baber/WOPTO huggingface dataset:
Patent GB-901730-A (GB)
Title: A control device for use in processes wherein lengths of materials are treated
Inventor: CATLING HAROLD
IPC: D01G23/06
Filed: 1957-08-03
Abstract: 901,730. Automatic control systems for textile machines. COTTON, SILK & MAN-MADE FIBRES RESEARCH ASSOCIATION. Aug. 1, 1958 [Aug. 3, 1957], No. 24672/57. Class 38 (4). [Also in Group IX] In an automatic control system for a process, wherein a material passes continuously through successive stages of treatment and one machine or more is arranged in parallel at each stage, a property of the material being processed is measured to detect short-term fluctuations and the machine controlled to compensate therefor, and long-term change in the mean degree of the modification effected by the machine is detected and arranged to adjust the controlling effect due to the short-term fluctuations. In a drafting head, Fig. 1, the material to be drafted passes through front and back pairs of rollers 11, 12 and 13, 14, each providing a nip, and emerges as a sliver from the front rollers. The lower back roller 14 is driven at a fixed speed and the lower front roller by a variablespeed motor 16. The upper front roller 12 is pivotally mounted and connected to an arm 19 of a potentiometer 20 in the motor 16 control circuit so that variation in sliver thickness causes a compensating change in motor speed. The lower front roller 12 is connected to a first crown-wheel 22 of a differential and a second crown-wheel is connected to a gear-wheel 29 driven by a gear-wheel 30 connected to the lower back roller 14. The reduction ratio between gear-wheels 30, 29, is equal to the mean draft of the drafting head and movement of a cage 26 represents the deviation of the speed of the motor 16 from the required value. The cage 26 is connected to an arm 27 of a potentiometer 28 and varies the supply to the potentiometer 20 so as to maintain the desired mean value of the draft. In another embodiment, Fig. 3, a scutcher comprising a beater 31, cages 32, 33, calender rollers 34-37 and lap rollers 38, 39 is fed with cotton from a weighing hopper 77 by a feed lattice 40 and pedal roller 41. The main drive it to beater 31 and a core drum 45 is geardriven from calender roller 37 and drives by a belt 51 a core drum 44 driving the pedal roller. Variation in thickness of material passing the pedal roller moves a pedal assembly 42 supported by a knife rail 43 and through a lever system 46, 47 varies the drive to core 44 so as to compensate for the variation. Crownwheels 63, 64 of a differential arc driven by the core pulleys and a cage 68 drives through reduction gearing 69-75 a threaded shaft engaged with a nut 48 carrying a pivot of the lever 47. Movement of the pivot of the lever 47 tends to equalize the speeds of core pulleys 44, 45 and so maintain the draft at the desired mean value.
Patent GB-518374-A (GB)
Title: Improvements in or relating to a method of and means for stereoscopic projection
IPC: G03B35/20
Filed: 1938-08-22
Abstract: 518,374. Stereoscopic kinematography. ZEISS IKON AKT.-GES. Aug. 22, 1938, No. 24706. Convention date, Aug. 20, 1937. -[Class 97 (i)] In the projection of stereoscopic pictures which have been recorded in the form of two component pictures, boundary surfaces of optically denser and rarer media are so arranged in the ray paths that the rays forming the two side images (or main images) are totally reflected, and the rays forming the main images (or side images) are transmitted. As shown, the rays from the two pictures 1, 2, arranged side-by-side, are received by the projection lens 3 behind which are two achromatic prism combinations each consisting of two prisms 6, 7 separated by an air gap, one prism combination, shown in full lines, occupying the upper half of the field, and the other, shown in dotted lines, occupying the lower half with the bases of the two prisms reversed relatively to those of the upper combination. Rays from the picture 2 passing through the upper prism 6 are internally reflected at the exit surface of this prism and rays from'the picture 1 are transmitted, whereas rays from the picture 1 are totally reflected by the lower prism 6 and rays from the picture 2 are transmitted. The deviations of the prisms are such that the projected images are superposed on the screen. The system includes a polarization filter 8, in two parts having transmission directions at 90 degrees to each other. Specification 505,800 is referred to.
Patent GB-190250-A (GB)
Title: Improved means for stretching skins and the like
IPC: C14B1/26
Filed: 1921-09-17
Abstract: 190,250. Wheeler & Sons, Ltd., and Wheeler, A. E. Sept. 17, 1921. Stretching by tension.-An appliance for stretching skins and like articles during drying or other treatment comprises a pair of rigid stretcher bars extending in the same general plane and adapted to be secured to opposite edges of a skin, and a spring device for forcing the bars apart, the spring being so arranged that the bars can assume a position inclined to one another in their common plane to allow of a uniform tension being applied throughout the length of the skin. The stretcher bars a, which may consist of a single rod or of two sections united end to end, as shown on the left and right of the Figure respectively, are pivotally connected, near the centre of their length, to the outwardly-bent ends d of a spring c, which is preferably formed from a steel rod or wire bent to V-shape and provided at the apex with a helical coil e to increase the resiliency. The skins are secured to the. bars by means of pins b, which may be detachable, or by spring clips, screw clamps or other devices. In a modification, each stretcher bar is provided with an inwardly-extending rod of half-round section which slides over, and by means of a ring or collar at its end embraces the corresponding rod on the other stretcher bar, the bars being forced apart by a coiled tension spring acting between the collars.
Patent GB-302406-A (GB)
Title: Improvements in flat work ironers
IPC: D06F83/00
Filed: 1927-09-20
Abstract: 302,406. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). Sept. 20, 1927. Ironing-machines with rollers rotating against concave surfaces. -The padding 25 is spaced from the roller 8 by springs 23 to form an annular chamber around the roller open to the atmosphere at both ends. Rings 27 fixed to brackets 26, which are secured to the end discs of the roller, support the ends of the padding. The cylindrical surface of the roller is perforated at approximately its middle only and into the perforations nipples 19 are screwed. One or both of the trunnions of the roller is/are made hollow for connection to exhausting means. A port 14 in one of the heads 9 of the roller communicates with one of the hollow trunnions 11 to provide for the escape of water of condensation, the nipples 19 preventing it from returning through the padding. Air is drawn through the padding, the openings 28 at the ends of the roller between the brackets 26, the annular chamber and the nipples 19, and thence through the hollow trunnions.
Patent GB-410378-A (GB)
Title: Improvements in or relating to change speed transmission mechanism
IPC: F16D23/08
Filed: 1933-09-07
Abstract: 410,378. Claw clutches; facilitating changing speed. PULSOMETER ENGINEERING CO., Ltd., and WARREN, R., Nine Elms Iron Works, Reading. Sept. 7, 1933, No. 24831. Addition to 394,144. [Class 80 (ii).] A claw clutch 9, 11 arranged, according to the parent Specification, between the gear-box shaft 2 and the propeller shaft of a motor vehicle, is modified by mounting the balking ring 12, which is capable of limited rotation relative to the driven element 11 and has dogs corresponding to those on that element, in a recess in the operative face of the element 11, so that the dogs on the ring 12 lie radially inwards of the dogs on the element 11. The ring 12 is acted upon constantly by a resilient, dished, friction washer 20 interposed between the ring and an abutment 19 on the shaft 2, on which the driving clutch element 9 is splined. The latter element, which is urged towards engaged position by a spring 18, has a conical part 8 adapted to coact with a fixed brake ring 7 and is controlled by a fork 15, as in the parent Specification.
Patent GB-447528-A (GB)
Title: Improvements in or relating to simulated wood panel veneered surfaces
IPC: B44F9/02
Filed: 1935-09-06
Abstract: 447,528. Stencils and stencilling. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Reliance Varnish Co. ; Louisville, Kentucky, U.S.A.) Sept. 6, 1935, No. 24889. [Class 100 (ii)] An imitation of a surface veneered with matched wood panels is produced by spraying stain or other colouring material through a stencil having openings corresponding to the grain &c. markings on the wood ; the surface to be decorated may be coloured to correspond with the background colour of the wood. A stencil 1, Fig. 1, has openings 2 forming four rectangular sections, the ends of the openings in adjacent sections being preferably separated by strips 4. A surface to be decorated is provided with a background coating, the stencil is laid on the surface, and colour is applied by spraying, the boundaries 4 forming lines of separation between the four panels. Preferably, a thin wire shield is interposed between the stencil 1 and the surface, e.g. by being attached to the stencil along the boundary line, whereby the stencil is raised off the surface so that colour can spread beyond the openings, and whereby the separation lines are shielded from the colour. Fig. 7 shows a surface S provided with a design of the type comprising an inner panel section separated from an outer section by a groove 8, an additional groove 9 being provided also. In this case, the grooves 8, 9 are formed in the surface S, the sections are coloured differently, the inner section being stippled, and colour is sprayed through a stencil which is correctly aligned by means of wires attached to the stencil along the boundaries and adapted to engage the grooves.
Patent GB-244866-A (GB)
Title: Improvements in and relating to electric welding and the like
IPC: B23K11/24
Filed: 1924-10-20
Abstract: 244,866. Ellis, G. B., (Murray. T. E.). Oct. 20, 1924. Heating by electricity.-An apparatus for electric welding, applicable also to analogous operations such as riveting and forging, has automatic means for exerting a varying pressure on the work and for varying the welding current during the operation. The work is mounted between electrodes 2, 4, which form part of the secondarv circuit 5 of a transformer and the upper electrode is pressed downwards by means of two pairs of toggle levers mounted on fixed supports 8, 10 and actuated through a link 12 from a lever 13 controlled by a solenoid 16. In order to vary the welding current independently of the variations produced by the pressure changes, an arm 30 may be progressively withdrawn from a choke coil 31 in the primary circuit 32 of the transformer. The solenoid mav actuate the core 30 of the choke as shown in Fig. 2 through an arm 29, toothed lever 33, and cam 36.
Patent GB-518421-A (GB)
Title: Improvements in or relating to automatic lubricating devices
IPC: F16N19/00
Filed: 1938-08-24
Abstract: 518,421. Lubricators. Mc MULLEN, P. Aug. 24, 1938, No. 24942. [Class 12 (iii)] An oil reservoir 8 fitted with downwardly extending spouts 9, 10 is secured by a bayonet joint to a sleeve 4 slidably mounted in a chamber 3 which is connected by a tube 2 to a vessel 1 in which the oil level when an engine or machine is being supplied with lubricant is to be kept at a constant level A-A. The sleeve 4 after adjustment is secured by a nut 5 and packing ring 6. The spout should extend slightly below the spout 9 to obtain a smooth oil flow If the sleeve 4 is not open at the top to air,the tube 2 must be horizontal or slope upwardly to allow the entrance of air. In an alternative arrangement the reservoir rests by its cap 16 on a sleeve 11 which is threaded in a chamber 12 and is secured at the desired height by a nut 14 and packing ring 15. Thechamber 12 is connected at one of two openings 13, 13A to the lubrication vessel, the unused opening being plugged. A collar 17 prevents displaceinent of the reservoir. The upper edge of the sleeve 11 is uneven to allow air to enter below the cap 16. A packing to prevent the entrance of dust may be provided between the cup and the sleeve.
Patent GB-925084-A (GB)
Title: Method for forming passivating films on semiconductor bodies
IPC: H01L23/29
Filed: 1959-07-21
Abstract: A polysiloxane is formed in situ on a semiconductor by the copolymerization of a predetermined mixture of poly-functional organosilicon monomers, e.g. having proportions by weight of 1-5% monofunctional, 5-40% of difunctional and the balance trifunctional monomers.  In a first example hydrolysed methyl triethoxysilane in toluene, diphenyl silandiol and hexamethyl disiloxane are used together with N-phenyl-2-naphthylamine as an oxidation inhibitor and in a second example, hydrolysed ethyl triethoxy silane in carbon disulphide and hydrogen peroxide as catalyst and disproportionating agents are used.  Polymerization is carried out partially by heating to 80 DEG -100 DEG C. for 2-10 mins. with final curing at 150 DEG -200 DEG C. for at least 6 hours.  2-naphthyl phenyl amine, N-phenyl-2-naphthylamine, phenylene diamine and other amines or dihydroxy benzenes are stated to be suitable antioxidants and lead or zinc octoate, carbon disulphide, hydrogen peroxide and organoperoxides to be suitable catalysts.  In general, the silanes utilized as monomers have the formula RnSiXn-4 where X is a chemically active group such as halogen, hydroxy, alkoxy or amino and R is theyl, phenyl, epoxy, vinyl or nitrile, the monomer being hydrolysed prior to use if necessary.  Specifications 893,859 and 925,085 are referred to.
Patent GB-160718-A (GB)
Title: A new or improved apparatus or device for drying varnished or other paper or like material
IPC: D21F5/00
Filed: 1920-08-31
Abstract: 160,718. Jenner, r. Aug. 31, 1920. Endless band conveyers, articles carried by; heating fittings.-Relates to apparatus for drying varnished sheets &c. and of the type in which the sheets are passed through a heated chamber upon an endless band. As shown, the endless band d, Figs. 1 and 3, carrying the varnished sheets and supported upon rollers d<1> and bolts a<4>, passes through the upper part of the open-ended drying- chamber a. The chamber is heated by Bunsen burners b a grid as being placed between the burners and the band. Gas is supplied to the burners through pipes c<2> from a main c<1>. The drying-apparatus may be combined with a papervarnishing machine from which the endless band may be driven. The chamber may be electrically heated, and its ends may be partly closed by sliding shutters. Instead of supporting the chamber upon legs, it may be suspended from the ceiling.
Patent GB-589149-A (GB)
Title: Improvements in or relating to the manufacture of electrical insulating oils
IPC: H01B3/22
Filed: 1944-12-14
Abstract: An electrical insulating oil comprises a mixture of a highly refined mineral oil and a proportion not greater than 50 per cent. by weight of the finished oil of a highly aromatic extract phase from the solvent refining of mineral oils, which extract has been itself separately refined and has a viscosity-gravity constant greater than 0.920.  An extract phase which has been refined by treatment with sulphuric acid and an adsorbent earth with or without lime is preferably used.  Extracts exemplified comprise the portions of a spindle oil distillate which are soluble in liquid sulphur dioxide at 10 DEG C. and at 0 DEG C. respectively.  An example of a highly refined mineral oil comprises a spindle oil made by conventional acid and clay refining of a suitable distillate.  Specification 589,150 and U.S.A.  Specifications 2,087,578, 2,176,952, and 2,195,659 are referred to.
Patent GB-253400-A (GB)
Title: Improvements in hydraulic power transmission mechanism
IPC: F16H41/02
Filed: 1925-10-08
Abstract: 253,400. Nydqvist, A. Oct. 8, 1925. Impeller blades; regulating.-In pumps and turbines for the hydraulic transmission of power having blades formed with relatively rotatable sections, means are carried by each outer and intermediate section for automatically coupling it to a second section, under the control of the second section. In the form shown in Figs. 2 and 4, the turbine comprises blades 7 carried by a ring 8 fixed to the shaft 2, and blades 9, 10 carried by rotatably mounted rings 11, 13. Pawls 16 pivotally mounted on the ring 13, have operating levers 17 with slotted ends engaging pins 19 on a ring 20 mounted on the ring 11 near its hub, the arrangement being such that, when the angular velocity of the ring 11 falls below that of the ring 13, the pawls are moved to engage recesses 160 in the ring 11 and couple the rings 11, 13. A similar arrangement of pawls and co-operating parts is provided between the rings 11 and 8.
Patent GB-727605-A (GB)
Title: Improvements in feeding and assembling nuts and washers
IPC: B23P19/08
Filed: 1952-10-08
Abstract: 727,605. Hoppers. ILLINOIS TOOL WORKS. Oct. 8, 1952 [Oct. 11, 1951], No. 25238/52. Class 78(1). [Also in Group XXII] Apparatus for feeding washers, preferably toothed locking washers comprises a movable feed member 80, Figs. 2, 5, having a surface receiving a supply of washers to be fed and outwardly opening recesses 90 in its edge to receive washers from said surface, a second feed member 78 spaced below and moving in unison with the upper feed member and having recesses in alignment with the recesses in the upper feed member, and a fixed support 104 of limited extent lying between the recesses in the two feed members so that the washers first rest in the recesses in the upper feed member and then drop into the recesses in the lower feed member. The two feed members are revolving discs disposed inside a hopper 50 and driven by an electric motor 122, Fig. 1. A stationary inclined feed-plate 102 facilitates the feeding of the washers into the recesses 90 and an agitator 140 prevents them from piling up at the bottom of the plate 102. Each washer has a conical flange on one side thereof and a deflector 126 ejects from the recesses 90 those washers whose flange is downwards and allows those washers whose flange is upwards to pass to a nut supply shoot 38. The washer feed is incorporated in a device for assembling together nuts and locking washers. The nuts are supplied from a hopper 34 containing a rotating disc 42 driven by an electric motor 46 and having in its periphery a series of grooves 37 which pick up the nuts and convey them to a shoot 41, 38 down which they pass to the washer hopper 50. The nuts have a spigot on one face thereof and during their passage down the shoot a selector device 43 rejects those nuts which have the spigot upwards and returns them to the hopper. A pneumatic vibrator is fitted to the selector to facilitate the passage of the nuts. The shoot 38 supplies a nut to a washer in each recess 90 and a gate device 172 prevents the nut being released if no washer is present in the recess. The assembled nuts and washers are then conveyed to a shoot 52 which feeds them to a staking machine 54, (see Group XXII).
Patent GB-160489-A (GB)
Title: Improvements in feed apparatus for steam boilers
IPC: F22D5/34
Filed: 1919-10-15
Abstract: 160,489. Fuller, J. Oct. 15, 1919. Feed-water, supplying and controlling.-In a boiler feed arrangement, particularly for use with portable and traction engines, in which the feed-pump and tank are some distance from the boiler and a feed - injector 7 is fitted close to the boiler, instead of returning surplus feed from the pump supply pipe 5 to the check valve 3 back to the tank by the usual pipe 8, a pipe 1, provided with a cock 2, is fitted, to pass the surplus feed to the injector suction pipe 6, and then to the tank.
Patent GB-1429687-A (GB)
Title: Process utilizing photographic element containging a physical development activator
IPC: G03F7/06
Filed: 1973-05-25
Abstract: 1429687 Photographic physical development process ITEK CORP 25 May 1973 [1 June 1972] 25278/73 Heading G2C A process of photographic physical development comprises contacting a photographic element comprising a support carrying a layer containing an image pattern of physical development nuclei and, in said layer or in a layer contiguous thereto, a physical developer activator, with a unitary physical developer having a #E of less than 100 millivolts. The physical development activator is present in an amount sufficient to increase the physical development rate at least about 30% on that obtained in the absence of said activator, and specified activators include ammonium citrate, tartrate or lactate, sodium salicylate, sulphate, tartrate or hydrogen tartrate, calcium acetate, disodium EDTA, t-butylamine tartrate, acetylacetone and triethanolamine. A unitary physical developer is one containing metal ions in the same solution as a reducing agent for such ions, and the #E indicates that the developer has a low activity, giving little or no useful image in the absence of a physical developer activator. The image pattern of development nuclei may be formed (i) by exposure of a photographic silver halide emulsion, (ii) by exposure of a photo-conductor e.g. TiO 2  with or without treatment with a metal ion e.g. Ag ion solution, (iii) by exposure of a ferric salt/silver salt sensitized medium, (iv) by diffusion transfer, (v) by exposure of a photopolymer layer over a germ nuclei layer, or (vi) by exposure of a prefogged photo-sensitive lead iodide or As 2 S 3  material. The process is especially used in the preparation of printing plates having grained and anodized aluminium  supports and Examples 1, 2 and 16-27 illustrate this using silver chloride emulsions and silverdepositing physical developers.
Patent GB-1047845-A (GB)
Title: Composite reinforced structure of synthetic plastics material and concrete and process for forming same
Inventor: BAILEY DENNIS FREDERICK
IPC: E04C2/04
Filed: 1962-07-03
Abstract: 1,047,845. Lined concrete pipes. BAKELITE Ltd. June 28, 1963 [July 3, 1962], No. 25390/62. Heading F2P. [Also in Division E1 A process for forming a composite structure, e.g. a lined pipe, comprising a reinforced resinous material 1, in which the resin base is either an epoxide resin hardenable at room temperature or an unsaturated polyester resin so hardenable with a copolymerizable monomer, and concrete 2 includes laying up the unhardened reinforced resinous material 1 so as to conform to the contours of the structure, partially embedding a keying device 3 in the said material 1 which is then hardened before placing it in the required position, supported if necessary, casting fluid concrete 2 in contact with it to envelope the projecting portions of the keying device 3 and causing or allowing the concrete 2 to harden. The material 1 may comprise fibrous filler, e.g. glass fibre. The keying device 3 may be a diamond mesh expanded metal strip or it may take the form of an assembly of wire-formed units, free to move in relation to each other sufficiently to follow the contour of the composite structure. The units may be embedded in a glass tape or their ends may be connected by lengths of flexible tubing.
Patent GB-225333-A (GB)
Title: Improvements in or relating to the hardening of the wearing surfaces of wheels and tyres and burners therefor
IPC: C21D9/34
Filed: 1923-10-12
Abstract: 225,333. Boucher, C. L. Oct. 12, 1923. Burners, attaching and mounting, applications of; flame deflectors.-In an apparatus for hardening the wearing surfaces of wheels, tyres, &c. the wheel E is rotatably mounted in bearings C adjustable on bridge-pieces B supported! by a standard and the tank A, and the heating burner S is carried by a clamp R secured to a slide 0 capable of transverse movement by means of a screw and a hand-wheel Q. The slide 0 is carried bv a block N adapted to be moved along a frame K carried by a bracket J by a screw L operated by a hand-wheel M. Baffles V carried by arms c secured to the bearings C prevent the flames from passing upwardly.