baber/WOPTO huggingface dataset:
Patent GB-377887-A (GB)
Title: Improvements relating to envelope making machines
IPC: B31B19/00
Filed: 1931-12-24
Abstract: 377,887. Making window envelopes. CARLAW & SONS, Ltd., D. and CARLAW, D., 31, Finnieston Street, Glasgow. Dec. 24, 1931, No. 35676. [Class 94 (ii).] A machine for making window envelopes, of the type having a vertically reciprocating window gummer which descends on to the blank and helps to raise it by adhesion, is characterized in that the window gummer is horizontally adjustable in position to correspond with the position in which the window is located in the blank, and is further characterized by a stripper, through which the gummer is adapted to project to contact with the blank and which co-operates with the gummer to strip the blank therefrom, the stripper being adjustable in position in accordance with the position of the window gummer. The gummer consists of a carrier 10, reciprocated vertically by rods 11, from which depends an end gummer 13 and a side gummer 14, adjustable in slots 15, 15a, 18, 18a respectively to suit different sized envelope blanks. The window gummer 12 is carried from a rotatable disc 19, longitudinally adjustable in a slot 20, by a T-bolt 24 movable radially in a slot 23 in the disc. The stripper consists of two longitudinal frame members 26, 27, the former being adjustable in the slots 30 of brackets attached to the machine framing, and transverse bars 31 .. 34, sloping downwardly on their lower edges, adjustable in slots 26a, 27a of the members 26, 27. Allowance is also made for transverse adjustment by slots 31b, 34b the ends of the bars 32, 33 sliding in bolts 38. Further stripping plates 37 aid detachment of the side portion and these with the transverse bars 32, 33 move through spaces provided in the gumming elements. The position of the blank 29 is shown by dotted lines, the levers 32, 33 effecting the detachment of the window portion 29a.
Patent GB-814165-A (GB)
Title: Improvements in and relating to the photomechanical production of intaglio formes
Inventor: KAULEN ROBERT
IPC: G03F5/20
Filed: 1957-11-18
Abstract: 814,165. Photomechanical printing surfaces. BEKK & KAULEN CHEMISCHE FABRIK G.m.b.H. Nov. 18, 1957, No. 35827/57. Drawings to Specification. Class 98(2) Intaglio plates or cylinders are made by disposing a photosensitive coating directly on the body to be made into the forme, copying a picture and a screen separately and successively thereon, the screen copying being by light from every direction at inclined incidence so as to intentionally under-irradiate the screen dots, and etching from the exposure side with liquids of successively decreasing strengths so that etching starts from the centre of the screen dots and results in screen cells of dish-like shape with walls inclined to the upper edge of the doctor lands. As further described the body is of copper, the screen is copied by a plurality of light sources or by arranging relative movement between body and light, and etching is effected by successive use of ferric chloride of 42, 40, 38, 36 and 34 degrees Baume.
Patent GB-1406933-A (GB)
Title: Electric wave filter
IPC: H01P1/203
Filed: 1973-07-27
Abstract: 1406933 Microstrip filters STANDARD TELEPHONES & CABLES Ltd 27 July 1973 35832/73 Heading H1W Alternate sections of a multi-section microstrip band-pass filter are arranged on opposite sides of a common ground plane and coupled by lumped capacitors. Input quarter-wave L-shaped resonator 5A and intermediate T- shaped resonator 6B are arranged on a PTFE- fibreglass substrate 2A attached to one side of a ground plane (1). Intermediate T-shaped resonator 6A and output L-shaped resonator 5B are arranged on a further substrate (2B) attached to the other side of the ground plane. The limbs of adjacent resonators overlap and are coupled by adjustable co-axial capacitors 8A, 8B, 8C extending through the ground plane. In addition, each resonator is coupled to the ground plane for tuning purposes by a respective arrangement comprising an adjustable co-axial capacitor 9, a tab 10 and a screw 11. End walls 3A, 3B support co-axial input/output sockets 4A, 4B and shielding walls 12A, 12B are provided between resonators on the same side of the ground plane.
Patent GB-1022447-A (GB)
Title: Improvements in or relating to pressure vessels
Inventor: CROWTHER HERBERT
IPC: G21C13/036
Filed: 1961-10-05
Abstract: 1,022,447. Reactor pressure vessels. ATOMIC POWER CONSTRUCTION Ltd. Nov. 8, 1962 [Oct. 5, 1961], No. 35941/61. Heading G6C. [Also in Division B3] In a nuclear reactor pressure vessel the standpipe 4 is fixed in the vessel wall 1 by means of the sleeve 2. The standpipe and the sleeve are welded together at 5, 6, inside the vessel. As the weld is subjected to the high operating temperatures inside the vessel, stress relief is not required. Irradiation effects on the weld are annealed out at the operating temperatures.
Patent GB-1350531-A (GB)
Title: Method of producing 1,2-dichloroethane
IPC: C07C17/02
Filed: 1972-08-01
Abstract: 1350531 Dichloroethane SOC ITALIANA RESINE SIR SpA 1 Aug 1972 [17 Nov 1971] 35963/72 Heading C2C 1,2-Dichloroethane is produced by feeding gaseous ethylene and chlorine into a first reaction zone containing a boiling liquid reaction medium at atmospheric pressure consisting essentially of 1,2-dichloroethane and 0À05-3À0 grams per litre of a chlorination catalyst, the quantity of chlorine supplied being sufficient to convert 17 to 50% of the ethylene supplied. The gases emerging from the zone are cooled in order to separate the 1,2-dichloroethane from unreacted ethylene, the said 1,2-dichloroethane is recovered and rectified, the unreacted ethylene is supplied to a second reaction zone containing a liquid medium maintained at 0-40‹ C. at atmospheric pressure consisting essentially of 1,2-dichloroethane and 0À05-3À0 grams per litre of a chlorination catalyst, the quantity of chlorine supplied being sufficient to complete conversion of the ethylene and recycling the product of the second stage to the first stage of the reaction. Ferric chloride is the preferred catalyst.
Patent GB-1480378-A (GB)
Title: Method of producing bodies
IPC: B29C53/58
Filed: 1974-08-15
Abstract: 1480378 Winding bodies from webs to form spigot and socket ends IFAKAROSSERIEWERKE VEB 15 Aug 1974 [16 Aug 1973] 35975/74 Heading B8G To form a wound body, at least one stretchable web and an at least equal number of non- woven fibrous webs are simultaneously pulled from supply rolls arranged axially parallel to a rotating mandrel, the or each stretchable web is impregnated with synthetic resin, and the webs are wound on to the mandrel with the or each non-impregnated non-woven web resting on an associated stretchable web each of which is maintained in a flat, taut condition, the winding including helical winding of constant or non- constant pitch extending from the innermost layer directly to the outermost layer, or from one of the layers following the innermost layer possibly to the outermost layer, whereby the web edges form a step-wise or steadily tapering projection at one body end, and form a corresponding stepwise or steadily inwardly tapering sleeve at the other body end. Two or more body portions are simultaneously and adjacently wound on one winding mandrel, the projection and sleeve of adjacent bodies forming a rigid tapering connection. Separately wound bodies may be joined by adhesion at the projectionsleeve joint before or after resin hardening. The stretchable locks may be so applied to the mandrel that they always form the outer layer. Webs of foam material may be applied to the mandrel. The wound bodies may form containers, vehicle bodies and buildings, and may have inlays of, for example, sound-proofing material.
Patent GB-936029-A (GB)
Title: Improvements in antenna for broadcasting
IPC: H01Q21/20
Filed: 1959-10-23
Abstract: 936,029. Aerials. SUMITOMO ELECTRIC INDUSTRIES Ltd. Oct. 23, 1959 [Nov. 1, 1958], No. 36052/59. Class 40 (7). A radio aerial comprises a sheet conductor of finite area having at least one excitation device coupled thereto, the excitation device, or devices, each consisting of a conductor connected at its ends to spaced points on the sheet and remaining at a distance therefrom which is less than half the working wavelength. A feeder is connected into the excitation conductor so as to be effectively in series therewith. In a modification the ends of the excitation conductor are not connected directly to the sheet but to spaced points on a second, unbroken, energization conductor having its ends attached to separated points on the sheet, Fig. 5D (not shown). The shape of the excitation conductor may be varied, Figs. 5A, 5B and 5C (all not shown), but one convenient form is that shown in Fig. 4, where the coaxial feeder is effectively in series with the excitation conductor 2, 2<SP>1</SP>, at the point 3. The conductive sheet may be a flat sheet or it may be a cylinder or a tube of triangular or rectangular cross-section. In the case of the tubular sheets the spaced points at which the excitation conductor is (or conductors are) attached may be on a line parallel to the axis or in the same crosssection plane(s) according to the plane of polarization required for the energy radiated, Figs. 2 and 3 (both not shown). A stack or stacks, or similar aligned excitation devices parallel to the axis of the tube may be energized with suitable phase relationships to produce a desired radiation pattern. Fig. 6H shows four such stacks arranged symmetrically round a conductive sheet metal cylinder 1. Flat sheet conductors may also be energized by one or a plurality of stacks of excitation devices, Figs. 8 and 9 (not shown), or a plurality of devices may be arranged on a sheet as shown in Fig. 10, and energized with suitable phase relationships to produce circularly polarized radiation.
Patent GB-412218-A (GB)
Title: Improvements in or relating to the manufacture of hollow ingots and tubes
IPC: B22D7/04
Filed: 1932-12-21
Abstract: 412,218. Casting. JONES, E. F., Victoria Station House, Victoria Street, London. Dec. 21, 1932, No. 36222. [Class 83 (i).] Casting-machines; moulds ; castings, extracting.-A mould for casting hollow ingots, of the type in which a plunger and surrounding sleeve are lowered into the mould, is carried on a releasable support so that it may move downwardly under the pressure on the sleeve. Links 19 of a conveyer chain are connected by pivots 20, and support carriers 23 for the moulds 24. The chain is intermittently moved by a sprocket wheel 17 through a pawl and ratchet 28, a rod 29, and an electric-motor driven wheel 31. A mould 24, Fig. 2, screws into a holder 40 mounted for limited vertical movement in the link 19. Rotation is prevented by a plate 41 which is detachable together with the member 40 for removal of the mould. A plunger 36 and compression sleeve 70 are mounted coaxially of the mould in the framework 32, 33, Figs. 1 and 2, the sleeve being operated by pistons and cylinders 76, 77. A mould when beneath the plunger 36 is raised by a ram 48 in a cylinder 47, carrying a table 49 and a centralizing pin 50 engaging a corresponding recess in the mould base. In the upward movement of the ram, a cam surface 54 engages a roller 80 which, through links 81, 83, actuates a ratchet wheel 86 and the sprocket wheel 18 to slacken the conveyer chain slightly to facilitate centring. The sleeve 70 is then partially lowered to centre the upper end of the mould, the plunger 36 is lowered into the molten metal, and the sleeve 70 is then further lowered to compress the metal. Fluid is allowed to escape gradually from the cylinder 47 to allow a gradual falling of the mould to permit contraction of the ingot around the tapered portion of the mandrel. Upon solidification, the cylinder 47 is opened to exhaust and the mould moves downward under the action of the sleeve 70, and the ingot is stripped from the stationary plunger 36. An auxiliary cylinder lowers the ram 48 positively. Several plungers may be used seriatim to avoid overheating. The mould may be vibrated during setting. In a modification, the mould may comprise a lower section 124, Fig. 5, into which the metal is charged, and upper sections 125, 126 movable into position by hydraulic means 129, 130 to form the upper mould half into which metal is displaced by the plunger 36. The admission of oil to the various cylinders may be controlled by mechanism such as that described in Specification 408,013. Specification 381,790 also is referred to.
Patent GB-364679-A (GB)
IPC: B29D22/00
Abstract: 364,679. Moulding hollow rubber articles. INDIA-RUBBER, GUTTA PERCHA & TELEGRAPH WORKS CO., Ltd., 106, Cannon Street, and PHILLIPS, E. A., of India-Rubber, Gutta Percha & Telegraph Works Co., Silvertown, both in London. Oct. 10, 1930, No. 30364. [Class 87 (ii).] Hollow rubber articles are made from a length of rubber tube, which may be produced by wrapping strip on a mandrel, by extrusion, or by bending up from the sheet and pressing. One end of the tube is closed and shaped by pressing the material together and at the same time cutting away any surplus. The other end is then closed similarly so that the line of closure is at an angle to that at the other end. The closed blank thus formed is placed in a vulcanizing mould and expanded and cured therein in the usual manner. The application of the invention to the manufacture of rubber balls is illustrated. In this case the one end of the tube 10, Figs. 1 and 2, is closed along a semicircular line 12 which is in the plane of the axis of the tube and symmetrical with respect to the axis. The other end is closed similarly, as shown at 13, Fig. 3, the line 13 also being in the plane of the axis and symmetrical with respect thereto, but running at right-angles to the line 12. The inflating medium is placed inside the tube prior to the closing of the second end. Specification 229,004, [Class 87 (ii), Moulding plastic &c. substances], is referred to.
Patent GB-406452-A (GB)
Title: Improvements in condensate extraction systems
IPC: F01B25/00
Filed: 1932-12-28
Abstract: <PICT:0406452/III/1> <PICT:0406452/III/2> In a condensate extraction system for use on ships, including two condensers 1, 2 and two condensate pumps 3, 4 the suction branches of which are connected to the condensate outlets of the condensers by conduits 6, 11, a cross connection 15, Fig. 1, or cross connections 24, 25, Fig. 2, are provided between conduits 6, 11, non-return valves 7, 12; 26, 27 being provided to prevent flow of condensate from one condenser to the other thus ensuring that the suction head for either pump when working alone shall be maintained above the minimum.  The valves 7, 12 may consist of semi-balanced butterfly valve elements 20, 21 pivoted off-centre on vertical spindles 22, 23, the valves shutting automatically on initiation of reflux flow.  The pumps have isolating valves 9, 14 which are open when both pumps are working, a valve 16 in connection 15, or the valves 26, 27, which are of the screw-down non-return type, in connections 24, 25, being shut.  When only one of the pumps is working one of valves 9, 14 is shut and valve 16 or one of valves 26, 27 is opened.  The valve elements 20, 21 may be connected to dash-pot devices to prevent them slamming on to their seats when shutting.
Patent GB-861008-A (GB)
Title: Improvements in or relating to the tuning of cavity resonators
Inventor: GROVER ERIC HOUGHTON
IPC: H01P1/28
Filed: 1958-11-14
Abstract: 861,008. Tuning cavity resonators. STANDARD TELEPHONES & CABLES Ltd. Nov. 14, 1958, No. 36702/58. Class 40 (8). A tuner comprises a length of uniform hollow waveguide or coaxial line, a short-circuiting piston movable along the said length, and an element mounted on the said piston in such manner as to load the said waveguide or coaxial line with a shunt capacitance at a plane effectively a quarter-wavelength in front of the plane of the effective short circuit. This has the effect of providing a virtual short-circuit in front of the capacitative element, which virtual short-circuit may be located inside a physical barrier even though the piston and the capacitative element remain outside. The tuner may thus be used to tune a cavity resonator mounted inside a velocity-modulated tube in a position such that the tube envelope would restrict the movement of a conventional external tuning piston. In one form, Fig. 3, a rectangular waveguide 1 coupled to a cavity resonator 4 contains a piston 5 in the form of a box which makes contact with the broad sides of the waveguide via spring fingers 6. The front face of the box is formed by a capacitative diaphragm 7 having a seat 8 parallel to the broad sides of the waveguide, and the continuous back face 9 provides a short circuit. The axial length of the piston 5 is a quarter guide wavelength. In an alternative form, Fig. 6, a section of rectangular waveguide 1 contains a piston of circular cross-section comprising quarter-wave sections 10 and 11 joined by a quarter-wave section 12 of smaller diameter, such a piston presents a virtual short-circuit at the front face 13. A capacitative disc 14 is attached to the face 13 by a rod 15 a quarterwavelength long. A practical embodiment of this tuner is described together with its connection to a velocity-modulated tube (Figs. 8 and 9, not shown). A coaxial line type of tuner is also described connected to a velocitymodulated tube (Fig. 10, not shown). Specification 861,009 is referred to.
Patent GB-833101-A (GB)
Title: Improvements in or relating to coupling devices for tubular hoses
IPC: A47L9/24
Filed: 1957-11-26
Abstract: 833,101. Pipe couplings. ELECTROLUX Ltd. Nov. 26, 1957 [Nov. 29, 1956], No. 36789/57. Class 99(1). A coupling device 21, particularly for detachably connecting a flexible hose 10 to the opening 13 of a vacuum cleaner, comprises a stepped connecting sleeve 26 locked in position by two diametrically opposed locking members 24 and bearing in the coupled position against an annular flange 19 projecting into the opening 13, the free end of the sleeve 26, outwardly of the members 24, having a reduced taper to enable the device 21, on the release of the locking engagement of one of the members 24 while retaining engagement of the other member, to be removable from the opening 13 by a tilting movement about a surface adjacent the edge of the opening and located diametrically opposite the released member 24, the tilting movement being in the same direction as the actuating pressure on the released member 24. As shown, the end of the hose 21 is clamped between a tubular reinforcement 22 and a tubular shroud 23 which serves as a support for the members 24 formed by the bent front ends of leaf springs 25 secured to the shroud 23. The members 24 pass through openings in the sleeve 26 and in the locking position engage behind the flange 19. A rubber sheath 30 is fitted around the shroud 23 and the leaf springs 25 and is provided at its forward end 32 with a slide ring 33 of nylon which bears against the flange 19.
Patent GB-862133-A (GB)
Title: Improvements in or relating to electrical frequency generators
Inventor: ASHTON JOSEPH PHILIP
IPC: A61B5/12
Filed: 1957-11-26
Abstract: 862,133. Audiometers. AMPLIVOX Ltd. Nov. 12, 1958 [Nov. 26, 1957], No. 36798/57. Class 40 (4). [Also in Group VI] In an audiometer comprising a Hartley oscillator which energizes an earphone or a bone conduction transducer via a ladder attenuator, the switch which selects the frequency at which the oscillator is to operate also introduces a resistance appropriate to ensure optimum output from the oscillator into the load at that frequency. As shown, the wafers S1A to S1H of switch S1 make the necessary connections to complete the oscillator circuit for each frequency, the wafer S1D, S1E, or S1F introducing the resistance according as the transducer selecting switch S2 is set to select the right-hand earphone R, the left-hand earphone L or the bone conduction transducer BCT, respectively. The ladder attenuator LA has three ganged wipers, the one giving the required range for the frequency and transducer selected being connected up over S2B and S1H.
Patent GB-539183-A (GB)
Title: Improvements in or relating to filters for separating solid particles from gaseous media
IPC: B01D45/02
Filed: 1938-12-17
Abstract: 539,183. Filtering gases. LINDEROTH, E. T. Dec. 17, 1938, No. 36803. Convention date, Dec. 18, 1937. [Class 8 (ii)] Gas to be cleaned flows along a tapering channel 2 and is freed of dust by a filter plate 1, the bulk of the air passing in a clean condition through the plate while a minor part, enriched in dust, flows along the plate surface deposits its dust in a collector 4 and returns to the main current, the openings in the. plate having sides 8, Fig. 2, which face and converge towards the direction of flow. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specifications 539,187 and 539,188, and also apparatus of V filter form, the gas passing through the V towards a dust collecting pocket at the apex or flowing round the V towards its mouth through which the clean air passes. This subject-matter does not appear in the Specification as accepted.
Patent GB-810155-A (GB)
Title: Improvements in or relating to silk screen stencils
Inventor: CLAYDON EDWIN WILLIAM
IPC: B41C1/14
Filed: 1956-12-03
Abstract: 810,155. Stencils. SHELL RESEARCH Ltd. Dec. 3, 1957 [Dec. 3, 1956], No. 36881/56. Class 100(2) A silk screen stencil has a frame provided with three or more spring-loaded projecting feet spaced around that face of the frame which is normally placed against surfaces to be marked. The frame 1 is wooden and rectangular, 17 in. by 15 in., and 1“ in. deep, and the screen 2 is secured thereto by gluing round its edges, which are also covered by adhesive strip. Near each end of each longer side of the frame is a foot 3 consisting of a 7/8 in. long brass plunger 4, drilled through and tapped at its upper end and sliding in a brass sleeve 5. A screw 6 passes through an opening in a cover plate 7 screwed to the frame, and engages in the bore of the plunger 4, and between the plate 7 and the plunger is a small helical spring 9 to urge the plunger downwards, its downward limit position being adjustable by turning the screw, so as to project for example in. below the frame. The stencil is suitable for marking for example the end of a drum 22¢ in. in diameter and having an outward bulge of # in., fitting within the rim of the drum, each foot being pressed in as desired to bring the stencil into contact with the drum in the area of contact with a squeegee.
Patent GB-1488780-A (GB)
Title: Pressure indicators
IPC: G01L7/16
Filed: 1976-09-07
Abstract: 1488780 Pressure gauges HAYDEN NILOS CONFLOW Ltd 7 Sept 1976 36969/76 Heading G1L A pressure indicator comprises a housing 1 closed by a member 3 through which extends a bore 4 containing a piston 11 which abuts a sleeve 16 with a flange 18 against which spring 19 bears; the flange is tapered to form an indicator 22 viewed through a window 21 in the housing. The member 3 includes a flow limiter 6, a piston seal 10 and carries a guide 15 for the sleeve 16. The housing may be elongated to contain a plurality of the assemblies each comprising a member 3, pistons 11 and spring 19. The indicator is used to indicate the presence of adequate pressure in a hydraulic mine prop.
Patent GB-973689-A (GB)
Title: Improvements in or relating to fish hooks
IPC: A01K83/00
Filed: 1963-09-20
Abstract: 973,689. Fish hooks. J. V, G. GROVES. Sept. 20, 1963, No. 37115/63. Heading A1A. A fish hook 1 has an auxiliary barb 4 welded to its stem portion 2. The auxiliary barb 4 and the main barb 3 may be angled to the longitudinal axis of the stem portion 2.