baber/WOPTO huggingface dataset:
Patent GB-1050042-A (GB)
IPC: B29C48/695
Abstract: 1,050,042. Spontaneously crimpable composite filaments. SOCIETE RHODIACETA. Feb. 10, 1965 [Feb. 14, 1964], No. 5841/65. Heading B5B. Spontaneously crimpable composite filaments are produced by continuously melting a thermoplastic linear polymer, dividing the resulting melt into at least two streams, subjecting each stream to a different thermal treatment, and extruding the streams contiguously as one or more composite filaments. At least one characteristic, for example viscosity, molecular weight or molecular weight distribution, which affects the shrinkage properties of the polymer, changes at elevated temperature, notably that temperature employed in the melt-spinning process. The melt is preferably divided into two streams. The thermal treatment may be of different durations, for example, by having different path lengths for each stream to traverse, and/or at different temperatures. The polymer is exemplified as polypropylene, but may be any thermoplastic linear polymer which can be melt-spun. The filaments, as such or in the form of a multifilament yarn, may subsequently be heat-treated to a temperature at which a crimp develops spontaneously, i.e. by relief of internal stress and not by mechanical deformation, for example, by means of a hot stretching operation or by a steam or boiling water treatment without applied tension. The filaments may be spun from apparatus comprising a continuously operating melting device provided with means for the supply of polymer and means for expelling molten polymer, at least two ducts which communicate at one end with the output of the melting device and at the other end with a supply chamber of a spinneret and which are adapted to cause polymer melts passing therethrough to be given different thermal treatments, and a compartmented supply chamber each compartment of which is connected to the outlet orifice of a particular heating duct and communicates separately with the orifice, or with some or all of the orifices, of the spinneret. The ducts may differ in length and/or may be provided with separately controlled heating means. Each duct is preferably provided with a metering pump at or near its input end. As illustrated in the Figure, polymer is supplied by hopper 1 to melting chamber 2 heated by elements 3 and is passed by screw 4 from the output end 12 of the melting chamber via pumps 7 and 7<SP>1</SP> to ducts 5 and 6 which are of different lengths and which are heated by elements 8 and 8<SP>1</SP>. Each duct leads to a cell 9 of a filtration unit and communicates via channel 13 with one compartment 10 of the supply chamber of spinneret 11.
Patent GB-1053202-A (GB)
IPC: B60R22/38
Abstract: 1,053,202. Safety harnesses. TELEFLEX PRODUCTS Ltd. June 11, 1963 [June 18, 1962], No. 2343/62. Heading A3V. A safety harness 26 is wound on a spring returned reel 24, and an inertia locking device comprises two semi cylindrical interia members 32 which are held together by springs 40, Fig. 3 (not shown), and thereby rotate with the reel 24. Cam recesses 42 in the reel 24 and 36 in the inertia members 32 accommodate rollers 44 and on angular acceleration of the reel 24 the members 32 move apart under centrifugal force and the rollers move round with the reel and urge the friction elements 34 on the inertia members 32 against the housing 16. In the embodiment of Fig. 7 (not shown) the inertia members are pawls 60 mounted on pivots 62 with teeth 70 which are held out of engagement with teeth 72 in the housing by means of compression springs 74. On sufficient acceleration of the reel 24 the pawls 60 are urged outwards by centrifugal force against the force of the spring 74 to lock the reel.
Patent GB-1054721-A (GB)
IPC: H01H73/60
Abstract: 1,054,721. Thermal switches; mechanical switches without quick action. CALOR APPAREILS ELECTRO - DOMESTIQUES. April 6, 1964 [Feb. 6, 1964], No. 14022/64. Heading H2B. A device for protecting the motor windings 18, 19, of, e.g. an electric razor, comprises a bimetal strip 1 carrying insulatedly a contact 5 co-operating with a fixed contact 7 (Fig. 1, not shown), a heating resistance wire 14 wound on an insulating sleeve 8 on the strip 1 causing movement of the strip with overcurrent to break contacts 5, 7 and consequently the circuit to the windings 18, 19, of the razor and a voltage selector button 26 (Figs. 4, 5, not shown) carries sectoral contacts 25, 28, for connecting the two windings 18, 19 in parallel or in series, and is mounted in the casing wall 20 of the razor for angular movement between two positions, Fig. 3 (Fig. 5, not shown), so that the razor operates at either of two voltages.
Patent GB-1095296-A (GB)
Abstract: 1,095,296. Acylated lyserganines. ELI LILLY & CO. March 8, 1965, No. 9790/65. Heading C2C. The invention comprises compounds of formula wherein R<SP>1</SP> is hydrogen or a C 1-3  alkyl, allyl or propargyl group, R<SP>2</SP> and R<SP>3</SP> are hydrogen atoms or C 1-3  alkyl, phenyl or halophenyl groups, and R<SP>4</SP> is hydrogen or halogen or a C 1-3  aliphatic hydrocarbon, benzyl or halobenzyl group, or R 3  and R 4  in combination form a trimethylene or tetramethylene group, acid addition salts thereof, and their preparation by reaction of dihydrolysergic acid with an alkyl, allyl or propargyl halide to give the corresponding 1-hydrocarbonyl - dihydrolysergic acid, converting this to its methyl ester, converting this to its hydrazide, reacting this with sodium nitrite to give the optionally isolated azide, heating a solution of this to produce the isocyanate in situ and reacting this with pyrazole or a derivative thereof. 3 - Methyl - 4,5 - trimethylene- or tetramethylene-pyrazoles are prepared by reaction of the appropriate 2-acetyl-cycloalkanone with hydrazine sulphate. The compounds of the invention have antiulcer properties and may be used in pharmaceutical compositions in combination with a carrier.
Patent GB-1225394-A (GB)
IPC: A63H33/04
Filed: 1968-08-23
Abstract: 1,225,394. Assembly toy set. YONEZAWA TOYS CO. Ltd. 23 Aug., 1968, No. 40393/68. Heading A6S.  An assembly toy set comprises a perforated baseboard 1 having a channel member 2 with a snap groove 3 along at least one edge thereof, so that in use another baseboard having at least one channel member with a snap groove may be connected coplanarly with the first baseboard, and a piece which is provided at its underside with a protuberance of such a size and shape as to be a rigid fit when inserted into a hole of the baseboard, and is provided in one surface with a hole which is of such a size and shape as to enage a protuberance on a different piece. The toy set may have elongate or curved shaped pieces, tubular pieces, disc pieces or regular tetragonal pieces. The set may comprise the baseboard and pieces 7 forming a rail on which a toy locomotive (which may be electrically driven) may run.
Patent GB-1225496-A (GB)
IPC: H01H15/06
Filed: 1967-06-22
Abstract: 1,225,496. Push-button-retractive switches; switches held set and freed mechanically. PAGE ENG. CO. (SUNBURY-ON-THAMES) Ltd. 21 June, 1968 [22 June, 1967], No. 28818/67. Heading HlN. Plunger 14 is given a " click action " by a detent which comprises at least three coplanar balls 36 movable along equally inclined radial holes 35 in the plunger to snap into one or more annular grooves 37 in the walls of the plunger guide 11, the balls being urged radially outwards by a conical cam member 38, 39 mounted within the plunger 14 and urged into engagement with the balls 36 by a spring 40. The plunger 14 is biased upwardly by a spring 29 acting between a contact housing 25 and a disc 30 secured to the plunger. The plunger 14 has a metal shaft carrying P.T.F.E. bushes 18 between which are loosely mounted selfcleaning silver contact rings 20 which are movable into bridging engagement with pairs of diametrically opposed fixed contact blades 16, 17. Four equispaced fixed contacts are provided, each being separated from its neighbour by a longitudinally extending radial projection of contact housing 25. The relative strengths of springs 29, 30 may be adjusted so that plunger 14 is retained in its depressed position. The contact arrangement may be a two-pole normally open or closed, or a makebefore-break or break-before-make changeover arrangement. A centre-off position of the plunger may be provided. The plunger may be directly operated or through a rocker. Four switches of the type shown may be actuated by a rocker movable in any one of four directions.
Patent GB-1225972-A (GB)
IPC: H01H35/26
Filed: 1967-02-14
Abstract: 1,225,972. Thermal switches ; latching switches. DIAMOND H CONTROLS Ltd. 13 Feb., 1968 [14 Feb., 1967], No. 47488/70. Heading H1N The description is the same as for Specification 1,225,971, but the claims are directed to a thermostatically controlled electric switch comprising a thermally responsive device 12, an operating member 20 positioned by device 12, a spring 22 against which member 20 bears, a plate 19 which pivots about two pivot points upon movement of member 20, which has an aperture 21 through which member 20 passes, and to which spring 22 is secured, and an electric switch arranged to be operated by plate 19, spring 22 being a leaf-spring secured at its ends to plate 19.
Patent GB-1226851-A (GB)
IPC: A45C13/26
Filed: 1968-04-22
Abstract: 1,226,851. Spring pivotal connection. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 22 April, 1968 [25 April, 1967], No. 18824/68. Heading E2F. [Also in Division A4] The pivoted carrying handle 1, Fig. 2, of a cabinet 7 has an integral tubular pivot pin 3 containing symmetrical recesses 19. A spring 11, Figs. 2, 5 comprises four or more symmetrical limbs two of which 13 are bent outwards and hooked at 17 while another two 21, 23 are flattish arms 21 widening into annular segments 23. The hooked limbs are pressed into the hollow pivot to engage in the recesses and the segment limb press on the inside of cabinet wall 7 to retain the pivot pin in the circular wall aperture 5. In another embodiment, the hooks are inturned to engage the recesses from outside the pivot with the limbs lying in longitudinal groups. A spacer ring 9 is positioned around the pivot pin between the handle or wall.
Patent GB-1227371-A (GB)
IPC: A22B3/06
Filed: 1968-04-11
Abstract: 1,227,371. Electrically stunning animals. SCHLUDERBERG-KURDLE CO. Inc. 11 April, 1968, No. 17739/68. Heading A1M. Animal stunning apparatus comprises a pair of electrodes 20, 21 for application to the head and back of an animal, a normally inoperative voltage source 40, variable between a tranquilising voltage and a stunning voltage, and a motor 9 driving a conveyer (1) for delivering animals to the applicator 14 prior to bleeding. With the switch 39 in the closed position the motor 9 is in operation while the switch 68 is open and the voltage source 40 is inoperative. As the animal approaches the end (5) of the conveyer (1) the operator momentarily closes push button 22 operating the steprelay 77 which opens switch 39 and closes switch 68. Thus the conveyer is stopped and the autotransformer 41 is energized. The operator applies the applicator 14 to the animal which receives a 50 volt tranquilising voltage via the isolating transformer 42 and the adjustable autotransformer 43. When switch 23 is momentarily closed the relay 135 is activated closing switches 131 and 134 and opening 132 and 133. The switch 134 completes a holding circuit to maintain the relay in this position. The switch 131 actuates, via switch 110, a reversible motor 100, which, during one and half seconds advances the slider 64 to the 170 volt position and, via the shaft 102, rotates the cams 103-106 clockwise through 180 degrees to the position of Figs. 5-5a (not shown). The consequent opening of switch 110 stops motor 100, the closing of switch 107 actuates a timer motor 123. After half a second, switch 121 is momentarily opened, de-activating the relay 135 which breaks the circuit to the timer motor 123 and actuates the motor 100 in the opposite direction, via switches 132 and 113, hence reducing the output voltage and rotating the cams to their original position. During this the relay 77 is re-activated, via switch 116, cutting off the voltage supply and re-starting the conveyer motor 9 for supplying the next animal.
Patent GB-1238180-A (GB)
IPC: B01D71/50
Filed: 1968-09-12
Abstract: 1,238,180. Microporous membranes. AMICON CORP. 12 Sept., 1968 [21 Sept., 1967], No. 43335/68. Heading B5B. An integral, anisotropic, microporous membrane of a synthetic organic polymer which absorbs less than 10% water at 100% R.H. and 25 C. has a surface layer having a plurality of pores of diameter 1-1000 mÁ and preferably a thickness of 0À1-5À0 Á, and a support layer of sufficiently large pore structure that it provides no significant overall resistance to hydraulic flow through the membrane. The polymer may be 5-90% crystalline with a Tg of at least 20 C. The membrane is made by preferentially contacting one side of a cast film of an organic solution of the polymer with a diluent highly compatible with the organic solvent and sufficiently incompatible with the polymer to cause immediate precipitation thereof, and maintaining the membrane thus formed in contact with the diluent until substantially all of the solvent has been replaced by the diluent. Many polymers are listed; these are preferably polar. The following are exemplified; poly-(bisphenol A carbonate) in dimethylformamide (DMF), PVC in DMF*, a modacrylic polymer in DMF* and a polysulphone in N-methyl-2- pyrrolidone. The diluent is water. A " solution modifier " may be added, which alters the solvating effect of the diluent or organic solvent, e.g. ZnCl 2  is added to the solutions * above.
Patent GB-1238301-A (GB)
IPC: B65H54/36
Filed: 1967-04-18
Abstract: 1,238,301. Winding packages of filamentary material. WILLIAM AYRTON & CO. Ltd. 10 July, 1968 [18 April, 1967], No. 17714/67. Heading D1J. A yarn package winding mechanism in which a yarn traverse guide 14 is maintained spaced from, but in close proximity to, the surface of the yarn package 11, is characterized in that the mechanism includes means 17 for blowing a fluid, for example air, onto the surface of the yarn package to produce an air cushion against said surface, and means responsive to the air pressure thereby generated and operative to move the traverse guide in a manner maintaining its spacing from the surface of the package. In Fig. 1 the guide 14 and a jet 17 are on a common cam box 12 rockable about its shaft 13. The pressure of the aforesaid cushion is transmitted to one side of a piston 20. The piston has a bleed hole 20a and the cylinder 21 an adjustable bleed 21a. The piston rod 19. is coupled to an arm 18 of the cam box 12. The pressure on one side of the piston 20 is a function of the back pressure from the air cushion between the nozzle 17 and the package 11; and the pres sure on the other sideof the piston is a function of the bleed passages 20a and 21a. These two functions jointly maintain the guide 14 at a desired spacing from the package 11. In Fig. 2 (not shown) the cam box 12 is turned by an electric motor controlled by a diaphragm actuated switch (23), this switch being connected by a tube (24) to the air cushion between the jet 17 and the package 11. In Fig. 3 (not shown) the nozzle 17 has a shoe (17a) to increase the area of the air cushion and thereby provide a back pressure more responsive to changes in the spacing of the guide 14 relative to the package 11.
Patent GB-1252339-A (GB)
IPC: H04Q3/00
Filed: 1969-07-17
Abstract: 1,252,339. Automatic exchange systems. SIEMENS A.G. 17 July, 1969 [18 July, 1968], No. 36023/69. Heading H4K.  In a multistage switching network comprising a plurality of subsections each having their own control circuits, a plurality of path finders are provided for the whole network any one of which path finders can be seized for use by the control circuits of the inlet and outlet subsections pertaining to a call. Obviously simultaneous calls in different pairs of subsections can be handled without the possibility of double connections arising. The inlet and outlet subsections are connectible in respective selector switches to the path finders. The latter are of the " long-reach " type disclosed in Specifications 1,029,051 (memory map) or 897,677 (guide wire simulating network), the last being modified slightly as in 897,676 when, for a certain destination, outlets are available in a plurality of subsections. The control circuits comprise devices for monitoring the inlets and outlets and for receiving destination data and also devices for setting-up a chosen path. The latter devices are always provided on a per subsidiary network basis although the other mentioned devices may be combined into a single circuit for all the inlets and into another circuit for all the outlets.
Patent GB-1252641-A (GB)
IPC: B25H1/00
Filed: 1969-02-25
Abstract: 1,252,641. Stand for surface plates. W.B.J. ENG. Ltd. 12 Nov., 1969 [25 Feb., 1969], No. 10018/69. Heading B4X.  A stand for receiving a surface plate has jacks (not shown) located in tapped holes 14 for levelling the plate and is characterized by each jack being positioned at the upper end of a load carrying leg viz. legs 10 and leg 12, non-load carrying legs also being provided. Legs 10a (non- load carrying) have bolts (not shown) in tapped holes 14a which engage the plate, after it has been levelled, to prevent rocking movement. The bolts and jacks have lock nuts for locking them in position. In the base of each leg there are levelling bolts to enable the stand to be placed on a non-level surface. Preferably an odd number of jacks should be used.
Patent GB-1252925-A (GB)
IPC: H01M50/533
Filed: 1968-02-13
Abstract: 1,252,925. Casting [composite battery plate assemblies. ELECTRIC POWER STORAGE Ltd. 12 Feb., 1969 [13 Feb., 1968], No. 6972/68. Headings B3A and B3F. [Also in Division H1] A jig for use in making battery plate assemblies comprises a box for holding one or more stacks of plates and separators and means for aligning the plates and separators and mounted above the box a pair of comb-like bars 30, 31 (Fig. 7) each of which can be moved inwards to co-operate with a back-bar 32, 33 carrying shaped recesses 67-68 to form moulds (Fig. 6) for the combined plate straps and intercell connectors 70. The teeth of the combs pass between the lugs of the plates 13 and fit closely around them to form the bottoms of the moulds. The straps or combined straps and connectors can be formed in the moulds by casting, by fusing together the plate lugs or by placing precast components, with slots in the bottom to receive the lugs, in the moulds and burning them to the lugs.
Patent GB-1257949-A (GB)
IPC: F16K11/07
Filed: 1969-11-04
Abstract: 1,257,949. Making spool valves. D. STEMPEL A.G. 4 Nov., 1969 [16 Nov., 1968], No. 95317/69. Heading B3A. [Also in Division F2] A spool valve has a plurality of bushes 4 screw-threaded into a bore 3 of the housing 1 and accurately positioned and secured by adhesive to form seats for a spool 13 to control flow from supply and relief ports 10, 11. The spool is actuated manually, electro-mechanically or hydraulically or pneumatically via spring- loaded plungers 23 at both ends. The housing 1 is closed at both ends by bolted caps 22 and is secured to a mounting plate 18 with seals 19 therebetween. A threaded half-shell may be used accurately to space the bushes which are afterwards adhesively coated and threaded into the bore 3 by an expanding mandrel. In an alternative method different length mandrels may be used to screw the bushes into the bore; machined faces on the easing and mandrel limiting the movement of the mandrel into the bore.
Patent GB-1258418-A (GB)
IPC: A01D34/66
Filed: 1968-12-31
Abstract: 1,258,418. Mowing machines. C. VAN DER LELY N.V. 31 Dec., 1968 [4 Jan., 1968; 6 June, 1968], No. 61937/68. Heading A1F. Rotary mowing-machines are fitted with spring steel blades having a thickness not greater than 3 mm. for increased resistance to breakage and damage. A mowing-machine (Fig. 1) comprises at least two drums 5 rotating about vertical shafts 4 on a beam 3 connected to a beam 2 which is turnable between the limbs of a bracket 14 about a horizontal shaft 13. The bracket 14 is attached to a coupling member 15 connected to the threepoint linkage of a tractor 16, and the drums 5 are driven from the tractor by way of double pulleys 26, 28, gearbox 16A and pulleys 20, 22, (23), 25. Each drum has six oblong blades 7 held by pins 9 and stops 10, or alternatively trapezoidal blades held by two pins. At the end. of the beam 3 is a support 31 which engages the ground during operation. The machine of the second embodiment (Figs. 5, 6) comprises a hollow beam 47 which contains a series of blades 49 driven by pinions 48 A-J, 46A-J from bevel pinions 41, 42 in the driving mechanism 39 which receives power from the tractor by way of a telescopic shaft 45 and pulleys 40. The hollow beam 47 has a portion 53 which engages the ground and is pivotable on a shaft 52 allowing the machine to be raised by chains 50, 51 for transport purposes. Each blade 49 is individually attached to a portion 68 of a shaft 58 and held in place by a circlip 62 and seal 63, the blade being covered by a hood 64. The blades can also be secured to the shaft 58 by means of a compression spring 66 and a nut 65, so that the blade can deflect upwardly upon striking a hard obstacle, in addition to the blade's inherent resilience. Alternatively the cutting elements may be of a plastics material having a blade embedded, or slidably carried, in it. A further embodiment of the cutting element (Fig. 12) comprises two spiral blades 72, 73 which give resilient deflection in almost any direction.
Patent GB-1258750-A (GB)
IPC: C07C17/156
Filed: 1968-12-09
Abstract: 1,258,750. Liquid/gas reactor. LUMMUS CO. 9 Dec., 1968 [7 Dec., 1967], No. 30424/70. Divided out of 1,258,749. Headings B1F and B1R. A liquid/gas contact reactor 10 for the production of vinyl chloride is divided into sections by gas seals 103 which allow the downward flow of liquid but prevent the upward flow of gas. The seal is formed by the downward flowing liquid in containers 108 into which depending portion 105 dips. Liquid may be recycled up pipe 11 by lift gas from pipe 151, which gas may be used to heat or cool 'the liquid. 146 is a heating element. The apparatus may be used for the process disclosed in Specification 1,258,749 (see Division C2).
Patent GB-1259150-A (GB)
IPC: F01C19/04
Filed: 1969-11-12
Abstract: 1,259,150. Rotary-piston internal-combustion engines. DAIMLER-BENZ A. G. Nov.12, 1969 [Nov. 13, 1968], No.55407/69. Heading F1F. A metal, e.g. cast iron, sealing strip at a corner between the sides of a multi-sided piston of a rotary-piston I. C, engine of epitrochoidal design, includes a sealing edge made of a highly refractory ceramic material with a porcelain like body and a high alumina content, e.g. 95% alumina. The sealing edge may be semicylindrical in cross-section or an insert in a groove formed in the sealing strip and secured to the sealing strip by adhesive, soldering or brazing.
Patent GB-1264967-A (GB)
IPC: B03C1/08
Filed: 1969-10-01
Abstract: 1,264,967. Magnetic separators. C. R. BALTAR. 1 Oct., 1969, No. 48367/69. Heading B2J. A magnetic classifier comprises a vibrating tray 4 situated above an electromagnet 10 having a semi-toroidal core 5, a rotatable yoke 6 being mounted above the tray and arranged to deposite the magnetic particles into containers 11. Material is fed onto the tray from a hopper 8 and non-magnetic particles are deposited in a container 3. The tray 4 is vibrated by means of an impulse generator 9 and devices are provided for independently modifying the period of oscillation and the displacement of the tray. The yoke may be replaced by a counterpole and the magnetic material may be removed by means of endless belts. Two vibrating plates may be used each being mounted above one of the poles of the electro-magnet.