baber/WOPTO huggingface dataset:
Patent GB-695188-A (GB)
Title: Improvements in or relating to apparatus for developing photographic sensitised materials
IPC: G03D7/00
Filed: 1952-05-08
Abstract: 695,188. Photographic developing apparatus. OZALID CO., Ltd., and BRIDGEWATER, W. R. May 8, 1952, No. 11710/52. Addition to 686,989. Drawings to Specification. Class 98 (ii). The apparatus of the parent Specification, in which exposed material is traversed over a perforated screen constituting a wall of a development chamber and subjected to the action of a vapour, usually ammonia, generated from a developing liquid by heating means within the chamber, and in which the receptacle for liquid developer is a tube extending substantially horizontally and parallel with the perforated screen and provided with a longitudinal slot on the side remote from the screen, is modified by the replacement of the longitudinal slot in the vaporizing tube by a succession of spaced apertures which may be arranged to have increasing vapour-einission area towards the end of the tube remote from the liquid developer inlet, or by the use of a longitudinal slot of tapering width to provide similar increasing vapour-emission area. Specification 495,392 also is referred to.
Patent GB-310184-A (GB)
Title: Improvements in or relating to coal or coke cutting or breaking machines
IPC: B02C18/24
Filed: 1928-04-21
Abstract: 310,184. Woodhead, T. P. April 21, 1928. Roller mills.-In a coal or coke cutting machine of the kind in which the coal &c. is broken by rotary cutters fitted on parallel shafts 2, 3 which are geared together directly, one shaft 3 is mounted in slidable bearings 8 adapted to permit lateral movement of the shaft without affecting the position of the gears. Fast and loose pulleys 4, 5 are mounted on the shaft 2 and a pinion 6 drives a gear wheel 7 mounted on a hollow sleeve 14, Fig. 3, fixed to the casing 1. The shaft 3 passes through the hollow sleeve, the end being provided with a crank-arm 9 which engages within a slot 10 in the wheel 7 and forms the driving means for the shaft. Backlash between the crankarm and slot is prevented by a cam, eccentric or spring 12. Movement of the shaft 3 within the sleeve 14 occurs when the bearing 8 is adjusted and this movement does not affect the meshing of the gear wheels 6, 7.
Patent GB-139688-A (GB)
Title: Improvements in or relating to means for effecting the attachment and detachment of pneumatic tyres to and from the wheels of automobiles and other vehicles
IPC: B60C25/04
Filed: 1919-05-10
Abstract: 139,688. Vaughan, E. May 10, 1919. Stands.-In means for removing and replacing a tyre cover when a wheel has been removed from its operative position on a vehicle, the wheel b is supported on a stand a, Figs. 1 and 2, and is prevented from rotating by a conical nut d. A tyre lever f pivots about an axis c<1>, one end f<2> of the lever being employed to replace the cover and the other end f<3> to remove it. A detachable part e, having projections e<1> for engagement with corresponding projections a<1> on the stand, has its upper face e<2> shaped to engage projecting bolt heads &c. on the wheel hub. The stand may be the spare-wheel stand i, Figs. 7 and 9, of a motorcar, and a ratchet l may be arranged on the stand to permit rotation of the wheel g in one direction only, the stepped spindle k and the reversible nut o being constructed to permit either of this rotation or of locking the wheel against rotation.
Patent GB-1102221-A (GB)
Title: Process for preparing pyridine or substituted pyridines
Inventor: BELL WILLIAM HAMILTON
IPC: C07D213/09
Filed: 1965-03-19
Abstract: In a process for the preparation of pyridine and hydrocarbyl substituted pyridines by a dehydrogenation process by heating an amine or imine with iodine in the vapour phase at 300-800 DEG  C., as claimed in Specification 1,098,725, molecular oxygen and a catalyst comprising a compound of an alkali or alkaline earth metal are present.  The latter may be present as solids on the support material or they may be in the molten form.  Lithium and potassium compounds are preferred.  Additionally a compound of silver and/or rare earth metals may be present in the catalyst, as may a transition metal such as iron.
Patent GB-373737-A (GB)
Title: Improvements in or relating to the decoration of hard surface covering material
IPC: B44C3/02
Filed: 1931-04-21
Abstract: 373,737. Printing processes. ARMSTRONG CORK CO., Lancaster, Pennsylvania, U.S.A.-(Assignees of McCarthy, J. C. ; Manheim Township, Lancaster, Pennsylvania, U.S.A.) April 21, 1931, No. 11797. Convention date, May 26, 1930. Addition to 337,924, [Class 100 (ii), Printing processes &c.]. [Class 100 (ii).] The method of decorating hard-surfaced covering-material described in the parent Specification is modified by providing a coating below the superimposed upstanding pattern for the purpose of filling the pores in the base coating; the latter, however, is not necessarily in the form of a pattern. As described, a base coating which consists of an oil paint and may or may not be decorative, is applied to a web 2 supported by an endless band 5, by means of a doctor blade 3 provided with extremely fine notches, and the coating is flattened by a curved spring blade 6. An allover pattern is then printed on the base coating by a rotary offset machine, a pore-filling varnish coating is applied by spraying or by a doctor blade or rollers, a prominent pattern in a thick paint or metallic ink is applied by a block machine or by stencilling or other operation, and a final protective coat of lacquer is applied by rollers, followed by drying. The varnish coating may be applied before the pattern is dried.
Patent GB-1127009-A (GB)
Title: Yarn heaters
Inventor: LEE HAROLD WILLIAM
IPC: D02J13/00
Filed: 1966-03-22
Abstract: 1,127,009. Yarn heaters. ERNEST SCRAGG & SONS Ltd. 14 March, 1967 [22 March, 1966], No. 11804/67. Heading D1F. The yarn heater described and claimed is identical to that described and claimed in Specification 1,127,008 except that the chromium layer is omitted and the layer of non-porous material -forms the, surface of the heater plate.
Patent GB-880318-A (GB)
Title: Improvements relating to laminated sheet materials
Inventor: SAUL WALTER
IPC: B32B27/00
Filed: 1957-04-11
Abstract: Compositions, which may be sheeted out and used in laminates (see Group VIII), comprise: (1) Copolymer of vinyl chloride and vinylidine chloride (98:2), trixylyl phosphate, lead carbonate, acrylonitrile-butadiene copolymer rubber, sulphur, mercaptobenzthiazole, tetramethylthiuram disulphide, asbestos fibres and china clay; (2) Water-gas pitch, acrylonitrile-butadiene copolymer rubber, sulphur, mercaptobenzthiazole, tetramethylthiuram disulphide, stearic acid and china clay; (3) Polystyrene, acrylonitrilebutadiene copolymer rubber, trixylenol phosphate, china clay and asbestos fibres; and (4) Water-gas pitch, polystyrene, acrylonitrile-butadiene copolymer rubber, china clay and asbestos fibres.
Patent GB-551538-A (GB)
Title: Improvements in and relating to electric lampholders
IPC: H01R33/08
Filed: 1941-09-17
Abstract: 551,538. Lamp-holders. BRITISH THOMSONHOUSTON CO., Ltd. Sept. 17, 1941, No. 11885. Convention date, Sept. 18, 1940. [Class 38 (i)] A holder for a tubular lamp in which an insulating body 12 formed with a recess 13 containing a pair of contact-blades 14 and a central slotted boss 17 receives a pair of pin contacts C on the end of the lamp by lateral movement and rotation of the lamp, has lugs 20 projecting from the contacts 14 that serve to lock the lamp against removal by preventing it from being rotated. The lamp is released by means of a key 25, Fig. 4, having pivoted arms 27 that are guided by divergent ends 28 of the blades 14 when the key is inserted in the recess 13 and serve to deflect the blades 14 so that the lamp can be turned. In a modified form of the key 25, Fig. 7, the arms are dispensed with and cam surfaces 30 provided that deflect the blades 14 by direct engagement with the divergent ends 28.
Patent GB-682054-A (GB)
Title: Improvements in or relating to valve combinations particularly for use with tank filling devices
IPC: F16K17/168
Filed: 1948-05-06
Abstract: 682,054. Filling tanks. CARTER, J. C. May 6, 1948 [June 6, 1947], No. 11917/51. Divided out of 681,984. Drawings to Specification. Class 21 [Also in Group XXIX] The subject-matter of this Specification is identical with that described in Specification 681,984, but the claims differ. Specification 646,448, [Group XXIX], is referred to.
Patent GB-138241-A (GB)
Title: Improvements in or connected with loom picking bands and the attachment of same to the picker and picking stick
IPC: D03D49/38
Filed: 1919-05-13
Abstract: 138,241. Brook, F., and Haigh, W. May 13, 1919. Picking straps and connexions.-The picking- band b made from a single strip of leather or hide is formed with a loop b<1> by stitching to embrace the picking stick, which mav be recessed at a<1>. The loop may be furnished with a leather liner and is slotted to receive a screwed bolt h, which passes through a hole in the picking-stick and is secured by a thin, flat, or slightly rounded nut h<1>. This nut and the bolt head may be provided with studs to grip the leather and a lock-nut h<2> may be used. An additional securing means is used comprising a leather lace &c. i passed through the slots in the strap and around the stick and then crossed below the loop on the front side of the stick, the two ends or one end passed through an opening in the other being secured to a stud j behind the stick. Bolts k, i &c. similar to the bolts h are used to connect the strap b and the usual leather e to the picker c and pulling-back stick f. If the picking-band breaks, an additional piece of leather may be bolted thereto, passed through the picker slot, then bent back and secured by the bolt k..
Patent GB-1179855-A (GB)
Title: Improvements in or relating to Magnet Assemblies
Inventor: WATSON EDWARD
IPC: H01F7/20
Filed: 1967-03-14
Abstract: 1,179,855. Electromagnet. NEWPORT INSTRUMENTS Ltd. 13 March 1968 [14 March, 1967], No. 12015/67. Heading H1P. An electromagnet providing a large volume of highly homogeneous magnetic field comprises two spaced polepieces 26, 28 of very low reluctance, a pair of parallel yoke pieces 32, (30) and a plurality of current loops 34, 36 wound around each yoke piece wherein a longitudinal cross-section through the loops is a rectangle of constant height equal to the perpendicular distance between the polepieces, wherein the current density J at any point on a line perpendicular to the polepieces is such that Jx is constant, Jy is constant and Jz is zero where the z axis is along the line and wherein the ampereturns of the loop are equal and opposite. Each coil 34, 36 may be surrounded by tubing 40 embedded in resin 42 to effect cooling. It is preferred that the width of plates 26 and 28 be approximately twice the length of the plates and that the length be approximately equal to the overall height of the magnet. In another embodiment (Fig. 5, not shown) an external leakage reluctance path (46) is provided in the form of a loop connected to polepieces 26 and 28 which has a winding (44) having less ampereturns than the coils 34 and 36 and acting in the opposite sense. The electromagnets are made sufficiently long for the effects of the open ends to be negligible otherwise shims are provided to counteract the end effects. In another embodiment a magnet having a central region of zero field is disclosed (Figs. 6a and 6b, not shown). The central region is provided by having an oppositely wound coil lying within the turns of the current loops.
Patent GB-643297-A (GB)
Title: Balanced aircraft control surface
IPC: B64C13/00
Filed: 1948-05-03
Abstract: 643,297. Controlling aircraft. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., Sir W. G., and ELLIS, S. May 3, 1948, No. 12039. [Class 4] An aircraft control surface, of the kind having a shrouded balance formed of two portions articulated about an axis parallel to the control surface hinge axis and in which the two portions are substantially coplanar with the control surface when the latter is in the neutral position, has a mechanical connection with the remote or end portion of the balance, which end portion is supported solely by the other or main portion fast with the control surface, whereby the said end portion will be turned about the axis of articulation by movement of the control surface but in the opposite sense. In the embodiment shown, an aerofoil trailing edge 12 carries an aileron or other control surface 13 which is hinged about an axis 14. A balance member 15, 16 extends into a hollow 17 in the aerofoil. The part 15 is integral with the surface 13 and hinged to the part 16 about an axis 22. A link 25 extends through a slot 30 to connect an arm 24 integral with part 16 to. a planet carrier 26. A planet wheel 29 rotatably mounted on the carrier 26 engages one crown wheel 27 fast with the control surface and another fast with the aerofoil 12. Movement of the control surface causes a reduced movement in the opposite sense of the part 16 to allow a greater control surface movement than would be possible if the balance member 15, 16 was continuous. Specification 488,986 is referred to.
Patent GB-1380445-A (GB)
Title: Punching machines
IPC: B23D21/00
Filed: 1972-03-15
Abstract: 1380445 Punching U S AMADA Ltd 15 March 1972 [18 March 1971] 12104/72 Heading B3W A turret press for punching and/or notching an elongated workpiece W comprises a frame 10, a working station at which a striker 23 actuated by an hydraulic cylinder device 26 pivoted on a support arm 22 operates, a plurality of die sets 42 each removable as one unit spaced around the periphery of the turret 40 and selectively movable by power or manual rotation of the turret beneath the striker 23, an assembly 46 including rollers 54, 56, 58 for supporting a workpiece W, crank-operated linkage 62-72 for moving the workpiece support assembly 46 into and out of the press along an axis Y and a gauging stop 81 for use in the positioning of the workpiece along an axis X at right angles to the axis Y. The rollers 58 are adjustably mounted for accommodating workpieces of different widths. The gauging stop 81 is slidable longitudinally of the workpiece by means of rollers 84 86 engaging support plates 80 and 76 respectively, both mounted on the base-plate 50 which also supports the assembly 46. The face of the plate 76 nearer to the press acts as a gauge for the workpiece in the Y axis direction. A finger 92 on the stop 81 extends into the path of a workpiece fed lengthwise of the support assembly 46. Graduated tapes 88, Fig. 4, attached to the stop at one end and to spring-return reels at the other are used in conjunction with a fixed pointer 98 aligned with the striker 23 to determine the correct positioning of the workpiece for a working stroke of the striker. The stop is returned to a position aligned with the pointer 98, when the workpiece is removed, by cords 102, 102a mounted on spring-return reels 101, 101a.
Patent GB-982736-A (GB)
Title: Method of removing impurities from polymers and treating agent therefor
IPC: C08F6/02
Filed: 1963-03-28
Abstract: Impurities are removed from a polymer prepared from 1-olefines and/or conjugated diolefines, which has been prepared in the presence of a catalyst composition comprising at least one component having at least one halogen atom attached to a metal atom, by contacting said polymer with a dicarbonyl compound type chelating agent and an alkylene oxide.  The dicarbonyl compounds contain the group <FORM:0982736/C3/1> and are selected from compounds having the general formulae <FORM:0982736/C3/2> where R can be alkyl, cycloalkyl, aryl, aralkyl, alkaryl, alkylcycloalkyl or cycloalkylalkyl or the R's can be joined to form a cyclic structure; R1 can be hydrogen or R; R11 can be R or an OR1111 group; R111 is hydrogen or R and R1111 is R and the number of carbon atoms in R, R1, R11, R111 and R1111 is from 1 to 8. The alkylene oxides contain from 2 to 8 carbon atoms and have the general formula <FORM:0982736/C3/3> where R and R1 are hydrogen, alkyl, cycloalkyl or aryl groups or an epoxy-containing cyclic or alicyclic hydrocarbon group; and in which the R groups can be joined to form a carbocyclic group.  Extensive lists of polymers, polymerization catalysts, dicarbonyl compounds and alkylene oxides are given.  In a preferred embodiment a polyolefine polymer slurry which has been treated according to the invention is passed to a washing step where the solid polymer is further purified by contacting it countercurrently with a liquid hydrocarbon preferably the same olefine used in the polymerization.  In the examples polypropylene which has been prepared by polymerizing propylene using a catalyst comprising 3TiCl3.AlCl3 and diethylaluminium monochloride in the presence of hydrogen, is purified by contacting with propylene oxide and ethylacetoacetate or acetylacetone.
Patent GB-990571-A (GB)
Title: Improvements in or relating to a temperature control system, particularly for fluid-filled baths
Inventor: SANDERS WALTER HENRY RICHARD
IPC: G05D23/24
Filed: 1961-04-06
Abstract: 990,571. Electrical correspondence controls. TOWNSON & MERCER Ltd. July 2,1962 [April 6,1961],No. 12377/61. Heading G3R. An apparatus for controlling the temperature of a fluid comprises a bridge circuit in which two elements are thermosensitive resistors 1,2 so connected that their effect on bridge balance with a change in temperature is additive. The resistances 1, 2, may be of platinum or other pure metal wire, or high negative temperature coefficient semi-conductors. The bridge is adjusted by means of ganged potentiometers 5,6, so as to be approximately balanced at a desired fluid temperature and fine balance at this temperature, which may be indicated by a fluid immersed thermometer, is achieved by coarse and fine potentiometers 3,4 respectively. The ganged potentiometer control may be calibrated in degrees of temperature. The bridge output is amplified and used to switch a heater on and off.
Patent GB-1151812-A (GB)
Title: Improvements in Camera Systems.
Inventor: PLUMMER DEXTER ROBERT
IPC: G03B17/20
Filed: 1967-03-16
Abstract: 1,151,812. Electrical measurement and control. RANK ORGANISATION Ltd. March 8, 1968 [March 16, 1967], No.12456/67. Heading G1N. [Also in Division G2] In a camera system, means is provided to indicate when a first variable quantity, e.g. the local length of a zoom objective, reaches a limit which varies with variation of a second variable quantity, e.g. the aperture setting of the objective. It has been found that for a particular aperture setting of a lens system of a television camera, as its focal length is increased the effective aperture begins to decrease at a particular focal length which depends on the aperture setting. Thus the above means provides an indication of the occurrence of aperture reduction. In one embodiment the outputs of potentiometers 20, 24, Fig.3, whose sliders are positioned by servomotors 10, 12 according to the aperture setting and focal length respectively of lens system 2, are fed to two moving coil movements of pointers 30, 32 of a meter 31. The pointers and meter scales are arranged so that the scales intersect at maximum aperture setting and focal length, the apex of the scale being provided with a shaded area 34 such that if the pointers intersect in this area it indicates that aperture reduction has occurred. The system may be used for manually or automatically increasing the image brightness. In a modification the pointers may be replaced by images projected on to a suitable screen for viewing by an operator. In a second embodiment, Fig.5, the outputs of the potentiometers 20, 24 are arranged to be functions of the aperture setting and focal length, the functions being so matched that the sum of the two outputs is constant at the onset of aperture reduction for all aperture and focal length settings. This sum from amplifier 40 is mixed at 42 with a sawtooth signal from generator 44 and compared at 46 with a D.C. reference level equal to the above constant voltage. The comparator produces an output as aperture reduction occurs which is used to energize a lamp 50 at first, intermittently, and, when aperture reduction has occurred, continuously. Alternatively the intensity of the lamp may be arranged to indicate the degree of aperture reduction. The indication so produced may be superimposed on the viewfinder or monitor of the television camera e.g. by use of a bundle of optical holes which directs light from the lamp on to the viewfinder or monitor screen or directly into the operator's eye.
Patent GB-811963-A (GB)
Title: Improvements in or relating to non-metallic ferromagnetic materials
IPC: C04B35/01
Filed: 1957-04-16
Abstract: 811,963. Magnetic compositions. DU PONT DE NEMOURS & CO., E. I. April 16, 1957 [June 15, 1956], No. 12472/57. Class 38 (2). A magnetic complex oxide, having a crystal structure of the ilmenite type has a composition corresponding substantially with the formula Co x Ni (1-x )MuO 3 , where x is between 0.01 and 0.99. This material may be used for coating magnetic tapes, forming permanent magnets and low-loss transformer cores, and in microwave attenuators, in gyrator elements, electrically operated switches and magnetic clutches. The compositions are made by heating MuO 2 , NiO and Co 3 O 4  to at least 500‹ C. under a pressure of 500 atmospheres, preferably 2000- 5000 atmospheres. The reaction may be carried out in a water-filled steel bomb in a corrosionresistant container, e.g. of platinum, having flexible walls or a piston fitting within cylindrical walls to permit transmission of the desired pressure. When reacted, the oxides may be dry or in water or aqueous solutions of inorganic acids such as sulphuric or hydrochloric, or of inorganic bases such as sodium, lithium and potassium. The reaction product may be ground, and the magnetic constituents removed by a magnet and purified by washing with cold concentrated hydrochloric acid and hot concentrated nitric acid to remove unreacted MnO 2  and NiO. The coercivity may be increased by cold working the product, e.g. by passage through a rubber mill. The flakes produced may be ground to a powder. Examples are given, starting with the three oxides in varying proportions, of the production of materials having Curie temperatures between 118‹ and 164‹ C. Specification 781,997 is referred to.