baber/WOPTO huggingface dataset:
Patent GB-794827-A (GB)
Title: Improvements in or relating to thermo bimetal switches
IPC: B60Q1/38
Filed: 1955-03-24
Abstract: 794,827. Temperature-responsive actuating-elements. MULLER, O. March 24, 1955 [March 24, 1954; Aug. 30, 1954], No. 8661/55. Class 64(2) [Also in Groups XXXV, XXXVII and XXXVIII] In a snap-acting bimetal strip 1 in an electric switch (see Group XXXII), an impression 2 is in the form of part of the surface of a sphere whose diameter is much greater than that of a circle of which the periphery of the impression forms the whole or a part and of which circle the diameter is at least equal to the width of the strip. Furthermore, there is a hole 3 at the centre of the impression 2 and there are impressed grooves 8, 10 extending from the impression towards the edge of the strip or towards a contact 7. The strip is 6-8 mm. wide and 0.06-0.15 mm. thick and includes a fastening hole 6 from the region of which extends a supporting tongue 11 narrower than the strip and extending to the centre of the hole 3 so that only the half bearing the contact 7 moves when the temperature reaches 80‹C, for example. The strip may have a heater winding or be heated by current flowing through it. In a starter circuit for a discharge lamp (see Group XXXV), a snapacting bimetal strip is held out of action until a non-snap bimetal latch is heated, Figs. 7-9 (not shown). In one form, Fig. 9, the bimetal latch is bent to U-shape and rests over a carbon-layer resistance heater.
Patent GB-275686-A (GB)
Title: Improvements in and relating to means for the application of liquids to surfaces by compressed air
IPC: B05B7/24
Filed: 1926-03-30
Abstract: 275,686. Kamm, L. March 30, 1926. Fluid - actuated valves. - A reducing valve comprises a cylinder 94 containing a diaphragm 103 clamped by means of a domed cup 104 and clamping ring 105. Fixed to the diaphragm by a plate is a rod 106 extending through a tubular extension 107 of the cup 104 and carrying a valve 109 at its lower end. A coiled spring 106<a> the pressure of which is adjusted by a screw cap 108 bears on the diaphragm 103.
Patent GB-625320-A (GB)
Title: Improvements in or relating to modulated carrier wave receivers
IPC: H03G3/22
Filed: 1946-02-14
Abstract: 625,320. Automatic volume control. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 14, 1946, No. 8692/48. Convention date, Feb. 14, 1945. Divided out of 625,258. [Class 40 (v)] An exalted carrier receiver for amplitude or phase-modulated signals in which the carrier is selected and limited before application in the exalted carrier detector has an A.V.C. system operated from a control voltage derived from the demodulated signal. The voltage may be combined with a control voltage derived from the signal obtained from a normal detector, the difference voltage being used to effect the control. Fig. 1 shows the invention as applied to the exalted carrier double detection superheterodyne receiver for amplitude or phasemodulated waves which is described in. the parent Specification. The modulated second I.F. signal is applied to the diode demodulator valves 88, 89, through potentiometer 104, amplifier 100 and tuned transformer 95. Amplified intermediate frequency carrier in the correct phase is also supplied to the demodulator (via leads A) to provide exalted carrier de. modulation. The resulting modulation signal is amplified in valve 110 and passed to output transformer 117. A part of this signal is also applied via lead 119 to a delayed A.V.C. detector 118 whose output voltage is passed through a resistance capacity time constant circuit 121, 122 to control the gain of amplifier valve 100. In Fig. 2, the modulation output from amplifier 110<1> following exalted carrier demodulator 88<1> is rectified by double-diode 313 to produce a control voltage across load resistor 314, having a polarity negative with respect to earth. A normal, non-exalted carrier demodulator 300 supplied via leads 301 with a part of the output from the I.F. amplifier (not shown), provides a modulation signal which is rectified by double-diode 311 to produce a second control voltage, across load resistor 315, having the opposite polarity with respect to earth. The combined voltage appearing in lead 120 is used to control the gain of I.F. amplifier valve 29 as in Fig. 1. The A.V.C. voltage may alternatively 'be applied to a modulation frequency amplifier and may in addition be forward acting.
Patent GB-1444047-A (GB)
Title: Charge transfer semiconductor devices and methods of fabricating such devices
IPC: H01L29/423
Filed: 1974-02-26
Abstract: 1444047 Charge transfer devices HITACHI Ltd 26 Feb 1974 [28 Feb 1973 27 June 1973] 8707/74 Heading H1K A charge transfer semi-conductor device, e.g. a charge-coupled device, comprises a first series of electrodes 24, 25, Fig. 4, disposed on an insulating layer 21, and a second series of electrodes 22, 23 coplanar with the first series and disposed on the insulating layer 21 only between pairs of electrodes of the first series, wherein oxidized regions 26, 27, 28 formed by oxidation of electrode material of the first series are disposed on the insulating layer 21 in the gap between each of the adjacent electrodes. As shown in Fig. 4 the oxide may completely fill the gaps between the electrodes. Alternatively, Fig. 11f, an air gap 78 may also be present between the electrodes. The provision of the second series of electrodes enables the efficient transfer of trapped charges between successive electrodes of the first series by controlling the potential well in the semi-conductor between the first electrodes. The device may be formed by providing a 1000 Š thick SiO 2  layer on an N-type Si body, forming thereover a 5000 Š A1 layer and a photo-resist layer. By photolithographic etching the A1 layer is etched to provide a pattern of the first series of electrodes, and the etching may be continued to remove some of the A1 under the edge of the photoresist if an air gap is to be provided. The exposed side surfaces of the Al electrodes are then anodically oxidized to form oxidized regions about 2000 Š thick. Additionally at this stage if required boron ions 74 can be implanted in the semi-conductor body between the first series of electrodes, Fig. 11f. Thereafter the second series of electrodes is formed by evaporation of A1 or Au to a thickness of 5000 Š, still using the original photoresist as a mask. The photoresist may then be removed and respective adjacent electrodes, one from each series forming the components of a composite electrode 73, 75, may be interconnected in pairs by conductive layers 77, Fig. 11f. The electrode gap is between 100 Š and 1 Á, preferably 200- 5000 Š. In an alternative embodiment the first series of electrodes is formed of polycrystalline silicon doped with phosphorus and the mask layer formed thereover is a phosphosilicate glass. Alternatively the first and second series of electrodes could be formed by Ta, W or Mo, and the second series of electrodes could be formed of a conductive oxide such as SnO 2  or InO 2 . The insulating layer formed in the semiconductor body may alternatively comprise Al 2 O 3  or Si 3 N 4 , and these materials or Al could be used as the mask material.
Patent GB-328742-A (GB)
Title: Improvements in or relating to egg-boxes
IPC: B65D85/32
Filed: 1929-03-19
Abstract: 328,742. Hulbert, H. C., and Smith, T. P. March 19, 1929. Fittings, internal.-In an egg box comprising a pair of opposed apertured supporting trays' between which the eggs are held, the trays 1<a>, 1<b> are detachable and made from corrugated cardboard with the bent flanges 3 so dimensioned and related to the depth of the box walls that, when in position supporting the eggs, the outer external edges of the trays are flush with the top and bottom surfaces 6, 5 of the box; the flanges 3 are perpendicular to the trays and contact with the walls of the box. Specifications 6365/92, 27382/07 and 151,082 are referred to. Reference has been directed by the Comptroller to Specification 25543/07.
Patent GB-1046716-A (GB)
Title: Seat construction particularly for tractors and like vehicles
Inventor: STROUT RAYMOND DRESSER
IPC: B60N2/52
Filed: 1965-03-02
Abstract: 1,046,716. Cushions. SAGINAW WIRE PRODUCTS Inc. March 2, 1965, No. 8845/65. Heading A4M. A seat S has fabric top and side walls 19 made of air impervious material connected to a rigid bottom portion 10 having an opening 11 provided with a valve 24. Springs 13 attached at their ends to the bottom portion 10 normally support the side walls in an expanded condition. Under heavy shock loading a strap 23 attached to springs 13 forces valve 24 down to a position in which top disc 24a completely covers opening 11. Air is prevented from escaping from chamber 22 and resists compression. This prevents bottoming of the load surface. A sharp rebound action brings disc 24b Figs. 4 and 5 (not shown) into engagement with the underside of opening 11. Orifices 26b in disc 24b limit the amount of air flowing back into chamber 22 and the rebound effect of springs 13 is thus damped.
Patent GB-703366-A (GB)
Title: Improvements in or relating to cranes, grabs or the like
Inventor: AITKEN ROBERT LOUDON
IPC: B66D1/02
Filed: 1951-04-17
Abstract: 703,366. Spring-drum apparatus. AITKEN, R. L. April 15, 1952 [April 17, 1951], No. 9004/51. Class 78 (2) In cranes provided with spring means for preventing the spinning of a suspended grab bucket during operation, the spring means comprises a tubular housing 3, Fig. 1, attached to the jib, a shaft 2 rotatably mounted in the casing connected with a cable drum 1 and a coil spring 10 connected between the shaft and the casing in such a manner that the connection so made is broken before the drum completes a revolution in advance of the spring during uncontrolled unwinding caused by sudden release of tension due, e.g. to the cable breaking, and requires manual intervention to restore it. The shaft 2 extends into and is connected by a pin 9 to a tubular member 7 which is connected to an anchorage casting 6 rotatably mounted on a spigot 5 carried by the end plate 4 of the housing 3. One end of the spring 10 is connected to the casting 6 and the other end is attached to a casting 12 which is rotatable on a fixed bearing 8. The periphery of the casting 12 is formed as a cam 14, Fig. 2, the abutment face 15 of which bears against a plunger 16 mounted in the housing 3. This plunger carries a spring ring 19 which engages frictionally the guide 17 and retains it in any position. During normal working the cam is urged in the direction of the arrow, but when the cable breaks, if the drum I rotates faster than the spring uncoils, the cam turns in the opposite direction and its surface engages the bottom of the plunger and pushes it outwardly to a point where it cannot be engaged by the face 15. The spring is maintained in this disconnected unstressed condition while a new line is connected to the drum. When this has been done, the drum is turned to rotate the cam sufficiently for the plunger to be restored to its original position by a blow. In a modification the plunger has an inclined undersurface'and engages with a peg having a similar surface on the anchorage member. This peg is used also to anchor the spring. In another modification an abutment 25, Fig. 4, on the bearing 8 limits the movement in one direction of a pivoted anchor member 26 mounted in a housing 27 on the housing 3. The member 26 normally engages an end loop of the spring, but when the cable breaks, the reverse rotation will cause the loop to swing the member into the position shown in dotted lines and to become disengaged. The member 26 is retained in the upper position by a spring and can be re-engaged with the spring 10 only by the operation of a lever. In a further modification a releasable coupling is inserted between the shaft 7 and drum 1.
Patent GB-836556-A (GB)
Title: Improvements relating to the production of fabrics
Inventor: MERCER FRANK BRIAN
IPC: B29C48/05
Filed: 1956-10-26
Abstract: <PICT:0836556/IV (a)/1> The extruded (see Group V) net-like fabric of the parent Specification is modified so that the net strands are integral with and cross each other on opposite sides of a continuous sheet or film.  This is attained by spacing apart the die members. The fabric may be of polyethylene, polyvinyl chloride, copolymers of vinyl chloride with vinyl acetate or vinylidene chloride or of vulcanizable natural or synthetic rubber.
Patent GB-1460162-A (GB)
Title: Benders or brakers
IPC: B29C53/00
Filed: 1974-02-28
Abstract: 1460162 Bending TAPCO PRODUCTS CO Inc 28 Feb 1974 [1 March 1973] 9035/74 Heading B3E [Also in Division B6] A metal or vinyl sheet bender comprises first and second members 16, 17 hinged together, the first offering a workpiece clamping surface and the second a bending surface, an anvil 23 extending longitudinally of member 16, a pressure member 25 extending longitudinally of the anvil to apply pressure to the anvil to clamp the workpiece, co-operating wedge means on the members 16 and 25 engageable by shifting member 25 longitudinally, and means extending between anvil 23 and member 25 to vary the pressure of the anvil on the member. As shown, the bender frame consists of channels 10, 11 to which U-members 12 are bolted. The wedge means comprises wedges 26 on pressure member 25 underlying arms 14 of members 12, the member 16 being mounted on arms 13 of members 12. Leaf springs 31 lift the anvil when the wedge means is not engaged. At each wedge, a threaded nylon screw 41 extends from a threaded bore 40 in the wedge through a hole in the pressure member to bear on the anvil, so that the pressure exerted at each wedge can be adjusted to compensate for wear or misalignments. The operative surface of bending member 17 may include a replaceable vinyl strip, Fig. 4 (not shown).
Patent GB-1046582-A (GB)
Title: Improved method of producing alumina
Inventor: BARRINGTON ROBERT ROSS
IPC: C01F7/441
Filed: 1964-03-04
Abstract: Alumina is produced by forming coherent ball-shaped masses from a partially dehydrated aluminium trihydroxide, separately supplying the coherent ball-shaped masses and a combustible gas to a calcination furnace, and calcining the ball-shaped masses in the furnace by combustion of the gas, with continuous removal of the gaseous products of the calcination, immediately after their production, by sweeping them away from the vicinity of the residual solid material in a cross-flow of combustion gases. Calcination may be effected at a temperature between 1300 DEG  and 1400 DEG  C. and the gaseous products are preferably removed before the temperature of the solid material exceeds 1000 DEG  C.  The ball-shaped masses may be made from an aluminium hydroxide obtained by partial dehydration of an aluminium trihydroxide produced by the Bayer process. The dehydration may be effected by heating the aluminium trihydroxide at 300 DEG  C. to reduce its water content to between 5 and 8% by weight. The ball-shaped masses may contain boric acid in a quantity sufficient to effect volatilization of substantially the whole of the soda content of the aluminium hydroxide during calcination, preferably between 1 and 5% by weight, and may also contain a small proportion of fluoride ion.  They may be produced by grinding the partially dehydrated aluminium trihydroxide mixing the ground material with an aqueous liquid and forming the resulting mixture into ball-shaped masses for example by tumbling in a conventional rotary tabletting pan.  The aqueous liquid may be an aqueous solution of boric acid.  The preferred calcination furnace is described in Specification 1,046,583.  The calcined alumina has a mean crystal size of substantially 2 microns and a compactibility (as defined in the Specification) of substantially 0.350 inch. The alumina produced by this process may be incorporated with less than 10% by weight of conventional fluxing ingredients and fired to produce a sintered high-alumina refractory body.
Patent GB-310512-A (GB)
Title: Improvements in or relating to screening centrifuges
IPC: B04B3/04
Filed: 1929-03-20
Abstract: 310,512. Haubold Akt.-Ges., C. G. April 28, 1928, [Convention date]. Strainer separators; discharging.-A separator has a strainer drub b and a screw conveyer d for the discharge of solids, the parts b, d being rotated at different speeds. The gap between the periphery of the conveyer thread and the interior surface of the drum b is greater at The delivery end h than it is at the feed end g; preferably it increases steadily from the feed end to the delivery end.
Patent GB-330666-A (GB)
Title: Improvements in coin freed delivery mechanism
IPC: G07F11/18
Filed: 1929-03-20
Abstract: 330,666. Frank, A. C. March 20, 1929. No Patent granted (Sealing fee not paid). Sale apparatus; testing cons. - A coin-freed delivery-mechanism comprises a sliding drawer or tray 4 provided with a rack bar 9 and with coin receiving stops 18, 19, the stop 18 being adjustable, while the stop 19 is pivoted and tilts on reaching the station 26<a> to release the coin. The coin shoot is provided with hard steel rollers 21 to limit the size of coin which may be inserted and the inserted coin passes through a slot 17 in a drawer releasing member 11 which is mounted on a fixed pivot 13 and has a stop 10 normally obstructing the rack bar 9. On the initial opening movement of the drawer the coin cams the member 11 clear of the rack bar and moves forward in grooves. An inserted coin of too small a size passes directly between the stops 18, 19 to a return shoot 20. The tilting of the member 11 during the opening of the drawer may be used to obstruct the coin shoot 15.
Patent GB-765833-A (GB)
Title: Process for the manufacture of rubbery adducts and products resulting therefrom
IPC: C08F8/46
Filed: 1955-03-29
Abstract: Rubbery adducts are made by reacting butyl rubber and maleic anhydride at 135 DEG  C. using as accelerator an organic compound having at least one halogen atom of atomic number between 16 and 36 bonded to a trivalent nitrogen atom.  Butyl rubbers specified are those derived from isobutylene and isoprene, butadiene or piperylene. Accelerators listed are 1,3-dichloro -, 1,3 - dibromo -, 3 - chloro - and 3-bromo - 5,5 - dimethylhydantoins; N - bromo-and N - chloro - succinimides and - phthalimides; N,N - dichloro - p - toluene -, N,N - dichlorobenzene -, N - chloro - N - sodio - p-toluene - and N - chloro - N - sodio - benzenesulphonamides; benzoquinone mono- and bischloroimides; 2,6 - dibromo - N - chloro quinoneimine and N,2,6 - trichloroquinoneimine.  The adducts may be vulcanized with polyvalent metal oxides, hydroxides or carbonates, e.g. of Group II metals such as zinc and magnesium, to give products of improved physical properties.  Optional additives which may be added before vulcanization are fillers, pigments and blowing agents and, in particular, carbon black.  The cured products are useful in the manufacture of tyres, hot-water bottles and steam hose.
Patent GB-442702-A (GB)
Title: Improvements in or relating to process and apparatus for making plate glass
IPC: C03B13/04
Filed: 1935-03-23
Abstract: 442,702. Glass manufacture. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Pittsburgh Plate Glass Co. ; 200, Grant Building, Pittsburg, U.S.A.) March 23, 1935, No. 9156. [Class 56] A process for making plate glass consists in continuously supplying a layer of molten glass of substantially uniform thickness over a supply or feed roll, conducting thesheetthus formed into the pass between a pair of sizing - rollers and allowing the sheet to sag and stretch between the feed and sizing rolls, and regulating the speeds of the rollers in such a way that a bulb of plastic glass is constantly maintained at the entrance to the pass between the sizing rolls. The glass flows from a tank furnace through a cooling chamber 2, Fig. 1, and a draw pot 3 whence it is discharged through a slot 4 in the form of a sheet 5, Fig. 7. This sheet is carried over a feed roll 6 and between sizing rolls 7, 8 whence the finished sheet passes over runway rolls 9 into a leer 10. The feed roll 6 is driven at a lower speed than the sizing rolls, so that the sheet 5 stretches and becomes thinner. A bulb or roll 88 of glass is also formed and maintained at the entrance to the pass between the sizing rolls, so that the pass is always completely filled with glass from end to end. The draw pot 3 is mounted above heating flues 11, and the cover of the pot consists of three sections with two intervening walls each of which is independently adjustable in a vertical direction in order to bring the glass in the pot to a uniform temperature across its width. The front wall of the pot comprises an upper member 25 suspended from an overhead crane, and a lower or lip member 28 which is supported on screwed rods 31 to enable it to be adjusted vertically, or to be tilted from side to side to ensure an even flow of glass over the lip. The feed roll 6 is watercooled, and means are provided for adjusting it vertically or for tilting it slightly. The sizing rolls 7, 8 are cooled by circulating air through them. The lip member 28 is preferably provided with a sheath 68 of metal which is resistant to the action of hot glass, and means are provided for tensioning the metal both transversely and longitudinally in order to keep it smooth. Pipes 83 and watercoolers 84, 85 are employed to regulate the temperature of the glass. The pipes 83 are perforated and direct air jets in to the glass, and similar pipes 86 blow air on to the rolls 7, 8. In a modified construction, the feed roll 6 is replaced by a series of rolls.
Patent GB-377622-A (GB)
Title: Improvements in or relating to television apparatus
IPC: H04N7/14
Filed: 1932-03-30
Abstract: 377,622. Television ; wireless receiving-sets ; vacuum apparatus for electric discharges.-MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Zworykin, V. K.; 416, Warwick Road, Haddonfield, New Jersey, U.S.A.) March 30, 1932, No. 9204. Convention date, April 13, 1931. [Classes 39 (i), 40 (iii) and 40 (v).] In a cabinet television receiver simultaneous observation of the image by a number of persons is facilitated by incorporating, preferably in the lid 19 of the cabinet, a plane or convex mirror 17 in which the image may be viewed. In one construction, Fig. 1, the components located in the cabinet 1 comprise a television receiver and amplifier 5, a cathode ray scanning tube 3, with fluorescent end wall 7, and a transparent cover plate 13 for protecting the tube 3. A loud-speaker 25 associated with a receiving and amplifying set for speech may also be incorporated, one or two frame aerials 59 as necessary being provided, or aerials 61 of the " doublet type. In a modification, Fig. 2, adapted for two-way working, in addition to the elements 3, 25 as before, a microphone 43 and amplifier 45 are provided. for speech transmission, and a cathode ray tube 27 for television transmission, while a switch 51 coacting selectively with contacts 53 or 55 permits the tube 3 to be employed either for receiving or for monitoring purposes. For the television transmission an image of the user 21 is projected by the reflector 17 and an adjustable lens 29 upon a photo-active plate 31 within the tube 27, the area under view being defined by an apertured plate 41 mounted on a bellows 41<1> that collapses when the lid 19 is closed. According to the Specification as open to inspection under Sect. 91 (3) (a) the plate 31 comprises an insulating layer of aluminium oxide having on its under surface a conductive sheet which is scanned by the cathode ray, and on its upper surface globules of photoelectric material which, due to the action of the cathode ray, vary the discharge of electrons to a grid located in front of the plate. This subject-matter does not appear in the Specification as accepted.