baber/WOPTO huggingface dataset:
Patent GB-937747-A (GB)
Title: Improvements in and relating to vinyl halide polymer compositions
Inventor: DAVENPORT NOEL ERNEST
IPC: C08L27/06
Filed: 1959-04-28
Abstract: A polymer composition comprises a blend of (1) a vinyl halide homo- or co-polymer containing a major proportion of vinyl halide units and (2) a graft polymer obtained by polymerizing one or more ethylenically unsaturated monomers on to a rubbery copolymer of from 60 to 90 parts of butadiene and correspondingly either (a) 40 to 10 parts of acrylonitrile or (b) a mixture of 5 to 35 parts of acrylonitrile and 5 to 35 parts of styrene; the vinyl halide polymer constituting from 70 to 99% of the blend, and the homopolymer or copolymer of the ethylenically unsaturated monomer or monomers being incompatible with the vinyl halide polymer, monomers specified being styrene, alpha-methylstyrene, a vinyl toluene, a chlorostyrene, methyl methacrylate, an acrylate ester, vinylidene chloride, acrylonitrile or an alkylacrylonitrile. Vinyl halide polymers specified are polyvinyl chloride and a vinyl chlorideacetate copolymer.  Also present in the blend may be a resinous processing aid which is a copolymer of 50 to 90% styrene and 10 to 50% acrylonitrile.  Other specified ingredients are dibutyl tin maleate a montan ester wax, calcium stearate and titanium dioxide.  The preparation is described of graft polymers by polymerizing styrene, methyl methacrylate, styrene plus methyl methacrylate and alpha-methyl styrene plus acrylonitrile in a latex of a butadiene-acrylonitrile copolymer in the presence of potassium persulphate.  Alternatively, the graft polymerization process described in Specification 935,996 may be employed.
Patent GB-775286-A (GB)
Title: Cylindrical filter
Inventor: COOK ERNEST PARISH
IPC: D21G9/00
Filed: 1955-07-06
Abstract: The apparatus is identical with that disclosed in Specification 775,285 but the claims are directed to the cylinders as filters with helically-extending drainage passages behind their surfaces.
Patent GB-697733-A (GB)
Title: Improvements relating to pastry moulding machines of the intermittently rotatable table type
Inventor: BURKE HAROLD
IPC: A21C9/06
Filed: 1950-06-13
Abstract: 697,733. Rotary-table pastry-moulding machines. CONCENTRIC MANUFACTURING CO., Ltd. Sept. 6, 1951 [June 13, 1950]. No. 14684/50. Class 87 (ii). [Also in Group XXIV]. A machine of the kind having an electricallydriven intermittentlyrotated table carrying dies for the reception of baking tins into the shape of which dough pieces are moulded on descent of a moulding plunger comprises means for stopping the machine if the table jams. The table 2 is driven by a shaft 14 through a dog clutch 16, 17 which is disengaged on overload and rocks a lever 28 pivoted at 29 to open a switch 31 which breaks the motor circuit and thus stops the machine. The driving element 16 of the clutch is splined on the shaft 14, and the driven element 17. is detachably secured at 18 in a recess 19 in a sleeve 15 secured to the table. The clutch elements interengage by means of V-shaped. teeth which are pressed together by a spring 20 bearing at its upper end against an abutment 21 secured to the shaft. A vertical pin 24 rigid with a transverse pin 25 is slidable disposed in an axial bore in the upper end of the shaft and the pin 25 lies in an elongated slot 26 in the shaft, this slot allowing vertical movement of pin 25. On overload the driving element 16 will be forced upwardly (the V- shaped teeth disengaging) against the action of spring 20, and will carry with it the pins 25, 24 thus rocking lever 28. Specifications 681,544, [Group XXIV], 681,545, [Group XXVIII], and 700,749 are referred to.
Patent GB-805576-A (GB)
Title: N-[ª‰-(chlorophenyl)-ª‰-(hydroxy)-ethyl] isopropylamine
Inventor: MILLS JACK
Filed: 1957-05-08
Abstract: The invention comprises N-[b -(o-chloro phenyl) - b  - (hydroxy) - ethyl]isopropylamine and pharmaceutically acceptable acid addition salts thereof.  These compounds are obtained by brominating chloroacetophenone using a peroxide catalyst to give b -bromo-o-chloroacetophenone, which is reduced with NaBH4 to yield o-chlorophenyl ethylene b -bromohydrin and o-chlorophenyl ethylene oxide, which on treatment with isopropylamine give the desired free base.  Salts are formed with hydrochloric acid, hydrobromic acid, sulphuric acid, nitric acid, phosphoric acid, tartaric acid, maleic acid, citric acid, benzoic acid, ascorbic acid and lactic acid.  An example describes the preparation of the free base and of the hydrochloric acid addition salt.
Patent GB-257677-A (GB)
Title: Improved apparatus for pushing or loading colliery tubs or wagons into mine cages and for similar purposes
IPC: B66B17/20
Filed: 1925-06-05
Abstract: 257,677. Elliot, C. June 5, 1925. Rope railways.-Apparatus for pushing colliery tubs a into a mine cage b, and for similar purposes, comprises a one-way pusher c<2> pivotally mounted on a bogie c which runs to and fro between rails d. The bogie is normally held in the position shown in full lines by triggers e, e<1> engaging the lower end of the pusher c<2>, and the pusher acts as a stop to hold back the on-coming tubs As the cage approaches the bank, it engages a catch f, and pulls down the triggers, and the bogie c is then moved to the right by a weight g<2>, the pivoted pusher c<2> passing under the tubs and rising again behind them as shown in broken lines. The bogie is then moved forwards by a projection h' on the endless chain or belt h engaging an arm c<5>. The chain h is driven through a friction clutch h<3>, which is engaged by hand, or automatically by the bogie striking a lever h<5> to actuate the link h<6>. As the bogie approaches the end of its forward movement, wedges j on the track raise a stop on the bogie, allowing the arm c<5> to turn about a pivot and become free from driving member h<1>. The chain h runs on until the projection h<1 >strikes the lever h<5> and throws out the clutch. The bogie overruns the triggers e<1>, e, but is returned to the initial position by the action of the weight. g<2>, and is then held by the triggers.
Patent GB-735232-A (GB)
Title: Residual fuel oils
Inventor: HANSON THOMAS KENNETH
IPC: C10L1/12
Filed: 1952-06-11
Abstract: Residual fuel oils containing oil-soluble magnesium compounds are prepared from vanadium containing crude oils by adding a minor proportion of metallic magnesium or magnesium oxide, hydroxide or carbonate, and distilling the crude oil.  The oil-soluble compounds may react with the vanadium to form magnesium orthovanadate.  Crude oil rich in naphthenic or phenolic constituents may be used.  The residual oil is suitable for use in gas turbines.  The Provisional Specification refers to the use of compounds of magnesium in general.
Patent GB-1224211-A (GB)
Title: Process for the manufacture of panels, in particular for buildings
IPC: B29C44/30
Filed: 1968-03-27
Abstract: 1,224,211. Laminate. COMPAGNIE DE SAINT-GOBAIN. 27 March, 1968 [11 Dec., 1967], No. 14759/68. Addition to 1,224,028. Heading B5N. The process of the parent invention is modified in that the first thermosetting resin is located between two webs of the second thermosetting resin and adjacent longitudinal edges of the webs are joined to enclose the first resin before foaming of the latter begins. As shown, the resin 3a for the foam core is spread from a device 6 over a web 2 and is then covered by the other web 1, rolls 8 and 9 being positioned so that no air is entrapped between the webs. Alternatively, Fig. 9 (not shown), a single roll (7) may be used for this purpose. Subsequent expansion of the resin 3a to form the foamed core 3 is limited by endless belts 12, 13, between which the laminate passes. Grippers 10, mounted on conveyers (11), Figs. 12, 13 (not shown), hold adjacent edges of webs 1 and 2 in contact during foaming of the core. The heat liberated by core resin 3a during its conversion to core 3 may be sufficient to heat-set both webs 1 and 2 and the core 3 and to bond the core to the covering webs. Alternatively, heat may be supplied by heating belts 12, 13 and grippers 10 to accelerate the heat-setting. The contact between adjacent edges of webs 1 and 2 may be reinforced by cords, e.g. of resin - impregnated glass fibres (5), Figs. 5-8 (not shown), one of which may be glued to each longitudinal edge of web 2. The width of the laminate, comprising the enveloped core, may be decreased during foaming, Fig. 12 (not shown). The web on to which the resin to be foamed is spread may be pre-formed into a trough and the edges of the panel including the overlapped bonded web edges may be formed into various configurations, Figs. 1-4 (not shown). Each of the grippers 10 may comprise two jaws which are urged into the gripping position by a spring and forced apart by mechanical means which coacts with a projection located at the downstream end of the conveyers carrying the grippers Figs. 16, 17 (not shown). Alternatively, the grippers may normally be open and mechanical means may be provided which coact with rails running alongside the conveyers to urge the gripper jaws into gripping position, Figs. 14, 15 (not shown). A further alternative, Fig. 18 (not shown), includes on each side of the panel two chains which move on two respective sets of sprockets, which sets are inclined to each other. The chains of each pair are close together when gripping the side edges of the webs and then move apart to release the same.
Patent GB-235714-A (GB)
Title: Pre-cast concrete blocks for reinforced concrete structures and buildings
IPC: E04B2/20
Filed: 1924-06-19
Abstract: 235,714. Hodgkinson, A. J. June 19, 1924. Building-blocks, special shapes of.-Blocks having grooves F on a pair of opposite sides connected by grooves G on the end faces, have the four transverse edges E bevelled. The blocks may be hollow and have a diagonal web H, Fig. 9, in which case they may be formed of two parts contacting along the centre of the web.
Patent GB-770383-A (GB)
Title: Improvements in or relating to closures for bottles and the like
IPC: B65D51/26
Filed: 1955-05-23
Abstract: 770,383. Stoppers. BUNDER-GLAS GES. May 23, 1955 [March 18, 1955], No. 14807/55. Class 125(3). A closure 2 having means for resiliently restraining. movement of tablets &c. within the container has claws 4 formed by slits 3 alternate claws having nose pieces 7 which contact the container wall to move the points of the claws inwardly and prevent penetration of contents into the hollow body of the stopper. In a modification the claws have bulges 8. Reference, has been directed by the Comptroller to Specification 729,168.
Patent GB-1516803-A (GB)
Title: Obtaining an object from a conveyor
IPC: B23Q16/06
Filed: 1976-04-12
Abstract: 1516803 Endless conveyers OFFICINE MECCANICHE RINO BERARDI SpA and A BUFFOLI 12 April 1976 [10 April 1975] 14838/76 Heading B8A Apparatus for obtaining an object comprises an endless driven chain 10 on which objects 14 are removably mounted by means of spaced supports 12, the chain 10 being drivable intermittently in the direction X with a standstill period between each driven step, and at a code mark reading station 22 a code mark previously applied to each object 14 is read, and if the code mask of a required object is read a control signal is transmitted by the station 22 whereby in the course of the next standstill of the chain 10, when the required object 14<SP>11</SP> and its support 12 are adjacent to a withdrawal station 24 the drive means for the chain 10 is stopped to permit withdrawal of the object 14<SP>11</SP>. The chain 10 is driven by a gear wheel 16 from an electric motor 26, the shaft 28 of the latter driving a shaft 38 on which a roller 50 is eccentrically mounted for rotation relative to the vertical axis of shaft 38. During each 360 degree revolution of roller 50 it engages one of four radial grooves of a Maltese Cross 52 and rotates the latter through 90 degrees, the roller 50 being in engagement with the groove for 270 degrees of its rotation during which it rotates the cross 52, but for the remaining 90 degrees of each full revolution the roller 50 is between the first-mentioned groove and the next groove which it subsequently enters so that the cross 52 and thus the gear wheel 16 is temporarily stationary, thereby providing the above-mentioned standstill of the chain 10.
Patent GB-353972-A (GB)
Title: Improvements in and relating to indexes or directories for classifying information of any kind
IPC: B42F17/28
Filed: 1930-05-15
Abstract: 353,972. Adjustable indicators. PAUL, H. D. V., 17, Rue de Bever, Ninove, Belgium. May 15, 1930, No. 14908. [Class 118 (i).] An index or directory, for example for telephone numbers, comprises a base disc 1 of sheet metal or pasteboard having a central hole for the reception of a hub member 2 having connected to it a disc 6 frictionally holding in place the pasteboard sector-shaped leaves 4. These have an angle of approximately 180‹, are pivoted by eyelets or flat pivot pins 3 to the base disc 1 and are cut away at 5 to receive the hub member 2. To facilitate the selection of the leaves the corners may be shaped to project slightly from the circumference of the disc 1 to be easily engaged by the fingers. The hub member 2 is formed of a ring of indiarubber or cork on the opposite sides of which the discs 1, 6 are glued, and is rotatably fitted on a bracket or on the mouthpiece of a telephone receiver. The hub member 2 may be solid and end on each side in a small journal to be fitted into holes in the arms of a forked bracket. A modified construction of leaf is shown in Fig. 4. Specification 10184/05, [Class 118, Signalling &c.], is referred to.
Patent GB-1212768-A (GB)
Title: Apparatus for feeding flattened tubular sections of flexible foils
IPC: B65H3/08
Filed: 1968-03-28
Abstract: 1,212,768. Feeding sheets. WINDMOLLER & HOLSCHER. 28 March, 1968 [25 April, 1967], No. 14921/68. Heading B8R. Apparatus for feeding flattened tubular sections having gussets formed by folds along their longitudinal edges, comprises supporting means for a stack of sections wherein the sections adopt a configuration with transverse corrugations, and a feed member having a plurality of suckers which engage the top section of the stack near to a longitudinal edge, the feed member being operable to move the section transversely from the stack with the abovementioned longitudinal edge leading. Fig. 1 is an elevation of feeding apparatus for a bagmaking machine in which suckers 6, 6<SP>1</SP> carried on a pipe 8 connected to a vacuum source (not shown) engage the top section of a stack; the stack is supported in corrugated fashion by either a single continuous metal plate bent into a zig-zag formation, or a plurality of separate plates 20 forming a zig-zag support. The pipe 8 and suckers 6, 6<SP>1</SP> perform a movement to feed the top section to a feed roller (9) pivoted out of contact with a conveyer belt (11). (Fig. 2, not shown); the roller (9) is then moved towards the belt (11) and the vacuum is cut off to allow subsequent feeding to the bag-making machine. There may be two sets of apparatus feeding sections alternately (Fig. 2, not shown). Slots formed in the plates 20 may accommodate conveyer belts 4 which advance a complete stack to the feed position when the previous one has been exhausted. Alternative support means are parallel rods (22) (Fig. 4, not shown) spaced apart above the table, or parallel ribs (23) (Fig. 5, not shown) upstanding from the table; in these cases the conveyer belts 4 run by the side of the support members. The rods and ribs are generally beneath the crests of the corrugations, but may be supplemented by intermediate supports (29), (30), above which are mounted suckers (28) between the crests and the troughs. Hold-down members 21 (Fig. 1) maybe secured to pipe 8 adjacent the suckers 6<SP>1</SP> to define the troughs, and to ease the forces acting on the suckers.
Patent GB-563080-A (GB)
Title: Improvements in or relating to metallised paper electric condensers
IPC: H01G13/06
Filed: 1942-10-23
Abstract: 563,080. Condensers. HUNT, Ltd., A. H., and GROUSE, R. A. Oct. 23, 1942, Nos. 14926 and 16674. [Class 37] [Also in Group II] 'An unmetallised strip is produced on a paper band fully metallised on one side by removing the metal by bringing the material into contact with and moving it past an electrified conductor, while maintaining the metallised area of the paper of an opposite polarity so that current passing burns off the metal along the desired strip. In one example, the conductor is in the form of a roller in contact with the unmetallised side, so,that a strip or strips are on one or both edge margins of the paper. If both edges are thus demetallised, the band may be slit centrally to form two strips of opposite hand suitable for forming a condenser on winding. In another example, the metallised paper band is of such a width as to comprise several unmetallised strips spaced parallel and several conductors may be applied simultaneously to the metallised surface to produce the strips. A machine for doing this is shown in Fig. 3, wherein a feed roll of metallised paper 41 is mounted on a spindle 40, the paper band passing with the metallised surface under and in contact with a roller 53 electrically earthed, over an adjustable roller 66 so positioned that a series of spaced electrified disc conductors 67 just touch the metal surface of the band to burn off the metal along the strips of contact. Thence the band passes under a series of disc knives 83 to sever it along the centres of the bared strips and also midway between them, to a roller 71 and thence to two collecting rolls 90, 91 on which the bands thus formed with a bared edge on right and left edges are separately rolled. The stock roll 41 and the collecting rolls 90, 91 are both frictionally mounted and driven so that the band is at a suitable tension throughout. Specifications 485,965, 503,851, [both in Group II], 558,686, 558,687, 558,688, and 563,084 are referred to.
Patent GB-915482-A (GB)
Title: Circuit arrangement for stabilising direct-current voltages
IPC: G05F1/52
Filed: 1959-05-01
Abstract: 915,482. Automatic voltage control systems. STANDARD TELEPHONES & CABLES Ltd. May 1, 1959 [May 2, 1958], No. 14959/59. Class 38 (4). In an automatic direct voltage control system employing a series regulating triode Ro1 the controlling grid-bias is derived across the collector to base circuit of a transistor T. The emitter to base bias of the transistor is dependent on the difference between a stabilized reference voltage across a Zener diode D and the voltage across a resistor R2 in a voltage-divider, comprising resistors R2, R3, R4, across a load Rv. A further bias, compensating for change in the input voltage is applied to the base circuit of the transistor T across a resistor R7 in a voltage-divider, comprising resistors R7, R8, R9, connected across the regulating triode Rol. Increase in the load voltage causes a reduction in the collector current so reducing the voltage drop across a resistor R1 to increase the negative bias to the grid of the regulating triode and so tend to restore the output voltage to its original value. The power supply for the transistor comprises a full-wave rectifier G and resistancecapacity filter Cl, C2, R6. It is stated that the components enclosed by the dotted line may be assembled on a printed circuit.
Patent GB-625218-A (GB)
Title: Improvements in or relating to electrically heated gloves or the like for heat treatment of the hands
IPC: H05B3/34
Filed: 1947-06-06
Abstract: 625,218. Electrically heated gloves. CARLTON, J. June 6, 1947, No. 15035. [Class 39(iii)] A fingerless glove comprises two flat pieces of flexible material (a) (b), and is formed in the example shewn by folding along a connecting strip (c) and joining the edges together as by stitching at (e). Preferably each piece consists of a heating wire (d) held between two layers of fabric (o) (p) enclosed within outer layers (a) or (b) of fabric, india-rubber, plastic &c. An oiled-silk lining may also be used. A thermostat may be incorporated in the glove.
Patent GB-553379-A (GB)
Title: Improvements in and relating to apparatus for separating oil from water contaminated therewith
IPC: B01D17/02
Filed: 1941-11-21
Abstract: 553,379. Gravity - separation apparatus. UNTHANK, G R., and SILLEY, H. A. J. Nov. 21 1941, No. 15044. [Class 46] In a device for separating oil from water in which the liquid passes from an inlet 8 downwardly through a chamber 3, in which a primary separation takes place, then upwardly into a chamber 4, in which a secondary separation is effected, and finally downwardly through a member 7 to an outlet pipe 9, the member 7 is provided at the upper end with a perforated conical distributing plate 22, extending towards the conical part 5<SP>1</SP> of the chamber 4, to prevent turbulence. The total effective area of the plate 2 is preferably about one-half the cross-sectional area of the upflow stream. The chamber 3 is provided with a perforated cone 27 for distributing the incoming liquid and a pipe 12 for removal of oil. Valve controlled pipes 14, 17 lead to an observation vessel 19 for testing the presence of air and scum or oil in the chambers 3, 4 and the depth of oil in the chamber 3, the vessel being connected through cocks 20, 21 with the pipe 12 or wthe liquid to be treated. A stream coil 25 is provided.
Patent GB-587784-A (GB)
Title: Improvements in mechanical control devices and locking means therefor
IPC: B64D31/04
Filed: 1944-08-08
Abstract: 587,784. Locking levers. SHAKESPEARE PRODUCTS CO. Aug. 8, 1944, No. 15051. Convention date, July 9, 1943. [Class 80 (iii)] [Also in Group XXXIII] In a manually-operable mechanical control device in which a rotatable primary control member operates the element to be controlled through a co-axially rotatable secondary control member having locking means adapted to be disengaged by the means transmitting motion from one member to the other, the locking means comprises two opposed pawls mounted on the secondary member and normally engaged with a stationary ratchet, the sides of the pawls having inclined bearing portions adapted to be engaged by two spaced pins carried by the primary member and embracing the secondary member, and the arrangement being such that upon rotary movement of the primary member in either direction one of the pins engages on the pawls to disengage it from the ratchet and allow the secondary member to be moved by the other pin. As shown, applied to a throttlecontrol lever assembly, Figs. 1, 2 and 3, primary levers 5, 6 and 7 and secondary levers 5', 6<1> and 7<1> are pivotally mounted on a hub 3 carried by spaced quadrants 1, 2, the levers being spaced apart by rings 9 and friction rings 10 having lugs 11 engaging bolts 12 interconnecting the quadrants. A single lever 8 is also mounted on the hub. Levers 5<1>, 6<1>, 7<1> and 8 have apertured extensions 5a, 6a, 7a and 8a to which the controlled devices may be connected. The levers are held in position by retainers 13 and 15, connected by a bolt 14, and a resilient spider 17 having legs which pass through apertures 4 in the hub 3 and engage the outer friction ring 10. The primary levers are guided by arcuate spacers 42 and friction members 43 located by bolts 26 passed through the quadrants. Each secondary lever carries a spring-loaded double pawl 34, 36 which is pivoted by means of a forked bearing 35 and grooved pin 38, and co-operates with a ratchet sector 45 and arcuate pawl retaining guides 44 located' between adjacent spacers 42. Motion is transmitted from the primary to the secondary levers by pins 31 carried by brackets 27 clamped to the primary levers. On movement of a primary lever, the leading pin 31 rides on an inclined surface 37 of the double pawl and moves the latter out of locking engagement with the ratchet; the secondary lever is then rotated by the other pin 31. On release of the primary lever, the secondary lever is automatically locked in position by the double pawl. In a modification, Figs. 6, 7 and 8 (not shown), the invention is shown applied to a hand-wheel operating a trimming tab.