baber/WOPTO huggingface dataset:
Patent GB-548957-A (GB)
Title: Improvements relating to backlash eliminators for machine tools
IPC: B23Q5/56
Filed: 1941-07-03
Abstract: 548,957. Screw-and-nut gearing. ARCHDALE & CO., Ltd., J., and WRIGHT, I. H. July 3, 1941, No. 8407. [Class 80 (iii)] Consists in means for eliminating backlash ir screw-and-nut gearing fox moving the slides of machine tools. A cutter b acts upon work d on a slide a to which is secured a screw c prevented from rotating by clutch elements e, f. A pair of rotatable nuts g, h on the screw are supported by fixed stationary bearings i. The nut g has a pair of ball thrust bearings j, whilst the nut h has a pair of thrust friction bearings k such that endwise force on the screw in either direction cannot cause rotation of the nut. Formed on or secured to the nuts are a pair of helical toothed pinions m. n which engage corresponding pinions o, p on a driving shaft q adapted to be rotated by gear wheels r. The teeth of the pinions m, o are of moderate helical angle, but the teeth of the pinions n, p are of relatively large angle, but both sets of pinions are of the same hand. The thrust bearings j, k are situated between opposite sides of their respective pinions and the corresponding bearings. The shaft q is free to move axially to an extent determined by stops s, such endwise movement being derived from the interactions of the helical pinions or from fluid-pressure actuated plungers t or springs. These are only brought into action preparatory to a cutting operation and are not in operation during idle movements of the slide. The pinion o is secured to the shaft q, but the pinion p is mounted thereon with a lost motion connection v. Initial rotation of shaft q causes it to move to the left, due to the action of pinions o, m which will be rotated, this endwise movement 'being arrested by the stop s before the lost motion v is wholly taken up. Rotation of shaft q to take it up wholly causes sufficient relative motion of nuts g, h to bring them closely but not tightly against the ball and friction thrust bearings j, k. If now a plunger t is caused to exert pressure on the left-hand end of shaft q, the latter tends to move to the right against the force of interaction of the pinions m, o and n, p, but so long as a thrust of high value is exerted on the slide a no such endwise movement occurs. If and when this thrust falls sufficiently, the shaft moves endwise causing the nuts to be screwed closer together thus creating on the bearings j. k a pressure that will prevent sudden forward movement of the slide. If the thrust on the slide again becomes large, the effect of plunger t is overcome and the pressure on the bearings reduced. If cutting takes place with movement of the slide in the opposite direction, the nuts are forced against the other or outer pair of bearing surfaces.
Patent GB-767652-A (GB)
Title: Improvements in the treatment of cream
Inventor: DUMMETT GEORGE ANTHONY
IPC: A01J11/04
Filed: 1953-03-24
Abstract: 767,652. Deodorizing cream. A. P. V. CO., Ltd. July 22, 1953 [March 24, 1953; May 29, 1953], Nos. 8445/53 and 15088/53. Class 49. In deodorizing cream, and so rendering it more suitable for butter making, the cream is passed successively through two or more separate stages of steam distillation, the distilling steam is caused to pass successively from the last to the first of the distilling stages (regarded in the direction of the cream flow), and the stages are maintained under pressures which decrease progressively from the last to the first of the stages whereby the steam flow is down the pressure gradient of the stages. With the installation of Fig. 1, cream is fed by a pipe 4 and through a heater 8 into the upper part of a, chamber 1, passed therefrom through a heater 11 into the upper end of a chamber 2, passed therefrom to a heater 14 into the upper end of a chamber 3, passed therefrom to a cooler 5 and discharged therefrom by a pipe 21. The cream is preferably subdivided by spray heads 9', 12<SP>1</SP> and 15<SP>1</SP> on entering the vessels 1, 2 and 3. Steam for distilling is fed by a pipe 6 into the chamber 3, passes therefrom to the chamber 2, passes therefrom to the chamber 1, and discharges therefrom by a pipe 7. The chambers 1, 2 and 3 are maintained under vacuum from a single source, the vacua in the different chambers being regulated by control valves 18' and 20' in the steam flow pipes. between the chambers. The steam may flow with the cream in one or more of the chambers, e.g. as shown in Fig. 2, the steam inlet pipe 20 may lead into the upper part of the chamber 1 and the steam outlet pipe 7 may be at the lower end of the chamber, so that the steam and cream descend together in the chamber. The steam may flow counter to, and then with, the cream in any chamber, e.g., as shown in Fig. 3, the cream supplied by a pipe 9 is delivered upwardly into the chamber 1 and, after ascending, it falls to the base of the chamber, while the steam passes downward from an upper inlet 20 to a lower outlet 7. Suitable operating conditions for the installation are: cream supplied at 150‹F. to chamber 1; chamber 1 maintained at reduced pressure of 23 in. of mecury, coresponding to b.pt. 145‹F.; cream temperature raised to 190‹F. before it enters chamber 2; chamber 2 maintained at reduced pressure of 13 in. of mecury, coresponding to b.pt. 185‹F.; cream temperature raised to 190‹F. before it enters chamber 3; chamber 3 maintained at reduced pressure of 12 in. of mecury, corresponding to b.pt. 187‹F.
Patent GB-374540-A (GB)
Title: Improvement in air or gas compressors
IPC: F04B25/00
Filed: 1931-03-19
Abstract: 374,540. Compound piston compressors. CASERTA, M. A.,' 943, 1st National Bank Building, Detroit, Michigan, U.S.A. March 19, 1931, No. 8453. Convention date, March 19, 1930. [Class 8 (i).] The pistons of a compound or multistage compressor are driven by shafts 1, 2 interconnected, e.g. by toothed gears, and driven at speeds inversely proportional to the pressures. The air &c. passes from the low pressure tc the high pressure cylinder through a pressure-equalizing and cooling vessel 23. The shaft 2 carries a ,rotary disc 19 controlling the passage of fluid from a port 21 to a device for starting an internal-combustion engine. The fluid is supplied through a port 22 connected, for example, to the conduit 13. According to the Specification as open to inspection under Sect. 91 (3) (a) the other shaft may operate an oil or water pump or a timer. This subject-matter does not appear in the Specification as accepted.
Patent GB-248195-A (GB)
Title: Improvements relating to electric fires
IPC: H05B3/16
Filed: 1925-03-30
Abstract: 248,195. Edinborough, P. M., and Metropolitan-Vickers Electrical Co., Ltd. March 30, 1925. Plug couplings. - A heating - element for an electric fire consists of a wire coiled on a support of refractory material on the ends of which are slidably mounted plug and socket or like couplings to which the wire is connected. In the arrangement shown the wire 4 is coiled on a tube 1 through holes 3 in the ends of which it passes to terminals 5 carried on rings 6 sliding on the ends of the tube 1. To the rings 6 are attached plug contacts 8, the screwed shanks 9 of which slide in slots 2 in the tube 1. Asbestos linings 7 are interposed between the rings 6 and tube 1. In assembling the fire the plugs 8 fit into sockets in refractory blocks mounted on a frame carrying connections to the supply.
Patent GB-1449722-A (GB)
Title: Drive mechanisms for pressure gauges
IPC: G01L19/14
Filed: 1974-02-25
Abstract: 1449722 Lirikwork G STRADELLA and U STRADELLA 25 Feb 1974 [27 Feb 1973 13 July 1973 17 July 1973] 8469/74 Heading F2K [Also in Division G1] In a pressure gauge drive mechanism the mechanism comprises a moulded plastics body 1 which includes a circular platform 3 and at least one projection which supports a Bourdon tube 5 one end of which is embedded in the moulding and includes a tube 6 communicating the interior of the tube 5 with the exterior of the body 1. In the embodiment shown the body has projections 7, 8 formed with blind holes which receive pins to hold on upper enclosure plate 13 in position. The free end of the Bourdon tube 5 is attached to an S-shaped steel wire link 10 which engages a tooth section 14 which rotates a shaft 11 carying a pointer 20. In a further embodiment, Figs. 8-11 (not shown), the tube 5 rotates a sector composed of two differently coloured areas one of which can be exposed through an aperture in a gauge dial to indicate the pressure. In a further embodiment, Figs. 12, 12A (not shown), the mechanism can be used as a wrist mounted depth gauge. An inverted transparent plastics cup member 18 is held in position by the inturned ends of a tube 17 folded over the cup 18 and the platform 3 provided with radial cut-outs 21.
Patent GB-1377166-A (GB)
Title: Cigarette lighters
IPC: F23Q2/28
Filed: 1972-02-24
Abstract: 1377166 Lighters BRAUN AG 24 Feb 1972 [28 Feb 1971] 8514/72 Heading F4F A cigarette lighter of the kind having an outer metal casing 1 containing an igniter mechanism which includes a coil 5, is characterized in that the coil and the metal casing constitute a capacitor and an aperture is formed in the metal casing adjacent the coil, an electrically-insulating cover-plate being fitted over the aperture. As shown, a front wall 6 and a rear wall 7 have respective apertures 4 and 8 provided with cover-plates 3. The igniter mechanism includes parts 9 and 10, and is actuated by a pivotal member 2. The coil may be arranged to project into one or both of the apertures 4, 8. The coverplates may be made of plastics, glass, or stone.
Patent GB-766103-A (GB)
Title: Improvements in and relating to rotary dust separtors
IPC: B01D45/14
Filed: 1955-03-24
Abstract: 766,103. Centrifugal separators. NAAMLOOZE VENNOOTSCHAP BRONSWERK. March 24, 1955 [April 9, 1954], No. 8569/55. Class 23 In a dust separator comprising a casing 1 having an inlet 2, a slotted drum 6 rotating within the casing, and a gas discharge chamber 3 communicating with the interior of the drum, the circumferential wall of the drum is formed by a large number of rods lying parallel to the drum axis and having an oval or circular cross-section. The drum has radial partitions and in drums formed of oval rods the major diameters of the rods are radial. The spacing of the rods is at least twice .their minimum cross-sectional dimension. The cleaned gas is discharged by means of a fan 7 integral with the drum, and the separated dust collects in a container 5.
Patent GB-1109588-A (GB)
Title: Improvements in or relating to nitrothiophene compounds
IPC: C07D413/12
Filed: 1967-02-22
Abstract: Novel compounds of the Formula I <FORM:1109588/C2/1> wherein R1 and R2 are C1- 5 alkyl or NR1R2 represents a morpholino, piperidino, pyrrolidino, hexamethyleneimino, heptamethyleneimino, 4 methylpiperazino or 3-azabicyclo-[3,2,2]non-3-yl radical, and their pharmaceutically acceptable acid addition salts, are prepared by condensing 5-nitro-2-thiophenecarboxaldehyde with an appropriate 3-amino-5-tert.-aminomethyl - 2 - oxazolidinone, followed, if desired, by salification.  Antiparasitic and antibacterial compositions, for topical or vaginal administration, comprise a compound I together with a pharmaceutical carrier.
Patent GB-350950-A (GB)
Title: Improvements in or relating to temperature actuated electrical devices
IPC: G01K5/16
Filed: 1930-03-17
Abstract: 350,950. Condensers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and LINSELL, A. A., 47, Crown Street, Brentwood, Essex. March 17, 1930, No. 8584. [Class 38 (ii).] In a wave-meter or like high-frequency oscillating circuit 5, 6, correction for temperature changes is obtained by a temperature-actuated variable condenser comprising a thermometer 1 having two electrodes 2<1>, 3<1> one or both of which are in electrostatic association with the expanding thermometric column 4. One or both of the electrodes may be shaped to give any desired law of capacity variation. The thermometer may be associated with the tuning unit 5 so that the coupling between the electrodes may be varied in addition to the variations due to temperature change. Thus the thermometer 1 may be curved, Fig. 6, and may alter its position relative to the second electrode 10, of curved tubular form, in accordance with the movement of the tuning unit. The thermometer 1 may be eccentrically mounted within the non- conducting stem 7 of the rotor, Fig. 4, to which the second electrode 3<1> is fixed, for the same purpose.
Patent GB-854722-A (GB)
Title: Improvements in flushing valves
Inventor: COVINGTON GEOFFREY NORMAN
IPC: E03D3/04
Filed: 1958-03-18
Abstract: 854,722. Flushing-valves. SUPERFLUSH Ltd. March 5, 1959 [March 18, 1958], No. 8708/58. Class 135. A liquid flushing valve comprises a casing 7, Fig. 1, having an inlet 9 and an outlet 10 which is controlled by a main valve 24, 25 carried by a hollow piston 21. Liquid from the inlet 9 passes through bleed passage 29 to the space 30 to bias the main valve to the closed position. A spring- loaded auxiliary valve 22 is housed in the piston and controls the passage of liquid from the space 30 to the outlet 10. The stem of the auxiliary valve has a telescopic extension 23 which co-operates with the inner end of a spring-loaded plunger 17. The extension 23 normally rests on the plunger but assumes an extended position on manual retraction of the plunger against the pressure of the spring 18. On the return movement of the plunger its inner end strikes the extension 23 to tilt the auxiliary valve to the open position. Liquid escapes from the space 30 and the inlet pressure moves the piston 21 upwardly to open the main valve 24, 25. The auxiliary valve returns to its closed position and the pressure in the space 30 builds up to close the main valve. The actuating knob 15 is screwed on to a spigot 14 of the end part 13 of the plunger and the spring 18 acts on a flange 16; the plunger movement being limited by a brass disc 20 on one side of which is a tallow-impregnated felt washer 19. In a modification, Fig. 3 (not shown), the plunger is actuated by a lever-like handle apertured to embrace a screw fixed to the plunger. In another example, Fig. 4, the extension 23 cooperates with a collar 35 screwed on the plunger 36 which is pushed in against a spring 37 by a rocking movement of the handle 40. The collar 35 may be slotted to receive the extension 23 when the plunger is depressed. The extension 23 may be spring loaded.
Patent GB-1536136-A (GB)
Title: Detergent composition
IPC: C11D3/36
Filed: 1975-03-03
Abstract: A detergent and cleaner composition with improved anti-greying and anti-ash actions and based on detergent compounds and phosphate builder salts is described. The composition contains 1-10 % by weight of a calcium complex-forming compound from the group of organic phosphonic acids and substituted polyacrylic acids with a pKCa<++> of 5-9.5 and their sodium, potassium or ammonium salts. The composition likewise contains 0.05-10 % of a protective colloid from the group comprising polyvinylpyrrolidones, alkylpolyvinylpyrrolidones, polyvinylpyrrolidone/vinyl acetate copolymers, casein, caseinate and gelatin.
Patent GB-268789-A (GB)
Title: Manufacture of diazotised mono-amines of the cyclic series
Filed: 1927-03-30
Abstract: 268,789. I. G. Farbenindustrie Akt.- Ges. March 30, 1926, [Convention date]. Diazo compounds are obtained from negativelysubstituted aromatic monamines by converting them into sulphamic acids and diazotizing the latter. The method is of particular advantage in diazotizing monamines substituted by halogen atoms or by nitro or hydroxy groups, and may also be applied to aminoazo compounds. The diazotization is effected at temperatures varying between the room temperature and 40‹ C. and concentrated solutions or suspensions of the sulphamic acid salts may be employed. The sulphamic acids are obtained by treating the amines with a halogen sulphonic acid or an ester thereof, e.g. chlorsulphonic acid, in presence of a tertiary base, e.g. pyridine; the reaction mixture is poured into caustic soda solution, and the sulphamate isolated after removing the tertiary base. The preparation of sulphamates and diazo compounds from the following amines is described in examples :-2 : 5-dichloraniline, 3 : 4 : 5-trichloraniline, 2 : 3- and 2 : 5-dichlor-4-toluidine, picramic acid, aminoazobenzene, and aminoazotoluene. Specifications 22097/10, 238,683 and 260,682 are referred to.
Patent GB-436352-A (GB)
Title: Improvements in or relating to incandescent wire ignition plugs
IPC: F23Q7/00
Filed: 1935-03-21
Abstract: 436,352. Incandescent electric igniters. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. March 21, 1935, No. 8786. Convention date, April 25, 1934. [Class 7 (iv)] The tubular insulated electrode b projects beyond the main part of the central electrode a. It may carry a disc f to which the wire i is attached ; the other end of the wire passes through an eccentric opening g in the disc into engagement with the electrode a, or the latter may have a projection entering the opening g.
Patent GB-269877-A (GB)
Title: Improvements in sifting apparatus
IPC: B07B1/46
Filed: 1927-03-30
Abstract: 269,877. Schubert, H. April 23, 1926, [Convention date]. Sieves and screens, forms and construction of. -A sifting grate comprises two sieve surfaces movable relatively to each other for the purpose of cleaning the grate. In the construction shown in Fig. 1, the grate comprises two sets of bars a, b, the bars b being movable in a vertical direction relatively to the bars a and preferably of less width. In a modification the bars are provided with inclined sides, and are relatively adjustable to vary the size of the sifting apertures. Fig. 6 shows a construction in which the relatively movable sieves consist of crosed bars a', b<3> provided on their upper and lower sides with notches.
Patent GB-241105-A (GB)
Title: Improvements in or relating to dining tables for use on ships and other passenger-carrying vehicles
IPC: B63B29/04
Filed: 1925-04-02
Abstract: 241,105. Savio, I. April 2, 1925. Table tops; fiddles.-A metallic plate 1 with a central hole is attached to a table by a bolt 9 and nut and may be removed and locked on the underside of the top when not required. The plate 1 carries tapered and cylindrical bottle holders 3, 4, 5 for wine and condiments, and spring arms 6 with clefts 6<c> to hold glasses 6<a> under the curved parts 6<b>. Arms 7 are attached in pairs to the edge of the metal plate 1 and have double clips 8 at their outer ends shaped to hold superposed dinner plates. The bottoms of the holders are preferably lined with cloth, and the plate 1 is held against rotation by straps 11 engaging lugs 10 on the plate and the edge of the table. When the plate is beneath the top, the locking nut 9 rests in a recess in the top.
Patent GB-129065-A (GB)
Title: Improvements in or relating to Obturator Rings.
Inventor: HECHT JOHN SEBASTIAN
IPC: F16J9/14
Filed: 1918-05-29
Abstract: 129,065. Hecht, J. S., and Dowdell. A. T. May 29, 1918. Piston packing.-In metal-packing-rings of cup-leather type divided at one or more points the joints are covered by plates made to conform to the section of the ring and having flanges overlapping the edges of the ring. In the form shown in Fig. 3, a plate B is formed with flanges B<1>, B<2> entering recesses in the edges of the packing-ring at the joint. The plate may be riveted to one end of the ring, as shown. Alternatively, the plate B may be dispensed with, one end of the ring being made of the section of the plate and overlapping the other end of the ring. In this construction, the ends may be halved or of unequal thicknesses, or bevelled, and the faces in contact may be corrugated &c. In a modification, one ring of the section of the plate B is nested in an ordinary ring. In the case of a ring consisting of two overlapping turns, the inner turn is made of the section of the coverplate B. Specifications 8571/15, 16120/15, 123,328 [Class 83 (ii), Metal articles &c.], 123,333, and 123,335 are referred to.
Patent GB-1305964-A (GB)
IPC: B22D11/06
Filed: 1970-02-24
Abstract: 1305964 Continuous casting M GIADOROU 24 Feb 1970 [24 Feb 1969] 8893/70 Heading B3F Molten material, such as Al from a channel 28, is fed between two moving series of coolantcavitied mould parts 7<SP>1</SP>-13<SP>1</SP> and 7<SP>11</SP>-13<SP>11</SP> to cast a continuous bar or strip P, the parts where they combine to form a long mould being moved at one speed by a pushing device such as a pinion or pinions 15, 16 engaging racks 14 on the parts 7<SP>11</SP>-13<SP>11</SP>, but being moved more rapidly in paths 6<SP>11</SP>, 511 by which they return to the melt feed end A. Hot water may be passed through the coolant passages 29, 30 to preheat the mould parts. Coolant water, for passing through the passages 29, 30 is collected from conduits 35, 36, Fig. 3, in feeders 31, 32 carried by the mould parts and having funnelled ends 31<SP>1</SP>, 32<SP>1</SP> elongated in the direction of casting and overlapping one another. Three catches 21, 22 on each of two endless chains 17, 18 move the mould parts in the return paths 6<SP>11</SP>, 5<SP>11</SP> by pushing against wheels 102 on the parts until the chains divert at the feed-end sprockets 19, 20. Stops 26 on the sprocket 20 and on the lower sprocket 19<SP>1</SP> at the withdrawal end B arrest the dropping of the parts from the catches 21 and 22. There may also be pushing arms (27) extending from the sprockets 19, 20 to ensure meshing of the racks 14 with the pinion 16. The pinions 15, 16 are driven at different speeds to ensure close combination of the mould parts, e.g. the pinion 16 may be driven through a friction clutch at the greater speed. The pinion 16 may be eliminated if the mould parts hook together end-to-end in the casting region. Instead of being below the mould parts, the racks 14 may be above or on the side of the parts. Projections (24, 25) on the mould parts and at least one locating pin 23 on the parts of one series 7<SP>11</SP>-13<SP>11</SP> ensure correct combination of the parts. The machine frame 1 is pivoted at 2 and mounted on rams 4 to vary the inclination, which, may range from horizontal to vertical.
Patent GB-269878-A (GB)
Title: Process of treating lithium-containing silicates by means of neutral alkali salts
IPC: C22B26/12
Filed: 1927-03-31
Abstract: 269,878. Metallbank und Metallurgische Ges., Akt.-Ges. April 22, 1926, [Convention date]. Lithium chloride and sulphate.-The treatment of siliceous materials containing lithium with neutral alkali salts is effected at temperatures of 700-950‹ C., and preferably takes place in a mechanical furnace, such as a mechanical roasting furnace, a rotary drum furnace, or a Dwight-Lloyd furnace, whereby the amount of alkali salt needed is reduced and the subsequent lixiviation may be effected directly, without grinding. When treating lepidolite containing 1.44 per cent lithium with potassium sulphate, a temperature of 880-920‹ C. is employed, whilst when potassium chloride is used, a temperature of 720-750‹ C. is requisite.
Patent GB-103942-A (GB)
Title: Improved Means for the Supply of both Light and Heavy Fuels to Internal Combustion Engines.
IPC: F02M1/00
Filed: 1916-06-27
Abstract: 103,942. MacLaren, F. L., MacLaren, H. B., and MacLaren Bros. June 27, 1916. Vaporizers, exterral.-A ported rotatable tubular valve 1 is employed to place the induction pipe in communication with a supplementary air passage 2 and with passages 3 or 4 for a petrol or heated paraffin mixture respectively. Petrol is supplied through the nozzle 9, and paraffin from the nozzle 13 is allowed to drop on to the hot exhaust pipe 10, around which the mixture is caused to circulate by a jacket 11 having a partition 12. The supplementary air is controlled initially by a suction-actuated valve 5, and the primary air for the nozzle 13 is admitted through a cap 15. Reference has been directed by the Comptroller to Specifications 9490/12 and 24034/13.