baber/WOPTO huggingface dataset:
Patent GB-1174223-A (GB)
Title: Tool Handle
IPC: B25B23/16
Filed: 1968-07-31
Abstract: 1,174,223. Hand-tool handles. H. AMTENBRINK. 31 July, 1968 [31 July, 1967], No. 36491/68. Heading B4K. A handle, e.g. for a screwdriver, has a barrelshaped portion (3) symmetrical about the longitudinal axis of the handle and having a middle region 4 where the handle is of greatest diameter and which in cross-section has a contour free of indentations (Fig. 3, not shown), the barrel-shaped portion being formed with a plurality of recesses 5, 6 extending longitudinally on either side of the middle region and being arranged regularly about the axis of the handle, adjacent recesses on each side of the middle region being separated by a ridge 7 which is convex in cross-section and concave in section in a plane through the longitudinal axis. The handle may have a hexagonal cross-section, and may be formed adjacent the blade of the tool with a hollow 1. Projections on the tool blade prevent relative rotation of the handle and tool.
Patent GB-619481-A (GB)
Title: Improvements in or relating to miniature electric motors
IPC: H02K23/56
Filed: 1946-12-12
Abstract: 619,481. Machines with permanent magnets. VAUGHAN, R. C., and ROTHEROE, J. R. Dec. 12, 1946, No. 36741. [Class 35] The armature of a miniature electric motor is wound in a number of coils each encircling the field magnet around which it is arranged to rotate. A thin shaft 3 which is kept under tension to increase its rigidity carries the stationary magnet 1 and the non-magnetic cylindrical former 5 on which the coils are wound and which may be of cardboard &c., is supported by non-magnetic end plates 4 carried on sleeves 4<SP>1</SP> freely rotatable on the stationary shaft. The commutator is engaged by wire brushes 18 and consists of strips of brass 9 secured at their ends by insulating washers 10 whilst the drive is taken from a pinion 12, freely rotatable on the shaft 3 and driven by arms 13 engaging slots 14 in the armature. The motor is covered by a soft iron casing 15 to which the ends of the shaft are bent over at 20, 23 to enable a tension to be produced in the shaft by a nut 24 and sleeve 21. The Specification also describes a modification in which the drive is taken directly from a shaft rotating with the armature, the magnet being supported by a stationary shaft on which the commutator rotates as before.
Patent GB-867627-A (GB)
Title: Improvements in or relating to rotary drill heads
Inventor: TAYLOR CECIL ARTHUR
IPC: B25D16/00
Filed: 1957-11-26
Abstract: 867,627. Percussive tools. RAWLPLUG CO. Ltd. Oct. 17, 1958 [Nov. 26, 1957], No. 36880/57. Class 124. [Also in Group XXII] In a rotary drill head for drilling concrete, stone &c., by a combined rotary and vibratory action, the spindle is connected at one end to a power source such as a portable electric drilling machine, and at the other end to a chuck, and has means for vibrating the drill bit during rotation thereof. The drill head comprises a non-rotatable casing 1, having a rotatable spindle 4 mounted therein, on which are secured face cams 15, 16, which co-operate with stationary face cams 14, 17 respectively, the co-operating cams having fine and coarse teeth for imparting rapid and slow vibrations to the spindle. A further pair of face-cams 6, 7 move a member 13 axially to select the pair of vibration producing cams required, when a sleeve 8 pinned to member 13 is rotated, to cause cam 7 to ride up on cam 6. On further rotation of sleeve 8 and cam 7 another pair of face cams 22, 23 move the spindle 4 to the right, through a ball-bearing 24 for disengagement of both pairs of vibration producing cams when a simple drilling operation is required. Sleeve 8 is locked in its operative positions by a spring latch 31.
Patent GB-1476168-A (GB)
Title: Rotary impeller pump
IPC: F04D15/00
Filed: 1974-08-22
Abstract: 1476168 Centrifugal pumps G BAUKNECHT GmbH ELEKTROTECHISCHE FABRIKEN 22 Aug 1974 [23 Aug 1973] 36888/74 Heading F1C In a double-inlet radial-flow pump, especially for central heating systems, the suction region 12 of the impeller 5 is provided with an axiallyadjustable control member 23 to proportion the liquid quantities entering the impeller via the respective inlets 8, 9. Thus, in use in a central heating system, the pump serves additionally as a mixer valve by connecting the inlet couplings 19, 20 respectively to the boiler and to the return main, and controlling the member 23 to suitably proportion the inlet flows to provide the desired temperature in the outflow through passage 17. The member 23 is adjustable by heating an expansion element 29 acting on actuating rod 24, as by an electric coil 28 receiving current of a magnitude dependent on an internal or external temperature sensor. Alternatively, the expansion element may be heated directly by the water in the return main, or the rod 24 may be adjusted by a rotary or lifting magnet or by a motor.
Patent GB-1166568-A (GB)
Title: MOS Type Devices with Protection Against Destructive Breakdown
IPC: H01L27/02
Filed: 1967-08-11
Abstract: 1,166,568. Semi-conductor devices; M.O.S. capacitors. WESTINGHOUSE ELECTRIC CORP. 11 Aug., 1967 [23 Sept., 1966], No. 36907/67. Headings H1K and H1M. A semi-conductor device such as a transistor comprising a body 10 having an insulating layer 17 on at least a portion of one of its major surfaces and an electrode 19 disposed on the insulating layer is characterized by the provision of means for preventing destructive breakdown of the insulating layer, said means consisting of first and second regions 21, 22 of the one conductivity type in the form of surface inclusions within the surface of the body and a conductive interconnection 20 between the electrode and the first region, the regions being spaced apart by a channel 24 of opposite conductivity type which exhibits punch-through at a voltage level below the breakdown voltage of the insulating layer. The resistivity of the body 10 is sufficiently low to prevent the formation of an inversion layer at the surface of the portion 15 of the body lying beneath the electrode 19 when there is no potential difference between the electrode and the body, the portion 15 being the channel between the source and drain regions 12, 13 of the transistor. The body 10 is preferably of silicon, the surface of which has been oxidized to form an insulating layer about 1000-1200 A.U. thick, and the electrode 19 of aluminium, but other insulating materials such as nitrides may be employed. A silicon dioxide layer of this thickness breaks down at about 100 volts and the channel 24 may consist of 10 ohm cm. n-type material about 12.5 Á. wide having a punch-through voltage of about 60 which is less than the avalanche breakdown voltage of the PN junction 23 between the region 21 and the body. In a modification (Fig. 5, not shown) the region 22 is omitted and punch-through occurs between the region (21) and the source region (12) of the transistor which is conductively connected to the body (10). In an alternative embodiment (Fig. 6, not shown) the device is a capacitor.
Patent GB-1315849-A (GB)
Title: 1,2,3-trithiane derivatives
IPC: A01P3/00
Filed: 1970-07-31
Abstract: 1315849 1,2,3-Trithiane derivatives SANDOZ Ltd 31 July 1970 [15 Aug 1969] 37036/70 Heading C2C The invention comprises compounds of formula n which R 1  and R 2  are each hydrogen, C 1 -C 4  alkyl, allyl, phenyl, benzyl, cyclopentyl or cyclohexyl or together with the nitrogen atom complete a pyrrolidine, piperidine or morpholine nucleus, and acid addition salts thereof, and R 3  is hydrogen or a C 1 -C 4  alkyl group; they may be prepared by reacting a compound of formula in which Y is hydrogen or a leaving group replaceable by sulphide, with sulphur dichloride when Y is hydrogen or with an alkali metal sulphide when Y is a leaving group replaceable by sulphide. Y may be, for example, a benzenesulphonyl, toluene-sulphonyl, methane sulphonyl or sulphite group. The starting materials may themselves be obtained by the reductive benzylation of a compound of formula e.g. with lithium in ammonia or sodium in butanol. The trithianes of the above formula and their acid addition salts, e.g. acetates, benzoates, oxalates, hydrochlorides and hydrogen sulphates may be used as active ingredients in pesticidal compositions. The compositions may contain conventional adjuvants and diluents and also other active agents.
Patent GB-1403575-A (GB)
Title: Optical viewing system
IPC: G02F1/13
Filed: 1972-08-09
Abstract: 1403575 Optical systems RANK ORGANISATION Ltd 12 July 1973 [9 Aug 1972] 37073/72 Heading G2J A viewing system e.g. in a microscope or theodolite, having optical components defining a viewing path 3 along which light passes to an eye-piece 2, includes a liquid crystal cell 4, means 9, 10 additional to the components for directing light through the cell 4 means 8 for applying an activating field to the cell, or to selected parts of the cell, and means 11, 12 for forming an image of the cell 4 in the viewing path 3, e.g. in the image plane 14 of the eye-piece 2, whereby a predetermined display is superimposed on the viewing path on activating the cell. The display may be a digital presentation, a graticule, a scale or cross-wires, and the cell may be of the dynamic scatter type or the high contrast type. If the latter, the cell may have linear surface textures or features on the cell walls arranged at right angles to each other, the cell being located between two polarizing filters (15), Fig. 2 (not shown), the polarizing directions of which are parallel to the linear textures &c. in adjacent walls. Activation of the cell, or selected parts therof, destroys the optical activity of those parts of the cell, which therefore passes no light through those parts.
Patent GB-1271734-A (GB)
Title: Method of and apparatus for removing wire pigtails
Inventor: CODY TOMMY DALE
IPC: H01L21/00
Filed: 1969-07-23
Abstract: 1,271,734. Breaking. TEXAS INSTRUMENTS Inc. 23 July, 1969 [5 Sept., 1968], No. 37107/69. Heading B3E. A method of removing from transistor headers 1, by suction forces, pigtails 9a and 11a of wire remaining after wires are stitch bonded to the ends of leads 13 and 15 of the headers comprises placing a bar 23 on a carrier 53 over two rows of headers 1 so that the headers are received in two slots 27. Ribs 29 on opposite sides of the slots bear down on the rims 3 of the headers and clamp them down against the carrier 53. With vacuum applied to a vacuum head 31, the head is reciprocated back and forth in rapid short strokes, starting at one end of the bar 23 and gradually progressing to the other end of the bar. As a result the lower end of each suction port 47, 49 and 51 is repeatedly moved into and out of proximity to the pigtails 9a and 11a which causes repetitive bending of the pigtails at points adjacent the stitch bonds 21. This is continued until the wires become sufficiently work hardened to break off after which they are sucked up and trapped in the head.
Patent GB-1501162-A (GB)
Title: Strip-seal containers and components thereof
IPC: B65D17/50
Filed: 1975-09-09
Abstract: 1501162 Container closure devices CONTINENTAL CAN CO Inc 9 Sept 1975 [18 Sept 1974] 37155/75 Heading B8D The end panel 6 of a can 2 containing a pressurized liquid has pouring openings 10, a straw-admitting vent 7, and an optional anchor opening 8, which are sealed by a flexible pull tab 14 comprising a plastics web 15<SP>1</SP> formed with rigid boss portions, such as 31, 32, which enter these openings when the tab 14 is secured to panel 6 by a peelable adhesive. The bosses resist the internal pressure of the can on tab 14, until the free end 45 is grasped and pulled. Web 15<SP>1</SP> is applied to a tape 15 of plastics or aluminium. Panel 6 may be of aluminium or coated steel. Tab 14 is attached to can 2 by a heated iron which softens web 15<SP>1</SP> to allow partial extrusion into the openings to form bosses 31, 32.
Patent GB-1157277-A (GB)
Title: Cyclopropylpiperazinoalkyl-Phenothiazines and process for preparing the same
Inventor: MILLS JACK
IPC: A61K31/00
Filed: 1966-08-22
Abstract: 1,157,277. Phenothiazine derivatives. ELI LILLY & CO. 22 Aug., 1966, No. 37558/66. Heading C2C. Novel phenothiazine derivatives of the general formula wherein R is hydrogen or methyl and R<SP>1</SP> is chloro, trifluoromethyl, methoxy or methylthio, and pharmaceutically acceptable acid addition salts thereof are prepared (a) by heating a phenothiazine derivative of the general formula wherein X is chlorine or bromine, with N-cyclopropyl-piperazine; (b) by reacting a phenothiazine having a chlorine atom or a trifluoromethyl, methoxy or methylthio group in the 2-position with a N-cyclopropyl-piperazine derivative of the general formula wherein X is chlorine or bromine; (c) by heating a 10 - [3 - (N,N - bis - 2 - chloroethyl) - amino - propyl or - 2 - methylpropyl] - phenothiazine having a chlorine atom or a trifluoromethyl, methoxy or methylthio group in the 2-position with cyclopropylamine; or (d) by reacting a phenothiazinyl-10-carbonyl chloride having a chlorine atom or a trifluoromethyl, methoxy or methylthio group in the 2-position with 3-(4- cyclopropylpiperazino) - 1 - propanol or - 2 - methyl - 1 - propanol and heating the carbamate thus formed, followed optionally by conversion of the product to a pharmaceutically acceptable acid addition salt thereof. Pharmaceutical compositions having tranquillizing and anti-emetic properties comprise as active ingredient a phenothiazine of the first general formula above or a pharmaceutically acceptable acid addition salt thereof and a pharmaceutical carrier. N-Cyclopropyl-piperazine derivatives of the general formula wherein R<SP>2</SP> is hydrogen or -CH 2 CHRCH 2 -X and X is chloro or hydroxy, are prepared (a) by hydrolysis of 1-cyclopropyl-4-p-toluenesulphonylpiperazine, obtained by reaction of N,N-bis-(#- chloroethyl) - p - toluenesulphonamide and cyclopropylamine, to yield N-cyclopropyl-piperazine; (b) by reaction of cyclopropylamine with ethylene oxide, conversion of the N,N-bis-(#- hydroxyethyl)-cyclopropylamine thus obtained to the corresponding #-chloroethyl derivative by reaction with a chlorinating agent, followed by cyclization of the N,N-bis-(#-chloroethyl)-cyclopropylamine with an amine of the formula R<SP>2</SP>NH 2 ; or (c) by chlorination of a N-cyclopropyl-piperazine derivative of the fourth general formula above wherein R<SP>2</SP> is -CH 2 - CHR-CH 2 OH to give the corresponding derivative wherein R is -CH 2 -CHR-CH 2 -Cl. 10-(3- Chloropropyl) - 2 - trifluoromethyl - phenothiazine is prepared by reacting 2-trifluoromethylphenothiazine with 1-chloro-3-bromo-propane. Reference has been directed by the Comptroller to Specification 833,473.
Patent GB-1073903-A (GB)
Title: Improvements in or relating to gas turbine installations
IPC: F02C6/02
Filed: 1964-09-16
Abstract: 1,073,903. Gas turbine plant. LICENTIA PATENTVERWALTUNGS, G.m.b.H. Sept. 16, 1964 [Sept. 18, 1963; June 16, 1964], No.37853/64. Heading F1G. A gas turbine installation comprises at least one gas turbine type gas generator arranged to discharge working fluid into the upstream end of an axial flow power turbine, an exhaust duct extending axially from the downstream end of the power turbine, and an output shaft of the power turbine extending from the upstream end thereof. As shown in Fig. 1, ten gas generators 9 are regularly distributed in cylindrical formation about the common axis 11 of an electric generator 1 and a power turbine 7. Exhaust gases from the power turbine are discharged through a duct 13. Alternatively, the axes of the gas generators may lie on a cone which tapers towards the power turbine. Short ducts may be provided between the gas discharge opening of each gas generator and the power turbine. The electric generator may lie partly within the space enclosed by the gas generators. The installation may, instead of driving an electric generator, be used for the drive of ships or aircraft or for driving a pump, compressor or fan. In the embodiment shown in Fig. 2, a single gas generator 21 has its longitudinal axis 41 inclined by a smaller angle than 45‹ to the common axis 39 of the power turbine 23 and electric generator 27. An air suction channel indicated at 49 may be provided. The gas generator extends further towards the power turbine than the electric generator, and the latter extends further away from the power turbine than the former. The axes of the gas generator and the power turbine need not be co-planar, the axes of the power turbine and the electric generator may be parallel but not co-linear, and the axes of the gas generator and the power turbine may be parallel rather than being inclined as shown.
Patent GB-1015047-A (GB)
Title: Improvements in or relating to apparatus for the fortuitous or random selection of numbers or other characters
IPC: G07C15/00
Filed: 1963-09-27
Abstract: 1,015,047. Chance apparatus. T. McDERMOTT. Sept. 25, 1964 [Sept. 27,1963], No. 38071/63. Heading A6H. Apparatus for use in producing random series of numbers or other characters, compreses a transparent-sided drum mounted for rotation about axis 4 and subdivided into transverse compartments each of which contains a dice. The operating handle 17, or an alternative weight, serves to bias the drum towards a constant rest position, and the selected series of characters is read from the upper surfaces of the dice through the top of the drum. Preferably the dice are decahedral and numbered, the numbers 6 and 9 being represented by S and N to avoid confusion.
Patent GB-829893-A (GB)
Title: Improvements in and relating to centrifugally operated electrical switches
IPC: H01H29/26
Filed: 1957-12-06
Abstract: 829,893. Mercury switches. FICHTEL & SACHS A.G. Dec. 6, 1957 [April 12, 1957], No. 38081/57. Class 38 (5). A centrifugally-operated switch comprises a housing having a substantially conical conductive base 4 and insulating upper part 5 mounted on a vertical shaft 3 journalled in a stationary two-part casing 1, 2. The part 5 carries a contact surface 6 connected to a slip ring 7 and thus to an insulated carbon brush 8. Mercury 10 bridges contact surface 6 and base 4, to which connection is made via shaft 3 and casing 1, 2. Under centrifugal force the mercury breaks the connection between 4 and 6, but to do this it has to pass through an annular gap 11 which introduces a hysteresis effect in that a higher angular speed is necessary to force the mercury outwards and a greater drop in angular speed is required to allow the mercury to return. In a modification (Fig. 4, not shown), the contact surface on part 5 is near its periphery such that the mercury establishes a circuit at higher angular speeds and breaks it at standstill or low speeds. Alternatively the part 5 may carry the two contact surfaces and two slip-rings and brushes are provided. If desired, time lag due to frictional slip between the mercury and its housing 4, 5 may be reduced by making scoop shaped or stellate irregularities in the surface of part 5 (for example, as in Fig. 5, not shown). The housing 4, 5 may be evacuated or filled with inert gas.
Patent GB-619837-A (GB)
Title: Improvements in dynamo electric machines
IPC: H02K21/36
Filed: 1946-12-31
Abstract: 619,837. Permanent magnet machines. MANDL, A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 31, 1946, No. 38140. [Class 35] In a permanent magnet homopolar A.C. machine, the field members at each end of the permanent magnet have members providing a flux leakage path across an air-gap in parallel with the working flux circuit, and means are provided for closing this air-gap, the permanent magnet being magnetized in situ by means of a magnetizing winding. In the generator shown, the magnet 10, which may be of cylindrical form, or may be built up of a series of parallel bar-magnets, is located between yoke members 4, 7 which carry the flux to the rotor 1 and also through extending parts 8. 9, having flanges 13, 14, across the leakage air-gap 15. The rotor 1 comprises a toothed portion 2 co-operating with a laminated stator core 5 having output windings 6. The flux return path is by means of a small annular air-gap between an enlarged cylindrical flange 3 and the inner surface of the member 7. The magnetizing winding 16 is located concentrically round the magnet and before use the gap 15'is bridged by a magnetic ring. After magnetizing, this ring is replaced by a non-magnetic cover 24, so that the flux falls to a steady value, and the rotor placed in position. By this arrangement, removal of the rotor does not disturb the flux of the machine. A damping ring may be placed concentrically within the magnet. In a modification, the cylindrical air gap 3, 7 may be replaced by a further laminated stator core and corresponding rotor teeth, and the leakage gap may be closeable by adjustable means such as a screwed sleeve which may be used for automatic regulation of the machine output. The machine may alternatively have a permanent magnet rotor.
Patent GB-367495-A (GB)
Title: Automatic bobbin-winder, particularly for use with spinning machines for artificial filaments
IPC: B65H54/32
Filed: 1930-12-18
Abstract: 367,495. Bobbin-winding apparatus particularly for use in spinning artificial filaments. PARCOFIL AKT.-GES., 20, Peterstrasse, Zurich, Switzerland.-(Assignees of Ruka Ges. f³r Patentverwertung; 10, Neumuhlequai, Zurich, Switzerland.) Dec. 18, 1930, No. 38215. Convention date, Dec. 19, 1929. [Class 120 (ii).] In bobbin-winding apparatus for winding at a constant winding-speed and with a variable traverse, particularly for use with spinning- machines for artificial filaments, ratchet mechanism operated from the traverse cam shaft effects an adjustment of the length of the traverse and of the speed of the winding-spindle in accordance with the growth of the bobbin, and also effects the rotation of the bobbin carrier to bring a fresh bobbin into the winding- position when one is fully wound, the traverse guide and the spindle drive being at the same time returned to their initial positions. The traverse may be increased or reduced during winding so as to wind bobbins with internally or externally coned ends. The spindle-driving shaft 1 is driven through friction discs 2, 3 from a shaft 4 and drives a shaft 7 carrying a swash plate 8, a member 9, mounted on a shaft 10 and connected to a rod 91 slidably mounted in the shaft and carrying a guide 21, engaging the swash plate. The shaft 10 is slowly rotated by adjustable ratchet and worm gearing 31, 32 actuated from the shaft 7, so as to adjust the position of the member 9 relative to the swash plate to vary the traverse, the friction disc 3 being simultaneously moved by crank mechanism 16 on the shaft 10 to vary the speed of the spindle-driving shaft 1. A cam 56, Fig. 4, on the shaft 33 of the worm 32 is arranged so that, when a bobbin is fully wound, it raises a rod 57 and thereby releases a pawl 52 on a plate 50 which thereupon engages a ratchet wheel 51 on a shaft 46 driven from the shaft 7. The shaft 43 is thereby driven through the plate 50 and gears 47, 44 and the bobbincarrying plate 75 rotated to remove the full bobbin and bring an empty bobbin into gear with the wheel 70 on the shaft 1. A cam 63 on the shaft 43 releases a retaining pin 74 on the carrier, and, at the same time, moves a lever 65 which disconnects a clutch 69 on the shaft 10, so that springs 12, previously stressed during its movement, restore the shaft 10 to its original position thereby resetting the traverse and the spindle-driving gear. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an arrangement of pinions and quadrants adapted to block themselves after half a turn as an alternative to the pawl and. plate mechanism described above for controlling the rotation of the bobbin-carrying plate. This subject-matter does not appear in the Specification as accepted.