baber/WOPTO huggingface dataset:
Patent GB-336609-A (GB)
Title: The use of a spirit level bubble for control of apparatus and/or mechanism
IPC: G01C9/06
Filed: 1929-07-13
Abstract: 336,609. Watts & Son, Ltd., E. R., and Weston, S. July 13, 1929. Levels.-The movement of a spirit-level bubble or the image thereof is caused to affect light-sensitive apparatus. In Fig. 1 light from a source 1 is condensed by a lens 11 and passes through the bubble 3 on to a light-sensitive cell 5. In another form the cell is arranged to receive light reflected by the bubble. In Fig. 2 light passes through the bubble 3 and through an optical system 4 so that a bubble image 30 is projected on to a pair of light-sensitive cells 5 6. The cells may be included in an amplifying circuit including a relay operated by differential illumination of the cells, the relay being arranged to control the opening or closing of circuits operating any desired apparatus, such for instance as means for firing a gun when a particular inclination is reached.
Patent GB-542759-A (GB)
Title: Improvements in securing devices
IPC: F16B29/00
Filed: 1939-07-25
Abstract: 542,759. Internal clamps. JAEGER-AVIATION. July 25, 1939, No. 21615. Convention date, Aug. 5, 1938. [Class 44] [Also in Group XXVIII] A securing device, for maintaining plates 9, 10, or the like juxtaposed, with or without mutual contact, comprises a unit having a cylindrical core 1 on which a rubber socket 5 is supported throughout its length. A base 12 on the core engages the socket 5 at one end, and at the other end is a cylindrical member 14 having a diameter not exceeding that of the socket. A clamping screw 13 passing through the core and threaded into the member 14 produces axial crushing of the socket so as to produce a retaining bulge 5a thereon. The whole unit is introduced into holes in the plates 9, 10, from one side thereof. If the plates are spaced apart one or more bulges may be formed on the middle portion of the socket which may have inextensible hoops fitted around it at these parts. The Specification as open to inspection under Sect. 91 comprises also constructions in which a sleeve 3, Fig. 2 (Cancelled), is secured to a wall 1 by a rubber socket 5, the latter being compressed axially between a head 4 on the sleeve 3 and a washer 6 upon tightening up a nut 7 threaded to the sleeve 3. The head 4 can be passed through the bore in the plate 1 during assembly. This subject-matter does not appear in the Specification as accepted.
Patent GB-1465343-A (GB)
Title: Manufacture of seams in fabrics
IPC: B29C65/00
Filed: 1974-05-15
Abstract: 1465343 Seaming finishing and folding edges of non-metallic sheet material CENTRALNE LABORATORIUM PRZEMYSLU LNIARSKIEGO 15 May 1974 [16 May 1973] 21628/74 Heading B5K Two fabric portions 3, 7 are joined by placing the portions in overlapping relationship one on either side of a thermoplastic strip 5, positioning a second thermoplastic strip 4 in contact with the portion 3 and in register with the strip 5, and pressing the strips 4, 5 and the portions 3, 7 together whilst applying high-frequency electric current. Preferably a third thermoplastic strip 6 is positioned in contact with the portion 7 and in register with the strips 4, 5. The pressure is applied by dielectric welding electrodes 2, 8. The joining may be to join two fabric pieces together or to reinforce a single edge of a fabric piece by folding a portion back over one of the strips with one or more strips placed in register with the first strip.
Patent GB-224976-A (GB)
Title: Improvements in variable inductances
IPC: H01F21/02
Filed: 1923-08-27
Abstract: 224,976. Mansbridge, G. F. Aug. 27, 1923. Inductances.-In a variometer the elements are wound so as to have low distributed capacity and are mounted on discs capable of rotation relative to one another about a common axis passing through the centre of the discs. The elements may be of single layer spaced coils or basket coils or multilayer low-capacity coils of known type. In one form, the stator comprises a pair of opposite wound kidney-shaped coils c, d, Fig. 1, mounted in a recess in an ebonite disc a provided with legs a<1>, Fig. 5. The outer end of the coil c is connected to the inner end of the coil d and the other ends are connected to terminals on the lower side of the disc a. The rotor comprises a similar and similarly connected pair of coils mounted in a, recessed disc b, provided with a central hollow plug g mounted in a bush a<2> in the disc a. The plug g has a threaded end on which is mounted a nut g<2> to keep the discs in engagement. The plug is insulated from the coils by a sleeve g<1>. The rotor windings are connected by flexible leads passing through the plug g to terminals on the stator. Strips of metal are provided for connecting the latter terminals with those connected to the stator windings so that the windings are in series or parallel. A rod b<4> provided with a knob b<3> is secured to the plug g. Rotation is limited by an upstanding lip a<3> in the upper edge of the disc a, taking into a recess b<1> extending partly around the lower edge of the disc b. A pointer h secured to the disc a registers with a bevelled dial b<2> vulcanized or otherwise secured to the disc b. Cores of powdered iron obtained chemically or electrolytically may be inserted in the spaces l and a part or the whole of the mechanical supports may be made of this material. Each pair of coils may alternately be D-shaped or circular. The coils may be wound in sections and means provided for cutting one or more sections out of circuit. Specification 22206/05 is referred to.
Patent GB-1029907-A (GB)
Title: Pin-and-socket electrical connectors
IPC: H01R12/71
Filed: 1964-05-26
Abstract: 1,029,907. Two-part couplings. AMP Inc. May 26, 1964 [June 10, 1963], No. 21646/64. Heading H2E. A plug or socket connector member is formed of two axially aligned spaced tubular portions 6, 10 connected by spring contacts 12 extending helically about the axis of the tubular portions, the spring contacts being arranged to flex radially and to be torsioned longitudinally as a result of mating the connector member with a corresponding rigid member. The member is formed from a spring-tempered sheet metal blank formed with parallel angularly arranged slots between its ends and rolled so as to have either a circular or rectangular cross-section. If a socket is formed in this manner, it may be supported in a plate 20, Fig. 3 (not shown), by means of a hollow post 26 having resilient detents 42 engaging a flange 8 to hold the upper part of the contact firmly while the lower portion of the contact is free to move in the post. A lead 24 may be fixed to the post by an annular cap 36 as described in Specification 944,544. The socket may be formed with two open ends to form a plug-in sleeve connector. If the connector is formed as a plug, Fig. 17 (not shown), the end 98 may be tapered to guide the pin into the socket.
Patent GB-224326-A (GB)
Title: Improvements in and relating to frames for velocipedes more particularly intended for juveniles
IPC: B62K25/04
Filed: 1923-08-27
Abstract: 224,326. Cole, H. Aug. 27, 1923. Spring devices; driving-chains, adjusting.-In a bicycle, more particularly for juveniles, of the type having a frame of the form shown, the lug 9 carrying the seat tube 11 is formed with a pair of horizontal flanges 14, to which are secured a pair of laminated springs 15 shaped at the rear ends to carry the spindle of the rear wheel. Bolts 20 are passed through holes in the flanges 14, in the springs 15, and in a lower clamping- plate. The tension of the chain is adjusted by adjusting the effective length of the springs 15, or by adjusting the position on the horizontal frame tube 1 of a lug 24 carrying the pedal cranks.
Patent GB-1324903-A (GB)
Title: Method and apparatus for parting substrates
IPC: B23K26/40
Filed: 1971-04-19
Abstract: 1324903 Cutting by lasers WESTERN ELECTRIC CO Inc 19 April 1971 [19 Feb 1970] 21835/71 Heading B5E [Also in Divisions B3 and C1] A method of parting a substrate 10 carrying a plurality of electrical circuits or components 17 on one side thereof comprises focusing upon a point on the opposite side of the substrate a beam of radiant energy of sufficient power density to produce a fracture of the substrate at that point, and causing relative displacement between the substrate and a beam of radiant energy directed to said one side of only sufficient power to propagate the fracture, the displacement being such that the fracture is continued along a predetermined path 18 under the influence of the second mentioned beam alone to effect the required parting of the substrate. In apparatus for carrying out the method, the substrate is mounted with one edge overhanging a table 11 movable by a rack-and-pinion 12, 13 driven by a motor 15. The table is disposed beneath a laser 20 having a lens 21 for focusing a beam therefrom, after reflection by a mirror 26, prism or light guide, upon the lower surface of the substrate 10 which on its upper surface has the components 17. The focused beam acting on the lower surface causes an initial fracture of the substrate. As the table is moved, the substrate intercepts the beam directed to the mirror, which may be fixed or mounted for movement with the table, so that a slightly defocused beam of less power acts on the upper surface to propagate the fracture along path 18 as the substrate is moved beneath the laser. In another embodiment, separate lasers act on the upper and lower surfaces, the laser acting on the upper surface being of less power or defocused compared to that acting on the edge of the lower surface. The substrate may be an insulating material, such as glass, alumina, ceramic, quartz, sapphire, or a semi-conductor material such as silicon or germanium.
Patent GB-879311-A (GB)
Title: Improvements in foot operated propulsion devices for propellers, bicycles, small boats, small cars and the like, driven by means of the feet
IPC: B62M1/10
Filed: 1960-06-22
Abstract: 879,311. Swimming appliances. WATHNE, N., FJON, A., and FREDRIKSEN, B. June 22, 1960, No. 21877/60. Class 77. [Also in Groups XXVI, XXXI and XXXIII] A propelling device 10 (Groups XXXI and XXXIII) with a propellor 14 is attached to a belt-float 16 around the body of a bather 15 who operates it by upward and downward movements of belts 4 and 5 attached to his feet.
Patent GB-1393710-A (GB)
Title: Binary adders
IPC: G06F7/50
Filed: 1972-05-10
Abstract: 1393710 Binary full adder HONEYWELL INFORMATION SYSTEMS Inc 10 May 1972 [16 July 1971] 21985/72 Heading G4A An addend A, an augend B and a carry Ci having voltage levels V L  or O are passed to an operational amplifier 1 where they are summed to produce an output V s  which is compared in differential comparators 2, 3, 4 with respective reference voltages 3V R , 2V R , V R , where V L > V R . The outputs of these comparators produce a carry signal Co and a sum signal S through exclusive NOR gates 5, 6. Detailed transistor circuits are described (Fig. 3, not shown).
Patent GB-315798-A (GB)
Title: Improved process for the formation of an insulating coating on parts of electrical apparatus
IPC: C23C22/73
Filed: 1930-11-10
Abstract: 315,798. Brabant, P. July 18, 1928, [Convention date]. Coating.-Electrical apparatus made of or coated with aluminium, magnesium or a similar metal or alloy is provided with an insulating cover of the oxide by immersing the article in a bath of oxidizing liquid and then gradually heating it by an electric current until the liquid in the bath boils. Water may be employed as the oxidizing liquid. The action is stated to be assisted in the case of a coil by electrolysis due to difference of potential between the convolutions and the layers. Complete impregnation of the coils is obtained by immersion in a liquid under pressure or by introducing absorbent material such as asbestos or perforated or slotted material between the layers. Specification 15896/09 is referred to. According to the Specification as open to inspection under Sect. 91 (3) (a) the articles are, after immersion, heated by an electric current until dry. This subject-matter does not appear in the Specification as accepted.
Patent GB-678617-A (GB)
Title: Improvements relating to boxes and like containers formed from paper, cardboard, corrugated board or the like
IPC: B65D5/00
Filed: 1949-08-25
Abstract: 678,617. Boxes. KATZMAN, A. Aug. 25, 1949 [May 4, 1949], No. 22151/49. Class 18. A box or container made of paper, cardboard, corrugated board or the like and having a bottom closure disposed inwardly of the base, has its walls formed of a unitary blank that is folded on itself in two directions to provide a neck or collar that fits within the base of a similar box when the boxes are stacked. As shown in Fig 2, a box with a neck 11 is formed by folding the edge of a blank inwardly and outwardly and then securing the ends of the blank together, e.g., by adhesive or staples, to form a tubular body, the edge remote from the neck being folded inwardly to provide a pocket for the flanges of a recessed bottom closure 21 that is secured by staples. Alternatively, a double walled box with a neck 34, Fig. 8, may be formed by folding a blank C, Fig. 7, on itself about a score line 40, folding a flap portion 39 about a score line 38 so that it lies between the plies and securing the blank in tubular form by means of a flap 37. The flanges of the bottom closure are imprisoned between two opposed walls and flaps 31, 32 cut therefrom and the remainder are secured directly to the other walls by staples. The inner wall portion is bent inwardly about score lines such as 53, 54, 55, 56 to form re-entrant recesses 61, 62, 63, 64 at the corners. The bottom closure may have a depending rib 24, Fig. 3, for reinforcing purposes and the neck 11 or 34 and the lower folds of the box may be notched to accommodate it.
Patent GB-316308-A (GB)
Title: Improvements in or relating to the manufacture of abrasive paper
IPC: B24D11/00
Filed: 1929-07-18
Abstract: 316,308. Carborundum Co., Ltd., (Assignees of Martin, H. C.). July 28, 1928, [Convention date]. Emery and sand cloth and paper.-In order to prevent the abrasive surface of abrasive paper from becoming concave due to the contraction of the adhesive upon drying, the back of the paper also is coated with adhesive or other substance, which, on contraction, causes the paper to become flat, or with the abrasive surface convex, as in Fig. 3.. Fig. 1 shows apparatus for coating the back of the paper after coating the abrasive surface, and consists of a tank of glue solution 6, the glue being applied by a roller 5 to the paper passing from a roll 1; abrasive is fed from a device 7 and the paper, after passing over a second glueing roller 8, is fed over a roller 10, which applies glue to the back surface. The Specification as open to inspection under Sect. 91 (3) (a) comprises also means whereby the flattening may be achieved by the use of paper having plies of different contractile characteristics, or by the use of paper which will counteract the contraction of the adhesive. This subject-matter does not appear in the Specification as accepted.
Patent GB-1075318-A (GB)
Title: Improvements in and relating to film capacitors
IPC: H01G4/10
Filed: 1965-05-25
Abstract: 1,075,318. Capacitors. HUGHES AIRCRAFT CO. May 25, 1965 [Aug. 25, 1964], No. 22214/65. Heading HIM. A thin film capacitor comprises a borosilicate glass, fused quartz or ceramic substrate: on which an electrode of aluminium is evaporated, overlain by a dielectric layer of vacuum evaporated titanium oxide, which is anodized in tartaric acid or methyl ethyl phosphate solution and on which a further aluminium electrode is evaporated.
Patent GB-1435198-A (GB)
Title: Sintering processes
IPC: C22B1/20
Filed: 1973-05-10
Abstract: 1435198 Sintering iron ore NIPPON STEEL CORP 10 May 1973 [10 May 1972 8 June 1972 26 June 1972 6 July 1972] 22317/73 Heading C1A [Also in Division F4] Iron ore is sintered in a conventional downdraught continuous sintering machine wherein moisture (as liquid water or saturated steam) is added to the surface of the sinter, after the top surface has been sintered, to cool the sintered material to prevent further conversion. The moisture is preferably added in amount such that the relative humidity of the exhaust gases from the bed is from 5 to 20%, to enhance the efficiency of any electrostatic dust precipitators. Also the sinter bed, before removal from the machine can be utilized as a dust filter for dust laden gases produced in later mechanical operations on the sinter produced by the above method.
Patent GB-793811-A (GB)
Title: Solenoid-actuated electric switch
Inventor: BOURNE WILLIAM GEORGE
IPC: H01H51/06
Filed: 1955-08-04
Abstract: 793,811. Electromagnetic switches. ROTAX, Ltd. July 23, 1956 [Aug. 4, 1955], No. 22468/55. Class 38 (5). A solenoid plunger e normally holds a disclike bridging contact d against fixed contacts a through a spring f and is itself held by a spring i acting on a stem h abutting the plunger end, energization of the coil c causing movement of the plunger towards an iron plug g and opening of the contacts. To prevent this movement taking place due to accelerating forces applied to the switch, the stem h is provided with different diameter portions o, o<SP>1</SP> connected by a bevelled shoulder o<SP>2</SP> and a housing p in which the stem slides has openings q accommodating spring-pressed balls r. These balls bear against the shoulder o<SP>2</SP> when the switch is closed and their resistance is overcome by the coil c when the switch is opened. A spring blade s biases the balls through levers t and pins u. A further, normally-open bridging contact m may be provided biased by a spring n and co-operating with fixed contacts k.
Patent GB-260958-A (GB)
IPC: A24F15/04
Filed: 1926-09-13
Abstract: 260,958. Bellairs, N. A. Nov. 7, 1925, [Convention date]. Addition to 250,830. Contents, delivering. - The distributing cylinder 7 of the box of the parent Specifications is provided with a member 18 bv which is is manipulated and which, by contacting with the rear of the box, forms a stop to limit the rotation of the cylinder; one or more projections 19 on the member 18 penetrate through one or more notches 20 in the back wall of the box when the cylinder is rotated and prevent the cigarettes &c. forming an arch over the delivery opening.
Patent GB-1548279-A (GB)
Title: Preapration of pyrryl2acetonitriles
IPC: C07D207/337
Filed: 1976-06-01
Abstract: Pyrrole-2-acetonitriles are prepared by reacting a dialkyl(pyrrole-2-methyl)amine corresponding to the general formula <IMAGE> in which R1 is hydrogen or an alkyl group with 1 to 4 carbon atoms, and the radicals R2 and R3 are, independently of one another, identical or different alkyl groups with 1 to 4 carbon atoms, with an alkyl halide quaternising agent to form the corresponding quaternised salt, and displacing the amine from this salt with aqueous alkali metal cyanide in the presence of a solvent which is immiscible with water, in which the pyrrole-2-acetonitrile product is soluble.
Patent GB-1345995-A (GB)
Title: Diffusion of dopants into semiconductor wafers
IPC: C30B31/10
Filed: 1972-05-15
Abstract: 1345995 Doping semiconductor wafers SIEMENS AG 15 May 1972 [25 June 1971] 22652/72 Heading B1S Dopant is diffused into a plurality of semiconductor wafers contained in a number of relatively narrow tubes contained in a relatively large tube wherein the tubes are made of a semiconductor material the same as the wafers, by heating the tubes and wafers to the diffusion temperature and allowing the vaporized dopant to contact the wafers. As shown, several tubes-2, are arranged in tube 1, with their axis parallel to the longitudinal axis of 1. The wafers 3 packed in tubes 2 are held in position in each tube by thicker end wafers 4 and 5. All the wafers are of smaller diameter than the tubes to permit diffusion of the dopant through the tubes. The wafers 4 and 5 are prevented from falling out tubes 2 by constrictions 6. The dopant is supplied from vessel 8. Tube 1 is gas-tight sealed by plug 7 preferably made of the same semiconductor material as tube 1. In use tube 1 is evacuated and heated by filament winding 9, to the vaporization temperature of the dopant, and the temperature maintained for about 24 hours. In a modification, not shown, each of the tubes 2 are closed off at one end by means of a base 10 thereby dispensing with wafer arrangement 4. Also the tube 1 is positioned inside a quartz ampoule. The wafers doped are preferably made of silicon. Wafers made of germanium and compounds of Group III-V compounds and Groups II-VI compounds can similarly be doped.
Patent GB-1223111-A (GB)
Title: Improvements in and relating to friction welding
Inventor: MILLS LIONEL WILLIAM
IPC: B23K20/12
Filed: 1967-05-16
Abstract: 1,223,111. Welding by pressure. STEELWELD Ltd. 14 May, 1968 [16 May, 1967], No. 22679/67. Heading B3R. Friction-welding apparatus comprises welding control apparatus including means operable to produce a first signal indicating contact of the parts to be welded, a measuring device actuated by said signal and responsive to the extent of burn-off and for causing production of a second signal indicating a predetermined extent of burn-off, and means responsive to the second signal to prevent further burn-off. The first signal may be a pressure rise in thrust cylinders of the welding apparatus at the moment of contact of the parts to be welded, or may be delivered from actuation of a mercury, or other acceleration-responsive, switch, or from completion of an electric circuit by contact of the parts to be welded, or from photo-electric apparatus arranged to detect contact between the parts to be welded, or from the motor used to rotate one of the parts to be welded. The second signal may cause switch-off of the current to the motor rotating one of the parts, application of brakes and of forging pressure. The measuring device comprises a slidable rod 12, the gap 16 between one end of which and a limit switch 15 can be set by a micrometer 13. Freely slidable on rod 12 is a clamp 17 secured to the moving welding head. The first signal causes the clamp 17 to grip the rod 12 which then advances with the head and eventually trips switch 15 to cause generation of the second signal. The gap 16 is set in accordance with the desired extent of burn-off. In another embodiment (not shown) the movement of the measuring device is rotational.
Patent GB-315119-A (GB)
Title: Improvements in detachable propelling installations for ships and boats
IPC: B63H20/34
Filed: 1928-08-04
Abstract: 315,119. Holbeach, R. A. Aug. 4, 1928. Detachable propelling-installations.- In a means of propulsion for ships or boats where a detachable installation with the propeller acting on the tractor principle is used, part or parts of the under-water body are designed on counter propeller principles. Figs. 1, 2, and 3, show the blades 1 and 2 integral with the gear and propeller case. The top blade and the skeg may be pivoted and adjusted manually or automatically to the slip stream. In the latter case a damping arrangement is fitted. The cooling water is obtained from inlet 8 in the upper blade. A vane or rudder 9 is also fitted and means may be provided to protect the propeller. A similar construction may be applied to forms of detachable propelling installations other than those arranged on the tractor principle.