baber/WOPTO huggingface dataset:
Patent GB-142341-A (GB)
Title: Improvements relating to induction coils
IPC: H02M7/62
Filed: 1919-06-14
Abstract: 142,341. Weatherill, F. June 14, 1919. Transformers. - The circuit of the primary winding of an induction coil is controlled by a pivoted armature which is moved in one direction by the magnetized core 39 of the induction coil and in the opposite direction by the core 36 of an auxiliary electro-magnet, the circuit of which is established when the armature is attracted by the core of the induction coil. The armature is made in two parts 1, 2, which are mechanically connected by means of iron plates 3, 4, but are electrically insulated from each other. The parts 1, 2 are made of strips of brass, the free ends 7 - - 10 of which are bent as shown, and adapted to engage stationary contact plates 11 - - 14. The armature carries an insulated stirrup-piece 30 with an adjustable contact pin 31, which, in the position shown, engages a fixed contact member 32 and completes the circuit of the electro-magnet. The armature is then attracted by the core 36 and breaks the circuit of the electro-magnet at 31, 32; at the same time, the circuit of the primary winding is completed between a movable contact member 28 carried by the armature, and an adjustable contact 25. The primary winding is connected across terminals A, D, and the secondary winding across terminals E, F. which are connected to extensions 40, 41 carried by the parts 1, 2 of the armature. The contacts 11, 13 and 12, 14 are connected together as shown, and the external circuit supplied from the secondary winding is connected across terminals A, G. The currents induced in the secondary winding on making or breaking the circuit of the primary winding traverse the battery B, energizing the primary winding. The current induced on making the primary circuit charges up the battery, while that induced on breaking the circuit opposes the current flowing from the battery and prevents sparking. According to the Provisional Specification, the primary winding consists of two sections wound in opposite directions on the core, the current entering at the centre of the length of the core and traversing the sections in parallel. The secondary winding consists of two oppositelywound sections in series.
Patent GB-544058-A (GB)
Title: An improved air-raid shelter or building
IPC: E04H9/12
Filed: 1940-10-09
Abstract: 544,058. Air-raid shelters. CHROBOK, P. Oct. 9, 1940, No. 15085. [Class 20 (i)] An air-raid shelter is provided with an outer concrete roof mounted on springs and adapted for movement between concrete or like wall extensions above a sub-roof ; the springs may be metal volute or laminated plate springs, or hydraulic or pneumatic or other non-metallic spring devices. In one form, as shown in Fig. 1, the shelter 7 is provided with an inner roof 6, between upwardly extending portions 10 of which is positioned an outer gable-shaped roof 4 of lattice construction, mounted on volute springs 5 placed between the inner and outer roofs, the outer roof being guided after impact by the wall extensions. The outer roof is cased with metal plates which act to deflect a bomb or shrapnel, and the space between the roofs may be filled with packing material. In another form as shown in Fig. 3, the inner and outer roofs 21 and 11 respectively are mounted on carriage springs 22 and 14 respectively positioned on the upper ends of the walls 17 of the chamber 18, while extensions 19 of the walls act as guides to the outer roof portion after impact. The upper edges of the wall extensions are capped at 20 to act as stops for the outer roof and to aid in deflecting bombs. The shelter may be wholly or partially sunk into the ground.
Patent GB-1040592-A (GB)
Title: Adherent conductor
IPC: F16B11/00
Filed: 1963-04-17
Abstract: 1,040,592. Adherent cables. MINNESOTA MINING & MANUFACTURING CO. April 17, 1963 [April 18, 1962], No. 15088/63. Heading H1A. [Also in Division H2] An adherent tape cable comprises a plastics film 11 and a compressible sponge layer 13 bonded together with one or more electrical conductors 12 sandwiched between them and in which the outer surface of the sponge layer has a coating of normally tacky, pressure-sensitive adhesive 15 such that it can be attached to structural surfaces. As shown, the adherent cable may also have an adhesive primer coating 14. In a further embodiment, Fig. 4, not shown, a coating 46 of adhesive is applied between the plastic film, conductor and foam layer to increase the bonding, and the pressure sensitive adhesive is protected by a removable temporary liner 47 e.g. silicon resin treated paper. In a further embodiment, Fig. 5, not shown, the plastic film comprises a tough abrasion-resistant outer layer 51 and an inner bonding layer 58. Fig. 8 diagrammatically illustrates a process and apparatus employed to make this adherent cable, in which a thin plastic film 11 from supply roll 81 passes around a driven rigid metallic squeeze roll 87 having a series of shallow peripheral wire-guiding grooves; wires 12 from a plurality of supply reels 82 press the film into the grooves and adhesive coated temporary liner 85 is drawn around the opposing elastically compressible hard rubber squeeze roll 88. The sponge or foam layer is formed by simultaneous extrusion and expansion from extruder 84 and by contacting the freshly formed hot foam with the plastic film 11 under pressure and at high temperatures it is bonded to the contacting surfaces. The product is withdrawn from the pressure area by pull drum 91, cooled, slit into desired widths at cutter 89, and wound into stock rolls 90. The thickness of the sponge layer is at least three-fourths of the wire diameter and is from 8 to 50 mils. and the thickness of the plastics film is from 3 to 8 mils. The materials which may be used during preparation of the plastics film, the adhesive composition, the primer composition and the foam or sponge composition are given in the Specification, e.g. vinyl resins, polyethylenes, polyesters, polyalkylenes, together with relative thicknesses of each layer and tensile properties of the plastics film, sponge and bonded two-layer composite. A connection block, Figs. 6 and 7, not shown, for use with this cable is also described (see Division H2).
Patent GB-475896-A (GB)
Title: Improvements in alloy steels used for welding and welded joints
IPC: B23K35/30
Filed: 1936-05-29
Abstract: Welding-rods are composed of an alloy steel comprising 2-30 per cent of chromium, up to 0,5 of carbon, 0,5-2,5 of tungsten or molybdenum or both and niobium in an amount at least 8 times and not over 1,5 per cent plus ten times the carbon content of the steel.  The rod may be used for welding together the adjacent edges of a chromium steel containing 2-30 per cent of chromium and up to 0,5 per cent of carbon.
Patent GB-1412913-A (GB)
Title: Television picture signal xource synchronizing arrangement
IPC: H04N5/073
Filed: 1974-04-05
Abstract: 1412913 APC systems GRUNDIG EMV ELEKTRO - MECHANISCHE VERSUCHSANSTALT MAX GRUNDIG 5 April 1974 [5 April 1973] 15173/74 Heading H3A A television signal synchronizing arrangement suitable for synchronizing a plurality of TV picture signal sources to a master source comprises a variable frequency oscillator 7, a frequency divider 10 arranged to develop from the oscillator output local horizontal and vertical synchronizing pulses, a phase comparator 6 fed with local and external horizontal synchronizing pulses to derive a control signal for the oscillator, a stage 3 fed with local and external vertical synchronizing pulses and producing an output when the two set of pulses do not coincide which is applied to a gated mixer 5 along with the oscillator output to vary the effective repetition rate of the latter. Sync. signals at 1 from a master camera or from a source generator control at 6, 3 the phases of the horizontal, vertical sync. pulses to be applied to a local TV camera connected at 14 in each station. In the event of failure of signals at 1, a crystal oscillator 8 is switched in by 12 and serves as a master source for the following stages. Fig. 2 (not shown) relates to detailed circuitry of some of the stages.
Patent GB-181012-A (GB)
Title: Improvements in high frequency telegraph and telephone systems
IPC: H04B3/56
Filed: 1922-05-30
Abstract: 181,012. Ges. f³r Drahtlose Telegraphie. June 1, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Transformers; condensers.-In signalling over high-potential lines by means of high-frequency oscillations, the operators and the receiving and transmitting apparatus are protected by the interposition of an insulating shield. This may be placed between the coils of a transformer, or may constitute the dielectric of a condenser. It may be used as a switchboard or carrier for the parts of the apparatus.
Patent GB-181950-A (GB)
Title: Trouser press
IPC: A47G25/72
Filed: 1921-06-02
Abstract: 181,950. Gaskell, E. M. June 2, 1921. Trouser presses.-A trouser press comprising upper and lower boards a, d, pressure bolts g and wing nuts n has runners f supported at each side of the lower board on straps e attached thereto. The upper edges of the runners, which are higher than the upper board, are cut away adjacent the bolts g, which pass through the straps e and runners f and are engaged by slotted metal fittings c on battens b on the upper board.
Patent GB-1214242-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02M61/18
Filed: 1969-03-24
Abstract: 1,214,242. Fuel injectors. SULZER BROS. Ltd. March 24, 1969 [April 11, 1968], No.15320/69. Heading F1B. In an I. C. engine fuel injection valve nozzle having a valve seat and two circumferential rows of injection ports, the ports in one row are circumferentially offset from the ports in the other row and the axes of the ports in the row further from the valve seat are at a larger angle with the longitudinal axis of the nozzle than the axes of the ports in the other row, the angles being measured from the projection of the longitudinal axis extending beyond the nozzle tip.
Patent GB-802671-A (GB)
Title: Improvements in or relating to demountable pressurised high-voltage connections
Inventor: CHAPTER COLIN FALCONER
IPC: H01J29/92
Filed: 1955-05-27
Abstract: 802,671. Caps and holders for thermionic valves. RANK CINTEL, Ltd., [formerly CINEMA-TELEVISION, Ltd.]. May 25, 1956 [May 27, 1955], No. 15358/55. Class 38 (1). A detachable high-voltage connection between an electron discharge device and a conductor 1 is made by a stud 2 on the device and a spring-pressed contact 4 connected to the conductor, the latter passing through an insulating body 7 pressed into contact with a part 8 on the device by a metal member 10 having a segmented rim 11 which engages lip 9 on part 8 and is constricted by a wire loop 12. The ends of the loop are tightened by a handle 14 or an endless loop is used and the wire twisted to tighten it (Fig. 2, not shown). Alternatively, the body 7 may be formed with a segmental extension which is clamped round part 8 by an insulating member such as a worm-drive clip. Specification 802,670 is referred to.
Patent GB-1086629-A (GB)
Title: Improvements in or relating to a cartridge fuse holder
IPC: H01H85/32
Filed: 1965-04-12
Abstract: 1,086,629. Holders for cartridge fuzes. V. RUSSENBERGER. April 12, 1965 [April 17, 1964; March 3, 1965], No. 15407/65. Heading H2G. One end of a cartridge fuze 28 is held in the resilient socket end of a translucent removable member 22 and when the member is inserted in a tubular holder 2, 6, the other end of the fuze engages a sliding plunger contact 11 which may be connected to a lead 10. A conducting plate 29 is retained in the member 22 so as to be engaged by the end of the fuze and has opposed projections which engage in bayonet slots in curved blades 13, 14 held in the holder 2, 6. The blades are staggered so that only the blade 13 is actually contacted to complete the circuit through the fuze to a lead 18. When the fuze blows, an indicating circuit, through a resistor 19, the blade 14, a coil spring 35 on the member 22 and a lamp 37 within that member, becomes effective. The member 22 is held in the holder 2, 6, which has a mounting flange 3, by a resilient ring 25. In a modification, Figs. 6 and 7 (not shown), the blade 14 is shaped so that the member 22 can be retained within the holder in two positions, in one of which the blade 13 is not contacted so that the circuit through the fuze is broken.
Patent GB-310683-A (GB)
Title: An improved method for the removal of grease and oil from metal articles
IPC: C23G5/04
Filed: 1928-05-25
Abstract: 310,683. Marks, E. C. R., (Harbeck, E.). May 25, 1928. Fats and fatty oils, extracting by solvents.-In an apparatus for cleansing metal articles by means of vapour of a cleansing agent such as trichlorethylene, a vessel 1, containing the cleansing liquid 15, is open at the top and is divided into a. heating compartment 1<a> and a cooling compartment 1<b>. The compartment 1<a> is provided with double walls containing heat insulation 200 and the compartment 1<b> with a cooling jacket 3 through which a cooling agent circulates. The articles are contained in a basket 13 which is suspended by a rope 20 running over pulleys 16 on a davit 12 secured to the vessel 1 and wound on a drum 23 provided with a crank 24. The liquid 15 is vaporized by a steam coil 9 or other heating means and the basket 13 is lowered into the compartment 1<a>. Vapours ascending into the compartment 1<b> are condensed and fall either into the channel 6 or into the compartment 1<a>.
Patent GB-117006-A (GB)
Title: Improvements in the Fallers and Tappets of Beetling Frames.
Inventor: RHODES THOMAS
IPC: D06C15/14
Filed: 1917-10-25
Abstract: 117,006. Rhodes, T. Oct. 25, 1917. Beetling. - The fallers of beetling-frames are made reversible so that they may be used with either end uppermost. In the form shown, the faller is provided with a tappet mortise having bevelled sides and with openings a<1> for the wedge c, which is placed above the tappet b whichever end of the faller is uppermost. The tappet is formed with a single dovetailed tusk tenon having a shoulder a<3> locking in the bottom of the mortise and with an enlarged head fitting the bevelled sides of the mortise. The middle prong of a three-pronged cotter d engages slots in the wedge and tappet. To reverse the faller, it is turned bottom uppermost and given half a turn about its axis, the tappet, wedge, and cotter being replaced in the manner shown with the tappeb given half a turn to expose the opposite face to the lifting-cam. In a modification, the wedge is dispensed with and the faller is formed with a simple tapered mortise or one tapering from both ends. The mortise may be lined with metal, and the working faces of the tappet and the ends of the faller may be provided with wearing-surfaces of vulcanite. buffalo hide, fibre, etc.; or oak pins may be inserted in the faller and tappet.
Patent GB-331993-A (GB)
Title: Improvements in electric stop motions for drawing boxes for wool, worsted and like fibres
IPC: D01H13/16
Filed: 1929-05-21
Abstract: 331,993. Scott, W. J. May 21, 1929. Stop-motions.-When a sliver breaks between' the supply package and the rollers of a drawing- box for wool, worsted, and like fibres, it falls upon an insulated flexible feeler 28, Fig. 3, and causes it to interrupt or to complete the circuit of an electromagnet, whereby a clutch connected with a spring controlled lever is tripped and the machine stopped. The circuit closer is made as a separate unit and comprises a plate 24, offset at one end to carry the spring feeler 28, and provided at the other end with a contact button 32. The plate is provided with a slot 25 so that it can be attached to the machine adjacent to the inclined sliver guide-frame 13, Fig. 1. The contact 32 is preferably carbon set in a lead collar.
Patent GB-355682-A (GB)
Title: Improvements in frames for motor cycles and like vehicles
IPC: B62K25/08
Filed: 1930-05-21
Abstract: 355,682. Cycle spring frames &c. LAGUESSE, F., 510, Rue Hayeneux, Herstal, near Liege, Belgium. May 21, 1930, No. 15707. Convention date, May 21, 1929. [Classes 136 (ii) and 136 (iii).] A resilient front fork for motor cycles &c. comprises on each side two tubes 32, 32a connected at the bottom by a member 33, the two front tubes 32a having slidably mounted thereon outer tubes 35, which carry the wheel axle at 36a and are acted upon by conical coil springs 37, the sliding movement being damped by interposed friction linings. The tubes 35 may be connected by a cross stay 35a. The upper ends of the tubes 32, 32a are secured to an annular member 29 turning on ball bearings 28 in upper and lower steering-head members 27, 27a rigid with the cycle frame, the member 29 carrying clamps 31 for securing the handle-bar. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subjectmatter. The front part of the frame comprises two quadrilaterals 5 .. 8, Fig. 1 (Cancelled), arranged side by side, and is pivoted at 14 in hollow lugs 13 on the rear part, which is in the form of a quadrangular pyramid 3, 3a, 2, 2a, 4, 4a having at its apex a member 10, between which and a cross stay 12 on the front part is interposed a conical coil spring. The spring movement is frictionally damped by a steel strip pivoted to the stay 12 and rubbing between two steel plates which are lined with friction material and are adjustably pressed together by means of a spring and regulating screws &c. The front part of the frame is provided with stays 9. The saddle is supported resiliently both from the cross-bar 12 of the front frame part and from the tubes 2, 2a of the back part. The engine, foot-rests, &c., are supported on the front part. In order to facilitate detachment of the rear wheel, the casing for the bevel pinions by which the wheel is driven is formed with ribs to engage similar ribs on the fork lugs, and the axle is made hollow to receive a withdrawable through spindle adapted to be clamped to the fork lugs by nuts. This subject-matter does not appear in the Specification as accepted.
Patent GB-1205194-A (GB)
Title: Improvements in and relating to sod seeders
Inventor: MAIN RONALD STUART
IPC: A01B49/04
Filed: 1969-03-26
Abstract: 1,205,194. Sod seeders. R. S. MAIN. 26 March, 1969 [1 April, 1968], No. 15729/69. Headings A1B and A1D. In a sod seeder and tilling tine combination, the sod seeder comprises one or more compartments, e.g. for seed and fertilizer, within a seed box 7, a sowing boot comprising a pair of side walls 10, the lower edge of at least one wall tapering upwards from front to rear, and adjustment means for adjusting the position at which seed is delivered from the box to the soil, thereby to control the depth of sowing, and is attached to the rear of a tilling tine 13 of a cultivating implement so that the tine vibration is transmitted to the sowing boot to cause soil to fall back into the ploughed furrow to cover the seed. The seed box 7 has side walls (7a), Fig. 2 (not shown), near the bottom, terminating in a holed bottom end 9. Seed falls through holes 20 and is directed to the ground via a holed cross piece 14 and and deflector plate (not shown) or one or more flexible feed tubes 16, adjustably positioned within the seed boot by locating pins 17. A seed plate 18 having holes of various diameters may be used to vary the seed delivery rate, alternatively this may be varied by a mechanism similar to that used to adjust the aperture of a camera lens. A compression wheel may be attached to the rear of the box and a push rod may be located over the sowing hole 20 to force seed through the aperture.
Patent GB-916784-A (GB)
Title: Improvements in or relating to the manufacture of porous ceramic materials
Inventor: FREETH VINCENT FRANCIS
IPC: C04B38/06
Filed: 1960-05-04
Abstract: Porous ceramic material is produced by impregnating a self-supporting porous matrix body, which is composed of material capable of being removed by heat, with a powdered ceramic material or with a powdered mixture of ingredients which will produce a ceramic material on heating, and firing the impregnated matrix body to remove the matrix material, to cause said mixture if present to react to form a ceramic material, and to sinter the ceramic particles together.  The porous matrices mentioned are expanded cellulose and foamed synthetic organic polymeric material such as polyvinyl chloride, polyethylene and polyurethane.  Composite ceramic bodies may be prepared incorporating one or more porous components and one or more components formed of a dense ceramic material.  The ceramic powder utilized in the example consists mostly of alumina with small quantities of precipitated chalk, calcium fluoride, magnesium hydroxide and bentonite.  Porous porcelain may also be made by this process.
Patent GB-593985-A (GB)
Title: Improvements in liquid mixing devices
IPC: B01F27/91
Filed: 1945-06-21
Abstract: 5 9 3 , 9 8 5. Mixing apparatus. AYRES, W. H., and TEMPLE, P. L. June 21, 1945, No. 15884. [Class 86] Means for circulating and mixing liquids comprises a power driven impeller a which draws liquid through a telescopic duct formed by tubes i, j, k, the tubes j, k, being supported by floats m so that the upper end of the tube k is maintained below the surface of the liquid. The lower tube i is provided with internal radial fins o and is mounted on a base plate e having fins d. Bolts .f connect the base plate c with a top plate g which may form a manhole cover of a tank.
Patent GB-685824-A (GB)
Title: Improvements in or relating to self-sealing dust bags for suction cleaners
Inventor: DIPPEL MURIEL CLARA
IPC: A47L9/14
Filed: 1951-07-05
Abstract: 685,824. Paper bags. ELECTROLUX CORPORATION. July 5, 1951, No. 15956/51. Class 94(ii) [Also in Group XXVIII] A suction cleaner filter bag 11, Fig. 7, has its feed inlet opening 21 covered by an elastic membrane 30 having an aperture 31 of less cross-sectional dimensions than and in register with the opening 21 tending to prevent egress of dust and capable of being stretched within the elastic limit to accommodate a tubular feed member 18, Fig. 8. The bag is of folded paper with its neck adhesively secured to a stiff plate 20 provided with the opening 21 and carrying the membrane 30. Initially the aperture 31 is sealed by a narrow strip of paper 32 having a weakened section 35 which breaks on insertion of the tube 18. On withdrawing the tube 18 the strip 32 is trapped inside the bag by the membrane as shown in Fig. 9. In a modification the elastic membrane comprises overlapping sheets with the aperture in the overlapping parts. Specification 629,674 is referred to.
Patent GB-814011-A (GB)
Title: Platinum alloy thermocouple elements
IPC: H01L35/20
Filed: 1956-05-23
Abstract: A thermocouple has one limb made of an alloy of the composition, in per cent by weight:-Rh 13; Pt the balance, and the other limb made of an alloy of the composition Mo 0.5-6; W 0.5-10; Pt the balance. Specification 407,658 is referred to.
Patent GB-1216482-A (GB)
Title: Improvements in or relating to hydraulic torque amplifiers
Inventor: JACKSON JOSEPH FENWICK
IPC: F15B9/12
Filed: 1967-04-07
Abstract: 1,216,482. Fluid-pressure servomotor systems. PRATT PRECISION HYDRAULICS Ltd. March 6, 1968 [April 7, 1967], No.15982/67. Heading G3P. A torque amplifier comprises a multi-phase stepping motor 30 which axially positions a spool 6 via gearing 3, 4 and screw thread 5. The spool controls a rotary hydraulic motor 39 and movement of the latter is fed back to the spool via splined coupling 10 to rotate and thereby recentre the spool. Gear 4 is located between roller bearings 31, 32 which bear against backing plates 33, 34 the latter being biased by springs 35. Anti-backlash devices are provided in the transmission.