baber/WOPTO huggingface dataset:
Patent GB-1283311-A (GB)
Title: Continuous press
Inventor: KNAPP HANS JOHN
IPC: B27D3/04
Filed: 1969-07-07
Abstract: 1283311 Double belt presses H J KNAPP 7 July 1969 [29 July 1968] 34172/69 Headings B5A and B5N A continuous press for use in the manufacture of particle board, hardboard, fibreboard, plywood or the like, comprises a pair of caul belts, the opposing runs of which pass between the platens of a stationary press and the runs of a heated "caterpillar" press, the runs of the "caterpillar" press, in addition to their pressing action, serving to frictionally engage and draw the belts through the stationary press. In the described embodiment, material W is pressed between steel belts 20, 21 which pass between the heated platens 25, 26 of a stationary press and through a "caterpillar" press 23, the runs of which comprise interconnected heated or cooled platens 24 slung between idler sprockets 46 and driven sprockets 45 and running over rails located between the sprockets. The belts 20, 21 are supported over rollers 58, 59, 53 and 54, the leading pair 53, 54 of which are adjustably mounted to effect, if desired, a precompression of the material and are driven whilst used in this capacity by a drive 67. Precompression may also be effected by shoes adjustably mounted upon the leading edges of the platens of the stationary press. The belt engaging face of each platen of the stationary press is provided with slabs of low friction material, the action of which is enforced by allowing a fluid to seep between the slabs on to the belts. The fluid is chosen not to reduce the friction between the "caterpillar" press and the belts, and in this way the belt driving action of the press is enhanced. Both the upper platen 25 and the upper run of the "caterpillar" press are adjustably mounted relative to their lower counterpart so as to alter the degree of compression.
Patent GB-630836-A (GB)
Title: A method of manufacturing contact supporting springs
IPC: H01H11/04
Filed: 1947-12-24
Abstract: 630,836. Making contact springs. AKTIEBOLAGET METACO. Dec. 24, 1947, No. 34196. Convention date, June 26, 1946. [Class 83 (ii)] In a method of making contact springs, a band 1 from which the springs are to be cut is fed through a machine, where in a number of successive operations at different stations, holes 5, 6, 7 and 8 are first punched in a transverse strip, contact wires 10, 11 are inserted in the holes, riveted in position at 12 and shaped to the required final form, by a milling or other machining operation, followed by a pressing operation, any additional holes or slots required are punched at 19 and finally the otherwise completed spring is punched out of the strip. The punching-out operation indicated at 20 may be combined with the preceding punching operation 19 for the slots and additional holes. The Specification as open to inspection under Sect. 91 comprises also a modification in which the contact wires are secured to the strip by welding. This subject-matter does not appear in the Specification as accepted.
Patent GB-918947-A (GB)
Title: Photographic diffusion transfer process
Inventor: LEVENSON GERALD ISAAC PASTERNA
IPC: G03C8/52
Filed: 1958-10-25
Abstract: 918,947. Photographic diffusion transfer processes. KODAK Ltd. Jan. 22, 1960 [Oct. 25, 1958], No. 34234/58. Class 98 (2). Zinc oxide is incorporated into the paper support, or a layer thereof is provided, adjacent to the image-receiving layer used in the silver halide transfer reversal process to neutralize alkaline developer remaining therein after the transfer procedure. An example describes exposure to a document of a chloride emulsion containing hydroquinone and an antifoggant on a paper support, treatment with an alkaline solution containing hydroquinone, 1-phenyl-3- pyrazolidone and sodium sulphite, and before development is completed squeegee contact with the paper receiving sheet carrying first a gelatine layer containing the zinc oxide and then one containing hypo, colloidal silver sulphide and a blue-black addition agent as of Specification 861,255.
Patent GB-655973-A (GB)
Title: A new or improved die stock for use in threading tubes, bars and like work
Inventor: TREVENA ARTHUR
IPC: B23G1/22
Filed: 1947-12-27
Abstract: 655,973. Die-stocks. BROCKHOUSE & CO., Ltd., J. Dec. 27, 1947, No. 34323. [Class 83 (iii)] A die-stock comprises a hollow body 10 adapted to be rotated about the axis of the workpiece, a plurality of dies 12 mounted on the body 10 and adjustable towards the workpiece by means of a cam element 17 which engages the dies and is mounted rotatably on the body 10, and a lever 40 mounted pivotally on a pivot member 27, 28 so that, by turning the lever about this member, relative movement occurs between the body 10 and element 17 and the dies 12 are displaced from an inoperative position to an operative position ; in addition, means independent of the lever 40 are provided for displacing the member 27, 28 bodily in relation to the element on which it is mounted between two positions corresponding to different thread-cutting depths and thereby causing the lever 40 to coact with the member 27, 28 and effect relative movement between the body 10 and element 17, the member 27, 28 being adapted to be looked in either of the two operative positions. Four dies 12 are housed in recesses 11 in the body 10 and are adjusted by co-operation between slots 20 therein and spiral cams 19 on the element 17. Graduations are provided on the element 17 and on a collar 18 in threaded engagement with the body 10 to facilitate adjustment of the dies. A lug 21 on the element 17 has an arcuate slot 22 therein to receive a sleeve 23 which is adapted to be locked in adjusted position by a lever 26. The pivot member 27, 28 is housed within the sleeve 23 and has a top 31 with two depending fingers 32 to engage slots in the sleeve 23. A spring 29, bearing on a flange 30 on the spindle 27, presses the fingers 32 into the slots and the eccentric pin part 28 of the pivot member 27, 28 into a bearing in the end of the lever 40. The latter lever is pivoted on a trunnion 36 which has two recesses therein to receive a spring-pressed ball 43 when the lever is in positions corresponding to the operative and inoperative positions of the dies 12. The trunnion 36 is mounted on a plunger 37 adapted to slide in a recess 38, 39 in the body 10. In operation, after initial adjustment of the dies 12, the sleeve 23 is locked to the cam element 17 and the lever 40 pivoted about the trunnion 36 until the ball 43 engages the slot 43a with the pin 28 and trunnion 36 on the same circumferential line with respect to the body 10. In this setting, the die-stock may be used to cut threads to half of their full depth. The dies 12 are re-set to cut threads to full depth by raising the fingers 32 from their recesses and rotating the pivot member 27, 28 through half a turn before re-engaging the fingers. The latter movement separates the trunnion 36 from the spindle 27 of the pivot member 27, 28 by an additional amount equal to twice the throw on the eccentric pin 28. Guides 48 are provided for the workpiece and are adapted to be actuated radially by a scroll cam 49 operated by handles 51.
Patent GB-411510-A (GB)
Title: Improvements in or relating to wire spring mattresses and the like
IPC: A47C23/053
Filed: 1932-12-05
Abstract: 411,510. Spring mattresses. GALE & SONS, Ltd., G., and WARD, W. H., Dominion Works, Upper Dean Street, Birmingham. Dec. 5, 1932, No. 34334. [Class 52 (iv).] Bearer bars a are slidably mounted on angle iron side rails g by slotting and splaying the hollow strip metal sectioned bearer bars so as to produce co-operating flanges a<3> and shoulders a<4> defining the recess a<5> which receives the flange of the side rail.
Patent GB-1180630-A (GB)
Title: Improvements in or relating to Fuel Injection Devices for Compression Ignited Internal Combustion Engines
IPC: F02M45/12
Filed: 1967-07-26
Abstract: 1,180,630. Fuel injection pumps. AUTOMOBILES PEUGEOT. July 26, 1967 [Aug.1, 1966; May 18, 1967], No.34334/67. Heading F1A. A fuel injection pump chamber communicates through restrictor means with a device which deducts a portion of the fuel delivered during the injection stroke. Means are provided to neutralize the device in accordance with an engine condition. As shown in Fig.1 the device comprises a spring loaded piston 14 in a chamber 15 connected to the pump chamber 8 through an orifice 16. Rise of the piston 14 is prevented at a given speed by feed pump pressure, which varies in accordance with engine speed, which pressure is applied to a piston 24 through connection 27. In a modification Fig.3 (not shown), after a given movement of the piston (14a) a port opens to by-pass the restriction 15 so that the piston (14a) rises suddenly, which results in a double injection. In a second embodiment the restriction is replaced by a valve extension on the piston (14b, Fig. 5 not shown). In a third embodiment Fig.7 (not shown), the neutralizing piston 24 is replaced by a piston (83) having a profiled cam surface movable at right angles to the axis of the piston 14 and acting thereon through a push rod.
Patent GB-333119-A (GB)
Title: An improved resilient wheel
IPC: B60B9/20
Filed: 1929-11-11
Abstract: 333,119. Messier, G. L. R. J. Nov. 10, 1928, [Convention date]. Spring wheels.-A landing-wheel for aircraft, or a road-vehicle wheel, is rotatably mounted on trunnions J, K projecting from a cylinder E which is fitted with rings C, D adapted to slide along a cylinder A rigid with the fuselage B, or the vehicle axle. The rings C, D and the wall of the cylinder A may be formed with intermeshing teeth to prevent relative rotation. In the construction shown, the cylinder E carries a piston F fitting within the cylinder A, the cushioning arrangements being of the kind described in Specification 321,035, [Class 108 (iii), Springs &c.]. Other resilient means, such as elastic cords or springs may be used. A brake-drum T is fitted to one of the wheel discs.
Patent GB-644623-A (GB)
Title: Improvements in or relating to automatic frequency-correction circuit-arrangements
IPC: H03L7/087
Filed: 1947-12-29
Abstract: 644,623. Automatic frequency-control systems. PHILIPS ELECTRICAL, Ltd. Dec. 29, 1947, No. 34400. Convention date, Dec. 31, 1946. [Class 38 (iv)] A determined frequency difference is main. tained between a controlling oscillation f and a controlled oscillation f<SP>1</SP> by a retro-active control system which is rendered inoperative when the frequency difference f<SP>0</SP>-f<SP>1</SP> is in the undesired sense or direction. In Fig. 1, the controlled oscillation 1 of frequency,f<SP>1</SP> is applied to a mixer 3 which is also fed from the control source 2 at frequency f<SP>0</SP>. The beat of frequency f<SP>0</SP>-f<SP>1</SP> is applied to a phase discriminator 5, also fed with the determined difference frequency f<SP>2</SP>, and the output is supplied to a reactance tube or other reactance 6 controlling the frequency of the source 1 to make f<SP>0</SP>-f<SP>1</SP>=f<SP>2</SP>. This arrange. ment would, however, lock in the oscillator 1 at either of two frequencies, with f<SP>1</SP> greater or less than f<SP>0</SP> by the amount f<SP>2</SP>. In order to block the phase discriminator 5 against one of these, a further mixer 7 is provided which is fed with f<SP>0</SP> and f<SP>1</SP>, a phase shift of 90 degrees being given at 8 to the frequency f<SP>0</SP>. The beat outputs from 3 and 7, which are in phase quadrature, are mixed at 9, giving a D.C. output e, the sense of which depends on which beat has the leading phase, and this depends on whether f<SP>0</SP> is greater or less than f<SP>1</SP>. f<SP>1</SP>. By arranging that a negative output from 9 is obtained for the undesired sense of f<SP>0</SP>-f<SP>1</SP>, that output may be used to block the phase discriminator 5. The sense of the frequency difference f<SP>0</SP>-f<SP>1</SP> may alternatively be ascertained by the use of counting discriminators, of the type described in " Communication News Volume IX, No. 1, pages 26, 27. The mixers 3, 7 may comprise valves with two input grids, Fig. 2, the quadrature beats appearing across anode resistors 10, 11. The anode voltage of the valve 3 is fed through a condenser 19 to an input grid of the phase comparer 5, and both anodes are coupled through condensers 12, 13 to oppositely-poled rectifiers 15, 16 arranged to charge a condenser 14 either positively or negatively according to which beat has the leading phase. When negative, the voltage e on the condenser 14 blocks the phase comparer 5.
Patent GB-485680-A (GB)
Title: Improvements in and relating to compositions containing disintegrated paper stock and bituminous substances
IPC: A42B1/06
Filed: 1936-12-15
Abstract: A water-in-asphalt emulsion, stabilized, e.g. by a lime-rosin soap, is used as a binder for disintegrated paper.  The weight of the water is less than that of the paper.  The paper is fed into a Banbury mixer with water, lime and rosin and mixed together, hard oxidized asphalt, in solid or fluid condition and in amount equal by weight to that of the paper is added, mixing is continued under pressure until the paper has been disintegrated and distributed uniformly throughout the emulsion, the mass is discharged and shaped, e.g. into paving blocks, and the water is driven off. When the mass is to be extruded to form roofing elements additional asphalt is added during the mixing.  Reference is made to Specification 485,679.
Patent GB-943190-A (GB)
Title: Fused porcelain-to-metal teeth
IPC: A61C13/083
Filed: 1962-09-08
Abstract: An artificial tooth comprises a metal base having a coefficient of expansion between 80 and 170 X 10-7 per degree Centrigrade and, attached to it, a porcelain covering having a coefficient of expansion slightly less than that of the metal base.  This avoids the porcelain being placed under tension when the tooth is cooled to normal temperatures.  In one method of making such a tooth, the porcelain shell is first formed and the metal is cast into it and it is possible to do this in such a way that oxidization of the metal does not occur and a secure bond is obtained without any discolouration.  In order to obtain the desired coefficient of expansion of the porcelain, two components are prepared, one comprising high orthoclase felspar and the other comprising ordinary clear felspar and silica, the relative proportions of which bear a direct relation to the coefficient of expansion of the resulting porcelain.
Patent GB-1336386-A (GB)
Title: Constructional element of honeycomb structure
IPC: E04B1/19
Filed: 1971-07-22
Abstract: 1336386 Honeycomb structures NATIONAL AERONAUTICS & SPACE ADMINISTRATION 22 July 1971 [22 July 1970] 34482/71 Heading E1B A honeycomb structure (Fig. 3) comprises a plurality of tubule sections 26 interconnected without internal discontinuities, each tubule section being defined within an imaginary plane surfaced polygon (as shown a cube) 28 and intersecting the faces thereof in a simple closed curve, and comprising a plurality of smoothly interconnected minimal surface elements 13 each defined in an imaginary kaleidoscopic cell 11 (as shown a cube). Many other examples of minimal surface elements and corresponding tubule sections based on other kaleidoscopic cells and polygons are disclosed, a minimal surface element being defined as one whose curvature towards and away from a reference plane integrated over the surface as a whole is zero. The elements may be manufactured in concrete, metal, plastics or pressed paper and are used massively as fuel tanks heat exchangers spacecraft frames, and buildings or they may be bonded by two plane sheets to form a sandwich panel.
Patent GB-862841-A (GB)
Title: Improvements in shock-absorbers used in the suspension of vehicles
IPC: F16F9/19
Filed: 1957-11-05
Abstract: 862,841. Hydraulic shock absorbers. REGIE NATIONALE DES USINES RENAULT. Nov. 5, 1957 [Nov. 14, 1956], No. 34498/57. Class 108(3). [Also in Group XXVI] In a hydraulic shock-absorber of the piston and cylinder type a piston 19, Fig. 1, slides in cylinder 1 and carries packings 15, 16 which ensure that the piston is fluid-tight in the cylinder. Reservoir 13 communicates with the working chamber via pipe 12, the hollow piston-rod and orifice 34. Packing pieces 15, 16, Fig. 3 have orifices 21 which offer resistance to the flow of oil through the piston and provide damping. Under light oil pressure, caused by small or slow deflections of the shockabsorber, orifices 21 are held at their normal size by annular portions 35. Under greater oil pressure, caused by greater or quicker deflections, orifices 21 momentarily expand and offer less resistance to oil flow. The damping action is thus automatically self-adjusting. Virtually no resistance is offered to oil passing from the end of the packing pieces containing orifices 21 to that having lips 17, 18, since these lips are readily displaced by oil moving in this direction, thus acting as one-way valves and allowing oil to flow along grooves 33. The oil-tight seal between piston-rod 7 and guide member 4 is maintained by packing piece 5. In a second embodiment, Fig. 2, the upper portion of the shock-absorber serves as the oil reservoir. Valve 45 de-limits the oil reservoir and offers low resistance to oil flow from the reservoir since it flexes about narrow portion 62, Fig. 6, and a high resistance to oil flow to the reservoir through holes 51 which expand under high pressure. As an alternative to valve 45 a valve as shown in Fig. 10 may be employed. Filter 54 prevents foaming of the oil by breaking up air bubbles.
Patent GB-191372-A (GB)
Title: Improvements in amusement apparatus
IPC: A63H33/22
Filed: 1922-12-19
Abstract: 191,372. Franck, M., Bonicho, E., and Hesse, F. Jan. 4, 1922, [Convention date]. Mechanical toys. - An amusement apparatus comprises a box a in which are arranged celluloid or other flexible, bands e of different widths, wound on rollers b, and having thereon representations of parts of a composite picture which when built up by manipulating the bands, is exhibited through an aperture c. Some of the bands may be arranged crosswise to the remainder.
Patent GB-784190-A (GB)
Title: Process for the production of artificial leather of deerskin-like character
IPC: D06N3/00
Filed: 1955-12-02
Abstract: 784,190. Artificial leather. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORM. ROESSLER. Dec. 2, 1955 [Dec. 18, 1954], No. 34591/55. Class 140. Artificial leather having a fine pore surface is produced by coating a substrate, e.g. woven or knitted fabric, paper or fibre, with a thin layer of coloured polyvinyl chloride paste containing a plasticiser, e.g. dioctyl or dibutyl phthalate, spraying on to said layer a powder which gasefies at a temperature between 100‹ and 200‹ C., e.g. ammonium carbonate or bicarbonate, and heating the coated material to completely gel the polyvinyl chloride paste and gasefy the powder. The artificial leather may be lightly buffed.
Patent GB-807019-A (GB)
Title: Electrical components and method of making same
IPC: H01B7/16
Filed: 1955-12-05
Abstract: 807,019. Moulding electrical components. TECHNICAL CERAMICS Ltd. Dec. 5, 1955 [Dec. 3. 1954], No. 34839/55. Class 87(2). [Also in Groups XXII, XXXVI and XL(b)] In a method of making electric resistors, capacitors or piezo-electric devices ceramic, oxide, &c. is placed between metallic elements and subjected to heat and pressure in a continuous process such as drawing, rolling or extrusion. In examples, components comprising a, central conductor 57, Fig. 2, and concentric tubes 61 with intermediate layers of ceramics 62 may be formed by drawing or extruding through progressively smaller dies, the work or the dies being heated and the pressure being sufficient to form and sinter the ceramic. The drawn tube may be cut up into short lengths 56 as required. Other components comprising metal plates 85, 86, Fig. 6, separated by ceramics 83, 84 may be subjected to the necessary pressure by rolling down in progressive stages. A compound component comprising an outer metal sheath 117, Fig. 12, enclosing a multiplicity of cores 119 in concentric tubes 122 may be drawn or extruded with different types of ceramic 113, 115 in the various zones so that the component contains a combination of resistors, capacitors and piezo-electric devices. The use of oxides, titanates, silicates, steatites and carbon or graphite mixtures is referred to.
Patent GB-760131-A (GB)
Title: Improvements in or relating to film drying apparatus
IPC: F26B17/28
Filed: 1953-12-15
Abstract: Film drying apparatus in which solidscontaining liquid is sprayed on to a heated surface such as a rotary drum 12, Fig. 1, and the liquid evaporated, includes a spray unit comprising a rotary disc 27 with a tubular stem 28 dipping into the liquid within a casing 16.  Rotation of the disc by a motor 21 causes liquid to be drawn up the stem on to the disc from which it is thrown through a casing extension 20 on to <PICT:0760131/III/1> <PICT:0760131/III/2> the drum.  A knife 9 strips off the solids left on the drum after the liquid has been evaporated. The casing, disc and motor are adjustably supported by a pillar 18. The width of the spray outlet 7 from the casing is adjustable by shutters 1, 2 which slide in guides fixed to the casing wall, and radial baffles 29 in the base of the casing prevent liquid surging therein.  A pump 35 driven by a motor 36 draws liquid from a container 32 and feeds it to a vessel 39 from which it is fed to the casing, and a pipe 30 with an inlet 31 maintains a constant level within the casing.  A pipe 42 provides a local liquid circulation preventing solids settling out when spraying ceases.  An apparatus of greater capacity comprises a number of spray discs spaced along a heated drum, and one such apparatus includes longitudinally extending troughs 52, 53 located parallel to a drum 54, and with a slot 56 in the trough 53 adjacent the drum.  The troughs are divided longitudinally by transverse partitions extending across their upper parts, and in each section thus formed a spray disc 27 is provided. Each disc is driven by a separate motor adjustably supported on a pillar 70, and each section has two spaced pivoted flaps mounted on a longitudinal wall 58 between the troughs to provide an adjustment of the amount of spray reaching the drum. The tops of the troughs are covered by flaps.