baber/WOPTO huggingface dataset:
Patent GB-1263160-A (GB)
Title: Compressor cylinder unloader
Inventor: DEGROFF RICHARD CHASE
IPC: F04B39/10
Filed: 1969-05-16
Abstract: 1,263,160. Valves. DRESSER INDUSTRIES Inc. 16 May, 1969 [24 May, 1968], No. 25205/69. Heading F2V. [Also in Division F1] A reciprocating piston compressor has a cylinder which receives gas from a suction chamber 14 through passages 24 in an annular suction valve 18, the cylinder being unloaded when a control piston 41 is moved to uncover port(s) 42 in a tube 38 forming a continuation of the central bore 26 of the valve 18, whereby the cylinder is connected directly to the suction chamber. A vent passage 45 in the piston 41 balances the pressure on opposite faces thereof, thereby to reduce the force required for its displacement by a fluid actuator 48. The actuator 48 comprises a piston 57 fixed by a spindle 58 to the control piston 41 and movable in a cylinder 49 by fluid supplied through either port 65 or port 66.
Patent GB-183747-A (GB)
Title: Improvements in stockless anchors
IPC: B63B21/24
Filed: 1921-09-23
Abstract: 183,747. Clark, E. J. Sept. 23, 1921. Addition to 174,481. Anchors described in the parent Specification comprise separate arms 4 pressed against a wing plate 8 by a centrally - disposed jointing- block 3 in which the shank is swivelled. According to the present invention transversely-disposed aligned recesses in the contacting-faces of the joint block and the arms receive bolts 7 to lock the parts of the anchor together. The joint block 3 also extends laterally beyond the edges of the arm 4.
Patent GB-1452358-A (GB)
Title: Shackle for chains and the like
IPC: F16G15/04
Filed: 1974-06-07
Abstract: 1452358 Chain couplings EISEN-UND DRAHTWERK ERLAU AG 7 June 1974 [7 June 1973] 25404/74 Heading F2Q A shackle comprises a U-shaped body 2, having legs 9, 10, and a shackle pin 14 which carries in the space between the legs an insert 3 which defines with the pin 4 an eye 34 for a chain link and defines with the shackle body a larger eye 32 for a chain of larger section. The insert 3 is secured in position by a pin 5. In a modification, lateral keying protuberances 38 and recesses 37 are provided on the insert and shackle body respectively. In a further modification, longitudinal protuberances and recesses are provided.
Patent GB-263960-A (GB)
Title: Electric switch-gear
IPC: H01H33/52
Filed: 1925-10-12
Abstract: 263,960. British Thomson-Houston Co., Ltd., Trencham, H., and Wood, C. W. Oct. 12,1925. Switch gear arrangements; switches, interlocking. - An interlocking arrangement comprising a lever 22 is provided between the isolating switches 13, 14 of alternative circuits, for example those of duplicate bus-bars 11, which prevents both of the isolating switches being moved to open position at the same time while the circuit-breaker is closed but allows one or other or both of them to be put into the closed position. As shown in Fig. 1, the locking lever 22, which can be rotated by hand from the outside of the casing, engages a, shoulder 21 on the operating lever of one of the isolating switches and locks that switch against opening. The other switch, however, can be closed and when both switches are closed the locking lever may be rotated through a position in which it locks both switches closed to the other extreme position in which it locks the free switch and releases the hitherto locked switch. The released switch mav be brought to the open position and this, sequence changes over from one bus-bar to the other without breaking the supply circuit. Both isolating switches cannot be opened at the, same time while the circuit-breaker 15 is closed. To ensure this, the locking lever 22 can only be raised free of both operating levers 18, 19 by means of a lock 25 operated by a key 24 which is normally trapped in the circuit-breaker or its operating mechanism and is releasable therefrom only when the circuitbreaker is open and locked open. When the key is in use to raise the locking lever it can be withdrawn from the lock 25 only after turning the key back to the initial position (in which case the locking lever locks one or other of the isolating switches closed) or after fully operating the lock (in which case an arc member 27 on the locking member engages with notches in the operating levers 18, 19 in the switch open position of the levers). A further interlock is introduced in the form of a synchronizing device which operates a locking quadrant normally in engagement with slots in the operating levers to lock one or both of them in the off-position until the circuits with which they are associated are in synchronism.
Patent GB-472198-A (GB)
Title: An improved method of and means for electric heat treatment of toothed gears and other articles
IPC: H05B6/02
Filed: 1936-09-19
Abstract: 472,198. Electric heating for surface hardening. DENNEEN, F. S., and DUNN, W. C. Sept. 19, 1936, No. 25508. [Class 39 (iii)] In surface hardening a toothed wheel, splined shaft, or other ribbed power transmitting member 20, one or more inductor bars 25, 26, Fig. 1, are introduced between adjacent teeth to induce heating currents in the side faces and tops of the teeth after which quenching is effected. The bars 25, 26 are rotatably mounted and enclosed in a shell 29 with inlet and outlet connections 32, 34 for the quenching fluid. In a modification the inductor bars are perforated and form teeth on a wheel gearing with the wheel to be surface hardened. In Fig. 9 the inductor 85 is of similar contour to the wheel 89. It has perforations 87 and is arranged in a jacket 86 with a quenching fluid supply. In Fig. 6 a cylindrical inductor 59 has ribs 70 arranged opposite to the tops of the wheel teeth 57. The current passes through the inductor and the wheel in series but in opposite directions. The inductor is perforated and arranged in a jacket with quenching connections. Heat generated in the inductor is radiated to the wheel. Specifications 435,343 and 446,495 are referred to.
Patent GB-169895-A (GB)
Title: Ammonia driven engine acting according to a closed cycle
IPC: F01K25/10
Filed: 1920-09-04
Abstract: 169,895. Caruso, B. Sept. 4, 1920. Vapour engines. - In an aqueous ammonia power plant working on a closed cycle, the ammonia from a generator A passes through a pipe a and a superheater SA to a reciprocating-engine or turbine M, and exhausts into a helical coil and collects in a chamber C in a surface condenser B from which it is passed by a pump P through pipes e<1>, e<2> to a container E. The condensed ammonia is then supplied as cooling medium to the condenser, and passes through pipe t containing a heat insulator R to the generator A. A dome D mounted on the condenser contains a heat insulator Rx which permits the passage of ammonia gas, a heating-coil k, m, and a connection b controlled by a pump P to the pipe a. A uniform pressure, it is stated, is established in the parts B, D, A, and heat transference to the chamber B from the dome D and generator A is prevented by the insulators. The ammonia vaporized in B by the heat of the exhaust, is heated in D and passed by pump P to the superheater and thence to the engine.
Patent GB-728161-A (GB)
Title: Improvements in or relating to apparatus responsive to changes in oxygen content of a combustible gas
Inventor: STEPHENS STANLEY BERESFORD
IPC: G01N25/54
Filed: 1952-10-13
Abstract: 728,161. Gas burner apparatus. NORTH THAMES GAS BOARD. Oct. 13, 1953 [Oct. 13, 1952], No. 25590/52. Class 75 (1). Apparatus responsive to changes in the oxygen content of a combustible gas mixture, particularly for use for preventing an explosion in an electrostatic detarrer treating a combustible gas mixture, comprises means for introducing into a chamber the combustible gas mixture supplemented with a quantity of air normally insufficient to render the mixture explosive, but which renders it explosive should its oxygen content increase beyond a predetermined limit, a burner adapted to be fed from said chamber with said gas mixture supplemented with air and arranged to light back into the chamber when explosive conditions of the mixture prevail in the chamber, and means responsive to changes of pressure in said chamber and adapted to actuate an indicator or control device. Gas is supplied to a chamber 10 through a nozzle 29 to the outer end of which is screwthreaded a sleeve 31 having air inlet holes 32 which may be partly closed by rotating the sleeve on the nozzle. The chamber 10 has a hinged lid 11 formed with burner holes 12 and held closed by a latch 19 pivotally mounted on a bracket 21 on the side of the chamber 10. A pin 26 on an arm 27 of a switch 28, controlling an electrostatic detarrer, is engaged in a slot 25 in a hook 23 held by a spring 24 against a fulcrum 23 on the latch 19. Thus ifthe air-gas mixture is such as to cause lighting back from the burner holes 12 into the chamber 10, an explosion occurs in the latter which first causes to close a plate valve 14, carried beneath the lid 11 by a further plate 15, and then forces open the lid 11. The latch 19 is thus disengaged from the hook 23 which is drawn by the spring 24 to actuate the switch 28 to render the detarrer inactive.
Patent GB-954732-A (GB)
Title: A fastening means for a panelling structure for a ceiling, wall or similar surface
IPC: E04B9/26
Filed: 1960-07-21
Abstract: 954,732. Suspended ceilings; stud and socket fasteners. HUNTER DOUGLAS INTERNATIONAL CORPORATION. July 21, 1960 [Aug. 1, 1959], No. 25763/62. Divided out of 946,933. Headings E1V and E2B. Bearers 10, Figs. 5 and 6, for the support of ceiling or wall panels 4 are carried from joists 1 by fastening means 15 formed of strip material and so formed as to be displaceable between two positions relative to the joists so that the bearers 10 may be held in a position spaced as in Fig. 5 from the joists I to permit assembly of the panels 4 on to the bearers and so that the bearers 10 may be moved into a position close to the joists 1 as in Fig. 6 to secure the panels in their final position. In the form shown in Figs. 5 and 6 the fastening means 15 comprises a resilent head portion each side of which comprises two bent portions 16, 17 which serve to locate the fastening means in the required two positions within an aperture in the joist 1. Resilient leg portions of the fastening means engage within the bearer 10. In another embodiment, the fastening means 6 Fig. 4 comprises a pair of resilient legs each having a lip 12 and a curved portion 11 which locate the fastening means in the required two positions within the aperture in the joist 1. The head 7 engages within the bearer.
Patent GB-1129777-A (GB)
Title: Sulphoxide explosives
IPC: C06B41/00
Filed: 1967-06-05
Abstract: 1,129,777. Explosive and propellent compositions. H. DEHN. 5 June, 1967, No. 25763/67. Heading C1D. [Also in Division C2] Explosive and propellent compositions contain one or more hydrated salts of an inorganic oxygen rich acid, wherein the water of crystallization, has been replaced at least partially with an alkyl sulphoxide. Typical hydrated salts are Fe(ClO 4 ) 3 ; Fe(ClO 4 ) 2 ; Al(ClO 4 ) 3 ; Cr(ClO 4 ) 3 ; Zn(ClO 4 ) 2 ; Fe(NO 3 ) 3 ; Fe(NO 3 ) 2 ; Cr(NO 3 ) 3  and Zn(NO 3 ) 2 . Up to 6 of the waters in the hydration shell can be replaced by alkyl sulphoxides such as dimethyl sulphoxide, methyl ethyl sulphoxide, methyl propyl sulphoxide or (CH 3 ) 2 NCH 2 .SO.CH 3 . Preparation is by normal solvation procedures. The compositions may contain in addition ammonium nitrate, ammonium perchlorate, nitroglycerine, or nitromethane, and may also include combustion retardants.
Patent GB-246576-A (GB)
Title: Improvements in machines for cutting confectionery and the like
IPC: A23G7/00
Filed: 1924-10-29
Abstract: 246,576. Scrase, A. H. Oct. 29, 1924. Stream-cutting machines.-Confectionery &c., carried through the machine on trays by an endless chain t, is cut into strips or squares by knives a which can be rotated at different speeds, by gearing l<2>, a<5>, or l<6>, a<3>, Fig. 4, to suit different materials. For cutting sticky substances, the cutting edge moves at the same speed as the conveyer, and for cutting hard substances, the knives are rotated at a higher speed. To prevent the material rising from the trays and to keep the knives clean, clearing bars g are arranged between the knives and adjacent an idle or driven check roller j, and scrapers f are also arranged between the knives. The clearing bars and scrapers substantially fill the spaces between the cutting discs, and the scrapers form a table to receive flour, icing sugar, &c. The clearing bars, check roller, and scrapers are adjustable. The clearing bars and scrapers are carried on supports h on bearers h<1> pivoted at h<2> to the frame and at h<3> to vertically adjustable pillars h<4>. The supports h are adjustable horizontally by means of set screws h<7>. The shaft carrying the knives is adjustable vertically and its bearings are mounted on springs. For cutting into squares, the mechanism is duplicated, as shown in Fig. 1, and the trays are turned through a right-angle by a pivoted stop v<3> hold in their path by a spring v<2>. The tension of the conveyer chain is adjusted bv means of a screw s<1>. The feed end of the machine is squared at x so that a tray placed flush with the end will be in a position to engage with the projections on the chain t. Angle guides u prevent the trays from rising. A cover w, w<1> is arranged over the cutting mechanism and the part w<1> may be raised to introduce flour or icing sugar. The roller j may be replaced by a series of short rollers which may be between the knives.
Patent GB-650424-A (GB)
Title: Improvements in and relating to the manufacture and attachment of turbine and like blading
Inventor: WALKER DANIEL NORMAN
IPC: F01D5/30
Filed: 1944-12-22
Abstract: 650,424. Turbine blades. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Dec. 22, 1944, No. 25830. [Class 110(iii)] Hollow sheet metal blades 5, Fig. 1, are attached to an axial flow turbine rotor 1 by means of peripherally spaced axially disposed sheet metal wall portions 6 each of which has a deformation 7 in the peripheral direction produced by pressing or stamping, which engages a corresponding formation 3 in an axially disposed slot 2 in the rotor and in which it is held by spacing means 8. Hollow sheet metal blades are defined as blades made of thin flat sheet or thin tube. The spacing means 8 may be cylindrical, hollow or slightly tapered pins. When the pins are hollow they may form passages for cooling air through the roots. The ends of the pins may be riveted over to prevent axial movement of the blades. In the modification, Fig. 3, the wall portions 6 are connected by a third wall 9 which renders the root more rigid and is also used to prevent axial displacement. Tabs 10 forming extensions of the walls 6 may also be used to prevent axial movement, being welded or otherwise attached to the rotor. The wall 9 may be formed with indentations 11 which space this wall from the flank of the rotor so as to form a passage for cooling air into the interior of the blade. In a further modification, a fourth wall similar to the wall 9 is added to the root. This fourth wall may have corrugations which engage similar corrugations on the flank of the rotor to strengthen the root fixing. In this arrangement, the spacing pins 8 are totally enclosed. In another modification, the slots 2 only accommodate one thickness of sheet metal and one side of the pin 8 is welded or otherwise attached to the rotor 1. In a further modification, Fig. 9, the root anchorages 3 are of dovetail formation and the walls 6 of the roots are inclined to the radial direction and held against the side of the anchorage by a tapered plug 8b. The lower edges of the root walls 6 have inturned flanges 6a which engage beneath the plug 8b so that centrifugal force acting on the blade and plug tightens the root fixing. The rim of the rotor may be indented between the anchorages at 14, Fig. 1, and this together with the use of hollow spring pins 8 allows resilience in the root fixing which enables a better distribution of the loads on the rotor to be obtained. The invention also includes blades which have root anchorages which are not strictly axial but are slightly inclined to this direction. Specification 650,437 is referred to.
Patent GB-1480411-A (GB)
Title: Arrangements for converting a radiation pattern into electric signals
IPC: H01L27/146
Filed: 1974-06-11
Abstract: 1480411 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 11 June 1974 [14 June 1973] 25834/74 Heading H1K Each light-sensitive element of an image sensor or character recognition device comprises a junction-gate field effect transistor having one gate region carrying an external electrical connection and another gate region which floats electrically. A charge is placed on the latter region by biasing the former to above the voltage at which punch-through occurs between the two gate regions across the channel region (preferably the voltage is about twice that required to obtain punch-through) and on reducing the potential on the contacted gate region to zero sufficient charge remains on the floating gate region to just pinch-off the channel. In the absence of incident light during an integration period the channel remains pinchedoff and no source-drain current flows during a subsequent read period. The absorption of light in the vicinity of the depletion region shutting off the channel, however, causes some of the charge on the floating gate region to leak away, reducing the stored potential below threshold by an amount dependent upon the integrated light intensity and allowing a source-drain current of corresponding magnitude to flow during the subsequent read period. The floating gate region is recharged by punch-through from the contacted gate region at the start of each cycle. Fig. 2 illustrates one embodiment of an array of elements in which the floating gate regions are constituted by P type buried regions 4 between an N type Si substrate 23 and an N type epitaxial layer 24. The contacted gate regions comprise annular P type regions 13 (Fig. 2 does not show the contacts) surrounding drain regions 7/19 and surrounded by source regions 8, 22 indicates the extent of the depletion region around the floating gate region 4 in its charged condition. Light is incident on the upper surface, and the regions 4 are larger in area than the regions 13 to ensure that sufficient light reaches the former. Two- and threedimensional arrays are described, with corresponding metallization patterns. Fig. 11 shows an array of elements in which the floating gate regions comprise annular surface regions 54 while the contacted gates comprise buried regions 55 contacted at the surface via connection regions 58. The contacted gates may be constituted by Schottky barriers rather than by PN junctions.
Patent GB-1440382-A (GB)
Title: Production of paper pulp from refuse
IPC: D21B1/02
Filed: 1973-05-31
Abstract: 1440382 Pulping by agitation R UTI R ARL 31 May 1973 [22 Feb 1973] 25991/73 Heading B1C [Also in Division D2] A pulper 1 in which paper waste is pulped in water is connected to a sorting apparatus 7 by a first pipe 8 for the pulped material, and a second pipe 4, having a periodically operable reciprocable slide, valve 5, for the unpulpable material. The sorting apparatus 7 has a perforated screen through which the pulp passes to a tank 10, and a conveyor 13 for the foreign matter.
Patent GB-463245-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J65/04
Filed: 1935-09-20
Abstract: 463,245. Electric discharge apparatus; ozonizers; signs. QUAIN, J. R., and QUAIN, E. J. Sept. 20, 1935, No. 26094. [Class,39 (i)] [Also in Group XVIII] An electric discharge device for the purpose of ozonizing air and advertising comprises a sealed vessel of translucent insulating material such as silica or glass formed as or bearing advertising or display matter and containing a conducting gas such as neon or argon, an internal electrode sealed into the vessel and a reticulated external electrode, preferably of non-oxidizable material. The advertising or display matter may be painted or burned on the surface of the vessel, or the vessel may be formed of appropriate shape, or the reticulations of the outer electrode may be stencilled. The vessel may be of elongated tubular or flat box-shape.
Patent GB-150966-A (GB)
Title: Improvements in photographic copying apparatus
IPC: G03B27/02
Filed: 1920-09-10
Abstract: 150,966. Konieczny, A. Sept. 10, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Printing - apparatus.-A contact printing-box has a transparent pressure plate 5 and a slot 16 is provided below the transparent negative support 2 through which it is possible to manipulate any means for modifying the printing action of lamps 18. The pressure plates comprise framed glass plates 5, hinged together and with a front transparent covering 6. The back portion is hinged to a spring-pressed bar 9 which is slidably adjustable in a frame 12 and clamps the negative 3 on the support 2. The printing lamps 18 are rotatable and have a reflecting foil 19 so that direct or diffused printing light can be used. A non-actinic red lamp 23a is also included in the box. The printing-lamps are switched on by a switch 25 when the pressure plate is closed. The slot 16 is normally covered by a curtain and below the slot is a frosted plate 15. In a modified construction the clamping bar 9 is pivotally mounted and a printing lamp is enclosed in an attached housing fitted with reflectors.
Patent GB-888340-A (GB)
Title: Improvements relating to trays for filter presses
Inventor: BOWERS SAMUEL FRANK
IPC: B01D25/21
Filed: 1959-07-30
Abstract: 888,340. Filter presstrays. PROGRESS ENGINEERS Ltd. Sept. 23, 1960 [July 30, 1959], No. 26110/59. Class 46. A filter presstray 10 has a drainage channel 16 depending from the bottom of it so that liquid from the faces of the tray passing through the lowest set of holes 15 will be conducted to one or more discharge points 18. Similar channels may be provided along the top and down the sides of the tray. The invention preferably is applied to the filter presstrays disclosed in one or more of the following Specifications 795,167, 820,668 and 842,795.
Patent GB-532789-A (GB)
Title: Improvements relating to adjustable indicators for use on machine tools such as capstan and turret lathes
IPC: B23Q17/22
Filed: 1939-09-20
Abstract: 532,789. Indicating-apparatus. WARD & CO., Ltd., H. W., and WILLIAMS, W. T. Sept. 20, 1939, No. 26259. [Class 106 (iv)] [Also in Group XXII] An indicator for a machine tool such as a turret lathe can be adjusted relatively to a feed slide or to a disc a which revolves during feed movements relatively to a reference mark and comprises a sheet metal bracket e having a projection g engaging a groove d within the flange o of the disc or slide the bracket being pivoted at k to an indicating finger i formed with a projection f engaging another groove c in the disc or slide. The device is secured by a screw m located between the finger and the bracket, the screw being slackened to permit adjustment of the indicator to any required position.
Patent GB-952114-A (GB)
Title: Improvements in or relating to thermo-electric generators
IPC: H01L35/22
Filed: 1961-07-20
Abstract: 952,114. Thermocouples. NIPPON ELECTRIC CO. Ltd. July 20, 1961 [July 21, 1960; Oct. 17, 1960; Nov. 18, 1960], No. 26290/61. Heading H1K. A thermo-electric generator element is produced by finely powdering P-type and N-type semi-conductor material, e.g. chromium silicide and cobalt silicide, the powder being placed in a mould, one portion of the mould being filled with, e.g., P-type material, a second portion being filled with, e.g., N-type material and the intervening portion being filled with a mixture of the two materials, the powder is then pressed and sintered to form a composite element including a PN junction.