baber/WOPTO huggingface dataset:
Patent GB-751956-A (GB)
Title: Improvements in or relating to clutches and brakes
IPC: F16D55/26
Filed: 1952-09-22
Abstract: 751,956. Friction clutches. CROUCHER, A. H. Sept. 15 1953 [Sept. 22, 1952], No. 23744/52. Class 80(2) [Also in Group XXXIV] A single or triple-plate clutch or brake, with manual and speed-responsive automatic control, is engaged by oil pressure acting axially on bellows-sealed pistons 10 arranged in a radially inner region on a driving housing 4 and pressurized by radial pumps 9, actuated by relative rotation between input and output members 4 6 and having intakes 8a and supply reservoir 5a in a radially outer region, whilst the chambers of the clutch-actuating pistons 10 discharge into an intermediate region. The pumps are duplicated for balance, and the piston-rod 9 of each is pinned to a sheave 19 running on an eccentric 20 having three balls 21 bearing on flats on a sleeve 7 axially adjustable by a manual control collar to vary the throw from zero upwards, as described in Specification 710,581 [Group XXVI]. The pumps discharge through a ball-valve 26 and passage 5c to circular passages 5d communicating with all the clutch-actuating pistons 10 and with a clutch-control valve 15 operated manually and centrifugally to provide, on a motor-vehicle, clutch engagement from standstill to 200 r.p.m. for towed engine-start, automatic disengagement at engine idle speeds, and automatic re-engagement for normal drive above 1000 r.p.m. For this purpose the valve 15 is initially closed by a spring to maintain clutch-engaging pressure. Increase in speed beyond 200 r.p.m. causes the plunger 15 to move centrifugally outwards permitting the pressure to pass from the passages 5d past a ball-valve 15a to the reservoir 5a and thus release the clutch.. Further increase in speed beyond 1000 r.p.m. causes a second plunger 16 to move centrifugally outwards and, through a lever 17. move the plunger 15 inwards to seat the ball-valve 15a, for clutch engagement. The clutch is disengaged manually at any time by moving the eccentric-control sleeve 7 to the right, to disable the pumps, and also, through cam 13 and bar 14, to force open the release valve 15. An excess pressure relief valve is provided to limit torque, and the oil reservoir 5a has a sighting glass in its rear wall. The pump eccentric may be fixed instead of variable. The clutch or brake may be used for ratio-selection in a change-speed gear or for steering a track-laying vehicle. When used as a brake, the device will be selfacting when rotation commences after the eccentric operating member has been set.
Patent GB-256807-A (GB)
Title: Improvements in or relating to warp protector mechanism for looms
IPC: D03D51/20
Filed: 1925-09-23
Abstract: 256,807. Vereenigde Textiel-Maatschappijen Mautner, and Souczek, F. Sept. 23, 1925. Stop-motions, shuttle.-The arms, tongues, or daggers 5 on the stop rod 4 are normally retained in raised positions, and only fall into position tc engage the frog when the shuttle does not work properly. The arms are raised by means of rollers 11 on spring-controlled levers 9 pivoted on arms 8 on the lay swords 3. These levers 9 contact with fixed stops 13, but as the lay advances, move towards the swords as shown in Figs. 3 and 4. If the shuttle is properly boxed as shown in Fig. 4, it actuates a feeler 6 and 'bell-crank lever 7, which is thus turned into position to stop the movement of the corresponding lever 9 towards the sword before the lever 9 has moved sufficiently to allow the corresponding arm 5 to fall. If, as shown in Fig. 3, the shuttle does not actuate the feeler 6, the lever 9 moves so far towards the lay, as this advances, that it allows the arm 5 to drop and engage the spring loaded frog 2. Arms 5 at each side of the bar are fixed to the shaft 4 and they as well as the parts 6, are spring controlled.
Patent GB-1138484-A (GB)
Title: Improved petroleum jelly
IPC: C10G73/40
Filed: 1966-05-27
Abstract: 1,138,484. Packaging petrolatum. JOHNSON & JOHNSON. 27 May, 1966 [2 June, 1965], No. 23815/66. Heading B8C. [Also in Division C5] The formation of void spaces adjacent the walls of containers filled with petrolatum is avoided by using petrolatum having dispersed therein at least ¢ wt. per cent of a gas, e.g. nitrogen. The containers are heated to a temperature at or slightly above the melting point of the petrolatum, and filled with petrolatum at a temperature between its congealing point and its melting point. Glass containers are preferred.
Patent GB-171751-A (GB)
Title: Process for the recovery of pure caustic alkalis from impure lyes
IPC: C01D1/40
Filed: 1920-08-14
Abstract: 171,751. Heinemann, K., and Hoesch & Co. Aug. 14, 1920. Amalgams, alkalis, hydrogen, and oxygen, obtaining.-Pure hydrogen, oxygen, and caustic alkalis are obtained from impure lyes by electrolysis with a mercury cathode and subsequent action of water on the amalgam formed. To prevent contamination of the oxygen produced at the anode by hydrogen, a porous diaphragm, for example, is provided, through which the electrolyte flows from the anode to the cathode. A platinum, nickel or silver anode may be used.
Patent GB-452684-A (GB)
Title: A cooling device for oil
IPC: F28F19/00
Filed: 1935-08-26
Abstract: 452,684. Cooling oil. HOLM, G. L. C., 57, Mariendalsvej, and KJAER, V. A., 10, Ellinorsvej, both in Copenhagen. Aug. 26,1935, No. 23850. [Class 29] Apparatus for cooling viscous oils comprises hollow-walled members 1, 2, 3 bolted together to form communicating oil chambers having scraping devices 7 consisting of arms carrying scrapers 8, Fig. 4, and mounted on a rotary hollow shaft 6. Cooling fluid enters the member 2 through the port 4 and, after circulating through the hollow walls of the members, leaves the apparatus through a port 5 in the member 3. The oil passes into the chambers through a port 14 in the member 3, and cooled oil is removed from the walls of the chambers by the scrapers and passes into the spaces 10 thereof and thence through ducts 11 into the hollow shaft which discharges the oil through a port 12 in the member 2. In a modification, the apparatus comprises a member 15, Fig. 5, having cylindrical coaxial walls forming alternate annular spaces for the cooling fluid and the oil and inlet and outlet ports 16, 17 for the cooling fluid, a hollow cross-bar 19 carrying the scrapers 18 and mounted on a rotary shaft 24, and a cover 20 having an oil inlet port 21 and an outlet port 23 through which cooled oil directed by the scrapers into the cross-bar is discharged.
Patent GB-478974-A (GB)
Title: Improvements in or relating to friction facings having portions which are subjected to relatively great wear
IPC: F16D69/02
Filed: 1936-09-01
Abstract: 478,974. Friction elements; compound sheet materials. STEVENS, A. H. (Raybestos Co.) Sept. 1, 1936, No. 23931. Drawings to Specification. [Class 140] A friction element for clutches comprises a body of woven or braided asbestos treated with a friction augmenting agent in which part of the body contains also a hardened binder such as condensation products of phenols or cresols with aldehydes such as formaldehyde or acetaldehyde, or proteins such as casein hardened with formaldehyde. In making splined elements of the kind described in Specification 244,325, [Class 80 (ii)], sheets of woven or braided asbestos-covered wire are frictioned with rubber composition, the whole or only those portions from which the splines are to be cut is saturated with a phenolformaldehyde resin, and the sheets are plied, cured in a mould and cut to form the splines. The asbestos-covered wire strands in each ply are. preferably disposed fanwise, e.g. at an angle less than 90‹, in relation to the strands of adjacent plies.
Patent GB-1299135-A (GB)
Title: Cyclamate-free calorie-free-sweetener
IPC: A23L27/30
Filed: 1971-04-19
Abstract: 1299135 Sweetener CUMBERLAND PACKING CORP 19 April 1971 24049/71 Heading A2B A sweetening composition comprises by weight 1 part saccharin sweetener; 3-15 parts glucono delta lactone; 2-10 parts sodium or potassium gluconate; #-5 parts cream of tartar.
Patent GB-1431489-A (GB)
Title: Double nut pre-loadable screw mechanism
IPC: F16H25/22
Filed: 1973-05-21
Abstract: 1431489 Screw-and-nut gearing CSEPELI SZEKSZAMGEPGYAR 21 May 1973 [13 July 1972] 24054/73 Heading F2Q In a ball screw mechanism comprising preloadable nuts 3, 8 non-rotatably mounted in a housing sleeve 5, the nuts 3, 8 may be interchanged or turned so that the longitudinal axis of each nut is reversed in order to permit the sides of the nut thread profiles which were originally loaded to be unloaded and the originally unloaded profiles to be loaded. The nut 8 is provided with a keyway which houses a key 7 which prevents rotation of the nut 8 and the nut 3 is pre-loaded by the engagement of teeth with a ring 4 which is externally and internally toothed and engages internal teeth on a ring 2 secured to the sleeve 5. In a modification, both ends of a nut 17, Fig. 3, are provided with teeth or knurled portions. Similar teeth are provided on a pressure ring 12, and a deformable ring 13 is located between the ring 12 and adjacent end of the nut 17. The ring 13 may be of plastics material or copper. In snother modification, a ring 23, Fig. 5, is secured to a sleeve 22 and has internal teeth which engage a toothed end portion of a nut 27. In the construction shown in Fig. 7, a nut 31 is non- rotatably connected to a disc 32 by a pin 37, and a nut 35 is coupled to the disc 32 by means of an internally and externally toothed ring 36. Fig. 9 shows a construction in which nuts 42, 45 are spaced by a distance-piece 44 which determines the amount of pre-load, and both ends of both nuts are provided with keyways which are adapted to accommodate a key 46 which is held in position by a spring 43.
Patent GB-1167686-A (GB)
Title: Classifying System
IPC: B07B4/02
Filed: 1968-05-21
Abstract: 1,167,686. Centrifugal classifiers. AIR SIFTERS Inc. 21 May, 1968, No. 24228/68. Heading B2P. A classifying apparatus comprises a vertical chamber 15-17, Fig. 4, having a pair of opposed air inlets 65, 66 adjacent its bottom and an outlet 19 in its top 18, a bladed rotary particle selector 26 coaxial with the outlet 18, a fan 58, Fig. 1, for drawing air in through the inlets 65, 66, up the chamber, through the particle selector 26 and out of the outlet 19, thus establishing a rotary and rising column of air, a pair of conduits 50, 51 opening into the top of the chamber outwardly of the periphery of the particle selector 26, and a feeder 52, 53 for supplying finely divided material to be classified to the conduits 50, 51 for discharge directly into the rotating column of air. The classifier 11 is mounted in a frame 37 on opposite sides of which are mounted motors 46, 47 which via belts 48, 49 and pulley 25, drive the shaft 22 of the selector 26. In operation, the centrifugal force imparted by the selector 26 overcomes the air drag on the large particles which are thrown out against the wall of the chamber and removed through the outlet cam 17. The fine particles entrained with the air overcome the centrifugal effect of the selector 26 and pass through the latter with the air towards the outlet 19 and the fan 58. The fan directs the air and light particles through conduits 59, 60 to centrifugal separators 12, 13 in which the light particles are separated out and from which air is removed via conduits 62, 63 and recirculated to the air inlets 65, 66. Excess air may be removed from the separators 12, 13 via conduits 67, 68 and passed through a bag filter 14 for removal of fines before escape to the atmosphere. Leakage of large particles between the top 18 of the classifier housing and the top of the selector is prevented by means of a labyrinth seal 32-34 to which air is supplied via a passage 36 either from the atmosphere or, as shown, from the conduit 63 via a pipe 71 and a passage 36.
Patent GB-273537-A (GB)
Title: Improvements in or relating to the use and application of cork material for floor and like coverings
IPC: E04F15/10
Filed: 1926-10-01
Abstract: 273,537. Elbo, J. Oct. 1, 1926. Flooring slabs; special materials for slabs. - Par quetry floor and like cover ings consist of square or oblong pieces of cork material such as cork linoleum formed with tongues b and grooves c to interlock, and polished before laying. The tongues and grooves may be so positioned that the material is thicker on the outer face a.
Patent GB-1307411-A (GB)
Title: Footwear
IPC: A43B7/36
Filed: 1970-05-20
Abstract: 1307411 Boots &c R MAGUIN-POUJOL 20 May 1970 [23 May 1969] 24386/70 Heading A3B A device for conducting electrostatic charges on the human body to earth consists of electrically conducting members adapted to be fitted to an article of footwear so as to contact the tread and the inner surface of the sole and an electrically conducting clip adapted to be fitted to a part of the article of footwear, said clip being connected in an electrically conducting manner to said members. As described a wire 8 extends from the inner surface of the sole and is attached to a clip 9 which is connected to a metal disc 11 on the tread by a chain 10. The chain 10 may be secured to the heel by nails 12. In order to improve contact between the foot and the wire 8 a conductive plate 13 having spikes 14 may be worn inside a sock or stocking, the spikes 14 penetrating the sock or stocking to make contact with the wire 8.
Patent GB-754401-A (GB)
Title: Improvements in tyre curing bladders
IPC: B29C43/36
Filed: 1954-08-23
Abstract: 754,401. Tyre curing bags. GOODYEAR TIRE & RUBBER CO. Aug. 23, 1954 [March 2, 1954], No. 24441/54. Class 87(2) A tyre curing bag 15 has surface grooves 26 to vent air that would otherwise be trapped between the raw tyre carcase 23 being moulded and the curing bag, these grooves being in a generally helical direction from the end 25 towards the centre 24. Widening of the grooves due to circumferential stretching of the bag is thus progressively compensated for, whereby excessive flattening does not block the venting passage. Fig. 4 shows the bag unexpanded, when it is cylindrical in shape, and Fig. 8 shows it in the inflated condition. The angle of inclination 27 of the helix decreases in inverse ratio to the ratio of circumferential to radial stretch at successive points along the groove. As shown, there are a number of grooves 26, each ending in a sector A, B, C, &c. representing 60 degrees of circumference at a point 29 displaced from the centre line 24 of the curing bag. In the press shown in Fig. 2 the edges of the bag are clamped to circular heads 16, 17 which are both raised in the press-open position by piston members 19, 21. As the press closes the piston members 19, 21 retract to seat the head 16 on the lower mould half and to lower the head 17 to meet it, fluid pressure being admitted to the inside of the bag at the same time.
Patent GB-1040124-A (GB)
Title: Purification of acrylonitrile
Inventor: HIGGINS THOMAS DOUGHERTY
Filed: 1964-06-12
Abstract: Contaminants comprising carbonyl compounds are removed from acrylonitrile by contacting acrylonitrile containing said carbonyl compounds and not more than 0.2% by weight of water with activated alumina.  It is preferred to use 50-200 g. activated alumina per gram of total carbonyl impurities.  The treatment may be effected slurrying the alumina with the nitrile or by passing the nitrile through columns packed with activated alumina. Examples are provided.
Patent GB-1414400-A (GB)
Title: Method for making a silicon electron emitter
IPC: H01J1/34
Filed: 1973-05-23
Abstract: 1414400 Cathode materials and processing RCA CORPORATION 23 May 1973 [2 June 1972] 24533/73 Heading H1D A negative effective electron affinity electron emitter is formed by heating a P-type Si body in vacuum at 1100-1420‹ C., applying a work function reducing material, reheating at a lower temperature and applying further said material. The method avoids cleaning Si by sputtering and subsequent annealing. A Si reflecting photocathode is prepared by mounting a P-type monocrystalline Si disc 14 in a discharge tube envelope from which extends an exhaust tube 22 including containers 26, 28 with material which releases Cs and O when heated. The envelope is degassed by baking and the disc heated by current through leads 21 to 1300‹ C. for 3 seconds. On cooling Cs is released until photoemission passes a maximum, then O 2  is released until photoemission reaches a maximum. The heating and sensitizing may be repeated. The cathode is heated to 1000‹ C. for 3 seconds and on cooling sensitized with Cs and O. These heating and sensitizing steps may be repeated until the desired photosensitivity is achieved. The Cs may be replaced by Rb. The method is used for secondary emissive dynodes and P-N cold cathodes.
Patent GB-308180-A (GB)
Title: Improved process of rendering iron and steel rustless
IPC: C23C10/34
Filed: 1927-09-19
Abstract: 308,180. Coles, S. O. Cowper-, Taylor, L., Gould, A. A., and' Lucas, P. G. Sept. 19, 1927. Coating.-In a sherardizing process, the treating mixture is introduced into a receptacle containing the articles to be treated and is withdrawn before the coated articles are removed, the mixture being heated to the required temperature before it enters or after it leaves the receptacle. The articles are contained in a rotating perforated drum 1 and the mixture from a conduit 2 mounted in a casing 4 provided with an electric or other heater 3. The heated mixture passes through the drum 1 and leaves the casing 4 by a conduit 5 provided with a heating device 6 and opening into a casing 9 provided with an elevator 10 which returns the mixture to the conduit 2. The rate of flow of the material through the casing 4 is regulated by shutters 7, 8. In a modification, the mixture is fed along an horizontal portion of the conduit 2 by a worm and the heating device is arranged externally of the conduit. In another modification, Fig. 4, the mixture is contained in a chamber 22 which is mounted on a hollow spindle 23 supported in bearings 21 mounted on trunnions 24 being rotated by a driving chain passing over a sprocket 25. The chamber is provided with an aperture 27 adapted to be closed by a conical shutter 28 fitted to a spindle 29 passing through the spindle 23 and provided with a handle 30. The sherardizing mixture is introduced into the container 22 which is turned into the horizontal and is then heated. When the mixture has reached the desired temperature, the container 22 is turned about the trunnions 24 into the position shown and is secured by clamps 33 to a chamber 32 having a shutter 35 to hold the articles therein. The shutter 28 is then withdrawn allowing the mixture to fall into the chamber 32 which with the chamber 22 is then rotated by the spindle 23. After the operation has been completed, the whole apparatus is turned upside down and the mixture returns to the chamber 22, the treated articles being retained by the shutter 35 in the chamber 32. Specification 143,674 is referred to.
Patent GB-480368-A (GB)
Title: Improved fruit grading machine
IPC: B07B13/00
Filed: 1937-07-28
Abstract: 480,368. Sorting fruit. GEORGE, H. July 28, 1937, No. 24575/36. [Class 117] Apparatus for grading apples, tomatoes, &c. comprises a rotating cylinder a having on its surface a helical groove of graduated depth and width coacting with a bar e to provide a grading slot of graduated width and depth along which the fruit is traversed by engagement with the ribs forming the sides of the groove, until it reaches a part of the slot through which it can fall on to a shoot f or travelling band which conveys it to the appropriate collecting receptacle j. The fruit is fed singly to the small end of the slot by a lifting device k which lifts it from a hopper h and allows it to roll over the bar. The device k is actuated through a bell-crank lever from an eccentric b on the cylinder shaft, Discs d mounted on transverse shafts are disposed in the groove and are turned by engagement with the helical rib to prevent the fruit over-riding the cylinder. The shaft of the cylinder has a handle c for manual and a pulley g for power operation.
Patent GB-262218-A (GB)
Title: Improvements in or relating to ratchet mechanism
IPC: B25B13/46
Filed: 1925-10-05
Abstract: 262,218. Lee, W. R. Oct. 5, 1925. Holders for sliding windows.-In ratchet holding-devices such as applied to window-sash holders &c., the ratchet-surface is divided into two parallel or concentric channels or courses connected by inclined passages and the pawl member is laterally tiltable or slidable so that by appropriate relative movements of the co-operating members the pawl may be shunted from one track or course into the other. One track is formed with ratchet teeth whilst the other may be formed with oppositely directed ratchet teeth or with a stepped or plain return channel according to the purpose to which the device is applied. In the application to a window sash a spring-pressed pin in the window frame engages a ratchet track B, Fig. 9, and is shunted into a plain return track A when the sash is raised to its full weight so that the pawl member slips over the step 24b at the lower end of the track; the pins ride up a slope at the upper end of the track A and over a step 33 to return to the ratchet track B when the sash is closed. Fig. 8 shows an alternative construction which permits of the sash being lowered at intermediate points in its upward travel. A number of inclined channels connect the two courses, one of which is stepped.
Patent GB-1145230-A (GB)
Title: Fused refractory castings
Inventor: ALPER ALLEN MYRON
IPC: C04B35/56
Filed: 1967-05-30
Abstract: 1,145,230. Fused cast refractory. CORNING GLASS WORKS. 9 Aug., 1967 [30 May, 1967], No. 24848/67. Addition to 1,117,108. Heading C1J. A fused refractory casting is the same as in claim 1 of Specification 1,117,108, except that the free carbon content is more than 35% by weight, and preferably more than 40% by weight. Two examples are described. In one, a mix comprising 50% b.w. titanium and 50% b.w. carbon is fused in an electric induction furnace to produce a casting comprising 54À1% b.w. TiC and 45À9% b.w. graphite. In the other, 40% b.w. chromium and 60% b.w. carbon black produced a casting comprising 40% b.w. graphite and Cr 3 C 2  and Cr 7 C 3 . Reference has been directed by the Comptroller to Specification 1,117,108.
Patent GB-518521-A (GB)
Title: Improvements in or relating to guards for protection against flying debris, shrapneland the like
IPC: B60J1/20
Filed: 1938-08-24
Abstract: 518,521. Safety guards for vehicles; window. and like guards. GRAVELEY, A. J. G. Aug. 24, 1938, Nos: 24857/38 and 4204/39. [Class 103 (iv)] [Also in Group X]. A flexible guard for protecting vehicles and other objects from flying debris, shrapnel &c. comprises a number of metal slats or strips 2, 3 connected together by a series of flexible chains 1 having interconnected links.' Thus, for the protection of a motor-car two guards may be draped over the sides of the vehicle, a third guard over the roof and windscreen and, if desired, a fourth guard over the bonnet. As shown the elements 1 are constituted by chains, each link of which is in the form of. a U with the limbs closed together and slotted for the passage of the strips 2, 3 while the closed portion forms an eye engaging the slots of the adjacent link. Two or more strips 2, 3 may be passed through each set of aligned slots, and the ends 4,5 of the strips are bent over to secure the chains and strips together; or, in places, the strips may be omitted altogether, e.g., to' provide a vision opening in conjunction with a windscreen. Instead 'of being flat the strips may be bent to suit the contour of any object to which they are fitted.