baber/WOPTO huggingface dataset:
Patent GB-568859-A (GB)
Title: Improvements in and relating to pilot-operated unloading valves for hydraulic pumps
IPC: F15B11/042
Filed: 1943-09-23
Abstract: 568,859. Hydraulic control gear. TOWLER, J. M., and TOWLER, F. H. Sept. 23, 1943, No. 15608. [Class 69 (ii)] [Also in Group XXVIII] The delivery of pressure liquid from a series of continuously running pumps to the cylinder of a press &c. is controlled by providing for each pump an unloading valve closed by a hydraulic piston or ram against a spring &c. load, and short-circuiting the pump when open, and operating these valves by a pilot pump normally delivering to exhaust, but caused by a control valve to deliver pressure liquid to operate the valve. Two control valves F, G may be used in series, the valve F being actuated by hand to close, in sequence, ports 1 ... 6 leading from the valves 1 ... 6 of the main pumps A, disposed in pairs operated by motors B, to an exhaust line H. This line may be controlled by a valve K allowing all the pumps to be loaded together. The valve G is automatically operated by the delivery from the main pumps under the control of an automatic valve J which may be that described in Specification 566,240. When the pipe-line la of the control valve 1 is closed to exhaust, the pilot pump. E delivers through a pipe 7 and a pipe 27, Fig. 2, to act on a ram 21 and raise the control valve 25 to the position shown, wherein it connects the pump supply 22 to the press &c. inlet connection 23 and cuts off the normally open outlet 24 to exhaust. In this position, the pilot pump discharges through a pipe 29 leading to control valve 2 and a pipe 9 leading to pipe-line 2a. If the line 2a is also closed to exhaust, control valve 2 is operated to load its pump and the exhaust therefrom passes to control valve 3 or pipe 3a, and so on ; the control valve 6 delivers only to exhaust.
Patent GB-130839-A (GB)
Title: Improvements in and relating to Rotary Engines, Rotary Pumps, Air Compressors, and the like.
Inventor: FEUERHEERD ERNEST
IPC: F04C2/10
Filed: 1919-03-14
Abstract: 130,839. Feuerheerd, E. March 14, 1919. Fixed-abutment type; movable-abutment type; valves, distributing etc.; working-fluid supply. - In a rotary pump or engine of the kind comprising two members 1, 2 rotating about different axes, the inner member 1 having projection 3 and the outer member 2 having recesses 4 co-operating with the projections 3, which are one less in number than the recesses, the contour of the projections 3 is made greater than a semi-circle and the entrance gaps to the recesses 4 are formed with straight walls x. Ports 19 in the side plates of the recesses may register in turn with inlet and outlet chambers formed in the end walls of the fixed casing 7. In a modification, the outer member 2 is fixed, the inner member 1 gyrating therein. The two members 1, 2 may be surrounded by additional members having similar functions, and several units may be used in combination. An internal-combustion engine of this type may be supplied by a gas compressor of the same type.
Patent GB-561472-A (GB)
Title: Improvements in or relating to hot water boilers
IPC: F24B1/183
Filed: 1942-11-05
Abstract: 561,472. Hot-water boilers. URE, G. A. Nov. 5, 1942, No. 15650. [Class 64 (i)] A cast metal boiler in a fire- .place, range or stove has the part A exposed to the greatest heat of greater thickness than the wall thickness elsewhere.
Patent GB-562616-A (GB)
Title: Improvements in methods of making luminescent screens
IPC: H01J9/22
Filed: 1942-11-05
Abstract: 562,616. Luminescent materials. HENDERSON, S. T. Nov. 5, 1942, No. 15659. [Class 39 (i)] In a method of making a luminescent screen by settling material on a support from a suspension in a liquid medium, the phosphor used has relatively coarse particles and further material having fine particles is settled on the screen for the purpose of causing the phosphor to adhere to the support. The phosphor may be a sulphide one and the fine particle material may be cadmium sulphide or zinc cadmium sulphide. This latter material may be mixed with the phosphor in a suspending medium and the materials settled together or the two constituents may be settled at separate times. In one example, the fine material is settled from a suspending medium and the phosphor is then added to the same suspending medium and then settled therefrom. In cases in which the screen is formed with more than one phosphor layer, as described for example in Specification 535,947, layers of finely divided material may be settled between the layers of different phosphors. Specification 494,105, [Group XX], also is referred to.
Patent GB-601029-A (GB)
Title: An improved aluminium solder
IPC: B23K35/26
Filed: 1945-06-20
Abstract: A solder for aluminium and aluminium alloys has the following percentage composition: Tin 83, zinc 14, phosphorus .225, copper 1.275, and aluminium 1.5.
Patent GB-615209-A (GB)
Title: Improved moulding compositions
IPC: C08K3/08
Filed: 1945-06-20
Abstract: Mottled articles, of which the individual colours harmonise with each other without showing hard dividing lines or smudging, result when employing moulding compositions obtained by blending together a plurality of different coloured powders each containing a thermosetting resin, a wood flour filler and finely divided metal pigment.  Metal powders known in the trade as "bronzes" are preferred, and best results are obtained by using powders made up of irregularly shaped large particles, e.g. up to 1/2 inch diameter.  A base for the composition is obtained by condensing urea with formaldehyde in molar proportions of 1-1.5 for 2 1/2 to 3 1/2 hours at a pH of 7.5-8 to give a syrup which is mixed with wood flour in the proportions of 306 parts to 208 parts.  The impregnated syrup is dried to a moisture content of 10 per cent and mixed with 0.2 per cent zinc stearate and 0.5 per cent trimethyl phosphate and the mixture malaxated on rolls and broken into 1/4 -\ba1/2 inch flakes; 300 parts of the base are mixed with 15 parts pale gold lac bronze or 15 parts copper bronze.  A similar base is obtained by condensing melamine and formaldehyde in molar ratio of 1 : 3 for 90 mins. at a pH of 6.8 and mixing the syrup with alpha cellulose flock or by mixing 48 parts wood flour, 30 parts phenol novolak, 1,6 part cresylic novolak, 5.42 parts hexa, 2.4 parts lime and 2 parts stearin.  The following pigments are specified: gold and copper bronzes, aluminium powder, Fast Violet R, Fast Blue GS, Rose Ultramarine, Blue Lake 21035.  Specifications 489,467 and 519,298 are referred to.
Patent GB-277932-A (GB)
Title: Process for the recovery of nitrogen and acetone from vinasses and/or molasses
IPC: C01C1/08
Filed: 1927-06-13
Abstract: 277,932. Nouvelles Industries Chimiques, Soc. Anon. Sept. 21, 1926, [Convention date]. Drawings to Specification. Materials for making gas coke, and other products.-Distillery vinasses, and sugar refining molasses are distilled for recovery of nitrogen and acetone in the presence of excess of lime or other alkaline earth (over 50 per cent of the weight of vinasses &c.) and in a current of inert or reducing gases at a pressure approaching or higher than atmospheric and a temperature below 600‹ C. A current of nitrogen, carbon dioxide, hydrogen or methane and saturated or not with water vapour may be employed. The lime is preferably mixed with the material at 100‹ C. The gases obtained from the distillation of the residual nirogenous products after recovery of acetones, ammonia, amines, &c. may be used as the distillation current. In an example 1000 kg. of vinasses at 40‹ BÞ. are mixed with 1000 kg. of lime and the mixture is distilled in a metallic retort having stirring means until a temperature of about 350‹ C. is reached, a circulation of washed gases obtained from the distillation being maintained. The residue consists of a light decolourizing carbon. The Specification as open to inspection under Sect. 91 (3) (a) describes also the addition to the material before distillation of an alkaline earth carbonate such as calcium carbonate, or residues from a previous distillation or a hydroseopie substance such as sawdust. This subject-matter does not appear in the Specification as accepted.
Patent GB-279354-A (GB)
Title: An improved back support for use in a bath
IPC: A47K3/12
Filed: 1927-06-13
Abstract: 279,354. Jewell, A. A., and Wickens, W. J. June 13, 1927. Baths, accessory fittings for.-A back rest comprises a cork pad attached to a metal frame, having portions a, b, Figs. 3 and 5, adapted to engage the edge of a bath or to be received in sockets.
Patent GB-691901-A (GB)
Title: Improvements in or relating to gas-filled electric discharge tubes and circuit arrangements therefor
Inventor: RIDLER DESMOND SYDNEY
IPC: H01J17/48
Filed: 1948-06-11
Abstract: 691,901. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. June 11, 1948, No. 15815/48. Class 40 (iv). [Also in Groups XIX, XL (a), XL (b) and XL (c)] A counter suitable for use as a dial impulse regenerator comprises a cold cathode discharge tube having a plurality of cathodes arranged opposite a common anode A. The working cathodes 1c, 3c, 5c ... are each connected through a resistance capacity network to ground. Sets of alternate transfer electrodes 2c, 6c ... and 4c, 8c ... are respectively commoned and connected via separate impulsing circuits R41, R43, C31 and R42, R44, C32 to a common biasing point. Any well-known means may be provided for applying negative voltage pulses to C31 and C32. If the gap 1C is initially conducting, the first pulse applied to input 1 transfers the glow via the first transfer gap 2C to the second working gap 3C (see Group XL (c)). The second pulse arrives on input 2 and further transfers the glow to gap 5C and so on. The direction in which the glow moves is determined by the position of the next or first pulse in relation to the conduction gap, e.g. if the first pulse arrives on input 1 when 3C is conducting, the glow moves from right to left and if the first pulse arrives on input 2 it moves from left to right. Thus, a digit may be counted in, and when required counted out in reverse, so avoiding the difficulties of working with complementary numbers. In an alternative arrangement alternate working cathodes are commoned and the number of resistance capacity circuits thus reduced to two. The commoning of the working cathodes and of the transfer electrodes is effected inside the tube envelope. There is only one pulse input which is connected to the working cathode and transfer electrode multiples through rectifier circuits, the arrangement being such that the potential across the working cathode leads neutralizes the effect of the incoming counting pulses on one or other of the transfer electrode multiples in turn. A switch is provided to reverse the connections between the rectifiers and the working cathodes when a reversal in the direction of movement of the glow is required. An initial discharge is established across the first gap in the tube by means of a trigger electrode, which may also be used as a probe to give an electrical indication when the glow returns to the first gap. Specifications 636,668, 639,827, 691,946, [all in Group XL (c)], and 691,947, [Group XL (a)], are referred to.
Patent GB-955503-A (GB)
Title: Improvements in or relating to cranes
Inventor: HALLSWORTH ARNOLD
IPC: B66C23/36
Filed: 1959-05-08
Abstract: 955,503. Cranes. STEELS ENGINEERING PRODUCTS Ltd. May 4, 1960 [May 8, 1959], No. 15862/59. Headings B8B and B8H. In a mobile crane 2, which slews on a chassis 1, a load lifting carriage 6 has rollers 7 which are moved up and down guideways in the jib 3 by a hoisting rope-8. Luffing of the jib about a pivot 4 is controlled by a rope 11. To prevent a load 12 swinging, the jib may be luffed backwardly to the chain-dotted position shown against a ram-type buffer 17. In a second embodiment load - supporting eyes 13 are mounted on a sub-frame which is rotatable on the carriage 6 about a vertical axis.
Patent GB-879384-A (GB)
Title: Magneto resistive devices
Inventor: GIBBINS WALTER GEORGE
IPC: H01L43/08
Filed: 1959-05-08
Abstract: 879,384. Magneto-resistive devices. ULTRA ELECTRONICS Ltd. April 21, 1960 [May 8, 1959], No. 15914/59. Class 37. A magneto-resistive device 10 of cylindrical form e.g. of indium antimonide or arsenide with ring electrodes 11, 12 fitted at each end may be suspended in the gap 4 of a pot magnet where the magnetic field is radial with respect to the cylinder axis. The device may be used as a position detector as its resistance varies with the position of the element 10 in the gap, and in this case a permanent magnet may be included in the magnetic circuit, or it may be used to represent a current in coil 6 by a resistance.
Patent GB-714010-A (GB)
Title: Improvements in draughting machines
IPC: B43L13/06
Filed: 1952-06-25
Abstract: 714,010. Draughting-machines. CHAUVELON. A. J. F. June 25, 1952, No. 15938/52. Class 97(3) A draughting machine has a head which comprises three co-axial rotary plates of which the first plate carries straight edges and is fixed to a manually rotatable spindle and is coupled to the second plate, which is freely rotatable about the spindle, by projections provided on one of these plates and spring urged into recesses in the other plate enabling relative stepwise rotation of the first and second plates, while the second plate cooperates with the third plate also freely rotatable about the spindle by a friction clutch which may be coupled and released by means comprising a manually adjustable lever and a cam ring, this cam ring having recesses disposed to set resiliently seated bases, movable between the recesses by said lever, in either of two axially distinct positions corresponding to coupling and release of the clutch, whereby the first plate is rotatable relative to the third plate stepwise when the clutch is coupled and freely when the clutch is released. The machine head shown is connected by a parallel linkage to a bracket for attachment to a drawing board and comprises a first plate 14 to which three mutually perpendicular straight edges are frictionally secured, this plate being fixed to a spindle 22 having an operating knob 23 and a scale 24 cooperating with an index 25 on the third plate 26 to which links 4,5 of the parallel linkage are pivoted on conical pins 27, 28 which are received in recesses in a plate 29. Plates 26, 29 are freely rotatable on spindle 22. Between plate 29 and the third nlate 31, provided with spaced conical recesses 32 for engagement with spring loaded balls 33 on plate 14, is a friction disc 30. This disc is pressed downwardly by spring 42 on to the balls 33 so that plate 14 can only rotate relatively to plate 26 in steps, when a lever 38 carrying balls 39 for engagement in openings in a fixed cam ring 43 is rotated so that balls 39 engage with the openings 45, Fig. 5, in the tops of inclines on the ring 43. When the balls 39 engage with openings 46 in the bottom of the inclines, the friction disc is released and plate 14 can rotate freely.
Patent GB-234309-A (GB)
Title: Improvements in spectacles and eye-glasses
IPC: G02C1/02
Filed: 1924-07-02
Abstract: 234,309. Newbold, H. July 2, 1924. Spectacles; eyeglasses.-The mounts for spectacle and eyeglass lenses comprise lugs c bearing against the opposite surfaces of the lenses and secured thereto by a screw d passing through a hole in the lens and by pins i engaging notches in the periphery. A three-point contact is thus provided. The pins i may be continuations of the bridge and plaquet arms or may be independent thereof. In place of two notches a peripheral slot may be made in the lenses. Specifications 21944/07 and 14839/09 are referred to.
Patent GB-139389-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F3/02
Filed: 1919-06-26
Abstract: 139,389. Swann, W. H. June 26, 1919. Tobacco pipes. - A mouthpiece 1), of wood or other material, extending into the bowl C, is formed with a bevelled end G, and a reduced part J, or a series of longitudinal recesses, in communication with the interior of the bowl, and can be rotated and used in either of the positions shown.
Patent GB-248237-A (GB)
Title: Improvements in tachometers
IPC: G01P3/36
Filed: 1925-06-22
Abstract: 248,237. Eller, F. June 22, 1925. Fluid-drag speed indicators.-In a speed-indicator of the fluid-drag type the impelling vanes 11 are carried by a casing 10 on the driven spindle 9, and the flyer vanes 15 on the spring-restrained pointer spindle 13 are also enclosed by the casing. A distance register 20 which is visible through an opening in a side wall of the outer casing is driven from the spindle 9 by worm gearing and a flexible shaft 30. The spindle may be driven from a wheel of a vehicle by a roller and flexible shaft.
Patent GB-119325-A (GB)
Title: Improvements in or relating to Audible Warning or Signal Devices of the Vibratory Diaphragm Type.
Inventor: MONNOT JOHN FERREOL
IPC: G10K9/20
Filed: 1917-11-06
Abstract: 119,325. Monnot, J. F. Nov. 6, 1917. Diaphragm vibrators.-A warning or signal device suitable for large works or on aircraft comprises a number of diaphragms a supported' on a frame or casing b adapted to be rotated relatively to a fixed wheel or cam c. As shown, the casing b is rotated by a shaft d operated by an electric motor or other means or, if the device is for use in connexion with aircraft, from a propeller shaft. According to the Provisional Specification, the casing may be fixed and the wheel rotated, or the casing and wheel may be rotated in opposite directions.
Patent GB-185847-A (GB)
Title: Improvements in and relating to fly-wheels for use as the rotors of magneto-electric machines
IPC: H02K1/27
Filed: 1921-06-13
Abstract: 185,847. British Thomson - Houston Co., Ltd., and Young, A. P. June 13, 1921. Magneto-electric machines.-A fly-wheel for use as the rotor of a magneto-electric machine comprises pole-pieces 1 secured in a ring 2 of non- magnetic material of high tensile strength, permanent magnets 3 co-operating with the polepieces, and a second ring 5 of non-magnetic material of high tensile strength. The rings 2, 5 may be of phosphor bronze, and the magnets may be secured to the laminated pole-pieces by screws 4.
Patent GB-875108-A (GB)
Title: Spinning of polypropylene
Inventor: ROBERTS JOHN FRANCIS LLOYD
IPC: D01F6/04
Filed: 1959-05-12
Abstract: Isotactic polypropylene is melt-spun to yield filaments having number average molecular weight in excess of 20,000 and birefringence less than 10 X 10-3 and the filaments are then drawn at a ratio of at least 2 : 1, preferably at elevated temperatures.  Isotactic polypropylene, which may contain small amounts of atactic polypropylene or of polyethylene, may be spun at from 285 DEG -305 DEG C. and filaments of number average molecular weight between 50,000 and 60,000 wound up at a speed imparting a bire-fringence not exceeding 3 X 10-3, (e.g. at about 1,000 ft./min.), before being drawn to at least 4,5 times their original length, preferably from 4,5-10 times.  Before the extrusion of filaments, the isotactic polypropylene may be subjected to thermal degradation, desirably such that the drop in polymer intrinsic viscosity, measured in tetralin at 135 DEG C., is at least 1.  In a preferred method, isotactic polypropylene is melted and compressed at about 200 DEG -320 DEG C., preferably in a screw extruder.  Specifications 810,023 and 818,100 are referred to and Specification 828,735 is referred to in the Provisional Specification.
Patent GB-824946-A (GB)
Title: Hydraulic power transmission system, particularly for rail vehicles
IPC: F16H47/07
Filed: 1956-05-25
Abstract: 824,946. Change-speed gear. VOITH G.m.b.H., J. M. May 25, 1956 [May 26, 1955], No. 16301/56. Class 80 (2). [Also in Group XXIX] A change-speed gear is provided in an hydraulic power transmission by at least two turbo-converters and toothed gears, the converter for the lowest speed range being designed for only part of the full engine power. In one form, Fig. 2, a converter I is used for the lowest speed, and for higher tractive forces converters I and II are filled. For the next highest speed converter I is cut out. For changing to the highest speed range, converter II is emptied and the coupling K is filled. Valves A and B control the flow of oil from a pump 17 to the turbo-converters and the coupling. In a second embodiment, Fig. 3, three converters Ia, Ib and II are arranged to take up engine power at speed ratios of 1/ 3/ 2/ 3 and 1:1. In a third embodiment, Fig. 4, the engine 1 drives two converters I, II through a two-stage variable-speed gear 42, 43 and 44, 45 and a clutch 46. The converters take up full engine power when driven via gears 44, 45 but only part of the engine power when driven via gears 42, 43.
Patent GB-686954-A (GB)
Title: Gear cutting machine and cutter unit
IPC: B23F21/26
Filed: 1951-07-11
Abstract: 686,954. Gear-cutting. GLEASON WORKS. July 11, 1951 [July 29, 1950], No. 16402/51. Class 83 (iii). A gear-cutting tool unit 13 comprises a rotatable core 47, a plurality of blade-carrying elements 1-28 adapted to seat on the core for rotation as a unit therewith, and means for guiding the elements to and from seating engagement on the core during each operating cycle. For cutting non-generated spiral bevel or hypoid gears, the blades comprise a series of roughing blades 14 separated by a plain link 20 from side-finishing blades 14<SP>1</SP> which, in turn, are separated from final finishing blades 14<SP>11</SP>. Other arrangements of blades may be employed. The elements are pressed against the core during cutting by hydraulically-operated rollers 79, the force on the cutter spindle being counteracted by other hydraulically-operated rollers 98. The tool unit 13 is angularly adjusted about the axis of the spindle to which the core 47 is bolted by means of a pinion engaging with an internal gear on a ring 25. The ring 25 is angularly adjustable about an axis 28 on a member 27 adjustable along slideways 36 formed on a head 35. The spindle is rotated by a motor 38. The blades 14 are formed to complete a tooth-space in one revolution of the blade-carrying chain. The work G is stationary during cutting and is indexed when the two plain links 27, 28 are passing through the cutting section. The work is adjustable along its axis on ways 17, around arcuate guideways 22 and along longitudinal guideways 24. If the blades 14 are of equal height, the workpiece may be fed along the ways 17 or 24 during cutting.
Patent GB-102264-A (GB)
Title: Improvements in or relating to Light Reflectors for use in High Speed Submarine Cable Telegraphy.
Inventor: DIXON THOMAS BULLITT
IPC: H04L25/26
Filed: 1916-02-19
Abstract: 102,264. Dixon, T. B. July 19, 1915, [Convention date]. Selenium-cell and like optically-sensitive relays. -The mirror of a moving-coil instrument operating in conjunction with a selenium or like cell as a relay for a telegraph receiver, is divided into separately-mounted sections which are harnessed together and to the moving coil, and adjustments are provided for varying the tension of the mirror suspension and the angular and lateral positions of the mirror segments. In the arrangement shown in Fig. 1, the mirror is divided into a number of separately-mounted sections 1<b> and an end section 1<bx>, harnessed together by fibres 31, Fig. 2, and to the moving coil 16<a>, Fig. 4, by fibres 26. The segment 1<bx> is suspended by a fibre 13 mounted on an adjustable bracket 20, and two fibres 12 which pass over grooved cylinders 22 mounted in a revoluble barrel 23. The barrel 23 is rotated by worm-gearing 24 to vary the angular position of the mirror. The bracket 20 is mounted on a standard 19 adapted to be rotated about a pin 29 to vary the lateral position of the mirror.