baber/WOPTO huggingface dataset:
Patent GB-1536489-A (GB)
Title: Electric motor with moisture absorption system
IPC: H02K9/24
Filed: 1976-04-13
Abstract: 1536489 Casings for electric motors; removing condensation KLEIN SCHANZLIN & BECKER AG 13 April 1976 [16 April 1975] 15133/76 Heading H2A An explosion-proof electric motor 1 has a housing which is sealed apart from an aperture 6 disposed at the lowest point of the housing, and has a hygroscopic agent 7, e.g. silica gel, disposed over the aperture for absorbing condensation and/or humidity. As shown, the aperture is situated in a terminal box 5 connected to the main motor casing by a tube 4 which acts as a thermal barrier. The aperture has a stud (9), Fig. 2 (not shown) mounted therein, and air flows through the annular space between the stud and a bush (8) of the aperture, and through slots or grooves formed in a flange at the top of the stud and in the periphery of the stud below the flange. The motor drives a pump 2 and operates at high temperatures.
Patent GB-282621-A (GB)
Title: Improved method and means for detecting minute holes in material in thin sheet form, plating, coatings and the like
IPC: G01N33/20
Filed: 1927-06-07
Abstract: 282,621. American Chain Co., Inc., (Assignees of Pitschner, K.). Dec. 22, 1926, [Convention date]. Drawings to Specification. Testing and estimating.-A method of detecting minute holes in sheet material, such as metal plating, e.g. nickel plated steel, paint or other adherent coatings and foil, consists in applying to the surface to be tested a strip of material, such as paper, which is coated with a substance adapted to act chemically with the base and form a record thereon, either directly or after development. In an example, a sheet of paper is coated with a solution consisting of distilled water, agaragar, sodium chloride, potassium ferricyanide and ethyl or methyl alcohol. The coated sheet, after being moistened with water, is pressed on to the surface to be tested, coloured spots appearing after a. time on the paper as a result of chemical faction at the minute holes in the plating. In the rase of plating deposited on a coating of copper over steel, brown spots appear where the punctures reach only to the copper, and blue where the steel is reached. In testing foil, this is laid on a metallic surface with which the coating will react. The record may be, made permanent by coating the paper sheet with shellac varnish after '.the test.
Patent GB-1214265-A (GB)
Title: Surgical microscope with a tele-objective lens
IPC: G02B21/02
Filed: 1969-03-24
Abstract: 1,214,265. Microscope Objectives. CARL ZEISS-STIFTUNG [Trading as CARL ZEISS] March 24, 1969 [April 5, 1968], No.15284/69. Heading G2J. A surgical microscope, of the type wherein an objective lens forms an image of an object by forming a parallel path of rays which are focused at an image plane by a tube lens, is provided with a teleobjective lens 2<SP>1</SP> positionable in the focation of, and in replacement of, the objective lens, said teleobjective lens having a greater focal length than said objective lens and enlarging the field of view of the object without increasing the length of the instrument from the object plane to the image plane.
Patent GB-941326-A (GB)
Title: A housing for carrying electrical apparatus
Inventor: LEWIS HARRY STANLEY
IPC: H02G3/14
Filed: 1960-05-02
Abstract: 941,326. Mounting electrical equipment. CHAMBERLAIN & HOOKHAM Ltd. April 21, 1961 [May 2, 1960], No. 15294/60. - Heading H1R. [Also in Division G1] A housing for carrying electrical apparatus comprising a back portion 10, a body portion 11 and a removable front portion 12 is held in position in a panel 19 or other supporting structure by means of the edges of a panel aperture engaging in a peripheral recess 18 formed between the body portion 11 and the front portion 12. The body portion 11 is provided at each of its four corners with a bracket having a projection 17 which co-operates with a flange 16 of the front portion 12 to form the recess 18. The front portion is clamped to the panel 19 and body portion by means of a screwed bolt 20 and nuts 21, 22, the front porabutting against annular seals 23. The housing may be secured to the panel by means of bolts extending through holes in the back portion 10 and in this case spacers are inserted in the peripheral recesses, Fig. 2 (not shown).
Patent GB-1119974-A (GB)
Title: Delay line
Inventor: FREEDMAN NIGEL JOHN
IPC: H03H9/125
Filed: 1967-04-04
Abstract: 1,119,974. Electromechanical delay lines. MULLARD Ltd. 4 April, 1967, No. 15310/67. Heading H3U. A delay line comprises a single YIG crystal 1 of rod shape having its end faces 2, 3 optically ground and polished to provide, respectively, input and output ports. An input aerial 4 for electromagnetic waves formed by the inner conductor of a coaxial transmission line 5 is situated at the face 2, a similar output aerial (not shown) being provided at the face 3. The input electromagnetic waves are subjected to an applied external field Hext whereby they are converted to spin waves then to elastic waves and reconverted to electromagnetic waves according to known theories. According to the invention the direction of the field Hext when viewed in plan (Fig. 2, not shown) is inclined to the longitudinal axis of the crystal 1. This angle of inclination may vary between ¢ and 45 degrees and in one example is 20 degrees.
Patent GB-398296-A (GB)
Title: Improvements in connection with the indication of the condition of pneumatic tyres
IPC: B60C23/08
Filed: 1932-05-30
Abstract: 398,296. Pneumatic tyres. ROSCOE, J., 95, Beechwood Road, and STEVENSON, P., 30, Sefton Road, both in Litherland, Lancashire. May 30, 1932, No. 15334. [Class 144 (i).] A device 10 for indicating tyre-deflation comprises a shoe 14, normally clear of the road surface, carried by a pair of spring-arms 15, 24 which are connected respectively to a fixed bracket 11 and an arm 23 hinged to the bracket. Pressure of the shoe 14 on the ground rocks the arm 23 to close the gap between contacts 29, 30 insulated from the parts 11, 23 and arranged in a signal lighting-circuit. In a modification (not shown) the signal may be operated pneumatically by utilizing the suction in the exhaust and replacing the switch 29, 30 by a suitable valve.
Patent GB-593346-A (GB)
Title: Improvements in combined radio receiving and transmitting arrangements
IPC: G01S7/03
Filed: 1945-06-15
Abstract: 593,346. Aerial coupling arrangements. HAZELTINE CORPORATION. June 15, 1945, No. 15338. Convention date, Aug. 15, 1944. [Class 40 (v)] In a combined transmitting and receiving arrangement operating from one aerial and on a common frequency, loading of the aerial by the receiver is reduced during transmission by means which vary the receiver input impedance under the control of a rectified potential derived from the transmitted energy. The aerial feeder 12 is coupled to the input stage 22 of the receiver and to the transmitter 69 by means of transmission lines 60, 76 respectively, containing adjustable matching sections 63, 78, respectively. The stage 22 comprises the cathode-coupled amplifier 30, the cathode 31 being coupled to the line 60 over the condensers 36, 37, the tuning inductance 34, and biassing means comprising the choke 41, resistance 42 and the condenser 43. The output from the anode 33 is taken over the tuning inductance 38 and blocking condenser 40 to further stages of the receiver (not shown). The anode 50 of the diode comprising the electrodes 31, 50 is supplied from an inductance 35 coupled to the inductance 34, with R.F. energy in phase addition to the R.F. cathode potential. The rectified potential developed across the resistance 52 and condenser 53 is applied to the grid 32, causing the current to the anode 33 to be cut off during transmission. During reception the delay bias developed across the resistance 42 is sufficient to render the diode 31, 50 inoperative. The output stage 70 of the transmitter 69 is coupled to the line 76 by means of the matching transformer comprising the coupled inductances 71, 75 and tuning condenser 72, which is so arranged as to reduce the loading on the aerial when the drive is removed from the stage 70 in reception. A separate rectifier may be employed in place of the diode comprising the electrodes 31, 50 and the control potential may be amplified before application to the valve 30 during transmission to cause anode current cut-off.
Patent GB-845860-A (GB)
Title: Improvements in cooking vessels
Inventor: EIDE SVEIN
IPC: C25D5/16
Filed: 1959-05-05
Abstract: 845,860. Cooking vessels. OLSEN, A. S., and OLSEN, S. S., [trading as POLARIS FABRIKKER, A. OG S. SCHANCHE OLSEN]. May 5, 1959, No. 15428/59. Class 66. [Also in Group XXXVI] A cooking vessel 1 has a concave base to which a layer 2 of copper is applied electrolytically to fill out the concavity and provide a bottom thickest at the centre and decreasing smoothly to the periphery.
Patent GB-174032-A (GB)
Title: Process for industrially preparing derivatives of bornyle in view of preparing synthetic camphor
IPC: C07C35/30
Filed: 1921-06-03
Abstract: Borneol is prepared from oil of turpentine by heating the latter in an autoclave with an ester and then saponifying the bornyl ester produced.  The following are given by way of example of the esters employed:-butyl chloride, amyl chloride, camphyl chloride, dimethylethylmethyl acetate and isobornyl acetate; other esters that may be used are salicylates, formates and benzoates. The ester employed is regenerated by combining the acid liberated by the saponification process with the hydrocarbon formed during the ester treatment of the oil of turpentine.
Patent GB-695285-A (GB)
Title: Improvements in photographic roll-film canvas and cassettes therefor
IPC: G03B17/30
Filed: 1950-06-22
Abstract: 695,285. Photographic roll-film cameras and cassettes. COLLINGS, C. E. HILLARY-, and PETTIFER, F. J. June 20, 1951 [June 22, 1950], No. 15613/50. Class 98 (i). A roll -film cassette comprises a box-like body portion adapted to receive a roll of film, a lid normally closing the body portion against light and displaceable to expose the interior for loading purposes, and means carried by the body portion and resiliently urging the lid into the normal body-closing position, the lid having an end part projecting from the body portion and engageable with an abutment in a camera, and the body portion having an abutment located so as to be engaged by the closure lid or other part of the camera casing, the arrangement being such that when the cassette is placed within the camera casing the movement of the casing lid into its closed position urges the cassette into a position in which the projecting part of the cassette lid engages its abutment, and the body portion of the cassette is displaced relatively to the lid to provide a space between the lid and the box portion for the passage of the film. A camera combined with at least one cassette comprises a camera casing with a closure lid (Fig. 8), a compartment 14 in the casing to receive the cassette (Fig. 7), the cassette comprising a box 1 which receives the film wound on a spool 3, the box having a transverse ledge 5<SP>1</SP> at the top of one wall over which the film is drawn from the box into the exposure plane, the top of the box being light-sealed by a lid 6 pressed down against the rim of the box by spring means 8, ledge abutments 15, 16 in the compartment receiving the box, opposed abutments on the perimeter of the box engaging abutments 15, 16 when the camera casing is closed, upstanding abutments 4 on the rim of the box engaged by the camera closure lid to seat the perimetrical abutments of the cassette against abutments 15, 16, and a fixed abutment (or abutments) 10 in the camera casing against which one end 61 of the lid 6 is pressed to raise that end against the influence of spring means 8 when the camera casing lid is closed, to afford an egress gap for the film. As shown, side flanges of lid 6 fit into grooves 7 of the box 1 in closed position, and both end flanges 6<SP>1</SP> project from the cassette. Spool 3 is fast with a toothed wheel 13 outside the cassette meshing with a pinion of the film winding mechanism. The take-up cassette may be similar to the feed cassette, and may have a gear-wheel on its spool core also connected with the film wind pinion.
Patent GB-857640-A (GB)
Title: Spring clutch mechanism
IPC: F16D13/08
Filed: 1959-05-07
Abstract: 857,640. Friction clutches. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 7, 1959 [May 7 1958], No. 15646/59. Class 80 (2). In a coil spring friction clutch, one end of the spring 5 is attached to the driving member 1 by a clamp 6 and the free end of the spring may be progressively tightened on the driven member 2 by a barrel-shaped roller 8 tiltable in an anticlockwise direction to increase the effective number of coils in engagement with the member 2. Engagement of the clutch is effected by a hand lever 34 which operates a spring-loaded bell-crank 20 through links 23, 33 and a lever 24 carrying a cam 26 engaging a sleeve 30 on the driving member 1, the roller 8 being held in the fully engaged position by a spring latch 36. Progressive disengagement is effected by operation of a release lever 43, the roller 8 being rotated to its initial position by a return spring 16. A quick-release mechanism, Fig. 6 (not shown), is also provided for effecting instantaneous disengagement of roller 8 from the spring 5.
Patent GB-283067-A (GB)
Title: Improvements in or relating to coal cutting machines and the like
IPC: E21C31/10
Filed: 1927-06-13
Abstract: 283,067. Black, W. C. June 13, 1927. Coal-cutting machines. - In a coal-cutting machine having a gear head housing a worm gear for slewing the cutting mechanism, the worn gear comprises a toothed sector pivoted on the vertical shaft of the gear head and adjusted to be detachably connected, in at least two different relative positions, to the case or frame carrying the cutting members. In a machine as described in Specification 280,806, a toothed sector 16 is pivotally supported on the tubular support 12 carried by a disc 13 which interchangably sup ports cutting mechanism of the bar and chain type. The sector engages a worm 17 mounted i a yoke-shaped support 19 and driven by hand or mechanically. The sector 16 has two radial key ways 20, 21, spaced 90‹ apart and the disc 13 has two diametrically opposite key-ways 22, 23 adapted to register in turn with either of the key-ways 20, 21. Apertures 24, 25, 26 are pro vided in the gear-head casing 2 whereby a ke; 27 may be inserted by means of a detachable handle into the registering key-ways to lock the sector to the part 13, whereupon the cutting mechanism may be slewed through 90‹. The key is then removed, the sector swung back alone, and the key re-inserted, when the cutting mechanism may be slewed through a. further angle.
Patent GB-438897-A (GB)
Title: An improved seating arrangement for motor vehicles
IPC: B60N2/75
Filed: 1934-05-26
Abstract: 438,897. Back and arm rests. MORRIS, W., MORRIS, H., and MORRIS, G., Plumbe Street Garage, Burnley. May 26, 1934, No. 15733. [Classes 52 (ii) and 52 (v)] An extending back-rest and arm-rest for attachment to the rear seat of a motor vehicle to provide, in conjunction with an extensible seat-portion, an extra seat, is connected to a pair of members A fixed to the framework of the rear seat by a system of links and arms. A pair of arms C are pivoted to the members A and to the inner ends of a pair of links D which carry transverse members E to which the arm rest is secured. To the outer ends of the links D are pivoted arms F which are pivoted at their other ends to a pair of members G which carry the back rest. A further pair of arms H are pivoted to the lower ends of the members G and to the links D at the points d. A second pair of links J is pivoted at h to the arms H and pivoted at the inner ends to a pair of arms L which are pivoted at l to the first pair of links D and at their upper ends to the members A. The fitting folds as shown in Fig. 2, the back rest filling a space between two parts of the fixed back of the rear seat, and the arm-rest being concealed in the space behind the extending back rest. When extended, the back and arm-rests are held rigidly in position.
Patent GB-827894-A (GB)
Title: Improvements in or relating to drinking apparatus for livestock
IPC: A01K7/02
Filed: 1957-05-17
Abstract: 827,894. Drinking appliances for livestock. CHURCH, G. T. May 14, 1958 [May 17, 1957], No. 15751/57. Class 5(2). A drinking appliance for birds or animals comprises a receptacle 10 fitted with an inlet pipe 11 for water and formed at the upper edge of the side opposite the pipe 11 with a hook 13. The flange 16 of a trough 15 fits into the hook 13, being secured in position by a pin 18, the nett result being that the trough can pivot in a vertical plane relative to the receptacle 10. Water from the receptacle enters the trough via holes 20 until the trough swills sufficiently for the rubber pad 21 to close the opening 12 of the inlet pipe, the holes 20 being at such a height that the supply ceases before the water level in the trough reaches the holes. As the water level in the trough drops, the trough floats pivots about the pin 18 to uncover the opening 12. The construction is such that the trough may be removed easily for cleaning purposes, and an electric heater may be fitted in the receptacle.
Patent GB-1513782-A (GB)
Title: Gaming machines
IPC: G07F17/34
Filed: 1976-07-16
Abstract: 1513782 Gaming machines BELL-FRUIT MFG CO Ltd 16 July 1976 [17 April 1975] 15779/75 Heading G4V A gaming machine has 3 discs 1. Further discs are coaxial therewith and each has a magnet 7. An annular array of reed switches 8 are aligned with each magnet 7 and each switch corresponds to a particular symbol on the respective disc. The switches corresponding to preselected prize-winning symbol combinations are connected in corresponding prize-winning circuits. Preferably support board 4 is a printed circuit board. The discs could be in the form of reels and/or there could be two magnets 7 for each disc at different radial distances with the read switches divided into two annular sets, one at each of the respective distances.
Patent GB-858032-A (GB)
Title: Improvements in or relating to the pyrolysis of carbonaceous fuels and gasification of the pyrolysis residue
IPC: C01B3/22
Filed: 1958-05-16
Abstract: 858,032. Distilling and gasifying solid carbonaceous materials. ASPEGREN, O. E. A. May 16, 1958 [May 16, 1957; May 8, 1958], No. 15840/58. Class 55 (1). Solid carbonaceous materials such as coal, oil shale, peat and sawdust are distilled and gasified by a process in which the fuel is distilled at a temperature between 400-600‹ C. by contact with a heated solid heat-carrier to give oils, tars and a solid distillation residue, the solid distillation residue is gasified at a temperature between 900-1000‹ C. with oxygen or air enriched with oxygen and optionally with the addition of steam and/or carbon dioxide to yield a gas containing carbon monoxide and hydrogen and air ash, the heat of the ash being used to heat solid heat-carrier for use in the distillation. The heat carrier may be freshly formed distillation residue and the distillation, the gasification and the heating of the heat carrier by the ash may be fluidized. Preferably, however, the heat carrier consists of balls of metal or of a ceramic material and the fuel to be distilled and the ash from the gasification are passed in countercurrent to or co-currently with the balls in rotating drums and separated therefrom by screening or magnetic means. If the heat in the ash is insufficient to effect the distillation the sensible and if necessary a portion of the potential heat of the gasification gases may be used to heat the heat carrier to the desired temperature.
Patent GB-656020-A (GB)
Title: Improvements relating to the production of articles, for example, aerofoils, having laminated skins of moulded synthetic resinous material
Inventor: GORDON JAMES EDWARD
IPC: B29C70/00
Filed: 1948-06-11
Abstract: 656,020. Aerofoils. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 11, 1948, No. 15855. [Class 4] [Also in Group VIII] An aerofoil or other article having a laminated skin of moulded synthetic resinous material secured to an inner structure or core is made by interposing a parting agent between the whole or part of an outer lamination 11 of the skin and the whole or part of a next adjacent lamination 16, moulding the skin to shape, displacing the whole or part of the outer lamination, securing the skin to the inner structure or core 23 by securing members such as screws 24 which pass through the inner laminations of the skin, and replacing and glueing down the outer lamination. Alternatively, the planes of weakness may be so produced in the moulding stage that the whole of the leading edge L, Fig. 5, comes away with the outer skin when it is separated from the rest of the moulding. The parting agent may be a sheet of regenerated cellulose or a coating of methyl cellulose. The assembly placed in a mould 12 may comprise a layer 11 of uncured asbestos-reinforced synthetic resinous material, a thin layer 13 of glass fibre cloth, a layer 14 of regenerated cellulose, and a further layer 15 of glass fibre cloth, and sufficient further layers 16 of resin-treated asbestos to make up the required thickness. A porous mat 20 of glass fibre-cloth carrying an embedded electrical resistance network is placed in contact with the assembly, and is followed by a rubber bag 22 which is evacuated prior to heating by heat from the resistance networks and, if desired, from the mould itself.
Patent GB-412402-A (GB)
Title: Improvements in apparatus for sealing and securing wrappers, packages, cartons and the like
IPC: B65B67/10
Filed: 1933-06-01
Abstract: 412,402. Wrapping - machines. SYLVANIA INDUSTRIAL CORPORATION, Fredericksburg, Virginia, U.S.A. June 1, 1933, No. 15877. Convention date, June 13, 1932. [Class 94 (i).] After articles have been wrapped by applying a wrapper, coated or otherwise amenable to heat sealing, the folds of the packets are secured by passing them over a heated roller 17, a small arc of which projects through an opening 18 in the table 11 of the machine. The roller is mounted so as to be rotated by the passage of the article. Electrical or other heating elements 20 are mounted in an arcuate trough 19 surrounded by asbestos or other heat-insulating material 26. The table 11 is preferably of low heat conducting character. A similar roller 17<1> may be vertically disposed to act on the ends or sides of packets. The roller may be made in sections and each section 28, Fig. 6, may be resiliently mounted on springs 29 to allow for an uneven packet surface. Specification 212,455, [Class 94 (i)], is referred to.
Patent GB-206546-A (GB)
Title: Improvements in grubbers
IPC: A01B35/08
Filed: 1922-06-08
Abstract: 206,546. Reid, W. June 8, 1922. Multiple-tool implements; lifting main frames manually; draught devices.-The front wheel of a " Scotch " grubber is replaced by an adjustable pole and the frame is shortened and balanced on the cranked axle of the two side wheels. The cranked axle B is adjustable by means of a lever arm D which is secured by a chain C<1>. The pole G is pivoted on an upright F at the front of the frame C and is adjustably secured by a pin passing through a projection G<1> and a quadrant H. The draught takes place through a hook J. Specifications 17064*/95, 8170/03, and 10984/04 are referred to.