baber/WOPTO huggingface dataset:
Patent GB-1503989-A (GB)
Title: Magnetic bubble detection device
IPC: G01R33/09
Filed: 1975-05-05
Abstract: 1503989 Magnetic bubble detectors HEWLETT-PACKARD CO 5 May 1975 [13 May 1974] 18765/75 Heading H3B A magnetic bubble is elongated in successive columns of elements 13A, and detected by two such adjacent columns 17A, 19A producing a doublet electrical pulse which is processed to determine when the voltage difference between two portions of the pulse exceeds a threshold V T . The output voltage is sampled 33A at optimum (noise-free) times and the data combined with that from a parallel channel B receiving alternate bubbles via switch 28. Reference is made to Specification 1,417,566.
Patent GB-251488-A (GB)
Title: Improvements in and relating to electric storage batteries or accumulators
IPC: H01M4/14
Filed: 1925-07-23
Abstract: 251,488. Judd, G. F., and Millington, W. A. July 23, 1925. Electrodes, made of a bricklike substance by the process described in Specification 251,487, are constructed in the form of hollow compartments by uniting their edges by surrounding strips of lead b. They may be reinforced by corrugated strips of zinc c.
Patent GB-1293096-A (GB)
Title: A method of, and apparatus for, winding flexible filamentary material onto a spindle
IPC: H02K7/16
Filed: 1971-06-03
Abstract: 1293096 Coils and driving arrangements for  dynamo-electric machines SIEMENS AG 3 June 1971 [3 June 1970] 18901/71 Heading H2A [Also in Division D1] In winding flexible, filamentary material,  e.g. yarn, onto a spindle, the spindle 1 is at-  tached to the rotor of an electric motor having a ring wound stator 5. The motor is preferably bipolar and may be of the asynchronous type,  Fig. 4 (not shown) or of the synchronous type Fig. 5 (not shown), having permanent magnet excitation on the rotor. In the latter case, Hall plates (13) may be mounted on the stator to detect rotor position, the output signals of the Hall plates being supplied to motor speeed control apparatus. The spindle  is intended to be used with apparatus ensuring helical winding of the yarn.
Patent GB-655898-A (GB)
Title: Improvements in or relating to sheet feeding apparatus
IPC: B65H3/24
Filed: 1948-07-14
Abstract: 655,898. Sheet feeding apparatus. HARRISON, G., and THRISSELL ENGINEERING CO., Ltd. July 14, 1948, No. 18905. [Class 117] Apparatus for feeding large sheets of carton board, corrugated cardboard or other board from a pile 3 comprises a horizontal feeding table 1, narrow supports or ramps 4, 5 located between the sides and middle of the pile at the ends, feed gates 6 above the ramps 5 at the front end and a spring feed pawl 7 between each ramp 4 at the rear end and the side of the pile. The ramps 5 together with the gates 6 may be adjustable laterally. Specification 2763/12, [Class 106(iii)], is referred to.
Patent GB-879683-A (GB)
Title: Improved angular velocity indicator
Inventor: SEIB MARTIN RAYMOND PERCIVAL
IPC: G01C19/42
Filed: 1959-06-03
Abstract: 879,683. Gyroscopic apparatus. DE HAVILLAND AIRCRAFT CO. Ltd. May 25, 1960 [June 3, 1959], No. 18917/59. Class 97(3) [Also in Group XXV] A rate of turn gyro has a rotor 14 rotatable about a spin axis in a cradle 13 which is supported on one side of the spin axis by at least six and, as shown, eight spring leaves 7 disposed radially about a gyro output axis with their lengths parallel to that axis so that the cradle 13 is angularly movable against the action of the spring leaves 7. The spring leaves 7 may be fixed between a ring 4, secured to a base plate 1, and a disc 9 carrying the cradle 13. The space between a cap 15 sealed to a plate 11 on disc 9, and a cover 16 sealed to base plate 1 is filled with silicone fluid, an expansible chamber 17 being provided above the top of cover 16. Pick-offs 3, 10 are provided.
Patent GB-1181308-A (GB)
Title: Improvements in or relating to Holders for Fire Extinguishers and the like
Inventor: BROWN ALBERT IVOR
IPC: A62C13/78
Filed: 1967-04-25
Abstract: 1,181,308. Brackets. STEEL CO. OF WALES Ltd. 23 April, 1968 [25 April, 1967], No. 18952/67. Heading A4B. A holder for a fire extinguisher comprises a wall mounted bracket 1 carrying a catch 5 with a projection for engaging a lug (13) on the upper end of the extinguisher, the catch 5 being carried by a shaft 7 which is rotatable about its axis 8 between an operative position in which the latch 5 extends outwardly of the front face 3 of the bracket 1 and an inoperative position in which the latch 5 is disposed behind the front face 3, and includes a spring 9 which biasses the shaft 7 to the inoperative position of the latch 5. The latch 5 may be moved to its operative position by rotation of the shaft 7 with a key (14) engaging an end 15 of the shaft 7. A lug 2 fixed to the bracket 1 engages a bottom flange (12) on the extinguisher.
Patent GB-1497219-A (GB)
Title: Magnetic bearings
IPC: F16C39/06
Filed: 1975-05-06
Abstract: 1497219 Magnetic bearings SOC EUROPEENNE DE PROPULSION 6 May 1975 [9 May 1974] 19031/75 Heading F2A An active, i.e. retroactively controlled, magnetic bearing comprises a stator including at least one electromagnet 1 of U-shaped cross-section with the arms of the U, e.g. 1a 1b, forming north and south poles respectively, the arrangement being such that the plane of symmetry 1c which separates the two poles lies perpendicular to the axis of rotation 2c of the rotor associated with the bearing; the rotor is in the form of an annulus whose cross-section is in the shape of a U having arms 2a, 2b radially aligned, as shown, with the arms la, 16 of the stator, and may be formed of laminated plates or of plates having an orientated granular structure to reduce hysteresis losses.
Patent GB-1110403-A (GB)
Title: Improvements in or relating to electric discharge tubes
Inventor: STARR ARTHUR TISSO
IPC: G09G1/20
Filed: 1964-05-07
Abstract: 1,110,403. Electric selective signalling. RANK ORGANISATION Ltd. 16 July, 1964 [7 May, 1964], No. 19111/64. Heading G4H. [Also in Division H1] The outputs 20 (Fig. 4), (120, Fig. 5, not shown) from a character generator set up the pattern held by the resistances on grids g 1  to g 14  of an electric discharge tube, the pattern on the screen being formed by a plurality of electron beams arranged in a column (Fig. 2a, not shown) or two columns (Fig. 2b). The character generator comprises matrices 12, each character being formed by appropriate positioning of resistances (Fig. 4) or by diode gating and resistances (Fig. 5, not shown). The input leads 14 to the matrices are pulsed sequentially, there being ten input leads with the single column arrangement of beams and twelve leads with the double column arrangement. The horizontal position of the character on the screen is controlled by a register comprising bi-stable stages (400, Fig. 9, not shown), the end of the sequential pulse generator signal scanning each of the vertical conductors of the matrics 12 counting the register on one stage, so that the appropriate deflection voltage is applied to the X plates of the tube.
Patent GB-384231-A (GB)
Title: Improvements in methods of and devices for testing the positions of the driving shaft
Filed: 1931-07-07
Abstract: 384,231. Optical testing-apparatus. ZEISS, C. [Firm of], Carl-Zeiss-Strasse, Jena, Germany. July 7, 1932, No. 19185. Convention date, July 13, 1931. Addition to 262,412, [Class 97 (i), Optical systems &c.]. [Class 97 (i).] The parent Specification describes an optical device for testing the positions of the driving shafts of a machine, e.g. a locomotive, by determining the position of each shaft in relation to the cylinder axis. According to the present invention the position of only one shaft is determined optically and the other shafts are located by mechanical testing devices by which they are set parallel to the first-mentioned shaft. The optical test for the one shaft consists in setting a line in the required position relatively to the axis of a pair of driving-shaft bearings in the locomotive frame and thence determining points on the side plates of the frame, these points indicating the requisite position of the driving-shaft. The Figures show the arrangement for a locomotive having parallel frame members 1, 2, cylinders 3, 4, and a number of apertures in the frame members having shoulders 16 for holding the driving-shaft bearings. A telescope 5 provided with cross-wires 8, is mounted within a tube 9 by a ball-shaped collar 10 and set-screws 11 with counter-springs 12 and the tube is mounted within the cylinder 3 by rods 15 extending from sleeves 14 on the accurately-ground exterior of the tube, there being three rods to each sleeve. The members 1, 2 are provided adjacent the apertures farthest from the cylinders with stays 17 carrying guide rails 18 on which is mounted a plate 19. Rotatably mounted on this plate is a disc 20 carrying a vertically-adjustable slide guide 23 supporting a mark carrier 26 to which is attached a collimator 30 comprising a source of light 31, a lens 32, and a frosted glass plate 33 marked with scales 34, Fig. 4, at the focus of the lens. The carrier 26 has recesses 27, 28 defining its axis and carries measuring-gauges 35 co-operating with adjustable stops 37 on the frame. In making a test the telescope 5 is adjusted so that its axis is parallel to the ground surface of the tube 9, the collimator 30 is adjusted horizontally and the carrier 26 is adjusted until the vertical line of the scale 34 coincides with the vertical cross-wire of the telescope. The carrier is now adjusted laterally with the aid of a gauge 39 extending between the cylinder 3 and the recess 27 until it occupies the position determined for the driving-shaft axis within the apertures 16, and the stops 37 are adjusted until determined readings of the gauges 35 are obtained. These stops then determine the position of the one driving-shaft axis. The positions of the other driving-shafts are set by removing the carrier 26 &c. and applying a gauge 40 between the stops 37 already adjusted and the corresponding stops pertaining to the other apertures 16.
Patent GB-819077-A (GB)
Title: Method and means for the indirect preliminary heating of parts to be welded through aluminothermic casting
IPC: B23K23/00
Filed: 1956-06-21
Abstract: 819,077. Casting composite articles; thermoaluminic reaction processes. ACIERIES DE GENNEVILLIERS S.A. June 21, 1956 [July 5, 1955], No. 19283/56. Classes 83 (1) and 83 (4). In the welding together of the ends of bars, angles, rails, &c., in moulds by pouring in the molten metal product of an alumino-thermic reaction, the ends are preheated by supplying an alumino-thermic reaction product to at least one auxiliary mould attached to each end, said auxiliary mould not being in communication with the inside of the main mould, the heat of said last reaction being conducted to the ends which are to be welded together. The auxiliary moulds 7 and the main mould 3, with gates and runners 4, 8, 9, and vents 11 formed of sheet metal, Fig. 1, are packed around with moulding sand 12, Figs. 2 and 4. The auxiliary moulds may be filled with the product of an aluminothermic reaction such as metal and are of a size to prevent adhesion of the aluminothermic product therein to the parts to be joined, or said parts may be coated with a refractory. Alternatively, the auxiliary moulds may be filled with a substance which burns at a high temperature, such as slow-burning cellulosic gumpowders.
Patent GB-193046-A (GB)
Abstract: 193,046. M³ller, J. C. [Firm of], (Assignees of Gottschalk, K. P.). Feb. 9, 1922, [Convention date]. Matches.-Means for impregnating wood, paper, &c. matches in strip or band form with paraffin comprises two vertical adjustably arranged discs b, covered on their inner surfaces with felt or other absorbent material c, rotating in a receptacle a containing warmed paraffin which is introduced from a container d arranged adjacent to the receptacle. Heating boxes i<1>, i<2>, and guide plates m<1>, m<2>, may be provided to warm the band before it passes between the discs.
Patent GB-921537-A (GB)
Title: Process for extracting fatty substances from animal material
IPC: C11B1/00
Filed: 1959-06-05
Abstract: <PICT:0921537/III/1> Fats are extracted from such animal material as bones, flesh, hides and skins into such extraction media as perchloroethylene, carbon tetrachloride, trichloroethylene or solvent benzine preferably at temperatures of 25 DEG -40 DEG C. by passing the material and the medium through an extraction zone excited ultrasonically by transducers so arranged as to converge the ultrasonic energy into the extraction zone and produce cavitation in the medium, the energy passing through an intermediate zone in which the medium is free from cavitation.  As shown, a suitable embodiment comprises a hopper 1 from which animal material to be extracted is passed by screws 21 and 211 to the base 31 of column 3; the material then passes upwardly through column 3 and the residue is removed from head 311 by screw 5.  Solvent is passed tangentially downward through column 3 and upward through cooler p  7, fat-laden solvent passing out through valve A and fresh solvent entering through valve B.  The internal surface of column 3 carries a cylindrical array 4 of magnetostrictive or electrostrictive transducers, ceramic barium titanate transducers of the latter type being preferred.  The ultrasonic energy is applied at frequencies of 40-60 kc/s. and it is preferred to operate at or only slightly above the threshold of cavitation, so that cavitation occurs only within a coaxial portion of the medium and does not occur in the region of the medium adjacent to the walls of column 3.
Patent GB-1429992-A (GB)
Title: Optical projecting apparatus
IPC: G03B21/14
Filed: 1973-04-24
Abstract: 1429992 Optical projection apparatus LINDACO Ltd 24 April 1973 [26 April 1972] 19371/73 Heading G2J Optical projection apparatus includes a diascopic projector and an episcopic projector, wherein a light source, which is mounted on an axially and rotatably movable shaft, is able to be positioned for supplying light to either projector. As shown there are two diascopic projectors, viz cine projector 1 and slide projector 2, each having funnels 12 and condensing lenses 11. The episcopic projector 3 has a vertically movable, glass table 4, lens 3a and mirror 16. The movable light source 9 is mounted on shaft 10 which is axially movable to align the source 9 with one of pro-  jectors 1, 2 and rotatable to be directed on to table 4. An auxiliary light source 15 switched on/off by rotation of shaft 10 is provided.
Patent GB-147478-A (GB)
Title: An improved adjustable easy chair
IPC: A47C1/032
Filed: 1920-07-08
Abstract: 147,478. Hager, A. May 10, 1919, [Convention date]. Sliding seats; seat adjustments. - In an easy chair of the kind provided with a back which can be adjusted angularly by moving the seat member, pins g on the back c engage toothed racks h, while the seat member a is hinged at b to the back, and slides in lateral guides e. The back may be adjusted by the occupant of the seat without rising therefrom.
Patent GB-634235-A (GB)
Title: Improvements in polyamides
IPC: C08K5/42
Filed: 1947-07-21
Abstract: Polyamide compositions of improved transparency are obtained by blending a molten synthetic linear polyamide with from 0.5 to 10 per cent of its weight of a sulphonated compound of the formula R.CO.XR1SO3M, where R is a saturated or unsaturated open chain monovalent hydrocarbon radical having 11 to 19 carbon atoms, R1 is a divalent hydrocarbon radical having 1 to 6 carbon atoms, M is a sodium or potassium atom, and X is an oxygen atom or a tertiary nitrogen atom to which is attached an alkyl radical.  Such compounds mentioned are sodium 2-oleatothane-sulphonate, potassium stearatomethane methane sulphonate, sodium 6 - laurato - hexamethylene sulphonate, sodium 2-palmitatoethane sulphonate, sodium 6-oleato hexamethylene sulphonate, sodium 2 - (N - methyl - oleamido) - ethane sulphonate, potassium-4-(N-ethyllauramido)-tetramethylene sulphonate, and potassium 6 - oleato hexamethylene sulphonate.  In examples, molten polyhexamethylene adipamide is stirred at 270-280 DEG  C. with (1) 5 per cent, and (2) 1 per cent of sodium 2-oleato ethane sulphonate, and (3) sodium 2-(N-methyl-oleamido)-ethane sulphonate.  A nitrogen atmosphere and vacuum to remove bubbles are applied alternately.  The melt is poured into moulds and cooled in ice water.  Suitable polyamides are polytetramethylene sebacamide, polypentamethylene adipamide, polypentamethylene sebacamide, polyhexamethylene suberamide, polyoctamethylene adipamide, polydecamethylene carbamide, polyhexamethylene sebacamide, polymerized 6- or 9-amino caproic acid, polymerized 11-amino-undecanonoic acid, interpolyamides from amino acids, dibasic acids and diamines.  Specification 461,236 is referred to.  The Specification as open to inspection under Sect. 91 comprises p  also polyamides from the reaction of a mono-amino monohydric alcohol with a dibasic acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-819563-A (GB)
Title: Improvements in or relating to clutch devices for motor vehicles
IPC: F16D48/02
Filed: 1957-06-20
Abstract: 819,563. Operating clutches. EDELBLUT, J. June 20, 1957 [June 26, 1956; June 1, 1957], No. 19508/57. Class 80 (2). [Also in Group XXXVII] A vehicle clutch adapted to be operated automatically on gear-changing is engaged by engine suction and disengaged by engine suction together with the assistance of a pre-loaded mechanical force member such as a spring or weight. A piston 2 coupled by rods 3, 5 to the clutch pedal 6 is acted up on either side by suction from the engine induction pipe 9 under control of a valve 15 adapted to be actuated by a magnet coil 17 in a circuit including a switch 38 on the gear selector lever. For clutch engagement the suction is applied to the left-hand side of piston 2 through pipes 23 or 24 which also loads a spring 7 on the left-hand side of the piston, the valve 15 being in the position shown with the coil 17 not energized. For clutch disengagement on closing the switch 38 on the gear lever the coil 17 is energized to move valve 15 to the right to direct the suction to the righthand side of piston 2 which action is assisted by the loaded spring 7. On release of the gear lever and switch 38 the clutch is re-engaged. The engagement of the clutch when the vehicle is travelling slowly is effected more slowly by means of a vehicle speed switch 51 in series with a piston operated switch 48. When both these switches are closed a valve 25 is moved to the right by a coil 28 to close the pipe 24 and allow a reduced suction from a regulating valve 30 controlled by the engine throttle valve to act through pipe 23 on the piston 2 for the latter part of its travel. This reducing valve 30 may be replaced by a hand-operated regulating valve or a reduced opening for the suction may be incorporated in the valve 25 or the piston 2 may directly control suction openings. The clutch is adapted to be automatically disengaged on stopping or when the engine is running slowly by means of a switch 40 controlling the coil 17 of valve 15 which is normally held open by an electromagnet 42 energized by the vehicle dynamo 44. On the engine speed falling below a predetermined value the switch 40 closes to move valve 15 to the right for clutch disengagement. In a modified arrangement the connection from the piston 2 to the clutch is effected through an hydraulic line which is put under pressure to disengage the clutch and under suction to engage the clutch.
Patent GB-232479-A (GB)
Title: Improvements in sewing machines
IPC: D05B73/00
Filed: 1924-08-18
Abstract: 232,479. Greenwood, C. H. Aug. 18, 1924. Sewing-machines; frames; illuminating-apparatus. - The sewing-head is formed so that the thread-tension, thread-guide and take-up are entirely enclosed therein. The end-face of the head 1 is open and is covered by a cover-plate 49 hinged at 55. This cover-plate is divided by a slot 50, the two parts being connected by a plate comprising lateral parts 51, 54 and a central U-shaped part 52 in which is a thread-guide 53. A thread is passed through a slot 46 in the upper part of the head and through the slot 50 and guide 53 to the needle engaging intermediately the tension discs 34, 35 and take-up lever 31. Partition walls are provided to prevent splashing of oil on the thread. A lamp 59 is arranged in the lower part of the head. Presser-bars.-The presser-bar 12 is stressed by a spring 18 the pressure of which may be adjusted by the turning of a threaded bushing 15 in a bracket 16. Thread-tensioning devices; threads, controlling otherwise than in stitch-forming. - The tension discs 34, 35 are mounted on a rod 36 rotatable in the wall of the head by means of a key applied at the end 41 so as to traverse a nut 38 held by a rod 29 against' rotation, and thereby vary the tension of the spring 37. A lever 42 is moved by the lifting of the presser-bar to engage and separate the discs 34, 35. Governing needle-thread.-The take-up comprises a lever 24, 28 actuated by a cam-slot 30 in the, discs 11 to which the needle-driving link 9 is pivoted. The thread is engaged by a slot 33, a finger 32 extending at one side of the slot cooperating with a curved edge of the plate 54 to retain the thread in the slot. The cam 30 is so shaped that the take-up does not start to pull up the thread till the needle-eye is above the level of the cloth, but is at its highest point at the top of the needle-stroke.
Patent GB-638492-A (GB)
Title: Improvements in and relating to the revivification of bone char
Inventor: ARNOLD MICHAEL HENRY MILLER
IPC: C01B31/08
Filed: 1946-07-01
Abstract: <PICT:0638492/III/1> A batch or continuous process for the revivification of particulate bone char comprises heating it, preferably at 450-550 DEG  C., while maintained in a fluidized state, but not as an p  "entrained stream," by a counter or cocurrent stream of an inert gas, e.g. nitrogen, superheated steam, or a mixture thereof, or the gaseous products of combustion of solid, liquid, or gaseous fuels.  The bone char may be heated either directly or indirectly, or both.  A sufficient amount, say 2 per cent by volume of free oxygen may be present to remove some of the carbonaceous material in the char.  The char may be predried to 8-10 per cent by weight moisture.  Wet spent bone char to be revivified passes from hopper 14 to drier 15, having conical bottom 19, where it contacts warm gases from pipe 16, and passes thence to annular space 21, having inner shell 24 with louvres 25, lagged outer shell 23, and central combustion chamber 26, where drying is completed.  The char then flows to larger annular space 34, wherein it is maintained in the fluid state by hot gases escaping through channels 30 from refractory lined combustion chamber 26, which is supplied with combustible gas and air at 32 and may have refractory thermal accumulator 29 and external fins to assist heat distribution.  The hot char passes down ducts 35, cooled by air drawn through sleeves 36, to hopper 39.  The air from sleeves 36 is admixed with hot gases withdrawn through louvres 25 and from the top of space 34 and fed through pipe 16 as drying gas.  The apparatus may have more than one combustion chamber, or there may be a single annular space of uniform cross-section surrounding the combustion chamber.  A simpler apparatus is also described in the Provisional Specification. Specification 569,691 is referred to.