baber/WOPTO huggingface dataset:
Patent GB-184666-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H33/98
Filed: 1921-07-13
Abstract: 184,666. British Thomson - Houston Co., Ltd., (General Electric Co.). July 13, 1921. Oil switches.-To minimize the danger due to - rupturing high-power circuits by oil-switches, in addition to air cushions above the oil surface, baffles of cooling-material, such as gravel, are provided to split up the products formed. In one construction, Fig. 1, the baffle has a top portion 18 with top and bottom plates 22, perforated and carrying between them gravel 23. A depending part 19 of the baffle rests on the base of the tank 10, but is lifted, when the switch is opened, by the expansion of gas, which passes through the gravel and out of the vents 17. In a modifica.- tion, a stationary baffle may be employed, stretching below the oil surface and having an air space between it and the walls of the tank. Wire netting may also be placed between the gravel and its perforated plates to strengthen the baffle. The explosion-chamber switch, Fig. 4, is put in an outer oil-tank, and consists of an explosion-chamber 34, depending from the fixed electrode 33, and an outer shell 42, with gravel 44 between them. Valves 35 are opened by the escaping gases which then pass through the gravel 44 and out into the main tank. Pot 34 is filled with oil and the oillevel of the rest of the tank is shown. The electrode 52 is hollowed out to allow the oil to escape, thus furnishing an arc-quenching oil-blast. Fig. 5 shows a double oil-blast switch, the electrodes being 63, 64. Here, oil follows the electrode 64 up through the hole in baffle 77 and oil also is forced out of chamber 67 as the arc rises through the insulator 68. Gases pass through the gravel 74 and holes in baffles 75, 76 to the vents 62. Fig. 6 shows an electrode 83 which moves up through a funnel-shaped hole 87 in an insulator 84. Oil follows it through orifices 88, 89, the screen 85 keeping these jets free of gas. The gases are passed through the gravel 94 and out of a tube 95 also filled with gravel. A stuffing-box 98 prevents gases escaping around the electrode 83.
Patent GB-1247587-A (GB)
Title: Resilient corner bead
IPC: E04B1/98
Filed: 1969-04-14
Abstract: 1,247,587. Cornices, door frames. CONSTRUCTION SPECIALITIES Inc. 14 April, ,1969 [19 April, 1968], No. 18978/69. Headings E1B and E1J. A resilient glass-fibre reinforced synthetic resin cornice B or door frame C is movably secured to a wall by flanges 24 entering recesses 32 formed by fixing members R. The member C is additionally retained by a clip 41 which also limits the movement of the resilient member towards the protected surface. Clips may project from the mortar between adjacent courses of brickwork.
Patent GB-1201544-A (GB)
Title: Apparatus for automatically determining the total pitch error of gears or the like
Inventor: HOFLER WILLY
IPC: G01B7/28
Filed: 1968-04-23
Abstract: 1,201,544. Recording apparatus. W. HÍFLER. April 23, 1968 [May 5, 1969], No.19035/68. Heading G1J. Apparatus for recording the total pitch error of gears wherein the individual pitch errors of the teeth are measured and represented electrically to control the movement of one pen carriage 1 along a slide 5, returning it to its starting position between each measurement while a second pen carriage 6 is positively connected to move with the carriage 1 only on its outward excursions being disconnected therefrom and locked during its return movements. When the positive connection between the carriages 1, 6 is required a magnet 8 is energized and clamps the carriage 6 to a metal rail 3 rigidly connected to the carriage 1 and guided in a bushing 7 secured to the carriage 6. After each individual pitch error is recorded the magnet 8 is de-energized and another magnet 15 is energized to pivot a lever 14 and so press a rod 12 thus locking a bracket 11 secured to the carriage 6 against a housing part 9. If a record of individual pitch errors is not required, the two carriages may be moved in parallel paths by cables round pulleys that may be coupled and decoupled, Fig. 3 (not shown).
Patent GB-314675-A (GB)
Title: Improvements in and relating to terminal connections for electric heating elements
IPC: H05B3/06
Filed: 1928-07-02
Abstract: 314,675. Walker, Hunter & Co., Ltd., and Walker, J. July 2, 1928. Binding - posts; terminals, mounting.- Connection is made between a heating resistance 2 and a lead 9 by means of a strip 7, the resistance wire being passed through a hole 6 in the former and connected to one end of the strip by threading the wire through the strip which is then folded thereon and compressed. The strip 7 is then passed through a lug 3 on the rear of the former 1, the folded end being drawn tightly into a recess 5 in the lug and retained therein by bending the strip at right angles against the opposite side of the lug. The other end of the strip is folded and the lead 9 inserted in the fold is secured by a bolt 11.
Patent GB-491342-A (GB)
Title: Improvements in kinematographic apparatus
IPC: G03B19/18
Filed: 1937-07-09
Abstract: 491,342. Kinematograph apparatus. BORMANN, O., MIHALY, D. VON, and WEHLER, R. July 9, 1937, No. 19126. Convention date, July 10, 1936. [Class 97 (i)] In continuous-feed apparatus means is provided for neutralizing play in toothed gearing connecting the compensator and the film-feeding means. As shown, the compensating prism 1, having as many faces as the sprocket 18 has teeth, is carried on a driven shaft 12 driving the sprocket through a gear 15. Gears 10, 11, free on the shaft 12 are connected to pins 13 on the shaft through springs 14 tending to rotate the gears in opposite directions, both gears engaging the same teeth of the gear 15 to drive the sprocket 18 without play. Alternatively the shaft 17 may be driven. In a modification, the gears 10, 11 are replaced by a single gear, and the shaft 12 carries a disc engaging an adjustable brake band to cause the shaft 12 to lag during driving and thus take up play. The band may engage the shaft 17. Alternatively an additional friction drive may be provided between the two shafts, comprising an endless band passing over two pulleys, one fixed to the shaft 12, and the other spring-pressed against a friction disc on the shaft 17. Specifications 466,058 and 472,013 are referred to. The Specification, as open to inspection under Sect. 91, describes also the provision of circular centrifugal masses on the two shafts which each have a gear engaging a common driving worm ; the prism may be mounted between two centrifugal discs. The shafts may also be connected together directly by a connecting rod. This subject-matter does not appear in the Specification as accepted.
Patent GB-567519-A (GB)
Title: Improvements in or relating to methods of and apparatus for separating sheets
IPC: B65H3/48
Filed: 1943-11-18
Abstract: 567,519. Feeding sheets. STEVENS, A. H. (Dexter Folder Co.). Nov. 18, 1943, No. 19290. [Class 100 (i)] Sheets fed from a pile P are subjected to a preliminary separation by means of air blasts emitted from slits 11, 12 in angular boxes 10, the slits being perpendicular to the plane of the sheets so that the blasts impinge on the pile edges, preferably at both the rear and rear side edges of the pile at each rear corner thereof. The boxes 10 are carried by air tubes 15 adjustably supported by screws 19 upon brackets 18. Normally, the slits extend above the top of the pile so that as a sheet is raised a greater quantity of air is blown under the top sheets. The blasts are controlled by baffles preferably constituted by means of the face of each wall of box 10 adjacent to the edges of the pile, and the baffling effect is increased by retaining bars 20, 21 which secure the boxes in position. The boxes and the bars 20, 21 can rise relatively to the bracket 18, and the bars are guided vertically by a coverplate 23 secured in position by bolts 24 engaging the bracket 18. To prevent the top sheet from rising too highly, an adjustable stop 27 is arranged near each rear corner of the pile, and the sheet is finally separated completely from the pile by means of a suction cup 33 or other separator, and other jets of air may assist in the completion of the separation.
Patent GB-147229-A (GB)
Title: Improvements in coke ovens
IPC: C10B5/02
Filed: 1920-07-07
Abstract: 147,229. Otto & Co., Dr. C. July 14, 1916, [Convention date]. Coke ovens.-In a vertical-flued coke oven which can be heated either by rich or poor gas, recuperator and regenerator units for preheating the gas and air respectively are associated with each heating-flue. In the oven shown, the heating-flues 3, 4 are connected in pairs. Beneath each oven are two rows of regenerator units 5 or 6, and beneath each heating-wall a row of recuperator units 7 or 8. Gas, either rich or poor, is supplied to the recuperators from mains 9 and 10, and beneath each row of regenerator units is a flue 13 or 14 through which air is supplied or waste gases exhausted according to the phase of operation. The recuperator units may consist cf vertical passages as shown on the left-hand portion of the Figures, or may be built up of perforated bricks as shown in the right-hand portions.
Patent GB-577076-A (GB)
Title: Improvements in valves for fluid control
IPC: G05D16/10
Filed: 1943-11-19
Abstract: 577,076. Valves. PARKER, A. LA R. Nov. 19, 1943, No. 19323. [Class 135] A valve for controlling and distributing pressure fluid comprises a casing 11 with a pressure fluid inlet at the end 24, an exhaust port at the other end, an intermediate distributing port 34, a sleeve insert 25 provided with a seat 30 for the inlet valve between the inlet and distributing ports, an inlet valve member guided by the insert and formed with a skirt 26 and apertures 31 adjacent the skirt, an exhaust valve member 28 constituting an extension of the inlet valve and located between the distributing and exhaust ports, and an actuating element 36 which provides a seat 37 for the exhaust valve, the actuating element closing communication between the distributing and exhaust ports while shifting the inlet valve to put the inlet and distributing ports into communication. In the form shown, two valves are actuated from a common shaft 13 to supply pressure fluid to, or exhaust it from, the two sides of a piston of a fluid motor. As the shaft is rotated by its handle 14, a cam 43 on the shaft moves the actuating sleeve 36 into contact with the valve member 28 to out off the distributing port 34 and the line leading to the motor from exhaust, and continued movement of the sleeve by the cam pushes back the valve member against a spring 29 to open the inlet valve and allow pressure fluid to flow to the motor. Pressure fluid enters at the back of the member 28, flows through apertures 31 in the skirt, through ports 33 in the sleeve 25, and out through port 34 to the motor. Return fluid flows in through port 34, pushes back the sleeve 36 which has now been released by its cam, and flows out through ports 38 into the chamber housing the shaft 13, and so to the exhaust port. The shaft carries a second; staggered cam 43a to actuate the other valve 28a which controls the flow and return of fluid to the other side of the piston of the motor.
Patent GB-536289-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/66
Filed: 1939-07-03
Abstract: 536,289. Television. SCOPHONY, Ltd., and OKOLICSANYI, F. July 3, 1939, No. 19335. [Class 40 (iii)] [Also in Group XX] In order to increase the distance of projection of receivers employing a supersonic-wave lightmodulating device, an intermediate frame image (i.e. one having definition in the frame scanning direction) is formed by a lens 7 having focusing power in the line-scanning direction, a slowspeed scanner, and a lens 14 having focusing power in the frame-scanning direction, an optical projection system 21, 22 forming a final frame image of the intermediate image. The projection system comprises a field lens 22 having power in the frame-scanning direction, in the plane of the intermediate image. The lens 14 may have power in both directions. In a modified system, the light source flashes for a short period once every line as in Specification 474,970, and the lens having focusing power in the line-scanning direction forms an image of the cell in the plane of the final image.
Patent GB-983300-A (GB)
Title: Process for the manufacture of shrinkable terephthalic acid/glycol polyester films
IPC: B29C55/14
Filed: 1961-05-29
Abstract: 983,300. Stretching polyester films. KALLE A.G. May 29, 1961 [May 28, 1960], No. 19359/61. Drawings to Specification. Heading B5B. Terephthalic acid glycol polyester films in which ethylene glycol predominates as glycol component of the polymer chain and which are amorphous, unoriented, and free from plasticizers and/or other additives are stretched consecutively in the transverse and longitudinal directions in either order at 80-95 C., first in one of these directions at a stretch ratio of 2: 1 to 3: 1 and allowed to cool either spontaneously in the atmosphere or with artificially accelerated cooling to a temperature below the second order transition point of the polyester, while being kept under sufficient tension in said direction to prevent shrinkage in that direction. They are then stretched in a direction perpendicular to the direction of the first stretching step at a temperature not exceeding that of the first stretching step and at a stretch ratio of 1À5: 1 to 5: 1. The films are then cooled while kept under sufficient tension to prevent shrinkage in either of these directions. The second stretching step may be effected at a temperature 3 to 8 C. below that of the first stretching step. The biaxially stretched film may be heat set while preventing it from shrinking in either direction at a temperature above the highest temperature applied during the stretching steps, but below the temperature at which the film is subsequently to be heated to cause it to shrink. The present invention is distinguished from prior art methods of biaxially stretching polyethylene terephthalate films in that a cooling step is interposed between two stretching steps. The films are preferably stretched transversely before they are stretched longitudinally. The biaxially stretched films shrunk by at least 30% in both directions when heated to 90 C. without restraint. This renders them useful for packaging articles of irregular shape, as the films can be shrunk on to the articles and wrinkling of the film thereby prevented.
Patent GB-1140161-A (GB)
Title: Improved sector type friction disc brake
Inventor: MARCHERON CLAUDE LOUIS EDOUARD
IPC: F16D65/12
Filed: 1967-04-27
Abstract: 1,140,161. Disc brakes. SOC. HISPANOSUIZA-LALLEMANT. 27 April, 1967 [5 May, 1966], No. 19427/67. Heading F2E. A disc brake comprises at least one annular friction disc 1 consisting of a plurality of sectors 2a, 2b, 2c, 2d &c., interconnected by assembly means permitting a degree of circumferential play. The assembly means includes, on the two facing radial edges of any two adjacent disc sectors, a male portion 4 and a co-operating female portion 7. The male portion 4 of each sector consists of at least one tooth the inner and outer flanks 5, 6 of which are perpendicular to the disc radius passing through the zone of the co-operating male and female portions. The female portion 7 of each sector consists of a least one, male portion matching recess. In the construction shown the assembly means further includes a pin 12 which is a loose fit in holes 10, 11 in the male portion 4 and parts of the sector adjacent the female portion respectively. The end 13 of the hole 11 is blocked by a weld spot 14. The holes 11 may be open at inner and outer peripheries of the sectors. The sectors are further provided with tenons 3 adapted to cooperate with a groove in the rim of a vehicle wheel. In a further embodiment (Fig. 3, not shown) the sectors are provided with trapezoidal friction pads and tenons on their inwardly facing edges, the tenons co-operating with a groove in a non-rotating part of the disc brake.
Patent GB-793406-A (GB)
Title: Socket wrench
IPC: B25B13/44
Filed: 1956-06-25
Abstract: 793,406. Wrenches. DELISO, J. J. June 25, 1956, No. 19637/56. Class 61. A socket wrench comprises a solid shank 12<SP>1</SP> having a longitudinal slot 18 at one end, an enlarged recessed cylindrical head 16 on the shank being bisected by the slot, the shank being slightly tapered at 22 adjacent the head and a cylindrical sleeve on the shank having an interior diameter slightly less than the major part of the tapered portion of the shank when the tapered portion is uncompressed, the sleeve having a circular edge at one end to bear on and compress the tapered portion of the shank when the sleeve is moved to engage the sleeve edge with the tapered portion. The shank 12<SP>1</SP> is mounted in a handle 10. The shank may be solidly fastened in the handle or it may be removably connected by means of a ball and detent 14.
Patent GB-516640-A (GB)
Title: Improvements in or relating to pivotal joints for electric fittings
IPC: F21V21/26
Filed: 1938-07-02
Abstract: 516,640. Pivotal joints. COOPER, H. C. July 2, 1938, No. 19662. [Class 65 (ii)] A pivotal joint for electric fittings consists o two members 11 formed from sheet metal provided on the edges of the lower parts with teeth 14 which interengage when the two members are bent and brought together to form a cylinder. The lugs 10 are provided with holes 12 for the pivot pin. Instead of forming it from two pieces, it may be formed from one. The joint may be connected to a tube &c. 18 by a sleeve 16, 17 surrounding the joint and tube. In another form, the joint has clamps along.the two edges by which it is fixed to an inner tube. In another form it has a circumferential groove by which it is kept in an outer sleeve by a pin mounted in the sleeve. In another form, its lower edges have teeth by which the joint is attached to a toothed base plate. The teeth may be of various shapes.
Patent GB-1249522-A (GB)
Title: Improvements in electric switches for domestic installations
IPC: H01H13/28
Filed: 1969-04-17
Abstract: 1,249,522. Snap-action switches. LEGRAND S.A. 17 April, 1969 [30 May, 1968], No. 19674/69. Heading H1N. Hand pressure on a flexible operating plate 3 or 31 causes a rockable arm f, fa, or #<SP>1</SP>, f<SP>1</SP>a, to pivot between two stable positions and actuate the contacts B, C, or B<SP>1</SP>, C<SP>1</SP>, of an "on"-"off" or changeover switch via one of the elongated blades 8, 8a, or 8<SP>1</SP>, 8<SP>1</SP>a, movable with the arm. Successive hand pressures cause snap-actuation between two positions. The rockable arm f, fa, is a conductive movable contact-carrying arm actuated via the flexible blades 8, 8a, engageable alternately on bearing-surfaces 9, 9a, formed on a part 11 fixed to the centre of plate 3, the arm being urged into each stable position by an omega spring 7. The rockable arm #<SP>1</SP>, f<SP>1</SP>a, has integral blades 8<SP>1</SP>, 8<SP>1</SP>a, and is of plastics material, and is fast with a shaft 18 which carries a rockable arm 19 with an elbow 20, Fig. 13 (not shown), to which is attached a tension spring 25 urging a pivoted movable contact-carrying plate 22 between its two stable positions via a central tongue 23 of the plate.
Patent GB-741367-A (GB)
Title: Improvements in or relating to combined table/wringer for domestic use
Inventor: BEUKERS WILLIAM HENRY
IPC: D06F45/00
Filed: 1952-08-05
Abstract: 741,367. Table legs. FLEETWAY MANUFACTURING CO., Ltd. Nov. 4, 1953 [Aug. 5, 1952; March 3, 1953], Nos. 19712/52 and 5904/53. Class 52(2). Detachable legs 10 for a table housing a wringer are of angle section, or have anglesection tops, the flanges 15 engaging the vertical surfaces at the corners of the table underframe and being screwed thereto by diagonal studs or U-bolts 24. Specification 682,948, [Group VIII], is referred to.
Patent GB-710830-A (GB)
Title: A process for the preparation of cyano compounds from the waste liquors of fermentation indutsries
IPC: C01C3/00
Filed: 1952-08-06
Abstract: Cyano compounds are recovered from waste liquors of fermentation industries by burning the concentrated waste liquor, e.g. 50 to 60 per cent. dry solids content, with a limited amount of air so that all or the greater part of the potassium sulphate in the liquor is reduced to potassium sulphide as in Specification 647,866, thereby simultaneously converting the nitrogen compounds to cyano compounds which are recovered from the ash obtained. Recovering may be by fractional crystallization but preferably the ash, dissolved in water, is treated as in Specification 647,866 by treatment with carbon dioxide to yield a gaseous mixture of hydrogen cyanide and hydrogen sulphide which are separately recovered.  The potassium sulphate is converted to the carbonate. The hydrogen cyanide may be separated from the hydrogen sulphide by washing followed by fractional distillation and optional conversion with caustic soda to alkali metal cyanide or the hydrogen cyanide may be reacted with iron salts or oxides which are then treated with lime to form calcium ferrocyanide.  The latter may be converted to potassium ferrocyanide with potassium chloride and carbonate.
Patent GB-689257-A (GB)
Title: Improvements relating to electrical change-over switches
IPC: H01H9/00
Filed: 1950-08-09
Abstract: 689,257. Snap-action switches. MONNHAMPS, A. Aug. 9, 1950 [Aug. 9, 1949], No. 19837/50. Class 38 (v) A switch adapted for the rapid and alternate connection of a conductor 1 to one of two conductors 2, 2a, comprises two banks of fixed and movable contacts, Fig. 4, each having a main contact 3, or 3a and auxiliary contacts 4 .. 8 or 4a .. 8a which are in parallel therewith and in series with a contact impedance, such as an inductance 9. The movable contacts, four being shown in Fig. 1 at 40, 41, 40a, 41a, are resiliently mounted on rods 20, 20a between stops 32, 33, and cooperate with fixed contacts 47, 48, 47a, 48a, the auxiliary contacts having series blow-out coils 49 formed therein. In the closed position, the stops 33 are spaced from their corresponding movable contacts by increasingly large gaps x, y so that the contacts are engaged and disengaged progressively on rectilinear movement of the rods. The latter are linked by a rocker arm 23 co-operating with a cam 28 on a shaft 29, so that the rods move simultaneously in opposite directions to operate the two banks of contacts simultaneously, i.e. when a contact in one bank opens, the corresponding contact in the other bank closes. The shaft 29 is rotated to-and-fro through a limited angle by a mechanism comprising an arm 52 loose thereon and connected to an operating arm 54, a slotted arm 55 fixed to the shaft, and an arm 58 loose on a spindle 59 and having a pin 57 engaging in the slot 56, the parts being held in the extreme positions e.g. that shown, by a spring 65 connected to the pin 57 and to the outer end 53 of the arm 52. Rotation of the arm 52 by reciprocating movement of member 54, eventually moves the spring across the spindle 59 so as to pivot the arm 58 and thus the arm 55 and shaft 29. A toothed segment 62 fixed to arm 52 rotates a pinion 61 having a pin 63 adapted to engage the arm 58 to provide positive actuation if the spring fails.