baber/WOPTO huggingface dataset:
Patent GB-926035-A (GB)
Title: Phenol-formaldehyde resin adhesive compositions
IPC: C08L61/10
Filed: 1959-10-27
Abstract: An aqueous alkaline solution of a phenolformaldehyde resin, suitable as an adhesive for laminating, contains 15-45 parts by weight of alkali metal hydroxide and 5-50 parts by weight of formamide as setting accelerator, per 100 parts by weight of the phenolic component in the resin.  The resin is defined as a further condensable condensation product of a phenol and formaldehyde insoluble in water but soluble in solutions of alkali metal hydroxides; the phenolic component may be phenol itself or cresols, xylenols or resorcinol or mixtures of these with phenol. Additional components of the composition are a thickener such as methyl cellulose; a filler, e.g. nut shell flour, wood flour, Douglas fir bark or a lignocellulose filler; and formaldehyde or a formaldehyde donor.  In addition to describing the compositions and the applications thereof, the examples also describe the sodium hydroxidecatalysed preparation of the resins.
Patent GB-1436099-A (GB)
Title: Device for manufacturing products from elongated sheet material
Inventor: LINDQVIST S G A
IPC: B31B23/14
Filed: 1974-08-20
Abstract: 1436099 Seaming non-metallic sheet material; cutting apparatus SGA LINDQVIST 20 Aug 1974 [20 Aug 1973] 36550/74 Headings B5K and B4B A device for forming a transversely extending series of incisions in a plastics film web 10 in the manufacture of bags or sacks comprises a carrier 112 reciprocably movable perpendicularly with respect to a support 110 for the web 10 and provided with a number of knives 113, each terminating in a pointed end 115 and having a cutting edge 116 along one of its edges, each knife 113 being disposed at an angle with respect to the plane of the support 110 and being mounted upon a pivot 118 on the carrier 112 so that its cutting angle can be adjusted in use. As shown in Figs. 4 and 5, each knife 113 is mounted on the carrier 112 by a pivot 38 engaging in an elongate slot therein. The knives 113 are interconnected by a slide 119 movable longitudinally of the carrier 112 to alter the cutting angle. Means (not shown) are provided to maintain the knives 113 in the extended positions of their elongate slots independent of any manipulation of the slide 119. A pure cutting action can be effected by forcing the knives 113 into the web and then swinging them counterclockwise by the slide 119 so that the edges 116 effect the cutting. This movement of the slide 119 may be extended to bring the points 115 above the lower edge of the carrier 112 during its return stroke. The support 110 is made either of resilient material or non-resilient material with a slot therein to receive the knives 113 during cutting. As shown in Fig. 1, the web 10, preferably a plastics film sheet folded longitudinally to have one longitudinal edge open, is advanced by rollers A, B and cut by a device 11, as described above, and welded by a device 12. The device 12 may comprise heat sealing jaws of a length equal to the width of the web or rollers urged against the web and movable thereacross to effect welding. The incisions formed by the device 11 may be arranged at an angle to the longitudinal direction of the sheet, Fig. 7, or in two parallel rows with the incisions in one row being staggered with respect to those in the other row, Fig. 9. In the latter case, every second knife is mounted on the carrier 112 by a spacer so as to be parallel to the carrier and overlap the intermediate knives. Preferably, the incisions are made before welding and a seam is subsequently provided at each side thereof.
Patent GB-778899-A (GB)
Title: Process for the production of 2-chloroacrolein and derivatives thereof
Filed: 1955-12-21
Abstract: IV (b) Heat-stable resins are formed by copoly merization of 2-chloroallylidene diacetate with vinyl chloride.ALSO:2-Chloroacrolein is manufactured by dehydrochlorinating 2 : 3-dichloropropionaldehyde with hot water in the presence of an inert volatile organic solvent immiscible with water, but in the absence of alkali.  The solvent may boil below or above 110 DEG  C., but in the former case it is advisable to vaporize the 2-chloroacrolein substantially at the rate it is formed and to use an amount of solvent greater than (preferably at least twice or three times) the amount of acrolein from which the 2 : 3-dichloropropionaldehyde is produced by an initial chlorination step (performed in the presence of the said amount of solvent). Particularly suitable solvents are chlorinated hydrocarbons and chlorinated ethers, preferably having a specific gravity greater than 1.  A preferred procedure consists in introducing 2 : 3-dichloropropionaldehyde and solvent, separately or admixed, into water at refluxing temperature, recovering a condensate from the resulting vapours containing water, solvent and 2-chloroacrolein, decanting water therefrom and, if desired, distilling the mixture of solvent and 2-chloroacrolein to recover the latter.  Alternatively the said mixture may be reacted with acetic anhydride to form 2-chloroallylidene diacetate or with HCN to form 2-chloroacrolein cyanhydrin, whilst 2-chloracrolein itself may be converted by heating to a cyclic dimer and thence 5-chloro-2-formyl-4H-pyran.  In examples: (1) acrolein dissolved in di-(2-chloroethyl) ether is treated with chlorine at 0 DEG  C. and the resulting solution of 2 : 3-dichloropropionaldehyde is introduced into boiling water containing hydroquinone as stabilizer, and an organic layer is separated from the distillate and fractionally distilled under reduced pressure; (2) the solvent in (1) is replaced by benzene; (3) the solvent in (1) is replaced by 1 : 1 : 2 : 2-tetrachloroethane, and the organic layer of the distillate is stirred with HCN and an alkylpyridine catalyst to produce 2-chloroacrolein cyanhydrin; (4) and (5) the solvent in (1) is replaced by (4) 1 : 1 : 2-trichloroethane and (5) ethylene dichloride, and in each case the organic layer of the distillate is stirred with acetic anhydride and conc. H2SO4 to yield 2-chloroallylidene diacetate; (6) 2-chloroacrolein is heated in the presence of a trace of hydroquinone, and the dimer separated from the product is distilled under reduced pressure to obtain 5-chloro-2-formyl-4H-pyran.  Additional solvents specified are di-(2-chloroisopropyl) ether, toluene, ethylbenzene, butyl ether, xylenes, nonane, carbon tetrachloride and propylene dichloride.
Patent GB-790900-A (GB)
Title: Improvements relating to cathode assemblies and a method of making them
IPC: H01J1/28
Filed: 1955-12-21
Abstract: 790,900. Making cathodes. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R. T. Dec. 21, 1955 [Dec. 24, 1954], No. 36650/55. Class 83 (2). [Also in Group XL (a)] An L-cathode comprises a cylindrical cup 6 fitting tightly within another cup 4, the space between their end-walls forming the reservoir chamber for the emissive material 5; an opening in the end wall of cup 4 is filled by the porous closure 3, which overlaps the edge 14 of the opening on both sides 9, 10, as shown, or on one side only (Fig. 2, not shown). The form of Fig. 2 (not shown) is made by placing the outer cup 4 apertured end downwards in a press mould, adding sufficient tungsten powder to form the closure 3, and then pressing and sintering. To make the form of Fig. 1, a quantity of tungsten powder is placed in the mould first, then the cup inserted, and a further quantity of tungsten powder added, so that the sintered closure will overlap both sides of the flange 14. Specification 790,899, [Group XL (a)], is referred to.
Patent GB-1518688-A (GB)
Title: Distributing frame arrangements
IPC: H04Q1/14
Filed: 1975-09-05
Abstract: 1518688 Automatic exchange systems WESTERN ELECTRIC CO Inc 5 Sept 1975 [9 Sept 1974] 36739/75 Heading H4K In a telecommunications exchange the main distribution frame (MDF) comprises a multi-stage cross-point switching network and there is provided a control arrangement which is capable of determining an exclusive path through the network and which controls an actuator device which sets up the path. Each switching stage comprises a plurality of modules 22, and the basic unit of each module is a switch 20. As shown each switch has 64 inlets and 64 outlets (i.e. 64 x 64 cross-points), and the complete MDF has a maximum capacity of 262, 144 inputs (64 modules each containing 64 switches) and the same number of outlets. The modules are assembled in racks, Figs. 4 and 5 (not shown) which in turn are assembled into an array of interconnected cabinets to form the MDF, Fig. 10 (not shown). For a given number of centre modules 23, the MDF may be expanded by adding a suitable number of outer "growth modules" (stages 1, 2, 4 and 5) when needed. Each switch 20 comprises a printed circuit board 61 having an array of pin terminals 62 extending from one or both sides thereof. The terminals are associated with conductors which enter the board through lands 63. The conductors can be interconnected with each other by interconnecting appropriate pins, e.g. by placing therebetween a connector 65. The conductors are also connected to test lands 66. In use, the switches 20 are slidably mounted in racks. When the control arrangement has determined an exclusive path between an input and an output terminal it forwards instructions to the actuator device. This latter includes a connector placement head (112) Fig. 11(not shown) for each network stage, each head being movable with respect to the associated cabinet by a coordinate drive arrangement, Fig. 10 (not shown). Under instructions from the control arrangement the heads are moved into position to slide out the appropriate switches and set up the required crosspoint connections for the exclusive path. When each connection has been made, a test is conducted on it utilizing the test lands 66 on the circuit board to which test conditions, e.g. different voltage levels, can be applied via the actuator device from a testing assembly (8, 12). The control arrangement includes a memory map in the form of a magnetic drum for storing details of all connections through the MDF.
Patent GB-840161-A (GB)
Title: Dentifrice
IPC: A61K8/26
Filed: 1958-11-14
Abstract: Dentifrices comprise a polishing agent mixture consisting of from 0.1 to 40% (preferably 0.25 to 5%) by weight of an anhydrous a -alumina having smooth-surface and rounded particles of an average size within the range of from 0.05 to 5 microns and a Moh's hardness of 9, and from 99.9 to 60% of one or more additional polishing agents having a Moh's hardness of less than 6; e.g. dicalcium orthophosphate dihydrate (preferred), other calcium phosphates, sodium polymetaphosphate, calcium carbonate, magnesium oxide, magnesium carbonate.  Optional ingredients include soap or synthetic detergents, oxygen releasers e.g. perborates, buffers, carriers and softeners e.g. glycerine, sorbitol, mineral oil, honey; buffers, binders and therapeutic agents e.g. tyrothrycin, chlorophyllins, hexachlorophene, the sarcosides and water-soluble ionizable fluoride compounds, usually in amounts of from 0.01 to 2% by weight of the total.  The dentifrice may be in the form of a toothpaste, tooth powder or solid dentifrice which may comprise from 20 to 99.5% by weight of the polishing agent.
Patent GB-846554-A (GB)
Title: Manufacture of coating compositions and textile finishes
IPC: C09D131/04
Filed: 1956-12-03
Abstract: A coating composition comprises an intimate mixture or reaction product of a polymer of vinyl acetate with from 3 to 10%, based on the weight of said polymer, of a water soluble amino aldehyde condensation product which is curable to the insoluble infusible resinous state.  The amino aldehyde condensate is preferably melamine formaldehyde, but also suitable are condensation products of guanidine, urea or thiourea with formaldehyde, acetaldehyde or propionaldehyde.  The composition can be applied to solid surfaces or textiles, and is particularly suitable for impregnating paper matting to give a floor mat.  The film is made infusible by heating to 120 DEG  to 170 DEG C.  Examples describe compositions of (1) water dispersed melamine-formaldehyde resin and polyvinyl acetate emulsion, mixed together in water; (2) polyvinyl acetate emulsion, china clay, red iron oxide, water-dispersed melamine formaldehyde resin and a polyester plasticiser.
Patent GB-449403-A (GB)
Title: Improvements relating to the capping of bottles, jars and like containers
IPC: B67B3/062
Filed: 1934-12-24
Abstract: 449,403. Capping bottles. COATES, E. R., and COATES, A. B., 126, Stranmillis Road, Belfast. Dec. 24, 1934, No. 36914. [Class 125 (ii)] A device for capping milk bottles &c., comprises a magazine 3 for caps and a slide 4 operated from a handle 16. A spring 12 mounted on a slidable rod 9 and attached to a link 10 form a lost motion mechanism between the handle and the slide 4. A stop 13 is provided, which moves with the slide 4 on the delivery stroke until it abuts the magazine 3 whereupon the links 14 pull the capping plunger downwards to force the cap into the bottle. The device may be power driven.
Patent GB-951406-A (GB)
Title: Improvements in or relating to cup dispensers
Inventor: TIERNEY TERENCE
IPC: G07F13/10
Filed: 1959-10-30
Abstract: 951,406. Discharge of cups from stacks. RANK PRECISION INDUSTRIES Ltd. Jan. 24, 1961 [Oct. 30, 1959], No. 36917/59. Heading B8S. Cups are discharged one by one from a cup dispenser which comprises a step-by-step rotating framework carrying a plurality of magazines. Each magazine supports a stack of cups, the bottom one of which slides with its rim supported on rails 2. As the magazine moves during one step of the framework, the bottom cup 7 slides off the rails (as shown) and the next-bottom cup 5 is caught at its rim by fixed flanges 3, 4, so that the stack is supported by flanges 3, 4, whilst the bottom cup 7 is merely supported frictionally by nextbottom cup 5. Additionally tooth 9 on the moving framework engages and depresses spring-biased plunger 11 so that flange 12, which is carried by plunger 11, moves downwards to engage the rim of cup 7 and so discharge it.
Patent GB-339484-A (GB)
Title: Improvements relating to the manufacture of moulded glassware
IPC: C03B11/06
Filed: 1929-12-03
Abstract: 339,484. Chance Bros. & Co., Ltd., and Brown, R. Dec. 3, 1929. Pressing.-A process for the production of moulded glassware, consists in pressing each article in two or more stages, the shaping of the major part of an article being effected in a single-piece or equivalent mould, the subordinate part or parts being shaped in a separate segmental mould or moulds. The formation of a dish cover with a " sunk " knob is shown in the drawings. The greater part a, Fig. 1, of the cover is made by pressing the glass between a plunger c and a single-piece body mould d having a central inset d<1> which forms a projection n on the dish cover. When the glass has been pressed and the plunger c has been raised, the mould body d is lifted off its base, to which the part d<1> is fixed, and transferred to a new base k, Fig. 3, on which a hinged mould e<1> of the usual type is mounted. This mould is closed on the projection n of the dish cover, and a plunger is then lowered to press the projection n to the form of a knob b.
Patent GB-1368092-A (GB)
Title: Process for reducing the alkali content of cement clinker
IPC: C04B7/60
Filed: 1971-08-26
Abstract: 1368092 Cement NORCEM AVD DALEN AS 26 Aug 1971 [26 Aug 1970] 36942/71 Heading C1H The alkali content of cement clinker is reduced by washing with water during or after milling to cement and optionally with the addition of gypsum. A coarse fraction can be separated off and then further milled. S- containing compounds can be added to the raw charge so that the alkalies are transformed into soluble sulphates during burning. Further washing with a liquid which does not react with cement and which can be evaporated and recovered can be made. Retarders can be added to the wash water.
Patent GB-1364233-A (GB)
Title: High performance solid state amplifier
IPC: H03F3/45
Filed: 1971-08-06
Abstract: 1364233 Differential transistor amplifiers ANALOG DEVICES Inc 6 Aug 1971 [6 Aug 1970] 37170/71 Heading H3T A differential amplifier comprises a pair of input transistors 14, an output amplifier 22 and a differential transistor feedback amplifier 30, 32, the transistors of the differential amplifiers each having a constant current supply controlled by the feedback signal in a sense to maintain the current through the transistors constant, a gain setting resistor 15 being connected to the input amplifier to divert current from one transistor to the other. The current in the gain setting resistor and thus the gain is proportional to the input voltage and inversely proportional to the resistance value. A similar resistor 31 connected to the feedback amplifier further controls the gain. A detailed circuit is described with reference to Fig. 2 (not shown).
Patent GB-840038-A (GB)
Title: Improvements in or relating to agricultural implements
IPC: A01D78/10
Filed: 1956-12-10
Abstract: 840,038. Agricultural implements. LANG, A. Dec. 10, 1956 [Dec. 16, 1955; April 13, 1956; April 19, 1956], No. 37606/56. Classes 6(1) and 6(3). Tools for manure spreading, fertilizer distribution, harrowing, earth levelling, grass mowing, haymaking and for cutting potato tops are mounted in separate exchangeable rings 6 secured to a rotatably mounted wheel flange 5 driven from a tractor power shaft. As shown the flange 5 forms part of a conical cover 4 rotated by gearing in a box 3 which is pivotally arranged in a stirrup 8 coupled to a tractor towbar 9. The cover 4 may be tilted in a fore-and-aft direction by means of a screwed spindle 15, bell crank lever 17 and link 19. The cover 4 is supported by one or two wheels 2 mounted on a freely rotatable spindle 1 vertically adjustable by means of hand crank 14. A baffle plate 22 is mounted on guide rod 26 which is vertically adjustable on the stirrup 8. As shown in Fig. 24, the stirrup 8 is detachably connected to a cross-beam 56 provided with two landwheels 62<SP>1</SP>, 62<SP>11</SP>. In a modification a seat is provided on the stirrup 8 and the stirrup is connected by a universal joint to a two-wheeled tractor. As shown in Fig. 1, the ring 6 is provided with spring teeth 7 for spreading manure, the baffle plate 22 acting to break up the manure thrown against it by means of the teeth 7. For fertiliser distribution material is fed into the cover 4 and is distributed by blades mounted in a ring 6. Triangular teeth are mounted in a ring 6 for use in grass cutting. For cutting potato tops spiked teeth are mounted on a ring 6 and stationary members are fitted on the machine for raising the tops prior to cutting. Swaths of hay or green fodder may be formed by providing thin teeth on a ring 6 and a plate for limiting the scattering of the crop. A toothed wheel may be mounted at one side by means of an arm attached to the stirrup 8 to feed material to the ring 6, the wheel rotating by contact with the ground. For protection against the rotating teeth a circular guard may be provided and attached to the stirrup 8.
Patent GB-1112237-A (GB)
Title: Improvements relating to hose clips
IPC: F16L33/08
Filed: 1965-09-03
Abstract: 1,112,237. Hose clips. G. L. NIGON. 3 Sept., 1965 [23 March, 1965], No. 37734/65. Heading E2B. A hose clip comprises a strip B to encircle the hose, the strip having obliquely arranged slots 21 at one end portion thereof and an actuating device A mounted on the strip at its other end portion, which actuating device comprises a worm actuating member having a threaded portion to engage the slots in the strip and an operating head 33 at one end portion spaced axially from the thread and which device further comprises a housing C in which the worm actuating member is rotatively supported and a plate Q by which the device is mounted on the strip, the housing having an inwardly directed rib 44 to project between the thread and the head to assist axially to locate the worm actuating member in the housing and the housing further providing a partcylindrical shroud 46 for the head. This construction prevents a screw driver from slipping from a slot 37 in the head. The housing and plate are spot welded together and the actuating device is detachably fastened to the strip by providing the strip with a hooked tab 90 which engages a hole 74 in the plate. The strip is also provided with a projection 95 which engages the other end of the plate.
Patent GB-1507630-A (GB)
Title: Oxidative dehydrogenation of olefins
IPC: C07C11/12
Filed: 1976-09-13
Abstract: 1507630 Oxidative dehydrogenation GOODYEAR TIRE & RUBBER CO 13 Sept 1976 [18 Sept 1975] 37752/76 Heading C5E [Also in Division B1] Hydrocarbons are oxidatively dehydrogenated in the presence of a catalyst comprising (i) Mo, (ii) Cr and (iii) Co and/or Zn, all the metals being in combination with oxygen, the catalyst being calcined before use for at least one hour at 400-1100C. Suitable starting materials are butene-1, butene-2, 2-methyl butene-1, 2 methylbutene-2, 3-methyl-1-butene, n-pentene, 2,3,-dimethyl-1-butene; 2,3,-dimethyl-2-butene, 2-methyl- 1-pentene, 2-methyl-2-pentene, 4-methyl-2-pentene, 3-methyl-1-pentene, 3-methyl-2-pentene, 3- ethyl-1-butene, ethylbenzene and isopropylbenzene. The catalyst may be impregnated on a support, e.g. Al 2 O 3 . Air may be the source of O 2  and a diluent such as steam may be present. The catalyst may be modified with an alkali or alkaline earth metal oxide or hydroxide in amount 0À1-5 wt. percent.
Patent GB-1123029-A (GB)
Title: Improvements relating to lawnmowers
IPC: A01D57/01
Filed: 1965-09-07
Abstract: 1,123,029. Lawn mowers. B. WHITMORE. 4 Oct., 1966 [7 Sept., 1965], No. 38264/65. Heading A1F. A rake in or for a lawnmower comprises a number of teeth carried by a support, each tooth having a free end for engaging flattened grass, and being mounted for sliding movement on the support so that, if an obstruction is met, the free end of the tooth can move towards the support. As illustrated the rake is positioned between a front roller and the cutter of a lawn mower, and comprises tines 18 slidably positioned in vertical apertures in a tube 15 the ends of which receive screw members 16 which clamp the rake between side walls of the lawn mower. Screws 19 will act as stops. The tines may be lengths of metal spring cable (as shown) or synthetic plastics tubing.
Patent GB-1058048-A (GB)
Title: Improvements in or relating to bucket-wheel excavators
IPC: E02F3/18
Filed: 1965-09-08
Abstract: 1.058,048. Bucket wheel excavators. MASCHINENFABRIK BACKAU R. WOLF A.G. Sept. 8, 1965 [Sept. 10, 1964], No. 38467/65. Heading E1F. In a bucket wheel excavator the superstructure thereof is connected to the upper ring of a mobile base-mounted turntable by three connections, two of which form a substantially horizontal pivotal axis spaced from the centre of the turntable for pivotal movement of the superstructure relative to the upper ring, whilst the third connection allows vertical sliding movement to occur between the superstructure and said ring in a plane at right angles to said axis.