baber/WOPTO huggingface dataset:
Patent GB-1086726-A (GB)
Title: Dialkylperoxymalonic acid esters
IPC: C07C409/38
Filed: 1964-10-02
Abstract: Ethylenically unsaturated compounds are polymerized at 60-250 DEG  C. at pressures from atmospheric to 50,000 p.s.i. in the presence, as catalyst, of a peroxydicarboxylic acid ester of the formula <FORM:1086726/C3/1> in which R represents a C3- 14 radical which is an alkyl, cycloalkyl, aralkyl, aryl, alkoxy-substituted substituted aralkyl or alkoxy-substituted aryl group and each R1 is an C1- 8 alkyl radical.  It is preferred to use from 5 p.p.m. to 5% wt. catalyst based on the monomer.  A chain transfer agent, e.g. hydrogen, propane, chlorinated hydrocarbon or mercaptans, can be used in the process.  Examples describe the preparation of polymers from ethylene, styrene, methylmethacrylate, vinyl acetate.  Other specified monomers are acrylonitrile and vinyl chloride.ALSO:The invention comprises peroxydicarboxylic acid esters having the formula <FORM:1086726/C2/1> where R is a group containing 3-14 carbon atoms and is an alkyl, cycloalkyl, aralkyl or aryl group or an alkoxy-substituted aralkyl group or an alkoxy-substituted aryl group, and each R1 is a C1- 8 alkyl radical.  The esters ar made by reacting a dialkylmalonyl halide of the formula <FORM:1086726/C2/2> in which X is a halogen atom with an organic hydroperoxide, ROOH, in the presence of a hydrogen halide acceptor at - 40 DEG  C. to + 25 DEG C. Examples relate to the preparation of di-t-butyl 2,2-dimethylperoxymalonate, di-t-butyl 2-butyl-2 -ethylperoxy-malonate, bis(1,1-dimethylhexyl) dimethylperoxy - malonate, bis(1,1,3,3 - tetramethylbutyl)dimethylperoxy - malonate, dicyclohexyl diethyl-peroxymalonate, bis-(a ,a -dimethylbenzyl)dimethylperoxymalonate and bis-(p - methoxy - a  - methylbenzyl)dihexylperoxy-malonate. The peroxyesters are used as polymerization catalysts (see Division C3).
Patent GB-954509-A (GB)
Title: Improvements relating to mattresses
IPC: A47C27/14
Filed: 1960-11-25
Abstract: 954,509. Mattresses. DUNLOP RUBBER CO. Ltd. Nov. 25, 1960 [Dec. 28, 1959], No. 40520/60. Heading A4M. [Also in Division B5] A mattress comprises a body of resilient cellular material having a cover of flexiblesheet material attached to it by means of an adhesive which contains a bactericidal substance. The cellular material may be a foamed polyurethane derived from an organic di-isocyanate or poly-isocyanate and a polyether. The bactericidal substance may be a metal salt of a substituted dithiocarbamic acid e.g. sodium or zinc di-ethyldithiocarbamate. The adhesive exemplified contains 15% polychloroprene, 1.25% zinc oxide, and 0.15% zinc di-ethyl-dithiocarbamate in a toluane solvent. The covering material may be a textile fabric derived from natural or synthetic fibres.
Patent GB-1383189-A (GB)
Title: Apparatus for the vacuum deposition of thin layers
IPC: C23C14/22
Filed: 1973-08-28
Abstract: 1383189 Apparatus for vacuum deposition of thin layers COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 28 Aug 1973 [31 Aug 1972] 40536/73 Heading C7F Vacuum deposition apparatus comprises at least one target supported in a crucible which is both cooled and maintained at a selectable A.C. or D.C. potential and includes at least one plasma generator arranged to direct at least one plasma beam on to the target(s). As shown, plasma from generator 1 leaves the generator at outlet 11 and the positive ions thereof impinge upon material 23 of a negatively charged target, causing sputtering thereof, whilst the electrons thereof impinge upon positively charged target material 13 and cause evaporation thereof. Generator 1 has a heated cathode filament 5, the electrons from which pass through anodic tube 8 which is surrounded by a magnet or field-inducing coil 9. Each crucible 14 or 25 respectively is internally water cooled and is surrounded by an earthed shield 15 or 25. The crucibles may plug into plate 4 in the wall of a vacuum chamber and are sealed by a series of O-rings Fig. 2 (not shown). In alternative arrangements Fig. 3 (not shown), there may be two plasma generators or two outlets from a single generator. A single target may be used, connected to an A.C. source. The apparatus may be used for simultaneous or sequential evaporation and sputtering.
Patent GB-1284550-A (GB)
Title: Improvements in centrifugal separators
IPC: B04B3/00
Filed: 1969-12-08
Abstract: 1284550 Centrifugal strainer FIVES LILLECAIL 8 Dec 1969 [9 Dec 1968] 40638/71 Divided out of 1284549 Heading BID The description is similar to part of that of Specification 1284549 and the claims relate to the sealing between liquid and solids receiving chambers 18 and 20 inside and outside of partition 16 produced by filtrate being thrown from the lower edge of skirt 36 on to wall 38 as a continuous sheet and flowing down into channel 42 which forms a hydraulic seal. (For Figure see next page)
Patent GB-1023466-A (GB)
Title: Yarn tensioning devices
Inventor: IWNICKI KURT
IPC: B65H59/38
Filed: 1963-10-16
Abstract: A yarn tensioning device comprises a shaft 12, The Figure (not shown), rotated by a yarn engaging a pulley and fast with a frusto-conical race 11 over which run caged tapered rollers 14, also running over a neoprene, &c. 0-ring 13 in a fixed cup-shaped race 15. As the rollers 14 run over the 0-ring 13, they repeatedly compress and deform the latter, so that due to internal hysterisis, heat is developed.  The cup-shaped race 15 may be made from heat insulating material.  A nut 18 screwed into the cup-shaped race 15 permits axial adjustment of the relative positions of the parts to control the tension in the yarn.
Patent GB-1045508-A (GB)
Title: Comminuting machine for meat
IPC: B02C18/06
Filed: 1965-09-24
Abstract: 1,045,508. Comminuting meat. A. STEPHAN UND SOHNE. Sept. 24, 1965 [Sept. 25, 1964], No. 40804/65. Heading A4C. A meat comminuting machine comprises a housing 3 for a motor driven rotary cutter head 4, a stationary cutter ring 5 (Fig. 3, not shown) fitted around the head 4 with a transverse pin 9 directed inwardly from the housing 3 engaged in an axially extending guide groove 8 in the ring 5, and a hopper 13 (Fig. 2, not shown) having pins 12 engaging bayonet slots 11 in the housing 3 thereby bear against and hold the ring 5 in the housing 3. A further ring 10 (Fig. 4, not shown) is fitted within the cutter ring 5.
Patent GB-876209-A (GB)
Title: Bearings and bearing material and methods of manufacturing the same
Inventor: FULFORD BRUCE BENNETT
IPC: F16C33/04
Filed: 1958-12-18
Abstract: 876,209. Bearings. GLACIER METAL CO. Ltd. Dec. 3, 1959 [Dec. 18, 1958], No. 40923/58. Class 12 (1). A metal backing element for a bearing or bearing material is surface treated to produce an irregular receptive surface which is then coated with a mixture of polytetrafluoroethylene and a soft low melting point metal or alloy, the metal or alloy being in a proportion of 1-50% by volume of the mixture. The surface treatment may be as described in Specification 701,690 which is referred to wherein a composite backing is subjected to chemical or electro-chemical treatment to remove one metallic constituent to leave a porous or irregular structure. Alternatively, the surface may be etched, short-blasted, sandblasted, impregnated with sulphur, phosphated or anodized, or another surface layer provided by metal spraying. The low melting point metal or alloy preferably comprises lead, indium or cadmium. Specific examples using steel, sintered or cast copper-lead, or aluminium backing elements are referred to. Reference has been directed by the Comptroller to Specification 824,940.
Patent GB-917118-A (GB)
Title: Gyratory crushers
IPC: B02C2/04
Filed: 1960-11-29
Abstract: 917,118. Gyratory crushers. KUENEMAN, J. R., and KUENEMAN, D. Nov. 29, 1960 [Dec. 8, 1959], No. 40940/60. Class 59. [Also in Group XXVI] The head 49 and stem 48 of a gyratory crusher are supported by a structure which comprises a frame having a bearing bore in which is journalled a driven sleeve 38 having an eccentric bore in which is rotatably received the lower portion 48<SP>1</SP> of the stem, and a torsionally flexible dust-impervious sealing assembly is arranged in fixed relation to the frame and in slidable engagement with the head. The head is supported on a bearing 62 retained by the upper portion 33 of a collar portion 30 of the crusher frame, and means are provided for supplying liquid lubricant to the bearing bore in the frame, the bore in the sleeve 38 and the bearing 62. The sealing assembly comprises a rigid ring 64 sealingly associated with the bearing face of an annulus 60 depending from the head 49 and a flexible sleeve 66 connected to the ring 64 and to an intermediate portion 36 of the collar portion 30, there also being a sealing ring 74 which is slidably operative between the ring 64 and the bearing face of the annulus 60. The ring 64 and head 49 are centred relatively to each other by means of an annular guide ring 71 secured to the ring 64 and located within a peripheral flange 57 of the head 49. Various modifications are described in one of which, Fig. 11 (not shown), the head has a flat under-surface whereby the head gyrates without swinging.
Patent GB-1520648-A (GB)
Title: Centifuge separation and washing device and method
IPC: B01D21/26
Filed: 1975-10-08
Abstract: 1520648 Centrifugal separation UNION CARBIDE CORP 8 Oct 1975 [9 Oct 1974] 41235/75 Heading B2P  A centrifuge suitable for separating blood cells from their plasma includes a central injector 8 (Figure 4) which feeds the whole blood through apertures 7 to radial channels 2 formed between a lower casing part 1 and an intermediate plate 6. The blood then passes upwardly through holes 5 to the apices of chambers 9 circumferentially spaced around the centrifuge. Each chamber has inclined walls which converge radially outwardly towards a hole 5. An upper casing part (not shown) covers the chambers. The blood cells collect in the chambers when the centrifuge is rotated at full speed, and the plasma can be drawn inwardly through apertures 19 in the injector to an outlet 41. In an alternative construction, Figure 5, the chambers 51 are of pyramidal-shape and are defined by an upper plastics sheet 78 (which fits within a contoured upper shell 55, 56) and a generally flat lower sheet 68 which is seated together with a bottom sheet 74 in a lower shell 54. As before, radial flow passages are formed between the lower and bottom sheet and communicate at their outer ends with the apices of the chambers 51. The injector 57 and sheets are disposable. After the blood cells have collected in the chambers, a washing fluid may be passed through the injector and cells, while the centrifuge is rotating at a lower speed. The fluid is collected at the outlet of the injector. A resuspending fluid for the cells can then be passed (in a reverse direction) through the outlet. The fluid, together with the cells, can be recovered via the radial channels from the inlet of the injector.
Patent GB-1471105-A (GB)
Title: Method and apparatus for producing iron from iron ore
IPC: C21B13/00
Filed: 1975-10-08
Abstract: 1471105 Shaft furnace production of iron HEATRAN Inc 8 Oct 1975 41305/75 Heading C7D In the shaft furnace production of molten iron from iron ore, coke and limestone, the off-gas, containing CO, is fed into a combustion chamber which is also supplied with air, the mixture is combusted, converting CO to CO 2 , and the heated gas produced is fed to the tuyeres, preferably at 621-676‹C. The off-gas is fed into the chamber at 38 and the air tangentially at 54, the mixture being combusted within the inner shell 46 and discharged through outlet 44. A controller acts upon valves in the gas and air-streams to give the desired air/gas ratio for combustion. Additional O 2  may be added to the heated gas from outlet 44 prior to entry into the shaft furnace via a conduit (61), Fig. 1 (not shown), and 02 may also be supplied to the hearth, converting the molten iron to steel as well as supplying O 2  for coke combustion.
Patent GB-1512155-A (GB)
Title: Ladder attachments
IPC: E06C7/16
Filed: 1976-10-06
Abstract: 1512155 Ladder platform P W WOODS 6 Oct 1976 41528/76 Heading E1S A platform 11 for mounting on a ladder comprising a substantially flat portion with bent runs 12-14 and one or more U-shaped mounts 16 for fitting over a rung, a rigid arm 17 which is rigidly or, as shown, pivotally mounted to the back rim 13, the arm 17 terminating in a bent-over portion 18 provided with a catch 19 for locking portion 18 to a higher rung. A drainage hole 15 may be provided.
Patent GB-1534975-A (GB)
Title: Torque wrench
IPC: B25B23/155
Filed: 1976-10-07
Abstract: 1534975 Torque wrenches REPCO Ltd 7 Oct 1976 [8 Oct 1975] 41765/76 Heading B3N In a torque wrench comprising a handle 3 and a head 2 pivoted to the handle at 6, a torque control mechanism 4, which may, as shown in Figs. 1 and 2, be detachable from arm 5 of the head, causes the wrench to "break" at a predetermined torque. The mechanism 4 comprises a body 9 and a lever 14 pivoted to the body at 15, the lever being biased into engagement with a projection 41 of adjustable reaction member 10 on the handle by means of a spring 26 acting through a plunger 24 and toggle bar 27. On application of torque, movement of the handle 3 relative to head 2 and arm 5, and hence movement of lever 14 by projection 41, is resisted by spring 26. At a predetermined torque selected by adjusting the position of the projection 41, the spring force is overcome and inclined toggle bar 27 snaps into a position more in line with the plunger and spring, Fig. 3, not shown. Adjustment of reaction member 10 is by screw arrangement 44-48. The tool may be calibrated by adjustment of spring 26 via backing element 35 and screw 36. The torque setting is indicated by a pointer (20) at a window (40) in the handle co-operating with a scale (30) on member 10, Fig. 6, not shown. In the arrangement of Fig. 7, the bias spring 126 and plunger 124 are mounted in arm 105 and reaction member 110 with projection 141 is adjustable along the handle by means of a clamping screw 151 slidable in slot 153.
Patent GB-863729-A (GB)
Title: Apparatus for bending glass sheets
IPC: C12C7/26
Filed: 1958-12-29
Abstract: 863,729. Bending glass sheets. LIBBEYOWENS-FORD GLASS CO. Dec. 29, 1958 [Jan. 2, 1958], No. 41834/58. Class 56. Apparatus for bending glass sheets comprises an outline bending mould having shaping surfaces and including a movable centre section and oppositely disposed pivotal end sections operatively connected at their inner ends to the centre section, the axis of rotation of each pivotal end section being mounted for movement in a substantially linear or straight path. The mould 22 comprises centre section 26 with shaping rails 28, 29 pivoted to end sections 27 with curved shaping rails 31. 32 joined by end rail 33 and with diagonal rails 34 as in Specification 842,970, the pivot bars 43 being adjustably secured, as in Specification 855,461, by clamping blocks 54 to the underside of the end sections 27 and supported on the side rails 23 of the main frame 21 for longitudinal movement as the mould moves from the open position of Fig. 5 to the closed position of Fig. 2. Each pivot bar 43 has at each end a roller 44 which rides along the top edge 48 of a plate 47 lying between uprights 46 and under a removable clamping bar 49 with under edge 51, the edges 48, 51 being straight as shown or with any desired slight curve. To prevent shifting of the glass sheet 37 in the bending furnace if the mould 22 were freely movable as the rollers 44 move between uprights 46, a restraining strap 79 is secured to one only of the plates 47 by bolts 80 and the pivot bar 43 passes through an opening therein with slight clearance. In the open position of the mould, the glass 37 is supported on end rails 33 and by pads 40 on bars 39 raised to their upper position by means of linkage mechanism 41. In the closed position, the bars 39 interengage with end bars 36 to form a continuous strain bar to form a compression band in the glass sheet 37.
Patent GB-1469793-A (GB)
Title: Current proportioning circuit
IPC: G05F3/26
Filed: 1974-09-26
Abstract: 1469793 Transistor circuits RCA CORPORATION 26 Sept 1974 [5 Oct 1973] 41865/74 Heading H3T A circuit for producing an output current I C101  which has a predetermined fraction of an input current I o  comprises: two non-linear elements 103, 104 having substantially the same current/voltage characteristic, one of the elements, 104, being connected between input terminal 105 and the collector of a transistor 102 and the other, 103, being connected between input terminal 105 and the base of transistor 102; and means connecting the base-emitter path of output transistor 101 across the collector-emitter path of transistor 102. It is shown that: The non-linear elements are transistors which in the embodiment of Fig. 1 are strapped as diodes. In a first modification, Fig. 2 (not shown) further diode-strapped transistors are included in series with the first two in the connections to the respective base and collector electrodes of transistor 102. In modifications of either of these two arrangements, Figs. 3, 4 (not shown) the transistor 103 is not strapped as a diode, its collector being taken to a fixed potential. The circuit of Fig. 3 may be used to provide bias supplies for a transistor amplifier 515, Fig. 5. In this arrangement, the current I IN  is derived from a first current amplifier circuit 505 which also supplies the collector bias to amplifier 515. The output current I o  flows through a second current amplifier 510 which supplies the base current for amplifier 515. Thus with correct proportioning of the currents, no current will flow through load 521 under quiescent conditions. In a modification, Fig. 6 (not shown) a Darling- ton amplifier is biased from a circuit similar to that of Fig. 2.
Patent GB-952319-A (GB)
Title: Improvements in and relating to the manufacture of filled and sealed flexible containers
Inventor: OWEN HUGH WILLIAM WYNNE
IPC: B65B9/13
Filed: 1958-12-29
Abstract: 952,319. Packaging. JOHN TYE & SON Ltd. March 17, 1960 [Dec. 29, 1958], No. 41893/58. Heading B8C. [Also in Division F2] Flexible heat-sealable tubes 11, Fig. 3, from which a succession of sachets are to be formed, are fitted at intervals with filling inlets 20, a flexible filler pipe 21 being connected to each filling inlet in turn and moving with the tube as the tube progresses towards a transverse welding station 17. As shown the tube passes down an incline 18 and is allowed to hang in a loop 19 before entering station 17, the loop serving to prevent air bubbles from being carried into the sachets. When the filling pipe 21 is transferred from a lower filling inlet to a higher inlet the lower inlet is plugged, the plugged inlet passing through the machine. The particular sachet to which the plugged inlet is attached is discarded. Joining the tubes, Fig. 6.-When the end of one length of tube has been reached, its end is sealed as at 35 and slit as at 36, and a barrier ring 38 is arranged inside the tube to surround the slit. The end of a fresh tube is treated in like manner. The slits 36 are then placed in alignment and the overlapping ends of the tubes inserted in a high frequency welding device where the two inner walls 37 of the tubes are joined together by a weld ring 39, the barrier rings 38 preventing the outer walls 40 from being welded to the inner walls 37. This portion of the tube is also scrapped when it emerges from the sachet forming machine. The tubes 11 may be formed with side fins for the purpose disclosed in Specification 786,188.
Patent GB-1274719-A (GB)
Title: A mowing device
Inventor: RISSER ROGER LEE
IPC: A01D34/135
Filed: 1969-08-25
Abstract: 1,274,719. Mowing devices. SPERRY RANDCORP. 25 Aug., 1969 [26 Aug., 1968], No. 42217/69. Heading A1F A mowing device affixable to a harvesting machine, comprises reciprocable sickle means capable of cutting crop material throughout its length, and drive means connected to each end of the sickle means to cause reciprocation thereof. The sickle means comprises two separate sickle bars 72 and 74 reciprocated in opposite directions by wobble drives 42 and 44, and an extension sickle bar 89 rivetted at 95 to the bar 74 and slidably engaging the bar 72. Knives 78, 82 are rivetted at 86 to knife backs 76, 80 of sickle bars 72, 74 and the end knife 84 on knife back 76 is inverted so as to co-operate by overlapping with knives 82a on the extension 89. Guards 90 provide ledger surfaces co-operating with the knives. and the central guide 98 is cutaway to accommodate the overlapping of the knives 82a and 84. The knives 82 are slightly above the knives 78. Knife hold-down clips 92 are mounted on frame members 18a, 18, shims 94 being used as shown for the knives 82 of the bar 74 and being inserted below the members 18a, 18 (Figs. 4 and 5, not shown) to lower both clips 92 and guards 90 for the knives 78 of the bar 72. An auger cylinder 20 is driven by belt or chain by one of the wobble drive shafts 30 or 32 driven by a power source on the harvesting machine. A reel (not shown) is driven by belt or chain engaging a pulley 28 on the auger cylinder 20.  (For Figures see next page)
Patent GB-1015361-A (GB)
Title: A device for nebulizing powders
IPC: A45D33/00
Filed: 1962-11-08
Abstract: 1,015,361. Powder and liquid distributers. V. GHISOLFI. Nov. 8, 1962 [Nov. 11, 1961], No. 42222/62. Heading B2F. A powder or liquid distributer comprises a resilient walled container A having a closure C provided with an outlet nozzle 24 backed by a mixing chamber 14 into which open conduits 30, 32 extending respectively from the bottom and top of the container. When the container is squeezed, powder &c. is forced through conduit 30 and air through conduit 32 into the cavity where it entrains the powder &c. The inner end of cavity 14 is curved to divert smoothly the air flow from conduit 32. A plurality of conduits 32 may be provided. The nozzle and mixing cavity are formed in the undersurface of a body 16 which is a force fit in the closure C.
Patent GB-975501-A (GB)
Title: Knitting machine
IPC: D04B15/06
Filed: 1963-10-25
Abstract: 975,501. Knitting-machines. SINGER CO. Oct. 25, 1963 [Oct. 29, 1962], No. 42282/63. Heading D1C. To assist loop formation a blade 44 is provided within the needle circle at each feed of a circular machine and projects into the sinker throats when the sinkers are advanced.
Patent GB-1476835-A (GB)
Title: Colostomy surgical appliance
IPC: A61F5/445
Filed: 1975-10-15
Abstract: 1476835 Colostomy bag retainer P HUESTON 15 Oct 1975 [28 Nov 1974 3 July 1975] 42348/75 Heading A5R A colostomy bag retainer comprises a flattened plastics ring 1 having parallel inner and outer end faces and radially outer and inner surfaces formed as outwardly converging parallel frusto-conical surfaces, the ring having diametrically opposed T-bar hooks 5, 6 which are engaged by clips 16, 17 of a waist band to hold the ring in place. The waistband has a rubber cord 11 which passes at each end through bored sleeves 14, 15 in which the clips are located, the bore having a step to provide a reduced diameter part which grips the cord.