baber/WOPTO huggingface dataset:
Patent GB-472073-A (GB)
Title: Method and arrangement for reproduction of pictures, especially for television purposes
IPC: C12N1/18
Filed: 1936-06-15
Abstract: 472,073. Image intensifiers; television. MICHAELIS, E. June 15, 1936, No. 16660. Convention date, June 15, 1935. [Classes 39 (i) and 40 (iii)] Light, infra-red or electron images transmitted by television by known means are reproduced by projecting them on to an electrode forming part of an image intensifier of known type which magnifies the image both in size and intensity. The image intensifier may have a photo-electric cathode, a circular or rectangular focusing cylinder, and a fluorescent anode, or the anode may have a circular or rectangular aperture, with a fluorescent coating on the end wall. Additional magnetic focusing coils may be circular or rectangular in cross-section to compensate edge distortion of the electrostatic lens ; the concentrating cylinder may be divided up by thin transverse plates, or the anode opening may be covered by a gauze grid, to maintain uniformity of focusing over the picture. The intensifier may be filled with a mixture of hydrogen and argon. In a modification, the cathode-ray tube of a television receiver is provided with a Lenard window and the electrons themselves impinge on the intensifier cathode ; or the intensifier may be included within the cathode-ray tube. Several intensifiers may be connected in cascade. The Specification as open to inspection under Sect. 91 includes also an image intensifier D comprising a photo-electric cathode C, concentrating cylinder E and fluorescent anode F, which intensifies and enlarges the television image produced on cathode-ray receiver A. R÷ntgen rays may be used to excite the intensifier cathode, and variation in the resistance of the cathode may be utilized to vary its emission. This subject-matter does not appear in the Specification as accepted.
Patent GB-1164537-A (GB)
Title: Improvements in or relating to a Valve for Pneumatic Floating Means
IPC: B65G51/03
Filed: 1967-04-12
Abstract: 1,164,537. Pneumatic floatation conveyers. SPENCER (MELKSHAM) Ltd. 12 April, 1967 [14 April, 1966], No. 16668/67. Heading B8A. [Also in Division F2] An air buoyancy conveyer comprises a plurality of normally closed valves arranged over the floor 7 and arranged to provide jets of air under the control of a device responsive to pressure at the orifice 3. The valve comprises a seat 1, a valve member 2 and a control member 15 which is guided for vertical movement in a bore 17 in the housing and within fixed guides 20-23. A chamber at the top of the housing 4 is divided into upper and lower chambers 13, 11 by a flexible annular wall 14, the chamber 13 communicating with the orifice 3 and the chamber 11 communicating with atmosphere through a duct 12 in one of the legs 44-47 supporting the housing. Operation.-With no load 10 over or adjacent the orifice 3, and with the valve member 2 lying in a recess 49, on applying pressure to the chamber 5, air passes through the valve seat 1, the control member 15 and the orifice 3. A Venturi effect at the outlet of the control member causes a drop in pressure in the chamber 13 and raising of the flexible wall 14 and control member 15. The valve member is entrained in the air flow to engage the seat 1 and is held against the seat by the pressure in the chamber 5. As an article 10 approaches the orifice 3, the pressure of the air film 9 causes the wall 14 and control member 15 to descend, thereby moving the valve member 2 off the seat 1 by prongs 30-32 secured to the control member and allowing air to flow through the orifice 3. When the article 10 has moved away from the orifice, the control member 15 rises and the valve member 2 again engages the seat 1. The system is similarly self-starting if an article is laid on the floor 7 over a valve since the air layer located beneath the article is progressively compressed and causes opening of the valve before the article engages the floor.
Patent GB-255055-A (GB)
Title: Improvements in railroad crossing signals
IPC: B61L29/02
Filed: 1926-07-02
Abstract: 255,055. Hatcher, J. July 7, 1925, [Convention date]. Operating gates and barriers by treadles and the like.-A signal and harrier for use at a railway crossing comprises an arm 14 pivoted to an upright 13 and tending to assume a horizontal position under gravity, but normally held in the raised or clear position shown by a cable 16 passing over pulleys 17 and anchored by a spring 19 to a track rail. The cable passes over and is held up as shown by a rod 6 normally raised by a spring enclosed in a cylinder 8 embedded in the ground. To the upper end of the rod channel-section bars 3 are pivoted, the lower end embracing and movable over rollers 11, Fig. 4, rotatably mounted by ball bearings on bolts 12 secured to the web of the rail, the side portions of the bars 3 being slotted for passage of the bolts &c. The bars 3 are disposed outside the track and are adapted to be depressed, together with the rod 6, by a shoe &c. carried by the vehicle (not shown). The resultant slack in the cable allows arm 14 to fall to the horizontal or danger position. The fall of the arm is buffered by a spring (not shown) disposed in the bifurcated upper end of the upright 13. The arm carries reflecting lenses 15 for cooperation with the headlights of automobiles &c. at night.
Patent GB-163926-A (GB)
Title: Improvements in and relating to steam-heated water-heating apparatus
IPC: F22D1/36
Filed: 1920-06-21
Abstract: 163,926. Codd, T. J., and Johnson, H. June 21, 1920. Feed-water, heating.-A direct-contact preheater H<1> is supplied with steam, for example, exhausted from an engine E, the water then passing through the pump P to a convection heater H supplied with superheated live or exhaust steam before entering the boiler B.
Patent GB-278421-A (GB)
Title: Improvements in electric switchgear
IPC: H02P1/26
Filed: 1926-07-05
Abstract: 278,421. Cox, F. B. July 5, 1926. Automatic circuit breakers. - A switch for motor-starting and like purposes comprises a handle member A<4> which carries a line-contact, a member B<4> operated by the handle and carrying a second line-contact in series with the first, and a member C<4> also operated by the handle and carrying a control contact. In addition pivoted strikers E<4>, F<4> urged by springs e', f<1> respectively operate the contact-members B<4>, C<4> in the opposite direction to that in which thev are moved bv the handle. With the parts in the " off " positions shown in Fig. 3 there is no connection from the member B<4> to the line and in consequence the motor is out of circuit. To close the circuit for starting, the handle must be moved first to the left and afterwards back to the right. The first action puts the member B<4> on its stationary line-contact b<1> and the member C<4> on the starting control contact c<1>; the strikers being simultaneously moved against their springs into positions where they are held by no-volt magnets De, Df as shown in Fig. 1. The second action replaces the member A<4> on its stationary contact a<1> to complete the line and starting circuits as shown in Fig. 2. When prescribed starting conditions have been fulfilled the magnet Df is de-energized, releasing the striker F<4> which moves the member C<4> to the dotted line position on its running control contact c<2>. The magnet D<e> retaining the striker E<4> allows the member B<4> to act as an automatic circuit breaker in case of abnormal currents. The following mechanical modifications of the switch are described : (1) The springs e<1>, f<1> anchored to fixed posts are replaced by springs attached to the handle member. (2) The springs connecting the handle member and the strikers are disposed so as to cross over a dead centre in the closing operations, the springs then acting to hold the strikers in position subject to release by overload devices. (3) The strikers act on latches retaining the contact-members against springs after positive operation by the handle. The invention may be constructionally embodied in a star-delta starter having three three-pole contact-members mounted on a common spindle and enclosed in a casing, with strikers and springs outside and at both ends of the casing. Specification 254,776 is referred to.
Patent GB-1060952-A (GB)
Title: Wide-screen cinematography
IPC: G03B37/00
Filed: 1965-04-21
Abstract: 1,060,952. Panoramic cinematography. CINERAMA Inc. April 21, 1965 [May 4, 1964], No.16792/65. Heading G2E. Cine apparatus projecting undistorted panoramic images on to a wide, deeply curved screen by means of a single projector, comprises optical projection means for introducing a prescribed amount of pincushion distortion into the projected image to compensate for image spill-over of the projected image upon the screen, and optical means for introducing into said image, prior to its projection, an amount of barrel distortion sufficient to compensate for excessive image size reduction produced by the pincushion distortion of the projection means. The compensating pincushion distortion is provided by a cylindrical or spherical projector lens, and further distortion may also be provided by the printer optics. Compensating barrel distortion is provided by the printer and/or camera optics. A pincushion aperture is included in the camera viewfinder when subsequent barrel distortion will be used. The printer optics also provide horizontal compression of the film image to compensate for the non-linear horizontal expansion of the projected image due to the deep curvature of the screen. Further, the use of film exposed with anamorphic systems is possible by means of suitable printer compensation.
Patent GB-718708-A (GB)
Title: Improvements in or relating to indicating apparatus
IPC: G01D15/24
Filed: 1951-07-16
Abstract: 718,708. Thermometers. TAYLOR INSTRUMENT COS. July 16, 1951 [Aug. 8, 1950]. No. 16836/51. Class 97(3) [Also in Groups XIX and XXIX] An indicating, recording and pneumatic retroactive control system in (see Group XIX) may be applied to recording the temperature of material in a tank 65, which temperature may be maintained at a set point by a supply of steam controlled by a diaphragm valve 67 operated by compressed air, the temperature being sensed by a thermosensitive medium in a bulb 69 connected to a Bourdon tube 71 of a transmitter system TR. Compressed air at uniform pressure is supplied from a pipe 78 through a restriction 79 to a nozzle 77 where it escapes under control of a baffle 76 positioned by the Bourdon tube 71 to vary the back pressure in the nozzle to which a relay valve 80 responds to vary the output pressure in a pipe 81 which is fed back to a bellows 75 to reduce the movement of the baffle 76 due to a temperature change and, over a useful span, cause the pressure in the pipe 81 to be proportional to the temperature. The pressure in the pipe 81 is fed to a pneumatic motor 13 and operates a pen arm 9 to draw a time-temperature graph on a chart and indicate the temperature against a scale.
Patent GB-775403-A (GB)
Title: Improved air nozzle
Inventor: DAWSON HENRY LEONARD
IPC: F24F13/26
Filed: 1955-06-10
Abstract: 775,403. Nozzles. HALL & CO., M. June 10,19,55, No. 16836/55. Class 69 (3). An air nozzle for inducing secondary air through a heat exchanger apparatus comprises an expansion chamber 1, fed with air at 5, which curves upwardly at its wide end to provide a rectangular opening 9. Nozzle-pieces 11, 12 are bolted to flanges 10 at the opening, and slots 15 are formed in the meeting faces of the nozzlepieces so as to provide staggered outlets on either side of the centre line of the opening. The outlets are so shaped that the air streams therefrom diverge from the centre line. Internal fins 17 and nozzle securing pieces 6, 7 are provided. Specification 769,989, [Group XIII], is referred to.
Patent GB-529856-A (GB)
Title: Improvements relating to spark plugs
IPC: H01T13/05
Filed: 1939-06-09
Abstract: 529,856. Sparking plugs. SMITH, R. A. (Breeze Corporation, Inc.). June 9, 1939, No. 16930. [Class 7 (iv)] Heat transmission to the outer end of the plug and its cable connection is reduced by making the screening sleeve 6, the spring K, bush 8, terminal J and rod 10, or any or some only of these members, of material of low thermal conductivity, such as that known under the Registered Trade Mark " Nichrome." The sleeve 6 is formed with flange 7 forming both a heat baffle and a means for supporting the sleeve in a lower ventilated casing 1 clamped between the plug casing and the cylinder head. The lead is supported by a metal-cased insulating cap C retained by a spring bail R. Specifications 397,661, [Group XXXVI], and 465,425 are referred to.
Patent GB-477009-A (GB)
Title: Improvements in and relating to illuminated barriers and the like
IPC: B61L29/02
Filed: 1936-06-18
Abstract: 477,009. Lamps for railroad or street barriers. JULIUSBURGER, H. June 18, 1936, No. 17018. [Classes 75 (iii) and 75 (iv)] [Also in Group XVIII] A railroad or street barrier, comprising a bar a movable from an open to a closed position and vice versa, carries one or more luminous electric discharge tubes e arranged parallel to the bar or in the shape of a traffic signal, and has an electric switch h which switches the tube or tubes on or off as the bar is being moved to the closed or open position. As shown, dicharge tubes, e.g. neon or mercury vapour tubes, are mounted in boxes c which are suspended by springs d from brackets b attached to the bar a. In another form, a discharge tube is shaped as a triangle and mounted in a triangular box carried by a resilient arm. U.S.A. Specification 1,860,685 is referred to.
Patent GB-236574-A (GB)
IPC: G11B23/04
Filed: 1925-07-02
Abstract: 236,574. Vox Maschinen-Akt.-Ges. July 3, 1924, [Convention date]. Addition to 236,237. Magnetic machines. -Means are provided for preventing displacement of the spools carrying the record wire in the detachable casing described in the parent Specification when the casing is separated from the machine. These means comprise a clutch element N mounted on the spool A and a clutch element O slidably engaged by a cross pin K with a socket L secured to the casing and pressed by a spring I into engagement with the element N. The spool is thereby held against the opposite side of the casing, but when the casing is applied to the machine the driving spindles D pass through the spools and press the clutch elements 0 out of engagement. The casing is preferably divided horizontally into two shells fitting on to one another.
Patent GB-273330-A (GB)
Title: Improved means for exciting cascaded commutator machines with the supply circuit frequency
IPC: H02K17/38
Filed: 1927-06-27
Abstract: 273,330. Siemens - Schuckertwerke Ges. June 28, 1926, [Convention date]. Alternating-current commutator and induction machines.-The excitation at supply frequency of a commutator machine cascaded with an induction machine for phase compensation or speed control is affected by a set comprising an asynchronous motor driving an asynchronous generator which provides the excitation for the cascaded commutator machine and is itself provided with a mechanically coupled cascaded commutator a machine excited from the main supply circuit. The regulation of the main machine is carried out by variation in the excitation of the commutator machine cascaded with the asynchronous generator. In the form shown in Fig. 1, the main asynchronous machine 1 is cascaded with the commutator machine 21 provided with a compensating winding 3 and excited through its rotor at circuit frequency from the asynchronous generator 4 of the exciting set. This set is driven by an induction motor 6 and comprises also a commutator machine 5 cascaded with the asvnchronous generator, compensated at 8 and rotor-excited at circuit frequency through a regulating transformer 7. Thus, the excitation transmitted to the machine 2 is also at circuit frequency, its valve and phase being controlled by means of the transformer 7. It is shown in the Specification that this transformer need be designed to carry only about 3 per cent of the output of the machine 2. By means of a current transformer 9 in the circuit of the main machine 1 and a further transformer 18 in the secondary side of the transformer 7, the system is compounded to allow speed control of the machine, the excitation of the machine 2, for such control, being varied from a given maximum to zero and reversed when hyper-synchronous speeds are reached. The machines 4, 5 may be directly driven by the main machine 1 instead of by a separate motor 6. Where the main machine is used only as a wattless current machine and a large speed range is not required, the driving motor 6 and asynchronous generator 4 may be combined, as shown in Fig. 2 at 10, choking coils 11 being connected in the circuit of the line-fed stator coils of the combined machine. The excitation of the machine 2 is derived from separate stator coils 12, and by varying the exciting current in the secondary side of the machine 10 bv means of the commutator machine 5 the wattless current taken by the machine 10 from the .supply. mains and the choking effect of the coils 11 are varied. Hence the exciting voltage in the windings 12 may be controlled. The exciter sets above described mav be used in combination with direct excitation of the machine 2 from the supply mains, the direct excitation, for instance, being used for phase compensation and the special exciting set for speed control.
Patent GB-1446852-A (GB)
Title: Rotary machines
IPC: F04B27/06
Filed: 1973-04-10
Abstract: 1446852 Cylinders ANIDYNE CORP 7 Aug 1973 [12 Aug 1972 14 Oct 1972 10 April 1973] 37632/73 4753/72 and 17082/73 Divided out of 1446851 Heading F2T [Also in Division F1] The part-spherical surface 36 of the rotor 13 of a machine, e.g. an I.C. engine, pump, motor or compressor, is sealed with respect to the partspherical inner surface 29 of the stationary casing by circular sealing rings 44 provided in grooves which surround the ends of a cylinder 12. Sealing strips 71, 77A, 77B in the rotor cooperate with the rings 44, one with another or with sealing rings 74, 75 in rotor end plates 40. The rings 44 may take various forms Figs. 16 to 19 (not shown), a split ring (334), Figs. 18 and 19, having its gap closed by a triangular packing piece (338) urged by friction during rotor rotation into engagement with the ring ends (337).
Patent GB-199256-A (GB)
Title: Improvements in calendars
IPC: G09D3/10
Filed: 1922-06-21
Abstract: 199,256. Robinson, P., and Robinson & Sons, Ltd. Jan. 21, 1922. Date indicators.-A date indicator arranged to show the current date and particulars of the succeeding seven days has the date indications printed on a continuous paper strip wound upon a roll or folded in zig-zag fashion in a sheath mounted in the back of a card and adapted to be drawn across the back of an opening in the card to exhibit the particulars for the eight days. As shown the paper strip 1 is mounted on a reel 2 having end discs 8 secured to cover discs 9, 10 and contained within a casing 5 formed of two parts 5<b>, 5<c>, the part 5b being open ended and fitting on the part 5<c> like a pull-off lid. The casing 5 is mounted in the angle between the sloping card 3 and its base 12 and may be secured in position by adhesive and a gummed paper strip 16, and the paper strip 1 passes through a slot 6 in the casing 5 and through a slot 15 in the backing card 13 which is separated from the card 3 by distance pieces 14. The particulars for the eight days are exhibited through an aperture 4 at the top corners of which are printed the words " To-day " to draw attention to the current date. The used portion of the strip can be torn off as required. If a folded paper strip is employed it is contained in a sheath secured to the backing and open at its lower end to enable the strip to be withdrawn. According to the Provisional Specification a triangular projection may be provided at the upper edge of the backing card so that when the discarded part is removed a projecting portion is left at one side of the triangular projection to facilitate the pulling of the strip across the aperture in the card.
Patent GB-575616-A (GB)
Title: Manufacture of polymeric materials from unsymmetrical dichloroethylene
IPC: C08F4/00
Filed: 1942-12-02
Abstract: Polymeric materials are prepared by causing vinylidene chloride, by itself or together with one or more other polymerizable compounds containing the group >C=CH- which are not present in preponderating amount, to polymerize in an aqueous medium in the presence of persulphuric acid or a water-soluble persulphate and of a water-soluble thiosulphate.  The invention is carried into effect in the manner described in Specification 573,369 except that the water-soluble compound capable of taking up molecular oxygen is replaced by the water-soluble thiosulphate. In examples, vinylidene chloride by itself or in the presence of vinyl chloride is polymerized in aqueous emulsion in the presence of ammonium persulphate and sodium thiosulphate.  Specifications 525,048 and 532,308 (both as accepted and as open to inspection under Sect. 91) also are referred to.
Patent GB-683438-A (GB)
Title: An improved streamline rudder for watercraft
IPC: B63H25/38
Filed: 1950-07-10
Abstract: 683,438. Rudders. WERTEFRONGEL, M. July 10, 1950. [July 29, 1949] No. 17173/50. Class 114. Each side of a streamlined sectioned rudder has blades 3, extending rearwardly from the widest portion, and having horizontal portions 4, 5, whilst the central portion inclines downwardly in a rearward direction. The blades may be of plate form, of stream-lined form, or made from a series of fins placed in stepped relation.
Patent GB-544113-A (GB)
Title: Improvements in or relating to garment display stands
IPC: A47F8/02
Filed: 1940-12-03
Abstract: 544,113. Lay figures. ZIMMERMAN,L. Dec. 3, 1940. No. 17216. [Class 52 (v)] A display stand for garments has a representation of shoulders 15 so mounted relatively to the stand that they may be adjusted in at least two dimensions with respect to the stand in order to give a different appearance or fullness to a' garment when used in conjunction with a body or bust piece 30, Fig. 2, mounted on the stand. The stand may be telescopic and the body piece mounted thereon as described in Specification 511,129. The shoulder piece may be mounted on a tubular rod 8, Fig. 3, capable of horizontal and rotational adjustment on the stand 3 and clamped by a screw 9. The rod 8 carries a tubular piece 11 at right angles thereto in which a rod 12 carrying the shoulder piece may be rotated and retained by a screw 14.
Patent GB-1235447-A (GB)
Title: Device for connecting a cable to a lever
Inventor: CAMP JOHN WALTER ALDRIDGE
IPC: F16C1/14
Filed: 1970-04-11
Abstract: 1,235,447. Cable control mechanisms. FORD MOTOR CO. Ltd. 11 April, 1970, No. 17332/70. Heading B7E. [Also in Division F2] In a pivotal connection between the end 12 of a clutch pedal lever (10) (Fig. 1, not shown) and the movable core 16 of a Bowden cable 13, the head 34 of an end fitting 17 on the core 16 is in rolling contact with a transverse ridge 27 of a plastics retaining member 18, e.g. of nylon, mounted on the lever. A semi-cylindrical projection 35 of the end fitting 17 fits loosely in a rectangular opening 21 in the member 18 to locate the head 34. The retaining member 18 is a snap fit in an opening 23 of the lever. The core 16 is put into the opening 21 via a slot 25 in the lever end 12 and a slot 22 in the retaining member 18, and the head 34 is then snapped under retaining lugs 31 on posts 30 of the member 18.