baber/WOPTO huggingface dataset:
Patent GB-1354458-A (GB)
Title: Process for modifying a fibrous substrate with a siloxane polymer
Inventor: PITTMAN ALLEN G
IPC: C08G77/46
Filed: 1971-05-18
Abstract: 1354458 Polyoxyalkylene sesquisiloxane homopolymer A G PITTMAN and W L WASLEY 18 May 1971 [19 May 1970] 20784/73 Divided out of 1344336 Heading C3T [Also in Divisions D1-D2] A siloxane polymer for modifying a fibrous substrate comprises essentially only recurring units of the structure or recurring units of the structure wherein R<SP>11</SP> is a monovalent hydrocarbon radical (1 to 20 C), an acyl radical or hydrogen, Alk is an alkylene group (2 to 6C), x is an integer from 2 to 100, R<SP>111</SP> and R<SP>1111</SP> are each divalent linking radicals and are independently selected from the groups -CH 2 -, -CH 2 CH 2 CH 2 -, -CH 2 CH- (CH 3 )-CH 2 -, -CO-CH(CH 3 )-, or -CO-C- (CH 3 )2-, R is hydrogen, or a monovalent hydrocarbon radical or a monovalent halohydrocarbon radical, c and c<SP>1</SP> are independently 0, 1 or 2, d and d<SP>1</SP> are independently an integer from 1 to 3, the sum of c and d is 3, and the sum of c<SP>1</SP> and d<SP>1</SP> is 3. The polymers may be applied as a solution in an inert volatile solvent, e.g. benzotrifluoride, 1,3-bis-trifluoromethylbenzene, or trichlorotrifluoroethane, as an emulsion in water, or as a suspension, followed by curing to bond the polymer to the fibres by heating at 50-150 C. for 5 to 60 minutes. Curing may be accelerated by the presence of a curing catalyst which may be a titanium, zinc or zirconium compound. In the example a wool/rayon/polyester fabric was first given a durable press treatment with dimethylol dihydroxy ethylene urea. The fabric was then immersed in a neutral aqueous solution of a hydrolysis polymerization product of a precursor having the formula CH 3 -O-(CH 2 -CH 2 -O) g -(CH 2 ) 3 -SiCl 3 , (g#12) squeezed to 60% wet pick-up, air dried, and cured in an oven at 300 F. for 5 minutes.
Patent GB-478972-A (GB)
Title: Improvements in or relating to the manufacture of lubricants
IPC: C10G50/02
Filed: 1936-07-27
Abstract: In the manufacture of products useful as lubricants by chlorinating an aliphatic hydrocarbon having a molecular weight above 200 and condensing the chlorinated hydrocarbon with an aromatic hydrocarbon in the presence of aluminium chloride, the reaction product is allowed to separate into two layers, and the lower layer or a part thereof is used as the condensing agent in the process, with or without addition of fresh aluminium chloride. The chlorinated aliphatic hydrocarbon may be chlorinated paraffin wax containing not more than 40 per cent, preferably 15--30 per cent, of chlorine; chlorinated gas oil or shale oil may also be used.  The aromatic hydrocarbon may be benzene or toluene, and may be present in excess. The process may be effected in batches or continuously.  In the latter case, the reagents and the condensing agent are fed to a heated reaction vessel through which the mixture passes to a separating device, the lower layer from the separator being returned to the reaction vessel.  Examples of batch processes conducted as described above are given. Specifications 259,507, [Class 2 (iii)], and 447,778 are referred to.ALSO:In the manufacture of products useful as lubricants by chlorinating an aliphatic hydrocarbon having a molecular weight above 200 and condensing the chlorinated hydrocarbon with an aromatic hydrocarbon in the presence of aluminium chloride, the reaction product is allowed to separate into two layers, and the lower layer or a part thereof is used as the condensing agent in the process, with or without addition of fresh aluminium chloride. The chlorinated aliphatic hydrocarbon may be chlorinated paraffin wax containing not more than 40 per cent, preferably 15--30 per cent, of chlorine; chlorinated gas oil or shale oil may also be used.  The aromatic hydrocarbon may be benzene or toluene, and may be present in excess.  The reaction may be effected at a raised temperature, and the upper layer may be worked up by washing it with dilute hydrochloric acid, drying, and distilling off any excess of aromatic hydrocarbon; further refining treatment, e.g. dewaxing or molecular distillation, may follow.  The lower layer is used again as described above, but a portion may be removed at intervals and replaced by fresh aluminium chloride; the removed portion may be treated similarly to the upper layer.  The process may be effected in batches or continuously.  In the latter case, the reagents and the condensing agent are fed to a heated reaction vessel through which the mixture passes to a separating device, the lower layer from the separator being returned to the reaction vessel. Examples of batch processes conducted as described above are given. Specifications 259,507, [Class 2 (iii)], and 447,778 are referred to.
Patent GB-457379-A (GB)
Title: Improvements in or relating to sharpening devices for slicing machines employing circular knives
IPC: B24B3/46
Filed: 1936-07-28
Abstract: 457,379. Sharpening slicing-machine knives. GRIFFITHS, A. V., and AUTOMATIC SCALE CO., Ltd., Broadheath, Altrincham, Cheshire. July 28, 1936, No. 20830. [Class 60] A slicing - machine having a circular knife is fitted with a sharpening device consisting of a grinding wheel 2 and a burr-removing wheel 3 mounted in a castmetal holder 1 which is pivoted about a horizontal axis 6 to a sleeve 7 rotatably mounted on the knife-guard 11. As shown, the holder rests on an adjustable pin 14 on the guard 11, the knife 12 lying between, but out of engagement with, the wheels 2, 3. The holder 1 can be moved by its handle 13 about the pivot 6, first to the left and then to the right to sharpen the wheel. The movement to the right is against the resistance of a spring-loaded plunger 15 on the housing engaging the pin 14. On the completion of the sharpening operation the holder is lifted about its pivot 6, turned to the right until a slot 1e in an extension 1d of the housing engages the pin 14, and then lowered with the extension 1d covering the exposed portion of the knife.
Patent GB-569963-A (GB)
Title: Improvements relating to fly-wheels
IPC: F16F15/121
Filed: 1943-12-14
Abstract: 569,963. Flywheels. STANLEY, G. E. Dec. 14, 1943, No. 20911. [CLass 122 (i)] [Also in Group XXXII] In order to permit slight inclination of a flywheel relatively to its shaft, the flywheel is carried by a spider rigidly bolted at its hub 20 to the shaft and provided with arms 21, having material axial and lesser circumferential flexibility, slidingly connected at their ends 22 to the flywheel. The centre of the flywheel .has a spigoted or other connection 14 with the shaft which will permit relative inclination. A flexible clutch disc as described in Specification 556,908, [Group XXIV], may co-operate with one face of the flywheel. The flywheel also functions to damp out torsional and transverse vibrations of the crankshaft.
Patent GB-1148671-A (GB)
Title: Synthesis of equilin
IPC: C12P33/00
Filed: 1966-05-11
Abstract: 1,148,671. Production of equilin. AYERST McKENNA & HARRISON Ltd. 11 May, 1966 [13 May, 1965], No. 20943/66. Heading C2C. The invention comprises (a) a process for producing equilin from a compound of formula wherein R is C, C-H, C-O Acyl, C-CH 2 OH or C-CH 2 O Acyl, R<SP>1</SP> is hydroxy, acyloxy or keto and R<SP>2</SP> is a chain of formula wherein R 3  is hydrogen, methyl or ethyl, by incubation with a micro-organism selected from Bacterium cyclooxidans, Mycobacterium rhodochrous, Corynebacterium simplex and Nocardia corallina, (b) Cholesta-5,7-diene-3#,19#-diol diacetate, prepared by irradiation of the 5-en in admixture with N-bromo-succinimide, (c) 19- hydroxy-cholesta-4,7-dien-3-one, prepared from compound (b) by hydrolysis and Oppenauer oxidation, (d) 3, 19-diacetoxy-cholesta-3,5,7-diene, prepared by conversion of compound (c) to its acetate followed by enol acylation, (e) 10- acetoxy-cholesta-4,7-dien-3-one, prepared by reaction of compound (c) with lead tetraacetate, (f) 19-hydroxy-cholesta-5,7-dien-3-one, prepared by treatment of compound (c) with sodium methoxide in dimethyl sulphoxide, (g) 17#-(2<SP>1</SP>- (6<SP>1</SP>-methyl-heptyl))-estra-5,(10),7-dien-3-one, prepared by treatment of compound (c) with zinc dust in glacial acetic acid, and (h) 19-nor- Cholesta-4,7-dien-3-one, prepared by treatment of compound (g) with methanolic hydrochloric acid or methanolic potassium hydroxide.
Patent GB-715941-A (GB)
Title: Improvements in cooking stoves
Inventor: TRUEMAN BERNARD
IPC: F24C15/08
Filed: 1950-08-25
Abstract: 715,941. Ovens. SIMPLEX ELECTRIC CO., Ltd. Aug. 17, 1951 [Aug. 25, 1950], No. 21030/50. Class 126 [Also in Group XXII] An oven body is made by pressing a sheet metal plate to form a depression surrounded by a flange, and conforming approximately at its mouth to the required shape and area of the front portion of the oven, and conforming at its base to the required shape and area of the back of the oven, severing the base portion of the depression from the portion adjoining the mouth of the depression, forming a sheet metal of cross section corresponding with the severed edges of the pressed plate, and securing the base part to one end of the tube to form the back of the oven and securing the other portion to the other end of the tube to form the front part of the oven. The sheet metal plate is pressed to form a flat outer flange 14, Fig. 3, a backwardly extending lip 15 and a bead 16. A depression 17, of section corresponding to that required for the oven and provided with a shallow central depression 19, is formed within the bead 16. The pressing is cut along the dotted line near a cranked portion 22 in the wall of the depression 17, and one end of a sheet metal tube 23, Fig. 1, which may have shallow depressions in its sides is welded to each portion of the pressing. The flange 14 covers the front frame 10 of the stove, Fig. 1, and the base of the depression 17 forms the back of the oven. The joins may be butt or lap welds.
Patent GB-1462281-A (GB)
Title: Bottle orientation apparatus
IPC: B65G47/24
Filed: 1974-05-13
Abstract: 1462281 Orientating bottles on a conveyer belt AIDLIN AUTOMATION Inc 13 May 1974 [1 Aug 1973] 21113/74 Heading B8A Bottles 1 lying either way round between adjacent flights 9 of a conveyer belt 5 are raised into a vertical position by the action of guide surfaces 15 and 16, and a guide member 12. These guide surfaces and members are disposed on each side of the belt 5 so that the action on each successive bottle is the same no matter which way round the neck of the bottle lies. The erected bottles are centred relative to the direction of conveyance by the action of parallel guide surfaces 19 formed on the guide member 12, and by a further guide member 20.
Patent GB-686135-A (GB)
Title: Improvements in cyclopentanophenanthrene derivatives and process for producing the same
IPC: C07J75/00
Filed: 1950-08-25
Abstract: 2 - Halo - allopregnane - 17a  - ol - 3,20 - dione having the formula <FORM:0686135/IV (b)/1> wherein X is a chlorine or bromine atom, is produced by reacting allopregnane-3b ,17a -diol-20-one with an amide having the formula <FORM:0686135/IV (b)/2> wherein R is an aromatic or aliphatic radical and X is a chlorine or bromine atom, in the proportion of 1 mol. of allopregnane-3b , 17 a -diol-20-one to 2 mols. of the amide.  As amides there may be used bromacetamide, bromotoluenesulphonamide, bromophthalimide, bromosuccinimide or chlorosuccinimide and the reaction is effected in a suitable solvent, e.g. tertiary-butyl alcohol.  Specification 685,331 is referred to.
Patent GB-1222895-A (GB)
Title: Improved extrusion die and method
Inventor: GLASS HENRY LEE
IPC: B29C48/08
Filed: 1968-05-03
Abstract: 1,222,895. Extruding multi-layer sheets and tubes. DOW CHEMICAL CO. 3 May, 1968 [5 May, 1967], No. 21187/68. Heading B5A. In the production of multi-layer synthetic resin sheets and tubes by extrusion, two or more diverse resins are used, one of which is relatively heat-degradable and normally more corrosive, e.g. polyvinylidene chloride, the arrangement being such that this resin is prevented from contact with all but a minimum of the metal surfaces of the extrusion die head. In the sheet forming die 30 of Fig. 1, the heat degradable resin is delivered thereto by a screw 14. A heatstable resin is delivered from source 26 to plenum 23 and thence to die body 31 such that the heat degradable resin is encapsulated therein. Further laminations are produced using a further heat stable resin delivered to dividers 40-44 from a source 63, the resin emerging from slit orifices 56-60 in the dividers in a direction counter to that of movement of the heat degradable resin and is caused by the latter to flow around the dividers in a manner indicated by the arrowed lines. A sheet product is thereby obtained which comprises heat degradable resin encapsulated in a heat stable resin with the former having embedded therein layers of a heat stable resin. The only part of die 30 which is contacted by the heat degradable resin is passageway 20 which may be nickel plated. An alternative form of divider (76) is also described, Fig. 3 (not shown). It is stated that the sheet may be subsequently stretched to form a film. In the tube forming die head 90 of Fig. 4, degradable resin is delivered from source 129 to be encapsulated by heat stable resin from source 114 prior to entry into channel 118 of die block 91. Channel 118 is divided up into sub-channels 118a-118d, Fig. 5, with between the entry points of the sub-channels extrusion passages 122, 122a, 122b which deliver heat stable resin, also from source 114, in a direction counter to the flow of the heat degradable resin. As a result of this arrangement encapsulated heat degradable resin flows along each of sub channels 118a -118d to be delivered to annular extrusion passageway 161a, Fig. 4, defined between mandrel 140 and block 91. As an optional feature a further heat stable resin from source 108 may be delivered to this passageway, which resin encapsulates the streams from sub-channels 118a-118d, see Fig. 7 (not reproduced). Mandrel 140 is rotatable, as is upper annular die part 153, and rotation of both these members causes a helically layered product to be produced, the number of layers depending on the rates of rotation. In the embodiment of Figs. 4-7, only bushing 130 need be protectively coated.
Patent GB-784705-A (GB)
Title: Refractory bodies containing boron nitride and a boride, and the manufacture thereof
IPC: C04B35/583
Filed: 1955-07-22
Abstract: A refractory body consists of boron nitride and either refractory boride other than zirconium boride and carbon boride, or zirconium or carbon boride together with the ether boride. Specified borides are those of titanium, molybdenum and chromium singly or in admixtures. The boron nitride may be prepared according to Specification 742,326 [Group III] or 777,000 [Group III].  Pore formers e.g., a combustible such as carbon or a volatile substance such as naphthalene or phenolic resin may be included for greater porosity.  The bodies may be crushed to give granules which can be bonded by metals, vitreous or ceramic bonds.
Patent GB-819142-A (GB)
Title: A new or improved idler roller assembly for use with conveyor belts
Inventor: GODSELL ALBERT VICTOR
IPC: B65G39/10
Filed: 1956-07-10
Abstract: 819,142. Endless-belt conveyers. CONVEYING DEVELOPMENTS Ltd. Feb. 6, 1957 [July 10, 1956], No. 21283/56. Class 78 (1). In a set of troughing rollers each inclined roller 11, 12 is spaced longitudinally of the belt in relation to the central roller 10 so that its lower end overlaps the adjacent end of the roller 10 by a variable distance. Each roller 11, 12 is is mounted in a frame 15 which is secured to the base 13 by bolts 17 inserted in either of two sets of holes therein. Means may be provided for varying the inclination of the rollers 11, 12 to the horizontal. Specifications 669,757, 669,758 and 696,648 are referred to.
Patent GB-655395-A (GB)
Title: Process for the production of alkyl aromatic hydrocarbons
IPC: C07C2/70
Filed: 1947-08-06
Abstract: Alkyl aromatic hydrocarbons are obtained by reacting an aromatic hydrocarbon with an olefinic hydrocarbon in the presence of an alkylation catalyst comprising a calcined composite of a phosphoric acid and a siliceous adsorbent, and, if desired, aqueous fluid is added to the reactants in an amount equivalent to that removed from the catalyst with the reaction products while the catalyst is used in a state of hydration greater than that of metaphosphoric acid and preferably smaller than that of orthophosphoric acid, the reaction being effected at 200-450 DEG  C., preferably 225-325 DEG  C., with a pressure of at least 20 atmos., a substantial excess of aromatic hydrocarbon over olefine being maintained throughout the entire reaction.  Pressures instanced are 20-135, preferably 34-68 atmos. and sufficient to retain the reaction mixture substantially in the liquid phase when operating below the critical temperature or at temperatures above the critical temperature the critical pressure should be maintained. The catalysts are of conventional type, it being stated that metaphosphoric acid is substantially inactive and may be used as fixed beds or in dispersions or suspensions.  Normally the reaction is effected in the liquid or mixed phase so that deposits are washed off the catalyst.  The ethylation of benzene is effected at 225-325 DEG  C. and 20-135 atmos. with molar ratios of benzene to ethylene of from 2-25/1 excess benzene serving as a temperature control and to prevent polyethylation.  The amount of aqueous fluid, e.g. water or steam, added will usually be below 2 per cent and is preferably 0.1-1 per cent by weight of reactants charged. Ethyl alcohol may be used to provide ethylene and the required water by dehydration.  In examples, benzene and ethylene were reacted at 275 DEG  C. and 61 atmos. in the presence of a pyrophosphoric acid-diatomaceous earth calcined composite in molar proportions of (1) 11, (2) 8, (3) 4 and (4) 25 to 1, and the respective ratios of monoto poly-ethylbenzene obtained are given; in (5) a similar catalyst is used with a molar ratio of 2 to 1 and pressures of 3.4, 20.4, 40.8 and 61 atmos., the quantity of mono-ethyl benzene made increasing with pressure. Specification 464,752 is referred to.
Patent GB-1328926-A (GB)
Title: Pacemakers
IPC: A61N1/362
Filed: 1971-04-19
Abstract: 1328926 Pacemakers AMERICAN OPTICAL CORP 19 April 1971 [10 Feb 1970] 21461/71 Heading A5R A pacemaker comprises a pulsing circuit for supplying stimulating electrical pulses to a patient's heart, two sources of potential, a timing circuit for controlling the operation of said pulsing circuit, said timing circuit including a charging-discharging element for charging and discharging between minimum and maximum levels, means for controlling a reversal in the charging and discharging of said element responsive to the potential thereof reaching a threshold level, said maximum and threshold levels being proportional to the magnitudes of the sources of potential, the magnitude of one source being subject to variation and means for deriving the other source of potential from said first source to have a magnitude equal to that of said first source of potential less a determined potential drop for continuous operation. Capacitor 57 charges through potentiometers 35, 37 until the voltage across it causes transistors T7, T8 to conduct, whereupon capacitor 57 discharges through potentiometer 37 and transistors T7, T8, transistor T9 conducts, and an electrical pulse is delivered to the patient's heart from capacitor 65. The setting of potentiometers 35, 37 controls the time for capacitor 57 to change to the level which causes conduction of transistors T7, T8, i.e. the interval between pulses. The setting of potentiometer 37 alone controls the time for capacitor 57 to discharge and thus controls the width of the pulse. When transistor T6 remains in a non-conductive state, capacitor 57 continuously changes and discharges and pulses are supplied at fixed intervals to the patient's heart determined by the settings of potentiometers 35, 37 for demand operation, transistor T6 conducts in accordance with pulses appearing on electrode El. A positive pulse is delivered to the base of transistor T6 following the detection of an R-wave, transistor T6 conducts and capacitor 57 discharges through it. This means that an impulse is not generated if a natural heartbeat has occurred and the timing interval is such that impulses are generated with an interpulse interval slightly in excess of the desired natural interheart beat interval.
Patent GB-1019612-A (GB)
Title: Improvements relating to coal-fired heating units
IPC: F23K3/14
Filed: 1962-09-25
Abstract: 1,019,612. Screw conveyer. J. L. MARGETTS. Sept. 25, 1962, No. 25105/64. Divided out of 1,019,611. Heading B8A. A screw feeder 42, Fig. 3, for a coal fired heating unit (see Specification 1,019,611) has a substantial radial clearance in the feed tube 47 whereby a compacted stationary sleeve of fuel is formed in the feed tube 47.
Patent GB-493476-A (GB)
Title: Apparatus for cleaning tubes and like articles internally
IPC: B08B9/04
Filed: 1937-01-02
Abstract: 493,476. Cleaning tubes &c. internally. LUHR, F. A. Jan. 2, 1937, No. 21549. Divided out of 493,435. [Class 99 (ii)] Apparatus for cleaning tubes &c. 15, Fig. 2, internally comprises a spider 11 on which is pivotally mounted, by forked holders 13, one or more sets of percussion tools or striking elements 14 and which is rotated by a shaft 5 mounted in a head .3 supported eccentrically within the tube by an annular wire brush 16, or by spirally-arranged projections 4, Fig. 9. Rotation of the shaft 5 and tools 14 causes rotation of the head 3, but, if desired, the head may be rotated positively through the guide tube, not shown, of said shaft. In a modification, Fig. 4, two sets of percussion tools 14, 14<1> are carried by the head 3, the shafts 6, 6<1> of the tools being rotatably mounted in a plate 20 on the end of the driving shaft 5 and provided at the ends remote from the tools with pinions 21, 21<1> for engagement with a pinion 22 on a central projection 23 of said head. The head may also be fitted with a brush &c. 16 as in the previous construction. Fig. 7 shows a further modification in which the tools 14, 14<1> are pivoted on rotatable spiders 6, 6<1> so that they rotate in a plane passing through, or parallel with, the axis of the tube to be'cleaned.
Patent GB-995831-A (GB)
Title: Device for cleaning the slitted edges of paper webs
Inventor: WATTS RUSSELL EDWARD
IPC: B26D7/18
Filed: 1964-05-25
Abstract: 995,831. Slitting webs. FLEMING & SONS Inc. May 25, 1964, No. 21594/64. Heading B4B. In a slitter in which a paper web 15 fed from a roller 12 is slit by one or more wheels 19 and re-wound on rollers 14, a rotatable circular blade 21 is aligned with the or each wheel 19 and has knife edges 28, 29 for engaging the slit edges of the web to strip loose fibres therefrom. The knife edges 28, 29 are formed by slots 30, 31 which also form knife edges 32, 33 whereby the blade is reversible. The thickness of the blade is greater than the space between the slit edges of the web. A horizontal bar 34 underlies the webs between the blade(s) and a roller 18.
Patent GB-299126-A (GB)
Title: An improved dental plate of the sucker type
IPC: A61C13/24
Filed: 1927-08-17
Abstract: 299,126. D÷bele, O. Aug. 17, 1927. Teeth, artificial.-A suction denture is fitted with a skin, rubber, leather or like membrane c, formed with a very fine central perforation e, and is perforated at d below the membrane. The membrane is held in place by a metal or other ring b embedded in the vulcanite a of the denture and formed with an inwardly extending flange on its upper surface which projects slightly above the base of a cavity f in the denture. On suction being applied the membrane c is deformed so that the perforation e closes and a vacuum is maintained in the cavity f. During vulcanization the membrane may be protected by means of a metal plug applied to the perforations d, e. One or more such membranes and holders may be applied to the lingual wall of a lower denture.