baber/WOPTO huggingface dataset:
Patent GB-630787-A (GB)
Title: Movable roller bridge
IPC: E01D15/10
Filed: 1946-10-03
Abstract: 630,787. Roller bridges. SOC. D'ETUDES ET DE TRAVAUX SETRA SOC. ANON. Oct. 3, 1946, No. 29528. Convention date, Oct. 6, 1945. [Class 20(i)] A roller bridge comprises a pair of truss members 1 carried by rollers 2 and counterweighted at 6, the truss members 1 being withdrawable into spaces 8 to allow ships to pass the bridge, and being coupled together by a bolting device 7, when it is desired to re-establish the bridge roadway. The trusses 1 may engage as in Fig. 8 so that bolts 21 actuated by screw jacks or by right and left hand screws 22 by a gear 24, 25 may couple the ends of the trusses together. The bolts 21 may be located in the tension zone of the bridge, the trusses having buffer-members where they meet in the compression zone, or bolts may be provided both in the tension and compression zones. The spaces 8 are covered by decking 10 level with the bridge flooring 5, the intermediate part of the roadway being constituted by movable flaps 9 which may be elevated to allow the bridge flooring to pass thereunder. In a modification, the decking 10, Fig. 9, extends up to the bridge flooring 5, the trusses 1 being elevated by screw jacks and supported on withdrawable supports 30 in the operative position; the trusses are lowered on to the runway 3 after laterally sliding the supports 30, and are then run back to open the bridge. In a further modification the bridge flooring 5 is carried by hinged bars on the trusses so that the flooring may be lowered on to the trusses to allow the trusses to run back.
Patent GB-1193735-A (GB)
Title: Frequency Synthesizer Apparatus for the Transmission of Speed Data to Trains
IPC: B61L23/16
Filed: 1968-06-20
Abstract: 1,193,735. Train signals. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. 20 June. 1968 [21 June. 1967], No. 29535/68. Heading B7N. A track loop K in advance of a signal having aspects R (red), J (yellow) and V (green) is fed, in dependence on the aspect, with a signal having a frequency which is indicative of the train speed required at the signal. When the section following the signal is occupied relay V releases operating aspect R and supplying a signal to gate P 00 , when one section following the signal is free relay V picks up energizing aspect J (yellow) and supplying a signal to gate P 16 , when two sections are free relay A also picks up energizing aspect V (green) and supplying a signal to gate P 18  and when three or more sections are clear relay P picks up supplying a signal to gate P 15 . The gates are associated with oscillators F 00 , F 16 , F 18 , and F 20  and filters f 00 , f 16 , f 18  and f 20  which respectively generate and pass signals at frequencies indicative of speeds at the signal of 0,160 km./h., 180 km./h. and 200 km./h. Assume aspect J (yellow) is showing, gate P 16  is opened and the oscillator F 16  signal is applied via the gate, filter f 16 , amplifiers AS and AP to the track loop K, whereby a train entering the loop section picks up the signal and regulates its speed to 160 km./h. at the signal. In addition the output of amplifier AP supplies the signal to a comparator C which if the signal is between preset limits maintains gate S open so that the oscillators may be energized via unit O and amplifier AA. Switch B which by-passes gate S, allows the apparatus to be switched on initially.
Patent GB-683610-A (GB)
Title: Improvements in or relating to a device for use in moulding plates and other flat objects made of polymerized synthetic resinous material
IPC: B29C39/32
Filed: 1948-11-13
Abstract: 683,610. Moulds for cast-polymerizing synthetic resin sheets. CESKOSLOVENSKE CHEMICKE ZAVODY, NARODNI PODNIK. Nov. 13, 1948 [Nov. 19, 1947] , No. 29538/48. Class 87 (ii). In moulding plates and sheets of synthetic resins by polymerizing a liquid monomer or low polymer such as of acrylates, methacrylates or vinyl compounds between glass plates, the shrinkage during polymerization is taken up by supporting the plates in a frame 1, 2 provided with supporting pins 5 and having a fixed side wall 1 and three movable side walls 3, 3<SP>1</SP>, 3" which have resilient gripping faces to define the edges of the synthetic resin sheet and allow the mould plates to move towards each other during shrinkage. The glass plates, held apart by temporary distance strips, are inserted into the frame and gripped by the resilient-faced walls 1, 3 and 3<SP>1</SP>, a strip of impermeable material such as parchment being inserted between the edges of the glass plates and the side walls. The liquid is poured in, the side wall 3<SP>11 </SP>is fitted and polymerization is effected. The mould may be dismantled before polymerization is complete. The screws 4 for adjusting the side walls may be replaced by lever-actuated cams. The resilient facings may be individual to each side wall or may be a strip of rubber wound round the periphery of the glass plates.
Patent GB-684202-A (GB)
Title: Soil-working tools for a rotary soil-working device
IPC: A01B33/08
Filed: 1950-12-04
Abstract: 684,202. Agricultural implements. KELSEY, C. W. Dec. 4, 1950 [Dec. 14, 1949]. Vo. 29605/50. Class 6 (i). A rotary soil-working tool comprises a metal disc so shaped that spaced points around its circumference form a spiral extending throughout the major portion of its periphery. Fhe tool shown in Figs. 1 and 2 is dished as shown and has a central plain portion 7 provided with bolt holes 9 for securing the tool in position. The edge of the tool may be smooth as shown in Figs. 1 and 2, or it may be toothed. In Fig. 8, three toothed tools 26, 27, 28, are mounted at either end of a shaft 18 which is driven by a shaft 15. The shaft 18 is mounted in bearings in a housing 20 which has on each side a rim 22 which forms a bearing for a hub 24 keyed to the shaft. Holes around the flange 33 of each hub receive one end of a pin 35 whose other end fits into a hole of a spacing collar 30 and whose enlarged central portion fits into one of the holes 9 of the tool. The other tools and collars are similarly mounted and an end cap 36 is bolted as shown at 21 to the shaft 18 to hold the tools in place. Removal of the cap permits endwise removal of all the tools and collars. The high points of the three tools are 120 degrees apart.
Patent GB-340563-A (GB)
Title: Improvements in liquid controlled shock absorbers for vehicles
IPC: F16F9/26
Filed: 1929-10-01
Abstract: 340,563. Shock-absorbers. TOWNSEND, C. M., 35, Beeches Road, West Bromwich, and MILLER, W. P., The Croft, Hampton-in-Arden, Warwickshire. Oct. 1, 1929, No. 29663. [Class 108 (iii).] In apparatus of the kind in which a doubleacting piston with an operating connection between its ends works in a double-ended cylinder, the piston is operated by a crank pin on the inner end of a rocker shaft mounted in a detachable bush applied to a side boring breaking into the cylinder. The connected pistons l<2> having cup leathers j<2> work in the cylinder a, the two ends of which are connected by passages d, e, provided with a screwadjusted throttling pin f. The rocker shaft n with crank pin n<2> is off-set slightly from the centre of the cylinders and is oscillated by an external arm q. The crank pin n<2> works in a block m which is slidable transversely in a recess between the pistons l<2>. The assembly including the bush o, the rocker shaft, the crank pin and the operating arm is removable as a unit.
Patent GB-598514-A (GB)
Title: Improvements relating to the manufacture of dithiopyrimidines
IPC: C07D239/58
Filed: 1945-11-07
Abstract: Dithiopyrimidine compounds are obtained by heating a compound of the general formula <FORM:0598514/IV/1> where R is a hydroxy, mercapto or alkylmercapto radical, one R1 is hydroxy and the other R1 is hydrogen, a lower alkyl radical (containing 1-5 carbon atoms) or a phenyl radical and R11 is hydrogen or a lower alkyl radical, with excess of phosphorus pentasulphide in an inert solvent of high boiling point, preferably between 140 DEG  and 185 DEG  C. for 1 1/2 -2\ba1/2 hours in an apparatus provided with mechanical stirring.  In examples: (1) 2-thiouracil or 2 - thio - 4 - hydroxy - 6 - methylpyrimidine is heated with phosphorus pentasulphide in tetrahydronaphthalene to produce 2 : 4-dithiouracil or 2 : 4-dithio-6-methylpyrimidine respectively; (2) 2-thiothymine is treated as in (1) to produce 2 : 4-dithiothymine; (3) uracil, thymine and 2 : 4-dihydroxy-6-methyl-pyrimidine are treated as in (1) to produce dithiouracil, 2 : 4-dithiothymine, 2 : 4 - dithio - 6 - methyl - pyrimidine respectively; (4) 2 - ethylmercapto - 4 - hydroxy - 5 - methyl - pyrimidine and 2 - methylmercapto4 - ethyl - 5 - methyl - 6 - hydroxypyrimidine are treated as in (1) to produce dithiothymine and 2 : 6 - dithio - 4 - ethyl - 5 - methylpyrimidine respectively; (5) 4-phenyl-2-thio-6-hydroxypyrimidine is treated as in (1) to produce 4 - phenyl - 2 : 6 - dithiopyrimidine; (6) 4 - methyl - 2 - thiouracil is heated with phosphorus pentasulphide in tetrahydronaphthalene to produce 4-methyl-2 : 6-dithiouracil.
Patent GB-372689-A (GB)
Title: Improvements in carburettors
IPC: F02N99/00
Filed: 1931-10-27
Abstract: 372,689. Spray carburetters. BOSCH AKT.-GES., R., 4, Militarstr'asse, Stuttgart, Germany. Oct. 27, 1931, No. 29718. Convention date, Nov. 13, 1930. [Class 7 (iii).] An air-inlet shroud or baffle a and a strangler air valve c are secured to the carburetter by a bolt f which forms a pivot about which both the shroud and air valve may be rotated, the construction being such that the strangler and shroud may be removed as a unit without altering their relative positions or that of the strangler spring o. The valve c is formed as a flat slide and has an operating arm m and a lug d which is bent at right-angles and is hinged to the shroud, the portion d providing an abutment for the moving end of the spring o, the fixed end of which is fitted into a split lug g, the member c being slotted to clear this portion of the spring when moved to its operative position ; the closed end of the slot secures the end 'of the spring when the device is removed as a unit from the carburetter. The bolt f may also serve as a clamping screw for securing a fuel jet h, Fig. 4.
Patent GB-465157-A (GB)
Title: Improvements in or relating to the manufacture of methane
IPC: B01J23/755
Filed: 1935-10-29
Abstract: For the production of methane from carbon monoxide and hydrogen a catalyst is prepared by co-precipitating in the cold nickel oxide and alumina, shaping the precipitate, and reducing the nickel oxide.  The alumina may be partly or wholly replaced by another dehydrating or dehydrogenating oxide such as thoria, blue oxide of tungsten, titania, magnesia.  The catalyst may be prepared at low temperatures as described in Specification 354,351.  The methane reaction is preferably effected at 330--400 DEG  C., and at atmospheric or slightly increased pressure.  As reaction mixture may be used either pure gases, or mixtures such as water-gas, or coal gas enriched in carbon monoxide.  The hydrogen is preferably in excess.
Patent GB-173375-A (GB)
Title: Improvements in or relating to fluid spreaders
IPC: B43M11/08
Filed: 1920-10-22
Abstract: 173,375. Ollerenshaw, R. E. Oct. 22, 1920. Reservoir pads.-A liquid-spreader or marking- device comprises a container 1 having one end closed except for one or more laterally-discharging outlets 5, over which is placed a tapered or other elastic tube 6 which projects beyond the end of the container. As shown, the closed end of the container is constituted by a tubular plug 4, the space between the plug and the container being closed by the elastic tube 6. The other end of the container is provided with a rubber or other plug 2 and an end can 3 having, respectively, orifices 9, 10 for admission of air. In a modification, the plug may be covered. by a cap which is inserted in one end of the container, the plug being provided with slot extending to the inner surface and adapted, on turning the cap, to register with a perforation on the container. To facilitate spreading of liquid, the outer edge of the tube 6 may be serrated or provided with radial slits. Specification 3011/88, [Class 31, Cutting &c.], is referred to.
Patent GB-201828-A (GB)
Title: An improved hand tool for use in attaching tickets and the like to textiles or textile articles
IPC: B65C5/06
Filed: 1922-11-02
Abstract: 201,828. Clark, J. G. Nov. 2, 1922. Stapling.-A hand tool for use in opening out the two prongs of a staple by which tickets &c. are attached to textiles &c. comprises arms 3, 4, 5 hinged together after the manner of a pair of pliers and carrying jaws 1. 2. The jaw 1 is formed as a flat metal plate, and in the jaw 2 is mounted a slidable member 9 pressed forwardly by a spring 18 and carrying spring members 10 grooved at 11 to form a hinge for a pair of sheet metal flaps 13, which are constrained normally by the springs 10 to lie in ' V ' formation on either side of the jaw 2. In use, a ticket is attached to the goods to be marked and the flaps 13 entered between the prongs of the staple. On closing the handles 5 the flaps assume the position shown in Fig. 5 under pressure of the jaw 2, thus flattening out the prongs.
Patent GB-341021-A (GB)
IPC: D01D5/04
Filed: 1929-10-03
Abstract: For carrying out the dry spinning of artificial silk by the process in which the solvent carried by the filaments leaving the spinning nozzles is exchanged for a swelling agent for the purpose of causing <PICT:0341021/IV/1> the micell  to be arranged as far as possible in one direction, there is used a spinning cell having at its upper portion in which the spinning nozzles D are situated, means such as a helical gutter R, open to the atmosphere of the cell, for passing through the latter a liquid the vapours of which act as a swelling agent. The cell is divided into a swelling chamber Q and a drying chamber T; and in order to avoid equalization of temperature in the two chambers, the latter may have a larger diameter or a screen B may be fitted between them.  The drying chamber is provided with a heating jacket H, and with inlets and outlets L for drying air. The extent to which the atmosphere of the chamber Q is saturated with the vapour of the swelling agent is controlled by adjusting the temperature of the chamber or of the swelling agent liquid. The speed of the spooling device is so adjusted as to produce a stretching of the filaments, this stretching taking place in the chamber Q.
Patent GB-640044-A (GB)
Title: Improvements in loose leaf binders
IPC: B42F13/28
Filed: 1947-11-11
Abstract: 640,044. Loose-leaf binders. AKTIEBOLAGET GALCO. Nov. 11, 1947, No. 30035. Convention date, Sept. 30, 1941. [Class 146 (i)] In a loose-leaf binder which comprises back portions 1, 2 pivotally connected at 3 and mutually longitudinally displaceable, prongs 7 for the loose-leaves, a locking device to lock the back portions 1, 2 in one or more angular positions consisting in a lock bridge 21 on the back portion 1 and a pawl 11 on the back portion 2, and protecting members rigidly connected to the back portions to strike against each other when closing the binder if the back portions are displaced to thereby protect the locking device and prongs, the protecting members 35, 37 have guiding faces co-operating with one another such that by sliding on one another at the moment of closure they will effect a mutual longitudinal displacement of the back portions 1, 2 into the proper position for closing the binder. The members 35, 37 may be wedge-like, pyramidal or conical pins or plates. As shown the wedge shaped pin 37 secured to a downward flange 38 of the web 22 of one prong attachment 8 may strike against the surface 40 or 39 of a wedge plate 35 secured to the web 36 of the other prong attachment 8 to bring the back portions into position for locking or into a safe position respectively. Two or more pairs of members 35, 37 may be provided. The displacement into proper position may be assisted by a bevelled surface to the front hook 30 of the pawl 11 which will strike against the locking edge 49 of a recess 23 in the bent down flange 24 of the lock bridge 21, the back portions being then locked either by the hook 30 or a second hook 31, the pawl 11 being pivoted about a pin 12 to a bridge 22 and spring urged to the locking position. The Specification as open to inspection under Sect. 91 comprises also a modification in which the lock bridge 21 is formed into the protective member by a pointed extension to cooperate with the bevelled portion of the hook 30 of the pawl 11. In a further construction, the recess 23 in the flange 24 is extended into the top plate of the lock bridge 21 to prevent damage to the pawl and the recess may also extend to the outer edge of the flange 24. A further con. struction provides stop members which abut to stop closing of the binder in the displaced position ; the stop members may comprise blocks on both back halves or an apertured plate on one back portion and posts or pins on the other portion. This subject-matter does not appear in the Specification as accepted.
Patent GB-849962-A (GB)
Title: Improvements in and relating to an alarm more particularly for the protection of safes and like uses
IPC: G08B13/02
Filed: 1958-09-19
Abstract: 849,962. Gravity switches operated by tilting. MARTINEK, G. Sept. 19, 1958 [Sept.25, 1957], No. 30078/58. Class 38 (5). [Also in Group XXXVIII] A gravity operated switch for a theft alarm (see Group XXXVIII) comprises an earthed support 27 at the upper end of which is mounted a bracket 32, insulated from earth by the insulating bush 35, carrying the pendulum 36. The pendulum consists of a conductive rod 37, passing through an earthed bush 30 and having a weight 38 at its lower end. The suspension of the rod is such as to permit movement of the pendulum in any direction, and may consist of for example a universal joint or a hook 39 freely suspended from an S-shaped element 40 suspended from the bracket 32. In order to regulate the alarm after fixing, the bush 35 is movable in a slot perpendicular to the plane of Fig. 2, and the bush 30 is movable in a slot in the plane of Fig. 2, so that centring of the rod in the hole in bush 30 may be obtained.
Patent GB-1319614-A (GB)
Title: Apparatus and process for removing a sulphur oxide from a gaseous mixture containing it
IPC: B01J19/32
Filed: 1970-06-22
Abstract: 1319614 Gas/solid contact SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 22 June 1970 [23 June 1969] 30144/70 Addition to 1154008 Heading B1F [Also in Division Cl] To remove sulphur oxides from a flue gas, the gas is passed down channels 3 so that it can pass through gauze walls 2 to contact a sulphur oxide acceptor which may be copper, copper oxide or an alkali metal oxide and vanadium, supported on gamma-alumina as a carrier.
Patent GB-1049125-A (GB)
Title: Ion pump
IPC: H01J41/20
Filed: 1963-07-30
Abstract: 1,049,125. Ion pumps. CANADIAN PATENTS & DEVELOPMENT Ltd. July 30, 1963 [Aug. 23, 1962], No. 30183/63. Heading H1D. A magnetron-type cold-cathode getter-ion pump is similar in construction to the sputterion pump described in Specification 1,049,124, but has an evaporator 20 and accelerator electrodes 23, on which evaporated material is deposited, in place of a sputter cathode. The envelope of the pump is formed by upper and lower polepieces 7, 8, a wall 13 of stainless steel or other non-magnetic material, a glassto-metal seal 6, and a tubular member 11 for connection to a tubulation of a system to be evacuated. Rings 9 of sheet titanium form a cathode with metal sheets 10, preferably of titanium, covering the faces of the polepieces 7, 8. A cylindrical anode 12 is supported by a rod 15. An evaporator 20 having a heating winding 21 is supported by leads 5 passing through the seal 6. Accelerator electrodes 23 are supported by rods 24 passing through the seal 6. A number of permanent magnets 14 contact the polepieces 7 and 8 which are preferably of mild steel. Three assemblies as shown may be superimposed (Fig. 4, not shown) to provide a pump capable of increased pumping speeds.
Patent GB-1209723-A (GB)
Title: Improvements in or relating to boundary layer air flow
Inventor: MORRIS GEOFFREY WILLIAM
IPC: B64C21/06
Filed: 1969-06-14
Abstract: 1,209,723. Boundary layer control. ROLLSROYCE Ltd. 14 June, 1969, No. 30258/69. Heading F2R. A gas turbine jet propulsion ducted fan engine 22 is supported from an aircraft by a beam 18 which penetrates the fan duct 30 and connects with the engine proper, an outer skin or casing 20 surrounding the beam 18 and the space 34 between them receiving air from the duct 30 and guiding it to a slot-shaped outlet 36 on the beam outer surface downstream of the duct outlet, whereby to re-energize the boundary layer air flow. The beam 18 may be two separate pieces, or may be one member which passes through the aircraft fuselage 10, and in either case forms the central rigid structure of stub wings 14, 16 projecting one from each side of the fuselage 10. Normally the slight obstruction 32 presented by the beam 18 and casing 20 extending across the duct 30 would cause an unacceptable disruption in the fan duct air flow because air would strike the upstream edge of casing 20 and be deflected to either side thereby, thus deflecting adjacent ambient air and so spoiling the aerodynamic efficiency of the duct. Moreover, undesirable pressure fields would be created between the fan blade trailing edges and the upstream edge of casing 20, which would have a hammering effect on the fan blades. However, that portion 20a of the upstream edge of casing 20 which lies across duct 30 is cut back (Fig. 2) so as to remove these pressure fields. Lateral deflection of the fan air is substantially obviated for the cut edge of casing 20 is so thin as to cause little or no deflection of air passing outwardly of it. The air passing through space 34 is caused to expand spanwise of the stub wings 14, 16 by shaping the space 34 such that its cross-sectional area increases in a downstream direction. The expelling of the air through outlet 36 over the full span of the stub wings 14, 16 re-energizes the boundary layer air flow over these wings, causing it to flow smoothly and rapidly, instead of breaking away from the wing upper surface and creating vortices and adverse pressures. In an alternative construction (Fig. 3, not shown), the invention is applied to a pylon by means of which a ducted fan engine is suspended from the under-surface of an aircraft main wing.