baber/WOPTO huggingface dataset:
Patent GB-367476-A (GB)
Title: Improvements in servo motors or mechanical relays
IPC: G05D13/00
Filed: 1930-11-28
Abstract: 367,476. Servomotor apparatus. WARREN, T. R., Beechwood, Gaskell Road, Altrincham, Cheshire, RYDER, C., Lynton, Finghall Road, Flixton, Lancashire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Nov. 28, 1930, No. 35901. [Classes 69 (ii) and 135.] Valves controlled by pilot or relay valves.- A servomotor device for actuating valves, dampers, electric switches and of the kind in which a control element, or control valve and a main actuating piston are coupled together by a floating lever, has the end of the lever usually coupled directly to the main actuating piston pivoted to a friction clutch arrangement normally engaging a fixed part, but which is released and carried along by the piston when the latter has moved a predetermined distance. A second control actuated by the same or another control element and having a normal floating lever return action but with a throttled supply and exhaust so as to act slowly, may be arranged in parallel with the first control. The Figure shows the application of the invention to a pressure regulator. The pressure gauge 2 is coupled by a link 3 to the floating lever 4 pivoted at 5 to the spindle of a piston auxiliary valve 6 and at 8 to the friction clutch. The valve 6 controls the supply and exhaust to and from the two sides of the main actuating piston 13. The friction clutch comprises a pair of bent levers 16, 17 provided at their upper ends with friction pads 18, 19 slidable in guides 20, 21 in a fixed casing 22, and connected at their lower ends by a spring 23 and two pairs of toggle links 24, 27 The members 18, 19 are normally pressed against the casing by the spring, but are released when one or other of abutments 31, 32 carried by the rod of the main piston engage one of the stops 26, 29 secured to the joints of the toggle links.
Patent GB-973098-A (GB)
Title: Improvements in or relating to alloying jigs suitable for use in the manufacture of semiconductor devices
IPC: H01L21/00
Filed: 1961-10-09
Abstract: 973,098. Alloying jigs for semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd (Philips' Gloeilampenfabrieken N.V.). Oct. 9, 1961, No. 36183/61. Drawings to Specification. Heading H1K. An alloying jig for use in the manufacture of semi-conductor devices is characterized by the use of a hard, monocrystalline, non-transparent stone which may be either natural or synthetic. As shown, a jig comprises two chrome iron plates 1, 2 between which a semiconductor wafer 4 is mounted. Coaxial holes in these plates allow the insertion of plugs 7, 8 consisting respectively of chrome iron holders 9, 10 and tubes 11, 12 of dark coloured synthetic ruby with frosted surfaces. The components of the jig are held together by spring clips and an additional clip (not shown) may be used to secure tube 8. A multiple jig may be similarly constructed and during alloying, as with the single jig, alloying material is placed on the upper surface of the wafer(s) and alloyed and the jig them inverted and the process repeated. Specifications 869,558 and 869,863 are referred to.
Patent GB-636736-A (GB)
Title: Improvements in and relating to the preparation of sintered metal articles for electroplating operation
IPC: C25D5/34
Filed: 1946-12-06
Abstract: Sintered or other porous metallic articles, e.g. sintered iron articles, are subjected to the action of a basic solution and then to an acid cleaning solution prior to electro-depositing a metallic coating thereon from an acid bath (see Group XXXVI).  The article may be buffed or polished before subjecting it to the action of the basic solution.  This latter solution may be in the form of an aqueous solution or the solution medium may be an organic solvent such as alcohol, benzene, toluene, or xylene.  The amount of basic material, e.g. sodium carbonate, may be from 1 to 3 per cent by weight of the solvent.  The acid cleaning solution may be any strong acid solution or mixture of acid solutions, e.g. 50 per cent aqueous hydrochloric acid or sulphuric acid, or a mixture of solutions of such acids, nitric acid, phosphoric acid, or an organic acid such as glacial acetic acid, ethyl phosphoric acid, or ethyl sulphuric acid.
Patent GB-344416-A (GB)
Title: Improvements in or relating to controllers for periodically closing and opening an electric circuit
IPC: H01H51/32
Filed: 1929-11-26
Abstract: 344,416. Interrupters. GENERAL KONTROLAR CO., Inc., 200, East 1st Street, Dayton, Ohio, U.S.A.-(Assignees of Bossard, G. L. ; 200, East 1st Street, Dayton, Ohio, U.S.A.) Nov. 26, 1929, No. 36211. Convention date, Nov. 26, 1928. [Class 38 (v).] Induction relays ; timing devices.-Two or more clips, as 27, detachably fastened on a support 25 which is pivoted between frame plates 18, 19, serve to hold tubes 29 containing mercury or the like for bridging contacts 31, 32. An arm 38 is pivoted to the front pivot 35 of the support 25 and is adjustably secured to the latter by a screw 37 and slot 39 so as to vary the periods during which circuit is made. The arm and support are continuously oscillated by a shaded-pole A.C. motor 51 the aluminium disc 47 of which rotates a gearwheel 44, on the shaft of which is a wheel 41 carrying an eccentric pin 40 engaging a slot in the arm 38. The speed of the disc 47 can be varied by rotating the magnet about a pivot 59 by means of a nut and screw 62. The diagram in Fig. 6 shows connections for supplying a flashing sign or other load connected with terminals 71, 72, the source being connected to terminals 69, 70.
Patent GB-325626-A (GB)
Title: Improvements in or relating to rotary blowers or compressors
IPC: F04C18/344
Filed: 1929-09-10
Abstract: 325,626. Haydock, J. Sept, 10, 1929. Fixed-abutment type. - The centrifugal thrust. of the vanes f in an axially sliding vane type of compressor is taken by antifriction members such as balls r housed in grooves of a cylindrical axial extension of the rotor b.
Patent GB-1520280-A (GB)
Title: Reaction moment blancing device for an engine
IPC: F16F15/26
Filed: 1975-09-03
Abstract: 1520280 Engine balancing HONDA GIKEN KOGYO KK 3 Sept 1975 [10 Sept 1974]  36365/75 Heading F1M A reaction moment balancing device for an engine comprises a balance shaft 3 rotatably supported by the crank-case 1 of the engine in parallel with the engine crank-shaft 2 and provided with a weight 7a of a predetermined mass and transmission means including a pair of intermeshing driving and driven gears 4, 5 mounted on the crank-shaft and balance shaft respectively and having such a gear ratio that the reaction moments exerted on the crank-case by the rotary systems respectively including the crank-shaft 2 and the balance shaft 3 balance with each other, the transmission means further including cushioning means 15 for absorbing shock in the gear transmission between the crankshaft and the balance shaft and phase-controlling means 9, 10 adapted to limit upon shock absorbing operation of the cushioning means, phase shift between the crank-shaft and the balance shaft within a predetermined range. The device further comprises friction clutch means 18 provided for the transmission means to over-ride the cushioning means and arranged to be in engagement without any slip while restraining the cushioning means in an inoperative state as long as the torque transmitted between the crank-shaft and the balance shaft remains below a predetermined level. As described the weight 7a with which the balance shaft 3 is provided takes the form of the rotor of an electric generator 7.
Patent GB-1491774-A (GB)
Title: Pipe coupling
IPC: F16L41/12
Filed: 1975-09-04
Abstract: 1491774 Pipe coupling MONTPELIER FOUNDRY Pty Ltd 4 Sept 1975 36493/75 Heading F2G A pipe coupling member in which two sealing members each comprising a pair of circumferentially extending arch portions 4 joined by a pair of axially extending bridge portions 7 are clamped about co-axially confronting pipe ends by two coupling halves (not shown) is characterized in that each of the said sealing member portions includes a knife-edged pipe contacting lip 6, 9 of wedge-shaped section; said lips being adapted to contact the outer surfaces of the pipe ends and being sealingly retained thereon under the action of fluid pressure prevailing in the pipe. Preferably the sealing members are formed of natural or synthetic rubber or PVC and the bridge portions are formed with grooves 15 which receive corresponding axial ribs formed on confronting faces of the coupling halves to anchor the members in position.
Patent GB-341220-A (GB)
Title: A new or improved mounting for removable wheel hubs in motor cycle and like motor vehicle forks
IPC: B60B27/02
Filed: 1929-12-03
Abstract: 341,220. Detachable cycle w h e e l mountings. THEURER, H., 17, Franzensgasse, Vienna. Dec. 3, 1929, No. 36975. Convention date, Dec. 3, 1928. [Class 136 (ii).] In means for securing a detachable wheel hub between the two arms of a fork on a cycle or like motor vehicle, a central bolt held by clip fastenings and distance rings when released allows a small side movement of the wheel to disengage it from the driving element. The wheel hub 1 when in position is driven by studs 6a secured to the driving element 6 which rotates upon ball bearings carried bv a sleeve secured to one of the arms of the fork 14. The other end of the hub is supported upon the central bolt 3 by a ball-bearing 2 which is contained within and is removed with the hub. Distance collars 26, 27 interposed between the ball bearing 2 and the other arm 14 of the fork secure the hub in its operative position. The central bolt 3 is then held in position at one end by a member 9 which engages grooves in the bolt, and at the other end by a coiled spring 12 and a bayonet connection. When the central bolt is forced to the left against the resistance of the spring 12, the securing member 9 is freed and can be removed, after which the bolt may be withdrawn towards the right, and the collars 26, 27 removed, leaving the wheel hub free.
Patent GB-803785-A (GB)
Title: A new or improved illuminated perpetual calendar
IPC: G04C17/00
Filed: 1955-12-28
Abstract: 803,785. Date indicators. WAKEFIELD, L. March 27, 1957 [Dec. 28, 1955], No. 37055/55. Class 106 (4). [Also in Groups XXXVII and XXXVIII] A date indicator comprises monogrammic apparatus in the form of banks 14, 15, 16, 17, Fig. 5, of electric lamps connected individually to switches 25, Fig. 2, controlled by endless bands 13, 10, 19, Figs. 1 and 2, each band having different arrays of contacts 23 so arranged that by stage-by-stage movement of the band each array in turn will come into operative relationship with the associated switches 25, each array prescribing that in respect of the associated bank or banks of lamps, selected lamps only will be alight to portray one or more letters or numerals, and a driving device for advancing the bands, manually- or time-controlled. As shown, a time switch 2 causes a drive wheel 9 to turn a predetermined amount once every twenty-four hours by momentarily energizing a solenoid operating a pawl and ratchet. Thus the day name control band 13 is advanced daily to bring seven transverse arrays of contacts successively to operative position there to close the corresponding switches 25 to short-circuit appropriate lamps so that those which are alight portray the day name. In the same way the endless band 10 is advanced daily with its 1461 transverse arrays, covering four successive years, in two longitudinal sections A for months, B for date numbers, each month array being repeated as many times as there are days in that month. Four contacts spaced along the longitudinal line 10b close another switch on January the 1st each year to cause a year number control band 19 to advance to change the year display. Other contacts in the line 10c can be arranged to operate a reminder lamp. The edges of the bands are perforated to engage sprocket wheels.
Patent GB-522962-A (GB)
Title: A method for separating ice from concentrates by means of presses, more particularly when concentrating solutions by freezing out the water
IPC: A23L2/12
Filed: 1938-12-21
Abstract: 522,962. Concentrating liquids by freezing. GES. FUR LINDE'S EISMASCHINEN AKT.-GES. and KRAUSE, G. A. Dec. 21, 1938, No. 37165. Convention date, Dec. 27, 1937. [Class 29] Separation of concentrated liquid from the ice formed in the freezing process is effected by a press, preferably a screw press, to which heat is applied to melt some of the ice while under pressure, so that the concentrated liquid is conveyed with the melted ice towards the delivery openings of the press. In cases where heat is developed by the operation of the press cooling may be necessary. Preferably the freezing is carried out in a manner to produce ice crystals of desired fine or coarse structure, and the speed of the press is 'varied according to the character of the ice. The melting of the ice is effected after the main quantity of concentrate has been run off and where the pressure is greatest. A plunger press may be used and its parts may be given a corrugated shape to produce a kneading action on the ice.
Patent GB-1140749-A (GB)
Title: Improvements in coaxial connectors
IPC: H01R9/05
Filed: 1966-08-19
Abstract: 1,140,749. Coaxial connectors. AMP Inc. 19 Aug., 1966 [1 Sept., 1965], No. 37228/66. Heading H2E. In a coaxial connector comprising a central contact 30 spaced from an outer conducting shell 22 by a resilient insulating insert 24, a rib 30d and barbs 22g on the contact 30 and inner surface of an extension 22b of shell 22 respectively bite into the insert 24 and the inner insulation of a coaxial cable which is secured to the connector. The contact 30 is crimped around the cable core, and the shell extension 22b externally receives the outer conducting braid of the cable and a ferrule 32 which is crimped around it and carries a sealing ring 34 engaging the cable outer insulation. The central contact 30 may be a rigid pin, as shown, a resilient outer contact pin being secured by a flange 25 to the shell 22, or alternatively it may be a resilient socket (50, Fig. 3, not shown) surrounded by a rigid socket contact which is secured in an externally screw-threaded outer shell. An internally screwthreaded ring is secured to the shell 22.
Patent GB-878671-A (GB)
Title: Improvements in or relating to the production of textile yarns
Inventor: SMALLEY EDWARD GILLESPIE
IPC: D01H7/92
Filed: 1956-12-07
Abstract: 878,671. Winding draw frame sliver; creels; twist tubes. TWEEDALES & SMALLEY, Ltd. Dec. 6, 1957 [Dec. 7, 1956], No. 37444/56. Classes 120(1), 120(2), and 120(3) In the production of packages of draw. frame slivers, sliver delivered from the draw frame drafting system is passed through a uni-directionally driven rotatable twist tube, the drive to which is interrupted intermittently whereby oppositely handed false twists are imparted to the sliver along alternate predetermined lengths of sliver, the sliver then being wound on to a spindle or bobbin to form cross-wound packages. As shown Fig. 1, Sliver 28 from a draw frame head 10 is delivered by calender rollers 30 to an intermittently rotated twist tube 12, situated about 15 inches from rollers 30, followed by calender rollers 14, 16, 18. Tube 12 is belt driven from an electric motor which is stopped and started at intervals by a cam-operated switch. The tube is rotated while about 11 inches of sliver are fed to the sliver passing through rollers 14, 16, 18 having a right hand twist and about 11 inches of sliver extending from tube 12 towards rollers 30 having a left hand twist. The tube is then stopped while the 11 inches of left hand twisted sliver is fed through the tube, after which it is caused to rotate again and repeat the sequence. The sliver with alternate lengths of opposite twist is then cross-wound on to a bobbin 66 held by brackets 62 pivoted to a reciprocating support 60, the wound sliver package being urged by springs 71 towards a driving roller 68. Each drawing head 10 produces two slivers which are wound into two separate packages on a single bobbin. The packages are used in the creel of a ring spinning frame 80, Fig. 3. The creel consists of two vertical pillars 82 carrying brackets 88 which support the packages so that they bear against driven let-off rollers 90. The sliver passes over deflector rods 86, 84, the distance between rod 84 and the rest of the drafting head 92 of the frame being greater than the distance between adjacent twist reversal points to permit the sliver to rotate and remove the false twist.
Patent GB-1514399-A (GB)
Title: Rotary compressors
IPC: F04C18/356
Filed: 1976-09-09
Abstract: 1514399 Rotary positive-displacement fluid-machines FRICK CO 9 Sept 1976 37513/76 Heading F1F In a compressor a pair of working-fluid pockets L, R in a cylindrical compartment between parallel walls 14, 15 are separated from each other by a helical projection 25 on a hub 24 of a rotary driveshaft 20 and are divided into suction and discharge sections by a pair of diametrically-disposed partitions 30, which slide axially in grooves 27 and have slots with lateral edges 34 abutting the flanks of the projection, the said sections communicating with respective working-fluid inlets and outlets 38 41. Unloading valves 51 to facilitate starting may be provided in the walls 14, 15 and be held in closed positions (as shown) by pressure applied to chambers 56 by a pump 59. The inlets and outlets may be furnished with non-return valves 44, 46. In another embodiment, Figs. 1-8 (not shown), one of the partitions is omitted.
Patent GB-302924-A (GB)
Title: Process for the production of zinc salt solutions
IPC: C01G9/00
Filed: 1928-12-20
Abstract: 302,924. Metallges. Akt.-Ges., (formerly Metallbank und Metallurgische Ges. Akt.-Ges.). Dec. 23, 1927, [Convention date]. Zinc sulphate and salts in general.-In the production of zinc salt solutions by treatment with acid of crude oxide containing materials. an amount of acid less than that chemically equivalent to the zinc content of the material is used and the reaction is so carried out that any local excess of acid with respect to the zinc oxide content of the material, at any time, is avoided, whereby entry into the zinc solution of impurities is minimized, The acid may, for instance, be added continuously or intermittently, preferably with vigorous stirring, to the crude material, which may be first made into a pulp or paste with water or zinc salt solution; or acid and crude material may be added continuously to a pasty mass of crude material and acid, the zinc oxide preferably being present in excess with respect to the acid; or a zinc salt solution obtained by mixing the material with acid may be passed through a suction filter or centrifuge continuously to separate the undissolved residues. In examples, (1) sulphuric acid is added gradually with agitation during a period of four hours at 40‹ C. to crude zinc oxide containing iron and arsenic mixed in a paste with water, 5 per cent of the iron and 2 per cent of the arsenic being dissolved; (2) a crude zinc oxide containing arsenic and antimony is similarly treated, the zinc liquor being free from these impurities.
Patent GB-878264-A (GB)
Title: Glass bending moulds
IPC: C03B23/027
Filed: 1959-11-06
Abstract: 878,264. Bending glass sheets. PITTSBURGH PLATE GLASS CO. Nov. 6, 1959 [Feb. 4, 1959], No. 37718/59. Class 56. A skeleton type mould having an elongated shaping surface 3, 5 defining a concave control and having one or two end portions 5 each extending to an apex, has pivot means 21, 22 attached to the or each end portion 5 to extend outwardly of the apex and a glass supporting member 20 partially attached to the or each end portion 5 about the pivot 21, 22, each glass supporting member having an upper edge 25 having end parts 29 outwardly of, above and flanking the apex and an intermediate part 28 outwardly of and below the apex. A pair of holes 24 either side of the pivot nut 21 in the member 20 minimize the thermal capacity of the member adjacent the glass sheet 14. The centre mould portion 3 has at each end a vertically extending plate 11 connected at each side to a further plate 12 having a semicircular upper edge serving as the axis for the pivotal movement of the end portions 5 from their open to closed positions. Each end portion 5 has at each side an arched bracket 8 to rest on a plate 12 and provided with an arm 9 extending inwardly from the end of the mould and carrying weights. Upwardly extending fingers 13 on the plates 12 align the sides of the glass 14. In the flat position of the mould, as seen in Figs. 4, 6..the end tip 26 of the glass 14 rests on the upper surface 25 of the member 20 at spaced points 27 just inwardly of the outer ends 29. As the glass is heated to sag on to the mould, the tip 26 slides gradually off the member 20 till it engages the bar 5, with the central section 28 just below.
Patent GB-922688-A (GB)
Title: Improvements in controllable and synchronisable perforated-tape drives
IPC: H02P8/24
Filed: 1961-10-20
Abstract: 922,688. Step-by-step motors; automatic speed control. CREED & CO. Ltd. Oct. 29, 1961 [Oct. 27, 1960], No. 37734/61. Classes 35 and 38 (4). A perforated tape-drive system comprises a motor having two 90-degree displaced stator coils. Fig. 1b and two contacts moa, mob, controlled by the motor rotor so as to energize the coils successively (at about 200 steps per second) and is characterized in that the coils are energized by the contacts not directly as shown in Fig. 1b but via transistor amplifiers. In the preferred embodiment, each of the two contacts is also shunted by a transistor, these transistors being controlled by crystal stabilized multivibrator so as to stabilize the speed of the motor. To stop the motor both coils are energized simultaneously. Conventional amplifiers (Fig. 2, not shown), using three resistancecoupled transistor stages are used. The speed control of the motor is effected by the circuit of Fig. 3. Each contact moa, mob is shunted by a transistor T5a, T5b, which are caused to conduct alternately by a multivibrator T11, T12. If the motor speed coincides precisely with the multivibrator frequency then as contact moa closes (to energize coil moa) the shunt transistor, T5a becomes conductive and when the contact moa opens the shunt transistor becomes non-conductive. If the motor speed falls, owing for example to an increased load, the shunt transistor T5a will become conductive slightly before contact moa closes and this will tend to increase the speed of the motor. If, however, the speed of the motor rises, then the shunt transistor remains conductive for a short period after the contact moa opens and this will tend to slow the speed of the motor. When the motor is started from rest it is necessary to ensure that the multivibrator is correctly phased with respect to the rotor, and this is accomplished by removing an earth clamp, at points A, B, from a feedback loop from the first stage of each transistor amplifier which causes the multivibrator to be positively switched by the contacts moa, mob for the first few steps of the motor until its normal speed is reached, and then re-clamping the points A and B to earth whereupon the multivibrator can take over. Clamping of the feed-back loops is controlled by a flip-flop T13, T14, which in turn is controlled by a switch S3, and which also shorts the outputs from the multivibrator to earth via diodes D2a, D2b, while it is being brought into phase.