baber/WOPTO huggingface dataset:
Patent GB-1180194-A (GB)
Title: Method for Preparing a Stencil
Inventor: MAYAUD EDITH ELLEN
IPC: H01J29/18
Filed: 1968-03-04
Abstract: 1,180,194. Coating. R.C.A. CORP. 4 March, 1968 [29 March, 1967], No. 10369/68. Heading B2K. [Also in Division H1] A method of producing a stencil comprises introducing into a film of material desired pattern of soluble and insoluble regions with intermediate regions progressively varying in solubility, removing the regions of greatest solubility and progressively dissolving and removing the intermediate regions until the insoluble regions are of a desired size. One application of the method is the production of a colour television screen, wherein the faceplate of the tube is coated with a film of dichromated polyvinyl alcohol and exposed to ultra-violet light through a shadow mask. This produces a dot pattern of insoluble regions, each dot being surrounded by an area of progressively more soluble material in the penumbra of the dot. The screen may now be flushed with a 3% H 2 O 2  solution which removes the unexposed areas of film and part of the partly exposed areas to leave dots of the required size. Alternatively the unexposed areas of film may be removed by water and a 7% H 2 O 2  solution applied to reduce the size of the remaining dots as the required. A film of graphite is now deposited over the whole screen after which the screen is treated with a 35% H 2 O 2  solution which dissolves the hardened polyvinyl alcohol dots leaving a pattern of graphite filling the areas which were not covered by the dots. The original dot areas are then coated with fluorescent materials and a reflective metal layer is applied over the whole screen.
Patent GB-171354-A (GB)
Title: Improvements in and relating to machines for stippling paper and like purposes
Filed: 1921-04-08
Abstract: 171,354. Lloyd Co., Inc., W. H. S., and Hampson, C. G., (Assignees of Stachowski, J. F.). Nov. 11, 1920, [Convention date]. Stippling coated paper and the like.- In a machine for stippling coated paper and other materials, a sheet or web of the material is conveyed beneath a transversely-reciprocating brush 13 by a travelling band 15 beneath which is a vertically-reciprocating table 16. The table is carried by brackets 20 actuated by adjustable crank-rods 23 and a revolving shaft 25. The brush is mounted on bars 29 carried by brackets 30, the height of which is adjusted by means of a hand-wheel 35 and bevel gearing, and is operated by a crank-shaft 37 and rod 36.
Patent GB-309083-A (GB)
Title: Improvements in ferroconcrete beams and floors
IPC: E04B5/06
Filed: 1929-04-04
Abstract: 309,083. Schlagintweit, F. April 4, 1928, [Convention date]. Girders; floors.- Ferroconcrete girders of I section placed side by side are provided' on one side with a thickened upper flange rabbeted to form a bracket g to engage the adjacent joist, the lower flanges merely abutting.
Patent GB-885493-A (GB)
Title: Improvements relating to colour television
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: H04N11/14
Filed: 1957-04-01
Abstract: 885,493. Television. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 1, 1958 [April 1, 1957]. No. 10557/57. Drawings to Specification. Class 40(3). In a colour television system utilizing a brightness signal having a composition consistent with constant luminance conditions when employed in conjunction with a colour signal the phase and amplitude of which represent hue and saturation respectively, the colour signal is such that its amplitude for white is different from zero. A signal of this type is represented by the expression Ec= 1/EY [0.30ER cos (wt + 120‹) + 0.59EG cos wt + 0.11EB cos (wt -120‹)] and this is employed with a brightness signal (EY) 1/γ =   (0.30ER + 0.59EG + 0.11EB) 1/γ. Such a com-   posite signal may be applied directly to a single gun type of colour-picture reproducing tube, it being necessary, however, to make the efficiences of the different colour phosphors such that simultaneous excitations of the red, green and blue phosphors in the ratio 0.30:0.59:0.11 produce white. Since the colour signal is not proportional to brightness the colour signal corresponding to white is of constant value. Specifications 863,604, 871,367 and 880,517 are referred to.
Patent GB-760325-A (GB)
Title: Improvements in or relating to stamp pads and inking rollers
Filed: 1953-04-17
Abstract: To provide sheets of sponge rubber or rubbery synthetic polymer for use as the ink-impregnated elements of stamp pads or ink rollers (see Group XVI), and having a surface through which many closely-spaced fine continuous capillaries pass to the body of the sheet, latex or synthetic polymer foam is cast on a reticulated base such as rayon fabric, polyamide fibre or wire mesh, and the air in the base is allowed to diffuse into the surface of the foam.  A mix of aqueous dispersions of rubber latex (60 per cent total solids content) 100, sulphur 2,5, zinc oxide 1, accelerator 1, ammonium oleate 0,5 (pts. by wt.) may be foamed, and coagulant added such as 20-40 cc. of a 10 per cent solution of ammonium chloride per kg. of foam; this is cast on a 1,000 mesh per sq. cm. wire screen, the whole being heated on a hotplate to 80 DEG C. to assist the air diffusion.  After vulcanization the sheet is washed and dried.
Patent GB-1348473-A (GB)
Title: Liquid filtration apparatus
IPC: B01D29/11
Filed: 1972-03-07
Abstract: 1348473 Filtering apparatus KARL BRIEDEN & CO 7 March 1972 [8 March 1971] 10650/72 Heading B1D Liquid filtering apparatus comprises a rotary turntable 6 separating inlet and outlet chambers 15 and 16 of a housing and having circumferentially spaced apertures 10 each accommodating a filter element 11, rotation of the turntable bringing each element 11 in turn into communication with a discharge nozzle 17, spring-loaded against the underside of the turntable and enabling the pressure in chamber 16 to backflush the element to discharge solids through outlet (19) (Fig. 2, not shown), which may incorporate a quick-acting valve. Elements 11 may be hollow cylinders of sintered material, but as shown each element has a perforate wall with individual filtering inserts 14 retained in each perforation (Fig. 6) by a circlip. Turntable 6 makes a sliding seal with housing flange 8, involving a sealing ring 40 or mating frusto-conical surfaces. Shaft 7 may be advanced axially by nut 27 to tighten the seal. In Fig. 1, motor 21 rotates the turntable stepwise through a Geneva mechanism. In Fig. 5 (not shown) the turntable is rotated by a ram-powered pawl and ratchet.
Patent GB-351594-A (GB)
Title: Improvements in dye beams
IPC: D06B23/04
Filed: 1930-04-04
Abstract: <PICT:0351594/IV/1> <PICT:0351594/IV/2> In dye beams of the type in which the yarn is wound on a perforated or slotted drum A, staves or rods B extending longitudinally between the end flanges A1 of the beam are provided to keep the yarn out of contact with the surface of the drum and thus obtain more even dyeing.  In Fig. 1 two rods B, which may be of circular, oval, diamond, or other cross section are provided at intervals along their length with discs A2 serving as supports.  In another arrangement the necessity for such support is obviated by making the rods lie close to the surface of the drum.  In the form shown in Fig. 5 the staves B, each of which extends only a part of the length of the beam, are formed from sheet metal bent over along one edge, the other edge being fixed to the drum.  The staves or rods may also be arranged to extend spirally between the end flanges of the beam.  To enable the beams to be employed for warping, friction pulleys C may be bolted on or made integral with the ends of the beam to be rotated by frictional contact with the pulley of the warping drum.
Patent GB-106672-A (GB)
IPC: C14B5/00
Abstract: 106,672. Bates, A., and British United Shoe Machinery Co. June 1, 1916. Cutting-out apparatus.-Relates to radial-arm clicking presses for cutting out uppers, linings, fittings. or bottom stock for boots and shoes. in order to deal with wide material, two or more presses 2, 3 are associated with a wide bed 1 and arranged so that their areas of operation overlap. The material is clamped on the bed between a fixed member 16, supported in brackets 20, 22 which are slotted for adjustment on the clamping-bolts 56, and a movable member 18 on a carrier 40, which is controlled by a spring and treadle. Specifications 22023/05, 27833/09, and 25274/12 are referred to.
Patent GB-141749-A (GB)
Title: Improvements in and relating to tyres
IPC: B60C7/12
Filed: 1920-04-16
Abstract: 141,749. Campi, L. M. April 16, 1919, [Convention date]. Non-metallic elastic bodies and cores.-The felloe a<1> of the wheel is convex at a<4> and has secured to it two annular sections c, c<1> of metal by clamps d and bolts d<1>. Grooves e, f in the section contain rubber tyres i with central bores i<1> upon which a solid tyre k bears. The grooves are so shaped as to leave crescent-shaped spaces e<1> at the ends to allow lateral expansion when the tyre is under load. The tyre bears directly on the tubes in the grooves f, and on those in the grooves c through the medium of projections k<4>. Projections i<2>, i<3> co-operating with corresponding recesses prevent displacement of the tubes. The tyre moves radially between extensions c<3> of the castings, leaving an air-space c<5>.
Patent GB-888254-A (GB)
Title: Photoelectric exposure meter with needle deflection indicator
IPC: G01J1/42
Filed: 1958-04-02
Abstract: 888,254. Indicating-apparatus. AGFA A.G. April 2, 1958 [April 6, 1957], No. 10680/58. Class 106 (4). [Also in Group XX] In the photo-elec-  tric exposure meter described in Specification 833,954, the transmission mechanism between an operating disc 14 and needle deflection indicator 11  comprises a lever 17 pivoted on a pin 18 fixed to a plate 6. A cam surface 21 formed on the disc 14 engages a pin 19 carried by the lever 17 which also carries a pin 20 working in a slot 23 of a plate 9 rigidly secured to the indicator 11. The pivot of the plate 9 is carried by the plate 6 and is offset from the pivot of the disc 14, but may be formed in one piece therewith. The pin 10 connecting the plate 9 and indicator 11 works in a slot in the plate 6 and a spring 24 secured to the plate 9 ensures working engagement between the pin 19 and cam surface 21.
Patent GB-743599-A (GB)
Title: Improvements in or relating to apparatus and method of fabricating metallic parts
IPC: B21D51/10
Filed: 1953-04-20
Abstract: 743,599. Embossing; breaking. STANDARD PRESSED STEEL CO. April 20, 1953 [Sept. 27,1952], No. 10776/53. Classes 83 (2) and 83(4). Making tubular pins.-In a method of making metal articles such as tubular pins from initially flat blanks and in a connected strip for subsequent separation by breaking a blank 10, Fig. 5, is first formed with transverse steps 151, 35 by a punch and anvil and the steps are subsequently flattened during following skelping &c. operations to form a slit 21, Fig. 7, in the cross-section where the break is to occur. In forming pins with chamfers at each end both the punch 11, Fig. 3 and anvil 12 have steps 15, 33 for forming the steps 15<SP>1</SP>, 35 and the anvil has chamfered faces 16<SP>1</SP>, 34. In another example in which only one end of each pin is to be chamfered the anvil 11 has the step omitted and the resultant blank has a chamfer 16<SP>1</SP>, Fig. 15, on the raised side of the step 151.
Patent GB-1448395-A (GB)
Title: Sampling system and selector valve therefor
IPC: F16K11/076
Filed: 1974-03-11
Abstract: 1448395 Valves OCEANETICS Inc 11 March 1974 [12 March 1973] 10782/74 Heading F2V A valve in or for a gas or liquid sampling system, comprises a number of inlets 12.1 and a single outlet 16.1. A manually or automatically operable rotary selector 14.1 can be positioned to communicate any one of the inlets with the outlet via a passage 14.2, the remaining inlets all communicating with a common chamber 30. Moreover, each inlet contains a respective flow controller, e.g. an adjustable screw valve 12.2. In use, the inlets are each connected with a respective compartment or area containing fluid to be analysed, e.g. compartments or areas of a submarine, building or chemical process, and the outlet is connected to an analysis instrument. The screw valves 12.2 are adjusted to provide equal supplies of fluid from the compartments in spite of their different distances from the inlets. A vacuum pump connected at tapping 31 draws the respective fluid from the compartments into the chamber so that the fluid is always present at each inlet ready for immediate flow to the analysis instrument when connected thereto by the selector. O-rings 20 and a plastics seal 14.3 are provided.
Patent GB-1217496-A (GB)
Title: Improvements in and relating to fluid logic elements
Inventor: BAINBRIDGE WILFRED NICHOLAS
IPC: F15C3/02
Filed: 1967-03-08
Abstract: 1,217,496. Fluid logic and switching circuits. AUTOMOTIVE PRODUCTS CO. Ltd. March 8, 1968 [March 8, 1967], No. 10865/67. Heading F1P. [Also in Divisions F2 and G4] A logic element comprises a body having a stepped bore with larger and smaller respective bore portions 14, 15 closed by end closure means 16, 17 and in which slides a spool 18 with lands 19, 20. The body has four ports 21 to 24 as shown, the port 24 communicating with port 22 when the spool is at its upper extreme position and with the port 23 when the spool is at its lower extreme position. Various combinations of inputs and outputs can be associated with the ports so that the element performs the AND, OR or INVERSE logic functions. For controlling a number of external operations in sequence, combinations of elements with circular cross-sections may be disposed in a block (25), Fig. 5 (not shown), with appropriately positional passages registering with the ports. Alternatively, a plurality of elements of rectangular cross-sections may be disposed side by side in a housing, Fig.6, the housing being formed of plates 25, 26 joined together with holes for connection to the ports of the elements and with pipes leading to couplings 36, Fig. 7 (not shown), for connection to external hydraul or pneumatic circuits. The assembly of elements may be formed as an integral unit made of metal or plastics. It may be formed in a plastics moulding and may be assembled from separately constructed half portions permanently secured together after assembly of the spools. Examples of operations capable of being controlled are: the landing gear sequence for an aircraft wheel and the unloading of liquid fuel from marine tankers. The latter sequence could be achieved by using electrical switch to operate solenoid valves but their use is sometimes precluded due to fire hazard.
Patent GB-183210-A (GB)
Title: Apparatus for treating chocolate masses and other materials
IPC: A23G1/14
Filed: 1921-04-14
Abstract: 183,210. Schildener, W. April 14, 1921. Stationary batch-mixers with reciprocating stirrers ; rotary batch-mixers.-Relates to apparatus for treating chocolate masses &c. The mass is moved to and fro in a circular heated container T by one or more rollers W and four turning-knives, of which three A, B, C are shown, attached to a toothed rim Z, are rotated about a vertical axis to push the mass not operated on by the roller W into the path thereof. The mass is thus alternately pushed into the path of the reciprocating body and by the latter into the path of the rotating bodies. An outlet O is provided. In a modfication, the container rotates and the devices A, B, C are stationary. The roller W may be replaced by a scoop-shaped device with a number of rollers.
Patent GB-179526-A (GB)
Title: Cable guide for cable drums
IPC: B66D1/36
Filed: 1922-04-18
Abstract: 179,526. Compagnie d'Entreprises Electro-MÚcaniques. May 6, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Laying or guiding ropes during winding and unwinding.-To lay or guide ropes on to winding- drums, a roller-carrying rope slide or guide 31 is reciprocated by cam mechanism 14 geared to the winding-drum 1. The linked parallelogram carrying the slide may be actuated by a cam-slot in a face-cam instead of by an edge-cam as shown in Fig. 1. Fig. 3 shows a construction in which the slide moves along guides 32 and is actuated by a lever 25 linked to an edge-cam 26. In a further modification, the link instead of being guided on the cam pivot as in Fig. 3, slides in separate guides on either side of the cam. In another modification, the cam actuates the lever 25 in one direction only and the return movement is performed by a spring.
Patent GB-1490776-A (GB)
Title: Manhole assemblies
IPC: E02D29/14
Filed: 1975-03-17
Abstract: 1490776 Manhole cover PONT-A-MOUSSON SA 17 March 1975 [22 May 1974] 10947/75 Heading E1G A manhole cover 1 rotatable within a frame 2 to lock it therein-e.g. by the interengagement of undisclosed lugs and rampshas a radial lug 11 which is pulled towards a frame anchorage 8 by a nut 6 on a threaded locking bar 5, whereby rotational loosening of the cover is prevented. The bar 5 can initially be used as an inching lever. In Figs. 1, 3 the lug 11 has an aperture 10 for a hooked locking bar 5 and enters a locking box 3 in the frame wall 4, the box 3 having an inclined anchorage wall 8 and a bottom opening 12 allowing access to the locking nut 6 from above or below the cover. In a modification, Figs. 5-7 (not shown), the aperture 10 is replaced by a cylindrical projection (15) extending radially from a shortened lug (11). Fig. 8 shows a modified locking box 3 having a bottom opening 20 and a top-shrouded T slot 18 opening into the underside of the frame, the slot 18 cooperating with a T-headed locking bar and nut 6 engaging a transversely-grooved radial lug 11. A cover may be provided for the locking box 3.
Patent GB-1092802-A (GB)
Title: Improvements in and relating to tube drawing
Inventor: RICHARDS SAMUEL HUGH
IPC: B21C1/02
Filed: 1964-03-16
Abstract: 1,092,802. Drawing tubes. MARSHALL RICHARDS MACHINE CO. Ltd. March 15, 1965 [March 16, 1964], No. 10961/64. Heading B3P. A tube drawing machine comprises a swift 1, a working platform 8 adjacent the swift and adapted to support a coil of tubing while an end of the coil is pointed, coil positioning means 10 upstream of the working platform and adapted to rotate a coil about the longitudinal axis of the coil so that when each coil eventually reaches the working platform the end 28 is correctly positioned for pointing and transferring means 11 downstream of the working platform and adapted to lift a prepared coil off the working platform and transfer it to the swift, said transferring means rotating the coil about its axis during transference so that the pointed end 28 of the coil is correctly oriented for easy feeding through the die 5 when the coil is placed on the swift. The coil positioning means 10 comprises a rotatable table 12 driven by a reversible motor 16. The transferring means comprises an arm 17 pivotally mounted on a carriage 18 which is vertically adjustable on a stanchion 19. A coil engaging frame assembly 20 is pivotally mounted on the arm 17 and is non-rotatably secured to a chain wheel 24. A second chain wheel is fixed to the carriage 18 and the two wheels are connected by an endless chain 26, so that when the arm 17 rotates the assembly 20 rotates in the opposite direction. The gear ratio is chosen so that when the arm 17 swings through 90 degrees as shown by the dotted lines in Fig. 1, the frame rotates through 150 degrees so that the tube end 28 which was aligned with the pointer 9 is suitably positioned to be drawn through an opening 29 and passed through the die 5.
Patent GB-539656-A (GB)
Title: Improvements in and relating to constant pressure gas turbines
IPC: F23R3/02
Filed: 1940-06-28
Abstract: 539,656. Generating combustion products under pressure. AKT.-GES. BROWN, BOVERIE, & CIE. June 28, 1940, No. 11007, Convention date, June 28, 1939. [Class 51 (i)] [Also in Group XXVI] Air from a compressor 1 passes through a combustion chamber 2 to a turbine 3 without substantial change of direction. The last blade rings of the compressor are such that the axial velocity of the air diminishes and the last blade rings of the turbine produce a rise in the axial velocity of the gases up to the air speed of the aircraft. Mixing chambers are provided between walls 16 and the constricted openings 18 secure the entry of the right amount of air. The mouths of the chambers are covered by grids 21 which prevent the combustion flame from spreading backward into the mixing chambers. The walls 16 may be axial as shown and, in that case, the air from the compressor is given an axial direction by one or two last rings of fixed blades. The walls 16 may be set obliquely to correspond with an oblique delivery from the compressor. Ribs reinforcing the combustion chamber serve as additional guide vanes for the gases.
Patent GB-987388-A (GB)
Title: Improvements in the driving transmission of auto-cycles with friction rollers
IPC: B62M9/00
Filed: 1964-03-17
Abstract: 987,388. Friction and ratchet clutches; clutch control. ATELIERS DE LA MOTOBECANE. March 17, 1964 [March 19, 1963], No. 11228/64. Headings F2C and F2L. An autocycle transmission comprises a freewheel clutch in series with a centrifugal clutch, together with a manual overriding clutch for use in starting the engine, the free-wheel clutch being operative when the engine-driven portion is effective. In the arrangement shown in Fig. 1 a friction roller 1 on a shaft 3 engages a tyre 2 and is driven by an engine belt 11 engaging a pulley 10 axially movable to bring a conical inner surface 9 into contact with tapered friction clutch elements 8 on a casing 4 secured to the roller shaft 3. The casing 4 and pulley 10 enclose the centrifugal and free-wheel clutches, the former comprising shoes 6 on pivots 12 carried by a disc 13, and the latter rollers 17 mounted between sleeves 14, 15 secured to members 13, 10 respectively. All three clutches are arranged in substantially transverse alignment, thus reducing the overall axial width of the assembly. The pulley 10 is moved axially to operate clutch members 8, 9 by rotating a screwed sleeve 21 on a fixed sleeve 28 by a Bowden cable 22. In the alternative form shown in Fig. 3 the friction drive roller 60 is mounted on the engine shaft 48 and is integral with the portion 42 of the manual clutch, the friction elements 41 of which are carried by a drum 40 axially movable by a lever 43. The centrifugal clutch members 51 are mounted on pivots 52 carried by the drum 40 and engage the friction surface of a second drum 54, the free-wheel members 57 being mounted between sleeves 56, 62 integral with drum 54 and roller 60 respectively.
Patent GB-244982-A (GB)
Title: Improvements in carpet sweepers
IPC: A47L11/33
Filed: 1925-04-30
Abstract: 244,982. Entwisle & Kenyon, Ltd., and Dickinson, T. April 30, 1925. Carpet-sweepers. - A carpetsweeper having the wheel axles carried by springs and projecting through holes in the ends of the sweeper casing is provided with flexible covers for the axle holes, the covers being attached to the axle and to the inside of the casing. As shown, a disc d of canvas, thin sheet rubber or other flexible material is provided with an eyelet d' adapted to fit around the axle c and with a stiffening ring d<2> affixed to the inside of the casing A. The diameter of the disc is greater than that of the ring to allow freedom of movement of the axle within the opening c<1>. The ring d<2> may be dispensed with, the disc being secured by cement or adhesive.