baber/WOPTO huggingface dataset:
Patent GB-533660-A (GB)
Title: Improved control mechanism for variable ratio gearing
IPC: F16D23/04
Filed: 1939-10-12
Abstract: 533,660. Variable-speed gearing. GENERAL MOTORS CORPORATION. Oct. 12, 1939, No. 27703. Convention date, Nov. 9, 1938. [Class 80 (ii)] In variable-speed gearing in which a positive coupling of some of the trains is effected with the aid of synchronizing friction-clutches, a lever arm for shifting the gears is so formed as to impart a relatively slow and powerful movement to effect the engagement of the synchronizing-members, and a quicker and less powerful movement to effect the positive engagement. The invention is described as applied to a known type of gearing, in which a gear 12, Fig. 1, on the driving-shaft, or a wheel 22 geared thereto, can be connected to the driven shaft 20, which is contained within the driving-shaft, by a slidable toothed coupling-member 30 splined on the driven shaft. The coupling-member is adapted to engage with internal clutch-teeth 18, 24 on members carried by the driving gears 12, 22 in order to give the second and third speeds. The low speed and the reverse are obtained from a gear 36 rotating with, and slidable on, the coupling-meinber 30, the gear being driven in either direction from a counter-shaft. Coned friction-members 14, 28 carried by the gears 12, 22 can be engaged by floating friction clutchrings 50, 60 connected to the coupling-member 30, and having a lost-motion connection with the driven shaft. The coupling-member is shifted in one or the other direction, to give the second and third speeds, by an arm 82 on a sliding rod 84, the friction clutch-members being engaged before the positive engagement is effected. An arm 88 on a sliding rod 90 shifts the gear 36, to give the first speed and the reverse. The rods 84, 90 are shifted by crankarms on a shaft 100, Fig. 3, which is under the control of the driver, and is movable endwise to engage either crank-arm with its rod. The arm 102, that shifts the rob 84 controlling the second and third speeds, has a cam-shaped end 104 formed with a convex portion near the axis of rotation, for effecting a slow forceful movement to engage the synchronizing-members, the outer end of the cam imparting a quicker and less forceful movement to effect the positive engagement. The arm that shifts the rod 90 for first speed and reverse has a cam-shaped end of uniform curvature.
Patent GB-1098894-A (GB)
Title: Improvements in or relating to telecommunications exchange systems
IPC: H04L12/52
Filed: 1966-06-22
Abstract: 1,098,894. Telegraphy. SIEMENS A.G. June 22, 1966 [June 23, 1965], No. 27808/66. Heading H4P. In an exchange system in which communication between subscribers takes place by way of a multiple line, i.e. a line in which each bit of a data signal energizes a combination of channels, the subscribers are divided into low and high activity groups. Corresponding groups of magnetic core connecting sets are provided in the exchange, and each set can receive data from any subscriber but can transmit only to any subscriber in the corresponding group. When a subscriber Tnl wishes to transmit it sends dialling pulses to a setting- up unit ZES which selects a free connecting set Z/E in the group ZVS of such sets corresponding to the called subscriber, adjusts that connecting set to energize a binary decimal combination of channels SV2 unique to the called subscriber Tn500, and adjusts the calling subscriber circuit KS 1 to energize a binarydecimal combination of channels SV1 corresponding to the selected connecting set. The binary-decimal coding is transformed to decimal for application to the connecting sets, and the binary-decimal from the connecting sets is transformed to decimal prior to application to the called subscriber circuit KE500. The various multiple lines SV1, SV2 and EV may each comprise separate lines or a single line carrying several frequencies.
Patent GB-1200430-A (GB)
Title: Flower pot for the cultivation of plants and flowers
Inventor: BATOSTI MARIO
IPC: A01G9/02
Filed: 1969-06-02
Abstract: 1,200,430. Flower pots. M. BATOSTI. 2 June, 1969, No. 27833/69. Heading A1E. An assembly of nestable plant pots comprises a column of said pots 1 with the bases 3 and bottom edges 2 of one pot nestable in the top of the next lower pot each pot having a mesh base 3 to allow passage of water but retention of soil. A lateral spout 4 with aperture 5 accommodates the plant top for exposure to light. A second embodiment provides a divided pot, the lower half containing bottom and lateral wall holes, the top containing the lateral spout.
Patent GB-519544-A (GB)
Title: Improvements in or relating to powders for use as, or as ingredients of, toilet preparations
IPC: A61K8/64
Filed: 1938-09-23
Abstract: 519,544. Cosmetic powders. CLAYTON, F. H., and BROCKLEHURST-WHISTON AMALGAMATED, Ltd. Sept. 23, 1938, No. 27841. [Class 81 (i)] [Also in Group IV] Cosmetic powders are prepared by dissolving silk fibres in an aqueous alkaline solution or suspension of a heavy metal hydroxide, e.g., nickel or copper, and precipitating the clarified solution by means of an acidic agent consisting of water or an organic liquid, containing an acid substance which can form with the heavy metal a derivative soluble in the medium, and separating and drying the precipitate. The solvent solution is conveniently a suspension of copper hydroxide in caustic soda and the precipitating agent ethyl alcohol containing acetic acid. The acidity of the solution is adjusted to lie on the acid side of the isoelectric point of silk fibroin, i.e., about pH 3.8. Colouring matter may be added to the solution of silk or to the precipitate while in the wet state.
Patent GB-533179-A (GB)
Title: Attachment for tobacco pipes and cigarette holders
IPC: A24F7/04
Filed: 1939-10-13
Abstract: 533,179. Tobacco pipes &c. KLASSEN, J. I. Oct. 13, 1939, No. 27877. [Class 130] A rubber or like elastic cap A, fitting over the end of the mouthpiece of a pipe or holder and having a slit F through which smoke is drawn, is stiffened by a ring C having arms D extending over the lip of the mouthpiece. The slit F may be located in a bulge at the end of the cap, which is more flexible than the annular pad fitting around the mouthpiece.
Patent GB-279479-A (GB)
Title: Manufacture of vat-dyestuffs
IPC: C09B3/30
Filed: 1927-10-20
Abstract: 279,479. Soc. of Chemical Industry in Basle. Oct. 20, 1926, [Convention date]. Grant of Patent opposed. Violanthrone and isoviolanthrone dyes.- Violanthrone and its substitution products such a@ 6 : 6<1>-dimethylviolanthrone are converted by sulphonating agents such as sulphuric acid monohydrate, fuming sulphuric acid, or chlorsulphonic acid, into sulphonic acids which dye cotton in bluish tints from the vat. By alkali fusion the sulphonic acids yield other dyes, probably oxy compounds, which dye cotton blue to grey tints not fast to chlorine. The oxy compounds yield further products, which dye cotton in fast shades, by treatment with etherifying agents such as chlorinated hydrocarbons, acid esters, aldehydes, or acetals, or with halogenating agents, or in either order with an etherifying and halogenating agent. According to examples (1) violanthrone is sulphonated with weak fuming sulphuric acid and the sulphonic acid isolated as the sodium salt which dyes cotton in blue shades from the vat; a redder dyeing dyestuff is obtained if sulphonation is effected in presence of boric acid; the violanthrone sulphonic acid is converted into a blue-grey vat dyestuff by fusion with caustic potash with or without a diluent such as aniline: (2) the product of alkali fusion is methylated with p-toluenesulphonic methyl ester in trichlorbenzene or nitrobenzene or other nitro hydrocarbon the product dyes cotton from the vat in blue-grey tints fast to chlorine; ethylation and aralkylation are also mentioned; (3) after chlorination with sulphuryl chloride in nitrobenzene the methylated product yields more bluish dyeings; (4) cotton is dyed with the methylated product from the vat at 50-60‹ C. The sulphonation of 6 : 6<1>-dimethylviolanthrone, and the alkali fusion of the sulphonic acid so obtained and etherification of the product are also specifically mentioned. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the treatment of isoviolanthrone and its substitution products. This subject-matter does not appear in the Specification as accepted.
Patent GB-363707-A (GB)
Title: Improvements in or relating to signposts
IPC: G09F13/00
Filed: 1930-09-18
Abstract: 363,707. Signs. HOBKIRK, W. T., 26, Bunyan Road, Kempston, Bedfordshire. Sept. 18, 1930, Nos. 27954 and 32644. [Class 3 (ii).] A sign-post comprises a polygonal casing g having as many sides 1 .. 4 as there are diverging roads, each side being disposed at right-angles to the line of approach and having in its own plane a projection in the shape of an arrow head or the like forming a direction indicator. The casing may be internally illuminated, or the direction wording &c. may be formed of reflex lenses to show up when illuminated by vehicle lamps. Coloured lamps 9, 10, 11 for traffic control may show through coloured lenses in the casing, mirrors 5 .. 8 within the casing illuminating the faces 1 .. 4 with correspondingly coloured light.
Patent GB-815097-A (GB)
Title: Improvements in and relating to fibrous articles
IPC: C09J7/21
Filed: 1955-10-03
Abstract: 815,097. Coated adhesive fibrous materials. UNION CARBIDE CORPORATION. Oct. 3, 1955 [Oct. 5, 1954], No. 28018/55. Class 140. An adhesive fibrous article comprises a fibrous material coated with from 3 to 10 per cent by weight of the product of a dimethyl silicone polymer, which may contain methyl groups and silicon atoms in the ratio range of from 1.9: 1 to 2.2: 1, having a viscosity of at least 200,000 centipoises at room temperature which is cured in situ, the coating having a thickness not greater than 1 mil. The fibrous material may be an inorganic fabric, e.g. glass or asbestos cloth, or an organic fabric, e.g. cotton fabrics or cloth such as air permeable cotton conveyer belt, rayon cloth, blends of cotton and rayon cloth, nylon fabric, parchment or kraft paper. The polymer may be applied to the fibrous material in the form of a plain or emulsified solution in an inert organic volatile solvent, e.g. toluene, chlorinated compounds such as carbon tetrachloride, ethers, mineral spirits such as naphthol mineral spirits, aliphatic solvents or petroleum fractions which contain from 10 to 15 per cent by weight of aromatic solvents, which may contain a mica or iron oxide filler, and also an organic curing agent, e.g. peroxide compounds such as dibenzoyl or t-butyl peroxide, in amount from 10 to 15 per cent by weight of the polymer. " Adhesive " is defined as being the property by virtue of which adhesion or adherence of sticky and tacky materials to adhesive products through contact is inhibited or prevented.
Patent GB-853281-A (GB)
Title: Telescopic pit prop
IPC: E21D15/15
Filed: 1958-09-01
Abstract: 853,281. Pit props. BEYER, R. Sept. 1, 1958 [Sept. 2, 1957], No. 28025/58. Class 20(2) A pit prop of telescoping parts 1, 2 adapted to be locked together by a clamp 3 and provided with a foot 13 of stirrup form having openings, at both sides, comprises cutting blades 14 which break up the cake of rubble which enters the lower member 1 through setting holes 11, to allow it to escape from the prop through the openings O. The prop may be of square cross-section and the cutting blade in the form of a cross welded between the lower member 1 and the foot 13. The clamp is operated by a transverse wedge 6.
Patent GB-140990-A (GB)
Title: Improvements in and relating to automatic brakes for gramophones and the like
IPC: G11B17/02
Filed: 1919-11-12
Abstract: 140,990. Rodway, J. I. Nov. 12, 1919. Periodic.-Relates to a springless brake such as that described in Specification 14002/14. A plate 4, which is screwed to the top of a gramophone cabinet, carries a post to which is attached a brake lever 1. To one end of this lever is fixed a pad 8 curved eccentrically to the pivot of the lever 2, and to the other end an upright rod 12, on which is screwed a conical contact-member 17. At the close of a record the tone-arm presses against the contact-member, which is made of fibre, vulcanite, or the like, thus bringing the pad into contact with the edge of the turntable, which tends to carry the pad round, thus increasing the brake pressure. The pad may be arranged on the brake-lever as in Specification 14002/14.
Patent GB-1429359-A (GB)
Title: Floating journal pin in multiple gear differential
IPC: F16H48/29
Filed: 1973-06-13
Abstract: 1429359 Differential gearing V E GLEASMAN 13 June 1973 [18 July 1972] 28067/73 Heading F2D In a differential gear comprising a driven casing 10<SP>11</SP> housing worm side wheels 11, 11<SP>1</SP> driving output shafts 12, 12<SP>1</SP>, and transfer gear complexes 14, 15 and 14<SP>1</SP>, 15<SP>1</SP> interconnecting the side wheels, shafts 16, 16<SP>1</SP> carrying the transfer gear complexes are retained in the casing by pins 20 coacting with at least one end of pairs of shafts 16, 16<SP>1</SP>. Each transfer gear complex comprises a worm 14 or 14<SP>1</SP> meshing with a respective side wheel 11, 11<SP>1</SP> and flanked by balance gears 15, 15<SP>1</SP>, the balance gears of each pair being in mesh with each other. Three such pairs may be spaced circumferentially around the side wheels. As shown, the pins 20 are retained by a cover 100. In another embodiment, in which retaining pins are provided at each end of the shafts 16, 16<SP>1</SP>, the casing is formed in two parts which mate along the line 5-5 and the pins, which are of rolled spring material, serve also as locating dowels for the two parts.
Patent GB-777017-A (GB)
Title: Improvements in or relating to asphalt or mastic mixers
Inventor: EXELBY JOHN LEE
IPC: E01C19/10
Filed: 1955-10-04
Abstract: 777,017. Mixing-machines. TRINIDAD LAKE ASPHALT CO. (NORTH WESTERN), Ltd. Oct. 4, 1955, No. 28159/55. Class 86 [Also in Group XXV] A mixer for mastic products has a wall formed with a discharge opening adapted to be closed by a slidable door 14 which is moved by rotation of a screw 15, the door being supported by and between guides 12, 13. One end of the screw 15 passes through an eye 16 attached to the door 14 and carries collars 17, 18 to prevent axial movement of the screw, which is screw-threaded through a nut 20 fixed to a cross-bar 21 extending between the guides 12, 13.
Patent GB-799623-A (GB)
Title: A bracket for pivotally supporting signboards or the like
IPC: G09F7/22
Filed: 1956-09-17
Abstract: 799,623. Sliding-jaw clamps. LARGELIUS, L. G. V. Sept. 17, 1956 [Sept. 29, 1955], No. 28379/56. Class 44 [Also in Group XIV] A support for sign boards &c. comprises spaced resilient legs each secured to one of a pair of co-operating clamping members urged to clasp the sign board by the spring action of the legs. As shown, a supporting fork 1, having resilient legs 2, 3, is mounted on a carrier, such as the door of a vehicle, by a plate 7, a cross bar 5 being provided if it is desired to prevent pivotal movement of the fork relatively to the carrier. Conical pins 9, 10 are inserted, under pressure from the legs, in eyes 12, 13 secured one to each member 22, 23 of a clamp 14. The pins 9, 10 have threaded outer ends and nuts 11 and washers 15 hold the clamp in adjusted angular position relatively to the fork 1. The clamping members 22, 23 are interconnected by U-shaped links 25 the limbs of which form pivot pins on which the clamp opens when the legs 2, 3 are pressed towards each other. In modifications, the clamping members are curved or sinuous and are of any desired cross-section the mating surfaces being corrugated or grooved to receive the frame of a sign board. The ends of members 22, 23 may have bores 31 to receive arms supporting a sign in the form of an endless band and locking pins 35 adjustable by a key to press on the links 25 and retain the clamp in open or closed position.
Patent GB-637235-A (GB)
Title: Improvements relating to heat exchanging means
IPC: F28F1/14
Filed: 1946-09-24
Abstract: 637,235. Tubular heat-exchange elements. HOLDEN & BROOKE, Ltd., and SIMMONS, C. E. G. Sept. 24, 1946, No. 28532. [Class 64(iii)] In a heat exchanger; e.g. for heating or cooling sugar syrup, a shell 5 contains tubes 1 each having six longitudinal fins;, three fins 2 being Y-shaped in section and the remaining, alternate fins 3 being L- shaped in section to give the honeycomb of passages shown. The fins taper from their roots.
Patent GB-317459-A (GB)
Title: Improvements in acoustic films and in their methods of manufacture
IPC: G03B31/00
Filed: 1928-10-04
Abstract: 317,459. Soc. des Etablissements Gaumont. Aug. 15, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Combined working of sound-reproducing apparatus and kinematographs ; optical records.-A combined sound and picture film wherein the sound is recorded and reproduced by invisible emanations such as ultra-violet rays, as described in Specification 297,733, has several sound records, which may be made by different processes, spaced longitudinally thereon in relation to the pictures for reproduction by the corresponding suitable apparatus. The Figure shows a combined film passing between reels I, II, and through sound-reproducing devices A, B, and C for the different processes of recording, and a picture projector P. The displacement of the sound records along the film corresponds with the relative positions of the devices A, B, and C with respect to the projector P, and the reproducing devices may be controlled automatically from the film by notches thereon actuating contact-pieces. The arrangement is stated to be applicable for news films.
Patent GB-1002224-A (GB)
Title: Control system for vehicle e.g. helicopter
Inventor: COLLEY ROWAN HERBERT
IPC: B64C27/12
Filed: 1963-07-18
Abstract: 1,002,224. Controlling helicopters. ROLLSROYCE Ltd. July 18, 1963, No. 28558/63. Headings B7G and B7W. A control system for a helicopter rotor comprises a throttle for varying the power supplied by the engine or engines to the rotor, a collective pitch control device, and means connecting the throttle and pitch control device so that movement of the pitch control device causes movement of the throttle to maintain the rotor speed within a predetermined range. As shown, the collective pitch control device is a lever 21 pivoted at 22 and connected to a link 24 leading to the rotor head. The throttle comprises a twist grip 29 fixed to a sleeve 28 adapted to rotate a shaft 33 fixed to slotted members 34a, 34b, 34c (one for each engine), through which the engine fuel controls are operated by rods 37a, 37b, 37c. Hence, as the lever 21 is pivoted about axis 22 the link 31 is moved and the shaft 33 rotated. A second sleeve 40 is also mounted on the lever 21, and engages the sleeve 28 by dogs 70. This sleeve 40 is connected to a rotor speed governor (Fig. 5, not shown) through an hydraulic cylinder 44 which rotates the sleeve 40, and hence the sleeve 28 and the shaft 33, to vary the fuel flow as the rotor speed varies. Stops 73, 74 are provided for an arm 32 fixed to the shaft 33 to prevent the engine power exceeding or falling below predetermined limits. When these stops are reached, rotation of the sleeve 40 by the governor produces movement of the lever 21 to vary the collective pitch. The sleeve 28 may be moved axially of the lever 21,. out of engagement with the sleeve 40 to allow pilot control independent of the governor. There are also provided engine control levers 85a, 85b, 85c (Fig. 2), 35a, 35b, 35c (Fig. 4) by which rods 37a, 37b, 37c can be moved along the slots of the members 34a, 34b, 34c to limit the maximum power obtainable by movement of the throttle 28, 29. The levers 35a, 35b, 35c are interconnected so that a predetermined total power cannot be exceeded (Fig. 4). The levers 35a, 35b drive a shaft 90 through a differential drive 94-99, and the shaft 90 and the lever 35c are connected through gear teeth 101, 102 meshing with planet gears 104 mounted on a shaft 107 provided with lugs 108, 108<SP>1</SP> which may engage a movable lever 110. In this condition further forward movement of the lever 35c rotates the shaft 90 through the gearing 101-104, which, for example, provides a 2 : 1 reduction, to move the levers 35a, 35b backwards. Further forward movement of one of the levers 35a or 35b produces backward movement of the other lever through the differential drive 94- 99. An arm 113 extending from the lever 110 limits the maximum power from any one engine. To cater for engine failure, rams 120a, 120b, 120c (Fig. 2) may each be actuated automatically on failure of the corresponding engine to reduce the setting of the corresponding lever 85a, 85b, 85c and thus to increase the power of the remaining engines.
Patent GB-1194833-A (GB)
Title: Improvements in and relating to Pressure Valves
IPC: F16D31/04
Filed: 1966-06-24
Abstract: 1,194,833. Hydrostatic clutches; valves. S.R.M. HYDROMEKANIK A.B. 19 June, 1967 [24 June, 1966], No. 28563/66. Headings F2C and F2V. Automatic engagement of a hydrostatic clutch according to speed, is regulated by a number of valves devices 20. The driving member 12 carries a sun wheel 25 meshing with each driving gear 15 of a number of gear-wheel pumps which are carried by a easing 13 fast with the driven member of the gear. The valve devices 20 control return flow to the lowpressure side 17 from chambers 19 pressurized by the pumps. Each device comprises an annular valve disc 36 seating spherically or conically on a seat opening 60 from the chamber and also in spherically seated engagement with a movable cylinder 38 working on a fixed piston 40. Chamber 19 communicates with the cylinder chamber 45 through restricted passages 37, 371 whilst chamber 45 communicates in turn with a bleed return chamber 48 through ports 50 controlled by a centrifugally responsive valve 51. The chambers 45, 48 are also in communication through a pressure-responsive valve 55 loaded by an adjustable compression spring 56. The effective area of the cylinder 38 is about 65-75% that of the valve disc 36. The speed/torque characteristic. Fig. 6 (not shown), rises gently to a point A1 just above normal idling speed and under 1/3 max. engine torque, where the fluid pressure built up by closure of the centrifugal valve 51 plus a spring 39 causes rapid clutch engagement up to a point A 2  about 10% above max. engine torque. In a range A 2 -B 1 -B 2  up to 30% above max. torque the characteristic tends to fall off but is kept rising over a portion B by continued closure of the centrifugal valve 51, and beyond point B 1  opening of the valve 55 increases the fall off.