baber/WOPTO huggingface dataset:
Patent GB-222440-A (GB)
Title: Improvements in portable power driven drilling and like machines
IPC: B23B45/02
Filed: 1924-06-20
Abstract: 222,440. Krupp Akt.-Ges., F. Sept. 26, 1923, [Convention date]. Drilling machines. - In a portable powerdriven drilling or like machine having a casing containing a rotary power element and a handle attached to the casing, the handle is yieldingly secured to the casing so that, on the tool encountering excessive resistance, relative motion between the two will ensue and the drive will be stopped. As applied to an electric drilling-machine the casing A, having a back centre a<1>, carries a rigid handle a<2> and a pivoted handle B, the latter being provided with a contact-piece b<3> which is engaged with a contact a<4> on the casing by a spring C. If the tool meets undue resistance the casing rotates relaytively to the handle B and breaks the circuit to the motor D, whereupon a spring pawl E secures the handle in the cut-out position. Specifications 13011/05 and 26750/05 are referred to.
Patent GB-1090270-A (GB)
Title: Balustrades
IPC: E04F11/18
Filed: 1965-04-08
Abstract: 1,090,270. Balustrades. FUCHS G.m.b.H. April 8, 1965 [April 10, 1964], No. 14975/65. Heading E1B. A balustrade comprises an upper channelsection stringer 4, optionally a lower invertedchannel stringer, Fig. 2 (not shown), and hollow rectangular balusters 1 connected to the stringers by self-tapping screws 16 or rivets passing through holes in the webs of the channels into internal recesses 3 in the balusters. A capping, Fig. 6 (not shown) is sprung over the channel 4 to form a hand rail, and a further capping may be sprung over the lower inverted channel. Where the balustrade is inclined a short section 12 of baluster is inserted within the channel 4 under the heads of the screws &c. 16. In modification each baluster, Fig. 4 (not shown), has along its length a flanged opening into its interior. In a modification in which the lower stringer may be omitted each main baluster, Fig. 5 (not shown), is of square external section and circular internal section and receives a reinforcing tube cemented into the floor.
Patent GB-168167-A (GB)
Title: Improvements in machines for making hollow glass articles
IPC: C03B9/22
Filed: 1920-06-03
Abstract: 168,167. Dowdall, C. J. June 3, 1920. Gathering molten metal; blowing.-Relates to glass bottle and like blowing-machines of the type in which the parison moulds are mounted upon a continuously-rotating frame and are filled by suction from a tank of molten glass. Fig. 1 is a diagram of the machine. According to the invention, the blowing-moulds 9 are mounted on a uniformly rotating frame 3, and the parison moulds 31 are carried by swinging arms 28 pivoted at 27 to the frame 3. At station I the finished ware is dishcarged. As the parison mould moves to station II it is swung forward and at station III it is swung back so as to dwell in the furnace opening during gathering At station V the parison mould is opened and the suspended parison enclosed in the corresponding blowing mould. Each arm 28 is splined on a spindle 27, Figs. 2 and 3, a pinion 25 on which engages a toothed sector 62, Fig. 3, having a spring arm 64 which bears a roller 65 engaging a cam-groove 66 so shaped as to swing the arm 28 in the required manner. The arm 28 may be adjusted vertically on the spindle 27 by a nut 57 to accommodate parison moulds of different heights. The ring mould and parison mould are operated by cam-grooves 39, 44 in a plate 40 which is mounted on the spindle 27 which does not, however, swing with the arm 28. The plunger 34 and knife 35 are operated by cams formed on a frame 48. The bottom of the spindle 27 rests on a cam 60, which lowers the parison mould for gathering. A quadruple ring mould 84, Fig. 4, is employed to avoid overheating. Both halves 84 are turned through 90‹ by ratchet mechanism each time the ring mould is opened so as to bring a fresh pair of mould cavities into operation. Vacuum for gathering and compressed air for blowing are conveyed through pipes 68, 70 from a central valve arrangement 71.
Patent GB-1341743-A (GB)
Title: System for defining partially enclosed activity zones
IPC: E04B1/348
Filed: 1971-05-14
Abstract: 1341743 Prefabricated room units AVERY COONLEY SCHOOL Inc 14 May 1971 [20 May 1970] 15123/71 Heading E1A A prefabricated room unit 10 made of wood, metal or plastics and preferably in the form of a truncated octahedron or other regular polyhedron is adapted to be connected to a series of like units in various vertical or horizontal alignments to provide a composite building structure. Each unit preferably constitutes a study for one or two students and is provided with furniture and equipment to that and for details of which the Specification and Fig. 3 (not shown), should be referred to. The units are interconnected by suitable brackets 16 or by means of clamps, adhesive or heat sealing techniques. Again, a frame may be provided to receive the units in a desired, variable arrangement.
Patent GB-701967-A (GB)
Title: Improvements in or relating to yarn-cutting arrangements in automatic looms
Inventor: JEFFERSON SIDNEY
IPC: D03D45/50
Filed: 1950-06-16
Abstract: 701,967. Cutting weft in automatic looms. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 18, 1951 [June 16, 1950; Jan. 30, 1951]. Nos. 15163/50, 2370/51. Class 142(2) A device for severing the weft yarn extending from an expended pirn which is to be replaced in the shuttle by a full one comprises a notched member 1 adapted to be actuated by the sley, shuttle box or shuttle and slide between a cutter 2 and a clamp 8 so that the yarn caught in the notch 4 is severed and held. To prevent immediate release of the yarn after severance and upon return of the sley, the member 1 has a piston portion 10 slidable in a cylinder 9 against a spring 11 and when actuated forces air from the cylinder out of a non-return valve 12, the return movement being controlled by an air inlet in the side of the cylinder S. Further movement of the member 1 is permitted, after severing and clamping a yarn, by mounting the cylinder 9 in a body portion 13 and causing it to act against a spring 14 but which is of sufficient strength to prevent relative movement of the cylinder and body portion until the clamping and severing action is complete. An alternative mounting for the cylinder comprises links 69, 610, pivotally secured to the cylinder and a fixed member of the loom, and a coil spring 615 connected to the link 69 and a pillar 617 so as to act as a strut during the initial movement of the device. Further movement overcomes the strut action and causes the spring to bend and permit movement of the cylinder. In the arrangement the notched member may be freely slidably mounted in the cylinder but having a piston arrangement which controls the member on its return movement only by permitting only a gradual air flow past it and a slow return of the member under its own inertia. In another arrangement, the spring acts as an over centre lever to hold the device in a fully advanced or retracted position and in this case a lever mechanism for returning the device to its operative position is provided. To facilitate engagement of the yarn by the notched member the shuttle may be recessed and lined with a strip of material engaged by the yarn to prevent formation of a slack loop in the shuttle eye.
Patent GB-152071-A (GB)
Abstract: 152,071. Corber, F. H. June 28, 1919 Road-traffic signals on vehicles. - A stopping and turning signal for yehicles of the type in which a semaphore arm normally hangs vertically concealed in a casing and is raised when required to project in a horizontal position, comprises an arm A of pressed metal, pivoted at a, and normally hanging partly within a slot or recess in, and partly in a casing c attached to, the car body. A handle B by which the arm is raised or lowered projects through a slot in the car body. A rectangular casing D is detachably secured to the upper part of the arm A by a keyhole-slot and stud connexion. not shown, and contains a lamp d which serves to illuminate the arm A and may also show a red light to the rear through windows e. The arm may bear an inscription. Contacts carried by the arm are arranged to co-operate with fixed contacts so that the lamp circuit is only closed when the arm is raised, and similar contacts may be arranged to close the circuit of a horn, &c., giving audible warning.
Patent GB-736492-A (GB)
Title: Improvements in or relating to grid modulated radio transmitters
Inventor: COOPER VICTOR JAMES
IPC: H03C1/06
Filed: 1951-06-27
Abstract: 736,492. Automatic voltage control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 11, 1952 [June 27, 1951], No. 15278/51. Addition to 695,416. Class 38 (4). [Also in Group XL (c)] The drive applied to a variable impedance load from a radio frequency source is maintained constant by rectification to produce a control voltage which is utilized to vary the drive in such a manner as to oppose change in output level. In a transmitter comprising a grid modulated stage 13 driven with R.F. via cascaded stages 3, 7, the stage 7 being a cathode-follower and 5, 10, 14 representing tuned circuits, the voltage across the tuned circuit 10 is rectified by a rectifier 15. The rectified voltage, after optional amplification in an amplifier 16 is applied to the grid of a control valve 18 which, together with a resistance 6 forms a potentiometer supplying H.T. to the amplifier 3. In this way the gain of the stage 3 is varied in such a manner as to maintain the R.F. potential across the circuit 10 constant. Control may alternatively be applied to the grid or cathode of the valve 3, or if this comprises a screen-grid valve, to the screen.
Patent GB-186658-A (GB)
Title: Improved electrical means for transmitting and reproducing sound
IPC: H04B11/00
Filed: 1921-06-02
Abstract: 186,658. Sykes, A. F. June 2, 1921. Addition to 160,223. Magnetic instruments.-The electromagnetic transmitter or receiver described in the parent Specification is modified by the use, as the sound receiving or reproducing surface, of a solenoidal coil with one or more yielding faces, or of a conducting sheet, in a powerful magnetic field. Fig. I shows a flat solenoid 102 in the field of an electromagnet 10, the wire being wound on insulated rods 103, and the back of the solenoid being prevented from vibrating by a rubber pad 104. Fig. IV shows a solenoid with four yielding faces. A wooden shield 31 surrounds the poles, and a sound-duct 105 may be provided to allow the apparatus to work by pressure instead of by impulses. Fig. VI shows a sound-box having a copper sheet 102, which may be corrugated and provided with saw-cuts to divert the current to the active part of the surface, in series with the secondary 85 of a transformer and a perforated extension 109.
Patent GB-368152-A (GB)
Title: Improvements in or relating to thermionic valve circuit arrangements
IPC: H04B15/00
Filed: 1931-05-23
Abstract: 368,152. Valve circuits. ALL G E - MEINE ELEKTRICITATS-GES., 2, Friedrich Karl-Ufer, Berlin. May 23, 1931, No. 15310. Convention date, May 26, 1930. [Class 40 (v).] Disturbing voltages due to alternating or pulsating filament heating current in equipotential cathode valves are compensated by providing separate and independently adjustable means for earthing the electric centre of the heater circuit and for adjusting the compensating voltages applied to the grid. The Figure shows an arrangement in which disturbing voltages due to ohmic leakage are compensated by variable resistances 15, 16 shunted across the heater leads of an indirectly heated valve 2, the mid-point of the resistances being connected to the grid circuit. Hum due to stray capacity couplings between heating and grid circuits is eliminated by a potentiometer 12, across the heating circuit, the slider being earthed. The resistances 15, 16 may each be shunted by a variable condenser, (Fig. 1, not shown) ; the potentiometer 12 may be used to balance out hum due to leakage, that due to capacity being compensated by two variable condensers replacing the resistances 15, 16, Fig. 2, (not shown).
Patent GB-857639-A (GB)
Title: Improvements in or relating to furniture
IPC: F16B12/52
Filed: 1959-05-05
Abstract: 857,639. Furniture joints. COLLIN, R. C. May 5, 1959, No. 15366/59. Class 52(2) The base plate 1 of an article of furniture is formed with a plurality of depression 5 each having a struck-up tapped socket 6, Fig. 2, receiving a bolt 7 carried by leg 4. Alternatively, Fig. 3, a hole is drilled in depression 5 and a nut 8 is welded in alignment therewith to receive the bolt 7. Plate 1 may be the cushion supporting surface (circular or rectangular) of a stool or may be a plate to which is secured a table top. Instead of the plate being of disc form it may be an annular or rectangular frame spanned by cushion-supporting members which may be resilient. The frame being of angle formation. The cushion may be spaced above the plate to provide a storage space accessible by lifting the cushion, the space having adjustable partitions.
Patent GB-430604-A (GB)
Title: Apparatus for luring and killing or rendering innocuous mosquitos, malarial mosquitos, or like insects
IPC: A01M1/20
Filed: 1934-05-23
Abstract: 430,604. Insect traps. CARP, J. R., 111, De Lairessestraat, Amsterdam. May 23, 1934, No. 15434. Convention date, May 23, 1933. [Class 5 (i)] A device for killing insects or rendering them innocuous comprises a source of supersonic oscillations serving as a lure and two or more apertured or perforated electrodes. Current, stepped up by a transformer 1 and rectified by a valve, is supplied to grids 3, 4 and to an electro-magnet 6, a current limiting condenser 5 being provided in the magnet circuit. The grid 3 is earthed and surrounds the grid 4: the grids may take the form of interconnected flat screens mounted on a holder 9, Fig. 2, or they may be mounted in the form of a floor lamp, Fig. 3. In the latter case, the transformer 1, condenser 5 and magnet 6 are mounted in the lamp base, which also comprises a dished recess 22 to contain an insect destroying composition and a perforated tube 7 containing a stretched string vibrated by the magnet and preferably adjustable by means of a screw 14 to vibrate in a high harmonic of its natural frequency. The valve is mounted in the holder 16 and acts as a luminous attractant. A glass bell 21, Fig. 3, or the holder 9, Fig. 2 is provided with an auxiliary lure, such as a blood preparation. The Specification as open to inspection under Sect. 91 comprises also a modification, Fig. 4 (Cancelled), in which two sets of grids of the form shown in Fig. 2 are suspended at 27 between two vibrating strings, adjusted by means of screw 26, arms 25 and springs 24. Also, heating means may be provided as an additional lure and the apparatus may be energized by a high tension battery, the magnet being provided with a make-and. break device. This subject-matter does not appear in the Specification as accepted.
Patent GB-651000-A (GB)
Title: Improvements in or relating to devices for mixing fluids
IPC: G05D11/00
Filed: 1948-10-01
Abstract: 651,000. Making foam. JEFFREE, J. H. Oct. 1, 1948, No. 15532. [Class 47 (ii)] [Also in Group II] Two fluids which may be water and a foaming agent are mixed in predetermined proportions by producing in a pipe a moving stream of one of the fluids, periodically interrupting the stream by breaking it into two columns, blocking the following column, allowing the leading column to continue under its own inertia to produce a suction effect in the closed space formed in the pipe between the two columns and using the suction effect to draw a second fluid into the pipe for admixture with the first fluid. In one embodiment, Fig. 6, a fluid A flowing from an inlet pipe 20 to an outlet pipe 21 passes through an interrupter chamber 43 and through diametrically opposed holes 48 into a tube 47 which delivers the fluid into a mixing chamber 25. The chamber 43 contains a waterwheel 24, suspended from a vertically adjustable screw 52 for rotation by the incoming fluid A, the water-wheel having a sleeve 45 which surrounds the upper closed end of the tube 47 and which carries diametrically opposed lugs 46 which during rotation of the wheel 25, interrupt the flow of fluid through the holes 48. The inertia of each separate column of fluid so formed flowing through the outlet pipe 21, produces suction in the mixing chamber 25 to open a valve 23 and draw in the fluid B from a container 42. To control the proportions of the two fluids the duration of each interruption is adjusted by the screw 52, by which means the tapered lugs 46 may be vertically displaced in relation to the holes 48. In other embodiments, as in Fig. 8, not shown, the interrupter comprises a rotatable conical valve driven by the fhud A or as in Fig. 5, not shown, the interrupter may be a reciprocating valve driven from an external source of energy which may be under the control of a chemical recorder measuring the chemical properties of the mixed fluids. The proportions of the fluids may also be controlled by a chamber 76, Fig. 11, which is filled with fluid B through a constricted inlet 77 in the periods between successive interruptions of the main stream and from which fluid is withdrawn by the vacuum created in the mixing chamber 25, in quantities depending upon the movement of a flexibly mounted diaphragm 78 between limits provided by an abutment shoulder 83 and an adjustable screw 81. In a similar embodiment, Fig. 12, not shown, the diaphragm 78 is replaced by an expansion bellows.
Patent GB-556574-A (GB)
Title: Improvements relating to sextants and like angle-measuring instruments
IPC: G01C1/08
Filed: 1942-03-27
Abstract: 556,574. Sextants &c. LINK AVIATION DEVICES, Inc. March 27, 1942, No. 15554/43. Convention date, April 5, 1941. Divided out of 556,573. [Class 97 (ii)] The housing of a sextant or like angle-measuring instrument is formed with a compartment conforming to the shape of a self-contained lamp unit which is retained therein in correct operative position for use but may be easily withdrawn. The lamp unit l may comprise a dry cell battery, a combined rheostat and switch control e and an electric lamp g. The unit is frictionally held within a compartment c and may be further secured by light leaf springs. Additional compartments are provided to receive a removable image-reflecting unit r and a bubble unit b. The image-reflecting unit is of tubular form with its mirror k arranged to reflect light from the bubble unit axially through a lens n to an eye cup u. Specification 556,573 is referred to.
Patent GB-936123-A (GB)
Title: Improvements in or relating to selective electrical switching devices
Inventor: ADAMS RONALD GEORGE LOXHAM
IPC: H01H19/00
Filed: 1960-05-03
Abstract: 936,123. Mechanical switches, without quick action. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. April 17, 1961 [May 3, 1960], No. 15641/60. Class 38 (5). In a manually operable selector switch having a plurality of contact carrying selectors mounted for independent rotation on a common shaft, each moving contact can engage all of a plurality of fixed contacts. As shown, each selector comprises a plastics drum 18, with a central boss 21, divided into two compartments by ribs 23, 24. The upper compartment houses a spring 16 on which is seated a moving contact 27 which is integral with a bifurcated collector 30, 31 and projects through slot 20 in the drum. The collector engages a circular contact 32 which is secured by lugs 33, 35 to an insulating wafer 37 of phenol board. Four such selectors are mounted on a common shaft with an extra wafer at one end. The wafers are fixed relatively to the drums and have equally spaced contact rods 44 passing through them. The right-hand ends of the rods, as seen in Fig. 2, are bent and arranged relatively to the wafer as seen in Fig. 2A, so that the rods have limited axial and angular freedom and the portions 45, 46 form solder tags. Each moving contact has a V notch which locates each rod and provides two contact points.
Patent GB-563616-A (GB)
Title: Improvements in or relating to aluminium base alloys
IPC: C22C21/02
Filed: 1941-12-04
Abstract: 563,616. Alloys. FAIRWEATHER, H. G. C. (National Smelting Co.). Dec. 4, 1941, No. 15669. [Class 82 (i)] Aluminium alloys suitable for making castings such as pistons and other parts of internalcombustion engines contain 20-30 per cent of silicon, 0.2-3 per cent of magnesium, 1-5 per cent of copper, 0.3-2 per cent of manganese, and 0.4-2.5 per cent of iron, with, if desired, up to a total of 0.5 per cent of one or more grain refiners, such as boron or titanium.
Patent GB-129348-A (GB)
Title: Improvements relating to Electrical Regulating Apparatus.
IPC: G05F1/00
Filed: 1917-10-27
Abstract: 129,348. Davies, B., Judd, W., and Eastern Telegraph Co. Oct. 27, 1917. Transmitting-mechanism.-An electric regulating-apparatus for maintaining constant any factor subject to variation, such as the voltage of a dynamo, the speed of an engine, &c., comprises a continuously vibrating contactor C, which alternately completes circuits through two electrically separated stops or surfaces T, T'. This energizes intermittently the coils 10, 11 of a relay, whose contact 12 alternately closes the circuits of a heavy relay 17. The contactor is mounted between the poles of a magnet and carries three coils 1, 2, 3; the last is shown separate from the contactor. An oscillation circuit supplied from the mains and comprising an inductance L, condenser D and resistance 8, 9 maintains uniform vibration of the contactor by its action on the coil 3. The coil 2 is connected through an adjustable resistance R' to a standard battery and forms an opposing couple to the turning movement of the coil 1. The coils 1, 2 are adjusted by the resistance &c. to balance each other when conditions are normal, any deviation from this condition resulting in the contactor remaining relatively longer on the surface T or T'. The coil 2 may be replaced by a spring. The dividing line between the surfaces T, T' may be inclined to the plane through the conductor, when in mid-position, and the surfaces may be adjustable. As applied to the regulation of speed of an engine, a tachometer moves over a rheostat in a circuit containing a battery and the coil 1; the variation of resistance in this circuit alters the energizing of the coil, and as a result the contactor remains over one of the surfaces T or T<1> longer than over the other; this causes movement of the relay 17, which adjusts the throttle &c. valve through an electro-magnet.
Patent GB-1341359-A (GB)
Title: Friction coupling device
IPC: F16D65/22
Filed: 1972-04-05
Abstract: 1341359 Friction clutches; fluid pressure brakes; ratchet gearing CHARBONNAGES DI FRANCE 5 April 1972 [6 April 1971] 15712/72 Headings F2C F2F and F2Q A friction clutch or brake (clutch only shown comprises a deformable friction element 10 between driving and driven member 1, 3, one of which has recesses 4 which receive projec tions on the element 10 and are connected to pressure liquid supply ducts 6. The deformable element 10 may, as shown, be a radially con tractable tube between radially spaced driving and driven elements or may be a disc Figs. 3 and 4 (not shown), between axially spaced driving and driven discs. In Fig. 5 (not shown), two clutches similar to that shown in Fig. 1, an arranged between oscillatory driving drums and a driven hub, the clutches being alternately engaged to produce continuous rotary motion o the driven hub. The friction surfaces may be roughened, e.g. by knurling.