baber/WOPTO huggingface dataset:
Patent GB-1381886-A (GB)
Title: Vehicle shock absorber
IPC: B60G17/08
Filed: 1972-01-11
Abstract: 1381886 Shock absorbers; valves J SIRVEN 11 Jan 1972 [13 Jan 1971] 1193/72 Headings F2S and F2V  Flow from the working chamber 2a of a telescopic shock absorber (only the bottom half of which is shown) on compression movements is partly by way of a main valve 13 which opens when a certain pressure is reached in the working chamber 2a, a predetermined proportion of the total liquid discharged from the working chamber subsequently flowing to a reservoir 36a through a control means 34 which establishes a control pressure (in space 18a) which reduces the pressure necessary for the main valve 13 to open.  On compression movements, liquid is discharged from the working chamber 2a to the space 18a through a passage 17 or, if the pressure in the working chamber is sufficient, past the valve element 13 which is moved from its seat against the bias of a spring 27. Some of the liquid discharged is returned past opened valve 21 to the cylinder chamber (26, Fig. 4, not shown) above the piston (1) but a predetermined proportion, corresponding to the piston-rod volume, is compelled to flow through the very restricted passage 34 in a piston 22 on its way to the reservoir 36a. A pressure difference, depending on the speed of the working piston (1) is therefore set up across the piston 22, and the control pressure established in the space 18a acts to reduce the bias of the spring 27 on the valve element 13, so that the valve opens at a reduced pressure in the working chamber 2a. Should the pressure difference across the piston become too great, a relief valve 32 opens. On extension movements, the valves 13, 21 and 32 are closed, and valves 30, 15 and a non. return valve (9) in the working piston (1) open to supply liquid to the chamber 2a. The ball valve element 13 may be replaced by a cone connected to the control piston 22. In the embodiment of Figs. 7 and 8 (not shown) the discharge passage 17 is replaced by passages (110-116) in the working piston (101). The arrangement for supporting the main valve element is such that the control pressure pulls, rather than pushes, the spring away from the valve element. All the parts of the shock absorber inside the casing are movable relative to it. On compression movements, this relative movement opens a valve (140) situated between the reservoir (145a) and the space (128a) beneath the control piston (129), so as to allow flow to the reservoir. On expansion movements, the relative movement of casing and parts closes the valve. In the embodiment of Fig. 10 (not shown) the working piston is resiliently connected to its piston-rod by a block of elastomer. In the embodiment of Figs. 13 and 14, the piston-rod end-connection is such that extra liquid is delivered to the cylinder on compression movements, and so the control pressure builds up more quickly than it would otherwise.
Patent GB-1447983-A (GB)
Title: Detector for electron microscopes
IPC: H01J37/244
Filed: 1973-01-10
Abstract: 1447983 Electron microscopes NATIONAL DEVELOPMENT CORP 3 Jan 1974 [10 Jan 1973] 1278/73 Heading H1D An electron microscope detector, mountable adjacent a specimen and coaxially with respect to the beam, includes a channel multiplier plate 1 mounted between a pair of apertured electrodes 11 and 12 by means of which a potential may be applied across the plate, together with at least two separate detector electrodes 9, 9<SP>1</SP> for receiving the output of the multiplier, and a grid electrode 13 on the side adjacent the specimen to select the energies of electrons reaching the channel plate. The complete assembly, the separate elements of which are supported or printed on insulating plates, is mounted within an earthed aluminium holder 2 with a lid 3, a stainless steel central cylinder 6 shielding the incident microscope beam 8 which passes through the assembly in the reflection mode. By choice of the potentials applied to the grid 13 and the other electrodes, either both reflected primary and secondary electrons are detected, giving a signal substantially indicative of the latter due to their greater number, or reflected primary electrons only may be detected. This choice, together with the choice of adding or subtracting the signals obtained from the detector electrodes 9, 9<SP>1</SP> permits examination of surface topography, surface electric and magnetic fields, and atomic number analysis of the specimen material. The detector electrodes 9, 91 may, in a modified arrangement (Fig. 2, not shown) be cf annular form, rendering the detector suitable for the transmission mode.
Patent GB-713790-A (GB)
Title: An improved non-token machine for the control of trains and like vehicles between stations
IPC: B61L23/12
Filed: 1952-01-16
Abstract: 713,790. Railway signalling systems. SCHOOR, M. C. VAN. Jan. 16, 1952 [Jan. 17, 1951], No. 1322/52. Addition to 704,767. Class 105 The railway signalling system of the parent Specification for single line traffic permitting a following shunting train or working gang to enter into the section under a token authority releasable after a through train has already been sent into the section and the entrance signal therefor has been returned to the stop aspect or after the usual permission from the far station for train travel thereto has been given but without the departure instrument being operated to the full extent required for the through travel signal to be released for being manually set to the clear aspect is modified by the two-way switch relay device SR of the parent Specification, which is wholly electrically operated by the two windings P, Q, being substituted by a mechanically operated and electrically maintained two-way switch relay device SRa. The single winding PQ of this device SRa is only able to hold the armature 200 in its raised position after this has been mechanically raised by a finger 206 of a member 203 turning on an axle 204 when a second finger 207 has been rocked by a pin 210 projecting from the member 16 (of the parent Specification) axially slidable in and turnable with the instrument commutation shaft 5. The axial inward movement of the member 16 brings the pin 210 into registry with a hollow curved portion of the finger 207; rotation of the member 16 causes, as shown in Fig. 2, downward movement of the pin 210 to depress the finger 207 to give 70 per cent. of the required upward movement to the armature 200; the final axial outward movement of the member 16 causes, by the pin 210 passing away from the hollow of the finger 207, a further lift of the armature 200 which is sufficient to raise the contact arm 201 into engagement with the contact X whereupon the winding PQ is energized to maintain' the armature raised. With the contact arm 201 on contact X the lock on the signal lever is released by the winding TCL being energized; when the signal lever is moved to clear the signal the contact 202-TS is opened to de-energize the winding PQ whereupon the contact arm 201 drops on to contact Y and thereafter by depressing the push Z the winding SLC is energized to permit the token-holding shaft to be turned. It may be noted that contacts Sw4 and Sw5 are included in the feed line to the winding PQ to verify that the commutation shaft 5 is at reverse and that the token-holding shaft 71 (of the parent Specification) is at the " token-in " position. On restoration of the instrument and the axial return and rotational movement of the member 16 of the commutator shaft the crank pin 210 engages below the arm 207 and tem-. porarily reversely pivots the member 203 against the action of a return leaf spring 209.
Patent GB-696302-A (GB)
Title: Preparation of arc welding flux compositions
Inventor: STRINGHAM LEONIDAS KEEVER
IPC: B23K35/362
Filed: 1951-01-17
Abstract: The flux composition of the parent Specification is modified in that the binder is formed in situ during heating by reaction of silica with the corresponding alkali silicate hydroxide or carbonate at a temperature below the melting point of the fluxing material. Specification 692,772 also is referred to.
Patent GB-538194-A (GB)
Title: Improvements in the stretching of cellulose derivative filaments and in the productio n of staple fibres
IPC: D01F2/28
Filed: 1940-01-23
Abstract: 538,194. Artificial filaments, fibres &c. DREYFUS, H. Jan. 23, 1940, No. 1345. [Class 2 (ii)] [Also in Group IX] Filaments of cellulose acetate or other organic derivative of cellulose are subjected to a stretching treatment when in a softened condition and in the form of a sliver. Stretching may be effected in the presence of steam or hot water. The sliver may pass in non-slipping contact with nip rollers in an end chamber containing air or other fluid under pressure prior to passing through a chamber containing steam or hot water in which it is stretched. The sliver may be in untwisted or lightly twisted state. The stretched sliver may pass into a rotating container through a funnel and its passage through the funnel may be assisted by blowing a jet of air or passing a stream of water through the funnel. The sliver may be built up from several smaller bundles of filaments produced by dry or wet spinning. It may be built up from a number of bobbins, cheeses, or other packages mounted on a reel. The stretched sliver may be subjected to a cutting operation and converted into staple fibre. It may be wound into balls or coiled in sliver cans and transported to a cutting machine, or it may be led directly from the stretching device to the cutting machine. The staple fibres may be treated with an antistatic finish and may be dyed. They may be spun with cotton or wool fibres. The stretched sliver or the staple fibres may be subjected to a shrinking operation, e.g. in presence of methylene chloride or ethylene dichloride dissolved in a non-solvent organic liquid such as benzene, toluene, or xylene, or in presence of an aqueous solution of acetone, in order to increase their extensibility or to impart a crinkle. The stretched sliver or the staple fibres may be subjected to complete or partial saponification. Specifications 438,584, 438,585, 438,586, 438,587, 438,656, 443,707, 443,773, 465,780, 473,600, 479,050, 488,794, and 512,800 are referred to.
Patent GB-288384-A (GB)
Title: Improvements in and relating to duplicating with the aid of stencils
IPC: B41N1/24
Filed: 1927-01-17
Abstract: 288,384. Gestetner, D. Jan. 17, 1927. Stencilling.-To facilitate mounting one or more sheets of porous paper, such as Yoshino paper, on a duplicating-machine between the stencil and the stencil-carrier for the purpose of reducing the quantity of ink delivered through the stencil, a sheet of relatively stiff paper, preferably greaseproof paper, is associated with the porous sheets so that all the sheets are in temporary adhesive connection over substantially the whole of their adjacent faces. The invention is particularly applicable to duplicating-machines of the type in which a greasy ink is employed and the stencil is carried by a silk band passing over inking-rollers. The adhesive consists of a non-drying or non- hardening or slow-drying or slow-hardening material, the example given being mineral jelly. The porous sheet is fixed to a heading so as to engage the stencil fastening devices, and the stiff paper is detachably connected to the heading so that after the sheets have been mounted on the stencil carrier the stiff paper may be peeled off, preferably after the machine has been operated to ink up the porous sheet.
Patent GB-741046-A (GB)
Title: Improvements in or relating to methods and devices for effecting centrifugal separation
IPC: B04C5/13
Filed: 1952-01-18
Abstract: 741,046. Centrifugal separators. VICARD, P. G. Jan. 18, 1952 [March 22, 1951; Nov. 14, 1951], No. 1494/52. Class 23. In a separator for removing a heavier substance from a fluid, the mixture is supplied to a separating chamber a by a tangential inlet b and fluid is withdrawn from the chamber through a slit f extending along the whole length of a central fluid withdrawal tube e, means being provided to transform the rotational flow in the chamber to axial flow in the tube. The flow transforming means is a series of vanes g in the slit, which is of helical form and is shielded by a helical vane h. The fluid may be withdrawn from either end of the tube. In a modification, Fig. 4 (not shown), the vane is formed to provide a convergent-divergent passage between the vane and the tube to prevent finely divided particles of the heavier substance passing through the slit with the fluid.
Patent GB-939684-A (GB)
Title: Improvements in or relating to cartons
Inventor: DOWIE ALBERT WILLIAM
IPC: B65D85/32
Filed: 1959-01-15
Abstract: 939,684. Egg Cartons. KOBOX Ltd. Jan. 4, 1960 [Jan. 15, 1959], No. 1525/59. Class 18. An egg carton having upper and lower inset closure panels 113, 82 with apertures 132 through which the eggs project, has an internal transverse reinforcement constituted by folded central portions 115, 116 of one of the closure panels. The body of the carton is formed from a single blank with side panels 84, 85 and end panels 98, 104 the side panels having apertures 134. The reinforcement 115, 116 is formed in a separate cover panel, Fig. 6, with flaps 120-123 secured to the side panels. Strengthening ribs 96 are provided at the ends of the carton. A transparent plastic sheath may enclose the filled carton.
Patent GB-535678-A (GB)
Title: Improvements in or relating to the manufacture of diolefines from alcohols and aldehydes
IPC: C07C1/207
Filed: 1940-01-25
Abstract: 535,678. Di-olefines. ISTITUTO PER LO STUDIO DELLA GOMMA SINTETICA, MAXIMOFF, A., and CANONICI, O. Jan. 25, 1940, No. 1551. Convention date, Feb. 15, 1939. [Class 2 (iii)] Di-olefines are made by heating an aliphatic alcohol with an aliphatic aldehyde in the presence of aluminium sulphate or basic aluminium sulphate as a catalyst. The catalyst may be carried on a support, e.g. pumice or kieselguhr, and the mixture of reactants may be diluted with an inert diluent, e.g. the vapour of water or benzene. In examples, butadiene and piperylene are obtained from acetaldehyde and ethyl or isopropyl alcohol.
Patent GB-588308-A (GB)
Title: Improvements in and relating to rotary biscuit moulding machines
IPC: A21C11/08
Filed: 1945-01-19
Abstract: 588,308. Rotary biscuit-moulding machines. PATERSON, J. C., and BAKER PERKINS, Ltd. Jan. 19, 1945, No. 1609. [Class 87 (ii)] [Also in Group XXXIV] The extraction roll is mounted.in displaceable bearings and is pressed against the die roll by a leverage device which displaces the bearings, the leverage being subjected to yielding or resilient pressure by adjustable stressing means. Fig. 1 shows an arrangement in which the bearings 3 of the extraction roll 2 are urged upwardly by a weight 12 slidable on one arm 11 of a bell-crank lever pivoted at a fixed point P on the machine, the other arm 10 tending to straighten a toggle 5, 6, which engages the bearings. There is one weight, lever and toggle at each end of the roll 2: or two bell-crank levers may be operated by a single weight. The pressures at both ends of the roll may be equalised by means of a lever device. In a modification, Fig. 3, the bearings 20 are carried by levers 21, each lever being acted on by a toggle 24, 25, and weighted lever 28, 29. The arm 28 may be connected by a link to the toggle hinge. One weighted lever may actuate both toggles. When the levers 21 are braced together, a single toggle may be used. In Fig. 4, weights 35 tend to straighten the toggle. In any of these forms, adjustably-stressed springs may replace the weights.
Patent GB-846659-A (GB)
Title: Hot water boiler
IPC: F24H9/12
Filed: 1959-01-16
Abstract: 846,659. Hot-water boilers; water-supply and delivery arrangements. ORR & SEMBOWER Inc. Jan. 16, 1959 [Jan. 22, 1958], No. 1710/59. Class 64(1) A horizontal, cylindrical boiler, having a combustion tube 14, Fig. 3, in a water space which also contains tubes 16 below and on each side of the tube 14 for passing the flue gases back and forth, has the water inlet 18 at the middle of its top with a flat tubular endpiece 22 below the water level 20 and with two opposed outlets 24 which direct the incoming water to the sides of the boiler. The outlet 30, Fig. 2, has a flange 32 bolted on a seal 36 on the flange of a tube 26 and is also located at the top of the boiler, between the inlet 18 and one end. It has a baffle 44 spaced from its lower opening 42. A nipple 38 on the tube 26 is for the mounting of a valve by which gas or steam may be vented from the boiler or by which inert gas may be introduced. Instead of there being an expansion space above the cold-water level 20, the boiler may be filled and a separate expansion tank provided.
Patent GB-304320-A (GB)
Title: Turbine driven locomotive
IPC: F01K15/02
Filed: 1929-01-18
Abstract: 304,320. Aktiebolaget Ljungstr÷ms Angturbin. Jan. 19, 1928, [Convention date]. Interlocking and guarding against wrong movement,-The toothed reversing gear of a turbine locomotive is controlled by an arm 34 locked in either of its gear positions by means of a rod 40 controlled by a pedal 41, this pedal being so connected to the steam admitting means that the latter can only be operated when the pedal is free and the gears properly meshed. The reversing gearing is carried in a casing 10 movably mounted relatively to the turbine and comprises two eccentrically-mounted gear wheels 31, 32 controlled by a hand-wheel 38, screw-gear 36, rod 35 and the arm 34.
Patent GB-283741-A (GB)
Title: Improvements in and relating to fuse compositions and to fuses for shells
IPC: F42C9/12
Filed: 1927-01-21
Abstract: 283,741. Curtis's & Harvey, Ltd., and Grimwood, A. J. Jan. 21, 1927. Projectile. fuzes. - Time fuzes are loaded with a form of black powder in which all or part of the usual charcoal ingredient is replaced by " cuprene," a condensation product of acetylene, which is described in Specification 146,258 [Class 9 (ii), Torpedoes &c.], for use in explosives. This powder is firmly compressed in the grooves d of the usual rings c, which may be made of brass, or of aluminium alloy with brass lined grooves.
Patent GB-276225-A (GB)
Title: A luminous cap applicative to the exposed surface of the operating members of electric switches for the purpose of determining their positions in partial or complete darkness
IPC: H01H9/18
Filed: 1927-01-22
Abstract: 276,225. Holmwood, C. H. Jan. 22, 1927. Indicators.-To render it visible in the dark the operating member of a switch is fitted with a detachable cap of metal or vulcanite &c. in a cavity in which is secured a lens or disc, a layer of luminous substance, e.g. radium bromide, being arranged beneath the lens or disc. The cap may be clipped or screwed directly on to the operating member, or alternatively on to a sheath which surrounds the operating member. In the case of a tumbler switch the sheath may comprise two hollow hemispheres which fit round the tumbler knob and are held together by the cap.
Patent GB-983991-A (GB)
Title: Chimneyless heating apparatus
IPC: F24C15/00
Filed: 1962-01-19
Abstract: 983,991. Balanced flues. H. VAILLANT, [trading as JOH. VAILLANT KOMM.-GES.]. Jan. 19, 1962 [Jan. 20, 1961], No. 1986/62. Heading F4W. In a gas-fired domestic heating appliance 1 with balanced flues, the rectangular flue duct 3 and rectangular air ducts 6 and 7 leading to a recuperator chamber 2 have a height corresponding to the height of one course of bricks. A baffle 8 is fitted to the exterior of wall 4 to protect the ducts from sudden draughts. The number of ducts may be varied, Figs. 4-7 (not shown), and may be offset to allow insertion of mortar. The appliance may be liquid fuel fired and the recuperator may be omitted.
Patent GB-825283-A (GB)
Title: Improvements in suspender clips
IPC: A41F11/02
Filed: 1955-01-22
Abstract: 825,283. Clips. EDGINGTON, H. A. April 20, 1956 [Jan. 22, 1955], No. 1994/55. Class 44 A suspender clip comprises a pair of elongated lateral beaded clamping members a, b carried on the lower ends of a pair of longitudinal members c, d, joined at their upper ends and adapted to be acted upon by a sleeve or slider e movable to positions for clamped engagement or release, respectively, of the lateral members, the longitudinal members being respectively, substantially rigid and sprung and the lateral members being rubber covered and curved about their longitudinal and transverse axes. The slider may be constituted by a button slidable along slots in the members c, d.
Patent GB-1003541-A (GB)
Title: Improvements in or relating to pivot joint assemblies
IPC: F16C33/74
Filed: 1963-01-16
Abstract: 1,003,541. Pivots. THOMPSON RAMO WOOLDRIDGE Inc. Jan. 16, 1963 [March 8, 1962], No. 2013/63. Heading E2F. In a pivot joint comprising a socket 11 with a reduced diameter neck 22 and a stud having an enlarged head 19, 20 positioned inside the socket at the end remote from the neck and a shank 15 which passes through the neck and is secured to a link member 12, the shank is surrounded by a plastics liner 25 non-rotatably mounted in the socket and having a flange 26 seated against the stud head and an unstressed length greater than the distance between the head and the link 12 so that when the link is assembled on the stud the liner is forcibly shortened and creates a seal between the link and the liner. The plastic is preferably polythylene, nylon or a high molecular weight polyamide. The outside surface of the liner is provided with a plurality of longitudinal ribs 25b (not shown) which co-operate with a resilient bushing 21 to prevent relative rotation between the liner and the bushing, and the inside surface 25a of the liner has a diameter slightly larger than the diameter of the shank 15, or alternatively has a plurality of longitudinal grooves, to provide a grease film between the liner and the shank. Grease grooves are also provided in the bottom surface of the flange 26. The socket may be tapered, as shown, or cylindrical, and the stud head 19, 20 may be part-spherical.
Patent GB-1287363-A (GB)
Title: Free-wheel mechanism
IPC: G04B11/04
Filed: 1970-01-15
Abstract: 1287363 Watches ETA AG EBAUCHESFABRIK 15 Jan 1970 [16 Jan 1969] 2112/70 Heading G3T  A free-wheel mechanism for use in a selfwinding watch comprises two coaxial wheels 2, 3 on an arbor 1 and having a cut out part 6 between their opposed faces. The part 6 comprises a hub 7 from which extend three radial arms 8, 9, 10 terminating in arcuate portions 11, 12, 13 respectively, which may engage eight circular cut outs 16 in the wheel 2 and six similar cut-outs 17 in the wheel 3. The arms 8, 9, 10 have a torque loading which, together with the shape of the portions 11, 12, 13, ensures that the wheels 2, 3 become locked together for one direction of rotation only. In an alternative embodiment, the cut-outs are replaced by toothed crowns on the opposed wheel surfaces.
Patent GB-162082-A (GB)
Title: Improvements in and relating to stamp mills for crushing ores
IPC: B02C1/14
Filed: 1920-01-24
Abstract: 162,082. Conder, C. M., and Vivian, G. T. Jan. 24, 1920. Vibrating-hammer apparatus.-In an ore stamping or crushing machine in which the stamp head swings in a circular path, the head 6 is curved to coincide with the path in which it moves, and is secured to one end of two bars 8 which are pivoted at the opposite end and operated by a cam 14 mounted on a shaft 15 beneath the bars. The bars 8 are preferably of channel section and the head is secured by bolts 9. The pivot ends of the bars 8 are fastened to a common eye-piece through which passes a shaft 11 mounted in bearings 12. A cross-bar 13 on the underside of the bars 8 against which the cam 14 bears is adjustable by means of wedges 17 operated by nuts 18 on threaded rods formed on the wedges. The mortar-box 1 is provided with an anvil block 2 and detachable screens 3, and water is supplied by a valved pipe 4. The head 6 is fitted with a renewable shoe 7 secured by a spigot portion.