
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65G23/00
Filed: 1958-02-26
Abstract: 886,105. Chain gearing. FISHER & LUDLOW Ltd. Feb. 19, 1959 [Feb. 26, 1958], No. 6154/58. Class 80 (1). [Also in Group XXX] A ring 21, provided with sprocket teeth 22 for driving an endless chain conveyer (see Group XXX), is supported on rollers 24 and is provided with gear teeth 31 for engagement with driving pinions 30 mounted on the axis of one of the supporting rollers 24. Specification 665,887 is referred to.
Patent GB-286305-A (GB)
Title: Method and means for impregnating any articles with varnishes of synthetic resins
IPC: B29C35/04
Filed: 1928-02-28
Abstract: 286,305. Manufacture de Machines Auxiliaires pour l'ElectricitÚ et l'Industrie Soc. Anon. March 3,1927, [Convention date]. Waterproofing; proofing processes and compositions.-In the impregnation of articles with phenol-aldehyde condensation products, the operations of drying and polymerization are carried out in a heated stove, and the operations of impregnation and evaporation of solvents are effected in a stove through which is passed a current of air or gas supplied by a fan and heated in a heater or cooled in a condenser as required. The apparatus comprises a stove or autoclave 1, heated by any suitable means, and a second stove 2 through which a current of air can be passed by means of a fan 4, the air being heated by a heater 3. A tank 5 for the solution is connected to the stove 2 by a pipe 6. A pump 8 is provided, by means of which vacuum or pressure may be produced in the stoves 1, 2, to which the pump is connected by pipes 9. A condenser 12 serves to recover the solvent or to cool the air current, and may be cut out of the air circuit by means of a bye-pass pipe 13. The articles to be impregnated are dried in the stove 1, with or without the application of a vacuum, and are then placed in the stove 2 and impregnated, either at atmospheric pressure, in a vacuum, or under pressure. The solution is then returned to the tank 5, and time alowed for draining. Air is then circulated through the stove 2 by means of the fan 4, the current passing through the heater 3, the stove 2, the condenser 12, and back to the fan. The solvent is evaporated from the articles in the stove 2 and condensed in the condenser. The speed of the air current is controlled so as to facilitate condensation, and the last traces of solvent are removed by cutting the heater and fan out of the circuit and creating a vacuum in the stove. The articles are then returned to the stove 1 and heated to cause polymerization. The stove 2 may be cooled for the following impregnation by air passed through the condenser. Both stoves are in use as the same time; while polymeriaztion is effected in the stove 1, impregnation takes place in the stove 2, and while the stove 1 is used for drying, evaporation takes place in the stove 2. Specification 280,386 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states also that the process may be carried out in a single stove provided with heating means. This subject-matter does not appear in the Specification as accepted.
Patent GB-249661-A (GB)
Title: Improvements in or relating to high tension or multiple-cell electric batteries
IPC: H01M6/42
Filed: 1925-03-07
Abstract: 249,661. Ball, r. March 7, 1925. Cells; connections. -A high tension battery of the LeclanchÚ type comprises a case a divided by partitions c into a number of compartments, the walls of the casing and partitions extending above the cell covers e to prevent creeping. The upper edges of the partitions and casing may be grooved, or ribbed. The cells are connected by copper strips h which are curved to clip on to the electrodes, the centre parts being arched as shown at h in Fig. 1.
Patent GB-1243934-A (GB)
Title: Programmed timing system
Inventor: DURIS RUDOLPH MARTIN
IPC: G04C23/26
Filed: 1970-02-10
Abstract: 1,243,934. Programmed timing system for control of apparatus. EDWARDS CO. Inc. Feb. 10, 1970 [Feb.10, 1969], No. 6320/70. Heading G3T. A programmed timing system for selectively energizing a plurality of control circuits, e.g. to devices 108, 109, Fig. 1, and comprising a clock 100 driving day, hour and minute stepping switches 101, 102, 103 which have output circuits that are selectively energized as time progresses (e.g. minute switch 101 has an output circuit for each minute), the outputs of each switch are connected to matrices of terminal arrays 106. Energization of the control circuits for devices 108, 109 is enabled by AND gates 110, 111. The programme is pre-set by means of detachable leads between the matrices and gates. If the output circuits are to be programmed to operate at different times during a week, certain of the input leads to the AND gates are connected through OR gates 112-115 to the matrices. Thus as shown, Fig. 1, AND gates 110, 111 both have a first input on days Monday, Tuesday, Wednesday. Gate 111 has a second input via a line 119 for the hour 4 p. m. anda third input via line 120 from the OR gate 115 which is enabled at minute No. 1 and minute No.3. Thus AND gate 111 is enabled on Monday, Tuesday, Wednesday, during the minutes 1 and 3 after 4 p. m. Alternatively the minute switches may be a self contained synchronous motor driven minutes scanner. The 'days' setting may cover a three week period. Means are provided for checking that the correct programme has been set Fig. 4 (not shown). The AND gates may be relays (PM1) (PM2) Fig. 2 (not shown) two inputs being connected to a winding and the third to a contact of the relay.
Patent GB-549370-A (GB)
Title: Polymeric materials
IPC: C08K5/18
Filed: 1941-05-16
Abstract: 549,370. Polyamides. DU PONT DE NEMOURS & CO., E. I., and GRAVES, G. D; May 16, 1941, No. 6332. [Class 2 (iii)] Synthetic linear polyamides, e.g. as described in Specifications 461,236 and 461,237 are stabilized towards atmospheric degradation at elevated temperatures by incorporating therein an amino-hydrogen-containing aromatic amine having at least two cyclic nuclei and an "apparent oxidationpotential" between O. 70 and 1.30 volts. e.g. phenyl-α-naphthylamine, #-naphthylamine, di-phenyl guanidine, phenothiazine, sym - diphenylethylene - diamine, 2 - aminodiphenyl, diazoaminoberizene, thiodinaphthylamine. Incorporation is effected by means of a solvent for the stabilizer which is a non-solvent or plasticizer for the polyamide, e.g. ethanolwater, dioxane; a dihydroxamic acid is preferably added with the stabilizer, e.g. adipidihydroxamic acid, #-phenyladipodihydroxamic acid. The amine may be added to the initial polyamide forming components and to the molten polyamide. In examples (1) a copper wire coated with polyhexamethylene adipamide is immersed for 15 mins. in a solution of phenyl- α-naphthylamine, adipohydroxamic acid, ethanol and water heated to 65‹C. The wire is washed and dried and wound on a 1/32-inch mandrel; shows no signs of cracking when exposed to air at 150‹C.
Patent GB-1375581-A (GB)
IPC: B66C1/06
Filed: 1972-02-18
Abstract: 1375581 Grabs BRITISH IRON & STEEL RESEARCH ASSOCIATION 18 Feb 1972 [9 March 1971] 6350/71 Heading B8H An attachment for an electromagnetic grab for handling non-magnetic material comprises a housing 6 adapted to be supported on an electromagnet 3 suspended by chains 4 and pivotally supporting at 14 lifting arms 13 which are movable into a gripping position on energization of the electromagnet. The housing 6 supports a pillar 17 on which sleeve 16 supports an annular core 15 of magnetic material such as soft iron. A piston and cylinder device 22 is pivotally connected between the core 15 and the housing 6 and is connected by a hose 26 to an hydraulic ram 23 pivoted between each arm 13 and the housing 6. The ram 23 is connected by a hose 25 to a pressurizable reservoir 24. In operation, energization of the magnet 3 causes the core 15 to move to the upper position shown, the resulting extension of the device 22 causing extension of the ram 23 and thereby pivoting the arms 13 downwardly into a load engaging position.
Patent GB-576217-A (GB)
Title: Improvements in projectiles
IPC: F42B14/06
Filed: 1943-03-08
Abstract: 576,217. Projectiles. PERMUTTER, L. March 8, 1943, No. 6401/42. [Class 9 (i)] A sub-calibre projectile fitted with a casing adapted to hold the projectile firmly in every direction so as to transmit both thrust and rotation, has the casing formed in two longitudinally relatively-movable parts, the forward part being in separable sections contacting with the shoulder of the projectile so that they are opened outwardly on the initial set-back and are released from the projectile after passing out of the gun muzzle. In one form, Fig. 1, the rear part 40 of the casing supports the base of the projectile 39 and is provided with a forward socket 44 which receives a spigot on the united forward sections 41 which are incompletely separated by saw-cuts 45 and provided with weakened portions 48, and have shaped front portions 49 contacting with the curved nose of the projectile. On initial setback at firing, the forward sections are ruptured at 48 and the sections are free to fly off as soon as the projectile leaves the muzzle. In a modification, Fig. 3, the forward portion 57 of the casing is formed in sections retained in engaging position before firing by interengaging projections 59, 61 on the sections and the casing respectively ; on initial set-back, the projection on the sections and casing enter corresponding recesses 56, 60 in the casing and sections, respectively, so that the sections are free to fly off as soon as the projectile is free from the barrel. The projectile has a frusto-conical base part 54.
Patent GB-415779-A (GB)
Title: Improvements in or relating to explosive priming compositions
IPC: C06B43/00
Filed: 1933-03-02
Abstract: 415,779. Explosives. WEALE, A., The Pinnacle, Heswall, Cheshire, RENFREW, A., Rozelle, North Crescent, Ardrossan, Ayrshire, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. March 2, 1933, No. 6420. [Class 9 (ii).] Tetramethylene diperoxide dicarbamide is used in priming compositions with other usual ingredients such as mercury fulminate or lead trinitroresorcinate, barium nitrate or potassium chlorate, antimony sulphide, and guanylnitrosaminoguanyltetrazene.
Patent GB-1309370-A (GB)
Title: Frequency sources
IPC: H04B1/74
Filed: 1972-02-11
Abstract: 1309370 Pulse amplifying systems; carrier supplies COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CITALCATEL 11 Feb 1972 [12 Feb 1971] 6490/72 Headings H3T and H4R In a redundant system for amplifying a pulse train, alternate pulses are normally passed to the output through respective amplifiers but in the event of one amplifier failing, all the pulses pass through the other amplifier. Fig. 2a shows a pulse amplifier system for the basic frequency pulse supply of a carrier telephone system. The input pulses at E pass to two channels, including amplifiers 23 and 24, feeding an output transformer 11, the path through the latter amplifier including an additional inverter 22<SP>1</SP> to account for the change of polarity effected by the lower winding of the transformer. The pulses are also fed to a bi-stable circuit 10 which alternately opens NAND gates 21 and 22 so that the channels are enabled alternately. A further NAND gate 25 detects the presence of an input pulse when the upper channel is enabled and its output is differentiated by a circuit C 3 R 1  to provide one input for an exclusive OR circuit 27. This detects the absence of an amplifier output pulse when one should be present and correspondingly sets a bi-stable circuit 37. The output of this operates an alarm 33 and also sets the bi-stable circuit 10 to the state which directs all the input pulses through the lower channel. A corresponding changeover occurs if the lower channel fails. In Fig. 3 (not shown) additional logic circuity is provided to monitor correct operation in a fail safe manner and the Specification describes the operation in fifteen failure modes.
Patent GB-732833-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B13/18
Filed: 1952-03-13
Abstract: 732,833. Photographic cameras. HEIDECKE R., [trading as FRANKE & HEIDECKE]. March 13, 1952 [June 20, 1951], No. 6538/52. Class 98 (1). In a twin-lens camera fixed projections are provided overlying one edge of the focusing screen beneath which an edge of a mask or a mount for a field lens, filter, or polarizing screen can be inserted and other projections normally overlying the opposite edge of the mask or mount are movable separately or together by externally operable means to lie clear of the mask or mount. As shown, a field limiting mask 4 for use when a smaller picture gate is employed is held on the focusing screen Z of a twin-lens camera provided with a hinged collapsible focusing hood beneath fixed projections on one margin of a frame surrounding the screen and by clips 8 on the opposite margin, each of the clips being pivotally mounted about pins 14 in recesses in the frame and urged into the position shown by engagement of an arm 12 of the clip with lugs 11 carrying a leaf spring 9 which is adapted to press the focusing screen against a seating 10. Alternatively a resilient wire located along one margin of the frame has at its ends crooked fingers which project through openings in the frame to clamp the mask. A horizontally movable slide is arranged to engage the centre of this wire and when pressed flexes it so as to withdraw the fingers into the frame to release the mask. The manually operable portions of the mask-clamping members may be used to secure a supplementary leather hood over the focusing screen.
Patent GB-765541-A (GB)
Title: Improvements relating to dispersion mills
IPC: B01F7/16
Filed: 1955-03-07
Abstract: 765,541. Mixing machines. KINETIC DISPERSION CORPORATION. March 7, 1955, No. 6662/55. Class 86 A dispersion apparatus used, for example, in dispersing pigments in liquids comprises a vessel 10 and dispersing means therein comprising a stator and a rotor, the stator being formed by upper and lower plates 20, 21, at least one of which has a central opening for ingress of materials, and by an annular member 22 extending between the plates and formed with narrow substantially radial slots 49, and the rotor being disposed within the stator and having outwardly projecting blades, the upper and lower portions being disposed adjaplates 20, 21, and the blades cent the upper and lower being arranged to trail relative to the direction of rotation and terminating close to the annular member 22. A shown, the rotor is formed in abutting upper and lower halves 40, 41 provided, respectively, with rotor blades 47, 48, which terminate outwardly in arcuate end portions substantially meeting the inner periphery of the ring 22. The rotor is driven through pulleys 51, 52 and a driving belt 53 from a motor 50. A wall 11 around the container provides space for heat-exchanging liquid.
Patent GB-1137803-A (GB)
Title: Photoconductive devices and the method for manufacturing the same
IPC: G03G5/043
Filed: 1967-02-13
Abstract: 1,137,803. Photo-conductive devices; image pick-up tubes. TOKYO SHIBAURA ELECTRIC CO. Ltd. 13 Feb., 1967 [14 Feb., 1966; 25 Feb., 1966 (3)], No. 6701/67. Headings H1D and H1K. A photo-conductive device includes layers 30 of a photo-conductive material and layers 31 either of another photo-conductive material having a different spectral response or of an insulating material. Both layers 30, 31 are less than 2Á thick, and there are at least five of each type of layer. In the embodiment the layers 30, 31 are applied to an insulating faceplate 18 of an image pick-up tube, Fig. 1 (not shown), on which is first deposited a transparent conducting film 19, Fig. 2, e.g. of tin oxide. Suitable photo-conducting materials are lead oxide and lead sulphide for layers 30, 31 having thicknesses of 0À8Á and 0À2Á and dark resistivities of greater than and less than 1011 #-cm. respectively. The layers may be intrinsic, or doped alternately N and P-type, suitable dopants being Sb, As or Bi and O, Ag, Cu or Tl respectively. Other suitable photo-conductors include oxides, sulphides, selenides and tellurides of Pb, Sb, As, Cu, Ag or Cd. If the layers 31 are required to be insulating, suitable materials include silicon monoxide, calcium fluoride and magnesium fluoride. Apparatus is described in which lead oxide and lead sulphide layers are successively deposited on the substrate by vapour deposition in a low-pressure oxygen atmosphere. The substrate may be mounted either on a rotating support which passes successively over heated lead oxide and sulphide sources (Fig. 3, not shown), or on a stationary support where it is subjected to alternate lead oxide and sulphide depositions according to the position of a rotating notched shutter between the substrate and the sources (Fig. 4, not shown). In a further embodiment additional photoconductive layers, e.g. of lead oxide containing a trace of an oxide or sulphide of a trivalent metal, such as antimony trisulphide, or of lead oxide containing a trace of an oxide or sulphide of a monovalent metal, are provided on one or both sides of the laminated structure of the invention. The invention may also be applied to light amplification.
Patent GB-1462856-A (GB)
Title: Production of composite containers
IPC: B31B50/00
Filed: 1973-02-12
Abstract: 1462856 Joining by injection moulding AIRFIX INDUSTRIES Ltd 11 Feb 1974 [12 Feb 1973 22 March 1973] 6722/73 and 14016/73 Heading B5A A method of making an article including at least two walls 1, 2 one projecting from the surface of the other, comprises forming a blank to provide a panel in respect of each wall, forming a slit 6 or 6a in the blank in the region between the panels to define a cut-away (see Fig. 2)  when the blank is folded about hinge parts 7 remaining at each end of the slit, placing the folded blank in a mould and injecting material into the mould cavity in the region of the cut away. The slits 6, 6a lie on the arc of the edge of a side panel but if desired could follow the arc of the base panel 1. Alternatively the slit may be rectilinear. In Fig. 4, a mould 32, 33 is shown, and material is injected through a pin gate 35 at the base of each seam channel 32a in the mould core 32. The blank may be provided with modulations 39 at the side seams and the base to side panel seams to improve the anchorage of the injected material.
Patent GB-902926-A (GB)
Title: Improvements in and relating to discharging liquefied gas containers
IPC: F17C13/04
Filed: 1961-02-24
Abstract: 902,926. Discharging liquefied gas containers. UNION CARBIDE CORPORATION. Feb. 24, 1961 [Feb. 26, 1960], No. 6783/61. Class 8(2). Equalization of flow of liquefied gas from each of a plurality of liquefied gas containers 10, Fig. 1, discharging in parallel through checkvalved outlets 14 into a manifold 16 is effected by connecting together the vapour spaces through the liquefied gas charging inlets 12 by unseating a ball valve 28, Fig. 2, in each inlet 12 on sliding a hollow stem 24 along the axis of a nipple 26 held against a seat 46 by a nut 22 until on unseating said valve 28 a lateral bore 60 connects a chamber 54 to the axial bore 58 of the stem 24 which is connected by a flexible pipe 20 to the stem of an adjacent container. Each stem is held in its valve-opening position against a return spring 44 by a bayonet joint 32, 34, 36, 38.