baber/WOPTO huggingface dataset:
Patent GB-1055401-A (GB)
Title: Imprvoements in or relating to mechanical transmission embodying overload release
Inventor: HALSALL HAROLD STANLEY
IPC: F16D43/206
Filed: 1964-03-02
Abstract: 1,055,401. Overload release clutches. KENNEDY VAN SAUN CORPORATION. March 1, 1965 [March 2, 1964], No. 8740/64. Heading F2C. An overload clutch comprises a ball 32 normally housed partly in a socket 50 in an insert 28 in a belt driven flywheel 12 and partly in a socket 21 in block 20 in an arm 17 fixed to a hub 16 which is keyed to shaft 10. A spring-loaded ball 44 biases ball 32 to the clutched position but the face 31 of insert 28 is shaped so that a reaction force tends to move ball 32 into socket 21 and on overload the ball 32 is moved, aided by centrifugal force, along a groove 24 in ring 23 into socket 21 where it is held by ball 44, a plug 22 being removed to re-engage ball 32 with the flywheel. In the engaged position the centre 33 of ball 32 lies inside the plane face of arm 17 which faces the flywheel. The spring loading of ball 44 can be adjusted by nuts 42, 41 on a shaft of ball seat 43. On disengagement due to overload, kinetic energy of ball 32 is dissipated by frictional resistance between balls 32, 44 and between ball 44 and its seat 43.
Patent GB-661783-A (GB)
Title: Manufacture of vinyl sulphones
IPC: C07C317/10
Filed: 1949-03-31
Abstract: Vinyl sulphones RSO2CH : CH2, wherein R is a stable monovalent group containing a carbon atom linked to the sulphur atom, are made by heating a mercaptan RSH with ethylene chlorhydrin in alkaline solution to form RSCH2CH2OH, the hydroxyl group of which is replaced by chlorine by heating with hydrochloric acid and the sulphide is oxidized to the corresponding sulphone which is dehydrochlorinated by reaction with an alkali metal hydroxide in aqueous solution to obtain the vinyl sulphone.  R may be alkyl or alkaryl groups or aryl groups unsubstituted or substituted with nuclear halogen or alkyl groups and many such groups are specified together with the sulphones obtained therefrom, including propyl, dodecyl, cyclohexyl, naphthyl, tolyl, chlorphenyl and benzyl vinyl sulphones.  Crude mercaptans as obtained from petroleum sources or as foreruns from the preparation of aromatic phosphate esters from cresylic acid, may be used.  Reaction of the mercaptan with the chlorhydrin is usually effected by refluxing in water or in an inert organic solvent, e.g. methanol, ethanol or dioxane, using the mercaptan as its alkali metal salt. Conversion to a chloro derivative may be effected by refluxing at 110-120 DEG C. with 1-5 mols, of conc. aqueous HCl.  Oxidation may be effected by conventional methods, e.g. by 26 per cent aqueous hydrogen peroxide at about 90-120 DEG  C. in acetic acid solution. Dehydrochlorination may be effected with 5 to 40 per cent aqueous sodium hydroxide at 20-80 DEG C., preferably 30-40 DEG  C.  In examples: (1) thiophenol (as the potassium salt); (2) lauryl mercaptan (as the potassium salt); (3) benzyl mercaptan (as the potassium salt); and (4) crude "cresyl" mercaptans obtained as a petroleum purification by-product are converted into the corresponding vinyl sulphones by the methods outlined above, oxidation in the first three cases being with hydrogen-peroxide-acetic acid and in (4) being with sodium bichromate-sulphuric acid.
Patent GB-243665-A (GB)
IPC: C10B27/00
Filed: 1925-04-02
Abstract: 243,665. Soc. 1'Air Liquide, Soc. Anon. pour l'Etude et l'Exploitation des ProcÚdÚs G. Claude. Nov. 28, 1924, [Convention date]. Coking processes.-In the distillation of coal or lignite, at the end of the heating process the atmosphere present in the retort or oven is displaced by a current of nitrogen, air, or combustion products, so that the hydrogen and methane ordinarily retained in the coke may be liberated, due to the fact that their partial pressures are reduced. The gases employed may be superheated, and the mixture of gases obtained may be subjected to partial liquefaction or another separation process for the extraction of the hydrogen and nitrogen for use in the synthetic production of ammonia.
Patent GB-993256-A (GB)
Title: Improvements relating to threshing cylinders
IPC: A01F12/18
Filed: 1962-03-07
Abstract: 993,256. Threshing machines. MASSEY-FERGUSON SERVICES N.V. March 7, 1962 [March 13, 1961], No. 8868/62. Heading A1F. A threshing cylinder 14 comprises a supporting drum 54 for mounting a cylindrical surface 80 composed of a resilient material such as rubber which co-operates with a concave 20 for threshing crop which is first passed by an elevator 12 through a stripper-beater 16. The cylindrical surface 80 has annular supports at either end which are secured to the supporting drum 54 by retaining members held by screws 66, 72 and it is also supported by radial portions 90 which bear on the drum 54. The surface 80 is reinforced by a fabric surface 82, by wire rings 96 which are concentric with the surface and by fabric bonds 94 which undulate in passing through the radial portions. A zig-zag tread is provided on the surface 80. A member 74 is incorporated in one end wall of the drum 54 and communicates with a passage 76 whereby compressed air or liquid can be supplied to the interior of the surface 80 to act as further supporting means. In an embodiment the supporting drum and cylindrical surface are disposed as shown in Fig. 5, the radial portions being continuous but having small openings 100 for the passage of fluid. In a further embodiment the radial portions are formed as a hollow cylinder of porous rubber.
Patent GB-780254-A (GB)
Title: Apparatus for manufacturing china or other earthenware articles
IPC: B28B5/08
Filed: 1955-03-15
Abstract: 780,254. Moulding plates, saucers &c. THACKWELL, L. W. March 15, 1955, No. 8872/54. Class 87(2). Powdered clay is injected through a nozzle 18 into one of four moulds 9 mounted on an intermittently rotated table which is then rotated through 90 degrees, where the clay is pressed by a die 19. The die 19 and injection head 14 are moved vertically by a hydraulic plunger 17. During the next quarter revolution of the table a cam track 15 causes the mould 9 to be lifted, and as it rises, a friction plate 25 rotates the mould, so that tools 22, 23 trim the moulded article. At the fourth station, the article is removed manually for firing. The mould may have vents for the escape of air.
Patent GB-894305-A (GB)
Title: Method of and apparatus for producing laterally convex teeth on spur and helical gearwheels
Inventor: REIMANN OTTO
IPC: B23F23/12
Filed: 1959-03-13
Abstract: 894,305. Gear-finishing. ZAHNSCHNEIDEMASCHINENFABRIK MODUL VEB. March 13, 1959, No. 8880/59. Class 83 (3). A gear-shaving machine comprises means for mounting a workpiece on a stationary axis and means for moving a tool 2 angularly to-andfrorn the workpiece to produce a crowned gear. An angularly adjustable table 6 carries inclined guides 7, 10 and a slide 5 on which is mounted a shaft 17. An upper table 4 is carried by an eccentric 15 on the shaft 17 and a block 8 sliding in the guide 7. The tool 2 is mounted on a bracket 3 angularly adjustable on the table 4. When the slide 5 is reciprocated, the table 4 is rocked by the block 8 engaging the guide 7 and the shaft 17 is raised and lowered as the eccentric is oscillated by levers 12, 13, 14 connected to a block 11 sliding in the guide 10. In a modification, the eccentric is oscillated by gears engaging a rack on the table 6.
Patent GB-351080-A (GB)
Title: Improvements in or relating to means for casting concrete in situ for the erection of buildings and the like
IPC: E04G11/28
Filed: 1930-05-06
Abstract: 351,080. Casting walls in situ. WOOD, T., The Bungalow, Church Street, Amesbury, Wiltshire. May 6, 1930, No. 8892. [Class 20 (ii).] Means for casting concrete in situ comprises shutters which are spaced apart by bars, or like members, extending across and lying on the shutters and having depending ribs or projections which engage between the inner faces of the shutters and which form recesses in the concrete for the reception of bolts for supporting the shutters for the next course, the shutters being held firmly against the said projections by external wedges. In the construction of a cavity wall, the shutters 1, Fig. 1, in casting the lowermost course, are arranged between the ribs 2a of upper and lower locating bars 2. The outer shutters are held firmly in position by wedges 3 while the inner shutters are held by upper and lower wedges 4 arranged on a rod 4a. The lower wedge 4 is secured to the bar and the upper wedge is slidably mounted thereon. The shutters are rectangular in shape and comprise upper, lower, and end rails suitably braced by channel-section members. The inner faces of the shutters are each covered by a sheet of thin wood which again may be covered by sheet metal. After casting the first course, the lower bar 2 is withdrawn longitudinally when the wedges and shutters have been removed. The recesses left in the walls 9 by the projections 2a of the upper bar serve to receive bolts 5, Fig. 3, for supporting the shutters for the next course, brackets 6 and nuts 7 being used also for this purpose. For casting a ceiling integral with the wall, the clamping plate 6, facing the interior of the building, is replaced by a block 11, Fig. 5, which serves to support horizontal shutters 12. The bolts 5 may be left in the wall to act as reinforcing members. Walls without cavities or with two or more cavities may be constructed in a similar manner.
Patent GB-824488-A (GB)
Title: Motor for industrial and household sewing machines
IPC: D05B69/12
Filed: 1956-03-21
Abstract: 824,488. Variable-speed gearing for sewing machines. GERBAUD, A. H. March 21, 1956 [March 23, 1955], No. 8898/56. Class 80 (2). [Also in Group XXXV] A motor for sewing machines embodies a two-speed gear giving a high-speed drive and a low-speed drive for sewing stitch by stitch. A hollow shaft 2 fixed to the motor casing 1 carries the stator 3, the rotor 5 being carried in a member 4 rotatably supported on bearings 6, 7 on the shaft 2. A sliding member 8 housed in the shaft 2 carries rotatably a driving pulley 67 for the sewing machine and a casing 40. A member 53 keyed at 54 to the member 8 has shafts 52, 57 respectively loosely supporting a pinion 51 integral with a worm 50 and a pinion 55 integral with a worm-wheel 56. Pinion 51 meshes with pinion 55, worm 50 meshes a wormwheel 49 connected to the casing 40 by a freewheel clutch 45 and worm-wheel 56 meshes a worm 60 fixed to a freely supported sleeve 58. A plate 61 on the sleeve 58 has a friction pad 62 adjacent a friction pad 63 resiliently carried by the end plate 4b of the member 4. The casing 40 carries a friction pad 70 spaced from the plate 4b a slightly greater distance than the distance between the pads 62, 63 and a friction pad 44 adjacent an end of the motor casing 1. In the position shown a compression spring 11 urges the sliding member 8 to the left so that the pad 44 bears on the casing 1 and acts as a brake to hold the casing 40 and the pulley 67 stationary. The sliding member 8 passes through cam members 14, 20 separated by balls 22. Cam 20 is fixed, cam 14 is rotatable and has a handle 15, and a spring 23 presses the two cams together. Upon initial rotary movement of the handle 15 the camming action of the balls 22 causes slight axial movement of the member 8 in the direction of the arrow. This produces disengagement of the pad 44 and the casing 1 and engagement of the friction pads 62, 63 so that the rotation of the member 4 is transmitted through the pads 62, 63 and through the reduction gearing and free wheel 45 to the casing 40 and pulley 67 to give a very slow drive. If further movement is given to the handle 15 the friction pad 70 engages the plate 4b and a direct high-speed drive from the members 4 and 40 to the driving pulley 67 occurs. In a modification the easing 40 is omitted, the member 4 is extended to enclose the gearing, and the driving pulley 67 has secured to it a combined brake and double clutch device. In another modification the free wheel 45 is replaced by a friction clutch. In these two modifications the member 53 carrying the gears is fixed to the hollow shaft 2.
Patent GB-493098-A (GB)
Title: Improvements in or relating to the gaseous treatment in vacuo of wool and like fibres or materials made therefrom
Filed: 1937-03-30
Abstract: Wool or like fibre treated with chlorine or bromine according to Specification 417,719 is subjected before, during or after such treatment to the action of sulphur dioxide gas or other volatile compounds which on treatment with water are hydrolysed to give acids, and act as reducing agents to the natural sulphur of the wool.  In an example, loose wool is dried and treated with chlorine according to Specification 417,719; excess chlorine is blown out, the chamber re-evacuated and sulphur dioxide gas admitted and circulated as described in Specification 475,742; excess sulphur dioxide is blown away and the material removed; it is resistant to felting and shrinking and retains its softness and whiteness.  Alternatives to sulphur dioxide are inorganic halides such as phosphorous trichloride, sulphur dichloride, sulphur monochloride and thionyl chloride.
Patent GB-433763-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of sliding clasp fasteners
IPC: A44B19/46
Filed: 1935-03-23
Abstract: 433,763. Machines for manufacturing sliding-clasp fastenings. NAGELE, K. F., 109, Teupitzerstrasse, Neuk÷lln, Berlin. March 23, 1935, No. 9108. Convention date, March 23, 1934. [Class 44] A machine for clamping sliding-clasp fastener elements in spaced and repeated adjustable lengths on a tape comprises eccentric - actuated sliding - rocking clamping arms which serve at the same time to pull the tape ; screw conveyer members with the threads having lead over only a portion of the circumference which feed forward positioned but unclamped elements only when the ahead elements are being clamped and the tape pulled; and a spring-pressed wheel which beds the beaded edge of the tape down in the positioned but unclamped elements. A loose mass of elements placed in a rotary drum 1 are sorted by passing through an adjustable narrow circumferential slot thereof into a shoot 13 fitted with a projection 14 whereby the elements are made to lie with their heads downward. Screw conveyer cylinders 15, 16 remove the bottom element when that circumferential portion of the threads 17 having lead engages the element. The elements, spaced by the pitch of the thread 17, are moved forward by the lead portion of the thread and a spring-pressed wheel 28 with a middle groove to take the web of the tape 27 beds the beaded edge of the tape into the fork of the elements and aligns the elements by pressing their heads on to a rail 18. The elements are clamped by a series of pressing operations in the different width recesses of the clamping arms 21, 22. These arms are actuated by eccentrics 23, 24 and have slotted ends fitting over eccentrically adjustable pins 25, 26. The sliding rocking motion of the arms 21, 22 is used to pull the tape 27 by the arrangement shown in Fig. 5 comprising a spring detent 43, adjustable by a stop screw 46, which after a certain point in the inward rocking movement pulls the tape through. The shoot 13 is vibrated by a plunger 49 actuated by an airpulsing plunger 48. The machine is driven from a motor 8 through a shaft 9 which with appropriate gearing actuates the clamping arms 21, 22, the air-pulsing plunger 48, and the sorting drum 1 ; the screw conveyer cylinders 15, 16 are driven from a shaft 8<a> and gearing 19, 20. The flow of elements down the shoot 13 is stopped, and therefore the fitted length of stringer determined, by the entry of a catch 38 on a shaft 37 when this shaft is allowed to turn by the dropping of a lever 32 into a slot 33 in an endless-band loop 31. To vary the fitted length of stringer the loop is adjusted in length by hooking up its end. The loop is tensioned by a weight and is perforated for engagement by a toothed wheel 34 driven from the conveyer cylinder 16 through worm gearing 35. The loop slot 33 also actuates a counting mechanism 40. Thus the continued operation of the machine produces a series of spaced repeated stringer lengths and counts the number produced.
Patent GB-1508245-A (GB)
Title: Moisture indicating apparatus
IPC: G01N29/02
Filed: 1976-03-08
Abstract: 1508245 Acoustic measuring WESTING- HOUSE ELECTRIC CORP 8 March 1976 [10 March 1975] 09160/76 Heading G1G A system for detecting the presence of moisture droplets within a vapour flow confined within a conduit 24 comprises a pair of sonic energy detectors 54A, 54B spaced a predetermined distance from each other along the conduit, means 56A- 62A, 56B-62B, for converting the detected sonic energy into respective electrical signals, means 64A, 64B for comparing the magnitude of each electrical signal with a predetermined magnitude to generate respective first signals 92, 96 when the electrical signals differ in magnitude by at least a predetermined amount from said predetermined magnitude, means 88 for determining the time difference T' between the first signals, and means 90 for comparing the time difference T' with a predetermined time value T to generate a second signal indicating the presence of moisture droplets when T' is substantially equal to T. As described, the system is applied to detecting water droplets in the steam inlet of a steam turbine, Fig. 1 (not shown). The detectors 54A, 54B each consist of a loop of wire mounted on the outside of the conduit 24. If the detector 54A is located close to the steam source, the amplitude of the output signal of amplifier 60A increases markedly when water droplets are present. The detector 54B is of course located remotely from the steam source and the amplitude of the output signal of amplifier 60B decreases markedly when water droplets are present. Calibrated indicators 104, 106 are provided to give an indication of the relative amount of moisture in the steam. Preferably, a second signal is provided by means 90 if the time difference T' falls within the range T to T LOW, the second signal either being used to generate an alarm or to shut-down the turbine automatically.
Patent GB-179389-A (GB)
Title: Improvements in and relating to roller bearings
IPC: F16C43/06
Filed: 1921-03-24
Abstract: 179,389. Leon, K. O. March 24, 1921. Roller bearings.-To insert convex rollers a into concave races, one or both of the races is provided with a. recess, groove, or flat d, the rollers being turned on their sides as shown in dotted lines in Fig. 1, and swung round into position after insertion. The arrangement permits an increased breadth of roller. The various radii of curvature may be such that point contact is obtained under no load and line contact under load.
Patent GB-926808-A (GB)
Title: Manufacture of involute toothed gear wheels
IPC: B21H5/02
Filed: 1961-03-13
Abstract: 926,808. Rolling. R. C. CLERK. March 13, 1962 [March 13, 1961], No. 9182/62. Class 83 (4). A method of final forming of gear-wheel teeth comprises rolling the gear between a pair of racks whose teeth have a greater pressure angle and pitch than the gear teeth, the difference in pitch between the rack and gear teeth being approximately inversely proportional to the ratio of the cosines of the pressure angles of the gear and rack teeth. The pressure angle of the rack teeth is preferably within 5 degrees of the ideal angle, which is equal to the mean of the pressure angle and half the angle between the tangents to the obversed involutes of any tooth at the tip of the tooth, said tooth and pressure angle being those of the gear before finishing. The tips of the rack teeth may be radiused so as to roll the roots of the gear being finished. At least one additional pair of racks may be used having a slightly different pressure angle and pitch to the previous rack so as to roll the pitch line not rolled by the preceding racks. Additionally, a final set of rack teeth may be used whose teeth are tapered off by an amount equivalent to the rolling deflection of the machine so as to unload the machine without shock. Specification 925,666 is referred to.
Patent GB-1455092-A (GB)
Title: Grase shears with an electric motor drive
IPC: A01G3/06
Filed: 1974-03-01
Abstract: 1455092 Machinery guards WOLF-GERATE GmbH 1 March 1974 [16 April 1973] 9335/74 Heading F2J A safety guard for an electric motor driven scissor type hand operated grass shears having a lower fixed blade 2 and an upper movable blade 3 oscillatable about a fixed pivot 12 by an electric motor driven eccentric (not shown) engageable with a slot 13 in the movable blade 3, comprises a blade surrounding plastics on sheet metal protective cover 5, 7 which is spring loaded at 15, via a plate 8 connected to the cover 5, 7, to bias the cover 5, 7 to its extended, i.e. guarding position (Fig. 2) in which it completely covers the blades 1, 2, the covers 5, 7 having an underside bead 18 which, in use, engages the ground, as the shears are forwardly moved, to retract the cover 5, 7 (Fig. 3) and expose the blades 1, 2 for grass cutting, &c. A projecting peg 19 on the cover serves for manual retraction of the cover 5, 7 when the shears are not in contact with the ground, e.g. for hedge cutting &c. Screws 10, fixed in the fixed blade 2, engage longitudinal slots in the plate 8 to guide the cover and provide end stops for the fully extended (closed) and retracted (open) positions of the guard cover 5, 7. Figs. 4 to 6 (not shown) illustrate a similar guard cover in which the lower cover 7 and bead 18 are replaced by a roller (21) extending transversely across the underside of the tips of the blades 2, 3, the roller serving jointly to partly cover the blade as a protective measure and, as before, to engage the ground, in use, to retract the guard cover for grass cutting.
Patent GB-1018592-A (GB)
Title: Coiler for coiling strip material
Inventor: SIEGER MAURICE PAUL
IPC: B21C47/06
Filed: 1962-03-12
Abstract: 1,018,592. Winding webs. UNITED ENGINEERING & FOUNDRY CO. March 8, 1963 [March 12, 1962], No. 9365/62. Heading B6B. [Also in Division B3] Apparatus for coiling strip comprises means for conveying moving strip issuing in a substantially horizontal path of travel to said apparatus, a mandrel upon which the strip is coiled, and means for positioning said mandrel, first in a position in close proximity to said path of travel to receive the strip, and second in a position more remote from said path of travel of the strip. Strip S from a hot strip mill passes between pinch rolls 13, 14 and over a run-out table 9 to a coiler 11, or over the coiler 11 to a second coiler 12, Fig. 5 (not shown). Motor adjustable side guards 69, 70, 71 guide the strip. Each coiler comprises a mandrel 15 on a shaft 55, Fig. 3 (not shown), journalled in a frame 59 swung about a pin 62 by motor-driven screws 66 and piston-and-cylinder means 65, the mandrel being rotated by motor-driven gearing concentric with the pin 62. In operation, to receive strip, the mandrel 15 is raised and wrapper roller assemblies 16, 17, 18 are swung in by piston-and-cylinder means 29, 30, 31, Fig. 5 (not shown). After several convolutions have been wound the wrapper assemblies are withdrawn. As the end of the strip leaves the rolling mill the pinch roll 13 is lowered to tension the end part of the strip and the wrapper assembly 18 is swung in. The mandrel 15 with the completed coil is then lowered and the coil removed by a coil car 53. The next strip from the mill passes over an apron 51 on the wrapper assembly 18, then over driven rollers 44 and apron 47 on a table 42 moved to a position above the lowered mandrel 15 by piston-andcylinder means 49. The strip S is thus directed to the succeeding coiler. The mandrel 15 may be lowered as soon as the leading end of the strip is tightly wound thereon or lowered gradually, as the coil builds up, under control of a tachometer. The coilers may be upcoilers.