baber/WOPTO huggingface dataset:
Patent GB-836858-A (GB)
Title: Material exchange apparatus and methods of operating such apparatus
IPC: B01D3/26
Filed: 1958-06-16
Abstract: In fractional distillation of the type comprising vertical parallel tubes in each of which upwardly flowing vapour and downwardly flowing liquid are contacted and an individual throttling member for each tube for the throttled discharge of desired vapour, there is provided a shut-off valve for each throttling member, the cross-sectional area of the valve opening being at least equal to that of the throttling member.  In Fig. 4, the tubes 1 contain filler bodies 19 where countercurrent contact of vapour and liquid takes place.  The bottoms of the tubes, in the enclosed space 4, are heated by steam.  Liquid <PICT:0836858/III/1> <PICT:0836858/III/2> vaporized in the tubes is withdrawn by throttling members 7 into a common discharge chamber 18 and thence via shut-off valve 35 and condenser 36 to collecting vessel 37.  Each tube has associated with it a valve 11 which may be spring loaded (Figs. 1 and 2, not shown).  The valves are all actuated jointly by the plate 15 moved by compressed air, or atmospheric air if the pressure in the tubes is subatmospheric, in the bellows 26.  In an alternative embodiment shown in Fig. 3, the throttling member is provided by the gap 23 between the valve and valve seat.  In operation, after a period of withdrawal of product, the main valve 35 is closed first and the pressures in the tubes and the chamber 18 allowed to equalize.  The valves 11 are then closed by introducing pressure in the bellows.  Closing the throttling members thus prevents material passing between the tubes and so upsetting the equilibrium.  The valves may be actuated automatically on a time basis, the actuating device being controlled, if desired, according to variations in the nature of the product, e.g. a density measuring device in the product collecting chamber may be used to vary the length of time of opening the valves.
Patent GB-903115-A (GB)
Title: Improvements in or relating to window constructions
IPC: B60J10/02
Filed: 1961-05-29
Abstract: 903,115. Window construction. FORD MOTOR CO. Ltd. May 29, 1961 [June 24, 1960], No. 19244/61. Class 20 (3). A window construction particularly for vehicles comprises a frame with an inwardly extending wall section 29 and a flange 31, 32 extending from the wall section into the window opening, a formed member 34 with a first channel 37 which receives the edge of window 15 and a second channel 36 and a resilient sealing member 16 interposed between the formed member and the wall section which is rebated to receive the first channel 37 and grooved 22, 19 to receive a wall 38 of the second channel and the flange 31, 32. The formed member may be provided with an extension, Fig. 3 (not shown), which extends inwardly at an angle to wall 38 and is secured to the frame structure. The arrangement provides a minimum offset between the plane of the window and the outer surface 11 of the vehicle.
Patent GB-369490-A (GB)
Title: Improvements in or relating to the purification of distillation gases and apparatus therefor
IPC: C10K1/22
Filed: 1931-07-03
Abstract: 369,490. Gas purifiers. BEUTHNER, K., 124, St. T÷niserstrasse, Krefeld, Germany. July 3, 1931, No. 19279. [Class 55 (ii).] A dry purifying tower for removing sulphuretted hydrogen and hydrocyanic acid from gases, in which the purifying mass is circulated from top to bottom of the tower, is combined with a grinding and centrifuging mill which breaks up the purifying material obta'ned from the bottom of the tower and projects it into the top of the tower for recirculation. A whirling stream of gas from an inlet 1 is mixed with the purifying material from a mill 5 in a tube 6, the mixture being then deflected into the purifier so that the purifying mass falls on the first of a number of gratings 8. When the latter are all filled an indicator 12 operates a motor 13 which through intermediate gearing rotates the supports of the bottom grating through 90‹ thus discharging its layer of material. These supports are then returned to the horizontal to be followed by the opening of the superimposed grating and so on up to the top grating. Uniform layers of material are ensured by levelling arms driven on an axle 10. The purifying material passes to an intermediate container 23 from which uniform quantities are projected into the conveyer 27 to be ground in the mill 5 before being recirculated in the tower. The purified gas leaves the tower at 20.
Patent GB-1493094-A (GB)
Title: Article handling system
IPC: G05B19/401
Filed: 1976-05-11
Abstract: 1493094 Photo-electric position sensing INTERNATIONAL BUSINESS MACHINES CORP 11 May 1976 [27 June 1975] 19334/76 Heading G1 [Also in Division G3] A control system zero positions an X, Y table 11 supporting an article, e.g. a silicon wafer 16 for use in semi-conductor device manufacture. The table is driven in mutually perpendicular directions by digital stepping motors 12, 14 and wafer 16 on holder 18 is to be positioned under stationary fibre optic test probe 17. Zero sensors 20, 22 sense, detect or define zero (i.e. reference) positions. Handle 38 controls movable studs 32, 34 which coact with fixed stud 30 to clamp the wafer atop the holder, it being also possible to hold it down by vacuum pressure. The sensors 20, 22 each include two light emitting diodes opposite two photo-transistors, the edge of plates 40 passing between them to define tracks A, B aligned with the phototransistors (Fig. 3). When plate 40 is in a positive position, track A blocks any light from one photodiode while track B allows light to pass from the other photo-diode to be received by the other photo-transistor. The photo-transistor outputs are compared by a differential comparator to determine the position and control the approach to a zero position Fig. 6 (not shown). The initial position command originates from a data processor connected to the motor controls and sensors Fig. 5 (not shown).
Patent GB-946438-A (GB)
Title: Improvements in photoelectric diaphragm control devices
IPC: G03B7/12
Filed: 1960-06-01
Abstract: 946,438. Photo-electric exposure control. P.GROSSEN & CO. G.m.b.H. June 1,1960 [June 2, 1959], No. 19378/60. Heading G2A. The pointer of an exposure meter in a camera arrests a cam plate which in turn arrests a scanning pointer controlling the position of an aperture setting ring. When the camera release 32, Fig. 1, is pressed, the plate 27 moves until its edge 27a engages the pointer of an exposure meter 2. Further pressing results in compression of the weak spring 38 and the rotation of a lever 18 to free a pawl 16 which is rotated by a spring 17. Pawl 16 is connected through gears 12, 14 to the scanning pointer 13 which rotates freely about a shaft 3 until engaging edge 27a. Further movement of the release actuates a lever 22 to free the ring 20 which rotates until the racket 24 engages pawl 16. The angular position of meter 2 is adjusted through shaft 3 in accordance with exposure time and film sensitivity set on rings 11 and 6 respectively. In a modification, Fig. 4, the release 32 is perpendicular to the lens axis and the ring 52 is directly coupled to pointer 13 through bevel gears 49, 50. When ring 52 stops, a ring 51 continues to rotate under the action of a spring 64 until the lug 53 releases the shutter.
Patent GB-1218678-A (GB)
Title: A reagent for forming an insulating coating on the surface of electrical steel sheets
IPC: H01F1/147
Filed: 1969-04-16
Abstract: 1,218,678. Modifying steel surfaces. KAWASAKI SEITETSU K.K. April 16, 1969 [Oct.28, 1968], No.19527/69. Heading C7U. A silicon steel sheet for use in transformers is formed with an insulating coating by contacting with an aqueous solution consisting of (parts by weight) 100 monobasic magnesium phosphate, 5 to 30 chromic anhydride, and 0À4 to 2À1 based on aluminium of aluminium nitrate or amorphous aluminium hydroxide. The solution may also contain a surface active agent and colloidal silica or mica. The coating may be baked at 300 to 600‹C. The steel sheet may first be provided with a nitreous coating of e. g. MgO-SiO 2 .
Patent GB-689443-A (GB)
Title: An apparatus for releasing and extracting ingots from their moulds
IPC: B66C1/44
Filed: 1951-08-20
Abstract: 689,443. Extracting castings. BOENNHOFF, H. Aug. 20, 1951, No. 19544/51. Class 83 (i). A device for extracting ingots comprises grab mechanism and thrust members which, when the grab is lifted, exert a downward thrust directly dependent upon the lift. Links 3, 4 pivoted to an eye 1 by which the device is lifted, carry crossed links 7, 8 and these in turn angular links which, in known manner, cause the grab jaws 13, 14 to grip the projection 16 when the device is lifted. The links 7, 8 are extended to carry thrust members 19, 20, guided by lugs 22, 24, which press down on the top of the mould 21 at the same time. A device, not shown, is used to hold the jaws 13, 14 open when required.
Patent GB-271291-A (GB)
Title: Improvements in or relating to kilns
IPC: C04B11/036
Filed: 1926-08-07
Abstract: 271,291. Johnson, E. L. Aug. 7, 1926. Shaft kilns. - A diametricallyarranged fire-box b, having a solid fuel grate b<1>, is fitted at the base of a shaft kiln for burning gypsum &c., and the communicating pas. sages b<3> between the fire-box and the kiln are shaped to prevent any part of the charge from passing into the fire - box. The kiln is of cir. cular cross-section and tapers upwards.
Patent GB-621219-A (GB)
Title: Production of alpha-haloacrylic compounds
IPC: C07C69/653
Filed: 1946-07-01
Abstract: Esters of a -halogenacrylic acids are obtained by treating esters of a ,a - or a ,b -dihalogenpropionic acids with an alkaline reagent dissolved in water containing at least 10 per cent by weight of a water-miscible organic solvent.  Specified alkaline reagents are the hydroxides, carbonates or bicarbonates of sodium, potassium, calcium or magnesium or alkali (including ammonium) or alkaline-earth carboxylates, e.g. acetates, tartrates, lactates, citrates, benzoates, o-methylolbenzoates, salicylates, naphthalates, phthalates, malonates. maleates, chloroacetates, oxalates or fumarates.  Specified organic solvents are methyl, ethyl, propyl and butyl alcohols, ethylene glycol and its monomethyl, monoethyl, propyl and butyl ethers and monoacetate, glycerine and its monoethyl ether, mono- and di-acetin, and acetone.  The reaction mixture may include a small proportion of a polymerization-inhibitor, e.g. hydroquinone, sulphur or phenylene diamine.  Examples are given in which: (1) methyl a ,b -dichloropropionate is heated with aqueous sodium acetate containing isopropyl alcohol to yield methyl a -chloracrylate; (2) cyclohexyl a ,b -dichloropropionate yields cyclohexyl a -chloroacrylate when heated with aqueous sodium acetate containing ethylene glycol monomethyl ether and a little hydroquinone; (3) isopropyl a ,b -dichloropropionate is heated with aqueous soda solution containing glycerine and a little hydroquinone to yield isopropyl a -chloracrylate; (4) allyl a -chloracrylate is obtained from allyl a ,b -dichloropropionate by a process similar to that of example 2.  Other esters stated to be obtainable are a -chloroacrylic ethyl, propyl, butyl, amyl, isoamyl, n-hexyl, octyl, lauryl, octadecyl, b -chlorethyl, methallyl, crotyl, oleyl, chlorallyl, phenyl, cresyl, resorcinyl, naphthyl, benzyl, fenchyl, cyclohexyl and furfuryl esters, and also esters of a -chloroacrylic acid with polyhydric alcohols such as glycol, glycerol, sorbitol and mannitol. Specifications 536,806, 618,965 and U.S.A Specification 2,245,547 are referred to.
Patent GB-1413558-A (GB)
Title: Lost motion devices mechanically linked to vehicle levelling  systems
IPC: B60G17/04
Filed: 1973-04-25
Abstract: 1413558 Lost motion couplings GIRLING Ltd 8 April 1974 [25 April 1973] 19655/73 Heading F2U  A lost motion device mechanically linked to a levelling system of a vehicle having a sprung part and an unsprung part comprises a prestressed coil torsion spring 14 whose ends extend laterally from the coil to engage projecting pins 8, 12 fast with an input member 1 and an output member 4 respectively, the input member being movable in response to relative movement of the vehicle parts, and the torque applied to the spring in either direction from non-transient movement of the input member relative to a valve actuating member 3 of the levelling system being transmitted through the spring and output member to the actuating member. As shown, the input member 1 on an unsprung part is secured to a bearing 2 and carries a pin 8 while the output member 4 on the sprung part carries a pin 12 and is secured to the valve actuating member 3 by a pin 6. The levelling valve may have a damping device in which an orifice restricts flow of fluid in the vehicle suspension system. In operation, when the vehicle loading is increased non-transiently (e.g. due to baggage), the input member 1 rotates relative to the actuating member 3 and the movement is transmitted through the spring after the preloading of the spring is overcome to rotate the output member 4 and valve actuating member 3 smoothly. When a sudden transient movement of one of the vehicle parts occurs (e.g. due to the vehicle riding over a bump) a sudden increase in torque is applied to the spring and the damping device in the levelling valve tends to absorb the energy and thereby prevent sudden movement of the output member 4 and consequent operation of the levelling valve.
Patent GB-895692-A (GB)
Title: Improvements in and relating to bottle closures
IPC: B65D47/24
Filed: 1959-06-09
Abstract: 895,692. Stoppers. COCCHI, E. June 9, 1959, No. 19760/59. Class 125(3). A closure for a bottle comprises a bush 3, fixed by a metal clamping ring 4 to the bottle neck, and a stopper 8 which may be lowered by rotating a disc 10 fast with the stopper 8 against the action of a spring 14 in order to form a seal against an apertured flange member 2. A hub 11 integral with the bush 3 has inclined surfaces 12 coacting with projections 13 on a shank 9 connecting the disc and the stopper to lock the stopper in its sealing position. A sealing ring 16 on the disc 10 presses on the member 2 in the closed position of the stopper. A removable metal sleeve, Fig. 1 (not shown), having means for attaching a guarantee seal, is held down round the bush 3 by flange members which engage under the ring 4. Ribs 18 guide the stopper to and from its sealing position. A polythene washer, Fig. 10 (not shown), may replace the spring 14, and the stopper 8 may be conical as shown or, alternatively, hemi-spherical or flat, Figs. 8 and 9 respectively (not shown).
Patent GB-705815-A (GB)
Title: Improvements in or relating to ball valve faucet assemblies
IPC: F16K1/14
Filed: 1952-08-06
Abstract: 705,815. Valves, connecting to spindles. EDLUND, J. L. Aug. 6, 1952, No. 19812/52. Class 135 In a valve in which a ball closure member 2 is so held in a cup formed in the end of the operating stem that it can rotate about an axis in alignment with the axis of the stem, a frictionreducing cap 1 is fixed to the ball by a stem 7 and is located between the ball and the cup in the stem. The stem 7 may be pointed or serrated, and square or round in cross section, and the cap may be hollow, as shown, or consist of a solid segment. The ball is formed with a projection 5 which rides in a groove in the stem, or a groove in lieu of the projection 5 is engaged by an inwardly directed lip on the stem.
Patent GB-662380-A (GB)
Title: Telephone set
IPC: H04M1/08
Filed: 1949-07-29
Abstract: 662,380. Sets. STANDARD TELEPHONES & CABLES, Ltd. July 29, 1949 [Nov. 13, 1948], No. 19943/49. Class 40 (iv). In a telephone subset the cradle switch is actuated by means of a sphere 4 located in the cradle. In Fig. 2 the sphere 4 is shown secured in a flexible membrane 5 which is attached by a frame 7 to the top of the housing and manners in which the sphere may be secured are described with reference to Figs. 5-9 (not shown). Further embodiments (not shown) include transmission means between the sphere and the switch and in a still further embodiment, Fig. 13, the ball 52 is located against lateral movement by the walls of a cylinder 53 which has also an inner flange at the bottom to prevent excessive downward movement. In this embodiment the switch 56 is actuated by the action of the ball 52 on the spring lever 54.
Patent GB-1303908-A (GB)
IPC: C08F14/06
Filed: 1971-06-09
Abstract: 1303908 Controlling vinyl chloride polymerization SHINETSU CHEMICAL CO 10 June 1971 [11 June 1970] 19972/71 Heading C3P The rate at which vinyl chloride polymerizes in aqueous suspension in the presence of a catalyst and either a suspending agent or a dispersing agent is controlled by condensing gaseous monomer issuing from the polymerization medium while concurrently adding a polymerization inhibitor to the medium, whereby the condensed monomer absorbs the inhibitor, the condensed monomer and inhibitor are absorbed by suspending particles, and then the absorbed monomer vaporizes thereby agitating the medium and ensuring that the inhibitor is uniformly distributed throughout the medium. The agitation of the medium may be enhanced by introduction of an inert gas, e.g. nitrogen. The process is used to rapidly reduce the rate of polymerization in emergency, e.g. loss of electrical power. Suitable components of the reaction are:-suspending agents: partially saponified polyvinyl acetate, cellulose ether or gelatine; dispersing agents: CaCO 3 , MgCO 3 , BaSO 4 , Al 2 O 3  or TiO 2 ; catalysts: lauroyl peroxide, benzoyl peroxide, isopropyl peroxydicarbonate, acetyl cyclohexylsulphonyl peroxide, azobisisobutyronitrile or azobisdimethylvaleronitrile; inhibitors: hydroquinone, methyl hydroquinone, nitrobenzene, bisphenol or tertiary butyl catechol.
Patent GB-1437958-A (GB)
Title: Rear-view mirror for vehicles
IPC: B60R1/06
Filed: 1973-04-27
Abstract: 1437958 Rear view mirrors WINGARD Ltd 25 April 1974 [27 April 1973] 20059/73 Heading B7J [Also in Division E2] An external rear-view vehicle mirror comprises a bracket 1 adapted to be secured to a vehicle body and including two spaced parallel hemispherical walls 2 and 3 which are resiliently biased against movement by their inherent resiliency, and an arm 8 carrying a mirror head and angularly adjustable between the walls 2 and 3 about a fixed pivot bolt 7 in the bracket, with a detent 11 to normally locate the arm in a set position. The arm 8 is normally received in a V-shaped groove 17 of the detent 11 but if it receives an impact, the arm can ride over the edges of the V-shape by resiliently deflecting the walls 2 and 3 which are of spring steel. The detent 11 is rotatable about the pivot bolt 7 and lockable in the chosen set position by clamping means 14, 15, 16 extending through an arcuate adjustment slot 9 in the wall 3. Alternatively, the detent may be non-adjustably formed integrally with the wall 3. Such an integral detent is provided in a bracket formed by a plastics moulding, Fig. 9 (not shown), in which the resilient bias against movement is given by a U-shaped spring clip (34) fitting over the bracket.
Patent GB-728199-A (GB)
Title: Improvements in electromagnetic vibratory apparatus
IPC: H02K33/04
Filed: 1953-07-20
Abstract: 728,199. Reciprocating motors. URSCHELER, J., and PATRIS, C. C. F. July 20, 1953, No. 20065/53. Class 35. An electromagnetic vibrator comprises a vibratory table supported elastically by a framework, at least one spring secured to the table and outwardly supported on two shiftable supports, means to shift these supports, and at least one electromagnet secured to the framework with an armature secured to the table. Figs. 1, 2 show a table 1 supported near its corners by guide rods 10 which traverse a frame 2 and are urged downwards by springs 20. A support 7 is centrally secured to the table 1 and to this support spring blades 3 and an armature 14 are secured. The spring blades 3 are supported at their free ends by two linked adjustable supports 4 which can be axially shifted simultaneously inwardly or outwardly by two rotatable screws interconnected by a chain. A hand wheel 11 drives one of the screws 6, the other screw being driven by the said chain. Alternatively, there may be more than two screws or only one screw having a right-hand thread on one part and a left-hand thread on the other part. It is also possible to replace the spring blades 3 by spiral springs. The armature 14 co-operates with an electromagnet 16 fed with A.C. or a pulsating D.C. Several electromagnets may be used when the vibratory apparatus has large dimensions.
Patent GB-504269-A (GB)
Title: Draw bar mechanisms for electric chucking machines
IPC: B23B31/175
Filed: 1937-07-21
Abstract: 504,269. Chucks. FAIRWEATHER, H.. G. C. (National Acme Co.) July 21, 1937, No. 20180. [Class 83 (iii)] In an electrically-operated chuck the jaws are actuated by a drawspindle moved by a rotatable nut threaded thereon and an annular spring is provided in the abutment of the nut in order to urge the nut and draw-spindle axially in 'the closing direction so as to preserve the grip of the jaws on the work if they should tend to bite in after the closing means have ceased to operate. The jaws, (not shown), are moved radially by levers rocked by a draw-spindle 15 prevented from rotating relatively to the lathe spindle 12 by splines 16 and having a screw thread 17 engaged by a nut 19. Dogs 41 on the nut are adapted to be engaged by dogs 40 on a motordriven'shaft 30 which is moved axially at the work-changing station of the lathe turret, as described in Specifications 453,332 and 495,205. A flange 42 on the nut is engaged by thrust bearings 20, 43 held axially by screwed sleeves 22, 23 attached to the spindle 12 and locked by a key 24. The bearings have slight axial play within the sleeves and a corrugated annular spring 44 is placed against the bearing 20 so as to form a resilient abutment therefor which is compressed when the nut is rotated to close the jaws on the work. Should the jaws tend to bite further into the work after the shaft 30 has been disengaged, the spring 44 will expand to move the nut and spindle 15 axially to preserve the grip on the work. The spindle 12 is driven through a clutch 13 and stopped by a brake B, as described in the Specifications above referred to.
Patent GB-1208817-A (GB)
Title: An electric machine
Inventor: HAGEDORN GERHARD
IPC: H02K3/42
Filed: 1968-04-29
Abstract: 1,208,817. Screened lasings of electric machines. LICENTIA PATENT - VERWALTUNGS G.m.b.H. 29 April, 1968, No. 20197/68. Heading H2A. A low-loss end cover of an electric machine comprises an iron or structural steel base member having where it is exposed to an alternating or revolving magnetic field a thin layer of a material having a higher permeability and resistivity than those of the base member. The layer may be of alloyed dynamo sheet metal, fastened by spot welding and between it and the base member there may be sound-absorbing material.
Patent GB-1253402-A (GB)
Title: Improved projectile
IPC: F42B8/14
Filed: 1969-04-21
Abstract: 1,253,402. Projectile. RHEINMETALL G.m.b.H. 21 April, 1969 [1 June, 1968], No. 20230/69. Heading F3A. A projectile for practice purposes comprises a casing 1 terminating in a shoulder 7, a fuze housing 2 containing a percussion fuze device 3 and a self-destructive device 4, the fuze housing having a weakened zone 10, 11 so that upon an oblique impact of the projectile the percussion fuze device 3 separates from the self-destructive device 4 at the weakened zone, the shoulder 7 being in the form of a truncated cone so that on separation of the percussion fuze device, the shoulder glides over the impact surface thereby preventing splaying of the casing and ejection of the self destructive device.