baber/WOPTO huggingface dataset:
Patent GB-971051-A (GB)
Title: Improvements in or relating to bridging devices
IPC: B60P1/43
Filed: 1962-05-03
Abstract: 971,051. Ramps for loading and unloading vehicles. P. C. & C. K. CHASE Ltd., C. Y. HARDIE, and E. W. HARDS. April 25, 1963 [May 3, 1962], No. 17079/62. Headings B8E and B8H.  A device for bridging the gap between a lorry and a loading deck comprises a central member 21 mounted at one end on wheels 25 and provided with ramps 22, 23 which are hinged to transverse bars secured to arms 30, 35 pivoted to the member 21 by pin-and-slot connections so that the ramps may be pivoted from a folded position, in which they overlie the member 21, through and beyond a position in which the surfaces of the ramps and member 21 are aligned. Two bars 38 secured to the member 21 project into the space between the lorry and the loading deck to limit movement of the bridging device towards the edge of the lorry platform 51 and serve as handles for use in manipulating the device. Pins 41 are detachably mounted in brackets 43 on the member 21 to limit movement of the device towards the edge 52 of the loading deck. Additional brackets spaced along the sides of the member 21 may be provided.
Patent GB-1140575-A (GB)
Title: Ammunition handling mechanism
Inventor: HENSHAW ROBERT WARREN
IPC: F41A9/31
Filed: 1966-04-20
Abstract: 1,140,575. Ammunition feed mechanism. GENERAL ELECTRIC CO. 20 April, 1966 [7 June, 1965], No. 17385/66. Heading F3C. An ammunition feed mechanism for belted ammunition comprises a stripping mechanism in the form of a sprocket 40 mounted at one side of an ammunition feed path and an ammunition support provided by a spool 30 mounted at the other side of the feed path. The ammunition belt is of the disintegrating variety and is made up from links 10 having a pair of ammunition supporting loops extending in one direction from a central portion and a further loop extending in the other direction, the further loop co-operating with the space between the pair of loops of an adjacent link (Figs. 4, 6, 7 not shown). In the feeding, a cartridge in the ammunition belt rests on a pair of end flanges on the spool 30 (Fig. 3, not shown) when a tooth of the sprocket 40 engages the central portion of a link 10 and depresses the pair of loops between the flanges on to a pair of hub portions 32a, the single loop falling away from the following cartridge on further rotation of the sprocket 40 and engaging a reduced portion 33 of the hub of the spool 30. The belt is driven by a sprocket 60 coaxial with the stripping sprocket 40.
Patent GB-168206-A (GB)
Title: Improvements in means for raising vehicles
IPC: B66F7/14
Filed: 1920-06-26
Abstract: 168,206. Wayman, F. J., Robinson, W. R., and Currie, J. A. June 26, 1920. Stands or supports for vehicles.-A vehicle is raised from the ground for inspection purposes &c. by running it on to parallel rails D mounted on vertically movable rods which depend into holes in the ground. The rods C, Fig. I, are threaded and engage nuts G mounted in fixed bearings F. Sprocket teeth on each nut are engaged by a chain H, which is driven by a wheel L on a vertical shaft K. The rods C', Fig. III, support pulleys 0 around each of which is passed a rope or chain anchored at one end Z and attached at the other end to a winding-drum P.
Patent GB-410980-A (GB)
Title: Improvements in control devices for continuous current electrical machines
IPC: B60L15/04
Filed: 1933-06-19
Abstract: 410,980. Control of D.C. motors. FORGES ET ATELIERS DE CONSTRUCTION ELECTRIQUES DE JEUMONT, 75, Boulevard Haussmann, Paris. June 19, 1933, No. 17420. Convention date, June 20, 1932. [Class 38 (iii).] The change from series to parallel grouping of motors M, M1, and vice versa, is under the control of two relays M#, P#, energized by currents flowing in the fields of the motor M. When the field currents fall below a predetermined minimum, the coils B C of relay M# are insufficiently energized to maintain contacts 1, 2 open, and a winding m of an electromagnetic reversing switch for a servo motor t is energized, and a transfer switch T is moved to give parallel grouping of the motors. When the field currents reach a predetermined maximum, contacts 3, 4, of the relay P# are closed, and the reversing switch of the servo motor t is thrown over, and the transfer switch T moved to give series grouping of the motors. Each relay M#, P#, has a holding winding energized by an exciter E which supplies a field of each of the motors M, M1, in the manner described in Specification 386,009.
Patent GB-622228-A (GB)
Title: Improved arrangement for lubricating pistons or the like
IPC: F16N7/00
Filed: 1946-06-11
Abstract: 622,228. Lubricating pistons and cylinders. FOSBY, G. June 11, 1946, No. 17421. Convention date, Nov. 29, 1945. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 11, 1946]. Addition to 611,995. [Class 122(i)] In devices for lubricating pistons and comprising a pair of ports 5, 6 spaced apart in the cylinder wall 1 by a distance at least equal to the width of a piston ring 3, the ports communicating by a passage 4 with a forced lubrication device so that cylinder pressure through the port 5 forces oil retained in the recess provided by the lower end of the passage 4, to be delivered to the piston rings, as described in the parent Specification, the discharge of oil by the cylinder gases trapped in the passages 5, 4 is minimized by so restricting the cross-section of the passage 4 by an obturating rod 7 that the gases cannot enter the restricted portion and the quantity trapped is kept to a minimum. Instead of being supplied through the annular passage 9 surrounding the rod 7, the oil may be fed through a fine bore in the rod or through straight or helical grooves therein.
Patent GB-1332769-A (GB)
Title: Current inverter circuit arrangements
IPC: H02M7/515
Filed: 1970-10-22
Abstract: 1332769 Inverting BROWN BOVERI & CO Ltd 22 Oct 1970 [24 Oct 1969] 17428/73 Divided out of 1330855 Heading H2F An inverter comprises a pair of reverselyconducting thyristors 7, 8, a tapped inductor and a pair of commutating capacitors connected as shown. The invention obviates the need for reverse diodes and makes use of the shorter turn-on time and high forward blocking voltage of reversely-conducting thyristors.
Patent GB-744327-A (GB)
Title: Process and apparatus for the manufacture of catheters and the like
IPC: B29C57/00
Filed: 1953-06-24
Abstract: 744,327. Making catheters. RUESCH, W. June 24, 1953 [Jan. 15, 1953], No. 17456/53. Class 87 (2). In the process of manufacturing a catheter, a tube, extruded from natural or synthetic rubber or other plastic substance, e.g. polyvinyl chloride, in a manner which leaves one end of the tube closed, is placed in a die 6 with its open end at the place where the die enlarges to a conical cavity 7, an arm 5 supporting the die is lowered until the tube end is pushed over a core with a conical portion 3 corresponding to the cavity 7, and high frequency potential is applied between the die and the core resulting in the end of the tube being moulded to the funnel shape required. The closed end of the tube is moulded to a curved form by high frequency heating when the tube is inserted in a two-part mould with a core inside the tube, potential being applied between the mould and the core.
Patent GB-498122-A (GB)
Title: Improvements in and relating to alarm mechanism for electric clocks
IPC: G04C21/16
Filed: 1937-07-20
Abstract: 498,122. Electric alarm clocks. MOORE, H. E., and RICKETS, W. J. July 20, 1937, No. 17536/38. Divided out of 497,294. [Class 139] Alarm mechanism for electric synchronous motor clocks comprises a member 5 vibrated by the motor magnet or a mains excited electromagnet and released at a predetermined time by the clock-timing gear, the member 5, by means of a step-by-step mechanism 1, serving to rotate an alarm-operating shaft 8. One or more cams 9 may be mounted on the shaft and arranged to operate chiming hammers 10.
Patent GB-1046425-A (GB)
Title: Dispenser cathode
IPC: H01J29/48
Filed: 1963-05-03
Abstract: 1,046,425. Thermionic cathodes. GENERAL ELECTRIC CO. May 3, 1963 [May 23, 1962], No. 17601/63. Heading H1D. A dispenser cathode comprises an elongated container 1, Figs. 1 and 3, filled with a store 2 of emissive material and closed at one end by a porous plug 3. A pair of concave conductive supports 5, 6 are secured to container 1 adjacent its emitting end, and extend around and rearwardly of the cathode to form a heat-conserving cavity 9. Supports 5, 6 also form conductor leads and are connected across a power source 22 so that the cathode is partly heated by current passing therethrough and is also heated by heat-radiation and conduction from supports 5, 6. The emissive material 2 may be a thorium wire, or a barium-aluminium alloy, and the container 1, plug 3 and supports 5, 6 may be of tantalum or tungsten, or supports 5, 6 may be of rhenium. During manufacture, 325 mesh tantalum powder, pressed to between 50 and 90% of its bulk density, may be inserted in one end of a tantalum tube, sintered at 2500 C. for 15 minutes in vacuo and machined to form tapered plug 3, the machining closing the pores at the plug surface except for the untouched emitting area 4 of less than 5 mils. diameter. Concave ribbon supports 5, 6 are sealed in metal bushings 10, 11. extending through ceramic disc 12, discs 18, 19 being provided on ceramic spacers 14, 15 to shield disc 12 from deposition of emitting material. The cathode may be employed in electron beam apparatus, Fig. 4. (not shown), for recording a three-colour diffraction grating on a deformable light-valve medium in the production of colour television pictures since a tantalum-thorium cathode can tolerate the hydrocarbon vapours which may be evolved from the recording medium, examples of which are given.
Patent GB-745895-A (GB)
Title: Improvements in and relating to protection means for voltage control devices
Inventor: STEWART CHARLES
IPC: H02P9/14
Filed: 1951-07-26
Abstract: 745,895. Automatic control systems for alternators. BRITISH THOMSON-HOUSTON CO., Ltd. May 29, 1952 [July 26, 1951], No. 17761/51. Class 38 (4). A protective system for the automatic voltage regulator of a polyphase alternator in which the detector of the voltage regulator is supplied from a polyphase voltage transformer, consists of a no-volt relay which disconnects the regulator should a severe local fault reduce the voltage detected below a predetermined value; this no volt relay being over-ridden by a relay responsive to system conditions so that the regulator will remain in service during a system fault; plus either one of two alternative arrangements to eliminate the possibility of the regulator responding to a false voltage due to a minor local fault, the false voltage not being low enough to have tripped the no-volt relay. The regulator 4 is energized over the no-volt relay 5 from one phase of the voltage transformer 1. The relay 5 is over-ridden by the relay 10 responsive to system faults and which may be any one of the following-current transformers 12, current transformers plus a phase sequence component detector 11; residual current current transformer 13; or residual voltage voltage transformer 14. A further relay 15 may be provided, operated by current transformer 16 to additionally over-ride relay 5. In order to discriminate against a fault on one or two phases of the voltage transformer 1, a phase sequence component detector 7 and relay 8 is provided to disconnect the regulator under such conditions. In a modification, Fig. 4 (not shown) a time delay relay is used between the relays 8, 5 and the protective circuit to introduce a time lag to prevent false operation should relays 8 or 5 operate faster than relays 10 or 15. In a further modification, Fig. 6 (not shown), further protection against faults on one phase of star-connected apparatus is obtained by including the no-volt relay in the circuit arrangement disclosed in Specification 617,279, [Group XXXVII]. In an alternative embodiment, Fig. 8 (not shown), the possibility of a single phase fault on the voltage transformer and hence the need for the phase sequence component detector, is eliminated by connecting the windings of the voltage transformer in an opendelta arrangement with separately fused primary windings.
Patent GB-840682-A (GB)
Title: Improvements in or relating to torsionally resilient couplings
Inventor: CHAPMAN CHARLES WALLACE
IPC: F16D3/62
Filed: 1957-06-04
Abstract: 840,682. Linkwork; universal joints. TWIFLEX COUPLINGS Ltd. May 23, 1958 [June 4, 1957], No. 17770/57. Classes 80 (2) and 80 (3). In a torsionally resilient coupling between two normally coaxial shafts comprising a number of independent pairs of links 13-15, Fig. 1, the two links in each pair are pivoted to each other at 16 and are pivoted to the driving and driven parts 10, 12 of the coupling at points 17, 14 which lie at different radial distances from the axis of the coupling, at least one of the pivots 14, 16, 17 in each pair of links being provided with a rubber bush or spring restraining means, which, under no load conditions, locates the link 13 in a radial or nearly radial position. The links may act in tension or compression. Preferably the two links in each pair are substantially at right angles under no load and only the pivot 17 has restraining means. As shown each link 13 is inclined to the radius in a leading direction so that the centrifugal force thereon opposes the swinging effect of the torque transmitted. In a constructional arrangement the links are pivoted on pins 20, 27, Fig. 4, extending axially from arms 19, 26, radiating from driving and driven hubs. Each pin 27 forms a pivot 14, Fig. 1, engaging its link 13 through a bearing sleeve. Each pin 20 forms a pivot 17, Fig. 1, and engages its link 15 through a rubber bush bonded between inner and outer metal sleeves. The inner sleeve is clamped between the head of the pin 20 and the arm 19; the outer sleeve is fixed in sockets in the end of the link 15, this link being formed in two side-by-side parts, Fig. 5, whose ends form fork arms 40. The link 13 is also formed in two parts which lie between the arms 40 and engage a pivot pin 36 through a bearing sleeve. In a modification each link 15 is formed as a single part and each link 13 as two spaced parallel parts.
Patent GB-630302-A (GB)
Title: Improvements in model building blocks
IPC: E04B2/02
Filed: 1947-07-05
Abstract: 630,302. Building blocks. ASH, A. G. July 5, 1947, No. 17788. [Class 87(i)] [Also in Group XV] A n interlocking building block of clay o r artificial resin is formed on its upper surface with square projections a surmounted by pegs a<SP>1</SP> and on its lower surface with a single rectangular recess a<SP>2</SP> within which are further recesses a<SP>3</SP> corresponding respectively to the projections a and pegs a<SP>1</SP>. Half blocks are provided for bonding.
Patent GB-1169403-A (GB)
Title: Strip Welding Machine.
IPC: B23K11/06
Filed: 1967-04-18
Abstract: 1,169,403. Joining strip; shearing; welding by pressure. MESSER GRIESHEIM G.m.b.H. 18 April, 1967 [20 April, 1966], No. 17793/67. Headings B3A, B3R and B3W. In a welding machine for welding together overlapping strip ends by means of a carriage which is slidable along the seam and on which cutting and welding means are disposed, the cutting means are in operation only during forward travel of the carriage and the welding means are in operation only during the return of the carriage. During operation of a steel strip rolling mill, the strip passes through the machine along a plane 22. When the end 19 of the strip passes through the machine it is gripped by clamp jaws 15, 16 and the end 18 of a new coil is secured in clamp jaws 13, 14. The pairs of jaws are pivoted upwardly to align the ends 18, 19 with shear rollers 20, 21. The rollers are mounted on a carriage 3 which is traversed across the width of the strips to trim the strip ends. Welding rollers 1, 2 and squeezing rollers 4, 5 which are also mounted on the carriage are held open as the strip ends are sheared, Fig. 2 (not shown). When the carriage 3 has reached the end of its travel the jaws 13, 14 and 15, 16 are pivoted to bring the strip ends 18, 19 in overlapping relationship in the plane 22 and the rollers 1, 2 and 4, 5, are brought together by hydraulic means. The rollers 1, 2 have an electrical current passed therethrough to weld the strip ends together and the rollers 4, 5 roll over the weld seam while it is still hot. After the carriage has completed its return stroke the clamp jaws 13, 14 and 15, 16 open to allow the strip to continue towards the rolling mill.
Patent GB-980458-A (GB)
Title: Improvements in or relating to devices for the thermoelectric conversion of heat, the devices employing peltier elements
IPC: F25B21/02
Filed: 1961-05-16
Abstract: 980,458. Thermoelectric devices. SIEMENSELECTROGERATE A.G. May 16, 1961 [May 17, 1960], No. 17838/61. Heading H1K. In apparatus for generating heat, cold or current in which thermoelectric elements 1 are interconnected to form a block by copper bridges 2 the remote surfaces of which form heatemitting and heat-absorbing surfaces on opposite sides of the block, copper tubes 3, 4 are hardsoldered to these surfaces and are secured by glass-to-metal seals 7 in apertures in the condenser 6 and evaporator 7 of evaporating- condensing heat transfer systems. The heat transfer media thus have direct contact with the surfaces. The media in the two transfer systems are different and so selected as to their vapour pressures that pressure differences between the colder and hotter systems are reduced or eliminated. The block is square and the assembly of evaporator, condenser and block is circular and mounted in the wall of a cabinet. The evaporator and condenser are connected by bolts 17 having insulating sleeves or spacers 16 so that the thermoelectric elements are relieved of stress.
Patent GB-813514-A (GB)
Title: Improvements in or relating to devices for dispensing paste-like materials
IPC: A47G19/18
Filed: 1956-06-11
Abstract: 813,514. Syringes. MARRAFFINO, L. L. June 11, 1956, No. 17948/56. Class 102(2). [Also in Groups VI and XVII] A syringe for dispensing together at least two paste like materials to form a striped stream comprises a container 30 the discharge part 40 of which includes a major central passage defining portion 48 which extends a short distance into the body of the container, the central passage communicating at one end with the major portion of the container and at the other end with the outlet nozzle, and at least one minor passage 50 communicating with the portion of the container 30 surrounding the portion 48 and through slots 52 with the central passage-way. The central and minor passages are formed by a plug 47 fitting into the discharge part 40 and comprising the central portion 48 and four spaced bosses 49 defining longitudinal slots 50. Coloured material is packed in the head end 40 surrounding the central portion 48 and base material is packed in the major portion of the container 30. In a modification the plug 47 is provided with a skirt member surrounding the portion 48 and forming a container for the coloured material.
Patent GB-275196-A (GB)
Title: Improvements in or relating to work-clamping mechanism for fusion welding
IPC: B23K37/04
Filed: 1927-07-06
Abstract: 275,196. British Thomson-Houston Co., Ltd., (Assignees of Chapman, V. J.). Aug. 2, 1926, [Convention date]. Hollow - ware; pipes.-In a workclamp for an electricarc or gas welding machine for welding the longitudinal seams of pipes, tanks, &c. the edges of the parts to be welded are pressed intimately into contact with a backing strip extending along the line of the seam by supporting members spaced laterally from the strip and co-operating with means engaging the other side of the work between the seam and the supporting members. The edges of pipes &c. are at the same time bent by the clamping members to the required curvature. The parts may be placed between supports of a machine which may be provided with a carriage carrying an arc welding head and traversable over the work. The backing strip 15, which may be of copper, may be secured to a strip 16 forced up by fluid pressure as described in Specification 246,795, [Class 83 (iv), Metals, Working]. The strip 15 may be secured to the strip 16 by wires 17 welded to the strip 16. The supporting members 18 may be welded to the strip 16 so that when the strip is forced upwards they co-operate with the members 14 to press the edges of the work into intimate contact with the strip 15 and for curved work, as shown, to bend the edges to the required curvature. In a modification, Fig. 4, the members 18 may be secured to the strip 16 by screws 19 so that packing strips may be placed thereunder to suit work of different curvatures or flat plates. The work engaging portion of the strip may be grooved so that thorough penetration may be effected during welding and the joint reinforced on the under side of the work by welding metal.
Patent GB-631280-A (GB)
Title: Improvements in or relating to footwear
IPC: A43B23/02
Filed: 1947-07-08
Abstract: 631,280. Slip lasted shoes. KOHUT, E. July 8, 1947, Nos. 17984/47 and 11093/48. [Class 17 (ii)] In a slip lasted shoe with closed toe and heel ends the upper is made in two or more parts 2, 3 connected by flexible joints 4. These joints 4 primarily allow relative movement longitudinally between the parts of the upper during its attachment to the sock lining so that relative stretching between the lining and the upper during stitching can be taken up without forming wrinkles or folds. The joints 4 also allow the upper to conform more comfortably to the foot. A platform cover 10 can be attached after the sock lining and upper are assembled and a last inserted on the shoe finished in any desired way. The joints 4 can be made with transverse slits 5 through which lacing 6 is threaded to allow adjustment of the joint. The lacing can be sewn to the insole and upper at one end and to the upper at the other and can be extended to lace the shoe. The joint can be in part sewn or otherwise fastened at the upper end leaving only the lower edge free, or the two upper parts can be secured at each end of the joint after attachment of the insole leaving the centre free. In a modification, a strap can wholly or partly cover the joint such a strap being secured between the upper and the platform cover if desired with an elastic connection to facilitate inserting the foot, or the strap can be in two parts joined by lacing.