baber/WOPTO huggingface dataset:
Patent GB-616924-A (GB)
Title: Improvements relating to thermally controlled electric switches
IPC: H01H37/46
Filed: 1946-09-23
Abstract: 616,924. Thermal switches. BARBER, A. A. Sept. 23, 1946, No. 23395. [Class 38 (v)] A thermal switch suitable for starting electric discharge lamps has a resilient rectangular - shaped metal frame 1 having a limb 2 which is free at one end. This free end carries a contact 3 which co-operates with a fixed contact 4. A metal rod 6 is secured in tension to the base of-the frame by means of an insulating bead 7 and to the top of the frame by means of an adjusting nut 9 which bears on a further bead 8 through which the rod passes. When the rod 6 expands under the influence of a heating coil 10 the contacts 3, 4 are opened
Patent GB-155970-A (GB)
Title: Improvements in and relating to beam compasses
IPC: B43L9/04
Filed: 1919-11-17
Abstract: 155,970. Gill, W. Nov. 17, 1919. Beam compasses.-A device is mounted on a beam for holding a pencil &c., the said device having inherent or provided flexibility and carrying a friction roller for fine adjustment. The form shown in Figs. 1 and 2 has inherent flexibility, and consists of a wire rectangle b which is bent to the form of a wide-angled V and has a loop b<1> through which the pencil &c. passes. The long sides of the rectangle are joined by uprights b<2>, b<3>, the former carrying a pivoted plate b<1> against which the pencil &c. bears. A friction roller b<5> is mounted on one of the short sides of the rectangle and bears against the beam. In the form shown in Figs. 7 and 8, the device is formed by press tool work from sheet metal and comprises a frame having three faces B<1>, B<2>, the upper and lower faces B<2> having apertures B<3> to receive the pencil &c. A plate B<4> backs up the pencil and has lugs B<6> so that by turning it round a smaller pencil can be held. A roller B<5> is pivoted in the frame and flexibility is provided by a spring d. In a further modification, the device is formed by press-tool work, and has two arms projecting along the front face of the beam, each arm carrying a friction roller.
Patent GB-254587-A (GB)
Title: Improvements in lamp shades
IPC: F21V1/00
Filed: 1925-11-11
Abstract: 254,587. Schulte, F. Nov. 11, 1925. Reflectors.-A reflector built up from a number of narrow tapered silvered glass plates b is provided with a retaining ring d which has a flared lower end f for engaging the upper ends of the plates and a flared upper end g for engaging the beaded edge e of the outer portion a of the reflector. The lower ends of the plates may be engaged by a beading formed integrally with the outer part a or by a detachable channelled rim composed of two segments h fastened together as by means of screws i.
Patent GB-1307538-A (GB)
Title: Semiconductor structures and methods for forming such structures
IPC: H01L21/761
Filed: 1970-06-12
Abstract: 1307538 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 12 June 1970 [30 June 1969] 28450/70 Heading H1K A semi-conductor structure to reduce isolation areas in integrated circuits comprises a substrate 10 of one conductivity type having a semi-conductor layer 23 of the same conductivity type on one surface, with a buried layer 15 of the opposite conductivity type adjacent the substrate surface and surrounded by a second buried region 21 of the one conductivity type. The layer 23 which may be epitaxially deposited has diffused within it an annular region 24 of the opposite conductivity type so as to reach down from the layer surface and contact the buried region 15, so enclosing a portion 25 of the layer 23. A second diffusion of the opposite conductivity type may be made within the enclosed portion 25 to form a region 26. Contacts e.g of aluminium may be made to regions 26, 25 and 24, the region 26 forming the emitter of a transistor, portion 25 the base, and regions 24 and 15 the collector. The second buried region 21 prevents inversion at the substrate-layer 23 interface. In an alternative embodiment, by suitable doping of the layer 23 during deposition, the out diffusion from region 15 causes a thin intrinsic region (31), step 12A, (not shown) to be formed in enclosed portion 25. Further doping of the same conductivity type as the layer is then required to form the base region. The double diffusion process, i.e. of the base and subsequently the emitter enables the thickness of the base to be accurately determined. An integrated structure using two complementary transistors, one being formed with a further region within region 26, is also described.  The devices may be formed from a silicon substrate using photoresist techniques and arsenic, boron, gallium or phosphorus as dopants. In a reference to Specification 1,300,174, the emitter region 26 may be replaced by a Schottky-barrier junction.
Patent GB-642160-A (GB)
Title: Improvements in or relating to apparatus for treating rubber
IPC: B29D23/24
Filed: 1947-10-24
Abstract: 642,160. Extruding rubber pellets. FARRELBIRMINGHAM CO., Inc. Oct. 24, 1947, No. 28460. Convention date, June 29, 1945. [Class 87 (ii)] Uncured rubber is fed from a hopper and extruded through perforations in a cylindrical shell 19 by means of a screw 14. The extruded rubber is cut into pellets by knives 63, Fig. 6, mounted on angle irons 37 fixed between rings 38, 41. The ring 41 is rotated by a motor 22. Screws 69, 73 allow the knives to be swung inwardly or outwardly about a rod 66. A small clearance exists between the knives and the shell 19. The cutting apparatus is contained in a casing 20, into which powder, e.g. talc, is blown through nozzles 59 and windows 61 in the ring 38, to powder the rubber pellets. The pellets fall out through an opening 76 and may be removed on a conveyer. The powder-laden air is exhausted through screens 83, 84 to be reintroduced into the casing. The casing of the extrusion chamber may be cooled. Extra perforations are provided for rubber escaping between the shell 19 and a ring 32. U.S.A. Specifications 2,286,405 and 2,370,952 are referred to.
Patent GB-1346442-A (GB)
Title: Loading apparatus
IPC: B65G63/02
Filed: 1971-06-17
Abstract: 1346442 Lifting apparatus; loading containers OKURA YUSOKI KK 17 June 1971 28499/71 Headings B8H and B8Q Apparatus for loading pallets 38 on to a truck 40 comprises forks 13 which are mounted on a frame 11 which is movable upwardly and downwardly along the rails 10 of a frame 9 which is adapted for pivotal movement about a shaft 8 located in a frame 6 which is movable to the left and right hand side in Fig. 1, along rails 5 of a frame 3 which is movable towards and away from the truck 40 along the rails 2 of a fixed frame 1, the apparatus further comprising a conveyer 35 which conveys the pallets 38 to a position opposite the forks 13. In operation of the apparatus after the conveyer 35 has located the pallets 38 opposite the forks 14 the frame 11 is adjusted to dispose the forks 14 at the level of the said pallets, the frame 3 is moved forwardly to move the forks under the pallets and the frame 11 is raised to support the pallets on the forks. The frame 3 then moves the forks to a position over the truck 40 and the frame 11 is lowered to rest the pallets on the truck. The position of the forks 13 relative to the pallets 38 is adjusted by means of the frame 6, and if when the pallets are lowered on to the truck the deck of the truck is lopsided the pivotal frame 9 adjusts the angle of the forks so that they can be withdrawn from under the pallets 38. The up and down movement of the frame 11 and thus the forks 13 is achieved by means of two hydraulic rams 28 (only one of which is shown) which are mounted at one end on the frame 6 and on whose pistons 29 a sprocket wheel 30 is mounted around which passes a chain 32 which is connected at its ends to the frames 3 and 11 respectively, a pair of hydraulic rams 33 (only one of which is shown) being interposed between the frame 11 and chains 32, said rams being simultaneously actuable in opposite directions to provide for differential movement of the ends of the frame 11. Pivotal movement of the frame 9 about the shaft 8 is effected by means of a ram 22 whose piston is connected via a rotatable shaft 25 to bell-crank type connecting bars 26, 27.
Patent GB-1036828-A (GB)
Title: Improvements in and relating to fluid taps
IPC: F16K31/53
Filed: 1964-07-10
Abstract: 1,036,828. Valves. E. M. SCHAVERIEN. June 28, 1965 [July 10, 1964], No. 28635/64. Heading F2V.  The closure 7 of a water tap, provided with a washer 8, is mounted on a spindle 9 which is non-rotatably displaceable through a nut 11 and is formed with a rack 10 on either side for engagement with a pair of worm-wheels 4 provided with pinions 3 at their upper ends which are rotated by engagement with teeth 14 formed in the interior of casing 13 whereby the valve is operated by rotation of handle 15 of casing 13 and continued rotation whereof at the termination of the closing movement displaces the worms 4 axially upwardly for locking engagement between tapered pivots 18, formed at the upper end of casing 1, and sockets 19 formed in the upper surface of the pinions 19. The worms 4 are retained in casing 1 by bolts 11<SP>1</SP> (Fig. 2, not shown) which extend through the casing to engage nut 11 and an adjustable stop 20 at the upper end of body 1 limits upwards movement of spindle 9. A domed lid 16 at the upper end of body 1 carries indicating means 17, e.g. for " hot " and " cold." With the exception of screws 11 and 20, the valve may be formed entirely of moulded synthetic resin.
Patent GB-279886-A (GB)
Title: Improvements in and relating to arc welding electrodes and holders therefor
IPC: B23K9/24
Filed: 1927-10-28
Abstract: 279,886. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Oct. 30, 1926, [Convention date]. Heating by electricity.- A metallic electrode for use in arc-welding in a protective atmosphere is provided with one or more holes, grooves or flats through which a gas or a liquid such as methanol is conducted. The electrode may be centrally bored or may consist of a core provided with a groove 3 or a flat and surrounded by a metal tube 5, flux being placed between the core and tube. The electrode mav also consist of a tube having a soldered welded or folded longitudinal seam which may be provided with flux. The electrode may be screwed into the nozzle 22 of a hand tool 10, the supply of gas being regulated by a valve 6 operated by an eccentric &c.
Patent GB-822745-A (GB)
Title: Improvements in or relating to manifold carbon transfer devices
IPC: B41J17/00
Filed: 1956-09-21
Abstract: 822,745. Carbon sheet holders. ENGLAND, H. M. Aug. 28, 1957 [Sept. 21, 1956], No. 28934/56. Class 16 In a manifold carbon transfer set for use with typewriters which comprises a flexible backing sheet 10 preferably of thermoplastic material having secured at one end a pair of stop or guide members such as 13, 23 and 14, 24 and provided adjacent the opposite end with a plurality of pockets 20 disposed in adjacent relationship along each lateral boundary of the sheet 10 and a plurality of flexible strips 30 having their opposite ends detachably engaging in oppositely disposed pockets 20, each of said strips forming means for detachably securing a carbon transfer sheet to the backing sheet 10, each pocket 20 is provided with a number of openings 27 spaced apart along its length, and a least one of the stop or guide members 13, 23 or 14, 24 is laterally displaceable to form an adjustable guide for an edge of sheets of stationery (not shown). The sheet 10 is folded round a rod 11 and welded to itself at 12, the rod and sheet engaging in keyhole-section slots in the guide members 13, 23 and 14, 24 of which the parts 23 and 24 are movable along a guide rod 16. Whatever length of strip 30 is exposed to carry a carbon transfer sheet, the parts 23 and 24 are adjusted to lie opposite the openings 27 in which the ends of the strip have been inserted. An auxiliary guide rod (not shown) for use with sheets of different widths and having a guide member 18, with which the rod 11 also engages, may be provided. The pockets 20 may be formed by welding a second sheet 22 of thermoplastic material to the sheet 10 along edges 25 and 26.
Patent GB-813467-A (GB)
Title: Improvements in or relating to circular-track variable resistors and potentiometers
Inventor: BLIGHT DENNIS JACK
IPC: H01C10/28
Filed: 1956-09-21
Abstract: 813,467. Variable resistors. PLESSEY CO. Ltd. Dec. 18, 1957 [Sept. 21, 1956], No. 28967/56. Class 37. A circular track variable resistor or potentiometer which may be wire wound or carbon track has as a moving contact a swash plate which is connected by a, bellows or a flexible diaphragm to a base member so as to provide a hermetically sealed enclosure for the movable contact point. Movement of the swash plate relative to the resistive track is produced by a wiper arm moving across the outer surface of the swash plate. Current connections to the swash plate are made so as to avoid movable contacts outside the sea.led enclosure for example through the swivel support or through metallic bellows. As shown the resistive track a is held in a pot-shaped base b of insulating material which is formed with a central pillar c on to which is sealed a pot-shaped spherical metal cap d. The swash plate f has a domedshaped indentation which rests on the cap d thus forming a swivel joint. The point of contact between the swash plate and the track is determined by a wiper arm g which does not form part of the electrical circuit and is hermetically sealed by a bellows k one end of which is attached to the swash plate and the other to the pot shape base b.
Patent GB-1517573-A (GB)
Title: Measuring method and equipment for locating a break in an optical cable
IPC: G01N21/88
Filed: 1975-07-09
Abstract: 1517573 Locating breaks in optical cables R. BOUILLIE and P. LAMOULER 9 July 1975 [26 July 1974] 28974/75 Heading H4D The location of a break in an optical cable fibre is determined by measuring the duration (t 1 -t 0 ) of a go and return travel of a light pulse over a length L between one accessible end of the cable and the break, and deriving L from L = c(t 1 -t 0 )/2n, where c is the speed of light in vacuo and n is the refractive index of the cable material. The light pulse may be obtained from a gas or diode laser, the light path therefrom being split in two (Fig. 2, not shown), one path leading directly to a detector (e.g. a photodiode or photomultiplier) and the other to a second detector via the cable. The detector outputs may be displayed on an oscilloscope, their separation indicating duration (t 1 -t 0 ), alternatively the pulse source may be of variable frequency which is adjusted so that the reflected pulse coincides on the oscilloscope with a succeeding pulse obtained directly from the source, the frequency providing a measure of the required duration.
Patent GB-713356-A (GB)
Title: Improvements in or relating to undercarriage controllers for aircraft
IPC: B64C25/22
Filed: 1951-12-11
Abstract: 713,356. Valves. GLOSTER AIRCRAFT CO., Ltd., KEY, K. J., and EDMUNDS, I. Dec. 11, 1952 [Dec. 11, 1951] No. 28989/51. Class 135. [Also in Group XXXIII] A hydraulic undercarriage mechanism is controlled by a valve operated by a push button device through a remote mechanical connection. As shown in Fig. 1, an up button 12 and a down button 13 are adapted to rock a lever 14 connected to Bowden cable operating the control valve. The groove 27, also seen in Fig. 2, is adapted to receive a stop 31 urged into the groove by a spring 33 acting on a cup 32. This stop is electrically withdrawn when the airspeed increases above a certain value, or when the pressure on the undercarriage legs decreases to a certain value, and thus prevents premature raising of the undercarriage. In an emergency, the undercarriage may be raised by heavy pressure on the up button. Member 26 is held fast by the stop, but the shaft 22 of the up button may move through it, compressing a strong spring 30. The piston member 28 then moves away from member 26, and stop 35 is interposed by spring 36, retaining the buttons in the up position. Stop 35 may be released manually. In an alternative embodiment (Fig. 4) groove 27 is replaced by an L-shaped groove, the stop 44 engaging the base of the L, and preventing axial travel of the button. In emergency, the button is rotated against spring 49, until the stop enters the axial portion of the L.
Patent GB-643887-A (GB)
Title: An improved container for penicillin or other viscous infectable substances
IPC: A61J1/06
Filed: 1947-10-30
Abstract: 643,887. Ampoules for surgical syringes. BICKFORD & SONS, Ltd., A. M. Oct. 30, 1947, Nos. 28997 and 28998. Convention dates, Oct. 31, 1946, and March 5, 1947. [Classes 81 (i) and 81(ii)] A container for penicillin or other viscous injectable substances comprises a tube 1, Fig. 2, in which the substance is held, and from which it can be ejected by pressure, and resilient apertured means 2 on the tube shaped to slidably receive the hollow tapered stem on the front end of a syringe. The contents of the tube are ejected by pushing plugs 7, 8 forwardly by means of a rod (not shown), the end cap 9 being removed. The aperture 5 is sealed by a resilient stopper 6 and a membrane 10 held in position by a circumferential' wire 4. In a modification, Fig. 5, a slidable plug 17 having an aperture 18 seals a tube 15.
Patent GB-880585-A (GB)
Title: Electrical connector for strip cable
IPC: H01R12/61
Filed: 1959-08-25
Abstract: 880,585. Two-part couplings. CANNON ELECTRIC CO. Aug. 25, 1959 [Sept. 29, 1958], No. 29011/59. Class 38 (1). In a multi-contact two-part electrical connector the exposed conductors of a strip cable, i.e. an insulating sheet with a plurality of spaced parallel conductors, with an end secured in the body of one part of the connector are pressed against the conductors secured in the body of the other part by a resilient member with a convex outside surface. As shown, a strip cable 13 enters a receptacle member 11, preferably of insulating material, through a slit 46 in a rear wall 22, which may be detachable, and passes over the apex 41 of the curved surface of a resilient member 35. The cable 13 is secured by folding an end 49 under the front edge 36 of the resilient member 35 which is then inserted in a groove 30 in a front wall 20 and by screws 55 which cut through the margin of the cable 13. Conductors 52 of the cable 13, exposed on the apex 41 and rearward slope 43 by stripping away the insulation, engage conductors in a similar co-operating plug member 10, having rabbeted edges 64 interfitting with a lip 63 on the side walls 18, 19 of the receptacle member 11. Contact pressure is increased by ribs 68 on the member 35 which may be a resilient sheet or of elastomer secured to the bottom wall 17.
Patent GB-1174289-A (GB)
Title: High-Torque Stepping-Motor
Inventor: FENGLER WERNER HERMANN
IPC: F16H55/24
Filed: 1967-06-23
Abstract: 1,174,289. Stepping motors; control of motors. W. H. FENGLER. 23 June, 1967 [13 July, 1966], No. 29045/67. Headings H2A and H2J. A stepping motor has a rotor 120 comprising a plurality of wound poles 142 co-operating with a stator having at least twice as many poles 144, 146 arranged to be energized as two sets by windings 147, 151 respectively. The rotor poles have enlarged pole shoes 137 which extend over two stator poles and winding 141 is energized from a D.C. source via slip rings to provide poles of alternate polarity. The stator poles are wound so that in each set adjacent poles are of opposite polarity. In operation winding 147 is energized to attain the position shown in Fig. 1 and winding 151 energized so that adjacent poles 144, 146 have the same polarity and the rotor poles move to span adjacent stator poles and the step is completed by de-energizing winding 147. Control circuitry (Fig. 20).-A full wave rectifying and switching circuit is used to pass current from A.C. source 20 to the stator windings 147, 151 of the motor and employs S.C.R's. which are gated by pulses applied to line 248. Positive pulses on line 248 pass through diode 252 and operate bi-stable flip-flop 260 which in turn operates one of bi-stable flip-flops 262, 264 to apply gating current to one of the S.C.R. groups (comprising 4 individual S.C.R's.) so that current flows through winding 147 or 151 in a first direction. The next positive pulse operates flip-flop 260 to operate the other one of flip-flops 262, 264 and causes current flow in the other winding. This current flow operates the respective one of the NOR devices 272, 274, 284, 286 to switch off, after a delay period, the current in the first winding. Further positive pulses on line 248 operate the respective S.C.R's. and cause current to flow in the opposite direction through the windings so that the rotor is stepped round. If negative pulses arrive on line 248 they pass to unit 270 through diode 254 and unit 270 operates to momentarily open reed switches 302, 304 and changeover reed switches 306, 308 so that a reverse sequence is obtained. Unit 270 also inverts the negative pulse so that flipflop 260 is always supplied with positive pulses. Further negative pulses then cause the S.C.R's. to operate to supply current to the windings in reverse sequence thereby causing reverse rotation of the rotor. In modifications, the stator and rotor may be side by side, Figs. 23-25 (not shown), and the latter may be permanently magnetized, or a linear motor may be provided, Fig. 26, 27 (not shown). The control circuit may only use half wave rectification, Fig. 3 (not shown), and AND logic modules may replace the NOR modules, Fig. 22 (not shown).
Patent GB-302457-A (GB)
Title: A carrier or support for ice cream containers
IPC: B65D5/52
Filed: 1927-11-01
Abstract: 302,457. Fulton, C. V., and Daymond, M. P. Nov. 1, 1927. Stands.-A folding carrier or support for ice cream containers comprises a sheet of cardboard or other suitable material having a central area divided into three parts adapted to be bent or folded to constitute the base a and two sides b of a triangular supporting structure, and having end flaps c partially severed by cuts b<3> extending from opposite sides to half the width of the central portion, locking slots and notches, and holes for the reception of the cones. The blank shown is folded so that the parts a, b assume a triangular form, the portions c being first folded back about the line c<2> and then retained by passing the portion c<4> into the slot b<2> opposite thereto. The serrated opening c<3> engages the upper part of the ice cream cone, and the point of the cone engages an opening b<4>. Slightly modified blanks are described.
Patent GB-1380785-A (GB)
Title: Halogenated epoxides
IPC: C08G65/24
Filed: 1972-06-21
Abstract: 1380785 Halogenated epoxides DOW CHEMICAL CO 21 June 1972 29100/72 Heading C2C [Also in Division C3] Novel compounds of general formula where each X and X<SP>1</SP> is Cl or Br and n is 0 to 10 are prepared by reacting the appropriate bromo-, chloro- or bromochloroneopentylalcohol with epichlorohydrin or epibromohydrin or mixtures thereof in the presence of a Lewis acid, e.g. stannic chloride, and then reacting the product with a base, e.g. sodium hydroxide, to produce the terminal epoxide. The compounds possess plasticizing and fire-retardant properties in polyvinylchloride and polyester compositions.