baber/WOPTO huggingface dataset:
Patent GB-1481155-A (GB)
Title: Mineral mining installations
IPC: E21D19/02
Filed: 1976-03-04
Abstract: 1481155 Mineral mining installations; mine roof supports GEWERKSCHAFT EISENHUTTE WESTFALIA 4 March 1976 [6 March 1975] 08693/76 Headings E1F and E1P In a thick seam mineral-mining installation each of the support units disposed at intervals along the face of a seam has a floor-supported, rigid underframe 11 and an upper frame 12 carried by the underframe 11, which defines a winning chamber 18 adjacent the face and an access chamber 17 remote from the face whilst the upper frame includes hydraulic props 21 for bearing on the roof of the working. Preferably the underframe has a floor-supported part 14, a roof part 15 and rear and intermediate structures 16, 19 interconnecting the parts 14, 15 to define the chambers 17, 18 and the props 21 carry a roof girder 20. The structure 19 may comprise pillars or a wall and the rear structure may be constructed to form a shield facing the goaf zone. A goaf shield 22, 23 may be pivotally connected between the roof girder 20 and the underframe 11. The working chamber 18 may extend the full height of the face or may be sub-divided by the roof part 15 when extending as shown up to the face into two compartments. Mining machines, e.g. ranging drum type mining machines 25, 28, and face conveyers 24, 27 are installed in the working chamber 18. Means are provided in the installation for shifting individual units towards the face. Such means preferably comprises an abutment interconnected through at least one double acting ram 31 with each unit. The abutment may comprise one or a pair of beams 30 which extend within the working chamber parallel to the face through several units or a similarly extending hollow housing located in the access chamber.
Patent GB-860038-A (GB)
Title: Apparatus for bending glass
IPC: C03B23/027
Filed: 1958-03-19
Abstract: 860,038. Glass sheet bending. PITTSBURGH PLATE GLASS CO. March 19, 1958 [March 28, 1957], No. 8772/58. Addition to 845,963. Class 56. In a glass sheet bending mould as in the parent Specification the smoothly surfaced rigid sheet forming the glass supporting surface is spaced laterally outboard of the adjacent one of the centre rails so that the glass supporting surface is spaced traversely therefrom, whereby, after bending, a portion of the periphery of the glass sheet is spaced from the rail and a compression stress is developed in the edge during cooling. As shown in Figs. 3 and 4, the mould comprises a centre section 39 and end sections 43, 44 rotatable relative thereto about stub hinges 48 attached to the centre rails 40, 42 by metal straps 49 extending inwardly from the end rails 45, 46 and which terminate in lever arms 50, 51 on which counterweights 52 are secured, the centre section 39 being connected by angle braces 32 and rods 36, 38 to a frame 20. Fingers 54, 58 adjacent the extremities 56 of centre rail 40, and spaced outwardly therefrom, align the glass sheet G during bending and they may be covered with a facing 59 of asbestos glass fibre cloth or the like. The slide bar 70 is spaced outwardly of centre rail 42 and slide bars 72, 74 outwardly of and rails 45, 46 from the ends of bar 70 to just past the extremities 76, 78 of the mould. The bars 70, 72, 74 extend obliquely upwardly and outwardly of the rails to provide a rigid support for the edge of the flat glass sheet G and are secured to the rails as in Fig. 4 with a spacer sleeve 77 surrounding a bolt 75. The edge of the sheet slides down the surface 71 of the bars to lie on the rails with the overlap to give the compression stress. A heat abstractor member 64, provided for maintaining a relatively flat area adjacent rail 40, comprises one or more metal plates 66 with an overlying larger metal screen 68. Abstractor members 80, 82 (not shown) are provided on rails 45, 46 as well as end members 84. As shown in Fig. 7, a similar mould structure is designed to produce a windscreen with sharply curved centre section extending into the roof, and the centre rail 142 and end rails 145, 146 have slide bars 170, 172 and 174. The rail 142 is reversely curved at each end and the bar 170 corresponds thereto so as to form the roof section on bending. Specifications 811,279 and 845,962 also are referred to. Reference has been directed by the Comptroller to Specification 820,809.
Patent GB-830955-A (GB)
Title: Improvements in or relating to devices for checking of the cost of telephone calls
IPC: H04M15/30
Filed: 1958-03-20
Abstract: 830,955. Indicating- and recording-apparatus. LUNDH, G. H. T. March 20, 1958 [March 23, 1957], No. 8886/58. Class 106 (4). Auxiliary apparatus to be used with a telephone apparatus but independent thereof for checking the cost of calls comprises a drum 25 which-can be driven by clockwork and carries round its periphery a number of scales of charges at different tariffs, a paper strip 39 which can also be driven bv the clockwork and is at least as wide as the axial extent of the scales and a slide 19 carrying a pencil 55 for recording while a call is in progress and an index 31 indicating the tariff to which the slide has been manually set. To indicate and record the cost of a call the slide is first set to the appropriate tariff and when the call begins a start key is depressed to start the clockwork. The accumulated cost appears through a window 29 in the slide 19 superimposed over a slot 17 in the housing 11 and the pencil 55 marks the strip 39 until a stop key is depressed to stop the clockwork. A free wheel device in the drive allows the drum to be zeroized without reversing the paper strip. A time scale on the drum indicates the duration of the call through a window 30. A pencil 57 of a different colour may be used for incoming calls reserving the pencil 55 for outgoing calls.
Patent GB-475768-A (GB)
Title: Carrier wave demodulating systems and apparatus
IPC: H03D1/22
Filed: 1937-03-25
Abstract: 475,768. Valve circuits for wireless reception. STANDARD TELEPHONES & CABLES, Ltd. March 25, 1937, No. 8887. Convention date, May 5, 1936. [Class 40 (v)] A demodulator, particularly for signal modulated waves occupying a wide frequency band, comprises a pair of similar thermionic valves with the signal applied to an electrode of one of the valves and a source of local oscillations applied to another electrode of the valve and to the similar electrode of the other valve in opposite phase and with the output electrodes of the valves connected in parallel. The Figure shows a pair of valves MOD3, BAL, the signal applied only to the valve MOD3 and the local oscillation to both of the valves. The output of the quartz controlled oscillator OSC3 is applied to a frequency trebler TTR3, TTR4 and through an amplifier AMP8 and transformer 32 to the suppressor grids of the pentodes MOD3, BAL. A balancing condenser 29 ... 31 is provided to assist in obtaining exactly opposite phase and a variable resistance 34 allows an exact cancellation in the output of the demodulating current. The output filter comprises a high-pass filter 37 and a low-pass filter 38 connected to each other by a resistance attenuator 39. The control grid of the pentode BAL is earthed and a switch 35 is provided so that this valve may be replaced by a resistance to permit tests and adjustments to be made.
Patent GB-691998-A (GB)
Title: Improved bag or field case
IPC: A45C3/02
Filed: 1951-04-17
Abstract: 691,998. Brief cases &c. SCHMOLCK, S. April 17, 1951 [April 18, 1950], No. 8895/51. Class 133 A fitted case particularly for physicians, folding into the form of a brief case, has sliding clasp fasteners 1 at each side arranged so that the case can be opened out flat, a compartment 13 for bandages &c. extending over the whole of both sides and the bottom, and pockets, loops and straps 4, 5, 6, 8 of different sizes for instruments &c. on the sides, bottom and flaps 12. The pockets &c. are accessible from the top on opening the flap 12, without opening the sliding clasp fasteners 1. Above the pockets 4 a ribbon forms a series of loops and further pockets 10, 11, 11a are provided. Pockets in the flap 12 are used for prescriptions, pencils, pen &c. A sliding clasp fastener 15 closes a further pocket in the flap 12 and straps 17 are arranged at the bottom of the bag.
Patent GB-1280723-A (GB)
Title: A rail system
IPC: B65G1/04
Filed: 1969-06-13
Abstract: 1280723 Warehouse systems INTERLAKE STEEL CORP 13 June 1969 [14 June 1968] 8905/72 Divided out of 1280721 Heading B8E The description is similar to that of the Specification 1,280,721, but the claims are different.
Patent GB-799789-A (GB)
Title: Improvements in or relating to lubrication of pumps
IPC: F16C19/30
Filed: 1956-03-22
Abstract: 799,789. Lubricating swash plate pumps. CORNELIUS, R. T. March 22, 1956, No. 8955/56. Class 102(1). [Also in Group XXXIV] A pump of the rotating cylinder swash-plate type has lubricating apparatus comprising a rotor 24 with a flange 25 formed with a radial surface 26 which is spaced from a parallel surface 21 on a bearing race 19. The space 33 between the surfaces contains rollers 31 mounted in a cage 38 formed with apertures to permit circulation of lubricant. The rotor 24 has a journal 27 formed with a cylindrical surface 28 spaced from a cylindrical surface 22 on the bearing race 19. The space between these two surfaces contains rollers 29 mounted in a cage 32. The pump casing has a chamber 18 for lubricant. When the pump is in operation the roller bearings 31 and the cage 38 form an impeller which draws lubricant from the chamber 18 through passageways 103, space 33, annular passageway 104, connecting passageways 106, annular channel 70 and back to the chamber 18. Lubricant also flows from annular passageway 104 through outlet passageways 105 into the space 34 containing roller bearings 29. As lubricant passes along annular channel 70 it is cooled, the heat being dissipated through the walls of a dome 13. The pump comprises a cylinder block 66 driven from the rotor 24 through a universal joint 83 comprising a body 84 with holes 86 in which pivot studs on spherically-shaped caps 78 formed with arcuate grooves 89. These grooves receive axiallydirected splines 91, 98 in bores in the cylinder block 66 and the rotor 24.
Patent GB-138226-A (GB)
Title: Improvements in and relating to papers for use as a dielectric for electrical condensers and other similar purposes
IPC: H01G4/22
Filed: 1919-04-09
Abstract: 138,226. Haigh, F. April 9, 1919. Electric insulating paper; tissue paper; paper, treating with special materials.-The method of coating paper described in Specification 24981/11 is used to. coat thin paper with homogeneous substances such as pyroxylin, collodion, nitro-cellulose, cellulose acetate, &c., in the production of electrical insulating-material suitable as a dielectric for electric condensers and for similar purposes.
Patent GB-102227-A (GB)
Title: Improvements in Devices for use in Guiding, During their Manufacture, Tinned or other Coated Metal Plates from the Grease Pot Rolls to and Through the Cleaning Machine.
Inventor: REES HERBERT DAVIES
IPC: C23G5/00
Filed: 1916-06-26
Abstract: 102,227. Rees, H. D. June 26, 1916. Cleaning.-Tin or other coated metal plates pass from the grease-pot rolls to rolls d, e, Fig. 1, which deliver the plates to a set of rolls a, b, c, whence they are delivered to adjustable rolls f, g, the plates being cleaned by bran or other cleaning- material in the cleaning-troughs u, u<1>, During their passage through the troughs, the plates are guided by adjustable guides consisting of curved rods r working telescopically in similarly curved members s, Figs. 1, 3, and 4; the guides are riveted to bars t secured in suitable positions to the machine framing. The rolls d, e are mounted in detachable brackets l, which are adjustable horizontally and vertically; adjustable distancepieces m allow the relative positions of the brackets l and the rollers a, b, c to be adjusted to suit different sizes of plates. The rollers a, b, care arranged to form a triangle, the roller a being adjustable in respect of rolls b, c. Before a plate leaves the rolls d, e, it is nipped between the rolls b, a and, on leaving these, falls upon a guide (not shown), from which it slides between the rolls a, c. but in a reversed position. The rolls d, e and also the rolls a, b are power-driven; more than one set of rolls a, b, c may be arranged in the cleaning-machine.
Patent GB-627002-A (GB)
Title: Improvements in or relating to high-frequency-dielectric heating systems
IPC: H04B1/03
Filed: 1947-04-02
Abstract: 627,002. Dielectric heating. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. April 2, 1947, No. 9013. Convention date, April 3, 1946. [Class 39(iii)] [Also in Group XXXV] Dielectric heating apparatus for drying out a condenser bushing 4 comprises a metallic screening cage 36 adapted to receive the bushing and having busbars 90, 92, 94 which are electrically connected to the cage and to one output terminal of a high-frequency transformer, the other output terminal of which passes to an insulated lead 58. Drying is effected by the high-frequency field established within the bushing by connecting its mounting flange 18 to the lead 58 and the extremities of its central conductor to the busbars 90, 92, by leads 64, 66. In the arrangement shown, a number of bushings may be treated simultaneously in separate cages, a common high frequency oscillator 28 being provided which is connected by a single transmission line 30 to a variable coupling transformer 42 in each cage, the transformer having a high impedance primary winding, so that de-tuning or opening of the work circuit of any transformer does not appreciably affect the working of the other heater circuits. A switch 56 in each cage allows connection of the lead 58 either to a tuning reactor 44 for the work circuit or to a power factor measuring circuit 62.
Patent GB-1133383-A (GB)
Title: Improvements in the production of azo dyes
IPC: C09B39/00
Filed: 1966-03-02
Abstract: 1,133,383. Process for making azo dyes. W. KRAUS. 2 March, 1966, No. 9094/66. Heading C4P. A process for the production of azo dyes comprises coupling a heterocyclic or aromatic diazonium or tetrazonium compound with a compound containing one or more radicals having the formula | CNCH 2 CON- the coupling taking place at the -CH 2 - group of the radical. Coupling may be in weak acid to strong alkali media. Conventional metallization processes are employed, Co, Cu, Cr and Ni complexes being specified.
Patent GB-191321-A (GB)
Title: Improvements in garters or suspenders for hosiery
IPC: A41F11/16
Filed: 1922-03-29
Abstract: 191,321. Murdoch, F. M. March 29, 1922. No Patent granted (Sealing fee not paid). Pockets; garters; hose suspenders.-In a garter or hose-suspender of the kind having a pocket attached the pocket or purse 2 extends downwardly below the securing- band 1 and has gusset side-pieces 6 to allow of easy access, and a press stud fastener. The ends of the garter-band are sewn between two thicknesses of material of which the purse is made. Reference has been directed by the Comptroller to Specifications 6937/08 and 103,713.
Patent GB-1209871-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B60G11/04
Filed: 1969-02-19
Abstract: 1,209,871. Indenpendent spring suspensions. HONDA GIKEN KOGYO K.K. 19 Feb., 1969 [29 Feb., 1968], No. 9105/69. Heading B7D. A motor vehicle suspension comprises a wheel 2 mounted on a transverse supporting arm 6 pivotally attached to the vehicle 1 beyond the centre line thereof at its end remote from the wheel and connected, remote from its attachment to the vehicle to a longitudinal leaf-spring 4 attached to the vehicle. The arm is mounted in a rubber seat 11 in a bracket 10, and connected to the spring by swingable links 8, 9 attached to a fastening device of the leaf-spring which may pass through holes in the links, as shown in Fig. 1, or be suspended thereby, as in Fig. 6.
Patent GB-1445038-A (GB)
Title: Knitting machines
IPC: D04B15/78
Filed: 1974-02-28
Abstract: 1445038 Knitting machines JUMBERCA SA 28 Feb 1974 [28 Feb 1973] 9121/74 Heading D1C Needles 3 are selected in a circular or flat knitting machine by a mechanism including rocking jacks 4, cantilevered resilient strips 15a, b, c, cocking means such as rotary cam discs 14a, b, c for deflecting the strips from a rest position (15a, c) to a deflected position (15b) and holding means such as electromagnets 18a which selectively hold or release the deflected strips in accordance with a programme, held strips in the Fig. 1 embodiment missing fingers 6 while released strips engage the fingers to rock the jacks. The discs 14 are rotated in synchronism with the needle bed by gearing 9, 11. A levelling cam 7 and lifting cam 8 for selected jacks are provided. The free ends of the strips 15 are formed as cams. In Fig. 4 the cocking means includes a stationary cam 26 which acts through the selection jacks 25 to cock the strips 27. The jacks act by butts 25c on cocking portions 27' of the strips while the same butts are rocked by cam portions 27"' of strips released by electromagnets 28. A levelling cam 29 is provided and the selection jacks act on the needles through intermediate jacks. In a third embodiment the cam 26 is omitted and the axial position of jacks 25 is fixed, cocking being effected by engagement of the butts 25c with cocking cams on the portions 27' of the strips.
Patent GB-1360853-A (GB)
Title: Amphibious vehicles
IPC: B60F3/00
Filed: 1971-04-08
Abstract: 1360853 Amphibious vehicles; vehicle wheels J A KEARSEY 6 April 1972 [8 April 1971] 9164/71 Headings B7A B7V and B7C An amphibious vehicle is moved, on both water and land, by rotors 13, 15, 17 and 19, each of which comprises a pair of end discs 39 and 41 joined by rods which carry a flexible impermeable membrane 61. Air from a compressor 11 is fed to the space 75 inside the membrane 61 via hollow shafts 45. The pressure in the space 75 can be controlled from the vehicle cabin to vary the shapes of the concavities which the free portions of the membrane assume while underwater (Fig. 6) and thus to vary the propulsion characteristics of the rotor. Within each rotor an inflatable bag 57 is also inflated by the compressor 11 and improves the mechanical linkage between the discs 39 and 41. The bag 57 may be used to control rotor buoyancy if the pressure in space 75 is constant and in any case reduces the volume of space 75 to facilitate control of pressure in the latter. Retractable hydrofoils 21 and 23 are mounted behind the rotors and, by appropriate adjustment of their inclination, can be used to supplement the lift and forward thrust of the rotors. The rotor end discs are hollow and are divided by radial plates 47 into compartments which are filled with a polystyrene filler to aid buoyancy. The outer disc of each rotor contains an hydraulic motor 38 to rotate the rotor. Each end disc carries a tyre 71 (Fig. 3) for use during land travel. Each tyre is bolted to the disc rim and overlies the edge of the membrance 61 to hold it in place. The vehicle buoyancy may be provided solely by the rotors. Alternatively the buoyancy may be provided partly or wholly by hull displacement or by an air cushion. In the latter case, the cushion may be confined between lateral hulls and the rotors. The rotor end discs may be resilient so that they can partly conform to land contours. Steering may be effected by differential rotor speed and/ or pressure control. Alternatively, the rotors may be steerable. When rotors are not required to be buoyant, for example in the case of an amphibious submarine, they may be water filled. To ensure appropriate deformation of the membrane in this case, each rotor is divided by an internal plate across which a pump maintains a pressure difference. During travel on land, the membrane may be withdrawn for travel over hard surfaces or may be used to give partial support for the vehicle when travelling over soft surfaces. The rotors may have helically arranged tie rods, i.e. one end of each rod may be angularly advanced relative to the other end. This arrangement gives an improved ride where the tie rods themselves contact the ground to support part of the vehicle weight.
Patent GB-186362-A (GB)
Title: Improvements relating to electric motors
IPC: H02K23/66
Filed: 1921-03-24
Abstract: 186,362. Minicus, R. March 24, 1921. Alternating - current commutator machines; motors, controlling.-An electric motor is adjusted to operate with substantially the same turning moment on continuous-current and alternating- current circuits by the provision of tappings p, p<1>, - - n, n<1>, Fig. 7, on the field-magnet coils m which are joined to terminals b<1> - - b<6> of a coupling device having a movable contact bar e; by altering the diametrical position of the bar e, sections of the field-magnet coils are cut in or out to suit the different voltages and frequencies of the supply circuits. The construction of the coupling device is shown in Figs. 1 to 3; the device comprises a fixed base a provided with contact sockets b and a cover d having two contact-pins C connected by a conducting bar e. A modified form of contact-device for use with a motor having compensating coils is shown in Figs. 4 and 5. Tappings on the field-magnet exciting coils of the motor are connected to the outer circle of contacts s, and tappings on the compensating coils are connected to the inner circle of contacts t; the cover d is provided with two spring-pressed plates u, v which are arranged to connect together pairs of contacts s, t at the ends of the same diameter. The motor shown in Fig. 7 may be operated as a repulsion motor by joining together the armature terminals f, j, or as a series motor by connecting one armature terminal f to one terminal g of the field-magnet coils, the other two terminals j, k being connected to the line.
Patent GB-411633-A (GB)
Title: Improvements relating to means for jointing the ends of tubular elements or pipes to headers or the like
IPC: F22G3/00
Filed: 1933-03-27
Abstract: 411,633. Pipe joints. SUPERHEATER CO., Ltd., Bush House, Kingsway, London.- (Compagnie des Surchauffeurs ; 3, Rue la B÷etie, Paris.) March 27, 1933, No. 9203. Addition to 338,462, [Class 99 (i)]. [Class 99 (i).] In the joint between a pipe and header described in the parent Specification the end of the pipe 1 beyond the annular abutment 9 is staved-up for a part of its length to a thickness equal to or slightly greater than the normal thickness of the pipe and terminates in a spherical jointing surface 10. The latter is concentric with the spherical surface on the abutment 9, but is of a radius approximately the same as or slightly greater than the external radius of the pipe, that is, less than that of the said surface 9. The surface 10 may be continued to meet the bore of the pipe in a knifeedge ; preferably however the extreme end of the pipe is of substantial thickness to provide an annular surface 12 normal to the pipe axis.