baber/WOPTO huggingface dataset:
Patent GB-797344-A (GB)
Title: Improvements in or relating to polymers of ethylene
Inventor: SEED LESLIE
IPC: C08F10/02
Filed: 1954-04-09
Abstract: An antioxidant is present during the polymerization of ethylene either at pressures above 500 atmospheres and in the presence of oxygen or a free-radical catalyst, or in an inert liquid medium at pressures up to 10 atmospheres and using an ionic catalyst consisting of an alkyl, aryl or alkyl-aryl compound of a non-transition metal of Group I, II or III admixed with a covalent metal halide of a Group IVA, VA or VIA metal.  Specified ionic catalysts are lithium or aluminium alkyls with titanium or vanadium tetrachloride, e.g. lithium n-butyl with vanadium tetrachloride, and these may be used in media such as pentane and petroleum ether.  The free radical catalyst may be an alkyl peroxide such as di-t-butyl peroxide.  Antioxidants disclosed are di-o-cresylol propane, 2:6 - di - t - butyl - p - cresol, 2:4 - di-methyl - 6 - t - butyl phenol, bis - (2 - hydroxy3:5-dialkyl phenyl) alkanes and the 3-cycloalkyl and 3-(alkyl-cycloalkyl) derivatives thereof such as bis - (2 - hydroxy - 3 - t - butyl - 5-methyl phenyl) methane and bis-(2-hydroxy-3-a  - methylcyclohexyl - 5 - methyl - phenyl) methane, monobenzyl hydroquinone, 2:5-dimethyl hydroquinone, t-butyl hydroquinone monomethyl ether, N,N1 - di - b  - naphthyl-p-phenylene diamine and di-lauryl-b -thiodipropionate.  In Example 1, the polymerization is in bulk with the antioxidant being injected into the ethylene stream going to the reaction vessel.  In Example 2, the process uses an ionic catalyst with continuous addition of ethylene, the product being purified by washing with alcoholic hydrochloric acid followed by water.  Specifications 571,943, [Group IV], and 760,178 are referred to.
Patent GB-1418066-A (GB)
Title: Recording and/or reproducing apparatus
IPC: G11B5/008
Filed: 1973-03-05
Abstract: 1418066 Recording and playback; transducer tracking guides TOKYO SHIBAURA ELECTRIC CO Ltd 5 March 1973 [3 March 1972] 10571/73 Heading G5R A transducer mount 35 incorporates a ribbed tracking guide 32 which co-operates with the grooved rear surface of a magnetic tape 30 as the transducer 34 co-operates with the magnetic front surface thereof, the spacing of the ribs and grooves being equal. The guide has an aperture 36 opposite the transducer 34. With an endless tape, the grooves therein may shift through one pitch over the tape length, and the trailing guide may be movable transverse to the tape, e.g. by means of a cam connected to a tape capstan.
Patent GB-431597-A (GB)
Title: Rheostat or potentiometer
IPC: H01C10/32
Filed: 1934-04-07
Abstract: 431,597. Variable resistances; direct connections between conductors. INTERNATIONAL RESISTANCE CO., 2100, Arch Street, Philadelphia, U.S.A. April 7, 1934, No. 10582. Convention date, Jan. 12. [Classes 37 and 38 (i)] A rheostat, particularly for tone control in radio circuits, comprises an annular strip of graphite engaged by a number of radially spaced contacts formed integral with a rotatable contactor and making point contacts on the resistance strip. The resistance strip 31 is secured to an insulating base-plate 10 in which is located a bearing 16 for the control shaft 18 carrying the contact element 22, Fig. 8, this element having resilient fingers 23 provided with projections 66 contacting with the resistance strip. A Y- shape contact member 43 connects the face of the element 22 with the terminals. A snap-action switch 75 of ordinary construction is located below the resistance casing 51, the unit being mounted on panel 55. The resistance strip is provided with additional coatings of higher conductivity at its terminal ends. Intermediate terminal members are provided. Fig. 13 shows rivet terminals 32 connected to the resistance strip 31 by way of carbonaceous coatings 70 and coatings of graphite or metallic paint 71. An under plate 67 has ears 68 bent up over the various resistor and conductor coatings forming a secure terminal unit.
Patent GB-1209942-A (GB)
Title: Crystalline alumino-silicate zeolites containing a cation comprising cerium
IPC: B01J29/06
Filed: 1967-08-22
Abstract: 1,209,942. Zeolites. SUN OIL CO. 22 Aug., 1967 [25 Aug., 1966], No. 10588/70. Divided out of 1,209,941. Heading C1A. The invention comprises crystalline zeolite Y containing at least 1 cation comprising cerium for every 9 atoms of aluminium. " Zeolite Y " is defined as the material defined in U.S. Specification 3,130,007. (This material is virtually the same as that disclosed in Specification 909,266.) Specified cerium cations are Ce<SP>+3</SP>, CeOH<SP>+3</SP>, CeOH<SP>+2</SP>, Ce(OH) 2 +<SP>2</SP> and CeO<SP>+2</SP>. The zeolite may be acidic and substantially anhydrous. It may be prepared by (a) NH 4  ion exchange of crystalline Na zeolite Y, as defined, until the resulting NH 4 - exchanged zeolite contains, on an ignited basis, not more than 3% by wt. of Na; (b) further exchange with a ceriumcontaining solution, e.g. Ce. (NO 3 ) 3 .6H 2 O until the zeolite contains, on an ignited basis, at least 7% by wt. of Ce; (c) heating the zeolite to 125-300‹ C. until there is substantially no further weight loss. The zeolite may then be heated to 320-500‹ C. in presence of a gas, e.g. air, until substantially no further evolution of NH 3  occurs.
Patent GB-1429854-A (GB)
Title: Control of pumping apparatus
IPC: G01N30/32
Filed: 1973-03-05
Abstract: 1429854 Automatic control of pumps WATERS ASSOCIATES Inc 5 March 1973 [6 March 1972] 10607/73 Heading G3N [Also in Divisions Fl Gl and H2] A liquid chromatography column 158 is supplied by a pump 118 driven by a motor whose speed is controlled in response to a measurement (made at 154) of the pressure of the liquid supplied to the column. The drive speed is increased with increasing pressure so as to keep the mass flow-rate substantially constant. 57 is a manifold and 156 is a "reference means" to which the flow may be partially diverted. The pressure sensor 154 comprises a Bourdon-type tube, shaped as shown, for continuous flow; the straight portion progressively interrupts light from a source falling on a photocell. The pump comprises two positive displacement devices driven via elliptical gears to produce a steady flow (see Division F1). The drive is a stepping motor controlled by a semi-conductor circuit (see Division H2). The pressure signal controls a current limiting circuit in addition to the speed, and shuts the drive off if the pressure exceeds a limit.
Patent GB-199190-A (GB)
Title: Improvements in and relating to chair and settee seats
IPC: A47C7/26
Filed: 1922-04-13
Abstract: 199,190. Smith, M. A. K. April 13, 1922. Cushions, attaching to other articles. - The padded seat c of a chair is detachably secured in position by means of a plate d engaging the underside of the frame a and bolts e carried by the seat bottom b. Specification 19708/97 is referred to.
Patent GB-317380-A (GB)
Title: Improvements in and relating to machines for sealing containers
IPC: B67B3/24
Filed: 1928-04-10
Abstract: 317,380. Dehn, F. B., (White Cap Co.). April 10, 1928. Stoppering.-Relates to rotary machines for sealing receptacles in vacuo. According to the invention the machine comprises receiving chambers 34 for the receptacles with means for exhausting air therefrom and hydraulically operated mechanism for raising and lowering the chambers 34 relatively to the receptacles. The upper or rotary part of the machine is supported on a ball-race 11. A hollow shaft 19 supported in a sleeve 14 and closed at its lower end by a cap 21, is driven from a worm 24. The shaft communicates with a chamber 17 by a port 19a and carries a valve disc 27 which co-operates with a port disc 28 to communicate with an exhaust pipe 30. Vertical guide splines 31 are quadrantally spaced around the shaft 19 for the grooved inner ends of the bell-guide arms 32 which carry the bells 34. Housing members 17 contain power cylinders 35 which communicate through passages 33 with plunger chambers 36. The power cylinders 35 contain oil operated pistons 39 which carry brackets 40 on which piston rollers 41 are mounted which travel on cam flanges 12. The pistons 39 are hollow and contain valves 39a, which are operated from rollers 39g travelling on the underside of the flanges 12. Bell plungers 37 are operated by the downward movement of the cylinders 35 which are in turn controlled by the rollers 41, excess air being liberated through the valve 39a. The bells are exhausted by a vacuum pump successively through the disc 28 and are relieved therethrough. The sealing plungers are operated through a lever 70 and rollers 77. The sealing heads comprise disc 72 having a swivelled connection with the plungers. The bells travel in a course which brings their rollers 77 under the inclined surface of the lever 70, forcing down the sealing heads 72 against the pressure of springs 78 on to the receptacles. Electric current is supplied to a motor 26 which operates the worm 24 through a chain 25. A guard 91 controls the switch 81 and stops the machine automatically if one of the bells does not reach the sealing position. The machine may be operated continuously or intermittently and the receptacles may be fed to the bells either manually or automatically.
Patent GB-106518-A (GB)
IPC: H02K7/116
Abstract: 106,518. Atherton, C. A. May 20, 1916. Friction gearing; toothed gearing.-An electric motor 1 is supported by pivots 2 in a stationary ring 3 and is provided with shaft driving-wheels 9 engaging the upper and lower surfaces of a ring 7 of rubber, leather, raw hide or the like. The ring 7 is fixed between the parts 4, 5 of a rotating shell, which may carry fan blades 12. The mass of the motor is unsymmetrically arranged in relation to the pivots to obtain a driving pressure, this being assisted by a spring 10 hooked over projections on the motor and on the ring 3. Toothed gearing may replace the frictional gearing.
Patent GB-1081155-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/36
Filed: 1966-03-10
Abstract: 1,081,155. Sliding clasp fasteners. SCOVILL MANUFACTURING CO. March 10, 1966 [March 12, 1965], No. 10663/66. Heading E2S. In a sliding clasp fastener comprising a pair of tapes having interlocking fastener elements in the form of loops or coils of thermoplastic material, an end stop is formed by welding together a plurality of the loops or coils only at their interfaces where they are in abutting relationship. The welding is effected by an ultrasonic device.
Patent GB-380016-A (GB)
Title: Improvements in or connected with trays or dumb waiters
IPC: A47B13/14
Filed: 1932-04-14
Abstract: 380,016. Tables. GRIESSMANN, L. and GRIESSMANN, E., (trading as BAYERISCHE M€BELFABRIK GRIESSMANN & CO.), 3, Feldgasse, Nuremberg, Germany. April 14, 1932, No. 10699. Convention date, April 24, 1931. [Class 52 (iii).] A tray or dumb waiter 1 with folding legs 5 comprises a locking-lever 8, pivoted at a point 9 beneath the tray, and pressed by a spring 10 so that its free end engages with a plate 6 on the yoke 4 carrying the legs 5. To enable the legs to be folded under the tray, a fingerpiece 7 is pressed down so that its head 71 disengages the lever 8 from the part 6 ; the legs 5 may then be turned about the hinges 3.
Patent GB-792912-A (GB)
Title: Devices for dispensing mixtures of liquids
Inventor: WELTY FRANK
IPC: B67D1/00
Filed: 1954-04-13
Abstract: 792,912. Dispensing liquids. CARBONIC DISPENSER, Inc. April 13, 1954, No. 10798/54. Class 116 Two flavouring syrups are delivered selectively by valves 12a, 12b (Fig. 1) controlled by cams 34, 36 operated by pivoted levers 31, 33 to depress the valves 12a, 12b and simultaneously to operate a single valve 14 to deliver a base liquid to be mixed with the syrup. A third cam 35 may be controlled by a handle 32 to depress a member 43 which operates. both the valve 14 for the base liquid and a, further flavouring valve 12c, (Fig. 2). As illustrated the member 43 is carried in a slot in a sliding thimble 15 operating the valve 14. and is guided by a pin 44 sliding in the member 43 and in the stainless steel body 10 which houses the valves. The cam 35 has a foot 50, operates a valve 51 delivering base liquid only. Each. cam 34, 36 has a similar foot which bears against the body 10 to limit the movement of the cam. Each cam has also a flat portion 34a, a cam portion 34b leading to a short flat 34c which corresponds to the fully opened position of the valve and a larger flat 34d which limits the movement of the cam. The device illustrated is identical with that described in Specification 792,911.
Patent GB-108003-A (GB)
IPC: A61F2/60
Abstract: 108,003. Moody, G. Dec. 20, 1916. Spring hinges. - A spring hinge for artificial limbs comprises two members a, a<1>, Figs. 7-9, provided with bosses c, c<1> fitting one within the other, and with interrupted cylindrical projections J, d<1> which act as stops for limiting the angular movement. The members when fitted together form an annular chamber in which a coiled spring m is housed and abuts against lugs formed upon the members. In a modified construction, Fig. 11, there is a complete tubular projection d<1> in place of the interrupted cylinder, the lug n being so dimensioned as to clear it.
Patent GB-664944-A (GB)
Title: Improvements in apparatus to facilitate the removal of collets from valve stems
IPC: B25B27/26
Filed: 1949-04-23
Abstract: 664,944. Removing valves. ARTHUR, E. M. April 24, 1950 [April 23, 1949], No. 10811/49. Class 61 (ii) An implement to facilitate the removal of the collet from a valve stem comprises a member adapted to be placed between the tappet of the valve and the collet engaging washer to enable the valve stem to be moved to free the collet from the washer, such member being adapted to form a receiver to collect the collet halves after they have been dislodged from the valve stem. In operation the valve stem 8, Fig. 1, is raised by a valve lifter 7 and the implement which comprises a recessed head 2 on a hand grip 1 is inserted between the lifter and the tappet 3 to hold the stem 8 in the raised position. The valve lifter 7 is then removed to permit the stem to move downwards into the recess 4 so that the collet halves 5 fall away from the stem into the recess.
Patent GB-870137-A (GB)
Title: Improvements relating to stanchion assemblies in distortable constructional frameworks
Inventor: HEATHCOTE FRANCIS WILLIAM LIST
IPC: E04B1/36
Filed: 1957-04-03
Abstract: 870,137. Distortable frameworks: foundations for buildings. BROCKHOUSE STEEL STRUCTURES Ltd. March 27, 1958 [April 3, 1957], No. 10829/57. Classes 20(1) and 20(2) In a distortable framework for a building subject to mining subsidence there is provided a vertical stanchion which is secured to a foundation or the top of another stanchion by a connection which permits a controlled amount of universal rocking movement about its lower end, and also a controlled amount of vertical lift between the stanchion and its support. The stanchion comprises two channel section members 10 joined together by plates 11 and having an end plate 12 at their lower ends which has a central aperture 13. Secured to the underside of this plate is a domed bearing block 14 also with a central aperture and bearing on a plate 17 firmly secured to the foundations and having a vertically extending rod 18 passing through it. The apertures in the block 14 and plate 12 are made larger than the rod 18 which passes through them so that the stanchion may rock. A plate 20 passing through a slot 21 in the rod prevents undue vertical movement of the stanchion. Specification 825,059 is referred to.
Patent GB-559889-A (GB)
Title: Improvements in apparatus for checking gear wheels
IPC: G02B21/00
Filed: 1942-09-05
Abstract: 559,889. Optical-projection apparatus. FREEMAN, G. Sept. 5. 1942, Nos. 10909 and 16158. [Class 97 (i)] Apparatus for use in checking and examining the teeth of spur and other gears comprises means for directing two parallel tight beams on to different portions of the gear, and lens and reflector systems for projecting on to a screen images which are in laterally reversed relative positions, and one inverted relatively to the other. Fig. 1 shows reflectors d@ ...d<SP>1</SP> dividing a beam from a source D into beams B<SP>1</SP>, B<SP>2</SP> directed on to diametrically opposite parts a<SP>1</SP>, a<SP>2</SP> of a gear A rotatably mounted on a spindle f. Lenses E<SP>1</SP>, E<SP>2</SP> and mirror systems e<SP>1</SP>, e<SP>2</SP> project images in the desired relation on the screen, the system e having one reflecting surface additional to those of the system e<SP>4</SP> to produce the relative inversion. Fig. 5 shows apparatus wherein a laterally-placed light source in a lamp house D<SP>1</SP> is divided, by two mirrors only, to produce the beams, additional reflectors e<SP>3</SP>, e<SP>4</SP> being provided to direct the images to a screen H in a hood h. A carriage F for the spindle f is movable in the direction of the beams by a screw f<SP>2</SP> and hand wheel f<SP>3</SP>, and housings G for the lens and mirror systems are independently adjustable by screwmeans g. The images. may be brought into positions such that the outer or root circles, or the pitch circles of the teeth may be in contact. and the wheel may then be rotated the images appearing to rotate in opposite senses. The single light source may be replaced by separate light sources, and the two projection lenses may be replaced by a single lens
Patent GB-768608-A (GB)
Title: Improvements in mechanical pit-props
IPC: E21D15/26
Filed: 1955-04-15
Abstract: 768,608. Screw jacks. HANDLEY, J., and UNION TOTALISATOR CO., Ltd. April 15, 1955, No. 10919/55. Addition to 744,595. Class 78 (3). [Also in Group X] The pit prop of the parent Specification comprising three telescoping members en. gaging by opposite screw threads and in which one member is clamped against another is modified by constricting the outer member of arcuate sections welded together longitudinally at the lower end, the upper ends of which, separated by gaps 21a, each carry a cast arcuate part of a nut 23 adapted to be contracted by a clamp 37 and engaging by bosses 24 in holes in the outer member. The clamp is contracted by a bolt 38 having at one end a washer 42 with a radiused surface and at the other end an operating lever 39 having a cam 40. The clamp band 37 has kinks to render it flexible.
Patent GB-1174235-A (GB)
Title: Process and Apparatus for Separation of Acyclic Ketones and Azines
Inventor: PORTER NEIL WILLIAM WOODROW
IPC: C07C251/88
Filed: 1966-03-12
Abstract: 1,174,235. Fractionating columns. FISONS INDUSTRIAL CHEMICAL Ltd. 20 Feb., 1967 [12 March, 1966], No. 10983/66. Heading B1B. [Also in Division C2] An apparatus for separating one or more components of a mixture consisting -of an acyclic ketone capable of forming a minimum boiling azeotrope with water, the azine and, optionally, the hydrazine of the ketone, ammonia, sodium chloride, ketone condensation products and water, comprises a fractionating column the vapour pipe of which leads to a reflux condenser which discharges into a twophase liquid separator unit, the separator having two communicating zones, the first zone having connecting means with the reflux condenser, and with the second zone at a point below the interface of the two phases, the second zone having an overflow means connected to the fractionating column whereby the lower phase overflows back into the column and the first zone having an offtake line located so as to remove the upper phase. The mixture may be introduced into the apparatus above, below or into the liquid separator, into the fractionating column or above the reflux condenser. The fractionating column preferably has at least 5 theoretical plates. To prevent loss of ketone and azine in the vapour leaving the reflux condenser a section of packed column, through which water or aqueous ammonia is passed, may be fitted above the condenser. The apparatus is illustrated by reference to drawings (not shown) of two different separator units.
Patent GB-178322-A (GB)
Title: Improvements in school furniture
IPC: A47B39/00
Filed: 1921-04-15
Abstract: 178,322. Bennet, G. April 15, 1921. School desks; desk frames. - A school desk and seat supporting side frame of the kind described in Specification 131,562 comprises a tubular desk supporting limb 1<a> and a tubular seat supporting limb 2<a> united by a non-tubular metallic rod or bar 3a engaging sockets 4<a>.
Patent GB-759302-A (GB)
Title: Improved wire coil screw thread inserts for mouldings formed therearound
IPC: F16B37/12
Filed: 1954-04-15
Abstract: 759,302. Screw-sockets. HELI-COIL CORPORATION. April 15, 1954 [June 10, 1953], No. 111l3/54. Class 89 (1). .  A wire-coil female screw-thread insert 10 comprises a number of interlocking coils wound with tension to bear tightly upon one another, the end coils being machined, e.g. by grinding, in planes normal to the axis of the insert, the inner portion 14 of the wire cross-section forming the female thread and the outer portion 15 anchoring the insert in a moulding 11 formed therearound. The interior of the coil is sealed from the exterior moulding space by the shape of the wire cross-section. The insert is compressed axially and may be supported by a cylindrical rod during moulding, and a helical labyrinth 28 between the coils receives any material leaking into the insert. Wires of other cross-sectional shape may be used and the labyrinth may be omitted. Suitable moulding materials are polystyrene, nylon, cellulose compounds, rubber, phenolformaldehyde and ureaformaldehyde.
Patent GB-369429-A (GB)
Title: Improvements in or relating to motor vehicles, marine craft, and the like
IPC: B60J7/12
Filed: 1931-04-15
Abstract: 369,429. Road vehicle hoods and weatherscreens. DEAN, T. E., 50, Avondale Road North, Southport, Lancashire. April 15, 1931, No. 11115. [Classes 103 (ii) and 108 (i).] In vehicle hoods the pillars are detachably connected at their upper ends to the cant rail so that the pillars may be detached from the cant rail and raised to support the side windows when the hood is collapsed. The hood comprises horizontal cant rails 17, 19 hinged together at 18 and to pillars 11, 12 which pillars are also hinged to the body 1. The pillar 12 is detachably hinged to the cant rail so that after the hood is collapsed the pillar 12 may be released and erected in the vertical position to act as a guide for the window 24 the other guide preferably being constituted by slots 38, 39 in the cant rails 17, 19. The connecting pin for the pillar 12 and the cant rails may be a thumbscrew entering registering holes, a slidable pin or a split pin. Distancing buffers or cushions 37 may be provided. The pillars 11, 12 and cant rail 17 are provided with grooves 25 for the window.
Patent GB-200913-A (GB)
Title: Improved manufacture of storage battery separators
IPC: H01M2/16
Filed: 1922-04-20
Abstract: 200,913. Wade, H., (Gould Storage Battery Co.). April 20, 1922. Separators.-Fibrous separators for storage batteries are treated with linseed oil which may subsequently be oxidized. The oil may be dissolved in benzol, turpentine or other volatile solvent and the separators immersed in the solution, or they may first be placed in a vacuum apparatus to which the solution is admitted, the vacuum being maintained until the solution has risen above the separators. The saturated separators are finally exposed to a drying agent such as the air to evaporate the solvent. Warm air or other medium may be used to oxidize the oil in the pores of the separators.