baber/WOPTO huggingface dataset:
Patent GB-703652-A (GB)
Title: Improvements in or relating to tool-carrying chains for use on coal cutters and the like
IPC: E21C25/36
Filed: 1951-05-30
Abstract: 703,652. Pick carrying chains. PROCTOR, S. E., and HOY & CO., Ltd.; A. May 30, 1952 [May 30, 1951], No. 12779/51. Addition to 626,080. Class 68(1) [Also in Group XXV] In a tool-carrying chain such as the coal-cutter chain described in the parent Specification, in which the links are connected by ball-and-socket joints, the socket liner surrounding the ball is in two parts, which are inserted through a bore which may be along or transverse to the axis of the chain. The ball 24 and stem 20 form a separate member. In assembling, the two halves of the liner are placed in position in the socket, with the ball between them, and then welded or riveted in place. The stem 20 is then secured in the upper part 14 of the adjacent link by a rivet 22. Alternatively the ball and stem may be integral with the part 14. A slot 30 through the part 14 allows extrusion of the dust which collects in the spaces between the undersides of the links in which the teeth of the driving sprocket fit.
Patent GB-768975-A (GB)
Title: Ram air cabin pressurizing system
IPC: B64D13/06
Filed: 1955-05-03
Abstract: 768,975. Ventilating aircraft. BOEING AIRPLANE CO. May 3, 1955 [May 20, 1954], No. 12823/55. Class 137 The energy required for supplying pressure air to an aircraft cabin is derived solely from rammed air and the energy in the exhaust cabin air is utilized in assisting to drive the compressing-means. As shown, the ram inlet 10 is divided into two passages 10a, 10b. The air passing through the passage 10b. passes through a first stage compressor 12, a second stage compressor 14 and a heat exchange cooler 16, to the cabin 18. The rammed air from the passage 10a passes to a turbine 20, the exhaust from which is either dumped overboard at 24, according to the regulation of a valve 26, or is passed through the heat exchanger 16 before going overboard. The cabin exhaust duct 28 leads to a turbine 30 which is connected by a shaft 38 with the first stage compressor 12. The valve 26 is controlled automatically, according to cabin temperature, and the supply of rammed air to the second stage compressor 14 is controlled automatically by a valve 34 according to the pressure in the cabin. If required, the first and second stage compressor could be combined into one stage in which case both turbines would be coupled to the compressor. As shown the shaft 40 of the compressor-turbine set 14, 20 is rotatable on the shaft 38 of the first stage compressor, but if required two independent shafts, which could be coupled together in any gear ratio, could be provided. A single compressor could be driven by both turbines through speedchanging gears.
Patent GB-611441-A (GB)
Title: Improvements in mounts for optical elements
IPC: G02B7/02
Filed: 1946-04-29
Abstract: 611,441. Optical mounts. KODAK, Ltd. April 29, 1946, No. 12852. Convention date, April 28, 1945. [Class 97 (i)] A mount for an optical unit containing at least two reflectors comprises means for engaging or supporting the reflectors and composed of a material having a coefficient of thermal expansion less than 2 Î 10<-6> and a shield substantially surrounding the engaging or supporting means, but not rigidly connected thereto composed of a material having a thermal conductivity greater than 0.1 c.g.s. units. In the form shown in Figs. 2 and 3, two reflectors 15 disposed at an angle of 45 degrees to one another, are mounted on a block 16 as of quartz or " Invar " (Registered Trade Mark), which seats in a recess formed in a plate 17 as of aluminium or copper, resilient members 20 being placed between the block 16 and the base of the plate 17. Over block 16 seats a plate 18 also of aluminium or copper and provided with apertures 19 through which the reflectors 15 project. Instead of the resilient members 20 being used, the block 16 may be cemented to the plates 17, 18 over a small central area 21. In other embodiments, the upper and lower edges of the reflectors are cemented to plates as of quartz which are surrounded by a metal shield or the quartz plates and the reflectors may be braided with copper. Curves are given to indicate the effects of expansion with time.
Patent GB-1029964-A (GB)
Title: Improvements in sheet feeding apparatus
Inventor: STREET LESLIE JOHN
IPC: B65H3/46
Filed: 1962-04-04
Abstract: 1,029,964. Feeding sheets. PARNELL & SONS Ltd. April 1, 1963 [April 4, 1962], No. 12880/62. Heading B6B. In apparatus for separating sheets (or cords) from a stack 11, means to ensure that when two sheets are separated simultaneously the second sheet is retained and fed back towards the stack, comprises a fixed suction head 17 which grips the second sheet, and a reversely rotating suction drum 19, Fig. 2 (not shown), incorporated in the head 17 then returns this second sheet towards the stack. The stack 11 is in a magazine 10 resting on a conveyer belt 14 which urges the front face of the magazine towards a pair of belts 13, substantially as described in Specification 1,003,124. The belts 13 are toothed for engagement with pulleys 27, and are provided with longitudinally spaced perforations. Behind the belts at the top edge of the stack 11 are two suction shoes 15, whereby sheets are separated at predetermined intervals and fed upwardly past the suction head 17: the sheets are then fed to a sorting or reading mechanism by the belts 13 and idler rollers 26. The head 17 has a flat face 16 which is recessed centrally to accommodate the suction drum 19, and has suction perforations 23, Fig. 4 (not shown), on its face 16. The drum 19 is secured to a shaft 18 driven continuously by a belt drive in synchronism with the belt 13. A part of the drum is of larger radius than the rest and has the suction perforations therein, so that only this part of the drum projects beyond the face 16 to engage the second sheet separated. The drum and the face 16 are connected through valve ports 24, 25 to a vacuum source, and these can be adjusted relatively to each other and to the perforations in the belts 13 by a simple adjustment of the shaft 18 relative to the drum 19 and the pulley which drives the shaft. A nozzle 29 directs compressed air at right angles to the direction of sheet feed, and between the stack 11 and the head 17. In operation, when the foremost sheet 12 is lifted by the belts 13 to a position opposite the head 17, suction is applied through the valve ports 24, 25 to the perforations 23 in the face 16, so that any second sheet which may be adhering to the first sheet is held to the face 16: this second sheet is then gripped by the reversely rotating suction drum 19 and returned towards the stack 11. A centrifuged fan may provide both the source of vacuum and the compressed air for the apparatus.
Patent GB-921114-A (GB)
Title: Improvements in or relating to rake wheel haymaking machines
IPC: A01D78/00
Filed: 1960-04-11
Abstract: 921,114. Haymaking machines. JOSEF BAUTZ A.G. April 11, 1960 [April 10, 1959], No. 12891/60. Class 6(3). [Also in Group XXXII]. A rake-wheel type hayrake comprises a T shaped structure 6, 7, adapted to be attached to lift links 2, 3 and rotatably supporting a bush 9 on which is mounted a bush 12 acutely angled to a horizontal bush 15, so that the shaft 16 of an attached hayrake may be rotated either in the bush 15 or about a shaft 13. The bush 12 is downwardly inclined so that the working forces on the rake Figs. 1 and 2 (not shown), do not produce a turning moment about the shaft 13. In operation the locking pin 17 is in position and prevents turning of the shaft 16 in the bush 15, but the pin 18 in the bush 12 is removed so that the rake when moving over uneven ground rocks about the shaft 13. The rake may be swung through 180 degrees about the shaft 16 however if the pin 17 is removed, so that a different working operation may be carried out.
Patent GB-1181397-A (GB)
Title: Improvements in or relating to Voltage Stabilising Circuits
IPC: H04N3/18
Filed: 1967-03-20
Abstract: 1,181,397. Rectifying. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 20 March, 1967 [5 April, 1966], No. 12917/67. Heading H2F. [Also in Division G3] The EHT voltage supplied to a television tube 10 is automatically stabilized with variations of beam current by passing the latter through the control winding 11 of a transductor 25 whose working winding 12 is series-connected between a winding 4 of the output transformer 1 and an impedance 13 so that the pulsating voltage appearing at the junction of members 12, 13 varies with the variation of current through the winding 11. This pulsating voltage is passed via a rectifier 14 and a potentiometer 19 to the control grid of a power valve 5 whose gain is thus automatically varied with beam current variation to maintain the EHT voltage constant. The basic bias voltage for the valve 5 is obtained from the circuit comprising members 15, 16, 20 ... 23, the resistor 16 being voltage dependent and being adjusted so that the positive biasing voltage existing by virtue of the transductor when the beam current is zero is compensated. A failure of the voltage applied to the winding 12 or of the rectifier 14 thus does not give rise to a control of the valve 5 which would produce a rise in EHT voltage. In a modification, Fig. 2 (not shown), in which the VDR16 is used to produce the control voltage for valve 5, members 14, 19, 27 are omitted, the signal from the junction of members 12, 13 is fed to the VDR16 and resistor 23 is connected to the grid of valve 5. Winding 4 is centre tapped to earth to form two push-pull windings which form a bridge circuit with the members 12, 13 having zero output when the beam current is zero. The regulating action may be limited at a predetermined point by suitable choice of the characteristic of inductance of winding 12 against control winding current, Fig. 3 (not shown). Other ways of varying the control range of the characteristic comprise connecting an inductor in shunt with the winding 12, adjusting the potentiometer 19, connecting a resistor in parallel with the winding 11, and effecting electrical or permanent magnet type pre-magnetization of the transductor. The transductor may have another control winding responsive to the mains supply voltage. Instead of being supplied by the winding 4, the pulsating voltage may be obtained from other sources of varying voltage.
Patent GB-1514427-A (GB)
Title: Polyesters with monofunctional epoxides
IPC: C08G63/91
Filed: 1976-03-31
Abstract: 1514427 Method of reducing polyester carboxyl group content GOODYEAR TIRE & RUBBER CO 31 March 1976 [2 May 1975 17 Feb 1976] 12935/76 Heading C3R A process for forming a shaped article of a polyester comprises moulding, extruding or spinning a polyester containing, as catalyst an alkali metal salt of carbonic acid or of a carboxylic acid or an alkali metal compound of formula MX where X is hydroxyl, alkoxyl or halide into a shaped article, a monofunctional epoxide being added during the shaping step. The catalyst is preferably lithium or sodium acetate and is used in an amount of from 0À001 to 1% by weight calculated as alkali metal based on the polyester. The epoxide is preferably phenyl glycidyl ether or p-test-butylphenyl glycidyl ether and is used in an amount of from 0À1 to 2% by weight based on the polyester. The polyester is preferably polyethylene terephthalate or polybutylene terephthalate.
Patent GB-254250-A (GB)
Title: Improvements in and relating to weighing apparatus
IPC: G01G21/00
Filed: 1925-03-19
Abstract: 254,250. Hodgson, C. G., and Millars' Machinery Co., Ltd. March 19, 1925. Apparatus fitted to plant for manufacturing road-making materials.- Relates to a weighing hopper for use in plant for manufacturing roadmaking materials, and wherein the plant includes a pair of mixing machines. The weighing hopper has two delivery mouths 4, 5 controlled by doors 8, 9, and is provided with a diverting flap 14 for directing the weighed material to one or other of the mouths and thence to the mixing machines 6, 7. The doors 8, 9 are geared together and are operated simultaneously by a hand' lever 12. The diverting flap 14 is mounted on a spindle 15 and may be turned into the desired position by a key or spanner.
Patent GB-615468-A (GB)
Title: Improvements in cases for radio-receivers and other apparatus comprising a scale
IPC: H03J1/02
Filed: 1946-04-30
Abstract: 615,468. Indicating dials and scales. PHILIPS LAMPS, Ltd. April 30, 1946, No. 12974. Convention date, Jan. 17, 1942. [Class 40 (v)] The at least partly transparent dial for radio or like apparatus is mounted in front of an aperture in the apparatus case and between two protruding borders so that two opposite edges of the dial overlap the edges of the aperture. The Figure shows a radio cabinet having a recessed front panel 2 covered by cloth. An aperture in the panel is covered by a transparent dial 4 which is supported in recesses at the top and bottom and which overlaps the edges 5, 6 of the aperture. By this means the dial is effectively framed, though the edges of the dial may be faceted to increase the effect. An indicating element 9 is provided and the dial may be illuminated. by lamps let into the cabinet above and below the dial.
Patent GB-668705-A (GB)
Title: Filter cartridge
Inventor: CHASE CHARLES B
IPC: B01D46/24
Filed: 1950-05-24
Abstract: 668,705. Filters. FRAM CORPORATION. May 24, 1950. No. 13030/50. Class 46. [Also in Group XXVIII] A filter element comprises a pair of spirally coiled webs of filtering material spaced from each other by an impervious strip at one end of the coil to provide a first spiral space, the convolutions of the pair of webs being in turn spaced by a second impervious strip at the other end of the coil to provide a second spiral space. In addition a corrugated sheet of material occupies most of the remainder of the first spiral space and a narrow corrugated strip is provided in the open end of the second spiral space. A pair of webs 32, 33, Fig. 2, e.g. of treated paper is spirally coiled about an imperforate tubular core 31, the space 62 between the pair being almost filled in an axial direction by a sheet 34 of corrugated aluminium. The remainder of this space is occupied by an impervious sealing strip 35 of soft paper or cardboard which is secured in place by friction or glueing. The 'space 61 between the inner web 33 of one convolution and the outer web 32 of the previous convolution is occupied at the top by a narrow strip 36 of corrugated aluminium, and at the bottom by a narrow strip 40 similar to 35. The spacing members are omitted from the outermost convolution of the completed element to ensure that it fits snugly in a shell 42, Fig. 1. The upper end of the core tube 31 is bent over the inner edge of a cap 50 having an annular series of holes 51, while the lower end of the element is spaced from a lower cap 43 by a plate 44 having upstanding radial fins 45. The unit thus formed is held between gaskets 55 and 56<SP>1</SP> in a casing 11. Liquid to be filtered enters at 24,. passes through holes 51 into a region 53 and thence into the spiral space 61, filters. through web 32 and 33 into the spiral space 62, and collects in a chamber 56. This chamber is in communication with the inside of the core tube 31, which in turn surrounds an outlet tube 13, into which filtered liquid flows when it reaches the level of an outlet aperture 15.
Patent GB-108229-A (GB)
Title: Improvements in Pumps, Air Compressors and the like.
Inventor: HOLLOWAY JOHN
IPC: F04B27/02
Filed: 1916-09-14
Abstract: 108,229. Holloway, J. Sept. 14, 1916. Piston pumps.-Air or other pumps or compressors are provided with pistons differentially movable in the same direction in one cylinder, so that the fluid is compressed or forced between them, and connected to spaced points on an oscillatory element so arranged that the pressures on the pistons are substantially equal and the pistons are substantially balanced when the pressure between them is at its maximum. As shown, a cylinder A has working and companion pistons B, C connected respectively by hollow and solid rods D, E to cross-heads K, L, which in turn are connected at each side of the cylinder by rods H, J to angularly-displaced points on a quadrant F pivoted at G, the quadrant F or the cross-head K being actuated by a prime mover. In the position shown, the pistons are fully separated and are unbalanced, the load being at the minimum. As the quadrant is rocked, the piston B moves faster than and therefore approaches the piston C until the points of connexion of the rods H, J to the quadrant are at equal distances from a vertical plane through the pivot G, when the pressure is at the maximum and the pistons are substantially balanced. Suitable suction and delivery valves are provided, preferably in one of the pistons and in the cylinder wall respectively in the case of an air compressor. The invention may be applied to multiple-stage compressors or pumps and to double-acting pumps with a companion piston on each side of a working piston, the three pistons being connected by rods to quadrants oscillated by a crank and connecting-rod.
Patent GB-1150431-A (GB)
Title: Glass and Other Light-Reflecting and Light-Transmitting Materials
Inventor: DUCHATEAU WILLY
IPC: G02F1/19
Filed: 1966-03-24
Abstract: 1,150,431. Voltage measurement. GLAVERBEL. March 24, 1966 [July 12, 1965], No.13083/66. Heading G1U. [Also in Divisions G3 and H4] Voltage may be measured by using a field developed therefrom to control an electron conducting control layer coated on a light transmitting substrate to modify the light transmitting properties thereof. By measuring the proportion of light incident on the unit which is reflected, the field intensity is determined. The coated substrates may be those used in glazing units (see Division H4). In an example of such a unit Fig. 2, outer glass sheets 10' and 10" are covered by silver films 12' and 12" and SiO layers 13' and 13", layer 13" being covered with the control layer 14 which is of tin oxide (SnO 2 ) containing selenium. The control layer reflects light to a degree depending on the strength of the electric field generated between the films 12' and 12" which are connected to the voltage source 19. The passage of current between the films 12' and 12" through the layer 14 is prevented by insulating layers.13' and 13". As the strength of the electric field is increased, the SnO 2  layer 14 reflects progressively more light, first in the infrared band and then in the visible band. Other embodiments are described in detail (see Division H4). The electric field may be continuous or intermittent and it may be unidirectional or reversible or alternating since the response of the control layer is not necessarily symmetrical. The control layer may embody one or more electrodes or it may actually form an electrode and the unit. may comprise more than one such layer. It is not necessary for measurement purposes for the units to be able to transmit light.
Patent GB-528691-A (GB)
Title: Improvements in or relating to the manufacture of dihalogenobutanes
IPC: C07C17/093
Filed: 1939-05-02
Abstract: 528,691. 1:4-Dihalogenobutanes DU PONT DE NEMOURS & CO., E. I. May 2, 1939, No. 13128. Convention date, May 2, 1938. [Class 2 (iii)] 1:4-Dihalogenobutanes are made by reacting tetramethylene oxide with a hydrohalogen acid in the presence of a dehydrating agent. As dehydrating agents, sulphuric acid and glacial acetic acid are specified; sulphuric acid of 50-67 per cent. strength is preferably employed. When utilizing sulphuric acid, the hydrohalogen acid may be formed in situ by adding an alkali metal halide to the acid. When preparing 1:4-dibromobutane, the solution of hydrobromic acid in aqueous sulphuric acid may be prepared by passing sulphur dioxide into bromine containing a small amount of water: Examples are given of the preparation of 1:4- dichloro- and 1:4-dibromo-butane.
Patent GB-167588-A (GB)
Title: Improved means for warming the radiators and other parts of the water cooling systems of motor cars
IPC: F02N19/10
Filed: 1920-05-12
Abstract: 167,588. Elphick, P. May 12, 1920. Radiators, aircraft, motorcar, and like. - Means for preventing the freezing of the water in the radiators and engine water-jackets of motorcans comprises an electrical heating unit which may be screwed internallv into the radiator in the place usually occupied by the draw-off tap or which, alternatively, may be placed within the pipe leading from the radiator to the engine cylinders. The heating-device may be of any suitable construction, the one described for screwing into the radiator comprising a shell 1 with a nipple attachment 2 adapted to be screwed into the radiator 7, as shown in Fig. 2. Within the shell 1 is a tube 3 lined with mica and containing electric resistance wires 4 connected to a plug 5 for attachment to leads from external mains. Water from the radiator passes through the annular space 6 and is sufficiently warmed thereby to prevent freezing.
Patent GB-150059-A (GB)
Title: Improvements in or relating to wire-bound boxes
IPC: B65D6/18
Filed: 1919-05-26
Abstract: 150,059. Secker, M. E. S. May 26, 1919. Bands, strengthening; lids; knock-down boxes: tampering with, preventing and detecting.-In a wire-bound box, a single wire 11, 15, Fig. 1, is bent to form two parallel binders, the connecting- portion 13 being arranged to constitute one element of a hinge for the lid. The other element of the hinge is formed by wires 21, 22 having extensions 20 adapted to be passed through loops 10 at the ends of the wire 11, 15, in order tc secure the box lid. The wire fastening may be sealed to prevent tampering. In a modification, separate binding-wires are secured to each of the portions 1, 2, 3, 4, Fig. 3, of the box, each of the binding-wires having a portion serving a binge connexion between two parts of the box. Two or more binding-wires, arranged as described, may be secured to each side of the box. Specification 8071/03, [Class 133. Trunks &c.]. is referred to.
Patent GB-530510-A (GB)
Title: Improvements in luminescent materials and in combinations therewith of sources of radiation adapted to excite the materials to luminescence
IPC: C09K11/72
Filed: 1939-05-03
Abstract: 530,510. Luminescent materials. GENERAL ELECTRIC CO., Ltd., McKEAG, A. H., and ROOKSBY, H. P. May 3, 1939, No. 13214. Addition to 495,706 [Group XX] [Class 39 (i)] Luminescent material as described in the parent Specification, contains at least one metal, for example, lead, in addition to cadmium and manganese, and, if magnesium is present, to magnesium, has a crystal structure which is hexagonal but has axes differing substantially but by less than 10 per cent from a 0 =9.7 A.U. and c 0 =6.4 A.U., and has luminescent properties substantially the same as the material described in the parent Specification. Specifications 509,857, 509,858, 519,157, 522,607 and 525,379 are referred to. Reference has been directed by the Comptroller to Specifications 509,857, 509,858 and 525,379.
Patent GB-132223-A (GB)
IPC: B24B11/02
Abstract: 132,223. Kobayashi, K. Sept. 4, 1918, [Convention date]. Turning balls. - A machine for turning rough steel balls comprises a revolving disk provided with holes into which the balls are inserted, the cutting-edges of the holes serving to turn the balls to accurate spheres as these are rotated by the rotating movement of the disk and by the reciprotating movements of upper and lower tables provided with rubber or leather faces which contact with the balls. The apertured disk 9 is carried by a vertical shaft 8 rotated by worm gearing from a crank-shaft 25 which reciprocates upper and lower tables 15, 4 connected by belts passing over pulleys 16. The lower table 4 is supported at its edges by ball or roller bearings on a guideway 2, and it is formed with a central slot 5 to enable it to pass the shaft 8, and is guided by a dovetail groove 6 engaged by a fixed rod 7. Rubber or leather surfaces 21, 20 are fixed to the tables, and the plate 9 is supported at its edges by bars 12 supported by legs 13 and springs 14.