baber/WOPTO huggingface dataset:
Patent GB-243349-A (GB)
Title: Improvements in or relating to electrical means for transmitting pictures, light fluctuations and the like
IPC: H04N5/30
Filed: 1925-11-17
Abstract: 243,349. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Ranger, R. H.). Nov. 18, 1924. [Convention date]. Thermionic amplifiers. -In an arrangement for translating light fluctuations into corresponding electrical impulses as in copying telegraphy by the use of a photo-electric cell, the cell is caused to operate on the straight portion of its characteristic bv subjecting it to light of constant intensity in addition to the fluctuations, and means are provided for amplifying that portion of the output current from the cell which is due to the fluctuations. The cell p. Fig. 1, mounted in a light-tight casing H is subjected to illumination of constant intensity from a. source S<2> within the casing and to varying illumination through a. lens or opening L from successive small areas of the picture carried bv a drum D. The cell is in circuit with a battery 2 and a high resistance 3 of which one end is connected to the filaments of similar thermionic amplifying- valves 6, 6<1> and the other end through a bias battery 4 to the grid of the valve 6. The grid of the' valve 6<1> is connected through a bias battery 5 to the common filament lead, and the plates of tho valves 6, 6<1> are connected through similar high resistances 8, 9 respectively to the positive terminal of the common plate current source. The plate of valve 6 is also connected through the primary 14 of an audio frequency transformer to the plate of a third valve 10, and the plate of valve 6<1> is connected directly to the filament of valve 10. The grid circuit of this valve is provided with an oscillator 11 of audio or other readily amplifiable frequency. The secondary 15 of the transformer is connected across an amplifier 16 of which the out'put circuit includes a rectifier 18 and resistance 17. The whole forms a Wheatstone bridge arrangement of which the four arms are constituted by (1) plate circuit of valve 6 between a and b, (2) plate circuit of valve 6<1> between a and d, (3) resistance 8, (4) resistance 9. With the cell p illuminated only by the source S<2> adjusted so that the cell is on the lowest part B, Fig. 2, of the straight portion B, C of its characteristic, the bridge is balanced by adjustment of the batteries 4, 5, and any subsequent unbalancing due to illuminaltion from the picture results in flow of unidirectional pulsating current between band d through the transformer primary 14 and valve 10. This current produces audio-frequency impulses in the secondary 15 giving rise to direct current across the resistance 17.
Patent GB-324006-A (GB)
Title: Improvements in and relating to the manufacture of rubber articles
IPC: C08J5/02
Filed: 1928-10-11
Abstract: 324,006. Dunlop Rubber Co., Ltd., and Trobridge, G. W. Oct, 11, 1928. Indiarubber &c., colouring &c. - Coloured rubber goods are produced by providing a mould or former with a coating of an aqueous dispersion of rubber of one colour and then applying another coating of another colour, drying and vulcanizing. The first coating may be applied by painting, printing or spreading or a combination of these methods, while the second coat may be applied by dipping, spreading, or electrophoretic deposition. The aqueous dispersions, which may be prepared as described in Specification 290,313, may contain such added substances as factice, rubber waste, rubber reclaim, &c., as well as leather, dust, cork dust, fibres, metal dust, colloidal metals, and aldehyde resins. The mould or former may be provided with grooves or indentations or be embossed and the grooves or . indentations or the embossed parts filled or covered with at least one coloured dispersion and then be coated with one of another colour or such as to give a transparent effect, the whole being then dried and vulcanized. An example of a latex mix is given.
Patent GB-858726-A (GB)
Title: Improvements in and relating to machines for hot-forming bar stock
IPC: B21J7/14
Filed: 1958-09-12
Abstract: 858,726. Forging. GESELLSCHAFT FUR FERTIGUNGSTECHNIK UND MASCHINENBAU G.m.b.H. Sept. 12, 1958 [Sept. 14, 1957], No. 29252/58. Class 83 (4). A machine for hot forming bar stock comprises feeding means 46-49, Fig. 4, for the stock, electric induction heating means 89 through which the stock is fed, temperature responsive detecting means for detecting when the stock has reached a predetermined temperature and then starting the feed, and control means for causing dies 1 to act upon the stock and then retract therefrom. The bar stock is fed through the heater 89 and between opposed reciprocating forging dies 1 by hydraulically-actuated spring- biased pivoted gripping tongs 46, 48 mounted on a carriage 68 which is reciprocated by an hydraulic piston 65 connected thereto through an adjustable sleeve 67 which varies the feed stroke. When the stock has reached a predetermined forging temperature, a pair of pyrometers 96, Fig. 3 (not shown), close a relay circuit 98, Fig. 11 (not shown), which opens solenoid valves causing tongs 46, 48 to close on the stock and then piston 65 to feed it forwardly and bring the heated portion between the forging tools. Tongs 46, 48 are then opened and simultaneously stationary tongs 47, 49 are closed to hold the stock during forging. Similar reciprocable and stationary tongs 50-53, Fig. 3 (not shown), are provided at the rear of the machine, the reciprocable tongs being connected to piston 65. Carriage 68 and tongs 46, 48 then return to their initial position and may repeat the feed one or several times before forging takes place. Actuation of a limit switch 72 by carriage 68 causes solenoid valves to supply hydraulic fluid between opposed pistons 40, Fig. 1, which act through adjustable linkage 38, 37, 36 and cause work-holders 32 to close on to the bar and hold it between the dies 1. The holders 32 are liquid cooled and carry nozzles for spraying, cleaning and anti-sticking liquid on to the dies. The dies are removably mounted on water-cooled die holders 2 carried by reciprocable slides 3 actuated by eccentrics 5 on drive shafts 6. These shafts are eccentrically mounted in rotatably adjustable bushes which have gear teeth meshing with a central common gear 11, Fig. 6 (not shown), actuated by an adjustable rack 12 driven by an hydraulic piston in cylinder 14; movement of the rack is damped by a dashpot. Each slide 3 may carry a pre-forming and a finishing die. Actuation of limit switch 72 also causes rack 12 to move the continuously reciprocating dies inwardly to engage and forge the stock. After a delay determined by a timer, the tools are withdrawn by the rack and the work-holders 32 are then withdrawn. Limit switches 18, 44, 45 in the relay circuit are closed when the tools and work-holders are fully withdrawn and thus prevent premature feed. The feed mechanism and heater 89 are mounted on a withdrawable carriage 54 to facilitate their maintenance. The machine is mounted on trunnions 31 in pedestals 30.
Patent GB-1434449-A (GB)
Title: Shaped articles made of acrylonitrile polymers containing antistatic additives
IPC: C08L33/00
Filed: 1974-07-02
Abstract: 1434449 Antistatic polyacrylonitriles; polyether polyurethanes BAYER AG 2 July 1974 [7 July 1973] 29255/74 Headings C3P and C3R Polyether polyurethanes of formula where Z is R- or RNHCO-, R is an optionally substituted alkyl, cycloalkyl, aryl, aralkyl or alkaryl group, R<SP>1</SP> is a diisocyanate residue, p and n are integers of 5 to 50, q is 0 or 1, m is 0 or an integer of 1-10 with the proviso that when Z is R, m and q may each not be 0 and when Z is RNHCO- p and n must be the same are antistatic agents for acrylonitrile polymers. Polyether polyurethanes of the above formula when Z represents RNHCO- and q represents 1 are prepared by reacting polyethylene glycol with diisocyanates in a less than equivalent amount and then end capping with monoisocyanate. Exemplified reactants are 4,41-diisocyanates diphenyl methane, 1-isocyanatomethyl-5-isocyanato - 1,3,3 - trimethylcyclohexane, naphthylene-1,5-diisocyanate and stearyl isocyanate. Polyether polyurethanes wherein Z represents RNHCO- and q represents O are prepared by reacting a polyethylene glycol with a monoisocyanate. Exemplified reactants are methyl, isopropyl and stearyl isocyanates. Polyether polyurethanes wherein Z represents R are prepared by reacting polyethylene glycol with excess diisocyanate and then reacting the free isocyanate groups with a polyoxyethylated alcohol. Exemplified reactants are 4,41-diisocyanatodiphenyl methane and oxyethylated stearyl alcohol.
Patent GB-955074-A (GB)
Title: Improvements in or relating to composite metal products
Inventor: HARRIS GEOFFREY THOMAS
IPC: C21C5/52
Filed: 1959-08-27
Abstract: 955,074. Making composite articles; casting; welding. BIRMINGHAM SMALL ARMS CO. Ltd. Aug. 18, 1960 [Aug. 27, 1959], No. 29270/59. Headings B3A, B3F and B3R. Composite metal articles are made by casting in, around, or upon a first part or parts, a second part or parts by melting a consumable electrode. The article may be a transition piece for welding, Fig. 4, or a turbine rotor disc having a forged annular portion of austenitic steel and a cast-in central portion of ferritic steel. The casting may be subsequently worked as by machining, forging, rolling, extrusion &c. The consumable-electrode arc furnace may be operated under vacuum or in an inert atmosphere, or in air with a covering slag. The first part or parts may be pre-heated by a low current arc between the electrode and the part or parts, the current being subsequently increased to melt the electrode.
Patent GB-280214-A (GB)
Title: Method of and means for electrically controlling a sub-station from a remote main station
IPC: H02J13/00
Filed: 1927-11-02
Abstract: 280,214. Siemens & Halske Akt.-Ges. Nov. 3, 1926, [Convention date]. Drawings to Specification. Recording particular operations.-In a system for selectively controlling apparatus at a substation and transmitting to the main station the readings of measuring instruments at the substation through the intermediary of synchronously-operated distributors, the connections to the contacts of the distributor at the main station include polarized recording magnets, the pencils of which record continuously on a travelling sheet.
Patent GB-893837-A (GB)
Title: Improvements in or relating to glass working machines for the optical industry
IPC: B24B13/00
Filed: 1958-09-12
Abstract: 893,837. Grinding lenses. LOH, E., and LOH, K., [trading as LOH OFFENER HANDELSGESELLSCHAFT, WILHELM]. Sept. 12, 1958 [Sept. 12, 1957], No. 29312/58. Class 60. A machine for producing optical equipment comprises a spindle 17 having a workholder 16 for receiving and holding a workpiece, and an oscillatable and axially movable shaft 1 having at least one arm 2 carrying a suction pad 3 which is movable into engagement with a workpiece to transfer the workpiece from one station to another. At the end of a machining operation when a finished workpiece is held in the workholder 16 and workpieces to be machined are held in a magazine 14, a motor 4 is automatically operated to drive a worm and wheel 5 connected to a cam 6, the surface of which axially moves a shaft I carrying a pair or arms 2, each arm being provided with a pneumatic pad in the form of a sucker 3. A cam 9 driven by gears 7, 8 from a sleeve 6a integral with the cam 6 actuates a rod and fork 11 to withdraw the working spindle 17 carrying the workholder. The cam 6 is connected to a pair of cams 12 which co-operate with arms 13 on the shaft 1 to rock the arms 2 from a rest position, as shown in Fig. 4, to a position wherein the pads are aligned with a new workpiece in the magazine 14 and the finished workpiece in the workholder, an axial movement of the shaft then pressing the pads against the workpieces. The workholder is then opened by means of the cam 9 imparting a further movement to the rod and fork 11. Further rotation of the cams 12 rock the arms 2 through 90 degrees to the right to a position wherein the finished workpiece is removed from the pad by a stripper and the new workpiece aligned with the workholder, a final axial movement of the shaft moving the new workpiece into engagement with the workholder which is actuated by the cam 9, rod and fork 11 to clamp the workpiece. The arms 2 then return to the rest position and the motor 4 disconnects itself and starts the motor of the machine.
Patent GB-1042627-A (GB)
Title: Improvements in and relating to coating travelling webs
Inventor: DOBBIE DEREK JAMES
IPC: D06B15/09
Filed: 1964-07-17
Abstract: A method for coating a flexible travelling web with a liquid coating composition comprises coating a first side of the web, removing excess composition therefrom, coating the second side of the web, and removing excess coating therefrom by an air knife while the web is supported, first coated side downwards, on a cushion of gaseous sodium.  The coating is preferably applied by applicator rolls the excess coating being removed by an air knife.  The cushion of gaseous medium is preferably formed by means of a tube having several axially extending, circumferentially spaced rows of perforations through which the gas, e.g. air is pumped, Fig. 2 (not shown).  The coated web is then passed through a dryer, preferably heated by infra-red heaters, and wound in a roll.  The web may be paper, film of cellulosic material such as regenerated cellulose, cellulose esters and ethers, and other cellulosic derivatives or films of synthetic plastics materials such as polyethylene, polypropylene, polyamides, polyvinyl derivatives and the like.  The coating composition may comprise moisture-proof, heat-sealable compositions of aqueous dispersions of vinylidene chloride copolymers.
Patent GB-325193-A (GB)
Title: Improvements in or relating to gramophones and the synchronisation of gramophones and kinematograph machines
IPC: G03B31/00
Filed: 1928-10-11
Abstract: 325,193. Jeapes, W. C., and Jeapes, C. W. Oct. 11, 1928. Kinematograph apparatus. - A synchronized gramophone and kinematograph combination comprises a gramophone having the record 16, Fig. 1. supported, as by arms 21 and rollers 22, above and out of contact with the turntable 15. and a kinematograph projector having one or more feelers such as 62, 63, Fig. 5, adapted to bear against the edge of the film 56 and to be operated by notches 58 to control mechanism which effects relative vertical movement between the record and the turntable for starting and stopping the rotation of the record. Fig. 1 shows the arms 21 carried by a sleeve 23 which is raised and lowered by a lever 26 moved in one direction by solenoids 29 and the other direction bv solenoids 30. The solenoids are separately excited when the feelers enter appropriate notches in the film and thereby make contacts such as 65, 66 and complete circuits through wires 68, 69 connected to the contacts 34, 36, 37 on the gramophone. In the machine shown in Fig. 1, the needle 18 of the electric pick-up 17 remains in the stylus groove during rising and falling movements of the record, and the arm 26 in the position shown makes contacts 41, 42 leading to a loud speaker. In the form shown in Fig. 4, the arm 26 is raised by a solenoid 44 and lowered by a spring 47. The lever 45 is released by a second solenoid 48, both solenoids being controlled by a single switch 55 operated from the kinematograph film. Contacts 50, 52 on the levers 45, 26 are so arranged that the circuit through each solenoid is automatically broken as soon as a solenoid has moved its lever.
Patent GB-920243-A (GB)
Title: Latching device
Inventor: HAMILTON WALLACE
IPC: B63B19/24
Filed: 1961-08-15
Abstract: 920,243. Turn-button fastenings. PNEUMODYNAMICS CORPORATION. Aug. 15, 1961, No. 29453/61. Class 44. [Also in Group XXXIII] A latching device securing a ship's hatch cover comprises a body member 13, welded to the hatch cover, an operating member 16, and a rod 19 formed with a hooked end 21 for engagement with a keeper 41. The body member 13 and operating member 16 have abutting cammed surfaces 42, 43 respectively (Fig. 5), and the rod 19 is rotated by the operating member through a sleeve 31 (Figs. 4 and 9) formed with a slot 32 which enables it to be compressed to fit within the bore of the operating member. As the operating member is rotated from the unlatched position the lobes 44 move over the flat portions 47 of the cams 42 and the hook 21 moves into engagement with the keeper 41. Further rotation of the operating member raises it upon the lobes 49 of the cam 42, and compresses the rubber washer 38 to tighten the hook against the keeper. The rod is restrained from rotating further and the operating member slips over the sleeve 31. The outer surface of the operating member is provided with axial slots (Figs. 2 and 3, not shown), by which it may be rotated. A further sleeve 22 (Fig. 10) is welded into the bore of the body member 13, and has a cut out 23 which co-operates with a projection 26 on the rod to retain the latter.
Patent GB-1411095-A (GB)
Title: Gearing and elements thereof
IPC: F16H48/26
Filed: 1972-06-23
Abstract: 1411095 Differential gear; fluid couplings GKN TRANSMISSIONS Ltd 22 June 1973 [23 June 1972] 29463/72 Headings F2W and F2D [Also in Division F1] A gearing element, shown in Figs. 1 to 3, as a planet carrier 16 in a gear pump, usable in a limited spin inter-axle or inter-wheel differential gear on a motor vehicle, comprises an annular cylinder 19 having open-faced axial cylindrical pockets 20, closed at one end and having their open ends closed by heads 34 of pins 30, supporting planets 37, the teeth of which project radially from the pockets to mesh a ring gear 49 and optionally, in addition, a sun gear 43. Passages 40a, 41, 42, in recesses 39 between the pockets 20, feed liquid thereto, which is pumped by the tooth action of the shrouded gears to produce a resistance to planetation. The resistance to pumping may be produced by the mounting clearances of the gears, or they may pump through an external circuit including a restrictor controlled automatically by the speed of planetation. In the inter-axle differential shown, an enginedriven input shaft 13 drives the planet carrier 16; a sun-gear 44 drives through a chain pair 47, 83, a shaft 82 driving the front axle, whilst a ring gear 49 drives through a shaft 52 the rear axle. Welded to the sun gear 44 is a casing 55 between which and the ring gear 49 are interleaved splined discs 68 forming a viscous coupling, which together with the planet pump, opposes differential action. An anti-skid braking sensor may be mounted on the shaft 82. In Fig. 4 (not shown), a planetary pump (123) drivingly connected to a front (or rear) axle, has its flow resistance controlled automatically by an external unit (124), not described, and is chain driven by the tail shaft of a conventional changespeed gear, which also directly drives the rear (or front) axle. In Figs. 5 and 6 (not shown), a twoelement planetary pump for this arrangement comprises an output ring gear (139) and input planet carrier (128). The flow path of the liquid pumped by the gears includes an internal radial gap between a shoulder on the output member and an axially movable valve (141), loaded by a spring (150) in a direction to increase the restrictor gap in opposition to pumped pressure, and hence to volumetric flow and speed difference between the front and rear axles, causing planetation. Thus, with the front and rear wheels rotating at equal speeds, the vehicle is driven only by the rear (or front) axle, but if the latter starts to spin, planetation will ensue, resulting in increased liquid flow and thereby increased resistance to planetation, which transfers some of the torque to the front (or rear) axle.
Patent GB-651108-A (GB)
Title: Improvements in means for cooling and lubricating sewing machine needles
IPC: D05B71/04
Filed: 1948-11-12
Abstract: 651,108. Sewing-machines. ALBERO, A. Nov. 12, 1948, No. 29474. Drawing to Specification. [Class 112] Cooling and lubricating needles and threads. In a rotary-hook sewing machine the hook body is provided on its periphery with a clip for a pad of absorbent material containing coolant-lubricant fluid at such a position as to wipe past the needle as the latter descends, so as to transfer fluid to it and to the thread; the thread is thus made smoother so that better stitches are produced. The effective part of the absorbent pad may be saturated with the fluid from time to time by a hand-operated device, or the part away from the needle may receive the fluid automatically at a controlled rate from a suitable reservoir and valve.
Patent GB-1176566-A (GB)
Title: Method and Apparatus for Extruding Plastics Material
Inventor: SPRANGER HELMUT
IPC: B29C48/355
Filed: 1967-06-27
Abstract: 1,176,566. Automatic control of extrusion equipment. POLYPLASTE H. ROLF SPRANGER K.G. 27 June, 1967, No. 29559/67. Heading B5A. [Also in Divisions B8, D1 and G3] Differences in the speeds of rotation of two rolls 3 and 5, the former situated at the nozzle of an extrusion machine 1 and the latter forming with a driven feed roll 6 a haul-off mechanism for an extruded plastics filament 2, create error signals in a comparator circuit 9 which are fed to an amplifier 10 and thence to an actuator 11 which adjusts the speed of feed roll 6 to changes in the rate of extrusion. Between the haul-off mechanism and a take-up mechanism is a control arm 15 which adjusts the rate of working of a driving unit 14 for the take-up mechanism in response to changes in speed of movement of the filament. Slippage of filament 2 on rolls 3 and 5 is compensated for by a control arm 12 which adjusts the reference level in comparator circuit 9, and between the rolls, the filament passes through a cooling bath 4. As shown, the take-up mechanism comprises a bobbin 7 which is one of four such mounted on an indexable spider (16), Fig. 2 (not shown), the arrangement being such that when a bobbin is full the filament is cut by a blade (20), the full bobbin is brought above an envelope (22) and dropped into it, and the wrapped package is weighed by mechanism (23) and delivered to a conveyer (25). Filament 2 is transferred to an empty bobbin by a gripper (19) and a variable speed transmission 17 compensates for the increase in diameter of the winding on the bobbin as this is filled. A building motion device (13) is provided. Generally, the electrical system may be replaced by an hydraulic and/or pneumatic servo system and alternative take-up mechanisms may comprise slitting, transverse cutting, milling or punching units.
Patent GB-666756-A (GB)
Title: Improvements in cattle mangers
IPC: A01K5/01
Filed: 1949-11-19
Abstract: 666,756. Animal feeding appliances. LINES, E. W. P. Nov. 20, 1950 [Nov. 19, 1949], No. 29668/49. Class 5(ii) A. manger d and fodder-rack hare adjustably mounted on side-posts a which are tubular, provided with openings a' and mounted in fixed sockets b. Anglebrackets e, e<SP>1</SP> support the frames d, g on which are secured the mangers d<SP>1</SP> and rackbars h. The erection may be double for feeding from both sides.