baber/WOPTO huggingface dataset:
Patent GB-647211-A (GB)
Title: Improvements in or relating to pneumatic pressure operated control systems for aircraft
Inventor: TREGANOWAN BERNARD ERIC
IPC: B64C25/22
Filed: 1947-08-20
Abstract: 647,211. Pneumatic single-stroke apparatus. ELECTRO-HYDRAULICS, Ltd. Aug. 20, 1947, No. 23127. [Class 8(ii)] A pneumatic pressure operated jack control system comprises an alternative supply 10, Fig. 1, of pneumatic pressure capable of being placed in communication with both sides of the jack piston 7 by an alternative operation valve 11 and alternative supply lines 12, 13, 15; the line 13 to one side of the piston being unrestricted, whilst the line 15 to the other side includes a restrictor 14. To retract the piston 7 using the normal pressure source, air from an accumulator 1 traverses a selector valve 3 and a duct 4 to depress a piston 81 of a shuttle valve 8 and gain access to the retraction side of the piston. Air on the upper, i.e. the extension side is exhausted through a valve 9, a line 5 and a port 6. In the event of failure of the accumulator 1 and using the alternative pressure supply to effect extension, air from the accumulator traverses the valve 11, line 13 and valve 8 to the retraction side of the piston 7, and simultaneously but at a slower rate air traverses the restrictor 14, line 15 and valve 9 to build up an equal pressure on the extension side of the piston and extends the same by differential action. In a modification and using the normal supply source 1, Fig. 4, to effect extension, air leaving the valve 8 traverses ducts 93, 94 the valve 9. a duct 97 to displace a piston 22 connected by a rod 20 to a piston 21 of larger cross-section of a shuttle control valve 16 to allow the air to traverse a duct 98 to the retraction side of the piston 7. Simultaneously but at slower rate air traverses the restrictor 14 and line 15 to build up an equal pressure on the extension side of the piston 7 and also on the piston 21 to displace the latter to its former position and thereby connect the retraction side of the piston 7 to exhaust through the line 98 and an exhaust port 18 and thus render the piston 7 free to be extended. When using the alternative pressure .supply 10 to effect extension air displaces the piston 81 of valve 8 to gain access to the line 93 after which the action is as described using the normal air supply.
Patent GB-922227-A (GB)
Title: Automatic pressure control valve
IPC: F16K31/363
Filed: 1959-07-06
Abstract: 922,227. Fluid-pressure servomotor control systems; valves. THORNHILL-CRAVER CO. Inc. July 6, 1959 [May 18, 1959], 23156/59. Class 135. A valve suitable for use in petroleum well-head equipment and arranged to close in the vent of excessive downstream pressure or in the event of excessive drop of pressure on the downstream side due, e.g. to pipe breakage comprises a main valve member 15 coacting with a seat 14 and actuated by a differential piston 24, a chamber 26 at the larger end of which connects through a restriction 33 and pipe 32 with the downstream side of a restriction 11 downstream of the valve, and a chamber 25 at the opposite, smaller end of the piston connects through a passage 29 and a bore 31 in the valve stem with the high pressure side of the valve. If, while the valve is open, the downstream pressure drops unduly the reduction of pressure in the chamber 26 allows the valve to close, and during closure a reduced part 79 of the valve stem moves into line with a vent 78 whereby the pressure in the chamber 26 is reduced quickly. A pilot valve 17 for controlling opening and closing of the main valve is connected through a chamber 48, Fig. 2, and check valve 60 with the chamber 25 and through a pipe 38 with the chamber 26. When the movable member of the pilot valve, which is held against rotation by a projection 58 engaging a slot 59, is moved to the left by a nut 56 driven by a hand wheel 57 having a locking screw 62 it opens the check valve 60 and connects the chamber 25 with the pipe 38 and chamber 26 so that high pressure in the latter opens the main valve. The pilot valve member may then be set in the position shown in which the check valve 60 is closed and the pipe 38 is connected through a passage 51 with pressure relief means, 39, e.g. a frangible disc, so that an excessive rise of pressure downstream of the main valve and acting in the chamber 26 will be released from the latter to allow the main valve to close. The main valve may also be closed by operation of the pilot valve member to the right so that it vents the pipe 38 through an opening 52. The position of the pilot valve member is indicated by means 61. Alternatively, the hand wheel may be geared to an electric motor for remote control and the pilot valve position indicated by lamps.
Patent GB-1334179-A (GB)
Title: Apparatus for producing a low distortion pulse width modulated inverter output
IPC: H02M7/539
Filed: 1971-04-19
Abstract: 1334179 Inductors WESTINGHOUSE ELECTRIC CORP 19 April 1971 [26 Feb 1970] 23212/71 Heading HIT [Also in Division H2] In an inverter (see Division H2) two transistors are intercoupled by means of an AndrÚ choke having two similar windings of bifilar Litzendraht wire and arranged to be of a "swinging" type in which the inductance is reduced by the fundamental frequency of the output current.
Patent GB-337395-A (GB)
Title: Improvements in the production of pure sulphur
IPC: C01B17/06
Filed: 1929-07-29
Abstract: 337,395. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 29, 1929. Sulphur.-In the production of sulphur by the decomposition of ammonium sulphide solutions at temperatures above the melting point of sulphur the decomposition is effected in the presence of adsorbent substances such as silica gel, aluminium hydroxide, magnesium hydroxide, zinc hydroxide, zinc sulphide or other finely pulverized substances or raw cellulose fibre. The mixture of polysulphide solution and adsorbent substance may be treated in countercurrent with steam in a decomposition column under a pressure of one and a half atmospheres. The adsorbent substances should be more or less colourless so that the sulphur may not be coloured by minute quantities thereof. Specifications 269,546 and 323,919 are referred to.
Patent GB-577557-A (GB)
Title: Stackers for slicing machines
IPC: B26D7/32
Filed: 1943-03-31
Abstract: 577,557. Slicing-machines. WAAGE, J. J. March 31, 1943, No. 23314/44. Convention date, March 28, 1942. Divided out of 565,819. [Class 28 (ii)] In a slicing-machine as described in Specification 565,819 in which a block of food &c, in a sliding holder 12 is reciprocated by hand against a rotating disc knife 10 and the slices fall on a tray 16 which also reciprocates with the holder 12, the tray 16 is carried on the outer part of a two-part carrier arm 18 so that the outer part with the tray can be quickly detached and removed to allow such articles as cabbages to be cut. Figs. 10 and 11 show the connection joining the two parts of the arm 18 together in which a dowel pin 61 engages in a recess 62, and a keeper pin 60 engages a latch hook 59, by rotation of one part relative to the other. A spring pressed auxiliary latch 63 engages the top of the hooked latch 59 to prevent accidental release. A finger trigger 64 of the latch 63 allows release so that the outer arm can be rotated to unlatch it from the arm 18 to remove the tray 16 &c. The arm 18 is mounted on a hanger 20. Fig. 1, slidable on shafts 13 and 14 and reciprocated by hand and carrying the food holder 12 and the slice receiving tray 16. As the tray 16 descends step by step one thickness at a time as in Specification 565,819. the tray is maintained level by the pantograph mechanism comprising the flange 54, Fig. 1, of the tray holder which abuts against a rod 55 while its under part is being pulled by a spring 67. The tray is adjusted level by a screw 66 moving the auxiliary rod 65 abutting against the rod 55. Specification 577,558 also is referred to.
Patent GB-179112-A (GB)
Title: An improved handle for carrying bags, trunks and the like
IPC: A45C13/26
Filed: 1921-09-03
Abstract: 179,112. Phillips, P. Sept. 3, 1921. No Patent granted (Sealing fee not paid). Bags; suit cases.-The handle g, Fig. 2, of a bag, suit-case, &c. is attached by a pair of loops f to hooks e, Fig. 3, pivoted to brackets c secured in place by slides b ou the upper side of the mouth frame a, so that when not in use for carrying the bag &c. the handle can be turned inside. The hooks e are curved so as to engage over the arc-shaped slides h when the handle is in the carrying position.
Patent GB-511561-A (GB)
Title: A new or improved body for a road or rail vehicle
IPC: E04C2/26
Filed: 1938-08-10
Abstract: 511,561. Vehicle bodies. LEVER BROS. & UNILEVER, Ltd., and WALTON, J. B. Aug. 10, 1938, No. 23619. [Classes 103 (iv) and 108 (i)] A rail or road vehicle body is built up of a framework to which is secured a covering of wire netting forming a support for a layer of waterproof sheet material, such as felt-covered cardboard. In the construction of motor lorry body shown the framework comprises a number of spaced transverse hoops 3 connected by longitudinals 13 - - - - 18, of which the upper longitudinal 13 is continuous throughout the length of the body. The wire netting covering extends on each side from above the longitudinal 15 over the roof, while below the longitudinal 15 to the lower angle longitudinal 17 the framework is covered by metal plates 44. In addition, a series of longitudinal slats 24 is secured to the hoops 3 in the interior of the body to prevent the load from damaging the covering. The wire netting is applied in transverse strips having a width equal to one or more spaces between the hoops 3, and is secured to the hoops by looping the ends of the wires over framing wires 32, Fig. 6, and clamping the edges by means of plates or washers 33 and screws 34 passing into wooden blocks 35 in the channel hoops 3. At their ends the netting strips are secured by a longitudinal beading 39 fixed to wooden blocks 40, while the lower edges of the metal sheets 44 are covered by a beading 45. The felt-covered cardboard is also applied in transverse strips with the felt outermost covered with waterproof canvas 43 attached to the hoops 3 by screws 42, Fig. 7, engaging the blocks 35. If desired, the netting may be secured to the frame members by welding, or the netting itself may be formed into barlike form at intervals so as to constitute part of the framework. The front of the loading-space may be separated from the motor-cab by a wire netting partition 28, while the rear thereof may be closed by a roller blind 1 running in guides 2. Specifications 147,613, [CLass 103 (iv)], 372,156 and 449,511 are referred to.
Patent GB-832497-A (GB)
Title: Improvements in or relating to the manufacture of fabric-covered play-balls and their covering fabric
Inventor: BUKALDERS EDWARDS
IPC: A63B39/08
Filed: 1955-08-17
Abstract: 832,497. Finishing fabrics. SLAZENGERS Ltd. Aug. 10, 1956 [Aug. 17, 1955; Sept. 5, 1955], Nos. 23698/55 and 25375/55. Class 42 (1). [Also in Group XV] A method of manufacturing a tennis ball includes the steps of forming a textile or a knitted fabric for the covering material from spun yarn, raising the fibres on one surface to produce an overlay of long fibres of uneven length which are then cropped to an even level to produce a surface pile and cutting from the material panels for fixing to a resilient ball core by means of an -adhesive. The fabric may be woven on a loom having two or more shafts with, for example, 100% cotton yarn for the warp and 85% cross-bred wood and 15% nylon yarn for the weft, the warp forming the greater part of the back 2, Fig. 3, of the fabric while the weft forms a greater part of the front 3. After scouring, the weft is raised on a single or doubleacting machine having wire-covered rollers to produce an overlay of fibres of quarter of an inch or more in length which are piled to a more upstanding position 4a and then cropped to one of the levels 5, 6 or 7. Cropping at levels 6 and 7 is followed by light and heavy milling, respectively. The piling and cropping may be carried out on a machine in which the fabric 9, Fig. 4, is led beneath a guide roller 10 and over a brake roller 11 to a beater 12 from which it passes over guide rollers 13, 14 to an adjustable piling edge 15 co-operating with an adjustable roller 16. An adjustable rotary cutter 19 co-operates with an edge 18 to crop the fabric. Piling may be effected electrostatically and the cropping cutter may form one electrode of a pair for producing the electrostatic field. Alternatively, mechanical and electrostatic piling operations may be employed in conjunction. Figure-eight panels or hemispherical cups of the fabric are secured to the core of the ball with an adhesive such as rubber solution or latex or a flexible resin such as polyester isocyanate which is also employed between the adjacent edges of the panels or cups. After the fabric has been secured to the core, carding, teazling or steaming may be necessary to raise the fibres of the pile again. The fabric may be woven entirely from synthetic fibres. Specifications 466,602, 516,638, 629,484, 774,580 and 774,581 are referred to.
Patent GB-191423-A (GB)
Title: Improvements in and relating to peat products
IPC: C10F7/00
Filed: 1921-09-06
Abstract: 191,423. Dow, F. T. Sept. 6, 1921. Drying, facilitating by forming material into threads.- Macerated peat is forced through a perforated plate and emerges in small streams which break into stick-like fragments of less than one quarter of an inch in diameter, some of which curl slightly as they are discharged. The fragments form a porous mass which is readily penetrated by a drying current. In the apparatus shown, the perforated plate 1 forms the bottom of a trough communicating with a hopper 10 into which the peat is fed, maceration being effected by knives 12 co-operating with grate-bars 11. The peat is forced through the plate by means of spring blades 5 secured in pairs to a reciprocating carrier 8 and each having cutting edges 6 and rubbing faces 7.
Patent GB-1456939-A (GB)
Title: Tuning apparatus for a dye laser
IPC: H01S3/098
Filed: 1974-05-29
Abstract: 1456939 Lasers COHERENT RADIATION 29 May 1974 [30 May 1973] 23899/74 Heading H1C A dye laser is adjustably tuned by rotating a birefringent, e.g. quartz crystal, plate 10, Fig. 4, within the laser resonator 16, 18, the plate being positioned by rotation about an axis such that the plate surface maintains a constant angle # B  with respect to the light generated by a dye cell 20. The dye is pumped by an external laser such as an argon ion laser, the pumping beam 22 being applied to the cell through the combination of a focusing lens 24 and a dichroic resonator mirror 16. The angle # B  is preferably the Brewster's angle for the plate material and the plate is of a thickness such as to suitably narrow the output band width. This width can be further reduced by the provision of additional birefringent plates parallel to the first plate, the plates having a graded thickness ratio such as 1: 4 : 16. A suitable mount for spaced birefringent plates 32, 34, 36 is shown in Fig. 7A, each plate being supported in a cylindrical envelope 42 by a rotatable cup-shaped holder 38 which is locked in position by a set screw 44 when the plate optical axes are suitably aligned. The laser dye may be Rhodamine B, G or 110, sodium fluoroscein or cresyl violet.
Patent GB-597038-A (GB)
Title: Improvements in hairgrips, slides and the like
IPC: A45D8/14
Filed: 1945-02-06
Abstract: 597,038. Hair slides. COLE & CO., Ltd., W. H., and HOLDER, E. T. Feb. 6, 1945, No. 23928/44. [Class 131] A hairgrip comprises a length of wire of flattened' oval or segmental section, bent upon itself at intermediate points to form two parallel legs of duplex form each having a front member 10 and a rear member 11, pressing yieldably into contact for at least a portion of their length. The loop 14 is turned upwards to facilitate the placing of a tress of hair in the grip. In modifications the ends of the length of wire may be turned towards each other or away from the loop 14 which in this case is left straight or the grip may be made from a closed loop. An ornamental plate may be attached to the fronts of the legs 10 or the grip may be cut from a blank so that a flat plate forms the front member.
Patent GB-1222344-A (GB)
Title: Water pistol
IPC: B05B11/04
Filed: 1969-05-12
Abstract: 1,222,344. Water pistol. CHEMTOY CORP. 12 May, 1969 [14 April, 1969], No. 24002/69. Heading A6S. A water pistol comprises (a) a body 11, having a simulated barrel 15, and a pistol grip, 14, (b) a compressible cartridge, 26, including a multiply-pleated bellows to hold the water and having an orifice, 21 at one end, (c) a portion of the barrel open for the insertion of the cartridge and (d) an actuating means for compressing the cartridge when the trigger is pressed, the cartidge being of resilient material to normally bias the bellows in expanded condition. The body may be made of two moulded parts 12 and 13. The bellows are preferably made from low density polyethylene and terminate at the front end in a collar 20 with a nozzle 27 attached thereto. In the first embodiment the cartridge is compressed by means of the skeleton-like piston 31 actuated by the trigger 22. In the second embodiment compression of the trigger 52 causes the arm 61 to move in a slot 71 in the body 57 so compressing the cartridge lying in the portion 56 of the barrel, the nozzle of the cartridge being engageable with the forked end 66 of arm 61.
Patent GB-878394-A (GB)
Title: Arcing chamber for air-break electric circuit-breakers
IPC: H01H33/18
Filed: 1959-07-13
Abstract: 878,394. Arc-rupturing in switches. MASCHINENFABRIK OERLIKON. July 13, 1959 [July 22, 1958], No. 24065/59. Class 38 (5). An air-break switch has an arcchute providing a plurality of series-connected arcs and comprising a plurality of parallel compartments 21 . . . 23 each containing a pair of fixed arcing horns 11 . . . 13 and a co-operating moving bridging contact 3. The connections (indicated at 19, Fig. 3) between arcing horns in adjacent compartments pass in a gas-tight manner through the dividing walls 16, 17. Plates 24, 25 of magnetic material may be provided on the outer walls of the arc-chute and may be associated with a permanent magnet or an electromagnet for blow-out purposes. The dividing walls 16, 17 may have magnetic insertions.
Patent GB-699633-A (GB)
Title: Improvements in or relating to pile fabrics and method of manufacturing same
IPC: D05C17/02
Filed: 1949-09-20
Abstract: 699,633. Sewing &c. RUSSELL - LACEY MFG. CO., Inc. Sept. 20, 1949, No. 24150/49. Class 112. [Also in Group IX] Embroidery. - A reversible pile fabric is formed by inserting at spaced intervals in a base material 73 doubled strands 74 of pile yarn of uniform length to extend from both faces of the material, the strands being cut on the side of the material on which they bridge the intervals, or on both sides, to form chenille ends 76. In the form shown the loops on part of the fabric are inserted from one side and the rest from the other side to produce a pattern, and the parts of the strands on opposite sides of the material are different in length. The fabric is produced by the machine described in Specification 699,657.
Patent GB-517893-A (GB)
Title: Improvements relating to wardrobe travelling cases
IPC: A45C13/03
Filed: 1938-08-17
Abstract: 517,893. Wardrobe travelling cases. BROOKS & CO., Ltd., J. B., and TIPPING, W. E. Aug. 17, 1938, No. .24205. [Class 18] A wardrobe travelling case includes a pivoted frame 5 which is normally housed in the lid of the case but can be swung out so that the garment hangers 7 it carries are supported in an elevated position at the front of the case, and a frame 11 pivoted to the frame 5 can be swung down over the front edge of the case to hold the garments clear thereof or, when the frame 5 is swung back into the lid, the frame 11 is folded down so that hooks 16 carried thereby engage behind studs 14 on the sides of the lid to lock the frame 5 in position. The latter frame 5 is actually pivoted to a further frame 3 which is pivoted inside the lid of the case.' In the extended position shown, the frame 3 is supported on lugs 8 and frame 5 rests against lugs 9 formed on quadrant plates 10 carried by frame 3; and, in the folded position, the plates 10 abut against the studs 14 and the two frames also abut against stops 12. Instead of hooks 16, the frame 11 may carry notched plates to engage springs on the lid.
Patent GB-486582-A (GB)
Title: Typewriter with type wheel and normal keyboard
IPC: B41J5/04
Filed: 1936-09-04
Abstract: 486,582. Typewriters. LOEWENBUCK, S. Sept. 4, 1936, No. 24217. Convention date, Sept. 5, 1935. [Class 100 (iv)] Type-wheel actions.-A spring for swinging the type-wheel against the platen is automatically tensioned, each time a key is struck, by means in connection with the carriage. The carriage may be arranged also to operate means for swinging backwards the type-wheel and restoring it to normal angular position. In the machine shown in Figs. 1 and 1a, the shaft 48 of the typewheel 10 is mounted in a rocking yoke 47 and is provided with a pinion 56 meshing with a sector 25 which is connected by links 23 to rocking plates 17, 18 and has pin-and-slot connection 11 with a slide 27. Key-bars 32 sliding in combs 50 are each formed with a lug 54 for engaging the plate 17 or 18 and a lug 53 for engaging one of a series of stops 49 on the slide 27. The stops and lugs are so arranged that each stop can co-operate with any one of four lugs. The carriage 41 is propelled by a spring drum 39 and is associated with letterspacing mechanism comprising a ratchet-wheel 33 co-operating with interconnected dogs 4, 5. The dog 4 is connected by a link 3 to a universal bar 2 in the path of the key-bars. The dog 5 is connected by a lever 6 to a slide 19 which is formed with a slot 67 engaging the shaft 48, and is connected to a spring 57. The yoke 47 is connected to a spring 45 which tends to swing the shaft and type-wheel towards the platen 43, movement being normally prevented by a catch 37 which co-operates with a finger 46 on the yoke 47. When any key 36 is depressed, the universal bar 2 is rocked, the dog 4 engages the ratchet-wheel, the dog 5 is released, and the slide 19 is pulled forwards by the spring 57. Simultaneously, one of the plates 17, 18 is rocked, and the type-wheel is rotated, to effect type-selection, until the lug 53 engages the associated stop 49. On release of the key, the link 3 returns, a bell-crank 38 thereon trips the catch 37, and the spring 45 swings the typewheel for impression. Thereupon, the dog 5 re-engages the ratchet-wheel, the carriage makes a letter-spacing movement, and the slide 19 is returned by means of the lever 6. During return movement of the slide the shaft 48 and type-wheel are swung backwards, the springs 45, 57 are tensioned, and the type-wheel is restored to normal angular position by cooperation of one of a pair of shoulders 23 on the slide with one of a pair of pins 35 on the sector 25. The Specification as open to inspection under Sect. 91 describes also a typewriter similar to that described above but wherein an anchor co-operates for letter-spacing with a rack on the carriage, and the actuating-spring for the type-wheel is connected to a lever carrying a pawl which co-operates with a ratchet-wheel on the carriage-propelling spring drum. The lever actuates a slide provided with forks for rocking the sector gearing with the type-wheel. This subject-matter does not appear in the Specification as accepted.