baber/WOPTO huggingface dataset:
Patent GB-943970-A (GB)
Title: Electromagnetic testing of materials
Inventor: HASLETT ROY WILLIAM GEORGE
IPC: G01N27/90
Filed: 1961-04-21
Abstract: 943,970. Electric tests. KELVIN & HUGHES Ltd. April 4,1962 [April 21, 1961], No. 14615/61. Heading GIN. Eddy-current testing apparatus includes a test coil 18 within which a specimen can be disposed, a bridge circuit 17 having a specimen arm including coil 18 in series with a resistor 21 whose resistance is large relative to the test coil reactance at all test frequencies, and a balance arm having resistance 22 and reactance 23,the resistance being large relative to the reactance at all test frequencies, means for applying an A.C. test signal of voltage amplitude inversely proportional to frequency across the bridge so that the out-ofbalance voltage of the bridge has reactive and resistive components representing respectively the departure SL of the inductance of the test coil from its value at balance and the ratio SR/W of the departure of the resistance of the test coil from its value at balance to the test frequency w, and a phase-sensitive indicator 34 to indicate the reactive and resistive components. At test signal variable from 50 c/s to 10 kc/s is produced by mixing the outputs from variable oscillator 10 and fixed oscillator 11 in frequency changer 12. The test signal is applied to resistor 14 and capacitor 15 in series. Resistance 14 is made large (at least ten times ) compared with the reactance of capacitor 15 at all test frequencies, so that the voltage amplitude across capacitor 15 is inversely proportional to frequency. This voltage is applied across the bridge diagonals through amplifier 16, phase inverter 29 and cathode followers 28, 30. Any output is converted to 20 kc/s in frequency changer 31 and applied to the deflection plates of a C.R.T. 34. The beam traverses a circular path at 20kc/s with a radius proportional to the bridge output voltage. The output of amplifier 16 is converted to 20 kc/s, phase shifted at 41, differentiated at 44 and applied to a grid 46 of the C.R.T. to provide "Bright-up" once every cycle. The angular position of the bright spot depends on the phase displacement of the bridge output, so that its coordinates represent the reactive and resistive components. The bridge is initially balanced with a standard specimen and switches 24, 25 are provided for calibrating the display. A capacitor and resistor may be used in a balancing arm which replaces resistor 26. Resistor 22 and reactor 23 are then replaced by a fixed resistor. The F÷rster curve produced by the CRT provides information about the dimensions and physical characteristics of the specimen. A partly opaque screen 48 may be provided, any unacceptable specimen producing a trace which falls outside the opaque portion and operates an alarm 50. Specification 836, 723 is referred to.
Patent GB-119697-A (GB)
Title: Improvements in or relating to Blow-pipe Burners.
IPC: F23D14/46
Filed: 1917-10-10
Abstract: 119,697. Acetylene Equipment Co., (formerly Acetylene Illuminating Co.), and Fox, L. M. Oct. 10, 1917. Blowpipe burners.-In an oxy-acetylene &c. welding or cutting burner provided with an extension piece adapted to be readily attached at one end to the burner body and at the other to the tip or nozzle, the extension piece estab ishes communication between the oxygen nozzle of the body and the injector, which is carried by the rear part of the tip, and also between the combustible-fluid conduit of the body and the annular space between the injector and the tip. In the form shown, the straight or other extension piece C screws on the body A and encloses a pipe C<1> which is held in position between the rounded end of the oxygen nozzle A<2> and a conical seating in the injector B by a union nut b<1> which connects the tip B' to the tube C. The enlargements c<1>, c<2> at the ends of the pipe C<1> are square or otherwise formed to permit of the passage of acetylene through the space a<2>, and are respectively formed with a rounded nozzle c<1x> and a conical seating. The cock A' is arranged at the forward part of the handle as described in Specification 119,698.
Patent GB-1086017-A (GB)
Title: Carrier amplifier system
IPC: H03D1/22
Filed: 1966-04-04
Abstract: 1,086,017. Transistor amplifying circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 4, 1966 [April 19, 1965], No. 14757/66. Heading H3T. In an amplifier of the type in which the signal to be amplified is modulated on to a carrier, the demodulator is clamped to the modulator and comprises a high-pass filter in a negative feed-back loop and also an output stage which includes a lowpass filter. Slowly varying D.C. from input terminal 1 is applied to A.C. amplifier 32 via capacitor 14 and a " chopper " comprising series and shunt photoresistors 2, 3 respectively, which are alternately illuminated by neon tubes 4, 5, respectively. Tubes 4, 5 are connected in a multivibrator circuit comprising series resistors 8, 9 and capacitor 13. The output of A.C. amplifier 32 is fed to a D.C. amplifier over capacitor 101, the D.C. level being restored by means of a clamp circuit comprising photoresistor 103 which is illuminated from neon tube 5, in synchronism with photo-resistor 3. The D.C. amplifier comprises complementary common-emitter stages 104, 106 followed by an emitter-follower output stage 117, low-pass filter 112 serving to smooth the restored signal. In addition, the carrier frequency component is reduced by negative feedback from the collector of transistor 106, via high-pass filter 111 and emitter follower 115, to the emitter of transistor 104. The filters 112, 115 are preferably complementary.
Patent GB-1147481-A (GB)
Title: Improvements in method and apparatus for producing copper foil by electrodeposition
IPC: C25D1/04
Filed: 1967-03-31
Abstract: 1,147,481. Electrolytic production of copper foil. ANACONDA CO. March 31, 1967 [May 6, 1966], No.14762/67. Heading C7B. Copper foil is produced by electrolytically depositing copper on a moving cathodic surface formed by a titanium cylinder having a substantially non-porous and smooth outer surface, and the inner surface of which engages with a mating surface of an electrically conductive metallic structure e.g. of lead, having a greater coefficient of thermal expansion than said cylinder, which cylinder is rotated whilst partially immersed in a copper electrolyte of temperature sufficient to cause substantially complete engagement of the mating surface and the inner surface of the cylinder, and rendered cathodic with respect to counter-electrodes therein, copper deposited upon the surface of said cylinder being continuously stripped therefrom to form a copper foil. In the embodiment shown the cathodic cylinder 16 is positioned to rotate about axis 17 such that it is partially immersed in an electrolyte bath contained within tank 10, e.g. of concrete, having a lead lining 11 and containing counter-electrodes 23, 24 mounted upon vertical supports 27 and brick piers 28. The tank is provided with electrolyte inlet 13 and outlet 14 and a drain tap 15 and electrolyte is also supplied via supply pipe 42 and conduit 39 to distribution compartment 40 of the distribution manifold 36 from where it is delivered via discharge sub-compartments 41 to the inter-electrode spaces 25, 26. The copper foil 30 is stripped from the cylinder 16 and wound into a coil 32 about core 33. Rotation of the cathodic cylinder 16 and coil 32 is produced by sprocket chains 19 and 35 driven by drive shaft 22. The cathodic cylinder may comprise a lead cylinder containing three web spiders each having six spokes, the outer surface of the lead mating with the inner surface of the titanium cylinder Figs. and 3 (not shown).
Patent GB-537771-A (GB)
Title: Improvements in centrifugal separators for extracting solids from liquids
IPC: B04C3/00
Filed: 1940-10-04
Abstract: 537,771. Centrifugal separators. ALEXANDER, W. Oct. 4, 1940, No. 14869. [Class 23] A stationary centrifugal separator for extracting comparatively dense particles or grit from a liquid in free vortical motion has a cylindrical chamber 2 with a tangential entry 3, Fig. 1, at one end, while at the other end is arranged an outlet 4 for liquid, of less radius than that at which the inflow to the vortex occurs. The separated particles drop to the hopper 8 through the annular space 14 between the chamber wall 1 and the outlet 4. A flange 6 may be placed at the end of the outlet 4 to prevent any axial flow along the outside of the pipe. Instead of opening directly into the vortex chamber the tangential inlet may open into an admission chamber in communication by an annular passage with the vortex chamber. In a modification, the liquid enters axially 'by a varied annular passage. In the modification shown in Fig. 4 the liquid flows upwards from the varied annular passage 3 to the outlet 4 and the separated particles pass through slots 13 in the wall of the chamber to the channel 11 and the receptacle 8. In a further modification shown in Fig. 5, a core 5 is placed in the liquid outlet 4 to make it annular, and some separated particles pass through the slots 13 and channel 11 while others pass through the annular passage 14 to the receptacle 8. Specifications 300,841, [Class 23], 374,382, 376,555 are referred to.
Patent GB-953165-A (GB)
Title: Improvements in or relating to temperature sensitive devices
Inventor: ROGERS EDWARD ALBERT
IPC: G01K13/10
Filed: 1959-05-01
Abstract: 953,165. Semi-conductor devices. GRAVINER MANUFACTURING CO. Ltd., and WILKINSON SWORD Ltd. April 27, 1960 May 1, 1959], No. 14873/59. Drawings to Specification. Headings H1A and H1K. [Also in Division G4] A temperature detector comprises an elongated metal sheath of circular cross-section containing an inner coaxial conductor, the intervening space being filled with a mixture of glass and a chemical salt; a list of suitable salts is given in the Specification. At each end of the detector the coaxial inner and outer conductors are connected to coaxial plugs and hence to the indicating apparatus (see Division G4), the glass may be powdered and mixed with the salt in powdered form or glass beads may be coated with fused salt, the detector may be constructed according to any of the methods disclosed in Specifications 740,884, 740,960 and 800,550.
Patent GB-1184839-A (GB)
Title: Improvements in Developing Apparatus and method
IPC: G03G15/10
Filed: 1967-03-31
Abstract: 1,184,839. Developing electrostatic images. PITNEY-BOWES Inc. March 31, 1967 [April 4, 1966], No.14890/67. Heading G2H. A sheet 13 carrying a latent electrostatic image is immersed in developer formed of finely divided particles suspended in a dielectric carrier liquid. The particles may be carbon black, coloured resins or dye pigments while the carrier liquid may be cyclo hexane, kerosene or scylene. A lower sheet guide 2 is provided by ribs 3 while an upper rack 6 is provided by ribs 7 and an end plate 8. Rollers 14 squeeze liquid from the sheet. A zone F of liquid of substantially constant thickness is maintained between plate 8 and the sheet 13 partly by the liquid removed by rollers 14.
Patent GB-514919-A (GB)
Title: Improvements in or relating to accounting machines, cash registers and similar calculating machines
IPC: G06C7/06
Filed: 1938-05-19
Abstract: 514,919. Calculating-apparatus. NATIONAL CASH REGISTER CO. May 19, 1938, No. 14922. Convention date, May 20, 1937. [Glass 106 (i)] Keyboards.-A keyboard bankfor a cash register, accounting or similar calculating machine comprises lower and upper plates 31, 32. Figs. 1 and 2. having aligned slots 36 therein for guiding key stems' 34, other slots 47 in the lower plate intersecting the guide slots 36 and spaced to form webs 60, and spring means (e.g. the coil spring 38) supported on the webs and extending under the key stems so as to allow a portion 48 of the spring means to be carried below the plate under tension upon depression of a key. The coil spring is anchored at its ends to hooks 39 and is aligned by the bifurcated lower ends of the key stems. In a modification. Fig. 6, a short length of spring is provided for each key: Slots are formed in the key stems to accommodate a detent plate, or detent and locking plates, of usual construction. The bank is installed in the machine by hooking the upper end over a rod 45 and securing by a screw 43 at the lower end.
Patent GB-189476-A (GB)
Title: Improvements in gas controllers and the like
IPC: F23Q9/02
Filed: 1921-05-30
Abstract: 189,476. Horstmann Gear Co., Ltd., and Horstmann, A. May 30, 1921. Clockwork-actuated valves. - A clockworkactuated valve or electric switch has the clockwork and the valve or switch made as two separate and distinct units easily attachable to each other by self-contained counterpart fittings without the use of loose supplementary parts. The Figs. show the application to a gas-cock. In the form shown in Fig. 2, the actuating spindle extends from the back of the clock case and is provided with a disc J having an eccentric pin adapted to co-operate with pallets G on an arm F secured to the cock plug. The back of the clock has hooked plates c<1> adapted to engage pins L<1> projecting from the cock casing, and to be secured thereon by a latch D locked by a screwed member E actuated by the key used for winding the clock. The clock casing has a cleaning aperture N closed by a plug Q. In a modification applied to a controller in which the actuating member projects from the side of the clock case to engage an oscillating lever on the cock plug, a pair of hooked plates engage pins at the top of the casing while a single slotted plate is adapted to be engaged and secured by a locking screw mounted in the bottom of the casing. In a further modification applied to this type of controller, the clock case has a pocket to engage a tongue on the valve casing and has a slidable locking rod adapted to co-operate with a slotted member in the valve casing. The tappet arms comprise inner springy parts b having slightly domed forked ends a adapted to engage flat pins d on an outer part e so that the outer part can be readily turned to and retained in either the operative or inoperative positions. Specifications 27290/05, 23161/09 and 14825/11 are referred to.
Patent GB-901267-A (GB)
Title: Improvements in or relating to stocking shapes
IPC: D06C5/00
Filed: 1961-04-26
Abstract: 901,267. Finishing fabrics. BELLMANN, E., KRONSBEIN, R., and BELLMANN, F., [trading as BELLMANN ERBEN O.H.G. EUGEN]. April 26, 1961 [July 23, 1960], No. 15015/61. Class 42 (1). A stocking shape for use in dyeing stockings comprises a synthetic plastic cover 4 and a synthetic plastic strip 5 passing at least partly around the edges of the shape. The cover 4 is slipped over a metal shape 1 and the strip 5 is stretched over the cover 4 to lie in a groove 3 in the shape 1. The portion of the strip to receive the stocking seam is grooved as at 5a. The strip 5 may be secured to the shape by pins 6, 7 at the concave curve portions of the shape and the ends of the strip respectively. The cover 4 and the strip 5 are preferably made of polytetrafluoroethylene.
Patent GB-969455-A (GB)
Title: A silo having several separate storage compartments
IPC: E04H7/28
Filed: 1963-04-17
Abstract: 969,455. Concrete silos. BETONGBOLAGET VARBERGS BETONGVARUAKTIENBOLAG, and L. HERMANSON. April 17, 1963, No. 15041/63. Heading E1A. A silo for the storage of grain, cement &c., consists of concentric walls 1, 2 subdivided by radial partitions into several compartments, one of which may serve as a staircase. The walls are made of reinforced concrete slabs.
Patent GB-466446-A (GB)
Title: Improvements in or relating to optical sound-reproducing apparatus
IPC: G11B7/00
Filed: 1936-05-28
Abstract: 466,446. Feeding and winding sound - record films. PINTSCH AKT.-GES., J. May 28, 1936, No. 15109. Convention date, July 15, 1935. [Class 97 (i)] [Also in Group XXXVIII] An endless sound-record film carrving a number of record tracks is carried in a coil 46 on a spool 45 having flanges 9, 44, is drawn from the interior thereof by a glass drum 3, carried by a shaft 37 having a pulley 38 driven by a belt from a motor 12, and returns to the outside of the coil. The film may have a notch 8 permitting a lever 7, engaging the film edge, to rise and free a pendulum 13 secured to a pivot pin 28 carrying the anchor member 14 of an escapement mechanism. The movement of the member 14 results in alteration of the incidence of the light-beam on the sound tracks.
Patent GB-288054-A (GB)
Title: Improvements in or relating to wind motors
IPC: F03D7/02
Filed: 1927-06-07
Abstract: 288,054. Asseler, J. d'. June 7, 1927. No Patent granted (Sealing fee not paid). Screw motors; mounting.-A wind wheel 8 is kept up to the wind by a long rudder 9 supported near its plate 18 by rollers. 22 bearing on a fixed circular track 23. The wheel 8 is supported by a rotatable carriage 4 running on a circular track 2. The rudder 9 is secured to the carriage at two points 9<1>, 10, and is capable of being tiled about the point 9<1>.
Patent GB-1271486-A (GB)
Title: Process for making iron-chromium alloys
IPC: C21C5/00
Filed: 1970-03-31
Abstract: 1,271,486. Producing chromium-iron or steel alloys; refining pig iron. EISENWERK-GES MAXIMILIANSHUTTE m.b.H. March 31, 1970 [April 2, 1969], No. 15189/70. Heading C7D. A Cr alloy containing 10 to 30% Cr, remainder Fe and impurities, e.g. a ferritic Cr steel, is made by refining a pig iron melt containing Cr in a converter in which at least one O 2  jet is introduced into the melt through a nozzle under the melt surface e.g. compound nozzles installed in the converter bottom, the jet being surrounded by a sheath of a hydrocarbon jacket gas, e.g. propane from a pipe concentrically surrounding an O 2  pipe in each compound nozzle, to protect the nozzle and converter lining. Towards the end of refining the O 2  may be mixed with an inert gas e.g. A. To reduce the C content, e.g. to below 0À10% the pressure applied to the melt surface may be subatmospheric; the melt may also be subjected to a vacuum after refining. Preferably there is an initial refinement, then after drawing off slag, the necessary Cr is added as ferrochrome containing 6% C and at least 3% Si, then the melt refined again. Initially the pig iron may contain 3 to 4À2% C, up to 1% Si, 2 to 6% Mn, 0À08 to 0À12% P and up to 0À04% S. Lime may be blown as fine dust into the melt with the O 2 .
Patent GB-333606-A (GB)
Title: Apparatus for the removal of gases from underground conduit systems
IPC: H02G9/10
Filed: 1929-05-15
Abstract: 333,606. Siemens - Schuckertwerke Akt.-Ges., (Assignees of Gerlach, F.). Jan. 16, 1929, [Convention date]. Ventilating tunnels; forced ventilation.- Underground conduit systems to which access is obtained through manholes, e.g. those containing electric cables or heating pipes, are ventilated before opening by a portable suction pump connected by a flexible, pipe i to a hood g of impermeable material provided with a sealing ring h and adapted to be pressed over the usual ventilating grid d in the manhole, cover c. The Specification as open to inspection under Sect. 91 (3) (a) refers to Specification 333,604. This reference does not occur in the Specification as accepted.
Patent GB-769398-A (GB)
Title: Improvements in or relating to wind deflectors for vehicles with sliding roofs
IPC: B60J7/22
Filed: 1955-05-26
Abstract: 769,398. Wind deflectors for vehicles. BAIER, O., BAIER, S., BAIER, L., BAIER, W., BAIER, W., and SCHLUMPRECHR, E., [trading as BAIER KOMM-GES. WEBESTRO-WERK, W.]. May 26, 1955 [June 26, 1954], No.15208/55. Class 20(3) A wind deflector for a motor vehicle having a sliding roof comprises an L-section rail 8 extending across the width of the opening of the sliding roof and pivotally mounted at the forward edge of the opening, the arrangement being such that the deflector is raised or lowered respectively as the sliding roof is opened or closed. As shown in Fig. 2 the rail 8 is provided with rocker arms 7 pivoted on pins 6 and the raising of the deflector on opening the sliding roof is effected by a spring' 13 fixed at one end to a flange of the roof opening and beneath a rocker arm 7 at the other. The upper portion of the rail 8 may have rubber strips 9 and 10 secured thereto.
Patent GB-744325-A (GB)
Title: Improvements in jumbo machines having a pivotable tool-carrying jib, in particular for use in mines
IPC: E21C25/64
Filed: 1953-06-01
Abstract: 744,325. Hinges. SOC. TECHNIQUE POUR L'INDUSTRIE MINIERI, S.O.T.I.M. June 1, 1953 [June 3, 1952; April 15, 1953], No. 15269/53. Class 65 (2). [Also in Group XXIII] A jumbo machine comprises a fixed pivot and a base rotatable about the pivot, the cylindrical wall of the pivot having teeth which mesh with corresponding teeth in a locking member in the wall of the rotatable base, the locking member being urged for disengagement by resilient means and into engagement by wedging means slidable to wedge the locking member in position. As shown, a fixed pivot 9 has teeth 9a which engage teeth in a movable locking member 35 in the wall of a rotatable sleeve 8. A handle 23 operating a toggle gear forces a wedge 36 between the moving member 35 and a stationary member 37, the moving member being urged out of engagement by springs 38. In a modification, Fig. 7, two wedges 36 and 36 2  are forced between moving member 35 1  and 35 2  and fixed members 37 and 37 2 , the latter being pivoted at 118 in recesses in the wall of the sleeve. The two wedges may be moved by hydraulic means.
Patent GB-273273-A (GB)
IPC: H02K27/00
Filed: 1927-06-09
Abstract: 273,273. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Schmidt, H. F.). June 24, 1926, [Convention date]. Driving-arrangements. -An electric power generating plant comprises a number of opposed piston internalcombustion cylinders disposed transversely across the faces of a prismatic frame structure with the pistons connected to crank shafts 16 disposed along the corners of the structure, and a generator located within the structure with its shaft parallel with the crank shafts and connected thereto by gearing 17- 19. In the form shown, four cylinders are arranged in a square and six such. groups of cylinders are superimposed. The axis of the frame and the generator shaft are preferably vertical so that the operating characteristics of all the engine cylinders are modified alike by gravity. Cooling air is supplied to the generator from a fan 27 and flows through the air-gap and radial passages 28 in the field magnet core. From the space A between the field core and the engine frame 13 the air passes to the scavenging ports through hoods 29. Dampers 30 controlled by rack and pinion gear 30<a>, 30b and hand-wheel 32 may be provided whereby scavenging air may be admitted directly to the space A. In a modification, the radial ducts in the field core may. be replaced by longitudinal passages and air may be supplied directly to the space A by an independent blower. The invention is stated to be particularly adapted for locomotive propulsion. Specification 269,487, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], is referred to.
Patent GB-1030364-A (GB)
Title: Improvements relating to safety belts
Inventor: ESNER MARK
IPC: B60R22/18
Filed: 1964-04-14
Abstract: 1,030,364. Stud and socket fastenings. DYNASAFE EQUIPMENT Ltd. April 14, 1965 [April 14, 1964], No. 15500/64. Heading E2B. Attachment means for a safety belt comprises a bolt 1 having a non-circular head 5 and a threaded shank for screwing into a threaded bore in an anchorage point of a vehicle, locking means for locking the bolt in rotational and axial adjustment in the bore, a plate 6 adapted to be secured to a safety belt and having a non-circular aperture 7 for engagement over the head 5 of the bolt in one angular position of the plate relative to the bolt, the plate being rotatable upon the bolt between this position and another in which the head prevents removal of the plate, and means for opposing rotational movement of the plate about the bolt. The locking means may be a nut 4 or a clip, Fig. 3 (not shown) which is engageable with the plate and with a pair of holes on a face of the nut. The head of the bolt is substantially V-shaped in plan and as shown, a spring washer 3 resists relative rotation of the plate relative to the bolt.