baber/WOPTO huggingface dataset:
Patent GB-817480-A (GB)
Title: Improvements in or relating to control arrangements for hydraulic presses
IPC: B30B15/16
Filed: 1954-05-20
Abstract: 817,480. Extrusion presses. FIELDING & PLATT Ltd., and ROWLES, R. V. Dec. 5, 1955 [May 20, 1954], No. 14900/54. Class 83 (4). [Also in Group XXIX] In an hydraulic extrusion press an approach stroke of the press ram is effected by supplying pressure from an accumulator 13 to a main ram cylinder 1 through a partially open valve 21, the ram moving against pressure supplied from an accumulator 17 to push-back cylinders 8, 9. At the end of the approach stroke, the power stroke is initiated by a tappet which operates a valve or switch to actuate pilot valves 27, 29, thus fully opening the valve 21, opening a valve 24, and closing a valve 23, so that full working pressure is applied to the press cylinder and the push-back cylinders are opened to exhaust. At the end of the working stroke pilot valves 26 ... 29 are actuated by manual or automatic control means so that they assume the positions shown and the push-back cylinders retract the press ram, liquid from the cylinder 1 passing through an adjustable relief valve 22 to exhaust. Specification 749,571 is referred to.
Patent GB-1005886-A (GB)
Title: Extrusion device for rocket motors and the like
Inventor: HENDERSON CHARLES BROOKE
IPC: F02K9/70
Filed: 1962-04-18
Abstract: 1,005,886. Rocket motors; plastic propellent charges. ATLANTIC RESEARCH CORPORATION. April 18, 1962, No. 14986/62. Heading F3A. A rocket motor comprises a fuel tank 10, extrusion device 13 and combustion chamber 14, plastic monopropellent being forced by a piston 12, driven by gas from a pressurized container 15, through extrusion passages 13a, 13b and 13c to burn in chamber 14. Several embodiments of the extrusion device are described, in each of which the cross-sectional areas of the extrusion passages and/or their lengths are so chosen that the rate of extrusion of monopropellent is substantially the same peripherally and centrally of the device. The extrusion device in the motor of Fig. 1 is also shown in Fig. 2 where each passage is of equal length, but the cross-sectional areas of the passages increase from that in the centre to those in the outermost ring. In Fig. 5 the outlet of the device is of truncated conical form whereby the peripheral passages are shorter than the central passage although the cross-sectional area of each passage is the same. Preferably the extrusion device is made of material having low thermal conductivity, such as ceramics and fireclays, to prevent burn-back of the propellent within the extrusion passages. Particularly suitable are materials of low thermal conductivity which gasify at high temperature, such as polyamides, cellulose esters and ethers, polyesters and the like. Finely divided solid organic or inorganic compounds with good gasifying properties may be added to the above mentioned basic materials, examples being oxamide, melamine, anthraquinone and calcium, sodium and ammonium phosphate, carbonate and bicarbonate. Alternatively the device may be of a non-gasifying refractory felted, fibre, flake or woven material such as asbestos, fibreglass, mica to which is added a suitable gasifying material such as an organic polymer. Compositions of suitable plastic monopropellents are as described in Specification 972,723.
Patent GB-529024-A (GB)
Title: Improvements in fluid pressure operated implement
IPC: B25D9/08
Filed: 1939-05-19
Abstract: 529,024. Percussive hammers. APP, O. O. May 19, 1939, No. 15017. Convention date, May 19, 1938. [Class 124] In a percussive hammer air admitted at one end of the cylinder passes along a longitudinal passage to a freely movable throttle valve in the other and tool end of the cylinder said valve controlling the air which passes through a second longitudinal passage to the cylinder base in which works a piston having two cylindrical enlargements spaced by a reduced part. As shown, a cylinder 10 has a series of longitudinal grooves or passages quadrantally arranged and connected to inlet and exhaust ports and passages. The grooves are enclosed by a sleeve 11 provided with exhaust ports 68 leading to an adjustable baffle in the form of an adjustable sleeve 75 provided with ports 78 capable of registering with the ports 68. One of the grooves 62 is for exhaust and communicates with the cylinder bore by ports 66, 67. An air admission port 55 connects the bore 24 of a plug 25 by an annular passage 28 with one of the grooves 56 and thereby to a port 57 leading to a freely movable automatic throttle valve 51 which may be maintained in open position by a rod 41 having a finger piece. The plug 25 has a tapered bore connecting to an air admission chamber 14. From the throttle valve a port 58 leads to another groove 59 communicating with ports 60, 61 leading to cylinder bore. Other grooves 63, 64 are separated by a web 65 and the former is connected to cylinder bore by ports 69 and 70 and bleeder channel 71. The groove 64 is correspondingly connected by ports 72, 73 and bleeder channel 74. A chuck 31 is provided with recesses for balls 36 engaging a reduced part 35 of a tool 34, a spring collar 37 maintaining the tool in position and allowing ready withdrawal. In the normal position of the tool the valve 51 is supported by the air in closed position but the inward movement of the tool in engaging the work moves the valve into open position and air passes through into the groove 59 through the port 60 and by the port 73 into the cylinder outwardly of the part 44 of the piston and moves it to the innermost position. Thereupon air is admitted into the piston chamber to advance the piston in the direction of the tool. Gradually in the advance communication is shut off at the port 70. The bleeder channels 71, 74 are covered and opened respectively to obviate any balanced condition of air in the piston chamber. Air passes into the groove 64 through the port 73 and enters the inner end of the cylinder to cushion the final part of the forward stroke, the part 43 having cut off the supply of air. In the inward movement of the piston the impact is cushioned by dashport action of a chamber 86.
Patent GB-200985-A (GB)
Title: Improvements in and relating to differential pressure gauges for use in measuring the flow of fluids
IPC: G01L7/00
Filed: 1922-05-30
Abstract: 200,985. Hodgson, J. L. May 30, 1922. lndex hands; recording by co-ordinates.-In a differential pressure gauge a plate member, moving transversely to its length, displaces a roller on the end of an arm carried by the spindle of the index hand 23. The hand is returned by a counterweight 24, and is provided with a roller 25 engaging a weighted arm 30 pivoted to the spindle of a recording-pen arm 27 that co-operates with a clock-driven record disc.
Patent GB-167903-A (GB)
Title: Improvements in and connected with beam supports for swings and other apparatus
IPC: A63G9/12
Filed: 1920-06-04
Abstract: 167,903. Hunt, H. H. June 4, 1920. Swings; gymnasium appliances.-The support for a swing, gymnastic apparatus, or the like consists of a tube 1 each end of which enters one opening, in a triple socket 3, the tubular legs 2 entering the other two openings. The tube 1 is secured by keys 6 and a bolt 7. The legs 2 are secured by a bolt 10 and plate 8 and are embedded in concrete C, a sleeve 12 being fitted at the ground level to prevent corrosion. The bar 17, to which the swing ropes are fixed, is mounted in bearings 16, clamped to the bar 1 and formed with holes for the introduction of grease &c.
Patent GB-1125370-A (GB)
Title: Process for obtaining difficultly soluble diamine-diacid salts
IPC: C08G69/00
Filed: 1967-04-03
Abstract: 1,125,370. Separating bis-(4-annno-cyclohexyl) methane isomers. E.I. DU PONT DE NEMOURS & CO. 3 April, 1967 [4 April, 1966], No. 15181/67. Heading C2C. [Also in Division C3] Aqueous solutions of over 20% concentration of dicarboxylate salts of bis-(4-amino-cyclohexyl) methane of which at least 50% is the trans-trans isomer are obtained by dissolving the diacid and diamine in water in a sealed vessel at 110 to 160 C. and at least autogenous pressure. The solutions may be used to prepare polyamides (see Division C3) or to obtain the pure trans-trans isomer or a transtrans enriched mixture by cooling to a temperature at which the less-soluble trans-trans isomer salt precipitates.
Patent GB-946232-A (GB)
Title: Improvements in or relating to electronic tuning devices for klystron valves
IPC: H01J25/22
Filed: 1960-05-02
Abstract: 946,232. Frequency modulation. COMPAGNIE FRANCAISE THOMSON-HOUSTON. May 2, 1960 [May 5, 1959], No. 15342/60. Heading H3R. [Also in Division H1] An internal-cavity klystron is associated with a gas discharge tube 9 for tuning or frequency modulating the klystron, a tuning cavity 1 being coupled on the one hand to the internal resonant cavity 2 of the klystron, and on the other hand to a load circuit 5, the tuning cavity being traversed by the gas discharge tube in approximately parallel relation to the electric field axis and containing within an insulating envelope 10 at least an anode 12 and a cathode 11. A frequency modulating voltage source 19 is connected to the anode 12 via a transformer 17. High frequency power leaks are prevented by arranging the discharge tube with a high frequency choke structure comprising #/4 cylinders 13, 14. The extent of the coupling of the tuning cavity 1 to the klystron resonator 2 and the load circuit 5 is controlled by screw plungers 7 and 8. The discharge tube, which preferably has a filling of neon at 5 mms. of mercury pressure, may have a cylindrical electrode surrounding the cathode.
Patent GB-384330-A (GB)
Title: Improvements in and relating to methods of securing metal to porcelain
IPC: H01B17/38
Filed: 1931-05-26
Abstract: 384,330. Insulators. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and ADKINS, R., 23, Paradise Street, Coventry. May 26, 1931, No. 15399. [Class 36.] To prevent cracking of a porcelain body, such as an insulator, by the contraction of a cap, band, flange, or other metal fitting secured thereon by a metal filler or solder, the fitting is formed with corrugations on that portion of its surface which is secured to the porcelain. The ridges and valleys of the corrugations extend parallel to the longitudinal axis of the fitting. The valleys may be filled in with solder.
Patent GB-782259-A (GB)
Title: Improvements in the formation of vitreous enamel coatings on metallic surfaces
Inventor: CRAMER MARCO JAMES
IPC: C23C22/74
Filed: 1956-05-17
Abstract: In the method of the parent Specification the surface bearing the phosphate coating is rinsed with water containing less than 7 parts per million of halogen ions, less than 60 parts per million of sulphate ions and less than 40 parts per million of hydroxyl ions before it is heated to form the mixed phosphate-oxide coating. Distilled or de-ionized water is preferably used.  The rinsing may be effected by immersion, with vigorous agitation of the water, or by spraying using high-velocity sprays.
Patent GB-793144-A (GB)
Title: Improvements in or relating to arrangements for stacking sheets successively cut from a continuous strip
IPC: H04L13/06
Filed: 1956-05-18
Abstract: 793,144. Sheet-delivery apparatus; cutting apparatus. CREED & CO., Ltd. May 18, 1956 [May 24, 1955], No. 15566/56. Class 100(1) An arrangement for stacking sheets successively cut from a continuous strip comprises means for clamping in position a pile of sheets already stacked, means for raising the trailing edges of the sheets, means for unclamping the pile of sheets, means for feeding forward the leading edge of the strip below the means for raising in such manner that the strip is inserted under the pile of sheets, and means for cutting off the portion' of the strip so inserted, all the means being arranged to operate in the order above specified. The arrangement is shown applied to a teleprinter 10 which has a platen 12 over which a continuous roll of message paper is fed. From platen 12 the message strip S is fed between a fixed knife blade 13 and movable blade 14 of a cutter, between rods 16, 17, under flat springs 18, 19, 21 and over guide wires 22. The rods 16, 17 are secured to end discs 25, 26 on shafts 27 and 28 rotatably mounted on the teleprinter cover 29. The platen 12 has a shaft 31 with a bracket 32 loosely mounted thereon the other end of which carries a shaft 34. A pulley 36 is secured to the shaft 31 opposite a pulley 37 secured to the shaft 34 via a spiral spring 38. Also mounted on the shaft 34 is a gear 39 which meshes with a gear 41 on the shaft 28. Drive is established between the pulleys 36 and 37 by a spring belt 42. The rods 16, 17 constitute the paper raising assembly and while the strip S is being advanced the rods 16, 17 are constrained to remain stationary by means of an escapement cam 43 on the shaft 27 which is engaged by a lever 44. Energy is thus stored in the spring 38. At the end of the message the blade 14 is automatically actuated to move the strip and in so doing actuates a lever 45 so that the lever 44 is raised to allow the sheet raising assembly to rotate through 180 degrees under the action of the spring 38. The rod 16 thus raises the trailing edge of the strip and the next strip will pass under the rod 16 and over the rod 17 and thus underneath the previously severed strips.. The sheet retaining springs 18, 19, 21 are secured to a rod 47 loosely mounted in brackets 48, 49. As the sheet raising assembly starts to rotate a cam 51 en the shaft 27 closes contact 52 to energize a solenoid 53, the armature 54 of which causes retraction of a link 56 connected to another link 55. The link 55 is thus rotated in a clockwise direction about its pivot 57 thus causing in turn a pin 58 secured to shaft 47 to rotate in a counterclockwise direction to lower the rear ends of springs 18, 19 and 21 to hold in position prior cut messages which are resting on the guide wires 22.
Patent GB-248616-A (GB)
Title: Improvements in electric connectors
IPC: H01R31/00
Filed: 1925-06-17
Abstract: 248,616. Kniveton, F. June 17, 1925. Plug couplings. - A connector, such as a tag for the end of a headphone cord, comprises a brass rod a', Fig. 2, with a reduced pin portion a and transverse holes b adapted to receive the pin portions of similar connectors. The headphone cord is permanently secured in a slot a<3>. The holes b and pin a may be tapered or the pin may be bifurcated. In a modification, spring clips c, Fig. 3, are secured to the rod a<1> to receive the pins a.
Patent GB-653094-A (GB)
Title: A new or improved flexible mounting for a vehicle engine or power unit
IPC: B60K5/12
Filed: 1948-06-11
Abstract: 653,094. Motor vehicle engine mountings. GUY MOTORS, Ltd., and ROBERTS, G .P. June 11, 1948, No. 15756. [Class 79 (iii)] [Also in Group XXXII] A flexible rear mounting for a motor vehicle engine comprises rubber pads or a rubber ring interposed between co-operating arcuate seatings on the engine and a supporting bracket, the mounting being of substantially elliptical form in a vertical plane and the seatings carrying flanges or fingers engaging the rubber pads or ring to locate the engine against axial movement relative to the bracket. As shown a bell housing 10 at the rear of the engine for the flywheel 11 and clutch 12 is extended rearwardly to provide a support bearing 14 for the output shaft 13. The bearing 14 is formed with concave seatings 15, 16 for the rubber pads 26, 20. The axis of the rubber pads is inclined so as to extend through the centre of mass of the engine. The lower rubber pad 20, Fig. 4, has a radial thickness greater than the upper one 26, and is of arcuate shape struck from a centre B above the axis A of the mounting whilst the arcuate shape pad 26 is centred at C below the axis A so that the torsional resistance of the mounting increases rapidly with increase in amplitude of the angular movements of the engine. The pad 20 is convex across its width to be complementary to the shapes of the seating 16 and a seating 21 on the supporting bracket 22 which is mounted on a tubular cross member 23 of the vehicle chassis. The seating 16 is formed with the fingers on its front and rear edges, between which fingers extend the fingers formed on the seating 21, the fingers compressing the pad 20 on fore and aft movement of the engine relative to the bracket 22. The pad 26 has a convex inner edge complimentary to the seating 15 whilst its outer edge is flat and fitted over this pad is a flat steel strap 27, the ends of which are connected by loops to transverse pins mounted in the heads of studs slidably mounted in lugs on the bracket 22. The studs are secured in position by nuts and lock nuts. According to the Provisional Specification the strap is secured to the bracket or to the cross member by turnbuckles or other tightening means.
Patent GB-1066592-A (GB)
Title: Image pickup tubes
IPC: H01J31/38
Filed: 1964-04-16
Abstract: 1,066,592. Television pick-up tubes. TOKYO SHIBAURA ELECTRIC CO. Ltd. April 16, 1964 [April 22, 1963 (3)], No. 15790/64. Heading H1D. An image pick-up tube includes a mesh electrode which is disposed adjacent the target electrode and is supported from the end of a cylindrical focusing electrode by the use of an insulating ring. An electron beam from the cathode (21), (Fig. 1, not shown), passes through grids (22) and (23), the three focusing electrodes (24), (25) and 26, Fig. 2, and the scanning electrodes (28) and (29), all mounted upon a set of glass or ceramic rods (27), and then passes through the electrode mesh 35 to strike the photo-conductive layer (15), the output signal from the conductive layer (14) being taken from the indium cold seal (16) of the end plate (12). Mesh electrode 35, Fig. 2, is supported from the enlarged end portion of focusing electrode 26 by the receipt within the latter of flange 41 of a metal ring, over the flange 42 of which is slid a glass or ceramic cylinder 30, into which is received the flange 43 of member 32, which itself receives flange 34 of the mesh support ring, the interposed spacer 36 extending to the envelope and protecting the target 13 from foreign particles within the tube. On assembly, members 31 and 32 are first attached to the cylinder 30 by inserting and welding metal pins 47, 48 through holes 45, 46-the flange 44 resiliently engaging the envelope wall-and flange 41 is then welded within electrode 26 prior to the insertion of electrode 33 with spacer 36 within member 32, and the cold sealing of the end-plate (12) of the envelope. A lens action is provided by maintaining the mesh 35 at a higher potential than the electrode 26. In a modification (Fig. 3, not shown), the ring 31 is dispensed with, and cylinder 30 is slid directly over a flange of reduced diameter at the end of electrode 26.
Patent GB-1139572-A (GB)
Title: Improvements in or relating to gas-blast circuit-breakers
Inventor: BARKER JOHN
IPC: H01H33/835
Filed: 1965-04-13
Abstract: 1,139,572. Gas-blast switches. ENGLISH ELECTRIC CO. Ltd. 12 April, 1966 [13 April, 1965, 4 March, 1966], Nos. 15819/65 and 97121/66, Heading H1N. A gas-blast circuit-breaker comprises relatively movable contacts 21, 28 in an enclosure 11, a reservoir 13 containing gas at a pressure of at least 500 lb/sq. inch, a pump 40 to draw gas from the reservoir, to compress it to a pressure which is at least 100 lb/sq. inch higher and to supply it to the enclosure to provide a blast at the contacts, and means to exhaust the gas-blast back into the reservoir. In the arrangement shown, on the operation of a trip valve 81, the space below a piston 33 is vented to atmosphere so that pressure gas acting on the upper side of the piston 33 moves the piston to open the contacts. At the same time pressure gas is supplied through the valve 81 to the space below a piston 49 which moves upwards so moving the pump piston 42 to force gas into the enclosure 11. This gas flows through the moving contact 28, a passage 36 and a filter 37 back into the reservoir 13. The closing of the circuit-breaker is effected on operation of a closing valve 84 which vents the space above the piston 34 so that pressure gas acting on the lower face of the piston 34 moves the piston to close the contacts. After each operation of the circuit-breaker, the valves are reset by mechanism (not shown) similar to that described in Specification 1,023,151, this mechanism being operated on completion of the movement of the movable contact 28. Figs. 2 and 3 (not shown) illustrate a circuit-breaker having two interrupting units mounted on the reservoir. A further reservoir may be mounted on the upper end of the or each enclosure 11, the blast gas exhausting through the fixed contact as well as the moving contact. Fig. 4 (not shown).
Patent GB-992162-A (GB)
Title: Improvements relating to brackets for roof-supporting and like bars in mines
Inventor: STUART JAMES DEREK
IPC: E21D17/03
Filed: 1963-04-23
Abstract: 992,162. Mine roof support brackets; clamps. STUART DESIGN & DEVELOPMENT CO. April 23, 1964 [April 23, 1963], No. 1587/63. Headings E1E and E2B. [Also in Division F2] In a mine support wherein a roof bar (not shown) is rolled forward alongside an alreadypropped roof bar 14 by rollers 8 on two or more brackets clamped to the bar 14, each bracket comprises jaws 12, 13 having undercut slots 10b, 11b slidably engaged by ribs 4a, Fig. 2, on the tapering edges of a wedge 4. The jaws 12, 13 are thus positively moved towards or away from each other according to the direction of movement of the wedge 4. The jaws are mounted on a rod 1 between stop plates 5, 7 and one jaw may be fixed to the rod. As shown in Fig. 2 one slot is perpendicular to the rod 1 and the other is inclined; in a modification both slots are inclined. The maximum and minimum widths of the wedge are such that it is held captive in the bracket.
Patent GB-554342-A (GB)
Title: Improvements in or relating to an insulating and sealing member for the connection between a spark plug and an ignition cable
IPC: H01T13/05
Filed: 1941-12-10
Abstract: 554,342. Two-part couplings. UNITED AIRCRAFT CORPORATION. Dec. 10, 1941, No. 15928. Convention date, Jan. 29. [Class 38 (i)] A connection between a sheathed ignition cable and a spark plug 10, comprises a ceramic body 36 within which the cable end 26 is secured and a conductive element 44 mounted gas tight in the body 36 and making connection between the cable core and a spring 46 that bears on the electrode 20 of the plug. A shoulder 39 on the body 36 is clamped by a ring nut 24 between the end flange 28 of the cable sheath 30 and the inturned end of the shielding cylinder 18 of the plug, gaskets 40, 42 being interposed. The body 36 fits within an insulating liner 22. The conductor 44 may be riveted into the body 36 and the cable end screwed into a threaded portion 38. Alternatively the conductor 44 is screwed into the body 36 and may either be tapered to enter the end of the cable which is secured by an annular rib in the body, or it may be hollow to receive a screwed metal ferrule fitted to the cable end.
Patent GB-739555-A (GB)
Title: Improvements in or relating to glassware forming machine with block type or one-piece molds
IPC: C03B9/193
Filed: 1954-05-28
Abstract: 739,555. Making glassware. EMHART MANUFACTURING CO. May 28, 1954 [Nov. 16, 1953], No. 15933/54. Class 56. In a glassware forming machine having a parison forming station A and a blow mould station B, with a neck ring 28 transferring the inverted parison to a blowing mould and turning it right way up in transit, the parison mould comprises a one-piece body 1. After the gob 10 has been deposited the bottom of the parison mould is closed and the gob pressed to a parison by a plunger 47a. After the parison has been blown to final shape in the finishing mould 35 the latter is lowered, but a plate 78 engaging the bottom of the blown article remains elevated to facilitate removal of the article.