baber/WOPTO huggingface dataset:
Patent GB-1195079-A (GB)
Title: Improvements in Thread Severing Mechanism.
Inventor: HOVERTER B
IPC: D05B65/00
Filed: 1967-12-14
Abstract: 1,195,079. Sewing machines. AMERICAN SAFETY TABLE CO. 14 Dec., 1967 [2 Nov., 1967], No. 56921/67. Heading D1G. A lock stitch sewing machine comprises an electrically-heated element disposed beneath the throat plate and adjacent the needle-passing hole therein, and thread pick-up means operative when actuated to pick up only the needle thread extending from the needle for drawing thread from the supply, and then to catch the needle and bobbin threads extending from the work and to shift said threads against the heated element for severing the same. When the needle is rising and the thread takeup leaver 25 is adjacent its lowest position, a thread pick-up arm 35, disposed beneath the throat plate 31 is swung clockwise by the energisation of a rotary solenoid 42. The bobbin thread 41 and the limb 40a of the needle thread extending from the work are then deflected by the inclined outer edge 44 of arm 35, and the limit 40b of needle thread extending from the needle lodges in a notch 43 in the forward edge of arm 35, whereby sufficient thread to commence the next seam is drawn from the supply. Solenoid 42 is then de-energised, whereby arm 35 swings counter-clockwise and the thread 41 and thread limb 40b, now engaged with the rear edige 45 of arm 35, are shifted against an electrically-heated element 36 and are severed thereat. Solenoid 42 is energised when a switch 51 is closed by an energised relay 52. Element 36 is heated when a switch 55 is closed by an energised relay 56. The machine is arranged to stop automatically with the needle in its lowest position by means comprising three rotary slip rings 83, 84, 85 interconnected by a bar 85'. Actuation of a treadle then serves to raise the presser foot, to release the thread tension, and to close a switch 62 whereby the needle is raised to its highest position. A rotary segment 64, connected to bar 85', on contacting a brush 65 serves to energise relay 52 via a switch 63 which is coupled to switch 62 for actuation therewith. Thereby relay 42 is energised and a switch blade 59 is shifted to a contact 60 for charging a capacitor 57. Relay 52 is de-energised when segment 64 disengages from brush 65, whereby relay 42 is de-energised and blade 59 re-engages a contact 58 for dischanging capacitor 57 through relay 56 for heating element 36 through temporarily closed switch 55.
Patent GB-1280446-A (GB)
Title: Measuring apparatus
IPC: G01D5/50
Filed: 1970-12-02
Abstract: 1280446 Indicating movement photoelectrically VDO TACHOMETER WERKE ADOLF SCHINDLING GmbH 2 Dec 1970 [6 Dec 1969] 57243/70 Heading G1A The movement of a mechanical member, e.g. a diaphragm 3 responsive to pressure fluctuations in a space 6, is converted to an electrical output by means of a #-ray source 7 and a semi-conductor detector 8, which move relative to one another in response to movement of the member to produce from the detector an output in digital form which may be displayed on a counter. Thus, the detector produces a train of pulses each corresponding to an individual particle, and the pulse rate depends on the separation of the source and detector. The rate of change of pulse rate indicates the speed of movement of the'member. The mechanical member may be part of an instrument for measuring temperature, or may be linked to a piston, whose end carries the source, movable in a cylinder, at whose end is situated the detector. The detector output may be converted to analog form using an integrator.
Patent GB-1420422-A (GB)
Title: Pump arrangements
IPC: F04B1/22
Filed: 1973-12-11
Abstract: 1420422 Reciprocating pumps; rotary positivedisplacement pumps TOKYO KEIKI KK 11 Dec 1973 [28 Dec 1972] 57293/73 Headings F1A and F1F A pump having a low noise and pulsation output comprises a plurality of pump units, e.g. piston, vane or gear pumps, each having a plurality of displacement elements, i.e. pistons, vanes or gear teeth, the pump units being connected to a common outlet and driven simultaneously with a phase shift between them of 360 degrees divided by the product of the number of pump units times the number of displacement elements in each unit. In Figs 3 and 4 (not shown), two vane pumps are mounted on a common shaft. In Figs. 5 and 6 (not shown), two axial piston pumps are arranged backto-back with their pistons engaging opposite sides of a common swash-plate. In Fig. 7 (not shown), two axial piston pump units engage a common valve plate and have respective swash-plates inclined either in the same direction, or opposite directions, Fig. 8 (not shown). In Figs. 9 and 10 (not shown), the pump units are substituted by two sets of concentrically arranged axial pistons in a common cylinder block with respective pairs of inlet and outlet ports and a common swash-plate. In Fig. 11  (not shown), three gear pumps are driven by a common shaft.
Patent GB-1411228-A (GB)
Title: Electrical insulators
IPC: H01B17/14
Filed: 1972-12-13
Abstract: 1411228 Electric fence insulator D S M PHILLIPS and P A PHILLIPS 13 Dec 1972 57503/72 Heading H2C An insulator for supporting the wire of an electric fence comprises a bifurcated member having means, e.g. slots 22, to support the wire -aperture in the arms of the insulator so that it can be fixed to a post 21 by a pin or bolt which also passes through an aperture in the post and means such as protruberances on the inside faces of the arms, to ensure that the wire holding part of the insulator is spaced from the post 21. Instead of L-shaped slots 22 sloping slots may be provided, Figs. 1-5 not shown. In Figs. 6 and 7, not shown, the bifurcated member is twisted through 90 degrees about its longitudinal axis and the wire is supported in the space between the arms adjacent the U-shaped end. The member is preferably of polyethylene.
Patent GB-1393977-A (GB)
Title: Ventilation blocks
IPC: E04D13/17
Filed: 1972-12-14
Abstract: 1393977 Roof Ventilation WUN-TE CHANG 14 Dec 1972 57650/72 Heading E1B [Also in Division F4]  A block for placing between overlapping roofing sheets 2 and 2a has a plurality of baffle members 13 defining zig-zag passages 14 through the block. The upper and lower faces of the block are corrugated to match the corrugations of the roofing sheets. Drain holes 15 are provided in case rain water should penetrate the passages. The blocks are secured in position by hook bolts 7 engaging joists 41.
Patent GB-1321548-A (GB)
Title: Roof system
IPC: E04D7/00
Filed: 1971-12-16
Abstract: 1321548 Roofs KOPPERS CO Inc 16 Dec 1971 [2 Feb 1971] 58538/71 Heading E1W A roof comprises a base 13 of, e.g. wood or metal, a low density concrete layer 15 including a homogeneous dispersal of expanded beads of a thermoplastic material, polystyrene and a layer 17 of bituminous material mechanically bonded to the surface of the concrete layer. The concrete layer comprises, e.g. ¢ to 1 part by weight of an homogenizing agent; 3 parts by weight expanded beads; 50-90 parts by weight of Portland cement; and 35 to 45 parts by weight water. An upper layer 19, of aggregate may be employed, and the bituminous layer may be laid hot over a layer of reinforcing fabric, through which it can percolate. The heat of the bituminous layer will disintegrate some of the beads and allow a mechanical interface bond in either embodiment. The concrete layer may be reinforced by nylon fibres, or sisal, and may contain fillers, e.g. wood shavings, cork, &c. Examples of suitable cements, bituminous layers, &c. are given in the Specification.
Patent GB-1275526-A (GB)
Title: Means for interconnecting polyhedral ducts, such as ventilating air ducts
Inventor: MEZ GEORGE
IPC: F16L23/14
Filed: 1970-12-10
Abstract: 1275526 Pipe &c joints G MEZ 10 Dec 1970 [10 Dec 1969 9 July 1970] 58761/70 Heading F2G Two rectangular &c, air ducts 11, 12 (Fig. 1) are joined by rectangular frames slid over and secured to the ends of the ducts. Each frame is fabricated from sheet metal and has four hollow sides such as 24, 26 to the ducts by welding or riveting. The arms 41, 42 (Fig. 2) of solid brackets 39 are received between the ends of parallel walls 29, 32 of the frame sides to which they are preferably spot welded as at 40. In the form shown the walls 13, 14, 16 of the ducts are welded, or riveted as at 38, between frame walls 28, 37 of the frame sides. The brackets 47 of ducts 11, 12 are secured together, with a seal between the flanges, by bolts through holes 44. Holes 49 assist in aligning the ducts.
Patent GB-1185800-A (GB)
Title: Improvements in or relating to Rack and Pinion Assemblies
Inventor: BRADSHAW KENNETH
IPC: F16H55/26
Filed: 1968-12-12
Abstract: 1,185,800. Rack and pinion gearing. CAM GEARS Ltd. 12 Dec., 1968, No. 59141/68. Heading F2Q. In a rack and pinion gear for vehicle steering mechanisms, the rack 3 is formed on a sleeve 10 which is carried on a rack bar 9 and is capable of restricted longitudinal sliding movement relative to the rack bar against the progressive resistance of resilient means 12, 13. The rack 3 is held in mesh with a pinion 1 by a spring- urged yoke 5 acting on the back of the sleeve 10. The sleeve 10 is eccentrically bored at 10a to receive a rod 9a extending eccentrically from a portion 9c of the rack bar, the sleeve being coaxial with the portions 9b, 9c. The rod 9a is screwed into the end portion 9b. Polyurethane or other resilient washers 12, 13, or helical or Belleville metal springs separate the sleeve 10 from the end portions 9b, 9c, packing shims 14 being used as necessary. Sleeve bore 10a and rod 9a may be alternatively coaxial with portions 9b, 9c.
Patent GB-1377768-A (GB)
Title: Orthodontic appliance
IPC: A61C7/12
Filed: 1971-12-21
Abstract: 1377768 Orthodontic appliances P C KESLING 21 Dec 1971 [21 Dec 1970] 59392/71 Heading A5R An orthodontic appliance 25 for use with a bracket 34, Fig. 6, having attaching flanges 41, (40), Figure 5 (not shown), and a body 35 extending labially from the flanges and having sockets (36) at the occlusal and gingiral ends thereof and a mesial-distally extending arch wire slot, comprises a frame 25, Fig. 1, projections 31, 32 on the frame adapted to engage in the sockets (36) and lock the appliance on the bracket, and an arm 33 extending from the frame to overlie the arch wire slot to lock the arch wire 43 to the bracket, deformation of the frame being necessary to mount or demount the appliance on the bracket. The appliance or lock ring 25 may be made of metal, such as brass, or moulded from a resilient plastics material. In the case of a metal lock ring 25, it is made in a shape to be easily slipped on to the bracket and is subsequently deformed by squeezing the ring on surfaces 29a, 30a with a pliers. On the other hand, a resilient plastics lock ring is moulded in the shape that it will ultimately take when applied to a bracket, and the ring is deformed by compressing the sides 27, 28 during application. The appliance may alternatively take the form of a half-ring (62), Figure 11 (not shown), or of a lock ring (75), Figure 16 (not shown), including lingually facing projections (79) defining slots (77) for accepting the arch wire'43 to prevent relative tipping of the arch wire and lock ring. To effect mesiodistal inclinations a lock ring (84), Figure 18 (not shown), is provided with flexible mesiodistally directed extensions (86), (87) having hooked ends for engaging the arch wire.
Patent GB-1212948-A (GB)
Title: Magnetron assembly
Inventor: VALLES BENJAMIN VERA
IPC: H01J25/50
Filed: 1968-12-16
Abstract: 1,212,948. Magnetrons. LITTON INDUSTRIES Inc. 16 Dec., 1968 [16 Feb., 1968], No. 59767/68. Heading H1D. A magnetron assembly includes at least one permanent magnet, and a stack of mutually spaced and parallel cooling fins which is in thermal contact with the magnetron envelope, and which surrounds all those magnet surface portions which would, in the absence of the stack, be exposed, whereby the stack forms a protective barrier encircling the magnet or magnets. As shown, the magnetron 1 is mounted through apertures 21, 23 in the polepieces 17, 19, with the latter in contact with ferromagnetic portions of the tube envelope through ferromagnetic collars 11, 13. A wire mesh seal 12 fills the groove between the edge of aperture 21 and the dome-like glass output window 7, to which one of the magnetron cavities is coupled by the conductive element 9. Fins 29, apertured to receive the magnetron 1 and a pair of permanent magnets 25, 27, each have a pair of opposite edges provided with rims 43, 45 of a depth corresponding to the required fin spacing, adjacent fins thereby forming air channels 47 through which air is blown; the end fin 29<SP>1</SP> is inverted, forming a channel of double width. The central aperture in each fin has a flared rim (41, Fig. 2, not shown) to grip, and provide an increased area of contact with, an aluminium sleeve 15 which is pressed or shrunk-fitted over the tube envelope, the whole assembly being held together either by bolts or rivets 49, or merely by the attraction of the magnets for the polepieces. In an alternative arrangement, the aluminium sleeve 15 is dispensed with, the fins being arranged to contact directly the predominantly copper envelope.
Patent GB-1244979-A (GB)
Title: Apparatus for washing glasses, dishes and the like
IPC: A47L15/46
Filed: 1968-12-17
Abstract: 1,244,979. Dishwashing machines. HOBART MFG. CO. Dec. 17, 1968 [Jan. 5, 1968], No. 60045/68. Heading A4F. A dishwashing apparatus comprises a cabinet 15 divided by a vertical partition 22 into a washing chamber 30 and a chamber 32 containing a motor 65 for driving a pump 68, 70 for circulating washing liquid through a spraying device 75 Fig. 5 (not shown), and for drawing washing liquid from the cabinet, the pump 68, 70 being mounted beneath an opening in the bottom wall 25 of the cabinet which slopes downwardly towards the motor chamber 32 and is spaced from the lower edge of the partition 22 to permit liquid flow to the pump from the washing chamber 30. A filter 90 may entend across the gap between the partition 22 and the bottom wall 25, a supply of water is heated by electric resistors 60 in a tank 45 disposed beneath the washing chamber and is forced into the latter, when heated to desired temperature, by fresh water introduced through a solenoid valve into the tank 45. The electrical control system for the apparatus is described in detail. A rinsing agent dispenser 95 and a sanitizing agent-dispenser 100 Fig.6 (not shown), are mounted on the partition 22.
Patent GB-1270906-A (GB)
Title: Improvements in or relating to reciprocating cable traction apparatus
Inventor: LEBRE CHARLES JEAN PIERRE
IPC: B66D3/00
Filed: 1970-12-18
Abstract: 1,270,906. Hauling cables. C. J. P. LEBRE. 18 Dec., 1970 [26 Dec., 1969; 23 Jan., 1970], No. 60272/70. Heading B8B. A cable traction apparatus which operates by successive reciprocating movements of cable clamps is adapted to be operated manually by an oscillatable lever 2 or automatically by an engine 4 which through a crank arm arrangement 9, 22 selectively continuously oscillates the lever 2. A driving sprocket 14 of the engine 4 meshes with a sprocket 15 rigid with a sprocket 16 which drives an endless chain 18 over guides 24, 25 and over an idler roller 17. A crank-pin 19 pivoted to a pair of adjacent chain pins 20, 21 is pivoted to a connecting-rod 22 pivoted to a connecting arm 9, the latter being selectively coupled to a strap member 8 rigid with the lever 2, by means of a notched sleeve 12 slideable along the arm 9 and screw lockable to engage a projection 11 on the member 8. In the embodiment of Figs. 2, 3 (not shown), the connecting-rod and one arm are replaced by a two-section telescoping arm.
Patent GB-1276420-A (GB)
Title: Article marking apparatus
IPC: B07C3/18
Filed: 1970-12-21
Abstract: 1276420 Sorting postal mail XEROX CORP 21 Dec 1970 [24 Dec 1969] 60523/70 Heading B8A Certain ones of a series of Addressed articles 9 are marked so as to be readily distinguished from unmarked articles, by marking means 50 arranged for movement into contact with the surface of an article 9. Drive means 51, 52, 54 moves the marking means, and is controlled by means 48 for scanning the article addresses. The latter are carried on labels 32 supplied in strip form from a supply roll 34. The control means is adapted on a predetermined article address, to actuate the drive means to cause the marking means 50 to move into contact with the predetermined article and make a mark (11) (Fig. 3, not shown), in response to a control mark (45) (Fig. 1, not shown) on the predetermined article address. The control means includes means to delay actuation of the drive means after sensing of the predetermined article address. The latter comprises a mechanical delay device (Fig. 4). A switch actuator 69 on a rotor 68 is projected by energization of a solenoid 62 following operation of a switch 48 controlled by motivation of the scanning means 48. The rotor 68 is stepped around in synchronism with the operation of a machine 5 which is addressing the articles. By the time the rotor 68 steps round into a position in which the projected actuator 69 reaches an operating member of a switch 74 controlling the marking pen 50, the addressed article has been conveyed into position beneath the pen.
Patent GB-1367459-A (GB)
Title: Photographic recording material
IPC: G03C1/43
Filed: 1970-12-21
Abstract: 1367459 Imidazole derivative AGFAGEVAERT 29 Nov 1971 [21 Dec 1970] 60633/70 Heading C2C [Also in Division G2] 3-Allylimidazolin-2-thione is made by reaction of N-allylethylenediamine with CS 2 , followed by boiling to expel H 2 S.
Patent GB-1204560-A (GB)
Title: Method of testing airtightness of hermetically sealed tanks
Inventor: YAMAMOTO KATSURO
IPC: F17C13/02
Filed: 1968-12-31
Abstract: 1,204,560. Testing containers for leaks. BRIDGESTONE EKIKA GAS K.K. Dec. 31, 1968. No.61942/68. Heading G1S. A tank having a thin wall 1 welded at 3 may have its weld tested by introducing a gas such as hydrogen sulphide under pressure into space 2 and detecting any leakage through a lead acetate impregnated paper or cloth filter strip 4 adhered over the weld by noting discolouration of the strip. The strip may be enclosed in a gas impermeable sheet 5 and a space 8 between the sheet and a domed spacer member 6 over the wall 1 is evacuated by a pump 10. Alternatively the wall 1 may be vibrated to remove small loose particles obstructing a leakage path. Various examples of gases and detecting substances are given.
Patent GB-1292669-A (GB)
Title: Box blank folder
IPC: B31B50/36
Filed: 1969-12-22
Abstract: 1292669 Box blank folder HARRIS-INTERTYPE CORP 22 Dec 1969 62356/69 Heading B5D Box blanks 78 travelling along a roller-way 20 under a belt 22 have their end panels 80, 90 progressively folded to overlap by a pair of flexible rods 24, 26 and a belt 96. Each rod 24, 26 which may be of nylon, is connected to a respective drive shaft 40, 40<SP>1</SP> via positioners, e.g. 28, 32, 36, 38 inclined at 0, 45, 90 and 135 degrees to the horizontal so that each end panel, e.g. 80 passing under the upstream end of its associated rod, e.g. at 28 may be progressively folded downwardly and inwardly through 135 degrees by the rod. The belt 96 subsequently completes the overlapping of the end panels. Each positioner comprises a jaw (62, Fig. 2; 76, Fig. 4) connecting the appropriate rod to a rack (56, Fig. 2; 68, Fig. 4) which is driven by a sprocket (60, Fig. 2; 66, Fig. 4) mounted on the relevant shaft 40, 40<SP>1</SP>. The shafts may be driven by a common or separate electric motors 44 via a chain drive 46. The rods 24, 26 may be replaced by tubing having perforations (27, Fig. 12) through which pressure air is passed to reduce friction between blank and tube. The end panels may be folded upwardly and inwardly by the rods and may be of different size. The positioners may be adjusted simultaneously whilst the machine is operating upon a blank.
Patent GB-684270-A (GB)
Abstract: 684,270. Ignition systems. SMITSVONK, N. V. June 5, 1950 [June 8, 1949], No. 14003/50. Class 7 (iv). In an internal-combustion engine ignition circuit in which electrical impulses are generated by variations of a magnetic field, the impulses being used to charge one or more condensers 8, Fig. 3, without the interposition of switching members, it is arranged that the impulses are of such strength that the state of charge of the condenser 8 produced by one single impulse is sufficient to bring about discharge of one or more low-tension sparking plugs, not shown, connected practically without inductance to the condenser. A voltage regulator 20, is connected in parallel with each winding 18 of a bi-phase alternator 1, each inner phase wire having a rectifier valve 22 in series therewith; beyond the rectifier the inner phase wires combine to form a common earthed line. The outer phase wires are also joined beyond the voltage regulators 20 and the condenser 8 is connected between this common wire and the earthed line, which common wire is connected to means determining the discharge moment of the condenser across a sparking plug, not shown. The sparking plug lead can include a distributer which may additionally function as the timing means. In a modification, the alternator windings may be joined to form an earthed neutral point, the voltage regulators being connected in the outer phase wires; the rectifier valves may be replaced by selenium rectifiers. In a further modification, the voltage regulators are dispensed with and the rectifiers are of the gas-filled cold cathode type. In another modification, one line of a single-phase alternator 1, Fig. 2 is earthed whilst the other is divided beyond the voltage regulators 11 each line part having a metal rectifier 12 so arranged in series therewith that current passes in the opposite direction therein; the condenser 14 is connected between the latter and the earthed line. The metal rectifiers may be replaced by hot cathode tubes. In a still further modification, a single-phase alternator 1, Fig. 7, supplies the condenser 8 through an adjustable spark gap 27. A fixed spark gap can replace the adjustable one and another condenser may be disposed directly across the alternator to prevent the alternator voltage from becoming excessive at high speeds. The rectifiers in any of the above embodiments may be of the type known under the Registered Trade Mark of 'Westinghouse' or may comprise Rayton tubes that have cold cathodes of different surface areas or mechanical rectifiers may be used. Where the circuit contains one plug the distributer may be replaced by an interrupter. U.S.A. Specification 2,506,472 is referred to.
Patent GB-987773-A (GB)
Title: Apparatus capable of indicating the extent of highway usage by a road vehicle
Inventor: BEAVEN CLIFFORD HENRY JAMES
IPC: G07B15/06
Filed: 1962-06-25
Abstract: 987, 773. Metering highway usage. GENERAL PRECISION SYSTEMS Ltd. June 24, 1963 [June 25, 1962], No. 24377/62. Headings G4D and G4T. [Also in Division H2] Use of a road vehicle on certain roads is metered by picking-up radio-frequency signals. Radio-frequency transmitters 25 are laid at intervals across a road so as to influence a pickup unit 27 and avalanche type pulse-generator 29 to advance a register 31, all this latter equipment being in a capsule 26 on the road vehicle. Alternatively the transmitter 25 is laid along a road and issues pulses of radio frequency so that the duration of the vehicle's presence is metered. The capsule 26 has a battery charged by a seismic generator, Fig. 2. The capsule is sealed except for read-out terminals.