baber/WOPTO huggingface dataset:
Patent GB-459489-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/28
Filed: 1936-07-17
Abstract: 459,489. Condensers STANDARD TELEPHONES & CABLES, Ltd., 63, Aldwych, London.-(Assignees of Rodgers, K. F.) July 17, 1936, No. 19887. Convention date, Aug. 16, 1935. [Class 38 (ii)] A hollow dielectric member 15 has conducting surfaces 16, 17 inside and outside, a screwed rod 18 passing through the dielectric member, the head closing one end and making contact with the internal surface, serving also as a mounting means. The member 15 may be of quartz with silver coatings. Contact with the outer coating is made by soldering a wire 23 either directly as shown or after looping round the outer coating.
Patent GB-669737-A (GB)
Title: Gear finishing method
IPC: B23F19/06
Filed: 1948-07-26
Abstract: 669,737. Lapping gears. FELLOWS GEAR SHAPER CO. July 26, 1948 [Aug. 15, 1947], No. 19950-148. Drawings to Specification. Class 60. [Also in Group XXII] A method of finishing a gear wherein a gearlike tool is displaced relatively to the gear along a rectilinear path inclined to both the axis of the gear and of the tool comprises the following features : (a) the rate of feed is 0.011 to 0.035 inches per gear revolution in the direction of the work axis, (b) the crossed axis angle and the angle between the rectilinear path and the gear axis are such that the relative displacement of the gear or tool along said path is at least equal to one fifth of the total relative displacement of the tool or gear when such displacement is sufficient to produce backlash, and (c) the tangent of the crossed axis angle is at least equal to one fourth of the tangent of the angle between the rectilinear path and the gear axis. The latter angle, is not greater than 35 degrees, and the crossed axis angle is not greater than 15 degrees. Preferably the latter angles are 25 and 7 degrees respectively, and the rate of feed is 0.016 inches per gear revolution. The tool may be a shaving cutter, a burnishing tool or a lap.
Patent GB-464012-A (GB)
Title: Improvements in or relating to chair seats
IPC: A47C7/26
Filed: 1936-07-18
Abstract: 464,012. Seats; upholstery. POSTURE RESEARCH CORPORATION. July 18, 1936, No. 19955. Convention date, July 19, 1935. [Classes 52 (ii) and 52 (iv)] An upholstered seat has elongated ventilating spaces 12, Figs. 2 and 4, extending vertically through the seat-cushion, and a seat bottom, e.g. a metal plate 6, with holes 13 therein communicating with the spaces 12. A number of cushion elements 8 may be used, each comprising a base 9, covering 10 and padding 11, the sides being curved to provide the spaces 12 when the elements are assembled side by side. The elements 8 are attached to the seat bottom 6 by means of bolts 16, Fig. 5, passing through the bases 9, the plate 6 and into a rail 14 under the front of the seat ; they are also secured by screws passed up through the plate 6. A resilient bumper strip 21, preferably of rubber, is secured between the plate 6 and the rail 14.
Patent GB-436251-A (GB)
Title: Improvements in automatic rove stop motions for spinning and like textile frames
IPC: D01H13/18
Filed: 1934-07-07
Abstract: 436,251. Rove - stop mechanism for spinning and like frames. LOW & CO., Ltd., J. F., and HAMILL, S. M., Monifieth Foundry, Monifieth, Angus. July 7, 1934, Nos. 19973/34 and 16905/35. [Class 120 (ii)] In spinning and like textile frames a feeler 1 is adapted upon breakage of the thread below the drawing-rollers to release a pawl 7, which is thereupon displaced by the pressing- roller so that a trigger-lever 14 is released and tilts whereby the pressing-roller 11 is removed from the retaining-roller 11<1> and a rove-nipping device operated. The pawl 7 is engaged, when released, by the flutes of the roller or by a unitary ratchet wheel or the like, so that a lever 9 upon which it is mounted is turned and an abutment roller 12 or the equivalent is removed from a recess in a trigger-lever 14. In one arrangement, release of the lever 14 permits the operation of a spring-pressed or weight-operated slide and rove-gripper, and the swinging of the pressing-roller 11 about a pivot away from the retaining-roller. In the arrangement shown, the lever 14 is provided with a toothed segment 26 meshing with a corresponding segment on a lever 28, or is otherwise connected, so that, upon breakage, a toe 30 on the lever 28 nips the roving against the roller 11 and moves the roller 11 from the retaining-roller 11<1>. A recess 35 or an adjustable stop limits the movement of the roller 11 which is mounted in a swing- bracket 31 engaged by a spring-plunger 34 carried by the trigger lever 14. When the mechanism is reset the plunger 34 maintains the grip on the roving until the rollers 11, 111 re-engage. A pin 37 on the handle 22 of the lever 14 serves to tension and withdraw the roving from the drawing-rollers 5, 6 upon breakage.
Patent GB-1466578-A (GB)
Title: Method and apparatus for sorting pills
IPC: B07B13/07
Filed: 1974-05-07
Abstract: 1466578 Sorting pills HAYASHI YAKUHIN KIKAI KK 7 May 1974 19975/74 Heading B2H An apparatus for automatically sorting sugar- or otherwise-coated medicinal pills to separate faulty ones having a surface interruption, as at 1' in Fig. I, or projection, as at 1", from the remainder (1), comprises at least one pair of screw-threaded rods 2, 3 having concavely curved thread root surfaces and being mounted substantially parallel with one another for rotation in the same direction and at the same speed and with the crests of the threads of one rod being substantially opposite the crests of the threads of the other rod, Figs. 2 and 5, the rods being generally horizontal with one rod (2) at a higher level than the other (3) and the roots of the threads of one rod cooperating with those of the threads of the other rod to provide seatings; Fig. 2, for locating the pills individually and spinning them by frictional engagement, and means for rotating the rods in the direction such that the top of the lower rod 3 is moved away from the upper rod 2, Fig. 1, the rods, in operation being rotated at such a speed that faulty pills 1', 1" are thrown from their seatings and are discarded over the lower rod. The pills to be sorted are fed from a vibratory hopper 10 at an inlet end X of the apparatus, Fig. 8, on to distributors 11, Fig. 5, which guide them on to the pairs of screw rods where they seat between the roots of the threads and begin to move towards the outlet Y while rotating. A normally formed pill moves smoothly towards the outlet Y. A faulty pill cannot rotate smoothly and the speed at which the screw rods are rotated causes it to jump out of its seating in the directing arrow C and to be discarded out the lower roll 3 in the direction of arrow D. The distance between the roots of the threads of one rod and those of the adjacent rod of a pair may increase gradually in the direction of travel of the pills towards the outlet Y, preferably from an intermediate position of the length of the rods, due to a decrease in the external diameters of the rods. This permits undersize, normal and oversize pills to be recovered in ducts 12, 13 and 14 respectively as they fall between the rods, selection of the pill sizes being effected by adjustable swingable plates 15.
Patent GB-531032-A (GB)
Title: Improvements in helically welded metal pipes and in apparatus for the manufacture thereof
IPC: B21C37/12
Filed: 1939-07-10
Abstract: 531,032. Metal pipes. WILLIAMS, R. July 10, 1939, No. 20051. [Class 99 (ii)] [Also in Group XXII] A metal pipe consists of a single continuous helically coiled flat metal strip with rectangularly projecting equal-sized flanges on its edges welded together by a joint the area of which is not less than the contacting areas of adjacent flanges. In making externally ribbed pipes welding may be effected by electric resistance and in the case of internally ribbed pipes by electric arc or torch along the groove in the outer side of the pipe as shown in Fig. 2a.
Patent GB-295506-A (GB)
Title: Improvements in the production of grey to black vat dyestuffs
IPC: C09B3/34
Filed: 1927-07-28
Abstract: 295,506. Holliday & Co., Ltd., L. B., and Shaw, C. July 28, 1927. Oxidation products of dibenzanthrone which are grey to black vat dyes, essentially similar to those described in Specification 277 ,125. are prepared by oxidizing dibenzanthrone, or its low oxidation products obtained with sulphuric and nitric acids or sulphuric acid and manganese dioxide. with sulphuric acid and salt,s capable, of reacting with sulphuric acid to give unstable highly oxygenated acids or peroxides. In examples, sodium chlorate and potassium permanganate are used. When the low oxidation products are to be employed as starting materials, the two oxidation stages may be carried out in one process, without isolating the low oxidation products. The use of dichromate salts is excluded.
Patent GB-462803-A (GB)
Title: Improvements in hydraulic control mechanism for the change wheels and clutches of machine tools
IPC: B23Q5/14
Filed: 1936-07-20
Abstract: 462,803. Controlling change speed gearing. SCHOENING, H., (trading as RABOMA MASCHINENFABRIK H. SCHOENING). July 20, 1936, No. 20065. Convention date, July 19, 1935. [Class 80 (ii)] Relates to hydraulic control gear for change-speed striking- mechanism G, Fig. 1, of machine tools in which preselection is effected by adjusting a selector valve 4 which effects the changes, a main valve 2 admitting pressure oil being controlled by a control lever 11 of a main clutch 10. Movement of the clutch lever 11 from neutral opens the main valve 2 before putting the clutch 10 into operation, and keeps the valve 2 open until the drive has become effective. The clutch 10 shown is adapted to drive in two directions. When the lever 11, Fig. 1, is moved out of neutral, it completes a circuit at 12 which by a solenoid 14 opens the main valve 2 so that oil from a pump 1 is sent along a duct 3 to the preset selector valve 4. The contact at 12 is maintained while the clutch 10 is being fully engaged. In a form shown in Fig. 2, the movement of the clutch lever 11 from neutral is along a gate slot 17 until it strikes a cross-bar 16 which yields to make contact at 12<1> which opens the main valve. While the lever 11 is robated along one or other cross slot 18 to bring in one or other of the reversely-driving main clutches, 10, 10<1>, the bar 16 is held with the contact 12<1> closed so that the main valve is kept open till the drive is effective. In an arrangement described with reference to Fig. 3, not shown, the electric parts are dispensed with. In an arrangement described with reference to Figs. 4 and 5, not shown, the reversing clutch is operated by hydraulic pistons controlled by a suitable selector arrangement at the main pressure valve. The Specification as open to inspection under Sect. 91 comprises also other devices for changing speed hydraulically. In that shown in Fig. 7 (Cancelled), a gear cluster 7 is moved by a single piston 30 moving in a cylinder with four ports 28, 29, 31, 32 arranged'so that the piston moves past some of them, stopping when the pressure behind it is balanced by that in front. In the arrangement of Fig. 8 (Cancelled), a striking-lever 22 is moved into six definite positions by two pistons 26, 27, the former moving in a cylinder with two ports 28, 28<1> and the latter in a cylinder with three ports 29, 29<1>, 30. An arrangement with an accumulator is also described for maintaining the hydraulic pressure constant, the accumulator having a piston acted on by both gravity and a spring. This subject-matter does not appear in the Specification as accepted.
Patent GB-782117-A (GB)
Title: Improvements in or relating to gymnasium equipment
IPC: A63B9/00
Filed: 1954-07-08
Abstract: 782,117. Gymnastic apparatus; stage platforms. OLYMPIC GYMNASIUM CO., Ltd., and FROST, V. M. June 1, 1955 [July 8, 1954], No. 20076/54. Class 132(1) A climbing frame is formed by a rectangular box-like frame-work built up of runged members 11, 12, 13, 14 and resting on its side 14 with ladders 16, 17 and crossmembers 19, 20 detachably coupled to the vertical members 11, 13 of the frame near their upper and lower ends respectively, the ends of the cross-members being carried by stepped supports 22. A platform may be formed by removing the ladders and cross-members, laying the frame on its side, fitting the ladders inside the frame and placing boards on top. The stepped supports 22 are placed at the sides of the platform.
Patent GB-397653-A (GB)
Title: Improvements in air pre-heaters for furnaces of water tube boilers
IPC: F23M20/00
Filed: 1932-07-15
Abstract: 397,653. Regenerators. YARROW, SIR H. E., Scotstoun, Glasgow. July 15, 1932, No. 20102. [Class 51 (i).] In a water-tube boiler furnace the air for combustion is heated in horizontal tubes arranged in two or more groups traversed successively by the air arranged on either side of the boiler. As shown, groups of tubes A<1>, A<2>, B<1>, B2 are arranged in the uptakes on each side of the steam drum C. Air enters at A, B passes to one end of each group of tubes A<1>, B<1> and after passing through them enters the groups of tubes A<2>, B<2>. The gases from the furnace pass externally to the tubes and preferably in counter direction to the air. A damper F controls the passage of gases through the uptakes. The air inlets and outlets from the regenerators may be at the same end or at opposite ends of the boiler according to the number of tube groups employed.
Patent GB-1421961-A (GB)
Title: Process for the reduction of sulphur  dioxide
IPC: B01D53/50
Filed: 1973-04-27
Abstract: 1421961 Removal of sulphur dioxide from gas streams ALLIED CHEMICAL CORP 27 April 1973 [30 June 1972] 20140/73 Heading C1A Sulphur dioxide in a gas stream is catalytically reduced using a hydrocarbon reducing agent at an elevated temperature, reaction being initiated in the presence of a solid SO 2 -reduction catalyst and also of 0À05 to 3 mol per cent of elemental sulphur vapour (expressed as S s  and based on the amount of SO 2 ) that has been added to the SO 2 /hydrocarbon mixture without substantially increasing its volume, and the reaction being carried out wholly within the range 850-2400‹ F. The solid catalyst may be bauxite, alumina, silica, calcium sulphide, vanadium oxides, calcium aluminate and mixtures thereof and may be in the form of small balls or pebbles. Gaseous C 1  to C 4  hydrocarbons are preferred such as natural gas, methane, ethane, propane and the butanes. The SO 2  may be essentially pure or very dilute as in industrial waste gases. When the stream to be purified is a waste gas, the SO 2  content may be upgraded, e.g. an alkaline agent such as sodium sulphide, ammonium sulphite, a metal carbonate or magnesium oxide may be used to strip the SO 2  from the flue gas, the agent being reconstituted and the regenerated SO 2  being recovered for subsequent treatment. Another process which may be used employs a sulphur adsorber such as activated carbon to adsorb the SO 2  which is subsequently desorbed. Organic absorbing media may also be used to absorb the SO 2  which may be recovered. The product of the reduction reaction is H 2 S which is then subjected to a Claus reaction with residual SO 2  in the product stream to recover elemental sulphur.
Patent GB-1013670-A (GB)
Title: Gas fire radiant
Inventor: OATLEY ARTHUR FREDERICK
IPC: F24C15/24
Filed: 1963-07-25
Abstract: 1,013,670. Gas-fire radiants. OATLEY TECHNICAL DEVELOPMENTS Ltd. July 27, 1964 [July 25, 1963], No. 20157/65. Divided out of 1,013,669. Heading F4W. The Specification describes the gas fire claimed in Specification 1,013,669, but the claims relate only to the radiants thereof. Specification 1,013,668 also is referred to.
Patent GB-1065215-A (GB)
Title: Reduction gear device
IPC: F16H1/46
Filed: 1964-05-14
Abstract: 1,065,215. Toothed gearing. R. G. PREUX. May 14, 1964 [May 25, 1963], No. 20159/64. Heading F2Q. An epicyclic reduction gear comprises a planet pinion P1 meshing a fixed toothed annulus C1 and an internally toothed annulus C2 secured to an output shaft A1, the numbess of teeth on the annuli C1, C2 being different. A toothed wheel R1 is secured to planet pinion P1 and meshes a toothed pinion P2 on an input shaft. A plant carrier comprises members M1, M2 held together by pins B1 and screws V1, the member M1 being journalled on an extension of the output shaft A1, and the member M2 being journalled in the housing. The planet pinion P1 may comprise two connected pinions having different tooth-number and module characteristics. In a modification, the rotary elements are mounted in ball-bearings.
Patent GB-1477251-A (GB)
Title: Screening machine with removal of low specific gravity solids
IPC: D21D5/00
Filed: 1975-05-13
Abstract: 1477251 Screening machine; centrifugal separators BIRD MACHINE CO INC 13 May 1975 [30 May 1974] 20169/75 Headings BID and B2P A screening machine for slurries (e.g. of paper fibre) comprises a hollow screen 102; a pump rotor 104 through which unfiltered slurry may be circulated to cause a vortex within the rotor; and an outlet 150 which accepts material (e.g. low specific gravity solids) from the centre of the vortex, whilst leaving the remaining material of the vortex to be circulated to the hollow screen. Slurry enters the apparatus at inlet 126 and is passed between the screen 102 and rotor 104, filtrate and divided fibres pass to outlet 124. Concentrated slurry enters compartment 136, and may be withdrawn (e.g. by automatically timed openings of a valve) through outlet 138 or is recirculated through rotor (see broken arrows) thereby forming the vortex. The rotor outer face is eccentric to cause momentary flow reversals through the screen for cleaning and may have axially directed bars on that face to scrape the screen free of clogging solids. Frusto conical member 142 on rotor assists rotor pump action and adjacent frusto conical member 150 restrains air in vortex (broken line) from entering low specific gravity solids outlet 146.
Patent GB-447170-A (GB)
Title: Front end suspension for tracklaying tractors
IPC: B62D55/084
Filed: 1935-07-16
Abstract: 447,170. Endless - track vehicles. CLEVELAND TRACTOR CO., Cleveland, Ohio, U.S.A. July 16, 1935, No. 20260. Convention date, April 22. [Class 79 (i)] A front-end suspension for an endless-track tractor having a main frame 2 and track frames 5 pivoted at 6 to the rear part of the main frame comprises sockets 26 in the track frames, and balls 24. engaging the sockets and secured to compensating links 18, 20 pivoted to the main frame, so as to permit vertical movement of the front end of each track frame while preventing lateral movement thereof. According to another feature of the invention, the connections between the main frame and the track frame comprise vertically-spaced links 18, 20 pivoted to the main frame and extending laterally therefrom, the outer ends of the links being connected to the track frames through universal joints. In the construction shown, the links 18, 20 are pivoted at 14, 17 to a bracket 12 on the main frame 2, and the outer ends of the links are connected by pivots 22, 23 to one arm of a bell-crank 21, the other arm of which carries a ball 24 secured bv a bolted plate 27 in a socket 26 on the track frame 5. The arrangement is such that the ball moves up and down in a straight line relatively to the main frame. The linkage is controlled by a compression spring 33 held between a plate 28 on bracket 12 and a collar 32 on a bolt 30 pivoted at 31 to the Jinks 18. Rebound is checked by a rubber block 35 held between a fixed cup 34 and a nut on the bolt 29.
Patent GB-573351-A (GB)
Title: Improvements in and relating to pedals for cycles and the like
IPC: B62M3/08
Filed: 1943-12-03
Abstract: 573,351. Cycle pedal treads. PHILLIPS & CO., Ltd., J. A., and BOULSTRIDGE, T. J. Dec. 3, 1943, No. 20285. Addition to 531,809. [Class 136 (ii)] The end plates d and side bars e of a cycle pedal are now formed of light-gauge steel plate instead of light metal as in the parent Specification. The central riveted projection j may be disposed in the trough between adjacent tread grooves of the hard metal tread plates f or may lie on a portion of the plate which is untreaded.
Patent GB-444060-A (GB)
Title: Billiard skittle table
IPC: A63D15/00
Filed: 1935-07-08
Abstract: 444,060. Game apparatus. MASCARINI, G. L., 10, Stamford Brook Road, Hammersmith, London. July 8, 1935, No. 20295/34. [Class 132 (ii)] [See also Group XVIII] In a combined billiards and skittles game apparatus, a row of skittles a<1> is flexibly secured across the top right- and bottom left-hand corners of the playing surface A, a pivotal spring gun B at the bottom right-hand corner is limited in angular movement so that balls can only be projected indirectly therefrom at the skittles, and a coinfreed slide D is provided, actuation of which tilts the playing surface about its upper end so that balls thereon roll into a trough a<2> from where they are elevated to the gun. The playing surface A, preferably covered with green baize and surrounded by cushioned sides A<1>, A<2>, A<3>, A4 is pivoted within a glass topped casing and normally held horizontally by blocks d<4> rigid therewith resting on rollers d<3> carried by arms d<6> rigid with a shaft d<5> spring biassed to the position shown. When the coin-freed slide D is pressed in an extension d<1> thereon rocks the shaft d<5> through an arm d<2> whereupon the table tilts to allow balls thereon to roll into trough a<2>. The trough is inclined and leads the balls to a vertical cylinder b<2> on which the gun B is pivoted, the balls being raised one by one through the cylinder into the gun by a piston b<1>, spring biassed to assume the upper position shown, and reciprocated by rocking a handle C connected thereto through an arm c<1>. The skittles are bored axially to receive cords e<3> passing through holes in the surface A and connected to an arm e<2> rigid with a shaft e<5>, e<50>. Rigid with these shafts are arms e<1> connected by a link c<4>, the skittles being reset by operating a plunger E to rock the arms e<1>.
Patent GB-188049-A (GB)
Title: Improvements in or relating to the manufacture of iron alloys containing silicon
IPC: C21C7/00
Filed: 1921-07-28
Abstract: 188,049. Greiner, F. July 28, 1921. Alloys.-Iron alloys containing silicon are made by melting together briquettes or masses of ferrosilicon prepared by the process described in Specification 146,230 with the other ingredients of the alloy, such as pig iron, scrap iron, or steel.
Patent GB-771855-A (GB)
Title: Process for the production of new derivatives of 4-hydroxycoumarin
IPC: C07D493/04
Filed: 1955-07-14
Abstract: The invention comprises 4-hydroxycoumarin derivatives of the formula <FORM:0771855/IV(b)/1> wherein R represents an alkyl group containing 1 to 4 carbon atoms together with a process for their preparation by reacting a mixture of the corresponding 3-(a -nitrophenyl-b -acetyl-ethyl)-4-hydroxycoumarin and an alcohol ROH with a dehydrating agent, particularly anhydrous hydrogen chloride.  In an example, 3-[a -(41-nitrophenyl) - b  - acetyl - ethyl] - 4 - hydroxy - coumarin is refluxed in absolute methanol and dry hydrogen chloride passed into the solution where 2 - methyl - 2 - methoxy - 4 - (41 - nitro - phenyl) - 5 - oxo - dihydropyrano - [3,2 - c] - benzopyran separates and is crystallised from methyl ethyl ketone-methanol. The corresponding 31-nitrophenyl analogue is similarly prepared. Starting materials.  3 - [a  - (21 - nitrophenyl) - b  - acetyl - ethyl] - 4 - hydroxycoumarin and the 31- and 41-nitrophenyl analogues are prepared by the process described in Specification 701,111.