baber/WOPTO huggingface dataset:
Patent GB-434440-A (GB)
Title: Improvements in methods of, and means for, making tyres
IPC: B29D30/16
Filed: 1934-03-02
Abstract: 434,440. Moulding tyres. HERBERT, L., 9, Schielestrasse, Frankfort - on - Main, Germany. March 2, 1934, No. 6786. Convention date, March 2, 1933. [Class 87 (ii)] In making outer covers for pneumatic tyres, an endless band 1 formed of layers of cord band is radially gripped at its two edges 1<a> by simultaneously-acting gripping-means arranged in a circle and is pulled over a rounded core 5 to receive its final shape, all in one continuous operation. Drums 2 are arranged, one on each side of the core 5 and are axially displaced to operate levers 3 and a series of gripping tongs 6 arranged around the inside of the drums. The drums are first moved up to the core and the band wound flat on the core and drums. The drums are withdrawn and again moved forward so that the tongs 6 engage and grip the edges 1<a> as the drums are moved towards the core and pull them centrally due to the action of a guide 4 for a roller 4<a> on each lever 3. A pawl 10 engages a ring 11 to open the tongs on withdrawing the drums. The tongs are opened against springs 7<a> to engage the edges 1<a> by extensions 7 contacting with the insides of the drums. The core 5 serves as a heating-tube during subsequent moulding of the cover. The tongs of each series may be interconnected by rubber gripping-rings 8, 9.
Patent GB-213095-A (GB)
Title: Improvements in or relating to sporting guns rifles and the like
IPC: F41C23/06
Filed: 1923-03-09
Abstract: 213,095. Jacob, E. March 9, 1923. Stocks. - A movable butt-plate is carried by one or more tubes constituting pistons sliding in air chambers without the use of springs, means being provided for determining the supply of air to the chambers. As shown, the butt-plate B is carried by two tubes C connected together at the front by a plate D which forms a piston sliding in a chamber E. Behind the plate is a second chamber E<1>. Within the tubes C are smaller tubes F, F<1> adapted, respectively, to admit air to the chambers E, E'. Screw caps II prevent escape of air when the apparatus is in use.
Patent GB-1449784-A (GB)
Title: Method of and apparatus for manufacturing a contact lens
IPC: B24B13/00
Filed: 1975-02-18
Abstract: 1449784 Grinding lenses J H SMITH 18 Feb 1975 6797/75 Heading B3D A method of manufacturing a contact lens, the concave side of which has a central base curve 12 and a plurality of annular peripheral curves 28, 23, 20 successively outwardly of each other and respectively of increasing radius to form concentric annular meeting junctures 30, 29, 25, comprises providing a generally convex tool 36 having a circular portion 39 of greater diameter than the outermost junction 25 and of non-convex curvature, applying a polishing sheet 40 over the portion 39 and a surrounding portion 37 having a radius of curvature less than the curve 20, engaging the tool with the lens and effective relative rotation therebetween to smooth the juncture 25, and thereafter providing a second similar tool and smoothing the next juncture 29. As described, the lens has three peripheral curves 28, 23, 20 having radii of curvature R2 R3, R4, respectively, radius R2 being greater than the radius R1 of the base curve 12, and R4>R3> R2. The meeting points of the curves form the junctures 25, 29, 30. A tool 36 for smoothing the juncture 29 between the curves 20, 23 consists of a generally spherical front surface 37 on a shank 38 and a concave central portion 39 having a diameter slightly greater than that of the juncture 25. A polishing sheet 40 of silk, moleskin, plastic tape or other resilient film or sheet, is secured to the tool and bridges the portion 39. The lens is mounted on a holder 35 and relative rotation is effected between the lens and tool so that the polishing sheet engages and smooths the juncture 25. Other similar tools are used for smoothing the junctures 29, 30. In another embodiment, the central portion 39 of the tool is substantially planar, the sheet 40 thus being positively supported. In a further embodiment, the convex surface 37b, Fig. 4, of the tool is covered by an annular inner sheet 41b and the polishing sheet 40b bridge the central portion 39b.
Patent GB-218705-A (GB)
Title: Improvements in or relating to adding machines
IPC: G06C11/00
Filed: 1923-03-09
Abstract: 218,705. Puttemans, H. A., and PerpÞte, G. V. L. March 9, 1923. Adding-apparatus with printing-mechanism. -The itemprinting wheels, receiving differential settings from the keys, have their type numerals arranged to form tooth spaces between them so that the wheels may print and also gear, preferably directly, with the totalizing-counter wheels.
Patent GB-547094-A (GB)
Title: An improvement relating to compression ignition internal combustion engines
IPC: F02D1/00
Filed: 1941-05-29
Abstract: 547,094. Fuel-injection pumps. O'CONNOR, H. M. May 29, 1941, No. 6904. [Class 102 (i)] [Also in Group XXVII] A fuel-injection pump is driven by a tapered cam which is adjustable axially along the crankshaft by a governor in accordance with the speed or load of the engine, the point on the crank circle at which injection commences is maintained constant by giving the cam an angular adjustment as well, so as to maintain constant 'the clearance between the cam and the part actuated thereby. The cam F adjusted along the crankshaft L is also moved angularly the required amount by means of an inclined key H and key K.
Patent GB-1183182-A (GB)
Title: Improvements in and relating to Variable Path-Length Spectroscopic Cells
Inventor: TADAYON JAMAL
IPC: G01N21/03
Filed: 1966-02-17
Abstract: 1,183,182. Spectroscopic apparatus. BECKMAN R. I. I. C. Ltd. May 17, 1967 (Feb.17, 1966], No.7089/66. Heading G2J. In a variable path-length spectroscopic cell for liquid samples, two housings 1 and 2 in which windows 9, 14 are mounted may be axially adjusted by the screw threaded engagement of tubular extensions 4 and 6 to vary the space between the windows which receives the test liquid, backlash being prevented by deforming the outer extension 4 using screws 20 extending through a sleeve 19 surrounding that extension. A vernier scale is marked on sleeve 19, and is calibrated by measuring the spacing of the windows interferometrically and setting the sleeve at the vernier zero after slackening screws 10 from their backlash free position. Liquid is introduced through ports such as 23, a liquid-tight seal being provided by soft metal rings 13 and 18.
Patent GB-373311-A (GB)
Title: Improvements in or relating to weft-replenishing looms for weaving
IPC: D03D45/20
Filed: 1931-03-07
Abstract: 373,311. Automatic weft replenishing mechanism for underpick looms. BRITISH NORTHROP LOOM CO., Ltd. and HOLLINS, D. M., Daisyfield, Blackburn. March 7, 1931, No. 7115. [Class 142 (iii).] Shuttles, changing bobbins and the like in, automatically.-Means for converting an under pick loom to an automatic weft replenishing loom comprises a stand or bracket a, adapted to be secured to the end frame of the loom and carrying a rotary magazine, a bobbin transferrer c, a shuttle feeler t and, if desired, a shuttle positioning member. The stand also carries means to cause actuation of the transferrer and rotation of the magazine and means to actuate a weft cutter, the whole of the instrumentalities being operated by a single connector s from a cam on a rotating shaft of the loom. Indication of weft exhaustion, by weft feeler mechanism at the opposite side of the loom, is transmitted through an electromagnet p<2> which rocks a lever o and permits a lug n<1> of a pivoted lever n to be withdrawn from a latch m pivotally mounted on a sliding member i. Removal of the lug n<1> permits the latch m to drop into engagement with one arm of a rocking lever r, whereupon the slide i is moved and the forked end of a pivotally mounted lever h, connected therewith, is raised to position a dog f in front of a bunter g on the lay which operates the transfer hammer. When the shuttle feeler t is engaged by an improperly positioned shuttle, the slide i is arrested before the end of its normal stroke and transfer does not take place, the spring s<1> and sliding connection r<2> permitting the rod s to continue its stroke. The shuttle box is modified to facilitate transfer and ejection of the bobbins and means are provided on the magazine for controlling the weft ends.
Patent GB-1113363-A (GB)
Title: Process for the production of chlorinated polyvinylchlorides
Inventor: BUENING ROBERT
IPC: C08F8/20
Filed: 1967-02-14
Abstract: Chlorinated tactic polyvinylchloride which is soluble in acetone is obtained by chlorination in the presence of an organic solvent at 90-130 DEG  C. until a chlorine content of 63.9-66.5% by wt. is reached.  The base polymer preferably has a degree of syndiotacticity of 56-85% and a K value of 50-80.  In the example the solvent used is 1,1,2,2-tetrachloroethane.  Acetone solutions of the product are used as lacquers, for producing foils and filaments and as adhesives, e.g. for chlorinated P.V.C. hot water pipes.
Patent GB-188612-A (GB)
Title: Improvements in self-contained breathing apparatus for use in foul atmosphere
IPC: A62B7/00
Filed: 1921-10-10
Abstract: 188,612. Durham & Northumberland Collieries Fire & Rescue Brigade, Mills, F. P., North Midland Coal Owners' Rescue Stations Co., Ltd., and Brown, G. L. Oct. 10, 1921. Respiratory appliances.-A respiratory appliance has a breathing circuit constructed mainly of metal tubing with a single connection to the breathing-bag, and having flexible connections to the mouthpiece. Non-return valves d, e of the rubber-disc type are fitted as inspiratory and expiratory valves respectively, and a third valve b<6> of this type is carried between the purifier f and the air or oxygen supply a*. The tube b from the purifier f receives fresh air or oxygen from the supply a*, and this air passes to the breathing- bag c and also through the inspiratory valve d to the mouthpiece h<2>. The mouthpiece and noseclip i<3> are attached to cheek-plates i by slotted plates i<2> on flexible straps i<1>, a locking strap i<6> finally securing the device against displacement. The exhaled air passes through the valve e to the purifier, a relief valve g being placed in this limb b<1> of 'the tubing. The breathing-bag c is protected by U-shaped metal plates attached to a canvas cover c<2>, and is thus kept from being deflated should the wearer lie face-downwards. Blocking pieces b<4>, b<5> are placed in the tubes to divide the circuit. The non-return valves d, e, b<6> are constructed as shown in Fig. 4, a perforated disc of thick rubber d' being riveted centrally to a thin rubber disc d<5> covering the holes. The disc d<5> is larger than the face of the lower valve-box member d' so as to permit action if incorrectlv placed. The relief-valve g, shown in detail in Fig. 8, consists of a body g<1> into which is screwed a caged cup g<2> provided with a locking-ring g<3>. Within the cup is a spring g<6> which keeps a disc g<4> normally pressed on its seating g<5> in the body; pins g<7> are provided to prevent the disc tilting. A detachable cap, shown dotted, is used to seal off the valve for testing purposes.
Patent GB-1504665-A (GB)
Title: Coupling element for sliding clasp fastener and method of making the same
IPC: A44B19/06
Filed: 1976-02-24
Abstract: 1504665 Making sliding clasp fasteners; shearing YOSHIDA KOGYO KK 24 Feb 1976 [27 Feb 1975 6 March 1975] 07182/76 Headings B3A and B3W [Also in Division E2] In a sliding clasp fastener having coupling elements 10 for individual attachment to the stringer tapes, each element has a head 11 of uniform thickness with a coupling projection 11a, and tape clamping legs 12 extending from the head, each leg having an inner flat surface 14 and an outer convex surface 15, and each leg being transversely tapered inwardly from surface 15 to surface 14 to give a trapeziumshaped cross-section. The elements 10 are successively stamped out of a metal web 16 with a flat central portion 17 and outer portions 18 of a thickness tapering into portion 17. Punch 21 and die 22 first form projection 11a, while the peripheral form of element 10 is formed by punch 26 and die 27, the tapered cross-section of web 16 ensuring that metal is cut progressively with reduced wear on cutter edges 33, 35.
Patent GB-895576-A (GB)
Title: Gyroscopic compass
Inventor: JOFEH MARCUS LIONEL
IPC: G01C19/36
Filed: 1958-03-06
Abstract: 895,576. Measuring electrically. SPERRY GYROSCOPE CO., Ltd. Jan. 23, 1959 [March 6, 1958], No. 7189/58. Class 40 (1). In a gyromagnetic compass in which a gyroscope is precessed to reduce any angular discrepancy between the indication of the gyroscope and a reference direction provided by a magnetic compass or flux valve, the control signal to precess the gyroscope is passed through a network so that, for a constant angular deviation, the initial rate of precession is smaller than the final rate. In Fig. 1, angular discrepancies between the indication of a flux valve 2 and gyroscope 1 produce a signal in the pick-up coil of 3, which are phase-detected by 4, passed through network 5 and amplifier 6 to precess the gyroscope to reduce the angular discrepancy. Network 5 is of the form shown in Fig. 2A and comprises an input integrating network 8, 9 and 10, of fairly short time constant, rectifiers, 17 and 18, to limit the maximum signal, and a further integrating network 11, 12, 13 and 14, of much longer time constant feeding amplifier 6. The component values as given in the Specification, are said to give a final precession rate of about twice the initial rate after about five minutes. A modification, Fig. 3 (not shown), is identical with Fig. 1 except that the coupling between the gyroscope and the pick-up coil of 3 is by selsyn link instead of direct as in Fig. 1.
Patent GB-777805-A (GB)
Title: Improvements in or relating to television receivers
Inventor: COPE JOHN EDWARD
IPC: F02K1/60
Filed: 1953-12-30
Abstract: 777,805. Automatic gain control. PYE, Ltd. Jan. 15, 1954 [Dec. 30, 1953], No. 7192/56. Divided out of 777,801. Drawings to Specification. Class 40(5) The subject-matter of this Specification is included in that described in Specification 777,801, but the claims differ. Specification 777,804 also is referred to.
Patent GB-830779-A (GB)
Title: Improvements relating to hydrodynamic clutches
IPC: F16D33/08
Filed: 1957-09-09
Abstract: 830,779. Hydrodynamic couplings. DAIMLER-BENZ A.G. Sept. 9, 1957 (Sept. 8, 1956], No. 7193/59. Divided out of 826,296. Class 69 (2). A turbo coupling comprises pumps 30 provided in a housing 12 which embodies a V- pulley 11 so that it can be driven by a belt. A turbine 13 is fast with a sleeve 14 which is secured to a fan 8, and the coupling is assembled by sliding the parts seriatim on to a stationary stub journal 10. Liquid is supplied through a bore 28 in journal 10 to a chamber 59 and thence through bearings 47, 14a on which the turbine sleeve 14 is supported to the working circuit. Liquid leaves the working circuit through orifices 17 in stationary scoop tubes 16 and thence through a bore 29 to the exterior of the coupling. The turbine may be formed by injection moulding, and a part 12a of the housing may also be produced by injection moulding, the V-pulley being embodied during moulding. A cover part 12b completing the housing is retained in position by a locking ring 42.
Patent GB-802750-A (GB)
Title: Improvements in or relating to methods of and apparatus for handling tubular knitted fabrics
IPC: D06C29/00
Filed: 1956-03-07
Abstract: 802,750. Finishing fabrics. WOLSEY, Ltd., YUILL, D. M., and GRAHAM, D. R. Dec. 31, 1956 [March 7, 1956], No. 7227/56. Class 42 (1). Wale spirality is eliminated from a tubular knitted fabric 11, Fig. 1, by a rotary guider member 13 disposed so as to cause the fabric to rotate as it passes over a stretching device 20. The member 13 is in the form of a wheel with its axis inclined to the direction of movement of the fabric and its circumference provided with pins or bristles 17 which may be bent at an angle to the wheel radii. A pair of driven friction rollers 9 each co-operate with a pair of idler rollers to grip the fabric above a trunk 8 in which a spindle 24 carrying the device 20 may be freely journalled. The device consists of a circular axle 21, or a number of curved axles, on which a number of angularly spaced bobbins 22 or rollers, such as rubber covered roller skate ball-bearing wheels, are journalled. The axle or axles are supported from the spindle 24 by a spider having spokes which may be made adjustable by connection to a sleeve 29, Fig. 4. Air is blown into the fabric and passes downwardly until it reaches the unstretched portion of the fabric where it passes outwardly into the ambient air tending to unwind the fabric which is carried by a bin 1 rotatably mounted on anti-friction bearings. The inclination of the member 13 to the vertical and of its supporting arm 14 to the horizontal may be adjusted.
Patent GB-456277-A (GB)
Title: Improvements in or relating to hydraulic power transmission apparatus
IPC: F16H61/52
Filed: 1935-03-08
Abstract: 456,277. Hydraulic transmission of power. SALERNI, P. M., 23, Carlton House Terrace, St. James's, Westminster. March 8, 1935, Nos. 7332 and 11885. [Class 69 (ii)] In a hydraulic torque converter comprising an impeller, a turbine and a reaction member, the reaction vanes or parts thereof are capable of being moved towards or away from the axis of rotation of the converter. The reaction vanes 20, Fig. 1, are preferably constructed as described in Specification 456,276 and are slidably mounted on pillars 21 of streamline section, being movable from a slidable collar 26 by bell-crank levers 24. The outer ends of the vanes have each an extension 27, Fig. 5, alternate extensions having arms 28 projecting into slots in intervening extensions. When the vanes are in operative position in the circuit, the extensions adjoin as shown in Fig. 4 to form the outer wall of the passages between the vanes. Similar extensions, if desired, may form the inner wall. When the vanes are moved outwards into inoperative position, they lie within a shrouding member 31 carried by the turbine 17. The vanes may be moved at will or automatically e.g. by hydraulic pressure, and/or spring means and/or by centrifugal force acting on suitable movable members. In the form shown in Fig. 1, operated by differential liquid pressure created within the apparatus as described in Specification 444,171, the sleeve 26 is provided with a piston 34, acted on by a spring 34e, and the space 34c Fig. 12, communicates through a port 34d with the hydraulic circuit near the impeller inlet. When the pressure in the hub is higher than that at the impeller inlet, the piston is caused to move the vanes into the circuit ; at the same time pawls 35 engage dogs on a fixed member 37. The vanes may be manually actuated by means comprising a sleeve 40 helically splined in the member 37, and having dogs 42 slidably engaging dogs 43 on a member 44, moved angularly by a Bowden wire connection 45. The passages between the vanes of all members may be as described in Specification 456,306, and the impeller may be as described in Specification 436,740. Specification 425,538 also is referred to.
Patent GB-178668-A (GB)
Title: Improvements in self regulating dynamo-electric machines
IPC: H02K23/20
Filed: 1921-03-08
Abstract: 178,668. Holt, W., and Brolt, Ltd. March 8, 1921. Brush-holders; exciting.-To enable the maximum current output of a selfregulating dynamo to be varied, two or more brushes are used in place of a single supplementary brush, and a switch is provided for connecting one end of the field-magnet winding to one or more of the supplementary brushes. Fig. 3 shows the invention as applied to a three-brush machine; one end of the field-magnet winding c is connected to a main brush b while the other end may be connected by a switch f to one or other or to both of the supplementary brushes e, e', Another type of machine is shown in Fig. 4. The brushes e, e<1>, may be adjusted relatively to one another by constructing the brush-holder in two parts, as shown in Fig. 5. The main part g carries the main brushes a, b, the supplementary brush d, and the supplementary brush e, while the other part g' carries the supplementary brush e<1>. The part g' is mounted upon and insulated from the part g and is adjusted angularly thereon by the use of bolts h entering slots j.
Patent GB-810404-A (GB)
Title: Improvements in or relating to methods and apparatus for the manufacture of seamless flexible containers
IPC: B29C70/74
Filed: 1957-03-06
Abstract: 810,404. Moulding seamless flexible containers. LEMFORDER METALLWARENGESELLSCHAFT. March 6, 1957 [March 22, 1956], No. 7496/57. Class 87(2). A seamless flexible container having embedded in one wall a member 9 through which extends a conduit, is made with apparatus comprising a thin-walled hollow core B to which the above member 9 is secured, access to the interior of the core being through the conduit only, and an outer shell A having an aperture. The arrangement is such that the member 9 can be secured in the aperture so as to seal it. The core B is located in, and spaced from the walls of, the shell A. Plastic material, e.g. polyurethane resin, is poured into the space between the core and the inner surface of the shell imtil the core is completely covered, the apparatus is heated, e.g. to 100-120C., to harden the plastic, the shell removed from the cast container, and the core inside the container demolished, e.g. by collapsing it from outside or by expanding it. The mould may be heated to 160C. before the plastic is poured in. The core B is made of thin metal foil, e.g. brass foil, of such a thickness that it will collapse when subjected to a pressure of more than 1 atmosphere. The shell A consists of two parts, an open-ended tubular-shaped upper portion 1 and a cup-shaped bottom 2. The joint between the two portions coincides with the axes of symmetry of the member 9 and a protuberance C on the shell A. The protuberance C consists of halves 4 and 5 which are welded to the upper and lower portions 1, 2 respectively. The inside surfaces of the shell and protuberance and the outside surface of the core B are greased in order to prevent the plastic from adhering to these parts. The outside of the member 9, which has previously been soldered to the core, is sandblasted on those parts which will be encased in plastic and is then treated with an isocyanate adhesive. Spacers may be inserted into the upper part of the mould but are removed before the plastic reaches their level. Preferably the plastic used has a polyurethane base produced from a linear aliphatic hydroxyl polyester and an excess of diisocyanate. The resulting product is mixed. with activators, e.g. 0-01 to 0-001 per cent. of alkaline salts and/or aryl alkyl sulphonates and with a mixture of divalent and polyvalent alcohol. The plastic is allowed to cross-link in the apparatus during casting.