baber/WOPTO huggingface dataset:
Patent GB-315769-A (GB)
Title: Improvements in the manufacture and production of fluorine
IPC: C25B1/24
Filed: 1929-07-17
Abstract: 315,769. Fredenhagen, K. July 17, 1928, [Convention date]. Fluorine, obtaining.-Fluorine is obtained by electrolysis of fused potassium or other alkali metal bifluoride which has been rigorously dried, preferably by passing a current of dry air or other inert gas over the powdered salt at a high temperature below the melting point. The dryness is tested by occasionally heating the salt to decomposition and condensing the hydrogen fluoride which is given off; the specific conductivity of the condensate at 0‹ C. should be less than 0.02 reciprocal ohms. The drying operation may be carried out in the electrolysis vessel, which should be kept airtight to prevent entry of water vapour, or in a separate vessel connected with the electrolysis vessel. As electrolysis proceeds the electrolyte is regenerated by the addition of hydrogen fluoride containing such an extremely small quantity of water that the condensate has the value stated above. A copper cathode and a graphite anode and a metallic diaphragm may be employed. The voltage may be less than 10 and the current density 0.3 amps. per sq. cm.
Patent GB-332404-A (GB)
Title: Improvements in automatic stops or brakes for gramophones or the like
IPC: G11B17/02
Filed: 1929-07-17
Abstract: 332,404. Decca Gramophone Co., Ltd., and Cozens, G. A. July 17, 1929. Brakes, arrangement and disposition of.- Relates to automatic stop or brake mechanisms for gramophones, of the kind wherein a spring- operated brake, controlled by a latch, is adapted to be applied when the tone-arm reaches the end of its inward travel or other predetermined position, and to be removed when the tone-arm is moved out to its starting position, and wherein the tone - arm co - operates with a lever which moves the brake to the off position. According to the invention the connection between the said lever and the tone-arm permits the two to move together within the normal range of operative movement, but, when the tone-arm is moved beyond this range, such as to its housing position, relative movement between them is permitted. As applied to brake mechanism such as is described in Specification 327,517, the operating lever 9 is pivoted at 10 to a quadrant 1 fixed to the tone-arm 2. The quadrant 1 has downturned lugs 6, 7 at its ends and a notch adjacent one end, the notch receiving a tooth 12 on a spring 11 fixed to the lever 9, so that the latter will move with the tone arm. The lever 9 has a projecting pin 13 which engages at the proper time to trip a lever to put the brake on, and which engages a lever 14 to disengage the brake when the tonearm is moved to its starting position. If the tone-arm is moved beyond its normal range, the tooth 12 on the spring 11 slips out of the notch, so that relative movement occurs between the quadrant 1 and the lever 9. If the tone-arm is now moved to slightly beyond its normal starting position, the tooth 12 will snap into the notch to hold the parts in the normal position again. In a modification, the lever 9, Fig. 5, has an annular boss 14 embracing the upright portion of the tonearm 2, or a flanged sleeve 15 fixed to the tonearm. The boss 14 has a pin 16 which is pressed by a spring 17 into a hole 18 in the tone-arm or sleeve 15 when the lever 9 and the tone-arm are in their normal relative positions. When an abnormal movement of the tone-arm occurs, the pin 16 slips out of the hole 18 to permit relative movement.
Patent GB-1510062-A (GB)
Title: Ink transfer member
IPC: B41J31/00
Filed: 1976-05-27
Abstract: 1510062 Carbon papers BURROUGHS CORP 27 May 1976 [30 June 1975] 22007/76 Heading D2B A carbon paper of the type in which a liquid ink is suspended within the pores of a plastisol matrix is characterised in that the vehicle for the ink comprises a liquid polyglycol having a M.W. of 1000-5000, a viscosity of 70-77 centistokes at 77‹F, a water solubility not exceeding 3g. per 100g. of water at 25‹C, a negligible water-absorption and a negligible vapour pressure at the fusion temperature of the plastisol.
Patent GB-335000-A (GB)
Title: Improvements in prepayment mechanism for gas-meters
IPC: G07F15/08
Filed: 1929-07-18
Abstract: 335,000. Kirkewhite Engineering Co., Ltd., and Goldspink, G. E. July 18, 1929. Gas, supplying by meter; coin action, mechanical-connection and multiple-coin.-In prepayment mechanism for gas meters of the kind having means for adapting it to work with coins of different sizes and values, the introduction of a price-changing disc with guard plate and coin pocket to suit the coin to be used effects also the necessary gear change in the valve controlling mechanism. The gas valve lever T, Fig. 1, is connected by a link T<1> to a lever V which is moved against the action of a spring V<2> to close the valve by a plate W mounted on a screwed sleeve E engaging a screw A. Rotation of the screw A by means of a coin engaging a quantity wheel B opens the valve and rotation of the sleeve, through either a worm J or J<1> engaging a worm wheel D splined on the sleeve, opens it. The worms J, J<1> form a. two-speed gear for use with pennies or shillings, and the wheel D is moved into engagement with one or the other by a pin C<1> carried bv a rod C passing through the screw A and projecting through the wheel B into the axle F of the guard plate G that carries the rotary coin pocket L. The rod C is held in its proper position against the action of a spring K by the axle F when the pricecharge disc M, with guard plate and coin pocket. is changed to suit the coin to be used, the recess in the axle being of varying lengths. The pawl R, Fig. 2, that prevents backward rotation of the wheel B, has a stud R<1> passing through a slot in the coin mechanism casing N and is actuated by a coiled spring S. When the maximum number of coins are inserted a part W<3> on the valve actuating plate W engages the stud R<1> and locks the wheel B.
Patent GB-641871-A (GB)
Title: Improvements relating to door fasteners
IPC: E05B65/20
Filed: 1948-08-20
Abstract: 641,871. Door latches. WILMOT-BREEDEN, Ltd., and SPICER, H. J. Aug. 20, 1948, No. 22047. [Class 44] A door latch having a spring-loaded bolt or rotating latch has a lever operable at the free edge of the door adapted to prevent actuation of the inside handle. In the form of Fig. 1, the bolt a is retractable by a lever c engaged by the outside handle follower e and the inside handle follower f. An extension i on the follower f carries a stud j engaged in a notch m in the lever k. The lever k is retained in the locking or unlocking positions by an over-centre spring n and operable by a coin or other tool engaged in a notch o in a part projecting from the edge of the door. The follower f may be turned in the reverse direction to engage the projection q in a notch p to lock the latch. In another form. Fig. 2, having a swinging latch u adapted to cooperate with a peg v and to be released by a lever w on the inside handle spindle, the lever z is adapted to engage against a shoulder y to prevent operation of the inside handle. A projecting part 3 has a notch 4 for operation of the lever z.
Patent GB-1218836-A (GB)
Title: Self-locking threaded fastener and method of manufacturing such fastener
IPC: B21K1/44
Filed: 1968-05-10
Abstract: 1,218,836. Making dies and bolts. STANDARD PRESSED STEEL CO. 10 May, 1968 [29 May, 1967], No. 22171/68. Heading B3A. [Also in Division F2] A self-locking threaded fastener comprises an elongated member 10 with a threaded portion 14 of generally circular cross-section adapted to be driven rotatably into a threaded hole in a second member, the threaded portion 14 having a segment whose cross-section is oblate in shape and whose construction is such that it will be compressed and elastically deformed in a manner tending to change the oblate cross-section towards a circular cross-section when said threaded fastener is driven into the threaded hole. In the embodiment described an axially extending hole 20 is provided from one end of the bolt extending to include the oblate portion so as to facilitate the deformation of the bolt. Dies for forming the oblate position are described, Fig. 6 (not shown).
Patent GB-655400-A (GB)
Title: Improvements in or relating to high-frequency induction heating apparatus
IPC: H05B6/36
Filed: 1947-08-11
Abstract: 655,400. Induction heating. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 11, 1947, No. 22225. Convention date, March 25, [Class 39 (iii)] Two or more pairs of metal members closely surround two or. more parts of a workpiece, and the members of each pair are electrically insulated from one another and pass high frequency current in opposite directions. The pairs of members may be separated from one another without interruption of the electrical supply circuit. In the embodiment shown in Figs. 5 and 6 the upper members 58, 59, interconnected by strips 60, 61 form a, closed circuit, the current therein being induced by the passage of high frequency current through the lower members 53, 54 via connecting strips 55, 56. The parts 69, 70, which include pairs of members 74, 75, Fig. 2 and 3, and which may be separated by mica strips, are used to solder together tubular parts 64, 65, 66, of a bicycle frame. Members 74, 75 surround the frame at the required points and are integral with semi-cylindrical shells 71 each forming transformer secondary windings; the currents in each part 69, 70 flow in opposite directions.
Patent GB-959726-A (GB)
Title: Hydraulic system for starting internal combustion engines
IPC: F02N7/06
Filed: 1962-06-08
Abstract: 959,726. Reciprocating motors and pumps; turning gear. NEW YORK AIR BRAKE CO. June 8, 1962 [June 23, 1961], No. 22230/62. Headings F1A and F1K. [Also in Division G3] A variable-output, swash-plate pump or motor unit, Fig. 1, is operable as a motor for starting an I.C. engine and as a pump by the engine when started. For starting the I.C. engine, a valve 44, Fig. 2, is opened to connect a constant pressure source 41 to a pressure-responsive valve 52 and to motor inlet 8, the capacity of source 41 being less than the flow requirements of the motor when the engine has started. The pressure moves valve 52 to the right against spring 60 to connect swash-plate tilting motor 26 to pressure to tilt the swash-plate to its motoring position. When the I.C. engine starts, the motor demand exceeds the supply, causing a pressure drop which permits a spring 19 to return the swash-plate to its zero stroke position. When pumping operation is required, valve 44 is closed and fluid system valve 112 opened. The pressure demand of the system causes a pressure fall at valve 52, permitting its movement to the left by spring 60 to connect tilting motor 26 to exhaust so that spring 19 moves the swashplate to its pumping position. The pump output pressure is maintained constant by valve 52 controlling tilting motor 26. For a higher output pressure, the loading of spring 60 is increased by moving spring seat 59 to abut a stop 65, seat 59 being moved by pressure supplied via solenoid-actuated valve 73. During engine operation, movement of the swash-plate to its motoring position is prevented by a stop 34a controlled by a solenoid-actuated valve 91. Specification 873,517 is referred to.
Patent GB-904729-A (GB)
Title: Improvements relating to spring unit lacing machines
Inventor: HULME JOHN HENRY
IPC: B21F33/04
Filed: 1960-06-25
Abstract: 904,729. Assembling upholstery springs. VONO Ltd. June 21, 1961 [June 25, 1960], No. 22330/60. Class 83 (4). [Also in Group XIV] In a machine of the type described in Specifications 653,021 and 859,163, for lacing together parallel rows of springs 16, 17 and 17, 18 by a helical wire 19 the end 20 of the helix is bent around the end coil of the end spring 17 in the row of springs next to leave the jaw assemblies 14, 15 which hold the spring while the helix 19 is threaded. An anvil member 41 is fixed to the assembly carrying the rear jaw 15 so that when the spring 17 is in position on the jaw the end 20 of the helix is located on the anvil face 43. The end 20 is bent around the coil 17 by the reciprocating bending tool 24 which slides in a sleeve 25 mounted on the fixed bar 23 by means of the L-shaped bracket 26, 27 and nut 29. The working end of tool 24 is suitably shaped and the other end carries a disc 35, between which and the sleeve 25 is a compression spring 36, and a ball 37 seated in a recess, the edges of which have been peened over. The tool is actuated by a cam surface 40, engaging ball 37, formed in the cam block 39 secured to presser bar 38 and thus bends the end 20 when the next helix is just about to be threaded. Similar tools are provided at each end of the helix and for both the helices located on the top and bottom coils of the springs. The tools may have a cutting edge to cut the helix ends to standard length. Coils 16, 17, 18 are shown in Fig. 2, slightly displaced to the left (front of machine) for clarity.
Patent GB-479869-A (GB)
Title: Improvements in or relating to apparatus for use in electro-plating metal wire or strip
IPC: B65C1/02
Filed: 1936-08-13
Abstract: 479,869. Electroplating - apparatus. MARINO, P. G. Q. Aug. 13, 1936, No. 22339. [Class 41] Wire or strip to be plated is passed in parallel lengths under metal pulleys 3 mounted on a metal shaft 4 connected by a flexible lead 18 to the negative pole, insulating discs 5, extending beyond the pulleys being disposed between them and outside the end ones. The pulleys may be grooved, as shown, or flat. The shaft 4 is mounted in a pair of arms 10 keyed to a shaft 11 mounted in brackets 12 at the sides of the bath. The opposite ends of the arms 10 carry either a counterweight or, as shown, a similarly mounted set of pulleys of larger width which may be brought into use by rotation of the arms through gearing by a handwheel 17. By adjustment of the arms 10 the depression of the wire or strip in the bath may be regulated or the wire or strip may be allowed to pass above one or more of a succession of baths. Two or more independent sets of arms 10 may be mounted coaxially over the baths to enable one set of wires to pass through a particular bath while another set passes over it. The cleaning baths may be provided with similar rollers.
Patent GB-1333422-A (GB)
Title: Liquid developing station
IPC: G03D3/06
Filed: 1970-09-02
Abstract: 1333422 Electro-photographic developing apparatus EASTMAN KODAK CO 2 Sept 1970 [2 Sept 1969] 22346/73 Divided out of 1333421 Heading G2H The subject-matter of this Specification is identical with that of the parent but the claims are concerned with a manifold attached to the lower tray portion of a narrow elongate developer station. The manifold may comprise a plurality of orifices 24, Figs. 1 and 2, at the bottom of the lower tray portion or two separate arms, 95 and 96, Fig. 8.
Patent GB-668206-A (GB)
Title: Improvements in or relating to multiple lead transmission cables
IPC: H01B11/00
Filed: 1949-08-29
Abstract: 668,206. Air space cables. AMERICAN PHENOLIC CORPORATION. Aug. 29, 1949 [Sept. 18, 1948], No. 22372/49. Class 36. An electric cable for relatively high frequency currents comprises a hollow tube 1, the walls of which are of dielectric material and are thin compared with the diameter of the tube, and in which a plurality of conductors 2, 3 are embedded so as to lie substantially parallel to the axis of the tube, beads 4 of dielectric material being formed on either the outer or inner surfaces of the tube adjacent each conductor to give additional protection to the conductors and to stiffen the tube. The ends of the conductors are withdrawn from the tube for connection purposes, and if an end of the cable is exposed to the atmosphere that end is sealed to prevent ingress of moisture and dirt. This may be effected by softening the end of the tube and then pinching the sides together, or by inserting a plug 8 within the bore. The tube is preferably made of polyethylene.
Patent GB-1309186-A (GB)
Title: Telecommunications exchange systems
IPC: H04Q3/00
Filed: 1971-04-19
Abstract: 1309186 Automatic exchange systems SIEMENS AG 19 April 1971 [27 Feb 1970] 22410/71 Heading H4K Subscribers are selectively denied the service of an identification matrix in order to reduce the load of detected call originations. As shown in Fig. 2 the relay contacts r at the cross-points of a matrix JD-N each correspond to a subscriber and operate in response to off-hook condition. Row lines of the matrix are connected across a switch array S to coders AK-G and AK-Z, groups of n rows being commoned over contacts g for identification by AK-G which switches the contacts g of the identified group so that the n row wires have individual appearances on coder AK-Z. On identification of the row wire of the calling subscriber AK-Z operates a corresponding one of the contacts z<SP>1</SP> to zn together with contacts zk so that battery is put on the row wire of the calling subscriber to identify his column wire in coder AK-S. The switch array S is controlled by a matrix array of relays AW. With contacts b0 operated all relays are operated in AW and all subscribers off-hook conditions receive attention. With contacts b1 operated a stepping switch W1 operates one row of the relay matrix AW and then steps on to the next row, and so on, so that the corresponding groups of rows of the identification matrix JD-N are given service one at a time and each for a short period. With contacts b2 operated service is further restricted as stepping switches W1 and W2 work together to operate individual relays of the matrix one after the other and each for a period so as to give service to one row of the identification matrix at a time. If none of the contacts b0, b1, or b2, is operated the identification matrix JD-N is wholly disconnected by the switch array S. The exchange involved with the invention may be a satellite controlled over a separate signalling channel.
Patent GB-347555-A (GB)
Title: Mechanism for measuring altitudes combined with a telemeter
IPC: G01C3/00
Filed: 1930-07-25
Abstract: 347,555. Range-finders. SOC. D'OPTIQUE ET DE MECANIQUE DE HAUTE PRECISION, 125, Boulevard Davout, Paris. July 25, 1930. No.22456. Convention date, May 27. Addition to 279,493, [Class 97 (i), Optical systems &c.]. [Class 97 (i).] The parent Specification describes a singleobserver range-finder which is adapted for measuring altitudes by imparting to the deviating-prism a translational movement proportional to Cos (s -#)- Cos (s + #), where s is the angle of sight and # is a function of the altitude H and is such that H Sin # is a constant. According to the present invention the single deviating-prism is replaced by two prisms, one displaced proportionally to Cos (s - #) and the other proportionally to Cos (s + #), the spindles a, a<1>, receiving these two displacements by the means described in the parent Specification, being connected by rods L, L<1> to the carriages N<1>, N<2> in which are mounted the deviating-prisms H<1>, H<2>. The range D of the target may be read on a scale on the rod L against a pointer l on the rod L<1>, the scale being graduated according to <1>/D. The apparatus may be employed as a telemeter proper, for example by disengaging one of the deflecting prisms from the altimetric mechanism and controlling it by an independent knob. It can also be used for measuring horizontal distances by substituting the angle 90‹ -s for the angle s.
Patent GB-268645-A (GB)
Title: Improvements in and connected with electrical control apparatus
IPC: H01H37/48
Filed: 1926-09-13
Abstract: 268,645. Maclaren, R. Sept. 13, 1926. Addition to 254,821. Thermal switches of the kind described in the parent Specification are modified by connecting the expanding sleeve N to the end of the non-expanding rod O by means of a cap C screwing into the rod O and an external cap C<1> to clamp the cap C into place, or alternatively by means of a pin passing through the sleeve and rod.
Patent GB-889743-A (GB)
Title: Mechanically operated sofa bed
Inventor: BRONSTIEN EDWARD L
IPC: A47C17/22
Filed: 1959-06-30
Abstract: 889,743. Bed-settees. UNITED STATES BEDDING CO. June 30, 1959, No. 22490/59. Class 52(2) A power-operated bed-settee has sections 14 . . . 17 pivoted end to end and section 17 pivoted to the frame by means of arms 24 and the power means includes a hydraulic cylinder 60 having its base pivoted to a bracket 62 extending from section 16 and the piston rod 63 pivoted at 64 to a bracket 65 on section 14. Another cylinder 66 has its base pivoted at 67 to a bracket on the settee frame while the end of the piston rod 69 is pivoted at 70 to a link 71 connected to a rocker arm 27 pivoted to a link 30, connected in turn to section 17, and to bell crank 31 pivoted to section 16, and connected to leg 59. A pump 72 in a fluid reservoir 73 supplies fluid and is operated by a reversible motor 74-controlled by switch means. In a modification a single hydraulic cylinder is used and in other modifications the power is supplied by rack and pinion or screw and nut. In a further modification Fig. 18 the sections are urged to their unfolded positions by means of springs 150, 153, 156 and power means for folding includes a cable 166 wound on a pulley 160 driven by a motor.
Patent GB-1135818-A (GB)
Title: Improvements in or relating to free wheel mechanisms
IPC: F16D41/30
Filed: 1967-05-15
Abstract: 1,135,818. Ratchet clutches. HONDA GIJUTSU KENKYUSHO, K.K. 15 May, 1967 [10 June, 1966], No. 22506/67. Heading F2C. A cycle free wheel comprises a chain driven wheel 2 with ratchet teeth 2A, a hub 1 mounting pawls 3, a spring 4 urging the pawls outwardly, and a corrugated spring ring 7 having integral claws 5, 6 as shown. In operation the ring 7 is frictionally pressed against a side surface of the wheel 2 by a thrust washer (11), Fig. 1 (not shown), so that as the wheel 2 and ring 7 rotate clockwise, Fig. 6, the claws 5, 6 move to one end of a groove 8 in the hub and allow the pawls 3 to spring up and engage the teeth 2A, and as the wheel and ring move in the other direction the claws move to the other end of the groove 8 so that the claw 6 over-rides and holds down the pawls 3 free of the teeth 2A. If the wheel 2 is held stationary in the Fig. 6 position then relative movement takes place until the Fig. 7 position is reached.
Patent GB-786563-A (GB)
Title: Improvements in or relating to condensers
Inventor: MODER ERICH
IPC: H01G5/12
Filed: 1954-08-05
Abstract: 786,563. Variable capacitors. VEB FUNKWERK ERFURT. Aug. 5,1954, No. 22756/54. Class 37. A variable capacitor comprises an outer insulating tube 1, a fixed electrode structure comprising a hollow cylindrical tube 2 and a cylindrical member 5 fitted within one end of the tube 1, an internally screw-threaded conducting bushing 6 fitting within the other end of the tube 1 and a movable electrode structure comprising an externally-threaded portion 4 engaging with the bushing 6 and a hollow cylindrical member 3 interleaved with the fixedelectrode members 2 and 5. Terminals 16 are soldered on to the flanges 8 and 12 connected to the fixed and movable electrodes respectively. In the modification illustrated in Fig. 2 (not shown), the movable electrode comprises a single hollow cylindrical portion only and an insulating ring is fitted in the base of the space between the members 2 and 5 to prevent the capacitor being short-circuited when it is adjusted for maximum capacitance.
Patent GB-316230-A (GB)
Title: Far-carrying sound-instrument
IPC: G10K5/00
Filed: 1929-07-25
Abstract: 316,230. Liechty, H. July 25, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Bells and whistles 3 are provided with rersonance chambers 6 and deflecting surfaces 7 to increase their carrying power. In the closed whistle shown in Fig. 5, the surface 7 is not provided and the effect of the chamber 6 is modified by the presence of a body 11. A plug 10 is provided for tuning the whistle tone chamber. Other shapes of resonance chamber are illustrated in Figs. 3 and 4 (not shown). Two whistles of the kind shown in Fig. 5 may be combined with the mouths of the chambers 6 pointing in opposite directions.