baber/WOPTO huggingface dataset:
Patent GB-145801-A (GB)
Title: Improvements relating to auto-balancing surfaces of screws or propellers of flying machines of the helicopter type
IPC: B64C27/32
Filed: 1920-07-02
Abstract: 145,801. Pateras Pescara, Raoul, Marquis of. July 3, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Screw and like propellers.-In order to give stability to a helicopter during flight, the propellers are formed with their blades inclined at less than a right-angle to the axis of rotation in the form of a wide-angled V.
Patent GB-497444-A (GB)
Title: Improvements in and relating to electric heating devices for cooking stoves and the like
IPC: F24C15/10
Filed: 1937-06-30
Abstract: 497,444. Electric cooking-apparatus. STEELE, E. W., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. June 30, 1937, No. 18230. [Class 39 (iii)] The conductors arranged between the terminals 5 and the sealed sheathed wire elements of a cooking device are enclosed in metal tubes 10 sweated or brazed to the elements to constitute liquid tight extensions of the sheathings 4 of the element. The conductors are insulated by glass beads and are arranged under the support 2. A U-shaped shield 11 arranged under the outer ends of the tubes is held in position by an earth pin 12. In a modification, Fig. 4, the tubes 10 are flexible and are secured to the sheaths by screwed muff couplings 17. In further modifications in which the sheath ends are arranged in junction boxes surrounding terminals on the elements, the ends of the tubes are brazed or welded to the junction boxes.
Patent GB-852476-A (GB)
Title: Improvements in or relating to charging apparatus for skip winding systems
Inventor: TROMPKE KURT
IPC: B65G47/19
Filed: 1957-06-07
Abstract: 852,476. Weighing apparatus. SKIP COMPAGNIE G.m.b.H. June 7, 1957, No. 18289/57. Class 143 [Also in Group XXX] A pressure cell 36 weighs the material in a bin for charging a skip 1 in a skip hoist. The bin is discharged by tilting the bottom 11, as described in Group XXX.
Patent GB-1217645-A (GB)
Title: Apparatus for mechanical-fluid power conversion
IPC: F16H3/72
Filed: 1969-04-10
Abstract: 1,217,645. Axial-flow pumps; turbines. GENERAL MOTORS CORP. April 10, 1969 [May 2, 1968], No. 18441/69. Headings F1C and F1T. A pump or a motor comprises a rotor having two fluid-flow passages substantially perpendicular to one another and to the axis of rotation of the rotor, the passages intersecting one another at a reaction zone whereby the Coriolis effect of the rotor rotation upon the flow in one passage produces a flow in the other passage. When the machine shown in Fig. 1 is acting as a pump, it is driven by a power input shaft 54 which rotates the rotor 12 of the machine about an axis 16 through gearing 62, 64, 70 and also rotates a paddle 46, Figs. 1 and 2, about an axis 44 through gearing 62, 64, 78, 79, 80, 82, 84. The paddle 46 circulates fluid around an annular passage 52. A further passage 20 in the rotor has an inlet link 26 communicating with a stationary inlet duct 40 and an outlet link 30 communicating with a stationary annular outlet duct 42 surrounding the duct 42. The passages 20, 52 intersect at a reaction chamber 24. The Coriolis effect of the rotor spin about the axis 16 upon the fluid circulating around the annular passage 52 produces a pressure differential in the reaction chamber 24 which causes the fluid in the passage 20 to flow in the direction of the arrows, whereby fluid is pumped from the duct 40 to the duct 42. When the machine is used as a motor, fluid under pressure from an external source flows through the passage 20. With the rotor 12 spinning about its axis 16, the Coriolis effect upon the motive fluid flowing through the passage 20 induces a flow around the annular passage 52 to drive the paddle 46 and thereby produce a mechanical power output from the shaft 54. To enable the pump pressure or motor torque to be controlled, the power input or output shaft may be connected to the paddle 46 only, the rotor 12 being spun about its axis 16 by a separate drive from a variable speed motor. Specification 1,139,369 is referred to.
Patent GB-289672-A (GB)
Title: Improvements in or relating to semi-automatic weighing scales
IPC: G01G23/18
Filed: 1927-07-11
Abstract: 289,672. White, A. E., (Dayton Scale Co.). July 11, 1927. Counter-scales and the like; compound-lever apparatus, - A semi-automatic weighind scale comprises a base, a lever system enclosed by a casing, an indicator co-opemating with a chart, and an upright indicator housing so supported from the base, independently of the enclosing casing, as to be rotatable. The scale pans 18, 20, Fig. 1, are mounted on any suitable lever system, for example, the Beranger system shown, and the fulcrum 16 of the main lever 14 is mounted on a central pillar 12 rigidly secured to the base 10. A casing 22 encloses the base mechanism. The indicator housing 23 is rotatably mounted on the pillar 12 and may be clamped thereon by a set screw 24. An arm 30 extending from one of the pan-supports 28 terminates in a cone-shaped pivot 32 engaging a shackle 38 which is provided with a depending guard plate 42 to prevent accidental displacement of the cone pivot. The cone pivot is located in the vertical centre line of the housing 23. In a modification, Fig. 5, the indicator housing 23 is joined to the pillar 12 by a flange 50 locked by screws 52 and the lever casing has a removable top plate 54. A collar 56 encloses the space between the top plate and the housing 23. A removable portion 23 of the housing is secured by a dowel pin. The indicator mechanism is actuated from an arm secured to one of the scale levers 80. Adjusting devices.-Shot cups 64. Fig. 5, are provided for the reception of balancing material. Bearings.-The fulcrum bearing stands 78, Fig. 5, of the auxiliary levers 80 are adjustable lengthwise of the machine by means of screws 82. Stops and supports for beams. - Adjustable bumpers 60, Fig. 5, are provided in the paths of cross members 62 on the main beam 14. Vibration, neutralizing.-A dash-pot 68, Fig. 5, is connected to an horizontal bracket 70 on the main beam. A door 74 permits access to the dash-pot.
Patent GB-881004-A (GB)
Title: Polymerisation catalysts and their use in the preparation of olefin polymers
IPC: C08F10/00
Filed: 1958-06-10
Abstract: High polymers of olefins of general formula CH2=CHR(R=H or alkyl) or of diolefins having at least one vinyl double bond are prepared by use of a catalyst obtained by reaction of an alkyl or aryl derivative of a bis-cyclopentadienyl complex of a Group IV-VI transition metal and halide of a transition metal of the said groups.  Preferably, a dimethyl, diphenyl or ditolyl derivative, a Ti, V or Cr complex and a chloride of Ti, V, Zr, Cr or Mo are used.  In examples, polyethylene and polypropylene are produced using a catalyst comprising bis-cyclopentadienyl titanium diphenyl and TiCl4.
Patent GB-1154309-A (GB)
Title: Method of removing Copper Containing Iron Oxide Scales from Iron
IPC: C23G1/08
Filed: 1967-04-21
Abstract: 1,154,309. Cleaning metals. HALLIBURTON CO. April 21, 1967 [Oct. 5, 1966], No.18531/67. Heading C7E. Copper containing iron oxide scale is removed from a ferrous surface using e.g. sulphuric, hydrochloric or phosphoric acid containing a complexing agent which is N - (2 - hydroxyethyl) - ethylenethiourea, diethanol thiorurea, hexahydropyrimidene - 2 - thione or 4 - methylimidazolidine- 2 - thione. The solution may be agitated, heated to 120 to 160‹F., and may contain quaternary ammonium or rosin amine ketone inhibitors. The ferrous surface may first be contacted with a heated ammonia solution containing oxidizing agents such sodium bromate or ammonium persulphate.
Patent GB-457745-A (GB)
Title: Improvements in and relating to apparatus for the treatment of roads, floors and other surfaces with heat or artificial light
IPC: E01C23/14
Filed: 1936-07-03
Abstract: <PICT:0457745/III/1> p  Roads, floors, and like surfaces are subjected to a treatment with heat or artificial light by means of an apparatus comprising a number of blocks assembled together to provide a raised horizontal surface 1 and peripheral supporting walls 2.  The assembled structure provides an enclosed space immediately above the surface to be treated and is provided with means for admitting a heated treating medium.  In the construction shown, heated air supplied by a wheeled heating apparatus 4 is conveyed by a pipe 3 to a flared member 17 suitably fitted to one of the walls 2.  The wall is mainly constructed of blocks having tongue and groove joints.  The surface 1 is composed of alternate rows of blocks 7 and 8.  The blocks of each row are arranged and formed to overlap with one another and are slotted so that they can be threaded upon removable transverse bars 8.  As shown in Fig. 5, the blocks 8 are shaped also to overlap the blocks 7.  One or more of the wall blocks may be provided with an aperture and an adjustable damper plate for regulating the temperature.  In addition to or instead of the heat treatment, the road or like surface may be subjected to a treatment by artificial light and for this purpose the lower faces of some of the blocks 7 and 8 are provided with sockets for receiving electric lamps.  Specification 437,808, [Group V], is referred to.
Patent GB-596132-A (GB)
Title: Improvements in or relating to spot welding electrodes
IPC: B23K35/02
Filed: 1945-07-20
Abstract: 596,132. Welding. MALLORY METALLURGICAL PRODUCTS, Ltd., and TUCKER, N. A. July 20, 1945, No. 18612. [Class 83 (iv)] A spot welding electrode for operating on work difficult of access, such as internal corners or internal angles, has its Operative end on one side of the lontidudinal axis formed with one or more flat faces inclined to the said axis in the direction of the tip of the electrode. The electrode 1, Fig. 2, which is presented at an incline to the work, either down hand or up hand, has one side of its end 2 formed with a pair of flat faces 5, which are inclined to the axis of the electrode and are also inclined away from each other. The angle of inclination of the faces relatively to one another is determined by the relief angle X which each face in plan makes with a plane intersecting at right angles at this side, the plane in which lies the electrode axis; This angle may vary from 0 to 60 degrees, an angle of 30 degrees being suitable for general purposes. With an angle of 0 degrees the two flat inclined faces become a single flat face, such an electrode being suitable for straight seams along internal angles with the electrode presented at an angle. Between the two flat faces an additional narrow flat face inclined to the electrode axis and preferably at right .angles to the plane of the tip 3 and with a relief .angle of 0 degrees may be provided. The other side of the end may be shaped to coincide with the surface of a cone lying at an angle to the plane of the tip 3; the tip being either circular or elliptical and inclined to the electrode axis. Instead of coning the end of the electrode, it may be simply cut across at an angle to the axis to provide the tip which may be of part elliptical form. A curved ended electrode, Fig. 5, may have an end with a tip 7 at right angles to the axis of the part 1, a sloping conical part, 8, inclined flat faces 9 and an additional narrow flat face 10 arranged. at right angles to the plane of the tip. Specifications 574,862 and 579,527 are referred to.
Patent GB-776165-A (GB)
Title: Improvements in and relating to pressure and float-operated electric switches
IPC: H01H35/34
Filed: 1954-06-25
Abstract: 776,165. Actuation of switches. STOEGER, M. June 25, 1954 [June 25, 1953], No. 18659/54. Class 38(5). In a pressure- or float-operated switch in which change of pressure or water level causes movement of a diaphragm 3 and of a spindle 4 in a housing 1, the movable contacts 21 are mounted on a holder 19 the shaft of which is parallel to the spindle 4 and co-operate with fixed contacts 22 supported on the outer wall of the housing 1. The holder 19 slides along the housing 1 and is operated by stops 6 and 9 which engage a lever 17 pivoted at 15 thereby carrying a spring 18 over a dead-centre position and operating a lever 16 also pivoted at 15 and connected to the holder 19. In the case of a pressure switch the movement of the rod 4 is opposed by a spring 13 adjustable by rotating the rod, by means of the knob 9, relative to a nut 11 which is held against rotation. A nose 34 on the nut, indicates the switching off pressure on a scale 32. The knob 9 may be adjusted relative to the rod 4 by loosening a lock nut and screwing it up or down. Instead of one biasing spring 13, two may be used, Fig. 2 (not shown).
Patent GB-899677-A (GB)
Title: A new or improved coin vending machine
Inventor: MAXWELL STEWART ALFRED
IPC: G07F11/24
Filed: 1958-06-12
Abstract: 899,677. Coin-freed vending machines. FISHER & LUDLOW Ltd. June 11, 1959 [June 12, 1958], No. 18755/58. Class 27. To enable easier re-filling, the magazine 17 of a vending machine is arranged to tilt to an inclined loading position and may be readily removable for replacement by a spare loaded magazine. The magazine has lower extensions 29 each with an open-ended slot 30 to fit over the spindle 22 of the delivery mechanism and is held in place by a bracket 35 having a vertical face 38 engaging a finger 39 on the magazine. By lifting the magazine, the finger can clear the face 38 and the magazine can be tilted to rest on a stop face 40 on the bracket. The face 40 may extend up to and be welded to the machine inner casing 10 or may be short enough to allow an empty magazine to be lifted over it and removed. The articles are delivered by a plate 23 and blade 27 on the spindle 22 and, as there is a tendency for the articles to lift during the delivery operation, a stud on the outer removable casing 11 bears in a groove on a bracket on the magazine. The magazine shown in Fig. 6 is divided into three sections from which articles are delivered in succession by the angularly-spaced pins 49 on the spindle 47. Slots 52 in the inturned base 51 and in the rear wall of the magazine permit movement of the pins through the magazine.
Patent GB-1017892-A (GB)
Title: Cutting tool for a gear-shaping machine
IPC: B23F21/04
Filed: 1964-05-06
Abstract: 1,017,892. Gear-cutting. MICHIGAN TOOL CO. May 6, 1964 [May 31, 1963], No. 18765/64. Heading B3L. A gear-shaping tool comprises cutting and retaining sections 25, 26, each having interconnecting portions with mutually engaging surfaces extending transversely of the tool, the retaining section having further surfaces by which shifting movements in opposite directions may be transmitted to the cutting section. In form-cutting a gear 12, a series of cutters surrounds the work and each cutter 25 is fed by a tapered actuating member 15 as in Specification 558,982. The work 12 is reciprocated and the tools retracted on each down-stroke. In modifications of the tool, the tongue on the section 25 may extend upwardly.
Patent GB-710176-A (GB)
Title: Improvements in or relating to illuminated signs
IPC: F21V8/00
Filed: 1950-07-27
Abstract: 710,176. Signs. HARMAN PLASTICS & ENGINEERING. Ltd., and HARMAN, H. E. May 2, 1951 [July 27, 1950], No.. 18777/50. Class 3(2) An edge illuminated sign comprises a lamp box 3 and one or more sheets 5 of transparent material such as glass or synthetic resin, opposite edges of which are polished, and having lettering or a design engraved or otherwise formed on at least one surface thereof, part at least of the or one of the sheets being bent so that the lettering or design is illuminated by way of both said polished edges from the lamp box, while when two or more such bent sheets are provided the sheets are rendered opaque to light transmitted therethrough to such extent as to prevent the lettering or design upon one bent sheet being seen through another bent sheet. The lamp box 3 is opaque and the edges of each sheet 5 enter slots in the box. Both edges may be illuminated by the same colour light or by different colours. The sheets 5 may be of any desired shape and may be used in conjunction with a flat transparent sheet which has one edge entering a slot in the lamp box. When a single bent sheet is used its two surfaces may be clear so that the lettering or design is seen from both sides or it may have a coloured transparent backing sheet. When two or more sheets are used each is backed by an opaque sheet or has one surface sandblasted.
Patent GB-498476-A (GB)
Title: Improvements in and relating to roller skates
IPC: A63C17/02
Filed: 1937-07-06
Abstract: 498,476. Resilient mountings. AUERBACH, H. T. July 6, 1937, No. 18780. [Class 108 (iii)] [Also in Group XV] The wheel axles 19, 36 each fit in a metal sleeve 50 having a ball projection 51 engaging in an annular recess in a rubber sleeve 49 housed under compression in a metal sleeve 47 spot-welded to collars 30, 44 on brackets 20, 21 and 37, 38 at the rear and front of the skate respectively. The end portions of the sleeve 49 are flared to allow the sleeve 50 to have a swinging movement about the projection 51. The projection 51 could be provided on the wheel axle. In a modification the' annular recess is formed in the wheel axle and an annular projection on the rubber sleeve 49. The brackets 20, 21 and 37, 38 are provided with pressed-out strengthening ribs 26 and 42 respectively, and are connected by an extension bar 53 held in position by a bolt 54 passing through overlapping lugs 27, 28 in the brackets 20, 21 and a slot 55 in the extension bar 53, and by a bolt 54 passing through overlapping lugs 45, 46 in the brackets 37, 38 and a slot 56 in the extension bar 53. Front clamps 57 are mounted in slideways in the toe-plate 32, downwardly extending portions 60 of the clamps being connected by an adjusting screw 61.
Patent GB-504237-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: H04Q3/00
Filed: 1937-10-19
Abstract: 504,237. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd., WRIGHT, E. P. G., and NEILSON, C.B.V. Oct. 19, 1937, No. 18802/38. Divided out of 489,545. Drawings to Specification. [Class 40 (iv)] The Specification describes a toll system dentical with that described in Specification 489,545 but the claims are directed to a system in which supervisory signalling equipment is associated with the ends of a toll line and digit storage and transmitting equipment is associated with the outgoing end, wherein a calling signal from the outgoing equipment is followed by an acknowledgment (" proceed-to-dial signal ") from the incoming equipment and in which (a) the calling and acknowledgment signals are of different frequency, (b) when the toll line is an intermediate or final line in a connection, digit transmission from the outgoing equipment is delayed until the acknowledgment is received, the storage equipment, in the meantime, receiving digits transmitted over the preceding line, and (c) the equipments at the ends of a both-way line are differently arranged so that in the event of simultaneous seizure at each end and due to the non-transmission of acknowledgments, the equipment at one end acts automatically as if it had received an acknowledgment and the equipment at the other end sends a busy signal.
Patent GB-112271-A (GB)
Title: Improvements in or relating to Automobile Tractor Vehicles.
Inventor: DESSAULES PAUL
IPC: A01B3/56
Filed: 1917-12-18
Abstract: 112,271. Dessaules, P. Oct. 6, 1916, [Convention date]. Adjusting centrally-pivoted axles for steering.- A two-way agricultural tractor comprises a pair of driving and steering wheels 3 mounted in forks 2 in a frame 1. The wheels 3 are simultaneously steered from either end of the tractor by worm gearing 21, 22 operated by hand-wheels 26, 27.
Patent GB-761705-A (GB)
Title: Electric supply circuit for the operation of x-ray tubes
IPC: H05G1/32
Filed: 1954-06-28
Abstract: 761,705. Supply systems for space discharge devices; transformer arrangements. DAVIDSEN, G. B. June 28, 1954 [March 26, 1954], No. 18878/54. Class 38 (4). In an electric supply circuit for an X-ray tube 1 having an incandescent cathode 2, and comprising two H.T. transformers 4, 5 whose secondary windings are serially connected with each other to provide an H.T. voltage supply for the tube 1 across which they are connected and one secondary winding having a winding portion 6 for supplying filament voltage to the cathode 2, and whose primary windings are also serially connected with each other the common point 7 and the two outer terminals 9, 10 of such windings being connected to tappings on a regulating transformer 8, at least two of the tappings are adjustable with respect to the regulating transformer winding in such a way that the voltages of the two primary windings may be adjusted from mutual aiding to mutual opposition. As shown, one outer terminal 9 is connected to a point 15 on the regulating transformer winding, and the point 7 and other outer terminal 10 are connected to independently movable regulating transformer winding tappings 13,14 which are each constituted by a sliding contact movable over either a stripped part of the winding or a contact piece connected to the winding turns and are disposed in different radial planes from each other so that they may be moved past each other. In another embodiment, Fig. 2 (not shown), the tapping 13 is fixed, and the tappings 14, 15 are movable and are disposed in the same radial plane as each other to minimize the height of the regulating transformer.
Patent GB-1017318-A (GB)
Title: Method and device for manufacturing metal tubes by helically coiling a sheet metal strip
IPC: B23K9/032
Filed: 1964-05-07
Abstract: 1,017,318. Coiling helically jointed tubes; welding by pressure. CENTRE DE RECHERCHES DE PONT-A-MOUSSON. May 7, 1964 [July 23, 1963], No. 18994/64. Headings B3E and B3R. A method of making a helically coiled tube from sheetmetal strip in which the edge of the first coil and the coil being formed are butt-welded after heating and wherein the strip having straight edges is fed to the coiling machine in a direction parallel with the coiling axis is characterized in that the strip is subjected to a first and second coiling stage to form the tube the abutting edges of which are welded. Strip t is fed horizontally between rollers 7 and slideway 8 to a first coiling station II comprising support rollers 13, 16, frustoconical vertically disposed bending rollers 15, and a bending plate 17 to produce an initial angle x with the strip feed axis A-A. The strip then passes via a guide plate 26 to a second station III comprising an edge roller 22 which biases the strip in an axial direction against the edge of the previously formed coil, a support roller 23, a bending plate 24 and bending rollers 25 to a final coiling angle. The strip edges are heated to white heat by high-frequency electrodes along the edges so that they weld together at the abutment point. A grooved roller 27 mounted on a fork pivotally mounted on the bed 20a maintains the edges to be welded in contact. Alternatively, a pair of inclined conical rollers, Fig. 10 (not shown), may be used. The plates 17, 26 may be replaced by guide blocks or rollers or combinations thereof.