baber/WOPTO huggingface dataset:
Patent GB-1393547-A (GB)
Title: Fluid separation apparatus and method
IPC: B01D53/22
Filed: 1972-04-13
Abstract: 1393547 Reverse osmosis DRESSER INDUSTRIES INC 13 April 1972 17160/72 Heading B1X Apparatus for separating at least part of one constituent of a multi-constituent liquid admixture from the remainder of the admixture, comprises a rotatably mounted body member; semi-permeable membrane means mounted on and for rotation with the body member and having a surface extending substantially perpendicular to the axis of rotaion of the body member, the semi-permeable membrane means separating a liquid admixture zone from a separated constituent zone; means for introducing liquid admixture into the liquid admixture zone; means for removing separated constituent from the separated constituent zone; means for removing said remainder of the admixture from the liquid admixture zone; and means for rotating the body member so as to increase, by centrifugal force, the pressure of liquid admixture contained in the liquid admixture zone to an extent sufficient to cause reverse osmosis of said one constituent through said semipermeable membrane means. As applies to the desalination of water, salt water is added through tube 64 to basket 62 containing a stack of annular filters comprising channels 78, semi-permeable membranes 80, supports 82 and fresh-water channels 84. On rotation around axis 61, pressure due to centrifugal force causes part of the water to pass through the membrane from channels 78 to channels 84, the salt being concentrated in the remaining liquid which passes to reservoir 96. Fresh water is ejected by nozzles 70, collected by shroud 72 and passes to reservoir 74. In an alternative arrangement (Fig 7, not shown) bundles of fibres replace the membranes.
Patent GB-732532-A (GB)
Title: Improvements in or relating to frequency responsive speed indicators particularly tachometers
Inventor: LOVEGROVE HENRY JOSEPH
IPC: G01P3/48
Filed: 1951-07-19
Abstract: 732,532. Frequency measurements. SANGAMO WESTON, Ltd. July 11, 1952 [July 19, 1951], No. 17189/51. Class 37. [Also in Group XXXVIII] A high-speed tachometer comprises an A.C. generator driven by a shaft to produce frequencies proportional to the shaft speeds which are converted by modulators and filters to frequencies showing a greater percentage frequency change with shaft speed change than do the output frequencies of the generator; such frequencies being amplified to operate a vibratory armature relay which charges and discharges a condenser to produce an average current in a ratiometer coil which is a function of the relay operating frequency, whereby the ratiometer displays the shaft rotational speed on an expanded scale. A single-phase tachometer generator 10 is driven from the shaft 11 of a jet engine at e.g. 7000-8000 r.p.m., and the output at e.g. 700-800 c.p.s. passes through a high-pass filter 13 of e.g. 650 c/s. cut-off, to a modulator 14 where the input frequency is combined with a constant frequency of e.g. 650 c/s. from e.g. a tuning fork 15, and the constant frequency component and the unwanted sideband are removed from the output by a lowpass filter 16 of e.g..150 c/s. cut-off. The resultant output frequency varying over a range of frequency (e.g. 50 to 150 c/s.) having a greater percentage rate of change with respect to shaft speed than the input frequency from the tachometer generator, is amplified at 17 and energizes a vibrating reed relay 18 whose vibratory contacts 19, 22 when closed charge a condenser 21 from a battery 23 through a resistor 24, and whose contacts 19, 20 when closed discharge the condenser through coil 26 of a moving-coil ratiometer whose other coil 27 is continuously connected to the battery through a resistor 28. The average current from the condenser is proportional to the frequency energizing the relay so that the indicator effectively indicates the shaft speed over an expanded scale range. The entire speed range, e.g. 0-8000 r.p.m., may be indicated by a moving-coil instrument 30 energized by the rectified voltage output of the tachometer generator. Specification 682,534, [Group XXXVIII], is referred to.
Patent GB-297862-A (GB)
Title: Improvements in apparatus for regulating and controlling the output of electric transformers, sub-station equipments, electric generators and the like
Filed: 1927-06-29
Abstract: 297,862. Wilkinson, G. June 29, 1927. Equalizing load, on generator; regulation, automatic.-The load on a generating station is kept substantially constant by having in addition to the usual constant voltage mains 40, 41, Fig. 1, variable voltage mains 6, 7, fed through an induction regulator 8, 9 and supplying heating units &c. A current transformer 24 in conjunction with the heater 23 of a thermal relay, comprising a zinc rod 17 on an " invar '' base 19, operates a contact arm 20 to close either the " boost " or " buck " circuits of a reversible motor 11 operating the induction regulator. The thermal relay could be an expansible strip or wire in tension or it may be formed, as shown in Fig. 2, of a heating element 36 and a capsule 34 containing a liquid or saturated vapour.
Patent GB-671190-A (GB)
Title: Improvements in or relating to steam throttle valve trip mechanism
IPC: F01D21/18
Filed: 1950-07-11
Abstract: 671,190. Fluid-pressure servomotor-control systems. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 11, 1950 [Aug. 27, 1949], No. 17304/50. Class 135. The control valve 12, Fig. 1, of a steam turbine 10 is held open by liquid pressure supplied through a restriction 17 and acting on a piston 19 against a spring 20, the pressure being released to close the valve by a control mechanism 15, in the event of overspeeding of the turbine. The mechanism comprises a chamber 24, Fig. 2, connected by a pipe 16 to the restriction 17 and having an exhaust outlet controlled by a main valve 32 formed on a piston 29 slidable in a cylinder 25, the chamber 38 above the piston being supplied with pressure liquid by leakage past the piston. A pilot valve 40 controls the release of pressure from the chamber 38 and is unseated, when the turbine overspeeds, by a balanced lever 45 acted on by a centrifugal weight 14 carried by the turbine rotor 13. Pressure in the chamber 24, acting on the annular piston area 31 and aided by a spring 48, then raises the main valve to release the pressure in the pipe 16 and permit the valve 12 to close. The main valve is re-seated by a plunger 51, and the pressure in the chamber 38 may be released by manually opening a valve 56.
Patent GB-612931-A (GB)
Title: Improvements in electric secondary batteries
IPC: H01M50/429
Filed: 1946-06-07
Abstract: 612,931. Batteries. SMITH, C. G. June 7, 1946, Nos. 17319 and 24748. [Class 53] The positive electrodes of an accumulator having a zinc negative electrode are immersed in jellified acid electrolyte, the zinc electrode being in liquid electrolyte in a porous envelope. The positive electrodes with the jelly electrolyte may also be enclosed in porous envelopes. Fig. 2 shows an accumulator cell in which all the electrodes are enclosed in envelopes formed by porous partitions 17. The envelopes containing the positive electrodes 11 and jelly electrolyte 18 are sealed with insulating material 19, the remainder of the cell being filled with free acid 21 which fills the central envelope containing the zinc electrode 12. The partitions 17 may be held in position by insulating strips 16 which pass round three sides of the cell or the strips may be grooved to receive the partitions and electrodes. Fig. 6 shows a construction in which the positive electrodes are provided with lugs 23 which engage in grooves in the strips 16, thereby allowing the jelly electrolyte to completely surround the electrodes. The negative electrode may be made of a material coated with zinc and the porous envelopes may-be made of wood, ceramic material or fabric such as cotton webbing.
Patent GB-1276790-A (GB)
Title: Improvements in devices by which antennae are automatically selected from arrays thereof and connected to radio receivers
IPC: H04B7/08
Filed: 1970-04-13
Abstract: 1276790 Diversity reception VAISALA OY 13 April 1970 [20 March 1970] 17407/70 Heading H4L  In a system for selecting from a plurality of aerials that aerial providing the best signal, the aerials A1 to A8 at a ground station receiving frequency-modulated signals from, for example, a weather satellite, are connected via amplifiers 1 to diode switching circuits 2 and 3 co-operating with a search receiver 4 and service receiver 5, respectively. The low-frequency output of receiver 4 is supplied via a high-pass filter 6a passing frequencies above that of the highest modulating frequency, amplifier 6b, rectifier 6c and low-pass filter 6d having a non-linear voltage-dependent time constant, to control a non-linear voltage-to-frequency converter VFC 1  The output of VFC 1  is such that 1Hz represents a good signal, 10Hz a poor signal and 100Hz zero signal and the sequence of signals resulting from the scanning of aerials A1 to A8 is supplied to a comparator 10. A pulse generator PO s , operating at a frequency of 0À1Hz, controls a bi-stable FF 1 , which opens gates 9, 12 alternately, and changeover switch 16 to provide search intervals for sampling the aerials in sequence. The output of VFC 1  is integrated at 10a and supplied via a peak rectifier 10b, amplifier 10c, trigger circuit 10d and gate 12 to a memory 11. The peak rectifier acts as a sequential comparator, its time constant being large compared with the period of a search cycle, so that a pulse is formed by the trigger 10d each time an aerial with an improved signal is detected, this being stored at 11 as a numerical value supplied by counter 7 representing the position of the aerial in the sequence A1 to A8 and the previous number stored being erased. The output of memory 11 via binary-to-decimal converter 14 controls the switches 3 so that the aerial providing the best signal is connected to the receiver 5. During the search cycle the changeover switch 16 controlled by bi-stable FF 1  connects the counter 7 to a binary-todecimal converter 8 connecting the aerials A1 to A8 to the receiver 4 in sequence. In the period between search cycles the switch 16 connects the number stored at 11 to the switching circuit 2 so that the aerial providing the strongest signal is connected to receiver 4. It is stated that the system may be used with a plurality of receivers tuned to different frequencies whereby signals from several satellites may be received by the same aerial array. Each service receiver has its own memory 11 and switching circuit 14, 15, 3, controlled by the counter 7 but additional changeover switches are required which are synchronized with the changeover of the tuning of the common search receiver to co-operate with each of the service receivers in turn.
Patent GB-902434-A (GB)
Title: A method of making a junction type single crystal
IPC: C30B15/20
Filed: 1958-07-25
Abstract: 902,434. Semi-conductor devices. SONY KABUSHIKIKAISHA. July 25, 1958 [July 26, 1957], No. 17579/58. Drawings to Specification. Class 37. A single crystal of germanium containing an NPN junction is made by withdrawing a seed crystal from a melt containing a quantity of donor impurity, e.g. antimony to which are added at intervals quantities of the acceptor boron. The boron, on account of its high distribution coefficient, is rapidly absorbed by the growing crystal to form a P-type layer and is rapidly lost from the melt into the moist atmosphere of hydrogen and/or nitrogen in which the process is carried out in the form of boron nitride and oxide. The melt thus rapidly returns to its original composition after each addition of boron. The P-type layers thus formed are very thin and are therefore suitable for the base zones of transistors.
Patent GB-1254197-A (GB)
Title: Apparatus and method for handling packaging blisters or the like
IPC: B65B41/06
Filed: 1969-04-03
Abstract: 1,254,197. Discharging packaging blisters from a magazine. PACKAGING INDUSTRIES Inc. 3 April, 1969 [4 April, 1968], No. 17586/69. Headings B8C and B8S. An apparatus for discharging packaging blisters 14 from a magazine 16 includes a suction head 20 which is carried by lever 25 pivoted at pivot 22 and given a rocking movement thereabout. Head 20 is carried by a rod 54 pivoted at 65 and passing through a block 52 carried eccentrically by hub 64 driven via gears 62 and 70 by quadrant 72 secured to lever 25. In this way the head 20 is given two movements; a circular movement about pivot 22 and a circular movement about the axis of hub 64 so that it commences (Fig. 5) by the engagement of head 20 with a blister 14. The head 20 then moves round clockwise into the position of Fig. 6, and finally deposits the blister on the conveyer shown.
Patent GB-395866-A (GB)
Title: Improved apparatus for use in the withering of tea
IPC: F26B25/18
Filed: 1932-06-22
Abstract: 395,866. Drying-apparatus. MAIN, J. A., Australia House, Strand, London. June 22, 1932, No. 17670. [Class 34 (ii).] A rack for use in tea withering has each shelf pivotally carried at the back from vertical members common to the shelves, which are provided with strut or link members on individual shelves, so that each shelf can be supported in two or more adjusted positions from one or more of the shelves above or below. In one form, the shelves are pivoted to vertical posts 1, and are connected by hooks 9 engaging in loops 7, or by a wire formed with two loops either of which may engage with a hook carried by the shelf above. The shelves shown in dotted lines are each supported from the shelf above ; the full line position shows each resting on the one beneath. The loops and hooks may be formed in one piece. The Specification also describes the shelves of particular construction which form the subject-matter of Specification 396,009.
Patent GB-901843-A (GB)
Title: Devices for folding garments
IPC: D06F89/02
Filed: 1959-05-25
Abstract: 901,843. Shirt folding machines. FREEMAN, D. A. May 25, 1959 [Feb. 17, 1959], No. 17801/59. Class 94(1). A shirt folding machine, in which the folding is carried out partly by pneumatically operated means and partly by hand has folding arms moved from an outward to an inward position and rack and pinion mechanism for ensuring that the arms are moved in sequence there being a lost motion device which ensures that one arm moves before the other. A shirt is placed on a table 13 and the collar positioned over blocks 17. A pedal is depressed and pneumatic means allows the spring loaded blocks 17 to grip the collar. The pedal is released and folding arms 19, 20 and a folding blade 21 are lowered manually on the shirt. The sleeves are then folded over the arms 19, 20. A hold down arm 22 is then lowered manually and through a linkage connected thereto opens a valve admitting air to a cylinder. The piston of the cylinder is connected to one of two horizontally opposed racks arranged so that movement of one rack to the right causes the other rack to move to the left. These racks cause the folding arms to move through 180 degrees by means of gears and pinions thereon. The tail and body of the shirt are next folded up by hand and a tail clamp 23 is lowered and locked to hold the shirt folded. The pedal is again depressed and the pneumatic means releases the collar mould and further pneumatic means raises the folded shirt to the position shown in Fig. 7. A bag is placed over the shirt and the bag and shirt are removed from the machine. When the pedal is again released the arms 19, 20 are sequentially moved back to their initial positions and the machine is made ready to receive the next shirt. The positions of the arms 19, 20 are adjustable laterally to accommodate garments of various widths.
Patent GB-278810-A (GB)
Title: Improvements relating to the removal of work in shoe-making machines
IPC: A43D23/00
Filed: 1926-07-16
Abstract: 278,810. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). July 16, 1926. Lasting.-A shoe making machine is provided with mechanism for removing the work at the end of the operation. The mechanism described is adapted to be combined with the lasting machine described in Specification 246,582. At the end of the cycle a clamp is automatically swung over the work, lowered to clamp the last and shoe, raised, and swung over a shoot, at which point the clamp is released to allow the work to drop into the shoot. The clamp comprises a pair of plates 574, faced with soft material and mounted with limited universal movement at the ends of arms 568 pivoted at 564 and yieldingly connected to arms 566 on the same pivots. These pivots are carried by a plate 554, also carrying a plate 556 adapted to contact with the rear part of the sole and mounted on a plunger 552 normally depressed by a spring 560. This mechanism is mounted on an arm 546 secured to a post 544 mounted for vertical and turning movements. To produce the vertical movement, a rack 608 is actuated by a pinion 614 and gear segment 618 from a cam shaft 628. The same cam shaft produces the turning movement by a second oscillating gear segment and a splined pinion. At the end of the machine's cycle, a slide 681 moves upwardly in the return of the lasting mechanism to starting position. A pin 684 is provided on this slide which, in this upward movement, actuates a lever 680 to operate a lever 676 on a one-revolution clutch mechanism between a constantly driven worm 648 and the cam shaft 628. A hand lever 696 is provided, to disconnect the levers 680, 676 when the automatic removal of the work is not desired. In the automatic operation, as the arm 546 descends to clamp the shoe, the plates 574 are held apart by a spring 586. When the plate 556 contacts with the shoe, the spring 552 yields and cam surfaces 584 on the still descending arm 546 spread the arms 566 to resiliently close the clamps on the shoe and last. At the limit of the downward movement of the arm 546 a latch 590 snaps into a notch 592 in the plunger 552. The arm 546 then rises and swings over a shoot. At the end of this swing a fixed stop contacts with an arm 606, releasing the latch 590, and allowing the spring 560 to cause the plunger 552 to descend and the clamps to open.
Patent GB-224206-A (GB)
Title: Improved pneumatic horse collar
IPC: B68B3/10
Filed: 1924-07-25
Abstract: 224,206. Neely, J. A., and Henry, R. P. Oct. 29, 1923, [Convention date]. Collars, neck; pads.- A pneumatic tube or tubes 1 is enclosed in a casing composed of strips of rubberized canvas which are cut on the bias, wound in layers 4 on a former and coated with rubber 14. the casing is formed with a reinforced rib 13 of hard rubber and canvas to position the hame. An opening 8 in the casing is covered by a flap 9, and a sleeve or flap 11 having an opening for the valve 2 is inserted between the tube 1 and the slit portion of the casing.
Patent GB-760638-A (GB)
Title: Power driven rotary cultivators
Inventor: BURTON LESLIE JAMES
IPC: A01B33/02
Filed: 1954-06-18
Abstract: 760,638. Agricultural implements. AERO & AUTO, Ltd., C. June 16, 1955 [June 18, 1954], No. 17911/54. Class 6(1). A power driven rotary cultivator of the kind connected to and driven by a tractor and having a plurality of tines 7 rotatable about a shaft 5 which is parallel to the ground-wheel axle of the tractor, is characterized in that a pair of mutually inclined rotatable discs 10 are disposed in front of the tines and in alignment with a gap between the tines on opposite sides of a propeller shaft 4 which drives the shaft 5. The discs 10 are dished and arranged to turn the earth outwardly into the path of the tines 7. The discs are mounted on shafts 8 which are adjustably attached to the casing 3. The tines 7 which are L-shaped are connected to discs 6 and the outer limbs of the tines are alternately directed in opposite directions.
Patent GB-677250-A (GB)
Title: Improvements in and relating to joints or couplings for pipes
IPC: F16L19/08
Filed: 1949-07-08
Abstract: 677,250. Jointing. RAILWAY APPLIANCES CO., Ltd., and CULLEN, A. P. July 10, 1950 [July 8, 1949], No. 18109/49. Class 83 (iv). [Also in Group XXVIII] In a method of applying a compression coupling-jointing ring to the periphery of a pipe, a supporting member is inserted within the pipe and the ring compressed into fluidtight engagement with the pipe. The method is particularly suitable for use with pipes of soft metal or of non-metallic materials such as fibre. A pipe end 2 over which an externallyconed jointing ring 1, serrated on its inner face, is to be shrunk is supported internally by a mandrel 6. A hexagonal sleeve 9 screwed on to an enlarged portion 8 of the mandrel locates the end of the pipe at a shoulder 11 and locates the ring 1 at a shoulder 12 and has a threaded portion 10 on which a conventional jointing nut 3 is screwed to press the serrations on the ring into fluid-tight engagement with the pipe. The mandrel 6 is finally removed by unscrewing with tommy bars 14 while the sleeve 9 is held against rotation.
Patent GB-1169191-A (GB)
Title: Manually Indexable Turret for a Machine Tool
Inventor: HARMAN JULIUS
IPC: B23Q16/10
Filed: 1966-04-27
Abstract: 1,169,191. Turrets. ALFRED HERBERT Ltd. 24 April, 1967 [27 April, 1966], No. 18380/66. Heading B3T. A manually indexable tool turret comprises a tool holder 10, a hub 18 with attached thereto an operating handle 19 and shaft 24, a sole plate 14 into which the shaft 24 is threaded, interengaging toothed clutch parts 85, 88 attached respectively to the tool holder and sole plate and serving to determine accurately the index positions of the tool holder, an indexing ring 29 keyed to the shaft 24 and which on being rotated by the shaft performs three successive functions: (a) radial displacement of plungers 75 in the tool holder to release the latter for vertical lifting movement, (b) rotary drive through a ratchet plunger 57 of a cam ring 30 which through cam action on balls 43 in grooves on the upper face of the sole plate 14 lifts the tool holder to disengage the clutch parts 85, 88 and causes a plunger 80 in the tool holder to engage a drive notch in the index ring and (c) indexing through the plunger 80 of the tool holder to the next index position at which the tool holder drops to allow the clutch parts to re-engage; the final phase of reverse rotation of the handle 19 causes application of axial clamping pressure through the screw threaded engagement of shaft 24 in sole plate 14. Initial movement of the handle 19 in the indexing direction releases this clamping pressure before the three functions referred to above take place.
Patent GB-740884-A (GB)
Title: Improved temperature change detectors and methods and apparatus for the production thereof
IPC: G01K1/02
Filed: 1951-08-03
Abstract: 740,884. Temperature change detectors. GRAVINER MANUFACTURING CO., Ltd., WILKINSON SWORD CO., Ltd., and MATHISEN, A. June 27, 1952 [Aug. 3, 1951], No. 18440/51. Class 36. A temperature change detector comprises an inner conductor a separated from an outer conductor b by refractory insulating spacers distributed throughout its length and embedded in a glass filling c which is in intimate contact with the conductors. The glass may be assembled on the conductor a as short lengths of tubing spaced apart by ceramic beads f, which become embedded in the glass when it is softened. The cable may be made by securing one end of conductor a, carrying glass tube lengths c and ceramic beads f, to bracket 3a, the other end passing over roller 15 to weight 16. Conductor b is secured at one end to bracket 3b and at the other to clamp 13. The glass tube lengths and ceramic beads extend from bracket 3a to beyond the opposite end of conductor b, and pass between rollers 7 and 10. A burner 120 is placed near the bracket 3b to heat the assembly. As the glass softens, rollers 7 and 10 push additional tube lengths and ceramic beads into tube b, and trolley 19 carrying burner 120 is drawn along the assembly by motor 20 so that all the glass tube lengths are melted and fill the space between the conductors. A modified form of apparatus in which the conductor assembly is arranged vertically is also described both in this Specification and in Specification 740,960.