baber/WOPTO huggingface dataset:
Patent GB-1070275-A (GB)
Title: Hydrodynamic transmission
IPC: F16H47/06
Filed: 1964-07-03
Abstract: 1,070,275. Gear pumps. SVENSKA ROTOR MASKINER HYDROMEKANIK A.B. July 3, 1964 [July 4, 1963], No.27524/64. Heading F1F. [Also in Division F2] Liquid for actuating the clutches and brakes and for filling the torque converter of a variablespeed transmission is supplied by two input driven pumps 228, 230 and 236, 238. The pumps are both of the gear type and the pump 228, 230 is of variable capacity, having its gear 230 mounted by means of bearings on an eccentric portion of a shaft which is adjusted angularly by an arm 255. The wall co-operating with the gear 230 has a portion 258 (see Fig. 2) co-operating with the gear 230 in its maximum displacement position, and a portion 262 co-operating with the gear in its minimum displacement position. The arm 255 is adjusted to reduce the displacement of the pump at increasing engine speeds to effect a substantial saving of power at high speeds. The arm 255 is biased towards its maximum displacement position by a spring 257 (Fig. 13) and is urged towards its minimum displacement position by the pressure at the discharge side of this pump. The pump 228, 230 is a high volume pump supplying liquid at a low pressure determined by a valve 240 to the torque converter and to a servo cylinder 326 controlling the reverse gear sleeve 200. The pump 228, 230 also supplies liquid to the inlet of the pump 236, 238 which delivers a low volume at a high pressure determined by a valve 246 to the clutch and brake servo cylinders. A valve 250 permits the pump 228, 230 to supply liquid direct to the high pressure side of pump 236, 238 for rapid filling of these clutch and brake servos. in the modification of Figs. 23 and 25 the servo liquid supply arrangement is modified, a single variable displacement gear pump 542, 544, Fig. 25, being provided, the displacement which is controlled by a servo cylinder 552 supplied with liquid from the high pressure line 264 through a restriction 556. The servo cylinder communicates, through a line 536, with a variable leak device co-operating with the driven shaft 112, the device increasing the leakage as the output speed increases so that the pump displacement is reduced.
Patent GB-873136-A (GB)
Title: Improvements in butterfly valves
Inventor: WIERZBICKI ALEXANDER
IPC: F16K1/228
Filed: 1957-09-02
Abstract: 873,136. Valves. DEWRANCE & CO. Ltd. Nov. 14, 1958 [Sept. 2, 1957], No. 27527/57. Class 135. A butterfly valve consisting of a disc 2 mounted on a spindle 4 coacts with a seating 12 on a ring 10 which can be moved axially into or away from engagement with the disc 2. The ring 10 is slidable on a tubular part 18 at the inlet of the valve and has welded to it a pair of bellows 22, 40 which are welded at their other ends to the inlet fitting, the chamber 80 enclosed by the bellows being connected through a passage 78 to a valve (not shown) whereby the chamber may be connected to a source of pressure or exhausted to cause the seating ring 10 to be moved relative to the valve disc 2 when the latter is in its closed position. The seating 12 and a corresponding surface 6 on the valve disc are formed of a hard facing material and of conical, spherical or flat formation. A tubular member 85 slightly larger in diameter than the disc 2 is mounted on a member 50 and tends to preserve the stream line nature of the flow when the valve is opened. The rotation of the spindle 4 is limited to a right-angle by co-operation of a quadrant-shaped portion 89 of a fixed plug 87 with a projection 81 at the end of the spindle. The valve housing is fabricated from parts that are welded together to provide fluid-tight joints. In a modification, a seating ring 10 with its associated bellows is arranged on each side of the valve disc and the space between the two seating rings is provided with a connection whereby it may be connected to a fluid-pressure source, an exhausting pump and atmosphere so that when the valve is closed the space may be exhausted to enhance the seal provided between the seating rings and the disc, or may be pressurized to facilitate opening of the valve.
Patent GB-835867-A (GB)
Title: New thioxanthene derivatives and a process for their preparation
IPC: C07D413/04
Filed: 1958-08-27
Abstract: The invention comprises new thioxanthenes of formula <FORM:0835867/IV (b)/1> in which R represents an alkyl or alkoxy radical containing not more than 3 carbon atoms and their pharmaceutically acceptable acid salts.  They may be prepared by reacting in an inert solvent a 2-alkyl or 2-alkoxy thioxanthene, in which the 2-substituent contains not more than 3 carbon atoms, with an alkali metal transferring compound and, simultaneously or subsequently, with a hydrohalic acid ester or arylsulphonic acid ester of 1-methyl-piperidino-3-methanol. Suitable solvents are benzene, toluene, dioxane and anisole. Suitable alkali metal transferring compounds are, for example, an aryl sodium, sodamide, an aryl lithium or an alkyl lithium.  Examples are given of the preparation of compounds in which R is methyl or methoxy in each case using sodium phenyl to form an intermediate sodium compound of the 2-substituted thioxanthene.
Patent GB-883363-A (GB)
Title: Improvements in or relating to notice boards
IPC: G09F15/00
Filed: 1959-08-12
Abstract: 883,363. Notice boards. BEAULU, Y. Aug. 12, 1959 [Nov. 26, 1958; Feb. 18, 1959], No. 27606/59. Class 3(2). In a notice board documents are releasably held against a convex base 1 by wires 5 which are adapted to be lifted from the base 1 by balls 11 co-operating with a frontal groove 10 or a rearwardly-positioned recess 13 as shown respectively in Figs. 4 and 6. In a modification, Fig. 10, the wires 5 are tensioned by a sliding-pivoted bracket 20, 21 which has an operating knob 25 and co-operates with a locking groove 24. The wires may be replaced by tapes, bands or a single transparent foil of a width equal to that of the base.
Patent GB-807873-A (GB)
Title: Improvements in or relating to rail spikes for securing railway rails to sleepers
Inventor: TRAVIS ALFRED
IPC: E01B9/08
Filed: 1954-09-25
Abstract: 807,873. Spikes. MILLS Ltd. J. [Executors of] Sept. 21, 1955 [Sept. 25, 1954], No. 27739/54. Class 89(2). A rail-spike has a looped-head 23, Fig. 1,. ending in an arm 24 for gripping a railflange 26, the arm abutting the flange, after the spike has been driven to a certain extent, at a position 30 spaced from the position 25 of intial engagement of arm and flange. The spike is driven into a sleeper 20 adjacent the edge of the flange with the arm at right-angles to the direction of the rail. A shoulder 32 abuts the flange to limit the extent of driving of the spike. In another arrangement, the loop 23, Fig. 2, extends normal to the shank and the arm 24 lies under the juncture of loop and shank, so that driving is limited by abutment of the loop on the arm. In yet another arrangement, the loop 23, Fig. 5, extends vertically and the arm 24 passes under the shoulder 32 of the loop, to be engaged thereby after the required driving. This arrangement may be incorporated in a spike having two spaced legs, the ends of the arms being interconnected by a bar extending parallel to the plane of the loops. Specifications 611,042, 708,435 and 807,874 are referred to.
Patent GB-656844-A (GB)
Title: Improvements in or relating to devices for controlling electric current circuits by means of switch elements actuated electromagnetically
IPC: H01H33/59
Filed: 1947-10-17
Abstract: 656,844. Electromagnetic switches; sparking preventing in switches. FKG F. KESSELRING GERATEBAU AKT.-GES. Oct. 17, 1947, No. 27881. Convention date, Oct. 18, 1946. [Class 38(v)] An electric switch having an opening time of less than one millisecond has a moving switching element which during the opening movement is subject to a main (contact closing) force, dependent on the alternating current to be switched and an auxiliary (contact opening) force which varies from an initial to a final value in a period which is greater than a half cycle. This enables the switching movement to be initiated at an instant prior to a current zero when the auxiliary force is of sufficient magnitude to overcome the main force. In Fig. 2 the switch has a combined contact and armature 11 movable by an operating member 10 against springs 15, 16. When the member 11 engages fixed contacts and poles pieces 12 13, a circuit is completed from connection C through contacts 12, 11, 13, connection B and coils 14 to connection A. The coils 14 are subsequently shorted by contacts 17, 18 as the operating member 10 moves into its final position. When the switch is opened the operating member 10 is moved to the right and the opening of the contacts 17, 18 causes the coils 14 to be energized to provide the main or holding force tending to keep the contacts 12, 11, 13 closed. As the movement of the member 10 continues, the spring 16 which was in tension is placed in compression with increasing force and overcomes the force set up by the coils 14 when the current in them approaches zero. The contacts are then opened in a time less than one millisecond. In a modification, Fig. 3, the operating member is the armature 31 of an electromagnet, the coil 34 of which is energized to close the switch 22, 21, 23. In this case, when the coil 34 is de-energized the armature 31 is pulled back by a spring 25, a dashpot 37 controlling the speed of movement. The armature 31 and pole pieces 32, 33 serve as the auxiliary switch which when opened removes a short circuit from the coil 24 enabling it to establish the main force acting on the armature and contact member 21. The opening movement of the armature 31 places the spring 26 in compression to open the switch as in the previous example. Specification 644,035, is referred to. The Specification as open to inspection under Sect. 91 also described and illustrated a switch in which normally closed contacts were opened against an A.C. holding coil by a manual operating member tensioning a spring. It also described and illustrated a mechanical contact rectifier in which contacts were opened against an A.C. holding coil by a spring periodically tensioned by a crank driven by a synchronous motor. This subject-matter does not appear in the Specification as accepted.
Patent GB-362043-A (GB)
Title: Improvements in impeller agitator
IPC: B01F27/91
Filed: 1930-09-18
Abstract: 362,043. Mixing liquids. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Dorr Co. ; 247, Park Avenue, New York, U.S.A.) Sept. 18, 1930, No. 27885. [Class 86.] Agitating apparatus of the type in which the liquid materials are fed continuously through a tank in which they are circulated by impelling mechanism is provided with baffles to prevent the liquid passing directly to discharge without passing through the agitation zone. The tank 10, made of reinforced concrete, is provided with an inlet at one side, and an outlet 12 at the other. The liquid is circulated through a tube 13 by means of an impeller 14 mounted on a shaft 15 supported, together with the driving motor 19, on cross beams 17, the lower end of the shaft resting in a bearing supported by a member extending across the tube 13. Vertical partitions 30 are provided which extend from the tube to the walls of the tank to ensure circulation through the tube ; a transverse partition 31 extending across the lower end of the tube may also be provided.
Patent GB-686767-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B61D17/08
Filed: 1949-11-01
Abstract: 686,767. Vehicle bodies. BUDD CO. Nov. 1, 1949 [Nov. 1, 1948; Nov. 1, 1948], Nos. 27918/49 and 27919/49. Class 103 (iv). A vehicle body includes a side wall having a shear panel formed or provided on its outside with horizontally arranged nodes or corrugations spaced apart in a vertical direction, wherein the side portions of said nodes or corrugations are adapted to engage marginal portions of outer trim sheathing or panels and to hold such sheathing or panels in place. Each side wall structure comprises longitudinally spaced pillars 10 connected by window sill members 16, a bottom sill 11 secured to an underframe sill member 13 and a shear panel 17, a belt rail 18 and a rub rail 32. The panel 17 is formed with longitudinally extending nodes 19, the width of each of which is several times smaller than the space between successive nodes. The upper and lower faces of each node are splayed outwardly from the vehicle side to accommodate and retain the lateral edges of removable curved fairing panels 23. The belt rail 18 is formed on its lower portion into an extension 28 which resembles the nodes 19. The rub rail 32 is held in position by the engagement of its upper flange 34 by the cut-off flange 21 of the lowest node 19 and exteriorly secured rivets 36 on its lower flange 35. In alternative methods of construction, Figs. 4-6 (not shown), the nodes 19 are formed separately as top-hat sections spot-welded to the panel 17 to form a closed box. In one form the outer wall of the node is concave instead of convex as shown in Fig. 2 and in another form the upper and lower faces are depressed towards one another in a V-section, the lateral edges of the panels 22 being formed in a similar manner. A method of disguising a damaged node by means of a sprung-on capping piece is described. Specification 661,115 is referred to.
Patent GB-603598-A (GB)
Title: An improved method of and means for condensing corrosive vapours
IPC: B01D5/00
Filed: 1945-10-23
Abstract: <PICT:0603598/III/1> Corrosive vapours, such as phenols, are condensed in a metal, reflux-type, coil condenser using a cooling fluid having a temperature such that the temperature of the coil walls is maintained below the solidification temperature of the condensate whereby the metal of the coil is lined and protected by a film of solid.  Hot vapours are introduced, through conduit 1, into pipe coil 2 which is immersed in a tank through which cooling liquid passes from inlet 4 to outlet 5.  The temperature of the coil wall, with which the vapours come into contact, is regulated so that some of the vapours condense and solidify as a solid film the thickness of which is self-regulating.  Liquid condensate is then discharged through conduit 3.  A vacuum may be applied at the top of the coil, if desired.
Patent GB-1398183-A (GB)
Title: Electrical edge connector
IPC: H01R12/83
Filed: 1972-06-15
Abstract: 1398183 Printed circuit board edge connectors PLESSEY CO Ltd 23 May 1973 [15 June 1972] 27945/72 Heading H2E An electrical edge connector having a body 11 of insulating material comprises a rear portion 12 from which extends forwardly two parallel walls 13, 14 defining a circuit board receiving space 16, the rear portion 12 pierced by (a) closed passage(s) 19 extending from the back 17 to the front 15 and continuing along wall 13 to the connector front F as a passage 20 open horizontally towards the other wall 14, and accommodating a raised seating 25 with a rear latching surface 27 occupying part of the height of the passage 20, the closed passage 19 having two grooves 23 from the back 17 to the front 15 on the inner side of 19, a contact 29 with resilient bowed contact portion 31 joined to a rigid support portion 30 engaging the inner surface 22 of the closed passage 19 and the seating 25 of the open passage 20, inwardly extending fins 34, which enter grooves 23 and terminate in lugs 35, which abut the front 15 as a tang 36 projecting outwardly engages latching surface 27. The connector construction may be modular, each module comprising a pair of passages, one in each wall. There may be two equal seatings 25 with ramps 28 in passage 20 with between them corridor 26 (Fig. 1, not shown), in which is a tang 36 located centrally on the contact 29. The passage 20 is partly closed by strips 24, which may be engaged by a transverse bar on bowed contact portion 31, which may have a gold plated contact area 37. The contacts may be pitched at 2À5 mm. or less and the body may be made as strip from which lengths may be cut. Preferably 31 has an arcuate cross-section at the contact area 37. The insertion of the contacts from the front is described. Removal is obtained by flattening the tang with a tool poked through passage 19 or corridor (26).
Patent GB-265671-A (GB)
Title: Improvement in pneumatic tyre levers for putting on outer covers without the possibility of pinching or puncturing the inner tubes
IPC: B60C25/02
Filed: 1925-11-07
Abstract: 265,671. Moscrop, J. Nov. 7, 1925. Tyre covers, tools for removing and replacing. - A tool for use in mounting tyre covers comprises a curved arm A adapted to straddle the tyre and formed with a bifurcated end A<1> to engage the rim flange, a pivoted hook B for prising the free edge of the cover into the rim, and a pivoted handle C. Reference has been directed by the Comptroller to Specifications 17966/07, 23077/08, 15341/15, and 159,073.
Patent GB-882029-A (GB)
Title: Waveguide rotating joint
IPC: H01P1/161
Filed: 1959-08-17
Abstract: 882,029. Waveguide switches. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Aug. 17, 1959 [Aug. 19, 1958], No. 28072/59. Class 40(8).  A waveguide rotating joint arrangement comprises two coaxial circular waveguide sections 1, 2 rotatable at 9 relatively to each other about their common axis, two separate waveguides 5, 6 and 7, 8 coupled to each section 1, 2, respectively, and having their longitudinal axes perpendicular to each other and to the axis of the circular waveguide section, and a vane 12, 13 positioned in an axial plane of each of the sections 1, 2 and orientated at an angle of 45 degrees to the longitudinal axes of the waveguides 5, 6 and 7, 8 coupled thereto, whereby coupling is provided between one of the waveguides 5, 6 and one of the waveguides 7, 8 and between the other of the waveguides 5, 6 and the other of the waveguides 7, 8. The waveguides 5, 6, 7 and 8 can be rectangular in cross-section with their major transverse axes parallel to the axis of the. waveguide section 1, 2, or can comprise coaxial lines. The longitudinal axes of the guides 5 and 6 are relatively displaced along the axis of the guide 1 by approximately half a wavelength in the guide of the midpoint of the pass-band that the arrangement is designed to transmit, and the guide section 1 is terminated by a piston 10 at approximately a quarter wavelength from the longitudinal axis of the nearest guide 5 or by a piston comprising several coaxial cylindrical elements of decreasing diameter as described in Specification 870,873. The guides 7, 8 and the piston 11 are similarly arranged. The vanes 12 and 13 are of length equal to one or an odd number of quarter wavelengths. In the arrangement shown each vane 12, 13 lies in a plane which bisects the angle between the guides 5, 6 and 7, 8 respectively, the guide 5 being coupled to the guide 8 and the guide 6 being coupled to the guide 7. The guide 5 can be coupled to the guide 7 and the guide 6 to the guide 8 by rotating one of the vanes through- 90 degrees. The arrangement can be used for the separate supply of two rotating antenna of a radar detection system. If vanes 12 and 13 are supported by a low loss insulator the arrangement functions in the X-band for applied powers greater than 200 kw peak value in each of the channels. In the case of the S-band peak powers higher than 1 mw can be applied.
Patent GB-232515-A (GB)
Title: Improvements in and relating to differential gearing
IPC: F16D41/16
Filed: 1924-11-24
Abstract: 232,515. Stratford, H. C. Nov. 24, 1924. Differential gearing; clutches, ratchet. - Comprises ratchet differential gearing in which toothed wheels 3 on the driven shafts 2 are engaged by pairs of opposed pawls 19, 20 pressed towards the toothed wheels by springs 23 between the pawls, the action being such that the driving member 11 acts positively on a lug 21 of one pawl 20 (say) of each pair to disengage it from its toothed wheel and then through the spring 23 causes the other pawl 19 to engage the wheel and drive it. The pawls are pivoted in pairs on pins 18 carried by cheeks 7 secured together by bolts 10 and forming with the driving member 11 a casing for the gearing. Lugs 21 on the pawls are pressed apart by the springs 23 and project into slots 12 in the driving member 11, thus allowing a slight rotary motion between the driving member and the pawl-carrier. The gearing provides positive driving in both directions and allows either road wheel to over-run the other.
Patent GB-262079-A (GB)
Title: Improvements in or relating to means for bending wires
IPC: H01K3/10
Filed: 1926-11-08
Abstract: 262,079. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Nov. 27, 1925, [Convention date]. Vacuum tubes.-An apparatus for bending the supporting and leading-in wires of thermionic valves, &c., comprises a holder for the stem ends of a series of wires and a number of intersecting or overlapping holders for the free ends of the wires, the two holders being moved relatively to each. other in such a manner that the distance between the bending edges remains the same throughout the operation. In forming a cranked bend a series of wires 5 may be each secured by clamps 1, 2, and passed through an aperture 4 in a member 3, which is pivotally connected by arms 6 of length equal to the distance between the bending edges to three fixed pivots 7 so that during operation its upper surface remains parallel with the sides of the clamps whereas the bending edge thereof moves in a circular path. The apertured ends may be replaced by a slotted jaw 9, Fig. 4, adjustable on bolts 12 and co-operating with a spring-pressed jaw 10 so that the length between the bending edges may be varied. For the same purpose the arm may he adjustable. In forming cranked bends in opposite directions in sets of wires 33 mounted in the stems of thermionic valves, a pair of members 21, 22 mounted in a similar manner to the member 3 and pressed outwards against the action of a spring 34 by a wedge 32 co-operates with a fixed clamp 19. 20. The members are provided with interengaging toothed projections having apertures or clamps to hold the individual wires.
Patent GB-790107-A (GB)
Title: Anti-thumb sucking device
IPC: A61F5/50
Filed: 1956-09-15
Abstract: 790,107. Thumb guards. HOLLAND, R. W. Sept. 15, 1956, No. 28245/56. Class 81 (2). A thumb guard comprises  an adjustable thumb-encircling band 1 and a plurality of bars 6, 7 which are secured to the band 1 at their ends and encage the thumb, the band 1 being split and provided at its ends with collars 9, 10, one of which carries a locking-bar with a hook 12, and the other having a series of slots 13 for receiving the hook 12. The bars 6, 7 arch over the thumb and are joined to one another intermediate their ends.
Patent GB-1328418-A (GB)
Title: Wide frequency pi control
IPC: G05B5/01
Filed: 1971-06-16
Abstract: 1328418 Automatic control systems LANDIS & GYR A G 16 June 1971 [24 June 1970] 28282/71 Heading G3R  In a control system suitable for air conditioning or heating having P I characteristics the frequency range over which these characteristics are effective is extended by the addition of a negative D term produced by a delayed differentiator of reverse positive direction, the values of the amplification and reset time of the low frequency range being chosen to be greater than those of the higher frequencies. A mathematical explanation is given. The magnitude of the D term lies in the range between -1 and 0. Three alternative arrangements of units are given in diagrammatic form, the units comprising field effect transistors.