baber/WOPTO huggingface dataset:
Patent GB-428008-A (GB)
Title: Power unit for individual lubricant guns
IPC: F16N5/02
Filed: 1934-08-08
Abstract: 428,008. Grease guns. CARTER, J. F., Bryan, Ohio, U.S.A. Aug. 8, 1934, No. 22965. [Class 102 (i)] [See also Group XXVI] A power unit, which can be detachably secured to grease guns, is adapted to give a single stroke or repeated reciprocations. The power cylinder 48 is secured to the grease gun 10 by a bayonet joint and a spring catch. The grease gun comprises a cylinder 30 with a plunger 32 and discharge valve 38, the cylinder being supplied from a reservoir 14, having a piston 16 acted on by compressed air admitted through a valve 28. The plunger 32 has an enlarged head 40, acted on by a spring 34, and engaged by the rod 58 of the power piston 56. Compressed air is distributed to the piston 56 by a valve 76 having a double beat head 84. In the position shown, when a valve 70 is held open by means of a trigger 71, air from a hose 60 passes by passages 90, 92, 94 to the piston 56. When the valve head 84 is raised to engage a seating 86 the air exhausts through a sleeve 78. The valve is reciprocated from the piston rod 58 through toggle mechanism 96. The valve 76 can be held open, as shown, by screwing down a stud 114. The apparatus then gives single strokes when the valve 70 is operated.
Patent GB-895487-A (GB)
Title: Improvements in remote control installations for the valves of marine tankers
IPC: F16K31/12
Filed: 1958-07-17
Abstract: 895,487. Valves. SOC. INDUSTRIELLE GENERALE DE MECANIQUE APPLIQUEE. July 17, 1958 [July 17, 1957; Dec. 27, 1957], No. 23026/58. Class 135. A remote control installation for governing valves in ships includes a common source of liquid under pressure supplied e.g. from a pump 10, a jack 4 mechanically connected to each valve 2, an hydraulic distributer 33 associated with each jack, and a device 39 indicating the movement of each valve, the distributers and indicating devices being grouped in a remote central control post, and each indicating device being in line from a distributer to sump or a jack. Service and emergency pumps 10 driven by electric motors 9 actuate the jacks and valves individually through a manually operated two-way piston valve 34 associated with each double-acting jack. As the jack moves, liquid exhausted from one side passes to sump via line 37 containing a spring-loaded ported piston 40 so that the piston rises and the rod protrudes from the cylinder to indicate that the jack is moving, rod 43 receding into the cylinder when the jack ceases moving. When the opening or closing of the valves is completed, the operator deenergizes a solenoid valve 25 whereby accumulators 15 are connected at 18 through the valve 25 to the circuit and the pump 10 is brought under the control of pressure contacts 28, 29 whereby the accumulators maintain a pressure in the circuit between limits P1, P2. If pressure in the system falls to P1 pressure contact 28 starts up the pump and recharges the accumulators and as soon as the pressure reaches P2 pressure contact 29 stops the pumps. If the pressure falls below P1 a pressure contact 31 operates a visible or audible signal and if the pressure rises a certain amount above P2 a release valve 14 opens allowing the liquid to flow to sump and also through another pressure contact gives a visible signal. As the valve closes the weight of the moving parts is balanced by the spring loading of a holding valve 44. Indicator 39 may be replaced by a piston moving in a transparent cylinder, the piston having through passages controlled by oppositely acting spring-loaded ball valves or a spring-centralized piston valve, the indicator then showing the actual position of a valve 2.
Patent GB-480277-A (GB)
Title: Improvements in brakes for aircraft
IPC: B64C25/48
Filed: 1936-08-21
Abstract: 480,277. Aircraft wheel brakes. DUNLOP RUBBER CO., Ltd., BEHARRELL, G. E., WRIGHT, J., and TREVASKIS, H. Aug. 21, 1936, No. 23029. [Class 4] Master cylinders 1, 2, Fig. 1, in which are movable pistons for applying fluid pressure to aircraft wheel brakes 22, 23, are connected by a framework 3 in such manner that their axes are parallel and the piston-rods 4, 5 are interconnected by a cross-member 6 to which a force may be applied by a flexible cable 24 connected to a hand lever, the point of application of the force on cross-member 6 being varied by a connection to the rudder bar or bars of the aircraft to effect differential braking. Cross-member 6 is in two parts side-by-side connected to rods 4, 5 by pin-and-slot means to allow for differential depression of the pistons. The sheath of cable 24 is anchored to framework 3 indirectly through a spring-loaded telescopic connector 25, Fig. 2, and the cable is guided by rollers 30 mid-way between cylinders 2, 3 and connected to axle 11 of rollers 10 engaging the elements of member 6. Axle 11 engages in vertical slots formed in forks 32 secured to a link 9 pivoted at 34 to lever arms provided on dual rudder bars 43 in such manner that operation of either rudder causes displacement of rollers 10 along the member 6. Each cylinder is fed with liquid from a reservoir 12, Fig. 1, which feeds liquid to a channel 15, Fig. 3, extending transversely of frame member 3 and communicating with the space beneath piston 19 by a conduit 16 and transfer port 17 formed in the cylinder wall. The pistons are normally maintained in their outer position by springs 20. In a modification, Fig. 4, cross-member 6 comprises two plates formed with slots 37 for rollers 10, the axle 11 of which is connected by a link 9 to rudder bar lever at 34. Link 9 is arranged so as to lie at right-angles to the cylinder axis when the brakes are applied by the hand lever. In a further modification, axle 11 is displaced by flexible cables connected one on each side of the rudder bar pivot and housed in sheaths each having one abutment on the member 6 and one on the aircraft structure adjacent to the rudder bar. The arrangement of Fig. 1 may be modified for single control by substituting a crank pivoted to the cockpit floor for one rudder bar or by providing a guide for the free end of link 9. Specification 379,529, [Group XXXIV], is referred to.
Patent GB-981269-A (GB)
Title: A process for the purification of organic auxiliary liquids
IPC: B01J47/014
Filed: 1963-06-10
Abstract: A number of organic liquids are purified by treatment with ion exchangers alone or in conjunction with active carbon or aluminium oxide.  Specification 943,177 is referred to.ALSO:Organic auxiliary liquids from the polymerization of formaldehyde are purified by contact with an acid and/or basic and/or a neutral ion exchanger. The liquids may be purified in a continuous manner and recycled to the formaldehyde polymerization which may include the steps of acylating or alkylating the polymer.  Specification 913,177 is referred to.
Patent GB-598726-A (GB)
Title: Improvements in and relating to self-filling fountain pens
IPC: B43K5/06
Filed: 1945-09-07
Abstract: 598,726. Fountain pens. WADE, E. E. S. Sept. 7, 1945, Nos. 23082 and 29938. [Class 146 (iii)] [Also in Group XXVI] The piston of a vacuum self-filling fountain pen is in two parts telescoping into each other and is carried in a plug secured to the rear end of the barrel forming the ink chamber, the two parts being connected by formations on one part engaging helical means in the other for effecting the telescoping movement by rotation of a fingerpiece on the actuating part and the rear end of the ink reservoir has a seat for the rear face of the piston which acts as a seal when the parts are telescoped. In. one form Fig. 3, a hollow piston rod 30 of generally square cross-section, has rounded corners threaded to engage a tapped sleeve 31, and slides in a similarly shaped aperture in an annular projection 19 at the end of the ferrule 2 which is secured into the barrel 1 of the pen. The piston composed of cork or of two leather or fibre discs 33 and a graphited or a paraffin impregnated felt disc 34 screwed into the piston rod 310 by a bolt 32, is normally pressed against the projection 19 to prevent leakage of ink, and the sleeve 31 is screwed down by the finger piece 11, which is plugged after assembly at 37, in which position the flange 15 fits against the ferrule 2. To fill the pen, the sleeve 31 is unscrewed till the tapped portion reaches the limit stop 35, when the piston is operated. A spring may be introduced, either in front of or behind the piston to effect automatic return of the piston during filling, friction washers being mounted at the ends of the spring if desired. In a modification, the finger piece of the actuating member carries a central rod screwing into a hollow piston rod. The projection 19, in which the piston rod slides, may be made separately and cemented to the barrel or ferrule or may be made integral with the barrel. The engaging faces of the projection 19 and piston may be conical in formation. The screw threads of the telescoping members may be replaced by a pin guided by a simple or multiple differential spiral groove having a coarse pitch at the centre for rapid telescoping movement but fine pitch at both ends. Stylo or ordinary nibs may be employed and the piston rod may be cylindrical and rotation prevented by a longitudinal groove engaging a projection or captive ball on the annular projection 19.
Patent GB-886112-A (GB)
Title: Improvements in or relating to electron discharge tubes and circuit arrangements therefor
Inventor: STENNING GEORGE PETER
IPC: H01J17/44
Filed: 1959-07-06
Abstract: 886,112. Dicharge tubes. HIRAC Ltd. July 5, 1960 [July 6, 1959], No. 23152/59. Class 39(1) [Also in Group XL(c)] A gas-filled trigger-type discharge tube comprises a cathode 10, Figs. 3, 5 and an anode 13 disposed on opposite sides of an aperture or passage through a shield structure 12, and a control electrode system 17 disposed in the aperture or passage and comprising at least two electrically separate elements located symmetrically about the cathode-anode path and having a common median plane which is normal to this path. The negative bias potentials applied to the control elements may be such that the tube will strike only when trigger pulses are applied to all the control elements or when a trigger pulse is applied to only one of them (see Group XL (c)). As shown, the control system comprises two metal strips disposed in the passage between two metal shield plates 12, Fig. 3, or between flanges 12d of a shielding box 12, Fig. 5. Alternatively, the control system may comprise two rods disposed in an elongated aperture in a transverse shielding plate. In a further embodiment, three control elements in the form of sections of a cylinder, Fig. 7, or of a ring, are arranged in a cylindrical shield which has its axis coincident with that of cathode 10a and anode 13c. The cathode may be cold or thermionic.
Patent GB-566725-A (GB)
Title: Improvements in or relating to fuel-injection control gear for internal-combustion engines
IPC: F02D1/00
Filed: 1943-03-02
Abstract: 566,725. Fuel - injection systems. AMERY, M. [Representative of AMERY, G.], and AMERY HOLDINGS, Ltd. March 2, 1943, No. 23375/44. Divided out of 566,694. Drawings to Specification. [Class 7 (iii)] The apparatus is identical with that described in Specification 566,694, but the invention consists in the connections between the accelerator pedal 65 (see Specification 566,694) and the distributer 28 on the one hand and the relief valve 99 on the other hand, these connections ensuring that as the accelerator increases the period of the injection as determined by the distributer, it also increases the leverage of the spring 77 of the relief valve to increase the injection pressure. The invention further includes the connection 92, 93 between the starting device 91 and the accelerator pedal, whereby, at starting, the injection pressure acting through the pipe 94 produces a limited displacement of the valve 108 which, through its stem 92 rocks slightly the accelerator pedal and its connections to the distributer to provide injections suitable for idling. Specifications 442,532, 443,124, 443,356, 468,360, 468,372, [Group XXVIII], 501,588, 536,294 and 546,598 also are referred to.
Patent GB-1406929-A (GB)
Title: Adjustable chairs
IPC: A47C7/44
Filed: 1973-05-16
Abstract: 1406929 Adjustable chairs STABILUS GmbH 16 May 1973 [17 May 1972] 23385/73 Heading A4J [Also in Division F2] A chair is provided with a seat 14, the height of which is adjusted by a gas spring 13 and a backrest 43 the rake of which is adjusted by a gas spring 15, adjustment of the two gas springs being effected by rotation of a single operating lever 4 about a horizontal axis 5. Upward movement of the free end of the lever causes depression of the release pin 17 associated with gas spring 13 thereby allowing vertical adjustment of the seat. Downward movement of the free end of the lever causes depression of the release pin 12 associated with gas spring 15 by the abutment of an oblique part 11 on the other end of the lever with a slide 7 which moves along a slideway in a shackle 21 to depress the release pin 12. Gas spring 13 comprises a cylinder (13a) Fig. 8 (not shown) containing a movable piston (13b) and a shut-off valve (13e) situated in a conduit (13f) inter-connecting the chambers on each side of the piston, the shut-off valve being provided with the release pin 17.
Patent GB-919716-A (GB)
Title: Improvements in or relating to machines for sorting articles
Inventor: EDMUNDS IVOR
IPC: B07C3/04
Filed: 1960-07-05
Abstract: 919,716. Sorting letters. VICKERS-ARMSTRONGS (SOUTH MARSTON) Ltd. June 29, 1961 [July 5, 1960], No. 23536/60. Class 78 (1). A machine for sorting letters comprises means for feeding the letters to a viewing position 40, a plurality of fixed stations 58 spaced at intervals around the inner surface of a rotatable drum 44, and normally inoperative removing means 66 (Fig. 5) associated with each station 58 for collecting a letter carried round by the drum. The means 66 are actuated according to the result of viewing, to remove a letter passing round with, and held by centrifugal force to, the drum 44 and allow it to pass to a selected box 4. Letters are supplied to a conveyer 3 and pass to a sloping conveyer 10. When the top letter intercepts a ray from a lamp 15 (Fig. 4), a phototransistor in a housing 17 operates in a circuit (Fig. 6. not shown) to cause a suction head 20 to lift the letter and drop it into a shoot 34 (the letter disengages from the head by engaging a plate 35 through a slot in which the head 20 and its carrying arm 18 passes). The shoot 34 leads to helical members 27, 28 which convey the letter so that it drops into the viewing position 40. Keys 73, 74 are pressed in accordance with the destination of the letter and one of a hundred solenoid-operated deflectors 66 associated with respective traps 58 are operated to engage the inner periphery of the rotating drum 44. The letter is fed into engagement with the latter by rollers 55, 56. When the drum is rotated sufficiently for the letter to reach the deflector 66 it is caused to pass into the associated trap 58. The letter intercepts a light ray passing through a series of holes 78 in the group of five traps in which the trap in question is situated. This operates a phototransistor circuit which in turn operates with a time delay a flap which permits the letter to fall into its predestined box 4. If the phototransistor circuit is not operated by non- arrival of a letter in the selected trap 58 due to a fault in the operation, a light illuminates respective to a group of five traps in which the selected trap is located. After the fault is cleared the circuits are reset by the pressing of a key 75 on the control panel. Should the operator realise that he has pressed the wrong key, after depressing only one key, he can reset the machine by depressing a "cancel" key 76. A reject box can be provided between the last of the traps and the feed rollers 55, 56. This will collect a letter if the deflector 66 appropriate to its destination fails to operate. This necessitates a modification of the circuit diagram (Fig. 7, not shown). The suction head 20 is oscillated between its letter engaging and discharging positions by a motor 29 under the control of a one-way clutch 31. The latter also controls a reciprocating member 32 (Fig. 4) which operates a trap 33 for discharging the letter from the viewing position 40 to the feed rollers 55, 56.
Patent GB-1399972-A (GB)
Title: Electrical signalling device
IPC: F42B3/10
Filed: 1973-05-17
Abstract: 1399972 Blasting ICI AUSTRALIA LTD 17 May 1973 [29 May 1972] 23538/73 Heading E1F [Also in Division G3] Blasting involves the use of an electrical device, in which reception of a transient A by monostable multivibrator IC2 immediately causes firing of a detonator by signal B-B' and the passage of a signal to terminal 2 of AND IC3. Firing of the detonator causes the provision of a signal D, an AND output E thus being present for a predetermined time set by capacitor C3 and variable resistor VR1. When signal E disappears at expiry of the predetermined time interval, monostable IC4 is actuated to immediately fire a further detonator by signal F-F', signal H being emitted, enabling AND IC5 whose output J, after a further predetermined time fires further detonators (not shown). Thus a plurality of detonators can be fired in sequence, with a predetermined time passing between each firing. In the disclosed embodiment, each detonator, or a ring of detonators of nul, or each having a specified intrinsic, firing delay, signals B-B', F-F' triggering corresponding silicon controlled rectifier (SCR1), Fig 5 (not shown), or relay (not shown), to discharge a pre-charged capacitor C6 through the detonator(s) to fire them the magnitude of the firing current, being a measure of whether or not firing has taken place, being monitored by resistance (R13) the voltage across which is used to change the state of monostable IC6, of longer period than monostable IC2, to provide the signal D or H. Hence the non-firing of any detonator, or ring inhibits the firing of subsequent detonators, signal D, or H, not then being emitted. The resulting textured explosion produces a well broken-up copper ore body with minimum vibration. Exemplary delay times and component values are given. Two such explosions may be triggered by a single transient A.
Patent GB-1370076-A (GB)
Title: Appliance for checking the void between a railway rail and the  ballast
IPC: E01B35/00
Filed: 1973-08-17
Abstract: 1370076 Gauging PUDSEY ENG & SUPPLY CO Ltd 17 Aug 1973 [19 May 1972] 23599/72 Heading G1M [Also in Division E2] A device for use in checking the depth of the void between a railway line and the ballast comprises a pair of jaws 1 and 2 for gripping the bottom flange of the rail, a plunger 6 slidably mounted in the jaw 1 and an adjustable spring collar 5 on the plunger 6. Jaw 2 is mounted on a spindle 3 fixed to jaw 1 and is spring-biased towards jaw 1. Jaw 1 may have a single or two horns 1A, and jaw 2 may have two horns 2A, 2B 90 degrees apart around the axis of spindle 3 and axially spaced along the spindle 3, whereby either horn may be selected by rotation of jaw 2. A catch may be provided to lock jaw 2 in its two angular working positions. A spacer 4 keeps the two jaws a minimum distance apart. The jaws, spacer and collar may be of synthetic plastics material, and the spindle and plunger with its foot 6A of stainless steel or surface treated metal. In use, the device is clamped to the rail and the collar 5 set to limit the upward travel of the plunger. As the ballast is built up beneath the rail, a wedge with a multi-stepped calibrated upper face may be slipped below the foot 6A to check when the void depth is within permitted limits.
Patent GB-1216248-A (GB)
Title: Random time signal generators
IPC: G08C17/00
Filed: 1968-05-17
Abstract: 1,216,248. Train control. WESTING- HOUSE AIR BRAKE CO. 17 May, 1968 [25 May, 1967], No. 23616/68. Heading B7N. [Also in Divisions H3 and H4] The possibility of interference between constant-duration control signals transmitted at the same frequency to different receivers, e.g. for the remote control of trains, is reduced by generating each control signal at a random time. Each control signal comprises a coded pulse address followed by digital command signals, and may be transmitted by portable equipment carried by remote train operators, Fig. 1 (not shown). A random time signal generator is shown in Fig. 3 which produces constant duration random time output signals in a lead 49. Each output signal switches a flip-flop 54 for its duration, and so opens an AND gate 37 to enable the output from a diode noise source 31 to pass to a counter 43. The noise signal steps the counter, and is disconnected when the output signal terminates and the bi-stable circuit 54 retores. The counter is then in a random partly filled state, and filling is completed by the application of periodic pulses from a source 32 which pass through an AND gate 38 when the bi-stable circuit 54 restores. When the counter is filled, a pulse passes to an AND gate 46 opened when the flip-flop is in the restored state and causes a one-slot multivibrator 50 to produce the random time output signal.
Patent GB-693090-A (GB)
Title: Improvements in or relating to sieves
IPC: B07B1/46
Filed: 1951-10-11
Abstract: 693,090. Sieves. BRUCKENBAU FLENDER GES. Oct. 11, 1951 [Oct. 14, 1950], No. 23680/51. Class 117 A reciprocating sieve is composed of bars, extending side by side longitudinally of the sieve, which have at least at one end a bent foot part by which the bars are laterally spaced and combined in groups to form longitudinally adjacent sections. The bars 1 may have L-shaped feet 2, Fig. 3, which are seated in laterally disposed rails 3 to which they are fixed by rolling, shrinking, welding &c. The bars 1, 1<SP>1</SP>, Fig. 5, of adjacent sections are interlaced to form mutual spacers. By making the feet, 2, 6, Fig. 8, of different lengths the sieve sections may be stepped and adjacent bars of the same section may have their edges 7, 8 of different heights. Alternatively adjacent bars may be horizontal and inclined, Figs. 10 to 13 (not shown). In other constructions, one end only of each bar has a foot, the other being widened to the gap width and supported on the bars of the succeeding section, Figs. 14 to 17 (not shown), and the gaps in adjacent sections may be aligned, Figs. 18 to 20 (not shown).