baber/WOPTO huggingface dataset:
Patent GB-1099850-A (GB)
Title: Improvements in or relating to the extrusion of metal
IPC: B21C37/15
Filed: 1966-05-10
Abstract: 1,099,850. Extruding; welding by pressure. ANACONDA AMERICAN BRASS CO. May 10, 1966 [June 24, 1965], No. 20581/66. Heading B3P and B3R. An elongated metal product having at least two longitudinal holes, Fig. 4 (not shown), is made as a unitary member by extrusion. The product may be of copper, copper alloy, or aluminium and is formed by extruding a heated billet from a container (12), Fig. 1 (not shown), over a mandrel 11 which has two spaced nibs 30, 31 screwed at 32 into the front end of the mandrel and projecting into the die 15. A block 22 holds the die in position. A dummy block (37), Fig. 1 (not shown), in front of an hydraulically operated ram (10), shears off a shell (39) of billet metal which has frozen to the mandrel. This seals off the extrusion chamber and enables an oxide free weld of the metal flowing into the space between the ribs 30, 31. The mandrel 11 is fixed during extrusion but may be withdrawn by hydraulic means after each extrusion to facilitate removal of the shell (39). A spacer block (38), Fig. 3 (not shown), is placed in the die to keep the ribs 30, 31 spaced correctly at the start of extrusion. This block is ejected by the extruded product. An example is given for extruding a hollow copper billet and reference is made to the product being used as a hollow water cooled conductor in a steam turbine plant.
Patent GB-858167-A (GB)
Title: Improvements in or relating to mounts for electrical impedance units
Inventor: JR DANFORTH WILLIAM COMINS
IPC: H01F27/29
Filed: 1959-06-16
Abstract: 858,167. Couplings. CAMBRIDGE THERMIONIC CORPORATION. June 16, 1959, No. 20605/59. Class 38 (1) Terminal lugs 15 for an electrical impedance have portions received by notches 12.1 to 12.4 in an insulating collar 11 into which is inserted the end of an insulating tube 17 carrying for example, a coil 17.5, the lugs being seccured by bending over cutout portions 15.4 as shown and by cementing the tube 17 to the collar 11. The assembly may be mounted on a printed circuit board (Fig. 5, not shown).
Patent GB-634527-A (GB)
Title: Staple and its manufacture
IPC: B21D53/36
Filed: 1947-07-31
Abstract: 634,527. Staples. B.O.C.J.L. CORPORATION. July 31, 1947, No. 20718. Convention date, Sept. 16, 1944. [Class 89 (ii)] [Also in Group XXII] Staples with heads of general X-form 10, Fig. 4, made from sheet metal byslitting, expanding and bending (as described in Group XXII) have the bends for the legs 12 all in parallel planes with the grain of the metal running along the length of the arms 11 and legs 12. The staples may have pairs of arms 16, 18, Fig. 17, differing in length. This permits the formation of staple strips in which the legs on the shorter arms rest without interference between the legs on the longer arms. Fig. 22 shows one application of such staples in connecting four pieces of timber, another pair of staples being driven on the opposite side. For use in fastening paper &c. to boards the heads may have extensions 40a, Fig. 16. The heads may be arched instead of flat. The staples may have all four arms differing in length as shown in Fig. 9.
Patent GB-1144512-A (GB)
Title: Improvements in or relating to safety devices
IPC: F16P3/14
Filed: 1966-05-10
Abstract: 1,144,512. Machinery safety devices. PEARSON PANKE Ltd., and B. G. FINCHER. 10 May, 1967 [10 May, 1966], No. 20724/66. Heading F2J. The danger zone of a machine tool, e.g. a press or guillotine, is protected by a mechanical barrier and, outwardly thereof, by a photo-electric barrier, the barriers being linked to cut-out means able to prevent action of the tool and being interlocked one with the other. The press shown has a rectangular bed 2 and corner pillars 4, access to the working zone being from the longer sides, each of which is protected by a mechanical barrier 10 in front of which is a photo-electric barrier having atransmitter-receiver 15 and a reflector 16. A second photo-electric barrier with a transmitter/ receiver 17 and a reflector 18 is placed below each mechanical barrier. The shorter sides may be protected by further photo-electric barriers if desired. The mechanical barriers 10 comprise bars 22 having on their ends rollers 36 movable in horizontal guides 38, and arms 26 secured to the bars are pivoted at 28 to arms 30 having fixed axis pivot shafts 32. Each photo-electric barrier opens a respective switch 40 in the energizing circuit of relays 48, 50 when its beam is interrupted. Relay 48 and micro-switches 54 control energization of a relay 53 in the control circuit (not shown) of the press driving clutch. Relay 50, when energized, moves a valve 56 to admit compressed air to rams 58 which move plungers 64 into respective slots 66 in the pivot shafts 32 of the mechanical barriers to lock the latter in their safe positions. Only when a mechanical barrier is in its safe position can the plunger 64 engage the slot 66, and only when the plunger is fully engaged in the slot is the respective switch 54 closed. To lock the barriers when the press is operating, either pressure from the pneumatically actuated press driving clutch 57 is admitted to the rams 58 via lines 59, or a pressure switch in the clutch overrides the action of relay 50, or a mechanical interlock from the press platen or its drive may be provided. With a mechanical barrier in the position giving access to the working area (broken lines, Fig. 3) the arms 30 interrupt the beam from transmitter 17. When the barrier has been brought to its safe position and the operator moves away from the outer photoelectric barrier, the relays 48, 50 are energized and rams 58 operated to lock the mechanical barriers and close switches 54. The press may then be started by normal control means (not shown). Interruption of any beam causes the press to be stopped. The photo-electric barriers may be rendered ineffective during the return stroke of the press, a choke 68 in the air exhaust line causing a short delay in the release of the mechanical barrier interlock.
Patent GB-647703-A (GB)
Title: Improvements in and relating to electron lens systems
IPC: H01J37/24
Filed: 1944-10-25
Abstract: 647,703. Electron lenses. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 25, 1944, No. 20729. Convention date, Oct. 25, 1943. [Class 39 (i)] In a three-element electron lens for an electron microscope, comprising two outer discs 10, 12, Fig. 2, fitting within and in conductive contact with a metallic cylinder 18, and an insulated inner disc 11 supported by an insulator contacting the cylinder and spaced from the outer discs by cylindrical spacers 22, 23, the said insulator 30, Fig. 4, is arranged to contact the inner element at a plurality of spaced points so as to reduce insulation losses. As shown, the insulator 30 is a bent vitreous rod engaging the inner member at points 31 and the cylinder 18 at ground-off points 32. In a modification, contact is still further reduced by forming the rod at points 31 with portions of sharper radius.
Patent GB-531296-A (GB)
Title: Improvements in plants for storing oils and other liquids in underground cavities
IPC: B65D88/78
Filed: 1939-07-17
Abstract: 531,296. Storing liquids. SVENSKA ENTREPRENAD AKTIEBOLAGET. July 17, 1939, No. 20749. Convention date, July 28, 1938. [Class 69 (i)] In a plant for storing oil or other liquids in underground cavities in which the space between the wall of the cavity and the wall of a tank formed of relatively thin sheet metal is wholly or partly filled with a liquid, preferably water, to counterbalance the internal pressure in the tank, the latter is formed as a downwardly open bell and is wholly or mainly below the subsoil water level as determined by an adjacent lake &c. The cavity 2 communicates below with a tunnel 3 and shaft 4. and above with a tunnel 5. The tank 6 is supported by a ring 7, is open below, and is formed of thin sheet metal sections welded together in situ. An oil &c. supply and discharge pipe 9 extends from the tank to a loading bridge 10, and pipes 12, 14, extend from a pump 13 into the lake &c. 11 and shaft 4, respectively. A non-corrosive liquid having substantially the same specific gravity as the oil stored may replace water within the cavity, or the water &c. may be de-aerated, as by circulation at intervals through suitable apparatus, to prevent corrosion ; further deaeration apparatus may be provided in either of the pipes 12, 14. If the liquid stored is miscible with the water or other liquid around the tank, they may be separated by a vertically movable diaphragm or a layer of oil &c. of intermediate specific gravity.
Patent GB-792302-A (GB)
Title: Improvements in pouring arrangements
IPC: B65D47/40
Filed: 1955-04-29
Abstract: 792,302. Dripless pourers; drop dispensers. GOTH, I. April 29, 1955, No. 20765/57. Divided out of 792,301. Classes 66 and 125(3). Pouring devices of the kind described in Specifications 736,347 and 757,599, having a capillary recess 1 arranged across the direction of flow of liquid adjacent to two pouring surfaces 2, 4 meeting at 3, have the pouring surfaces of annular form, the second surface 4 projecting upwardly in the upright position of the container or pouring device. The device may comprise an insert adapted to be fitted into the mouth of a vessel. As shown in Fig. 1 the vessel is made of sheet metal with threads 6 for a sealing cap. The surface 4 comprises the reverse side of the sheet metal forming the lower portion of the surface 2. A capillary channel may be arranged in the flat top portion 2. Fig. 6 shows an insert with a liquid outlet aperture 12 and an air inlet passage 13. Any partially-formed drops are sucked back to the recess 1 on righting the container and drain back through the aperture 12.
Patent GB-1140888-A (GB)
Title: Improvements in and relating to container filling and sealing devices
IPC: B65B3/24
Filed: 1966-05-11
Abstract: 1,140,888. Filling and sealing containers. COMPLETE PACKAGING SERVICES (PTY) Ltd. 11 May, 1966 [14 April, 1965], No. 20784/66. Headings B8C and B8T. Rows of containers 15 to be filled and sealed are carried in cups 14 mounted on cross-bars (13), Fig. 1, between two parallel chains 8, and conveyed intermittently beneath first nozzles 67 which partially fill them, and second nozzles 68 which complete the filling, the space between the nozzles allowing for any froth to settle, and an air line 61 then dispersing any froth formed after the second filling, any spillage being collected in tray 127 which drains into tank 128. The containers then pass beneath heaters 66 which heat the container mouths prior to them being nipped together by sealing jaws 94, 95. The chains 8 run on free sprockets 9, and sprockets 10 driven by means of a reciprocating pawl 20 engaging a ratchet wheel 17 mounted with the sprocket 10. A pawl 27 prevents reverse motion of the ratchet wheel. Filling.-The nozzles are fed from a tank 31 via valves 29, 30. Each valve (29), (30), Figs. 3 and 4, comprises a horizontal cylinder (35) in which slides a spring-loaded piston (36) carrying a roller (37) which abuts a bar (38) connected by links (40), (42), to a first order lever 44 carrying a roller 47 which runs on a cam 48. On revolving the cam, the pistons are thus driven in the cylinders from a closed to an open position to connect the tank (31) to the nozzles (67), (68). The revolving of the cam is co-ordinated with the driving of the chains 8 so that the nozzles will only dispense when the containers are stationary. The length of time of dispensing is determined by the adjustable cam 48. Means (73), (74) are provided to detect the presence of a container in position, to allow filling. Levers (105) are provided to prevent filling by one or all of nozzles (68) when the filling may be performed completely by nozzles (67). When liquids undergoing fermentation are used, a knife arrangement may be provided on one or both jaws 94, 95 to penetrate the body of a container to provide a " breathing " aperture. In an alternative filling and sealing machine, Fig. 6, the containers are carried in a single line in cups (121) mounted on a horizontal endless chain (110).
Patent GB-484185-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25D21/02
Filed: 1936-07-28
Abstract: 484,185. Refrigerating ; ice-making. ELECTROLUX, Ltd. July 28, 1936, No. 20883. Void. Convention date, Aug. 13, 1935. [Class 29] Rime, dealing with.-The accumulation of frost on the cooling unit or evaporator 12 of a refrigerator is indicated or announced by engaging a feeler member 21 with the surface of the unit momentarily at intervals, as when the cabinet door 11 is opened. A push-rod 17 is moved inwards as the door is closed and moves and holds the feeler out of action so that it cannot freeze on to the surface, a spring being provided to move the feeler into active position as the door is opened. A curved signal plate 15 may be carried by the feeler and show a coloured ground through an opening in the front plate 13 of the unit to warn the user that defrosting is necessary, or electric or wire cable transmission to an alarm outside the cabinet may be used. The feeler may be put into action at regular intervals by a clock. A similar device is described for testing the progress of freezing in icemaking trays in the cabinet, a push-rod being provided at the side of the front plate of the icemaking unit to actuate a pair of feeler arms normally held clear of the top edge of the tray so as not to obstruct withdrawal.
Patent GB-1254347-A (GB)
Title: m-METHYLSULFONYLPHENYLCARBAMATES
IPC: A01N47/20
Filed: 1969-04-24
Abstract: 1,254,347. m-Methyl sulphonyl phenyl carbamates. BADISCHE ANILIN- & SODAFABRIK A.G. 24 April, 1969 [25 April, 1968], No. 20923/69. Heading C2C. The invention comprises compounds of the formula wherein R denotes an aliphatic C 1-9  radical, optionally substituted by chlorine or bromine atoms or by the trichloromethyl, alkoxy C 1-3 , phenyl, cyclohexyl, cyano, nitro, acetyl, propionyl, carboxyl, carbomethoxy, carboethoxy, carbamoyl, methyl carbamoyl or dimethylcarbamoyl group, or a cycloaliphatic C 3-9  radical, or an araliphatic C 7-9  radical. They are prepared by reacting m-methylsulphonyl phenyl isocyanate with the alcohol ROH, where R is as defined above. They may be used in pesticidal compositions alone or together with an inert solid or liquid carrier, and, if desired, a fertilizer, insecticide, fungicide, bactericide, growth regulator or other herbicide.
Patent GB-1166420-A (GB)
Title: An improved Foot-Operated Driving Gear
Inventor: CORNFORTH STEPHEN
IPC: B62M1/24
Filed: 1968-05-02
Abstract: 1,166,420. Treadle drive mechanism. S. CORNFORTH. 2 May, 1968, No. 20937/68. Heading B7E. A treadle drive mechanism for use with a bicycle comprises a pair of free-wheel sprockets 25, 26 both connected to drive in the same direction a rear wheel spindle 27, there passing around the sprockets the two runs of a driving chain 28 which is looped around an idler sprocket 22 suspended from a frame 15, said chain runs each passing round one of a pair of sprockets 3, 4 before being fastened to a fork 20 at 30, the sprockets 3, 4 each being supported by a lever 1, 2 respectively, pivoted about a spindle 5 and connected respectively with treadle levers 6, 7 extending at 90 degrees therefrom, there being provided resilient stop means 42 to limit the travel of the levers 1, 2 and a further chain 37 to tension said chain 28. Reciprocating action on the pedals 12 will alternatively move forward the upper runs of the chain 28, the driving of the spindle 27 taking place when the sprockets rotate in a clock-wise direction. The tensioning chain 37 passes round a second idler sprocket 21 and and has its ends attached to sprocket segments 33, 34 at 35, 36, said segments being connected with levers 1 and 2 to rotate therewith. The axes of the idler sprockets are inclined with respect to the axes of spindles 27 and 5.
Patent GB-1116763-A (GB)
Title: Improvements in or relating to breathing apparatus
IPC: A62B7/00
Filed: 1966-05-11
Abstract: 1,116,763. Breathing apparatus incorporating a heat exchanger unit. AUERGESELLSCHAFT G.m.b.H. 11 May., 1966 [18 May, 1965], No. 20971/66. Heading A5T. Breathing apparatus for protecting a wearer against carbon monoxide is illustrated with reference to the Figure, and comprises a filter (not shown), a valve head 1 and a mouthpiece (not shown), and is characterised in that a heat exchanger unit consisting of a plurality of metal grids 4 is located between the mouthpiece (connected to 2) and the filter (located under 1), viz. in that part through which inhaled and exhaled air flows. The metal grids may consist of alternately steel and aluminium or copper wires. Reference has been directed by the Comptroller to Specifications 1,051,054
Patent GB-294184-A (GB)
Title: Improvements in and relating to photographic cameras
IPC: G03B15/08
Filed: 1928-07-19
Abstract: 294,184. I. G. Farbenindustrie Akt.- Ges., (Assignees of Bornmann, C.). July 19, 1927, [Convention date]. Magazine hand cameras for roll films. - A camera provided with a reciprocating film-feeding device, with means for moving the device in one direction to feed the film, and also with means for returning the device to its initial position, is further provided with means for preventing return of the device unless the feed movement has been completed. As shown in side view in Fig. 1 and front view in Fig. 2, the removable back 7 of the camera 1 carries a guideway 8 for a slide 11 to which is pivoted at 12 a feed member 13 pressed forward by a spring 15 and having claws which are bevelled so that they engage and feed the perforated film 5 from the holder 3 to the holder 4 when the slide 11 is depressed by operating a finger piece 23 working in a vertical slot in the back 7, but ride out of and over the film feed perforations when the slide is returned by springs 20 to its initial position. Pivoted on the slide is a dog 24 having a rounded nose 29 adapted to engage notches 30, 31 in the edge 10 of the guideway 8 to determine the limits of the feed movement of the slide 11. A flat spring 27 bearing against the rear flat face of the dog 24 tends to maintain the dog in horizontal position. At the beginning of the feed stroke of the slide 11, the dog 24 is rocked out of the notch 30 by the edge 10, and while it remains so rocked, return of the slide 11 to its initial position is impossible owing to the binding of the dog against the edge 10 due to the action of the spring 27. When the feed stroke is terminated by the engagement of the slide 11 with a post 18, the nose of the dog enters the notch 31, so that the dog resumes horizontal position, and the slide 11 will return to the initial position on release of the finger piece 23. The film 5 is pressed against the focal aperture 19 by a pad 16 carried by a spring 17 removably secured to posts 18, 18<1> on the plate 8.
Patent GB-982039-A (GB)
Title: Apparatus for controlling the operation of multiple combustion zones
IPC: F27B3/28
Filed: 1962-05-31
Abstract: 982,039. Automatic control of air/fuel ratio. UNITED STATES STEEL CORPORATION. May 31, 1962 [June 12, 1961], No. 21053/62. Heading G3R. In a system for automatically controlling the air/fuel ratio of at least two burners, voltages corresponding to the proportion of one compound in the flue gases from each are combined with a voltage dependent on the rate of flow of one of the supplies to the burners and any unbalance between the resulting voltages and voltages dependent on the rates of flow of the other supplies to the burners is utilised to correct the air/fuel ratio. In an open hearth furnace 8 for making steel,a reversing valve 26 supplies liquid tar fuel alternately in opposite directions through burners 20 and 20W and combustion is assured by another, synchronized,reversing valve 18 supplying air alternately through regenerators 4 and 4W. Valve 18 also couples each side of the furnace alternately with a stack for removal of the exhaust gases which are sampled alternately through tubes 22, 22W by a reversing valve 29 and applied to flue gas analysers 30, 32. These analysers adjust potentiometers 62, 64 so that a voltage corresponding to deviation in the proportions of CO and O 2  from values determined by the setting of manually operated potentiometers 66, 68 is applied through a line 92 and amplifier 56 to control a follow-up servomotor 52 correcting the composition of the flue gases by control of a pneumatic vlave 50 the setting of which determines the datum of a system 38 automatically stabilizing the flow of fuel to the furnace through a conduit 23. The control of servomotor 52 is continuously interrupted by timer 118,120 for a period sufficient to allow each correction increment to be detected by the analysers. Potentiometers 94, 96 which are operated by servomotor 52, serve to store the position of servomotor 52 corresponding to the operation of each burner and, upon re-operation of that burner, are effective to cause adjustment of servomotor 52 to its previous position for that burner during a period provided by a time delay 116. Correspondence between the rates of supply of air and fuel is assured by an air flow meter 16 operating a potentiometer 80 to vary the input to amplifier 56. Operation of push buttons 110, 112 operates a changeover valve 46S to render a manually controllable pneumatic valve 48 effective instead of automatically controlled valve 50. Detection of CO or O 2  only, and controlling the air supply instead of the fuel supply, are referred to.
Patent GB-151246-A (GB)
Title: Improvements in travelling ladders
IPC: E06C5/20
Filed: 1920-07-12
Abstract: 151,246. Magirus Akt.-Ges., C. D. Dec. 15, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Portable wheeled ladder escapes.-In portable fire-escape &c. ladders pivoted on the transport carriage in the manner described in Specification 151,249, the ladder 2 is pivotally attached to the supporting-frame 1 by two pairs of links 6, 7, which are pivoted to the frame and to the ladder sides, and are so arranged that the distance of the pivot 4 from the ladder 2 decreases during elevation and increases during lowering of the ladder.
Patent GB-224950-A (GB)
Title: Improvements in apparatus for the manufacture of water-gas
IPC: C10J3/46
Filed: 1923-08-20
Abstract: 224,950. Dvorkovitz, P. Aug. 20, 1923. Producers.-Water gas is generated by heating finely-divided carbonaceous matter such as coke or coal in the presence oi oxygen and hydrogen obtained by decomposing water vapour. The carbonaceous matter from a hopper a<2> impinges on a deflector a<3> and falls on to the bars a, air is forced through an inlet a<1> heating the charge to incandescence, and the hot gases pass through a superheater D and preheater E, the cover e<2> being raised. During the run, the cover e<2> is closed, steam is passed by pipe e through the preheater E and decomposed in the superheater D into oxygen and hydrogen which enter the generator C and meet the finely-divided fuel which is passing down the generator, the resulting water gas being withdrawn through an outlet a<4>. Specification 192,816 is referred to.