baber/WOPTO huggingface dataset:
Patent GB-807131-A (GB)
Title: Improvements in or relating to feeding arrangements for the slides of machine tools
IPC: B23Q5/34
Filed: 1954-01-13
Abstract: 807,131. Screwcutting - - machine details. BAMKIN, J. B. April 12, 1955 [Jan. 13, 1954], No. 1014/54. Class 83 (3). A feeding-arrangement for relative movement between a work-holder and a tool-holder, one of the holders being a rotatable spindle, comprises a rotatable-drive-member rotating at a speed proportional to the spindle, and means for moving a slide.carrying one of the holders, the slide having a fast approach movement followed by a slow feed movement, the latter being controlled through the drive-member and the final drive to the slide being through rack-andpinion gears. A stationary work-holder 12, Fig. 1, carries a stud W to be threaded by a die carried in a rotating head 17. The latter is sup ported on a slide 14 which is moved along guides 13 on the machine-bed 10 at traverse and feedrates. A plate 19 secured to one end of the bed carries a double-acting pneumatic piston-andcylinder device 29 for the high-speed traverse, and gearing to correlate the spindle 16 and mechanism for the cutting feed drive. The gearing is driven by an electric motor, not shown, and sprocket-wheels 22, 24, Fig. 2, drive the die spindle through a splined connection 27. A further sprocket-wheel 25 carries a pinion 36 which gears with a toothed wheel 37 adjustable about an arc 40. The latter wheel drives a change-wheel 35 which is secured to a shaft 34, Fig. 1, which drives a worm within a casing 33 secured to the bed. The worm engages a worm-wheel on a transverse-shaft which may be coupled thereto by a pneumatically-controlled clutch-lever, the transverse shaft driving, through rack-and-pinion gearing, the slide 14 carrying the die-head. A stop 71 on the slide operates, after a quick-traverse movement by the piston-and-cylinder device 29, a valve to engage the clutch and thus the slow-feed cutting movement. At the end of the stroke a valve 81 is operated to reverse the slide and return it at the rapid-traverse rate after the clutch has been disengaged. The pressure on the piston 29 is retained during slow-feed to remove back-lash in the feed-drive. The work may be rotated in lieu of the tool, and either the work or tool given the longitudinal movement required. Mechanical, hydraulic or electrically-operated devices may replace the pneumatic arrangements described above.
Patent GB-473685-A (GB)
Title: Improvements in the charging of two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1936-01-11
Abstract: 473,685. Two-stroke-cycle engines. KADENACY, M., and ARMSTRONG WHITWORTH SECURITIES CO., Ltd. Jan. 11, 1936, No. 1015. [Class 7 (ii)] In engines in which the relative timing of the exhaust and inlet ports is such that the outflow of the exhaust gases is used to induce fresh charge, this effect is supplemented by a compressor 11 having radial, helical or fan blades and placed in the inlet pipe. It may rotate idly during normal running, or be driven through a clutch or governor - controlled through helical and variable-speed friction gearing to be increasingly effective as the speed of the engine decreases. Specifications 473,267, [Group XIX], and 473,684 are referred to.
Patent GB-1362353-A (GB)
Title: Dispensing equipment
IPC: A47F1/10
Filed: 1973-01-08
Abstract: 1362353 Dispensing apparatus TECHNICAL ARCO ESTABLISMENT 8 Jan 1973 [28 Jan 1972] 1036/73 Heading B8C A dispensing apparatus comprises a framework 14 divided into a number of compartments I-VIII each accommodating a number of articles as shown each compartment being closable by a door 1 which is pivoted about an axis 3 and which is held in its upper, closed, position by a spring-loaded pawl 4, and the latter being released by energizing a coil 8 to attract an associated spring-loaded armature 6 downwardly about a pivot 15. A safety device c comprises a wire 9 connected between a tension spring 13 and an electromagnet 12, one end of each armature 6 being engaged beneath the nose 2 of a lock 10 and each nose 2 being connected to the wire 9 which, when pulled to the left, Fig. 1, by energizing the electromagnet 12, releases the armatures 6 so that they can be selectively operated by energizing the appropriate coils 8. The coils can be energized manually or automatically. The framework may comprise only the system of doors the compartments I-VIII being replaced by the correspondingly-dimensioned compartments of containers placed symmetrically over the doors of the framework, Figs. 2, 4, not shown. The containers, made of a rugged metal, or plastics, frame (15), are equipped with article-retaining members (16) which can be withdrawn when the compartments are placed over the doors 1.
Patent GB-378764-A (GB)
Title: Process for the production of alcohols
IPC: C07C29/04
Filed: 1932-01-13
Abstract: Olefines are hydrated at elevated temperature and pressure in the presence of a heavy metal sulphate in aqueous solution or suspension. It is preferred to use temperatures above 200 DEG  C., and pressures above 100 atmospheres.  The process may be carried out continuously or otherwise, and unchanged olefine may be returned to the process after removal of the alcohol produced. The examples illustrate the use of aqueous zinc sulphate solution in the conversion of ethylene, propylene, and a mixture of a - and b -butylene to the corresponding alcohols.
Patent GB-1144731-A (GB)
Title: Improvements in spray apparatus for applying adhesive
IPC: B05B13/04
Filed: 1967-01-09
Abstract: 1,144,731. Spray-producers. SCHWEIZERISCHE INDUSTRIE-GESELLSCHAFT. 9 Jan., 1967 [10 Jan., 1966], No. 1109/67. Heading B2F. [Also in Division D1] Apparatus for applying stripes of adhesive to a paper web comprises a pair of pneumatically operated spray nozzles 4a which spray longitudinal stripes of adhesive 2 onto the web I as it moved in a direction transverse to the mounting bar 6 for the nozzles, and a plurality of pneumatically operated nozzles 4b which are pivoted during spraying while the web is stationary to spray transverse stripes 3. The nozzles 4a may be adjusted in position along the rail 6. The nozzles 4b are mounted on pivots 8 and are interconnected by a rod 10 whereby all the nozzles 4b are pivoted together on actuation of a compressed air cylinder 12. The adhesive supply tank (14), Fig. 2 (not shown) is pressurized. The supply of air to all the nozzles and the cylinder 12 is controlled by solenoid valves (21), (22) which are energised via cam means when a switch (26), Fig. 3 (not shown) is closed by the web as it is advanced beneath the nozzles.
Patent GB-1501101-A (GB)
Title: Vibratory machine
IPC: B24B31/073
Filed: 1974-01-10
Abstract: 1501101 Vibrators HYGRADE FINISHES Ltd 16 Jan 1975 [10 Jan 1974] 01211/74 Heading F2S [Also in Division B3] A vibratory machine has two eccentric weights mounted on one end of a rotatable drive-shaft, there being means located at the opposite end of the shaft to change the relative angular positions of these weights. In one embodiment, a finishing machine comprises an annular bowl 10 resiliently mounted by springs 11 on a base 12 with a circular plate 13 within the inner periphery of the bowl 10 mounting the casing 14 of an electric motor 15. The motor 15 includes a vertical hollow drive-shaft 16 coaxial with the bowl 10 and carrying one eccentric weight 17 at its upper end and two relatively adjustable eccentric weights 18, 19 at its lower end. The lowermost weight 19 is not directly connected to the shaft 16 but is clamped to a second shaft 21 passing upwardly through the hollow interior of the shaft 16. At its lower end, the shaft 21 has external splines 22 which may engage internal splines 20 in the lower end of the shaft 16. The upper end of the shaft 21 carries a lock-nut which bears on top of the shaft 16 to clamp the weight 19 or a collar on the inner shaft 21 against the lower end of the drive-shaft 16. In use, the articles to be finished and finishing chips are placed in the bowl 10 and by suitably positioning the eccentric weights relative to one another the articles are caused to move in a helical path around the bowl 10 when the motor 15 is switched on. To adjust the relative positions of the two bottom weights 18, 19 from above, the lock-nut at the top of shaft 21 is released, the shaft 21 lowered to disengage the splines 20, 22, and the shaft 21 turned.
Patent GB-764038-A (GB)
Title: Process of dressing minerals, more particularly coal, in heavy liquid
Inventor: HAACKE ALBRECHT
IPC: B03B5/10
Filed: 1955-01-14
Abstract: Minerals, especially coal, are separated into at least three fractions by jigging and effecting a sink-and-float separation, where the jig uses the heavy liquid of the sink-and-float step to remove the heavy fraction or fractions, the two lightest fractions passing from the overflow into the sink-and-float step to be separated.  In a modification the sink-and-float step can precede the jigging when the lightest fraction is thus first removed.
Patent GB-728979-A (GB)
Title: Appliance for radiographic representation of sections of the body
IPC: A61B6/02
Filed: 1953-01-15
Abstract: 728,979. X-ray apparatus. DUMER, J. Jan. 15, 1953 [Jan. 15, 1952; Nov. 26, 1952], No. 1256/53. Class 98 (1). Tomographic apparatus including synchronously driven supports for the object and the film is characterized in that an electric rotating field system transmits rotational movement from the object support to the film support. As shown, the object support includes a pillar 4 mounted on a disc 3 rotatable on rollers near its periphery on a base 1. A slide 6, movable in a guideway 5 formed in the top of pillar 4 by means of a hand wheel 8, carries a saddle 9 and a back-rest 10 for the patient. A pinion 12 fast with pillar 4 is driven by an electric motor 14 to rotate the patient support, and also drives a generator 16 which is connected by a five-core cable to a motor 18 to form therewith an electric rotating field transmission system. Motor 18 is mounted on a slide 22 together with a film cassette holder 21, which it rotates by engagement with a pinion 20. The slide 22 is moved along horizontal rods (not shown) by a threaded shaft turned by knob 26. The rods are mounted on lugs 24 on a plate 27 carried by rods 28 slidable in horizontal sleeves 29 in a bracket slidable on a vertical pillar 31, detachably mounted on the base 1. For the correct functioning of the apparatus, the X-ray tube is so positioned that its central ray 38 intersects the axis of rotation 49 of the patient support. The cassette 21 is then adjusted vertically and horizontally until the ray 38 intersects the surface of the film at its centre of rotation.
Patent GB-963007-A (GB)
Title: Improvements relating to a.c.switching arrangements
Inventor: DIGBY BASIL
IPC: H01H33/59
Filed: 1960-01-13
Abstract: 963,007. Switching systems; arc preventing in switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 12, 1961 [Jan. 13, 1960], No. 1298/60. Headings H2B and H2H. A circuit for controlling the breaking of a switch b1 at a determined point in an A.C. cycle comprises a phase-advancing circuit R1, C1 or R2, C2, the output from which is modified by a pulse shaping circuit R111M and passed through a switch 52 and a differentiating circuit R3, C3, or R4, C3 to a bi-stable circuit comprising transistors TR1, TR2 which control a relay A. To close switch b1 the switch S is moved to the opposite position shown, causing transistor TR1 to conduct and relay a to be energized which in turn closes switch b1. To close the switch b1 the switch S2 is thrown to the position shown and a pulse derived from a current transformer is applied to a transistor TR2 which cuts-off relay A and allows switch b1 to open. Resistor networks R7, C7 and R8, C8 switchable by an extension of the switch S2 are included in the circuit to ensure that should the A.C. supply fail the bi-stable circuit is in its appropriate state when the A.C. supply is restored.
Patent GB-876620-A (GB)
Title: Improvements relating to machines for inducing movement of fluids
IPC: F04D17/04
Filed: 1957-07-02
Abstract: 876,620. Transverse-flow fans and pumps. FIRTH CLEVELAND Ltd. July 2,1957 [Dec. 7, 1956 (3)], No. 1329/61. Divided out of 876,611. Drawings to Specification. Class 110 (1). The subject-matter of this Specification is identical with that of Figs. 4, 5, 13, 13a, 14 15 and 16 of Specification 876,611, but the claims are concerned with a transverse-flow fan or pump comprising means to guide the whole throughput at least twice through the rotor blades, the rotor blades being concave facing in the direction of rotation and having their outer edges leading their inner edges, the guide means including a guide body which extends the length of the rotor and co-operates with the rotor blades to stabilize an approximately cylindrical free vortex having a core which is eccentric to the rotor axis, and the guide body or a part thereof being movable with respect to the rotor to vary the position or character of the vortex core for the purpose of varying the flow of fluid through the rotor.
Patent GB-141440-A (GB)
Title: Improvements relating to the manufacture of colourless organic compounds
IPC: C07C37/86
Filed: 1919-01-18
Abstract: Coloration is removed from, or its development prevented in, aromatic amines or phenols or their sulphoric or carboxylic acids by treatment with a small proportion of an hydrosulphite or sulphoxylate, any excess of hydrosulphite or sulphoxylate being finally removed.  Thus, a discoloured finished product is dissolved or suspended in a solvent, decolorized by adding a small proportion of hydrosulphite or sulphoxylate, and then isolated from the solution or suspension in the usual way; or discoloration may be removed or prevented in a product by adding a small proportion of hydrosulphite or sulphoxylate to the parent materials used in the manufacture thereof.  Examples are given of the treatment with sodium hydrosulphite of b -naphthol, benzidine, the solutions of sodium sulphanilate or naphthionate obtained in the manufacture of these acids, or the acidified alkali melts obtained in the manufacture of phenols such as b -naphthol, H - acid, or g  - acid; an example is also given of the addition of sodium hydrosulphite to mixtures of caustic soda solution and sulphonic acids, e.g. aminosulphonic acids, before heating in an autoclave to produce the corresponding phenols.
Patent GB-1412931-A (GB)
Title: Rotary piston internal combustion engine with a stratified charge intake port system
IPC: F02B53/04
Filed: 1974-01-11
Abstract: 1412931 Rotary IC engines NISSAN MOTOR CO Ltd 11 Jan 1974 [17 Jan 1973 22 Jan 1973] 01339/74 Heading F1F Stratification of inducted charge in a rotary internal combustion engine of the trochoidal type is obtained by having main and auxiliary intake ports 24, 22 fed respectively with lean and rich fuel/air mixtures and open to each working chamber during different periods of the respective intake stroke. As shown, port 22 is located radially outwardly of port 24 and firstly alone communicates with the working chamber, Fig. 1b. There is then a period when both communicate with the chamber, Fig. 1d, and finally only the main, lean mixture, port 24 communicates therewith, Fig. 1e. In alternative embodiments, Figs. 2 to Fig.5 (not shown), the ports can be arranged to open simultaneously, the main port 24 can be located outwardly of the auxiliary port, and one or other of the ports can be located in the housing periphery. Various configuration of combustion chambers recessed in each piston side are also shown.
Patent GB-186299-A (GB)
IPC: F28B1/02
Filed: 1922-01-16
Abstract: 186,299. Metzger, C., and L³tschen, E. Sept. 19, 1921, [Convention date]. Addition to 163,970. Surface condensers.-In a condenser of the kind described in the parent Specification the cooling water circulates through a double-walled funnel 2 having a flat base 4. The cooling-water may pass from an inlet a to an outlet b, or it may first pass into the space between the outer casing 1 and the funnel, and thence into the funnel through perforations in its outer wall. The steam passes downwards through the funnel. Condensatepasses away through the outlet 3, and the remaining steam is condensed by contact with the lower surface of the base 4. Air and uncondensed vapour pass away through outlet c.
Patent GB-711390-A (GB)
Title: Improvements in or relating to photographic light-sensitive diazotype materials
IPC: G03C1/54
Filed: 1952-01-17
Abstract: 711,390. Photographic diazotype material and process. CHEMISCHE FABRIEK L. VAN DER GRINTEN, N. V. Jan. 17, 1952 [March 20, 1951], No. 1372/52. Class 98(2) A layer of a solution or emulsion of cellulose acetate of acetyl content 25 to 40 per cent calculated as acetic acid is coated on to a flexible support, particularly a support of hydrophobic material or a support having a hydrophobic surface produced as by lacquering paper, baryta paper or natural tracing paper to form a coating of cellulose nitrate, cellulose acetate of higher acetyl content, colopheny or polyvinyl alcohol, dried, and a solution of a light-sensitive diazo compound which may contain a coupler is coated on top and dried. Exposure and development are by normal methods, the material being particularly useful for semi-wet development. In Examples (1) tracing paper is dipped into a solution of colophony in methanol and dried, a 38 per cent acetyl cellulose acetate solution in a water-dioxane mixture at 30C. is cast thereon and dried in air at 50C., the cellulose acetate layer is impregnated with a solution of p - diazo - phenyl - N - morpholine-stannic chloride double salt, citric acid and resorcinol in aqueous ethanol and dried; the material is exposed under a line tracing to a mercury vapour lamp and developed in ammonia fumes to give a red-brown picture. (II) baryta coated paper is rendered hydrophobic by means of a solution of polyvinyl acetate in methanol, coated with a 34 per cent acetyl cellulose acetate in aqueous ethanol sensitized with a solution of the zinc chloride double salt of 1-diazo- 2-ethoxy-4-diethylamino-benzene, 1-phenyl-2:3-dimethyl-5-pyrazolone, phloroglucinol, resorcinol and citric acid in aqueous ethanol, exposed and developed in ammonia fumes to give a bluish-black image. (III) a cellulose nitrate lacquered tracing paper is coated with 28 per cent acetyl cellulose acetate sensitized with the zinc chloride double salt of p-diazo-o-chlorodiethyl-aniline, exposed and surface developed with couplers in the developer. (IV) cellulose acetate lacquered paper is sensitized with the zinc chloride double salt of p-diazoethylbenzyl aniline, exposed and surface-developed as in Example III. (V) celluloid is coated with 30 per cent acetyl cellulose acetate using aqueous propanol as solvent, sensitized as in Example IV, exposed under a diapositive having soft graduations and surface developed by application of a solution in water of thiourea, borax, phloroglucinol, resorcinol, sodium carbonate and the sodium salt of isopropylnaphthalene sulphonic acid to give a black diapositive. (VI) cellulose acetate lacquered paper is provided with a 30 per cent acetyl cellulose acetate coating, sensitized with the zinc chloride double salt of p-diazo-2: 5-diethoxybenzoyl aniline, exposed and surface developed with couplers in the developer. Numerous other diazo sensitising compounds are quoted. Specifications 496,049 and 563,804 are referred to.
Patent GB-368460-A (GB)
Title: Improvements in or connected with jigging mechanism for jigging conveyers and the like
IPC: B65G27/00
Filed: 1931-01-15
Abstract: 368,460. Jigging conveyers. MAVOR & COULSON, Ltd. and MAVOR, J. B., 47, Broad Street, Mile End, Glasgow. Jan. 15, 1931, No. 1382. [Class 78 (i).] In driving gear of the kind comprising a crank element A arranged for rotation about a vertical axis, a connecting-rod B, and a rocking- arm C arranged for rocking about a vertical axis 16, the transmission rod D, which connects the arm C to the trough E, is connected to the arm at a point H, which in the extreme positions of the arm is situated in the vertical plane passing through the centre line of the trough, and during the movement of the arm departs only slightly from that plane. The periphery of the crank element A is toothed and is engaged by a motor-driven pinion 2. The bed structure 4 is formed as a casing in which the gears work in oil. The arm C is arranged to be mounted at either side of the bed, and is provided with a roller 6 which works in a guide 7.
Patent GB-164711-A (GB)
IPC: C02F1/20
Filed: 1921-01-10
Abstract: 164,711. Kestner, P. June 10, 1920, [Convention date]. Purifying liquids.-In the removal of dissolved oxygen from water by filtration through iron filings or turnings, the layer of rust on the latter which retards complete oxidation of the filtering medium, is reduced by allowing the iron and the rust to react upon each other while the filtering action is suspended to give ferroso-ferric hydrate or a combination of ferrous and ferric hydrates. When no longer capable of rapidly absorbing oxygen a portion of the filter bed is kept full of water until the medium becomes active again. The lower hydrates may be removed from the filter by means of a current of water or steam or by stirring by mechanical means. Specification 38/73 is referred to.
Patent GB-306253-A (GB)
Title: Improvements in inter-valve couplings for thermionic valves
IPC: H03G5/06
Filed: 1928-01-16
Abstract: 306,253. Pollock, A. F., and Pollock, D. A. Jan. 16. 1928. Amplifying systems. - In an audio-frequency inter-valve coupling, the intensity of the conveyed impulses of the middle frequences is reduced relatively to the impulses of the lower frequencies by an inductive impedance, the impulses of the higher frequencies being directly bye-passed by a capacity in shunt with the impedance. The amplifier may be used to compensate the relatively greater intensity of the middle frequencies in wireless transmission or mechanical phonographic recording, or to pre-compensate their subsequent exaggeration by a loud speaker. As applied to a resistance-capacity coupling, Fig. 1, in which the usual anode resistance and grid leak are shown at d and e respectively, a choke f acting as an impedance for the higher and middle frequencies is arranged in series with the coupling condenser c and the higher frequencies are bye-passed by a condenser g which may be variable and have a maximum value, of 0.0003 microfarads. The resistance d may be replaced by a choke. As applied to a transformer coupling, the choke f shunted by condenser g is arranged between the secondary of the transformer and the grid of the following valve. In the battery-coupled arrangement shown in Fig. 4, the choke f is placed in series with the battery k and the condenser g shunts both battery and choke. The invention may also be applied to (1) a direct coupled arrangement as shown in Fig. 5 in which the anode resistance n of valve a serves as a grid leak for valve band (2) a grid output arrangement as shown in Fig. 6, the plate and filament potentials being relatively adjusted as described in Specification 309,846, [Class 40 (v), Wireless signalling &c.]. The Provisional Specification describes a resistance shunted by a condenser for reducing the intensity of both middle and lower frequencies.