baber/WOPTO huggingface dataset:
Patent GB-878652-A (GB)
Title: Ethylene oxidation process
Filed: 1957-12-12
Abstract: Ethylene is oxidised to ethylene oxide in a two-stage process, in the first stage of which a highly turbulent rapidly-moving stream of a reaction mixture comprising ethylene and an oxygen-containing gas, containing more than 4% by volume of ethylene and more than 7% of oxygen, is contacted with a silver-alkaline earth metal alloy catalyst in an amount of 5 to 9 ounces of catalyst per square foot of catalyst surface, at a temperature in the lower part of the range 220 DEG -290 DEG C. and at a pressure in the range of 100-200 p.s.i.g., for a time sufficient to convert 20-40% of the ethylene; ethylene oxide is removed from the effluent, a portion of the residual gaseous mixture is recycled to the first stage and the remainder of the residual gaseous mixture is contacted as a highly turbulent rapidly moving stream with another body of the catalyst at a temperature in the upper part of the specified temperature range and at a pressure in the specified pressure range higher than that in the first stage, for a time sufficient for the conversion of 90-95% of the ethylene in the second stage, the temperature of the catalyst in both stages being kept substantially constant by passing a coolant through the interior of the catalyst mass in both stages.  The temperature in the first stage is preferably in the range 225 DEG -234 DEG C. and the pressure substantially 150 p.s.i.g. and in the second stage the preferred temperature is 275%C. and the pressure 175 p.s.i.g.  The oxygen may be used in the process as air, or oxygen in admixture with one or more inert gases.  The preferred velocity of the stream of reaction mixture contacting the catalyst in each stage is in the range 20-50 ft/sec.
Patent GB-891622-A (GB)
Title: An improved resilient bush
Inventor: TURNBULL JOHN WHITTINGTON
IPC: F16F1/393
Filed: 1957-12-13
Abstract: 891,622. Resilient bushes. AUTO DEVELOPMENT (MANUFACTURERS) Ltd. March 12, 1959 [Dec. 13, 1957], No. 38739/57. Class 108(3). A resilient bush comprises an outer tubular member 1 and inner tubular members 2, separated axially by a space 4, the space between the inner and outer members being filled with rubber, or rubber-like material. The rubber is in the form of three rings 5, 6 and 7. The upper half of Fig. 3 shows one embodiment whilst a second embodiment is shown in the lower half. The rubber rings are bonded to the adjacent tubular members. In a further embodiment the rubber is all in one piece, and may, or may not, be bonded to the tubular members. In the last embodiment the inner and outer tubular members are supported co-axially and the rubber sleeve is moulded in the space between them. Before the rubber is poured into the gap, a flexible vulcanized rubber ring is positioned in the axial gap 4 to prevent rubber being moulded between the inner ends of the tubular members 2. After the moulding and bonding process has been completed the vulcanized rubber ring is removed by hooking it through one of the inner tubular members 2. When the inner tubular members 2 are urged towards one another, a compressive stress is set up in the rubber. The degree of compression may be controlled by positioning a split ring in the space 4.
Patent GB-1446723-A (GB)
Title: Radio relay systems
IPC: H04B17/00
Filed: 1973-08-16
Abstract: 1446723 Radio signalling SIEMENS AG 16 Aug 1973 [25 Sept 1972] 38763/73 Heading H4L A radio relay system is tested by first modulating a constant auxiliary frequency on to a measuring signal at the transmitting end and transmitting it to the receiving end to make a transit time measurement at the receiving end and then, by remote control from the transmitting end, likewise sending a constant auxiliary frequency in turn from each relay station to the receiving end to measure the transit time between each relay station and the receiving end.
Patent GB-341238-A (GB)
Title: Fastenings for attache cases, trunks, bags, portfolios, and the like
IPC: E05B65/50
Filed: 1929-12-19
Abstract: 341,238. Hasp locks. CHENEY, C. W., Factory Road, Soho, Birmingham. Dec. 19, 1929, No. 38870. [Class 44.] A hasp fastening of the kind disclosed in Specification 325,667, [Class 44, Fastenings, Lock &c.], has a bolt end f<2> reversely inclined in two directions, while the eye is deeper at the ends h<3>, h<4> than at the centre h<5>. The bolt is engaged by a spring j and key-operated tumbler l.
Patent GB-1182701-A (GB)
Title: An Apparatus for Producing Electrical Pulses at a Frequency Proportional to the Magnitude of an Applied Force
IPC: G01R17/08
Filed: 1967-08-24
Abstract: 1,182,701. Force balance systems. ARCA PREMONCONTROLE S.A. Aug.24, 1967 [Sept.28, 1966], No.38983/67. Heading G1N. In a force balance system, a signal in the form of pulses, the frequency of which is proportional to the magnitude of a force tending to deflect the balance beam, is produced from the feed back circuit of the system. If Fig. 1, deflection of a beam 4 pivoted at 5 produces a change in inductance of a coil 12 connected to an oscillator 13, a ferrite block 6 fixed to the beam moving with respect to the coil 12. The resulting output of the oscillator is a varying direct current I which is fed to a coil 7 on the beam via a lead 17, which coil 7 cooperates with a permanent magnet 8 to restore balance. A circuit for producing pulses in dependence upon the magnitude of restoring current includes a pulse generator 16 comprising a capacitor 24 Fig. 2, which is charged up by the feedback current I in lead 17 and is discharged through a uni-junction transistor 25 when the voltage at the base thereof exceeds a predetermined value V. The frequency of pulses thus produced is given by formulae f = I/CV. The output of the pulse generator may be fed to a pulse shaping or a frequency multiplying circuit 21. Capacitor 19 is for pulser smoothing and potentiometer 20 is for calibration purposes. The balance beam may be coupled to a Bourdon tube 1 to measure pressure, as shown in Fig. 1, or to other types of transducer responsive to a physical variable.
Patent GB-1012594-A (GB)
Title: Improvements in convertible article of furniture
Inventor: LAEMMLE DAVID CONRAD
IPC: A47C17/23
Filed: 1963-10-03
Abstract: 1,012,594. Bed-settees. BEBRY BEDDING CORPORATION. Oct. 3, 1963, No. 39007/63. Heading A4J. The foldable frame 11 of a bed settee of the kind described in Specification 932,526 has the link 44 pivoted at 57a to an intermediate link 52 of the chain of links mediate link 52 of the chain of links 50-52, the links 44, 52 being contoured and arranged for elevating and swinging the foldable frame 11 and its leg members 40, 41 over the front panel 17. The link 44 is formed as a bell crank and the pivot pin 57a is separate from the pivot pin 57 joining the links 51, 52. The front panel 17 is formed as a single integral member. Reference has been directed by the Comptroller to Specification 932,526.
Patent GB-1487222-A (GB)
Title: Halogenated carbonates and flame resistant polymeric compositions containing them
IPC: C08L69/00
Filed: 1974-09-06
Abstract: 1487222 Halogenated carbonates as flame retardants CHEMETRON CORP 6 Sept 1974 [17 Sept 1973] 39076/74 Heading C3P [Also in Division C2] Polymers exemplified by ABS, polypropylene and polystyrene are rendered flame resistant by incorporation therein of a compound of Formula I wherein a and b are 0 or integers from 1 to 12; c, d, m and p are 0 or 1; n is 0 or an integer from 1 to 10; each X is independently a halogen atom selected from Cl, Br and F; R is a C 5-10  cycloaliphatic; C 4-5  cyclooxaaliphatic or cyclothiaaliphatic or C 7-10  bi- or tricycloaliphatic radical; R<SP>1</SP> is a C 1-7  straight or branched alkylene radical; R<SP>2</SP> is a C 2-6  alkylene, arylene, alkarylene, aralkylene, aralkarylene, alkaralkylene radical having 6-15 carbon atoms, or an alkoxyalkylene, alkoxyarylene, aryloxyalkylene or aryloxyarylene radical; R<SP>3</SP> is a C 5-8  cycloaliphatic, C 4  or C 5  cyclo-oxa-or thiaaliphatic or C 7-12  bi- or tri-cycloaliphatic radical and R<SP>4</SP> and R<SP>5</SP> are divalent halocyclopentenyl radicals in which the valences are pendant from separate carbon atoms adjacent to the double bond carbon atoms and are attached to adjacent carbon atoms of R; the sum of a+b+c+a being greater than zero.
Patent GB-895818-A (GB)
Title: Improvements in or relating to caps or hats for sports wear
IPC: A42B1/06
Filed: 1960-11-15
Abstract: 895,818. Caps. WAGNER, R. Nov. 15, 1960, No. 39132/60. Class 63. A sports cap comprises a peak 11 and a flap 12 both adjoining a crown 10, the outer edges 13 and 15 of the peak and flap respectively forming an unbroken line and the flap, when turned up, extending over part of the crown. To form the peak and flap, two U-shaped pieces of fabric are stitched together around the outer edge, stiffening material 18 is sewn into the base of the U to form the peak and the links of the U are stitched together. This assembly is then stitched to the crown. The crown is formed of from one to six pieces and may be backed by non-woven synthetic resin bonded fabric. Suggested materials for the cap are stiffened linen, felt, straw, cotton or woollen gabardine, knitted fabric, tweed, leather or suede.
Patent GB-1152599-A (GB)
Title: Improvements in or relating to Method of and Apparatus for Making Filament Wound Articles.
IPC: B05D7/20
Filed: 1967-08-25
Abstract: 1,152,599. Forming articles by winding. HERCULES Inc. 25 Aug., 1967 [12 Sept., 1966], No. 39316/67. Heading B8G. [Also in Division Dl] Filament wound structures are made by passing a roving R through an inlet seal 34 into a vacuum chamber 28 so as to evacuate the air from the interfilamentary spaces and from the surfaces of the filaments then passing the roving directly through a second seal 43 to be immersed in a resin supply 46 and from the latter into the atmosphere. The roving R is then wound on to a mandrel and the resin is cured to form the structure. As shown the roving R first passes over toroidal guides 38 in an initial resin bath 45, through vacuum seal 34 formed of a rubber tube 35 and then into the vacuum chamber 28. The vacuum in chamber 28 may be 10-20 mm.Hg. The initial resin bath lubricates the roving and assists in maintaining seal 34. Resin bath 45 may be heated. The resin bath 46 may be degassed before use. The two resin baths 45, 46 may be connected to a resin reservoir. Resin bath 46 may be provided with a flap to wipe (47) excess resin from the roving as it leaves the bath, see Fig. 4 (not shown). Resin chamber 46 can be made to deliver the roving downwardly instead of upwardly as shown. The resin may be an epoxy polymer and the roving may be of glass. The resin baths and vacuum chamber 26 are mounted on a traversing carriage (7) together with the-spools of rovings (18), see Figs. 1 and2 (notshown). An arm (21), over which the unwinding roving runs, takes up any slack in the roving by operation of air cylinder (24).
Patent GB-980322-A (GB)
Title: Improvements in or relating to orthodontic devices
IPC: A61C7/00
Filed: 1960-11-16
Abstract: 980,322. Dentistry. W. V. TOFT. Nov. 10, 1961 [Nov. 16, 1960], No. 39334/60. Heading A5R. An orthodontic device comprises two members 1, 2, displaceable axially relatively to each other by a screwed bolt 4, the members being provided with peripherally extending grooves 8, 9 for use in attaching the members to sections of a dental base. The members are of square section, the member 2 having at its outer end a hole 10 in which may be soldered one end of a small diameter wire (not shown), the other end of which is drawn around a tooth. According to the Provisional Specification the device may be made of stainless steel or plated brass.
Patent GB-1319630-A (GB)
Title: Apparatus for machining internal spherical surfaces on a vertical lathe
IPC: B23B5/40
Filed: 1970-08-14
Abstract: 1319630 Machining spherical surfaces CNMP-BEKTHIEZ 14 Aug 1970 [3 Sept 1969] 39380/70 Heading B3T A vertical lathe for use in machining internal spherical surfaces comprises at least one vertical column 2 and a rotary work-table 3 the column having a vertical displaceable carriage 6 which has mounted thereon a cross slide 7, the slide has a frame 10 mounted on its under-side on which is supported a tool holding assembly 13, 15, which is pivotable on the frame about an axis x-x<SP>1</SP> at right angles to the axis of rotation of the work-table and which permits arcuate movement of the cutting tool in a plane containing the axis of rotation of the table. The pivoting motion of the assembly 13, 15, is effected by a motor 10 and reduction gear 22 and a worm and wheel 20, 21. The cutting tool 17 is mounted in a holder 16 secured to a slide 15 which is displaceable by a screw and nut 24, 23 from a motor 26 and gear-box 25 to adjust the tool to the desired diameter of the spherical surface to be machined. In an alternative embodiment the pivoting movement of the tool holding assembly is effected by crank and lever means attached to the cross slide 7, reciprocating movement of the slide 7 causing pivoting movement of the tool assembly. (For Figures see next page)
Patent GB-972138-A (GB)
Title: Improvements in and relating to electric induction heating devices
Inventor: AINLEY ALFRED JOHN
IPC: H05B6/02
Filed: 1961-11-03
Abstract: 972,138. Inductively heated extrusion apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 1, 1962 [Nov. 3, 1961], No. 39422/61. Heading H5H. An induction heating device comprises two integral magnetic cores 2a, 2b, separated by an insulating partition 4, and containing an induction coil 1 in recesses which open into a common planar end face of the cores which contacts a face 6 of a magnetic object 7 to be heated. As shown, the core members are formed with semicircular recesses, and are bolted to a soft magnetic extruding tool 7 used for covering bare wire 11 with plastic from coupling 10. Further similar heating devices may contact the sides of tool 7. The asbestos insulating partition 4 may be interlocked with a transverse asbestos board 5 arranged in slots in the core members. The heating device may comprise a plurality of coils connected in series or in parallel.
Patent GB-340771-A (GB)
Title: Improvements in manure distributing machines
IPC: A01C15/16
Filed: 1929-12-24
Abstract: 340,771. Distributers for manures. CLAAS, A., Harsewinkel, Westphalia, Germany. Dec. 24, 1929, No. 39423. [Class 6 (i).] In machines having distributing rollers, the carrying axle for each running wheel consists of a bored axle end which accommodates the shaft driving the roller. Running wheels b rest on bored axle ends e fixed to the distributing casing a. In these axle ends are fixed the ends d of a shaft driving the distributing roller c. Slide rings f, fare mounted on the boss i of the wheels by means of coupling bolts h which engage with stops k of a claw disc l fixed to the shaft end d. A lever g is provided for engaging the bolts h with the stops k so that the distributing shaft may be rotated through the mechanism d, l, k, h, f, by the rotation of the running wheels.
Patent GB-1530657-A (GB)
Title: Apparatus for blow-moulding hollow articles
IPC: B29C35/08
Filed: 1976-09-23
Abstract: 1530657 Preheating blow moulding parisons GILDEMEISTER CORPOPLAST GmbH 23 Sept 1976 [8 Oct 1975] 39443/76 Heading F4B [Also in Division B5] The disclosure is the same as Specification 1,530,656 but the claims relate to a device for preheating plastics parisons P to a temperature below the blowing temperature comprising a hot air heating tunnel 28 containing a conveyer 31 to transfer the parisons through the tunnel from an input opening 30 to a discharge opening 36, and a carrier wheel 22 comprising a plurality of parison holders 26 mounted to be reciprocated radially to remove parisons one at a time from the conveyer 31 through the opening 36 by gripping a parison inside its neck portion, e.g. by means of a seal 86. Hot air is drawn in by a fan 33 and blown over heating elements 35. Parisons drop from a magazine 29 through opening 31 and are retained in the openings 38 of the links 37 of the conveyer by engagement of neck beads W with flanges 52. The chain passes around sprockets 39 which are driven in synchronism with the intermittently driven wheel 22 which carries the parison to a final heating station 40, a blow moulding station 42 and a discharge station 46. At heating station 40 the parisons are rotated while they are passed through a ring of radiant heaters at a controlled rate to produce uniform circumferential and non-uniform axial temperature distribution.
Patent GB-806366-A (GB)
Title: Improvements in quadding and centering mechanism for photographic type-composing machines
IPC: B41B15/08
Filed: 1956-12-31
Abstract: 806,366. Clutches, claw and friction; clutch control. INTERTYPE Ltd. Dec. 31, 1956 [Jan. 5, 1956; Nov. 23, 1956], No. 39621/56. Class 80 (2). [Also in Group XX] A photographic type composing machine (see Group XX) includes two clutches. As shown in Fig. 4, a gear 28 is pinned to a sleeve 32 rotatable on shaft 26 and united with the casing 34a of a roller clutch 34, which also has a body member 36 pinned to shaft 26 and formed with six recesses 36a (Fig. 6), each containing a cylindrical roller 44. One edge 36c of each recess is inclined towards the inner wall of casing 34a, so that the rollers 44 are wedged by springs 46 between edges 36a and casing 34a. The clutch also includes roughly triangular spiders 40, 42 with holes 40c, 42c engaging a pin 54 projecting from body member 36 so as to allow limited movement of the spiders with respect to the body member, The clutch 34 is disengaged by pins 48 with tapered ends which enter holes 40b, 42b which are slightly offset when the clutch is engaged. The camming action of the pins 48 on the holes rotates the spiders in opposite directions so that bent-over tabs 40a, 42a thereon push the rollers 44 against the walls 36b of the recesses 36a. Clutch 34 is actuated by a yoke 72 with pins 73 (Fig. 2, not shown), engaging a groove 52a in collar 52 carrying the pins 48. The second clutch is shown in Fig. 7, wherein a gear 56 fast with a gear 22 meshes with a gear 58 freely rotatable on a large shaft 60. A rod 66, slidable in a bore in shaft 60, has a key 64 which extends through slots 60a in shaft 60 and is urged by action of a spring 68 into radial slots in gear 58. The clutch is disengaged by vertical movement of a rod 96, the bevelled end 96a of which acts on a projection 66a of the rod 66 to move it axially against action of spring 60a. A rod 208, locking the shaft 60, is released when the clutch is engaged. Specifications 650,630 and 711,500, [both in Group XX], are referred to.
Patent GB-1362847-A (GB)
Title: Process for the preparation of light hydrocarbon and lubricating  oil
IPC: C10G65/10
Filed: 1971-08-24
Abstract: 1362847 Hydrocracking SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 24 Aug 1971 [26 Aug 1970] 39637/71 Heading C5E A heavy hydrocarbon oil, of which more than 50% by volume boils above 375‹ C. is hydrocracked in two stages; the product of the first stage is separated into three fractions, a light oil with a final boiling point not above 300‹ C., a lubricating oil with an initial boiling point of at least 375‹ C., and a middle distillate lying between them; this middle distillate comprises the feed to the second hydrocracking stage, and a light oil with a final boiling point not above 300‹ C. is separated from the product of the second hydrocracking stage. The products of the two hydrocracking stages may be fractionated separately, in which case the residue from the distillation of the second-stage product is recycled to the second hydrocracking step. Alternatively, the products of the two hydrocracking steps may be combined and fractionated together to provide the light oil, lubricating oil and middle distillate specified above. The heavy hydrocarbon feed may be a mixture of a vacuum distillate from crude oil and a deasphalted vacuum residue. The lubricating oil fraction may be dewaxed, and the wax so obtained may be mixed with the middle distillate and fed to the second hydrocracking stage. The hydrocracking may be by the trickle technique over a catalyst containing one or more metals of the Group VI and one or more of the iron group, e.g. in the sulphide form, on a carrier, e.g. of silica, alumina, magnesia, zirconia, silicaalumina, silica-zirconia or zeolite. The catalyst may also contain fluorine or phosphorus or both. The light oil may be recovered as more than one fraction, when the naphtha fractions can be used for the preparation of motor gasolines and recovery of aromatics, and the kerosene fractions for the preparation of jet aircraft fuels.
Patent GB-1022752-A (GB)
Title: Improvements in or relating to the polymerisation of lactams
IPC: C07D417/04
Filed: 1962-10-19
Abstract: The following compounds are used as promoters in the anionic polymerization of lactams having at least 7 ring members:-  (a) An unsubstituted N-triazino lactam.  (b) Lactams having on the imido group a heterocyclic substituent containing one ring nitrogen atom doubly bonded to a ring carbon which is tautomerically linked to the imido group of the lactam and which substituent may contain one additional hetero-atom which is N, O or S.  Promoters (b) may be formed in situ in the reaction medium. Numerous promoters are exemplified including various N-pyridazino, -pyrimidino, -pyrazino, -(2-oxazolyl), -(2-thiazolyl), -(2-benzoxazolyl) and -(2-benzothiazolyl) lactams.  The polymerization process may be used for the direct production of moulded, injected or extruded articles and the mix may include fillers, e.g. sand, carbon black, aluminium filings or glass wool, or blowing agents, e.g. barium carbonate-azide.  Glass fibres may be impregnated with the mix and wound round a core to form a reinforced tube. Specified lactams are capro-, enanther, capryloand lower-lactams and dimer and trimer cyclic lactams.
Patent GB-1013588-A (GB)
Title: Method and device for threading a sewing needle
IPC: D05B87/00
Filed: 1964-10-01
Abstract: 1,013,588. Needle threaders. SINGER CO. Oct. 1, 1964 [Oct. 8, 1963], No. 39935/64. Heading D1G. A needle threader comprises a flexible resilient medium formed with opposed surfaces, means for urging said surfaces into mutual engagement, means for defining a linear thread path between said surfaces, and means for sustaining a needle to be threaded with the needle eye in alignment with said path, the sustained needle and resilient medium being movable relative to one another in the direction of the thread path to effect threading of the needle. A base 20 has side flanges 21, 22 which support respective rubber blocks 25, 26 and are so positioned that the opposed surfaces of the blacks are urged into mutual engagement. Base 20 also has end flanges 30, 31 so dimensioned that a thread 40 stretched therebetween lies in a linear path between said surfaces and the eye of a sewing machine needle 11, with the point of the latter shutting base 20, is disposed on said path. In use, a thread is initially stretched between the flanges 30, 31 and is then drawn lengthwise until its face and 41 is disposed between the blocks 25, 26. A needle to be threaded is then positioned with its point shutting base 20, and its eye aligned with the thread path. The needle is then moved towards the blocks and in passing therebetween the thread end 41 passes through the needle eye and is gripped between said surfaces on the other side of the eye, when further movement of the needle serves to complete the threading operation. For threading a hand sewing needle, the device is so proportioned that the butt end of the needle engages base 20.